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Suggested Topics within your search.
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2401
Les systèmes agroforestiers du domaine soudanien du Togo : historique et facteurs explicatifs de la dynamique évolutive
Published 2024-11-01“…Ainsi, des entretiens semi-structurés suivant un questionnaire rétrospectif et prospectif auprès des agriculteurs et des personnes ressources ont été menés. …”
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2402
Molybdenum carbide nanoparticles produced by pulsed laser ablation for efficient hydrogen evolution reaction in alkaline conditions
Published 2025-08-01“…Abstract Molybdenum carbides have emerged as an optimal alternative to noble expensive materials for hydrogen evolution reaction (HER). Most reported synthesis methods involve prolonged operations at high temperatures in reactive gases environments. …”
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2403
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2404
Measuring and Analyzing the Spatiotemporal Evolution of Agricultural Green Total Factor Productivity on the Tibetan Plateau (2002–2021)
Published 2025-07-01“…We then apply kernel density estimation and Dagum Gini coefficient decomposition to examine its spatiotemporal evolution. The main findings are as follows: (1) AGTFP in Tibet rose overall from 0.949 in 2002 to 1.068 in 2021, with a compound annual growth rate of 0.78%, yet remained below the national average; (2) significant regional heterogeneity emerged, with three typical evolution patterns identified: continual improvement (Nagqu, Qamdo), stable fluctuation (Lhasa, Xigazê), and risk of decline (Lhoka, Nyingchi, Ngari); (3) gains in pure technical efficiency were the primary driver of AGTFP growth, while insufficient scale efficiency was a key constraint; (4) AGTFP exhibited a “convergence–divergence–reconvergence” dynamic, with interregional disparities widening but structural patterns stabilizing; and (5) interregional inequality was the main source of overall disparity—its importance grew over the study period, with the largest gap observed between agrarian and pastoral zones. …”
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2405
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2406
Effect of Solidification Cooling Rate on the Microstructure Evolution and Corrosion Resistance of 2507 Super Duplex Stainless Steel
Published 2021-04-01“…For exploring the influence of solidification cooling rate on the microstructure evolution and corrosion resistance of 2507 super duplex stainless steel, the law of the microstructure evolution of 2507 super duplex stainless steel with different solidification cooling rates was investigated by optical microscope (OM) and scanning electron microscope (SEM). …”
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2407
The Evolution of Green Fiscal Policy Instruments in China: Content Analysis of Policy Documents From 2001 to 2023
Published 2025-06-01“…Using this framework, the study examines 169 central-level green fiscal policy documents from 2001 to 2023, demonstrating the internal structure and composition ratios of these instruments. …”
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2408
Study of the Faults Network of Kunashir Island (Kuril Islands) in Order to Reconstruct the Features of its Tectonic Evolution
Published 2024-06-01“…The results of the work confirm the presence of three systems of tectonic structures that differ in depth of emplacement, length, timing, kinematics, and causes of formation. …”
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2409
Effect of Fe content on microstructural evolution and mechanical properties of Ti-5Mo-xFe alloys
Published 2024-11-01“…Additionally, the microstructural evolution affected fatigue properties, with the basket-weave structure in Ti-5Mo-1Fe improving crack resistance, while the lamellar structures in higher Fe alloys exhibited lower fatigue resistance. …”
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2410
Multiscale computational framework linking alloy composition to microstructure evolution via machine learning and nanoscale analysis
Published 2025-07-01“…Abstract Achieving targeted microstructures through composition design is a core challenge in developing structural materials for high-performance applications. …”
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2411
Research on the evolution of urban defense in song dynasty based on shouchenglu 守城录(Record of urban defense)
Published 2025-05-01“…Based on Shouchenglu, combined with relevant historical documents and image data, this paper sorts out its content, and chooses to explore the internal logic of the evolution of urban defense in the Song Dynasty from three new perspectives: urban defense structure, city walls and their ancillary facilities, and coping strategies for siege weapons. …”
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2412
South American species <i>Solanum alandiae</i> Card. and <i>S. okadae</i> Hawkes et Hjerting as potential sources of genes for potato late blight resistance
Published 2020-04-01“…Our data may help to better understand the process of Rpi gene divergence along with the evolution of tuberbearing Solanum species, particularly in the series Tuberosa.…”
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2413
Damage evolution and failure modes of coal-concrete composites with varying height ratios under cyclic loading
Published 2025-07-01“…To ensure the safe implementation of underground reservoirs in abandoned coal mines, this study explores the mechanical behavior and failure mechanisms of coal-concrete composite structures under staged cyclic loading. Specimens with coal-to-concrete height ratios ranging from 0.5:1 to 3:1 were tested, with damage evolution continuously monitored using acoustic emission techniques. …”
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2414
Comparative Genomics and Adaptive Evolution of <i>Bifidobacterium adolescentis</i> in Geographically Distinct Human Gut Populations
Published 2025-08-01“…The pan-gene exhibited an open structure, reflecting the substantial genetic diversity within <i>B. adolescentis</i>. …”
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2415
Recent advances in heteroatom-doped RuO2 electrocatalysts for efficient acidic oxygen evolution reaction
Published 2025-12-01“…Highly active and durable acidic oxygen evolution reaction (OER) electrocatalyst is a vital component of cost-effective proton exchange membrane water electrolyzer. …”
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2416
The effect of laser welding parameters on mechanical properties and microstructure evolution of multi-layered 6061 aluminum alloy
Published 2025-06-01“…In this study, the key findings of evaluating laser beam welding parameters on the multi-layered structure of 6061 aluminum alloys fabricating by accumulative roll bonding process are reported, considering fostering mechanical properties concerning the influence of filler metal and welding speed on the weld bead quality by taking into account reducing welding defects. …”
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2417
Spatio-Temporal Evolution and Influencing Factors of Supply–Demand Coupling and Coordination in Civil Aviation Passenger Transport
Published 2025-01-01“…The interaction between supply and demand of civil aviation passenger transport serves as an important reference for airport planning, transportation structure optimization and dynamic matching of supply and demand. …”
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2418
The Dynamics of Long Terminal Repeat Retrotransposon Proliferation and Decay Drive the Evolution of Genome Size Variation in Capsicum
Published 2025-07-01“…Notably, the integrity and transcriptional activity of LTR-RTs decline over evolutionary time; older insertions exhibit greater structural degradation and reduced activity, reflecting their dynamic nature. …”
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2419
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2420
Molecular Diversity and Isoform Evolution in <i>Tityus obscurus</i> Venom: Insights from Proteomic Analysis
Published 2025-04-01“…These findings contribute to our understanding of venom molecular diversity and evolution, providing new insights into peptide structure–function relationships. …”
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