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| 1 | Screening for gastric cancer in China:Advances,challenges and visions显示文摘Gastric cancer(GC)is one of the major cancers in China and all over the world.Most GCs are diagnosed at an advanced stage with unfavorable prognosis.Along with some other countries,China has developed the government-funded national screening programs for GC and other major cancers.GC screening has been shown to effectively decrease the incidence of and mortality from GC in countries adopting nationwide screening programs(Japan and Korea)and in studies based on selected Chinese populations.The screening of GC relies mostly on gastroendoscopy,the accuracy,reliability and safety of which have been indicated by previous studies.However,considering its invasive screening approach,requirements on skilled endoscopists and pathologists,and a high cost,developing noninvasive methods to amend endoscopic screening would be highly needed.Numerous studies have examined biomarkers for GC screening and the combination of biomarkers involving pepsinogen,gastrin,and Helicobacter pylori antibodies has been proposed for risk stratification,seeking to narrow down the high-risk populations for further endoscopy.Despite all the achievements of endoscopic screening,evidence on appropriate screening age,intervals for repeated screening,novel biomarkers promoting precision prevention,and health economics need to be accumulated to inform policymakers on endoscopic screening in China.With the guide of Health China 2030 Planning Outline,we have golden opportunities to promote prevention and control of GC.In this review,we summarize the characteristics of screening programs in China and other East Asian countries and introduce the past and current approaches and strategies for GC screening,aiming for featuring the latest advances and key challenges,and illustrating future visions of GC screening. | Xiaohan Fan Xiangxiang Qin Yang Zhang Zhexuan Li Tong Zhou Jingying Zhang Weicheng You Wenqing Li Kaifeng Pan | 2021 | Chinese Journal of Cancer Research2021，33，2： | 21 |
| 2 | A cellular automata evacuation model considering friction and repulsion显示文摘There exist interactions among pedestrians and between pedestrian and environment in evacuation. These interactions include attraction, repulsion and friction that play key roles in human evacuation behaviors, speed and efficiency. Most former evacuation models focus on the attraction force, while repulsion and friction are not well modeled. As a kind of multi-particle self-driven model, the social force model introduced in recent years can represent those three forces but with low simulation efficiency because it is a continuous model with complex rules. Discrete models such as the cellular automata model and the lattice gas model have simple rules and high simulation efficiency, but are not quite suitable for interactions’ simulation. In this paper, a new cellular automata model based on traditional models is introduced in which repulsion and friction are modeled quantitatively. It is indicated that the model can simulate some basic behaviors, e.g. arching and the “faster-is-slower” phenomenon, in evacuation as multi-particle self-driven models, but with high efficiency as the normal cellular automata model and the lattice gas model. | SONG Weiguo YU Yanfei FAN Weicheng Zhang Heping | 2005 | Science China(Technological Sciences)2005，48，4： | 19 |
| 3 | Cellular automata pedestrian movement model considering human behavior显示文摘The pedestrian movement is more complex than vehicular flow for the reason that people are more flexible and intelligent than car. Without the limit of 搇anes?pedestrian movement is loose and free. Furthermore, they are easily affected by other walkers as well as the environ-ment around. In this paper some special technique is intro-duced considering human behavior to make the rules more reasonable. By simulating the two-dimension pedestrian movement, the phase transition phenomena of pedestrian movement, including the up walkers moving from the bottom to the upper boundary and the right walkers moving from the left to the right boundary, are presented. Studying on the effect of the system size on the critical density shows that the critical density is independent of the system size in the scope studied in this paper. | YANG Lizhong, FANG Weifeng, LI Jian, HUANG Rui & FAN Weicheng State Key Laboratory of Fire Science, University of Science and Tech-nology of China, Hefei 230026, China Correspondence should be addressed to Yang Lizhong (e-mail:zxd@ustc. edu.cn) | 2003 | Chinese Science Bulletin2003，48，16： | 16 |
| 4 | Self-organized criticality of forest fires in China显示文摘Self-organized criticality(SOC) of forest fires in China from 1950 to 1989 is studied. The stability, scale-invariant character of SOC and external effects on SOC of forest fires in China are analyzed in detail. Forest-fire cellular automata model is a typical model for the research of SOC. Based on the traditional forest-fire model, an improved model, in which effects of tree species, meteorological conditions and human efforts on forest fires are considered, is introduced. Actual forest fire data in China are compared with simulation results of the two models. It is shown that forest fire data in China have SOC behavior and simulation results of the improved model accord better with actual forest fire data than those of the traditional model. | Song Weiguo Fan Weicheng Wang Binghong | 2001 | Chinese Science Bulletin2001，46，13： | 15 |
