Abstract:This paper investigated the dynamic effects on the interaction of pile-supported structures subjected to lateral seismic load at layered-soil media.A preliminary method was proffered with the combination of present aseismatic design codes and the concept

Abstract:A simple three-dimensional model was proposed for the linear interaction analysis of a fully coupled soil-pile-structure system subjected to the harmonic shear seismic wave.Both piles and structure were simplified as a beam model.Then,the amplitude amplif

Abstract:Using the component method introduced in Eurocode3 and Eurocode4, and aiming at the existing methodical shortage of end-plate beam-column composite joint initial rotational stiffness analysis, we proposed a detailed calculating procedure for the end-plate

Abstract:This paper investigated the dynamic stability of arch with the geometrical imperfection subject to the external excitation.First,considering the coordinate deviations of finite element nodes as the random variables,the conditional covariance matrix was de

Abstract:Based on traffic simulation technique,bus priority of intersection using pre-signal was studied.Aiming at pre-signal design,an improved method was presented and computer simulation was carried out.An intersection was selected to identify the reasonable ra

Abstract:Equilibrium differential equation and boundary condition were deduced first, adopting variation principle, and then the analytic generic solution of the deflection of dowel steel was obtained. The results near to real condition were gained through example

Abstract:Based on the basic assumption and catenary formulation of cable structure,the corresponding relationship between end forces and the geometrical shape of the cable structure was obtained through the analysis of the cable element with uniform load along the

Abstract:Considering the deficiencies of general multi-step predictive method based on GM(1,1)(grey model),a condition prediction method based on metabolic filling GM(1,1) was proposed.First,the multi-step predictive value was computed by filling idea after the or

Abstract:The vertical model of vehicle dynamics and the virtual model of road input were deduced in pseudo-excitation method.The correlation between time and spatial frequencies was derived.The transient Power Spectral Density(PSD) of vehicle in nonstationary rand

Abstract:This paper designed the synthetic automation monitoring systems based on a hierarchical distributed s-tructure,according to the structural characteristics of electric power network and the requirement of the transformer subs-tation of a smelting plant in

Abstract:A new unconstrained skew detection method based on wavelet decomposition and particle swarm optimization(PSO) was proposed.Document skew detection is necessary for most document analysis system.The scanned document images were firstly decomposed using dis

Abstract:An acoustic emission(AE) test rig with signal acquisition virtual instrument system has been developed for engineering ceramics high speed deep grinding.By using the AE test rig,the AE signals of the high speed deep grinding of partially stabilized zircon

Abstract:利用OM,XRD和TEM等方法研究了喷射沉积-挤压-轧制SiC颗粒增强FVS1012(SiCP/FVS1012)薄板的微观结构以及退火对该复合材料硬度的影响.结果表明,本工艺制备的SiCP/FVS1012薄板具有优异的高温力学性能,在315℃时,σb=308 MPa,σ0.2=290 MPa,δ=5.69%;在415℃时,σb=201 MPa,σ0.2=182 MPa,δ=3.65%.微观组织分析表明:类球状细小弥散的Al12(Fe,V)3Si相的生成是该复合材料具有优异高温力学性能的主要原因,此外,SiC颗粒的加入对提高该复合材料的高温力学性能也有重要作用.

Abstract:合成了4种相对分子质量和官能度各不相同的聚酯多元醇,并与MDI反应合成了端羟基及端异氰酸基预聚体,通过红外光谱对其结构进行了表征.研究了不同端羟基化合物与端异氰酸基化合物所构体系的粘接性能、热老化性能及热失重情况,结果表明该体系室温剪切强度为35~40 MPa,80℃,100℃和200℃剪切强度可达12~16 MPa,6~8 MPa和3~5 MPa,90°剥离强度为5~7 kN/m,T5最高为286℃,加入石棉后体系的高温剪切强度及耐热老化性能都得到提高.

Abstract:The process of electroplating Ni-B alloy on the surface of carbon fiber was investigated. The results showed that the Ni-B deposit performance and deposition rate were evidently affected by pretreatment, bath composition and electrodeposition parameters.

Abstract:Considering the characteristics of multi-objective,multi-index and coexistence of certainty and uncertainties,set pair analysis theory was introduced into wastewater treatment process design optimization.The concept of structural function,that is,identity

Abstract:A new defence method of Distributed Denial of Service(DDoS) based on Packet Funneling was proposed with History-based IP Filtering.The defence method located at the edge router filters the packets sent to victim through AIP table and Waiting Matrix(WM).Th

Abstract:The threats caused by IM worms were analyzed,the solutions in existing applications and studies were analyzed and their strong points were made use of.Then a series of strategies to keep away worms in IM system were put forward. In these strategies,the PK

Abstract:The calculation formulae for period distribution of q-ary BCH codes with designed distance 7 were obtained based on the discussion of cyclotomic cosets and property of cyclotomic polynomials: the period distribution is q's power.When the period was unequa

Abstract:To test the effect of the capital regulation on the capital ratio and risk of Chinese commercial banks,we constructed a simultaneous model based on the previous work abroad.Based on the model and using the two-stage least squares procedure(2SLS),we analyz