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Proper thermal management is a key to improve the efficiency and reliability of light-emitting diodes (LEDs). This paper aims to report the influence of applying thermally conductive materials on thermal performance of indium gallium aluminum phosphide (InGaAlP)-based thin-film surface-mounted device (SMD) LED.

The LED thermal and optical parameters were determined using the combination of thermal transient tester (T3Ster) and thermal and radiometric characterization of power LEDs (TeraLED) instruments. The LED was mounted on FR4, 2W and 5W aluminum (Al) package substrates. Measurements were carried out by setting different boundary conditions: air between LED package and substrate and using thermally conductive epoxy (TIM A) and adhesive (TIM B) of thermal conductivity 1.67 and 1.78 W/mK, respectively.

For LED mounted on FR4 package, the total real thermal resistance is improved because of TIM B by 6 and 9 per cent at 50 and 100 mA, respectively. Likewise, the relative decrease in total thermal resistance of LED on 2W Al package is about 9 and 11 per cent. As well, for LED mounted on 5W Al package, the total real thermal resistance is reduced by 2 and 4 per cent.

No much work can be found in the literature on thermal interface material effects on thermal performance of low-power SMD LED. This work can assist in thermal management of low-power LEDs.

Thermal behavior of light-emitting diode (LED) device under different operating conditions must be known to enhance its reliability and efficiency in various applications. The purpose of this study is to report the influence of input current and ambient temperature on thermal resistance of InGaAlP low-power surface-mount device (SMD) LED.

Thermal parameters of the LED were measured using thermal transient measurement via Thermal Transient Tester (T3Ster). The experimental results were validated using computational fluid dynamics (CFD) software.

As input current increases from 50 to 90 mA at 25°C, the relative increase in LED package (ΔR_thJS) and total thermal resistance (ΔR_thJA) is about 10 and 4 per cent, respectively. In addition, at 50 mA and ambient temperature from 25 to 65°C, the ΔR_thJS and ΔR_thJA are roughly 28 and 22 per cent, respectively. A good agreement between simulation and experiment results of junction temperature.

Most of previous studies have focused on thermal management of high-power LEDs. There were no studies on thermal analysis of low-power SMD LED so far. This work will help in predicting the thermal performance of low-power LEDs in solid-state lighting applications.

Thermal management of high-power (HP) light-emitting diodes (LEDs) is an essential issue. Junction temperature (T_J) and thermal resistance (R_th) are critical parameters in evaluating LEDs thermal management and reliability. The purpose of this paper is to study thermal and optical characteristics of ThinGaN (UX:3) white LED mounted on SinkPAD by three types of solder paste (SP): No-Clean SAC305 (SP1), Water-Washable SAC305 (SP2) and No-Clean Sn42/Bi57.6/Ag0.4 (SP3).

Thermal transient tester (T3Ster) machine is used to determine T_J and total thermal resistance (R_th–JA). In addition, the LED’s optical properties are measured via thermal and radiometric characterization of power LEDs (TeraLED) system. The LED is mounted on SinkPAD using SP1, SP2 and SP3 by stencil printing to control a thickness of SP and reflow soldering oven to minimize the number of voids. The LED with SP1, SP2 and SP3 is tested at various input currents and ambient temperatures.

The results indicate that at high input current, which equals to 1,200 mA, R_th–JA and T_J, respectively, are reduced by 30 and 17 per cent between SP1 and SP2. At same current value, R_th–JA and T_J are minimized by 42 and 25 per cent between SP1 and SP3, respectively. In addition, at an ambient temperature of 85°C, R_th–JA and T_J are decreased by 34 and 7 per cent between SP1 and SP2, respectively. Similarly, the reduction in R_th–JA and T_J between SP1 and SP3 is 44 and 10 per cent, respectively. Luminous flux, luminous efficacy and color shift of the LED with the three types of SPs are compared and discussed. It is found that the SP1 improves the chromatic properties of the LED by increasing the overall light efficiency and decreasing the color shift.

