内电解法处理糠醛废水的工程应用研究

糠醛废水COD浓度高,色度高,其中含有大量的醋酸,pH值在2～3左右,直接生化难度很大。利用内电解处理可以有效地提高废水的可生化性。试验结果表明,进水ρ(CODCr)为12000mg·L-1的糠醛废水,经内电解法预处理后,CODCr去除率也可达到30%左右,可生化性大大提高,为后续的生化处理奠定了基础。     

论民初我国救灾之主要特征

民国初年我国救灾的主要特征有三:一是救灾主体多元化,这可从阶层、国籍、职业、身份等方面看出,总体上又可划分为政府和社会力量两个方面。至于救灾效能,无论是政府还是社会救济力量均存在着或多或少的局限性。二是短效机制占主导,这可从救灾因素之临设性、救灾甚于防灾两点看出。三是社会过渡性彰显,无论是思想,还是机构、制度,都呈现出明显的新旧交错性,即社会过渡性。     

轰燃后火焰的辐射热通量计算

轰燃后火焰的热辐射危害，是目前确定建筑物间安全距离的主要依据之一。该文提出了轰燃后火焰在室外一定距离处辐射热通量的计算方法；并在喷出火焰不受室外风影响的情况下，利用小规模试验的结果对这一方法进行了验证。     

室内装修污染危害及其防治

文章介绍了室内环境污染的来源和危害,分析了造成室内环境污染的各种因素,通过对近年来包头市室内污染状况的调查分析,提出了解决污染问题的对策和措施。     

论民初我国救灾成效不彰及其原因

民国初年,我国救灾的成效方面存在着相当的不足,并直接引起连带性恶性效果。影响民国初年救灾成效不佳的原因主要可以归纳为三点,即:施政重点倾斜、社会动荡不安、政府救灾功能减弱等。     

Benefits of indoor plants on attention capacity in an office setting

This research studied possible benefits of indoor plants on attention capacity in a controlled laboratory experiment. Participants were 34 students randomly assigned to one of two conditions: an office setting with four indoor plants, both flowering and foliage, or the same setting without plants. Attention capacity was assessed three times, i.e. immediately after entering the laboratory, after performing a demanding cognitive task, and after a five-minute break. Attention capacity was measured using a reading span test, a dual processing task known to tap the central executive function of attention. Participants in the plant condition improved their performance from time one to two, whereas this was not the case in the no-plant condition. Neither group improved performance from time two to three. The results are discussed in the context of Attention Restoration Theory and alternative explanations.     

室内装修污染危害及其防治

文章介绍了室内环境污染的来源和危害,分析了造成室内环境污染的各种因素,通过对近年来包头市室内污染状况的调查分析,提出了解决污染问题的对策和措施。     

Communication in Ecosystem Management: A Case Study of Cross-Disciplinary Integration in the Assessment Phase of the Interior Columbia Basin Ecosystem Management Project

Effective communication is essential to the success of collaborative ecosystem management projects. In this paper, we investigated the dynamics of the Interior Columbia Basin Ecosystem Management Projects (ICBEMP) cross-disciplinary integration process in the assessment phase. Using a case study research design, we captured the rich trail of experience through conducting in-depth interviews and collecting information from internal and public documents, videos, and meetings related to the ICBEMP. Coding and analysis was facilitated by a qualitative analysis software, NVivo. Results include the range of internal perspectives on barriers and facilitators of cross-disciplinary integration in the Science Integration Team (SIT). These are arrayed in terms of discipline-based differences, organizational structures and activities, individual traits of scientists, and previous working relationships. The ICBEMP organization included a team of communication staffs (CT), and the data described the CT as a mixed group in terms of qualifications and educational backgrounds that played a major role in communication with actors external to the ICBEMP organization but a minor one in terms of internal communication. The data indicated that the CT-SIT communication was influenced by characteristics of actors and structures related to organizations and their cultures. We conclude that the ICBEMP members may not have had a sufficient level of shared understanding of central domains, such as the task at hand and ways and timing of information sharing. The paper concludes by suggesting that future ecosystem management assessment teams use qualified communications specialists to design and monitor the development of shared cognition among organization members in order to improve the effectiveness of communication and cross-disciplinary integration.     

室内空气中甲醛的测定方法

介绍了室内空气中甲醛的危害和主要来源，综述了甲醛的测定方法：分光光度法、色谱法、光学法、传感器法和极谱法。     

会议室装饰后空气中甲苯含量的变化

作者用活性炭吸附和高效液相色谱法,测定了某会议室装饰后空气中气态有机化合物的含量,发现甲苯含量高达30mg/m~3。跟踪监测的结果表明,45天后,浓度下降为0.8mg/m~3;90天后,恢复为0.10mg/m~3。甲苯浓度变化符合公式:C_t=C_0·E~(-nt)。