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Search Results: 1 - 10 of 121527 matches for " 赵小柠 "
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基于投影寻踪回归的虚拟应急物流联盟应急能力评价
Research on Evaluation of Emergency Ability of Virtual Emergency Logistics Based on Projection Pursuit Recurrence
 [PDF]

王庆荣, 杨景玉,
Open Journal of Transportation Technologies (OJTT) , 2013, DOI: 10.12677/OJTT.2013.22033
Abstract:
为了提高应急救援的效率,本文在分析虚拟应急物流联盟协同运作机理,通过投影寻踪得到高维数据在一维空间上的投影特征值,构建了虚拟应急物流联盟应急能力的投影寻踪回归评价模型,在此基础上,设计了混合粒子群优化算法。最后,以实例分析了该模型的客观性和科学性,并采用Matlab软件平台分析计算。
In order to improve the efficiency of emergency rescue, the alliance collaboration mechanism of virtual emergency logistics was analyzed in this paper, and evaluation model of response capabilities of emergency logistics alliance has been built based on projection pursuit regression theory through the projection pursuit to get the projection characteristics of high dimensional data in one-dimensional space value. On this basis, hybrid particle swarm optimization algorithm is designed to solve this model. Finally, a case study has been carried out in order to testify validity of this model and its algorithm by using Matlab to calculating and comparing analysis. This method for response capabilities evaluation of emergency logistics alliance has some reference value.
基于改进差分进化算法的飞行控制律评估方法
陈云翔,李琳,李千,
航空学报 , 2013, DOI: 10.7527/S1000-6893.2013.0230
Abstract: 针对基本差分进化(DE)算法收敛慢、易陷入局部最优的问题,提出了基于混沌理论(CT)与高斯扰动的DE算法,进而通过典型测试函数仿真证明了该方法在收敛速度与全局搜索能力方面均优于基本型和其他改进型DE算法。在此基础上构建了基于DE算法的飞行控制律评估流程与实施步骤。实例表明,该方法克服了传统评估方法的缺陷,可在全飞行包线范围内及所有可预测参数摄动情况下对飞行控制律进行快速、准确的评估。
遗传因素与口腔开胎畸形

遗传 , 1983,
Abstract: 咀嚼器官在完成功能时,上、下颔骨在闭合于正中(牙合)位的静止状态下,某些上颌与下颌相对应的牙齿切缘或(牙合)面分离无(牙合)接触时,称为开(牙合)畸形。开(牙合)牙多分布于前牙区。开(牙合)牙垂直分开5—10毫米以上时,颌骨和颜面比例明显失调,常表现为面下1/3过长、下颌角钝,下颌枝短和开唇露齿等。开(牙合)畸形对人体颜
镍基单晶高温合金DD3制备过程中晶粒演化和选晶行为的EBSD研究
高斯峰,刘林,,新宝,张军,傅恒志
金属学报 , 2011, DOI: 10.3724/SP.J.1037.2011.00144
Abstract: 采用选晶法在改进的Bridgman定向凝固炉上进行镍基单晶高温合金DD3定向凝固实验,研究了选晶法制备镍基单晶高温合金过程中晶粒组织演化和螺旋选晶行为,采用电子背散射衍射(EBSD)技术对晶粒的竞争过程进行分析.结果表明,选晶器引晶段的主要作用是优化晶粒取向,获得取向良好的定向凝固组织.在距激冷板36.1mm处,90%的取向晶粒与轴向偏离小于10°,只有很少的晶粒取向与轴向偏离大于12°.螺旋选晶段的主要作用是确保只有一个晶粒进入型腔,在选晶段沿螺旋方向攀旋一周时就可获得单晶组织.选晶过程中,远离选晶器螺旋通道内侧的晶粒由于受到螺旋通道较强的几何约束,进而被靠近螺旋通道内侧的晶粒所淘汰.螺旋选晶器的狭窄通道对枝晶生长的阻碍作用是实现螺旋选晶的主要原因.
基于多神经网络模型的酯化反应软测量
张宇,,黄道
华东理工大学学报 , 2005,
Abstract: 对模糊C-均值聚类算法加以改进,将系统输入数据进行模糊划分,分成具有几个不同聚类中心的子集;继而引入到多模型建模过程中,针对每个子集建立相应的径向基函数(RBF)网络模型。而全局模型则由各个子模型的输出加权组合。最后通过对聚合釜反应器软测量建模的研究,表明该方法具有拟合精度高和泛化能力强的特点,验证了此多模型建模方法的有效性和快速性。
基于纳米多晶硅薄膜压力传感器胎压监测系统
The TPMS Based on the Nano-Polysilicon Thin Film Pressure Sensor
 [PDF]