Thermal and optical performance of ThinGaN LEDs mounted on SinkPAD via three types of SPs is compared. This investigation can assist the research on thermal management of HP ThinGaN-based LEDs.

This study aims to examine the mediating role of entrepreneurial skills developed by undergraduates (ESDU) in the relationship between entrepreneurship education (EE) and the core values of sustainable development (CVSD).

This is a correlational study that used a structured questionnaire for quantitative data collection from 399 purposively selected Nigerian university undergraduates.

The results confirmed the statistically significant and positive mediating role of ESDU on the relationship between EE and the CVSD.

This study has contributed to the mediating role of ESDU in the relationship between EE and the CVSD. This interrelationship can further provide a better understanding or insights into how ESDU can help mediate the relationship between EE and the CVSD.

Purpose – This study aims to explore the composition of women parliament members in provincial parliament in Aceh Province.

Design/Methodology/Approach – The study which applied qualitative approach. The data were collected through interviews, observations and documentation study.

Finding – The findings show that the DewanPerwakilan Rakyat Aceh (DPRA) (provincial parliament) women representative are not in line with the order of election Regulation No. 12 the year 2003 which state should be an “affirmative action” or reaches about 30% of total members. In addition, ironically that women are not playing important and strategic roles, such as a chairman, deputy chairman, in each commission, discussion division, budgeting division, and regulation division. The biggest challenge of women parliament members in campaigning their rights and responsibilities at the parliament so that they would be improved in quality and capacity, as well communication and personal knowledge. Furthermore, building stronger linkages internally and externally (political parties, fraction, and all other parliament members), and (stakeholders, peer groups, NGOs, academics, expert etc).

Practical Implications – The solutions offered in this paper can be of concern to all parliamentarians to be able to provide equal opportunities for women legislative members in a strategic position in parliament.

Originality/Value – In addition to increasing the theoretical understanding of the political communication and the importance of the presence of the women in the local parliament.

This study aims to examine the effect of liquidity risk on deposit money banks’ (DMBs) performance in Sub-Saharan Africa. This study also tests the interaction effect of liquidity risk and nonperforming loans on the performance of DMBs’ in Sub-Saharan Africa.

This study uses a two-step system generalized method of moment to test the influence of liquidity risk on DMBs’ performance in Sub-Saharan Africa. A sample of 50 listed banks across six Sub-Saharan African countries, including Nigeria, Ghana, South Africa, Zambia, Kenya and Tanzania, were used. The bank performance proxy used are return on asset and return on equity, while net interest margin is used for robustness check.

The study’s findings reveal a significant and negative association between liquidity risk and bank performance. Moreover, the relationship between the nonperforming loan and bank performance is negative and significant. Furthermore, the interaction effect of liquidity risk and nonperforming loans on bank performance is found to be significantly negative for the two proxies of bank performance. The result is robust for the alternative bank performance measurements and econometric model, which adequately addresses endogeneity tendency.

To the best of the researchers’ knowledge, this is one of the earliest empirical studies that examine the effect of liquidity risk on DMBs’ performance across Sub-Saharan African countries. This study further differs from previous studies with the interaction term of liquidity risk and nonperforming loan included in the model.

The franchising business becomes an essential to the economy of Malaysia and social. It also considers a popular choice to develop entrepreneurs particularly among Bumiputera in Malaysia. Recognizing the importance of the franchising business, the Government of Malaysia through the Ministry of Domestic Trade and Consumer Affairs (MDTCA) has developed programs and activities to accelerate growth of the franchising business. In February 2020, a total of 915 franchise systems or franchisors have been registered under Malaysia Franchise and subsequently few franchisors have penetrated worldwide such as in Saudi Arabia, Indonesia, United State of America, and Australia. At the same time, Perbadanan Nasional Berhad (PNS) and Malaysia Franchise Association also strongly take part in many franchise initiatives, programs, and activities to support the development of franchising business in Malaysia. Besides that, Malaysia also has developed the Franchise Act to safeguard the franchising industry. Nevertheless, there still exist some issues and challenges. Hence, this paper aims to review the franchising business in Malaysia by discussing the development of franchise business in Malaysia, the supports, and the issues and challenges.

