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国际图联(ifla)将于明年在京举行国际专题研讨会

图书情报工作 , 1985,
Abstract: ?1986年9月,国际图联(ifla)第52届大会将在日本东京召开。会后,部分与会国外专家将与中国图书馆学会联合举办国际专题研究讨论会。其主题为:《信息时代,图书馆学情报学教育与研究——应用现代化和技术管理的手段》。参加这次研讨会的国外代表与中方代表各约20名。会期五天。在这次会议上将宣读论文。
含微网群并网的配电网纵联保护方案
The Pilot Protection Programmes of Distribution Network Including Microgrid
 [PDF]


Smart Grid (SG) , 2016, DOI: 10.12677/SG.2016.65030
Abstract:
首先,本文分析了微网群并网对配电网保护的影响。微网群并网会引起保护的误动、拒动以及使保护失去选择性,给配电网的保护带来了许多不利的影响。其次,本文提出了一种基于故障分量电流向量比较的允许式纵联保护方案。通过比较方向元件采集的电流相位信息来确定故障线路,并由纵联线路两端保护发送允许信号断开故障线路。该方案充分发挥了允许式纵联比较保护的动作速度快及灵敏度高的优势;无需电压信息,减少了信息交互,提高保护动作的准确性与可靠性;方向元件的应用极大地降低了允许式对通讯通道的要求,提高了允许式纵联比较保护的可靠性。最后,本文搭建Simulink仿真实验模型,分析了在不同故障情况下该方案的可行性,能够有效解决微网群并网给配电网保护带来的问题。
Firstly, this paper analyzes the effect of micro-microgrid-connected group on distribution network protection. Microgrid network will cause the malfunction of protection, refuse and protection to lose selectivity, and bring many adverse effects to the protection of distribution network. Secondly, this paper proposes a new scheme based on the comparison of the current vector of fault component. The fault line is determined by comparing the current phase information collected by the direction element, and the two ends of the longitudinal link are protected to allow the signal to be disconnected. The project makes full use of the allowed type longitudinal comparison protection action speed and high sensitivity advantage; without voltage information, reducing information exchange, improving the accuracy and reliability of the protection action; application of directional element is greatly reduced to allow type communication channels, improving the reliability of allowed type longitudinal comparison protection. At last, this paper builds the Simulink simulation model, and analyzes the feasibility of the scheme under different fault conditions, which can effectively solve the micro network connected to distribution network protection problems.
非线性抛物方程古典解的一个先验估计
A Priori Estimates for Classical Solutions of Fully Non-linear Parabolic Equations
 [PDF]

, 王治国
Pure Mathematics (PM) , 2012, DOI: 10.12677/PM.2012.24038
Abstract: 给定常数\"\",假定非线性算子F几乎处处是局部\"\"的,本文研究了完全非线性抛物方程\"\"的古典解的性质。如果上述方程的古典解的二阶导数有一个连续模ρ,证明了其解的一个内部\"\"估计,这里α是一个仅依赖于非线性算子F的常数。
For the fully nonlinear uniformly parabolic equations\"\" .It is well known that the viscosity solutions are of \"\"if the nonlinear operators are convex (or concave). In this paper, we study the classical solution for the fully nonlinear parabolic equations, where the nonlinear operators F is local \"\"</span
虚拟实验在高校计算机专业实验教学中的应用研究
The Application Research of Virtual Experiment in Computer Experimental Teaching of Colleges
 [PDF]


Creative Education Studies (CES) , 2015, DOI: 10.12677/CES.2015.32004
Abstract:
虚拟实验教学是实验教学的一个重要发展方向。将虚拟实验应用到实验教学中,不仅能完善真实实验、丰富实验项目及内容,还有助于培养学生的创新能力,利于学生个别化发展。本文对虚拟实验在高校计算机专业实验教学中的应用进行了探讨和分析。
Virtual experimental teaching is an important development direction of the experimental teaching. Applying the virtual experiment to the experimental teaching can not only improve the real expe-riment, enrich the experimental project and content, but also help to cultivate students’ innovation ability, conducive to the students’ individual development. Application of virtual experiment in computer experimental teaching is discussed and analyzed in this paper.
本土化的人际自立特质与社会拒绝的攻击性行为的关系
The Relationship between Local-Interpersonal Self-Support Traits and Social Rejection’ Aggressive Behavior
 [PDF]

