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  • 18101.
    Yang, Bin
    et al.
    Department of Applied Physics and Electronics, Umeå University, Umeå, Sweden.
    Olofsson, Thomas
    Department of Applied Physics and Electronics, Umeå University, Umeå, Sweden.
    Nair, Gireesh
    Department of Applied Physics and Electronics, Umeå University, Umeå, Sweden.
    Kabanshi, Alan
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Energy system.
    Outdoor thermal comfort under subarctic climate of north Sweden – A pilot study in Umeå2017In: Sustainable cities and society, ISSN 2210-6707, Vol. 28, p. 387-397Article in journal (Refereed)
    Abstract [en]

    Outdoor microclimate is important to determine the quality of outdoor spaces. Swedish people cherish summer period and prefer more outdoor activities in summer because of long winter with harsh outdoor environments. People in urban areas use parks for recreation and outdoor activities frequently in summer. Under subarctic climate, limited studies have been performed to explore the effect of microclimate environments on usage of outdoor spaces such as parks. The study explored the relationship of microclimate environments, park use and human behavioral patterns in urban area of Umeå, Sweden, which is under subarctic climate. Observations of naturally occurring behavior were recorded. Structured interviews, based on specially designed questionnaires, were performed during July to August in 2015. Measurements of objective parameters for microclimate environments, including air dry bulb temperature, relative humidity, wind speed, solar radiation and globe temperature, were performed. Human subjective responses from the questionnaire survey were compared with objectively measured results. 49% of local persons still prefer higher solar radiation even under “slightly warm” Thermal Sensation Vote (TSV), which reflects their high expectation to solar radiation. Local persons in Umeå, who expose themselves to a wider climate, are more adapted to subarctic climate than non-local persons.

  • 18102.
    Yang, Canjun
    et al.
    Department of Mechanical Engineering, Zhejiang University, Hangzhou, Zhejiang, China.
    Virk, Gurvinder SinghUniversity of Gävle, Faculty of Engineering and Sustainable Development, Department of Electronics, Mathematics and Natural Sciences, Electronics.Yang, HuayongZhejiang University, Hangzhou, Zhejiang, China.
    Wearable Sensors and Robots: Proceedings of International Conference on Wearable Sensors and Robots 20152017Conference proceedings (editor) (Refereed)
    Abstract [en]

    These proceedings present the latest information on regulations and standards for medical and non-medical devices, including wearable robots for gait training and support, design of exoskeletons for the elderly, innovations in assistive robotics, and analysis of human–machine interactions taking into account ergonomic considerations. The rapid development of key mechatronics technologies in recent years has shown that human living standards have significantly improved, and the International Conference on Wearable Sensor and Robot was held in Hangzhou, China from October 16 to 18, 2015, to present research mainly focused on personal-care robots and medical devices. The aim of the conference was to bring together academics, researchers, engineers and students from across the world to discuss state-of-the-art technologies related to various aspects of wearable sensors and robots.  

  • 18103.
    yang, chun
    et al.
    University of Gävle, Department of Technology and Built Environment. University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för industriell ekonomi.
    xue, le
    University of Gävle, Department of Technology and Built Environment. University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för industriell ekonomi.
    An Exploratory Study of Customer Satisfaction Based on ACSI Model: an application to the No.2 bus service in Gävle of Sweden2009Independent thesis Advanced level (degree of Master (One Year)), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [en]

    This thesis used ACSI model as a theoretical basis, which is a cause-and-effect model, to measure the quality of goods or service that starts from “customer expectations” to “customer satisfaction”. The purpose of this thesis is to find a suitable model for developing the customer satisfaction of No.2 bus service, by examining the relationships between perceived quality, customer expectation, perceived value and customer satisfaction in ACSI model. According to the data from survey of the international students in Gävle University, who lives in Sätra of Gävle of Sweden, this thesis used the partial least squares (PLS) regression to estimates the ASCI model. As a result, the coefficients of each variable and R-square statistics indicate that the relationships between PQ, CE, CS and PV are very weak; PV should be ignored in the case. Therefore, the ACSI model in this case had been revised, and the conclusion can be drawn: the ACSI model was unsuitable for No.2 bus case, furthermore, this study presents a new model for No.2, which is “customer expectation—perceived quality—customer satisfaction”. Consequently, the X-traffic Company should know the customers expectation and provide the service which can meet customer needs. By expanding previous research and based on ACSI model, the study empirically examines the relationships between three customer satisfaction dimensions.

     

  • 18104.
    Yang, Fan
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
    Wang, Dongcan
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
    Challenges and countermeasures of China's energy security2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    To ensure energy security, the first to know what is energy, and second, what are the factors of non-security, means that the challenge of energy security. Finally, puts forward some policy or in the case of a reasonable method to solve it according to these problems. At present, energy security is facing two challenges of structural crisis and crisis management system. Concretely, main problems in that security are analyzed, which are considered to affect China and mostly embody in such four big areas as the great pressure in energy supply, the scarcity of relative energy resources, foreign oil dependence is too large, crisis management systems of energy security, the shortage of green energy. Furthermore the counter measures concerned are proposed, including saving energy and increasing the energy utilization rate, to establish strategic energy reserves, strengthening environmental protection and adjusting the primary energy structure.

    China's rapid economic growth lead to sharp increase in oil imports. Due to China relies on a single chokepoint, the Malacca Strait, which has caused a high degree of concern about the safety of its energy. Nearly three-quarters of its oil imports flowing through the Strait. In view of its strategic importance to China and China’s little sway on the waterway, this view is mainly focused on China’s energy demand and supply in two aspects of concern.

    The paper analysis of whether the current energy structure is appropriate and sustainable. Because the energy security is facing China's energy is more and more dependent on imported fuel and the need to convert energy to meet the demand of modern society and the rapid growth of the requirements of the economic challenges. Concludes that the China's new policy should focus on energy efficiency, energy saving, renewable energy and turned to the main energy source of natural gas.

