检索结果-南通市图书馆

Evaluation of undergraduate students’nursing assessment and communication skills through an objective structured clinical examination within a high-fidelity simulation using a student-simulated patient

引用

Frontiers of Nursing 2021年第2期8卷 159-168页

作者： Hao-bin yuan School of Health Sciences and Sports Macao Polytechnic InstituteRua de Luis Gonzaga GomesMacaoChina

Objective:To evaluate nursing students’assessment and communication skills through an objective structured clinical examination(OSCE)within a high-fidelity simulation using a student-simulated patient(SSP)and analyze the validity,reliability,degree of difficulty,and discriminability of the ***:A descriptive study was conducted at one nursing school in *** scenarios were designed using a high-fidelity simulator combined with SSPs.A convenience sample of 54 baccalaureate nursing students completed the *** nursing assessment OSCE checklist(NAOC)and the communication evaluation rubric(CER)were used as observational measurements with three-point Likert scales(2=Achieved,1=Partly achieved,0=Not completed/Incorrect).Results:Difficulty coefficients of the exam were 0.63 for nursing assessment skills and 0.56 for communication *** discrimination index of the majority items of the NAOC(86.4%)was>0.20,showing a better to good *** items of the CER had satisfactory indexes of item discrimination(from 0.38 to 0.84).Students received high scores in conducting blood oxygen saturation and cardiac and lung auscultation but low scores in vomiting and diarrhea *** presented good communication skills in eye contacting and listening,but culture assessment needs to be *** students with experiences in simulation or simulated patient(SP)interactions had better assessment and communication skills than students without those *** was a positive relationship between nursing assessment and communication skills(r=0.67,P=0.000).Conclusions:SSPs were involved in enhancing the realism of interactions in simulated *** students can conduct nursing assessments specific to patient conditions,explain the conditions to the patient,and ensure that the patient remains informed at all times of the precautions to be ***,students’cultural awareness and some communication skills need further ***

关键词： communication high-fidelity simulation nursing assessment OSCE student-simulated patient

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Studies on Non-potentiometric Piezoelectric Sensor System for Determination of Vitamin B_1

引用

Chemical Research in Chinese Universities 2003年第3期19卷 280-285页

作者： yuan Jin bin NIE Li hua YAO Shou zhuo State Key Laboratory of Chemo/Biosensing&Chemometrics College of Chemistry and Chemical EngineeringHunan UniversityChangsha 410082P.R.China

A piezoelectric sensor responsive to vitamin B 1 was fabricated based on the vitamin B 1 tetraphenylborate ion pair. The general performance characteristics of the sensor are presented here. The proposed sensor showed a wide working pH range, a good sensitivity and selectivity. The response range is between 1 0×10 -7 -4 9×10 -5 mol/L with a detection limit of 8×10 -8 mol/L at pH 4 0. The selectivity should be attributed to the preferential adsorption of the component ion on the membrane/solution interface. The adsorption behavior of vitamin B 1 on the crystal surface was investigated with a quartz crystal impedance(QCI) system.

关键词： Piezoelectric sensor Vitamin B_(1) Ion-pair complex

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

SAND: semi-automated adaptive network defense via programmable rule generation and deployment

引用

Science China(Information Sciences) 2022年第7期65卷 121-138页

作者： Haoyu CHEN Deqing ZOU Hai JIN Shouhuai XU bin yuan National Engineering Research Center for Big Data Technology and System Services Computing Technology and System LabCluster and Grid Computing Lab School of Computer Science and TechnologyHuazhong University of Science and Technology National Engineering Research Center for Big Data Technology and System Services Computing Technology and System LabHubei Engineering Research Center on Big Data Security School of Cyber Science and EngineeringHuazhong University of Science and Technology Department of Computer Science University of Colorado at Colorado Springs

Cyber security is dynamic as defenders often need to adapt their defense postures. The state-ofthe-art is that the adaptation of network defense is done manually(i.e., tedious and error-prone). The ideal solution is to automate adaptive network defense, which is however a difficult problem. As a first step towards automation, we propose investigating how to attain semi-automated adaptive network defense(SAND). We propose an approach extending the architecture of software-defined networking, which is centered on providing defenders with the capability to program the generation and deployment of dynamic defense rules enforced by network defense tools. We present the design and implementation of SAND, as well as the evaluation of the prototype implementation. Experimental results show that SAND can achieve agile and effective dynamic adaptations of defense rules(less than 15 ms on average for each operation), while only incurring a small performance overhead.

