寻找交接点--盐城师范学院图书情报中心设计

对旧建筑进行改造、加建，使旧建筑筑与新建筑通过一种创造性的方式结合在一起，具有非常现实的意义和巨大的价值。该文试国通过盐城师范学院图书情报中心的设计探索，讨论在原有校园肌理和新校园规划轴网叠合的基础上，积极寻求新老建筑优化交接的可能性，以简洁理性的方式最大限度的适应环境制约，创造独特的藏阅空间。     

“轻”的南京明城墙前湖段缺口连接体设计--2015年中国建筑院校境外交流优秀作业方案简介

在“南京明城墙前湖段缺口连接体设计”的概念方案中,采用了“轻”作为方案构思的切入点,从建筑轻的形态、轻的建造、轻的形式,轻与光的共生这几主要个方面来解决明城墙在南京前湖公园内的缺口的问题。     

Development of moment-rotation model equations for flush end-plate connections

This paper presents the development of Ramberg-Osgood and Three-Parameter Power model prediction equations for the moment-rotation (M-θ) behavior of flush end-plate connections with one row of bolts below tension and compression flanges. A finite element model (FEM) of the connection region along with the connected beam and column is developed for load deformation analyses, which included material, geometric, and contact nonlinearities. The FEM model was verified with test results conducted and reported for flush end-plate connections in the literature during the 1980s. A matrix of test cases was obtained by varying the geometric variables of flush end-plate connections within their practical ranges. The connection M-θ data for these test cases were obtained by FEM analyses, which were then curve fitted to Ramberg-Osgood and Three-Parameter Power model equations to obtain parameters defining these equations. Finally, prediction equations were developed for parameters of the model equations as functions of geometric variables of the flush end-plate connections.     

评马里奥·博塔1980～1990年的城市建筑设计

通过对建筑自身价值及功能意义的深刻理解,博塔以综合、联结的方式表达了对城市关联的主张。     

Development and validation of a numerical model for buckling of coped beams

The lateral torsional buckling resistance of a beam depends on the support conditions. In structures for buildings, coped beams are often used. A numerical model is developed to investigate the influence of copes on the lateral buckling resistance. The model was verified with laboratory tests. This paper describes the background of the numerical model, the test program and the results of the validation. In a companion paper [Maljaars J, Stark JWB, Steenbergen HMGM, Abspoel R. Lateral-torsional buckling resistance of coped beams. Journal of Constructional Steel Research 2005;61(11):1559-75], the results of a parameter study are presented.     

弯剪作用下螺栓角部连接的性能分析

研究了腹板角钢尺寸对双腹板顶底角钢的弯曲-转动性能影响。研究中采用了多个三维有限元模型,以其几何和材料特性作为影响参数。在这些模型中,所有的连接组件,如梁、柱、角钢及螺栓都采用实体单元建模。构件间的相互作用效应,如螺栓滑移和摩擦,采用表面接触算法建模。为更精确地评估连接件的性能,在栓杆上施加预拉力作为第一荷载。     

Energy Efficient Forwarding Algorithm in Opportunistic Networks

In opportunistic networks,a successful message transmission between node pairs depends on the message size,the transmission speed and the connection duration time.This paper proposes a new message forwarding algorithm to improve the message delivery ratio and reduce the energy consumption.Previous encounter characteristics between nodes are used to estimate future connection duration time using a three point estimation method.Furthermore,the buffer utilization of nodes is used as a weight for the likelihoods to meet destinations according to the hop count of messages stored in the buffer.The simulation results show that the proposed forwarding algorithm achieves higher delivery ratio and less overhead ratio than the other four popular routing protocols.In addition,the proposed algorithm gains a better average residual energy performance among all the compared protocols.     

变压器零序阻抗的特点

分析了影响变压器零序阻抗的因素,介绍了电力变压器零序阻抗的计算方法和特点.     

前向网络隐空间分类超平面的构造

本文讨论单隐层前向网络输出神经元所对应的隐空间分类超平面的构造问题,它直接对应于网络隐层至输出层的连接仪的设计,研究结果表明,网络隐层至支的连接权可均取为＋１,输出神经元的阈值也仅可取为１／２加上几个有限的整数中的一个,从而可以以通过对网络输入层节点至隐节点的连接权的训练,获得有效解决两类问题的前向网络。     

Technical note Best connection scheme of collector modules of thermosyphon solar water heater operated at high temperatures

Large scale thermosyphon solar water heater for high temperature applications is simulated by the use of the Transient Simulation Program (TRNSYS). A daily hot water load of 1500 l/day and 2500 l/day at 80°C was assumed. The hot water is consumed daily from 08·00–17·00 h. A back-up electric auxiliary heater was added to the system in two schemes: first, located inside the storage tank with a thermostat; second, outside the tank connected to the heating system between the tank and the facilities. The collector modules were connected in five different schemes: first, all collectors were connected in series in one line, or collectors were connected in two, three, four or five parallel lines each consisting of many collectors. The results showed that the best connection is when the 20 collectors, comprising the system, are connected in two parallel lines each consisting of 10 collectors. It was found that the monthly and yearly useful energy from the system was higher when the auxiliary water heater was added to the system outside the storage tank.