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OsNLP3 enhances grain weight and reduces grain chalkiness in rice

Plant Communications 2024年第10期5卷 82-99页

作者： Liang-Qi Sun Yu Bai Jie Wu Shi-Jun Fan Si-Yan Chen Zheng-Yi Zhang Jin-Qiu Xia Shi-Mei Wang Yu-Ping Wang Peng Qin Shi-Gui Li Ping Xu Zhong Zhao ChengBin Xiang Zi-Sheng Zhang Division of Life Sciences and Medicine Division of Molecular&Cell BiophysicsHefei National Science Center for Interdisciplinary Sciences at the MicroscaleUniversity of Science and Technology of ChinaThe Innovation Academy of Seed DesignChinese Academy of SciencesHefeiAnhui Province 230027China Experimental Center of Engineering and Materials Science University of Science and Technology of ChinaHefei 230027China Rice Research institute Anhui Academy of Agricultural ScienceHefeiChina State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China Rice Research InstituteSichuan Agricultural UniversityChengduSichuanChina Shanghai Key Laboratory of Plant Functional Genomics and Resources Shanghai Chenshan Botanical GardenShanghai Chenshan Plant Science Research CenterChinese Academy of SciencesShanghaiChina

Grain weight,a key determinant of yield in rice(Oryza sativa L.),is governed primarily by genetic factors,whereas grain chalkiness,a detriment to grain quality,is intertwined with environmental factors such as mineral ***(N)is recognized for its effect on grain chalkiness,but the underlying molecular mechanisms remain to be *** study revealed the pivotal role of rice NODULE INCEPTION-LIKE PROTEIN 3(OsNLP3)in simultaneously regulating grain weight and grain *** investigation showed that loss of OsNLP3 leads to a reduction in both grain weight and dimension,in contrast to the enhancement observed with OsNLP3 ***3 directly suppresses the expression of OsCEP6.1 and OsNF-YA8,which were identified as negative regulators associated with grain ***,two novel regulatory modules,OsNLP3-OsCEP6.1 and OsNLP3-OsNF-YA8,were identified as key players in grain weight ***,the OsNLP3-OsNF-YA8 module not only increases grain weight but also mitigates grain chalkiness in response to *** research clarifies the molecular mechanisms that orchestrate grain weight through the OsNLP3-OsCEP6.1 and OsNLP3-OsNF-YA8 modules,highlighting the pivotal role of the OsNLP3-OsNF-YA8 module in alleviating grain *** findings reveal potential targets for simultaneous enhancement of rice yield and quality.

关键词： OsNLP3 OsCEP6.1 OsNF-YA8 grain weight grain chalkiness rice Oryza sativa L.

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Stability analysis on Jinjia dam hydropower project in Chongqing City

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Global Geology 2006年第2期9卷 246-248页

作者： Fuzhi XIE Hong FENG Xiaohan YANG Jingzong YU institute of Northeast hydroelectric investigation design Changchun 130062 China

The stability analysis is one of the chief problems at hydropower *** Jinjia Hydropower Station is a significant project in Southwest *** paper adopts the rigidity limited equilibrium theory and evaluated stability of... 详细信息

关键词： stability analysis hydropower project Jinjia Hydropower Station

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Treatment design of geological defects in dam foundation of JinpingⅠhydropower station

Treatment design of geological defects in dam foundation of ...

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第13届全国岩石动力学学术会议

作者： Shengwu Song Xuemin Feng Hongling Rao Hanhuai Zheng chengdu hydroelectric investigation and design institute China Hydropower Engineering Consulting Group Corporation

Jinping I hydropower station is one of the most challenging projects in China due to its highest arch dam and complex geological conditions for *** geological investigation into the dam foundation, a few large-scale weak discontinuities are *** rock masses in the left dam foundation are intensively unloaded,approximately to the depth of *** serious geological defects lead to a geological asymmetry on the left and right banks,and thus some major difficulties of dam construction are *** this paper,the influences of geological defects on the project are analyzed,followed by the concepts and methods of treatment *** on the analysis,the treatment methods of the weak rock masses and discontinuities are carefully determined,including the concrete cushion,concrete replacement grids,and consolidation *** work together to enhance the strength and integrity of the dam *** and calibrations through geo-mechanical model tests in combination with field monitoring results in early impoundment period show that the arch dam and its foundation are roughly stable,suggesting that the treatment designs are reasonable and *** proposed treatment methods and concepts in the context can be helpful for similar complex rock projects.

