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The brake pipe system was an essential braking component of the railway freight trains, but the existing E-type sealing rings had problems such as insufficient low-temperature resistance, poor heat stability and short service life. To address these issues, low-phenyl silicone rubber was prepared and tested, and the finite element analysis and experimental studies on the sealing performance of its sealing rings were carried out.

The low-temperature resistance and thermal stability of the prepared low-phenyl silicone rubber were studied using low-temperature tensile testing, differential scanning calorimetry, dynamic thermomechanical analysis and thermogravimetric analysis. The sealing performance of the low-phenyl silicone rubber sealing ring was studied by using finite element analysis software abaqus and experiments.

The prepared low-phenyl silicone rubber sealing ring possessed excellent low-temperature resistance and thermal stability. According to the finite element analysis results, the finish of the flange sealing surface and groove outer edge should be ensured, and extrusion damage should be avoided. The sealing rings were more susceptible to damage in high compression ratio and/or low-temperature environments. When the sealing effect was ensured, a small compression ratio should be selected, and rubbers with hardness and elasticity less affected by temperature should be selected. The prepared low-phenyl silicone rubber sealing ring had zero leakage at both room temperature (RT) and −50 °C.

The innovation of this study is that it provides valuable data and experience for the future development of the sealing rings used in the brake pipe flange joints of the railway freight cars in China.

The underground logistics system (ULS) is noted to be an innovative delivery alternative that confers benefits such as improved logistics efficiency, reduced traffic congestion and better environmental protection for society. Consumer acceptance is crucial for the widespread application of ULS. Hence, this study aims to explore the drivers affecting consumers’ willingness to adopt an ULS anchored on the uses and gratification theory.

An online survey was implemented among 551 Singapore citizens and structural equation modeling was adopted to examine the theoretical model.

The findings suggest that most gratification variables (i.e. hedonic gratification, environmental protection gratification (EPG) and social gratification), mediated by perceived well-being and conscious attention, have significant effects on consumer adoption of the ULS. Moreover, as shown in the results of total effects, well-being perception exerts the largest impact on consumers’ adoption of ULS, followed by conscious attention, EPG, social gratification, hedonic gratification and convenience gratification.

This study contributes to enriching current theoretical research on consumers’ willingness to accept ULS, and providing several practical implications for logistic service providers and the government to promote consumers’ adoption of ULS.

This study aims to investigate the impact of client size, client risk, client profitability, client complexity, audit reporting lag, client loss, audit firm size, and industry type on determining external auditor fees pre- and during the COVID-19 pandemic on the non-financial companies (53 industrial companies and 41 service companies) listed at the Amman Stock Exchange (ASE) for the period of 2017–2021. The initial number of observations started with 470 observations. The results of the regression analysis for the pooled sample revealed a significant positive impact for the factors of client size, client complexity, and audit firm size on external audit fees. The same results were found for the other two sub-samples. However, client loss and industry type indicated a significant negative impact on external audit fees, except for the pre-COVID-19 pandemic period for the loss and the COVID-19 pandemic period for the audit firm size. Moreover, client risk, audit report lag, and client profitability have an insignificant impact on external audit fees for all three samples. Furthermore, the study recommends the following: Allocate adequate resources for auditing and consider the influence of company size on audit fees, adjust audit budgets based on profitability and the potential complexity of financial statements, and analyze and communicate the level of complexity to auditors, especially for companies operating in multiple industries or with intricate structures.

This study aims to analyze the value of maslahah in impulse buying behavior by investigating the influence of free shipping, cashback and religiosity of Muslim e-wallet users in East Java, Indonesia. Impulse buying, which is prevalent post-COVID-19, accounts for 60%–65% of total shopping, in contrast to conventional shopping, which is only 35%–40%.

This study used a survey study aimed at Millennials and Generation Z. There were 236 respondents, but only 207 were valid and complete. In addition, this study used structural equation modeling-partial least square (SEM-PLS) to validate the hypothesis and evaluate the model. Additional tests were also carried out using multigroup analysis (MGA) to obtain results based on gender perspective.

Free shipping and cashback were shown to have a significant positive impact on impulse buying behavior. Contrary to the initial hypothesis, religiosity showed a significant positive influence on impulse buying. Therefore, consumption behavior should be evaluated using the concept of maslahah, which prioritizes fulfilling the most important needs. Responsible consumption for a Muslim should align with Islamic principles, which teach that wealth should be used for good things. While ideally, maslahah comes first, in a 5.0 society influenced by discounts and added incentives, impulse buying has become a normalized phenomenon. Regarding gender, differences show that men prioritize practical incentives, whereas women focus more on rational considerations and opportunities.

This study uses a sample of several e-wallet brands with the most users in Indonesia; the respondents come from Millennials and Generation Z who are on the island of Java, Indonesia. Thus, it needs to be considered for generalization purposes by adding other brands and respondents from areas outside Java.

The results of this study include implications regarding strengthening the value of religiosity and maslahat in impulse buying of goods.

