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1Adsorption of thorium(IV) on magnetic multi-walled carbon nanotubes显示文摘The influences of pH, contact time, solid-liquid ratio, temperature and C60(C(COOH)2)n on Th(IV) adsorption onto the magnetic multi-walled carbon nanotubes(MMWCNTs) were studied by batch technique. The dynamic process showed that the adsorption of Th(IV) onto MMWCNTs could reach equilibrium in 40 h and matched the pseudo-second-order kinetics model. The adsorption of Th(IV) onto MMWCNTs was significantly dependent on pH values, the adsorption ratio increased markedly at pH 3.0–5.0, and then maintained a steady state as pH values increased. At low pH, different C60(C(COOH)2)n content could enhance the adsorption content of Th(IV) onto MMWCNTs, but restrained it at higher pH. Through simulating the adsorption isotherms by Langmuir, Freundlich and Dubini-Radushkevich models, it could be seen respectively that the adsorption pattern of Th(IV) onto MMWCNTs was mainly surface complexation, and that the adsorption process was endothermic and irreversible.LIU Peng QI Wei DU YaoFang LI Zhan WANG Jing BI JuanJuan WU WangSuo 2014Science China Chemistry2014,57,11:7
2Structural insights into Ca^2+-activated long-range allosteric channel gating of RyR1显示文摘Ryanodine 受体(RyRs ) 是有分子的质量的巨大的离子隧道的一个班超过 2.2 大 -- 道尔顿。这些隧道调停钙在许多房间发信号。因为超过 80% RyR 蛋白质被合拢进细胞质的集会,留下的残余形成 transmembrane 领域, RyR 隧道的激活和规定发生通过,这被假设了一迄今为止 uncharacterized 远程的 allosteric 机制。这里,我们报导 Ca 2+-activated 的描述由 cryo 电子的开状态的 RyR1 结构显微镜学。结构有 4.9 Å 的一个全面决定;并且 4.2 Å 的一个决定;为核心区域。与以前坚定的 apo/closed-state 结构比较,我们在 Ca 2+ 激活之上观察了隧道的远程的 allosteric gating。深入的结构的分析阐明了新奇隧道门机制和 RyR1 的新奇离子选择机制。我们的工作不仅提供结构的卓见进隧道 gating 和 RyRs 的规定的分子的机制,而且为 six-transmembrane-helix 阳离子隧道家庭为隧道门和离子选择机制使结构的基础清楚些。Risheng Wei Xue Wang Yan Zhang Saptarshi Mukherjee Lei Zhang Qiang Chen Xinrui Huang Shan Jing Congcong Liu Shuang Li Guangyu Wang Yaofang Xu Sujie Zhu Alan J Williams Fei Sun Chang-Cheng Yin 2016Cell Research2016,26,9:3
3Delay-Differentiated Scheduling in Optical Packet Switches for Cloud Data Centers显示文摘We consider differentiated timecritical task scheduling in a N×N input queued optical packet s w itch to ens ure 100% throughput and meet different delay requirements among various modules of data center. Existing schemes either consider slot-by-slot scheduling with queue depth serving as the delay metric or assume that each input-output connection has the same delay bound in the batch scheduling mode. The former scheme neglects the effect of reconfiguration overhead, which may result in crippled system performance, while the latter cannot satisfy users' differentiated Quality of Service(Qo S) requirements. To make up these deficiencies, we propose a new batch scheduling scheme to meet the various portto-port delay requirements in a best-effort manner. Moreover, a speedup is considered to compensate for both the reconfiguration overhead and the unavoidable slots wastage in the switch fabric. With traffic matrix and delay constraint matrix given, this paper proposes two heuristic algorithms Stringent Delay First(SDF) and m-order SDF(m-SDF) to realize the 100% packet switching, while maximizing the delay constraints satisfaction ratio. The performance of our scheme is verified by extensive numerical simulations.LI Yaofang XIAO Jie WU Bin WEN Hong YU Hongfang YANG Shu XIN Shanshan GUO Jianing 2015China Communications2015,12,8:2
4Fast elimination of malaria by infectious source eradication with artemisinin-based compound显示文摘Malaria is one of the three most hazardous infectious diseases(HIV/AIDS,Malaria and tuberculosis)in the world.Since 1960,falciparum malaria gradually became resistant to original antimalarial drugs such as Chloroquine and Fansidar.With the global spread of drug-resistant falciparum malaria,morbidity and mortality increased greatly.InLiling Feng Xiaoli Luo Yaofang Zhou Xingbo Guo Guoqiao Li 2016Science China(Life Sciences)2016,59,1:2
5Research on Loading Test of Double-curved Arch Bridge显示文摘Zhimeng Shi Yonggang Gou Fengnian He Feng Yang Yaofang Wan 旺新 游宇 Shengquan Liang 2013Civil Engineering and Technology2013,,3:1
6Identification of selenium compounds using HPLC-ICPMS and nano-ESI-MS in selenium-enriched rice via foliar application显示文摘FANG Yong HU Qiuhui ZHANG Yaofang 200924(12): 1657-16642009,24,12:1
