Results 61 to 70 of about 6,672,508 (354)
An Optical Fibre Depth (Pressure) Sensor for Remote Operated Vehicles in Underwater Applications
Sensors, 2017 A miniature sensor for accurate measurement of pressure (depth) with temperature compensation in the ocean environment is described. The sensor is based on an optical fibre Extrinsic Fabry-Perot interferometer (EFPI) combined with a Fibre Bragg Grating ...
Dinesh Babu Duraibabu +8 more
doaj +1 more source
Development of tubular cardiovascular phantom system for pulse transit time simulation [PDF]
, 2019 This paper presents on the development of a tubular cardiovascular phantom system to simulate pulse transit time (PTT). The PTT defined as the delay time between two pulses in one cardiac cycle has been shown to be promising method for cuffless ...
Correia, Ricardo +4 more
core +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou +10 more
wiley +1 more source
Dual Measurements of Pressure and Temperature With Fiber Bragg Grating Sensor
Al-Khawarizmi Engineering Journal, 2015 The fiber Bragg grating (FBG) technology has been rapidly applied in the sensing technology field. In this work, uniform FBG was used as pressure sensor based on measuring related Bragg wavelength shift.
Tahreer S. Mansour +1 more
doaj +2 more sources
Fabrication of High Sensitivity Carbon Microcoil Pressure Sensors
Sensors, 2012 This work demonstrates a highly sensitive pressure sensor that was fabricated using carbon microcoils (CMCs) and polydimethylsiloxane (PDMS). CMCs were grown by chemical vapor deposition using various ratios of Fe-Sn catalytic solution.
Shuo-Hung Chang +4 more
doaj +1 more source
Pressure Membrane FBG Sensor Realized by 3D Technology
Sensors, 2021 The publication describes the design, production, and practical verification of an alternative pressure sensor suitable for measuring the pressure of gas, based on a combination of fiber-optic technology and 3D printing methods.
Marcel Fajkus +6 more
doaj +1 more source
Exploitation of a pH-sensitive hydrogel for CO2 detection [PDF]
, 2003 In this paper is described how hydrogel is exploited as sensor material for the \ud detection of carbon dioxide (CO2). A pH-sensitive hydrogel disc, which swells and deswells in response to pH changes, was clamped between a pressure sensor membrane and a
Berg, A. van den +3 more
core +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Chronic kidney disease is a growing public health problem worldwide, and the number of patients requiring renal replacement therapy is steadily increasing. Türkiye has experienced a similar rise in both the incidence and prevalence of renal replacement therapy over the past decades; however, national‐level projections of future ...
Arzu Akgül +2 more
wiley +1 more source
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Implantable parylene-based wireless intraocular pressure sensor [PDF]
, 2008 This paper presents a novel implantable, wireless, passive pressure sensor for ophthalmic applications. Two sensor designs incorporating surface-micromachined variable capacitor and variable capacitor/inductor are implemented to realize the pressure ...
Chen, Po-Jui +4 more
core +1 more source