242 research outputs found

    Evaluating the Cost of Quality in the Furniture Factory

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    The study was carried out in a furniture factory, which specialises in manufacturing of bedroom, and dining set furniture for export market. The purpose of this study was to identify the quality cost and to provide guidance to general management and quality program management to enable them to structure and manage programs to assist in the overall product cost reduction. The cost of quality was divided into four groups, which were prevention cost, appraisal cost, internal failure cost and external failure cost. The prevention cost was 30.2%, appraisal cost was 17.6%, internal failure cost was 43% and external failure cost was 9%. The major contributor internal failure cost was from down grading cost, valued at RM 30,000, The main contribution from prevention cost was quality planning around Rm 30,000. Receiving inspection gave a higher value in appraisal cost , which was RM 13,800 and the external cost just contributed only RM 10,000. Warranty claim was the most highest cost, it came from the department of Replacement Part or RP. From the result it showed that typical ratio for TOC as a percentage of sales was 15%, value added was 37% and direct labor cost was 2.7%. The value of direct labour cost was below 5% (international standard). This showed that this company has an efficient quality program and well trained staff to fulfill the quality requirements

    Conceptual Framework for Adoption of Islamic Banking in Nigeria: The Role of Customer Involvement

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    The purpose of this paper is to propose a conceptual design to study and investigate the factors influencing the adoption of Islamic banking products and services among customers in Nigeria. The research employs the innovation diffusion theory developed by Rogers (2003) to investigate the influence of the perceived attributes of innovation (relative advantage, compatibility, complexity and perceived risk) on customers’ usage of Islamic banking products and services in Nigeria. The study also intends to integrate customer involvement in the Rogers Model and investigate its influence on the usage of Islamic banking products and service. Besides that, the study also examines the moderating effect of customer involvement on the relationship between the perceived attributes - relative advantage, compatibility, complexity and perceived risk and the adoption of Islamic banking products and services. This is due to the fact that literatures on the Islamic banking usage have investigated the influence of the customer involvement. Islamic banking advocates profit and loss sharing in contrast to interest dealing practiced by conventional banking system which formed the major separation between the two banking systems. Another important demarcation between the Islamic and conventional system of banking has been the way and manner they relate with their customers. Whereas creditor-debtor relation is prevalent in the conventional banking, Islamic banking treats its customer in more than a creditor-debtor relationship but also as a partner in business and investment. This relation therefore made the customer involvement a potential factor and hence its influence on customers’ usage of Islamic banking products and services would be investigated. It is expected that the study will help to enhance our understanding on how customer involvement may influence the adoption of Islamic banking products and services among the customers in Nigeria. It is hopeful that upon validating the framework, findings from the study will provide useful insight and especially firsthand information on the role of customer involvement. This would be useful to the providers in gaining and retaining the existing customer, and to the policy makers, regulators and other relevant stakeholders to strategize in accordance with their respective roles towards development and sustainment of the industry. Keywords: Islamic banking Products, Perceived Attributes of Innovation, Customer Involvement, Adoption, Nigeri

    Preparation and characterisation of inexpensive porous kaolin hollow fibre as ceramic membrane supports for gas separation application

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    Low-cost, porous ceramic kaolin-based hollow fibre membrane support (HFMS) for gas separation application was developed via phase inversion technique. The ceramic suspensions with various ratios of kaolin to polyethersulfone (PESf) binder (5:1 to 9:1) were extruded and then sintered at 1200 to 1500 °C. The HFMSs were characterised by several analyses to investigate the effects of kaolin/PESf ratio and sintering temperature on the sample properties. The results showed that the kaolin/PES ratio and sintering temperature affected the considerable structure and physical properties of the kaolin membrane. It is observed that with increasing sintering temperature, the porosity and gas permeation of the HFMS decreased, while the bending strength and density of the HFMS increased. As a result, a porous HFMS with sufficient mechanical strength and high gas permeation characteristics is achievable if the appropriate kaolin/PESf ratio and sintering temperature are chosen

