Palestine: Arab activities. Account of conversation with Omar Dejani, personal envoy of King Abdullah. December 1947 - January 1948. FO 371/68364-0010. English. FO 371/68364. Book.
1947 - Gale Group | ArchivesUnbound Arabi Israeli
Ray Vern Quah, Yie Hua Tan, Nabisab Mujawar Mubarak, Jibrail Kansedo, Mohammad Khalid, E.C. Abdullah, Mohammad Omar Abdullah,
Due to its environment-friendly and replenishable characteristics, biodiesel has the potential to substitute fossil fuels as an alternative source of energy. Although biodiesel has many benefits to offer, manufacturing biodiesel on an industrial scale is uneconomical as a high cost of feedstock is required. A novel sulfonated and magnetic catalyst synthesised from a palm kernel shell (PMB-SO3H) was first introduced in this study for methyl ester or biodiesel production to reduce capital costs. The ...
Tópico(s): Thermochemical Biomass Conversion Processes
2020 - Elsevier BV | Waste Management
Fahad Saleh Al Sweleh, Abdullah Mohammed Al Saedan, Omar Abdullah Al Dayel,
A positive safety culture is essential to patient safety because it improves quality of care. The aim of this study was to assess staff and student perceptions of the patient safety culture in the clinics of the College of Dentistry at King Saud University in Saudi Arabia. A cross-sectional study was conducted in the College of Dentistry at King Saud University in Saudi Arabia. It included 4th and 5th year students, interns, general practitioners, and dental assistants. The data were collected by ...
Tópico(s): Healthcare Quality and Management
2018 - Wolters Kluwer | Medicine
Noradilah Samseh Abdullah, Ii Li Lee, Tengku Shahrul Anuar, Fatmah Md Salleh, Siti Nor Azreen Abdul Manap, Noor Shazleen Husnie Mohd Mohtar, Syed Muhamad Azrul, Wan Omar Abdullah, Norhayati Moktar,
In the tropics, there are too few studies on isolation of Blastocystis sp. subtypes from water sources; in addition, there is also an absence of reported studies on the occurrence of Blastocystis sp. subtypes in water during different seasons. Therefore, this study was aimed to determine the occurrence of Blastocystis sp. subtypes in river water and other water sources that drained aboriginal vicinity of highly endemic intestinal parasitic infections during wet and dry seasons. Water samples were ...
Tópico(s): Parasitic infections in humans and animals
2016 - PeerJ, Inc. | PeerJ
Noradilah Samseh Abdullah, Norhayati Moktar, Tengku Shahrul Anuar, Ii Li Lee, Fatmah Md Salleh, Siti Nor Azreen Abdul Manap, Noor Shazleen Husnie Mohd Mohtar, Syed Muhamad Azrul, Wan Omar Abdullah, Anisah Nordin, Syamsa Rizal Abdullah,
Alternating wet and dry seasons may play an important role in the acquisition and distribution of Blastocystis subtype infection in the tropics. This cross-sectional study was therefore conducted to provide the prevalence of Blastocystis and to determine the potential risk factors associated with each subtype during the wet and dry seasons in the Aboriginal community, Pahang, Malaysia.A total of 473 faecal samples were collected: 256 (54.1%) and 217 (45.9%) samples were obtained during the wet (October- ...
Tópico(s): Toxoplasma gondii Research Studies
2017 - BioMed Central | Parasites & Vectors
Mohammad Omar Abdullah, Tang Chung Hieng,
The objectives of the present work are of two-folds. First, it evaluates the transient temperature performance of the H2O–NH3–H2 absorption cooling machine system's components under two types of energy sources, i.e. the conventional electric energy from grid (electric) and fuel energy from liquid petroleum gas (LPG). Results obtained have shown that performance of various components under different type of energy sources is almost coherent. For the evaporator, the system with electric supply has shorter ...
