Results 71 to 80 of about 18,994,398 (235)
Radio frequency signal detection by ballistic transport in Y-shaped graphene nanoribbons
, 2012 We report on the fabrication and room temperature measurements of a high frequency electrical signal detector. The device is based on the ballistic transport in graphene to detect a high frequency signal. The observed response is linear in the considered
Coccetti, Fabio +3 more
core +1 more source
Fast frequency response for effective frequency control in power systems with low inertia
Jurnal Engineering, 2018 The increasing penetration of renewable generation has led to the decrease of power systems’ overall inertia, which introduces significant challenges to frequency stability.
Q. Hong +8 more
semanticscholar +1 more source
Actuators, 2022 Frequency response functions (FRFs) of rotor systems can be used as indicator functions for condition monitoring. Component-wise FRFs are of high interest to locate errors in the case of defects.
Michael Kreutz +3 more
doaj +1 more source
Dynamic Frequency Response From Controlled Domestic Heat Pumps
IEEE Transactions on Power Systems, 2018 The capability of domestic heat pumps to provide dynamic frequency response to an electric power system was investigated. A thermal model was developed to represent a population of domestic heat pumps.
Mazin T. Muhssin +5 more
semanticscholar +1 more source
Dual‐band filtering power amplifier with extended passband bandwidths and wide stopband rejection
IET Microwaves, Antennas & Propagation, 2023 This article presents a dual‐band filtering power amplifier (DB‐FPA) with extended passband bandwidths and wide stopband rejection, which is helpful in reducing the number of microwave components in the dual‐band radio frequency front end, resulting in ...
Gaoya Dong +3 more
doaj +1 more source
Computer method for identification of boiler transfer functions [PDF]
, 1971 Iterative computer aided procedure was developed which provides for identification of boiler transfer functions using frequency response data. Method uses frequency response data to obtain satisfactory transfer function for both high and low vapor exit ...
Miles, J. H.
core +2 more sources
A system operator’s utility function for the frequency response market
Applied Energy, 2018 How can the electricity system operator determine the optimal quantity and quality of electricity ancillary services (such as frequency response) to procure in a market increasingly characterized by intermittent renewable electricity generation?
T. Greve +3 more
semanticscholar +1 more source
Spin Response and Neutrino Emissivity of Dense Neutron Matter
, 2013 We study the spin response of cold dense neutron matter in the limit of zero momentum transfer, and show that the frequency dependence of the long-wavelength spin response is well constrained by sum-rules and the asymptotic behavior of the two-particle ...
D. N. Voskresensky +6 more
core +1 more source
Diagnosis of Stator Inter-Turn Short Circuit Faults in Synchronous Machines Based on SFRA and MTST
EnergiesAs a key component of the power system, the good or bad conditions of synchronous machines will directly affect the stable supply of electric energy. The inter-turn short fault of the stator is one of the main dangers to the synchronous machine and is ...
Junsheng Ding, Zhongyong Zhao
doaj +1 more source
Stochastic Scheduling With Inertia-Dependent Fast Frequency Response Requirements
IEEE Transactions on Power Systems, 2016 High penetration of wind generation will increase the requirement for fast frequency response services as currently wind plants do not provide inertial response.
Fei Teng, V. Trovato, G. Strbac
semanticscholar +1 more source