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Co-optimized recovery framework for damaged coupled power-water systems with temporal-spatial coordination and MT-SOPs
No full textPublisher Copyright: © 2025 Elsevier LtdThe resilience of modern coupled power-water (CPW) systems is challenged by various disruptions and risks. While the restoration and repair of individual systems are documented in the literature, their coordination in CPW recovery is rarely focused on. This work proposes a temporal-spatial coordinative method to improve CPW resilience by co-optimizing the recovery process comprising repair crew dispatch and adaptive service restoration. Firstly, a CPW model is developed based on physical mechanisms and component-level interdependencies. The model includes typical post-disruption features, like imbalanced three-phase power flows and pipe breakages. Secondly, a coordinated framework is designed for recovering damaged CPW, considering faulted components, available crew, and resources. The framework hierarchically comprises two stages. The first stage conducts absorption via components' operation and network topology adjustment. The second stage organizes the grouping and routing of repair crews, with further adjustments of absorption to exploit newly repaired components. In addition, multi-terminal soft open points (MT-SOPs) are applied to facilitate flexible power flow control and network reconfiguration of imbalanced power networks to augment the repair process. We also modeled the diverse correlated uncertainties and applied a sample-based optimization approach for timely and robust solutions. The proposed method is validated on a modified 36-node/33-bus CPW system, demonstrating a 32.51 % reduction in unsupplied loads compared to separate recovery. Additionally, incorporating MT-SOPs further reduces unsupplied loads by 16.94 % compared to traditional tie-lines. A large-scale evaluation on a 308-node/150-bus synthetic model further confirms the effectiveness of our framework in real-world CPW systems.Peer reviewe
In which authentic space can tourists feel free?
No full textPublisher Copyright: © 2025 Informa UK Limited, trading as Taylor & Francis Group.Tourism plays a key role in rural revitalization, drawing growing attention to rural tourism and spaces. However, existing research has yet to fully explore how tourists experience different dimensions of rural space. This study employs a mixed-method approach to examine which authentic spaces foster a sense of freedom for tourists in rural tourism contexts. Grounded in Yi-Fu Tuan’s theory of space and place, empirical research on two historic cultural villages in China reveals that: (1) tourists perceive space through three dimensions—architectural, pragmatic, and mythical; (2) architectural space does not significantly enhance the experience of mythical space, whereas pragmatic space does; and (3) both mythical and pragmatic spaces positively influence tourists’ intrapersonal authenticity, while architectural space only does so under specific conditions. This study offers valuable theoretical insights and practical guidance for rural tourism development.Peer reviewe
High-efficiency design of self-assembled monolayers for enhanced thermal conductance at solid-water interfaces via parallel screening with simple physical metrics
No full textPublisher Copyright: © 2025 Elsevier LtdSolid-water interfacial thermal transport is crucial at the micro-nano scale and has important applications in thermal devices and nanofluids. Functionalizing material surfaces with self-assembled monolayers (SAMs) can bridge the solid-water interfaces, reduce vibrational mismatches, and thereby enhancing interfacial thermal conductance (ITC). However, existing research on SAM thermal transport regulation only involves simple structures with scarce data, and high-throughput (HTP) discovery for complex SAM end group structures have not been reported. This work proposes a high-efficiency design framework for SAM end groups through parallel screening using simple physical indicators associated with ITC. Compared to obtain ITC through full simulations of all the relevant materials, here we calculate the interfacial interaction energy and vibrational spectral coupling strength of 250 complex end group structures in SAMs at gold-water interface and integrate ML models to perform multi-objective screening on another 750 complex candidates. Ultimately, through complete nonequilibrium molecular dynamics (NEMD) simulations, 9 SAM end group structures with ITC higher than 150 MW/(m2K) and the synthetic accessibility scores below 3 were discovered, which the ML models screening success rate exceeding 85%. Through thermal transport decomposition analysis of Coulombic and van der Waals interactions, the SAM with extremely high ITC can be attributed to strong Coulombic interactions with water molecules due to highly polar end groups. This HTP framework fills the gap in research on HTP screening of SAM end groups for ITC regulation. Additionally, the related computational data will contribute to future data-driven research on SAMs.Peer reviewe
Bioactive composite nanofiber mat of PVP/PVA incorporating Clematis hirsuta for regenerative wound healing: In vitro and in vivo evaluation
