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Non standard pallet series designing problem in ammunition supply system 被引量:2
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作者 LiLiangchun guomin WangHongwei 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2005年第1期74-77,共4页
According to the compound packing problem in ammunition supply system in our army, the non-standard pallet series design model is proposed, and the original problem that can be solved as a set cover problem with a nes... According to the compound packing problem in ammunition supply system in our army, the non-standard pallet series design model is proposed, and the original problem that can be solved as a set cover problem with a nested bin-packing problem, is analyzed, then two heuristic algorithms are applied to solve the problem. 展开更多
关键词 ammunition supply PALLET minimum set covering bin-packing.
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椎管内分娩镇痛对婴儿早期发育的临床观察 被引量:2
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作者 雷波 杨美玲 +6 位作者 闫合燕 郭敏 王云娟 赫金鑫 贺淑君 闫琦 王雷 《北京医学》 CAS 2023年第3期221-225,共5页
目的 探讨椎管内分娩镇痛对婴儿早期发育的影响。方法 选取2018年1-12月北京市海淀区妇幼保健院自然分娩婴儿630例,根据母亲分娩时是否实施分娩镇痛,分为观察组(实施分娩镇痛)和对照组。比较两组母亲基线资料,婴儿基线资料及体格发育、... 目的 探讨椎管内分娩镇痛对婴儿早期发育的影响。方法 选取2018年1-12月北京市海淀区妇幼保健院自然分娩婴儿630例,根据母亲分娩时是否实施分娩镇痛,分为观察组(实施分娩镇痛)和对照组。比较两组母亲基线资料,婴儿基线资料及体格发育、神经心理、智力发育情况和产程时间。结果 630例婴儿男321例,女309例,其中观察组280例,对照组350例。两组婴儿母亲基线资料(年龄、受教育程度、孕周、产钳助产率、喂养方式)、婴儿基线资料[体重、身高、Apgar(1 min、5 min)评分、新生儿行为神经评估]、体格发育(42 d、6个月、1岁的体重、身高、头围、囟门和牙齿)、神经心理发育(大运动、精细动作、认知能力、语言和社会行为)和智力发育的比较,差异均无统计学意义(P>0.05);观察组母亲总产程、第一产程和第二产程时间长于对照组[520(363.25, 727.50)min比330(250.00, 485.00)min,450(300.00,660.00)min比277(198.75, 420.00)min,45(31.00, 64.00)min比37(26.00, 56.00)min],差异均有统计学意义(P<0.05)。结论 母亲椎管内分娩镇痛不影响婴儿的早期发育,值得临床推广。 展开更多
关键词 椎管内麻醉 分娩镇痛 早期发育 婴儿
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Analysis on the source of raw material of the celadon bodies from Zhanggongxiang kiln and Qingliangsi kiln by PIXE
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作者 ZHAOWeijuan LIGuoxia +8 位作者 XIEJianzhong guomin LuXiaoke GAOZhengyao CHENHuansheng ZhangBin SUNXinmin GUOMusen JINWenqing 《Chinese Science Bulletin》 SCIE EI CAS 2004年第18期1986-1990,共5页
The proton induced X-ray emission(PIXE)is used to measure the chemical ingredients of seven main ele-ments of each sample of celadon body from Qingliangsi kiln in Baofeng County and Zhanggongxiang kiln in Ruzhou City.... The proton induced X-ray emission(PIXE)is used to measure the chemical ingredients of seven main ele-ments of each sample of celadon body from Qingliangsi kiln in Baofeng County and Zhanggongxiang kiln in Ruzhou City. The PIXE data are then analyzed by fuzzy cluster method, and the trend cluster diagram is obtained to determine their relation of classification and provenance. The result shows that the producing area of raw material of Ru porcelain bodies is concentrated in Qingliangsi kiln, while that of cela-don bodies is slightly scattered in Zhanggongxiang kiln. The raw material origin of Ru porcelain bodies from Qingliangsi kiln in Baofeng County is different from that of Zhang-gongxiang kiln in Ruzhou City. The materials of Ru Guan porcelain bodies and Ru Civil porcelain bodies in Qingliangsi kiln are basically the same. 展开更多
关键词 原料 青瓷体 陶瓷工业 模糊聚类分析 X射线发射分析
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