农村生活污水处理发展现状与建议

基于国家对农村环境治理以及人居环境改善的重视,以农村生活污水处理为分析对象,首先概述了农村生活污水的特点与来源,接着分析了当前普遍使用的农村生活污水处理技术,最后阐述了农村生活污水处理的困境与对策,为农村生活污水处理研发新的工艺,大力推广简单工艺处理技术,同时还需要推动农村生活污水处理的规范化,因地制宜,针对现场实际情况制定适合的工艺路线,以便提高农村生活污水处理的质量,改善村民的居住环境,实现美丽乡村战略有着重要意义.     

农村生活垃圾资源化利用的分类收集设想

随着农村生活垃圾数量的剧增和农村环境污染的日益严重，如何解决以及采取何种方式来解决农村生活垃圾问题已成为一个急需解决的课题。分类收集是农村生活垃圾资源化利用的前提，文章着重分析了农村实施生活垃圾分类收集的基础及其现实意义，并提出了一些生活垃圾分类收集的设想。     

我国农村生活污水处理技术研究与探讨

农村生活污水的随意排放对环境产生了许多不利影响,因此,需要加强对农村生活污水处理技术的研究。从农村生活污水的特点、处理现状、处理技术以及对农村生活污水处理4个方面提出的建议进行了分析探讨,以促进农村生活污水的高效处理,提高处理的质量。     

运城市农村环境综合整治成套技术研究

根据运城市农村生活污水产生情况、农村生活垃圾产生情况、畜禽养殖污染现状等农村环境现状,在2011年-2013年农村连片整治示范的基础上,研究适合运城市农村地区的生活污水处理技术、生活垃圾处理技术、畜禽养殖污染处理技术和农村环境整治长效机制,提出了运城市农村污水处理技术模式、农村垃圾处理技术模式、农村畜禽养殖污染处理技术模式和农村环境整治长效机制的农村环境综合整治成套技术.     

山西省农村生活污水整治模式及治理技术研究

农村水环境治理是农村环境改善的关键问题,对农村环境质量的改善、农村人居环境的提高具有非常重要的意义。阐述了山西省农村生活污水处理模式,研究提出了适宜山西省农村生活污水特点的9种治理技术,并总结出相关工艺技术参数,期望为农村生活污水治理工作提供技术依据。     

农民工进城务工对农村家庭生活能源消费量的影响——基于陕西省的实证研究

随着农民工进城务工数量的增加,农村家庭生活能源消费也发生了变化,为探究其中的机制,本文基于陕西省农村地区"劳动力转移与农村生活能源"的调查数据,应用多元线性回归模型与Tobit回归模型分析农民工进城务工对农村家庭生活能源消费量的影响。研究发现:农民工进城务工收入显著提升了农村家庭液化气消费量和电力消费量,同时显著降低了生物质能源的消费量;农村家庭基本特征、农村家庭经济特征、农户消费偏好及区域等因素对农村家庭生活能源消费量也具有重要影响。农民工进城务工显著优化了我国农村生活能源消费结构,提高其生活水平,对解决我国目前"人民日益增长的美好生活需要和不平衡不充分的发展之间的矛盾"具有重大意义。     

自然通风型好氧人工湿地在农村生活污水处理中的应用

随着经济的发展,农村的城镇化,农村生活用水方式发生了较大改变,生活污水排量激增。近几年浙江省各县市开展了农村生活污水连片整治工作,进行了多种人工湿地处理方式的尝试,取得了一些成果。但也存在一些问题：     

浙江省农村生活垃圾处理技术探讨

<正>随着人了生活水平的不断提高,我国农村生活垃圾的产生量和排放量正在逐年增加,其性质和特点也因为地区的不同而呈现出较明显的差异。本文根据浙江省农村生活垃圾的性质和特点以及现行的农村生活垃圾处理技术,提出适合于浙江省农村生活垃圾应用的处理技术,供大家探讨。     

山西省农村生活垃圾治理模式研究

为解决山西省农村地区生活垃圾带来的环境问题,通过对三种治理模式进行分析,对比了其建设费用与运行费用,提出了最适宜山西农村地区的生活垃圾治理模式,为山西农村地区生活垃圾治理提供建议.     

农村生活污水治理研究

本文了分析当前我国农村水环境污染管理现状,并对生活污水的来源和成分进行了分析,指出当前农村生活污水管理中的具体问题,并针对农村水环境治理提出建议.     

