Results 61 to 70 of about 95,064 (281)
Carbon Energy, EarlyView.Pb/Ge/Br codoping in n‐type polycrystalline SnSe induces band convergence and high‐density dislocations, yielding a high power factor of 7.47 μW cm−1 K−2 and ultralow lattice thermal conductivity. Consequently, a peak ZT of 1.6 is achieved, overcoming the traditional performance limitations of n‐type SnSe.
Pubao Peng +7 more
wiley +1 more source
Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2018 Bazıgüç elektroniği devrelerinin kontrolünde darbe genişlik modülasyon (DGM)teknikleri büyük önem taşımaktadır. Mikroişlemci teknolojilerinin gelişmesidarbe genişlik modülasyon tekniklerinin çeşitlilik kazanmasına yol açmıştır.
Mustafa Dursun, M.kenan Döşoğlu
doaj +1 more source
Intermodulation noise related to THD in wide-band amplifiers [PDF]
IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, 1997 It is shown that the power of the intermodulation noise of a wide-band amplifier with a Gaussian input signal, can be estimated by the total harmonic distortion (THD) with a sinusoid input signal of appropriate amplitude. The THD is, as opposed to the intermodulation noise, easy to measure and use as a design parameter.
Sjöland, Henrik, Mattisson, Sven
openaire +3 more sources
EcoEnergy, EarlyView.As maritime transport electrifies, bidirectional charging (V2G) offers a dual‐purpose solution for energy resilience and economic viability. This work identifies key technological advancements and lifecycle challenges utilizing practical case studies to demonstrate how V2G systems can drive decarbonization and grid stability in the marine sector ...
Jonathan Bloor +3 more
wiley +1 more source
Synchronization of Grid Connected Three Phase Inverter [PDF]
E3S Web of ConferencesThe synchronization between the grid and inverter is crucial for power sharing. By reconnecting the inverter to the electrical grid, it becomes possible to provide power in grid-off mode.
Sharma Ratish +3 more
doaj +1 more source
Modeling and Implementation of Space Vector PWM Driver of 3-Phase Induction Motor [PDF]
Engineering and Technology Journal, 2009 This research proposes the design, simulation, and implementation of a three-phase induction motor driver, using voltage-fed Space Vector Pulse Width Modulation technique (SVPWM), which is an advance and modern technique. The SVPWM provides maximum usage
Fadhil Abbas Hassan, Majid K. Al-Khatat
doaj +1 more source
Energy Science &Engineering, EarlyView.Using density functional theory (CASTEP, GGA–PBE), the structural, electronic, optical, and mechanical properties of YSeO₃X (X = F, Cl, Br, and I) compounds are systematically investigated. The materials have exhibited structural stability, tunable band gaps, strong optical absorption, anisotropic ductile behavior, and promising potential for ...
Nawishta Jabeen +5 more
wiley +1 more source
Health Technology Assessment, 2016 Background: Optimal surgical intervention for low-grade haemorrhoids is unknown. Rubber band ligation (RBL) is probably the most common intervention. Haemorrhoidal artery ligation (HAL) is a novel alternative that may be more efficacious.
Steven Brown +24 more
doaj +1 more source
The Surgery Journal, 2020 Introduction The introduction and diffusion of new techniques for hemorrhoidal surgery have made it clear how much Goligher classification is inadequate in the modern times, lacking in any correlation between anatomical and clinical features to a ...
Gabriele Naldini +7 more
doaj +1 more source
Operads of moduli spaces of points in C^d [PDF]
, 2010 We compute the structure of the homology of an operad built from the spaces TH_{d,n} of configurations of points in C^d, modulo translation and homothety. We find that it is a mild generalization of Getzler's gravity operad, which occurs in dimension d =
Westerland, Craig
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