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The purpose of this paper is to establish an orbital launch window for manned Moon‐to‐Earth trajectories to support China's manned lunar landing mission requirements of high‐latitude landing and anytime return, i.e. the capability of safely returning the crew exploration vehicle at any time from any lunar parking orbit. The launch window is a certain time interval during which the transearth injection may occur and result in a safe lunar return to the specified landing site on the surface of the Earth.

Using the patched conic technique, an analytical design method for determining the transearth trajectories is developed with a finite sphere of influence model. An orbital launch window has been established to study the mission sensitivities to transearth trip time and energy requirements. The results presented here are limited to a single impulsive maneuver.

The difference between the results of the analytical model and high‐fidelity model is compared. This difference is relatively small and can be easily eliminated by a simple differential correction procedure. The launch window duration varies with launch date, from less than one hour to greater than 20 h, and the launch window occurs every day in the sidereal month.

The solution can be used to serve as an initial estimate for future optimization procedures.

The orbital launch window can be used to provide the basis for the preparation of an orbital launch timetable compatible with lunar missions and re‐entry conditions requirements.

Previous studies were mainly concentrated on the launch windows for the departure from the Earth. This paper investigates and establishes the orbital launch window for Moon‐to‐Earth trajectories.

Corporate social responsibility (CSR) is significant in the financial market. Despite plenty of existing research on CSR, few studies have quantified the fine-grained aspects of CSR and examined how diverse CSR aspects are associated with firms' trade credit. Based on the released CSR reports, this paper strives to measure the CSR fulfillment of firms and examine the relationships between CSR and trade credit in terms of textual features presented in these reports.

This research proposes a natural language processing-based framework to extract the overall readability and the sentiment of fine-grained aspects from CSR reports, which can signal the performance of firms' CSR in diverse aspects. Furthermore, this paper explores how the textual features are associated with trade credit through partial dependence plots (PDPs), and PDPs can generate both linear and nonlinear relationships.

The study’s results reveal that the overall readability of the reports is positively associated with trade credit, while the performance of the fine-grained CSR aspects mentioned in the CSR reports matters differently. The performance of the environment has a positive impact on trade credit; the performance of creditors, suppliers and information disclosure, shows a U-shaped influence on trade credit; while the performance of the government and customers is negatively associated with trade credit.

This study expands the scope of research on CSR and trade credit by investigating fine-grained aspects covered in CSR reports. It also offers some managerial implications in the allocation of CSR resources and the presentation of CSR reports.

The purpose of this paper is to mount Gurney flaps at the trailing edges of the canards and investigate their influence on aerodynamic characteristics of a simplified canard-configuration aircraft model.

A force measurement experiment was conducted in a low-speed wind tunnel. Hence, the height and shape effects of the Gurney flaps on the canards were investigated.

Gurney flaps can increase the lift and pitching-up moment for the aircraft model tested, thereby increasing the lift when trimming the aircraft. The dominant parameter to influence aerodynamic characteristics is the height of Gurney flaps. When the flap heights are the same, the aerodynamic efficiency of the triangular Gurney flaps is higher than that of the rectangular ones. Moreover, the canard deflection efficiency will be reduced with Gurney flaps equipped, but the total aerodynamic increment is considerable.

This paper helps to solve the key technical problem of increasing take-off and landing lift coefficients, thus improving the aerodynamic performance of the canard-configuration aircraft.

This paper recommends to adopt triangular Gurney flaps with the height of 3 per cent chord length of the canard root (c) for engineering application.

Ready-to-drink (RTD) tea beverages are widely consumed worldwide and play a prominent role in people’s daily lives, yet few studies have investigated the motivation of RTD tea beverage consumers as well as their underlying attitudes and desires. The purpose of this paper is to explore why these attributes are motivational factors by focussing on the attributes of RTD tea beverage products that motivate consumers to purchase RTD tea.

The attribute-consequence-value model of the means-end chain approach was employed to investigate consumer motivations for purchasing RTD tea beverages. Data were collected through a qualitative face-to-face survey of 153 RTD tea beverage consumers in Taiwan.

The results indicate that consumers purchase RTD tea beverages because the taste, flavor, packaging, and ingredients (attributes) satisfy their desire to drink RTD tea and fulfill the benefits of being delicious to drink, possessing thirst-quenching properties, and possessing health-promoting properties (perceived consequences), thereby fulfilling their ideal goal of experiencing enjoyment (perceived product value).

The findings may serve as a reference for producers of RTD tea beverages regarding product development and marketing.

The study aims to investigate the nurse job enjoyment and their participation in medical affairs to enchance the quality of patient care in Saudi hospitals. In addition, this study also investigates the management team's role in patient care quality through the mediating effects of nurse job enjoyment and participation in medical affairs.

The present study used a self-administered survey questionnaire to collect data from registered nurses in Saudi hospitals. In this study, 600 survey questionnaires were distributed online (Google Forms) and received 266 valid responses (44.33% response rate). In addition, SmartPLS-4.0 was applied to validate the research constructs and test the hypotheses via partial least squares structural equation modelling (PLS-SEM).

The study's findings indicate that the job enjoyment of the nurses and participation in medical affairs have positive and significant effects on the quality of patient care. In addition, the research findings also suggest that the management team of the hospitals has a significant indirect influence on the quality of patient care through the medicating effects of nurse job enjoyment and participation in medical affairs.

The findings of this study also offer various practical implications. This study showed the direct impact of the management team on job enjoyment, medical affairs and patient care quality. Therefore, hospital authorities and policymakers may emphasise clear communication, collaboration, respect and trust for the effective management team in providing higher-quality patient care. The present study suggests that hospital policymakers should strive to create a positive work environment, provide adequate resources, foster team spirit, offer incentives and allow flexible scheduling to ensure higher job enjoyment and increase nurse participation in medical affairs.

This study adds to the growing body of knowledge by investigating the effects of the management team, job enjoyment and nurses' participation in medical affairs on patient care quality. This study also enhances the theoretical depth by exploring the mediating impact of job enjoyment in predicting the relationships between the management team and the quality of care provided to patients. The present study provides guidelines for healthcare service providers or practitioners to focus on the nurses' job enjoyment and their engagement in medical activities to continuously improve the quality of patient care in the hospitals.