创造多元互动的行为载体系统——关于新时代高校校园建设的若干思索

新时代为新的高校校园设计提出了许多新的课题 .本文作者尝试在新校区中创造一种多元互动的行为载体系统 ,使校园的非正式交流网络成为校园结构中的重要元素存在 。

企业“以商引商”行为载体研究

本文以江苏双灯纸业有限公司为母体的双灯工业园的发展为研究目标。双灯企业曾是一家老牌的国有企业,利用当地的资源条件,建设双灯工业园。近年来企业集团一直以工业园为载体,倡导"以商引商",走企业集聚之路,最终实现产业集群,提高企业经济效益,增强区域竞争力。本文运用SWOT分析方法,从分析双灯集团"以商引商"行为载体——双灯工业园的发展优势、劣势、机遇和挑战等方面入手,结合相关理论和实践,提出双灯工业园加快发展的总体战略。

中国传统家训活动行为载体透视

中国传统家训主要体现在家庭、家族活动中经常发生的各种各样具体教育行为上。这些鲜活、丰富的教育行为可细分为直接与间接、正面与反面、正向与反向、专门与随机、单一与复合等多种类型,但都在中国传统教育观念指导下发生,与中国古代社会风俗习惯、行为方式等密切相关,是中国古人家教智慧的产物,具有特殊的家教作用。

Analysis of deformation characteristic in multi-way loading forming process of aluminum alloy cross valve based on finite element model

The deformation characteristic in the forming process of aluminum alloy 7075 cross valve under multi-way loading was investigated by numerical simulation method. The results indicate that there exist 4 deformation patterns in the multi-way loading forming process of cross valve, such as forward extrusion, backward extrusion, forward-lateral extrusion and backward-lateral extrusion; one or several patterns occur at different forming stages depending on loading path. In general, the main deformation pattern is forward extrusion or backward extrusion at the initial stage; the main deformation pattern is backward extrusion at the intermediate stage, and the backward extrusion and forward-lateral extrusion occur at the final stage. In order to improve the cavity fill and reduce the forming defects, the lateral extrusion deformation should be increased at the initial and intermediate stages, and the forward extrusion deformation at the final forging stage should be reduced or avoided.

Experimental Evaluation of the Post-ultimate Strength Behavior of a Ship＇s Hull Girder in Waves

Experimental investigations into the collapse behavior of a box-shape hull girder subjected to extreme wave-induced loads are presented.The experiment was performed using a scaled model in a tank.In the middle of the scaled model,sacrificial specimens with circular pillar and trough shapes which respectively show different bending moment-displacement characteristics were mounted to compare the dynamic collapse characteristics of the hull girder in waves.The specimens were designed by using finite element(FE)-analysis.Prior to the tank tests,static four-point-bending tests were conducted to detect the load-carrying capacity of the hull girder.It was shown that the load-carrying capacity of a ship including reduction of the capacity after the ultimate strength can be reproduced experimentally by employing the trough type specimens.Tank tests using these specimens were performed under a focused wave in which the hull girder collapses under once and repetitive focused waves.It was shown from the multiple collapse tests that the increase rate of collapse becomes higher once the load-carrying capacity enters the reduction path while the increase rate is lower before reaching the ultimate strength.

Mechanical characteristics of columnar jointed rock at dam base of Baihetan hydropower station

Irregular columnar jointed structure is a primary irregular columnar morphological tensile fracture. In order to study the geometric features of irregular columnar joints and the new problems in geotechnical engineering, hydraulic and hydropower engineering caused by columnar jointed basaltic mass, Voronoi graph from geometry was introduced to simulate the irregular columnar jointed basaltic mass at Baihetan hydraulic station. Discrete element software UDEC was used to simulate the whole process of rigid bearing plate test. Anisotropic constitutive of columnar joints was adopted to analyze the stress diffusion of rock mass at dam base of Baihetan. The results show that, the compaction property and hysteresis effect are well simulated based on discrete element simulation of Voronoi joint structure by UDEC. Four stages of cyclic loading and unloading process are imaged clearly. The results from in situ rigid bearing plate tests are explicated and the stress diffusion rule of anisotropic body is affected by structure surface. The elements in the stress state of 4-5 MPa are the most, about more than 35% of the total. Appropriate constitutive must be proposed to columnar jointed rock mass with different styles. It has important significance to realize the nonlinear mechanical behavior of irregular columnar jointed basaltic mass.

机械产品执行行为的相似性评估及可变功能再设计应用

执行行为是产品作用于其作业对象或外在环境的一个或多个对外行为。对机械产品的执行行为进行相似性评估可以为产品的设计开发,特别是对基于现有产品的可变功能再设计提供有益支持。本文将执行行为分解为"动作+载体",对动作进行分类,根据动作属性比较其相似度;将载体分为静载体和动载体,通过比较载体属性进行相似度的计算。再根据相似要素建立相似元,利用层次分析法确定不同相似元对执行行为的权重,提出相似度的量化计算公式,为机械产品的可变功能再设计提供设计依据。最后以榨汁机、豆浆机及家用料理机为例,验证所提出方法的可行性。

Adsorption behavior of Me2-CA-BTP/SiO2-P adsorbent toward MA(Ⅲ) and Ln(Ⅲ) in nitrate solution

A porous Me2-CA-BTP/SiO2-P adsorbent was prepared to separate MA（III） from Ln（III） in high level liquid waste （HLLW）. The adsorption behavior of Me2-CA-BTP/SiO2-P toward 241Am（III） and Ln（III） in 0.01 M HNO3-NaNO3 solution was studied. Me2-CA-BTP/SiO2-P showed high adsorption and selectivity toward 241Am（III） over Ln（III） fission products with the separation factor （SF） reaching to 557, 2355, 1952, 1082, 214, 105, 86, 14 for Y, La, Ce, Nd, Sm, Eu, Gd and Dy respectively in 0.01 M HNO3-0.99 M NaNO3 solution. The adsorption kinetics of both Dy（III） and Eu（III） on Me2-CA-BTP/SiO2-P was studied and followed pseudo-second-order rate equation indicating chemical sorption as the rate-limiting step of the adsorption, and the adsorption isotherm of Dy（III） and Eu（III） matched better with the Langmuir isotherm than the Freundlich isotherm with the adsorption amount around 0.22 and 0.20 mmol/g respectively. Thermodynamic study revealed that the adsorption of both Dy（III） and Eu（III） on Me2-CA-BTP/SiO2-P was spontaneous and endothermic processes with a positive entropy at 298, 308, 313 K.

Loading-unloading test analysis of anisotropic columnar jointed basalts

To evaluate the columnar jointed basalts in the dam site of Baihetan hydropower station in southwest China, we developed a basic conceptual model of single jointed rock mass. Considering that the rock mass deformation consists of rock block deformation and joints deformation, the linear mechanical characteristics of the cell (including the elastic joints and the nonlinear mechanical behaviors of the cell) with a combined frictional-elastic interface were analyzed. We developed formulas to calculate the rock block deformation, which can be adapted for multiple jointed rock mass and columnar jointed basalts. The formulas are effective in calculating the equivalent modulus of multiple jointed rock mass, and precisely reveal the anisotropic properties of columnar jointed basalts. Furthermore, the in situ rigid bearing plate tests were analyzed and calculated, and the types of loading-unloading curves and the equivalent modulus along different directions of columnar jointed basalts were obtained. The analytical results are in close compliance with the test results.