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2015 Seventh International Conference on Measuring Technology and Mechatronics Automation最新文献

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The Test and Evaluation of Resolvins E1 Pharmacodynamics in Mice with Acute Lung Injury 急性肺损伤小鼠Resolvins E1的药效学试验与评价
Wen-hong Qiu, Wenjian Song, Yeli Gong, Song Hu, W. Zhong, Kaiwen Guo
In order to fully test the resolvins E1 pharmacodynamics in mice with acute lung injury and evaluate the influence of RvE1 on inflammatory response. 30 male Kunming mice were randomly divided into three groups, normal control group, ALI model control group and RvE1 treated group. The animal model of ALI was established by LPS intraperitoneal injection. After 12h, killed the experimental animals and observed the histological changes of the lung tissues, and test the wet-to-dry (W/D) ratio of the lung tissues. Measured the contents of TNF-a in BALF by ELISA and measured NF-κB in lung homogenate by western blotting. Histological studies showed the lung injury was significantly alleviated and the lung tissue structures became nearly normal, and the infiltrated inflammatory cells and exudates in alveolar and bronchial lumen were significant decrease in RvE1 treated group. The W/D ratio and contents of TNF-a in BALF and the level of NF-κB in RvE1 treated mice was significantly lower than those in ALI model control group. The test results show that RvE1 can inhibit inflammatory response and alleviate lung injury in mice with acute lung injury.
为了充分检测RvE1在急性肺损伤小鼠体内的药效学,评价RvE1对炎症反应的影响。将30只雄性昆明小鼠随机分为正常对照组、ALI模型对照组和RvE1治疗组。采用LPS腹腔注射建立ALI动物模型。12h后处死实验动物,观察肺组织组织学变化,测定肺组织湿干比(W/D)。ELISA法测定BALF中TNF-a的含量,western blot法测定肺匀浆中NF-κB的含量。组织学研究显示,RvE1治疗组大鼠肺损伤明显减轻,肺组织结构基本恢复正常,肺泡腔和支气管腔内浸润炎性细胞及渗出物明显减少。RvE1处理小鼠的W/D比、半胱氨酸中TNF-a含量及NF-κB水平均显著低于ALI模型对照组。实验结果表明,RvE1能抑制急性肺损伤小鼠的炎症反应,减轻肺损伤。
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引用次数: 0
News of Atomic Events Time Sequence Relationship Recognition Based on Function Word and Predicate Co-occurrence 基于功能词与谓词共现的原子事件时间序列关系识别
Yikai Gao, Maofu Liu, Xiangdong Luo, He Zhang
The temporal relation commonly exists in the concepts of events and it is a kind of natural connection among the information unit. It proposes a kind of temporal relation recognition of news events based on the co-occurrence of functional word and predicate for the news corpus in this paper. On the basis of extraction of news atomic events and excavation of determinants of temporal relations, construct the co-occurrence relation network of semantic knowledge base and verb sequence so as to build semantic temporal relation rule base for the recognition of temporal relation among news atomic events. The experimental result reveals that the temporal relation recognition of news atomic events based on the co-occurrence of functional word and predicate.
时间关系普遍存在于事件概念中,是信息单元之间的一种自然联系。针对新闻语料库,提出了一种基于虚词和谓词共现的新闻事件时态关系识别方法。在提取新闻原子事件和挖掘时间关系决定因素的基础上,构建语义知识库与动词序列共现关系网络,建立语义时间关系规则库,实现新闻原子事件间时间关系的识别。实验结果表明,新闻原子事件的时间关系识别是基于功能词和谓词的共现。
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引用次数: 1
Numerical Simulation Analysis with FLAC3D on Retrofitting and Strengthening of Existing Deep Foundation Pit 既有深基坑改造加固的FLAC3D数值模拟分析
H. Xu
Taking a reinforcement engineering about existing foundation pit as the background, the FLAC3D is used to simulate the process of construction and pile-anchor supporting system. During the simulation Mohr-Coulomb model is used and contact elements are applied to the interfaces between anchor and soil. According to the measured data and parametric analysis results, the soil parameters are calculated with FLAC3D. By using these parameters, the existing supporting deformation under original scheme is calculated. The reinforcement scheme is adopted on the basis of calculation results. The analysis results of the deformation, that were calculated by this model, were generally in agreement with the measured data. Furthermore, the agreement shows that the FLAC3D model and analytical method are reliable. And the results of FLAC3D numerical simulations can satisfy the need of engineering, so it can be well applied to analyze and predict practical engineering.
