静力触探在海底土层工程性质评价中的应用研究

随着海底隧道建设、海岸带开发、港湾建设和其他海洋资源的开发,静力触探技术(CPT)作为原位测试技术的一种,在海洋工程地质勘查中发挥着越来越重要的作用。现场进行静力触探试验以及室内试验,分析某海上场址工程中土的物理、力学性质的特点,通过对比分析对土层的抗剪强度、灵敏度和超固结比(OCR)进行评价。CPT测试数据显示当地层发生变化时,锥尖阻力(qc)和孔隙水压力(fs)会发生较大变化。对于较硬的黏土层,静力触探结果可能出现较大误差,土性参数评价时需要予以剔除。使用CPT测试数据对该场址地基土不排水抗剪强度、灵敏度和超固结比(OCR)进行评价时,其各自参数分别为:Nkt取15,Ns取6以及k值取0.3时,CPT测得不排水抗剪强度、灵敏度和超固结比与室内试验吻合较好。     

上海世博会园区规划设计程序的科学设计

中国2010年上海世博会是中国首次举办的综合性世博会,会场选址于市中心区边缘卢浦大桥两侧的黄浦江两岸滨水地区.其规模和规划建设难度不仅为历届世博会之最,也是人类大都市中心区改建历史上从未有过的.     

F_2上的四次剩余码

对于给定的奇素数p,定义了F2上码长为p的8种四次剩余码,研究了这8种四次剩余码之间的关系,给出了四次剩余码的码字重量、极小汉明距离一些好的性质,给出了四次剩余码的幂等生成元和对偶码的生成多项式.     

环F_2+uF_2+u~2F_2上线性码的支重量分布

研究了一类链环上型为8k的线性码的支重量分布与Hamming重量分布的关系,利用MacWilliams恒等式建立了该链环上线性码的支重量分布与其对偶码的支重量分布之间的关系.     

Improved ant colony optimization algorithm for the traveling salesman problems

Ant colony optimization (ACO) is a new heuristic algorithm which has been proven a successful technique and applied to a number of combinatorial optimization problems.The traveling salesman problem (TSP) is among the most important combinatorial problems.An ACO algorithm based on scout characteristic is proposed for solving the stagnation behavior and premature convergence problem of the basic ACO algorithm on TSP.The main idea is to partition artificial ants into two groups: scout ants and common ants.The common ants work according to the search manner of basic ant colony algorithm,but scout ants have some differences from common ants,they calculate each route's mutation probability of the current optimal solution using path evaluation model and search around the optimal solution according to the mutation probability.Simulation on TSP shows that the improved algorithm has high efficiency and robustness.     

Near-field surface movement during the Wenchuan M s8.0 earthquake measured by high-rate GPS

Based on high-rate (1 Hz) GPS data from the Sichuan GPS Continuous Observation Network on the footwall of the Longmenshan Fault, we have characterized the near-field surface movement process during the 5.12 Wenchuan Earthquake. Results show that the maximum deformation near the fault is larger than the deformation set. Stations on the northern segment of the fault moved towards the epicenter first, and then turned toward the vertical orientation of the fault. Deformation of stations on the southern segment is smaller and recovered. The initial motion at all of the stations was downward followed by periodic up and down movements. Comparing the displacement from high-rate GPS and accelerograph data, we can see that they are consistent prior to the arrival of the principal shock, but afterwards a 10 cm difference is found, even though they are synchronized and in phase. More work is yet to be done to explain this. This is the first time that actual the real near-field surface movements of an earthquake of M >7.0 have been determined in china. These measurements are therefore of high value for studies of surface rupture processes and the analysis of seismic wave travels paths in this region.     

一种新的四元阵列融合声源识别方法

针对声源识别中观测模型线性化误差,信号特征参数提取依赖于经验分析阈值判断而造成信息丢失的问题,本文从信号观测模型、预处理、特征提取与分类识别、半实物仿真试验等方面,提出了一种新的四元阵列融合声源识别方法。首先在系统坐标系下建立了四元阵列有色噪声环境下的观测模型;其次基于EMD理论,给出了四元阵列EMD融合算法,有效抑制了高频信号的干扰;再次基于MFCC-DTW方法,设计了阵列信号特征提取与分类识别算法;最后通过半实物仿真试验,并与相关研究基础对比,分别验证了本文提出的EMD融合算法及阵列信号特征提取与分类识别算法的有效性。     

论高校后勤社会化过程中法治与德治的关系

高校后勤社会化法治与德治是治理新型高校后勤的两个重要手段。后勤社会化法治与德治的实质在于将后勤社会化改革、经营、服务、管理的政策、措施以及思想、行为纳入法律轨道和道德规范体系,做到有法可依、有法可用,有德可循、有德可守;有法必依、有法必用,有德必循、有德必守。通过法治与德治的贯通、互动,确保后勤社会化改革、运作的稳步推进,确保后勤社会化的“育人”方向。     

灰色系统理论及其在纺织上的应用

本文对灰色系统理论进行了概述，扼要地介绍以关联分析，灰色建模与预测，灰色评估技术及其在纺织工业中的诸多应用，并就灰色决策，灰色控制及其在纺织工业中应用的可能性做了简要讨论旨在促进灰色系统理论在纺织工业中的进一步推广与应用。     

织物风格基本物理力学量的灰色关联分析

运用灰色系统理论，对川端等提出的１６个织物风格基本物理力学量进行了灰色关联分析。结果表明，对织物风格影响显著的基本物理力学只有９个。