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| 1 | Cloud Storage Security Assessment Through Equilibrium Analysis显示文摘With ever greater amounts of data stored in cloud servers, data security and privacy issues have become increasingly important. Public cloud storage providers are semi-trustworthy because they may not have adequate security mechanisms to protect user data from being stolen or misused. Therefore, it is crucial for cloud users to evaluate the security of cloud storage providers. However, existing security assessment methods mainly focus on external security risks without considering the trustworthiness of cloud providers. In addition, the widely used thirdparty mediators are assumed to be trusted and we are not aware of any work that considers the security of these mediators. This study fills these gaps by assessing the security of public cloud storage providers and third-party mediators through equilibrium analysis. More specifically, we conduct evaluations on a series of game models between public cloud storage providers and users to thoroughly analyze the security of different service scenarios.Using our proposed security assessment, users can determine the risk of whether their privacy data is likely to be hacked by the cloud service providers;the cloud service providers can also decide on strategies to make their services more trustworthy. An experimental study of 32 users verified our method and indicated its potential for real service improvement. | Yuzhao Wu Yongqiang Lyu Yuanchun Shi | 2019 | Tsinghua Science and Technology2019，24，6： | 4 |
| 2 | Dual relations in physical and cyber space显示文摘With the rapid development of computer, communication, and sensing technology, our living space has been transformed from physical space into a space shared by physical space and cyberspace. In the light of this fact and based on analyzing the char- acteristics of physical and cyberspace, respectively, this paper proposed that there are dual relations be- tween physical space and cyberspace. Establishing dual relations is realized in the following two processes: the process of information extraction, analysis and structurization from physical space to cyberspace and the process of providing the information services from cyberspace to physical space by means of inferring the intention, state and demand of users, as well. HCI (Human Cyberspace Interaction) in dual space means to establish the dual relations, which embodied the human centered HCI, i.e. the interaction is carried out in the way accustomed to users and without distract- ing their attention. | XU Guangyou TAO Linmi ZHANG David SHI Yuanchun | 2006 | Chinese Science Bulletin2006，51，1： | 4 |
| 3 | ON THE EXPLOITATION AND SUSTAINED UTILIZATION OF REGIONAL RESOURCES, TAKING THE DEVELOPMENT PROGRAM TO TAME THE HUANGHUAIHAI PLAIN AS AN EXAMPLE显示文摘The Huanghuaihai Plain is noted for its vast landmass, complex natural conditions and development problems to overcome. This article lists the achievements and experiences obtained by Chinese agrotechnicians during the past two decades in the comprehensive reclamation of the Plain, and based on these, it explores the potential of the Plain to make up the increasingly scarce local resources by S&T means. | Shi Yuanchun(Beijing University of Agriculture) | 1995 | Bulletin of the Chinese Academy of Sciences1995，9，3： | 2 |
| 4 | Gesture-based target acquisition in virtual and augmented reality显示文摘Background Gesture is a basic interaction channel that is frequently used by humans to communicate in daily life. In this paper, we explore to use gesture-based approaches for target acquisition in virtual and augmented reality. A typical process of gesture-based target acquisition is: when a user intends to acquire a target, she performs a gesture with her hands, head or other parts of the body, the computer senses and recognizes the gesture and infers the most possible target. Methods We build mental model and behavior model of the user to study two key parts of the interaction process. Mental model describes how user thinks up a gesture for acquiring a target, and can be the intuitive mapping between gestures and targets. Behavior model describes how user moves the body parts to perform the gestures, and the relationship between the gesture that user intends to perform and signals that computer senses. Results In this paper, we present and discuss three pieces of research that focus on the mental model and behavior model of gesture-based target acquisition in VR and AR. Conclusions We show that leveraging these two models, interaction experience and performance can be improved in VR and AR environments. | Yukang YAN Xin YI Chun YU Yuanchun SHI | 2019 | Virtual Reality & Intelligent Hardware2019，1，3： | 2 |
| 5 | China’s bioenergy industry development roadmap显示文摘Positive development of renewable energy, saving and substitution of fossil energy, promotion of the energy structure adjustment are the inevitable strategy choices of China’s sustainable development. This paper discussed the China’s bioenergy resources status, development targets and technology development roadmaps. China has 136.140 million hm2 of marginal land, which distribute mainly in western and northern regions. There are 1 billion t of crop residues and forestry waste annually, and 300 million t can be used to produce different kinds of bioenergies. And organic waste and manure can generate 50 billion m3 of biogas. The discussed development target indicated that it can construct a biomass oilfield with the capacity of 100 million t/year and reduce 200 million t of CO_2 emission by 2020. The bioenergy technology development roadmap indicated that the bioethanol mainly uses non grain starch and hemicellulose products as raw materials in the near-term (2006-2010). The biodiesel technology will focus on the advanced production technology, FT diesel, liquefaction of biomass and raw material production technology. | Shi Yuanchun Li Shizhong Liu Xuejun | 2009 | Engineering Sciences2009，7，2： | 2 |
