网住一泓清波

我喜欢下雨。更喜欢下大雨，并不是为撑着伞寻找雨巷的悠长，也不是为聆听雨打芭蕉的空灵，而是因为故乡的那条小河在大雨的涤荡后会有一泓清波在奔腾，村里的人也会赶集似的聚拢到小河边，捣衣声、欢笑声、泼水声响成一片，那时河边的风景算是最美的了。

网住太阳

有一只小蜘蛛，它努力地织网，想网住它最想网住的东西——光芒四射、热力十足的太阳。

声表面波传感器在配网设备在线测温中的适用性

配网主设备健康稳定运行是城市电网安全可靠运行的重要保证,其中及时准确掌握开关柜的温度状态尤为重要。首先,对无源无线声表面波温度传感器的原理及其在配网主设备中的安装进行了介绍。其次,对温度传感器进行了性能测试,包括动态响应时延与测量准确性。最后,综合试验数据与故障经验分析了其在配网设备中测温的适用性,并提出一种较为合理的校准方法。

浅淡公路特大桥的桥位控制网测量

文章简要介绍了公路特大桥的桥位控制网测量的基本要求及网形的布设方法,并通过实例进行公式推导及平差计算。

北京商住限购政策落地：个人不得购买

3月26日，北京市住建委官网发布《关于进一步加强商业、办公类项目管理的公告》。

电力物资协议库存计划的辅助决策与分析系统设计

电力设备和物料的计划、采购、储存和配送是电网基建项目运营的基础,物资管理的模型和应用研究能为电网企业项目运营提供有力保障。针对电力物资协议库存计划的需求进行分析,随后进行辅助决策与分析系统功能架构,为兼顾公平和高效的分配目标,根据采购招标的模式、物资种类和需求量以及社会关注度情况制定相应的分配计划规则,构建不同优先级的分配偏差最小化目标,实现物资采购计划全面、逐级和有序分配。

蜘 蛛

四周都是紫黑色的蜘蛛,巨大的毛脚,沾着方才还一同打字报的小同志的血,一颗一颗,串在那细细密密却同钢丝般锋利的毛上,和上了蜘蛛们摄食部位不断分泌的白色的泡沫。阿黑先生把手中的报纸草稿拍到身边一只蜘蛛身上。蜘蛛霎时成了黑色的泥浆,碎壳;连着身体变成黏液拍在地上。突然,黑色黏液中段开始隆起,一点一点,各个地方都膨胀而凝固了起来。

“网”住的与“网”不住的

“月夜残茧”——是我的网名。 迷上网络只是不久前的事，或许是变幻莫测的游戏世界迷住了我，或许是神秘的网络“网”住了我，我只知道，算上今天，这是我独自呆在网吧的第十天。

Effectiveness of Optimal Arrangement of the Residences Operated by Reactive Power Control for a Clustered Grid-Interconnected PV System

There is a danger of power generation efficiency decreasing due to voltage increase when clustered residential PV systems are grid-interconnected to a single distribution line. As a countermeasure, installation of the reactive power control of an inverter at each residence has been considered. However, there are not many types of inverters that can operate reactive power control because there are insufficient effects on a low voltage distribution line with low penetration PV with reactive power control. Therefore, it is necessary to consider how to increase generation efficiency with a lower number of inverters. In this paper, four Japanese standard distribution line structures, for example of a residential area on ＂C1＂, where 2,160 residential PV systems are grid-interconnected, are selected. The optimal setting of reactive power control at each residence is computed on the distribution lines with a greedy method.

Urban Disaster Prevention Shelter VulnerabilityEvaluation Considering Road Network Characteristics

Large-scale national disasters have recently occurred worldwide, causing tremendous damage to life and property. Therefore, urban safety has become a critical issue, and disaster prevention and mitigation are also considered in urban development and infrastructure construction. When earthquake disasters occur, road networks play major roles in rescue activity for responding to urban damage. The urban-disaster prevention spatial system attempts to mitigate hazards by considering shelters, routes for evacuation and rescue and necessary logistics. A literature review shows numerous studies related to a disaster-prevention shelter survey before or after hazards, however, they are less concerned with the reliability of shelter evaluation. This study assesses shelter evaluation by considering road networks. The authors construct 10 selected indices individually related to road networks. Three integrated composite indices are established to explain planned-shelter risks using the Arc GIS diagram of a spatial concept of an urban-planning review process. The relationship between shelters and evacuation/rescue routes is important for disaster-prevention planning. This survey investigates the factors of road networks, fire engine rescue routes, fire station location and road/population density for vulnerability evaluations.