  • 18105.
    Yang, Frank
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Environmental engineering.
    Goldman, Mattias
    Forum for reforms, entrepreneurship and sustainability (Fores), Stockholm, Sweden.
    Lagercrantz, Jakob
    The 2030 secretariat, Stockholm, Sweden.
    Sustainable Mobility the Chinese Way: Opportunities for European cooperation and inspiration2018 (ed. 1)Book (Refereed)
    Abstract [en]

    The book introduces China's endeavours in sustainable mobility to combat climate change and ease air pollution, including electric vehicles, high-speed rail, shared bikes and cars, etc. Suggestions are given on how Europe and China can learn from each other for a more sustainable world.

  • 18106.
    Yang, J
    et al.
    Guizho University.
    Yang, L
    Guizho University.
    Zhao, Ming
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Gong, M
    Guizho University.
    Reliability Analysis of Hydraulic Oil System Based on L-M Method2012In: Application of Statistics and Management, ISSN 1002-1566, Vol. 6, p. 976-980Article in journal (Other academic)
  • 18107.
    Yang, J
    et al.
    Guizhou University.
    Zhao, Ming
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Hu, W
    Guizhou University.
    Web Software Reliability Analysis Based on NHPP Model2012In: Jisuanji Gongcheng [Computer Engineering], ISSN 1000-3428, Vol. 38, no 14, p. 26-28Article in journal (Other academic)
    Abstract [en]

     This paper proposes a Web Software Reliability Growth Model(SRGM) with BurrX Testing Effort Function(TEF) based on Non-homogeneous Poisson Process(NHPP) and develops its application to Web software reliability analysis. The incorporated TEF depicts the relationship between Web workload and calendar time, and solves the problem about high uneven of Web workload. By using the workload data and failure data from Web logs. Experimental results show that the proposed model can be used to describe the actual failure process more faithfully than G-O model, which is often used to analyze Web software.

  • 18108.
    Yang, Jianfeng
    et al.
    Faculty of Information Engineering, Guizhou Institute of Technology, Guiyang, China .
    Liu, Yu
    Department of Systems Engineering and Engineering Management, City University of Hong Kong, Hong Kong, Hong Kong .
    Xie, Min
    Department of Systems Engineering and Engineering Management, City University of Hong Kong, Hong Kong, Hong Kong .
    Zhao, Ming
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Modeling and analysis of reliability of multi-release open source software incorporating both fault detection and correction processes2016In: Journal of Systems and Software, ISSN 0164-1212, E-ISSN 1873-1228, Vol. 115, p. 102-110Article in journal (Refereed)
    Abstract [en]

    Large software systems require regular upgrading that tries to correct the reported faults in previous versions and add some functions to meet new requirements. It is thus necessary to investigate changes in reliability in the face of ongoing releases. However, the current modeling frameworks mostly rely on the idealized assumption that all faults will be removed instantaneously and perfectly. In this paper, the failure processes in testing multi-release software are investigated by taking into consideration the delays in fault repair time based on a proposed time delay model. The model is validated on real test datasets from the software that has been released three times with new features. A comprehensive analysis of optimal release times based on cost-efficiency is also provided, which could help project managers to determine the best time to release the software. 

  • 18109.
    Yang, Jian-feng
    et al.
    College of Computer Science & Information, Guizhou University, Guiyang 550025, China.
    Zhao, Ming
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production.
    Maximum likelihood estimation for software reliability with masked failure data2013In: Systems engineering and electronics, ISSN 1001-506X, Vol. 35, no 12, p. 2665-2669Article in journal (Refereed)
    Abstract [en]

    The masked data are the system failure data when the exact cause of the failures might be unknown. That is, it is the subset of components known to contain the component causing system failures. In general, the maximum likelihood estimation (MLE) of parameters are difficult to find when there exist masked data, because superposition non-homogenous Poisson process (NHPP) software reliability model cannot be decomposed into the independent NHPP models. In this paper, the MLE of software reliability from masked data is studied based on superposition NHPP models. Finally, numerical example based on simulation data is given to illustrate a good performance of MLE.

  • 18110. Yang, Jianfeng
    et al.
    Zhao, Ming
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics. University of Gävle, Center for Logistics and Innovative Production. Guizhou University, Guiyang, China.
    Hu, Wensheng
    Web software reliability modeling with random impulsive shocks2014In: Journal of Systems Engineering and Electronics, ISSN 1004-4132, Vol. 25, no 2, p. 349-356Article in journal (Refereed)
    Abstract [en]

    As the web-server based business is rapidly developed and popularized, how to evaluate and improve the reliability of web-servers has been extremely important. Although a large number of software reliability growth models (SRGMs), including those combined with multiple change-points (CPs), have been available, these conventional SRGMs cannot be directly applied to web software reliability analysis because of the complex web operational profile. To characterize the web operational profile precisely, it should be realized that the workload of a web server is normally non-homogeneous and often observed with the pattern of random impulsive shocks. A web software reliability model with random impulsive shocks and its statistical analysis method are developed. In the proposed model, the web server workload is characterized by a geometric Brownian motion process. Based on a real data set from IIS server logs of ICRMS website (www.icrms.cn), the proposed model is demonstrated to be powerful for estimating impulsive shocks and web software reliability.

  • 18111.
    Yang, Jiani
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Lin, Zhouni
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Starting to close the communication gap in  Technology transfer to the PRC2012Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Title: “Starting to close the communication gap in technology transfer to the PRC”

    Level: Final assignment for Master Degree in Business Administration

    Author: Jiani Yang,  Zhouni Lin

    Supervisor: Ernst HOLLANDER

    Examiner:  Akmal HYDER

    Date: 2012-May

    Purpose — We have double purpose of promoting SME’s involvement in PRC’s development and technology transfer for sustainability in this research. From the double perspective of Chinese business economics and long run cooperation with Swedish enterprises, we investigate and analysis the main problems faced by SMEs when taking technology transfer to China.  By doing this to help SMEs to overcome the barriers during technology transfer and promote the international technology transfer cooperation in the long run, as well as appeal technology transfer agencies to adopt a holistic approach to help SMEs to plan and implement technology transfer projects effectively and sustainably.

    Design/methodology/approach — We use the technology transfer project in China’s sewage market as our research case to illustrate our research problems. The discussion is based on the existing literatures regarding technology transfer, former researches and authentic cases about technology transfer to China, and interviews with relevant people.

