submitted time 2024-04-24
Abstract： [Background] The RF linac dedicated to boron neutron capture therapy clinic facility(BNCT02) in our institute is mainly composed of an ion source, a low energy beam transmission line, a radio frequency quadrupole accelerator and three high energy beam transmission lines. [Purpose] This study aims to ensure the safe operation of the BNCT02 accelerator. [Methods] A machine protection system (MPS) was designed based on Yokogawa PLC and Experimental Physics and Industrial Control System (EPICS) software toolkit. In order to improve reliability and safety, the system adopts a redundant design, consisting of two completely independent subsystems with consistent main input and output signals. [Results & Conclusions] The test results show that the response time of the BNCT02 accelerator MPS is less than 1.6ms, and it has the characteristics of high stability and reliability, which meets the operational requirements of the BNCT02 accelerator.
Subjects: Nuclear Science and Technology >> Particle Accelerator submitted time 2023-11-07
Abstract： EPICS, a software tool extensively used in large-scale scientific experiments such as particle accelerators. Depending on the scale of the facility, the number of EPICS PV can range from tens of thousands to millions. The ability to swiftly retrieve information related to EPICS PV can notably enhance the operational efficiency and maintenance of particle accelerators. To address this requirement, we designed and developed the EPICS PV information platform. This platform provides a unified user interface that supports the querying of PV lists, real-time statuses, historical data, put logs, IOC statuses, and IOC network information. It integrates these data points to offer a comprehensive view. The user interface of the platform leverages Web technology, with the server-side developed in the Node.js environment. This is complemented by software modules from the EPICS community. In addition, programs for network information collection and other cyclical executions are developed using the Python language. At present, the EPICS PV information platform has been successfully implemented in the CSNS accelerator, where it has significantly contributed to its effective operation and maintenance.
Subjects: Biology >> Bioengineering submitted time 2018-12-06 Cooperative journals: 《中国生物工程杂志》
Abstract：T淋巴细胞受体（TCRs）在抗原识别免疫应答中作用重要，其多样性与宿主免疫反应及肿瘤预后判断密切相关。目的：采用高通量测序技术研究前列腺癌组织和癌旁组织中T细胞受体（TCR）克隆多样性及其克隆序列。方法：收集5例PC患者的癌组织和癌旁组织，提取DNA后经多重PCR技术对TCR β链CDR3区进行扩增。用Illumina MiSeq进行测序，经过数据处理和比对分析，比较前列腺癌组织TCR CDR3组库的组成特征。结果：前列腺癌组织具有更高程度的克隆百分比和较高的高度扩增克隆比HEC（HEC：频率>样本总读数的0.5%的TCR克隆），并获得了24对在癌组织样本中差异表达的V-J基因组合、16对在癌旁组织样本中差异表达的V-J基因组合。结论：前列腺癌组织与癌旁组织均存在差异性的V-J基因组合以及高克隆表达的HEC，其中癌组织样品具有更高的HEC。本研究对PC发生发展的免疫学研究提供了新的数据，对PC免疫监视、T细胞受体变异标志等研究提供了参考，对以后继续研究打下了基础。
Subjects: Library Science，Information Science >> Information Science submitted time 2017-11-08 Cooperative journals: 《数据分析与知识发现》
Abstract：【目的】探究消费者动机风格、产品类型以及营销策略类型三个因素以及因素之间的交互作用对移动电子商务消费者购买决策偏好的影响。【方法】采用情景设计与问卷采集相结合的实验方法开展相关实证研究。【结果】产品类型与营销策略的交互作用对不同动机风格的移动电子商务消费者决策偏好存在显著差异性影响。【局限】未能引入其他影响因素(如产品卷入度、个体认知需求、感知风险等)进行研究。【结论】从移动电子商务消费者类型区分、产品类型及营销策略的选择三方面对移动产品供应商提出相关的对策建议。
Subjects: Library Science，Information Science >> Information Science submitted time 2017-11-08 Cooperative journals: 《数据分析与知识发现》
Abstract：【目的】探究消费者动机风格、产品类型以及营销策略类型三个因素以及因素之间的交互作用对移动电子商务消费者购买决策偏好的影响。【方法】采用情景设计与问卷采集相结合的实验方法开展相关实证研究。【结果】产品类型与营销策略的交互作用对不同动机风格的移动电子商务消费者决策偏好存在显著差异性影响。【局限】未能引入其他影响因素(如产品卷入度、个体认知需求、感知风险等)进行研究。【结论】从移动电子商务消费者类型区分、产品类型及营销策略的选择三方面对移动产品供应商提出相关的对策建议。
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