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The purpose of this paper is to increase wear resistance of aluminum.

The authors have studied the ways to improve the tribological performance of aluminum by assembling stearic acid on aluminum coated by sol-gel-derived TiO₂ film. The samples were characterized by infrared spectroscopy, contact angle measurements and a macro friction and wear tester.

Enhanced wear resistance was clearly obtained after functionalization of TiO₂ film on aluminum by stearic acid.

The relevant results might be helpful for guiding the surface modification of aluminum devices in industrial applications.

The purpose of this paper is to evaluate naturally occurring phytic acid (PA) as a green-water-based lubricant.

Lubrication is studied using a ball-on-disk tribometer with silica glass against silicon nitride contact, and the friction coefficient and wear are measured in the boundary lubrication regimes.

Excellent lubrication performance was found by using PA aqueous solutions. After the running-in process, the sliding coefficient of friction could drop to as low as 0.01 with a quite low concentration of 7.5 × 10⁻⁴ M. The lubricating performance of PA solution could be further improved by increasing PA concentration. The work suggests that the excellent lubricity of PA in aqueous solution can be mostly contributed to its adsorption on the silica surface.

The paper shows that the natural products could be used as water-based lubricant additives.

The purpose of this paper is to investigate the initial return patterns of Malaysian initial public offerings (IPOs) and whether shari'a‐compliant status would alter such patterns.

The effect of shari'a‐compliant status on the patterns of initial return of IPOs is analyzed using a sample of 386 IPOs issued between January 1999 and December 2007.

The preliminary results indicate that over the study period, the initial returns of Malaysian IPOs drop substantially from 94.91 percent reported from the pre‐crisis period of 1990‐1998 to 31.99 percent, a level more comparable to that reported in advanced markets. Since the initial returns do not revert to pre‐crisis levels, the new low IPO underpricing trend is more likely to be associated with the removal of pricing restraints. The results of regression analyses on the full sample, however, suggest that there is no drastic change with respect to factors that drive initial returns in Malaysian IPOs. With regards to shari'a‐compliant status, IPOs of this subsample show similar profiles to those of non‐shari'a counterparts. However, other than demand, the two subsamples are driven by different factors. Initial returns of shari'a‐compliant IPOs are driven by the size and type of offers, whereas those of the non‐shari'a IPOs are driven by risks.

Future studies should re‐examine the issue by taking into consideration the extensiveness of a firm's compliance to shari'a rules and other predictor variables.

This paper is one of the first to examine the effect of shari'a‐compliant status on the performance of IPOs.

The purpose of this study is to restore the spatial distribution of overseas remittance businesses in Shantou during the 1940s. It explores various socioeconomic factors that influenced the concentration of local remittance business investment in real estate. By reconstructing the spatial distribution of remittance business activities in Shantou, this study hopes to lay a foundation for further analysis of the business strategies of Chaoshan merchants.

This research draws on information from the published Swatow Guide, archival sources and cadastral maps to identify the location of remittance enterprises and the native place and overseas networks of property owners.

This study reveals that the spatial distribution of the remittance enterprises was determined by the native place origins of local property owners, and that the inflow of overseas Chinese capital contributed to real estate development in Shantou.

Despite the limited access to Chinese official archives, this paper manages to identify several building blocks and neighbors in Shantou for spatial analysis.

This study is the first attempt to use the geographical information system (GIS) method in Chinese urban history research and hopes to establish a larger historical database of Shantou as a sample for comparison.

This investigation advances the spatial study of urban history and overseas Chinese remittances in the maritime society of South China.

In response to a plea to eliminate zinc dialkyldithiophosphate (ZDDP) in engine oil, or at least reduce it to 0.05 per cent, unfortunately no new antiwear additives to reduce ZDDP have been found until now. The aim of this paper, therefore, is to resolve these problems by designing a novel benzothiazole compound and using it as a performance‐enhancing agent for ZDDP.

A benzothiazole derivative containing dialkyldithiocarbamate (BSD) was synthesized. The antiwear and load‐carrying properties of the additive and their synergistic effects with ZDDP were evaluated by a four‐ball tester.

The additive BSD possessed good load‐carrying capacity, and exhibits good synergistic antiwear and load‐carrying properties with ZDDP. The tribo‐chemical mechanism was also proposed.

The paper provides a good ashless additive which has good antiwear properties, and fulfils an identified resources need, which can offer practical help in industrial applications and also to an individual starting out on an academic career.

Although a regulatory framework was established in Malaysia to govern practising property managers, the satisfaction level on residential property management remains low. This unfortunate situation necessitates a review of property managers’ job scope and their current standards of practice. Hence, this study aims to investigate the correlation between the performance of property managers in residential property management job scope and resident satisfaction.

The scope of work in property management services was first identified through a review of existing research and literature on property management. Subsequently, a survey questionnaire was administered, and the data collected was analysed to determine the relationship between the performance of the scope of work in residential building management and resident satisfaction. The research data was obtained from occupiers of residential properties and the findings formed the basis for research with an objective to enhance current property management practice.

Residential buildings represent the major building stocks of the country. The research showed that a majority (7 out of 9) of the identified scope of work significantly influence and affect resident satisfaction. Additionally, the logistic regression analysis outcome further confirms that the performance of maintenance management is a significant predictor of resident satisfaction.

