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| 1 | Location characteristics and differentiation mechanism of logistics nodes and logistics enterprises based on points of interest (POI): A case study of Beijing显示文摘后勤节点和后勤企业是核心搬运人和后勤空间的组织上的题目,并且他们的地点特征和区别策略具有到优化城市的后勤的关键重要性空间模式和保证合理资源分配。从 2014 年 12 月基于 Tencent 联机地图站台,兴趣(夏威夷人用芋头做成的食品) 的 4396 个后勤点在中国北京被收集。由工业集中评估和核密度分析的方法,在北京的后勤的空间分发模式被探索,在类型差别,供应要求方面因素和地点选择行为之中的相互作用机制被澄清,并且在交通的联合影响下面的空间区别的内部机制,陆地租金和财产被揭示。下列结论在纸被得出。(1 ) 后勤企业和后勤节点在地点展出合作凝块和空间分离的特征,并且后勤活动显示“闹市区区域,郊区和城市远郊的区域的边缘的区域”的空间模式,它与后勤雇用空格有弱联合度。(2 ) 也就是,后勤停的公共后勤空间和后勤集中,在政府的指导下面被生产,并且由后勤分发组成的终端后勤空间集中服务因为特定的工业和终端用户被企业统治。在后勤空间的二个模式之间的位置上的区别是重要的。( 3 )在后勤的形成空间地点,政府能由重新计划改变交通条件运输线路和运费驻扎地点,并且由增加或减少控制陆地租金和不同区域的可获得性后勤的陆地使用,影响企业行为并且形成后勤空格和函数区别的不同类型。在比较,后勤企业通过财产分配的区别遇见服务目标的多样的要求支持分割的专门化并且形成后勤空间的目标区别。 | LI Guoqi JIN Fengjun CHEN Yu JIAO Jinjuan LIU Sijing | 2017 | Journal of Geographical Sciences2017，27，7： | 11 |
| 2 | FY-3 satellite Ultraviolet Total Ozone Unit显示文摘FY-3 satellites are Chinese second-generation polar orbit meteorological satellite series. Ultraviolet Total Ozone Unit (TOU) is one of the main payloads on FY-3 satellite and the first instrument for daily global coverage of total ozone monitoring in China. The main purpose of TOU is to measure the Earth backscatter ultraviolet radiation for retrieving daily global map of atmospheric ozone. TOU will provide the important parameters for environmental monitoring, climate forecasting and global climate changing research. At present, the in-orbit testing of TOU has accomplished and won a consummation, and it will be delivered to National Satellite Meteorological Center for the operational phase of the project. In this paper we introduce the instrument of TOU and its measuring principle, in general. We also analyze the recent working status of the instrument, including the sensitivity, measuring precision of solar irradiance, diffuser degradation and wavelength drift. The inversion results show that TOU can provide good global ozone maps, and a comparison with the OMI total ozone product shows that their RMS deviation is about 5%. It is indicated that the satisfied global distribution of total ozone can be obtained through TOU observational data and self-developed inversion method. | WANG YongMei WANG YingJian WANG WeiHe ZHANG ZhongMou LU JianGong FU LiPing JIANG Fang CHEN Ji WANG JiHong GUAN FengJun HUANG FuXiang ZHANG XingYing | 2010 | Chinese Science Bulletin2010，55，1： | 9 |
| 3 | Review of small aspheric glass lens molding technologies显示文摘 | Shaohui YIN Hongpeng JIA Guanhua ZHANG Fengjun CHEN Kejun ZHU | 2017 | Frontiers of Mechanical Engineering2017，12，1： | 9 |
| 4 | CKIP-1 regulates macrophage proliferation by inhibiting TRAF6-mediated Akt activation显示文摘巨噬细胞在开发,动态平衡,织物修理和免疫起枢轴的作用。巨噬细胞增长被刺激殖民地的因素(M-CSF ) 导致了 Akt 发信号的巨噬细胞支持;然而,这个过程怎么被终止,仍然保持不清楚。这里,我们作为巨噬细胞增长的一个新奇禁止者识别酷蛋白 kinase 2-interacting protein-1 (CKIP-1 ) 。在放松巨噬细胞, CKIP-1 是在由组成地活跃的 GSK3β 的丝氨酸 342 点的 phosphorylated;, Akt 的下游的目标。这 phosphorylation 触发 CKIP-1 的 polyubiquitination 和 proteasomal 降级。在 M-CSF 刺激之上, Akt 被 CSF-1R-PI3K 激活然后使 GSK3β 失去活性;,导致 CKIP-1 和 β 的稳定; -catenin 蛋白质。β -catenin 包括 cyclin D 和 c-Myc 支持增长基因的表示。CKIP-1 与 TRAF6,为连接 K63 的 ubiquitination 要求的 ubiquitin ligase 和 Akt 的血浆膜招募交往,并且终止调停 TRAF6 的 Akt 激活。由这个工具, CKIP-1 在 M-CSF 刺激以后在迟了的阶段明确地禁止巨噬细胞增长。而且, CKIP-1 缺乏在老鼠自发地开发的 vitro 和 CKIP-1 −/− 导致增加的增长和巨噬细胞的减少的 apoptosis 巨噬细胞主导的脾大和 myeloproliferation。一起,这些数据证明 CKIP-1 由禁止调停 TRAF6 的 Akt 激活在巨噬细胞动态平衡的规定起一个关键作用。 | Luo Zhang Yiwu Wang Fengjun Xiao Shaoxia Wang Guichun Xing Yang Li Xiushan Yin Kefeng Lu Rongfei Wei Jiao Fan Yuhan Chen Tao Li Ping Xie Lin Yuan Lei Song Lanzhi Ma Lujing Ding Fuchu He Lingqiang Zhang | 2014 | Cell Research2014，24，6： | 7 |