以某既有基坑加固工程为背景,利用FLAC3D软件对施工过程及桩锚支护体系进行了模拟。在模拟过程中,采用莫尔-库仑模型,并将接触单元应用于锚杆与土体界面。根据实测数据和参数分析结果,利用FLAC3D软件对土体参数进行了计算。利用这些参数,计算了原方案下现有支护变形。根据计算结果,采用了相应的加固方案。该模型计算的变形分析结果与实测数据基本吻合。结果表明,FLAC3D模型和分析方法是可靠的。FLAC3D数值模拟结果可以满足工程需要,可以很好地应用于实际工程的分析和预测。
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引用次数: 1
The Component Analysis of Propofol and Etomidate Mixture and Its Clinical Efficacy 异丙酚与依托咪酯合剂的成分分析及临床疗效
Yong Liao, Yan You, Xuejun Zhou, Yang Guo, Zhi-Ling Tang, Q. Wang, Daolin Jian
At present, medication safety is the key event in hospital. This paper discusses the pharmacy stability of propofol and etomidate mixture and its clinical efficacy in combination. In order to solve the problem efficiently, we adopt a high performance liquid chromatography(HPLC)and a nuclear magnetic resonance spectroscopy(NMR) to determinate the stability of propofol and etomidate mixture fristly. Then 120 patients of early pregnancy undergoing abortion surgeries were randomly assigned to propofol group(P group), etomidate group(E group) and propofol + etomidate group(EP group). Patients in P group were induced with 1% propofol 15ml. In E group, Patients were induced with 0.2% etomidate 15ml. In EP group, induction was performed with 1% propofol 10ml and 0.2% etomidate 5ml. To compare the results of hemodynamics, injection pain, myoclonus and recovery time among groups. As a results, the comparision of HPLC and H1-NMR showed nice chemical stability of samples. EP group has obvious advantages.
当前,医院的用药安全是重中之重。本文探讨异丙酚与依托咪酯合剂的药学稳定性及其联用的临床疗效。为了有效地解决这一问题,我们首先采用高效液相色谱法(HPLC)和核磁共振波谱法(NMR)测定异丙酚和依托咪酯混合物的稳定性。将120例进行人工流产手术的早孕患者随机分为异丙酚组(P组)、依托咪酯组(E组)和异丙酚+依托咪酯组(EP组)。P组采用1%异丙酚15ml诱导。E组患者给予0.2%依托咪酯15ml诱导。EP组以1%异丙酚10ml、0.2%依托咪酯5ml诱导。比较两组患者血流动力学、注射痛、肌阵挛及恢复时间。结果表明,HPLC和H1-NMR的对比表明样品具有良好的化学稳定性。EP组优势明显。
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引用次数: 0
Steady State Membrane Potential and Sodium Current Changes during High Frequency Electrical Nerve Stimulation 高频神经电刺激时稳态膜电位和钠电流的变化
Lifei Sun, Hailong Liu
Nerve injuries found in previous studies need to be explained with appropriate simulation studies. This study employed an axonal model based on the Frankenhaeuser-Huxley (FH) equations to investigate the changes of membrane potentials and sodium currents during high frequency (HF) electrical stimulation. The HF electrical stimulation induced continuously changing high-amplitude membrane responses different from the normal action potentials (APs). The phenomena of steady state depolarization and hyper polarization were observed at relatively low (1 kHz) and high (10 kHz) frequency HF currents respectively, for which overall inward and outward sodium fluxes occurred. Although only inward sodium flux occurred at low amplitude (1 mA) HF current, both inward and outward sodium fluxes were observed at high amplitude (5 mA) HF current. Higher frequencies (10 kHz) of HF currents caused more inward sodium fluxes and had bigger inward-to-outward ratio values. The results suggested the existence of an optimal HF frequency for HF electrical nerve stimulation. Successful verification of this would promote the design of safe HF electrical nerve stimulation protocols.