In line with the results and analysis of this research, which provides a maslahah perspective in the analysis and a gender perspective in the methodology. Thus, this can be recognized as a contribution of thought related to social implications.

This study explores impulse buying based on the gender of respondents, which is not often found in previous research.

Laser powder bed fusion (LPBF) additive manufacturing (AM) enables the design of complex parts using materials that are otherwise difficult to fabricate. Due to the high cost of machines, the parts produced by LBPF are expensive. Both researchers and industry are therefore focused on lowering costs by improving productivity while ensuring part quality. The purpose of this study is to quantify the productivity gains from using laser beam shaping, multi-laser printing and the use of large build chambers to print larger size parts.

This paper performs an expert elicitation with 18 experts.

This paper finds that experts believe that larger parts are less likely to print successfully. Increasing the part footprint is more detrimental to print success than increasing part height. Experts also believe that beam shaping is expected to provide limited print time improvement (median 4% reduction, 90% CI: 2%–25%) while improving part quality, whereas going from one to two lasers is expected to provide a median of 25% (90% CI: 10%–45%) print time improvement but degrade part quality. Through cost analysis of a representative part, this paper shows that the uncertainty in build success rates for large parts dominates expected cost reductions from laser beam shaping or multi-laser printing.

The study has three key limitations. First, it is possible that the sample of experts who agreed to take the survey biases the results. By definition, these are individuals who are willing to share what they know. There may be other experts who have a different view of the efficacy of the technologies evaluated here, but that view might be based on proprietary knowledge, which those experts are unable to share. Second, an elicitation captures what is known at a moment in time. As technology improves and as widespread deployment results in learning, the most consequential finding − that experts believed that success rates for large builds are likely to be low − may become less valid. Third, the overarching goal of this study is to assess technologies to improve AM productivity for high performance metal parts. A single study can only partially achieve this goal. The selection of technologies is constrained by both the desire to keep the study tractable and the suitability of expert elicitation as a method. For example, expert elicitation is not appropriate to assess the efficacy of technologies where sufficient empirical data or analytical techniques exist.

The results show that AM research and policy initiatives, including standards and regulatory schemes, must support efforts to improve the repeatability and reliability of the technological innovations that are needed to deploy AM in cost-critical or high throughput applications. These results also reinforce the criticality of workforce development components of existing (and future) AM policy initiatives. The elicitation revealed a significant number of factors that must be considered and potentially managed to ensure successful builds. Notably, no experts interviewed discussed all factors. While this may be a consequence of availability bias, it suggests that inexperienced AM users and nonexpert decision-makers, including managers, who would like to adopt new AM technologies, may be unaware of the myriad mechanisms by which build failure can occur and may fail to take mitigating action. This result contradicts a common belief that complicated parts can be fabricated with little to no expertise (assuming access to a design file for the part). Workforce development programs will be essential to help AM users develop the knowledge required to successfully implement metal AM.

Several strategies, including increasing the build volume to print larger parts or more parts at a time, using multiple lasers and beam shaping are proposed to improve the productivity of AM. However, the real-world efficacy of these strategies is not known. This work pools the judgment of experts to give decision-makers some insight into the current, real-world efficacy of these approaches.

This study aimed to evaluate the psychometric properties of SHS in Malaysian and Indonesian university students’ populations using the Rasch Rating Scale Model.

Specifically, the persons’ and items’ reliability and separation, rating scale’s functionality, unidimensionality, item targeting, item quality and item bias were evaluated using Winstep 4.8.1.0 on a sample of 318 Malaysian and 470 Indonesian university students.

Both samples show good unidimensional measures. In terms of certain psychometric attributes, the Indonesian and Malaysian samples have relatively similar qualities. The adoption of SHS in measuring the self-handicapping tendency indicates the scale works well for both Indonesian and Malaysian samples.

The findings allow researchers in Malaysia and Indonesia to confidently use the SHS to measure self-handicapping behaviours among university students. This will then enable the design and implementation of a comprehensive intervention programme aimed at reducing self-handicapping and improving the psychological well-being of these future change agents in both countries.

This instrument was first tested in the United States, but its psychometric properties have yet to be evaluated in Malaysia and Indonesia.

This paper aims to examine the relationship between self-care management and quality of life in elderly hypertensives at the Jember Nursing Home.

Thirty-five respondents were collected for a cross-sectional study with consecutive sampling. This study used the Hypertension Self-Management Behavior Questionnaire and Quality of Life-Elderly, as well as a questionnaire about individual characteristics. Kendall's Tau-b Test was used to analyze the data obtained from this study.

The majority of the elderly in the Jember Nursing Home reported having moderate self-care management (46.9%) and moderate quality of life (57.1%). This study found a significant positive correlation between self-care management and quality of life (p-value = 0.001), which was weak and significant (r = 0.282).

This research has limitations on the number of respondents used in this study, because this research was only conducted in one place (one site center). Include the respondent's features more in the past history, and only a few are related to the physical health domain. So that further research can be conducted on more respondents, with a wider coverage of locations and adding some of the characteristics of respondents related to the domain of physical and psychological health.

