我院推行学分制管理的探索与实践

在阐述学分制的科学内涵及特点的基础上,着重介绍了湖南工院推行学分制管理的探索与实践,并指出今后学分制在我院推行的方向。     

论积极心理学在中职学校教育实践运用

积极心理学在中职学校的运用有利于培养中职学生生活的积极心态,有利于解除心理适应障碍,有利于增强学生的技能训练,有利于提高抗挫折能力,有利于营造和谐校园,有利于培养学生的就业和社交能力,为进入企业适应企业发展奠定良好基础。     

借款费用准则比较研究

借款费用并非全部作为冲减利润的支出反映在利润表上。由于确认借款费用的依据不明确，一定程度上成为一些企业调控利润的手段。2001年财政部颁布了《企业会计准则—借款费用》，对借款费用划定成分，分清性质。新准则改进了旧制度的不妥之处，符合我国的实际，接近国际惯例。在对新旧制度及中外会计准则比较研究的基础上，就专门借款的界定、借款费用资本化金额中权数的选择等问题，提出改进意见。     

高职高专院校人才培养工作水平评估若干问题

近年来我国高职教育得到迅速发展，开展高职高专院校人才培养工作水平评估具有十分重要的意义，阐述了评估中需要处理好自我评价与外部评价、评估与建设、规范性与创造性、占有与效益、现状与发展、定性与定量、宽与严等之间的关系，提出了关于高等职业教育质量评价走向的几点思考。     

居民月人均可支配收入的波动对生活费支出的影响

利用协整理论对1983～2011年间吉林省城镇居民人均可支配收入和人均生活费支出的月度数据进行了实证分析,通过协整检验得出两者间存在协整关系,并建立了相应的误差修正模型,得出吉林省城镇居民月人均可支配收入的波动幅度对生活费支出波动幅度有显著影响,且为正向关系,因此增加居民可支配收入可以拉动城镇居民消费需求.     

紫外线消毒技术在污水处理中的应用

随着国民经济的迅猛发展和人口的不断增加,水源污染和水资源枯竭的问题日益严重,污水回用成为发展的必然趋势.文章介绍了紫外线消毒的特性及在污水处理中的应用情况,并与液氯、二氧化氯消毒特性进行对比分析.     

Techno-Economic Evaluation of d-Limonene and α-Pinene Separation from Citrus and Turpentine Oils

The evaluation of the technical and economic separation of the monoterpenes α-pinene and d-limonene from essential oils, carried out by computational simulation of the vacuum fractional distillation in continuous and batch mode from samples of turpentine and citrus oils, was developed using Aspen Plus® software combined with estimations of operational expenses (OPEX) and capital expenses (CAPEX) based on the Guthrie method. The production of d-limonene and α-pinene with high purity from the essential oils is a technically feasible process. From the economic point of view and based on the average annual import costs of turpentine and orange oils in Colombia, it was found that the selling prices of α-pinene and d-limonene obtained from the distillation module cost analysis depend on the daily production and can be minimized if essential oils are preliminary extracted from local industrial wastes.     

高铝矾土与石英砂在感应电炉炉衬上的应用对比研究

本文从烧结工艺、使用效果及综合经济效益三方面就高铝矾土与石英砂在感应电炉炉衬上的应用做了对比。[1]高铝矾土炉衬的坩埚烧结工艺简单,烧结时间为石英砂衬的1/2;(2)高铝矾土炉衬的使用寿命约为石英砂炉衬的2倍;(3)用高铝矾土坩埚熔炼低合金钢时,Mn、Cr、Mo等元素的收得率均高于石英砂坩埚熔炼,可节资16％。     

Drivers and barriers for the large-scale adoption of hydrogen fuel cells by Nordic shipping companies

The shipping industry needs to transition towards new fuels and technologies to reduce its environmental impact. A promising option is using hydrogen fuel cells. However, the technology is relatively new and not commercially available at a large scale. This study focuses on the Nordic shipping industry where the first commercial vessels are expected to be launched. Interviews were conducted with high-level managers to identify the factors that influence the adoption of hydrogen fuel cells. Sixteen factors are identified as motivating the decision and are categorized as internal, connecting, and external drivers. The most relevant are environmental commitments, customer expectations, and policies and regulations. Eleven factors are identified as limiting the decision and are categorized as behavioral, economic, organizational, and technological barriers. The most significant are high costs, lack of infrastructure, and operational challenges. The drivers and barriers are categorized as company-specific, industry-specific, and technology-specific.