在以往的研究中发现的神经损伤需要通过适当的模拟研究来解释。本研究采用基于Frankenhaeuser-Huxley (FH)方程的轴突模型,研究了高频电刺激下膜电位和钠电流的变化。高频电刺激诱导了不同于正常动作电位(APs)的持续变化的高振幅膜反应。在相对较低(1 kHz)和较高(10 kHz)频率的高频电流下,分别观察到稳态退极化和超极化现象,钠通量总体向内和向外。虽然在低幅值(1 mA)高频电流下只发生向内的钠通量,但在高幅值(5 mA)高频电流下均观察到向内和向外的钠通量。高频电流频率越高(10 kHz),向内的钠通量越大,向内与向外的比值越大。结果提示,高频神经电刺激存在一个最佳高频频率。成功的验证将促进高频神经电刺激方案的设计。
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引用次数: 2
Design and Implementation of Remote Medical Nursing Monitoring System Based on Computer Network 基于计算机网络的远程医疗护理监控系统的设计与实现
Luo Shi-yu
In this paper, we proposed an effective remote medical nursing monitoring system, which makes full use of computer network technology. After surveying on the related works about remote monitoring system, we demonstrate how to exploit the remote monitoring mode in the health care system. The proposed remote medical nursing monitoring system consists of central server and several terminal equipments. For each equipment, telecontroller, camera, and care bed are installed. Particularly, our proposed monitoring system is made up of "Signal processing model", "Embedded development board", and "Data analysis model". The embedded board is utilized to transmit the digital signals to the remote server through wireless data transmission, and then the sensing signals are memorized. Finally, the doctors can make health care decisions by the data analysing algorithm and the data visualization approach.
本文充分利用计算机网络技术,提出了一种有效的远程医疗护理监控系统。在对远程监控系统相关工作进行调研的基础上,阐述了远程监控模式在医疗卫生系统中的应用。提出的远程医疗护理监控系统由中心服务器和多台终端设备组成。每台设备都安装了遥控器、摄像机和护理床。具体来说,我们提出的监控系统由“信号处理模型”、“嵌入式开发板”和“数据分析模型”组成。所述嵌入式板通过无线数据传输将所述数字信号传输到远程服务器,然后将所述传感信号存储。最后,通过数据分析算法和数据可视化方法,医生可以做出医疗保健决策。
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引用次数: 2
Anti-virus System Structure Analysis and Design under Network Environment 网络环境下防病毒系统结构分析与设计
Z. Guohua
The current network security technologies are reviewed, the present situation and the demand of network security is analyzed, the key network security technology is investigated. Starting from the enterprise information safety, the network virus, access control and information system stability is analyzed. On this basis, the enterprise network security scheme is designed. This system can provide information security management with a more comprehensive, convenient, intuitive, accurate virus monitoring platform, reduce damage and risk caused by growing virus on network, and provide security for the enterprise's informatization construction.
综述了当前网络安全技术,分析了网络安全的现状和需求,研究了网络安全的关键技术。从企业信息安全出发,对网络病毒、访问控制和信息系统稳定性进行了分析。在此基础上,设计了企业网络安全方案。该系统可以为信息安全管理提供一个更加全面、方便、直观、准确的病毒监测平台,减少病毒在网络上滋生带来的危害和风险,为企业的信息化建设提供安全保障。
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引用次数: 0
Study on the Stress Characteristics of the Secant Pile Wall in the Foundation Pit Support 基坑支护中割线桩墙应力特性研究
Liu Gengning, Tang Liansheng, Wu Yuebiao, Zhuang Yuehuan, Sun Yinlei
The secant pile wall is a new type of foundation pit retaining structure. The Stress distribution and characteristics analysis are important to the study on the deformation of foundation pit retaining wall. In this paper, through the theoretical derivation and field testing, the force and bending moment of the secant pile wall are analyzed and discussed. Based on the analysis of the secant pile wall influence factors, combining with the theoretical formula of the reinforcement stress, the bending moments of the secant pile wall in different situations are deduced to ensure the theoretical values close to the measured value. The comprehensive effect coefficient i between the piles and soils is considered, the deduced formula of the stress and bending moment are amended. In the last, combining with the analysis of the field tests, the reasonable value rang of the comprehensive effect coefficient i is obtained, which can ensure the security of the foundation pit supporting. In this paper, the study result can provide theoretical directions for the deformation mechanism of the secant pile wall and simplify the calculation procedure of the secant pile wall, in finally, it will provide reliable basis for the design and construction of the foundation pit retaining structure.