Photo Socialization in Digital Natives

In the following work of research, we shall present the results of a study on forms of digital photographic socialization as carried out by the so-called ＂digital natives＂ in order to explore their competence in managing digital photographic output and cultural practices. This shall be done under the following categories of analysis： snapshot, organization, socialization, reception, privacy, and copyrights in digital photography. The study explores the forms of digital photography production, technical problems of photographic management and the final uses that digital photographers give to their photos in terms of web tools 2.0, mobile telephones and social networks. Digital photography technology, compact cameras, mobile phones with cameras, specialized websites in photography and the lnternet generate new forms of production and emerging styles of digital photographic socialization. The study is carried out using a defined sample of university students, those digital natives who create and use digital photography.

Baseband Design for 5G UDN Base Stations:Methods and Implementation

Baseband design and implementation for micro/pico base stations （mBS） in 5G ultra-dense network （UDN） is studied. Low cost is an essential requirement for mBS baseband in UDN. Digital baseband cost of ASIC/ASIP （Application Specific Integrated Circuit / Instruction-set processor） is of the most uncertainty in roBS system. However. the actual costs and hardware feasibility of the baseband are yet unknown to network deployers and researchers. In this paper, we studied the baseband hardware system design and implementation for low-cost roBS. We analyzed popular baseband algorithms and architectures for both full-digital and hybrid beamforming （BF） for UDN. We then proposed feasible chip-level solutions for the baseband with up to 128-antenna BS system, and estimated their implementation cost. Results show that among lull-digital BF algorithms, zero-forcing is a choice of high performance and low cost; for hybrid BF, 4×32 architecture （32 RF chains） provides good reduction in baseband cost with acceptable performance loss, thus it can be a preferable solution under low cost consider- ation. The proposed system planning method can also be used for the design of other related systems.

The application of the BP neural network in the housing demand model

Real estate is the ＂barometer＂ of the national economy, this paper studies the formation of the current domestic real estate prices and the inner mechanism of the influence factors, using the principal component analysis to determine the composition of the real estate market development index model, and the BP neural network model is established, with specific data analysis which verifies the correctness and practicability of the model.

Advanced Reactive Power Control at Individual Residences to Smooth Energy Loss Fluctuation for a Clustered Grid-Interconnected PV System

Reactive power control can control voltage within the proper range from the power network side or from the distribution generation （PV （photovoltaic）） side. Reactive power control from the power network side is simpler because little controlled object apparatus, such as STATCOM, is required. However, it is difficult to optimize the individual voltages of residential consumers because few data have been obtained by the power network side as compared with the power generation side. Energy loss at each residence with PV is different due to the difference in the grid-interconnection condition, such as distribution line impedance when the same operating voltage is set at all residences. Therefore, in this paper, the authors propose an advanced reactive power control method for residential PV systems in order to optimally control the voltage at individual residences so as to minimize energy loss fluctuation. The effectiveness of the proposed reactive power control is demonstrated by numerical simulation.

Human settlement's social network analysis based on spatial trend surface model:a case study of Chongqing Municipality

Integrated with GIS and remote sensing(RS) technology,a systematic analysis and its methodology for human-settlements social environment has been introduced.This methodology has been called spatial trend field model(STFM).STFM's application history in the field of human-settlements social environment has been discussed at first.Then,some index data models have been created through STFM,which include population density trend field,human activity strength trend field,city-town spatial density trend field,urbanization ratio trend field,road density trend field,GDP spatial density trend field and PER-GDP spatial density trend field.With all above-mentioned indexes as input data,through Iterative Self-Organizing Data Analysis Techniques Algorithm(ISODATA),this paper makes a verification study of Chongqing municipality.The result of the case study confirms that STFM methodology is credible and has high efficiency for regional human-settlements study.