Early Warning System for the Lower Mekong River

Abstract

The Mekong River, one of the largest rivers in the world, is among the few rivers that exist in a nearly natural state, without interference from human influences. The floods of the river are among the major sources of well being for the population, and the annual recurrence of the Monsoon floods is a benefit for the country. However, in some years the benefits are reversed: the floods of the river overflow the banks and inundate vast portions of the land for many weeks. Consequently, it is necessary to adjust human activities to the rhythm of the river. The best people can do is to try to anticipate the flood and to be prepared to live with the floods, both when the floods are beneficial and when they are detrimental. This requires forecasting the flood levels sufficiently ahead of time. However, a mere forecast is not sufficient; an efficient flood management system requires augmenting the forecasting activity with actions. The sum of the preparations for a forecast to make it most beneficial to the people is embodied in an efficient early warning system. A novel approach for obtaining such a system consists of direct interactions of international scientists and regional experts—as has been practiced in an experimental international expert meeting for the Mekong River.     

Funding of applied behavior analysis services: Current status and growing opportunities.

Across the United States, unprecedented numbers of individuals with disabilities are transitioning from mental institutions and developmental centers to community-based settings. As the growing tide of individuals needing community-based services advances, the daunting task of procuring the resources necessary to support them is at hand. Practitioners of applied behavior analysis (ABA), in conjunction with professionals from disciplines such as psychiatry, psychology, medicine, and other specialized ancillary services including occupational therapy, physical therapy and speech and language pathology, have been able to forge beneficial partnerships to maintain the movement to community-based life for individuals with long-term support needs. In this article, we provide an overview of funding options for ABA services at the federal, state, and local levels and for various disability types. We also discuss current and future initiatives to increase funding for ABA services for specific populations who are currently underserved. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

基于集群计算机的保护定值在线校核

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计算DSP预警系统对弹道导弹探测概率的一种方法

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早强型水泥浆液材料的试验研究及在锚固工程中的应用

根据锚固工程锚固体浆液灌注和张拉锁定的作业要求,采用正交试验法对普通硅酸盐水泥浆液进行改性研究。试验确定了氯化钠、硫酸钠、三乙醇胺、水玻璃、纤维、硅灰等水泥外加剂或填料的加量比例,在满足浆液可泵期(15-50m in)的前提下,使结石体2-3d凝期抗压强度提高到15-25MPa,与改性前的纯水泥浆液相比,其抗压强度提高了50%-100%,从而加快了锚固工程施工速度,使支护边坡位移得到及时的控制。工程实践证明,这些经改性的水泥浆液应用效果显著。     

RF-RED:一种速率公平的RED改进算法

为了提高响应流和非响应流之间的公平性，提出了一种基于速率公平的RED改进算法--RF-RED (rate fairness random early detection).该算法在路由器端计算UDP流的平均速率并与TCP友好流速率进行比较，根据比较结果动态调整UDP流和TCP流的最大丢包率，最后使用RED算法分别更新UDP流和TCP流的实际丢包率.通过使用RF-RED算法，UDP流在瓶颈链路上成为TCP友好流，同时瓶颈带宽得到了公平利用.仿真结果验证了该算法的有效性.     

混凝土早期变形与开裂敏感性试验研究

利用国内最新研发的温度-应力试验机针对混凝土早期的变形性能及开裂行为进行了一系列研究,分析了几类典型混凝土早期温度、应力、变形的发展规律,并由此得到混凝土早期弹性模量、热膨胀系数发展规律。研究表明:混凝土的变形发展可以分为早期收缩、膨胀、收缩至开裂三个阶段;混凝土的水化热温升与开裂并不直接相关,应同时考虑混凝土内部温度和应力的发展过程;开裂温度作为综合指标,能够有效评价混凝土的总体开裂敏感性;适当的化学外加剂和矿物掺合料能够改善混凝土的早期变形和力学特性。     

速凝剂对喷射混凝土性能影响试验初析

本文通过喷射混凝土的速凝强度对比和优化试验，扼要地简述了速凝剂对喷射混凝土的影响及其关系曲线分析。     

大型网络终端IT运维安全监控与风险预警系统

目前,国内外终端信息安全预警系统局限于从IDS或者有限监测范畴进行预警,在信息安全决策支持及报警处置方面缺乏必要的技术支撑手段。传统的信息安全预警系统缺陷在于对预警对象、预警威胁评测、风险元素、预警协作机制、处置模式等方面缺少全面统一的管理。文章基于终端安全框架的整体运行监控及管理技术体系,提出一套大型网络终端IT运维安全监控与风险预警系统,对网络信息化安全做全面的监控和预警决策,弥补传统信息安全监控与预警系统缺陷。     

低活性粉煤灰路用性能的试验

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