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一种电梯轿厢门锁的改进设计 被引量:1
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作者 穆洪彪 张含博 赵培余 《机电工程技术》 2018年第11期218-222,共5页
通过对电梯轿厢门锁组成机构的作用及受力分析,发现电梯轿厢门锁的重要金属材质零件门刀和操纵杆受力较小,因此从现代制造业的等强度设计理念出发,通过校核,门刀可以使用工程塑料制造,操纵杆用?1 mm的细弹簧钢丝取代?8 mm的圆钢,从而大... 通过对电梯轿厢门锁组成机构的作用及受力分析,发现电梯轿厢门锁的重要金属材质零件门刀和操纵杆受力较小,因此从现代制造业的等强度设计理念出发,通过校核,门刀可以使用工程塑料制造,操纵杆用?1 mm的细弹簧钢丝取代?8 mm的圆钢,从而大幅降低门刀和操纵杆的原材料成本,这对电梯产品中其他机构组成零件的设计制造具有指导意义。 展开更多
关键词 轿厢 主门刀 操纵杆
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An Overview of Coilia ectenes in Jiangsu Section of the Yangtze River 被引量:7
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作者 段金荣 张红燕 +3 位作者 刘凯 徐东坡 张敏莹 施炜纲 《Agricultural Science & Technology》 CAS 2012年第9期1950-1954,共5页
Anchovies are migratory fish and adult individuals migrate in group from the sea into the river every year because of reproductive needs. TheYangtze River is the largest river in China, with rich food and fish species... Anchovies are migratory fish and adult individuals migrate in group from the sea into the river every year because of reproductive needs. TheYangtze River is the largest river in China, with rich food and fish species, hence, the Yangtze River would be an ideal habitat for growth and reproduction of anchovy. In this pa- per, based on fishing log data of anchovy in Jiangsu section of the Yangtze River, realted analysis was conducted in digital map using statistical software and GIS. From 2008 to 2011, the number of anchovy fishing vessels and fishing days in Jiangsu section remained stable, but the fishing volume and economic profit of single-vessel fluctuated constantly. This study provides references and advices for plan and management of anchovy fishery resource to administrative department. 展开更多
关键词 Coilia ectenes Yangtze River Jiangsu section Fishing log Fisheries re-sources
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