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Overexpression of a Foreign Bt Gene in Cotton Affects the Low-Molecular-weight Components in Root Exudates

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Pedosphere 2007年第3期17卷 324-330页

作者： YAN wei-Dong SHI wei-ming LI bao-Hai ZHANG Min State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil Science Chinese Academy of Sciences Nanjing210008 （China）

Most research in the past using genetically modified crops (GM crops) has focused on the ecological safety of foreign gene (i.e., the gene flow), gene products (for example, Bt (Bacillus thuringiensis) protein), and the safety of transgenic food for humans. In this study, changes in both the species and amounts of low-molecular-weight components in cotton (Gossypium hirsutum L.) root exudates after foreign Bt gene overexpression were investigated under different nutritional conditions. Transgenic cotton containing Bt (Bt-cotton), supplemented with all the mineral nutrients, secreted more organic acids than the wild-type cotton (WT). When nitrogen was removed from the full-nutrient solution, the amount of organic acids secretion of Bt-cotton was lesser than that of WT. The roots of the transgenic cotton secreted lesser amounts of amino acids and soluble sugars than the WT roots in the full-nutrient solution. Deficiencies of P and K caused a large increase in the total amino acid and soluble sugar secretions of both Bt-cotton and WT, with larger increases observed in Bt-cotton. Because transferring the foreign Bt gene into cotton can result in alterations in the components of the root exudates, with the effect varying depending on the nutritional status, the cultivation of genetically modified crops, such as Bt-cotton, in soil environments should be more carefully assessed, and the possible effects as a result of the alterations in the root exudate components should be considered.

关键词： gene overexpression low-molecular-weight components nutritional status root exudates transgenic cotton

Dynamics of Soil and Grain Micronutrients as Affected by Long-Term Fertilization in an Aquic Inceptisol

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Pedosphere 2010年第6期20卷 725-735页

作者： LI Ben-Yin HUANG Shao-Min wei ming-bao H. L. ZHANG SHEN A-Lin XU Jian-ming RUAN Xin-Ling Institute of Plant Nutrition Agricultural Resources and Environmental Sciences Henan Academy of Agricultural Sciences Zhengzhou 450002 (China) College of Environment and Natural Resources Zhejiang University Hangzhou 310058 (China) Henan Provincial Key Lab of Surface and Interface Science Zhengzhou University of Light Industry Zhengzhou 450002 (China) Department of Plant and Soil Sciences Oklahoma State University Stillwater OK 74078 (USA) College of Environment and Planning Henan University Kaifeng 475000 (China)

Micronutrient status in soils can be affected by long-term fertilization and intensive cropping.A 19-year experiment (1990-2008) was carried out to investigate the influence of different fertilization regimes on micronutrients in an Aquic Inceptisol and maize and wheat grains in Zhengzhou,*** results showed that soil total Cu and Zn markedly declined after 19 years with application of N fertilizer *** total Fe and Mn were significantly increased mainly due to atmospheric *** of P and organic fertilizer with incorporation of straws resulted in dramatic increases in soil total Cu,Zn,Fe,and *** diethylenetriamine pentaacetic acid (DTPA)-extractable Cu in all treatments sharply decreased from initially 1.12 to about 0.8 mg kg -1 .The treatments with organic fertilizer had the highest soil DTPA-extractable Cu,Zn,Fe,and Mn after 19 years of cropping and fertilization,thus demonstrating the important role of organic fertilizer application in improving available micronutrient *** and Zn contents in wheat grains in the no-P treatments were significantly higher than those of the treatments with P *** addition,Fe and Mn contents in wheat grains were positively correlated with their soil DTPA-extractable *** indicated that the long-term application of organic fertilizer resulted in significant increases in soil total and available micronutrient concentrations and remarkable reduction in wheat grain Cu and Zn contents,which was due to high soil available P.

关键词： Cu organic fertilizer soil available P wheat Zn

THEORETICAL STUDY ON PHOTODECARBONYLATION REACTION OF ACROLEIN

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Chinese Chemical Letters 1993年第3期4卷 215-216页

作者： wei Hai FANG ming bao HUANG De Cai FANG Ruo Zhuang LIU Department of chemistry,Beijing Normal University,Beijing 100875

Photodecarbonylation reaction of acrolein at 193nm was investigated by ab initio molecular orbital *** result supports photodecarbonylation mechanisms proposed by Fujimoto,and predicts that the reaction should occur i... 详细信息