    Findings — The findings indicates there is huge potential business opportunities in China’s sewage treatment market. Information transparency plays a critical role to foster the cooperation between transferor and transfers, as well as promoting SME’s involvement in China. Get directly to the leader taking the decisions is one effective way to get access to China’s market in short term. Communication gap becomes one of the main concerns for SMEs when taking technology transfer to China. In mid-term, organize workshop, get to learn with the local employee, promote the understanding between each other; get to the person who is capable to understand the technology and its effect is necessary; For the long run cooperation, technology transfer process transparency needs to be improved.

    Originality/value — This paper is of value through draw out the fact of common problems of taking technology transfer to China’s sewage market and analysis the reason. Transparency problem during the technology transfer process is drawn and analyzed.  Key points for accessing China’s market by SMEs are produced. 

  • 18112.
    Yang, Jiani
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Zheng, Qiyun
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    The employee’s role in service delivery: the comparative case study of Posten Sweden and China Post2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This study can be used by Posten Sweden and China Post to understand their situation and the facts regarding service quality and the difference between the two. This study will also provide useful information for other post or logistic institutions

  • 18113.
    Yang, Jiawei
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Industrial economics.
    Demand Forecast of China Courier Industry2016Independent thesis Advanced level (degree of Master (One Year)), 40 credits / 60 HE creditsStudent thesis
  • 18114.
    Yang, Liyun
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Caring Sciences. Lishui University, China.
    Dai, Jingjing
    University of Gävle, Faculty of Health and Occupational Studies, Department of Caring Sciences. Lishui University, China.
    The utilization of community health service among Han nationality in Lishui,China:: A cross-sectional questionnaire study2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 18115.
    Yang`, Sen
    et al.
    University of Gävle, Department of Technology and Built Environment.
    Gao, Songyang
    University of Gävle, Department of Technology and Built Environment.
    A new approach for analyzing the RL competence in 3PLs: A case study of FLB2009Independent thesis Advanced level (degree of Master (One Year)), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [en]

    Purpose – The purpose of our thesis is to introduce a new approach to help small and medium third party logistics service providers (3PLs) to develop and improve their Reverse logistics.

     

    Design/methodology/approach – A case study was adopted, and a qualitative questionnaire and face-to-face interview were used to collect the fundamental data. In addition, the multi-criteria decision-making tool-AHP and the Reverse Logistics audit model were used to analyze the case and to solve the problem of 3PLs in Reverse Logistics improvement.

     

    Findings – Under the fierce competition and in today’s volatile market, the Reverse Logistics is considered as a new competitive advantage to many 3PLs. However, the effective solutions in instructing 3PLs how to develop and improve their Reverse Logistics competence are still very scarce. Based on these, a new approach will be presented in this thesis to help 3PLs to solve problem.

     

    Limitations – There are two main limitations in our paper, which emerge in the two models we adopted. Regarding the Reverse Logistics audit model, we need more data of the case company to support our research. For the AHP method, the limitation is:  the fact that general assumptions were used to provide correlative data in computation, and complex computation was simplified in order to show calculative processes clearly.

     

    Practical implications – FLB, the case company will be researched to verify the practical implication of our new approach. We believe through our approach, lots of small and medium size 3PLs will find it easier to get a holistic view of their RL competence, and know how to develop or improve it.

     

    Originality/value – How to evaluate and assess the RL competence will be presented separately from inside view of 3PLs and outside view of their customers. AHP and self-made RL audit model will be used to achieve then respectively.

     

    Keywords Reverse logistics, Analytic hierarchy process, Assessment tool, and 3PLs 

     

    Paper type Case study/ Research paper

  • 18116.
    YANG, TINGTING
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    SHAO, YINGNAN
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Differences Between Chinese and Franch Companies Regarding Total Quality Management: A Case Study of JKKR Co., Ltd and Veolia Water Group2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    There is a research about the essences and processes of Total Quality Management (TQM) implementation and its effects on organization performance. The results from the research report indicate that the adoption of TQM in China is extensive (Yusuf, Gunasekaran & Guo, 2007). Although many Chinese manufacturing firms began to implement TQM from 1978 onwards, China still lacks effective TQM systems and applications at the business level (Zhao, 1995). TQM is an effective method to improve business performance. It is expected that quality management will help quality people in manufacturing firms and industries, not only in China but also in other developing countries.

    This thesis aims to identify differences between Chinese and French companies regarding three of five cornerstones of TQM. They are customer focus, process focus and continuous improvement. The aim is to explain why differences exist and also examine how the companies are performing in TQM aspects as well.

    In this thesis the authors follow a research design and collect data from interviews and documentation to provide the theoretical framework and obtain empirical evidence for the thesis.

    Based on the findings, the authors compared the two companies regarding the three cornerstones. The reasons why there are the differences between the two companies are mainly social policies and the companies’ development stages.

    From the study, the authors raised some new ideas of cornerstones. Compared with Gauttam (2010), who gave an idea of The Four Pillars of TQM, the authors think that the processes are as significant as the customers. Thus, the authors made a new theory model to state their understanding of the relationship between TQM cornerstones, which is a contribution to theoretical framework. 

  • 18117.
    Yang, Tingxiao
    University of Gävle, Faculty of Engineering and Sustainable Development.
    The Algorithms of Speech Recognition: programming and simulating in MATLAB2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The aim of this thesis work is to investigate the algorithms of speech recognition. The author programmed and simulated the designed systems for algorithms of speech recognition in MATLAB. There are two systems designed in this thesis. One is based on the shape information of the cross-correlation plotting. The other one is to use the Wiener Filter to realize the speech recognition. The simulations of the programmed systems in MATLAB are accomplished by using the microphone to record the speaking words. After running the program in MATLAB, MATLAB will ask people to record the words three times. The first and second recorded words are different words which will be used as the reference signals in the designed systems. The third recorded word is the same word as the one of the first two recorded words. After recording words, the words will become the signals’ information which will be sampled and stored in MATLAB. Then MATLAB should be able to give the judgment that which word is recorded at the third time compared with the first two reference words according to the algorithms programmed in MATLAB. The author invited different people from different countries to test the designed systems. The results of simulations for both designed systems show that the designed systems both work well when the first two reference recordings and the third time recording are recorded from the same person. But the designed systems all have the defects when the first two reference recordings and the third time recording are recorded from the different people. However, if the testing environment is quiet enough and the speaker is the same person for three time recordings, the successful probability of the speech recognition is approach to 100%. Thus, the designed systems actually work well for the basical speech recognition.

