特殊气候条件下的水泥混凝土路面施工

总结了水泥混凝土路面在特殊气候条件下的施工技术措施。     

略论区域经济发展战略--兼论黄埔区经济发展战略

区域经济发展战略重点在于改善生产力布局。广州市黄埔区经济发展战略应立足于本地区，加强与相关经济中心的优势互补，加强区内已有工业的经济拉动效应，强化集聚效应，形成区域性的中心，凸显海港新城的区位优势。     

用生石灰处治过湿粘土施工工艺

从用生石灰处治过湿粘土的强度机理和具体的施工工艺两方面 ,结合实际施工经验 ,认为重点应从降低过湿粘土的含水量等施工工艺方面对过湿粘土施工进行控制。     

柴油机扩缸改造与经济寿命分析

从分析柴油机的折旧规律、维修费用规律以及燃油耗费用规律入手，对195柴油机的经济寿命和更新周期问题进行了分析。     

INTELLIGENT TOOLS FOR PREDICTING ANXIETY OF ALZHEIMER'S PATIENTS

Objective To predict the incidence of anxiety in Alzheimer's disease (AD) patients by using machine-learning models. Methods A large randomized controlled clinical trial was analyzed in this study, which involved AD patients and caregivers from 6 different sites in the United States. The incidence of anxiety in AD patients was predicted by backpropagation artificial neural networks and several machine learning models, including Bayesian Networks, logistic regression, ADTree, J48, and Decision table. Results Among all models for predicting the incidence of anxiety in AD patients, the artificial neural network with respectively 6 and 3 neurons in the first and second hidden layers achieved the highest predictive accuracy of 85.56 %. The decision tree revealed three main risk factors: "caregiver experiencing psychological distress", "caregiver suffering from chronic disease or cancer", and "lack of professional care service". Conclusion The unique ability of artificial neural networks on classifying nonlinearly separable problems may substantially benefit the prediction, prevention and early intervention of anxiety in Alzheimer's patients. Decision tree has the double efficacy of predicting the incidence and discovering the risk factors of anxiety in Alzheimer's patients. More resources should be provided to caregivers to improve their mental and physical health, and more professional care services should be adopted by Alzheimer's families.     

Improved Sinusoid Analysis and Post-Processing in Parametric Audio Coding

This paper proposed improvements to the low bit rate parametric audio coder with sinusoid model as its kernel. Firstly, we propose a new method to effectively order and select the perceptually most important sinusoids. The sinusoid which contributes most to the reduction of overall NMR is chosen. Combined with our improved parametric psychoacoustic model and advanced peak riddling techniques, the number of sinusoids required can be greatly reduced and the coding efficiency can be greatly enhanced. A lightweight version is also given to reduce the amount of computation with only little sacrifice of performance. Secondly, we propose two enhancement techniques for sinusoid synthesis: bandwidth enhancement and line enhancement. With little overhead, the effective bandwidth can be extended one more octave ; the timbre tends to sound much brighter, thicker and more beautiful.     

大跨度拱桥减震分析

以西藏尼木大桥为研究对象,结合该桥型特点,采用大型通用软件对其进行了模态分析和动力计算.通过模拟地震响应得到该桥的反应特性,由此采用调谐质量控制器(TMD)对该桥进行受控分析.采用振型贡献率确定受控模态,在获取TMD系统的优化参数后将其模拟入有限元模型中,并最终通过时程分析验证了TMD运用于拱桥被动减震控制的有效性.     

澜沧江-湄公河地理信息系统设计与数据库建设

澜沧江-湄公河是一条重要的国际航道，具有重要的战略意义，将地理信息系统（GIS）技术引入到该河流航道的航务管理，不仅能够提高该航道的运输效率以及航道管理人员的决策与管理水平，同时还能够实现港口航道管理的科学化与信息化。文章首先阐明了建立澜沧江-湄公河地理信息系统（Lancangjiang ＆Meigonghe Geographic Information System，LMGIS）的重要意义，并在此基础上重点探讨了该系统的总体设计以及系统数据库的建设。     

湖南省内河船型标准化研究

阐述了湖南省内河船型标准化研究的目的和意义,概述了湖南省内河航运发展急需的舱口货船、集装箱船和客渡船标准化研究的主要成果,为推进湖南省内河船舶标准化工作提供指导。     

造船企业供应链管理系统应含主要模块研究

文章讨论了一般情况下造船供应链管理系统的模式,分析了现代造船模式下造船ERP系统和造船CIMS的特性,明确了造船供应链系统、造船ERP系统与造船CIMS三者之间的关系,初步探讨了中小造船供应链系统应含的主要模块,这对在造船企业中进一步推行供应链管理有一定意义。