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Papers featured in the World Journal of Gastroenterology from 2006 to 2007

World Journal of Gastroenterology 2009年第35期15卷 4471-4475页

作者： hua yang Jing-Hai zhang Fang zhang Library ofShengjing Hospital China Medical University Shenyang110004 Liaoning Province China

AIM:To analyze papers published in the World Journal of Gastroenterology(WJG)from 2006 to *** investigated the highly cited papers for geographic distribution of the cited authors,as well as the distribution of the citing journals and year of citation. METHODS:Papers published in WJG from 2006 to 2007 and their citations were retrieved from the Science Citation Index Expanded(SCIE).The papers and their citations were analyzed according to bibliometric methods,including the number of citations for a given paper,the distribution of the highly cited papers,the geographic distribution of the cited authors,and the years of citation. RESULTS:Two thousand five hundred and six papers published in WJG from 2006 to 2007 were collected through SCIE,and 2335 of these were categorized as articles,reviews or *** 2006 and 2007, the average citation rate was 85.08%and 70.48%, respectively,and the average number of citations per paper was 4.33 and *** the 2506 papers, 1963 were cited 8788 times by other *** mean number of citations per paper was *** papers with over three citations accounted for 54.72% of all those that were cited,and the total number of citations accounted for 85.38%of the total of 8788 *** papers were cited over 30 times and the highest number of citations for any one paper was *** cited authors came from 70 differentcountries or regions,with China,Japan and the United States being the most *** highest average citation rate and number of citations per paper were for authors from Canada(96.30%,6.89),Hungary (92.31%,5.62),Australia(88.46%,5.46),Germany (87.04%,5.33),and Spain(87.50%,5.11).The impact factor was 2.081 and the self-citation rate was 9.41% in *** papers published in WJG in 2006-2007 were cited by 1597 ***:The papers in WJG have a high number of citations,and have been cited in numerous journals by authors from various *** results imply that WJG has an influenti

关键词： Citation analysis Bibliometrics World Journal of Gastroenterology

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Progress of Nb-containing catalysts for carbon dioxide reduction:a minireview

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Tungsten 2022年第4期4卷 284-295页

作者： Jun-Xian Gao Wen-Jie Tian hua-yang zhang School of Environment and Civil Engineering Jiangnan UniversityWuxi214122China School of Chemical Engineering and Advanced Materials The University of AdelaideAdelaideSA5005Australia

Nb-containing catalysts have the potential to catalyze carbon dioxide(CO_(2))reduction due to their strong surface acidity and CO_(2)activation ***,they have not been widely used in the development and design of catalysts due to the theoretical/cost/safety *** advances have been continuously reported in the literature,demonstrating to some extent the promise of catalytic applications of Nb-containing catalysts in this *** this minireview,we discuss the structure-activity relationships of Nb-containing catalysts for photo-,electro-,and thermocatalytic reduction of CO_(2).The engineering strategies of Nb-containing catalysts for enhancing the conversion and selectivity of CO_(2)reduction are discussed,ranging from Nb doping,noble metal decoration,surface acidity adjustment,oxygen vacancy engineering,and heterojunction construction to Nb or Nb_(2)O_(5) particle *** theoretical calculation research for the possible reaction paths and product selectivity is also ***,the prospects for designing and optimizing Nb-containing catalysts are *** a deep understanding of catalytic activity and reaction mechanism,this minireview is expected to present the optimization of the Nb-containing catalysts for efficient and highly selective CO_(2)reduction.

关键词： Niobium Carbon dioxide reduction Photocatalysis Electrocatalysis Thermocatalysis

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Improvement, Comparison, and Application of Field Measurement Methods for Grassland Vegetation Fractional Coverage

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Journal of Integrative Plant Biology 2005年第9期47卷 1074-1083页

作者： Xiao-Bing LI Yun-Hao CHEN hua yang Yun-Xia zhang College of Resources Sciences and Technology Key Laboratory of Environmental Change and Natural Disaster of the Ministry of Education Beijing Normal University Beijing 100875 China