  • 18118.
    Yang, Tingxiao
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Electronics, Mathematics and Natural Sciences.
    Zenteno, Efrain
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Electronics, Mathematics and Natural Sciences, Electronics. Royal Institute of Technology, KTH. Signal Processing Laboratory, Stockholm, Sweden .
    Björsell, Niclas
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Electronics, Mathematics and Natural Sciences, Electronics.
    Measurement imperfections impact on the performance of digitally predistorted power amplifiers2014In: 2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings, 2014, p. 230-233Conference paper (Refereed)
    Abstract [en]

    This paper presents an study of the impact of analog to digital converter (ADC) impairments on digital pre-distortion (DPD) techniques when applied to RF power amplifiers (PA). The DPD technique is described by a memory polynomial model while the ADC impairments are modeled by quantization noise, random jitter, and the integral nonlinearity (INL); thus, summarizing systematic and random nature of ADC imperfect measurements. It is observed that increased jitter will have a negative impact on the modeling but not so much on the output performance from the pre-distorted PA. Moreover, the ENOB can be used as metric for both the quantization noise and integral nonlinearity and there is a value of ENOB which, if exceeded, do not improve the DPD performance; in this paper it is about 8 bits.

  • 18119.
    Yang, Xinping
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Navigating/Browsing In 3D with WebGL2010Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The use of the internet has become very important in our daily life. At present, web pages are mostly shown as two-dimensional content. Three-dimensional web pages are rarely seen on the Internet. In this thesis, the main task is to develop an interactive 3D (three-dimensional) web prototype for the company Interactive TV Arena. This three-dimensional web prototype will be integrated to the OSIA (open server interface architecture) project which is a project in Interactive TV Arena. In order to implement the prototype, three main tasks were addressed: The first is creating the framework of the prototype with XML files. Secondly, a parser framework was built with JavaScript classes. The third task is to render the prototype with WebGL in real time. The prototype can be used to develop the 3D web pages in modern browsers. This thesis has completed most of the aforementioned tasks and the result of it can be used to develop some simple 3D web pages.

  • 18120.
    Yang, Yanqing
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Segmentation of digital urban maps into region2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    With the rapid development of urban areas, the areas which may be used for new buildings are becoming smaller and smaller. Cities are divided into different areas based on the activities in these areas, a process called functional zoning. Depending on the functional zone, different kinds of buildings may be built. This thesis consists of two parts. The first part discusses segmentation of functional zones and image pre-processing such as morphological closing. The other part is about finding suitable building areas in Google maps. The thesis also presents an algorithm, implemented in Matlab, which provides a simple and efficient way of finding suitable building areas using Google maps.

  • 18121.
    Yang, Yuchen
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
    Liang, Jieqiong
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
    Energy Audit for the Gävle University Library2013Independent thesis Basic level (degree of Bachelor), 15 credits / 22,5 HE creditsStudent thesis
  • 18122.
    Yangqing, Sun
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences. Lishui University, China.
    Ling, Zou
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences. Lishui University, China.
    Patients’ experiences of living with type Ⅱ diabetes: A descriptive literature review2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 18123.
    Yanhan, Jin
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Caring Sciences.
    Yilan, Ling
    University of Gävle, Faculty of Health and Occupational Studies, Department of Caring Sciences.
    Women’s experience of postpartum depression: : A descriptive literature review2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 18124.
    Yao, Li
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
    ENERGY AUDIT OF HIG STUDENT HOSTEL2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Nowadays in the world, energy usage effectiveness has always been an issue which blocks people’s development. How to effectively use the energy is becoming more and more important. Energy audit can appraise the energy usage condition of a building, and come up with improvement advices through systematic calculation and analysis the existing problems and reasons for energy wastes, in order to bring the object of effective usage of energy into reality.

    HiG student hostel 23 is situated in Gävle, a coastal city in the east of Sweden. There are three floors in Hostel 23, the first and second floor have 18 single rooms, 4 double rooms and 2 communal kitchens and the third floor is storeroom. The aim of this thesis is to explore indoor climate and energy use for this student hostel and find out the reason of the low temperature inside the room, seeking some ways to improve the thermal comfort inside the building during winter conditions.

    First, collect date from every part in energy balance by measurement and interview with administrator, then calculate and analyze the data. At last, the whole energy balance can be estimated. Through analyzing the whole energy balance, the suggestion is to change the window type and design a new ventilation system operating plan. Through the optimization, energy loss is reduced, and about 10% of the energy is preserved. Besides this, the building infiltration loss is too high through this energy audit; it states there still exists some problems. If these problems can be solved, it will be helpful to keep a good thermal comfort inside the building.

  • 18125.
    Yao, Li
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
    Liao, Xinyan
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
    Energy Audit of HiG Examination Building2014Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Nowadays, energy is becoming more and more important. With the development of society, the demand of energy is also increasing correspondingly. There is 22% of the total energy which is used in building part. A more effective and sustainable energy system becomes necessary due to increasing energy prices and demand. The aim of this thesis is to make an energy survey of this building, evaluating different sources of energy supply and losses in this building. By evaluating, a better thermal comfort is expectedly achieved when having examinations, and a possible saving method is also expected in order to reduce the cost of this system.

     In this project, the building is located in University of Gävle which is surveyed. It has 2 floors. The first floor is underground as a basement. An examination room is included in the second floor. There are a space heating system and heating recovery system ventilation in this examination building.

    At first step of analysis, the data of construction, ventilation, district heating and hot tap water were arranged by Mr. Magnus. Secondly, an energy balance had been done, and it helped to make energy input and output more clearly. In energy supply part, the solar radiation is 22.4MWh, the internal heat from people is 1.95MWh, the internal heat from equipment is 5.63MWh and district heating is 184MWh. In energy losses part, the transmission loss is 165MWh, the mechanical ventilation loss is 38.3MWh, the infiltration loss is 8.38MWh and the hot tap water is 2.09MWh. Thirdly, results of calculations were analyzed. At last, the optimization methods were given to save energy. The optimization methods were changing type of windows and improving indoor temperature which influenced the transmission loss part. Another method was reducing operating time of the ventilation system.

