1,720,992 research outputs found
Design of DC-DC converter kit for undergraduate laboratory experiment: article / Mohd Ramzi Mat Hasan
No full textThis project deals with the implementation of DC chopper trainer kit. A careful and detail design procedure of the chopper will be documented. Computer simulation will be used extensively to ascertain the workability of the design circuit. Finally, the trainer will be constructed and tested. The trainer can be used for undergraduate laboratory experiment purposes to help student get to know more about chopper by providing a selectable component layout for several of inductor, capacitor and resistor values. Eventually, student will be able to feel and see the concept of chopper. The duty ratio and frequency can be adjusted and rearranged. The value of active components can be compared to the result between the calculation and the simulation
Design of DC-DC converter kit for undergraduate laboratory experiment / Mohd Ramzi Mat Hasan
No full textThis project deals with the implementation of DC chopper trainer kit. A careful and detail design procedure of the chopper will be documented. Computer simulation will be used extensively to ascertain the workability of the design circuit. Finally, the trainer will be constructed and tested. The trainer can be used for undergraduate laboratory experiment purposes to help student get to know more about chopper by providing a selectable component layout for several of inductor, capacitor and resistor values. Eventually, student will be able to feel and see the concept of chopper. The duty ratio and frequency can be adjusted and rearranged. The value of active components can be compared to the result between the calculation and the simulation
Developing assessment rating tool on authenticity in adaptive reuse of heritage building in Malaysia / Hasni Suryani Mat Hasan
No full textHeritage building consists of past generation history, memory, and culture. In order to protect heritage building, it is necessary to adapt it to new functions by modifying the functionality of heritage building to support the next generation's need while at the same time retaining its authenticity. However, the stakeholders' eagerness with respect to this conservation method, has led to the loss of heritage building authenticity. From intensive reading, surprisingly, it is found that in local authority conservation guidelines are still lacking and there is no satisfactory method to control the authenticity in the adaptive reuse of heritage building. This is disturbing, although authenticity is a prime concern in conservation. Hence, the aim of the study is to develop assessment rating tool on authenticity in the adaptive reuse of heritage buildings in Malaysia based on authenticity in conservation. To achieve the research aim, three research objectives were established which includes to establish the main building elements listed for assessment of authenticity in the adaptive reuse of heritage building, to identify the key indicators of authenticity in adaptive reuse for the main building elements in a heritage building and to develop assessment rating tool on authenticity in adaptive reuse of heritage building in Malaysia based on the authenticity in conservation. To achieve the research objectives, multiple sources of data were applied in a case study that consisted of semi structured interview with experts, observation in adaptive reuse of heritage building and document analysis on four guidelines. The findings from this study shows that the study has generated 20 main building elements listed for assessment of authenticity in adaptive reuse of heritage building and established the 15 key indicators of authenticity in adaptive reuse for the main building elements in heritage building. This was later integrated in the development of assessment rating tool. The assessment rating tool developed provides the guidance needed to rate the value of authenticity retained before, during and after adaptive reuse work. The output will give insight into the level of successful authenticity controlled in adaptive reuse of heritage building, and can be used to support current conservation guidelines, and fill the loophole in current practice assessment in adaptive reuse of heritage building work. Therefore, the authenticity of heritage building in adaptive reuse work can be controlled, the intervention can be minimized and the authenticity issue in adaptive reuse can be solved
Smart waste sorter chute / Nur Syifaa Hashim and Hasni Suryani Mat Hasan
No full textHigh-rise buildings nowadays are a symbol of a country's rapid growth. The rapidly growing construction sector in Malaysia has produced numerous types of waste products that caused a negative impact on the environment and increased the amount of waste in landfills. The considerable volume of garbage produced during the construction of high-rise buildings makes waste management a crucial component of the project. Due to the lack of a systematic approach to managing construction waste, reducing waste as the building construction industry grew into what it is now became a significant environmental issue. The objectives of this innovation project are to identify the suitable method of waste management for high-rise building construction, propose sustainable element of waste chute in high-rise building construction, and determine the marketability of proposing sustainable waste chute in high- rise building construction in order to achieve the aim of this study which is, to develop an innovative product to manage waste in construction industry as sustainable waste management. The technology requires an expertise in order to provide the high-quality performance. Sustainable future may be brought by technological advancements, which help to protect the environment and conserve resources by reducing waste generation and improving resource efficiency
