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1999

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Articles 2551 - 2555 of 2555

Full-Text Articles in Physical Sciences and Mathematics

Contraction Of The Model For The Bray-Liebhafsky Oscillatory Reaction By Eliminating Intermediate I2o, Zeljko D. Cupic Dec 1998

Contraction Of The Model For The Bray-Liebhafsky Oscillatory Reaction By Eliminating Intermediate I2o, Zeljko D. Cupic

Zeljko D Cupic

No abstract provided.


Semi-Insulating Semiconductor Heterostructures: Optoelectronic Properties And Applications, David D. Nolte Dec 1998

Semi-Insulating Semiconductor Heterostructures: Optoelectronic Properties And Applications, David D. Nolte

David D Nolte

This review covers a spectrum of optoelectronic properties of and uses for semi-insulating semiconductor heterostructures and thin films, including epilayers and quantum wells. Compensation by doping, implantation, and nonstoichiometric growth are described in terms of the properties of point defects and Fermi level stabilization and pinning. The principal optical and optoelectronic properties of semi-insulating epilayers and heterostructures, such as excitonic electroabsorption of quantum-confined excitons, are described, in addition to optical absorption by metallic or semimetallic precipitates in these layers. Low-temperature grown quantum wells that have an arsenic-rich nonstoichiometry and a supersaturated concentration of grown-in vacancies are discussed. These heterostructures experience …


Microlensing Of Circumstellar Envelopes I. Simplified Considerations For Diagnosing Radial And Azimuthal Flow., R. Ignace, M. A. Hendry Dec 1998

Microlensing Of Circumstellar Envelopes I. Simplified Considerations For Diagnosing Radial And Azimuthal Flow., R. Ignace, M. A. Hendry

Richard Ignace

This paper presents first results on the line profile shapes from a circumstellar envelope in bulk motion as modified by a microlensing event. Only geometrically and optically thin spherical shells in uniform expansion or rotation are considered here so as to emphasise the information content available in the profile shapes. In particular it is demonstrated that for the case of expansion, the line emission can increase by significant factors and the time variation of the profile shape is symmetric about line centre. For uniform rotation the line emission also increases significantly, but the time evolution of the profile shape is …


How Does Krygen Xl Truly Work?, Eam Smith Dec 1998

How Does Krygen Xl Truly Work?, Eam Smith

eam smith

Krygen XL is a male improvement condition that is exceptionally expected for men to assemble moxy and s3xual need. This shocking upgrade will empower you to get back your virility in a short length. Normally, it is shocking for men to recover s3xual power due to various components. Krygen XL male upgrade will heighten your s3xual introduction and engage to satisfy the accessory in bed. Krygen XL UK works all around enough in men by boosting up the testosterone level. It is set up by completely ordinary fixings and impacts your body with no damaging substance. This thing will manufacture the circulation system in …


What Are The Ingredients Used In Keto Advanced Weight Loss?, Edam Smith Dec 1998

What Are The Ingredients Used In Keto Advanced Weight Loss?, Edam Smith

edam smith

Keto Advanced Weight Loss tends to be useful to find out about an enhancement by becoming acquainted with its fixings. Notwithstanding, Keto Advanced is in the one of a kind circumstance of being a piece too new to even consider having its fixings list accessible. What's more, that implies we can't really know how these fixings work or how they may influence you. Notwithstanding, the fixings ought to be imprinted on the jug name in the event that you buy the item. Along these lines, remember that – you ought to get some information about the fixings before you take …