检索结果-内蒙古大学图书馆

Epigenetics in the modern era of crop improvements

Science China Life Sciences 2025年第6期 1570-1609页

作者： Yan Xue Xiaofeng Cao Xiangsong Chen Xian Deng Xing Wang Deng Yong Ding Aiwu Dong Cheng-Guo Duan Xiaofeng Fang Lei Gong Zhizhong Gong Xiaofeng Gu Chongsheng He Hang He Shengbo He Xin-Jian He Yan He Yuehui He Guifang Jia Danhua Jiang Jianjun Jiang Jinsheng Lai Zhaobo Lang Chenlong Li Qing Li Xingwang Li Bao Liu Bing Liu Xiao Luo Yijun Qi Weiqiang Qian Guodong Ren Qingxin Song Xianwei Song Zhixi Tian Jia-Wei Wang Yuan Wang Liang Wu Zhe Wu Rui Xia Jun Xiao Lin Xu Zheng-Yi Xu Wenhao Yan Hongchun Yang Jixian Zhai Yijing Zhang Yusheng Zhao Xuehua Zhong Dao-Xiu Zhou Ming Zhou Yue Zhou Bo Zhu Jian-Kang Zhu Qikun Liu State Key Laboratory of Wheat Improvement Peking University Institute of Advanced Agricultural Sciences Shandong Laboratory of Advanced Agricultural Sciences in Weifang State Key Laboratory of Plant Genomics and National Center for Plant Gene Research Institute of Genetics and Developmental Biology Chinese Academy of Sciences State Key Laboratory of Hybrid Rice College of Life Sciences Wuhan University School of Life Sciences Division of Life Sciences and Medicine University of Science and Technology of China State Key Laboratory of Genetic Engineering Collaborative Innovation Center of Genetics and Development Department of Biochemistry and Biophysics Institute of Plant Biology School of Life Sciences Fudan University Key Laboratory of Plant Design National Key Laboratory of Plant Molecular Genetics Shanghai Center for Plant Stress Biology CAS Center for Excellence in Molecular Plant Sciences Chinese Academy of Sciences Center for Plant Biology School of Life Sciences Tsinghua University Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE) Northeast Normal University State Key Laboratory of Plant Environmental Resilience Frontiers Science Center for Molecular Design Breeding College of Biological Sciences China Agricultural University College of Life Sciences Institute of Life Science and Green Development Hebei University Biotechnology Research Institute Chinese Academy of Agricultural Sciences College of Biology Hunan Key Laboratory of Plant Functional Genomics and Developmental Regulation Hunan Engineering and Technology Research Center of Hybrid Rapeseed Hunan University Institute of Advanced Agricultural Sciences School of Advanced Agricultural Sciences Peking University State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources Guangdong Laboratory for Lingnan Modern Agriculture South China Agricultural University National Institute of Biological Sciences Key Laboratory of Seed Innovation Institute of Genetics and Developme

Epigenetic mechanisms are integral to plant growth, development, and adaptation to environmental stimuli. Over the past two decades, our comprehension of these complex regulatory processes has expanded remarkably, producing a substantial body of knowledge on both locus-specific mechanisms and genome-wide regulatory patterns. Studies initially grounded in the model plant Arabidopsis have been broadened to encompass a diverse array of crop species, revealing the multifaceted roles of epigenetics in physiological and agronomic traits. With recent technological advancements, epigenetic regulations at the single-cell level and at the large-scale population level are emerging as new focuses. This review offers an in-depth synthesis of the diverse epigenetic regulations, detailing the catalytic machinery and regulatory functions. It delves into the intricate interplay among various epigenetic elements and their collective influence on the modulation of crop traits. Furthermore, it examines recent breakthroughs in technologies for epigenetic modifications and their integration into strategies for crop improvement. The review underscores the transformative potential of epigenetic strategies in bolstering crop performance, advocating for the development of efficient tools to fully exploit the agricultural benefits of epigenetic insights.

关键词：

来源：评论

学校读者我要写书评

暂无评论

A Novel Fault Diagnosis Method for Rolling Bearing Based on TVFEMD Energy Entropy and PFA-LSSVM Optimization Model

A Novel Fault Diagnosis Method for Rolling Bearing Based on ...

