蕨菜保鲜贮藏技术研究

以蕨菜为原料,研究安全性好、成本较低、保鲜效果好的蕨菜保鲜方法．保存液配方为维生素C0．10％,氯化钙0．30％,山梨酸钾0．05％,食盐1．00％,100℃灭菌3min．用此方法保鲜蕨莱安全性完全符合国家规定,在30℃下至少能保鲜3个月,在室温条件下保存一年也尚未完全失去商品价值．     

黑龙江省煤炭物流绿色化策略研究

以煤炭绿色物流的含义作为全文的线索,分析了黑龙江主要煤炭城市在煤炭绿色物流的各个方面存在的问题及相关的对策。     

营养素与国民身体素质

本文对我国营养科学的发展史和现状进行了综合论述评价 ,并针对目前存在的诸多问题提出了建设性的意见。     

发展中的自旋电子学

自旋电子学是一门最新发展起来的涉及磁学、电子学以及信息学的交叉学科。自旋电子器件与普通半导体电子器件相比具有不挥发、低功耗和高集成度等优点。磁学、电子学和信息学的结合有望产生出自旋场效应晶体管、自旋发光二极管、调制器及用于量子计算、量子通信等装置的新型器件。     

开发集装箱运输学习领域课程方案的研究

学习领域课程方案在课程结构上摒弃了学科结构系统化的原则,提出了“工作过程系统化”的思想,是职业教育课程理论与开发的一个革命性尝试。通过高职物流管理专业的集装箱运输课程,对学习领域课程方案进行了探讨。     

应用Base64编码在SOAP中传输文件

从SOAP协议的概念出发,探讨了SOAP消息的结构．介绍了Base64编码技术的定义、规则．阐述了应用Base64编码技术在SOAP消息中传输二进制文件的方法．     

中板在铁路运输中窜出事故分析

本文通过对《铁路货物装载加固定型方案》所装中板在运输途中窜出事故现场进行测量和分析,从车辆运行的振动形态、中板上的作用力以及中板的紧急制动状态诸方面对窜出事故因素进行了探讨。并提出了防止事故发生的装载改进措施。     

PRESSURE DROP IN THE VERTICAL PNEUMATIC PIPE FOR POWDER CONVEYING

Based on the former research work of the authors,the resistance of differentsolid particle suspension flow in a vertical pipe is analysed,and investigatedexperimentally.The applicable formulas of pressure drop are presented.Two types of par-ticles,talcum powder and glass beads,are convcyed in the test which has been carried outat various air vclocities of 10 to 28 m/s and at the ratio of solids-air mass flow rateranged from 0 to 2.The experimental results show a good agreement with the calculatedones.     

Mystery of the Toxic Flea Dip: An Interactive Approach to Teaching Aerobic Cellular Respiration

We designed an interrupted case study to teach aerobic cellular respiration to major and nonmajor biology students. The case is based loosely on a real-life incident of rotenone poisoning. It places students in the role of a coroner who must determine the cause of death of the victim. The case is presented to the students in four parts. Each part is followed by discussion questions that the students answer in small groups prior to a classwide discussion. Successive parts of the case provide additional clues to the mystery and help the students focus on the physiological processes involved in aerobic respiration. Students learn the information required to solve the mystery by reading the course textbook prior to class, listening to short lectures interspersed throughout the case, and discussing the case in small groups. The case ends with small group discussions in which the students are given the names and specific molecular targets of other poisons of aerobic respiration and asked to determine which process (i.e., glycolysis, citric acid cycle, or the electron transport chain) the toxin disrupts.     

农村运输机械的最佳额定载质量研究

本文通过分析农村陆路货物运输作业过程的特点，建立了以农村运输机械基本结构特性参数和运输条件参数为参变量的机械运输作业生产率、各项成本的数学模型。并以此为基础，进一步推出运输机械的最佳额定载量数学模型。应用农村公路运输实测参数进行定量分析表明这些模型能较准确地反映实况。从而为因地制宜地选用农村运输机械提供了方法。这种模型的特征在于有关基本参数容易测取，经过模型计算能较大幅度地提高初级原始数据的信息价值。