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Vertical-cavity surface-emitting laser (VCSEL) is a high-performance semiconductor device made of unique epitaxial layers grown on n-type GaAs or InP substrates. The VCSEL’s thermal resistance, Rth, is an essential metric that reflects its thermal properties and dependability. The purpose of this paper is to develop packaging for 1 mm² VCSEL chips made of a variety of materials, such as ceramic, lead frame and printed circuit board (PCB)-based packaging, as well as provide an idea or design that can withstand and perform well in terms of Rth and heat dissipation during operation. SolidWorks 2017 and AutoCAD Mechanical 2017 software were used to publish all thoughts and ideas, including the size dimensions (x, y and z) and material choices for each package.

Following the modelling and material selection, the next step is to use the Ansys Mechanical Structural FEA Analysis software to simulate all packaging for Rth and determine which packaging produced the best result, therefore, determining the heat dissipation for each packing. All parameters were used based on the standard cleanroom requirement for the industrial manufacturing backend process, where the cleanroom classification is 10,000 particles (ISO 7). The results demonstrated that the ceramic and lead frame provided good Rth values of 7.3 and 7.0 K/W, respectively, when compared to the PCB, which provided more than 80 K/W; thus, the heat dissipation for PCB packaging also increased.

As a result of the research, it was determined that ceramic and lead frame packaging are appropriate and capable of delivering good Rth and heat dissipation values when compared to PCB. In comparison to PCB, which requires numerous modifications, such as adding via holes and a thermal bar in an attempt to lower the Rth value, neither packaging requires improvement. Ceramic was chosen for development based on Rth's highest performance, with the actual device consisting of a lead frame and PCB. The Zth measurement test was carried out on a ceramic package, and the Rth result was comparable to the simulation result of 7.6 K/W, indicating that simulation was already proved for research and development.

The purpose of this study is to determine which proposed packaging design would give the highest Rth performance of a 1 mm² chip as well as the best heat dissipation. In comparison to other studies, VCSEL packaging used the header and window cap as package components with a wavelength of 850 nm, and other VCSEL packaging developments used the sub mount on ceramic package with an output power ranging from 500 mW to 2 W, whereas this study used a huge wavelength and an output power of 4 W.

The purpose of this paper is to present the investigation of damage severity of reinforced concrete (RC) beam subjected to increasing fatigue loading using intensity of acoustic emission (AE) signal.

Together 17 RC beams with dimension of 150 × 150 × 750 mm were prepared. Third point loading fatigue test was performed based on load at the first crack (Pcr) and the ultimate static load (Pult). The frequency of 1 Hz was used with the increasing fatigue loadings, 0.5Pcr (P1), 0.8Pcr (P2), 1.0Pcr (P3), 0.2Pult (P4), 0.5Pult (P5) and 0.6Pult (P6). The damage severity of crack for each phase of loading allowed the identification of the crack modes of the beams, namely, Zone A (no significant emission), Zone B (minor), Zone C (intermediate), Zone D (follow-up) and Zone E (major).

The intensity analysis indicated clear trend with respect to crack propagation in the beam and, hence, can be used to monitor the crack occurrence in the beam.

The intensity analysis has been carried out for the beam subjected to increasing fatigue loading. The analysis was based on the AE data obtained from channel basis and located event.

The purpose of this study is to examine the management of cash waqf fund generation through the implementation of istibdal in Kedah.

The data are obtained through literature and empirical data. The authors first review the literature on the importance of waqf fundraising, the implementation factors of istibdal waqf and the relevance of istibdal method as a waqf fund generation medium to understand the extent to which the scholarly articles have discussed these topics. Furthermore, the authors conducted face-to-face interviews with two Kedah Islamic Religious Council (Majlis Agama Islam Kedah [MAIK]) officers, who were directly involved in the affairs of istibdal waqf to obtain holistic information regarding implementing istibdal waqf properties in Kedah. As a result, several themes are defined from the interview data before being analysed based on the content analysis method.

The results of the study show two istibdal implementation processes outlined by the Kedah Islamic Religious Council (MAIK), namely, the istibdal implementation process for waqf land registered title deed, and waqf land registered as reserve certificate for religious use like mosque and cemetery. The results also showed three factors in implementing istibdal in Kedah: the acquisition of waqf land by the state authority (PBN), istibdal application by the state education department (JPN) and istibdal application by the mosque committee. Out of eight cases of istibdal implementation, four have generated cash funds for MAIK through investment methods from the sale of waqf lands and rental of replaced shophouses that are able to cover the expenses of managing waqf properties in Kedah. Several suggestions are also recommended for MAIK to improve its istibdal policy, thus enabling the institution to generate cash waqf funds at the maximum rate.