As one of the important vegetation parameters, vegetation fractional coverage （VFC） is more difficult to measure accurately among a good many parameters of plant communities. The temperate typical steppe in the north of China was chosen for investigation in the present study and a digital camera was used to measure herb community coverage in the field, adopting methods of ocular estimation, gridding measurement, visual interpretation, supervised classification, and information extraction of color spatial transformation to calculate the VFC of images captured by the digital camera. In addition VFC calculated by various methods was analyzed and compared VFC, enabling us to propose an effective method for measuring VFC using a digital camera. The results of the present study indicate that：（i） as two common useful and effective methods of measuring VFC with a digital camera, not only does the error of estimated values of visual estimation and supervised classification vary considerably, but the degree of automatization is very low and depends, to a great extent, on the manipulator; （ii） although the method of visual interpretation may assure the precision of the calculated VFC and enable the precision of results obtained using other methods to be determined, as far as large quantities of data are concerned, this method has the disadvantages of wasting time and energy, and the applications of this method are limited; （iii） the precision and stability of VFC calculated using the grid and node method are superior to those of visual estimation and supervised classification and inferior to those of visual interpretation, but, as for visual interpretation and supervised classification, gridding measurements are difficult to apply in practice because they are not time efficient; and （iv） in terms of the precision of calculation of the VFC, an information-extracting model based on an intensity, hue, saturation （IHS） color space-multi-component series segmentation strategy is s

关键词： color space transformation digital camera field measurement grassland vegetationfractional coverage.

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Research into a Feature Selection Method for Hyperspectral Imagery Using PSO and SVM

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Journal of China University of Mining and Technology 2007年第4期17卷 473-478页

作者： yang hua-chao zhang Shu-bi DENG Ka-zhong DU Pei-jun School of Environment ＆ Spatial Informatics China University of Mining ＆ Technology Xuzhou Jiangsu 221008 China

Classification and recognition of hyperspectral remote sensing images is not the same as that of conventional multi-spectral remote sensing images. We propose,a novel feature selection and classification method for hyperspectral images by combining the global optimization ability of particle swarm optimization (PSO) algorithm and the superior classification performance of a support vector machine (SVM). Global optimal search performance of PSO is improved by using a chaotic optimization search technique. Granularity based grid search strategy is used to optimize the SVM model parameters. Parameter optimization and classification of the SVM are addressed using the training date corre-sponding to the feature subset. A false classification rate is adopted as a fitness function. Tests of feature selection and classification are carried out on a hyperspectral data set. Classification performances are also compared among different feature extraction methods commonly used today. Results indicate that this hybrid method has a higher classification accuracy and can effectively extract optimal bands. A feasible approach is provided for feature selection and classifica-tion of hyperspectral image data.

关键词： hyperspectral remote sensing particle swarm optimization support vector machine feature extraction

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Microstructure and texture evolution during recrystallization of low-carbon steel sheets

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Journal of Iron and Steel Research International 2017年第1期24卷 84-90页

作者： Dong-dong Zhuang Lei-gang Wang Yao huang Xiao-min Li hua-yang zhang De-wei Ren School of Material Science and Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina School of Material Science and Engineering Shandong UniversityJinan 250061ShandongChina Metallurgical Corporation of China Group Shanghai 201900China

Aluminum killed low-carbon steel sheets were cold rolled at different reduction ratios and annealed using different temperatures and holding *** Vickers hardness was *** results show that when cold rolling reduction ratios increase from 40% to 81%,recrystallization temperatures decrease from 602℃ to 572℃ during 4hisochronal annealing,as well recrystallization holding time decreases from 117 min to 5min during isothermal annealing at 610℃.All recrystallization temperatures and holding time can be calculated using the annealing experiment *** was examined through electron backscattered diffraction（EBSD）.The results show that as rolling direction preferentially grows,equiaxed grains grow into cake-type during ***-type grains are more beneficial to obtaining ideal〈111〉//ND（normal direcrtion）orientation texture.{111}orientation grains nucleate and grow up *** grains of{111}〈110〉orientations grow into new recrystallization grains of{111}〈123〉and{111}〈112〉during *** formation can be explained by directional nucleation.

