Results 81 to 90 of about 103,948 (343)

Lumped-parameters equivalent circuit for condenser microphones modeling

The Journal of the Acoustical Society of America, 2017
This work presents a lumped parameters equivalent model of condenser microphone based on analogies between acoustic, mechanical, fluidic, and electrical domains. Parameters of the model were determined mainly through analytical relations and/or finite element method (FEM) simulations. Special attention was paid to the air gap modeling and to the use of
Esteves, J., Rufer, Libor, Ekeom, D., Basrour, Skandar   +3 more
openaire   +3 more sources

OPTRACE: Optical Imaging–Guided Transplantation and Tracking of Cells in the Mouse Brain

Advanced Science, EarlyView.
OPTRACE establishes an optical, two‐step platform for intracerebral cell therapy. Transparent glass pipettes enable real‐time, image‐guided delivery, while multiplex genetic labeling with two‐photon and bioluminescence readouts supports longitudinal single‐cell tracking and host–graft dynamics.
Jinghui Wang, Honglin Tan, Colleen Russell, Mikolaj Walczak, Dawei Gao, Guanda Qiao, Xiaoxuan Fan, Chengyan Chu, Miroslaw Janowski, Piotr Walczak, Yajie Liang   +10 more
wiley   +1 more source

Lumped-Parameter Models Comparison for Natural Ventilation Analyses in Buildings at Urban Scale

Energies
This study validates a three-zone lumped-parameter airflow model for Urban Building Energy Modeling, focusing on its accuracy in estimating air change rates caused by natural ventilation, referred to here as air change rate.
Yasemin Usta, Lisa Ng, Silvia Santantonio, Guglielmina Mutani   +3 more
doaj   +1 more source

Vertical axis wind turbine drive train transient dynamics [PDF]

, 1982
Start up of a vertical axis wind turbine causes transient torque oscillations in the drive train with peak torques which may be over two and one half times the rated torque of the turbine.
Carne, T. G., Clauss, D. B.
core   +1 more source

Mussel‐Bioinspired Edible Ca2+‐Crosslinked Alginate Hydrogel Electrodes for Glucose Gastrointestinal Monitoring

Advanced Science, EarlyView.
A fully edible soft electrode is engineered from Ca2⁺‐crosslinked alginate integrated with polydopamine, silver nanoparticles, and food‐grade glucose oxidase. The hybrid hydrogel combines ionic and electronic conduction, enabling efficient glucose‐to‐H2O2 conversion and catalytic reduction in simulated intestinal fluid.
Verdiana Marchianò, Claudio Pellegrini, Angelo Tricase, Eleonora Macchia, Andrea Brattelli, Luigi Gentile, Patrizia Nadia Hanieh, Noemi Fiaschini, Antonio Rinaldi, Luisa Torsi, Paolo Bollella   +10 more
wiley   +1 more source

Evolution and Modern Approaches for Thermal Analysis of Electrical Machines [PDF]

, 2009
In this paper, the authors present an extended survey on the evolution and the modern approaches in the thermal analysis of electrical machines. The improvements and the new techniques proposed in the last decade are analyzed in depth and compared in ...
Boglietti, Aldo, Cavagnino, Andrea, Mejuto, C., Mueller, M., Shanel, M., Staton, D.   +5 more
core   +1 more source

Lumped Parameters Model of a Crescent Pump [PDF]

Energies, 2016
This paper presents the lumped parameters model of an internal gear crescent pump with relief valve, able to estimate the steady-state flow-pressure characteristic and the pressure ripple. The approach is based on the identification of three variable control volumes regardless of the number of gear teeth.
RUNDO, Massimo, CORVAGLIA, ALESSANDRO
openaire   +3 more sources

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

Advanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel, Shriram Ramanathan, Ronald P. Jenkins, Michael J. Carter   +3 more
wiley   +1 more source

Lumped and distributed‐parameter pipe model framework for thermal transients: State‐space and transfer function theory and application to multi‐energy systems

IET Renewable Power Generation, 2023
The accurate prediction and simulation of thermal transients in district heating networks is essential for the meaningful analysis of combined heat and power systems.
Xiu Liu, Kai Strunz
doaj   +1 more source

Extending ballistic graphene FET lumped element models to diffusive devices [PDF]

, 2012
In this work, a modified, lumped element graphene field effect device model is presented. The model is based on the "Top-of-the-barrier" approach which is usually valid only for ballistic graphene nanotransistors.
Canali, Castro Neto, Chen, D. Mencarelli, Datta, Datta, Dorgan, F. Coccetti, Fang, Fiori, G. Deligeorgis, G. Vincenzi, Jiménez, Khakifirooz, L. Pierantoni, Liang, M. Dragoman, McClure, Mencarelli, Mencarelli, Meric, Mucciolo, Novoselov, Novoselov, Ouyang, Ouyang, R. Plana, Rahman, Reich, Ryzhii, Ryzhii, Ryzhii, Slonczewski, Son, Tan, Thiele, Thiele, Wallace, Wang, Yang   +39 more
core   +3 more sources