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Search Results: 1 - 10 of 64524 matches for " Wei Ren "
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Multiuser Receiver Scheme with SIC for PUCCH in High Speed Train Environment  [PDF]
Wei Wang, Guangliang Ren
Communications and Network (CN) , 2013, DOI: 10.4236/cn.2013.53B2057
Abstract: A multiuser receiver scheme with successive interference cancellation (SIC) is proposed to suppress multiuser interference for physical uplink control channel (PUCCH) in high speed train (HST) environment. In the proposed algorithm, each user’s signal is detected iteratively in a descending order according to the signal strength at eNB. During each iteration, the strongest signal of all users’ is detected and regenerated, and then is subtracted from the composite signal before decoding the next user. Simulation results show that the proposed scheme obtains remarkable gains, e.g. 2 dB for PUCCH format 2 with 3 users in HST scenario 1. The improvement is more pronounced in the case of increasing number of users, e.g. 3.3 dB with 6 users.
Research on the Management System of China’s Lottery Industry  [PDF]
Yan Peng, Wei Song, Duanyang Ren
Journal of Service Science and Management (JSSM) , 2015, DOI: 10.4236/jssm.2015.86093
Abstract: With over 20 years of development, China’s lottery industry has taken shape. But there are also some problems in the development, especially there are also some problems in the lottery management system. On the basis of analyzing the current situation of China’s lottery industry, using the methods such as literature data, and comparative analysis, this paper discusses the direction and objectives of the China’s lottery management system and reform, and puts forward suggestions to improve the lottery management system which provide guidance for the normative development of China’s lottery industry.
Research on the Benefits Allocation System of the Collaborative Innovation Center of China  [PDF]
Duanyang Ren, Wei Song, Guofeng Zhang
American Journal of Industrial and Business Management (AJIBM) , 2015, DOI: 10.4236/ajibm.2015.56037
Abstract: Collaborative innovation is a very important way for major scientific innovation; the core is adding knowledge value, involving firms, government, research institutions and other organizations. Collaborative innovation centers are important carriers for responding to the call of government’s collaborative strategy. However, during the collaborative process, the problem of intellectual property ownership and benefits allocation is faced by cooperative parties. So, we try to solve the benefits allocation problem by constructing a reasonable mechanism. It is the basis for the steady operation of collaborative innovation center and benefits distribution fairly. This paper constructs a model for benefits allocation after we review previous studies. It includes intellectual property participating and sharing, benefits allocation and performance evaluation and feedback. Besides, we use a case study to examine this model. Thus, we hope this model can help keep the stable development of collaborative innovation center and has certain significance in theoretical implications.
The Study of Agricultural Intellectual Property and Intelligent Agriculture Development Strategies in China  [PDF]
Duanyang Ren, Wei Song, Zhangzhi Ge
Journal of Service Science and Management (JSSM) , 2017, DOI: 10.4236/jssm.2017.103020
Abstract:
Agriculture is the basic industry of our country, which plays an important role in the food security and social stability of China. As the implementation of China’s strategy of innovation-driven development, the number of agricultural intellectual property application in China has been gradually increasing, the R & D ability of agricultural research has been improved. However, the work of agricultural technology transform has been not going well, lots of agricultural patents have been put on hold, which can’t create economic value and social benefits. Thus this paper explores that what affect the performance of technology transformation, and how allocate the resource reasonably to improve the benefits of technology transformation. We collected data from the statistics of universities’ technology, using the agricultural technology data to examine the relationship between funding input, researchers, technology transfer service people and some other resources and the performance, such as paper, patent and economic benefits. This paper concludes that the researchers and technology transfer service people play an important role in technology transformation, and different research types also lead to different outputs, which could give guidance for resource allocation and making policy.
