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Growth of Kentucky Bluegrass as Influenced by Nitrogen and Trinexapacethyl

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Agricultural Sciences in China 2009年第12期8卷 1498-1502页

作者： wang Xiao-ying HU Tian-ming wang quan-zhen TIAN Li-min ZHANG Xiao-ling TIAN Kai College of Animal Science and Technology Northwest A&F University Yangling 712100 PR.China Tangshan Teacher's College Tangshan 063000 P.R. China Tangshan Nanhu International Golf Club Tangshan 063000 P.R.China

The experiment aimed to evaluate the effects of N and trinexapac-ethyl （TE） to the growth of Kentucky bluegrass. By using the method of randomized blocks design, 4 N levels, 0 （N1）, 20 （N2）, 25 （N3）, and 30 （N4） kg N ha t mon% with TE at 0 （T1）, 312.5 （T2） and 625 （T3） mL ha-1 every 10 d effect on the total height, clippings and chlorophyll concentration of Kentucky bluegrass were evaluated. Results showed that total height and total clippings of Kentucky bluegrass were reduced by treating with TE and increased by treating with N. Kentucky bluegrass treated with 312.5 and 625 mL ha ＇ per 10 d had total clippings and total height reduced 30 and 45% under different N application level. The N × TE interaction was significant for the chlorophyll concentration of Kentucky bluegrass. The chlorophyll concentration of Kentucky bluegrass treated with TE at 625 mL ha-1 every 10 d was significantly higher than that of Kentucky bluegrass treated with 312.5 mL ha-1 every 10 d at the same N level. The chlorophyll concentration of turfgrass treated with TE at 625 mL ha-1 every 10 d receiving 30 kg N ha -1 month-1 was the highest. Based on the index of turf growth and the chlorophyll concentration, turfgrass receiving 20 or 30 kg N ha-1 month-1 with 625 mL TE ha i every 10 d could balance the problem of mowing frequency and growth quickly while keeping a good quality.

关键词： N fertilizer trinexapac-ethyl Kentucky bluegrass

Prediction and optimization of flue pressure in sintering process based on SHAP

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 346-359页

作者： Mingyu wang Jue Tang Mansheng Chu quan Shi zhen Zhang School of Metallurgy Northeastern UniversityShenyang 110819China Liaoning Low-Carbon Steelmaking Technology Engineering Research Center Northeastern UniversityShenyang 110819China Engineering Research Center of Frontier Technologies for Low-Carbon Steelmaking(Ministry of Education) Shenyang 110819China

Sinter is the core raw material for blast *** pressure,which is an important state parameter,affects sinter *** this paper,flue pressure prediction and optimization were studied based on the shapley additive explanation(SHAP)to predict the flue pressure and take targeted adjustment ***,the sintering process data were collected and processed.A flue pressure prediction model was then constructed after comparing different feature selection methods and model algorithms using SHAP+extremely random-ized trees(ET).The prediction accuracy of the model within the error range of±0.25 kPa was 92.63%.SHAP analysis was employed to improve the interpretability of the prediction *** effects of various sintering operation parameters on flue pressure,the relation-ship between the numerical range of key operation parameters and flue pressure,the effect of operation parameter combinations on flue pressure,and the prediction process of the flue pressure prediction model on a single sample were analyzed.A flue pressure optimization module was also constructed and analyzed when the prediction satisfied the judgment *** operating parameter combination was then *** flue pressure was increased by 5.87%during the verification process,achieving a good optimization effect.

关键词： sintering process flue pressure shapley additive explanation prediction optimization

Detection of quantitative trait loci(QTL)associated with spring regrowth in alfalfa(Medicago sativa L.)

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Journal of Integrative Agriculture 2022年第3期21卷 812-818页

作者： JIANG Xue-qian ZHANG Fan wang zhen LONG Rui-cai LI Ming-na HE Fei YANG Xi-jiang YANG Chang-fu JIANG Xu YANG Qing-chuan wang quan-zhen KANG Jun-mei Institute of Animal Science Chinese Academy of Agricultural SciencesBeijing 100193P.R.China College of Grassland Agriculture Northwest A&F UniversityYangling 712100P.R.China