引用

Signal Processing, Communications and Engineering Management Conference (ISPCEM), International

作者： Zhiping Hu Yanhe Xu Junze Lu Wei Jiang Hubei Bailianhe Pumped Storage Co. Ltd Huanggang China Hubei Provincial Key Laboratory of Digital Watershed Science and Technology Huazhong University of Science and Technology Wuhan China Jiangsu Key Laboratory of Advanced Manufacturing Technology Huaiyin Institute of Technology Huai'an China

The precision and effectiveness of diagnostic outcomes for rolling bearing faults are crucial for ensuring the reliability and safety of machinery. On the premise of this background, a time-varying filtering based empirical mode decomposition (TVFEMD) energy entropy and pathfinder algorithm (PFA) optimized least squares support vector machine (LSSVM) fault diagnosis method is proposed. Firstly, considering the significant fluctuations that vibration signals exhibit in complex operating conditions, TVFEMD is used to acquire several sets of IMFs. Secondly, to extract crucial information from IMF components that describes the state of the equipment, the energy entropy method can be served to construct the feature vectors that characterize essential fault information. Finally, based on the generated vectors and PFA-LSSVM, the fault classification can be implemented. Relevant experiments are systematically undertaken to elucidate the performance characteristics. The results conspicuously affirm the method's effectiveness and superiority in comparison of the existing approaches.

关键词：

来源：评论

学校读者我要写书评

暂无评论

A Remotely Driven Finger Rehabilitation robot for Passive and Active Rehabilitation 12

A Remotely Driven Finger Rehabilitation Robot for Passive an...

引用

12th International Conference on CYBER technology in Automation, Control, and Intelligent Systems, CYBER 2022

作者： Wang, Hongbo Du, Jiazheng Zhang, Yongshun Tian, Yu Zhang, Dagan Ning, Yuansheng Niu, Jianye Hebei Provincial Key Laboratory of Parallel Robot and Mechatronic System Yanshan University Qinhuangdao066004 China Academy for Engineering and Technolgy Fudan University Shanghai200433 China Shanghai Clinical Research Center for Aging and Medicine Shanghai200040 China Yanshan University Key Laboratory of Advanced Forging and Stamping Technology Science of Ministry of Education Qinhuangdao066004 China

ISBN: (数字)9781665472678

ISBN: (纸本)9781665472678

In this paper, a finger rehabilitation robot with flexion/extension function is developed. This device consists of a four-finger mechanism and a thumb mechanism. The four-finger mechanism is modular designed, and consists of the metacarpophalangeal joint mechanism and the proximal interphalangeal joint mechanism. The thumb mechanism has an active degree of freedom (DoF). The hardware system and software system of the finger rehabilitation robot were built, and preliminary experiments were carried out, including the passive and active movement of the single joint and the multi-finger movement. The results show the range of motion of this robot can meet the requirements of the rehabilitation, and it is able to carry out active rehabilitation training by means of the human-machine contact force, and it has the ability to realize occupational therapy training for grasping objects in different shapes. © 2022 IEEE.

关键词： Degrees of freedom (mechanics)

来源：评论

学校读者我要写书评

暂无评论

Asymmetric Growth of Cu6sn5 Intermetallic Compound in Cu/Sn/Cu Interconnection System Under the Vertical Ultrasonic Vibration

SSRN

引用

SSRN 2023年

作者： Niu, Hongwei W. Bian, Hong Liu, Xiao Song, X.G. Zhao, H.Y. School of Materials Engineering Jiangsu University of Technology Changzhou213000 China State Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin150001 China Shandong Provincial Key Laboratory of Special Welding Technology Harbin Institute of Technology at Weihai Weihai264209 China

The asymmetric growth of Cu6Sn5 intermetallic compound (IMC) in a Cu/Sn/Cu interconnection system was studied during the transient liquid phase (TLP) soldering process with the assistance of the vertical ultrasonic vibration. Being different from the symmetrical growth during isothermal aging without ultrasonic waves (USW), highly asymmetrical growth of Cu6Sn5 at the upper and down Sn/Cu interfaces was observed with the vertical USW, i.e., Cu6Sn5 grains exhibited scallop-type morphology, and were discrete at the upper Sn/Cu interface (the side of ultrasonic action);while that at the lower Sn/Cu interface (the opposite side of ultrasonic action) exhibited column-type morphology, and were conterminous. Under the assistance of USW, the Cu6Sn5 grains were remarkably refined, the shear strength of joint was increased, and the fracture mode was changed from transgranular fracture to transgranular and intergranular fracture. This anomalous behaviour can be completely ascribed to the asymmetrical ultrasonic effects across the entire Sn the intermediate layer of Sn. © 2023, The Authors. All rights reserved.