The purpose of this paper is to examine the factors that influence an individual’s intention to participate in the family takaful scheme based on decomposed theory of planned behaviour (DTPB). The central hypotheses for this study are that individual’s intentions to participate in family takaful scheme are a result of attitudes towards participation in family takaful scheme, subjective norms, and perceived behavioural control (PBC). Awareness and knowledge, as well as exposure and religiosity, are integrated into the model.

Using primary data collection method, 384 questionnaires were distributed to target respondents comprising of Muslims in Klang Valley, Malaysia. The data were analysed using Statistical Package for the Social Sciences and SmartPLS.

The DTPB model is effective in predicting individual’s intention to participate in family takaful scheme. Out of 15 hypotheses, 12 were found to be significant. Attitudes towards participation in family takaful scheme, PBC, knowledge, and exposure have significant influences on purchase intention. However, this study found the path from religiosity, awareness, and subjective norm to intention was insignificant.

The results of this study highlight the applicability of DTPB into takaful research and suggest marketing strategies for family takaful operators.

The value of this paper lies in its presentation of a model for factors that affect individual’s intention to participate in family takaful scheme.

This research focuses on the role of facilities management (FM) elements which are people who represent the household, and process, place and technology as the FM elements. The findings of this research include a list of suggestions to improve SSI implementation based on the FM elements. A waste separation behaviour model was established based on the findings, which was then further validated by experts in related fields.

This paper explains how the process, place and technology elements of FM moderate and influence waste separation behaviour among households. A conceptual framework is proposed, grounded on the theory of planned behaviour (TPB), and a questionnaire survey was conducted to collect primary data from 900 eligible respondents among the residents of high-rise residential units in Malaysia’s capital city, Kuala Lumpur. SmartPLS software was used to analyse the structural equation model (SEM) of the conceptual framework developed to test the moderator’s effects.

The findings show that the process, place and technology moderators significantly and positively affected the relationship between perceived behavioural control and waste separation behaviour. Process and technology moderators significantly and positively affect the relationship between moral norms and waste separation behaviour among households. This research focuses on the role of FM elements which are people who represent the household and process, place and technology as the FM elements. The findings of this research include a list of suggestions to improve Separation at Source Initiative (SSI) implementation based on the FM elements. A waste separation behaviour model was established based on the findings, which was then further validated by experts in related fields.

This study implements the case of categorical moderator type and multiple constructs toward the relationships of formative indicators and contributes to knowledge regarding the analysis of moderator variables and structural equation modelling.

Following the introduction of the revised Malaysian Code on Corporate Governance in 2012 (MCCG 2012), this study aims to investigate the influence of corporate governance structure on the quality of sustainability reporting from the perspectives of agency theory and resource dependence theory.

Based on an analysis of 126 firms’ annual reports for the year ended 2010 and 2014, this study analyses sustainability reporting quality before the introduction of MCCG, 2012 (year ended 2010) and after (year ended 2014).

The findings of the study show that there was a significant increase in the quality of sustainability reporting from 2010 to 2014. Results from multiple regression analyses indicate that the number of sustainability-related training attended by the board of directors and the percentage of directors with sustainability-related experience have a significant impact on the quality of sustainability reporting.

Observations from the study provide useful insights into the importance of the appointment of directors with sustainability-related experience as part of the criteria for directors’ appointment. Moreover, the board of directors is encouraged to attend sustainability-related training to help firms improve sustainability practices and reporting.

The increase in the quality of sustainability reporting indicates that companies are committed in ensuring that environmental degradation is put at the minimum level if not eliminated. It appears that companies are embracing the concept of sustainability reporting, and hence, contributing to improving and enhancing social well-being.

This study contributes to the discussion of both internal mechanisms (board independence and board capital) and external mechanisms (compliance to the code on corporate governance) of corporate governance structure on the quality of sustainability reporting. The findings can be used to identify necessary mechanisms that should be enhanced to strengthen the practice of sustainability reporting.