Results 91 to 100 of about 1,389,297 (254)
Refrigerant Charge in Heat Pumps - Part II - Charge Reduced Heat Pump Design
, 2015 S.31-34This second part of the article series about refrigerant charge reduction in heat pumps is intended to provide an overview of ways of designing a charge-reduced heat pump.
Braungardt, Simon +2 more
core +1 more source
Energy Management of Low-Pressure Systems Utilizing Pump-Unloading Valve and Accumulator
Energies, 2019 In the context of improving energy efficiency and fuel consumption of mobile hydraulic equipment, it is important to analyze all the sources of power loss occurring within the hydraulic systems. While plenty of analyses have been performed on the working
Patrick M. Stump +2 more
doaj +1 more source
An Edible Chitosan‐Based Acoustic Sensor for Sound‐Responsive Actuation in Edible Robots
Advanced Functional Materials, EarlyView.This study introduces an edible acoustic sensor for robotic food and edible robotics. Built from a chitosan piezoelectric film between gold electrodes, the sensor enables acoustic communication through ON/OFF keying. Integrated into an edible robot with pneumatically actuated arms and neck, it responds to high‐frequency tones.
Valerio Francesco Annese +8 more
wiley +1 more source
, 2016 Case StudyCase Study 16: In the modern pump industry, processed fluids are characterized by a wide spectrum of viscosity values. An unpredicted variation of actual process fluid properties, including viscosity, may lead to unexpected pump performance ...
Cicatelli, Giancarlo, Schiavello, Bruno
core +1 more source
Vertical Turbine Pump Reliability Improvement [PDF]
, 2018 Case StudyThe subject pump was designed and installed when pipeline pressure was estimated high based on a higher production volume. The selected multistage vertical turbine-pumps are generically prone to vibration issues due to its flexible shaft design.
Zhao, Yve
core +1 more source
Capacitive Cold Start-Up Charge Pump Mechanism and Challenges: A Review
IEEE AccessThis paper presents a review of capacitive cold-start-up charge pump (CSUCP) architectures and the design challenges of ultra-low-voltage energy harvesting systems.
Khang Yian Ng +7 more
doaj +1 more source
Advanced Functional Materials, EarlyView.A dynamically actuated reconfigurable topographical surface (DARTS) integrates contact‐mediated bactericidal nanotopography with programmable mechanical actuation to actively disrupt bacterial biofilms. Dynamic surface reconfiguration enhances bacterial killing and suppresses implant‐associated infections in vivo, providing a new strategy for active ...
Mohammad Asadi Tokmedash +4 more
wiley +1 more source
Advanced Functional Materials, EarlyView.We present a scalable EC/TC hybrid smart window using a DCPE that enables tunable solar modulation (ΔTsol:15–43%), fast electrochromic switching (<90 s), and strong thermal blocking (10–14°C reduction). HPMC improves thermal stability, while an optimized ISL enhances EC performance.
Soyeon Kim +4 more
wiley +1 more source
Leakage flow simulation in a specific pump model [PDF]
, 2014 This paper deals with the influence of leakage flow existing in SHF pump model on the analysis of internal flow behaviour inside the vane diffuser of the pump model performance using both experiments and calculations. PIV measurements have been performed
ROUSSETTE, Olivier +6 more
core +1 more source
A Novel Digital Closed Loop MEMS Accelerometer Utilizing a Charge Pump
Sensors, 2016 This paper presents a novel digital closed loop microelectromechanical system (MEMS) accelerometer with the architecture and experimental evaluation. The complicated timing diagram or complex power supply in published articles are circumvented by using a
Yixing Chu +3 more
doaj +1 more source