| 5 | Emerging miniaturized energy storage devices for microsystem applications:from design to integration显示文摘The rapid progress of micro/nanoelectronic systems and miniaturized portable devices has tremendously increased the urgent demands for miniaturized and integrated power supplies.Miniaturized energy storage devices(MESDs),with their excellent properties and additional intelligent functions,are considered to be the preferable energy supplies for uninterrupted powering of microsystems.In this review,we aim to provide a comprehensive overview of the background,fundamentals,device configurations,manufacturing processes,and typical applications of MESDs,including their recent advances.Particular attention is paid to advanced device configurations,such as two-dimensional(2D)stacked,2D planar interdigital,2D arbitrary-shaped,three-dimensional planar,and wire-shaped structures,and their corresponding manufacturing strategies,such as printing,scribing,and masking techniques.Additionally,recent developments in MESDs,including microbatteries and microsupercapacitors,as well as microhybrid metal ion capacitors,are systematically summarized.A series of on-chip microsystems,created by integrating functional MESDs,are also highlighted.Finally,the remaining challenges and future research scope on MESDs are discussed. | Huaizhi Liu Guanhua Zhang Xin Zheng Fengjun Chen Huigao Duan | 2020 | International Journal of Extreme Manufacturing2020，2，4： | 4 |
| 6 | ELID grinding characteristics of glass-ceramic materials显示文摘 | Shaohui Yin Hitoshi Ohmori Yutang Dai Yoshihiro Uehara Fengjun Chen Hengning Tang | 2008 | International Journal of Machine Tools and Manufacture2008，，3： | 2 |
| 7 | ndustrial eco-efficiency and its spatial-temporal differentiation in China显示文摘 | Wei YANG Fengjun JIN Chengjin WANG Chen LV | 2012 | Frontiers of Environmental Science & Engineering2012，6，4： | 2 |
| 8 | Neuro-regenerative imidazole-functionalized GelMA hydrogel loaded with hAMSC and SDF-1α promote stem cell differentiation and repair focal brain injury显示文摘Brain tissues that are severely damaged by traumatic brain injury(TBI)is hardly regenerated,which leads to a cavity or a repair with glial scarring.Stem-cell therapy is one viable option to treat TBI-caused brain tissue damage,whose use is,whereas,limited by the low survival rate and differentiation efficiency of stem cells.To approach this problem,we developed an injectable hydrogel using imidazole groups-modified gelatin methacrylate(GelMA-imid).In addition,polydopamine(PDA)nanoparticles were used as carrier for stromal-cell derived factor-1(SDF-1α).GelMA-imid hydrogel loaded with PDA@SDF-1αnanoparticles and human amniotic mesenchymal stromal cells(hAMSCs)were injected into the damaged area in an in-vivo cryogenic injury model in rats.The hydrogel had low module and its average pore size was 204.61±41.41 nm,which were suitable for the migration,proliferation and differentiation of stem cells.In-vitro