1954年7月31日腾格里沙漠北7级地震

1954年7月31日,腾格里沙漠北发生7级地震,这是位于蒙、甘交界地区的一次破坏性强震。对这次地震的参数、震源机制、地震序列、地震烈度和灾害进行了研究,讨论了沙漠地震次生和衍生灾害特征,并从动力环境、地震孕育和发生相关地质单元的角度,探讨了成因。在此基础上,提出了保护沙漠地震区生态对防震减灾的现实意义和沙漠地震科学考察的建议。     

Job access, location decision, and the working poor: A qualitative study in the Columbus, Ohio metropolitan area

The critical perspective in job accessibility research argues that access to employment opportunities in an urban area is a complex process. This paper explores the role of individual level location decision-making as it relates to job access. In US metropolitan areas, a worker must consider where to live, where to work, and how they will commute between these locations – the residential–commuting–employment nexus. But limited work has been done to understand how this home-work link influences job access. This research interviews thirty working poor individuals in the Columbus, Ohio metropolitan area. One unexpected finding was the spatially transitory nature of these individuals’ lives – frequently changing both jobs and residences. Negotiating the nexus is a process of spatial decision-making determined by their individual urban mobility. Residential choice is made based on mobility options, not work location. They have diverse job commuting experiences as their mobility options change over time, and those mobility options often dictate their capacity to access existing job opportunities. From the experience of these individuals, Columbus has a strong local economy with many low-skilled higher paying jobs, but a weak public transit system. This article also contributes a qualitative based research perspective to a body of literature that historically under utilizes the approach.     

区域短波通信台网选频的研究

河南省地震局短波通信台网的工作频率被限制在短波的低频段，受干扰严重，中心台又位于市中心，环境噪声电平很高，加之，局网内可用的电台大部分发射功率小、抗干扰性能差。这些因素给通信台网的工作频率选择带来困难。为提高区域通信的质量，在对短波电离层信道传播特性进行分析的基础上，结合本地大气噪声和环境噪声的实际情况，对河南省地震局通信网的选频问题进行了研究，给出了选频的原则和方法，介绍了选频试验的结果和体会。     

沈阳天气预报业务自动化平台的开发研制

为了适应天气预报业务现代化、自动化发展的需要,应用VB,VF,VC,FORTRAN等多种语言,借助于Arcview地理信息系统及其空间分析模块、可视会商视频和9210工程等多项技术,开发研制了沈阳天气预报业务自动化平台,借以提高气象预报工作效率和质量。     

瞬变电磁法在富盛铅锌矿上的应用

简要介绍了瞬变电磁法原理和特点、WDC－2B型瞬变电磁勘探系统及其野外工作方法。在充分考虑富盛铅锌矿地质矿产和物性特征的基础上，重点应用重叠回线装置，研究已知矿体上方的瞬变电磁响应特征及其与地质矿产的联系，提出了在富盛铅锌矿地质物性条件下，瞬变电磁响应模式为“上凹下凸”，同时对矿区外围发现的瞬变电磁响应异常，结合矿区的地质物性资料进行了初步解释。     

集体土地地籍调查外业工作方法的探讨

主要介绍集体土地地籍调查的基本作业流程和具体方法,并对几个关键工序进行了比较详细的阐述,同时也提出了利用航测方法进行采集地物要素的方法和优缺点。     

严重的挫折 重要的启示汶川8.0级地震引发的对地震预测研究的某些科学思考

首先指出汶川8.0级地震前我国地震工作部门地震预测努力遭受严重挫折的主要表现, 阐明这一严重挫折是地震预测面临的三个主要困难: 地球内部“不可入性”、 大地震的“非频发性”和地震物理过程“复杂性”。 但这一严重挫折给人以重要的启示: 面对地震预测这一科学难题, 必须勇于扬弃, 努力处理好地震预测经验的继承与发展的关系; 必须充分发挥地震科技工作者群体的主体作用, 努力推进地震预测理论、 技术的创新; 必须明确地震预测的主要对象, 加强大地震的预测研究。     

主动式集成GPS滑坡监测系统的研制与监测实践

主动式集成GPS滑坡监测系统是GPS技术与电子全站仪技术的高度集成。本文叙述了主动式集成GPS滑坡监测系统的基本原理与工作过程。     

Domesticating home anchored work: Negotiating flexibility when bringing ICT based work home in rural communities

Based on a study of people conducting ICT based work from home in Scotland and Norway, the article analyses how work is negotiated and integrated with non-paid activities in the household and local community. The article fills a gap in that it focuses on rural contexts rather than the urban work life often depicted in literature on flexibility and work. When work is brought home, a domestication process takes place whereby practices of work are negotiated and integrated into everyday life, sometimes changing common perceptions of where and when work is “in” or “out of place”. While working from home is common in rural areas, the study shows that ICT based knowledge related work is still seen as relatively “out of place”. Drawing on the domestication concept, the study shows how community norms about accessibility, interaction and where to be at certain times, had to be renegotiated when this type of work was conducted from home. Imbued in these negotiations were subtly often tacitly communicated moral conceptions on what constitutes good parenthood (in particular motherhood) as well as “real” work. Both men and women reported benefits in terms of combining family and work obligations when working from home, but the tendency was still for traditional gender patterns to be reproduced. Women tended to fit work around the needs of the children, whereas men saw themselves first and foremost workers. Following the concept “doing gender” some challenged these patterns, but did so carefully in relation to the work organisation as well as the community. The impact of communities in regulating home anchored work suggests there may be a need for communities to take on a more active domestication process as more people conduct ICT based work with the home as the base, opening up the moral and normative geographies for when work is “in” or “out of place”.     

云南禄丰—元谋5.1级地震烈度分布及震害因素分析

对2010年2月25日云南省禄丰—元谋5.1级地震现场53个居民点的震害调查资料进行分析,介绍了烈度的分布形状、烈度区面积、范围,分析了局部地形、含煤地层等场地条件对震害异常的影响及各类房屋、生命线工程、水利设施等的震害特征和破坏原因,在此基础上提出了灾区恢复重建的建议。