吕柯
Advances in Psychology (AP) , 2015, DOI: 10.12677/AP.2015.512108
Abstract:
社会拒绝会引发攻击性行为,而人格因素作为社会拒绝和攻击性行为的调节变量受到越来越多的关注。如拒绝的敏感性、自恋、自尊等,这些是攻击性的易感性人格因素,会使攻击性行为增加。本土化的人际自立特质是中国本土化的人格特质。从攻击性的保护性人格因素的角度探讨有别与西方的一些中国人特有的人格特征与社会拒绝的攻击性行为的关系,是非常有必要的。
Society rejection can trigger aggressive behavior. However, not all people can be generated ag-gressive behavior, when they experienced social rejection. Therefore, researchers are paying more and more attention to the personality factors, which are the regulation variables of social rejection and aggression. These personality factors, most of which are vulnerability personality factors such as rejection sensitivity, narcissism and self-esteem, can increase aggressive behavior. The localization of human qualities is a personality ideal emphasized in Chinese culture. It is necessary to explore the relationship between the local human qualities in Chinese and social rejection’ aggressive behavior.
小型化高性能带状线型滤波器的研究
A Research of Bandpass Filter with Miniaturization and High Performance Based on Stripline Configuration
 [PDF]

, 戴永胜
Applied Physics (APP) , 2016, DOI: 10.12677/APP.2016.61002
Abstract:
随着科技的不断进步,现代通信技术对设备的要求愈来愈高,对于微波滤波器这一重要的射频元器件在小型化与高性能方面的要求也越来越严格。而基于LTCC技术的带状线型微波滤波器正好满足了这些需求,逐渐成为了微波元器件研究的热点之一。本文实现了一种基于LTCC技术的小型化高性能带状线滤波器设计的实现方法,工艺上采取的LTCC技术大大缩小了滤波器的尺寸。借助电路仿真并在电磁场三维仿真软件上进行优化,实物测试结果与仿真结果很好的吻合,中心频率为2800 MHz,带宽为200 MHz,在2600 MHz频率上的衰减优于33 dB,在3020 MHz频率上的衰减优于25 dB,尺寸仅为4.8 mm × 4.2 mm × 1.5 mm。
With the continuous progress of technology, modern communication technology has increasingly demand for high-level equipment; the situation of the microwave filter as one of the essential components in microwave module is the same case. Multilayer microwave filter which is based on the LTCC technology meets these requirements and is becoming one of the hot research fields. A method for the section of stripline configuration bandpass filter with miniaturization and high performance is proposed. In order to ensure its miniaturization, this filter is based on the LTCC technology which is advance in the world. Using the circuit simulation and 3D simulation software to optimize and simulate, the measured results of the filter satisfy its performance requirement. The centre frequency of the BPF is at 2800 MHz and its bandwidth is 200 MHz; at 2600 MHz the stop-band attenuation needs to be more than 33 dB and at 3020 MHz is more than 20 dB. Its size of the fabricated filter is only 4.8 mm × 4.2 mm × 1.5 mm.
基于有限单元法的可倾瓦轴承轴心轨迹仿真
Axis Orbit Simulation of Tilt-Pad Bearing Based on the Finite Element Method
 [PDF]

