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| 1 | Foraging strategies in the greater horseshoe bat(Rhinolophus ferrumequinum)on Lepidoptera in summer显示文摘The diet of the bat Rhinolophus ferrumequinum was studied at the Zhi’an Village of Ji’an City in China, from June to August 2004. The bats were trained in a laboratory (volume: 9×4×4 m3). Foraging strategies of the bat were ob- served at night and prey remains were collected and identi- fied. The results showed that the diet consisted mainly of Lepidoptera in summer, including 11 families, more than 30 species of moths, such as Noctuidae (36.6% by number), Sphingidae (24.1%), Geometridae (13.4%) and Limacodidae (9.5%). The length of culled wings ranged from 10―40 mm (97.7%). Pearson correlation analysis showed that the bat R. ferrumequinum foraged their prey selectively, but not op- portunistically. From field studies, two ways were observed in which the bats retrieved their prey including aerial hawk- ing during peak active period of the insects and flycatching during the insects’ non-peak activity period. The bats never gleaned prey from the ground, though they appeared to be well able to detect fluttering moths on the ground. | JIN Longru FENG Jiang SUN Keping LIU Ying WU Lei LI Zhenxin ZHANG Xichen | 2005 | Chinese Science Bulletin2005,50,14: | 5 |
| 2 | Antimicrobial effect of sodium houttuyfonate on Staphylococcus epidermidis and Candida albicans biofilms显示文摘OBJECTIVE: To study antimicrobial effect of Sodium houttuyfonate(SH) on Staphylococcus epidermidis(SE) and Candida albicans(CA). METHODS: The prepared strain broths(OD600 =0.05) containing SE and CA were firstly used to test the minimal inhibitory concentrations(MICs) of SH, azithromycin(AZM) and fluconazole(FLU) by micro-dilution method. Then the biofilms of SE and CA were matured in 96-well plates, and co-cultured with SH, AZM and FLU for 1, 2 and 3 days to assess the antibiofilm efficacies of the agents with different concentrations by crystal violet staining method. At last, the treated biofilms of SE and CA by 2× MIC agents were observed by scanning electronic microscope. RESULTS: The MICs of SE and CA were 256 and 1024 μg/mL, respectively. After the 1st, 2nd and 3rd day of medications, the suppressions of biofilm were about 60%(P<0.01), 76%(P=0.000) and 75%(P=0.000) by 2×MIC SH, the suppressions of biofilm were about 90%(P=0.000), 88%(P=0.000) and 90%(P=0.000) by 2×MIC SH, which could be testified by scanning electron microscope results. However, the inhibitions of biofilm attachment had no significant difference for SE by SH and azithromycin and CA by SH and fluconazole. CONCLUSION: SH had widely anti-pathogenic effect on pathogenic biofilm formation of either bacteria or fungus, had more influence on enclosed cells of SE and CA than the traditional antibiotics, revealing its target might be the extracellular polymeric substances, and was more active to inhibit the growth of CA than SE. | Jing Shao Huijuan Cheng Daqiang Wu Changzhong Wang Lingling Zhu Zhenxin Sun Qiangjun Duan Weifeng Huang Jinliang Huang | 2013 | Journal of Traditional Chinese Medicine2013,33,6: | 4 |
| 3 | Research on One-Piece Structure Target Flow Sensing Technology Based on Fiber Bragg Grating显示文摘鉴于在传统的水力的系统的察觉存在的问题,例如大量传感器和低测量精确性,一个新一个片目标类型流动传感器基于纤维布拉格栅栏(FBG ) 被设计并且研究。紧缩的结构被设计,它是方便的基于 FBG 的原则和目标类型流动传感器的结构的分析被拆除,处理,并且安装。在液体流动放的目标的力量被变成 FBG 波长飘移,一种相应关系地。温度和种类的生气敏感上的问题被使用相称性地在伸臂的两表面上粘贴的两倍 FBG 有效地解决。液体状态上的影响在软件通过模拟被分析流畅,并且结果证明影响比传统的结构的小。在水力的系统的实验的结果证明在在双 FBG 中央波长的变化之间有一种好线性关系,在目标表上装载的质量有一种好线性关系,并且敏感是两次单个 FBG 敏感的。 | Chuntong LIU Zhengyi ZHANG Hongcai LI Zhenxin HE Xiaofeng ZHAO Rongjing WU | 2016 | Photonic Sensors2016,6,4: | 2 |
