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Analysis: Subspecies fight for space on protected list
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DEBBIE ELLIOTT
Weekend Edition - Sunday (NPR)
11-27-2005
Analysis: Subspecies fight for space on protected list
Host: DEBBIE ELLIOTT
Time: 8:00-9:00 PM
DEBBIE ELLIOTT, host:
The Endangered Species Act is the country's most powerful tool for protecting rare plants and animals, but some experts say it should really be called the `Endangered Subspecies Act.' That's because one-fifth of the organisms on the list belong to small populations known as subspecies. Critics say far too many of these subgroups get federal protection. NPR's John Nielsen has more on a proposal to take one of these ...
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Sintering Fundamentals.
M2 Presswire
; ...September 2009-Research and Markets: Sintering Fundamentals(C)1994-2009 M2 COMMUNICATIONS...researchandmarkets.com/research/49d228/sintering_fundamen) has announced the addition of the "Sintering Fundamentals" report to their offering...
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Sintering densification and microstructural evolution of injection molding grade 17-4 PH stainless steel powder
Magazine article from: Metallurgical and Materials Transactions
; ...compacted 17-4 PH stainless steel during sintering in pure H^sub 2^ and H^sub 2...vertical furnace at various stages of sintering. The results show that in comparison...microstructure during H^sub 2^ + N^sub 2^ sintering. In pure H^sub 2^, however, delta...
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Sintering 2000: A report
Magazine article from: JOM
; ...India, was an appropriate location for Sintering 2000 (7th International Conference on Sintering), held February 22-25, 2000. Since...International Institute for the Science of Sintering (IISS) in Belgrade has been organizing...
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Constrained sintering of a sphere with radial density gradient: Viscous model
Magazine article from: Metallurgical and Materials Transactions
; ...been used to investigate the constrained sintering of a sphere with a radial density gradient...differential equations (PDEs) for the sintering process have been derived. The differential...gradient generated on heating during sintering is one of the reasons for the presence...
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LASER-SINTERING ENABLES AUTOMATED MANUFACTURE OF CROWNS/BRIDGES.
Newspaper article from: Biotech Equipment Update
; ...with e-Manufacturing using laser-sintering. This cost-effective method of making...manufacturing methods, such as laser-sintering, are all part of the process. New treatment...employing production methods like laser-sintering to provide dental restorations which...
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New sintering processes for porous ceramics.
Magazine article from: Ceramic Industry
; ...hot isostatic pressing and spark plasma sintering methods to produce porous ceramics With...Porous ceramics are usually fabricated by sintering for short periods of time or at low temperatures...produces ceramic foam. Conventional sintering processes for producing porous materials...
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Selective laser sintering: A qualitative and objective approach
Magazine article from: JOM
; ...presents an overview of selective laser sintering (SLS) work as reported in various journals and proceedings. Selective laser sintering was first done mainly on polymers and...parameters, and enhance the efficiency of the sintering machine. INTRODUCTION Selective laser...
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Research and Markets: Sintering Fundamentals.
Business Wire
; ...researchandmarkets.com/research/3edb88/sintering_fundamen) has announced the addition of the "Sintering Fundamentals" report to their offering...acknowledged experts who are active in sintering science. It includes seven invited reviews...
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Effect of Conventional and Microwave Sintering on the Properties of Yttria Alumina Garnet-Dispersed Austenitic Stainless Steel
Magazine article from: Metallurgical and Materials Transactions
; ...conventional) and 2.45 GHz microwave sintering furnace. The compacts were consolidated...through solid state as well as supersolidus sintering at 1200 C and 1400 C, respectively...couple with microwaves and heat to the sintering temperature rapidly (~45 C/min...
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A study on laser sintering of Fe-Cu powder compacts
Magazine article from: Metallurgical and Materials Transactions
; The sintering of Fe-Cu powder compacts by laser beams...as Cu content, laser output power, sintering time, and green density on the densification...temperature curves measured during laser sintering (LS) were also discussed in this article...
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