浅谈屋面防水工程质量控制

正屋面防水是一个完整的概念,它必须与排水相结合,只有在不积水的情况下,屋面具有可靠性和耐久性,要做到雨过无水。屋面防水工程是房屋建筑的一项重要的工程,由现阶段实行的《建筑工程质量管理条例》中规定屋面防水工程保修期为5年,便可看出屋面工程质量的重要性。屋面施工质量的好坏、优劣关系到建筑物的使用寿命,还会直接影响人民生产活动和正常生活。近几年来,卷材在新型防水材料中日益占据重要的地位。如何提高屋面防水的施工质量,克服质量通病、保证房屋不漏水,是广大建筑工作者研究的一个新的课题。     

城市屋顶绿化层状结构及其绿化系统研究

城市屋顶绿化是在原有城市建筑屋顶结构基础上,铺设可使植物正常生长,并不损害建筑结构的层状结构。层状结构需要满 足屋顶承重、排水、屋面防水等条件,是利用建筑物顶部空间进行绿化的园林工程技术,旨在解决城市绿化空间不足、绿化成本过 高等环境问题。结合大量城市屋顶绿化系统工程实例,对屋顶绿化的层状结构及其材料进行深度分析,目前成熟的城市屋顶绿化 系统基本保障了植物生长条件及防水、排水、蓄水、过滤和隔根等作用,成功地解决了因屋顶绿化分层安装繁琐及其可能会出现上 下层不兼容的问题,并针对不同屋面进行不同的城市屋顶绿化系统安装,保证安装方便、降低成本,为未来城市屋顶绿化系统及其 材料、新技术等应用提供了广阔的发展前景。     

基于微波雷达传感器的设备室漏雨自动监测系统

为进一步保障电力设备室的防水安全,基于传感器技术,提出一种屋面水位监测系统,以对电力设备室的漏雨情况进行监测。其中,监测系统主要设计了无线传感器单元、无线通信网络以及水位自动采集三个主要模块,并使用基于EMD的小波熵阈值去噪算法对采集到的水位数据进行去噪处理,以进一步提升数据的准确性。实验结果表明,设计的水位监测系统能够对屋面水位进行精确监控,同时变化趋势描述的准确性较高;与改进前的去噪方法相比,改进后的EMD去噪算法能够实现更好的去噪效果,在信噪比为-1、5、10 dB的噪声条件下去噪结果的均方根误差分别为7.15,3.33,1.55。以上结果表明,设计的基于传感器技术的屋面水位监测系统能够进行精准的水位监测,进而实现对建筑的漏雨情况进行判断,可行性较高,能够应用于实际场景。     

多彩海陆空兵团阅兵

空格键加双弹簧,按键回弹力更佳采用UV覆膜按键印刷技术,使键帽使用寿命延长三倍全防水功能：专业的全防水键盘,导电膜,PCB板防水全封闭处理,即使不小心倒入液体也不会损伤元件，键盘可沉入水中使用或清洗，具备防水、漏水、清洗等多种功能。     

信息服务台

赤峰北方实业有限公司是1993年5月在赤峰桥西开发区注册的一家以中高级知识分子为骨干的科技型私营股分制企业.该公司建立不久、就与河南高新技术研究所合作生产了国家专利产品:新型防水隔热保温材料——迎金牌水必克专利号(91105131.7).该产品曾荣获国内外十多次大奖、其中九次金奖,并被评为全国建材名优产品.该公司生产的迎金牌水必克、已经中国建筑科学院建材研究所检测,全部产品指标均达到国家专利产品标准,经赤峰市技术监督局检测合格、质量优良.该公司施工队数万平方米的屋面防水施工,至今未发现一处渗漏,深受用户好评,现每天来要求施工和求购产品的客户络绎不绝.     

纸类包装的防水处理影响商贸成交我国纸类包装面临一场工艺革命

纸类包装的防水处理影响商贸成交我国纸类包装面临一场工艺革命包装，是各类商品的完善嫁衣。随着我国改革的深入和自然接轨于国际惯例，商品经营者对商品必备纸包装的防水、防潮要求十分苛刻，这给我国包装业工艺改革无疑带来了新的更高要求。纸类包装的防水处理，业内有...     

防水的不仅是手表——揭开防水键盘的神秘面纱

朋友，可能你听说过防水手表，不知道你有没听说过防水键盘呢？键盘是个人电脑的外设之一，每天都会受到我们“触摸”，可以说跟我们的亲密接触是非常多的。而同时，键盘也是最容易脏以及最容易损坏的配件，往往一不小心将饮料或水倒入键盘上，那么这款键盘就很有可能寿终正寝。于是防水键盘应运而生，宣告了对水的抗争，     

墨水特性

无论是重要文档的长期保存还是照片保存，防水性都是一个需要考虑的问题。意外事件是造成文档、照片被水毁的主要因素，所以我们很难防范，只好希望打印机能够为我们提供防水特性了。     

装配式混凝土建筑预制外墙接缝防水技术研究

预制混凝土外墙板的防水措施按原理可分为材料防水(密封防水)和构造防水(排水)两大类。材料防水是依靠防水材料阻断水的通路,达到防水的目的,如接缝嵌填耐候建筑密封胶、外挂墙板周边设置橡胶空心气密条等;构造防水是采取合适的构造形式阻断水的通路,以达到防水的目的,如采用外低内高企口缝、设置排水空腔构造等。     

游戏玩家的利器 金何田战键枭龙

键盘套装采用耐脏的纯黑设计，外壳为ABST程塑料材质，防滑、抗撞击．质感很好，非常适合与人员较为复杂的网吧环境。键盘内部采用的是有防水能力的薄膜电路，并且设计了导流槽和导流孔，如有液体溅到键盘上，可以通过键盘背部的疏导孔快速排出，防水能力值得肯定。     

Only connect: teaching, technology and telesis

Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained.     

European Community policy and the market

Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven.     

一种自适应子融合集成多分类器方法

融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。     

Avoiding semantic and temporal gaps in developing software intensive systems

Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them.     

Designing economic np control charts: A programmed simulation approach

This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives.     

The development of robot art

Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest. This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January 31–February 2, 2008     

Explanation and prediction: an architecture for default and abductive reasoning

Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given.     

Three Process Perspectives: Organizations, Teams, and People

This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)^SM and Team Software Process (TSP){^SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical.     

基于复小波噪声方差显著修正的SAR图像去噪

提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。     

基于QTE的蒙古文显示机制研究与实现

蒙古语言是中国蒙古族使用的通用语言,由于蒙古文区别于其他文字的书写方式和其自身变形机制等特点,在很多通用的文字处理引擎中都不被支持。在嵌入式产品开发与应用领域中Linux加QTE已经成为流行方式。该文给出了一种在QTE环境上实现基于标准Unicode的蒙古文点阵显示和变形算法, 并自定义了支持蒙古文的QTE组件,扩展了QTE功能,为在Linux加QTE方式的嵌入式体系结构中处理蒙古文提供了一种解决方法。