建设创新型、信息化、开放性的电工电子实验室

电工电子实验教学是提高电信类学生创新能力和实践能力的主要手段,电工电子实验室则为培养创新型、复合型人才提供了最基本的教学和科研环境。结合大连海事大学的实际情况,探讨建设创新型、信息化、开放性电工电子实验室的关键问题。实践证明更新实验内容、建立创新实验室、加强教师队伍建设、建设信息化管理平台、加大实验室开放力度等一系列改革措施,有利于激发学生的创新思维,培养学生的实际动手能力和团结协作精神,有利于满足造就高素质复合型创新人才的社会需求。     

在思想政治理论课教学中凸显责任感教育

思想政治理论课教学在大学生责任感培养中发挥着主渠道的作用,通过对新疆高职院校大学生社会责任感现状的分析,明确新疆高职院校大学生社会责任感的主要内容,积极探索思政理论课教学的新途径。     

大学出版社转制后编辑力下降原因及对策浅析

转制后,一些大学出版社在经济效益逐年提高的同时出现编辑力下降的趋势,这是因为这些大学出版社在转制后经营理念出现偏差,制度设计片面强调“企业化”,单纯追求经济效益.大学出版社只有端正经营理念,理顺管理制度,提升编辑力,提高图书质量,才能在更加激烈的竞争环境中取得持久经济效益.     

知识资本的国内外研究进展与展望

从知识资本的含义、研究方向、研究内容以及研究对象等方面对国内外知识资本研究的现状进行了分析。指出了目前知识资本研究存在的主要不足,并探讨其未来的研究趋势。知识资本研究需要建立自己的理论体系,加强对大学知识资本化活动的研究,更加深入地考察知识与资本之间的关系以及政府的角色问题,并增加实证研究的比例。     

Esterification of free fatty acids in waste cooking oil by heterogeneous catalysts

Waste cooking oil (WCO) is becoming the most promising alternative feedstock to produce biodiesel due to its low cost in China. In this study, NKC-9 ion-exchange resin and H-beta zeolite were selected as heterogeneous catalysts in the WCO esterification process and their esterification characteristics were compared by orthogonal experiments. NKC-9 resin showed higher activity and achieved a higher final conversion compared with H-beta zeolite under the same reaction conditions. Reusability experiments showed that NKC-9 resin still exhibited high activity after 5 runs. The effects of the mole ratio of alcohol to oil, reaction time, reaction temperature and the catalyst dose were investigated by multifactor orthogonal analysis. The influence of the free fatty acid (FFA) content was also investigated, and the result showed that the esterification rate could be as high as 98.4% when the FFA content was 6.3wt%.     

Assessing Academic Library Services to Distance Learners: A Literature Review of Perspectives from Librarians,Students, and Faculty

Many academic libraries are expanding services to online and distance students to keep pace with enrollment trends in higher education, prompting additional research to evaluate the use and effectiveness of library reference and instruction services to distance users. This literature review explores this research from the perspectives of academic librarians, distance students, and faculty teaching online and distance courses, and finds both commonalities and contradictions among these viewpoints.     

日本博士后制度的发展与问题研究

日本的博士后教育经历了初创、扩张和调整阶段,逐步形成了较为完善的博士后制度。在20多年的发展过程中,日本博士后制度体现出政府主导性强、资助方式多元化、重视人才流动性和国际交流等特点。不过,日本的博士后也面临着缺乏统一管理、权益无法保障、就业困难、性别失衡、高龄化现象严重等问题。尽管近年来日本政府尝试从多方面进行改革,但是能否推动博士后制度走出困顿境况,仍然需要在实践中不断探索。     

基于校企合作的职教师资旅游管理专业实践教学模式构建

目前普遍存在由于校企合作缺失所引发的旅游管理实践教学问题,职教师资旅游管理专业实践教学模式的构建应突出技能性、科研性和教育性等原则.基于此,文章提出基于校企合作的职教师资旅游管理专业实践教学模式,该模式突出人才服务技能、科研能力和教学能力培养的三位一体.     

水产类创新创业教育基地建设新模式探究

本文分析了国内高校创新创业教育基地在机构设立、制度保障、校企合作方面的建设情况,提出了高校与地方水产行政管理部门共建水产类创新创业教育基地在学生个人发展、创新与创业项目转化、资源利用率提升三方面的优势,并进一步指出了与地方水产行政管理部门共建水产类创新创业教育基地的实施路径,以期建设一种特色的水产类创新创业教育基地的创新模式.     

Needle-free injection of insulin powder: delivery efficiency and skin irritation assessment

Insulin is widely used in treating diabetes, but still needs to be administered by needle injection. This study investigated a new needle-free approach for insulin delivery. A portable powder needleless injection (PNI) device with an automatic mechanical unit was designed. Its efficiency in delivering insulin was evaluated in alloxan-induced diabetic rabbits. The skin irritation caused by the device was investigated and the results were analyzed in relation to aerodynamic parameters. Inorganic salt-carried insulin powders had hypoglycemic effects, while raw insulin powders were not effective when delivered by PNI, indicating that salt carriers play an important role in the delivery of insulin via PNI. The relative delivery efficiency of phosphate-carried insulin powder using the PNI device was 72.25%. A safety assessment test showed that three key factors (gas pressure, cylinder volume, and nozzle distance) were related to the amount of skin irritation caused by the PNI device. Optimized injection conditions caused minimal skin lesions and are safe to use in practice. The results suggest that PNI has promising prospects as a novel technology for delivering insulin and other biological drugs.