The role of gerontology in overcoming loneliness in the elderly is to increase health service activities, both primary and secondary, such as monitoring blood pressure, providing consultations and routine examinations for the elderly related to hypertension and being able to control the dietary intake of hypertensive foods in the elderly.

Elderly in nursing homes experience hypertension due to poor self-care management problems, which will have an impact on worsening quality of life conditions.

The purpose of this article is to analysis of the effects of green innovation ecosystem coopetition (cooperation and competition), environmental management practices (EMPs) and digital innovation (DI) on carbon footprint reduction.

To conduct the study, a questionnaire was administered to hotel managers from different regions of Brazil. Data were collected from 197 hotels and analyzed via partial least squares structural equation modeling.

The results show that green innovation ecosystem cooperation positively and significantly affects EMPs and DI. Green innovation ecosystem competition interactions also benefit the adoption of EMPs. However, they do not significantly influence the use of DI. The results indicate that hotels that are in a scenario of simultaneous competition and collaboration (coopetition) within the green innovation ecosystem can reduce carbon emissions when EMPs and DI are used.

The authors contribute to the literature by showing different pathways for reducing the carbon footprint of hotels. The results expand the authors’ knowledge by showing evidence that cooperation and competition interactions can produce distinct effects, especially on DI. Thus, this study has important practical implications for hotel managers seeking to improve their environmental practices and DI with the help of external multiagent resources and knowledge.

This research contributes to the literature by examining how cooperation and competition interactions in the green innovation ecosystem help in the adoption of environmental management and DI practices.

Firms are increasingly digitalizing their business processes and expanding them into digital platforms, which are believed to generate digital and relational resources that can facilitate and deliver innovations for firms. Instead of focusing on the extent of digital integration capability (DI), this paper seeks to empirically evaluate whether the DI asymmetry between the buyer and supplier firms influences bilateral information sharing and the buyer’s product innovation. We also examine the moderating effects of firms’ external (environmental dynamism) and internal (innovative climate) environments on these relationships.

Primary and secondary archival data on 180 buyer-supplier Chinese dyadic relationships were collected and analyzed using multiple linear regression models. Additionally, the Process macro was used to shed a nuanced light on the moderation effects of environmental dynamism and innovative climate.

The results show that DI asymmetry negatively impacts buyer firms’ product innovation through decreased information sharing. Environmental dynamism weakens the negative relationship between DI asymmetry and information sharing. Meanwhile, the innovative climate negatively moderates the relationship between information sharing and product innovation.

This study adds knowledge to the literature regarding the dark side of “one-sided digitalization.” By exploring the influences of unbalanced DI in buyer-supplier relationships, this study yields essential theoretical and managerial implications for product innovation success in a digital era.

This paper examines the effects of advertising value, informativeness, entertainment, irritation and personalization on (18–34) generation attitude and the usage of social media by this generation in Dubai. In addition, explore the extent of social media usage in the United Arab Emirates (UAE) in advertising and marketing.

Data were collected from 429 (18–34) aged consumers in Dubai. Structural equation modeling is utilized to estimate the effect of irritation, advertising value, entertainment, informativeness and personalization on attitude.

The results show the significant effects of advertising value, entertainment and informativeness on attitude, whilst irritation and personalization were insignificant. In addition, the study shows that the Internet and social media are heavily used by the (18–34) generation, and many hours are spent on social media, and they are widely used for product promotion and marketing in the UAE.

The study used data from the population aged 18–35 years living in Dubai from different nationalities. Academic and theoretical Implications: This study will open a door for further studies on consumers’ attitudes toward social media advertising among different age groups and studies investigating the impact of demographic characteristics of consumers on social media advertising, especially in the Gulf and Arab regions. However, a longitudinal study to estimate the long-term effects of independent and dependent variables is suggested.

Understanding the impact of entertainment, information and irritation on attitude toward social media advertising among the (18–34) generation of different nationalities living in the UAE can guide marketers in creating more effective marketing strategies for cross-national societies and the Gulf region in particular. This can be useful to marketers, advertisers and brand managers in designing advertisements on social media sites by embedding certain essential factors, which can positively shape attitudes and further develop behavioral responses.

Understanding the impact of entertainment, information and irritation on attitude toward social media advertising among the (18–34) generation of different nationalities living in the UAE can guide marketers in creating more effective marketing strategies for cross-national societies and the Gulf region in particular. This can be useful to marketers, advertisers and brand managers in designing advertisements on social media sites by embedding certain essential factors, which can positively shape attitudes and further develop behavioral responses.

This research is done in the UAE (the third-richest country in the Middle East) with more than 200 resident nationalities. This makes the study a cross-country study. In addition, the study focuses on the attitude of the multinational (18–34) age group in Dubai. This group is a mix of Y and Z generations. The paper bridges the gap between theory and practice in social media advertisements and marketing tools in the UAE and Dubai. The research has an economic and commercial impact that will help marketing and advertising firms to orient their campaigns to this group of population.