Results 211 to 220 of about 20,191 (260)

DNA as a quantum system in evolution. [PDF]

PLoS One
Garcia NA.
europepmc   +1 more source

An Improved Fast Computational Method for Vibration Characteristic Analysis of Dry‐Type Iron Core Reactor

High Voltage, EarlyView.
ABSTRACT Structural mechanics field simulation plays a critical role in the vibration characteristic analysis of electrical equipment. Existing structural field analysis of equipment based on numerical simulation faces challenges such as convergence difficulties and prolonged computational time, failing to meet the demand for real‐time prediction of ...
Wanqing Wang, Caibo Liao, Bang Liu, Kai Li, Wenyu Liu, Zhaoguo Li, Xianfa Tian   +6 more
wiley   +1 more source

Modelling the Four‐Dimensional Power Line Sag Dynamics by Point Signature in Time‐Series Synthetic‐Aperture Radar Images

High Voltage, EarlyView.
ABSTRACT Power lines in synthetic‐aperture radar (SAR) images are reflected as point signatures, which fluctuate annually in both the azimuth and range directions. A novel framework is proposed in this paper to evaluate the four‐dimensional dynamic status of power line sag using those point signatures in time‐series SAR images.
Sijie Ma, Tao Li, Mahdi Motagh, Yan Liu, Yangmao Wen   +4 more
wiley   +1 more source

An Adaptive Detection Algorithm for Non-Uniform Sea Clutter Background Targets Based on Iterative Weighting and Sample Purification. [PDF]

Sensors (Basel)
Su H, Zhang L, Zhao C, Li K.
europepmc   +1 more source

Doppler Lidar Based on Mode-Locked Semiconductor Lasers. [PDF]

Micromachines (Basel)
Chen Y, Zhou M, Ma W, Sun Z, Shi Y, Zou H, Zhang Y.   +6 more
europepmc   +1 more source

Reproductive Challenges of the Ageing Female: A Comprehensive Narrative Review

BJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.
ABSTRACT Changes in societal norms over the last few decades have resulted in novel family planning trends, notably delayed childbearing and increased maternal age at the birth of the first child. Despite advances in reproductive medicine, ageing poses significant challenges.
Sofia Bitzika, Meletios P. Nigdelis, Angelos Daniilidis, Erich‐Franz Solomayer, Irene Lambrinoudaki, Efstratios M. Kolibianakis, Dimitrios G. Goulis   +6 more
wiley   +1 more source

High precision measurements of the hyperfine structure of Vanadium ions in the ultraviolet range. [PDF]

Sci Rep
Karadimas A, Bettaney D, Campbell P, Cheal B, Chinthakayala S, de Groote R, Koszorús Á, Moore I, Raggio A, Warbinek J.   +9 more
europepmc   +1 more source

Association Between Lateral Placenta and Adverse Maternal and Perinatal Outcomes: A Systematic Review and Meta‐Analysis

BJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.
ABSTRACT Background Adverse maternal and perinatal outcomes such as preeclampsia, small‐for‐gestational age (SGA) and preterm birth remain major global health concerns. Beyond known high‐risk placental features, emerging evidence suggests lateral placenta to be associated with impaired uteroplacental blood flow resulting in placenta dysfunction and ...
Joseph Arkorful, Juliana Nyamson, Theophilus Adu‐Bredu, Kwame Adu‐Bonsaffoh, Joyce Browne, Albert D. Piersson, Kitty Bloemenkamp   +6 more
wiley   +1 more source

Evaluation of intraoperative color Doppler ultrasonography in the surgical evacuation of acute intracranial hematoma: a single-center study from Botswana. [PDF]

Front Surg
Zhang Y, Zhao J, Nfila B, Mufalali DK, Yin S.   +4 more
europepmc   +1 more source