No full textPublisher Copyright: © 2025Acute wound healing remains a global challenge, especially in low- and middle-income countries. Contributing factors include oxidative stress, inflammation, bacterial infections, and limited access to advanced care. To address these challenges, a novel electrospun nanofibrous composite mat was developed by incorporating White Clematis hirsuta (CH) into a polyvinylpyrrolidone/polyvinyl alcohol (PVP/PVA) matrix to promote tissue regeneration. CH is a biocompatible, cost-effective alternative to silver-based dressings, which are often cytotoxic and expensive. Leveraging electrospinning, this material provides a tunable wound dressing with high surface area and controlled release of bioactive compounds. Chromatography-mass spectrometry (GC-MS) analysis identified phenolic acids, phytol, gamma-sitosterol, and squalene, known for their anti-inflammatory, antioxidant, and antimicrobial effects. Fourier-transform infrared spectroscopy and X-ray diffraction confirmed bioactive integration, while scanning electron microscopy revealed uniform bead-free fibers (246–428 nm). Higher CH concentrations (up to 3 %) enhanced antibacterial activity, with inhibition zones of 21.5 mm and 21.8 mm against Escherichia coli (E.coli) and Staphylococcus aureus (S. aureus), respectively, and improved hydrophilicity. Water Vapor Transmission Rate increased from 1580 to 2178 g/m²/day, and in vitro drug release reached 68 % over 72 h, indicating sustained release. Biodegradation increased with CH addition, from 11.4 % (control) to 17.7 % (3 % CH), supporting moisture retention and gradual matrix breakdown. Cytotoxicity studies showed excellent biocompatibility, with fibroblast viability increasing by 114 % and 117 % at 2 % and 3 % CH, respectively. In vivo studies demonstrated accelerated healing (95.2 % closure), enhanced angiogenesis, collagen deposition, re-epithelialization, and reduced inflammation. This study offers a sustainable, cost-effective wound care solution by integrating traditional medicine with biomaterials science.Peer reviewe
Have our insights had impact? : Assessing JBVI's influence at its 10th anniversary
No full textPublisher Copyright: © 2025 Elsevier Inc.The 10th anniversary of the Journal of Business Venturing Insights (JBVI) is an opportune time to take stock of the journal's impact and reflect on how JBVI and its authors have influenced society. To understand this influence, we conducted a study to identify and assess the outcomes of JBVI's ten-year efforts to be at the forefront of stimulating entrepreneurship insights. Using impact assessment tools and a survey of JBVI authors, we found that JBVI's impact is multidimensional and involves scholarly, media, practitioner, and policy influence. This impact is attributable to JBVI's unique publication process, editorial policies, and research initiatives. Moreover, JBVI's impact is co-produced by the actions of editors, authors, and the public and involves the creation of actionable insights at the nexus of academic opportunities and societal needs. The findings point to new opportunities for JBVI and other journals to further enhance their impact.Peer reviewe
Experimental study on the rock-breaking mechanism of annular-grooved structure and rotary direction for impregnated diamond bits
No full textPublisher Copyright: © 2025Impregnated diamond (ID) bits have been widely used for drilling superior hardness, highly abrasive or non-homogeneous rocks. A reverse rotary dual ID bit provides better drilling performance than a conventional unidirectional rotary ID bit. However, the mechanism of rock-breaking by the annular-grooved structure and reverse rotary characteristics of ID bit is still unclear. In this study, a conventional ID bit, an annular-grooved ID bit, and a dual ID bit were prepared. Drilling experiments were carried out in hard, medium-hard, and soft rocks. The size distribution and surface topography of cuttings, the microscopic morphology of the rock ridges, the rate of penetration (ROP) and mechanical specific energy of three ID bits were comparatively analyzed. The results show that the annular-grooved structure can form a rock ridge at the borehole bottom, which will be broken volumetrically. Scanning electron microscope analysis shows that the dual ID bit has an effect of micro-shear breaking in addition to grinding and micro-volume breaking of the rock, which exacerbates crack propagation. Furthermore, the shear stresses on each side of rock ridge are superimposed under reverse rotation, which accelerates the breaking of rock ridge. As the rock hardness decreases, the ROP gain of dual ID bit is more obvious. ROP of the dual ID bit for drilling granite, limestone and sandstone is 2.1, 2.7 and 5.2 times higher than those of conventional ID bit. The key findings of this work will help to real the mechanism by which the annular-grooved structure and reverse rotary characteristics of the dual ID bit are responsible for improving rock-breaking efficiency.Peer reviewe
Systematic design and analysis of an industrial symbiosis: Integrating power-to-X technologies with bioprocessing systems