Tópico(s): Integrated Energy Systems Optimization
2009 - Elsevier BV | Applied Energy
Mohammad Omar Abdullah, Voon Chun Yung, Martin Anyi, Al-Khalid Othman, Khairuddin B. Ab. Hamid, James Tarawe,
In this paper, the rural electrification study of an ICT Telecenter in particular reference to the Kelabit Highland of Sarawak is presented. The use of diesel generator and its associated environmental implications is first discussed. The cost-effectiveness of the present solar PV system and the solar/hydro schemes for rural electrification of the rural ICT are evaluated employing the HOMER simulation software, considering sustainability factors such as system efficiency, weather, fuel costs, operating ...
Tópico(s): Microgrid Control and Optimization
2009 - Elsevier BV | Energy
John K. Courtis, Omar Abdullah Zaid,
The mail questionnaire methodology was used to gather perception–based data about problems experienced by Australian graduate accountants in their early employment. Large samples of graduate accountants, their employers and academic accountants supplied the data upon which the analysis and discussion are based. Six major problem areas were identified with surprising general agreement between the respondent groups with regard to the basis of these problems and recommended solutions. Problems arise ...
Tópico(s): Higher Education and Employability
2002 - Taylor & Francis | Accounting Forum
Omar Abdullah Zaid, Anne Abraham, Anne Abraham,
Communication skills are central to intellectual interaction between the providers and the recipients of information. The importance of accounting starts with the gathering and processing of information and ends with the communication of processed information. This paper examines the communication skills which employers, academics and graduate accountants consider necessary to the newly graduated accountant. It also identifies and considers the differences in perception which occur between these ...
Tópico(s): Management and Marketing Education
1994 - Taylor & Francis | Accounting Education
Leo Sing Lim, Mohammad Omar Abdullah,
Abstract Adsorption air-cooling systems powered by waste heat or solar heat can help to reduce the use of ozone-depleting substances, such as chlorofluorocarbons (CFCs) and hydro-chlorofluorocarbons (HCFCs). In recent years, these systems have faced increasing interest in many fields because they are quiet, long lasting, inexpensive to maintain, and environmentally friendly. This paper presents a laboratory prototype of an automobile adsorption air-conditioning system powered by exhaust heat, which ...
Tópico(s): Heat Transfer and Optimization
2010 - Taylor & Francis | HVAC&R Research
Mohammad Omar Abdullah, I.A.W. Tan, Leo Sing Lim,
Refrigeration and air-conditioning technology are required to evolve in accordance to Montreal Protocol adopted in 1987 and Kyoto Protocol in 1997. This regulation concerns about the climate change in an attempt to phase-out chlorofluorocarbons (CFCs), followed by hydro-chlorofluorocarbons (HCFCs) and then moving to 1,1,1,2-tetrafluoroethane (HFC-134a) starting 2011. This trend leads to a strong demand of new systems for air-conditioning, especially in automobile. Adsorption cooling system, among other ...
Tópico(s): Carbon Dioxide Capture Technologies
2011 - Elsevier BV | Renewable and Sustainable Energy Reviews
Tae-Hwan Yeo, I.A.W. Tan, Mohammad Omar Abdullah,
Adsorption air-conditioning technology has attracted much attention recently due to its environmental friendly property. Some successes have been reported in the literature on the adsorption technology for air-conditioning applications. This paper presents an overview of the researches which had been carried out on adsorption refrigeration system with the commonly used adsorbent and adsorbate working pairs, solar adsorption refrigeration and adsorption technologies in automobile. Activated carbon ...
Tópico(s): Heat Transfer and Optimization
2012 - Elsevier BV | Renewable and Sustainable Energy Reviews
Despite advances in historical knowledge the precise origins of accounting systems and recording procedures remain uncertain. Recently discovered writings suggest that accounting has played a very important role in various sections of Muslim society since 624 A.D. This paper argues that the accounting systems and recording procedures practiced in Muslim society commenced before the invention of the Arabic numerals in response to religious requirements, especially zakat, a mandatory religious levy ...
