种植业生产效能计量单位的一种表示方法

1990年12月18日,国家技术监督局、国家土地局、农业部联合发出<关于改革全国土地面积计量单位的通知>,明确规定我国土地面积的法定计量单位为km2(平方千米)、hm2(公顷)和m2(平方米),同时规定自1992年1月1日起,废除在我国沿用了2 000多年的传统土地面积计量单位"亩"[1].亩与m2、hm2之间的换算关系为1亩=667 m2=0.066 7 hm2.     

扩招十年来中国普通高校经费收入的变化及解释

1998年以来,中国普通高校的筹资模式发生了巨大变革.中央高校生均总收入稳步上升,地方高校增长停滞,生均财政拨款趋于下降,两者之间的差异逐步扩大.地方高校已由"政府投入为主"的模式在现实中演变成"政府和个人投入两为主"的模式.将这种特征置于地区财政能力、公共资源竞争、居民收入以及国际比较的背景下,既可以看到客观、合理的一面,又可以看到不合理的一面.在稳定学费水平的政策规定下,地方高校未来收入的增长空间将主要、也只能依赖财政投入的增加.     

Parallel operation characteristics analysis of sewage source heat pump units in winter

Sewage source heat pump unit operates under partial load most of the time, and study on the law of coefficient of performance (COP) of the unit varying with load ratio can provide basis for the heat pump units running in high efficiency. A mathematical model determining COP, evaporation temperature and condensation temperature of a single unit was proposed. Under the condition of uniform load distribution, the model was established according to different ways of bearing partial load with the same type multiple units but different parallel operation models, and the operation characteristics of units were analyzed as well. Results show that the single screw water-source heat pump can maintain high COP only at 60%—100% load ratio, COP decreases sharply with the decrease of load ratio, and the units with parallel operation are controlled by the load ratio of a single unit according to the reduction of total load which can keep the average COP at high level within a wide load range.     

大工程观背景下开放型化工仿真实验的教学实践

在大工程观背景下分析了化工原理实验的地位。以石油炼制常减压蒸馏流程级仿真为例,从工程优势的角度探讨了开放型化工仿真实验教学的实践。最后,指出大工程观的理念指导下,开放型化工仿真实验的教学实践为培养创新型高素质工程人才做出了应有的贡献。     

从多重比较的角度看教育制度研究

大量的比较教育研究聚焦于教育制度。但是,这一关注点有时是模糊的,并且对分析单位缺乏清晰的界定。将教育制度作为比较教育研究的分析单位,有关的理论和方法问题需要深入细致的探讨。一些国家有多种教育制度,因而聚焦于教育制度的研究可以是国家内的,也可以是跨国家的。     

Determination of the volatile fraction of coal tar

The coal tar was qualitative and quantitative anMyzed by gas chromatography （GC） method. 74 components were identified exactly by gas chromatographY-mass spectrometry （GC-MS）. 31 components （37%） were quantitatively analyzed by gas chromatography-flame ionization detector （GC-FID）. The linearity, accuracy, precision, limit of detection （LOD） and limit of quantitative （LOQ） determination were inspected. The scope of quantitative analysis by CC was discussed. The experimental results of thermogravimetric analysis （TGA） proved that GC quantitative analysis of the coal tar was reliable.     

行动导向教学在高职“Linux系统管理”课程中的运用

在计算机网络技术专业"Linux系统管理"课程中应用行动导向教学,有利于丰富课程教学的形式和手段,为学生提供更加有效的学习方式,全面提高学生的综合职业能力。在课程教学实践中,运用行动导向教学,从课程的整体培养目标出发,对教学内容设计及实施、教学方法、教学考核形式进行改革。     

关于现代身份权性质的重新认识

古罗马法中的身份权是支配权,现代身份权与古代的身份权大相径庭。将身份权认定为支配权以偏概全,缺乏立论依据,难以解释一些具体的身份权的非支配权性。现代身份权是一个诸多权利的集合体,具有支配权、请求权、形成权的性质。     

The effect of sex and localised fatigue on triceps surae musculoarticular stiffness

Purpose: The main purpose of this study was to investigate the influence of fatigue on musculoarticular stiffness (MAS) of the ankle joint across sexes. Methods: Twenty-seven males and 26 females participated in the study. After baseline assessment of MAS and related variables, localised fatigue was induced in triceps surae using the standing heel-rise test during which the subjects were instructed to lift and drop the heel at a frequency of 0.5?Hz. When subjects were unable to continue due to exhaustion the test was terminated and another MAS test was performed soon after. Results: Significant higher triceps surae MAS was found in men compared to women (p?p??1 and from 14.5 to 13.9?KN?m^?1 in men and women, respectively. Percentage changes revealed, however, that in relative terms the changes in all the variables evaluated were similar (p?>?.01) between sexes, with MAS less than 5%. Conclusion: Despite the sex-related differences at baseline, fatigue seems to affect biomechanical properties of the ankle joint similarly in men and women.     

“零基预算+绩效”模式下高校二级教学单位经费核拨机制探究

为进一步深化预算体制改革,促进管理重心下移,扩大二级教学单位办学自主权,充分体现二级教学单位办学主体地位,促进高校内涵、质量、特色协调发展,提高高校的整体办学水平和效益,高校急需探索出适合自身健康发展的经费核拨模式。传统的经费核拨模式存在主观性强,准确性差,标准定额制定不合理、不科学,缺乏弹性和绩效指标调节机制等问题,严重限制了高校科学发展的步伐。为进一步调动高校二级教学单位当家理财的积极性,结合学校综合财力和实际发展情况,提出了"零基预算+绩效"经费核拨模式,并针对二级教学单位具体情况应用合理选择绩效调节因素权数,科学统计绩效量化指标,设计出高校二级教学单位日常运行经费核拨公式,实现经费核拨与办学质量相挂钩,让预算数据在阳光下运行,提升预算绩效评价的透明度,使高校有限的经费资源得到最优化配置。