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Structural health monitoring with fiber optic sensors
F. ANSARI
《机械工程前沿(英文)》 2009年 第4卷 第2期 页码 103-110 doi: 10.1007/s11465-009-0032-y
关键词: Bridges structural health monitoring smart skins cracks strains displacements fiber optic sensors FBG structures
Distributed fiber optic monitoring of a CFA pile with a central reinforcement bar bundle
Yi RUI, Nicholas de BATTISTA, Cedric KECHAVARZI, Xiaomin XU, Mei YIN
《结构与土木工程前沿(英文)》 2021年 第15卷 第1期 页码 167-176 doi: 10.1007/s11709-020-0581-z
关键词: continuous flight auger pile static load test central reinforcement bar bundle distributed fiber optic sensor finite element load transfer
Digitalization optical open loop test system for fiber optic gyroscope
ZHANG Deng-wei, SHU Xiao-wu, MU Xu-dong, LIU Cheng
《机械工程前沿(英文)》 2006年 第1卷 第4期 页码 434-438 doi: 10.1007/s11465-006-0053-8
关键词: stability real-time controlling standardization controlling procedure complete digitalization
null
《医学前沿(英文)》 2017年 第11卷 第3期 页码 359-364 doi: 10.1007/s11684-017-0528-5
Thyroid-associated orbitopathy (TAO) is an inflammatory autoimmune disorder. The most serious complication of TAO is dysthyroid optic neuropathy (DON), which can lead to permanent vision loss because of volume expansion in the orbital apex. Orbital radiation therapy (ORT) is an anti-inflammatory treatment used in the treatment of active TAO. Clinical studies support radiotherapy as having a modest effect on DON, and early radiotherapy may protect against disease progression to DON. Current studies suggest that radiotherapy is generally safe. However, risks still exist in some cases. The possible effects of radiotherapy on TAO, especially complicated with DON, are reviewed. The effects of radiotherapy on DON are not completely known, and evidence from standardized, prospective, and multicenter clinical trials is still lacking.
关键词: thyroid-associated orbitopathy dysthyroid optic neuropathy orbital radiation therapy
杜彦良,张文涛
《中国工程科学》 2009年 第11卷 第10期 页码 61-66
针对重载铁路运行安全监测的迫切需求,提出了一种基于光纤激光传感器的重载铁路在途安全状态监测技术。在给出了光纤激光传感器基本原理与在途安全状态监测技术方案的基础上,指出了其中需要重点解决的关键技术,并给出了具体的实现方案。主要包括:高性能光纤激光振动传感器技术,高精度波长解调技术以及危险状态模式识别技术等。最后,给出了该监测技术的系统实现方案。
新型硅基光纤研究进展 Special Feature on Optoelectronic Devices and Inte
Ting-yun WANG, Fu-fei PANG, Su-juan HUANG, Jian-xiang WEN, Huan-huan LIU, Li-bo YUAN
《信息与电子工程前沿(英文)》 2019年 第20卷 第4期 页码 481-489 doi: 10.1631/FITEE.1900017
关键词: 光纤;光纤器件;基于二氧化硅特种光纤
朱萍玉,蒋桂林,冷元宝
《中国工程科学》 2011年 第13卷 第3期 页码 82-85
建立了采用分布式光纤传感技术的模拟堤坝渗漏监测系统,用来人工模拟土坝渗漏,并得到该种情况下测试光纤长度上的应变图,验证了采用分布式光纤传感技术监测土坝的可行性;运用ANSYS软件建立与试验模型相对应的有限元分析模型,通过选择合适单元,简化边界条件,对一定的工况进行加载分析,得出载荷与应变的关系,以及载荷与塌陷土层重量的关系。文中方法和结论有助于进一步定量研究土坝渗漏大小程度和光纤传感器的合适埋设深度。
基于自适应双光梳系统的高分辨率快速热传感器 Special Feature on Precision Measurement and Inst
Yi-zheng GUO, Ming YAN, Qiang HAO, Kang-wen YANG, Xu-ling SHEN, He-ping ZENG
《信息与电子工程前沿(英文)》 2019年 第20卷 第5期 页码 674-684 doi: 10.1631/FITEE.1800347
关键词: 干涉仪;光纤传感器;激光光谱学
Special issue on “Molecular Sensors and Molecular Logic Gates”
Luling Wu , Tony D. James
《化学科学与工程前沿(英文)》 2022年 第16卷 第1期 页码 1-3 doi: 10.1007/s11705-021-2134-y
High resolution satellite imaging sensors for precision agriculture
Chenghai YANG
《农业科学与工程前沿(英文)》 2018年 第5卷 第4期 页码 393-405 doi: 10.15302/J-FASE-2018226
The central concept of precision agriculture is to manage within-field soil and crop growth variability for more efficient use of farming inputs. Remote sensing has been an integral part of precision agriculture since the farming technology started developing in the mid to late 1980s. Various types of remote sensors carried on ground-based platforms, manned aircraft, satellites, and more recently, unmanned aircraft have been used for precision agriculture applications. Original satellite sensors, such as Landsat and SPOT, have commonly been used for agricultural applications over large geographic areas since the 1970s, but they have limited use for precision agriculture because of their relatively coarse spatial resolution and long revisit time. Recent developments in high resolution satellite sensors have significantly narrowed the gap in spatial resolution between satellite imagery and airborne imagery. Since the first high resolution satellite sensor IKONOS was launched in 1999, numerous commercial high resolution satellite sensors have become available. These imaging sensors not only provide images with high spatial resolution, but can also repeatedly view the same target area. The high revisit frequency and fast data turnaround time, combined with their relatively large aerial coverage, make high resolution satellite sensors attractive for many applications, including precision agriculture. This article will provide an overview of commercially available high resolution satellite sensors that have been used or have potential for precision agriculture. The applications of these sensors for precision agriculture are reviewed and application examples based on the studies conducted by the author and his collaborators are provided to illustrate how high resolution satellite imagery has been used for crop identification, crop yield variability mapping and pest management. Some challenges and future directions on the use of high resolution satellite sensors and other types of remote sensors for precision agriculture are discussed.
