National University of Malaysia

About: National University of Malaysia is a education organization based out in Kuala Lumpur, Malaysia. It is known for research contribution in the topics: Population & Heat transfer. The organization has 26593 authors who have published 41270 publications receiving 552683 citations. The organization is also known as: NUM & Universiti Kebangsaan Malaysia.

Lean production supply chain management as driver towards enhancing product quality and business performance

Abstract: Purpose – The purpose of this paper is to obtain a better understanding of the extent to which lean production permeates manufacturing companies in Malaysia by drawing on supply chain management (SCM) managers' or production managers' perception of lean production practices and level of performances in the industryDesign/methodology/approach – The instrument used in this study is a structured survey questionnaire consisting of two major parts The first part comprises several variables measuring lean production practices, and the second part consists of several performance measurements Sample companies are chosen from Malaysian manufacturing companies listed in the Federation of Malaysian Manufacturers directory From the 300 companies sampled, 200 responses were completed, representing a 67 per cent response rateFindings – The results support the conceptual model, demonstrating strong association between lean production, product quality performance, and business performance The structural equation mo

Graphitic carbon nitride (g-C3N4) electrodes for energy conversion and storage: a review on photoelectrochemical water splitting, solar cells and supercapacitors

Abstract: Graphitic carbon nitride (g-C3N4) has emerged as one of the most promising photocatalysts due to its metal-free nature, abundance of raw material, and thermal physical–chemical stability. The breakthrough research studies in recent years have mostly been concentrated on the engineering of the intrinsic and morphological properties of g-C3N4-based photocatalysts in the framework of powder suspensions for artificial photosynthesis and environmental remediation. However, practical applications of g-C3N4-based electrodes and devices are still in the early stages of development due to challenging fabrication methods of g-C3N4 thin films. This review addresses the classification of diverse techniques to deposit g-C3N4-based thin films and explores a broad spectrum of applications pertinent to g-C3N4-based electrodes. Although this paper is principally focused on photoelectrochemical water splitting, other emerging applications of g-C3N4 in solar cells, electrocatalysts and supercapacitors are also reviewed. Lastly, further suggestions are posited for other potential applications, challenges and future orientations.

Biochar from oil palm biomass: A review of its potential and challenges

Abstract: Climate change, food crisis, energy generation and environmental pollution are among the greatest threats and challenges faced by mankind today. Biochar production from various biomass sources has gained a lot of interests since its addition to degraded agricultural soils not only improve soil fertility and biomass yield, but also mitigate climate change through soil carbon sequestration and reduction in greenhouse gas emissions. There are enormous amounts of oil palm biomass generated along with the main palm oil production streams. A lot of research has been carried out to convert oil palm biomass into value-added products, but none except biochar has come close to be labeled as carbon negative products. In this paper, a review about production and application potential of biochar from oil palm biomass in Malaysia is given. Besides, some of the challenges in promoting biochar production and application, such as nature of the feedstocks, economic and logistical factors and market acceptance are highlighted as well. Producing biochar from oil palm biomass can potentially lead to a healthier environmental, societal and economic growth for the oil palm industry specifically, and enhances sustainability in worldwide context.