    Through these optimizing methods, the total energy use is reduced from 214MWh to 179MWh, and district heating is reduced from 184MWh to 149MWh. District heating of this building is supplied by Gävle Energi company, which is able to save 20% cost by these optimizing methods. According to the investment analysis, 19thousand SEK energy is saved per annum.

  • 18126.
    Yao, Tianxiang
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Towards an understanding of Human resource management In Furniture Company    2010Independent thesis Basic level (degree of Bachelor), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [en]

    Aim: With today’s rapid economic development, human resource is the only major success in continuing operations. In fact, my parents are engaged in furniture retail industry in south of China, Guangzhou. In the company’s daily operations, we found a lot of issues about human resource management. Employee’s demission and training, and the negative attitude become major obstacles in the way of our company’s development. Through HRM study, I want to understand what factors affect staff movement behavior and loyalty to the company, in order to deal with the staff situation in the company more efficiently.

    Method: In this thesis, the case study approach was used. Case study research is suitable for explanatory, descriptive and exploratory. Our research chooses two in-depth case studies that base on the interviews with human resource managers. The information that we collect is from qualitative interviews. Through loyalty and movement theory, to identify which factors are affecting staff movement behavior and loyalty to company, as well as analyze how to solute the issue in my family company.

    Result & Conclusions: After discussion and analysis, the study found: high wages is not the only way to retain employees. Money as reward can cost a lot, and it’s impersonal. Workplace, leadership style, enterprise potential, training opportunity and promotion space also can affect employee loyalty. According to Motivator-Hygiene Theory, to establish motivation system, exciting staff’s enthusiasm for the work. Let staff realize that the successes of the company are directly connected to their performances; staff have responsibility for company’s successes. This is a powerful way to keep employee motivated. For company development of long standing, organization should command constantly more new technology. Staff as the work of actors, to learn more work skills is essential. Employees and the company’s desire is the same. Companies focus on their own development, but also to enhance staff capacity. For development of the company, it should give staff more training and promotion opportunities.

    Suggestions for future research: It has to note that the limitation of this study is the small number and the limited scope of interviewees.

    Contribution of the thesis: In this study, I mainly find the solutions that the issues in my family company. After discussion and analysis, I am cognizant of the long-term relationship between staff and organization is important for company development. The rewards for the employee are not just money, but also can be other. That effect and help my family firm staff management.

  • 18127.
    Yao, Xiaobai Angela
    et al.
    Department of Geography, University of Georgia, Athens, USA.
    Huang, Haosheng
    Department of Geography, Universitat Zurich Institut fur Geographie, Zurich, Switzerland.
    Jiang, Bin
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS.
    Krisp, Jukka M.
    University of Augsburg, Augsburg, Germany.
    Representation and analytical models for location-based big data2019In: International Journal of Geographical Information Science, ISSN 1365-8816, E-ISSN 1365-8824, Vol. 33, no 4, p. 707-713Article in journal (Refereed)
  • 18128.
    Yao, Xiaobai
    et al.
    University of Georgia, Athens, United States .
    Jiang, Bin
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Geospatial modeling of urban environments2009In: Environment and Planning, B: Planning and Design, ISSN 0265-8135, E-ISSN 1472-3417, Vol. 36, no 5, p. 769-771Article in journal (Other academic)
  • 18129. Yao, Xiaobai
    et al.
    Jiang, Bin
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS.
    Liu, Yu
    Madden, Marguerite
    New insights gained from location-based social media data: VSI Preface for the special issue on New insights gained from location-based social media data2016In: Computers, Environment and Urban Systems, ISSN 0198-9715, E-ISSN 1873-7587, Vol. 58Article in journal (Refereed)
    Abstract [en]

    In the era of big data, increasingly sizeable datasets come from social media, particularly location-based social media, in the form that is widely known as user-generated contents. Many social media datasets are made available at the finest spatial and temporal scales. The availability of such data creates unprecedented opportunities for researchers to uncover what were previously hidden in the era of small data. What kinds of new research questions may be addressed with the available social media data? What are the social, ethical, and political implications of the wide use of social media platforms and the availability of such data? This special issue responds to the unique research opportunities and challenges from two broad perspectives. First, it looks at the need to develop new theories and data models for the management and analysis of social media data. Secondly, it advocates innovative acquisition and employment of social media data to enhance our understanding of human activities, social and spatial interactions, or the society as a whole. The inspiration for this special issue was the first ever International Conference on Location-based Social Media (ICLSM) held March 5-7, 2015 in Athens, Georgia, USA that brought together researchers from around the globe to discuss geosocial analysis and modeling of social media data. Geographers, GIScientists and social scientists gathered to report on the unique opportunities of collaboration and insights that can be gained from the analysis of location-based social media data collected from sources such as Facebook and Twitter. Participants shared innovative methods for social media data mining, big data analytics, social network analysis, social media data models and representations, human mobility and patterns of interaction.

  • 18130.
    Yao, Zhilei
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development.
    He, Yin
    University of Gävle, Faculty of Engineering and Sustainable Development.
    Sustainable Development at University: comparison of students’ knowledge, awareness and actions2010Independent thesis Advanced level (degree of Master (One Year)), 40 credits / 60 HE creditsStudent thesis
    Abstract [en]

    After the Rio United Nations Conference on Enviroment and Development, the need of sustainable development obtained recognition from the vast majority of countries and organization. Human society entered a new development period. More and more people know about sustainable  development. Education for sustainable development is a concern for the world where university can make a  contribution. Students who are the majority in a university, their knowledge, awarenss and action will play an important role to promote sustainable development.  

    The purpose if this thsis is to study if there is any difference in students' knowledge and awareness on sustainable development in university, based on the comparison betweet freshmen and seniors. Through the comparison, this will explore if students' knowledge and awareness is influence  to their action. This thesis does a literature review to understand deeply about sustainable development and explores students' knowledge, awareness and actions of sustainable development through questionnaire. 

    The analysis of data from the questionnaire indicates that their knowledge and awareness influences their actions. The freshmen and seniors have difference in knowledge and awareness. Knowledge of students on sustainable development appears to have increased slightly during years study. However, as the knowledge increased, there is not much difference in their knowledge and awareness of sustainable development. Based on the different degree of knowledge and awareness, seniors appear to do better than freshmen in their actions.

