Axial skeleton and appendages play pivotal roles in locomotion,bracing and body protection.In certain lineages,axial ske......

针对双尾快速客船的船型特点，以具有典型性的优良船型为母体，围绕螺旋桨流场，进行导轮、尾框鳍、舵球等附体的理论设计与试验研究，探讨......

以中心刚体柔性附件的航天器对对象，研究了姿态控制中心体的转动惯量与附件振动衰减速率之间的关系。以此为基础提出一种附件振动抑......

文章以SUBOFF潜艇模型为研究对象，对附体相对主艇体处于不同位置下的尾流场进行了数值模拟计算。采用κ-ω加湍流模型，求解RANS方程......

猪牙花种球在促成栽培中存在破眠困难的问题,本试验以2009年5月份猪牙花种球为试验材料,通过两种不同低温（3～5℃和6～10℃）的处理,取样......

用翠菊下胚轴作外植体,研究不同激素组合和附加物对翠菊下胚轴愈伤组织诱导的影响。结果表明,在初代培养过程中,以MS＋6-BA 0.5mg/L＋I......

Comparative morphological study of five varieties of Colocasia esculenta (L.) Schott present in Anambra State, Nigeria w......

己内酰胺作为一种重要的化工原料广泛的应用于各个领域,目前我国己内酰胺主要采用环己酮氨肟化法来进行生产,随着市场竞争的逐步加......

The herbal medicine occupy distinct position right from ancient period. The plant Calotorpis procera is known by differe......

The present article report a rare case of intraosseous dermoid cyst in mandible which clinically and radio-graphicaly pr......

In marine engineering,appendages such as fin stabilizers and/or T-foils are made to rotate and to reduce the motion of s......