Results 21 to 30 of about 4,491 (181)

Energy transport characteristics of converging Richtmyer–Meshkov instability

AIP Advances, 2020
In this paper, the Richtmyer–Meshkov (RM) instability in spherical and cylindrical converging geometries with a Mach number of about 1.5 is investigated by using the direct numerical simulation method.
Yaowei Fu, Changping Yu, Xinliang Li
doaj   +1 more source

Local health department engagement with workplaces during the COVID-19 pandemic—Examining barriers of and facilitators to outbreak investigation and mitigation

Frontiers in Public Health, 2023
ObjectivesTo document local health department (LHD) COVID-19 prevention or mitigation activities at workplaces in the United States and identify facilitators for and barriers to these efforts.MethodsWe conducted a web-based, cross-sectional national ...
Tessa Bonney, Michael P. Grant
doaj   +1 more source

Left-Handedness Among Orthopaedic Surgeons and Trainees

JBJS Open Access, 2020
Background:. The impact of left-handedness on orthopaedic surgeons and trainees has not been well described. We investigated the prevalence and perceived impact of left-handedness among orthopaedic surgeons and trainees. Methods:. We distributed a survey
Samir Sabharwal, MD, MPH, James S. MacKenzie, MD, Robert S. Sterling, MD, FAOA, James R. Ficke, MD, FAOA, Dawn M. LaPorte, MD, FAOA   +4 more
doaj   +1 more source

NAVIGATION SYSTEM FOR LHD MACHINES

IFAC Proceedings Volumes, 1995
Load, haul and dump (LHD) machines are used in mines to carry ore from loading point to dumping point. This paper presents techniques developed to automatize the work of LHD machines. The work concentrates on navigation of the .machines using dead reckoning, artificial beacons and distance measurement from vehicle to tunnel walls.
Lehtinen Hannu, Mäkelä Hannu, Koskinen Kari, Rintanen Kari   +3 more
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Practice patterns of pulmonary hypertension secondary to left heart disease among pediatric pulmonary hypertension providers

Pulmonary Circulation, 2021
Development of pulmonary hypertension (PH) in patients with left side heart disease (LHD) is a predictor of poor prognosis. The use of pulmonary vasodilators in PH associated with LHD (PH-LHD) is controversial.
Hythem Nawaytou, Jeffrey R. Fineman, Shahin Moledina, Dunbar Ivy, Steven H. Abman, Maria J. Del Cerro   +5 more
doaj   +1 more source

Research Status and Development Trend of Underground Intelligent Load-Haul-Dump Vehicle—A Comprehensive Review

Applied Sciences, 2022
The underground intelligent load-haul-dump vehicle (LHD) is a product of the deep integration of traditional LHD with information network technology, automatic controlling and artificial intelligence technology.
Wei Xiao, Mingxia Liu, Xubing Chen
doaj   +1 more source

Bucket Trajectory Optimization under the Automatic Scooping of LHD

Energies, 2019
We propose an optimal planning scheme of the bucket trajectory in the LHD (Load-Haul-Dump) automatic shoveling system to improve the effectiveness of the scooping operation. The research involves simulation of four typical shoveling methods, optimization
Yu Meng, Huazhen Fang, Guodong Liang, Qing Gu, Li Liu   +4 more
doaj   +1 more source

A new dynamic subgrid-scale model using artificial neural network for compressible flow

Theoretical and Applied Mechanics Letters, 2022
The subgrid-scale (SGS) kinetic energy has been used to predict the SGS stress in compressible flow and it was resolved through the SGS kinetic energy transport equation in past studies.
Han Qi, Xinliang Li, Ning Luo, Changping Yu   +3 more
doaj   +1 more source

Fatty acid-binding protein 5 aggravates pulmonary artery fibrosis in pulmonary hypertension secondary to left heart disease via activating wnt/β-catenin pathway

Journal of Advanced Research, 2022
Introduction: Pulmonary hypertension secondary to left heart disease (PH-LHD) is a common and fatal disease. However, no effective therapeutic targets have been identified.
Qian Lei, Zhimin Yu, Hang Li, Jun Cheng, Yanggan Wang   +4 more
doaj   +1 more source

Digital-LHD: LHD Visualizer for Head-Mounted Display Systems

Digital-LHD: LHD Visualizer for Head-Mounted Display Systems
We developed a virtual reality visualization program, Digital-LHD, for modern Head-Mounted Display (HMD) systems. Digital-LHD provides an immersive environment for the interactive visualization of plasma data related to the Large Helical Device (LHD). Its predecessor, Virtual-LHD, was developed for CAVE systems, which were limited in accessibility due ...
OHNO, Nobuaki, TAKANO, Fuko, YAMANAKA, Ami, OHTANI, Hiroaki, KAGEYAMA, Akira   +4 more
openaire   +2 more sources