关键词： Geological defects Treatment design Concrete cushion Concrete replacement grids Consolidation grouting Performance evaluation Jinping I hydropower station

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A Multiscale Reliability-Based design Optimization Method for Carbon-Fiber-Reinforced Composite Drive Shafts

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Computer Modeling in Engineering & Sciences 2024年第8期140卷 1975-1996页

作者： Huile Zhang Shikang Li Yurui Wu Pengpeng Zhi Wei Wang Zhonglai Wang Yangtze Delta Region institute(Huzhou) University of Electronic Science and Technology of ChinaHuzhou313001China Huzhou Key Laboratory of Green Energy Materials and Battery Cascade Utilization Huzhou CollegeHuzhou313000China SAIC Motor Corporation Limited Passenger Vehicle Co. Shanghai201804China School ofMechanical and Electrical Engineering University of Electronic Science and Technology of ChinaChengdu611731China

Carbon fiber composites,characterized by their high specific strength and low weight,are becoming increasingly crucial in automotive ***,current research primarily emphasizes layer count and orientation,often neglecting the potential of microstructural design,constraints in the layup process,and performance *** study,therefore,introduces a multiscale reliability-based design optimization method for carbon fiber-reinforced plastic(CFRP)drive ***,parametric modeling of the microscale cell was performed,and its elastic performance parameters were predicted using two homogenization methods,examining the impact of fluctuations in microscale cell parameters on composite material performance.A finite element model of the CFRP drive shaft was then constructed,achieving parameter transfer between microscale and macroscale through Python *** enabled an investigation into the influence of both micro and macro design parameters on the CFRP drive shaft’s *** Multi-Objective Particle Swarm Optimization(MOPSO)algorithm was enhanced for particle generation and updating strategies,facilitating the resolution of multi-objective reliability optimization problems,including composite material layup process *** studies demonstrated that this approach leads to over 30%weight reduction in CFRP drive shafts compared to metallic counterparts while satisfying reliability requirements and offering insights for the lightweight design of other vehicle components.

关键词： Multiscale reliability-based design optimization carbon-fabric-reinforced composite drive shaft

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investigation of Quantum Dot Color Filter Micro-LED Display

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Photonic Sensors 2024年第1期14卷 40-47页

作者： Xuhui PENG Yang ZENG Sitao HUO Zhenyuan YANG Xiaoping HUANG Qing ZHAO School of Resources and Environment University of Electronic Science and Technology of ChinaChengdu 611731China Yangtze Delta Region institute(Huzhou) University of Electronic Science and Technology of ChinaHuzhou 313001China Shanghai Tianma Microelectronics Shanghai 201201China

In this work,we present the investigation of the quantum dot color filter(QDCF)micro-light emitting diode(micro-LED)*** and red quantum dot photoresist(QDPR)materials are patterned into a pixelated array and precisely bonded with an all-blue micro-light emitting diode(micro-LED)substrate,forming a red,green,and blue(RGB)full color display through color conversion.A few factors that influence the achievable color gamut are further *** resulting 1.1-inch 228-pixels per inch(ppi)display demo shows the good *** findings in this paper pave a way to the future industrialization of the micro-LED display.

