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Effects of Nitrogen Application Time on Caryopsis Development and Grain Quality of Rice Variety Yangdao 6

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Rice science 2008年第1期15卷 57-62页

作者： XIONG Fei WANG zhong Gu Yun-jie chen Gang ZHOU Peng Jiangsu Provincial Key Laboratory of Crop Genetics and Physiology Yangzhou University Yangzhou 225009 China

A pot experiment was conducted to study the effects of different nitrogen application time （during the tillering or the booting stages） with the same nitrogen rates on the caryopsis development and grain quality of rice variety Yangdao 6. The increased nitrogen fertilizer （urea）, especially applied during the booting stage, could evidently increase the milled rice rate, head rice rate and protein content in rice grains compared with the control （no nitrogen application）, and decrease chalky grain rate and amylose content. Moreover, the increased nitrogen fertilizer significantly affected the caryopsis development and enhanced the grain weight when nitrogen applied during the tillering and the booting stages, especially during the booting stage. During caryopsis development the increased nitrogen fertilizer applied during the tillering and booting stages could obviously decrease the total starch and amylose contents, but not obviously for the amylopectin content in rice grain. Increased topdressing of nitrogen fertilizer, especially applied during the booting stage, had significant effect on the development and structures of amyloplasts and proteinoplasts. That is, it could change the distribution, number and shape of amyloplasts and proteinoplasts in the endosperm cells especially in grain abdomen, Compared with the control the arrangements of amyloplasts and proteinoplasts were closer, with more numbers, higher density and less interspaces each ohter. Furthermore, most amyloplasts showed polyhedron under the increased nitrogen fertilizer level.

关键词： caryopsis development rice quality amylose proteinoplast amyloplast starch nitrogen fertilizer fertilizer application time

Prognostic and Predictive Factors of Early Breast Cancer

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Clinical oncology and cancer researeh 2010年第4期7卷 246-252页

作者： zhong-jie chen Mei-ying YAN Hong-qing ZHUANG Jian-lei HAO Rui-ying LI Zhi-yong YUAN Ping WANG Department of Radiotherapy Tianjin Medical University Cancer Institute & Hospital Key Laboratory of Breast Cancer Prevention and Therapy Tianjin Medical University Ministry of Education Key Laboratory of Cancer Prevention and Therapy Tianjin 300060 China. No.5 Psychiatric Department Jining psychiatric hospital Jining 272151 Shandong Province China.

OBJECTIVE To identify risk factors for relapse and death in patients with T1 to T2 breast cancer with 0-3 positive axillary lymph *** The case files of 540 breast cancer patients with T1-T2 tumors with 0-3 positive nodes were reviewed retrospectively. Ten-year locoregional recurrence （LRR）, distant recurrence （DR）, disease-free survival （DFS） and overall survival （OS） of the patients were analyzed. Univariate statistical analysis and Cox proportional hazards models were carried out with SPSS so ware *** The median follow-up of all the patients was 7.2 years. On multivariate analysis, 〉 20% positive axillary nodes was the only variable that influenced LRR adversely （hazard ratio[HR], 12.816; 95% confidence interval, 4.657-35.266, P 〈 0.001）; 〉 20% positive axillary nodes and ductal carcinoma were variables that influenced DR adversely （HR, 11.088, 95% confidence interval, 3.807-32.297, P 〈 0.001; HR, 0.390, 95% confidence interval, 0.179-0.851, P = 0.018）; 1-3 positive axillary nodes and 〉 20% positive axillary nodes were the only variables that had negative e. ect on 10-year OS （HR, 2.110, 95% confi dence interval, 1.364-3.264, P = 0.001; HR, 10.244, 95% confidence interval, 3.497-30.011, P 〈 0.001） and they were also adverse prognostic variables on 10-year DFS （HR, 1.634, 95% confidence interval, 1.171-2.279, P = 0.004; HR, 7.339, 95% confi dence interval,2.906-18.530, P 〈 0.001）.CONCLUSION Axillary lymph nodal status is the only risk factor with a signifi cant impact on 10-year LRR, DR, OS and *** with T1-T2 breast cancer with 0-3 positive lymph nodes have the LRR and DR of over 10 years, and the OS and DFS of less than 10 years, compared to patients with negative lymph *** in primary tumors is a signifi cant prognostic factor for the 10-year DR.