Smart waste sorter chute / Nur Syifaa Hashim and Hasni Suryani Mat Hasan
No full textHigh-rise buildings nowadays symbolise a country’s rapid growth. The construction of high-rise building dominates Malaysia’s economy, as it is one of the developing nations. The rapidly growing construction sector in Malaysia has produced numerous types of waste products, resulting in a negative impact on the environment and an increased amount of waste in landfills. The considerable volume of garbage produced during the construction of high-rise buildings makes waste management a crucial component in such projects. Due to the absence of a systematic approach to managing construction waste, the escalation of the building construction industry has led to a significant environmental issue concerning waste reduction. The objectives of this innovation project are to identify the suitable method for waste chutes in high-rise building construction, propose sustainable elements for waste chutes in high-rise building construction, and determine the marketability of such sustainable waste chutes in high-rise building construction
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Flash flood counter: smart eco drain cover / Muhammad Amirul Faiz Nordin and Hasni Suryani Mat Hasan
No full textIn Malaysia, flash floods are familiar issue and always occur especially in residential areas, this can be related to the drain cover system that contributes to the occurrence of flash floods because most drains are blocked and filled with garbage and effect the drainage system become improper. The flood that hit this nation in the late 2021 and early 2022 had caused damage to living quarter, vehicles, business premises, manufacturing and agriculture sector as well as public assets and infrastructure. There are many flash floods incidents which happen due to the poor maintenance of the drainage system which is filled with garbage which obstructs the rainwater from flowing away quickly and easily. Silt, garbage and other obstructions are reducing the carrying capacity of the drainage system by up to 50 percent and thus causing flash floods. Besides, theft of metal drain cover also contribute to the flash flood issue. This is related to irresponsible of people’s attitude, corresponding to the high price of iron. Drain covers made of iron are one of the things that are potential to be stolen, this caused drains that should be covered become open drain then it causes garbage to easily enter and fill the space in the drain and finally close the water channel resulting in clogged drains and causing the occurrence of flood. Thus, the aim of this study is to develop smart eco drain cover, to assemble their prototype, to demonstrates the performance and also to market the product using. This research are using innovation framework as a methodology of the research
Smart eco drain cover / Muhammad Amirul Faiz Nordin and Hasni Suryani Mat Hasan
No full textUrban areas are particularly vulnerable to flash floods, and traditional metal drain covers play a crucial role in controlling stormwater runoff. Unfortunately, the rising incidents of drain cover thefts, driven by the desire to obtain their precious metal content, have caused grave worries. This not only results in financial losses for towns but also poses significant dangers to pedestrians and drivers. As such, this study suggests a novel approach to address this problem: replacing metal drain covers with ones made from concrete and coconut husk. This initiative aims to prevent theft and lessen accidents in the event of flash floods. The study looks on the viability and efficiency of using coconut husk as a more environmentally friendly alternative material for drain covers. Coconut husk fibre is an excellent choice for concrete mix reinforcement due to its high tensile strength and endurance. The goal of the study is to produce a sturdy and resilient drain cover that can endure high traffic volumes and adverse weather conditions by optimising the mix ratio. Laboratory tests were conducted to evaluate the mechanical characteristics and structural soundness of the concrete-coconut husk drain covers
Recycled concrete waste as aggregate for concrete / Wan Ahmad Izzat Wan Abdullah, Hasni Suryani Mat Hasan
No full textIn Malaysia, the awareness of product recycling, especially in the construction industry, is still low among people. The wastage of demolition processes is usually dumped into landfills when the demolition materials do not hold much value to be reused. This continuous effect will eventually fill the landfills with demolition wastes, particularly concrete materials. This phenomenon leads to several problems such as pest infestation, environmental damage, unpleasant sight, and health issue to the residents who live nearby the landfills. This study aims to develop an innovation to reuse demolition wastes into building materials. The research objectives are to identify the current issues relating to demolition waste materials, propose an innovation idea of recycling concrete waste from demolitions into new building materials, and explore the marketability potential of this demolition concrete waste
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