关键词： Quantum dot color filter(QDCF) color conversion micro-light emitting diode(micro-LED) color gamut

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Conservation genomic investigation of an endangered conifer,Thuja sutchuenensis,reveals low genetic diversity but also low genetic load

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Plant Diversity 2024年第1期46卷 78-90页

作者： Tongzhou Tao Richard IMilne Jialiang Li Heng Yang Shiyang Wang Sihan Chen Kangshan Mao Key Laboratory for Bio-Resource and Eco-Environment of Ministry of Education&Sichuan Zoige Alpine Wetland Ecosystem National Observation and Research Station College of Life ScienceSichuan UniversityChengduChina institute of Molecular Plant Science School of Biological ScienceUniversity of EdinburghEdinburgh EH93BFUK College of Science Tibet UniversityLhasa 850000Xizang Autonomous RegionPR China

Endangered species generally have small populations with low genetic diversity and a high genetic *** sutchuenensis is an endangered conifer endemic to southwestern *** was once considered extinct in the wild,but in 1999 was ***,little is known about its genetic *** collected 67 individuals from five wild,isolated *** populations,and used 636,151 SNPs to analyze the level of genetic diversity and genetic load in *** to delineate the conservation units of ***,based on whole transcriptome sequencing data,as well as target capture sequencing *** found that populations of *** could be divided into three *** groups had low levels genetic diversity and were moderately genetically *** findings also indicate that *** suffered two severe bottlenecks around the Last Glaciation Period and Last Glacial *** Thuja species,*** presented the lowest genetic load and hence might have purged deleterious mutations efficiently through purifying ***,distribution of fitness effects analysis indicated a high extinction risk for *** lines of evidence identified three management units for *** *** possesses a low genetic load,low genetic diversity,suboptimal fitness,and anthropogenic pressures all present an extinction risk for this rare *** might also hold true for many endangered plant species in the mountains all over the world.

关键词： Sichuan Arborvitae Genetic load Deleterious mutations Demographic history Conservation genomics

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FIELD investigation OF TEMPERATURE AND DO OF THE ERTAN RESERVOIR DURING OPERATION PERIOD

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Journal of Hydrodynamics 2002年第3期14卷 54-59页

作者： Jiang Hong State Key Hydraulics Laboratory of High Speed Flows, Sichuan University, chengdu 610065, ChinaXie Guang wu, Lu Hong wei chengdu Hydropower institute of design and investigation, chengdu 610072, ChinaLuo Lin State Key Hydraulics Laborato State Key Hydraulics Laboratory of High Speed Flows Sichuan University Chengdu 610065 China chengdu Hydropower institute of design and investigation Chengdu 610072 China

The Ertan hydropower station at the Yalong River of Southwest Sichuan Province. It is one of the biggest installed capacity hydropower stations in China. The main stream reservoir length reaches 145km and the branch Ganyu River reaches 40km under normal storage level. The reservoir surface covers 101km 2 area, and has 5.8 billonm 3 capacity. It began water storage since May 1998. The first generator was in operation in August 1998. The project was finished at 2000. The Ertan reservoir is a typical riverway style one. In order to understand the thermal effect, Dissolved Oxygen (DO) distribution and outlet flow temperature under reservoir storage condition, three field measurements were carried out in January, April, and July of 2000, respectively. The measured results are analyzed in the paper. The results will provide reserchers a valuable data set for calibration of mathematical model and realistic understanding for stratified flow issue and DO profiles in a large scale deep reservoir.

关键词： reservoir temperature DO field measurement

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Coupled 3D discrete-continuum numerical modeling of pile penetration in sand

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2012年第1期13卷 44-55页

作者： Jian ZHOU Qi-wei JIAN Jiao ZHANG Jian-jun GUO Department of Geotechnical Engineering Tongji University Shanghai 200092 China School of Civil Engineering and Transportation Shanghai Technical College of Urban Management Shanghai 200432 China Sichuan Provincial Chuanjian investigation and design institute Chengdu 610017 China

A coupled discrete-continuum simulation incorporating a 3D aspect and non-circular particles was performed to analyze soil-pile interactions during pile penetration in sand.A self-developed non-circular particle numerical simulation program was used which considered sand near the pile as interacted particles using a discrete element method;the sand away from the pile was simulated as a continuous medium exhibiting linear elastic *** domain analyzed was divided into two *** forces at the interface between the two zones were obtained from a discrete zone and applied to the continuum boundaries as nodal forces,while the interface velocities were obtained from the continuum zone and applied to the discrete *** show that the coupled discrete-continuum simulation can give a microscopic description of the pile penetration process without losing the discrete nature of the zone concerned,and may significantly improve computational efficiency.

