77,897 research outputs found

    室内植物表型平台及性状鉴定研究进展和展望

    Get PDF
    Plant phenomics is under rapid development in recent years, a research field that is progressing towards integration, scalability, multi-perceptivity and high-throughput analysis. Through combining remote sensing, Internet of Things (IoT), robotics, computer vision, and artificial intelligence techniques such as machine learning and deep learning, relevant research methodologies, biological applications and theoretical foundation of this research domain have been advancing speedily in recent years. This article first introduces the current trends of plant phenomics and its related progress in China and worldwide. Then, it focuses on discussing the characteristics of indoor phenotyping and phenotypic traits that are suitable for indoor experiments, including yield, quality, and stress related traits such as drought, cold and heat resistance, salt stress, heavy metals, and pests. By connecting key phenotypic traits with important biological questions in yield production, crop quality and Stress-related tolerance, we associated indoor phenotyping hardware with relevant biological applications and their plant model systems, for which a range of indoor phenotyping devices and platforms are listed and categorised according to their throughput, sensor integration, platform size, and applications. Additionally, this article introduces existing data management solutions and analysis software packages that are representative for phenotypic analysis. For example, ISA-Tab and MIAPPE ontology standards for capturing metadata in plant phenotyping experiments, PHIS and CropSight for managing complicated datasets, and Python or MATLAB programming languages for automated image analysis based on libraries such as OpenCV, Scikit-Image, MATLAB Image Processing Toolbox. Finally, due to the importance of extracting meaningful information from big phenotyping datasets, this article pays extra attention to the future development of plant phenomics in China, with suggestions and recommendations for the integration of multi-scale phenotyping data to increase confidence in research outcomes, the cultivation of cross-disciplinary researchers to lead the next-generation plant research, as well as the collaboration between academia and industry to enable world-leading research activities in the near future

    Fault diagnosis and fault-tolerant control for nonlinear systems with linear output structure

    Get PDF
    Article describes the process of fault diagnosis and fault-tolerant control for nonlinear systems with linear output structure

    The Performance-based Seismic Design Of Tall Frame-Tube Wall Structure Based On Yield Mechanism

    Get PDF
    随着科技和经济的发展,对于高层建筑结构的抗震设计提出了更高的要求,从以往的单纯满足规范要求的指令式的设计方式,转变为满足不同抗震性能要求的设计方式,特别是抗震性能设计思想被引入规范之后,针对高层超限结构往往需要进行性能设计。但现在的性能设计主要还是停留在构件层次,即小震、中震、大震下对应结构构件应该达到怎样的性能目标,这往往使结构性能设计仅局限于构件层次。而从屈服机制角度来探讨结构的抗震性能,实际将构件层次与整体结构层次连系起来,使得结构整体性能目标的确定更加明确,而且更易于构件控制,同时便于工程师从概念角度理解性能设计。 针对以上问题,本文提出基于屈服机制的抗震性能设计思想,以结构的屈服机...With the development of technology and economic, higher requirements are put forward for the seismic design of tall buildings. It is turned form the past command-style design approach simply to meet the codes to the design approach to meet the different requirements of the seismic performance. Especially after the seismic performance design is introduced to the codes,the tall building structures b...学位:工学硕士院系专业:建筑与土木工程学院_结构工程学号:2532013115180
    corecore