| 4 | Differentiation of neuromyelitis optica from multiple sclerosis in a cohort from the mainland of China显示文摘 | Liu Ying ZhaoGuixian Yu Hai Lyu Chuanzhen Li Zhenxin Wu Zhiying | 2014 | Chinese Medical Journal2014,,18: | 1 |
| 5 | Display technique based on surface plasmon resonant effect显示文摘In a surface plasmon resonant (SPR) configuration, real part in refraction coefficient of modulation layer material is monotonic with resonant wave length, while imaginary part is monotonic with resonant magnitude. Based on the fact above, a new type of display is proposed and designed. Firstly, a display pixel with either controllable color or controllable brightness is discussed, and then a display pixel with both controllable color and brightness is proposed in detail. At last, an SPR display with 8×8 pixels is developed and simulated. The results show that color and brightness of each display pixel in an SPR display can be tuned directly, with no need of synthesizing three basic colors, traditionally. Moreover, the display has many merits, such as high color resolution, high contrast, high brightness, fast re-sponse, etc. Yet practical usage of SPR display demands deeper study on properties of modulation layer material and fabrication techniques. | CAO ZhenXin WU LeNan | 2008 | Chinese Science Bulletin2008,53,15: | 1 |
| 6 | Review of trusted certification research on digital preservation显示文摘This paper reviews the development of research on certification of trustworthy digital preservation in the past 20 years,discusses the meaning of trustworthiness,analyzes the composition of trustworthiness,and identifies the primary elements of certification,provides references for the upcoming Chinese national digital preservation system.The author summarizes the development of the main criteria,methods and projects | Zhenxin WU | 2015 | Journal of Library Science in China2015,,1: | 0 |
| 7 | Towards Developing a CAS E- Journal Archiving System显示文摘As a part of NSTL proposed long-term preservation of digital information network, the National Science Library of CAS (NSLC) constructed a long-term preservation system of electronic journals called CAS E-Journal Archiving System, which was based on OAIS and adapted Fedora as the fundament system. The system chose a certain amount of electronic journals as pilot resources. Through three major system functional components comprising ingest, preservation management and data dissemination, the system took the long-term preservation of digital objects function into practice. The system is designed to be open and scalable. It realized digital objects management and lifecycle management. In this paper we describe the design of the system, and the issues we have learnt about long-term preservation. | ZHANG ZHIXIONG WU ZHENXIN ZHAO QI LIU JIANHUA GUO WENLI XU JIAN | 2008 | 现代图书情报技术2008,,1: | 0 |
| 8 | Power Dependence of the Recombination Processes in the In_(x)Ga_(1-x)As/GaAs Single Quantum Well显示文摘We have measured the power dependence of the photoluminesence spectra from a set of strained In_(x)Ga_(1-x)As/GaAs single quantum wells.The result shows that the excitation power has important effect on the carrier recombination processes.When the power increases from 0.5 to 14mW,the photoluminescence from the barrier becomes more intense than that from the well and the trapping efficiency decreases.At high excitation level,the ratio of the radiative recombination rate to the nonradiative recombination rate of the barrier increases ten times than that at lower excitation level,while it only doubles for the well. | QIAN Shixiong WU Jianyao YUAN Shu LI Yufen Thorwald G.Andersson CHEN Zonggui PENG Wenji SHE Weilong YU Zhenxin | 1991 | Chinese Physics Letters1991,8,8: | 0 |