Tópico(s): Families in Therapy and Culture
2004 - Academy of Accounting Historians | Accounting Historians Journal
Historically, accountants and accounting have played a very important role in Muslim societies. Accountants, who were known as Al-Kateb (accountants/bookkeepers/accounts clerks), held very prestigious positions in government, business and society. They were the advisors and decision-makers for the rulers, business peoples and society at large. The primary objective of accounting was the ascertainment of the adequacy of the transactions from the religious view point and the appropriate calculation ...
Tópico(s): Islamic Finance and Banking Studies
2000 - Taylor & Francis | Accounting Education
The precise origin of the accounting records and reports outlined by Pacioli in 1494 and used in the Italian Republics is presently unknown. Historical evidence preserved in Turkey and Egypt indicates that accounting records and reports developed in the early Islamic State were similar to those used in the Italian Republics as outlined by Pacioli in 1494. Furthermore, some of the records and reports used in different parts of the Islamic State are comparable to modern-day books and reports. The ...
Tópico(s): Islamic Finance and Banking Studies
2000 - Academy of Accounting Historians | Accounting Historians Journal
Harunal Rejan Ramji, S. L. Leo, Mohammad Omar Abdullah,
This paper aims to present a parametric study to compare with the experimental results obtained previously for a typical activated carbon–methanol, adsorption air-conditioning system powered by exhaust heat. The main objective is to study the effect of wall thickness on the desorption temperature and the cooling performance. The current study is a simulation/parametric investigation employing computational fluid dynamics (CFD) simulation technique. It is found that the CFD result is close to the ...
Tópico(s): Heat Transfer and Optimization
2013 - Elsevier BV | Applied Energy
Mohammad Omar Abdullah, Lim Pai Yii, Ervina Junaidi, Ghazali Tambi, M. Mustapha,
In this paper, the case study of a district cooling system of a university located in a South East Asia region (lat: 01°29′; long: 110°20′E) is presented. In general, the university has high peak ambient temperature of around 32–35 °C coupled with high humidity of about 85% during afternoon period. The total electricity charge for the Universiti Malaysia Sarawak Campus is very high amounting to more than $314,911 per month. In this paper, a few district cooling schemes are investigated to provide “what- ...
Tópico(s): Building Energy and Comfort Optimization
2013 - Elsevier BV | Energy and Buildings
Yie Hua Tan, Mohammad Omar Abdullah, Cirilo Nolasco‐Hipolito,
Nowadays, biodiesel is an alternative fuel to replace the existing petroleum-based diesel. The advantages of biodiesel are good combustion efficiency, high-lubricity, biodegradability and low toxicity. Biodiesel can be an alternate fuel to be used for running diesel engines. This paper is to present a comprehensive review on the past efforts to enhance and commercially improve the transesterification by using homogeneous base catalyst, e.g. sodium hydroxide or potassium hydroxide. By introducing ...
Tópico(s): Lubricants and Their Additives
2015 - Elsevier BV | Renewable and Sustainable Energy Reviews
Yie Hua Tan, Mohammad Omar Abdullah, Cirilo Nolasco‐Hipolito, Yun Hin Taufiq‐Yap,
The primary goal of this paper is to investigate the catalyst characterization and biodiesel yield of a biodiesel converted from a used cooking oil source via heterogeneous catalysts derived from very rare type of eggshell: ostrich-eggshell (ostrich-eggshell derived CaO). It also aims to compare the performance of CaO catalyst derived from both waste ostrich-eggshell and the conventional chicken-eggshell, and to find the optimum conditions for biodiesel production. The prepared catalysts were then ...
Tópico(s): Lubricants and Their Additives
2015 - Elsevier BV | Applied Energy
Pei Fang Tee, Mohammad Omar Abdullah, I.A.W. Tan, Nur Khairunnisa Abdul Rashid, Mohamed Afizal Mohamed Amin, Cirilo Nolasco‐Hipolito, Kopli Bujang,
Access to clean water has been a great challenge around the globe due to the high pollutant contents in the water. Therefore, there is a high demand of freshwater resources or a dire need of clean recycle wastewater as a new source of water supply. In order to accomplish this, new concept or engineering systems need to be developed where hybrid wastewater treatment system can be an effective pollutants removal. Wastewater contains energy in the form of biodegradable organic matter. The concept of ...
