Stretchable, Skin-Breathable, and Ultrasensitive Respiration Sensor Using Graphite on Paper With Smart Structures Tập 22 Số 17 - Trang 16804-16810 - 2022
Thanh Nguyen, Nishith Shivakumar Shagle, Hieu Vu, Hung Nguyen, Hoang-Phuong Phan, Van Thanh Dau, Pingan Song, Hao Wang, Tran Dang Quoc, Duy Tien Nguyen, Nam-Trung Nguyen, Dzung Viet Dao, Toan Dinh
Healthy sleep is an important indicator of good physical and mental health. The current technology employed for monitoring sleep quality is typically expensive and invasive, which demands innovations in respiration monitoring. In addition, recent effort in developing wearable respiration sensors has faced great challenges in concurrently obtaining low cost, high stretchability, and high sensitivit...... hiện toàn bộ
#Airflow sensor #graphite on paper #respiration monitoring #wearable and stretchable electronics #smart structure
Effects of electrode configuration on polymer carbon-black composite chemical vapor sensor performance Tập 2 Số 3 - Trang 160-168 - 2002
B. Matthews, Jing Li, S. Sunshine, L. Lerner, J.W. Judy
The performance of polymer carbon-black composite chemical vapor sensors as a function of underlying electrode size and geometry has been studied. The sensor performance parameters investigated were sensor response magnitude to a toluene analyte (100, 500, and 1000 ppm), fundamental sensor noise in the presence of air, and two concentrations of toluene (100 and 500 ppm), and signal-to-noise ratio ...... hiện toàn bộ
#Chemical sensors #Electrodes #Signal to noise ratio #Sensor arrays #Geometry #Polymer films #Signal analysis #Performance analysis #Testing #Plastic insulation
Optimization of gas-sensitive polymer arrays using combinations of heterogeneous and homogeneous subarrays Tập 2 Số 3 - Trang 169-178 - 2002
D.M. Wilson, S.D. Gaffod
Results for optimizing an array of conducting polymer gas sensors for sensing one of five analytes in the presence of up to four interferents are presented. The optimized array consists of subarrays of homogeneous (like) sensors contributing to a larger heterogeneous array of up to ten points (unlike sensors) in multidimensional sensor space. The optimization techniques presented here are linear, ...... hiện toàn bộ
#Polymers #Sensor arrays #Chemical sensors #Sensor phenomena and characterization #Sensor systems #Gas detectors #Multidimensional systems #Additives #Information analysis #Ethanol
Classification of bacteria responsible for ENT and eye infections using the Cyranose system Tập 2 Số 3 - Trang 247-253 - 2002
P. Boilot, E.L. Hines, J.W. Gardner, R. Pitt, S. John, J. Mitchell, D.W. Morgan
The Cyranose 320 (Cyrano Sciences Inc., USA), comprising an array of 32 polymer carbon black composite sensors, has been used to identify species of bacteria commonly associated with medical conditions. Results from two experiments are presented: one on bacteria causing eye infections and one on a new series of tests on bacteria responsible for some ear, nose, and throat (ENT) diseases. For the ey...... hiện toàn bộ
#Microorganisms #Sensor arrays #Medical conditions #Medical services #Principal component analysis #Polymers #Testing #Ear #Nose #Diseases
System identification of electronic nose data from cyanobacteria experiments Tập 2 Số 3 - Trang 218-229 - 2002
G.E. Searle, J.W. Gardner, M.J. Chappell, K.R. Godfrey, M.J. Chapman
Linear black-box modeling techniques are applied to both steady state and dynamic data gathered from two electronic nose experiments involving cyanobacteria cultures. Analysis of the data from a strain identification experiment shows that very simple low order MISO black box model structures are able to produce very high success rates (up to 100%) when identifying the toxic strain of cyanobacteria...... hiện toàn bộ
#System identification #Electronic noses #Steady-state #Microorganisms #Capacitive sensors #Data analysis #Artificial neural networks #Food industry #Biomedical monitoring #Medical diagnosis
