地质灾害防治与地质环境保护问题探究

地质灾害是指在自然或者人为因素作用下形成的环境破坏现象,一旦发生,建筑物、水利、公路等基础设施都会遭到严重破坏。因而,为了保障人们生命财产安全,必须做好现阶段的地质灾害防治和地质环境保护工作,降低环境恶化现象,避免滑坡、泥石流等自然灾害的频繁发生给人们带来较大的损失。     

散装预拌砂浆与传统自拌砂浆优缺点对比分析以及使用过程中需改进的几点意见

预拌砂浆作为一项绿色建材得到政府和社会的认同,预拌砂浆采用密闭容器进行运输和现场存储,以往施工现场砂浆搅拌过程中的扬尘满天飞情况可以基本杜绝,符合北京市地方标准绿色施工管理规程(DB11/513-2008)中"施工现场易飞扬细颗粒散体材料,应密闭存放"的规定。密封运输、密封储存,减少浪费,减少扬尘,真正做到文明施工;精确搅拌使用,施工质量容易控制;加快施工速度,节约成本。但是使用过程中还存在一些需改进的地方,文中详细介绍。     

Survey on differential privacy and its progress

With the arrival of the era of big data sharing,data privacy protection issues will be highlighted.Since its introduction in 2006,differential privacy technology has been widely researched in data mining and data publishing.In recent years,Google,Apple and other companies have introduced differential privacy technology into the latest products,and differential privacy technology has become the focus of academia and industry again.Firstly,the traditional centralized model of differential privacy was summarized,from the perspective of analysis of data mining and data released in the differential privacy way.Then the latest local differential privacy regarding data collection and data analysis based on the local model was described,involving crowdsourcing with random response technology,BloomFilter,statistical inference techniques.Finally,the main problems and solutions of differential privacy technology were summarized.     

珠江三角洲“耕保型村庄”的发展诉求与耕地保护经济补偿——以佛山市南海区平沙村为例

2013年以来“城乡统一的建设用地市场”已成为土地制度改革的中心议题，但这一制度仍受困于“计划性”的城乡建设用地的指标总控以及耕地（尤其是基本农田）指标控制。基于此，对于基层政府而言，辖区内的基于城乡建设用地的利益格局与基于基本农田保护的责任格局产生了智识与政策层面上的双重分裂，而“耕保型村庄”长期作为一个失语者则未得到应有的追踪与调研。文章以珠江三角洲的佛山市南海区为例，借由案例村庄的深度访谈来折射其对于农村土地制度改革（尤其是农村集体经营性建设用地）的期望以及对于耕地保护经济补偿的诉求，期望能对新一轮次的城乡统筹发展与村庄规划有所启发。     

建筑防火设计中脉冲超细干粉灭火技术的应用

脉冲超细干粉灭火技术是灭火技术的一场革命。它优良的灭火效果、安全无毒的特性，使得它在几乎所有场合得到运用。本文提出了脉冲灭火技术在建筑设计中应用的要求，并分析了该技术在建筑消防上的应用。     

The assessment of scattered light in ophthalmic materials

The assessment of scattered light in lenses, sunglasses and eye protection has been carried out in various ways. Wide‐angle scatter (haze) is used in the United States, Australia and New Zealand. Small‐angle scatter (light diffusion) is specified in Europe. Little is known of the relationships within and between the methods. In an international standard, a single method is generally required. The measurement of wide‐angle scatter (haze) (two variations of a method) and small‐angle scatter (light diffusion) (three variations of a method) were carried out on 12 samples, 4 abraded, 4 with inclusion defects and 4 with surface coating defects, in an international inter‐laboratory comparison. The consensus means and confidence limits were used to compare two haze methods: the “Basic” light diffusion method and two variations of the “Simplified” light diffusion method. For abraded samples, haze and light diffusion measures are linearly related. For the remaining samples, the haze method was a much more sensitive detector of low levels of light scatter. The three measures of light diffusion are highly linearly correlated. Haze is the more sensitive measure for lower levels of light scatter when due to smaller scattering elements. The Basic and Simplified methods are highly linearly correlated. The red laser Simplified method returns a value 10% lower than that of the Basic method, and the green laser Simplified method returns a value 12% higher than that of the Basic method. These can be accounted for by a calibration factor or different acceptance values. © 2015 Wiley Periodicals, Inc. Col Res Appl, 41, 416–423, 2016     

新型节能环保的刨花干燥系统与烟气油炉的研制

本文通过介绍其技术特点、系统结构和应用效果,为烟气油炉与三通道干燥机组成的干燥系统的应用和推广提供一定的根据,供行业借鉴,参考。     

Reactor protection system testing for the solid fuel thorium molten salt reactor

Safety system testing is one of the most rigorous and time-consuming requirements in the verification and validation process for reactor protection systems(RPSs).This paper presents the development of a test system for the fully digital and field-programmable gate array-based RPS of the solid fuel(SF) thorium-breeding molten salt pebble bed fluoride salt-cooled reactor(TMSR),denoted as the TMSR-SF1 project,developed by the Chinese Academy of Sciences.The test system is applied to the RPS to ensure that it fully meets its designed functions and system specifications.We first introduce the testing principles and methods.Then,the hardware component designs and the software program development of the test system are discussed.Finally,the test process and test results are discussed and summarized.     

低温干燥过程中LEA-motif对热敏性药物胰岛素的活性保护研究

用LEA蛋白特征重复片段作为干燥活性保护剂,研究其对热敏性胰岛素的干燥保护效果和作用机理。结果表明,LEA-motif保护的胰岛素的三维活性结构保持良好,并且氨基酸残基振动明显减弱,LEA-motif保护的胰岛素六聚体冻干后的效价稳定,说明LEA蛋白特征重复片段对热敏性蛋白药物有良好的干燥活性保护效果。