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关键词： 应用技术   无机   化学实验   教学改革  

摘要： 针对目前大学无机及分析化学实验课程所存在的一些弊端,本文提出对教学内容改革的建议,使内容富有层次化。改革化学实验的环节,使实验预习、实验过程、课后辅导逐步形成一体化。改革化学教学模式以提升教学效果。对大学化学实验课程的实验环节、教学手段以及教学模式等三方面进行改革,培养学生用实事求是、严谨的态度对待化学实验课程教学,提高学生的实际动手操作能力、分析问题的能力。

关键词： 应用型   分析化学实验   教学改革  

摘要： 本着"厚基础,求创新"的原则对分析化学实验教学体系进行系统改革,从分析化学实验的教学大纲、教学内容、教学模式到实验考核等方面进行教学改革,进一步增强学生的动手操作能力,培养学生创新思维、自主实验,使同学们更好地适应社会、服务社会,真正地培养应用型、创新型人才。

关键词： 应用化学   分析化学实验   教学改革  

摘要： 针对咸阳师范学院应用化学专业分析化学实验中存在的问题,我们从实验内容、教学方法、考核制度等方面对分析化学实验教学进行了改革尝试,目的是通过实验课改革以达到促进课程知识与实践相结合、提高学生的综合分析与创新能力。

关键词： 分析化学   课程模块   教学方法  

摘要： 根据对其他高校历届毕业生的调查,学生反映比较突出的问题是部分基础课与专业课衔接不够,学生难以将各个专业知识点进行串联,基础课缺少清晰的方向性等。在课程建设的新形势下,针对该课程的特点和存在的问题,本文改进了教学方法,对制药工程专业的《分析化学》课程建设提出了融知识传授、能力培养、素质教育为一体的一些思考与尝试。

关键词： 分析化学   催化剂酸性   程序升温脱附   吡啶  

摘要： 催化剂表征中,测定催化剂酸性在催化领域非常重要。对吸附仪和红外原位池进行改进,结果表明,吡啶-热脱附-红外法具有快速、多功能、重复性好和数据可靠的特点,整个实验过程可以在3 h内完成,为大量催化剂酸性的确定提供可行的方法。吡啶热脱附数据与吡啶红外结果相符,两者结合可以区分酸中心类型,比较酸中心强度,并且脱附过程可以分阶段进行定性分析,对指导催化剂的制备和催化机理的研究具有重要意义。

关键词： 分析化学   化学实验  

ISBN: (纸本)9787313133199

摘要： 本书介绍了实验室基本规则、实验室安全、化学分析常用仪器的规格和使用等内容。全书内容涉及化工生产、环境、材料、生物、食品、药品等领域。

关键词： chemical chromaticity   analytical reagents   test methods  

摘要： Published data on the application of the chromaticity method in analytical chemistry in the past 15 years are systematized and analyzed. Attention is focused on the analytical aspects of the chromaticity method;its capabilities, prospects for its use in analytical chemistry, and new versions of analytical signal measurements are considered.

关键词： Immunology   Cancer   Peptides and proteins   Antigens   Biopolymers  

摘要： Humoral immune responses against tumor-associated antigens (TAAs) or cancer/testis antigens (CTAs) aberrantly expressed in tumor cells are frequently observed in cancer patients. Recent clinical studies have elucidated that anticancer immune responses with increased levels of anti-TAA/CTA antibodies improve cancer survival rates. Thus, these antibody levels are promising biomarkers for diagnosing the efficiency of cancer immunotherapy. Full-length antigens are favored for detecting anti-TAA/CTA antibodies because candidate antigen proteins contain multiple epitopes throughout their structures. In this study, we developed a methodology to prepare purified water-soluble and full-length antigens by using cysteine sulfhydryl group cationization (S-cationization) chemistry. S-Cationized antigens can be prepared from bacterial inclusion bodies, and they exhibit improved protein solubility but preserved antigenicity. Anti-TAA/CTA antibodies detected in cancer patients appeared to recognize linear epitopes, as well as conformational epitopes, and because the frequency of cysteine side-residues on the epitope-paratope interface was low, any adverse effects of S-cationization were virtually negligible for antibody binding. Furthermore, S-cationized antigen-immobilized Luminex beads could be successfully used in highly sensitive quantitative-multiplexed assays. Indeed, patients with a more broadly induced serum anti-TAA/CTA antibody level showed improved progression-free survival after immunotherapy. The comprehensive anti-TAA/CTA assay system, which uses S-cationized full-length and water-soluble recombinant antigens, may be a useful diagnostic tool for assessing the efficiency of cancer immunotherapy.

关键词： Chemical-looping   CO2 capture   Bubbling bed fluidization   Reactor design   Simulation  

摘要： A three-phase hydrodynamic model is employed for the analysis of experimental data of chemical-looping reduction with nickel-based oxygen carriers and methane as the fuel. The model rigorously accounts for the mass, energy, and pressure balances, and the effect of oxygen carrier entrainment in the freeboard region. Model predictions are in good agreement with the relevant experimental data. The capability of the model to be used in the scale-up of fixed-bed kinetic studies of oxygen carriers to fluidized bed pilot-scale reactors is illustrated. The generality and validity of the model are analyzed, so that it can be used for further reactor design studies. In particular, sensitivity analyses, in terms of the crucial hydrodynamic parameters and correlations are carried out and the effects of important parameters, such as bubble size, mass transfer, oxygen carrier entrainment and reactions in the freeboard, on the performance of the chemical-looping reducer are investigated. (C) 2015 Elsevier Ltd. All rights reserved.

关键词： CONFERENCES & conventions   PUBLISHERS & publishing   CHEMISTRY periodicals   PERIODICALS -- Articles   PERIODICAL publishing   ARTICLES (Published materials)