Results 61 to 70 of about 1,319,354 (354)
Inter-annual and decadal changes in teleconnections drive continental-scale synchronization of tree reproduction [PDF]
, 2017 Climate teleconnections drive highly variable and synchronous seed production (masting) over large scales. Disentangling the effect of high-frequency (inter-annual variation) from low-frequency (decadal trends) components of climate oscillations will ...
Ascoli, D +7 more
core +5 more sources
Pancreas, Muscle, and Subcutaneous Fat Atrophy in Patients Undergoing Radiation for Neuroblastoma
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background/Objectives Radiation therapy (RT) is part of standard‐of‐care therapy in high‐risk neuroblastoma (HR‐NBL) but can significantly affect nearby tissue. The objectives of this study were (1) to characterize changes in pancreas volume after RT and (2) to characterize changes in body composition, including body weight percentile ...
Pradipta Debnath +10 more
wiley +1 more source
Energy-Saving Inertial Drive for Dual-Frequency Excitation of Vibrating Machines
Energies, 2020 The low energy efficiency and excessive power of electric motors of large-scale vibrating machines for processing bulk materials motivated a new design of the inertial drive.
Volodymyr Gursky +3 more
doaj +1 more source
Single‐phase grid‐fed variable frequency high‐efficiency induction motor drive for fan applications
IET Energy Systems Integration, 2022 This work deals with a single‐phase grid‐fed fan type variable speed load profile system operated by a mechanical sensorless induction motor (IM) drive. A power factor corrected (PFC) boost converter is utilised for the development of the system.
Khusro Khan, Saurabh Shukla, Bhim Singh
doaj +1 more source
Energies, 2021 In this paper, a novel approach to matrix-converter-based variable frequency drives is presented. It is proposed that these drives are used to provide or draw out reactive power from the power distribution line, keeping the power factor close to unit and,
Gytis Petrauskas, Gytis Svinkunas
doaj +1 more source
Stator current limiting in variable-frequency electrical drive with scalar control system [PDF]
, 2017 The problem of stator current limiting of asynchronous electrical drive under overload is reviewed. Task of research is stated. Mathematical model of simplest scalar control system with current limiter and results of mathematical modeling of electrical ...
Polyakov, V. N. +3 more
core
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Secondary hyperparathyroidism (SHPT) is a common complication in patients receiving maintenance dialysis, driven by calcium and phosphate metabolism disturbances. Calcimimetics are central to the management of SHPT by enhancing calcium‐sensing receptor sensitivity and reducing parathyroid hormone secretion.
Fumihiko Koiwa +3 more
wiley +1 more source
Primary Frequency Control with an Air Handling Unit
EnergiesThe green energy transition threatens stability of the power grid due to associated reduction in grid synchronous inertia. Primary frequency control (PFC) can compensate for the challenge; however, sufficient procurement of primary frequency capacity ...
Niko Karhula +5 more
doaj +1 more source
A microcontroller based voltage space vector modulator suitable for induction motor drives [PDF]
, 1999 Pulse width modulation techniques (PWM), introduced two decades ago, are the most used methods to control the voltage and frequency supplied to electrical AC machines.
Couto, Carlos +2 more
core
A New Layer Casting System for Ceramic Laser Rapid Prototyping Apparatus [PDF]
, 2008 In the existing Ceramic Laser Fusion system, slurry is fed on the high temperature surface of the green part; therefore, a part of water infiltrates into the green block and vaporizes before the process of layer casting.
Chiu, M. L., Huang, P. H., Yen, H. C.
core +1 more source