防静电服带电电荷量测试方法探讨

通过对现行防静电服带电电荷量检测相关标准对比分析,发现存在一些操作难点,在实验的基础上,提出了改进建议。试验表明,宜选用尺寸略大、配有腈纶摩擦标准布的自动式滚筒摩擦机作为摩擦装置,选择自动式试验方法。控制试验中试样的耐洗涤程序,洗涤次数为100次,测试环境温湿度据不同行业要求选择,温度的偏差≤±1℃。     

易燃易爆场所防静电服特性研究

通过工作服布料以及工作服的两组静电燃爆对比实验,结合人体静电放电引燃机理,分析危险爆炸场所人体静电的危害性和穿着合格防静电服的重要性,并给出相应的防静电服检测方法。     

关于促进环保产业发展的经济政策研究

中国目前的经济、政策环境及环保市场决定了环保产业正迎来快速发展的良好契机,但现有对环保产业的经济扶持政策还不完善,存在刺激力度不大、范围较窄、资金缺口大且来源单一等问题。为解决目前中国环保产业所面临的一系列"瓶颈"问题,下一步,应重点从财政、税收、金融以及价格收费等4个方面入手,完善对环保产业的经济扶持政策,直接或间接刺激其快速发展,使其成为支柱性产业。     

Triboelectric charging behavior of wood particles during pellet handling processes

Electrostatic charges accumulated on wood particles through triboelectrification during their transportation and handling processes can cause hazardous electrical discharge which may further trigger dust explosion. In this work, tribo-charging behavior of different kinds of wood particles was investigated by a vibrating plate charging method. It was found that reduction in the work function difference between contact bodies might contribute to the reduction of tribo-charge generation, while the reduction of electrical resistivity of wood pellets could effectively accelerate the charge dissipation. As the particle size decreases, accumulated charges increase significantly. In contrast, higher moisture content of wood particles leads to lower charge accumulation due to an accelerated charge dissipation rate. Tribo-charging behaviors of white pellets, torrefied pellet, steam treated pellets and dark pellets have also been investigated. Compared to the white pellets, they all have shown a reduction on charge accumulation to some extent. However, results suggested that all of them have nearly equivalent tribo-charge density as coal and wheat grains used as references in this study.     

Can self‐sacrificial leadership promote subordinate taking charge? The mediating role of organizational identification and the moderating role of risk aversion

The extant literature on the relationship between self‐sacrificial leadership and subordinate behavioral outcomes has primarily focused on the influence of this leadership on subordinate affiliative behaviors. Our research proposed a theoretical model explaining why and when self‐sacrificial leadership might promote taking charge, an exemplar of challenging behaviors. We tested this model across two studies conducted in China. In addition, we also examined the differences in the boundary conditions for self‐sacrificial leadership to influence taking charge and affiliative behaviors (cooperation in Study 1 and helping in Study 2 ). Our results revealed that (i) self‐sacrificial leadership was positively related to subordinate taking charge, with organizational identification acting as a mediator for this relationship, and (ii) risk aversion moderated both the self‐sacrificial leadership–subordinate taking charge relationship and the mediating effect of organizational identification, such that the relationship and its mediating mechanism were weaker for subordinates high rather than low in risk aversion. These moderating effects, however, could not generalize to cooperation and helping. Finally, the theoretical and practical implications of our results and directions for future research were discussed. Copyright © 2015 John Wiley & Sons, Ltd.     

Nonylphenol photodegradation by novel ternary MIL-100（Fe）/ZnFe2O4/PCN composite under visible light irradiation via double charge transfer process

Nonylphenol（NP） residues, as a typical endocrine disrupting chemical（EDC）, frequently exist in sewage, surface water, groundwater and even drinking water, which poses a serious threat to human health due to its bioaccumulation. In order to remove NP, a series of MIL-100（Fe）/Zn Fe₂O₄/flake-like porous carbon nitride（MIL/ZC） was synthesized through in-situ synthesis at room temperature. High performance of ternary MIL/ZC is used to degrade NP under visible light irradiation. ...     

藻细胞不同生长阶段的海泡石凝聚除藻性能

对铜绿微囊藻(Microcystis aeruginosa 469)的4个不同生长阶段:延迟末期,对数中期,对数末期和衰老初期的表面疏水性(疏水分配法)和表面电性(Zeta电位)进行了测定,并利用0.2 g/L的海泡石进行了凝聚除藻性能实验.结果显示以上4个生长阶段的藻细胞表面疏水性平均为:64%, 48%, 58%和70%,而凝聚沉降60 min后的藻细胞去除效率为:97%, 87%, 81%和99%,表明藻细胞表面疏水性与粘土凝聚性能之间有较好的相关性(R＝0.7～0.8),但与表面电性的关系不大.M.A.469各个生长阶段的表面疏水性和凝聚性能的强弱顺序可依次确定为:衰老期>延迟期>对数增长期.     

控制农业非点源污染的排污收费理论探讨

文章阐述了排污收费的功能和适用情况。在不同信息条件下,对于同一环境目标或污染削减目标,应制定与可得信息相应的政策和标准。重点讨论了在不同信息条件下,排污税费的确定方法。最后,讨论了目前该领域存在的问题,并对未来发展提出了建议。     

排污收费标准制定理论及技术方法研究

运用微观经济学理论和宏观污染控制规划方法学论研究排污收费标准制定理论和技术方法，取得如下结论；（１）使社会福利达到最大的排污收费标准等于污染物削减的社会平均边际成本；（２）在某些时期内，污染物的社会平均削减成本根据某些污染物特定的削减方式和削减技术来确定。     

排污收费制度与污染物减排关系研究以——广东省为例

排污收费制度是一项广泛应用的以减少污染物排放为主要目的的环境经济政策。国家新排污收费条例颁布4年后,需要对其实施效果进行评估。文章运用政策评估中的倾向线投射点与实际点比较法,对比分析了1996—2005年条例实施前后广东省的排污费和主要污染物排放量关系,探讨了排污收费制度对污染物减排的影响。结果表明,该条例的筹集资金功能强于旧收费制度,但对于污染物减排是乏力的,广东省主要污染物排放量不降反升,这与国家的减排要求不相适应。因此,应该对现行排污收费制度作进一步的改革。