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International Journal of Nursing Sciences 2014年第4期1卷 371-375页

作者： zhe-yuan Xia Yue Kong Ting-Ting Yin Su-Hua Shi Rong Huang Yu-Hong Cheng School of Nursing Anhui University of Chinese MedicineHefeiChina Nursing Department No.174 Hospital of People's Liberation ArmyXiamenChina

Objective:To investigate the impact of acceptance of disability and psychological resilience on post-traumatic stress disorders(PTSD)in patients with ***:A total of 127 patients with burns were asked to complete PTSD Checklist-Civilian Version,Acceptance of Disability Scale and ConnoreDavidson Resilience Scale *** were evaluated using correlational and regression ***:The incidence of PTSD in burn patients was 37.80%(48/127),with an overall average checklist score of 45.78±15.29 *** was negatively correlated with the level of disability acceptance and psychological resilience(p<0.05).Multiple regression analysis showed that the depth of burn,marital status,degree of subordination,self-value and selfimprovement were factors influencing the incidence ***:Nurses should screen and identify patients with PTSD as early as possible and provide proper psychological interventions to help them accept the reality of disability and improve the level of psychological resilience。

关键词： Acceptance of disability Burns Post-traumatic Psychological resilience Stress disorders

基于统计差表与加权投票的高精度剪接位点预测

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生物化学与生物物理进展 2019年第5期46卷 496-503页

作者：曾莹陈渊袁哲明湖南农业大学湖南省农业大数据分析与决策工程技术研究中心长沙410128 湖南农业大学东方科技学院长沙410128

基于机器学习的高精度剪接位点识别是真核生物基因组注释的关键.本文采用卡方测验确定序列窗口长度,构建卡方统计差表提取位置特征,并结合碱基二联体频次表征序列;针对剪接位点正负样本高度不均衡这一情形,构建10个正负样本均衡的支持... 详细信息

基于机器学习的高精度剪接位点识别是真核生物基因组注释的关键.本文采用卡方测验确定序列窗口长度,构建卡方统计差表提取位置特征,并结合碱基二联体频次表征序列;针对剪接位点正负样本高度不均衡这一情形,构建10个正负样本均衡的支持向量机分类器,进行加权投票决策,有效解决了不平衡模式分类问题. HS^3D数据集上的独立测试结果显示,供体、受体位点预测准确率分别达到93.39%、90.46%,明显高于参比方法.基于卡方统计差表的位置特征能有效表征DNA序列,在分子序列信号位点识别中具有应用前景.

关键词：剪接位点位置特征卡方统计差表加权投票支持向量机

Morphology effect on catalytic performance of ebullated-bed residue hydrotreating over Ni-Mo/Al_(2)O_(3)catalyst:a kinetic modeling study

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Green Chemical Engineering 2024年第1期5卷 60-67页

作者： zhe Liu Juncong yuan Zongzhuang Sun Xiang Feng Yibin Liu Huihong Zhu Chong Peng Chaohe Yang State Key Laboratory of Heavy Oil Processing China University of PetroleumQingdao266580China Dalian Research Institute of Petroleum and Petrochemicals SINOPECDalian116045China State Key Laboratory of Fine Chemicals Dalian University of TechnologyDalian116024China

Upgrading of vacuum residue is of prime industrial significance due to the increasing demand for light *** the effect of catalyst morphology on vacuum residue hydrotreating performance by kinetic modeling is therefore of great ***,kinetic analysis of hydrodemetallization(HDM)and hydrodeconradsoncarbon-residue(HDCCR)performances on industrial Ni-Mo/Al_(2)O_(3)catalysts with spherical and cylindrical morphologies in ebullated-bed were evaluated for more than 1600 *** was found that the percentage of light impurities easier to be removed on spherical catalysts were 78.20%and 39.43%in HDM and HDCCR reactions,respectively,higher than 65.20%and 17.50%on cylindrical *** suggests that catalyst morphology affects the impurity removal ability and the impurity properties,resulting in better hydrotreating performance of spherical *** work not only combines catalyst morphology with impurity removal capability through kinetic modeling,but also provides new insights into the design of efficient hydrotreating catalysts.

关键词： Morphology effect Kinetic analysis Vacuum residue Hydrotreating

Application of Capillary Electrophoretic On-Line Sequential Concentration Based on Micelle to Solvent Stacking

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American Journal of Analytical Chemistry 2018年第1期9卷 52-63页

作者： Shan Sun yuanqi Lu zhe yuan Qingqiang Yao School of Medicine and Life Sciences University of Jinan-Shandong Academy of Medical Sciences Jinan China Institute of Materia Medica Shandong Academy of Medical Sciences Jinan China Key Laboratory for Rare & Uncommon Diseases of Shandong Province Jinan China Analysis and Testing Centre Dezhou University Dezhou China

To take advantage of micelle to solvent stacking (MSS) to achieve more sensitivity enhancement with enough selectivity, the application of capillary electrophoretic online sequential concentration based on the MSS was reviewed. MSS has been coupled to sweeping FASS, FASI and normal EKI. Furthermore, multiple stacking by coupling MSS with more than one stacking method has also been reported. It is more sensitive and selective than solely used of one or two stacking methods and is very suitable for complex and trace sample analysis.