cell scratch and differentiation assays showed that the imidazole groups and SDF-1αcould promote the migration of hAMSCs to injury site and their differentiation into nerve cells.The highest amount of nissl body was detected in the group of GelMA-imid/SDF-1α/hAMSCs hydrogel in the in-vivo model.Additionally,histological analysis showed that GelMA-imid/SDF-1α/hAMSCs hydrogel could facilitate the regeneration of regenerate endogenous nerve cells.In summary,the GelMA-imid/SDF-1α/hAMSCs hydrogel promoted homing and differentiation of hAMSCs into nerve cells,and showed great application potential for the physiological recovery of TBI. | Yantao Zheng Gang Wu Limei Chen Ying Zhang Yuwei Luo Yong Zheng Fengjun Hu Tymor Forouzanfar Haiyan Lin Bin Liu | 2021 | Bioactive Materials2021，6，3： | 2 |
| 9 | Profile error compensation in ultra-precision grinding of aspheric surfaces with on-machine measurement显示文摘 | CHEN Fengjun YIN Shaohui HUANG Han | 2010 | International Journal of Machine Tools and Manufacture2010，50，5： | 1 |
| 10 | Dynamic Task Offloading for Mobile Edge Computing with Hybrid Energy Supply显示文摘Mobile edge computing(MEC),as a new distributed computing model,satisfies the low energy consumption and low latency requirements of computation-intensive services.The task offloading of MEC has become an important research hotspot,as it solves the problems of insufficient computing capability and battery capacity of Internet of things(IoT)devices.This study investigates task offloading scheduling in a dynamic MEC system.By integrating energy harvesting technology into IoT devices,we propose a hybrid energy supply model.We jointly optimize local computing,offloading duration,and edge computing decisions to minimize system cost.On the basis of stochastic optimization theory,we design an online dynamic task offloading algorithm for MEC with a hybrid energy supply called DTOME.DTOME can make task offloading decisions by weighing system cost and queue stability.We quote dynamic programming theory to obtain the optimal task offloading strategy.Simulation results verify the effectiveness of DTOME,and show that DTOME entails lower system cost than two baseline task offloading strategies. | Ying Chen Fengjun Zhao Yangguang Lu Xin Chen | 2023 | Tsinghua Science and Technology2023，28，3： | 1 |
| 11 | A new virtual dynamic dentomaxillofaeial system for analyzing mandibular movement, occlusal contact, and TMJ condition 显示文摘 | Zhang Chi Chen Lei Zbang Fengjun | 2007 | Lecture Notes in Computer Science2007，4561，： | 1 |
| 12 | Profile Error Compensation in Ultra-precision Grinding of Aspheric Surfaces with On-machine Measurement 显示文摘 | CHEN Fengjun Y1N Shaohui HUANG H | 2010 | International Journal of Machine Tools & Manufacture(S0890-6955)2010，50，5： | 1 |
| 13 | Profile error compensation in ultra-precision grinding of aspheric surfaces with on-machine measurement显示文摘 | CHEN Fengjun YIN Shaohui HUANG Han | 2010 | International Journal of Machine Tools and Manufacture2010，50，5： | 1 |
| 14 | Profile error compensation in ultra-precision grinding of aspheric surfaces with on-machine measurement显示文摘 | CHEN Fengjun YIN Shaohui HUANG Han | 2010 | International Journal of Machine Tools and Manufacture2010，50，5： | 1 |