    Fabrication of flexible Au/ZnO/ITO/PET memristor using dilute electrodeposition method

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    DRAM has been approaching its maximum physical limit due to the demand of smaller size and higher capacity memory resistor. The researchers have discovered the abilities of a memristor, a Non Volatile Memory (NVM) that could overcome the size and capacity obstacles. This paper discussed about the deposition of zinc oxide (ZnO) on indium tin oxide (ITO) coated polyethylene terephthalate (PET) substrate by electrodeposition. Metallic Zn film was deposited on substrates with varying deposition time from 15 to 120 seconds in very dilute zinc chloride (ZnCl2) aqueous and subsequently oxidized at 150C to form ZnO/ITO coated PET junction. The deposited thin film was characterized via x-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). The results from I-V measurement show the deposited ZnO exhibits pinched hysteresis loop. The hysteresis loop becomes smaller with increasing deposition time. The 15 seconds electrodeposition gave the largest hysteresis loop and largest value of resistive switching ratio of 1.067. The result of the synthesized ZnO on the flexible substrate can be one of the alternatives to replace the current memory system as the flexible memory system

    Effects of different loading of magnesium oxide on activated carbon nanofibers for methane adsorption

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    In the last few years, with the escalating world demand for energy, natural gas had been suggested as an alternative for replacing heavy fossil fuels as it produces cleaner combustion, less harmful and economical. Moreover, continuous world’s depending on fossil fuels such as crude oils, coals and heavy fuels has become a major concerned to the entire world as the excessive burning of these fuels produced harmful gases that leading to global warming. For this reasons, in this work, PAN- based activated carbon nanofibers (ACNFs) with various loading of magnesium oxide (MgO) (0, 5, 10, and 15 wt.%) were prepared for methane (CH4) adsorption. The nanofibers (NFs) were successfully produced via electrospinning process at optimize parameters. The resultant NFs underwent three steps of pyrolysis process which are stabilization, carbonization and activation at 275 oC, 600 oC and 800 oC, respectively. The ACNFs/MgO were characterized using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), thermal gravimetric (TGA) analysis, X-ray diffraction (XRD) analysis, Brunaeur, Emmett and Teller (BET) method and CH4 adsorption tests. The adsorption equilibrium of CH4 on ACNFs/MgO was measured using a static volumetric technique. Adsorption of CH4 on the ACNFs/MgO was conducted at 30 oC for pressures up to 4 bars. The equilibrium data were stimulated using the Freundlich and Langmuir isotherms, with both models having R2 > 0.98. The results on BET surface area showed the ACNFs loading with 15 wt.% MgO has the highest surface area of 1893.09 m2/g and it was assumed to be a major contributor for higher gas adsorption capacity. From these findings, it is believed that ACNFs/MgO will become a new adsorbent with great potential for gas adsorption and storage in the near future applications

    Assessment of chain-of-custody certification costs for sawnwood manufacturers in Peninsular Malaysia

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    In response to environmental concerns, over the past two decades, many environmental organisations, government entities, wood product manufacturers and other companies in wood products supply chains have developed standards to encourage consumers to purchase wood originating from certified sustainable forests. This paper focuses on the chain-of-custody (CoC) component of certification. A study involving sawnwood manufacturers in Malaysia was conducted to determine an accurate cost of obtaining a Malaysian Timber Certification Council (MTCC) CoC certificate. There are three types of costs to obtain a MTCC–CoC certificate: (1) cost to meet CoC standard or requirement (an indirect cost), (2) auditing cost (a direct cost) and (3) surveillance visit cost (a direct cost). Results indicated that the cost to meet CoC standard is the major component involving 96% of the total cost of certification, whereas the auditing and surveillance visit each only involved 2% of the total certification cost. None of the three CoC costs were statistically correlated with company size (as measured by annual sales) but there was a statistically significant relationship between cost of surveillance visit and company size when measured by annual production

