Thứ Ba, 12 tháng 7, 2011

Exercises 4, page 199 , chapter 9 (Nguyen Quang Minh, 08ece)


Exercise 4           
Bioengineering   
Biological engineering or bioengineering (including biological systems engineering) is the application of concepts and methods of physics, chemistry, mathematics, and computer science to solve problems in life sciences, using engineering's own analytical and synthetic methodologies and also its traditional sensitivity to the cost and practicality of the solution arrived at. In this context, while traditional engineering applies physical and mathematical sciences to analyze, design and manufacture inanimate tools, structures and processes, biological engineering uses the same sciences, as well as the rapidly-developing body of knowledge known as molecular biology, to study many aspects of living organisms.
Biological engineering can be differentiated from its roots of pure biology or classical engineering in the following way. Biological studies often follow a reductionist approach in viewing a system on its smallest possible scale which naturally leads toward tools such as functional genomics. Engineering approaches, using classical design perspectives, are constructionist, building new devices, approaches, and technologies from component concepts. Biological engineering utilizes both kinds of methods in concert, relying on reductionist approaches to identify, understand, and organize the fundamental units which are then integrated to generate something new.]In addition, because it is an engineering discipline, biological engineering is fundamentally concerned with not just the basic science, but the practical application of the scientific knowledge to solve real-world problems in a cost-effective way.
Biological Engineers or bioengineers are engineers who use the principles of biology and the tools of engineering to create usable, tangible, economically viable products. Biological Engineering employs knowledge and expertise from a number of pure and applied sciences, such as mass and heat transfer, kinetics, biocatalysts, biomechanics, bioinformatics, separation and purification processes, bioreactor design, surface science, fluid mechanics, thermodynamics, and polymer science. It is used in the design of medical devices, diagnostic equipment, biocompatible materials, renewable bioenergy, ecological engineering, and other areas that improve the living standards of societies.
In general, biological engineers attempt to either mimic biological systems to create products or modify and control biological systems so that they can replace, augment, or sustain chemical and mechanical processes. Bioengineers can apply their expertise to other applications of engineering and biotechnology, including genetic modification of plants and microorganisms, bioprocess engineering, and biocatalysis.
Because other engineering disciplines also address living organisms, the term biological engineering can be applied more broadly to include agricultural engineering and biotechnology. In fact, many old agricultural engineering departments in universities over the world have rebranded themselves as agricultural and biological engineering or agricultural and biosystems engineering.

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