Spring regrowth is an important trait for perennial plants including alfalfa,the most cultivated forage legume ***,the genetic and genomic basis of the trait is largely unknown in alfalfa due to its complex genetic background of the tetroploid *** objective of this study was to identify quantitative trait loci(QTLs)associated with spring regrowth using high-resolution genetic linkage maps we constructed *** total,36 significant additive effect QTLs for the trait were *** them,10 QTLs individually explained more than 10%of the phenotypic variation(PVE)with four in P1 and six in *** overlapped QTLs intervals were detected with two and four intervals distributed in P1 and P2,*** P1,both overlapped genomic regions were located on homolog 7 *** P2,the four QTLs with PVE>10%were co-localized on homolog 6 ***,six pairs of significant epistatic QTLs were identified in *** of potential candidate genes associated with four overlapped QTLs(q CP2019-8,q LF2019-5,q LF2020-4,and q BLUP-3)narrowed down one candidate annotated as *** Arabidopsis homolog gene has been reported to play an important role in plant ***,the detected QTLs are valuable resources for genetic improvement of alfalfa spring vigor using marker-assisted selection(MAS),and further identification of the associated genes would provide insights into genetic control of spring regrowth in alfalfa.

关键词： alfalfa GBS genetic map QTL spring regrowth

Medial plica after reconstruction of anterior cruciate ligament

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Chinese Medical Journal 2009年第7期122卷 818-822页

作者： YIN Yu wang Jian-quan HE zhen-ming Institute of Sports-Medicine Peking University Third HospitalBeijing 100191 China

Background The medial plica may be caused by direct trauma or joint degeneration, which also could be iatrogenic. There have been few reports in the literature discussing incidence of the medial plica caused by an operation on the knee joint, specifically after the reconstruction of anterior cruciate ligament （ACL）. In this study, we aimed to evaluate and analyze the relationship between the incidence of the medial plica and reconstruction of the ACL. Methods A retrospective case series study was conducted to review the findings of 1085 patients between 2003 and 2007, who underwent second-look arthroscopy after reconstruction of the ACL （between 2002 and 2006）. The correlation of the incidence of medial plica with the stability of the knee joint, the time from onset of injury to reconstruction surgery, the associated injuries, and the rate of progress during postoperative rehabilitation were analyzed. Results We found that 722 patients had the structure of a medial plica. The incidence after reconstruction of the anterior cruciate ligament （66.5%） was significantly higher than usually reported. All these medial plica had avascular fibrotic and thickened edges. An excision of pathologic medial plica and fat pad synovial fringes were done. The incidences were significantly different between the two groups with their reconstruction operation time, from onset of injury to surgery （less than one month or over 2 years）, and the progress rate of postoperative rehabilitation （knee flexion could not be over 90~ in four weeks）. The incidence was not different between the groups with knee stable conditions. Conclusions Medial plica is more common in patients after reconstruction of ACL. More associated injuries and more rehabilitation difficulties can increase the medial plica incidence.

关键词： anterior cruciate ligament medial plica knee cartilage

A promising approach for quantifying focal stroke modeling and assessing stroke progression:optical resolution photoacoustic microscopy photothrombosis

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Neural Regeneration Research 2025年第7期20卷 2029-2037页

作者： Xiao Liang Xingping quan Xiaorui Geng Yujing Huang Yonghua Zhao Lei Xi zhen Yuan Ping wang Bin Liu Faculty of Health Sciences University of MacaoMacao Special Administrative RegionChina Center for Cognitive and Brain Sciences University of MacaoMacao Special Administrative RegionChina Department of Biomedical Engineering Southern University of Science and TechnologyShenzhenGuangdong ProvinceChina State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical SciencesUniversity of MacaoTaipaMacao Special Administrative RegionChina Department of Emergency Zhujiang HospitalSouthern Medical UniversityGuangzhouGuangdong ProvinceChina

To investigate the mechanisms underlying the onset and progression of ischemic stroke,some methods have been proposed that can simultaneously monitor and create embolisms in the animal cerebral ***,these methods often require complex systems and the effect of age on cerebral embolism has not been adequately studied,although ischemic stroke is strongly *** this study,we propose an optical-resolution photoacoustic microscopy-based visualized photothrombosis methodology to create and monitor ischemic stroke in mice simultaneously using a 532 nm pulsed *** observed the molding process in mice of different ages and presented age-dependent vascular embolism ***,we integrated optical coherence tomography angiography to investigate age-associated trends in cerebrovascular variability following a *** imaging data and quantitative analyses underscore the differential cerebrovascular responses to stroke in mice of different ages,thereby highlighting the technique's potential for evaluating cerebrovascular health and unraveling age-related mechanisms involved in ischemic strokes.