  • 18131.
    Yassin, Hannan
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Björklund, Jessica
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Erfarenheter av budgetlös styrning2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Sammanfattning

    Titel:

    Erfarenheter av budgetlös styrning

    Nivå:

    C-uppsats i ämnet företagsekonomi

    Författare:

    Hannan Yassin och Jessica Björklund

    Handledare:

    Tomas Källquist och Stig Sörling

    Datum:

    2015 - Juni

    Syfte:

    Enligt tidigare forskning är det mer än 30 år sedan debatten kring budgetlös styrning började. En del företag valde då att överge budgeten vilket har lett till erfarenheter av den budgetlösa styrningen i praktiken. Syftet med denna studie är att belysa de erfarenheter av budgetlös styrning som finns med avseende på planering, uppföljning och tidsåtgång.

    Metod:

    Studien har utgått från ett hermeneutiskt perspektiv med en abduktiv ansats. Den teoretiska referensramen har byggts upp genom att sammanställa tidigare forskning och det empiriska materialet har samlats in genom en kvalitativ metod där semi-strukturerade intervjuer genomförts. Den teoretiska referensramen och empirin ställdes sedan mot varandra för hitta likheter och skillnader.

    Resultat & slutsats:

    Studien visar att erfarenheterna kring budgetlös styrning har likheter med tidigare forskning. Dock har vi sett att kritiken mot uppföljning i tidigare forskning om budget inte helt stämmer överens med de erfarenheter vi har tagit del av. Erfarenheterna visar även att den budgetlösa styrningen går att kombinera med en budget beroende på vilka egenskaper det är önskvärt att styrningen ska ha.

    Förslag till fortsatt forskning:

    I vår studie har vi fokuserat på budgetlös styrning men vi har sett att det finns aspekter att undersöka i kombinationen mellan styrningar. Vi anser att framtida forskning kan undersöka hur de olika egenskaperna hos styrningskoncepten är kombinerade eller hur de skulle kunna kombineras.

    Uppsatsens bidrag:

    Efter att ha analyserat erfarenheterna kring budgetlös styrning har vi sett att budgetstyrning och budgetlös styrning inte ska ses som en dikotomi. Studien ger ett mer nyanserat perspektiv av styrmedel jämfört med den ensidiga debatten som pågick för över 30 år sedan.

    Nyckelord:

    Budget, budgetering, budgetlös styrning, ekonomistyrning.

  • 18132.
    Yawli, Angelica
    University of Gävle, Faculty of Education and Business Studies, Department of Educational sciences.
    Högläsning i förskolan: En litteraturstudie om högläsningens möjligheter att bidra till barns språkutveckling och förståelse för tryck2015Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Detta är en studie vars syfte är att sammanställa aktuell forskning angående högläsning i förskolan och dess möjliga inverkan på barns språkutveckling och förståelse för tryck. Detta har gjorts för att det utifrån läroplanen för förskolan (Skolverket, 2010) kan anses som viktigt för lärare i förskolan att få kunskap om ämnet för att på bästa sätt kunna stötta barns språkutveckling och förståelse för tryck. Sökord som jag använt är reading, preschool, read-aloud, shared reading och print. Efter databassökning valde jag ut artiklar som jag ansåg relevanta för mitt ämnesområde för att i nästa steg läsa och analysera innehållet. Det resultat jag kommit fram till tyder på att högläsning i förskolan kan bidra till att utveckla barns språk och förståelse för tryck men att det är flera yttre faktorer som också påverkar. En komponent som återkommande ansågs som viktig var läraren. De val som läraren gjorde både före, under och efter högläsning är något som enligt forskning inverkar positivt på barns språkutveckling och förståelse för tryck. Särskilt viktigt poängteras lärares vidareutbildning med fokus på högläsning vara för att läraren ska ha förmåga att under högläsning bidra till barns språkutveckling samt deras förståelse för tryck.

  • 18133.
    Yazdanfar, Camellia
    et al.
    Department of Geology, University of Golestan, Iran; Department of Geology, University of Uroumieh, Iran.
    Nemati, Majid
    Department of Geology, Faculty of Science and Earthquake Research Center of Shahid Bahonar University of Kerman, Iran.
    Agh Ataby, Maryam
    Department of Geology, University of Golestan, Iran.
    Roustaei, Mahasa
    Geological Survey of Iran, Iran.
    Nilfouroushan, Faramarz
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS. Geodata Division, Lantmäteriet, Gävle, Sweden.
    Stress transfer, aftershocks distribution and InSAR analysis of the 2005 Dahuieh earthquake, SE Iran2018In: Journal of African Earth Sciences, ISSN 0899-5362, Vol. 147, no 86, p. 211-219Article in journal (Refereed)
    Abstract [en]

    In this paper, the authors studied the 2005 Dahuieh Zarand earthquake in SE Iran by combining Coulomb stress changes, InSAR study, locally recorded aftershocks and their spatial correlations, co-seismic slip distributions, Iso-seismal curves, and strong ground motion data. The event (MW 6.4) occurred in Kerman province, SE Iran, on February 22, 2005. The locally recorded aftershocks were used to calculate the Coulomb stress changes and the decay time based on Omori’s law. The decay time of aftershocks calculated by Omori’s law was about 500 days. A great correlation was particularly deduced from the spatial distribution of the aftershocks and areas of increased Coulomb stress for optimal strike slip faults. Moreover, using SAR Interferograms, we determined the postseismic surface deformations. Also, the majority of the coseismic slips occurred in the eastern part, where there was sparsely distributed aftershocks. The deformation maps showed active uplift for at least 300 days after the main shock. We reconciled time decays of the aftershocks with the postseismic uplifts, calculated from InSAR. In our model, which is based on after slip evolution, for one of the postseismic relaxation mechanisms, we found a proper correlation between the aftershock decay time and InSAR displacement maps to define postseismic motions. There is also a reasonable correspondence between the mainshock intensity, the acceleration map, and postseismic ground uplift, estimated by InSAR.