Study on the Scientific and Technological Transformation Mechanism in Universities  [PDF]
Duanyang Ren, Wei Song, Yuan Ni
Open Journal of Social Sciences (JSS) , 2017, DOI: 10.4236/jss.2017.56023
Abstract: Innovation has become an important driving force for the social development. Scientific and technological transformation gradually plays an important role in economic development, which has great significance to promote the high-technology combined with productive forces. However, the organizations that undertake the innovation mission always don’t have too much awareness of technology transformation. The efficiency of technology transformation is not high. Some universities and research agencies don’t establish a reasonable and systematic transformation mechanism. Thus this paper points at the status quo and demands of university’s technology transformation activities, and explores each phase of technology achievements transformation, so that some other organizations can learn from technology transformation experience, which can also provide theoretical support for the transformation of scientific and technological achievements.
Research on Remote Health Monitoring System Based on Motion Sensor
基于运动传感器的远程健康监护系统研究

REN Wei,
任伟

计算机科学 , 2011,
Abstract: A remote health monitoring system based on IMU was presented. Acceleration data,magnetic data and angular data were collected by the llVIU tied up on human body. The raw measurement data was then processed by Kalman filter algorithm to produce a quaternion representation of orientation. Finally the BVH file containing the data captured above was transmitted to a remote PC of the doctor. The results show that the system is able to capture the motion data accurately and reproduce the movement of the human in real time.
Text, Genre and Multi-Genre
Guo-wei REN
Studies in Literature and Language , 2010,
Abstract: The essay mainly explores three concepts—text, genre, and multi-genre, and their mutual relationship. A text is a realization of a particular genre or a multi-genre. The generic or multi-generic structure potential is capable of generating countless number of texts. Key Words: Text; Genre; Multi-Genre; Mono-Generic Texts; Multi-Generic Texts
Prediction of the Magnetotoroidic Effect from Atomistic Simulations
Wei Ren,L. Bellaiche
Physics , 2011, DOI: 10.1103/PhysRevLett.107.127202
Abstract: An effective Hamiltonian technique is used to investigate the effect of applying curled electric fields on physical properties of stress-free BiFeO3 dots being under open-circuit electrical boundary conditions. It is discovered that such fields can lead to a control of not only the magnitude but also the direction of the magnetization. On a microscopic point of view, such control originates from the field-induced transformation or switching of electrical vortices and their couplings with oxygen octahedral tilts and magnetic dipoles. This control involves striking intermediate states, and constitutes a novel phenomenon that can be termed as "magnetotoroidic" effect.
Size effects in multiferroic BiFeO3 nanodots: A first-principles-based study
Wei Ren,L. Bellaiche
Physics , 2010, DOI: 10.1103/PhysRevB.82.113403
Abstract: An effective Hamiltonian scheme is developed to investigate structural and magnetic properties of BiFeO3 nanodots under short-circuit-like electrical boundary conditions. Various striking effects are discovered. Examples include (a) scaling laws involving the inverse of the dots' size for the magnetic and electric transition temperatures; (b) the washing out of some structural phases present in the bulk via size effects; (c) the possibility of tailoring the difference between the Neel and Curie temperatures, by playing with the size and electrical boundary conditions; and (d) an universal critical thickness of the order of 1.6 nm below which the dots do not possess any long-range ordering for the electrical and magnetic dipoles, as well as, for the oxygen octahedral tiltings.
Effective Hamiltonians for quasi-one-dimensional Fermi gases with spin-orbit coupling
Ren Zhang,Wei Zhang
Physics , 2013, DOI: 10.1103/PhysRevA.88.053605
Abstract: We derive one-dimensional effective Hamiltonians for spin-orbit coupled Fermi gases confined in quasi-one-dimensional trapping potentials. For energy regime around the two-body bound state energy, the effective Hamiltonian takes a two-channel form, where the population in transverse excited levels are described by dressed molecules in the closed channel. For energy regime slightly above the continuum threshold, the effective Hamiltonian takes a single-channel form, where low-energy physics is governed by the one-dimensional interacting strength determined by three-dimensional scattering length and transverse confinement. We further discuss the effect of spin-orbit coupling and effective Zeeman field on the position of confinement-induced resonances, and show that these resonances can be understood as Feshbach resonances between the threshold of the transverse ground state and the two-body bound state associated with the transverse excited states. We expect that the shift of confinement-induced resonances can be observed under present experimental technology at attainable temperatures.
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