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Tunable Fiber Ring Laser Employing a Sagnac Interferometric Filter

光学学报 2003年第S1期23卷 437-438页

作者： Nam Quoc Ngo swee chua tjin School of Electrical and Electronic Engineering Nanyang Technological University Singapore 639798School of Electrical and Electronic EngineeringNanyang Technological University Singapore 639798

A tunable erbium-doped fiber ring laser employing an all-polarization-maintaining fiber loop filter with certain birefringence is proposed and demonstrated. The lasing frequencies can be selected by properly adjusting... 详细信息

关键词： Erbium-doped fiber fiber laser polarization-maintaining fiber Sagnac effect

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Crack monitoring using multiple smart materials;fiber-optic sensors&piezo sensors

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International Journal of Smart and Nano Materials 2017年第1期8卷 41-55页

作者： Muneesh Maheshwari Venu G.M.Annamdas John H.L.Pang Anand Asundi swee C.tjin School of Mechanical and Aerospace Engineering Nanyang Technological UniversitySingaporeSingapore School of Electrical and Electronic Engineering Nanyang Technological UniversitySingaporeSingapore

This article focuses on health monitoring of structures using multiple smart *** this research,two fiber-optic sensors,namely fiber Bragg grating(FBG)and fiber-optic polarimetric sensor(FOPS),are investigated for damage detection in the beam *** is used for local strain measurement while FOPS is used for global strain *** FBG and FOPS show significant changes in the strain due to damages in the ***,at the center of the specimen,piezoelectric wafer active sensor(PWAS)is *** electromechanical admittance(EMA)signature of the specimen beam is recorded by *** changes in the amplitudes of the peaks obtained at various frequencies in this EMA signature are analyzed,and it is shown that the peak amplitudes respond differently to damages and to change in ***,multiple smart materials(FBG,FOPS,and PWAS)are used to get improved information on the health of the beam.

关键词： Fiber-optic polarimetric sensor(FOPS) fiber Bragg grating(FBG) piezoelectric wafer active sensor(PWAS) crack/damage monitoring

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Protocol for a randomized controlled trial of electroacupuncture in the management of patients with axial spondyloarthritis in Singapore(E-AcuSpA)

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Rheumatology & Autoimmunity 2021年第2期1卷 104-114页

作者： Warren Fong Yu Heng Kwan Su-An Quek Ader Lim Chiah Yuen Wong Shin Yoong chua Hui Chin Tan Clara Eng Choy Tip Tan Bao Qiang Dong Youyi Huang Chuen Seng Tan Bee Choo Tai Ting Hui Woon Jie Kie Phang Hwee Ling Koh Ying Ying Leung Julian Thumboo TrulsØstbye Department of Rheumatology and Immunology Singapore General HospitalSingaporeSingapore Duke-NUS Medical School SingaporeSingapore Department of Medicine Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore Internal Medicine Residency SingHealthSingaporeSingapore Programme in Health Services and Systems Research Duke-NUS Medical SchoolSingaporeSingapore Department of Pharmacy National University of SingaporeSingaporeSingapore Singapore Thong Chai Medical Institution SingaporeSingapore Acupuncture and Tuina College Liaoning University of Traditional Chinese MedicineShenyangLiaoningP.R.China Saw swee Hock School of Public Health National University of SingaporeSingaporeSingapore

Background:Despite therapeutic advances,treatment of patients with axial spondyloarthritis(axSpA)continue to pose as a challenge as many do not respond well to conventional Western medications,such as nonsteroidal anti-inflammatory drugs(NSAIDs)and biologic diseasemodifying antirheumatic drugs(bDMARDs).Hence,acupuncture is a possible *** studies found electroacupuncture to be better than manual acupuncture,though no trials have been conducted in patients with *** clinical trial aims to evaluate the clinical efficacy,safety,and cost-effectiveness of electroacupuncture compared to manual acupuncture for patients with ***/Design:This randomized controlled trial will recruit 100 patients diagnosed with axSpA,who have active disease despite NSAIDs and *** patients will be randomized to receive either electroacupuncture or manual acupuncture in a 1:1 *** participants will receive standard rheumatologic care in addition to 20 acupuncture *** mean difference in Bath Ankylosing Spondylitis Disease Activity Index score between the 2 groups over 12 weeks will serve as the primary *** outcomes include improvements in other clinical,quality of life,and economic outcomes over 24 *** adverse events will be ***:Results from this trial may provide evidence regarding the clinical effectiveness,safety,and cost-effectiveness of electroacupuncture compared to manual acupuncture for patients with axSpA,and guide implementation into clinical *** of this trial include the lack of patient blinding,use of a repeated measures design,and possible variation in acupuncture technique amongst the various Traditional Chinese Medicine practitioners.

关键词： axial spondyloarthritis complementary and alternative medicine electroacupuncture randomized controlled trial Traditional Chinese Medicine

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