  • 18134.
    Ye, Heshan
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Wu, Jiading
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Selection of a Logistics Service Provider Based on Analytic Hierarchy Process (AHP) Approach: A case study of Swedish Coffee Manufacturer—Gevalia2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Logistics outsourcing has been applied in practices by enterprises for decades, but its efficiency is always restricted because logistics service providers (LSPs) often only have a single function such as delivery or warehousing. In the last few years, LSPs have upgraded their capabilities to support some other logistics services including value-added services, materials management, information-related services etc. The purpose of this thesis is to identify the differences between self-built logistics system and outsourcing logistics system by using the Strengths Weaknesses Opportunities Threats (SWOT) strategic analysis; and figure out how to apply the Analytic Hierarchy Process (AHP) to make an appropriate selection among LSPs that based on the single-case study of Gevalia. Both quantitative and qualitative methods have been used in this study, authors expect to describe and explore the application of AHP approach regarding to the case company which implements outsourcing logistics system. Accordingly, it could be a good idea for case company to implement the mixed mode of self-built and outsourcing logistics system after using the SWOT strategic analysis. In addition, the production and logistics manager of case company emphasized that the five selection criteria including “compatibility”, “delivery performance”, “location”, “management” and “cost” should be considered as a priority among other different criterion when he selected a LSP. As a result, it will be efficient and effective for us to simulate a best decision for those industrial manufacturing enterprises to achieve a path regarding to the selection of the best logistics partner that based on the significant AHP approach.

  • 18135.
    Ye, Minghui
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences. Lishui University, China.
    Tao, Jun
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences. Lishui University, China.
    Parents' experience of having premature baby: A literature review2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 18136.
    Ye, Zi
    University of Gävle, Faculty of Engineering and Sustainable Development.
    Supply chain risk management on natural disaster: A study of global supply chain influence by2011Tohoku earthquake2011Independent thesis Basic level (degree of Bachelor), 15 credits / 22,5 HE creditsStudent thesis
  • 18137.
    Ye, Ziqiao
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Tessellation of the sphere with different compression techniques2010Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Many kinds of data have a spherical representation, the idea is to tessellate the "sphere" in an efficient way and then decode the data so it can be compressed easily. In this paper, the process of exploration will start from the basic spherical wavelet-like to some new tessellation compression techniques in 3D to decompose the sphere with squares or triangles. The produced tessellation will have more round corners and the artefacts will be less prominent. Earth map will be textured on the sphere to compare the effect of different compression techniques.

  • 18138.
    YEHONG, LUO
    University of Gävle, Faculty of Health and Occupational Studies, Department of Social Work and Psychology.
    Research on the situation of deaf-mute Children of Migrant Workers in Guiyang, China2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This report is the outcome of a Field Study project. The aim of the study was to findout how the floating deaf-mute children of migrant workers experience psychologicalproblems in Guiyang, China. Bronfenbrenner’s ecological system theory was used asa theoretical frame. Semi-structured interviews were carried out with 4 inner migrantcouples who have deaf-mute children receiving treatment in a Center for disabled inGuiyang. 12 professionals working with treating deaf-mute children are alsointerviewed as well as 5 deaf-mute children. In total together 21 informants areinterviewed. The result of this study shows that three main aspects influence thepsychological problems of floating deaf-mute children with migrant parents most:social welfare policy, family income conditions and the center of treatmentenvironment. This study explored the problems based on Brofenbreener’s ecologicalsystems approach, which for the author had a new perspective to research on thesituation of deaf-mute children of migrant workers in Guiyang, China.

  • 18139.
    Yekkalam Lary, Nazanin
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
    Energy Balance and Temperature Rise Study in Cutting Station at Sandvik AB2012Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The project is a detail study of Energy Balance in cutting line station in Sandvik Mining and construction group.

    The aim of the project is reducing temperature and making a temperature balance inside the cutting line. During the recent years, many changes occur in production line. Existing cooling system cannot supply cutting area temperature below the desired level. Electrical Cables are melting due to high inside temperature. We attempted to study the old drawings and existing cooling system in cutting station to find out solutions to optimize and rebuild the old system. First part of study contains checking of preliminary air and water cooling system drawings. In the second part we looked at the operating cooling system by measuring different available working conditions such as inside temperature, air velocity and cooling water flow rate with different measuring equipment. The study integrate hot and cold stream (cooling air and water system) at different temperature level and in different times through production or non-production hours. Finally results and solutions can give valuable guidance for enterprises on how cooling systems should be expanded, what sizes should the new equipment have, where should the heat recovery exchangers be built, what new pipelines are needed, etc. To find more accurate results, we tried to do all measurements simultaneously, but due to difficult working condition it was not possible to have all input data at the same time. According to the primary data energy consumption during different times and Peak consumption amounts were calculated. Results consider the differences in cooling system effects inside the cutting line and the system which generates more cooling load and needed more improvements.  The summer and winter conditions are different inside the work area. The simultaneous assurance of ventilation, energy reduction and occupant health remains a design challenge. Working area is a unman area; therefore environmental impact are not considered in this research.

  • 18140.
    Yenigun, Cigdem
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences.
    Arbetslöshetens inverkan på nyanlända: En studie om eftergymnasialt utbildade nyanländas upplevelser av arbetslöshet2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this study was to examine mental health in relation to unemployment among newly arrived with post-secondary education. This was to get a deeper understanding about their experiences regarding unemployment despite their high education, the focus was on mental health and how they think their future looks like. The method used for the following study was an empirical qualitative method in which the author used the semi-structured interviews. Five participants were interviewed, four men and one woman between the ages 20-64. The results of this study found that newly arrived people with post-secondary education had poor mental health because of worries about the future. They also felt that the education they had received from their country was a waste in Sweden. These people also had a temporary residence permit which brought frustration because their future wasn’t secure. The conclusion of this study was that newly arrived individuals with post-secondary education wanted Psychological help from the society so they could start working. 

