滤筒式除尘器的开发与应用

滤筒式除尘器具有体积小、效率高、操作简便等优点，已在很多行业成功应用。     

电力系统地震易损性研究

采用专家咨询方法研究了我国电力系统设施及功能的地震易损性,详细论述了所使用的方法及其步骤,给出了设施易损性和功能易损性的调查结果。数据的统计处理表明,这些结果可以用Logistic曲线得到很好的拟合。地震烈度的临界点出现在Ⅸ度与X度之间。本文的结果不但具有理论价值,而且具有应用价值。     

钻井废水的处理现状与展望

油气井钻探过程中产生大量钻井废水，会对环境产生污染。本文介绍了钻井废水的来源、组成及其对环境的影响，着重介绍了目前钻井废水的处理工艺、方法和处理剂，并对钻井废水处理技术的发展进行了展望。     

In situ monitoring of atmospheric nitrous acid based on multi-pumping flow system and liquid waveguide capillary cell

In the last four decades, various techniques including spectroscopic, wet chemical and mass spectrometric methods, have been developed and applied for the detection of ambient nitrous acid (HONO). We developed a HONO detection system based on long path photometry which consists of three independent modules i.e., sampling module, fluid propulsion module and detection module. In the propulsion module, solenoid pumps are applied. With solenoid pumps the pulsed flow can be computer controlled both in terms of pump stroke volume and pulse frequency, which enables the attainment of a very stable flow rate. In the detection module, a customized Liquid Waveguide Capillary Cell (LWCC) is used. The customized LWCC pre-sets the optical fiber in-coupling with the liquid wave guide, providing the option of fast startup and easy maintenance of the absorption photometry. In summer 2014, our system was deployed in a comprehensive campaign at a rural site in the North China Plain. More than one month of high quality HONO data spanning from the limit of detection to 5 ppb were collected. Intercomparison of our system with another established system from Forschungszentrum Juelich is presented and discussed. In conclusion, our instrument achieved a detection limit of 10 pptV within 2 min and a measurement uncertainty of 7%, which is well suited for investigation of the HONO budget from urban to rural conditions in China.     

PDMDAAC改性膨润土处理染料废水的实验研究

膨润土是一种以蒙脱石为主要成分的粘土,被广泛应用于染料废水脱色、有机废水处理等领域.实验以寻求一种新型水处理剂为目标,采用膨润土为原料,PDMDAAC为改性剂,制备新型改性膨润土——PDMDAAC改性膨润土,并应用于染料废水处理中.PDMDAAC改性膨润土最佳制备条件为改性剂为6 g原土投加量为12 g、改性时间为40 min、改性温度为45℃.单因素实验确定PDMDAAC改性膨润土处理分散深蓝染料废水100 mL的最佳处理工艺条件为:改性膨润土投加量为3 g、pH9、搅拌时间为45 min、搅拌速度250 r/min,分散深蓝染料废水原水浓度为100 mg/L.正交实验对工艺条件进行验证,结果表明:分散深蓝染料废水100 mL,分散深蓝染料废水原水浓度小于150 mg/L,改性膨润土投加量为3 g,搅拌时间60 min,搅拌速率为250 r/min,pH为9,在此基础上进行实验,染料废水脱色率可达98％.     

外浮顶原油储罐VOCs排放核算参数对排放量的影响

依据美国环保署颁布的储罐VOCs排放量核算公式,从环境参数、原油参数和储罐结构参数3个方面对外浮顶储罐VOCs排放的影响进行了研究,其中包括了边缘密封排放挂壁排放、浮盘附件排放和浮盘着陆期间排放等几个相关排放核算数学公式。结果表明:环境风速增大,环境温度升高或太阳辐射强度提高均导致排放量增大;原油温度升高或原油周转量增加也导致排放量增加;储罐直径增加,罐漆颜色浅,或者罐壁锈蚀情况好会降低VOCs排放量。     

Founder need to belong,tertius iungens orientation and new venture performance

In this study, we examine the role of founders' need to belong and tertius iungens orientation (i.e., the tendency of bringing people together and coordinating among others) in the context of new ventures. We propose and document evidence that a founder's tendency to engage in tertius iungens oriented networking is positively associated with new venture performance. We also reveal that a founder's need to belong is a significant motivational antecedent of the founder's tertius iungens orientation. Further, the need to belong–networking orientation linkage is stronger for founders in new ventures at the early product development stage than those at the late product development stage. We tested our hypotheses using survey data collected with a two‐wave sample of new ventures in China. We discuss the theoretical significance of studying the need to belong and tertius iungens orientation for social networks and entrepreneurship literatures, as well as the practical implications for managing a successful new venture.     

水环境质量区间隶属度评价法

通过对水环境质量综合评价中的灰色关联分析法进行分析,认为水环境质量评价标准是区间概念,将评价标准处理成点的传统灰色关联分析法存在一定的缺陷。为克服这种缺陷,提出一种水环境质量区间隶属度评价法,该方法借鉴了模糊综合评价法的距离计算原理,但比模糊综合评价法更为简单、直观,具有较强的适用性。     

安徽省乔木林固碳能力研究

以安徽省第六次森林资源连续清查结果为依据,对安徽省不同类型乔木林固碳能力进行了研究。结果表明,不同林种乔木固碳能力依次为：用材林（薪炭林（特种用途林（防护林;不同发育阶段乔木林固碳能力依次为：幼龄林（中龄林（近成熟林（成熟林（过成熟林;不同优势树种组乔木林固碳能力依次为：针叶林（阔叶林（针阔混交林;不同优势树种乔木林固碳能力依次是：杉木林（马尾松林（杨树林;同时,得出相同龄组但不同优势树种或相同优势树种但不同龄组的乔木林固碳能力也不同,其中杉木的幼龄林固碳能力最大,达到19.75 t/（hm^2.a）。     

中国气候状况及应对气候变化方案和措施

由于受人类活动和自然因素的综合影响,自20世纪50年代以来,中国年平均气温已升高了0.68℃,其中黄河以北地区平均升高了0.8℃～1.2℃,黄河以南地区平均下降了0.2℃～0.8℃;而北方年降水量减少,南方却增加,南涝北旱加剧。经模拟预测后认为,中国从1987年开始的气候变暖将持续到2015年,将于2016年转入低温期,2039年又将转入高温期。到2020年全国年平均气温将比20世纪50年代升高1.68℃,西北地区平均升高2.22℃;南方年平均降水量增加28 mm,北方变化不大;2030年海平面将升高5.3 cm～14.2 cm,气候将向暖、干的趋势发展。因此中国发布《中国应对气候变化国家方案》及对此采取综合对策。