Potential method in the theory of thermoviscoelastic mixtures

In this article, the linear theory of binary thermoviscoelastic mixtures is considered and the basic boundary value problems (BVPs) of steady vibrations are investigated. Namely, the fundamental solution of the system of equations of steady vibrations is constructed explicitly and its basic properties are established. Green’s second and third identities are obtained and the uniqueness theorems for classical solutions of the internal and external basic BVPs of steady vibrations are proved. The surface and volume potentials are constructed and their basic properties are given. The determinants of symbolic matrices are calculated explicitly. The BVPs are reduced to the always solvable singular integral equations for which Fredholm’s theorems are valid. Finally, the existence theorems for classical solutions of the internal and external BVPs of steady vibrations are proved by the potential method and the theory of singular integral equations.     

自然通风技术研究方法及工具

目前自然通风主要有三种研究方法:简单的理论分析法、实验法和数值模拟法。本文概括介绍了后两种方法的研究现状,并对它们进行了分析比较,提出各种方法的适用场合。在数值模拟法中还介绍了几种可用于分析自然通风系统的通风特性和热特性的常用工具软件,对各自工作原理和应用特点进行了比较,并对使用方法和应用场合提出了建议。     

Study of contact melting inside isothermally heated vertical cylindrical capsules

Close-contact melting processes of phase change material (PCM) inside vertical cylindrical capsule are studied. PCM are heated by the capsule isothermally at the bottom and side. The theoretical formulas of the melting rate and thickness of liquid layer during the heat transfer process are obtained by analysis, which are convenient for engineering predictions. Finally, the factors that affect melting are discussed, and conclusions are drawn.     

纤维喷涂工艺在退火炉中的应用及前景

综述了纤维喷涂工艺的原理和特点以及对辅助工艺的要求，并与其它工艺进行经济技术指标的实例对比。重点介绍了纤维喷涂工艺在退火炉中的应用及前景。     

Hamiltonian Approach to Analytical Thermal Stress Intensity Factors—Part 2 Thermal Stress Intensity Factor

The equations of thermoelasticity are first rewritten in Hamiltonian form where the variables are separable in spatial coordinates. The symplectic eigensolutions satisfying the boundary conditions along the crack faces are solved analytically from the homogeneous equations. The loading and the particular integral are expanded in the eigensolutions and the coefficients are determined by the geometric boundary conditions excluding the crack. The thermal stress intensity factors are obtained and the behavior of the thermal stress intensity factors under arbitrary thermal loading is investigated.     

Bioclimatic rehabilitation of existing building stock

Bioclimatic rehabilitation of existing building stock can result in significant energy savings. Different rehabilitation measures are available, but low-cost measures are mostly in use. In Belgrade those are closing of balconies and loggias and annex of attics built in purpose of dwelling. Those are measures that tenants were able to realize in personal arrangement and measures that created benefits for the community. The review of rehabilitation measures is given and measures that are mostly in use in Belgrade are analyzed in the paper.     

Experimental investigation of hydrogen storage in single walled carbon nanotubes functionalized with borane

Single walled carbon nanotubes (SWCNTs) dispersed in 2-propanol are deposited on the alumina substrate using drop cast method. The deposited SWCNTs are characterized using the techniques SEM, EDS and FTIR. Then the SWCNTs are functionalized with BH₃ using LiBH₄ as the precursor. FTIR, XPS and CHNS techniques are used to confirm the functionalization. The functional groups are identified from FTIR studies. The various elements present in the functionalized SWCNTs are identified from XPS and CHNS studies. The functionalized samples are hydrogenated and the hydrogen storage capacity of these samples is estimated using CHNS studies.     

机车制动监测系统中传感器结构的研究

对机车制动监测装置中的传感器作了较深入的研究,设计出了适用于机车制动状态检测的开关型传感器和压力传感器。给出了几种传感器的设计安装方法,并对各种传感器结构特点作了比较。     

US nuclear energy policy Provision of funds for decommissioning

The five recognized methods of decommissioning nuclear power plants are reviewed, and are linked with US nuclear regulatory policy. Although over 60 US nuclear reactors have been decommissioned since 1960, none have been large-scale commercial facilities. Costs of the decommissioning alternatives are estimated, but are acknowledged to be highly tentative and uncertain. Five methods of providing funds for decommissioning and the actual practices of US electric utilities are analysed in terms of the policy issues they present. Revenue bonding and sinking fund approaches are argued to be the soundest means to recover decomissioning uncertainties surrounding decommissioning are considered.