Results 31 to 40 of about 465,113 (285)

Odor-Sensing System to Support Social Participation of People Suffering from Incontinence

open access: yesSensors, 2016
This manuscript describes the design considerations, implementation, and laboratory validation of an odor sensing module whose purpose is to support people that suffer from incontinence. Because of the requirements expressed by the affected end-users the
Alvaro Ortiz Pérez   +11 more
doaj   +1 more source

The electronic properties of doped single walled carbon nanotubes and carbon nanotube sensors [PDF]

open access: yes, 2014
We present ab initio calculations on the band structure and density of states of single wall semiconducting carbon nanotubes with high degrees (up to 25%) of B, Si and N substitution. The doping process consists of two phases: different carbon nanotubes (
Tetik, E.
core   +4 more sources

Limited selectivity of amperometric gas sensors operating in multicomponent gas mixtures and methods of selectivity improvement [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2020
In recent years, smog and poor air quality have become a growing environmental problem. There is a need to continuously monitor the quality of the air. The lack of selectivity is one of the most important problems limiting the use of gas sensors for this
M. Dmitrzak, P. Jasinski, G. Jasinski
doaj   +1 more source

Eddy current based, contactless position transducer for a gas handle [PDF]

open access: yes, 2010
In electric vehicles, it is normal to have an electronic set value for 'gas' and for 'brake'. Traditional potentiometers with sliding contacts are not reliable. Magnetoresistive sensors or hall effect sensors need a magnet on the moving part.
Sergeant, Peter, Van den Bossche, Alex
core   +2 more sources

Potentiometric NO2 Sensors Based on Thin Stabilized Zirconia Electrolytes and Asymmetric (La0.8Sr0.2)0.95MnO3 Electrodes

open access: yesSensors, 2015
Here we report on a new architecture for potentiometric NO2 sensors that features thin 8YSZ electrolytes sandwiched between two porous (La0.8Sr0.2)0.95MnO3 (LSM95) layers—one thick and the other thin—fabricated by the tape casting and co-firing ...
Jie Zou   +4 more
doaj   +1 more source

Microfluidic integrated gas sensors for smart analyte detection: a comprehensive review

open access: yesFrontiers in Chemistry, 2023
The utilization of gas sensors has the potential to enhance worker safety, mitigate environmental issues, and enable early diagnosis of chronic diseases. However, traditional sensors designed for such applications are often bulky, expensive, difficult to
Arian Yeganegi   +4 more
doaj   +1 more source

Ag2S-Decorated One-Dimensional CdS Nanorods for Rapid Detection and Effective Discrimination of n-Butanol

open access: yesNanomaterials
N-butanol (C4H9OH) is a volatile organic compound (VOC) that is susceptible to industrial explosions. It has become imperative to develop n-butanol sensors with high selectivity and fast response and recovery kinetics.
Yubing Gao   +6 more
doaj   +1 more source

Towards Enhanced Gas Sensor Performance with Fluoropolymer Membranes

open access: yesSensors, 2016
In this paper we report on how to increase the selectivity of gas sensors by using fluoropolymer membranes. The mass transport of polar and non-polar gases through a polymer membrane matrix was studied by systematic selection of polymers with different ...
Thorsten Graunke   +3 more
doaj   +1 more source

Wearable gas sensors [PDF]

open access: yes, 2009
Wearable sensing applications have attracted much attention in recent years. The aim of the FP6 funded Proetex project is improving safety and efficiency of emergency personnel by developing integrated wearable sensor systems. This paper describes recent
Diamond, Dermot   +3 more
core  

Improving gas sensing properties of graphene by introducing dopants and defects: a first-principles study

open access: yes, 2009
The interactions between four different graphenes (including pristine, B- or N-doped and defective graphenes) and small gas molecules (CO, NO, NO2 and NH3) were investigated by using density functional computations to exploit their potential applications
Chen, Y.B.   +6 more
core   +1 more source

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