关键词： Aluminum killed low-carbon steel sheet Recrystallization Annealing Vickers hardness Texture

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Universal design of three-dimensional porous graphene-iron based promotors for kinetically rationalized lithium-sulfur chemistry

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Journal of Energy Chemistry 2025年第1期100卷 192-200页

作者： hua Gao Yunfeng zhang Menglei Wang Ruoxuan yang Shuai Feng Xuan Cao Yaping zhang Zhongyuan Lu Yingze Song State Key Laboratory of Environment-Friendly Energy Materials School of Materials and Chemistry Southwest University of Science and Technology School of Material Science and Engineering Henan University of Technology College of Chemistry and Chemical Engineering Taishan University

Lithium-sulfur （Li-S） batteries are widely deemed to be one of the most potential candidates for future secondary batteries because of their remarkable energy ***,notorious polysulfide shuttling and retarded sulfur reaction kinetics pose significant obstacles to the further application of Li-S *** rationally designed highly active electrocatalysts can facilitate polysulfide conversion,the universal and scalable synthesis strategies need to be ***,a universal synthetic strategy to construct a series of three-dimensional （3D） porous graphene-iron （3DGr-Fe） based electrocatalysts involving 3DGr-FeP,3DGr-Fe3C,and 3DGr-Fe3Se4is exploited for manipulating the Li-S redox *** has been observed that the implementation of a 3D porous Gr architecture leads to the well-designed conductive networks,while the uniformly dispersed iron nanoparticles introduce an abundance of active sites,fostering the lithium polysulfide conversion,thereby bolstering the overall electrochemical *** Li-S battery with the 3DGr-Fe based electrocatalyst exhibits remarkable capacity retention of 94.8%upon 100 times at 0.2 ***,the soft-packaged Li-S pouch cell based on such a 3DGr-Fe electrocatalyst delivers superior capacity of 1060.71 mA h g-1and guarantees for the continuous 30 min work of fan *** investigation gives comprehensive insights into the design,synthesis,and mechanism of 3DGr-Fe based electrocatalysts with high activity toward efficient and durable Li-S batteries.

关键词： Redox reactions

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Deciphering the role of mtH2O2 in hepatic ischemia-reperfusion injury mechanisms with low-background super-resolution fluorogenic probe

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Science China Chemistry 2025年第1期68卷 297-307页

作者： Bin Fang Limin Wang Haoqin Li Jiaxin zhang yang Ding Pan Pan Li Bo Peng hua Bai Lin Li Frontiers Science Center for Flexible Electronics Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials &Engineering Northwestern Polytechnical University Institute of Flexible Electronics (IFE Future Technologies) Xiamen University

Hepatic ischemia-reperfusion injury（HIRI） is characterized by mitochondrial dysfunction and oxidative stress. Monitoring mitochondrial hydrogen peroxide（mtH2O2） levels in real-time through super-resolution imaging is crucial for elucidating its distribution in live cells and its mechanism of action during HIRI. However, low-background fluorogenic probes have been overlooked in the context of super-resolution imaging. In this study, we developed a low-background fluorogenic probe（MitoWG） with the potential for super-resolution morphology-correlated mitochondrial identification to track the fluctuates of mtH2O2in HIRI. Activation of the desirable fluorescence properties of the probe by mtH2O2was confirmed using structural illumination microscopy（SIM）, enabling high-quality mitochondrial imaging with exceptional specificity and *** in mtH2O2levels were successfully observed in both cellular and rat models of HIRI. Furthermore, we associated the decline in mitochondrial redox homeostasis with accelerated mtH2O2production during HIRI, which triggered mitophagy deficiency and led to cell death. In conclusion, Mito-WG possesses excellent photophysical and low-background properties for SIM imaging, making it a promising tool for mtH2O2tracking in HIRI research and clinical diagnosis.

关键词： hepatic ischemia-reperfusion injury low-background mtH2O2-activatable super-resolution imaging fluorogenic probe

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ImSpiRE: image feature-aided spatial resolution enhancement method

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Science China Life Sciences 2025年第1期68卷 272-283页

作者： Yuwei hua Yizhi zhang Zhenming Guo Shan Bian Yong zhang State Key Laboratory of Cardiovascular Diseases and Medical Innovation Center Institute for Regenerative MedicineDepartment of NeurosurgeryShanghai East HospitalShanghai Key Laboratory of Signaling and Disease ResearchFrontier Science Center for Stem Cell ResearchSchool of Life Sciences and TechnologyTongji University

The resolution of most spatially resolved transcriptomic technologies usually cannot attain the single-cell level, limiting their applications in biological discoveries. Here, we introduce ImSpiRE, an image feature-aided spatial resolution enhancement method for in situ capturing spatial transcriptome. Taking the information stored in histological images, ImSpiRE solves an optimal transport problem to redistribute the expression profiles of spots to construct new transcriptional profiles with enhanced resolution, together with extending the gene expression profiles into unmeasured regions. Applications to multiple datasets confirm that ImSpiRE can enhance spatial resolution to the subspot level while contributing to the discovery of tissue domains, signaling communication patterns, and spatiotemporal characterization.

