Results 111 to 120 of about 58,011 (288)

Carbon Shell‐Encapsulated PtFe Catalysts in High Temperature Polymer Electrolyte Membrane Fuel Cells: Balancing Molecular Sieving and Diffusion for Enhanced Reactant Access

Advanced Functional Materials, EarlyView.
Scanning electrochemical microscopy reveals reactant diffusion through porous carbon shells to PtFe cores, while the carbon‐encapsulated PtFe enables high‐performance HT‐PEMFC operation by sieving phosphate ions that induce catalyst poisoning. ABSTRACT High‐temperature polymer electrolyte membrane fuel cells (HT‐PEMFCs) operating at 160°C on phosphoric
Myeong‐Geun Kim, Sourabh S. Chougule, Suji Lee, Young Sang Park, Jihyun Choi, Katie Heeyum Lim, Albert S. Lee, Hyun S. Park, Namgee Jung, Sung Jong Yoo   +9 more
wiley   +1 more source

Magentically actuated compressor [PDF]

, 1985
A vibration free fluid compressor particularly adapted for Stirling cycle cryogenic refrigeration apparatus comprises a pair of identical opposing ferromagnetic pistons located in a housing and between a gas spring including a sealed volume of a working ...
Evans, J., Studer, P. A.
core   +1 more source

Development of Vacuum-Chamber-Type Capacitive Micro-Pressure Sensors

Micromachines
This study presents the development of a capacitive pressure sensor tailored for measuring the dynamic pressure of flow fields. The sensor is fabricated using the UMC 0.18 μm CMOS-MEMS process, incorporated with additional post-processing steps such as ...
Lung-Jieh Yang, De-Yu Jiang, Wei-Chen Wang, Chandrashekhar Tasupalli, Horng-Yuan Shih, Yi-Jen Wang   +5 more
doaj   +1 more source

CMOS Capacitive Fingerprint Sensor Based on Differential Sensing Circuit with Noise Cancellation

Sensors, 2018
In this paper, we introduce a differential sensing technique for CMOS capacitive fingerprint detection. It employs a new capacitive-sensing cell structure with charge sharing detection and readout circuit.
Hossam Hassan, Hyung-Won Kim
doaj   +1 more source

Capacitive Arrays for Robotic Sensing

, 1987
Electromagnetic arrays have been used effectively for many years in optimizing the responses of antenna systems. The basic principles that make arrayed antennas work and make them easy to control can also be applied to near field electromagnetic array sensors. The array factor allows for flexibility in sensor geometry.
Gimple, M., Auld, B.
openaire   +3 more sources

Solution‐Processed Two‐Dimensional Indium Oxide on Sodium‐Embedded Alumina for Reconfigurable Optoelectronic Synaptic Transistors

Advanced Functional Materials, EarlyView.
Wafer‐scale two‐dimensioanl In2Se3 oxidized into InOx on sodium‐embedded beta‐alumina enables multifunctional reconfigurable electronics. Sodium ions accumulate within distinct spatial distribution under drain‐controlle and gate‐controlled operation. Drain‐control operation gives controllability of ultraviolet‐driven optoelectronic synaptic conductance
Jinhong Min, Yonghyun Albert Kwon, Hyunbin Kim, Jihyun Kim, Myeongjin Jung, Jaewon Heo, Gwang Ya Kim, Vlastimil Mazanek, Zdeněk Sofer, In Soo Kim, Jeong Ho Cho, Hyesung Park, Sang Min Won, Joohoon Kang   +13 more
wiley   +1 more source

Textile-Based Body Capacitive Sensing for Knee Angle Monitoring. [PDF]

Sensors (Basel), 2023
Galli V, Ahmadizadeh C, Kunz R, Menon C.
europepmc   +1 more source

Linear magnetic motor/generator [PDF]

, 1982
A linear magnetic motor/generator is disclosed which uses magnetic flux to provide mechanical motion or electrical energy. The linear magnetic motor/generator includes an axially movable actuator mechanism.
Studer, P. A.
core   +1 more source

An Edible H2O2 Biosensor for Gastrointestinal Metabolites and Peroxidase Enzyme Quantification

Advanced Healthcare Materials, EarlyView.
We present an edible biosensor for gastric fluid analysis that integrates a caffeic acid–horseradish peroxidase redox system into an edible electrolyte‐gated transistor. The device enables rapid, low‐volume detection of H2O2 and, with minimal modification, metabolites and enzyme activity in simulated gastrointestinal conditions.
Valerio Francesco Annese, Elena Feltri, Pietro Rossi, Valerio Galli, Cristiano Bortolotti, João Paulo Vita Damasceno, Ivan K. Ilic, Dario Natali, Alessandro Luzio, Adrica Kyndiah, Mario Caironi   +10 more
wiley   +1 more source

Seamless integration of touch sensing smart textiles through computerized machine knitting

Journal of Engineered Fibers and Fabrics
The recent advancements in smart textiles have led to a surge in the use of textile-based sensors to detect various signals, including touch, pressure, body temperature, humidity, and so on.
Md. Mohaddesh Hosen, Safi Ahmed
doaj   +1 more source