关键词： THEORETICAL STUDY ON PHOTODECARBONYLATION REACTION OF ACROLEIN

CuO-NiO/SnO_2光催化剂的制备、表征及产氢性能

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人工晶体学报 2012年第2期41卷 395-400页

作者：郑先君黄娟魏丽芳魏明宝郑州轻工业学院材料与化学工程学院郑州450002

采用溶胶-凝胶法制备纳米SnO2,通过浸渍法制备CuO-NiO/SnO2光催化材料,采用XRD、UV-Vis DRS、TEM及HRTEM对其结构、形貌及光吸收性能进行表征。在紫外灯照射下,以无水乙醇为电子给体,详细考察了CuO掺杂量、NiO掺杂量、乙醇浓度等对SnO2... 详细信息

采用溶胶-凝胶法制备纳米SnO2,通过浸渍法制备CuO-NiO/SnO2光催化材料,采用XRD、UV-Vis DRS、TEM及HRTEM对其结构、形貌及光吸收性能进行表征。在紫外灯照射下,以无水乙醇为电子给体,详细考察了CuO掺杂量、NiO掺杂量、乙醇浓度等对SnO2光催化产氢性能的影响。研究结果表明:5%CuO-7%NiO/SnO2的光催化产氢性能最佳,约是同条件下纯SnO2产氢性能的2.8倍;最优乙醇浓度约为1.2 mol/L。

关键词： CuO-NiO/SnO2 浸渍法光催化产氢

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杂交边界点方法求解动态断裂力学问题

岩土力学 2009年第7期30卷 2153-2157页

作者：苗雨危保明李竟成华中科技大学土木工程与力学学院武汉430074

结合杂交边界点法和双互易法则,推导出求解动力问题的纯边界类型无网格方法——双互易杂交边界点方法,并将该方法用于求解含中心裂纹的方板受瞬态载荷作用的问题。该方法将问题的解分为通解和特解两部分,通解使用杂交边界点法求解,特解... 详细信息

结合杂交边界点法和双互易法则,推导出求解动力问题的纯边界类型无网格方法——双互易杂交边界点方法,并将该方法用于求解含中心裂纹的方板受瞬态载荷作用的问题。该方法将问题的解分为通解和特解两部分,通解使用杂交边界点法求解,特解则利用局部径向基函数近似,域内布点仅仅为了径向基插值,因此仍然是一种纯边界类型的无网格方法。同时,将移动最小二乘近似中的基函数扩充,使该方法能更好地模拟裂纹尖端应力场的奇异性,具有后处理简单、精度高的优点。数值算例表明了该方法的稳定性和有效性。

关键词：杂交边界点法双互易法则动态断裂基函数扩充移动最小二乘

Role of iron ore in enhancing gasification of iron coke:Structural evolution,influence mechanism and kinetic analysis

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 58-69页

作者： Jie Wang wei Wang Xuheng Chen Junfang bao Qiuyue Hao Heng Zheng Runsheng Xu School of Chemistry and Materials Science Hubei Engineering UniversityXiaogan 432000China Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan 430081China Institue of Ironmaking Technology Baosteel Central Research InstituteShanghai 201999China State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

The utilization of iron coke provides a green pathway for low-carbon *** uncover the influence mechanism of iron ore on the behavior and kinetics of iron coke gasification,the effect of iron ore on the microstructure of iron coke was ***,a comparative study of the gasification reactions between iron coke and coke was conducted through non-isothermal thermogravimetric *** findings indicate that compared to coke,iron coke exhibits an augmentation in micropores and specific surface area,and the micropores further extend and *** provides more adsorption sites for CO_(2) molecules during the gasification process,resulting in a reduction in the initial gasification temperature of iron *** the heating rate in non-isothermal gasification can enhance the reactivity of iron *** metallic iron reduced from iron ore is embedded in the carbon matrix,reducing the orderliness of the carbon structure,which is primarily responsible for the heightened reactivity of the carbon *** kinetic study indicates that the random pore model can effectively represent the gasification process of iron coke due to its rich pore ***,as the proportion of iron ore increases,the activation energy for the carbon gasification gradually decreases,from 246.2 kJ/mol for coke to 192.5 kJ/mol for iron coke 15wt%.

关键词： low-carbon ironmaking iron coke gasification structural evolution kinetic model

Boosting Oxygen Evolution Reaction Performance on NiFe‑Based Catalysts Through d‑Orbital Hybridization

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Nano-Micro Letters 2025年第1期17卷 281-292页

作者： Xing Wang wei Pi Sheng Hu Haifeng bao Na Yao wei Luo State Key Laboratory of New Textile Materials and Advanced Processing Technology Key Laboratory of New Textile Materials and Applications of Hubei ProvinceSchool of Materials Science and EngineeringWuhan Textile UniversityWuhan 430200People’s Republic of China College of Chemistry and Molecular Sciences Wuhan UniversityWuhan 430072People’s Republic of China