关键词： Intermetallics

来源：评论

学校读者我要写书评

暂无评论

Design of an ergonomic App for entire rapid body assessment based on Mask RCNN 3

Design of an ergonomic App for entire rapid body assessment ...

引用

3rd International Conference on Mechanical, Electric and Industrial Engineering, MEIE 2020

作者： Wu, Shuai Chen, Ziwen Zhao, Xinqiao Yao, Maoyun Wang, Zihao Kuang, Shaolong School of Mechanical and Electrical Engineering Suzhou University Suzhou China Jiangsu Provincial Key Laboratory of Advanced Robot Technology Suzhou University Jiangsu China

The rapid entire body assessment (REBA) is a rapid and semi-quantitative ergonomic assessment method for those who engaged in manual handling and/or standing work for a long time. In order to provide a self-assessment tool for operators, an App software based on Mask RCNN is proposed in this paper. The software is developed by adopting the architecture of a mobile terminal App combined with an imaging processing server. The main functions of the App are video capturing of work process, the operation of the process of REBA, human-machine interaction, etc., while the server is work for processing the video imaging transmitted from the App, key-points extraction of worker's body from the images for work posture identification. One thousand working scene photos marked by VIA are used for training and testing based on the Microsoft COCO dataset to obtain a reliable target detection model. Experiment of container handling scene shows that the App evaluation software has achieved higher evaluation efficiency and accuracy. The validation of this method has been proved compared with manual evaluation based on REBA. And other work posture evaluation methods will be developed in the future to form an ergonomic evaluation software system. © 2020 Published under licence by IOP Publishing Ltd.

关键词： Application programs

来源：评论

学校读者我要写书评

暂无评论

Water Molecule-Triggered Anisotropic Deformation of Carbon Nitride Nanoribbons Enabling Contactless Respiratory Inspection

引用

CCS Chemistry 2021年第6期3卷 1615-1625页

作者： Yuye Zhang Yongxiu Song Yanfei Shen Kaiyang Chen Qing Zhou Yanqin Lv Hong Yang Ensheng Xu Songqin Liu Lei Liu Yuanjian Zhang Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device Jiangsu Provincial Hi-Tech Key Laboratory for Biomedical ResearchSchool of Chemistry and Chemical EngineeringMedical SchoolSoutheast UniversityNanjing 211189 Institute for Advanced Materials School of Material Science and TechnologyJiangsu UniversityZhenjiang 212013

The exploitation of the interaction between nanostructured matter and small molecules,such as H_(2)O at interfaces via dynamic hydrogen bonding,is essentially the key for smart,responsive nanodevices but remains ***,the authors report that the carbon nitride nanoribbons(CNNRs)with an anisotropic intraplanar and interplanar molecular arrangement underwent a deformation by H_(2)O *** experiments of bulk samples and single nanoribbons disclosed that the reversible formation of a hydrogen-bonded H_(2)O adsorption layer was the source of the CNNRs deformation,reminiscent of the hydration-triggered twist of natural bean pods in ***,CNNRs had a more balanced H_(2)O affinity,enabling a superior response and recovery *** coupling with carbon nanotubes,the authors also converted the deformation of CNNRs into more straightforward electrical readouts with record-fast response *** applied to capture fluctuations in humidity in real-time respiration,a higher detection sensitivity was obtained in a contactless mode,which compared favorably with the clinical breath-testing *** the carbon nitride family with various C/N ratios,surface properties,and topography,this finding that CNNRs are an outstanding H_(2)O transducer would significantly pave the way for the H_(2)O-triggered smart devices in broad prospective applications.