    Preparation of composite activated carbon nanofibers (ACNFs) for adsorption of heavy metals

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    The objective of this study is to prepare a new and highly efficient nanomaterial for heavy metals adsorption. Owing to that, activated carbon nanofibers (ACNFs) from precursor polyacrylnitrile (PAN) and manganese oxide (MnO2) have been prepared via electrospinning process for removal of heavy metals (lead and cadmium) from aqueous solution. The PAN/MnO2-based ACNFs were characterized in term of its morphological changes, specific surface area and functional groups analysis using SEM, BET and FTIR analysis respectively. The results showed that the specific surface area (SSA) of the electrospun composite ACNFs was higher than the neat ACNFs which is 499m2/g as compared to 800m2/g. SEM analysis illustrated that composite ACNFs have more compact fibers with presence of MnO2 beads and smaller fiber diameter of 437.2 nm whereas neat ACNFs possessed more aligned nanofibers with average fiber diameter of 575.5 nm. From adsorption study, the removal of Pb (II) and Cd (II) using both ACNF/MnO2 and ACNFs were higher than the commercial GAC with the removal efficiency is 100% for Pb (II) and 97% for Cd (II). The high removal efficiency of ACNFs/MnO2 is attributed by its larger SSA, presence of functional groups that play role in adsorption process such as hyroxyl and carboxyl groups and the role of manganese oxide as adsorbent itself (Han,2006). This excellent adsorption performance of ACNFs exhibits the potential of this composite adsorbent to solve the environmental issue of heavy metal contamination

    Hydrophobic ceramic membrane for membrane distillation: A mini review on preparation, characterization, and applications

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    Membrane distillation (MD) is one of the emerging separation technologies with extremely high separation factor, especially in desalination application. MD utilizes the hydrophobic membrane which only allows the passage of vapor through the membrane pores. Recent years have witnessed great progress in the development of hydrophobic ceramic membranes for MD applications due to their superior properties over the polymeric counterparts. However, ceramic membranes are hydrophilic in nature; hence, membrane surface modification process is required to acquire hydrophobic properties for MD applications. Direct grafting using silane agents is the most widely used ceramic membrane hydrophobization method. Hence, this mini review provides a complete summary of the research progress on the preparation and characterization of the hydrophobic ceramic membranes through silane agent grafting, as well as their applications in MD. Finally, future research directions have also been addressed

    Comparative study of Malaysian and Nigerian kaolin-based ceramic hollow fiber membranes for filtration application

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    Ceramic membrane has gained increasing interest in water filtration application due to its inherent characteristics. Low-cost clay materials are preferred to fabricate an efficient and cost-effective ceramic membrane. Among the ceramics, kaolin displays better mechanical, thermal, and chemical properties. However, natural properties of kaolin vary from different studies. Hence, cost-effective Nigeria (NK) and Malaysia (MK) kaolins were compared to study the fabrication of kaolin hollow fiber ceramic membrane for filtration application. The effects of kaolin loading concentration (34 and 37 wt. %) and sintering temperature (1200, 1350, 1400, and 1500 °C) on kaolin membrane fabrication were also studied. XRF studies indicated that the hydroxyl silica and alumina compositions were 56.76wt.% and 41.97wt% for NK and 55.21wt.% and 40.33wt% for MK. MK exhibited intense kaolinite peak with a broad range of particle size distribution. The mechanical stability of kaolin ceramic membrane increased with the increase of sintering temperature and kaolin loading concentration. Membrane morphology also varied with MK and NK. Interestingly, 34wt% kaolin at a sintered temperature of 1350 °C produced ceramic membrane with a high water flux. A similar trend was observed in both MK and NK, where the flux of 34wt% MK and NK are 565 and 460 L/m2h, respectively
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