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431 articles for “S. Ahmad”
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Research ArticleOpen accessIn the author namesV-Band Fade Dynamics Characteristics Analysis in Tropical RegionKhairayu Badron, Ahmad Fadzil Ismail, Jafri Din, Ahmad Tharek Abdul RahmanProblem statement: Satellite operations at V-band in tropical and equatorial regions are constrained as a result of attenuation from rain. Approach: Statistics for 20 consecutive months of V-band terrestrial link signal attenuation measurements in Malaysia were presented in this analysis. Such information was considered very pertinent for Earth-space communication link design and can be used for initial groundwork plan for … …American Journal of Applied Sciences, Vol. 7, Issue 8 · 31 Aug 2010 · 7,808 accessesView PDFCite
Research ArticleOpen accessIn the author namesDevelopment of Empirical Prediction Formula for Penetration of Ogive Nose Hard Missile into Concrete TargetsAhmad Mujahid Ahmad Zaidi, Qadir Bux Alias Imran Latif, Ismail Abdul Rahman, Muhammad Yusof IsmailProblem statement: Concrete is basic construction material used for most of structures. However, the typical vital structures have to be designed as self-protective such as nuclear plants, power plants, weapon industries, weapons storage places and water retaining structures, against any threats like natural disaster tragedy incident or intentionally produced by horrible incidents such as dynamic loading, incident occurs in nuclear … …American Journal of Applied Sciences, Vol. 7, Issue 5 · 31 May 2010 · 8,451 accessesView PDFCite
Research ArticleOpen accessIn the author namesWork Posture and Back Pain Evaluation in a Malaysian Food Manufacturing CompanyBaba Md. Deros, Dian Darina Indah Daruis, Ahmad Rasdan Ismail, Ahmad Rifqi Abdul RahimProblem statement: A cross-sectional study was conducted among workers at a processed food manufacturer in Malaysia. The main objective of the study was to determine the prevalence of back pain among workers who perform manual material handling. In addition, the study also investigated the effectiveness of the interventions provided by the employer to reduce the risk of back pain. Approach: … …American Journal of Applied Sciences, Vol. 7, Issue 4 · 30 Apr 2010 · 7,561 accessesView PDFCite
Research ArticleOpen accessIn the author namesAnalysis of Comparison between Unconfined and Confined Condition of Foamed Concrete Under Uni-Axial Compressive LoadMohd Zairul Affindy Abdul Rahman, Ahmad Mujahid Ahmad Zaidi, Ismail Abdul RahmanProblem statement: Foamed concrete has become most commercial material in construction industry. People in industries were come out with the new mix design of foamed concrete to meet the specification and the requirements needed. Approach: This is because foamed concrete has the possibility as alternative of lightweight concrete for producing intermediate strength capabilities with excellent thermal insulation, freeze-thaw resistance, high-impact … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 1 · 31 Mar 2010 · 8,640 accessesView PDFCite
Research ArticleOpen accessIn the author namesCharacterization and Geotechnical Properties of Penang Residual Soils with Emphasis on LandslidesFauziah Ahmad, Ahmad Shukri Yahaya, Mohd Ahmadullah FarooqiThe predominantly hilly terrain of Penang Island combined with average maximum daily temperatures ranging between 27-35°C and peak rainfall as high as 647 cm makes the overall area potentially susceptible to landslips. Over the recent past construction industry has shown a rapid growth mainly due to increase in the inflow of international tourists and other economic reasons. Eventually, the magnitude … …American Journal of Environmental Sciences, Vol. 2, Issue 4 · 31 Dec 2006 · 8,236 accessesView PDFCite
Research ArticleOpen accessIn the author namesHeparin-PF4 Antibodies in Heparin Induced Thrombocytopenia: Its Relationship with FcgRIIa PolymorphismMeganathan Kannan, Firdos Ahmad, Sarfraz Ahmad et al.We did the pilot study, in an attempt to determine the prevalence of HIT in Indians and determine its relationship, if any, to FcγRIIa polymorphism, the occurrence of heparin-induced thrombocytopenia (HIT) was investigated in 33 Indian patients undergoing cardiovascular surgery (CVS) who received unfractionated heparin (UFH). Platelet counts were performed prior to the initiation of UFH therapy and 5-16 days, … …American Journal of Immunology, Vol. 1, Issue 1 · 31 Mar 2005 · 7,434 accessesView PDFCite
Research ArticleOpen accessIn the author namesCharacterizing Soil Penetration Resistance of Planted Sago Palm (Metroxylon spp.) Under Mineral Soils EcosystemMohd Effendi Wasli, Nurul Hidayah Che Ali, Roland Yong et al.In-situ soil assessment such as field soil compaction can often be a helpful approach in help determining soil suitability for certain crops. In this study, an assessment was conducted to characterize the Soil Penetration Resistance (SPR) in planted sago palm (Metroxylon spp.) plantation at different growth of rosette and trunking stages under mineral soils ecosystem. SPR in-situ assessment would provide … …OnLine Journal of Biological Sciences, Vol. 21, Issue 4 · 20 Dec 2021 · 6,735 accessesView PDFCite
Research ArticleOpen accessIn the author namesSocio-Economic Community and Marine Resources Status in Supporting Tourist Destination of Small Island in IndonesiaMa’ruf Kasim, Dedy Oetama, Ahmad Bahar et al.Indonesia is one of the countries in the world that has many large islands and thousands of small islands. The small island is a unique environment with a distinctive community life. The main occupations of the people on small islands are generally fishermen and boat owners. This study aims to determine the socio-economic conditions of small islands, especially the livelihoods … …Journal of Social Sciences, Vol. 17, Issue 1 · 25 Sep 2021 · 7,434 accessesView PDFCite
Research ArticleOpen accessIn the author namesA New Spectral Conjugate Gradient Method for Nonlinear Unconstrained OptimizationIbtisam A. Masmali, Zabidin Salleh, Ahmad AlhawaratTheconjugate gradient method is widely used to solve large scale unconstrainedoptimization problems. However, the rate of convergence conjugate gradient method is linearunless it restarted. In this study, we present a new spectral conjugategradient modification formula with restart property obtains the globalconvergence and descent properties.In addition, we proposed a new restart condition for Fletcher-Reeves conjugate gradient formula. The numerical resultsdemonstrated that … …Journal of Computer Science, Vol. 17, Issue 6 · 5 Jul 2021 · 6,658 accessesView PDFCite
Research ArticleOpen accessIn the author namesImproving the Traffic Flow in Hot Arid Climate Areas by Implementing a Monorail Light Rail Transit System: Case of KuwaitTaha Ahmed, Mohamed Salem, Ahmad Saad, Abdel Rahman AlaqqadThis study investigated the viability of establishing a monorail network system in Kuwait as an additional means of transportation to the current transportation systems. Two critical areas with high traffic demands were identified through the collected traffic data at the major intersections in these areas., These areas were Kuwait City (near the ministries area) and Al-Blajat street (known as the … …American Journal of Engineering and Applied Sciences, Vol. 14, Issue 1 · 24 Jan 2021 · 7,064 accessesView PDFCite