| 5 | Progress in research and application of water mist fire suppression technology显示文摘Water mist technology in fire suppression has been a subject of many investigations over the last decade. This paper introduces the concept of water mist technology and discusses its extinguishment mechanisms in comparison with other fire suppression systems briefly. A survey is made on the recent applications of water mist for (1) Class B spray and pool fires in machinery spaces, gas turbine enclosures, combat vehicles, and flammable liquid storage rooms; (2) Class A fires in residential occupancies, marine accommoda-tions and public spaces, heritage buildings and libraries; (3) Class C fires in electronic equipment and computer rooms; and (4) the fires in aircraft onboard cabin and cargo com-partments. The paper proceeds to review some new applica-tions of water mist for the Class K fires in commercial cook rooms. Use of water mist for total-ship protection as well as the fire protection of heavy goods vehicle shuttle trains is also investigated. At last, the up-to-date development of corresponding test to evaluate the capabilities and limitaions of water mist is discussed. | LIU Jianghong, LIAO Guangxuan, LI Peide, FAN Weicheng & LU Qiang State Key Laboratory of fire Science, University of Science and Tech-nology of China, Hefei 230026, China Correspondence should be addressed to Liu Jianghong (e-mail: ljh@ ustc.edu.cn) | 2003 | Chinese Science Bulletin2003，48，8： | 15 |
| 6 | Influences of finite-size effects on the self-organized critical-ity of forest-fire model显示文摘The influences of finite-size effects on the self-organized criticality (SOC) of the traditional forest-fire model are investigated by means of a new method. The forest size is originally set to a value much greater than the correla-tion length of the forest. Finite-size effects are then studied by equally dividing the forest into more and more separate subsystems on condition that the forest size, igniting prob-ability and planting probability are invariant. A new phe-nomenon, i.e. the finite-size effects with one-side frequency peak, is observed. The boundary between two neighboring subsystems can be regarded as a firebreak. The concept of ’separation ability’ is introduced to represent the probability for the firebreak to block off the fire successfully. Restrain-ing effects of separation ability on finite-size effects are ana-lyzed. Finite-size effects and separation ability, as well as their relations are found to have practical importance to the actual forest-fire protection. | Weiguo Song Weicheng Fan Binghong Wang | 2002 | Chinese Science Bulletin2002，47，3： | 9 |
| 7 | A microcosmic discrete occupant evacuation model based on individual characteristics显示文摘The research of occupant evacuation in an emergency is of great benefit to building design and evacuation guidance. In this paper a microcosmic discrete evacuation model based on Cellular Automata (CA) is presented, in which the occupants?individual characteristics are considered. Thus, our model has given a description of evacuation route choice with influencing factors, including: individual knowledge of the building, individual realization of the emergency development, and the attractive and repulsive force between occupants. This model differs somewhat from other models in the attention to the associative and separate effect of influencing factors, based on occupants behaviors. In addition, the model could reveal the phenomenon of escape in fire, as those simulations involving a fire condition have shown. | YANG Lizhong LI Jian ZHAO Daoliang FANG Weifeng FAN Weicheng | 2004 | Science China(Technological Sciences)2004，47，5： | 7 |
| 8 | New mass loss kinetic model for thermal decomposition of biomass显示文摘Based on non-isothermal experimental results for eight Chinese biomass species, a new kinetic model, named as the 損seudo bi-component separate-stage model (PBSM)? is developed in this note to describe the mass loss behavior of biomass thermal decomposition. This model gains an advantage over the commonly used 損seudo single-component overall model (PSOM)?and 損seudo multi-component overall model (PMOM)? By means of integral analysis it is indicated that the new model is suitable to describe the mass loss kinetics of wood and leaf samples under relatively low heating rates (e.g. 10℃/min, used in this work). | LIU Naian FAN Weicheng R.Dobashi LIN Qizhao | 2001 | Chinese Science Bulletin2001，46，16： | 6 |