关键词： age-dependent cerebral cortex ischemic stroke mouse model optical coherence tomography angiography photoacoustic microscopy photothrombosis vascular imaging

Dual modulation of homogeneous nanomaterialization and electrochemical activation enhancing zinc ion storage

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Science China Chemistry 2025年第1期68卷 385-393页

作者： Jianwei wang Huan wang Kangning wang Wenhui wang Wenlin Zhang Yanzhong zhen School of Chemistry & Chemical Engineering Yan'an University

Vanadium-based electrode materials are widely investigated,but the low specific capacity and slow electrochemical kinetics in aqueous zinc-ion batteries still limit their commercial ***,the VS2/Ca V4O9material with the morphology of nanoflower was synthesized by a one-step hydrothermal *** to the blocky structure of pure VS2material,the VS2/Ca V4O9material is composed of thinner homogeneous *** open structures could provide abundant electrochemical active sites and ion transport channels,and then promote the electrochemical reaction *** addition,they can also buffer the bulk strain during the reaction *** improve the utilization of vanadium elements,an in-situ electrochemical activation strategy is used to explore the storage performance of the VS2/Ca V4O9material,the different activation voltage range of 0.4–1.6 and 0.4–1.4 V are selected,*** with the longer activation plateau of activated-VS2,the VS2/Ca V4O9cathode could quickly reach the activation state in the range of 1.4–1.6 V and cause the release of additional Zn storage sites *** VS2/Ca V4O9cathode delivers a higher power density of 37,000 W kg-1and a significant energy density of 423 Wh *** the high current density of 15 A g-1,the VS2/Ca V4O9cathode still has a discharge capacity of 183.9m Ah g-1after 5,000 cycles,and the capacity decay rate per cycle is only 0.0042%.Continuous cyclic voltammetry （CV） curves,electrochemical impedance spectroscopy （EIS） measurements,density functional theory （DFT） calculation and galvanostatic intermittent titration technique （GITT） measurements demonstrate that the VS2/Ca V4O9cathode has a faster ion diffusion/charge transfer ***,the assembled flexible device has an excellent mechanical stability.

关键词： dual modulation homogeneous nanomaterialization electrochemical activation zinc ion storage

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区域教育改进:理论与发展模型

清华大学教育研究 2012年第4期33卷 59-64页

作者：王振权清华大学教育研究院北京100084

立足当代区域教育改进实践,基于发展理论,从经济社会发展背景与教育发展基本趋势的宏观视野出发,就我国区域教育改进的形态、阶段、路径演进、驱动力及目标的实现方式等建立基于规律性认识的基本发展方式模型;探求区域教育改进发生、发... 详细信息

立足当代区域教育改进实践,基于发展理论,从经济社会发展背景与教育发展基本趋势的宏观视野出发,就我国区域教育改进的形态、阶段、路径演进、驱动力及目标的实现方式等建立基于规律性认识的基本发展方式模型;探求区域教育改进发生、发展的适应性、创新性、可持续性的原理性依据,从而作为区域教育实验的一般性理论假设,构成区域教育发展方式选择的原理之基,支撑区域教育设计与改进路径的基本判断。

关键词：区域教育教育改进发展模型

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对演员表演与观众接收关系的若干思考

河南大学学报（社会科学版） 2005年第4期45卷 171-176页

作者：汪荃珍河南省豫剧三团河南郑州450000

在探讨演员表演与观众接收的关系问题时,演员扮演的角色与观众的注意中心的关系、观众观赏戏剧时的情感状态与演员的情感传达的关系、观众获得美感与演员表演艺术分寸把握的关系是很值得研究的三个问题。

关键词：戏剧演员表演观众接收关系

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中国进出口贸易结构变化

系统工程理论与实践 2009年第2期29卷 10-17页

作者：王振全田延宾汪寿阳北京石油化工学院经济管理学院北京102617 北京化工大学经济管理学院北京100029 中国科学院数学与系统科学研究院北京100190

我国进出口贸易经历了1994年汇率体制并轨至2001年加入WTO等重大事件,发生结构变化的可能性较大.本文构造断点内生的检验模型并通过仿真产生检验统计量的临界值,检验1981至2006年中国进出口贸易额月度数据序列结构变化、讨论国际贸易环... 详细信息

我国进出口贸易经历了1994年汇率体制并轨至2001年加入WTO等重大事件,发生结构变化的可能性较大.本文构造断点内生的检验模型并通过仿真产生检验统计量的临界值,检验1981至2006年中国进出口贸易额月度数据序列结构变化、讨论国际贸易环境和贸易政策变化对我国进出口贸易额的影响.结果表明,改革开放以来我国进口序列并没有发现结构断点;出口额序列是分断趋势平稳的,比较集中的结构变化断点发生在2001年中期,其它断点分别发生在1994年2月、96年7月和97年11月;它们与相关的重大事件对应.结果说明我国出口贸易是由国际贸易环境决定的内生增长过程;而贸易政策对进口贸易有持续性影响,即进口贸易是外生增长过程.

关键词：数据诊断单位根检验结构变化内生断点