7The urban adaptation and adaptation process of urban migrant children: A qualitative study显示文摘本研究采用质性方法对中国流动儿童城市适应状况及过程进行了探讨。通过对21名流动儿童的深度访谈发现:受访流动儿童城市适应状况较好;流动儿童城市适应过程呈现三种类型:U型、J型、水平线型;长期习得的外显行为、内隐观念、人文环境和学习成绩是几个较难适应的维度。在对三种适应过程比较后,提出了流动儿童的城市适应过程理论:流动儿童在城市适应过程中会经历四个发展阶段:兴奋与好奇、震惊与抗拒、探索与顺应、整合与融入。LIU Yang FANG Xiaoyi CAI Rong WU Yang ZHANG Yaofang 2009Frontiers of Education in China2009,4,3:1
8EEG activities in the orbitofrontal cortex and dorsolateral prefrontal cortex during the development of morphine dependence, tolerance and withdrawal in rhesus monkeys 显示文摘NING L I U YANCHENG L I U YAOFANG FAN 2005Brain Research2005,1053,:1
9Study on the synthesis of sodium N-methylglycinate 显示文摘YaoFang(姚方) XuTianyou(徐天有) 2003Advances Science and Technology2003,17,3:1
10CNT-Modified MIL-88(NH_(2))-Fe for Enhancing DNA-Regulated Peroxidase-Like Activity显示文摘Over the past few decades,the enzyme-mimicking activity of metal-organic frameworks(MOFs)accompanied with struc-tural characteristics has aroused much attention.However,pure MOFs have low affinity with DNA.Here,iron-based MOFs with acidized carbon nanotubes(CNTs)via a simple hydrothermal process have been synthesized,named as MIL-88(NH_(2))-Fe@CNTs.CNTs can enhance the affinity between MOF and DNA,achieving flexible regulation of their catalytic activity benefiting from the strongπ−πstacking between CNTs and DNA.Meanwhile,in comparison with conventional iron-based MOFs,the addition of CNTs,which contributes to the acceleration of electron transfer,endowing as-prepared nanocomposites remarkably enhanced peroxidase-like activity to achieve an ultrasensitive detection of H_(2)O_(2) with the LOD of 17.64μg/L.Notably,the as-prepared nanocomposites with adsorbed DNA displayed excellent affinity towards both TMB(3,3′,5,5′-tetramethylbenzidine)substrates and H_(2)O_(2) as well as high catalytic velocity.On the basis of their switchable peroxidase-like activity regulated by different length or sequence of ssDNA,it is believed that our-prepared MOF-based nanomaterials would be promising for fabricating versatile and sensitive label-free colorimetric assays for diverse targets.Shihao Sun Yaofang Fan Jiaoyang Du Zhilian Song Huimin Zhao 2019Journal of Analysis and Testing2019,3,3:1
11Critical Relation Path Aggregation-Based Industrial Control Component Exploitable Vulnerability Reasoning显示文摘With the growing discovery of exposed vulnerabilities in the Industrial Control Components(ICCs),identification of the exploitable ones is urgent for Industrial Control System(ICS)administrators to proactively forecast potential threats.However,it is not a trivial task due to the complexity of the multi-source heterogeneous data and the lack of automatic analysis methods.To address these challenges,we propose an exploitability reasoning method based on the ICC-Vulnerability Knowledge Graph(KG)in which relation paths contain abundant potential evidence to support the reasoning.The reasoning task in this work refers to determining whether a specific relation is valid between an attacker entity and a possible exploitable vulnerability entity with the help of a collective of the critical paths.The proposed method consists of three primary building blocks:KG construction,relation path representation,and query relation reasoning.A security-oriented ontology combines exploit modeling,which provides a guideline for the integration of the scattered knowledge while constructing the KG.We emphasize the role of the aggregation of the attention mechanism in representation learning and ultimate reasoning.In order to acquire a high-quality representation,the entity and relation embeddings take advantage of their local structure and related semantics.Some critical paths are assigned corresponding attentive weights and then they are aggregated for the determination of the query relation validity.In particular,similarity calculation is introduced into a critical path selection algorithm,which improves search and reasoning performance.Meanwhile,the proposed algorithm avoids redundant paths between the given pairs of entities.Experimental results show that the proposed method outperforms the state-of-the-art ones in the aspects of embedding quality and query relation reasoning accuracy.Zibo Wang Chaobin Huo Yaofang Zhang Shengtao Cheng Yilu Chen Xiaojie Wei Chao Li Bailing Wang 2023Computers, Materials & Continua2023,,5:0
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