关键词： spatial transcriptome histological images spatial resolution enhancement

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Multiphysics simulation and optimization of the in-situ beneficiation process of ilmenite minerals from lunar regolith

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Science China Earth Sciences 2025年第1期68卷 195-207页

作者： Peng zhang Xin LIU Guanghui LIU Wei DAI Hanzhe yang Haibo ZHENG Zhi WANG Ran NIU Yifan BAI yang zhang Chengbao LIU Ge yang Junwei yang Guang zhang Technology and Engineering Center for Space Utilization Chinese Academy of Sciences Beijing Hegong Simulation Co. Ltd

The exploration and utilization of lunar resources have become the major objectives of future lunar exploration missions. The classified collection and processing of lunar minerals is the basic prerequisite for the in-situ exploration and utilization of lunar resources. In this study, we propose a scheme for in-situ separation of magnetic minerals from lunar soils using the dry magnetic separation method. The scheme can realize the purpose of separating magnetic minerals from lunar regolith by altering the motion trajectory of lunar regolith particles with different magnetic properties. Detailed modeling of the dry magnetic separation device is conducted, and the three-dimensional distribution of magnetic parameters is calculated and analyzed. Based on the characterization and analysis of the Chang E-5's samples, the morphologies and physical parameters of lunar regolith particles are modeled and simulated. A discrete element simulation of the motion process of lunar regolith particles under multi-physical field conditions is performed, and the influences of key parameters on the beneficiation performance of lunar magnetic minerals are investigated. Our results indicate that optimal separation and beneficiation of lunar regolith particles can be achieved under specific conditions of magnetic field strength and drum speed. Additionally, we analyze the effects of lunar weak gravity conditions and the charged nature of lunar particles on the beneficiation process, showing that these factors can obviously enhance the beneficiation process of lunar ilmenites. This study demonstrates the feasibility of using the dry magnetic separation method for the beneficiation of magnetic minerals from lunar regolith, providing a theoretical basis for the scientific tasks of collecting, processing, and utilizing lunar mineral resources.

关键词： Lunar regolith In-situ resource utilization Magnetic separation Classified sampling

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Breeding Technology of eui-hybrids of Rice

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Agricultural Sciences in China 2002年第4期1卷 359-363页

作者： yang Ren-cui, zhang Shu-biao, huaNG Rong-hua, yang Shu-Ian and zhang Qing-qi(Institute of Genetics and Crop Breeding , Fujian Agricultural and Forestry University, Fuzhou 350002 , P. R . China ) Institute of Genetics and Crop Breeding Fujian Agricultural and Forestry University Fuzhou 350002 P.R. China

Induced mutants of elongated uppermost internode (eui) were directly obtained after irradiation on maintainer (B) and restorer (R) lines of hybrid rice. CMS lines(A) with eui (referred to as eA), restorer lines with eui (referred to as eR) as well as hybrid rice with eui gene (referred to as e-hybrids)were developed. The results showed that the eui mutation frequency averaged 0.10‰ at a range of 0.02‰- 0.47‰ varying with applied dosage and mutated materials. Genetic diversities of eui stock, and a new eui gene, temporarily designated as eui2(t), was identified. eA lines have a significantly elongated uppermost internode causing better panicle exsertion and possessing higher outcrossing potential, e-hybrids increased plant height by 3 -10 cm and headed 2-3 days earlier, as well as showed greater grain weight resulting in higher yield potential than that of corresponding original hybrids. The technology systems without GA3, a few of using GA3 in hybrid rice seed production, and the establishment of e-hybrid rice breeding system were also discussed in this paper.

关键词： Rice Radiation mutation eut-gene eui -CMS lines eui -restorer lines eui -hybrid rice

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