This study only focused on the implementation factors and the generation of cash waqf funds through istibdal in Kedah, while it can be expanded to other states like Terengganu, Kelantan and Penang. Furthermore, this study only interviewed officers who manage matters related to the affairs of waqf properties, as the session can actually be extended to other respondents, such as those specialising in cash fund generation investments and others.

This study proposed some improvements to the policy and guidelines of istibdal waqf property to MAIK after a few shortcomings were identified throughout this study. If improved, these proposals will have a significant impact, especially on the waqf properties involved in the implementation of istibdal, where it has the potential to bring cash generation and ensure the constant economic value of waqf properties.

This study has a tremendous impact on society, in which their areas have cash waqf funds that can be developed. It can benefit the needy and increase funds for the welfare expenditure of Muslims through rental income, investment and development. Progress on waqf property provides a high indication of the efficiency of an organisation in managing the waqf property. Thus, the public, especially the rich, is motivated to fulfil their charitable practices through waqf mechanism and share their wealth with the needy.

This study contributes to comprehensive field data on the implementation factors and generation of cash waqf funds through the implementation of istibdal in Kedah. The results of this study are significant to be used by waqf property management.

This paper aims to analyse the implementation of istibdal waqf property in several states of Peninsular Malaysia. To achieve this objective, this study identified the amount of waqf property ‘am (general) and waqf property khas (special) which were involved in the process of istibdal in each state, the factors that have caused the istibdal to be implemented, the rate of istibdal involved for each lot of waqf lands and the type of property replacement performed.

This study used the qualitative method, whereby the researchers had collected secondary data consisting of documents related to waqf from the State Islamic Religious Council (MAIN). The type of documents obtained were public records. The data collected were analysed using the content analysis techniques.

The results showed that there are several factors involved in the implementation of istibdal, namely, the acquisition of waqf land by the State Authority, applications by external parties for a particular interest and the initiatives taken by the MAIN on waqf property which is problematic and uneconomical to generate waqf fund. This study also found some Shariah and management issues, which were identified in the implementations of istibdal, whereas some cases of istibdal were only carried out on a small part of the waqf lands and there were also cases of the implementation of istibdal which have not been replaced with fixed assets as authorised by the istibdal parameter. This study suggests some improvements to the issues identified in the implementation of istibdal for waqf managers in Malaysia.

The limitation of this study is that it analyses only the documents that record the implementation of istibdal in the states managed by MAIN. Thus, the analysis performed was limited to the documents obtained without involving empirical data.

This study suggests some improvements to the implementation of istibdal waqf in the states studied. Therefore, these recommendations can be used by waqf property managers to improve the process of implementing waqf property istibdal so that it can be used to its maximum potential.

If the recommendations in this study can be implemented, the Muslim community will benefit greatly from the waqf property because it is being developed through the method of istibdal. This impact can increase the confidence of the Muslim community towards MAIN in managing waqf property and encouraging the Muslim community to contribute to waqf property for the welfare of the ummah.

This study involved data on a larger waqf istibdal implementations that involved several states in Peninsular Malaysia, which to the best of the authors’ knowledge, the analysis involving such large research data have not been implemented before.

The purpose of this paper is to evaluate mentoring behaviours in a public medical school in Malaysia and examine factors associated with those mentoring behaviours. The study is important because effective mentoring promotes the personal and professional growth of mentees.

A cross-sectional study was conducted with a population of 632 medical students. The authors used the Mentor Behaviour Scale (MBS) to measure four domains of mentoring behaviour: mentoring relationship structure, engagement, autonomy support and competency support. The authors evaluated the scoring of these domains as high, moderate or low scores.

A total of 508 (80.4 per cent) medical students in Years 2–5 participated in this study. Mentoring relationship structure, engagement and competency support were perceived as moderate scores, whereas autonomy support was perceived as a low score. Students in the early phases of study had better attitudes regarding mentoring behaviours. More frequent meetings and longer duration of meetings were significantly associated with better attitudes towards mentoring behaviour.

This paper evaluates contemporary mentoring behaviours in a Malaysian public medical school and contributes to non-western literature on mentoring. These behaviours were reflected in the four domains of the theory-based MBS.

This paper aims to explore the level of hibah knowledge among Muslims in Kedah and investigate its determinants, consisting of education level, education stream, religiosity, social influence and social media.