, 于洋, 陈静, 晓锋
Journal of Sensor Technology and Application (JSTA) , 2015, DOI: 10.12677/JSTA.2015.33007
Abstract:
本文给出纳米多晶硅薄膜压力传感器,由方形硅膜和四个纳米多晶硅薄膜电阻构成惠斯通电桥结构组成,采用MEMS技术在<100>硅片实现传感器芯片制作。当工作电压VDD = 5.0 V时,传感器灵敏度为0.15 mV/kPa,准确度为0.39 %F.S.,可实现轮胎胎压测量。根据胎压传感器特性和NRF24L01无线通信技术,实现胎压监测系统设计。通过无线模块实现实时数据传输,该系统可实现对轮胎胎压的实时监测,保证车辆安全。
This paper presents the nano-polysilicon thin film pressure sensor, which consists of four nano- polysilicon thin film resistances fabricated on the silicon membrane of C-type silicon cup, and the resistances make up the Wheatstone bridge structure. The chip of sensor is fabricated by micro electromechanical system (MEMS) technology on a <100> silicon wafer. When supply voltage VDD = 5.0 V, the sensitivity is 0.15 mV/kPa, and the accuracy is 0.39 %F.S.; tire pressure measurement can be realized. According to the characteristics of tire pressure sensors and the NRF24L01 wireless communication technology, the Tire Pressure Monitoring System (TPMS) is designed. By transmitting data timely through the wireless module, this system can realize the wireless and real-time monitoring, so as to ensure the safety of the vehicle.
一例陈旧肝组织用于法医物证鉴定
A Case of Corrupt Liver Tissue Used in Forensic Evidence Identification
 [PDF]

杨朔, 姜焰凌,, , 张寿勋, 卢晓筱, 黄仁武, 夏生, 钟树荣
Open Journal of Nature Science (OJNS) , 2019, DOI: 10.12677/OJNS.2019.74037
Abstract: 近年来,法医物证鉴定在刑侦工作中的应用范围逐渐扩展,刑侦工作的复杂性决定了法医物证鉴定的困难性,疑难案件中检材数量和类别有限,加大了法医物证检材阳性检出的难度。本例案件是用冰冻保存长达两年之久的毒化检验肝组织留样与陈旧肋软骨组织进行DNA同一认定鉴定,同时利用陈旧肝组织与活体血样进行尸源认定鉴定。采用QIAamp? DNA Investigator Kit试剂盒对DNA进行纯化,得到了良好的分型结果,为案件的侦破提供科学可靠的依据。
In recent years, the application scope of forensic evidence identification in criminal investigation has gradually expanded, and the complexity of criminal investigation has determined the difficulty of forensic evidence identification. The number and types of samples in difficult cases are limited, which makes it more difficult to detect the positive detection of forensic evidence. In this case, we used the poisoning test liver tissue sample which was preserved by cryopreservation for up to two years and old rib cartilage tissue for DNA identification. At the same time, the corrupt liver tissue and living blood samples were used for identification of the cadaveric source. DNA purification using the QIAamp? DNA Investigator Kit, got good typing results, providing a scientific and reliable basis for the detection of cases.
对《公共浴室卫生标准》的几点建议
冯帆,李晓
中国公共卫生 , 2002, DOI: 10.11847/zgggws2002-18-01-45
Abstract: ?1996年4月国家技术监督局和卫生部联合发布GB9665-1996代替GB9665-88(即《公共浴室卫生标准》,为强制性国家标准,为卫生监督部门的执法工作提供了技术依据.在基层卫生监督部门执行此标准过程中,发现GB9665-1996较GB9665-88虽然有其先进性和科学性,但仍有一些条款存在不尽完善之处.此文提出一些初步的建议,与大家共同探讨.
检验公用物品霉菌的两种方法比较
李晓,冯帆
中国公共卫生 , 2001, DOI: 10.11847/zgggws2001-17-05-47
Abstract: ?日常对旅店业、公共浴室业的公用物品拖鞋、桑拿(蒸汽)座,需要进行霉菌检测.目前,尚无国家标准检验方法.我站于1998年10月~1999年10月对辖区内165单位次的296份上述样品,用两种不同方法进行霉菌检验,对结果进行了比较分析.现将检验方法及结果报告如下.
复杂网络视角下国际贸易研究综述
Review of International Trade:The Complex Network Approach

吴宗,樊瑛
- , 2018, DOI: 10.3969/j.issn.1001-0548.2018.03.023
Abstract: 对国际贸易网络的相关研究进行了综述。首先从国际贸易经典网络模型、适应度模型、双曲模型、流网络模型、多层贸易耦合网络模型和二分网络模型等6个模型,介绍了国际贸易网络的建模方式;然后从国际贸易网络统计特征、社团结构、演化模型和动力学行为等方面,梳理了国际贸易网络结构与功能的相关研究,最后总结了对国际贸易网络的研究并探讨了未来值得研究的课题。
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