We explore the influence mechanism of target current and Ar flow on the structural and optical properties of the Al/Ti-DLC/DLC selective absorbing films. The tran mittance of the DLC (diamond-like car
在室温空气环境下，通过改变压接方式(正向压接、反向压接和六方压接)和压入量(4.6mm、4.8mm和5.0mm)，研究了两种试验参数对吊弦滑动荷重特性及弯曲微动疲劳寿命的影响.同时运用扫描电子显微镜(SEM)对微动接触区和疲劳断口进行了详细分析.滑动荷重试验结果表明，在相同压入量和荷重条件下，采用六方压接方式的吊弦，其自由端与钳压管之间的相对滑移幅值最大，正向压接方式的吊弦次之，反向压接方式的吊弦
Hydraulic system is the control center of aircrafts. The contaminant content of hydraulic oil is involved with the serving life and failure rate of hydraulic system. How to control the oil contaminati
海洋生物污损给人类海洋活动带来了巨大的困扰，严重危害海洋内人工设施的正常运行，因此得到了广泛的关注。本文简要介绍了海洋污损的现状，目前广泛认同的海洋污损机制主要分为四个阶段，即从蛋白质多糖形成的条件膜、细菌等原核生物形成的生物膜到藻类真菌等生物的附着、藤壶海藻等微生物以上述为基础形成的大型生物污损层逐级形成，前一阶段的形成为后一阶段提供了条件和基础。同时概述了海洋生物污损对海洋设施带来的危害，不仅
The self-loosening behavior of bolted joints subjected to axial excitation was investigated using experimental and n merical methods. A reduction of clamping force was found in the bolt joint system.
Magnesium and its alloys as a biodegradable materials are being more and more peoples attention for for biomedical applications but the biggest challenge is the proper corrosion control. In our work,
In the present study the tribological properties influenced by the microstructure of the Fe-based alloy coatings obtained by multi-pass laser cladding has been systematically studied using in reciproc
The slipping and falling accidents are a serious problem in many countries during walking, researches showed that slipping was one of the most common causes of falling accidents, but the occurrence an
金属刀具切割植物纤维是农业工程领域常见的金属-生物材料相互作用形式,切割过程中的刀具磨损、能量消耗和切割质量是衡量切割系统性能的重要指标。为此设计了植物纤维切割试验装置,建立了纤维和刀具的受力模型,推导了切割过程中纤维拉伸能耗的计算公式。采用30°、45°两种刃口角度的刀具对黄麻纤维进行了切割试验,结合高速摄像图像分析了切割过程,认为黄麻纤维的破坏是一个同时受拉伸和切割的复杂过程；分析对比了不同刃
随着生活节奏的加快,消化系统疾病逐渐成为一类严重影响人类身体健康以及生活质量的常见疾病,据报道大约有70％的人患有不同程度的消化道疾病.目前,临床上最常见的消化系统疾病治疗方法,是以食管、结肠作为通道,输送胃肠镜等柔性器械至病变位置,对病变组织进行检查、消融、切除或剥离等操作.目前国内外主要研究了食管组织内部膨胀的三维力学性能,对单轴拉伸下其不同生理部位的力学性能研究较少.因此,试验以刚离体的猪食