Results 51 to 60 of about 4,497 (155)

Model predictive control applied to an improved five-level bidirectional converter [PDF]

, 2016
This paper presents an improved five level bidirectional converter (iFBC) controlled by finite control set model predictive control (FCS-MPC). This control strategy consists in using the discrete time nature of the iFBC to define its state in each ...
Afonso, João L., Ferreira, João C., Meléndez, Andrés A. Nogueiras, Monteiro, Vítor Duarte Fernandes   +3 more
core   +1 more source

Eliminating disorderly A sites: Significantly enhanced external quantum efficiency of Bi3+ luminescence in double perovskite phosphor

InfoMat, EarlyView.
The structural transformation from disorder to order was achieved by regulating the A‐site of double perovskite, boosting IQE and EQE to 78% and 43%, respectively. The excellent luminescence properties of the representative CYNO:1%Bi3+ phosphor highlight the multifunctional application potential in solid‐state lighting, fingerprint recognition, and ...
Rui Wang, Asif Ali Haider, Hongzhi Zhang, Haonan Cui, Yiting Huang, Yuyao Fu, Zizhuo Yao, Shuangbao Wang, Jiyang Xie, Hong Li, Zhi Xie, Jing Zhu   +11 more
wiley   +1 more source

High-power CMOS current driver with accurate transconductance for electrical impedance tomography [PDF]

, 2013
Current drivers are fundamental circuits in bioimpedance measurements including electrical impedance tomography (EIT). In the case of EIT, the current driver is required to have a large output impedance to guarantee high current accuracy over a wide ...
Bayford, R., Constantinou, L., Demosthenous, A., Triantis, I.   +3 more
core   +1 more source

Similar dynamic tibiofemoral movements during jump‐landing and walking but distinct hamstrings strength across ACL reconstruction autograft types at mid‐term follow‐up

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose Dynamic tibiofemoral movements following anterior cruciate ligament reconstruction (ACLR) with quadriceps tendon (QT) autografts have not yet been compared to other autografts. We aimed to compare dynamic anterior tibial translation (ATTd) and internal tibial rotation (ITRd) during jump‐landing and walking among patients with QT, bone ...
Tom Vendrig, Michèle N. J. Keizer, Reinoud W. Brouwer, Han Houdijk, Roy A. G. Hoogeslag   +4 more
wiley   +1 more source

A new switched-capacitor boost-multilevel inverter using partial charging [PDF]

, 2007
In this brief, a new switched-capacitor-boost-multilevel (SCBM) inverter is proposed and implemented. This inverter possesses the distinct features of both voltage boost up and near-sinusoidal staircase output voltage.
Chan, MSW, Chau, KT
core   +1 more source

Static and Dynamic Analysis of Porous Gas Bearings Lubricated With Air, Refrigerant R‐134a, Helium and Hydrogen

Lubrication Science, EarlyView.
ABSTRACT Porous gas bearings (PGBs) enable high‐speed, oil‐free operation in modern rotating machinery. This study develops a coupled thermo‐hydrodynamic (THD) model for a cylindrical porous gas bearing lubricated with four working fluids—air, R‐134a, helium and hydrogen.
S. Bechiri, B. Bouchehit, B. Bou‐Saïd
wiley   +1 more source

Construction and Application of Online Vibration Frequency Response Analysis Method for Converter Transformer Winding

High Voltage, EarlyView.
ABSTRACT The harmonic current and vibration of a converter transformer are effective pieces of information for detecting mechanical faults in the winding. In this paper, the ratio of vibration acceleration to the current squared is defined as the vibration frequency response function (VFRF) of the winding, and then, a novel online vibration frequency ...
Shuyu Wu, Fan Zhang, Shengchang Ji
wiley   +1 more source

Assessing Major Adverse Liver Outcomes With Baclofen Compared to Acamprosate in Compensated Alcohol‐Associated Cirrhosis

Alimentary Pharmacology &Therapeutics, EarlyView.
We conducted a nationwide, multicenter cohort study using a target trial emulation framework to compare baclofen and acamprosate in patients with compensated alcohol‐associated cirrhosis. After matching, baclofen initiation was associated with a higher 1‐year risk of major adverse liver outcomes, driven primarily by hepatic encephalopathy, particularly
Yee Hui Yeo, Sepideh Mehravar, Ellen Choi, Ju Dong Yang, Hyun‐Seok Kim, Yun Wang, Aarshi Vipani, Hirsh D. Trivedi, Walid Ayoub, Parnian Naji, Alexander Kuo, Chun‐Ying Wu, Lorenzo Leggio, Juan Pablo Arab   +13 more
wiley   +1 more source

Novel active function blocks and their applications in frequency filters and quadrature oscillators [PDF]

, 2010
Kmitočtové filtry a sinusoidní oscilátory jsou lineární elektronické obvody, které jsou používány v široké oblasti elektroniky a jsou základními stavebními bloky v analogovém zpracování signálu.
Herencsár, Norbert
core  

Topics as Outcomes: Modeling the Influence of Intergovernmental Grants on Policy Diffusion

Policy Studies Journal, EarlyView.
ABSTRACT Intergovernmental grants stimulate the diffusion of policy reforms, as the federal government provides states with a financial incentive to adopt policies aligned with federal priorities. Less is known about the extent to which these grants also stimulate horizontal diffusion across states.
NaLette Brodnax, Sarah James
wiley   +1 more source