关键词： network defense Network defense adaptive defense automated defense programmable defense security services software-defined networking security management

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Sn Alloy and Graphite Addition to Enhance Initial Coulombic Efficiency and Cycling Stability of SiO Anodes for Li-Ion Batteries

引用

Energy & Environmental Materials 2022年第1期5卷 353-359页

作者： Xingyang Du Hanying Zhang Xuexia Lan bin yuan Renzong Hu School of Materials Science and Engineering Guangdong Provincial Key Laboratory of Advanced Energy Storage MaterialsSouth China University of TechnologyGuangzhou 510640China

Silicon monoxide(SiO)has aroused increased attention as one of the most promising anodes for high-energy density Li-ion *** enhance the initial Coulombic efficiencies(ICE)and cycle stability of SiO-based anodes,a new facile composition and electrode design strategy have been adapted to fabricate a SiO-Sn-Co/graphite(G)*** achieves a unique structure where tiny milled SiO-Sn-Co particles are dispersed among two graphite *** this hybrid electrode,Sn-Co alloys promoted Li;extraction kinetics,and the holistic reversibility of SiO and graphite enhanced the electrical *** SiO-Sn-Co/G electrode delivered an average ICE of 77.6%and a reversible capacity of 640 mAh g^(-1)at 800 mA g^(-1),and the capacity retention was above 98%after 100 cycles,which was much higher than that of the SiO with an ICE of 55.3%and a capacity retention of 50%.These results indicated that this was reliable method to improve the reversibility and cycle ability of the SiO ***,based on its easy and feasible fabrication process,it may provide a suitable choice to combine other alloy anodes with the graphite anode.

关键词： ball milling cycle performance initial Coulombic efficiency silicon monoxide tin-cobalt alloy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Understanding the phenomenon of capacity increasing along cycles: In the case of an ultralong-life and high-rate SnSe-Mo-C anode for lithium storage

引用

Journal of Energy Chemistry 2022年第9期31卷 133-142,I0005页

作者： Xin Wu Xingyu Xiong bin yuan Jun Liu Renzong Hu School of Materials Science and Engineering.Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials South China University of TechnologyGuangzhou 510640GuangdongChina

A good cycling stability is a prerequisite for the application of metal-based materials in lithium-ion batteries(LIBs). However, an abnormal increase in capacity is often observed, which has rarely been focused on in many studies. In our SnSe-Mo-C composite anode, a high reversible capacity of 737.4 mAh g^(-1)remained after 5000 cycles at 5 A g^(-1)between 0.01 and 3.0 V versus Li/Li+. However, a continuous capacity increase occurred in the initial cycles, with 1086.9 mAh g^(-1)after 1000 cycles and 1216.9 mAh g^(-1)after 1500 cycles, respectively. Further studies revealed that the electrolyte decomposed at high potentials(2.5–3.0 V) and provided additional capacities. The cut-off voltage and electrolyte filling were controlled, which eliminated the impact of electrolyte decomposition, prevented rapid capacity decay, and provided a stable cycling performance for SnSe-Mo-C anodes in LIBs. This work shows that the composite anode is promising for lithium storage and the findings provide new insights into understanding and controlling the phenomenon of capacity increase with cycling in metal-based anode materials.

关键词： Lithium-ion battery SnSe Capacity increase Electrolyte decomposition

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Neutrino Mass from a Higher-Dimensional Operator

引用

Chinese Physics Letters 2011年第6期28卷 78-81页

作者： NING Guo-Zhu WU yuan-bin School of Physics Nankai UniversityTianjin 300071

We calculate the neutrino mass induced at one loop in the cascade seesaw *** ratio between the two neutrino masses,which are respectively generated from an operator of mass dimension(3+4n)occurring at one loop and an operator of dimension(5+4n)at tree level,is also *** studies show that a relatively low new physics scale could accommodate the tiny neutrino mass of desired order without demanding small *** also find that the ratio will reach order one when the new physics scale is higher than several TeV and n is *** this case,the contribution to neutrino mass from higher order quantum effects becomes important and cannot be ignored.

关键词： mechanism dimension operator

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Epidemiology of liver cirrhosis and associated complications:Current knowledge and future directions

引用

World Journal of Gastroenterology 2022年第41期28卷 5910-5930页

作者： yuan-bin Liu Ming-Kai Chen Department of Gastroenterology Renmin Hospital of Wuhan UniversityWuhan 430000Hubei ProvinceChina