This research identifies the critical scope of work in property management services which affects resident satisfaction. It also suggests various recommendations to improve property management services to achieve a higher level of resident satisfaction.

The purpose of this paper is to examine whether initial public offering (IPO) over-subscription is a function of firm’s prestige signals conveyed by third parties with reputational capital such as underwriter, auditor and independent non-executive board member.

The relationship between prestige signals and over-subscription ratio (OSR) of IPOs is analysed using a cross-sectional regression based on a sample of 393 IPOs issued between January 2000 and December 2015.

The results indicate that IPOs underwritten by reputable underwriters have lower OSR than those underwritten by non-reputable underwriters. While issuer engages reputable underwriter to certify firm quality to reduce information asymmetry, the action brings with it lower initial returns for its IPO. Investors interpret the signal conveyed by issuer’s choice of underwriter from under-pricing perspective and respond accordingly by reducing IPO demand. This implies that investors regard under-pricing as a more valuable signal than firm quality signal associated with underwriter reputation. The findings also indicate that over-subscription increases in IPOs that have above average initial returns and higher institutional participation. Issuing firms that go public in a period of high IPO volume are associated with low OSR.

This is the first paper to examine the relationship between the prestige signals and OSR of IPOs in the Malaysian context.

This study aims to provide a microfluidic blood glucose sensing platform based on integrated interdigitated electrode arrays (IDEAs) on a flexible quartz glass substrate, adhering closely to pertinent electrochemical characterizations.

Sensors are the key elements of the modern electronics era through which all the possible physical quantities can be detected and converted into their equivalent electrical form and processed further. But to make the sensing environment better, various types of innovative architectures are being developed nowadays and among them interdigitated electrodes are quite remarkable in terms of their sensing capability. They are a well-qualified candidate in the field of gas sensing and biosensing, but even their sensitivities are getting saturated due to their physical dimensions. Most of the thin film IDEAs fabricated by conventional optical lithographic techniques do not possess a high surface-to-volume ratio to detect the target specified and that reduces their sensitivity factor. In this context, a classic conductive carbon-based highly sensitive three dimensional (3D) IDEA-enabled biosensing system has been conceived on a transparent and flexible substrate to measure the amount of glucose concentration present in human blood. 3D IDEA possesses a way better capacitive sensing behavior compared to conventional thin film microcapacitive electrodes. To transmit the target biological analyte sample property for the detection purpose to the interdigitated array-based sensing platform, the design of a microfluidic channel is initiated on the same substrate. The complex 3D Inter Digital array structure improves the overall capacitance of the entire sensing platform and the reactive surface area as well. The manufactured integrated device displays a decent value of sensitivity in the order of 5.6 µA mM⁻¹ cm⁻².

Development of a low-cost array-based integrated and highly flexible microfluidic biochip to extract the quantity of glucose present in human blood.

Potential future research opportunities in the realm of integrated miniaturized, low-cost smart biosensing systems may arise from this study.

The unique characteristic of Islamic bank leads in governance and disclosure. Using stakeholder, signaling, and market discipline theory, governance and adequate disclosure may increase bank soundness. This study aims to investigate the relationship of sharia disclosure and Sharia Supervisory Board in influencing Islamic bank soundness in the different regulatory framework of the country. Using purposive sampling, the research covered 84 Islamic banks in 16 countries during the period 2013–2015 with lag data of Islamic bank soundness. The result shows sharia disclosure influences on Islamic bank soundness for management efficiency, capital adequacy ratio, asset quality, and liquidity. The results also show that sharia disclosure mediates the indirect effect of SSB on Islamic bank soundness. The regulatory framework (sharia accounting standard and SSB regulation) shows moderating effect of regulation framework proved on the association of sharia disclosure with management efficiency, capital, and liquidity. The effect is indirectly depending on the regulatory framework for proxy management efficiency, capital, and liquidity. The implication of the research suggests that sharia disclosure could increase the market discipline mechanism of Islamic bank stream. The Islamic bank can increase the transparency using sharia disclosure as a branding for increasing public trust, even though in the deficient Islamic bank regulation countries.

Urban population growth has increased housing density, which has expanded the construction of low-cost low-rise residential in urban areas. Good building performance and effective low-cost low-rise residential quality lead to higher user satisfaction and improve building sustainability. This study aims to focus on the factors influencing the sustainability of low-cost low-rise residential in the West Malaysia urban area to assess resident satisfaction.

A mixed-mode approach with both qualitative and quantitative were used in this study. Semi-structured interviews were conducted with 12 stakeholders to identify the common factors influencing sustainability in low-cost low-rise residential. Subsequently, questionnaire surveys were formed and distributed among building users to determine the satisfaction level with low-cost low-rise residential building performance.

The finding demonstrates that accessibility is the key factor to achieving sustainability of low-cost low-rise residential. The finding also related to the factor that influences both stakeholders and building user satisfaction levels. This study also identifies key areas that require attention to improve user satisfaction with building sustainability and building performance of low-cost low-rise residential.

This study aims to determine stakeholder and building user satisfaction levels in relation to the sustainable building factor. A few indicators have been set up to identify the factors that most influence the sustainability and environment of low-cost low-rise residential buildings. Each subchapter has a few recommendations to improve the performance of low-cost low-rise residential. Each of the factors mentioned is related to social, economic and environmental sustainability. In addition, the study discovered a strong connection between low-cost low-rise residential performance and user satisfaction.