| 9 | A Stiffness Variable Passive Compliance Device with Reconfigurable Elastic Inner Skeleton and Origami Shell显示文摘Devices with variable stiffness are drawing more and more attention with the growing interests of human-robot interaction,wearable robotics,rehabilitation robotics,etc.In this paper,the authors report on the design,analysis and experiments of a stiffness variable passive compliant device whose structure is a combination of a reconfigurable elastic inner skeleton and an origami shell.The main concept of the reconfigurable skeleton is to have two elastic trapezoid four-bar linkages arranged in orthogonal.The stiffness variation generates from the passive deflection of the elastic limbs and is realized by actively switching the arrangement of the leaf springs and the passive joints in a fast,simple and straightforward manner.The kinetostatics and the compliance of the device are analyzed based on an efficient approach to the large deflection problem of the elastic links.A prototype is fabricated to conduct experiments for the assessment of the proposed concept.The results show that the prototype possesses relatively low stiffness under the compliant status and high stiffness under the stiff status with a status switching speed around 80 ms. | Zhuang Zhang Genliang Chen Weicheng Fan Wei Yan Lingyu Kong Hao Wang | 2020 | Chinese Journal of Mechanical Engineering2020，33，5： | 4 |
| 10 | Catastrophe mechanism and classification of discontinuity behavior in thermal science (Ⅰ)——Fold catastrophe显示文摘The mechanism of discontinuity behavior has important significance in the study of thermal science, such as fire, combustion, explosion and heat transfer. This sort of discontinuity behavior and the catastrophe caused by system nonlinearity may be equivalently classified according to the catastrophe model promulgated by catastrophe theory. Under the conditions of uniform temperature and thermal isolation, the self-ignition behavior of a Semenov System can be viewed as a result of the fold catastrophe of the system. | XIE Zhikang, FAN Weicheng & WANG Qing’anState Key Laboratory of Fire Science, University of Science & Technology of China, Hefei 230026, China | 2000 | Chinese Science Bulletin2000，45，19： | 3 |
| 11 | Numerical simulation of fire development in a single compartment based on cone calorimeter experiments显示文摘The burning characteristics of several kinds of wood and polyurethane materials have been studied using cone calorimeter (CONE2A). A new and simple ignition criterion, heat release rate model and mass loss rate model are proposed based on experiments. Combined with these models, the zone-model of fire can be used to predict fire development in a single compartment according to the species of combustibles, their quantities and distribution. Calculated results show that this method is simple and feasible. | JI Jingwei, CHENG Yuanping, YANG Lizhong and FAN Weicheng( State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026, China College of Energy Science and Engineering, China University of Mining and Technology, Xuzhou 221008, China) | 2002 | Progress in Natural Science:Materials International2002，12，5： | 3 |
| 12 | Detonation Reactivity of Alkane and Alkene-air Mixtures显示文摘 | Wang Qingan Fan Weicheng | 2000 | Combustion and Flame2000，120，12： | 1 |
| 13 | A Study on Detonation Safety of Some Hydrocarbon-air Mixtures显示文摘 | Fan Weicheng Zhou Xiaodong | 2000 | Process Safety Progress2000，19，2： | 1 |
| 14 | Prepara- tion and combustion properties of flame retardant nylon 6/montmorillonite nanocomposite 显示文摘 | Hu Yuan Wang Shaofeng Ling Zhihua Zhuang Yonglong Chen Zayao Fan Weicheng | 2003 | Mac- romolecular Materials and Engineering2003，288，3： | 1 |
| 15 | Fire retardant synergism between melamine and triphenyl phosphate in poly(butylene terephthalate) 显示文摘 | Junfeng Xiao Yuan Hu Ling Yang Yibing Cai Lei Song Zuyao Chen Weicheng Fan | 2006 | Polymer Degradation and Stability2006，91，9： | 1 |
| 16 | A cellular automaton evacuation model based on mobile robot's behaviors显示文摘The research of evacuation in some emergencies, e.g. fire, is of great benefit to reducing the injuries of persons. In this paper, a cellular automaton evacuation model based on mobile robot's behaviors is presented. Each person is treated as an intelligent mobile robot, and motor schemas, including move-to-goal, avoid-obstacle, swirl-obstacle and nervous-motion, drive persons to interact with their environment. The motor schemas are combined with cellular automaton theory, and an evacuation model is built. Evacuation simulation of persons with different move velocities shows that the pre-sented model can predict accurately the evacuation phenomena in some emergencies. | WENG WenGuo YUAN HongYong FAN WeiCheng | 2007 | Chinese Science Bulletin2007，52，5： | 1 |
| 17 | Safety Evaluation of Engineering and Construction Projects in China显示文摘 | Zhong Maohua Fan Weicheng Liu Tiemin | 2003 | Joumal of Loss Prevention in the Process Industries2003，16，3： | 1 |
| 18 | The relati onship between smoke concentration some distance down the hallway and the opening of the room of fire origin显示文摘 | Fang Tingyong Yang Li zhong Huang Rui Feng Wenxing Zhai Guanglong Fan Weicheng | 2003 | Journal of Fire Sciences2003，21，4： | 1 |
| 19 | Modeling occupant evacuation using cellular automata-effect of human behavior and building characteristic on evacuation 显示文摘 | YANG LIZHONG FANG WEIFENG FAN WEICHENG | 2003 | Journal of Fire Sciences2003，21，3： | 1 |
| 20 | Effects of PE-g-DBM as a Compatiblizer on Mechanical Properties and Crystallization Behaviors of Magnesium Hydroxide-based LLDPE Blends显示文摘 | Qu Baojun Fan Weicheng Hu Yuan Shen Xiaofeng | 2002 | Polym Degrad Stab2002，76，： | 1 |
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