Gas sensitivity comparison of polymer coated SAW and STW resonators operating at the same acoustic wave length Tập 2 Số 3 - Trang 150-159 - 2002
I.D. Avramov, M. Rapp, S. Kurosawa, P. Krawczak, E.I. Radeva
Results from systematic gas sensing experiments on polymer coated surface-transverse-wave (STW) and surface-acoustic-wave (SAW) based two-port resonators on rotated Y-cut quartz, operating at the same acoustic wavelength of 7.22 /spl mu/m, are presented. The acoustic devices are coated with chemosensitive films of different viscoelastic properties and thicknesses, such as solid hexamethyldisiloxan...... hiện toàn bộ
#Polymer films #Surface acoustic waves #Acoustic waves #Chemical sensors #Surface acoustic wave devices #Acoustic devices #Solids #Acoustic sensors #Chemical analysis #Phase noise
SnO/sub 2/ gas sensing array for combustible and explosive gas leakage recognition Tập 2 Số 3 - Trang 140-149 - 2002
Dae-Sik Lee, Duk-Dong Lee, Sang-Woo Ban, Minho Lee, Youn Tae Kim
A gas-sensing array with ten different SnO/sub 2/ sensors was fabricated on a substrate for the purpose of recognizing various kinds and quantities of indoor combustible gas leakages, such as methane, propane, butane, LPG, and carbon monoxide, within their respective threshold limit value (TLV) and lower explosion limit (LEL) range. Nano-sized sensing materials with high surface areas were prepare...... hiện toàn bộ
#Sensor arrays #Thermal sensors #Electronic noses #Explosives #Fuzzy neural networks #Gas detectors #Explosions #Nanostructured materials #Additives #Reproducibility of results
A portable electronic nose based on embedded PC technology and GNU/Linux: hardware, software and applications Tập 2 Số 3 - Trang 235-246 - 2002
A. Perera, T. Sundic, A. Pardo, R. Gutierrez-Osuna, S. Marco
This paper describes a portable electronic nose based on embedded PC technology. The instrument combines a small footprint with the versatility offered by embedded technology in terms of software development and digital communications services. A summary of the proposed hardware and software solutions is provided with an emphasis on data processing. Data evaluation procedures available in the inst...... hiện toàn bộ
#Electronic noses #Linux #Hardware #Embedded software #Application software #Instruments #Linear discriminant analysis #Principal component analysis #Programming #Digital communication
Medical diagnosis with the gradient microarray of the KAMINA Tập 2 Số 3 - Trang 254-259 - 2002
I. Koronczi, K. Ziegler, U. Kruger, J. Goschnick
Investigations with human breath and cultures of oral bacteria have been performed to examine the analytical performance of the KAMINA gradient microarray based on a segmented metal oxide layer. Standard microarray chips with 38 segments, one chip equipped with platinum doped SnO/sub 2/ and the other with WO/sub 3/, were inspected. The results show that the gradient microarray is able to detect ac...... hiện toàn bộ
#Medical diagnosis #Microorganisms #Humans #Gases #Principal component analysis #Performance analysis #Platinum #Medical diagnostic imaging #Ethanol #Pattern analysis
Identification of odors using a sensor array with kinetic working temperature and Fourier spectrum analysis Tập 2 Số 3 - Trang 230-234 - 2002
K. Cai, T. Maekawa, T. Takada
A method for the identification of odors using a dynamically driven sensor array has been developed, in which transient responses of the sensor array were used to recognize target odors. Fourier transformation was used to transform the transient response curves of the sensor array into Fourier spectra, and patterns composed of some of the magnitudes in the spectra were used in the pattern recognit...... hiện toàn bộ
#Sensor arrays #Temperature sensors #Kinetic theory #Acoustic sensors #Gas detectors #Ethanol #Sensor systems #Electronic noses #Fourier transforms #Transient response