Zobrazeno 1 - 10
of 1 804
pro vyhledávání: '"M. Mokhtar"'
Publikováno v:
Water Practice and Technology, Vol 18, Iss 2, Pp 341-355 (2023)
In the flow in channels with extended boundaries, the channel sides are extended covering parts of the channel flow surface symmetrically or asymmetrically. The pressure on the top surface remains approximately atmospheric, while the distributions of
Externí odkaz:
https://doaj.org/article/e028caeefae24be5b1b14fd32de95b08
Publikováno v:
Water Practice and Technology, Vol 16, Iss 3, Pp 935-945 (2021)
Local scour is the most significant cause of bridge failure. Providing a short abutment with a straight slot has proved to be an effective method for reducing scour at this abutment. In this study, laboratory experiments have been conducted to invest
Externí odkaz:
https://doaj.org/article/72cf7af2100243b69ad094a4d4a9aaa0
Publikováno v:
Pedagogics, Psychology, Medical-Biological Problems of Physical Training and Sports, Vol 23, Iss 6 (2019)
Purpose: The purpose of this study is to compare two cold water immersion (CWI) protocols, continuous and fractionated, to optimize the recovery of Handball players after on recovery from exercise resulting in exercise-induced muscle damage. Material
Externí odkaz:
https://doaj.org/article/d22bef44d9434966a96f0800df7ddd5e
Publikováno v:
Le Matematiche, Vol 69, Iss 1, Pp 36-56 (2014)
In this paper we introduce and study some $q$-Sobolev type spaces by using the harmonic analysis associated with the q-Rubin operator. In particular, embedding theorems for these spaces are established. Next, we introduce the q-Rubin potential spaces
Externí odkaz:
https://doaj.org/article/08dddce0cc124056b0adb57721ca7601
Publikováno v:
IEEE Photonics Journal, Vol 4, Iss 4, Pp 1087-1094 (2012)
A compact multiwavelength Brillouin fiber laser (BFL) with 51 stable double Brillouin frequency shift channels is demonstrated at room temperature. It uses a ring cavity with a 3-dB coupler for separation of odd-ordered and even-ordered Brillouin Sto
Externí odkaz:
https://doaj.org/article/47d23ca10dd34d6eacb84f73e5b29f0c
Publikováno v:
International Islamic University Malaysia Engineering Journal, Vol 7, Iss 1 (2010)
This paper presents a comprehensive mathematical model that calculates heat and mass transfer from the skin surface and fur layer of a cow. The model predicts evaporative, respiratory, convective, radiant and urine heat losses for different levels of
Externí odkaz:
https://doaj.org/article/5b7debc7b1a94bf0b2added4852442d5
Autor:
M. Mokhtar
Publikováno v:
Adsorption Science & Technology, Vol 21 (2003)
A CuO/Al 2 O 3 solid containing 0.2 mol% CuO (0.2CuO/Al 2 O 3 ) and three MoO 3 -doped variants of this material were all prepared via the wet impregnation method, the amount of dopant added to the CuO/Al 2 O 3 solid being 0.25, 1.0 or 2.0 mol% MoO 3
Externí odkaz:
https://doaj.org/article/65e778cf84c04bb0aa8944f338334a69
Publikováno v:
Adsorption Science & Technology, Vol 19 (2001)
Pure and ZnO-doped Co 3 O 4 /Al 2 O 3 catalysts were subjected to γ-irradiation (0.2–1.6 MGy). These catalysts were employed for the conversion of ethanol and isopropanol at 250–400°C using micropulse techniques. The results obtained showed tha
Externí odkaz:
https://doaj.org/article/ad93ffaa65b04e0a918cff731c58a158
Publikováno v:
Adsorption Science & Technology, Vol 19 (2001)
The surface and catalytic properties of pure and Fe 2 O 3 -doped Co 3 O 4 /MgO solids were investigated. The extent of loading was maintained at 38 wt% Co 3 O 4 and the amount of dopant varied between 1.2 wt% and 11.0 wt% Fe 2 O 3 . The pure and dope
Externí odkaz:
https://doaj.org/article/cdde35b9bc0045d4b1ea3fb86c523e1e
Publikováno v:
Adsorption Science & Technology, Vol 16 (1998)
In order to investigate the effect of Na 2 O doping (0.75–4.5 mol%) on metal oxide-support interactions, the surface and catalytic properties of the CuO–ZnO/Al 2 O 3 system have been studied using XRD, nitrogen adsorption at -196°C and the catal
Externí odkaz:
https://doaj.org/article/0ad9f0e7288643cc8a7b2a8075f4355c