关键词： breast neoplasms recurrence death prognosis lymph nodes

DECOUPLED MODEL FOR FLATNESS CONTROL IN 4-H CVC COLD ROLLING MILLS

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中国有色金属学会会刊：英文版 1998年第4期8卷 185-187页

作者： zhong Jue and chen jie College of Mechanical and Electrical Engineering, Central South University of Technology, Changsha 410083, P. R. China

ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｐｒｅｃｉｓｅｃｏｎｔｒｏｌｏｆｒｏｌｇａｐｉｎ４ｈＣＶＣｍｉｌｓｉｓｐａｒｔｉｃｕｌａｒｌｙｄｉｆｉｃｕｌｔｄｕｅｔｏｔｈｅｃｏｍｐｌｅｘｉｎｔｅｒａｃｔｉｏｎｓｂｅｔｗｅｎｗｏｒｋ... 详细信息

ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｐｒｅｃｉｓｅｃｏｎｔｒｏｌｏｆｒｏｌｇａｐｉｎ４ｈＣＶＣｍｉｌｓｉｓｐａｒｔｉｃｕｌａｒｌｙｄｉｆｉｃｕｌｔｄｕｅｔｏｔｈｅｃｏｍｐｌｅｘｉｎｔｅｒａｃｔｉｏｎｓｂｅｔｗｅｎｗｏｒｋｒｏｌｓｈｉｆｔｉｎｇａｎｄｂｅｎ...

关键词： decoupled model gage and shape control cold rolling

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跨海桥梁受台风影响的风速概率模型分析

工程力学 2022年第S1期39卷 180-186页

作者：郭健钟陈杰王仁贵胡成杰浙江工业大学土木工程学院浙江杭州310023 西南交通大学土木工程学院四川成都610031 中交公路规划设计院有限公司北京100088

中国东部沿海地区常受台风侵扰,各台风不同的气旋结构和登陆位置使其对跨海桥梁结构的影响有较大差异。台风期间桥位处的风速概率模型是分析桥位风场特征、评估桥梁抗风能力重要依据。安装于跨海桥梁上的结构健康监测系统实时获取的风... 详细信息

中国东部沿海地区常受台风侵扰,各台风不同的气旋结构和登陆位置使其对跨海桥梁结构的影响有较大差异。台风期间桥位处的风速概率模型是分析桥位风场特征、评估桥梁抗风能力重要依据。安装于跨海桥梁上的结构健康监测系统实时获取的风场监测数据为了解台风期间桥位风场特征和开展风速概率模型分析提供了数据基础。以影响西堠门大桥的三个典型台风为研究对象,结合桥位风场实时监测数据,采用贝叶斯方法对风速概率模型参数进行动态识别与持续更新,建立的风速概率分布时变模型能够呈现不同时刻的风速概率分布及其在台风全过程中的演变规律,并对三个台风的风速分布及其演变进行了对比分析。对于近侧的登陆风,桥址风场的风速分布具有较大波动性;而对于远端风场,台风影响半径范围内风速分布相对稳定,影响半径范围外则风速分布波动强烈。

关键词：跨海大桥结构健康监测系统台风风场贝叶斯参数更新风速概率时变模型

Dynamic behaviors of graphene platelets-reinforced metal foam piezoelectric beams with velocity feedback control

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 63-80页

作者： jie chen Xinyue ZHANG Mingyang FAN School of Mathematics Statistics and Mechanics Beijing University of Technology College of Mechanical & Energy Engineering Beijing University of Technology

Graphene platelets(GPLs)-reinforced metal foam structures enhance the mechanical properties while maintaining the lightweight characteristics of metal foams. Further bonding piezoelectric actuator and sensor layers on the surfaces of GPLs-reinforced metal foam beams enables active vibration control, greatly expanding their applications in the aerospace industry. For the first time, this paper investigates the vibration characteristics and active vibration control of GPLs-reinforced metal foam beams with surfacebonded piezoelectric layers. The constant velocity feedback scheme is used to design the closed-loop controller including piezoelectric actuators and sensors. The effects of the GPLs on the linear and nonlinear free vibrations of the beams are numerically *** Newmark-β method combined with Newton's iteration technique is used to calculate the nonlinear responses of the beams under different load forms including harmonic loads,impact loads, and moving loads. Additionally, special attention is given to the vibration reduction performance of the velocity feedback control on the responses of the beam.

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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

Ru doping triggering reconstruction of cobalt phosphide for coupling glycerol electrooxidation with seawater electrolysis

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Journal of Energy Chemistry 2025年第1期100卷 317-326页

作者： Binglu Deng jie Shen Jinxing Lu Chuqiang Huang Zhuoyuan chen Feng Peng Yunpeng Liu School of Materials Science and Hydrogen Energy Foshan University School of Chemistry and Chemical Engineering Guangzhou University Guangdong Key Laboratory for Hydrogen Energy Technologies

Seawater electrolysis is a promising approach for sustainable energy without relying on precious ***,the large-scale seawater electrolysis is hindered by low catalytic efficiency and severe anode corrosion caused by the harmful *** contrast to the oxygen evolution reaction （OER）and chlorin ion oxidation reaction （ClOR）,glycerol oxidation reaction （GOR） is more thermodynamically and kinetically favorable ***,a Ru doping cobalt phosphide （Ru-CoP2） is proposed as a robust bifunctional electrocatalyst for seawater electrolysis and GOR,for the concurrent productions of hydrogen and value-added *** in situ and ex situ characterization analyses demonstrated that Ru doping featured in the dynamic reconstruction process from Ru-CoP2to Ru-CoOOH,accounting for the superior GOR *** coupling GOR with hydrogen evolution was realized by employing Ru-CoP2as both anode and cathode,requiring only a low voltage of 1.43 V at 100 mA cm-2,which was 250 m V lower than that in alkaline *** work guides the design of bifunctional electrocatalysts for energy-efficient seawater electrolysis coupled with biomass resource upcycling.