关键词： Capillary Electrophoresis (CE) On-Line Sequential Concentration Micelle to Solvent Stacking (MSS)

Simultaneously enhancing erosion and compression resistance:designing AlCoCrFeNi high-entropy alloy strengthened Ag-based contacts

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Rare Metals 2024年第9期43卷 4476-4492页

作者： Xiao-Yang Xue zhe Wang Hui-Ling Nie Zhao yuan Jun Wang Chang-Hu Xu Kai Wen Cong-Hao Yu School of Materials Science and Engineering Xi’an Polytechnic UniversityXi’an 710048China School of Physics Xi’an Jiaotong UniversityXi’an 710049China Key Laboratory of Pulsed Power Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China

Designing microstructures and unveiling dynamic erosion mechanisms remain important challenges for Ag-based *** simultaneously enhance erosion and compression resistance,an Al Co Cr Fe Ni high-entropy alloy(HEA)is introduced into Ag-based materials to fabricate novel Ag-HEA contacts with island-and skeletonrestricted *** arc erosion experimental results reveal that the skeleton-restricted HEA microstructure is the key factor in reducing the hill and crater morphologies of the contact surface,effectively delaying material transfer between the movable and stationary *** molten bridge evolution and compressive deformation behavior of Ag-HEA contacts with various microstructures are investigated using molecular dynamics(MD)*** results indicate that the constraint of Ag atom diffusion in the molten pool and the involvement of HEA atoms in the molten bridge are the primary mechanisms for improving erosion *** skeleton-restricted HEA microstructure reduces the total energy and structural stability of the molten bridge system and promotes its fracture and ***,the synergistic effect of the twin and Lomerz–Cottrell lock structures can hinder dislocation glide,generating dispersed and small-area stacking faults in the Ag matrix and mitigating the concentration of shear ***,the skeleton-restricted HEA microstructure contributes positively to compression *** study presents a novel approach to designing Ag-based contacts.

关键词： Electrical contact materials High entropy alloys Arc erosion Molecular dynamics Microstructures

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机载光电平台的复合补偿控制方法

光学精密工程 2012年第6期20卷 1272-1281页

作者：扈宏杰王元哲北京航空航天大学自动化科学与电气工程学院北京100191 北京航空航天大学飞行器控制一体化技术重点实验室北京100191

为实现机载光电平台的实时高精度稳定跟踪控制,提出了一种基于改进干扰观测器和模糊逼近的复合自适应补偿控制方法。首先,根据系统的机械结构特点分析了各框架间的运动学耦合关系;考虑到载体扰动的影响,提出了一种基于速度信号的改进干... 详细信息

为实现机载光电平台的实时高精度稳定跟踪控制,提出了一种基于改进干扰观测器和模糊逼近的复合自适应补偿控制方法。首先,根据系统的机械结构特点分析了各框架间的运动学耦合关系;考虑到载体扰动的影响,提出了一种基于速度信号的改进干扰观测器结构,并分析了它的工作原理和鲁棒稳定性。然后,针对机械系统中普遍存在的摩擦等干扰现象,设计了基于模糊逼近的复合补偿控制策略以保证系统的跟踪性能。最后,利用Lyapunov稳定性理论证明了系统的全局稳定性和跟踪误差的渐进收敛。实验结果显示,该控制方法具有较高的稳定精度,其跟踪误差可达μrad数量级,表明该方法可以有效地抑制载体扰动的影响并且具有良好的跟踪性能,是可行有效的。

关键词：机载光电平台视轴稳定跟踪干扰观测器模糊系统复合控制 Lyapunov稳定性

Geostatistical Analysis on the Temporal Patterns of the Yellow Rice Borer, Tryporyza incertulas

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Rice science 2005年第3期12卷 207-212页

作者： yuan zhe-ming WANG Zhi Hu Xiang-yue Bio-safety Science and Technology College Hunan Agricultural University Changsha 410128 China Department of Life Science Hunan Arts and Science University Changde 415000 China

In order to comprehend temporal pattern of the larvae population of the yellow rice borer, Tryporyza incertulas, and provide valuable information for its forecast model, the data series of the population for each generation and the over-wintered larvae from 1960 to 1990 in Dingcheng District, Changde City, Hunan Province, were analyzed with geostatistics. The data series of total number, the 1st generation, the 3rd generation and the over-wintered larvae year to year displayed rather better autocorrelation and prediction. The data series of generation to generation, the 2nd generation and the 4th generation year to year, however, demonstrated poor autocorrelation, especially for the 4th generation, whose autocorrelation degree was zero. The population dynamics of the yellow rice borer was obviously intermittent. A remarkable cycle of four generations, one year, was observed in the population of generation to generation. Omitting the certain generation or interposing the over-wintered larvae only resulted in a less or slight change of autocorrelation of the whole data series generation to generation. Crop system, food, climate and natural enemies, therefore, played more important roles in regulating the population dynamics than base number of the larvae. The basic techniques of geostatistics applied in analyzing temporal population dynamics were outlined.

