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The engineer designing an ion exchange column operation usually will prefer to work with the simplest kinetic model and linear driving force approximations. The weakness ofthis approach is that any driving force law only regards the momentary exchange rate as a hnction of the solute concentration in the bulk solution and the average concentration in the particle, neglecting the effect of concentration profiles in the particle
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Fermentation and Biochemical Engineering Handbook microorganisms, mammalian cells, plant cells, and tissue. It is our sincere hope that the reader will find this chapter helpful in determining the best conditions for cultivation and the collection of scale-up data. Hopehlly, this knowledge will, in turn, facilitate the transformation of worthwhle research
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orientation of the vehicle is described in engineering t gular and linear position, velocity, acceleration, and often other factors. Engineers are tly confronted with
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第一节 目的基因的获取 第二节 基因体外重组 第三节 转基因 第四节 基因敲除与基因诊断 第五节 动物克隆技术
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Margaret MacVicar Faculty Fellow Professor of Aeronautics and Astronautics and Engineering Systems Co-Director, Leaders For Manufacturing and System Design and Management Programs
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Manager, New Aircraft Development United Airlines I joined United Airlines in 1967 and am presently Manager of New Aircraft Development, a post I have held since 1987. Assignments at United have included Manager of Operational Engineering, Factory Representative at Douglas (our first DC-10 deliveries), Manager of Fuel and Performance Control, Manager of Flight Standards and
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Technical Fellow, Flight Crew Operations Integration Boeing Commercial Airplanes Brian Kelly received a Bachelor of Science in Aerospace Engineering from the University of Southern California in 1978 and a Master of Science in Aeronautics and Astronautics from Stanford University
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• 基因工程 ( genetic engineering)、基因 克隆、DNA重组、DNA克隆、分子克隆 • 克隆(clone) 无性繁殖 – 应用酶学的方法,在体外将目的基因与载体 DNA结合成一具有自我复制能力的DNA分 子(复制子、重组体),继而通过转化或转 染宿主细胞、筛选出含有目的基因的转化子 细胞,再进行扩增、提取获得大量同一DNA 分子拷贝,或其表达产物
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是指对遗传信息的分子操作和施工,即把 分离到的或合成的基因经过改造,插入载体 中,导入宿主细胞内,使其扩增和表达,从而获 得大量基因产物,或者令生物表现出新的性状. 基因工程(genetic engineering)或 重组DNA技术(recombinant DNA technology) 二十世纪生物科学具有划时代意义的巨大 事件,推动了生物科学的迅猛发展,并带动了生 物技术产业的兴起
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94.1 Databases Database Abstraction • Data Models • Relational Databases • Hierarchical Databases • Network Databases • Architecture of a DBMS • Data Integrity and Security • Emerging Trends 94.2 Rule-Based Expert Systems
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