烟气脱硫石膏及其建材资源化研究

介绍了作者在烟气脱硫石膏及其作为主要原料制备建筑石膏、粉刷石膏、石膏砌块（条板）、纸面石膏板、腻子、水泥缓凝剂、二水石膏胶结材等建材资源化方面的研究结果。结果表明，烟气脱硫石膏的品位较高，便于利用，是建材工业的宝贵资源，应进一步加大研究开发力度。     

五氯酚对盐泽螺旋藻的毒性研究

研究了五氯酚对盐泽螺旋藻的毒性作用。结果表明，五氯酚对盐泽螺旋藻的生长量、叶绿素含量和藻胆素含量的ＩＣ５０分别是４．２６、０．３６９、１．１３２ｍｇ／Ｌ。实验结果还显示，五氯酚在实际浓度范围内，刺激盐泽螺旋藻的硝酸还原酶的活性，并有随浓度增高，活性增强的趋势。     

铁路糖尿病患病职工血糖控制现状分析

了解某地区铁路糖尿病患病职工血糖控制情况,为改进健康干预措施提供依据。选取新诊断糖尿病职工272人及已确诊糖尿病职工175人,分析其健康体检结果及影响因素。结果表明,目前该地区糖尿病患病职工HbA1c <7%占46.98%,原已确诊糖尿病职工糖化血红蛋白控制率29.14%,入院治疗原因中健康体检检出血糖增高和出现糖尿病症状占75.43%,药物治疗率65.71%,运动和饮食控制率均为21.71%;新诊断与原已确诊糖尿病职工在血脂异常、肥胖、腹型肥胖差异有统计学意义。该地区糖尿病患病职工规范治疗后血脂异常、肥胖等有所降低,但糖尿病患病职工新诊断病例高、血糖控制率低,原已确诊糖尿病患病职工自我健康管理能力不足;提出应充分发挥健康体检筛查作用、早诊断早防治早干预、劝导规范就医、加强精准健康干预等建议。     

New technology and application of brick making with coal fly ash

China has ranked first in the coal fly ash emission in the world. The multipurpose use of the fly ash from power plant waste is always an important topic for the Chinese environmental protection, which has drawn the concern of the government, scientific research departments, manufacturing enterprises and industry experts. This paper introduces an experimental research on how to recycle fly ash effectively, a kind of new technology of making bricks by which fly ash content could be amounted to 50–80 %. The article introduces raw materials of fly ash brick, production process and key control points. It introduces how to change the technical parameters of the existing brick-making mechanical device, optimize the parameters combination and improve the device performance. High-content fly ash bricks are manufactured, which selects wet fly ash from power plants, adding aggregate with reasonable ratio and additives with reasonable dosage, and do the experimental research on manufactured products for properties, production technology and selection about technology parameters of production equipment. All indexes of strength grade, freezing-thawing resisting, and other standards of the studied bricks reached the national standards for building materials industry.     

Influence of inclination angle on dust migration and settlement characteristics of excavation roadway

Environmental Science and Pollution Research - The migration law of dust in the roadway is the basis of dust control, but most of the relevant studies are based on the horizontal roadway, ignoring...     