关键词： Tryporyza incertulas geostatistics temporal patterns population forecast

A lethal mice model of recombinant vesicular stomatitis viruses for EBOV-targeting prophylactic vaccines evaluation

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Virologica Sinica 2024年第3期39卷 516-519页

作者： Hong-Qing Zhang zhe-Rui Zhang Cheng-Lin Deng Zhi-Ming yuan Bo Zhang Key Laboratory of Special Pathogens and Biosafety Wuhan Institute of VirologyCenter for Biosafety Mega-ScienceChinese Academy of SciencesWuhan430071China University of Chinese Academy of Sciences Beijing100049China Hubei Jiangxia Laboratory Wuhan430200China

Dear editor,Ebola virus(EBOV)is a member of the genus Orthoebolavirus within the family of ***'s the causative agent of Ebola virus disease(EVD),characterized by general malaise,severe gastrointestinal illness,febrile,coagulopathy,multi-organs dysfunction,and high mortality(up to 90%)in humans and nonhuman primates(NHPs)(Jacob et al.,2020).Since its discovery in 1976,EBOV has grabbed the global concerns,especially after the West African epidemic from 2014 to 2016,which resulted in 30,000 cases and over 11,000 deaths(Feldmann et al.,2020;Jacob et al.,2020).From 2018 to 2022,there have been thousands of infections primarily in the Democratic Republic of the Congo(DRC),resulting in over 2000 *** highlights the importance of continued attention and ongoing surveillance(***/emergenci es/disease-outbreak-news).

关键词： organs mortality editor

Exciton luminescence and many-body effect of monolayer WS2 at room temperature

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Chinese Physics B 2022年第5期31卷 670-676页

作者： Jian-Min Wu Li-Hui Li Wei-Hao zheng Bi-yuan zheng zhe-yuan Xu Xue-Hong Zhang Chen-Guang Zhu Kun Wu Chi Zhang Ying Jiang Xiao-Li Zhu Xiu-Juan Zhuang Key Laboratory for Micro-Nano Physics and Technology of Hunan Province School of Physics and ElectronicsHunan UniversityChangsha 410082China College of Materials Science and Engineering Hunan UniversityChangsha 410082China

Monolayer transition metal dichalcogenides favor the formation of a variety of excitonic quasiparticles,and can serve as an ideal material for exploring room-temperature many-body effects in two-dimensional ***,using mechanically exfoliated monolayer WS;and photoluminescence(PL)spectroscopy,exciton emission peaks are confirmed through temperature-dependent and electric-field-tuned PL *** dependence of exciton concentration on the excitation power density at room temperature is quantitatively *** concentrations covering four orders of magnitude are divided into three *** the low carrier concentration stage,the system is dominated by excitons,with a small fraction of trions and localized *** the high carrier concentration stage,the localized exciton emission from defects coincides with the emission peak position of trions,resulting in broad spectral characteristics at room temperature.

关键词： transition metal dichalcogenides photoluminescence localized exciton exciton density

Optical modification of nonlinear crystals for quasi-parametric chirped-pulse amplification

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Fundamental Research 2024年第1期4卷 43-50页

作者： Qian Lin Jingui Ma zhe Yin Peng yuan Jing Wang Guoqiang Xie Liejia Qian Key Laboratory for Laser Plasmas(MOE) Collaborative Innovation Center of IFSASchool of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghai 200240China

Quasi-parametric chirped-pulse amplification(QPCPA),which features a theoretical peak power much higher than those obtained with Ti:sapphire laser or optical parametric chirped-pulse amplification,is promising for future ultra-intense *** doped rare-earth ion used for idler dissipation is critical for effective QPCPA,but is usually not compatible with traditional *** far,only one dissipative crystal of Sm^(3+)-doped yttrium calcium oxyborate has been grown and *** we introduce optical means to modify traditional crystals for QPCPA *** theoretically demonstrate two dissipation schemes by idler frequency doubling and sum-frequency generation with an additional *** contrast to absorption dissipation,the proposed nonlinear dissipations ensure not only high signal efficiency but also high small-signal *** demonstrated ability to optically modify crystals will facilitate the wide application of QPCPA.

关键词： Quasi-parametric amplifier Second-harmonic generation Sum-frequency generation Back conversion Idler dissipation