, 刘秀波
Mechanical Engineering and Technology (MET) , 2016, DOI: 10.12677/MET.2016.51004
Abstract:
旨在运用有限单元法求解二维油膜压力,并将其与欧拉方法结合,综合考虑轴颈的惯性力与非惯性力,通过Matlab编程仿真,求得轴颈轴心轨迹。先利用有限单元法求解非定常Reynolds方程,并用雷诺边界条件定解,得到轴瓦二维油膜压力分布,同时在考虑轴颈不平衡力的基础上,建立滑动轴承的轴心轨迹运动方程,并利用欧拉法确定轴颈下阶段状态参数,仿真模拟五瓦可倾瓦轴承的轴心轨迹。通过对轴心轨迹、轴心位移、瓦块最大油膜力的变化验证了该方法的有效性。
The finite element will be applied to solve the Reynolds equation and obtain the 2-D oil film pres-sure. The journal center trajectory motion equation of sliding bearing which is based on imbalance force is established; Euler’s method is applied in calculating the state of journal at next step; then Matlab program is applied to simulate the five pads tilt-pad bearing. The method will be proved by the shaft center orbit, the shaft center displacement and the oil film force.
设计研究在竞争市场中的应用与探索
,
包装工程 , 2015,
Abstract: 目的 对如何在竞争激烈的市场中设计合适的产品进行论述和分析, 揭示如何通过设计研究的方法创造适应特定市场的、 具有竞争力的产品设计。方法 通过对手机使用场景的研究案例解释设计研究的流程和方法。研究如何从现象中寻找数据之间的关联, 并通过这些关联找到真实用户场景从而形成设计洞察力, 进而综合商业模式、 品牌等要素, 找出产品核心的 “种子人群” 并为其建立特定的产品用户角色模型。以此案例的设计流程为样本, 探讨如何通过合理的设计研究方法和流程, 把设计做 “对”。结论 企业能生存并不在于能把产品做得多好, 而在于能把产品做对。把事情做对, 设计“对” 的产品是企业的生存要旨, 也是企业对设计师的基本要求。在竞争市场中 “好” 的设计一定是“对” 的设计,“对” 的设计来自于严谨的设计研究, 以及对研究过程赋予艺术的洞察。没有合理的研究流程不可能有 “对” 的解决方案, 没有艺术的洞察不可能有 “好” 的设计。
基于空间圆拟合的地铁盾构洞门检测方法
The Inspection Method Based on Space Circle Fitting for Shield Tunnel Portal
 [PDF]

蔡士, 董晨
Geomatics Science and Technology (GST) , 2014, DOI: 10.12677/GST.2014.23005
Abstract:

地下铁道盾构施工中需要对始发、接收洞门的位置和姿态进行检测,以确保盾构施工不至于偏离设计线路。洞门位置通过洞门中心坐标来表达;洞门姿态通过洞门所在平面与水平面和设计线路夹角来表达。这些都不能直接观测,需要通过洞门圈的测量,拟合洞门圈所在空间圆来计算得到。本文以天津某地铁工程为例,介绍了基于空间圆拟合的地铁盾构洞门检测方法,及其数据处理过程。
It is necessary to detect the position and posture of originating and receiving portal during subway shield construction, in order to ensure that the shield construction will not deviate from the design line. Portal position is expressed by the coordinates of the center of the portal, while portal posture is expressed by the angle between portal plane and horizontal plane, and the angle between portal plane and design line. These data cannot be directly observed, but they can be indirectly observed by calculating the measuring portal circle. Taking Tianjin subway project as an example, this paper introduces the data processing of subway shield tunnel portal detection based on spatial circle fitting.

地下水系统的复杂性问题
An Issue about Complexity of Groundwater System
 [PDF]

姚足金,
Open Journal of Nature Science (OJNS) , 2013, DOI: 10.12677/OJNS.2013.12004
Abstract:
在介绍复杂性这一科学哲学范畴基础上,作者应用实际资料和文献,论证了地下水系统不是“确定的、有序系统”,而是处在有序、无序之间的“混沌边缘(复杂性)系统”。现今的学理只是对真实地下水系统的一种粗糙的逼近。作者进一步讨论了本体复杂性与认知复杂性两者之间存在纠结关系,并提出理清这类纠结关系的技术途径。
Based on the introduction of the complexity in the category of scientific philosophy, the groundwater system is demonstrated a system at the edge of chaos (complexity) between order and out-of-order, but not a deterministic and order system. The present theories are just a rough approximation for the truths. The entanglement between Ontology complexity and Cognition complexity was elucidated, and the technical way to deal with the entanglement was put forward.
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