压缩式压电传感器轴向灵敏度的幅值线性度问题

本文阐述了压电传感器的结构原理及其幅值灵敏度的线性度问题，为了减小测量误差，在使用时应当注意其幅值线性度。     

全国机动车污染物排放量——《2013年中国机动车污染防治年报》（第Ⅱ部分）

环境保护部日前发布（（2013年中国机动车污染防治年报》,公布了2012年全国机动车污染排放状况。本期“研究成果展示”专栏以六篇形式连载。本文刊载2012年全国机动车污染物排放量现状及其变化趋势的内容,以飨读者。该年报指出,2012年,全国机动车排放污染物4612．1万吨,比2011年增加0．1％,其中氮氧化物（NOx）640．0万吨,碳氢化合物（HC）438．2万吨,一氧化碳（CO）3471．7万吨,颗粒物（PM）62．2万吨。汽车是污染物总量的主要贡献者,其排放的NOx和PM超过90％,HC和CO超过70％。按车型分类,全国货车排放的NOx和PM明显高于客车,其中重型货车是主要贡献者;而客车CO和HC排放量则明显高于货车。按燃料分类,全国柴油车排放的NOx接近汽车排放总量的70％,PM超过90％;而汽油车CO和HC排放量则较高,超过排放总量的70％。按排放标准分类,占汽车保有量7．8％的国I前标准汽车,其排放的四种主要污染物占排放总量的35．0％以上：而占保有量61．6％的国Ⅲ及以上标准汽车,其排放量还不到排放总量的30．0％。按环保标志分类,仅占汽车保有量13．4％的“黄标车”却排放了58．2％的NOx、56．8％的Hc、52．5％的CO和81．9％的PM。2012年,全国机动车保有量比2011年增长了7．8％,但四项污染物排放总量与2011年基本持平,这与实施更严格的机动车排放标准、加快淘汰高排放的“黄标车”、提升车用燃料品质等措施有关。     

氯代酚类物质对斑马鱼的急性毒性及QSAR研究

收集整理了取代苯类化合物与斑马鱼的48 h和96 h急性毒性(LC50)的定量关系数据,依据定量结构-活性关系原理,利用AM1法计算分子描述符表征化合物后,以多元线性回归法进行建模,并对建好的QSAR模型进行评价与检验。为进一步验证所建模型的预测能力,选择建模过程中所用化合物以外的3种氯代酚:对氯酚、2,4-二氯酚、2,4,6-三氯酚对斑马鱼做48 h和96 h的急性毒性验证试验,其48 h-LC50分别为8.171、6.146、1.385 mg/L;96 h-LC50分别为6.475、4.327、1.132 mg/L。验证试验结果与已构建QSAR模型预测值进行对比和评价,经过残差分析,得出试验值与模型预测值残差均满足δ1,从而进一步验证所构建的该苯系化合物的急性毒性QSAR模型有良好的预测能力。     

农村灾害避难场所布局规划评价研究——以四川省小鱼洞镇为例

灾害避难场所不仅在灾中或灾后能为农村灾民提供一个临时安置或生存场所,而且更是农村整合其有限资源开展防灾减灾工作的平台,在农村社区减灾中工作发挥着重要的作用,然而相关研究工作较少。以四川省彭州市小鱼洞镇为例,通过对政府既定的避难场所进行安全性、通达性、收容性、生活性等分析,综合评价这些避难场所的布局合理性。以期为该区避难所的进一步建设提供科学依据,也为农村灾害避难所的规划和评价提供参考实例。     

Recent advances and perspectives towards emission inventories of mobile sources: Compilation approaches, data acquisition methods, and case studies

In recent years, great efforts have been devoted to reducing emissions from mobile sources with the dramatic growth of motor vehicle and nonroad mobile source populations. Compilation of a mobile source emission inventory is conducive to the analysis of pollution emission characteristics and the formulation of emission reduction policies. This study summarizes the latest compilation approaches and data acquisition methods for mobile source emission inventories. For motor vehicles, a high-resolution emission inventory can be developed based on a bottom-up approach with a refined traffic flow model and real-world speed-coupled emission factors. The top-down approach has advantages when dealing with macroscale vehicle emission estimation without substantial traffic flow infrastructure. For nonroad mobile sources, nonroad machinery, inland river ships, locomotives, and civil aviation aircraft, a top-down approach based on fuel consumption or power is adopted. For ocean-going ships, a bottom-up approach based on automatic identification system (AIS) data is adopted. Three typical cases are studied, including emission reduction potential, a cost-benefit model, and marine shipping emission control. Outlooks and suggestions are given on future research directions for emission inventories for mobile sources: building localized emission models and factor databases, improving the dynamic updating capability of emission inventories, establishing a database of emission factors of unconventional pollutants and greenhouse gas from mobile sources, and establishing an urban high temporal-spatial resolution volatile organic compound (VOC) evaporation emission inventory.