Author
Muhd Khudri Johari
Bio: Muhd Khudri Johari is an academic researcher from University of Kuala Lumpur. The author has contributed to research in topics: Aircraft maintenance & Workload. The author has an hindex of 4, co-authored 13 publications receiving 61 citations.
Papers
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01 Apr 2019
4 citations
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TL;DR: This study analyzes the survey conducted with 66 aviation industry personnel from 11 local aviation companies and shows that most of them agreed on the need to establish an LRU Center in a local approved training organization such as Universiti Kuala Lumpur – Malaysian Institute of Aviation Technology (UniKL MIAT) because of several justifiable reasons.
Abstract: For the local aircraft maintenance industry, radio line replaceable unit (LRU) has been essential in aircraft’s airworthiness but at the same time, costly for many Malaysian aviation companies. This study analyzes the survey conducted with 66 aviation industry personnel from 11 local aviation companies, which have had to spend a considerable amount of financial budget on their LRU maintenance every year. The conclusion from the survey data shows that most of them agreed on the need to establish an LRU Center in a local approved training organization such as Universiti Kuala Lumpur – Malaysian Institute of Aviation Technology (UniKL MIAT) because of several justifiable reasons such as significantly cheaper costs, more hands-on training and job opportunities, shorter delivery time, and possible research and development benefits.
4 citations
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TL;DR: In this article, the relationship between personal problems and teaching reflection practice is researched quantitatively as there is a significant concern in the current education system that English language teachers are not doing well in educating the current generation, hence the professional developments needed to be carried out.
Abstract: Personal problems involve things that are difficult to deal with, felt or experienced by certain people; in this particular study, Malaysian English language teachers. The relationship between personal problems and teaching reflection practice is researched quantitatively as there is a significant concern in the current education system that English language teachers are not doing well in educating the current generation, hence the professional developments needed to be carried out (Masilamani, et al., 2011; Schleicher, 2011; Schleicher, 2011). Based on the authors’ readings, there has yet been any research regarding this matter done in the Malaysian context. Hence, different types of personal problems have been identified via a validated questionnaire specifically made for this purpose. 45 English language teachers participated in this action research; all of whom are currently teaching in the same district in southern Negeri Sembilan, Malaysia. Although the results showed that personal problems affected teaching reflection practice negatively, it is hoped that future research will look into how teachers can utilize their problems as personal intrinsic motivators to obtain positive reinforcements and achieve success in their careers.
4 citations
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01 Dec 2017TL;DR: In this paper, a study is conducted to establish the needs for a PEOC in Malaysia, which will cater almost all small local aircraft companies such as transport and flying school companies.
Abstract: Piston engine overhaul centre (PEOC) is the branch of aviation Maintenance, Repair and Overhaul (MRO) providers, which plays a pivotal role in maintaining the fleet of business and commercial aircraft in the world. The centre typically offers three main MRO capabilities: airframe, engine and component services. Companies holding a PEOC(s) are all subjected to stringent procedures and conditions regulated and audited by the International Civil Aviation Organization. Currently, piston engine maintenance and repair for Asian countries is conducted only in Singapore. The focus of this study is to establish the needs for a PEOC in Malaysia, which will cater almost all small local aircraft companies such as transport and flying school companies.
4 citations
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01 Jan 2022
3 citations
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TL;DR: In this article, a three-blade horizontal axis wind turbine (HAWT) and a Darrieus-type vertical axis wind turbines (VAWT) have been designed with CATIA software and constructed using a 3D-printing method.
Abstract: As the demand for green technology is rising rapidly worldwide, it is important that Malaysian researchers take advantage of Malaysia’s windy climates and areas to initiate more power generation projects using wind. The main objectives of this study are to build a functional wind turbine and to compare the performance of two types of design for wind turbine under different speeds and behaviours of the wind. A three-blade horizontal axis wind turbine (HAWT) and a Darrieus-type vertical axis wind turbine (VAWT) have been designed with CATIA software and constructed using a 3D-printing method. Both wind turbines have undergone series of tests before the voltage and current output from the wind turbines are collected. The result of the test is used to compare the performance of both wind turbines that will imply which design has the best efficiency and performance for Malaysia’s tropical climate. While HAWT can generate higher voltage (up to 8.99 V at one point), it decreases back to 0 V when the wind angle changes. VAWT, however, can generate lower voltage (1.4 V) but changes in the wind angle does not affect its voltage output at all. The analysis has proven that VAWT is significantly more efficient to be built and utilized for Malaysia’s tropical and windy climates. This is also an initiative project to gauge the possibility of building wind turbines, which could be built on the extensive and windy areas surrounding Malaysian airports.
74 citations
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01 Nov 2020TL;DR: In this article, the authors highlight the present status of urban wind farm technology and its commercial and environmental aspects and conclude that further investigation of wind mapping and the suitable design of turbines is essential to make the urban wind farms a reliable and feasible option for decentralized power generation.
Abstract: Wind energy is a promising scheme in the power generation sector due to pollution-free power production and wind resources’ sufficiency worldwide. Installing wind turbines in all the possible extents can mitigate the rising energy demand. Built-up areas possess high potential for wind energy, including the rooftop of high-rise buildings, railway track, the region between or around multistoried buildings, and city roads. Harnessing wind energy from these areas is quite challenging since it has dramatic nature and turbulence for higher roughness on urban surfaces. This review paper endeavors to highlight the present status of urban wind farm technology and its commercial and environmental aspects. Observations and upcoming research trends have been presented based on up-to-the-minute information. It is concluded that further investigation of wind mapping and the suitable design of turbines is essential to make the urban wind farm a reliable and feasible option for decentralized power generation.
58 citations
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TL;DR: A review of using hybrid of solar tracker and vertical wind mill is proposed and it is proposed that these resources should be used in efficient and smart manner.
Abstract: The requirement of electrical energy is increasing in domestic as well as industrial applications. To meet the necessity of energy more resources are needed and furthermore environmental health should be taken care of. Due to use of conventional sources such as petroleum and coal, environment is debasing. As electric energy is the most reliable source of energy, generation of electric energy by using natural or non-conventional resources such as wind and solar energy is necessary. For generating more and more energy these resources should be used in efficient and smart manner. For that purpose this paper proposes a review of using hybrid of solar tracker and vertical wind mill.
19 citations
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TL;DR: The current status of wind energy research in Malaysia is reviewed and different contributing factors such as potentiality and assessments, wind speed and direction modeling, wind prediction and spatial mapping, and optimal sizing of wind farms are extensively discussed.
Abstract: In recent years, wind energy has gained extensive attention in the recent years in various countries due to the high energy demand of energy and shortage of traditional electric energy sources. Because wind energy constitutes a cost effective and environmentally friendly source, it can significantly contribute toward the reduction of the ever-increasing carbon emissions. It is one of the fastest growing green technologies worldwide, with a total generation share of 564 GW as of the end of 2018. In Malaysia, wind energy has been a hot topic in both academia and green energy industry. In this paper, the current status of wind energy research in Malaysia is reviewed. Different contributing factors such as potentiality and assessments, wind speed and direction modeling, wind prediction and spatial mapping, and optimal sizing of wind farms are extensively discussed. This paper discusses the progress of all studies related to wind energy and presents conclusions and recommendations for improving wind energy research in Malaysia.
19 citations
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TL;DR: In this paper , the performance of the Savonius turbine, fitted with auxiliary blades, is compared with a newly developed turbine where the gap ratio is studied, and the numerical simulation is carried out by solving unsteady Reynolds Averaged Navier-Stokes equations (URANS) using ANSYS fluent package.
15 citations