Anion-exchange membrane water electrolyzers(AEMWEs)for green hydrogen production have received intensive attention due to their feasibility of using earth-abundant NiFe-based *** introducing a third metal into NiFe-based catalysts to construct asymmetrical M-NiFe units,the d-orbital and electronic structures can be adjusted,which is an important strategy to achieve sufficient oxygen evolution reaction(OER)performance in ***,the ternary NiFeM(M:La,Mo)catalysts featured with distinct M-NiFe units and varying d-orbitals are reported in this *** and theoretical calculation results reveal that the doping of La leads to optimized hybridization between d orbital in NiFeM and 2p in oxygen,resulting in enhanced adsorption strength of oxygen intermediates,and reduced rate-determining step energy barrier,which is responsible for the enhanced OER *** critically,the obtained NiFeLa catalyst only requires 1.58 V to reach 1 A cm^(−2) in an anion exchange membrane electrolyzer and demonstrates excellent long-term stability of up to 600 h.

关键词： NiFe-based catalysts d-orbital coupling Oxygen evolution reaction Anion exchange membrane electrolyzer

A low redox potential and long life organic anode material for sodium-ion batteries

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Journal of Energy Chemistry 2025年第1期100卷 557-564页

作者： Zhi Li Yang wei Kang Zhou Xin Huang Xing Zhou Jie Xu Taoyi Kong Junwei Lucas bao Xiaoli Dong Yonggang Wang Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Institute of New Energy Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) Fudan University Department of Chemistry Boston College School of Materials Science and Engineering Anhui University of Technology

Sodium-ion batteries （SIBs） with organic electrodes are an emerging research direction due to the sustainability of organic materials based on elements like C,H,O,and sodium ***,organic electrode materials for SIBs are mainly used as cathodes because of their relatively high redox potentials（>1 V）.Organic electrodes with low redox potential that can be used as anode are ***,a novel organic anode material （tetrasodium 1,4,5,8-naphthalenetetracarboxylate,Na4TDC） has been developed with low redox potential （<0.7 V） and excellent cyclic *** three-sodium storage mechanism was demonstrated with various in-situ/ex-situ spectroscopy and theoretical calculations,showing a high capacity of 208 mAh/g and an average decay rate of merely 0.022%per ***,the Na4TDC-hard carbon composite can further acquire improved capacity and cycling stability for 1200 cycles even with a high mass loading of up to 20 mg *** pairing with a thick Na3V2（PO4）3cathode (20.6 mg cm-2),the as-fabricated full cell exhibited high operating voltage （2.8 V）,excellent rate performance and cycling stability with a high capacity retention of 88.7% after 200 cycles,well highlighting the Na4TDC anode material for SIBs.

关键词： Organic anode material Low redox potential Composite anode Sodium-ion batteries

Contemporary characteristics,management,and outcomes of patients hospitalized for atrial fibrillation in China:results from the real-world study of Chinese atrial fibrillation registry

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Chinese Medical Journal 2020年第23期133卷 2883-2884页

作者： Qing-Yan Zhao Shao-Bo Shi He Huang Hong Jiang Bo Yang Gang Wu ming-wei bao Yu Liu Yan-Hong Tang Xi Wang Shu Zhang De-Jia Huang Yong Huo Jun-Bo Ge Cong-Xin Huang Department of Cardiology Renmin Hospital of Wuhan UniversityWuhanHubei 430060China Cardiovascular Research Institute of Wuhan University WuhanHubei 430060China Hubei Key Laboratory of Cardiology WuhanHubei 430060China State Key Laboratory of Cardiovascular Disease Arrhythmia CenterFuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100037China Department of Cardiology West China HospitalSichuan UniversityChengduSichuan 610000China Department of Cardiology Peking University First HospitalBeijing 100005China Department of Cardiology Shanghai Institute of Cardiovascular DiseasesZhongshan HospitalFudan UniversityShanghai 200032China

Atrial fibrillation(AF)is a growing public health problem in the context of the epidemiologic transition from communicable to non-communicable diseases,and a high prevalence of AF was found in Chinese patients who died in hospital.[1]Indeed,most understanding of AF is based on findings from clinical trials and observational studies performed in North America and Western Europe,[2]and some studies have described the characteristics of patients with AF in other *** data have highlighted the important differences in the clinical characteristics and treatment of patients with AF in these regions.[3,4]However,few studies have investigated the characteristics of patients with AF in ***,the aim of this study was to investigate the clinical demographics,management,and outcomes of patients hospitalized for AF using data from a recently registered AF-specific nationwide cohort study in China,the real-world study of Chinese atrial fibrillation(RWS-CAF)*** RWS-CAF registry(registration number:ChiCTR1900021250)comprises a multicenter,observational,prospective cohort that includes consecutive patients requiring hospitalization with a diagnosis of AF made according to the Chinese AF guidelines,spanning from November 1,2017,to October 31,*** of the enrolled hospitals are grade A class three *** patients hospitalized with AF who were aged 18 years or older were recruited.

关键词： patients fibrillation atrial