Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Issam Ahmed"'
Publikováno v:
Polímeros, Iss 0 (2018)
Abstract In this research, palm oil and soy oil were used as a natural polyol to prepare novel poly(silyl ether)s. Palm oil and soy oil were first converted to monoglyceride by one step via alcoholysis process in the presence of 0.1% CaO as a catalys
Externí odkaz:
https://doaj.org/article/48d720127787434a99f4a2d5e65fc3cc
Autor:
Alyson Jayne Moyes, Rebecca May Lamb, Peter Ella-Tongwiis, Anish Pushkaran, Issam Ahmed, Iqbal Shergill, Stephen Fôn Hughes
Publikováno v:
PLoS ONE, Vol 12, Iss 7, p e0179599 (2017)
BACKGROUND:Currently there is limited research documenting the changes in blood parameters, following Flexible Ureterorenoscopy. This study aims to determine whether there are any changes in haematology and biochemistry parameters, following Flexible
Externí odkaz:
https://doaj.org/article/cd024300c7174d9e8a247afce519b37c
Autor:
H. P. S. Abdul Khalil, Issam Ahmed Mohammed, Md. Sohrab Hossain, N.A. Sri Aprilia, Edy Budiarso, Enih Rosamah, Rudi Dungani
Publikováno v:
BioResources, Vol 9, Iss 4, Pp 6614-6626 (2014)
Agatis wood (Agathis lorantifolia Salisb.) was impregnated with a combination of styrene and methyl methacrylate and compressed to a strain of 50% to improve dimensional stability and termite resistance. The changes in cell structure were analyzed to
Externí odkaz:
https://doaj.org/article/b65c1f5e8bad434da0255a1cc2271da1
Publikováno v:
Molecules, Vol 17, Iss 9, Pp 10974-10993 (2012)
A structural study of epoxidized natural rubber (ENR-50) and its cyclic dithiocarbonate derivative was carried out using NMR spectroscopy techniques. The overlapping 1H-NMR signals of ENR-50 at δ 1.56, 1.68–1.70, 2.06, 2.15–2.17 ppm were success
Externí odkaz:
https://doaj.org/article/cb25c50c99f44005bbad5f6ecdb540f5
Publikováno v:
Molecules, Vol 17, Iss 1, Pp 645-656 (2012)
The phenolic Schiff bases I–VI were synthesized by condensation reactions between various diamines, namely o-dianisidine, o-tolidine and ethylenediamine with vanillin or p-hydroxybenzaldehyde and subsequent reactions between these phenolic Schiff b
Externí odkaz:
https://doaj.org/article/415cc28042f14bb5b79e841a1ed5f939
Autor:
Issam Ahmed Mohammed, Asniza Mustapha
Publikováno v:
Molecules, Vol 15, Iss 10, Pp 7498-7508 (2010)
Maleic anhydride was reacted with p-aminophenol and p-toluidine in the presence of di-phosphorus pentoxide (P2O5) as a catalyst to produce two compounds: N-(4-hydroxy-phenyl)maleimide (I) and N-(4-methylphenyl)maleimide (II). The new azo compounds I(
Externí odkaz:
https://doaj.org/article/fbffda8091504bf9960981d0b9f76159
Publikováno v:
Molecules, Vol 15, Iss 5, Pp 3260-3269 (2010)
A series of new mesogenic azomethine diols were successfully synthesized by condensation reactions between various chloroalkanols and N,N'-bis(4-hydroxy)-benzylidene-o-toluidine (1). The structures of these compounds were confirmed by CHN, FT-IR, 1H-
Externí odkaz:
https://doaj.org/article/60b6bc6003f74a4f985a92d7e7e9b34d
Autor:
Marc Alnot, Hervé Rinnert, Mohamed Badreddine Assouar, Mohammed Belmahi, Hooi Ling Lee, Issam Ahmed Mohammed
Publikováno v:
Materials, Vol 3, Iss 3, Pp 2069-2086 (2010)
Two new mesogenic monomers, namely 3,3’-dimethoxy-4,4’-di(hydroxyhexoxy)-N-benzylidene-o-Tolidine (Ia) and 4,4’-di(6-hydroxyhexoxy)-N-benzylidene-o-Tolidine (IIa), were reacted with cadmium sulfide (CdS) via an in situ chemical precipitation me
Externí odkaz:
https://doaj.org/article/2d6bf08e19ab4a969810f19c4d276663
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 6, Pp o1249-o1250 (2010)
The title compound, C27H45Cl, is a second monoclinic polymorph which crystallizes in the space group P21 with four crystallographically independent molecules in the asymmetric unit. The structure was previously reported [Bernal et al. (1940). Philos.
Externí odkaz:
https://doaj.org/article/cc0c4fa938da413a8c372f2464c9930f
Autor:
Amer M. Salman, Mohd Hafiz Mohd, Noor Atinah Ahmed, Kamarul Imaran Musa, Issam Ahmed, Zuhur Alqahtani
Publikováno v:
Malaysian Journal of Fundamental and Applied Sciences. 18:332-342
COVID-19 is a global public health problem that causes severe acute respiratory syndrome (SARS). It is also extremely contagious with rapidly increasing death rates. In this paper, we propose an optimal control model with SIRS (Susceptible–Infected