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Biomedical Engineering and Bioengineering Commons

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Physical Sciences and Mathematics

Ji-Huan He

SelectedWorks

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Articles 1 - 3 of 3

Full-Text Articles in Biomedical Engineering and Bioengineering

Soliton Perturbation, Ji-Huan He Jan 2009

Soliton Perturbation, Ji-Huan He

Ji-Huan He

Glossary Soliton A soliton is a nonlinear pulse-like wave that can exist in some nonlinear systems. The isolated wave can propagate without dispersing its energy over a large region of space; collision of two solitons leads to unchanged forms, solitons also exhibit particlelike properties. Soliton perturbation theory The soliton perturbation theory is used to study the solitons that are governed by the various nonlinear equations in presence of the perturbation terms. Homotopy perturbation method The homotopy perturbationmethod is a useful tool to the search for solitons without the requirement of presence of small perturbations. In this method, a homotopy is ...


Solitons And Compactons, Ji-Huan He, Shun-Dong Zhu Jan 2009

Solitons And Compactons, Ji-Huan He, Shun-Dong Zhu

Ji-Huan He

Article Outline Glossary Definition of the Subject Introduction Solitons Compactons Generalized Solitons and Compacton-like Solutions Future Directions Cross References Bibliography Glossary Soliton A soliton is a stable pulse-like wave that can exist in some nonlinear systems. The soliton, after a collision with another soliton, eventually emerges unscathed. Compacton A compacton is a special solitary traveling wave that, unlike a soliton, does not have exponential tails. Generalized soliton A generalized soliton is a soliton with some free parameters. Generally a generalized soliton can be expressed by exponential functions. 8458 S Solitons and Compactons Compacton-like solution A compcton-like solution is a special ...


Electrospun Nanofibres And Their Applications, Ji-Huan He, Yong Liu, Lu-Feng Mo, Yu-Qin Wan, Lan Xu Jan 2008

Electrospun Nanofibres And Their Applications, Ji-Huan He, Yong Liu, Lu-Feng Mo, Yu-Qin Wan, Lan Xu

Ji-Huan He

This Update covers all aspects of electrospinning as used to produce Nanofibres. It contains an array of colour diagrams, mathematical models, equations and detailed references. It will be invaluable to anyone who is interested in using this technique and also to those interested in finding out more about the subject. Electrospinning is the cheapest and the most straightforward way to produce nanomaterials. Electrospun Nanofibres are very important for the scientific and economic revival of developing countries. Electrospinning was developed from electrostatic spraying and now represents an attractive approach for polymer biomaterials processing, with the opportunity for control over morphology, porosity ...