Abstract.Personnel positioning platforms are widely used in hazardous chemical enterprises, but location output alone is still not a safety-control process. In many plant deployments, frequent location snapshots sit apart from rule configuration, alarm archives, response traces, and later review. The scheme uses the output of an existing positioning engine to support closed-loop alarm management. The localization algorithm is left unchanged. The main work is to convert location results into normalized events, electronic geofences, reusable alarm strategies, responsibility-delivery ledgers, response … Read more →

Abstract.Zhenbei Area is located on the southwestern margin of the Ordos Basin, north of Zhenyuan County. The Yanchang Formation is a key horizon for oil and gas exploration and development in this region. Although certain exploration achievements have been made in Chang 8, Chang 7 and Chang 3 members of the Yanchang Formation in Zhenbei Area, the Chang4+5 member has multiple oil-producing wells and great exploration potential. Controlled by different sediment sources, the Chang4+5 reservoir in Zhenbei Area is lithologically different from that in adjacent eastern blocks, and can be subdivided into … Read more →

Abstract.To address the persistent challenge of “high-value recognition but low adoption intention” of Building Information Modeling (BIM) in the field of historic building restoration, this paper takes the Zhengyangmen Gate Tower restoration project in Beijing as a typical case and adopts a chain-of-evidence analysis method to systematically investigate the application mechanism of BIM in real engineering contexts. The study finds that the Zhengyangmen project has developed a synergistic closed loop of “environmental drivers → organizational innovation → technological empowerment → value recognition”. … Read more →

Abstract.Artificial intelligence is reshaping English writing instruction, offering new possibilities for alleviating senior high school students’ anxiety in continuation writing tasks. Grounded in control-value and sociocultural theories, this study positions AI as a "cognitive partner." Through in-depth interviews with 12 students, the research reveals that AI mitigates anxiety by enhancing perceived control via three pathways: cognitive load sharing, immediate feedback regulation, and positive emotion activation. However, AI use may also trigger new forms of anxiety, including dependence, … Read more →

Abstract.Black pottery is widely attested across Neolithic China and the Classical Mediterranean, yet the physicochemical origins of its black coloration differ substantially between these regions. This review classifies ancient black pottery firing techniques into four categories based on coloring mechanism: (1) reduction firing, where iron oxides are converted to magnetite or wüstite under oxygen-depleted conditions; (2) carbon infiltration, where free carbon from incomplete combustion deposits in the ceramic body; (3) three-stage oxidation–reduction–reoxidation firing, which produces black … Read more →

Abstract.Against the backdrop of rapid iteration in the new energy vehicle industry and continuous upgrading of automakers' R&D systems, third-party automotive R&D institutions, as a vital part of the automotive industry’s R&D chain, play a key role in compensating for automakers’ R&D shortcomings, optimizing the allocation of industrial technical resources, and driving industrial technological iteration. To explore the market-oriented operation and innovative development paths of third-party automotive R&D institutions, this paper relies on cooperation cases with typical domestic automakers, selects … Read more →

Abstract.This review provides a comprehensive and critical assessment of the literature on stress relaxation and viscoelastic creep in polymer composites, covering constitutive modeling, relaxation-creep interconversion, energy dissipation, time-dependent damage, and temperature effects. Three major constitutive approaches are compared and evaluated: the Prony series, the Standard Linear Solid model with finite loading rate correction, and fractional-order viscoelastic models. For interconversion, the Boltzmann convolution integral, direct SLS prediction formulas, and the engineering J 1/E … Read more →

Abstract.As an important part of intelligent mine construction, target detection technology is crucial to ensure mine safety production. However, in practical applications, due to the drastic changes in lighting, severe dust interference, small target size and complex dynamic background in the mine environment, the information obtained by traditional detection algorithms often has large errors, leading to missed detection and false detection. In order to solve this problem, this study proposes a YOLOv8-ED model enhanced by EMA attention mechanism and DyHead dynamic detection head. By embedding EMA … Read more →

Abstract.The Coulomb rate state model (CRS) based on rate state-dependent constitutive law simulates the seismic activity of three main earthquakes in Wenchuan earthquake sequence. The results show that the model considering the trigger source of secondary aftershocks is more in line with the observation. We come to the conclusion that the trigger of the main earthquake sequence is generated by the self-excitation of small earthquakes under the stress field dominated by Coulomb stress of the main earthquakes of adjacent faults, which is similar to the point process model of ETAS. Read more →