نتایج جستجو برای: oxygen sensor

تعداد نتایج: 394025  

2006
Tu Yifeng

A charge-transfer complex was modified on the graphite paste electrode for making a sensitive dissolved oxygen sensor. It was composed of copper with two ligands of phenanthroline and 1,2-dicyano-1,2-dithiolethane. Because of the low redox potential of the core ion and the pull and repulsive effect from the ligands, the redox of modified complex toke place under lower potential and it could sel...

Journal: :nursing practice today 0
parisa moradi majd paramedical faculty, department of anesthesia, school of allied medical sciences, iran university of medical science, tehran, iran. mitra zolfaghari department of e-learning in medical education, virtual school and nursing and midwifery care research center, tehran university of medical sciences, tehran, iran. fatemeh behesht aeen department of critical care, school of nursing and midwifery, tehran university of medical science, tehran, iran. alireza mohseni paramedical faculty, department of laboratory sciences, school of allied medical sciences, mazandaran university of medical science, sari, iran. khadijeh azimi department of critical care, school of nursing and midwifery, tehran university of medical science, tehran, iran. hamid haghani department of biostatistics, school of management and information technology, tehran university of medical sciences, tehran, iran.

background & aim : pulse oximetry is a frequently used and standard non-invasive method for monitoring oxygen (o2)-saturation in blood. many factors including dark skin and pigmentation may effect on rate of saturation of the blood oxygen absorbed by pulse oximetry. the effect of nail polish and/or henna color on blood oxygen has not been yet identified and the present study has been carried ou...

Journal: :American journal of critical care : an official publication, American Association of Critical-Care Nurses 2007
Marco Fernandez Kathy Burns Beverly Calhoun Saramma George Beverly Martin Chris Weaver

BACKGROUND A new forehead noninvasive oxygen saturation sensor may improve signal quality in patients with low cardiac index. OBJECTIVES To examine agreement between oxygen saturation values obtained by using digit-based and forehead pulse oximeters with arterial oxygen saturation in patients with low cardiac index. METHODS A method-comparison study was used to examine the agreement between...

2018
Ning Xue Chao Wang Cunxiu Liu Jianhai Sun

In this paper, a highly monolithic-integrated multi-modality sensor is proposed for intracorporeal monitoring. The single-chip sensor consists of a solid-state based temperature sensor, a capacitive based pressure sensor, and an electrochemical oxygen sensor with their respective interface application-specific integrated circuits (ASICs). The solid-state-based temperature sensor and the interfa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1390

abstract venlafaxine, 1–[2–(dimethylamino)–1–(4–methoxyphenyl) ethyl]cyclohexanol hydrochloride is a novel non-tricyclic antidepressant. venlafaxine is a second generation antidepressant drug, has a neuropharmacologic profile distinct from that of existing antidepressants including tricyclic compounds, selective serotonin reuptake inhibitors and monoamine oxidase inhibitors. venlafaxine impart...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم پایه 1392

a novel and ultra low cost isfet electrode and measurement system was designed for isfet application and detection of hydronium, hydrazinium and potassium ions. also, a measuring setup containing appropriate circuits, suitable analyzer (advantech board), de noise reduction elements, cooling system and pc was used for controlling the isfet electrode and various characteristic measurements. the t...

2009
Diana Biskupski Andrea Geupel Kerstin Wiesner Maximilian Fleischer Ralf Moos

Very often, high-temperature operated gas sensors are cross-sensitive to oxygen and/or they cannot be operated in oxygen-deficient (rich) atmospheres. For instance, some metal oxides like Ga(2)O(3) or doped SrTiO(3) are excellent materials for conductometric hydrocarbon detection in the rough atmosphere of automotive exhausts, but have to be operated preferably at a constant oxygen concentratio...

Journal: :Engineering Research Express 2021

Journal: :American journal of physiology. Heart and circulatory physiology 2003
Milan T Makale Joe T Lin Richard E Calou Amy G Tsai Peter C Chen David A Gough

An experimental system is described for validating electrochemical oxygen sensors implanted in tissues. The system is a modified hamster window chamber in which a thin layer of vascularized tissue is held between two plates, one plate having an observation window and the other plate having an array of oxygen sensors. This arrangement permits simultaneous recording of oxygen sensor signals and n...

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