Results 31 to 37 of about 42 (37)
Jianzhu Gangjiegou Jinzhan建材管控是建筑智能施工建造的重要一环，由于型钢截面形状多样、摆放时相互堆叠遮挡且堆放背景环境复杂等因素，其智能实时计数的研究与应用相对于钢筋、钢管等圆形截面建材仍充满挑战。对此，本文提出了一种基于改进YOLOv7的非圆形截面建材的计数模型。首先拍摄大量工字钢、方钢管和木枋的现场照片，结合数据增强手段获得14 950张图像，共包含1 290 210个端面。进而在现有YOLOv7架构中新增一阶段实例分割模块，与目标检测任务并行操作，再通过改进骨干网络和检测头、加入注意力机制 ...
陈宇韬 +5 more
doaj
[Research status and progress of biomaterials for bone repair and reconstruction]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2018 Deng L, Yan Y.
europepmc +1 more source
[Internal fixation of lateral and medial borders for displaced scapular body fractures via minimally invasive approach:results of 23 cases]. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue Ban, 2019 Gao M +7 more
europepmc +1 more source
Jianzhu Gangjiegou Jinzhan文中提出了一种适用于模块装配式钢结构建筑梁柱节点的L形柱灌浆套管连接形式，并对该连接的抗弯剪性能展开了研究。设计并制作了6个L形柱灌浆套管连接试件，对其分别开展了三点和四点抗弯试验研究，随后还进行了有限元参数分析，主要研究了不同内套管长度下该连接的弯剪承载力与纯弯曲承载力特性。试验结果表明：在试验所验证的内套管长度范围内，增加内套管长度可显著提升连接的弯剪、纯弯曲承载力及延性；同尺寸灌浆连接的弯剪承载力和纯弯曲承载力基本一致。有限元分析结果表明：当内套管长度超过一定范围后 ...
张文浩, 王存圳, 李涛, 黄振宇
doaj
[The assessment of the application of Taylor spatial frame in treatment of intermediate or distal tibiofibula fractures]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2018 Zhang N +6 more
europepmc +1 more source
[<i>Lactobacillus plantarum</i> ZG03 alleviates oxidative stress <i>via</i> its metabolites short-chain fatty acids]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoLin S +8 more
europepmc +1 more source
[<i>Lacticaseibacillus paracasei</i> E6 improves vinorelbine-induced immunosuppression in zebrafish through its metabolites acetic acid and propionic acid]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoXinzhu XU +8 more
europepmc +1 more source