关键词: high resolution satellite sensor multispectral imagery precision agriculture spatial resolution temporal resolution
Guixiong LIU, Peiqiang ZHANG, Chen XU
《机械工程前沿(英文)》 2009年 第4卷 第2期 页码 129-133 doi: 10.1007/s11465-009-0035-8
关键词: sensors magnetic fluid property of mag-viscosity controllable output
Soft curvature sensors for measuring the rotational angles of mechanical fingers
Haixiao LIU, Li LI, Zhikang OUYANG, Wei SUN
《机械工程前沿(英文)》 2020年 第15卷 第4期 页码 610-621 doi: 10.1007/s11465-020-0596-0
关键词: soft sensor Ga-In-Sn alloy strain sensing curvature sensing mechanical finger bending
MEMS-based thermoelectric infrared sensors: A review
Dehui XU, Yuelin WANG, Bin XIONG, Tie LI
《机械工程前沿(英文)》 2017年 第12卷 第4期 页码 557-566 doi: 10.1007/s11465-017-0441-2
In the past decade, micro-electromechanical systems (MEMS)-based thermoelectric infrared (IR) sensors have received considerable attention because of the advances in micromachining technology. This paper presents a review of MEMS-based thermoelectric IR sensors. The first part describes the physics of the device and discusses the figures of merit. The second part discusses the sensing materials, thermal isolation microstructures, absorber designs, and packaging methods for these sensors and provides examples. Moreover, the status of sensor implementation technology is examined from a historical perspective by presenting findings from the early years to the most recent findings.
关键词: thermoelectric infrared sensor CMOS-MEMS thermopile micromachining wafer-level package
Performance of fiber reinforced clayey sand composite
Amin CHEGENIZADEH, Hamid NIKRAZ
《结构与土木工程前沿(英文)》 2012年 第6卷 第2期 页码 147-152 doi: 10.1007/s11709-012-0158-6
Mechanical properties of steel, glass, and hybrid fiber reinforced reactive powder concrete
Atheer H.M. ALGBURI, M. Neaz SHEIKH, Muhammad N.S. HADI
《结构与土木工程前沿(英文)》 2019年 第13卷 第4期 页码 998-1006 doi: 10.1007/s11709-019-0533-7
关键词: reactive powder concrete steel fiber glass fiber hybrid fiber
标题 作者 时间 类型 操作
Distributed fiber optic monitoring of a CFA pile with a central reinforcement bar bundle
Yi RUI, Nicholas de BATTISTA, Cedric KECHAVARZI, Xiaomin XU, Mei YIN
期刊论文
Digitalization optical open loop test system for fiber optic gyroscope
ZHANG Deng-wei, SHU Xiao-wu, MU Xu-dong, LIU Cheng
期刊论文
The effect of orbital radiation therapy on thyroid-associated orbitopathy complicated with dysthyroid optic
null
期刊论文
新型硅基光纤研究进展
Ting-yun WANG, Fu-fei PANG, Su-juan HUANG, Jian-xiang WEN, Huan-huan LIU, Li-bo YUAN
期刊论文
基于自适应双光梳系统的高分辨率快速热传感器
Yi-zheng GUO, Ming YAN, Qiang HAO, Kang-wen YANG, Xu-ling SHEN, He-ping ZENG
期刊论文
Modeling and analysis of controllable output property of cantilever-beam inertial sensors based on magnetic
Guixiong LIU, Peiqiang ZHANG, Chen XU
期刊论文
Soft curvature sensors for measuring the rotational angles of mechanical fingers
Haixiao LIU, Li LI, Zhikang OUYANG, Wei SUN
期刊论文