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拟稳点选定的参数估值差分向量模糊聚类法
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作者 白迪谋 《兰州铁道学院学报》 1996年第3期35-39,共5页
变形监测网按拟稳平差的关键是如何选定网中的拟稳点.本文所提出的方法解决了这一问题;用该方法计算多个实例.均一次选取成功.
关键词 模糊聚类分析 差分向量 拟稳选定 变形监测网
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垂直于基面的任意剖面前后角公式的普适性研究
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作者 顾立志 龙泽明 《工具技术》 北大核心 1997年第8期7-10,共4页
讨论以车刀为基本形式的过选定点垂直于基面的任意剖面前后角公式推导的条件,提出了等效切削刃和等效刀面的概念;阐述了基本公式和导出公式的普适性,对前后角公式在多种类型刀具中的应用作了较系统的说明。
关键词 选定点 基面 切线 等效刀面
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刀具标注角度的探讨
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作者 邓玉萍 《鞍山师范学院学报》 1994年第3期79-80,86,共3页
本文详细论述了构成刀具标注角度参考系的诸平面,在此基础上对刀具的标注角度进行了具体分析,重点研究了组成刀具切削部分的五个基本角度(γ_o、α_o、κ_r、λ_s)。最后以端面车刀为例画出标注角度。
关键词 标注角度 主切削刃 切削平面 参考系 刀具切削部分 后刀面 刃倾角 端面车刀 前刀面 选定点
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Rules of acupoint and meridian selection in acupuncture-moxibustion for stable angina pectoris 被引量:4
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作者 Yi-Han TANG Lan-bo FEI +2 位作者 Jie DENG Song WU Wei HUANG 《World Journal of Acupuncture-Moxibustion》 CSCD 2018年第2期39-43,83,共6页
To summarize and analyze the acupoint selection rules in acupuncture-moxibustion for stable angina pectoris. Clinical studies and literature on acupuncture-moxibustion for stable angina pectoris with definite acupoint... To summarize and analyze the acupoint selection rules in acupuncture-moxibustion for stable angina pectoris. Clinical studies and literature on acupuncture-moxibustion for stable angina pectoris with definite acupoint selection were included through retrieving China National Knowledge Infrastructure(CNKI),Wanfang Database and VIP in order to analyze the characteristics and rules of acupoint selection in acupuncture-moxibustion treatment for stable angina pectoris. It has been found that the acupoint selection of acupuncture-moxibustion prescriptions for stable angina pectoris focused on specific acupoints.The top 5 acupoints with the highest using frequency included Neiguan(内关PC 6),Danzhdng(膻中CV17),Xinshu(心俞BL 15),Ziusanli(足三里ST 36) and Sanyinjiao(三阴交SP 6). Acupuncture-moxibustion treatment of stable angina pectoris involved 12 meridians, mainly including the hand-jueyin pericardium meridian, the foot-taiyang bladder meridian, conception vessel, the foot-yangming stomach meridian, the foot-taiyin spleen meridian, and the hand-shaoyin heart meridian, etc., embodying the characteristics and rules of acupoint selection such as "highlighting the special treatment effect of acupoints" "selecting acupoints along the pericardium meridian, bladder meridian and conception vessel, combining the anterior and the posterior acupoints", "selecting the distal acupoints of spleen and stomach meridians, and focusing on specific acupoints", etc. 展开更多
关键词 Stable angina pectoris ACUPUNCTURE-MOXIBUSTION Acupoint selection characteristics
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Analysis of a sex-structured HIV/AIDS model with the effect of screening of infectives 被引量:1
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作者 S. Athithan Mini Ghosht 《International Journal of Biomathematics》 2014年第5期103-117,共15页
This paper presents a nonlinear sex-structured mathematical model to study the spread of HIV/AIDS by considering transmission of disease by heterosexual contact. The epidemic threshold and equilibria for the model are... This paper presents a nonlinear sex-structured mathematical model to study the spread of HIV/AIDS by considering transmission of disease by heterosexual contact. The epidemic threshold and equilibria for the model are determined, local stability and global stability of both the “Disease-Free Equilibrium” (DFE) and “Endemic Equilibrium” (EE) are discussed in detail. The DFE is shown to be locally and globally stable when the basic reproductive number R0 is less than unity. We also prove that the EE is locally and globally asymptotically stable under some conditions. Finally, numerical simulations are reported to support the analytical findings. 展开更多
关键词 HIV AIDS HETEROSEXUAL global stability simulation
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