割线桩墙是一种新型的基坑支护结构。基坑挡土墙的应力分布及其特征分析是基坑挡土墙变形研究的重要内容。本文通过理论推导和现场试验,对割线桩墙的受力和弯矩进行了分析和讨论。在分析割线桩墙影响因素的基础上,结合钢筋应力理论公式,推导出割线桩墙在不同情况下的弯矩,保证理论值与实测值接近。考虑桩土综合效应系数i,对推导出的桩土应力和弯矩公式进行了修正。最后,结合现场试验分析,得出综合效应系数i的合理取值范围,以保证基坑支护的安全性。本文的研究结果可以为割线桩墙的变形机理提供理论指导,简化割线桩墙的计算程序,最终为基坑支护结构的设计和施工提供可靠的依据。
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引用次数: 1
Dynamic Response Analysis for Rockfill Dam under the Condition of Different Valley 不同河谷条件下堆石坝动力响应分析
Ding Lu-jun, Liu Yu-hong
In this paper, by using the equivalent linearization method with the three-dimensional finite element numerical analysis software developed, Comparative analysis of the panel stress and acceleration under the conditions of different river valleys, the results show that: the more wide of river valley, the panel stress peak value, the greater the stress peak location is gradually moving towards the direction of the valley is slow, With widening valley, river on both sides of the dam binding force is abate, therefore affect smaller, so the dynamic analysis of the concrete face rock fill dam on the narrow valley must adopt the three-dimensional analysis.
本文采用等效线性化法与开发的三维有限元数值分析软件,对不同河谷条件下的面板应力和加速度进行对比分析,结果表明:河谷越宽,面板应力峰值越大,应力峰值位置逐渐向河谷方向移动缓慢,随着河谷的加宽,河流对坝体两侧的结合力减弱,因此影响较小,因此对狭窄河谷上的混凝土面板堆石坝的动力分析必须采用三维分析。
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引用次数: 0
The Structure Optimization of the Siphonic Bedpan's Flow Channel Based on the Numerical Simulation Technology 基于数值模拟技术的虹吸便盆流道结构优化
Liao Shaowen, Zhang Jianqing, Chen Yong
With the rapid development of computer network technology and the explosive growth of information, how to quickly and effectively help users to access network resources, has become a very important and urgent issue. Traditional keyword search engines due to neglect of the semantics and user preferences and get a lower recall rate and precision, so the search engine performance problems become an important guarantee for a successful search for information. This article will ontology and user preferences by combining an ontology-based personalized search engine model, describes its design and search processes, and the key technologies involved in detailed discussion.
随着计算机网络技术的飞速发展和信息的爆炸式增长,如何快速有效地帮助用户访问网络资源,已经成为一个非常重要和迫切的问题。传统的关键词搜索引擎由于忽视了语义和用户偏好而获得较低的查全率和查准率,因此搜索引擎的性能问题成为成功搜索信息的重要保证。本文将本体与用户偏好相结合,建立了一个基于本体的个性化搜索引擎模型,描述了其设计和搜索流程,并对所涉及的关键技术进行了详细讨论。
{"title":"The Structure Optimization of the Siphonic Bedpan's Flow Channel Based on the Numerical Simulation Technology","authors":"Liao Shaowen, Zhang Jianqing, Chen Yong","doi":"10.1109/ICMTMA.2015.350","DOIUrl":"https://doi.org/10.1109/ICMTMA.2015.350","url":null,"abstract":"With the rapid development of computer network technology and the explosive growth of information, how to quickly and effectively help users to access network resources, has become a very important and urgent issue. Traditional keyword search engines due to neglect of the semantics and user preferences and get a lower recall rate and precision, so the search engine performance problems become an important guarantee for a successful search for information. This article will ontology and user preferences by combining an ontology-based personalized search engine model, describes its design and search processes, and the key technologies involved in detailed discussion.","PeriodicalId":196962,"journal":{"name":"2015 Seventh International Conference on Measuring Technology and Mechatronics Automation","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125625541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
2015 Seventh International Conference on Measuring Technology and Mechatronics Automation
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