Results 121 to 130 of about 51,223 (249)

The impact of direct vertebral rotation (DVR) on radiographic outcome in surgical correction of idiopathic scoliosis

Archives of Orthopaedic and Trauma Surgery, 2017
IntroductionRecent developments of spinal instruments allow to address nearly all components of idiopathic scoliosis. Direct vertebral rotation (DVR) maneuver was introduced to correct apical axial vertebral rotation.
W. Urbański, Michał Wolanczyk, W. Jurasz, M. Kulej, P. Morasiewicz, S. Dragan, M. Sasiadek, S. Dragan   +7 more
semanticscholar   +1 more source

Comparison between Different Control Strategies of a Z-Source Inverter Based Dynamic Voltage Restorer

Advances in Electrical and Electronic Engineering, 2013
In this paper, dynamic voltage restorer (DVR) compensation methods are compared to each other for the load side connected shunt converter topology of z-source inverter based DVR to choose the best method.
Abolfazl Kazemdehdashti, Ali Reza Seifi, Amin Shabanpoor Haghighi   +2 more
doaj   +1 more source

RETRACTED ARTICLE: Dynamic voltage restorer controller using grade algorithm

Cogent Engineering, 2015
This paper deals with the terminology and various issues about power quality problems. This problem occurs owing to voltage sag, swell, harmonics, and surges.
S. Deepa, M. Ranjani
doaj   +1 more source

LVRT capability enhancement of DFIG based wind turbine with coordination control of dynamic voltage restorer and inductive fault current limiter.

PLoS ONE, 2019
According to the coordination control of a dynamic voltage restorer (DVR) and an inductive fault current limiter (FCL), this paper proposes an efficient low-voltage ride-through (LVRT) scheme for a doubly fed induction generator (DFIG) based wind turbine.
Dongyin Zhang, Hanping Xu, Li Qiao, Lei Chen   +3 more
doaj   +1 more source

The altitude formula and DVR’s [PDF]

Pacific Journal of Mathematics, 1976
openaire   +2 more sources

Comparison between the lowest instrumented vertebrae L3 with the use of direct vertebrae rotation (DVR) and the lowest instrumented vertebrae L4 for non-DVR in adolescents with idiopathic scoliosis Lenke 5C/6C: when LEV is L4

Journal of Orthopaedic Surgery and Research
Objective As there are no substantial selection criteria for determining the lowest instrumented vertebra (LIV) in adolescent idiopathic scoliosis (AIS) Lenke 5C/6C, thus, many surgeons base their selection on experience.
Emmanuel Alonge, Gengming Zhang, HongQi Zhang, Chaofeng Guo   +3 more
doaj   +1 more source

Models of curves over DVRs

, 2018
39 pages, minor ...
openaire   +4 more sources

The footy killed Optus' DVR

Telecommunications Journal of Australia, 2012
Optus' TV Now service sought to take advantage of the "home taping" or "time shifting" exception to copyright infringement provided by s 111 of the Copyright Act 1968 (Cth). It enabled its mobile phone subscribers to record free to air television programs from their mobile phones, with the ability to play them back at a later time.
openaire   +2 more sources

Big Data - DVR (Data Value Realization)

In the modern business landscape, the ability to couple and derive value from Big Data has become essential for organizational success. This paper explores the strategic importance of Big Data Value Realization, focusing on methodologies, challenges, and case studies that illustrate effective practices.
openaire   +1 more source

Discrete variable approaches to tetratomic molecules: part I: DVR(6) and DVR(3) + DGB methods.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 2002
We present two discrete variable representation (DVR) based methods for the determination of the vibrational energy levels of tetratomic molecules. Both methods are designed for orthogonal internal coordinates in a body-fixed reference frame and make use of the DVR of three angular variables.
openaire   +2 more sources