Tópico(s): Membrane-based Ion Separation Techniques
2015 - Elsevier BV | Renewable and Sustainable Energy Reviews
Ephrem Ryan Alphonsus, Mohammad Omar Abdullah,
As the need of automation increases significantly, a control system needs to be easily programmable, flexible, reliable, robust and cost effective. In this paper a review on the application of programmable logic controller (PLC) in our current market is discussed. Investigations on the applications of PLCs in energy research, engineering studies, industrial control applications and monitoring of plants are reviewed in this paper. PLCs do have its own limitations, but findings indicate that PLCs have ...
Tópico(s): Engineering and Technology Innovations
2016 - Elsevier BV | Renewable and Sustainable Energy Reviews
Pei-Fang Tee, Mohammad Omar Abdullah, I.A.W. Tan, Mohamed Afizal Mohamed Amin, Cirilo Nolasco‐Hipolito, Kopli Bujang,
An air-cathode MFC-adsorption hybrid system, made from earthen pot was designed and tested for simultaneous wastewater treatment and energy recovery. Such design had demonstrated superior characteristics of low internal resistance (29.3Ω) and favor to low-cost, efficient wastewater treatment and power generation (55mW/m(3)) with average current of 2.13±0.4mA. The performance between MFC-adsorption hybrid system was compared to the standalone adsorption system and results had demonstrated great pollutants ...
Tópico(s): Supercapacitor Materials and Fabrication
2016 - Elsevier BV | Bioresource Technology
Yie Hua Tan, Mohammad Omar Abdullah, Cirilo Nolasco Hipólito,
Homogeneous base catalyst has wide acceptability in biodiesel production because of their fast reaction rates. However, postproduction costs incurred from aqueous quenching, wastewater and loss of catalysts led to the search for alternatives. Heterogeneous base catalyst is developed to cater these problems. The advantages of heterogeneous catalyst are their high basicity and non-toxicity. This work compared the production of biodiesel using two different kind of catalysts that is homogeneous catalyst ( ...
Tópico(s): Fuel Cells and Related Materials
2016 - Trans Tech Publications | Applied Mechanics and Materials
Pei-Fang Tee, Mohammad Omar Abdullah, I.A.W. Tan, Mohamed A. Amin, Cirilo Nolasco‐Hipolito, Kopli Bujang,
A cost effective single-chamber microbial fuel cell (MFC) integrated with adsorption system was tested under different operating temperatures to observe pH profiles, organics, solids, nutrients, color and turbidity removal and power density generation. The optimum operating temperature range was found to be ∼25–35 °C with majority of the removals achieved at ∼35 °C. Maximum power density recorded was 74 ± 6 mW/m3 with coulombic efficiency (CE) of 10.65 ± 0.5% when operated at 35 °C. Present studies had successfully ...
Tópico(s): Supercapacitor Materials and Fabrication
2016 - Elsevier BV | Journal of environmental chemical engineering
Mohammed Haji Alhaji, Khairuddin Sanaullah, Soh Fong Lim, Afrasyab Khan, Cirilo Nolasco Hipólito, Mohammad Omar Abdullah, Showkat Ahmad Bhawani, Tahir Jamil,
This review provides insight into various techniques utilized for the treatments of palm oil mill effluents (POME). Generally, POME treatment is achieved in two ways, these are (1) pre-treatment stages, involving majorly the reduction of oil and grease and suspended matter and (2) an advanced treatment stage, in which wastewater contaminants (e.g. BOD5, COD) are reduced to standard discharge limits. Different methods utilized in the treatment of POME such as coagulation-flocculation, anaerobic, aerobic ...