  • 18141.
    Yermakova, Irena
    et al.
    International scientific training centre for information technologies and systems.
    Boiko, K
    Bortkiewicz, A
    Hallman, David
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, CBF. University of Gävle, Centre for Musculoskeletal Research.
    Lyskov, Eugene
    University of Gävle, Faculty of Health and Occupational Studies, Department of Occupational and Public Health Sciences, CBF. University of Gävle, Centre for Musculoskeletal Research.
    Heart rate, blood pressure and electromyogram in assessment of physical activity fatigue using neural network model2011Conference paper (Refereed)
  • 18142.
    Yi, Fu
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Caring Sciences.
    Qunzhan, Zhang
    University of Gävle, Faculty of Health and Occupational Studies, Department of Caring Sciences.
    The Effect of life review on depression and depressive symptoms in adults: A descriptive literature review2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 18143.
    Yi, Li
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences. Lishui University, China.
    Xieyan, Yu
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences. Lishui University, China.
    Registered nurses' reflections on nursing students' caring for end-of-life patients in a youth volunteer service: An interview study2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 18144.
    Yi, Wu
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Caring Sciences. Lishui University, China.
    Xia, Mao
    University of Gävle, Faculty of Health and Occupational Studies, Department of Caring Sciences. Lishui University, China.
    How registered nurses can work to support the middle aged and aged adults suffering from sleep disorders2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 18145.
    Yi, Xing
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Caring Sciences. Lishui University, China.
    Chen, Zhang
    University of Gävle, Faculty of Health and Occupational Studies, Department of Caring Sciences. Lishui University, China.
    Patient’s Experiences of Having Lung Cancer: -  A descriptive review2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 18146.
    Yi, Xueying
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
    Solla, Ivette
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
    Analyzing the Challenges and potential Opportunities for a Swedish Newly Established Firm when entering the Chinese Food Market: a marketing study for BIM in Zhuhai City2010Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    China has become one of the largest markets for business investments. A great number of foreign companies have showed interest in the Chinese market; even more when they seen how other companies have succeeded in the crossover. However, not everyone has been lucky enough to be successful in the Chinese market; this is especially true for small firms. Small companies have faced big troubles when entering the Chinese market; specifically those who decided to go international after a mere few years. In this study, we will show the challenges and potential opportunities for Swedish newly established firm when entering Chinese market. The company chosen was a Swedish food company called BIM, which also promotes healthy life styles.

       

    The authors begins the paper by briefly introducing the BIM company, background of this study, and some definitions, such as the Chinese concept of networking or Guanxi, the difference that exists between Swedish and Chinese managerial style and negotiating style and how can all of these issues can make a difference in succeeding in China. Next, the authors introduce the theoretical model which is a combination of opportunities; such as: costs of labour, market size and availability of resources; and barriers such as: networking, bureaucracy, culture, managerial and negotiating style. 

     

    Finally, the results show that new established companies that acknowledge the importance of a well establish network will have a bigger chance to succeed while doing business in China. A marketing study and interviews for the company BIM are shown in the appendix to assess opportunities and challenges before and after entering the Chinese market.

  • 18147.
    Yifan, Wang
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Yizhang, Huang
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
    Urban Wind and Thermal Environment Simulation - A Case Study of Gävle, Sweden2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    As urbanization and industrialization progressed during the last decades, Urban Heat Island (UHI) has become a major environmental issue to many cities around the world. The effect of UHI differs from area to area due to varying urban scale, population density, construction of urban surface layer, the level of industrialization and type of climate. Researchers have made great efforts in investigating various approaches to Urban Heat Island studies. Monitoring technologies have been widely used in this field, especially Geographic Information System (GIS) and remote sensing technology. Computational Fluid Dynamics (CFD) simulations are also actively applied in wind engineering, which can provide details of air flow over urban areas. The combined application of these technologies can provide the monitoring and simulation of urban wind corridor and thermal environment that can produce relevant information at a lesser time.A research using GIS, remote sensing technology and CFD simulation was done in this project to obtain a holistic view of the urban thermal environment and wind flow for Gävle City. With GIS and remote sensing the thermal image of the city was presented. The temperature data, which were collected from MODIS satellite were transferred and processed by ArcGIS and Global Mapper. The wind flow above the city was simulated through constructing geometric and mathematical model with OpenFOAM. The outcomes of the modeling and simulation identified that the temperature in the city center could possibly reach 35℃ during summers, which can cause the Urban Heat Island to form. Ventilation was also poorer in the city centre, and neither the river nor the green area in the southwest could help ventilate the city. The study result also suggested that certain sites in the city had relatively high wind flow for urban wind turbines to work.This study had used method of Urban Heat Island study with remote sensing and CFD technologies. The model produced from simulation could also be used to further study Gävle city's thermal and wind environment to produce more accurate results.

  • 18148.
    Yilin, Ding
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Caring Sciences. Lishui University, China.
    Zhou, Zhou
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences. Lishui University, China.
    Women’s experience of living with cervical cancer: – A descriptive  review2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 18149.
    Yilun, Xin
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences. Lishui University, China.
    Yinyan, Wang
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences. Lishui University, China.
    Kind of support interventions and effects of them on self-management for patients with hypertension: A descriptive literature review2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 18150. Yin, Li
    et al.
    Sundberg, Rolf
    Wang, Xiaoqin
    University of Gävle, Department of Mathematics, Natural and Computer Sciences, Ämnesavdelningen för matematik och statistik.
    Rubin, Donald
    Control of confounding through secondary samples2006In: Statistics in Medicine, ISSN 0277-6715, E-ISSN 1097-0258, Vol. 25, no 22, p. 3814-3825Article in journal (Refereed)
    Abstract [en]

    The control of confounding is essential in many statistical problems, especially in those that attempt to estimate exposure effects. In some cases, in addition to the 'primary' sample, there is another 'secondary' sample which, though having no direct information about the exposure effect, contains information about the confounding factors. The purpose of this article is to study the influence of the secondary sample on likelihood inference for the exposure effect. In particular, we investigate the interplay between the efficiency improvement and the possible bias introduced by the secondary sample as a function of the degree of confounding in the primary sample and the sizes of the primary and secondary samples. In the case of weak confounding, the secondary sample can only little improve estimation of the exposure effect, whereas with strong confounding the secondary sample can be much more useful. On the other hand, it will be more important to consider possible biasing effects in the latter case. For illustration, we use a formal example of a generalized linear model and a real example with sparse data from a case-control study of the association between gastric cancer and HM-CAP/Band 120. Copyright (c) 2006 John Wiley & Sons, Ltd.

360361362363364365366 18101 - 18150 of 18776
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