关键词： Coupled numerical modeling Discrete-continuum Micro and macro 3D simulation Non-circular particles Pilepenetration mechanism

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Systematic identification of wheat spike developmental regulators by integrated multiomics, transcriptional network, GWAS, and genetic analyses

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Molecular Plant 2024年第3期17卷 438-459页

作者： Xuelei Lin Yongxin Xu Dongzhi Wang Yiman Yang Xiaoyu Zhang Xiaomin Bie Lixuan Gui Zhongxu Chen Yiliang Ding Long Mao Xueyong Zhang Fei Lu Xiansheng Zhang Cristobal Uauyo Xiangdong Fu Jun Xiao Key Laboratory of Plant Cell and Chromosome Engineering Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Nanjing Agricultural University NanjingJiangsu 210095China Key Laboratory of Crop Biology College of Life SciencesShandong Agricultural UniversityTaianShandong 271018China Department of Life Science Tcuni Inc.ChengduSichuan 610000China John Innes Centre Norwich Research ParkNorwich NR47UHUK institute of Crop Sciences Chinese Academy of Agricultural SciencesBeijing 100081China CAS-JIC Centre of Excellence for Plant and Microbial Science(CEPAMS) Institute of Genetics and Developmental BiologyCASBeijing 100101China

The spike architecture of wheat plays a crucial role in determining grain number,making it a key trait for optimization in wheat breeding *** this study,we used a multi-omic approach to analyze the transcriptome and epigenome profiles of the young spike at eight developmental stages,revealing co-ordinated changes in chromatin accessibility and H3K27me3 abundance during the flowering *** constructed a core transcriptional regulatory network(TRN)that drives wheat spike formation and experimentally validated a multi-layer regulatorymodule involving TaSPL15,TaAGLG1,and *** integrating the TRN with genome-wide association studies,we identified 227 transcription factors,including 42 with known functions and 185 with unknown *** investigation of 61 novel transcription factors using multiple homozygous mutant lines revealed 36 transcription factors that regulate spike architecture or flowering time,such as TaMYC2-A1,TaMYB30-A1,and *** particular interest,TaMYB30-A1,downstream of and repressed by WFzP,was found to regulate fertile spikelet ***,the excellent haplotype of TaMYB30-A1,which contains a C allele at the WFzP binding site,was enriched during wheat breeding improvement in China,leading to improved agronomic ***,we constructed a free and open access Wheat Spike Multi-Omic Database(http://39.***.48.156:8800/#/).Our study identifies novel and high-confidence regulators and offers an effective strategy for dissecting the genetic basis of wheat spike development,with practical value forwheat breeding.

关键词： wheat spike development epigenome TRN TaMYB30-A1 breeding selection

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Experimental investigation of submerged impinging jets in a plunge pool downstream of large dams

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Science China(Technological Sciences) 1998年第4期41卷 357-365页

作者：刘沛清高季章李永梅 China institute of Water Conservancy and hydroelectric Power Research Beijing China

Submerged impinging jets in a plunge pool downstream of large dams are experimentally investigated in details. By use of the hot\|film anemometer, the velocity field in the plunge pool produced by middle orifices of 1∶400 scale Xiluodu spillway model is measured. The diffusive characteristics and energy dissipation mechanism of the submerged impinging jet in the plunge pool are analyzed.

关键词： impinging jet plunge pool energy dissipation.

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