关键词： polymeric carbon nitride anisotropic deformation surface properties water molecules transducer contactless respiratory monitoring

来源：评论

学校读者我要写书评

暂无评论

Highly efficient nonuniform finite difference method for three-dimensional electrically stimulated liquid crystal photonic devices

引用

Photonics Research 2024年第4期12卷 865-875页

作者： ZHENGHAO GUO MENGJUN LIU ZIJIA CHEN RUIZHI YANG PEIYUN LI HAIXIA DA DONG YUAN GUOFU ZHOU LINGLING SHUI HUAPENG YE Guangdong Provincial Key Laboratory of Optical Information Materials and Technology&Institute of Electronic Paper Displays South China Academy of Advanced OptoelectronicsSouth China Normal UniversityGuangzhou 510006China SCNU-TUE Joint Lab of Device Integrated Responsive Materials(DIRM) National Center for International Research on Green OptoelectronicsSouth China Normal UniversityGuangzhou 510006China Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices School of Information and Optoelectronic Science and EngineeringSouth China Normal UniversityGuangzhou 510006China Joint Laboratory of Optofluidic Technology and Systems National Center for International Research on Green OptoelectronicsSouth China Academy of Advanced OptoelectronicsSouth China Normal UniversityGuangzhou 510006China College of Electronic and Optical Engineering&College of Microelectronics Nanjing University of Posts and TelecommunicationsNanjing 210046China Key Laboratory of Radio Frequency and Micro-Nano Electronics of Jiangsu Province Nanjing 210023China

Liquid crystal(LC)photonic devices have attracted intensive attention in recent decades,due to the merits of tunability,cost-effectiveness,and high ***,the precise and efficient simulation of large-scale three-dimensional electrically stimulated LC photonic devices remains challenging and resource *** we report a straightforward nonuniform finite difference method(NFDM)for efficiently simulating largescale LC photonic devices by employing a spatially nonuniform mesh grid.

关键词： nonuniform crystal finite

来源：评论

学校读者我要写书评

暂无评论

Characteristics of intracellular polyphosphate granules and phosphorus-absorption of a marine polyphosphateaccumulating bacterium, Halomonas sp. YSR-3

引用

Journal of Oceanology and Limnology 2020年第1期38卷 195-203页

作者： REN Shiying LI Xiangqian YIN Xiulian LUO Chuping LIU Fei Jiangsu Provincial Key Construction Laboratory of Probiotics Preparation Huaiyin Institute of TechnologyHuai’an 223003China Jiangsu Provincial Engineering Laboratory for Advanced Materials of Salt Chemical Industry Huaiyin Institute of TechnologyHuai’an 223003China School of Life Science and Food Engineering Huaiyin Institute of TechnologyHuai’an 223003China

Halomonas ***-3 was isolated from the Yellow Sea and identified as a polyphosphate-accumulating bacterium and the characteristics of its intracellular polyphosphate(polyP)granules and phosphorus absorption were *** YSR-3 cells stored one or two polyP granules in regular appearance and *** diameter of the granules was about 400 nm measuring by a transmission electron microscope(TEM).After stained with 4,6-diamidino-2-phenylindole(DAPI)and visualized by a fluorescence microscope,the cells turned blue and the granules were bright *** composition of granules includes P(major ingredient),Mg,S,K,and Ca as detected by an energy dispersive X-ray spectrometer(EDS).When inorganic phosphorus(po34-)and ferric ion(Fe3+)were added into media,the biomass increased and the cells formed intracellular polyP granules owing to the phosphorus assimilation from *** YSR-3 obtained higher biomass by adding 0.02 g/L FePO4 than 0.005 g/L and 0.01 g/L FePO4;however,the phosphorus absorption was higher with 0.01 g/L FePO4 than 0.005 g/L and 0.02 g/L *** optical density at wavelength 480 nm(OD480nm)was 0.79 and 100%cells could form intracellular polyP *** results show that strain YSR-3 is able to acquire higher biomass and absorb more inorganic phosphorus when 0.01 g/L FePO4 is *** characteristics of absorbing and storing phosphorus as intracellular inorganic polyP granules have a potential for application in high-efficiency phosphorus removal in wastewater treatment.