Tópico(s): Electrochemical sensors and biosensors
2016 - Elsevier BV | Process Safety and Environmental Protection
Marwan Mustafa Badawi, Afra AbdElhamid Fadl Alla, Salma Sleak Alam, Wafa Aljack Mohamed, Duaa Adil Nasr-Eldin Osman, Samar Ali Abd Alrazig Ali, Entissar Mohamed Elhassan Ahmed, Abdah AbdElmonim Adam, Ranya Omar Abdullah, Mohamed Ahmed Salih,
Newcastle disease virus (NDV) is negative sense single stranded RNA belongs to the Avulavirus genus of the Paramyxoviridae family which can be transmitted by inhalation or ingestion. Birds infected shed these viruses in feces as well as respiratory secretions. The aim of this study is to analyze fusion (F) protein of all virulent Newcastle strains reported in NCBI database using in silico approaches to select all possible epitopes that can be used as a therapeutic peptide vaccine. A total of 56 virulent ...
Tópico(s): Influenza Virus Research Studies
2016 - | American journal of infectious diseases and microbiology
Yie Hua Tan, Mohammad Omar Abdullah, Cirilo Nolasco‐Hipolito, Nur Syuhada Ahmad Zauzi, Georgie Wong Abdullah,
In this research work, the experimental investigation of the effect of diesel-biodiesel-bioethanol emulsion fuels on combustion, performance and emission of a direct injection (DI) diesel engine are reported. Four kind of emulsion fuels were employed: B (diesel-80%, biodiesel-20% by volume), C (diesel-80%, biodiesel-15%, bioethanol-5%), D (diesel-80%, biodiesel-10%, bioethanol-10%) and E (diesel-80%, biodiesel-5%, bioethanol-15%) to compare its’ performance with the conventional diesel, A. These emulsion ...
Tópico(s): Catalysis and Hydrodesulfurization Studies
2016 - Elsevier BV | Energy Conversion and Management
Yong Yin Sia, I.A.W. Tan, Mohammad Omar Abdullah,
The disposal of palm oil mill effluent (POME) without proper treatment before being discharged into natural water sources has become undesirable because of high concentration of suspended solid (SS), oil and grease (O&G), chemical oxygen demand (COD) and biological oxygen demand (BOD). This study investigated the feasibility of removing colour, total suspended solid (TSS) and COD using acid-washed coconut shell based activated carbon (CSAC) through the evaluation of the adsorption uptake as well as the ...
Tópico(s): Adsorption and biosorption for pollutant removal
2016 - EDP Sciences | MATEC Web of Conferences
Pei-Fang Tee, Mohammad Omar Abdullah, I.A.W. Tan, Mohamed A. Amin, Cirilo Nolasco‐Hipolito, Kopli Bujang,
A microbial fuel cell (MFC) integrated with adsorption system (MFC-AHS) is tested under various operating temperatures with palm oil mill effluent as the substrate. The optimum operating temperature for such system is found to be at ∼35°C with current, power density, internal resistance (Rin), Coulombic efficiency (CE) and maximum chemical oxygen demand (COD) removal of 2.51 ± 0.2 mA, 74 ± 6 mW m-3, 25.4 Ω, 10.65 ± 0.5% and 93.57 ± 1.2%, respectively. Maximum current density increases linearly with temperature ...
Tópico(s): Electrochemical sensors and biosensors
2017 - Taylor & Francis | Environmental Technology
I.A.W. Tan, N.M. Shafee, Mohammad Omar Abdullah, Leonard Lik Pueh Lim,
This study investigates the effects of microwave-induced torrefaction on the characteristics of lemongrass (Cymbopogon citrates) residue. The effects of microwave power level and reaction time on the proximate and elemental contents, surface morphology, surface chemistry, textural properties, thermal stability, higher heating value (HHV), hydrophobicity, and mass and energy yield of the torrefied lemongrass residue were determined. The development of tubular structure on the torrefied lemongrass residue ...
Tópico(s): Coal and Its By-products
2017 - Elsevier BV | Environmental Technology & Innovation