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露天爆破排距随台阶高度、孔径变化规律及其应用
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作者 丁汉堃 石磊 +1 位作者 王峰 张阳 《采矿技术》 2024年第3期106-110,共5页
露天爆破抵抗线(排距)是重要的爆破参数,选择合理的抵抗线需要平衡和规避各种受制条件,其中台阶高度(孔深)、炮孔直径是直接影响因素。台阶高度、孔径、抵抗线三者匹配,以及以台阶高度、孔径变化前的抵抗线求出变化后的新抵抗线是爆破... 露天爆破抵抗线(排距)是重要的爆破参数,选择合理的抵抗线需要平衡和规避各种受制条件,其中台阶高度(孔深)、炮孔直径是直接影响因素。台阶高度、孔径、抵抗线三者匹配,以及以台阶高度、孔径变化前的抵抗线求出变化后的新抵抗线是爆破设计中待解决的问题。针对台阶高度、孔径作用下的抵抗线计算,介绍了经验公式的“重合”计算法,阐述了压杆原理和条形药包公式相结合导出的“压杆”计算法,并以中间抵抗线W12为过渡,以条形药包单耗q_(L)为中介推导出三元转换公式,该公式应用简便,适用于施工现场,具有准确、简单、实用等特点,同时弥补了重合法中出现的不重合现象。两种计算方法的实用性已在工程实例中得到了验证,可为爆破施工中类似问题的解决提供参考。 展开更多
关键词 上压杆计算 重合计算法 抵抗线 排距 台阶高度 炮孔直径
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A precise and accurate acupoint location obtained on the face using consistency matrix pointwise fusion method 被引量:4
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作者 Yang Xuming Ye Yijun +5 位作者 Xia Yong Wei Xuanzhong Wang Zheyu Ni Hongmei Zhu Ying Xu Lingyu 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 2015年第1期110-116,共7页
OBJECTIVE: To develop a more precise and accurate method, and identified a procedure to measure whether an acupoint had been correctly located.METHODS: On the face, we used an acupoint location from different acupunct... OBJECTIVE: To develop a more precise and accurate method, and identified a procedure to measure whether an acupoint had been correctly located.METHODS: On the face, we used an acupoint location from different acupuncture experts and obtained the most precise and accurate values of acupoint location based on the consistency information fusion algorithm, through a virtual simulation of the facial orientation coordinate system.RESULTS: Because of inconsistencies in each acupuncture expert's original data, the system error could not be modified using the characteristics ofthe general weight calculation. First, we corrected each expert of acupoint location system error itself,to obtain a rational quantification for each expert of acupuncture and moxibustion acupoint location consistent support degree, to obtain pointwise variable precision fusion results, to put every expert's acupuncture acupoint location fusion error enhanced to pointwise variable precision. Then, we more effectively used the measured characteristics of different acupuncture expert's acupoint location, to improve the measurement information utilization efficiency and acupuncture acupoint location precision and accuracy.CONCLUSION: Based on using the consistency matrix pointwise fusion method on the acupuncture experts' acupoint location values, each expert's acupoint location information could be calculated, and the most precise and accurate values of each expert's acupoint location could be obtained. 展开更多
关键词 Information fusion Face recognition Facial acupoint Acupoint location
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