关键词： polyphosphate-accumulating bacterium polyphosphate granule Halomonas enhanced biological phosphorus removal

来源：评论

学校读者我要写书评

暂无评论

Recent advances in metastable alloys for hydrogen storage:a review

引用

Rare Metals 2022年第6期41卷 1797-1817页

作者： Huai-Jun Lin Yan-Shan Lu Liu-Ting Zhang Hai-Zhen Liu Kaveh Edalati Adám Révész Institute of Advanced Wear and Corrosion Resistance and Functional Materials Jinan UniversityGuangzhou 510632China Guangdong Provincial Key Laboratory of Advance Energy Storage Materials South China University of TechnologyGuangzhou 510640China School of Materials and Energy Guangdong University of TechnologyGuangzhou 510006China School of Energy and Power Jiangsu University of Science and TechnologyZhenjiang 212003China Guangxi Colleges and Universities Key Laboratory of Novel Energy Materials and Related Technology School of Physical Science and TechnologyGuangxi UniversityNanning 530004China Guangxi Novel Battery Materials Research Center of Engineering Technology School of Physical Science and TechnologyGuangxi UniversityNanning 530004China Guangxi Key Laboratory of Processing for Non-Ferrous Metallic and Featured Materials Guangxi UniversityNanning 530004China International Institute for Carbon-Neutral Energy Research(WPI-I2CNER) Kyushu UniversityFukuoka 819-0395Japan Department of Materials Physics E?tv?s UniversityBudapest 1518Hungary

Development of new materials with high hydrogen storage capacity and reversible hydrogen sorp-tion performances under mild conditions has very high value in both fundamental and application *** the past years,some new systems with metastable structures,such as ultra-fine nanocrystalline alloys,amorphous alloys,nanoglass alloys,immiscible alloys,high-entropy alloys,have been abundantly studied as hydrogen storage *** new hydrogen storage properties either from the kinetics or thermodynamics aspects have been *** this review,recent advances of studies on metastable alloys for hydrogen storage applications have been comprehensively *** materials preparation methods to synthesize metastable hydrogen storage alloys are firstly ***,hydrogen storage prop-erties of the metastable alloys are summarized and dis-cussed,focusing on the unique kinetics and thermodynamics properties by forming of such unique metastable *** examples,superior hydrogena-tion kinetics and higher hydrogen storage capacity have been achieved in Mg-based amorphous and nanoglass *** thermodynamics properties can be obtained in the immiscible Mg-Mn and Mg-Zr *** addition to highlighting the recent achievements of metastable alloys in the field of hydrogen storage,the remaining challenges and trends of the emerging research are also discussed.

关键词： Hydrogen storage Metastable alloys Kinetics Thermodynamics

来源：评论

学校读者我要写书评

暂无评论

Co-Wavelength-Channel Integration of Ultra-Low-Frequency Distributed Acoustic Sensing and High-Capacity Communication

Co-Wavelength-Channel Integration of Ultra-Low-Frequency Dis...

引用

Asia Communications and Photonics Conference and Exhibition (ACP)

作者： Long Gu Meng Xiang Zebing Zhang Chaocheng Liu Pengbai Xu Wei Sun Jun Yang Songnian Fu Yuncai Wang Yuwen Qin Institute of Advanced Photonics Technology School of Information Engineering Guangdong University of Technology Guangzhou China Key Laboratory of Photonic Technology for Integrated Sensing and Communication Ministry of Education of China Guangdong University of Technology Guangzhou China Guangdong Provincial Key Laboratory of Information Photonics Technology Guangdong University of Technology Guangzhou China Jiangsu Alpha Optic-electric Technology Co. Ltd. Suzhou China

ISBN: (数字)9798350379266

ISBN: (纸本)9798350379273

We experimentally demonstrate, for the first time, the co-wavelength-channel integration of ultra-low-frequency distributed-acoustic-sensing and high-capacity communication over a 38-km weakly-coupled-seven-core fiber, achieving a sensitivity of $3.89-\mathrm{n}\varepsilon/\sqrt{\text{Hz}}$ @0.1-Hz with 20-m spatial-resolution and a transmission capacity of 241.85-Tb/s.

关键词： Knowledge engineering Sensitivity Oceans Asia Optical fiber networks Solids Sensors Frequency division multiplexing Spatial resolution Photonics

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：