细菌表面展示技术及其在环境重金属污染修复中的意义

从细菌表面展示系统构成、载体蛋白的选择和细菌表面展示策略等方面综述了细菌表面展示技术及其发展,分析了它们的优缺点,指出了细菌表面展示技术用于重金属污染修复存在的问题,提出了解决问题的思路和方法。     

The spillover effects of coworker,supervisor, and outsider workplace incivility on work‐to‐family conflict: A weekly diary design

This study used an experience sampling design to examine the spillover effects of experienced workplace incivility from organizational insiders (coworkers and supervisors, respectively) and organizational outsiders (patients and their visitors) on targets' work‐to‐family conflict and to test the mediating effect of burnout and the moderating effect of display rules. Data collected over five consecutive weeks from 84 full‐time nurses showed that within individuals, weekly experiences of coworker incivility and outsider incivility were positively related to weekly experience of work‐to‐family conflict, and burnout mediated these relationships while controlling for initial level of burnout before participants started a week's work. In addition, display rules, defined as the extent to which individuals perceive they are expected to display desired positive emotions and suppress negative emotions at work, moderated the relationship between outsider incivility and burnout; specifically, the positive relationship between weekly outsider incivility and burnout was stronger for individuals who perceived a higher level of display rules. Our findings contribute to the literature by demonstrating the mediating effect of burnout and the moderating effect of perceived display rules in the relationship between workplace incivility from multiple sources and work‐to‐family conflict from a resource perspective.     

CAE软件跌落仿真在遥控器结构设计上的应用

本文介绍CAE(Computer Aided Engineering)仿真软件在提高遥控器液晶显示屏跌落保护中的应用,阐述CAE在产品设计上的重要性,使CAE仿真软件能得到广泛的应用。     

Comparison Between the Strain Indicator HRV of a Head-Based Virtual Retinal Display and LC-Head Mounted Displays for Augmented Reality

Augmented Reality uses Head Mounted Displays (HMD) to overlay the real word with additional virtual information. Virtual Retinal Displays (VRD), a new display technology, no longer requires Liquid Crystal Displays (LCD). VRD technology addresses the retina directly with a single laser stream of pixels. There are no studies on the user’s informational strain in this new VRD technology. Various papers have shown that Heart Rate Variability (HRV) is a valid indicator for the user’s informational strain. An empirical test revealed no difference in the user’s HRV between VRD technology and LCD technology. Consequently, there seems to be a comparable user informational strain regarding the display types.     

Storage and display of odour by male Saccopteryx bilineata (Chiroptera, Emballonuridae)

Males of the sac-winged bat, Saccopteryx bilineata, actively fill their propatagial sacs with secretions from the genital region, the gular gland, urine and saliva. From our observations and those of Starck we deduce that propatagial sacs in S. bilineata do not have a glandular function, but are instead organs for the storage and display of odours. In addition to the already known “salting” and hovering behaviour of male S. bilineata, we describe in detail how odour is fanned to roosting individuals during the complex, stereotypic hovering displays. S. bilineata males also coat the fur of their backs with saliva using the wing tip and might scent-mark territory boundaries. “Yawning” may represent a visual as well as an olfactory cue. Odour seems to play an important role in the social communication of S. bilineata and in other emballonurids, as revealed by the broad distribution of wing sacs in this family. S. bilineata males display odour during energetically costly hovering flights in front of females. We demonstrate that the number of hovering displays increases with harem size. The mating effort of S. bilineata males comprises a multimodal signalling behaviour. Although males defend harem territories in which females gather, females seem to be able to choose the father of their progeny freely among the males of a colony. This may have led to the evolution of the complex mating displays by male S. bilineata. Received: 9 December 1998 / Received in revised form: 6 May 1999 / Accepted: 13 June 1999     

关于对烟花爆竹行业开征环境税问题探讨研究

如今燃放烟花爆竹所带来的环境问题已经日益明显,特别是对环境空气质量的影响。在当今雾霾笼罩的大氛围下,对烟花爆竹的生产和销售、消费领域采取适当环境经济手段来调控(如征收环境税)就显得很有必要,这在一定程度上可以控制烟花爆竹的消费量,减少燃放烟花爆竹所造成的环境外部性。同时用征收来的环境税对研发采用环保药剂、先进技术的企业进行补贴、奖励,或者对于这些企业给予一定的环境税优惠,可以引导烟花爆竹产业朝着更加健康的方向发展。     

春节期间燃放烟花爆竹对南宁市环境空气的影响分析

根据2011年春节期间南宁市主要污染物（PM10、SO2、NO2）浓度,分析了燃放烟花爆竹对环境空气的影响。结果表明：除夕和元宵节大量燃放烟花爆竹能导致PM10在短时间内快速上升,但对SO2和NO2浓度的影响不明显。除夕期间23：00-2：00是PM10受燃放烟花爆竹影响最大时段,城市居民居住集中区PM10浓度远高于其他区域。     

废液晶显示器偏光片水热法降解的实验研究

利用管式间歇反应器对废液晶显示器中的偏光片进行水热降解实验研究,考察了反应温度、反应时间、水的用量和氧化剂对液相有机碳和偏光片分解率的影响,并对反应后的液相产物进行HPLC分析。结果表明,反应温度、反应时间和氧化剂的投加量均对偏光片的分解率具有显著影响;液相产物中的TOC随着反应温度、反应时间、用水量和氧化剂投加量的增加都存在一个先增加后减少的趋势,当反应温度为300℃,反应时间为5 min,H2O(230%)的投加量为0.2 mL时,TOC高达14 586 mg/L,此时,偏光片中的碳元素向水相转化的迁移量最多,液相产物中有乙二酸、乳酸、乙酸、马来酸、富马酸、丙烯酸等有机酸以及甘油醛和5-羟甲基-2-糠醛(HMF)生成,最有利于废弃偏光片后续水热资源化处理的开展。     

“禁燃令”对京津冀地区除夕夜空气质量的影响

基于安全和环保的考虑,我国多地颁布了节日期间“禁燃令”,收紧烟花爆竹燃放.以京津冀地区为例,基于2015—2020年13个城市共89个国控监测点的空气质量数据、城市级气象数据,以及烟花爆竹禁限放规定实施数据,采用多期双重差分法,评估“禁燃令”对除夕夜空气质量改善的效果.结果表明,“禁燃令”的推行可以改善京津冀地区除夕夜空气质量.具体而言,除夕夜间颗粒态污染物（PM_2.5、PM₁₀）小时浓度未出现明显陡升现象;除夕夜间PM_2.5均值浓度下降18.9%,峰值浓度下降32.2%,PM₁₀均值浓度下降20.7%,峰值浓度下降36.8%,SO₂峰值浓度下降28.1%;烟花爆竹禁放措施的实施显著降低了颗粒态污染物污染,但尚无证据表明NO₂、O₃、CO浓度显著降低.本文论证了“禁燃令”政策的环境效益,并为公众行为干预政策的制定提供了参考.