论如何引导学生利用网络资源

首先阐述学生的信息能力的重要性;其次分析引导学生正确利用网络资源的重要性;最后针对当前现状,结合教育教学实践,提出引导学生正确利用网络资源的几点建议,即重视网络资源的运用、组织网络资源利于学生查询、积极推进网络资源与课程整合。     

如何在日常驾驶过程中节约使用燃油

本文根据自己以往汽车驾驶的经历,简要论述在日常工作中,应如何根据车辆特点,在认真遵守交通法规的基础上,掌握好在油区道路上安全行车以及最大限度节约燃油的方法,从而达到高效、快捷地完成各项交通运输的任务。     

脱硫石膏作缓凝剂的试验及应用

1 前言 脱硫石膏是用煤发电厂烟气脱硫时由SO2和CaCO3反应生成的一种工业副产石膏,主要成分为CaSO4·2H2O,颜色浅黄,其酸碱度呈中性或略偏碱性,水分约为14%～22%,化学成分和天然石膏相近,还含有少部分杂质,如未反应完全的CaCO3,石灰石中含有的其它杂质,一般量较少.     

浅谈质量监督检验工作如何做好科技创新

增强自主创新能力是党中央、国务院对科技发展的总要求,国家质检总局要求进一步加强质检科技工作,实现质检科技创新。对此,结合质检工作的具体情况,从科技管理创新、服务创新、人才培养创新等方面进行了分析和探讨,以实现科技兴检的目标。     

Palm Oil Products - Why and How to Use them

Palm oil is a very versatile oil. Its techno-economic strength is based on the following factors: 1. It is often cheaper than soyabean oil; 2. it can be used as a major component of consistent or solid fats without hydrogenation; 3. Malaysian refined palm oil requires only little reprocessing before use; 4. Palm oil possesses specific properties of value. It imparts Beta prime crystallinity on blends. It has great stability at frying temperatures. It contains no trans double bonds. A palm mid-fraction is highly compatible with cocoabutter. A number of specific food applications and formulae are discussed. Soap is the largest technical use of fats. Palm stearin is competitive with tallow in price, and may offer cost savings because it requires less clean-up for soap manufacture.     

浅谈高分子教学资源的开发与利用

高分子材料与工程专业的研究对象与生产生活紧密相连,相关企业对人才的选拔侧重于其解决实际问题能力和创新能力的高低。这种综合能力的培养需要转变传统的教学方式,充分开发与利用各类高分子教学资源,创设学习情景,丰富教学内容,从而激发学生的学习兴趣,培养学生的综合素质。     

如何利用加氢裂化全馏分尾油生产润滑油和石蜡

针对某石化工作实际情况,在充分利用现有装置的基础上,分别提出两套利用加氢裂化尾油生产石蜡与润滑油的工艺方案,并对产品质量与装置运行进行了深入分析。     

大口径闸阀在半水煤气中的应用与检修

通过对生产实践中设备检修的分析，提出了大口径闸阀在半水煤气等介质中，应选用明杆闸阀的观点和不停车检修的可能性。     

高分子教学中如何合理使用教学媒体

多媒体教学作为一种先进的教学手段在高分子教学中的应用越来越普遍,但很多教师对多媒体教学的理解却比较片面,误以为使用课件授课即是多媒体教学。事实上,教学媒体的种类有很多,教师在教学中应综合考虑多方面因素对教学媒体进行合理选用和优化组合。     

如何利用制度和标准做好物资的验收工作

随着我国经济水平的不断提高,石油行业也不断深入发展。油田是我国基础性能源基地,在石油的生产过程中会需要大量的物质供给,因此,如何能够做好物资管理以及验收工作对石油的生产经营具有重要意义。因此对如何利用制度和标准来指导物资验收工作,进行进一步探讨,希望提供一些借鉴。     

How to Use the Absorption Data for Design and Scale-Up of Packed Columns

In this paper it is presented a model for calculation of mass transfer in dumped packed columns or in columns with orderly arranged packings, valid for systems, the mass transfer resistance of which is mainly located in the vapor resp. gas side. It can be applicated both for rectifications and absorptions. Based on numerous experiments the validity of this model will be proved and it is shown that absorption test results can be transferred on rectifications with an accuracy which is sufficient for industrial applications. Furthermore it is shown with metallic Pall ring packings how results received in test columns of various diameters can be applicated for precalculation of columns with industrial dimensions. To carry out this scaling-up a special diagram was developed.     

绿泥石石英片岩用作硅铝铁质原料的试验与生产

1 前言 水泥企业所用硅铝质原料多为新生界和中生界地层的粘土、黄土、泥岩、页岩、粉砂岩等.赋存于元古界(Pt)地层中的拉他加依绿泥石石英片岩矿区位于306省道(阿克苏～乌什公路)17km处,虽然还没有用作水泥原料的先例,但因其含有硅、铝、铁、钙、镁等多种元素,有用作水泥硅铝铁质原料的可能性,另外该矿距本公司仅约21km,较其它所用原燃料距厂皆近(表1),且储量丰富,故具有研究使用价值.     

浅谈如何提高“高分子材料分析与测试技术”课程的教学质量

"高分子材料分析与测试技术"是高等院校本科高分子材料科学与工程专业的一门必修课。本文结合自身管理仪器和从事理论教学的经验和体会,从教学内容、授课方式、强化实验等方面入手,对如何提高本课程的教学质量进行了探讨。     

Use of the Blister Test to Study the Adhesion of Brittle Materials. Part I. Test Modification and Validation

In the traditional configuration of the blister test, where the adhesive sheet is mounted on top of the substrate of interest, a brittle or fragile adhesive exhibits early cohesive failure during pressurization, preventing the measure of the interfacial fracture energy F. To permit the determination of this important materials system parameter in ice-substrate systems, we modified the blister test to an inverted configuration, where the substrate is the continuous top sheet, and the brittle adhesive (ice) is in the form of a thin interlayer under the substrate, but mounted on a massive, inert base. Several aspects of the modified test were examined, and the test was found to be valid within the range evaluated.     

Use of the Blister Test to Study the Adhesion of Brittle Materials. Part I. Test Modification and Validation

In the traditional configuration of the blister test, where the adhesive sheet is mounted on top of the substrate of interest, a brittle or fragile adhesive exhibits early cohesive failure during pressurization, preventing the measure of the interfacial fracture energy F. To permit the determination of this important materials system parameter in ice-substrate systems, we modified the blister test to an inverted configuration, where the substrate is the continuous top sheet, and the brittle adhesive (ice) is in the form of a thin interlayer under the substrate, but mounted on a massive, inert base. Several aspects of the modified test were examined, and the test was found to be valid within the range evaluated.     

疫苗生产场地变更质量可比性研究的总体思考

由于疫苗生产产业化和法规升级等因素的要求,疫苗生产场地需要进行变更。可比性研究有利于控制场地变更对疫苗安全性、有效性带来的风险,是变更成功的桥梁。本文结合国内外技术指导原则的解读和疫苗产品的特点,对我国疫苗场地变更的质量可比性研究作一综述。