Results 21 to 30 of about 1,506 (266)
Regenerating the epigenome [PDF]
The ability of some organisms to regenerate parts of their body has fascinated scientists for decades. The process of regeneration depends on the potential of certain cells to proliferate and contribute to the formation of new tissue. Organisms have evolved two strategies by which to achieve this: the maintenance of adult stem cells and the induction ...
Maria J, Barrero +1 more
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PERFORMANCE ENHANCEMENT OF A MINIATURE STIRLING CRYOCOOLER WITH A MULTI MESH REGENERATOR DESIGN [PDF]
A parametric study has been carried out using the software REGEN 3.3 to optimize the regenerator of a miniature Stirling cryocooler operating with a warm end temperature of 300 K and cold end temperature of 80 K.
KISHOR KUMAR V. V., BIJU T. KUZHIVELI
doaj
We focus on the Regenerator sharing, adaptive Modulation, Routing, and Spectrum assignment (RMRS) problem in a shared backup path protection based elastic optical network.
Hong Guo +3 more
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During liver regeneration after partial hepatectomy, normally quiescent hepatocytes undergo one or two rounds of replication to restore the liver mass by a process of compensatory hyperplasia. A large number of genes are involved in liver regeneration, but the essential circuitry required for ...
Fausto, Nelson +2 more
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AbstractLiver regeneration after partial hepatectomy is a very complex and well‐orchestrated phenomenon. It is carried out by the participation of all mature liver cell types. The process is associated with signaling cascades involving growth factors, cytokines, matrix remodeling, and several feedbacks of stimulation and inhibition of growth related ...
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Investigation of the thermal performance of cryogenic regenerator as a porous structure
An efficient cryocooler is one of the essential requirements for cooling of Infrared (IR) sensors to low temperatures in high resolution night vision systems.
Muhammad Shad
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Numerical investigation on a travelling wave thermoacoustic heat pump
A thermoacoustic heat pump heater is a device having the ability to produce heat from acoustic power. The heat pump investigated was composed of an acoustic driver, a branched tube, and a looped tube.
Maroua BEN NASR +3 more
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The ability of animals to replace injured body parts has been a subject of fascination for centuries. The emerging importance of regenerative medicine has reinvigorated investigations of innate tissue regeneration, and the development of powerful genetic tools has fueled discoveries into how tissue regeneration occurs.
Mayssa H, Mokalled, Kenneth D, Poss
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Improvement of technical performance of heat regenerator of GPU-3 Stirling engine
In this paper, in order of simulate the performance of Stirling engine a novel adiabatic model (irreversible adiabatic) is proposed for the Ground Power Unit Stirling engine, which has higher accuracy than previous models of this Stirling engine.
Mohammad Sheykhi, Mahmood Mehregan
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