关键词： Glycerol electrooxidation Hydrogen evolution Ru doping Cobalt phosphide Bifunctional electrocatalysts

CRYSTAL STRUCTURE OF THE COMPLEX OF MUNG BEAN TRYPSIN INHIBITOR LYSINE ACTIVE FRAGMENT WITH BOVINE TRYPSIN AT 1.8 A RESOLUTION

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Chinese Chemical Letters 1990年第1期1卷 61-64页

作者： You Qi TANG Gen Pei LI zhong Guo chen jie ZENG(Institute of Physical Chemistry,Peking University,Beijing 100871)Tien Chin TSAO Guang Da LIN Rong Guang ZHANG Zheng Wu CHI(Institute of Biochemistry,Academic Sinica,Shanghai 200031)

The structure of the complex of mung bean trypsin inhibitor lysine active fragment with bovine trypsin has been determined at a resolution of 1.8 A by A-ray crystallographic analysis and the complex model refined by restrained least-squares minimization with the data between 10 and 1.8 *** current conventional R factor is 17.3%,and the model con- tains 1648 protein atoms,219 inhibitor atoms and 126 water *** most prominent feature of the inhibitor fragment is that it does not contain any *** of the chain fold in an irregular *** seven residues of the binding segment of the inhibitor lysine active frag- ment are in specific contact with bovine *** binding interaction and geometry around the reactive site are similar to that observed in other studies of trypsin-inhibitor complexes.

关键词： maps CRYSTAL STRUCTURE OF THE COMPLEX OF MUNG BEAN TRYPSIN INHIBITOR LYSINE ACTIVE FRAGMENT WITH BOVINE TRYPSIN AT 1.8 A RESOLUTION AT

Increased excitatory amino acid transporter 2 levels in basolateral amygdala astrocytes mediate chronic stress–induced anxiety-like behavior

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Neural Regeneration Research 2025年第6期20卷 1721-1734页

作者： Xirong Xu Shoumin Xuan Shuai chen Dan Liu Qian Xiao jie Tu Shenzhen Key Laboratory of Neuroimmunomodulation for Neurological Diseases Shenzhen-Hong Kong Institute of Brain ScienceShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong ProvinceChina CAS Key Laboratory of Brain Connectome and Manipulation Brain Cognition and Brain Disease Institute(BCBDI)Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong ProvinceChina Guangdong Provincial Key Laboratory of Brain Connectome and Behavior the Brain Cognition and Brain Disease Institute(BCBDI)Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong ProvinceChina University of Chinese of Academy of Sciences BeijingChina Faculty of Life and Health Sciences Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong ProvinceChina

The conventional perception of astrocytes as mere supportive cells within the brain has recently been called into question by empirical evidence, which has revealed their active involvement in regulating brain function and encoding behaviors associated with ***, astrocytes in the basolateral amygdala have been found to play a role in the modulation of anxiety-like behaviors triggered by chronic stress. Nevertheless, the precise molecular mechanisms by which basolateral amygdala astrocytes regulate chronic stress–induced anxiety-like behaviors remain to be fully elucidated. In this study, we found that in a mouse model of anxiety triggered by unpredictable chronic mild stress, the expression of excitatory amino acid transporter 2 was upregulated in the basolateral amygdala. Interestingly, our findings indicate that the targeted knockdown of excitatory amino acid transporter 2 specifically within the basolateral amygdala astrocytes was able to rescue the anxiety-like behavior in mice subjected to stress. Furthermore, we found that the overexpression of excitatory amino acid transporter 2 in the basolateral amygdala, whether achieved through intracranial administration of excitatory amino acid transporter 2agonists or through injection of excitatory amino acid transporter 2-overexpressing viruses with GfaABC1D promoters, evoked anxiety-like behavior in mice. Our single-nucleus RNA sequencing analysis further confirmed that chronic stress induced an upregulation of excitatory amino acid transporter 2 specifically in astrocytes in the basolateral amygdala. Moreover, through in vivo calcium signal recordings, we found that the frequency of calcium activity in the basolateral amygdala of mice subjected to chronic stress was higher compared with normal *** knocking down the expression of excitatory amino acid transporter 2 in the basolateral amygdala, the frequency of calcium activity was not significantly increased, and anxiety-like behavior was ob

关键词： anxiety astrocytes basolateral amygdala behavior dihydrokainic acid excitatory amino acid transporter 2 fiber photometry glutamate LDN-212320 transporter