This study is quantitative in nature. Questionnaires were distributed to collect data from Muslims in Alor Setar, Kedah. In total, 195 questionnaires were collected and data were analyzed using descriptive analysis, correlation analysis and multiple regression analysis.

The study finds that Muslims in Alor Setar, Kedah have good knowledge of hibah. Further, education stream, religiosity, social influence and social media were identified as significant factors that influence their knowledge of hibah.

The first limitation is its narrow focus in surveying Muslims only in Alor Setar, Kedah. The second limitation is the limited number of determinants used in investigating hibah knowledge among Muslims and the techniques used in analyzing the data. Despite these limitations, the study’s findings provide invaluable insights into the factors influencing hibah knowledge among Muslims in Alor Setar, Kedah.

This study provides insights regarding the significant personal factors and environmental factors to increase Muslims’ knowledge of hibah. The link between the Islamic education stream and hibah knowledge provides a clear indication that Islamic education can curb the economic problems caused by the substantial amounts of frozen and unclaimed assets in Malaysia. A significant relationship between the environmental factors (social influence and social media) and hibah knowledge also implies that the government and private agencies related to Islamic estate planning and management may use these significant determinants as part of the marketing strategy to increase the usage of hibah as an alternative tool for estate planning.

This study contributes to a better understanding of Muslims’ knowledge about hibah. The government and related agencies in Islamic estate planning and management can now gain better insights into Muslims’ level of knowledge about hibah and the factors influencing their knowledge of hibah as an effective tool for Islamic estate planning and management. Hence, more effective strategies can be recommended to enhance the knowledge of Muslims on hibah. The findings of this study should be of value to the government in its effort to address the increasing number of frozen estates in Malaysia.

Successfully fostering employee ecological behaviors can reduce the environmental impacts of an organization while boosting performance. This paper aims to investigate the factors and organizational strategies for employees to engage in ecological behaviors.

The study uses a qualitative method. Academicians from four top-ranked research universities from Malaysia participated in semi-structured interviews.

The in-depth analysis of the interviews identified several factors (environmental attitude, feedback, green self-efficacy, leadership role, organizational culture and employee empowerment) and strategies (incentives; top management support; creating environmental knowledge and awareness; rules and regulations; and sustainability advocates) for promoting ecological behavior in the workplace.

This study was limited to Malaysian public research universities. Future research could investigate additional variables that might influence employee ecological behavior. Implications include policymaking, which emphasizes boosting environmental factors among academicians.

Research studies on employee ecological behavior are minimal. This research contributes to the literature by discussing how different stimuli and strategies are used in the top four-ranked green universities of Malaysia for ecological behavior in the workplace.

This study aims to examine the three dimensions of market orientation, namely, customer orientation, competitor orientation and inter-function coordination, which influence the accountability in the financial and social performance of tourism operators in large touristic cities.

In total, 95 usable questionnaires as the required data were collected from the top managers of four- and five-star hotels in Iran.

Partial least squares (PLS) results confirm that customer orientation and inter-function coordination influence both the financial and social performance of the hospitality sector yet reveal that competitor orientation has no significant relationship with social performance.

These findings not only highlight the compatibility of PLS with various forms of statistical analyzes but also furthers the current understanding of hospitality networks in megacity economies, where literature are scarce.

The findings of this study can help policymakers, tourism associations and practitioners enhance the accountability and sustainable financial and social performance of the hospitality industry in megacities. This study proposes some unique measurements for the social and financial performance of the hospitality sectors.

The paper states some new measurements for the social performance of the hospitality sectors. In addition, measuring the impacts of market orientation on the financial and social aspects of hotels is totally unique.

This study aims to examine the structural power wielded by the audit committee (AC) and the various bases of its power, whilst also exploring the behavioural tactics used by the AC to leverage its power in the oversight of the external audit.

Empirical evidence was drawn from semi-structured interviews with external auditors and AC members in Malaysia.

The AC’s structural power is derived from its formal and network position in the organisation. The AC possesses three forms of organisational-based power (legitimate, coercive and informational) resultant from its formal position, and these combine with the AC’s personal power (will and expert). The AC uses its personal power base to develop trusting relationships and to promote the exchange of information with other key corporate governance actors in the network position. Furthermore, the AC applies at least four behavioural tactics (assertiveness, ingratiation, rationality and coalition formation) to exercise its bases of power.

This study attempts to describe the AC’s structural sources of power, its organisational and personal power bases, and the behavioural tactics it uses when exerting its power.