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质性研究中的“关系”嵌入与伦理规范——基于韦伯“价值中立”视角的探讨
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作者 熊新燕 《齐齐哈尔大学学报(哲学社会科学版)》 2017年第11期31-34,共4页
质性研究中,研究者与被研究者的"关系"不仅关乎伦理规范,而且直接影响研究成果的信度和效度。文章主要在韦伯价值中立视角下,结合自身访谈经历,就具体操作中不同"关系"嵌入对质性研究及其伦理规范的冲击,对社会学... 质性研究中,研究者与被研究者的"关系"不仅关乎伦理规范,而且直接影响研究成果的信度和效度。文章主要在韦伯价值中立视角下,结合自身访谈经历,就具体操作中不同"关系"嵌入对质性研究及其伦理规范的冲击,对社会学研究方法展开反思与讨论。 展开更多
关键词 价值中立 质性研究 “关系”嵌入 伦理规范
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Integrated design of brushless motor drive and control system for robot joints 被引量:4
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作者 MO Shuai LI Xu +4 位作者 YANG Zhen-ning ZHOU Chang-peng GAO Han-jun CEN Guo-jian HUANG Yun-sheng 《Journal of Central South University》 SCIE EI CAS CSCD 2021年第12期3818-3828,共11页
To meet the requirements of high performance, low cost, and easy operation of the robot, a brushless motor drive and control system for the robot joint is designed, including CAN bus, WPF upper host computer developme... To meet the requirements of high performance, low cost, and easy operation of the robot, a brushless motor drive and control system for the robot joint is designed, including CAN bus, WPF upper host computer development, and magnetic encoders, and other sensors, in which the STM32 F103 chip is used as the main control chip, and the DRV8323 is a brushless motor drive chip. The principle of field-oriented control(FOC) brushless motor drive is elaborated.Meanwhile, the drive and control system design is completed from both hardware and software aspects. Finally, the PID algorithm is used for the closed-loop speed test of the robot joint. The experimental result shows that the designed robot joints and control system run smoothly and reliably, have the characteristics of modularization and miniaturization, and are suitable for the control of micro-service robots and manipulators. 展开更多
关键词 robot joint brushless motor control system upper computer
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Multi-Embed Nonlinear Scale-Space for Image Trust Root Generation 被引量:1
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作者 Lizhao Liu Wentu Gao +3 位作者 Jian Liu Huayi Yin Huarong Xu Shunzhi Zhu 《China Communications》 SCIE CSCD 2016年第11期170-179,共10页
An image trust root is a special type of soft trust root for trusted computing. However,image trust root generation is difficult,as it needs a corresponding stable logic feature generation model and algorithm for dyna... An image trust root is a special type of soft trust root for trusted computing. However,image trust root generation is difficult,as it needs a corresponding stable logic feature generation model and algorithm for dynamical and sustained authentication. This paper proposes a basic function of constructing new scale-spaces with deep detecting ability and high stability for image features aimed at image root generation. According to the heat distribution and spreading principle of various kinds of infinitesimal heat sources in the space medium,a multi-embed nonlinear diffusion equation that corresponds to the multi-embed nonlinear scale-space is proposed,a HARRIS-HESSIAN scale-space evaluation operator that aims at the structure acceleration characteristics of a local region and can make use of image pixels' relative spreading movement principle was constructed,then a single-parameter global symmetric proportion(SPGSP) operator was also constructed. An authentication test with 3000 to 5000 cloud entities shows the new scale-space can work well and is stable,when the whole cloud has 5%-50% behavior with un-trusted entities. Consequently,it can be used as the corresponding stable logic feature generation model and algorithm for all kinds of images,and logic relationships among image features for trust roots. 展开更多
关键词 image trust root SCALE-SPACE diffusion equation evolution operator feature detection
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