The key to whether elderly individuals in the community can enjoy their later years peacefully lies in the service capabilities of community comprehensive elderly care service facilities (CCECSF) under the Public-Private Partnership (PPP) mode. To maintain a high level of service capability in community comprehensive elderly care service facilities under PPP mode, scientific evaluation of the effectiveness of these facilities is equally crucial. This article first constructs a post-occupancy evaluation index system of community comprehensive elderly care service facilities under PPP mode that includes three evaluation attributes and fifteen evaluation criteria based on the Chinese culture and lifestyle habits. Regarding the issue of direct users being unable to directly participate in evaluations, the uncertainty in evaluation information, and the volatility of evaluation results, a multi-stage post-occupancy evaluation model is constructed based on probabilistic linguistic term set, TOPSIS model and multi-stage decision theory. The above post-occupancy evaluation index system and evaluation model together constitute a multi-stage post-occupancy evaluation framework for community comprehensive elderly care service facilities under PPP mode. The outcomes of the case study indicate that the post-occupancy evaluation index system can offer a scientifically guided approach for evaluating the service level of community comprehensive elderly care service facilities under the PPP mode; meanwhile, the multi-stage evaluation model can enable direct user participation in the post-evaluation of facility usage and improve the robustness and reduce the fluctuation of the evaluation results, so as to improve the scientificity of the evaluation results.

The ecological behavior of property management enterprises is crucial to the performance of green buildings. The understanding of property management enterprises’ ecological behavior, however, is rather limited. The purpose of this paper is to analyze the mechanism of the affecting factors upon the ecological behavior of property management enterprises. The qualitative analysis method was used to collect and identify the influencing factors, which were further classified as those of stimulus, status, scenario, and result. A theoretical model of the action mechanism of influencing factors and related hypotheses has been constructed based on the planned behavior theory. The proposed hypotheses have been empirically analyzed by the quantitative analysis of a questionnaire survey. The results indicate that there are significant differences in ecological behavior implementation under different status factors, while the impact of enterprise nature on property management ecological behavior is not significant. Regarding the stimulus factors, market pressure and government regulation are the main external incentive factors. The scenario factors could be resistant forces and moderate the implementation of ecological behavior. For the result factors, property management enterprises pay attention to whether the implementation of ecological behavior can produce direct benefits. The research findings constitute valuable references for further development of the property management industry.

To enhance the sustainable operation of electricity–hydrogen coupling multi-microgrids (EHCMMG), this study proposes a multi-objective dispatch optimization framework driven by electricity price prediction. Although EHCMMG plays a vital role in renewable energy integration and multi-energy synergy, three major sustainability-related research gaps remain: insufficient consideration of cross-regional, multi-market, and multi-stakeholder interests; inadequate electricity–hydrogen demand response mechanisms; and limited investigation of uncertainty modeling that balances economy and security. To address these issues, this study first designs an EHCMMG architecture that supports electric-hydrogen interactions both within and outside the cluster. An electricity price prediction-driven multi-objective dispatch optimization model oriented toward multiple stakeholders is then proposed. This model incorporates incentive-based electricity–hydrogen demand response and constraints on carbon emissions. Moreover, operational uncertainties arising from renewable energy generation are addressed through the coordinated integration of spinning reserve capacity constraint and chance-constrained programming. The results show that the cluster cost, the market integrated operator (MIO) net revenue, user energy cost, and total carbon emissions are CNY 17.502 million, CNY 12.684 million, CNY 5.556 million, and 8168.126 tons in baseline scenario, respectively. The proposed model effectively balances economic efficiency, operational reliability, and low-carbon performance, thereby enhancing the overall sustainability of the EHCMMG.

Construction projects are characterized by fragmented project organizations, complex stakeholder coordination, and inefficient information communication, which often hinder collaborative project management and digital coordination efficiency in the architecture, engineering, and construction industry. Internet-based multi-stakeholder collaborative management technology (IMCMT) has emerged as an important digital solution for improving information sharing, real-time communication, and collaborative project management among project participants. However, its implementation is not optimistic because building professionals are reluctant to implement IMCMT. This study aims to identify the determinants affecting IMCMT implementation and investigate the practical roadways to promote building professionals’ IMCMT implementation. The data were collected from 323 valid building professionals in China through the questionnaire survey. The findings reveal that perceived usefulness and perceived ease of use influence building professionals’ IMCMT implementation through both direct and indirect mechanisms. The relation between building professionals’ behavioral intention and actual usage behavior is expanded by adding moderators of normative pressure and innovative culture. Moreover, practical roadways are explored by identifying the mediating role of technical values and behavioral intention and by adding the moderating role of organizational institutions. This study identifies practical roadmaps to promote building professionals’ IMCMT implementation by identifying its determinants and testing their relations. It also enriches the emerging construction information technology acceptance literature by identifying its boundary conditions and practical mediators in the architecture, engineering, and construction industry.