城市地质灾害防治规划编制初探

城市地质灾害对城市安全和各项建设的影响巨大，城市地质灾害防治规划是城市总体规划的重要依据和重要组成部分。就城市地质灾害防治规划的目标、内容、技术、深度以及地质灾害防治的信息管理系统的功能和性能要求进行初步探讨。     

Coping With Deficits and Losses in Later Life: From Compensatory Action to Accommodation.

Processes of coping with performance deficits in different domains of functioning were investigated in a 4-year longitudinal study involving a core sample of 762 participants (initial age range: 58-81 years). Compensatory efforts to counteract functional impairments were found to increase up to the age of 70 years. Above that age, a decrease in compensatory efforts was observed that was linked to a decrease in the availability and efficiency of action resources. Contentment with actual performance levels remained stable across the entire age range of the study. Stability of self-evaluations was found to depend on adjustment of personal standards: Scarce action resources were accompanied by a lowering of personal comparison standards and by a downgrading of the importance of the respective domains. Accepting more lenient standards of comparison was found to buffer negative effects of performance deficits on contentment with performance among the older participants. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

低损耗电压频率比控制的变频调速系统性能仿真研究

本文从满足调速范围及最小铜、铁耗总和出发，推导了考虑主磁路饱和的电机数学模型，研究了电压频率比的控制规律，同时对系统脉动转矩进行了准确分析，并利用改进后的电压频率比控制规律，对实际电机进行了调速性能的仿真计算。结果表明，采用电压频率比不为常数的控制，拓宽了调速范围，提高了电机在调速过程中的效率，降低了轻载低速时的转速脉动，对变频器控制规律与电机的配合提供了理论基础。     

锰矿房柱法开采地质灾变与防治对策

房柱法是锰矿地采的主要方法，沉积锰矿的开采技术特征决定了各类改进式房柱法基本控制锰矿浅部开采的地质灾害，但也孕育着以大规模区域性破坏地压活动与地表二次沉陷为特点的深部开采时地质灾难。研究此类开采地质灾害变化发展规律，寻求锰矿可持续发展对策，对于众多重点锰矿已迫在眉睫。     

Risk and regulation: can improved government action reduce the impacts of natural disasters?

From an examination of national policies for risk mitigation, the paper asks what types of laws are successful and should be more widely adopted, and what does not work. Three types of regulations are considered: (1) regulations for constructing new buildings and code enforcement; (2) regulations for intervening in/upgrading the existing building stock; and (3) regulation of the insurance industry. When applied, improved codes can substantially reduce the impacts of natural disasters. However, unnecessary complexity is shown to compromise implementation and enforcement. The widespread destruction of buildings in the earthquakes of Kocaeli, Turkey, in 1999 and Gujarat, India, in 2001 was not due to inadequate codes. Destruction occurred because codes were not generally adopted. Improving the application and enforcement of codes in developing countries are necessary key measures. For the strengthening of existing substandard buildings, some regulations exist and some successful programmes of evaluation and strengthening are in progress. However, lessons from the US experience indicate legislation is needed to back such programmes, and further incentives for action are needed. Several national insurance schemes for natural catastrophe losses (US programmes for flood, New Zealand programmes for earthquake, and French programmes for all catastrophic natural hazards) have considerable potential to stimulate mitigation activity. Ultimately, coercion by government is only part of the answer. The success of any government action depends equally on the development in society of a 'safety culture' in which citizens both understand the risks they face and are prepared to participate in the management of them.     

基于GIS的山洪及诱发灾害的风险分析

山洪及其诱发的泥石流、崩塌、滑坡等灾害突发性强、危害大，应根据区域灾害风险分析的结果，对潜在高风险区进行重点防护。本文在分析灾害成因和风险因素的基础上，采用指标模型法，基于地理信息系统技术对桂东县寨前流域内山洪及其诱发灾害的风险进行了分析，得出灾害高风险区的分布。     

川东北地区气体钻进后的钻井液技术及应用

川东北地区大部分采用气体钻进的井段为上部地层,主要岩性为泥页岩,气体钻进后替入水基钻井液,经常发生复杂情况。分析了气体钻进后顶替钻井液初期容易发生井塌、井漏等复杂情况的原因,介绍了解决川东北地区气体钻进后井壁失稳的钻井液技术对策、技术方案及防止井壁失稳的钻井液工艺技术。在七北101井、东升1井现场应用证明,该工艺技术可行,解决了气体钻进后井壁失稳、严重井漏的技术问题。     

地震数据质疑

地震数据在地震学,地震工程学及其它有关学科方面均有广泛用途,是一种基本数据,故其准确性至关重要.但目前的现状是,地震数据中有一部分的准确性较低,甚至存在差异十分悬殊的情况.经过检索,对一部分地震数据提出修正意见,以提高引用地震数据文献的科学性,使不正确的地震数据停止被引用.     

The Effect of the Surrounding Medium and Its Pressure on Data Obtained in Thermal Diffusivity Measurements Using the Flash Method

This work describes experimental measurements made with a high temperature–high pressure flash thermal diffusivity instrument, using nitrogen, argon, and helium as environment. Data was generated using pressures from vacuum to 30 bar in the temperature range of ambient to 1000°C. NIST SRM 8425 (Poco AXM 5Q, fine grain graphite) was used for the tests. A total of 2.970 data points were obtained, showing a clear and prominent shift in the data, depending on the pressure and the thermal properties of the surrounding gas. Preliminary conclusions drawn from the work indicate the influence of heat conduction, convection, and diffusion through the environmental gas, on the thermal diffusivity results.     

水库诱发地震的力学分析

本文试以三峡工程能否诱发水库地震为例，通过理论分析和计算对水库诱发地震问题进行解答，进而证明三峡工程发生水库诱发地震的可能性不大。