No full textPublisher Copyright: © 2025 Elsevier B.V.This research presents a vital framework for designing and evaluating the feasibility of industrial symbiosis projects. By employing the theory of Metabolic Analysis, the framework systematically assesses the synergistic potential of integrating novel bioprocesses, such as single-cell protein production, with Power-to-X (Pt-X) and carbon capture technologies. A case study application demonstrates the framework's capacity to uncover critical trade-offs in energy and waste streams, thereby providing a clear, data-driven foundation for creating circular manufacturing networks. Finally, the study underscores the necessity for continued development of the tool itself, specifically to create pathways for integrating its complex output data into subsequent techno-economic and life cycle assessments.Peer reviewe
A two-stage distributionally robust low-carbon operation method for antarctic unmanned observation station integrating virtual energy storage and hydrogen waste heat recovery
No full textPublisher Copyright: © 2024To reduce the carbon emissions of Antarctic unmanned observation station (UOS) operations, this paper proposes a two-stage distributionally robust low-carbon operation method, integrating virtual energy storage (VES) and hydrogen waste heat recovery (HWHR). First, a multi-energy complementary model incorporating wind, solar, hydrogen, and battery storage is developed for the UOS with a composite enclosure structure. The model accounts for wind turbine icing and photovoltaic snow coverage, and incorporates electro-thermal coupling between hydrogen energy systems and heat pumps (HPs). Then, a fuzzy set is constructed via the imprecise Dirichlet model (IDM), establishing the uncertainty set characterizing Antarctic wind and photovoltaic (WP) output and outdoor temperature at a specific confidence level. Further, a two-stage distributionally robust optimization strategy for the UOS considering VES and HWHR is developed, and the conservatism level can be adjusted by tuning uncertainty control parameters. Finally, the original UOS optimization problem is decomposed and solved iteratively using the Inexact Enhanced column-and-constraint generation (IE-C&CG) algorithm. The test results with real meteorological data from Antarctica demonstrate that our method effectively leverages the heating flexibility of the HP and hydrogen energy equipment in the UOS, and significantly reduces UOS carbon emissions while ensuring the required operating temperature for scientific equipment.Peer reviewe
Sustainable 6G architecture: An organic evolution of 5G networks
No full textPublisher Copyright: © 2025 Elsevier B.V. | openaire: EC/HE/101095759/EU//Hexa-X-IIThe evolution of cellular networks towards 6G presents an opportunity to enhance not only coverage and capacity but also environmental, social, and economic sustainability. This paper proposes a sustainable cloud-native and modular 6G architecture that integrates AI-driven resource orchestration and intent-based network management. The proposed design introduces a modular approach where network functions are structured into adaptable building blocks, allowing for seamless scalability and flexible deployment tailored to emerging use cases. AI is embedded across multiple layers to optimize energy efficiency, improve service accessibility, and enable intelligent decision-making. Furthermore, the architecture leverages integrated network-compute paradigms, enhancing service placement efficiency and minimizing energy consumption through optimized edge computing solutions. Intent-based management further refines network operations by shifting from manual configurations to high-level policy abstractions, improving resource efficiency while reducing operational complexity. This paper also explores enhancements to both the Radio Access Network (RAN) and Core Network (CN), improving network modularization and signaling efficiency. The proposed framework ensures a smooth transition from 5G to 6G while addressing key challenges such as network sustainability, trustworthiness, and digital inclusivity. By incorporating these elements, the envisioned 6G architecture aims to establish a resilient, energy-efficient, and future-proof network ecosystem.Peer reviewe
Efficient photocatalytic CO2 N-formylation of amines over Pd/Bi-ZnOx without extra reductant
No full textPublisher Copyright: © 2024 Elsevier B.V.Photocatalytic N-formylation of amines with CO2 is a promising strategy to convert CO2 into value-added chemicals sustainably. In this work, Pd-Bi bimetallic modified ZnO enriched in oxygen vacancies is constructed for photocatalytic CO2 formylation of benzylamine at room temperature without any reductants. The Pd and Bi sites reduce the band gap energy of ZnO, promote the separation of the photogenerated charge carriers and enhance the adsorption capacity of CO2. The yield of N-benzylformamide reaches 31.7 mmol g−1 with a selectivity of 85.3 % after 3-hour radiation in N,N-dimethylformamide (DMF) solvent. The aldehyde group involved in the formylation of benzylamine is derived from the decomposition of DMF, which is regenerated with the aldehyde group coming from the reduction of CO2. The decomposition-regeneration cycle of DMF solvent enlarges the reaction region, which is beneficial to the activity and selectivity of the formylation process. The synergistic photocatalytic system shows a good universality. This study provides a new approach to high-efficiency CO2 utilization and formamide production.Peer reviewe