| 9 | Runoff Modeling in Ungauged Catchments Using Machine Learning Algorithm-Based Model Parameters Regionalization Methodology显示文摘Model parameters estimation is a pivotal issue for runoff modeling in ungauged catchments.The nonlinear relationship between model parameters and catchment descriptors is a major obstacle for parameter regionalization,which is the most widely used approach.Runoff modeling was studied in 38 catchments located in the Yellow–Huai–Hai River Basin(YHHRB).The values of the Nash–Sutcliffe efficiency coefficient(NSE),coefficient of determination(R2),and percent bias(PBIAS)indicated the acceptable performance of the soil and water assessment tool(SWAT)model in the YHHRB.Nine descriptors belonging to the categories of climate,soil,vegetation,and topography were used to express the catchment characteristics related to the hydrological processes.The quantitative relationships between the parameters of the SWAT model and the catchment descriptors were analyzed by six regression-based models,including linear regression(LR)equations,support vector regression(SVR),random forest(RF),k-nearest neighbor(kNN),decision tree(DT),and radial basis function(RBF).Each of the 38 catchments was assumed to be an ungauged catchment in turn.Then,the parameters in each target catchment were estimated by the constructed regression models based on the remaining 37 donor catchments.Furthermore,the similaritybased regionalization scheme was used for comparison with the regression-based approach.The results indicated that the runoff with the highest accuracy was modeled by the SVR-based scheme in ungauged catchments.Compared with the traditional LR-based approach,the accuracy of the runoff modeling in ungauged catchments was improved by the machine learning algorithms because of the outstanding capability to deal with nonlinear relationships.The performances of different approaches were similar in humid regions,while the advantages of the machine learning techniques were more evident in arid regions.When the study area contained nested catchments,the best result was calculated with the similarity-based parameter regionalization scheme because of the high catchment density and short spatial distance.The new findings could improve flood forecasting and water resources planning in regions that lack observed data. | Houfa Wu Jianyun Zhang Zhenxin Bao Guoqing Wang Wensheng Wang Yanqing Yang Jie Wang | 2023 | Engineering2023,,9: | 0 |
| 10 | Case report of Cushing's syndrome with an acute psychotic presentation显示文摘一位36岁的中国女性因出现狂躁、被害妄想和自杀意念3天被送至某综合医院急诊。六个月来患者易醒、过度警觉并出现躯体症状。入心身病房后,体检发现该患者满月脸、突眼,且双腿有紫纹,因此考虑急性精神症状继发于库欣综合征。血浆皮质醇、促肾上腺皮质激素(adrenocorticotropic hormone ACTH)水平升高,腹部计算机断层扫描(computed tomography,CT)发现左肾上腺肿块,证实了该诊断。使用小剂量喹硫平(75-125 mg/d)和阿普唑仑(0.4 mg/qn)来控制精神病性症状并改善其睡眠。将一个良性的非ACTH依赖性肾上腺肿瘤手术切除后,患者的皮质醇和ACTH水平恢复正常,其精神症状也在一个月内逐渐减少,此时该患者出院。患者出院后一直门诊随诊,维持喹硫平治疗(因为担心停药对睡眠和情绪稳定的影响),总时间持续1年左右,剂量从50mg渐减至25mg至减停。这时她的精神症状已经完全消失。该病例中,病人具有库欣综合征的特殊症状,因此相对容易诊断;但在库欣综合征中急性精神病性症状可能会危及生命,也可能不出现库欣综合征的典型躯体症状(如果皮质醇增多症不严重),所以临床精神科医师在鉴别难以解释的急性精神病时,应该始终考虑将库欣综合征纳入可能的鉴别诊断。 | Yuejing WU Jiong CHEN Yongchun MA Zhenxin CHEN | 2016 | 上海精神医学2016,28,3: | 0 |