Results 41 to 50 of about 302,850 (308)
Low Cost Heart Rate Monitor Using Led-Led Sensor
Al-Khawarizmi Engineering Journal, 2009 A high sensitivity, low power and low cost sensor has been developed for photoplethysmography (PPG) measurement. The PPG principle was applied to follow the dilatation and contraction of skin blood vessels during the cardiac cycle.
Ahmed Mahrous Ragib
doaj +2 more sources
, 2006 YesThis paper describes an automated event detection and location system for water distribution pipelines which is based upon low-cost sensor technology and signature analysis by an Artificial Neural Network (ANN).
Day, Andrew J. +5 more
core +1 more source
Evaluation of a low cost wireless chemical sensor network for environmental monitoring [PDF]
, 2008 We present work on the development and testing of a low-cost wireless chemical sensor network (WCSN) for monitoring irritant/toxic gases in the environment.
Dermot Diamond +7 more
core +1 more source
A Low-Cost, Low-Power Water Velocity Sensor Utilizing Acoustic Doppler Measurement
Sensors, 2022 Current commercial sensors to monitor water flow velocities are expensive, bulky, and require significant effort to install. Low-cost sensors open the possibility of monitoring storm and waste water systems at a much greater spatial and temporal ...
Stephen Catsamas +4 more
doaj +1 more source
Low-cost oil quality sensor based on changes in complex permittivity.
, 2011 Real time oil quality monitoring techniques help to protect important industry assets, minimize downtime and reduce maintenance costs. The measurement of a lubricant's complex permittivity is an effective indicator of the oil degradation process and it ...
Torres Perez, Angel; id_orcid +4 more
core +1 more source
Epidermal Passive RFID Strain Sensor for Assisted Technologies [PDF]
, 2014 An epidermal passive wireless strain sensor using RFID tags is presented. The tag is intended to detect eyebrow or neck skin stretch where paraplegic patients have the capability to tweak facial muscles.
Rumens, C.V. +3 more
core +1 more source
A low-power, low-cost, chamber-based CO2 sensor
Frontiers in WaterSoil CO2 fluxes are a key component of the terrestrial carbon cycle. However, these fluxes are notoriously expensive to measure, especially in remote and understudied regions.
Brian E. Saccardi +12 more
doaj +1 more source
Acoustic tamper detection sensor with very low false alarm rate
, 2008 We describe a device designed to detect interference (vandalism or tampering) by acoustic means. The design employs both a piezoelectric vibration transducer and a common microphone in a novel mechanical arrangement.
Lawrence Muijlwijk +3 more
core +1 more source
The optimisation of a paired emitter-detector diode optical pH sensing device [PDF]
, 2010 With recent improvements in wireless sensor network hardware there has been a concurrent push to develop sensors that are suitable in terms of price and performance.
Corcoran, Brian +11 more
core +1 more source
FEBS Letters, EarlyView.In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai +9 more
wiley +1 more source