Cirrhosis causes a heavy global *** this review,we summarized up-todate epidemiological features of cirrhosis and its *** epidemiological studies reported an increase in the prevalence of cirrhosis in 2017 compared to in 1990 in both men and women,with 5.2 million cases of cirrhosis and chronic liver disease occurring in *** caused 1.48 million deaths in 2019,an increase of 8.1%compared to ***-adjusted life-years due to cirrhosis ranked 16th among all diseases and 7th in people aged 50-74 years in *** global burden of hepatitis B virus and hepatitis C virus-associated cirrhosis is decreasing,while the burden of cirrhosis due to alcohol and nonalcoholic fatty liver disease(NAFLD)is increasing *** described the current epidemiology of the major complications of cirrhosis,including ascites,variceal bleeding,hepatic encephalopathy,renal disorders,and *** also summarized the epidemiology of hepatocellular carcinoma in patients with *** the future,NAFLD-related cirrhosis will likely become more common due to the prevalence of metabolic diseases such as obesity and diabetes,and the prevalence of alcohol-induced cirrhosis is *** altered epidemiology should be clinically noted,and relevant interventions should be undertaken.

关键词： Causes Cirrhosis Complications Cost Epidemiology Burden Feature

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

MECHANISM AND PREDICTION OF MATERIAL ABRASION IN HIGH-VELOCITY SEDIMENT-LADEN FLOW

引用

Journal of Hydrodynamics 2006年第6期18卷 760-764页

作者： HUANG Xi-bin yuan Yin-zhong College of Water Conservancy and Hydropower Engineering Hohai University Nanjing 210098 China

The wall surface of material is prone to silt abrasion by high-velocity sediment-laden flow. The silt abrasion is different form cavitation erosion. In this article, the characteristics of silt abrasion were discussed, The mechanism of silt abrasion was analyzed and the formation and development of ripple shape on wall surface of material were explained thereafter. Based on turbulence theory and test data, some formulas were derived for predicting the abrasion rate of concrete wall surface in high-velocity sediment-laden flow. The calculated results show good agreement with the experimental data.

关键词： high-velocity sediment-flow silt abrasion,cavitation erosion abrasion rate

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A Novel Energy Efficient MAC Protocol for Wireless Body Area Network

引用

China Communications 2015年第2期12卷 11-20页

作者： LIU Jing LI Ming yuan bin LIU Wenlong Department of Electronic Engineering Shanghai Jiaotong University The State Key Laboratory of Integrated Service Networks Xidian University Cooperative Medianet Innovation Center Shanghai Jiao Tong University

Wireless Body Area Network(WBAN) is the most promising technology in e-health *** efficiency stands out as the paramount issue for *** this paper,an energy efficient MAC protocol named Quasi-Sleep-Preempt-Supported(QSPS) is *** protocol is mainly TDMA-based:nodes transmit packets in the allocated slots,while entering the Q-Sleep mode in other ***,for a node with emergency packet,it can broadcast a special designed Awakening Message to wake up the whole network and preempts the right to use the current slot to transmit that emergency packet,thus decreasing *** with relevant protocols,QS-PS can achieve high energy efficiency and decrease the delay of both normal packets and emergency packets.

关键词： WBAN energy efficient delay Quasi-Sleep TDMA preemption

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Self-powered macroscopic Brownian motion of spontaneously running liquid metal motors

引用

Science Bulletin 2015年第13期60卷 1203-1210页

作者： bin yuan Sicong Tan Yixin Zhou Jing Liu Key Laboratory of Cryogenics Technical Institute of Physics and Chemistry Chinese Academy of Sciences Department of Biomedical Engineering School of MedicineTsinghua University

We disclosed the interiorly driven macroscopic Brownian motion behavior of self-powered liquid metal motors. Such tiny motors in millimeter scale move randomly at a velocity magnitude of centimeters per second in aqueous alkaline solution, well resembling the classical Brownian motion. However, unlike the existing phenomena, where the particle motions were caused by collisions from the surrounding molecules, the current random liquid metal motions are internally enabled and self-powered, along with the colliding among neighboring motors, the substrate and the surrounding electrolyte molecules. Through uniformly dissolving only 1% （mass percentage） A1 into GaInl0, many tiny motors can be quickly fabricated and activated to take the Brownian-like random motions. Further, we introduced an experimental approach of using optical image contrast, which works just like the Wilson cloud chamber, to distinctively indicate the motor trajectory resulted from the generated hydrogen gas stream. A series of unusual complicated multi-phase fluid mechanics phenomena were observed. It was also identified that the main driving factor of the motors comes from the H2 bubbles generated at the bottom of these tiny motors, which is different from the large size self-fueled liquid metal machine. Several typical mechanisms for such unconventional Brownian-like motion phenomena were preliminarily interpreted.

关键词： Self-powered Brownian motion . Liquidmetal motor - Al-Ga-In alloy . Bubble repulsion .Optical image contrast

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：