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Prevalence and temporal trends in myopia and high myopia children in China: a systematic review and meta-analysis with projections from 2020 to 2050Research in context
Published 2025-02-01“…Funding: The Science and Technology Innovation Program of Hunan Province, China (2023RC1079, 2024RC5002).…”
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Spatiotemporally Combined Dimensionality Reduction Algorithm for Optimizing Long-term Operation of Multi-reservoir Systems
Published 2023-01-01“…To alleviate the “curse of dimensionality” and improve the solution efficiency while ensuring the quality of solutions in optimizing the operation of multi-reservoir systems,this paper proposes a spatiotemporally combined dimensionality reduction algorithm which integrates and improves the dynamic programming with successive approximation (DPSA) and the progressive optimality algorithm (POA).First,a chain-based successive approximation strategy is proposed to expand the DPSA's optimization mode from “single reservoir alternation” to “cascade reservoir chain alternation”,which makes up for the DPSA's shortcomings in dealing with the hydraulic coupling relationships among cascade reservoirs.Then,a dynamic variable decoupling strategy and perturbation mechanism are proposed to deal with the POA's blind search problem and dimensionality problem.Finally,the two improved algorithms are combined,in which the improved POA is applied to solving the optimization problems of cascade reservoir chains under the framework of the improved DPSA.The power generation operation problem of the cascade reservoirs in the Yuan River Basin of Hunan Province and the classical ten-reservoir problem are utilized to test the performance of the proposed algorithm.The proposed algorithm outperforms seven existing alternatives in terms of solution quality and efficiency.The results indicate that the proposed algorithm can effectively alleviate the “curse of dimensionality” in optimizing the operation of multi-reservoir systems,improve the efficiency while ensuring the quality of solutions and has potential to be applied to optimizing the operation of complex large-scale multi-reservoir systems.…”
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A Relation Routing Scheme for Distributed Semantic Media Query
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A Novel Approach for Operating Speed Continuous Predication Based on Alignment Space Comprehensive Index
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Effects of organic farming adoption on farmer’s subjective well-being: evidence from Xiangxi Prefecture, China
Published 2025-12-01“…This paper utilizes a sample of 450 farmers from four counties in the Xiangxi Tujia and Miao Autonomous Prefecture of Hunan Province, China, to compare the SW of conventional and organic farmers. …”
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148
Research on Solving Path of Negative Effect of “Information Cocoon Room” in Emergency
Published 2022-01-01“…Based on information ecology theory and the S-O-R model, this study designed questionnaires using a Likert five-level scale and selected 388 publics from several smart city pilot areas in Changsha, Zhuzhou, Shaoshan, and Yueyang cities in Hunan Province. Field research was conducted based on four factors, information ontology, information technology, government regulation, and social network, and empirical analysis was conducted through structural equations. …”
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Grain kernel damage during threshing: a comprehensive review of theories and models
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151
Experimental and Theoretical Investigation of Overburden Failure Law of Fully Mechanized Work Face in Steep Coal Seam
Published 2020-01-01“…Based on the geological conditions of Xiangyong coal mine in Hunan Province of China, the laws of roof deformation and failure in steep coal seam are obtained by similar simulation experiments. …”
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Prediction model for economy-driven provincial natural gas load in China
Published 2023-10-01“…Among them, Guangdong Province and Hunan Province have the largest absolute increase and the highest growth rate of consumption, respectively. …”
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153
The Diversity of Edible Flowers and Its Biocultural Role in Local Food System in Dali, Southwest China
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154
Thermal, flow and inclusions analysis of clogging mechanism in continuous casting process
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Laboratory Tests for Subgrade Reaction Coefficient in Seismic Design of Underground Engineering Domain
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Status and associations of transition shock among nursing students during clinical practice: A cross-sectional study.
Published 2025-01-01“…<h4>Methods</h4>This cross-sectional study was conducted on October 8-28, 2022 at four tertiary Class A hospitals in Changsha, Hunan Province, located in south-central China. A convenience sample of 620 full-time nursing students was surveyed to collect demographic information and assess their transition shock levels using the transition shock scale. …”
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Effect of Tronclass combined with team-based learning on nursing students’ self-directed learning and academic performance: a pretest-posttest study
Published 2024-07-01“…Participants From March to July 2023, 69 undergraduate third-year nursing students from a university in Hunan Province were selected through a whole-group sampling method. …”
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Description of a new leaf litter toad of Leptobrachella (Anura, Megophryidae) from Hunan, China
Published 2025-01-01“…The new species was distributed in Xiaoxi National Nature Reserve, Yongshun County, Xiangxi Tujia and Miao Autonomous Prefecture, Hunan Province, China. Phylogenetical analysis revealed that the new species is sister species of L. wulingensis (p-distance 0.019 in 16s rRNA gene, p-distance 0.073 in COI gene). …”
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Constructing Attention-LSTM-VAE Power Load Model Based on Multiple Features
Published 2024-01-01“…The dataset includes 2 years of load values and weather data collected in Caojiaping, Hunan Province, China. The experimental results show that the Attention-LSTM-VAE model has the lowest mean absolute error of 0.0374 and the highest R-squared value of 0.9714, verifying the accuracy of the model. …”
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