| 6 | Modeling and simulation of dynamic carbonate deposition in a loess-paleosol sequence显示文摘A compartment model of dynamic deposition processes has been developed and testedin the Potou loess section of China. There are four components in the model : carbonate input ofeolian dust, carbonate output of erosion, carbonate chemical equilibrium and soil water balance. Aclimate stochastic model software (CLIMAK) generates the daily weather data. The processes ofeolian dust deposition, erosion, and pedogenesis simulate the complex process of carbonatedeposition in a loess-paleosol sequence. We consider both climatic change and soil-forming factors.The results indicate that since the Late Pleistocene in Potou section, the mean carbonate fluxesfrom precipitation, eolian dust and erosion are 0.14g/cm^2/kg, 1.45g/cm^2/ka and 0.23g/cm^2/karespectively. Of this, 91.2% of the carbonate input is from eolian dust. | LI Xuyong LI Baoguo LU Huayi DUAN Jiannan SHI Yuanchun Commission for Integrated Survey of Natural Resources, CAS, Beijing 100101, China Department of Soil and Water, China Agricultural University, Beijing 100094. China Xian Laboratory for Loess and Quaternary Research, CAS, Xian 710054, China, Institude of the Loess Plateau. Shanxi University, Taiyuan 030000, China | 1999 | Chinese Science Bulletin1999，44，S1： | 1 |
| 7 | A Soil Morphological Index for Paleosol Research显示文摘We developed a soil morphological index to quantitatively measure the degree ofpaleosol development. For its development, this index combined paleopedogenic features with tensoil macro- and micro-morphological properties from morphological descriptions of Potou and JiuZhoutai loess sections in the Loess Plateau of China. These ten properties are: rubification (colorhue and chroma), total texture (texture type, stickiness and plasticity), melanization (color value),microstructure, fine material (<0.01 mm), primary carbonate, biotite, fe(hydr)oxides, secondarycarbonate (micromorphology) and illuvial clay. Future study may reject some of these propertiesand add others. The index works well with the loess-paleosol sequences. The soil morphologicalindex successfully identifies paleosols and weak-paleosols. | LI Xuyong LI Baoguo GUO Zhengtang ZHAO Chengyi SHI Yuanchun 1 Commission for Integrated Survey of Natural Resources, CAS, Beijing 100101, China. 2 Department of Soil and Water, China Agricultural University, Beijing 100094, China 3 Institute of Geology, CAS, Beijing 100029, China 4 Institute of Xinjiang Ecology and Geography, CAS, Urumqi 830011. China | 1999 | Chinese Science Bulletin1999，44，S1： | 1 |
| 8 | The Design and Implementation of the Cicada Wireless Sensor Network In- door Localization System显示文摘 | Wenfeng Jiang Yu Chen Yuanchun Shi | 2006 | Proceedings of the 16th Interna- tional Conference on Artificial Reality and Telexistence-- Workshops(ICAT''06) Los Alamitos USA IEEE Computer Society Press2006，2006，： | 1 |
| 9 | The smart classroom: merging technologies for seamless tele-education 显示文摘 | SHI Yuanchun XIE Weikai XU Guangyou | 2003 | Pervasive Computing2003，2，2： | 1 |
| 10 | The smart classroom:merging technologies for seamless teleeducation显示文摘 | Xie Weikai Xu Guangyou | 2003 | Pervasive Computing2003，2，2： | 1 |
| 11 | The smart classroom:merging technologies for seamless tele-education显示文摘 | SHI Yuanchun XIE Weikai XU Guangyou | 2003 | Pervasive Computing2003，2，2： | 1 |
| 12 | Smart Classroom an Intelligent Environment for Distant Education显示文摘 | Weikai Xie Yuanchun Shi Guanyou Xu | 2002 | ICMI2002，，1： | 1 |
| 13 | A Core Model Supporting Location-Aware Computing in Smart Classroom 显示文摘 | Hongliang Gu Yuanchun Shi Guangyou Xu Yu Chen | 2005 | ICWL2005，，1： | 1 |
| 14 | Smart Remote Classroom: Creating a Revolutionary Real-Time Interactive Distance Learning System显示文摘 | Yuanchun Shi Weikai Xie Guangyou Xu | 2002 | ICWL2002，，1： | 1 |
| 15 | Smart Classroom - an Intelligent Environment for Tele-education显示文摘 | Weikai Xie Yuanchun Shi Guanyou Xu | 2001 | ln: Proceedings of the 2nd IEEE Pacific- Rin Conference on Multimedia Beijing Chian2001，2001，： | 1 |
| 16 | The smart classroom: Merging technologies for seamless tele-education 显示文摘 | Shi Yuanchun Xie Weikai Xu Guangyou | 2003 | IEEE Pervasive Computing2003，2，2： | 1 |
| 17 | A Core Model Supporting Location-Aware Computing in Smart Classroom显示文摘 | Hongliang Gu Yuanchun Shi Guangyou Xu Yu Chen | 2005 | ICWL2005，，： | 1 |
| 18 | Smart Classroom - an Intelligent Environment for Distant Education 显示文摘 | Weikai Xie Yuanchun Shi Guanyou Xu | 2002 | ICMI2002，，： | 1 |
| 19 | The smart classroom:merging technologies for seamless tele-education显示文摘 | Shi Yuanchun Xie Weikai Xu Guangyou | 2003 | IEEE Pervasive Computing2003，2，2： | 1 |
| 20 | Smart Remote Classroom: Creating a Revolutionary Real-Time Interactive Distance Learning System显示文摘 | Yuanchun Shi Weikai Xie Guangyou Xu | 2002 | ICWL2002，，： | 1 |
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