Results 51 to 60 of about 1,319,354 (354)

Servo Motor Control Using Variable Frequency Drive [PDF]

open access: yes, 2018
Variable Frequency Drive (VFD) refers to an adjustable-speed drive where alternating current electric motor can be controlled by changing the values of frequency and voltage.
Al-Azdee, Mustafa, Waste, Vaibhav
core   +1 more source

Energy-efficient variable frequency asynchronous electric drive

open access: yesJournal of Physics: Conference Series, 2021
Abstract Currently, there are quite a large number of various scientific papers on the creation of a controlled asynchronous engine and the optimization of its modes, and the availability of acceptable results for practical implementation, but there is still no single generally accepted approach to solving the problem.
D A Vasilyev   +2 more
openaire   +1 more source

Evaluation of the Utility of Baseline Echocardiogram in Patients With Standard Risk Precursor B‐Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
Abstract Background A routine baseline echocardiogram is often obtained prior to anthracycline administration in children with cancer. The utility of baseline echocardiogram is unclear in patients with standard risk B‐cell acute lymphoblastic leukemia (SR B‐ALL) as their anthracycline cumulative dose is low.
Ziyad Alrajhi   +4 more
wiley   +1 more source

Describing function properties of a magnetic pulse-width modulator [PDF]

open access: yes, 1972
An analysis is presented for the transfer functions of a particular pulse-width modulator and power switch subsystem that has been widely used in practical switching-mode d-c regulator systems. The switch and filter are in a "buck" configuration, and the
Middlebrook, R. D.
core   +2 more sources

CPX‐351 in High‐Risk Relapsed Pediatric Acute Leukemia: Real‐World Phase 1 Data Establishing the FDA‐Approved Dose

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background/Objectives Outcomes for pediatric relapsed/refractory (R/R) acute myeloid leukemia (AML) remain dismal. CPX‐351, a liposomal formulation of cytarabine and daunorubicin, may have less off‐target toxicities than traditional chemotherapies and has shown improved outcomes for adults with newly diagnosed therapy‐related AML.
Jonathan D. Bender   +17 more
wiley   +1 more source

All-optical trapping and acceleration of heavy particles

open access: yes, 2008
A scheme for fast, compact, and controllable acceleration of heavy particles in vacuum is proposed, in which two counterpropagating lasers with variable frequencies drive a beat-wave structure with variable phase velocity, thus allowing for trapping and ...
Amaldi U   +15 more
core   +1 more source

Improving the Evaluation and Management of Transfusion‐Related Iron Overload in Children, Adolescents, and Young Adults Following Cancer Treatment or Hematopoietic Stem Cell Transplantation

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Transfusion‐related iron overload (TRIO) is a late effect of therapy impacting survivors of childhood cancer and hematopoietic stem cell transplantation (HSCT) who receive frequent packed red blood cell (pRBC) transfusions. Surprisingly, there are no accepted guidelines to assist providers in identifying and treating at‐risk ...
Luke Gingell   +3 more
wiley   +1 more source

Study on the Noise Characteristic of Synchronous Belt Drive based on Wavelet Decomposition

open access: yesJixie chuandong, 2020
The drive noise of synchronous belt can be divided into meshing impact noise, transverse vibration noise, air flow noise and friction noise. In order to study the frequency distribution characteristics of automobile synchronous belt noise signal, firstly,
Yaochen Shi   +3 more
doaj  

Unshielded Cable modeling for Conducted Emissions Issues in Electrical Power Drive Systems [PDF]

open access: yes, 2017
In power electronics applications, high frequency models for cables are necessary to understand EMI issues in pulsewidth modulation drives. This paper shows the approach developed at the French Institute of Technology (IRT) Saint-Exupery, in order to ...
Carayon, Jean-Pierre   +5 more
core   +1 more source

MYCN Amplification in RB1‐Inactivated Retinoblastoma: Association With High‐Risk Features

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background MYCN amplification occurs in a subset of retinoblastoma cases, both with and without RB1 inactivation. It has been suggested that retinoblastomas with MYCN amplification represent a distinct entity with more aggressive clinical behavior.
Kyriaki Papaioannou   +9 more
wiley   +1 more source

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