| 15 | Profile error compensation in ultra-precision grinding ofaspheric surfaces with on-machine measurement 显示文摘 | CHEN Fengjun Y1N Shaohui HUANG Han | 2010 | International Journal of Machine Tools & Manufacture(S0890-6955)2010，50，5： | 1 |
| 16 | A No- vel Orderly Arrangement Method Controlled by Magnetic Field for Diamond Abrasives of Grinding Wheel显示文摘 | Yin Shaohui Chen Fengjun Yu Jianwu | 2012 | Advance Material Research2012，497，： | 1 |
| 17 | Strength and mechanical behavior of short polypropylene fiber reinforced and cement stabilized clayey soil显示文摘 | Chaosheng Tang Bin Shi Wei Gao Fengjun Chen Yi Cai | 2006 | Geotextiles and Geomembranes2006，，3： | 1 |
| 18 | Catalyticdehydration of bioethanol to ethylene over Ti02/Al2 03 cata-lysts in microchannel reactors 显示文摘 | Chen Guangwen Li Shulian Jiao Fengjun | 2007 | Catalysis Today2007，125，12： | 1 |
| 19 | Fetch effect on the developmental process of aeolian sand transport in a wind tunnel显示文摘As the sand mass flux increases from zero at the leading edge of a saltating surface to the equilibrium mass flux at the critical fetch length,the wind flow is modified and then the relative contribution of aerodynamic and bombardment entrainment is changed.In the end the velocity,trajectory and mass flux profile will vary simultaneously.But how the transportation of different sand size groups varies with fetch distance is still unclear.Wind tunnel experiments were conducted to investigate the fetch effect on mass flux and its distribution with height of the total sand and each size group in transportation.The mass flux was measured at six fetch length locations(0.5,1.2,1.9,2.6,3.4 and 4.1 m)and at three free-stream wind velocities(8.8,12.2 and 14.5 m/s).The results reveal that the total mass flux and the mass flux of each size group with height can be expressed by q=aexp(–bh),where q is the sand mass flux at height h,and a and b are regression coefficients.The coefficient b represents the relative decay rate.Both the relative decay rates of total mass flux and each size group are independent of fetch length after a quick decay over a short fetch.This is much shorter than that of mass flux.The equilibrium of the relative decay rate cannot be regarded as an equilibrium mass flux profile for aeolian sand transport.The mass fluxes of 176.0,209.3 and 148.0μm size groups increase more quickly than that of other size groups,which indicates strong size-selection of grains exists along the fetch length.The maximal size group in mass flux(176.0μm)is smaller than the maximal size group of the bed grains(209.3μm).The relative contribution of each size group to the total mass flux is not monotonically decreasing with grain size due to the lift-off of some small grains being reduced due to the protection by large grains.The results indicate that there are complex interactions among different size groups in the developmental process of aeolian sand transport and more attention should be focused on the fetch effect because it has different influences on the total mass flux,the mass flux profile and its relative decay rate. | CHEN Zongyan XIAO Fengjun DONG Zhibao | 2020 | Journal of Arid Land2020，12，3： | 1 |
| 20 | Catalytic dehydration of bioethanol to ethylene over TiO2/ γ-Al2 O3 catalysts in microchannel reactors 显示文摘 | Chen Guangwen Li Shulian Jiao Fengjun Yuan Quan | 2007 | Catalysis Today2007，125，12： | 1 |
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