نتایج جستجو برای: 50h

تعداد نتایج: 74  

2015
Shadab A. Rahman Oscar Castanon-Cervantes Frank A.J.L. Scheer Steven A. Shea Charles A. Czeisler Alec J. Davidson Steven W. Lockley

Various aspects of immune response exhibit 24-h variations suggesting that infection susceptibility and treatment efficacy may vary by time of day. Whether these 24-h variations are endogenous or evoked by changes in environmental or behavioral conditions is not known. We assessed the endogenous circadian control and environmental and behavioral influences on ex-vivo lipopolysaccharide stimulat...

1999
Riccardo Giovanelli Daniel A. Dale Martha P. Haynes Luis E. Campusano

Zehavi et al. (1998) have suggested that the Hubble flow within 70h Mpc may be accelerated by the existence of a void centered on the Local Group. Its underdensity would be ∼ 20%, which would result in a local Hubble distortion of about 6.5%. We have combined the peculiar velocity data of two samples of clusters of galaxies, SCI and SCII, to investigate the amplitude of Hubble distortions to 20...

F. Abbasi Nargesi R. Azari Khosroshahi

In this research, mechanical alloying was used to produce Ti-50Al, Ti-45Al-5Cr and Ti-45Al-5W (at%) alloys. The effect of ternary addition (Cr and W) on microstructure and production efficiency of TiAl alloy were investigated. Alloying was performed in a planetary mill and the milling time varying from 5 to 70h. The structural evaluation in these powders was done by X-ray diffraction (XRD) tech...

Journal: :journal of ultrafine grained and nanostructured materials 2014
alireza abdollahi ali alizadeh

in this study, ultrafine grained 2024 al alloy based b4c particles reinforced composite was produced by mechanical milling and hot extrusion. mechanical milling was used to synthesize the nanostructured al2024 in attrition mill under argon atmosphere up to 50h. a similar process was used to produce al2024-5%wt. b4c composite powder. to produce trimodal composites, milled powders were combined w...

Journal: :Nihon Hotetsu Shika Gakkai zasshi 2005
Yoshiharu Yamamura Masakazu Kurachi Ryuji Yokoya Tatuo Murata Ryugo Nonogaki

PURPOSE The present investigation evaluated the relation between the dynamic properties of the bilateral condyle in habitual maximum opening and closing movement and the occlusal force balance with clenching force. METHODS Nine normal adults participated in this study. The translation of bilateral condyle and the rotation of intercondylar axis in habitual maximum opening and closing movement ...

1999
David H. Weinberg Jeffrey P. Gardner

We review theoretical approaches to the study of galaxy formation, with emphasis on the role of hydrodynamic cosmological simulations in modeling the high redshift galaxy population. We present new predictions for the abundance of star-forming galaxies in the LCDM model (inflation + cold dark matter, with Ωm = 0.4, ΩΛ = 0.6), combining results from several simulations to probe a wide range of r...

Journal: : 2022

Rosa canina belongs to rosacea family. Rosa. has a high concentration of phyto-constituents such as flavonoids, carotenoids, triterpene and vitamins vitamin C, E, A have an anti-inflammatory antioxidant
 
 effects. The antioxidant effect presence large quantities phytochemicals flavonoids polyphenols. been used for arthritis gout, osteoarthritis, urinary tract disorder, diabetes, infl...

Journal: :international journal of nanoscience and nanotechnology 2012
f. abbasi nargesi r. azari khosroshahi

in this research, mechanical alloying was used to produce ti-50al, ti-45al-5cr and ti-45al-5w (at%) alloys. the effect of ternary addition (cr and w) on microstructure and production efficiency of tial alloy were investigated. alloying was performed in a planetary mill and the milling time varying from 5 to 70h. the structural evaluation in these powders was done by x-ray diffraction (xrd) tech...

Co3W2Si intermetallic compound was synthesized by mechanical alloying (MA) of W, Co and Si elemental powder mixtures. The phase composition of the milled products was evaluated by X-ray diffraction (XRD) analysis. Morphological evolutions were characterized by transmission electron microscopy (TEM). The results showed that high energy ball milling performed in the present work led to the format...

In this study, ultrafine grained 2024 Al alloy based B4C particles reinforced composite was produced by mechanical milling and hot extrusion. Mechanical milling was used to synthesize the nanostructured Al2024 in attrition mill under argon atmosphere up to 50h. A similar process was used to produce Al2024-5%wt. B4C composite powder. To produce trimodal composites, milled powders were combined w...

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