Results 41 to 50 of about 356,299 (186)

Optimization of Blasting‑Induced Roof Cutting Parameters in Key Stratum and Its Application in Gob‑Side Entry Retention Technology

Energy Science &Engineering, EarlyView.
This study addresses hard roof coal seam conditions by optimizing key stratum blasting‐cutting parameters through theoretical analysis, numerical simulation, and field tests. It proposes calculation methods for blast hole spacing and delay timing based on stress wave theory, controlling roadway deformation within 35 mm, thereby enhancing resource ...
Qiong Liu, Duanxiang Fu, Hongbin Li
wiley   +1 more source

Thermochronologic Constraints on the Extensional History of the Ibex Hills, Southeastern Black Mountains, Death Valley, California

Geological Journal, EarlyView.
A. Modeled T‐t paths for samples in the northern Ibex Hills, showing steady cooling throughout much of the Cenozoic, until rapid Miocene cooling. B. Weighted mean paths for each sample in this study. Note that all show a rapid cooling event at or just after 10 Ma, which is interpreted to represent exhumation as a result of regional extenstion ...
Zachariah D. Fleming
wiley   +1 more source

Linear System Identification and Control of a Low‐Cost High‐Performance Omnidirectional Marine Surface Vehicle for Swarming Applications

Journal of Field Robotics, EarlyView.
ABSTRACT Marine operations traditionally rely on human intervention, a costly and disruptive method. Autonomous surface vehicles (ASVs) offer a powerful alternative, capable of operating autonomously, for extended periods, and with various sensors for various missions.
Ayman El Qemmah, Gianni Cario, Alessandro Casavola, Marco Lupia, Francesco Tedesco   +4 more
wiley   +1 more source

Investigation of motion response suppression characteristics in floating platforms equipped with novel spiral side plates

Energy Science & Engineering
To enhance the stability of floating wind turbine platforms, this study combines the structural characteristics of helical side plates and proposes the installation of serrated helical side plates on Spar wind turbine platforms.
Yu Jing‐mei, Bai Chun‐long
doaj   +1 more source

Dynamic performance and heave suppression of FDPSO vessel based on model tests

Zhongguo Jianchuan Yanjiu
ObjectiveThis paper studies the dynamic performance of a new deep-water octagonal floating drilling production storage and offloading (FDPSO) unit under different heave plate arrangements to provide guidance for the design of an FDPSO in the South China ...
Wenhui XIE, Hui LI, Xiaokang DENG, Liqin LIU, Longfei XIAO   +4 more
doaj   +1 more source

The Big Picture: Religion and Global Comparative History

Journal of Religious History, EarlyView.
This article considers what a ‘big picture’ approach to global religious history might look like, and in particular the implications of deploying the comparative method across much larger stretches of time and space than historians normally attend to. It will begin by reflecting on the epistemological moods that have hindered this project to date, the ...
Alan Strathern
wiley   +1 more source

The Numerical Study of the Hydrodynamic Characteristics of Heave Plates with Salient Edges and Spatially Mismatched Arrangements

Journal of Marine Science and Engineering
This study investigates the hydrodynamic characteristics of single-layer heave plates with varying salient edges and triple-layer configurations with size mismatches under forced oscillation, utilizing 3D overset mesh numerical simulations.
Musa Liu, Bo Wang, Jiyun Du
doaj   +1 more source

Unsteady high-lift mechanisms from heaving flat plate simulations [PDF]

International Journal of Heat and Fluid Flow, 2017
Flapping animal flight is often modeled as a combined pitching and heaving motion in order to investigate the unsteady flow structures and resulting forces that could augment the animal's lift and propulsive capabilities. This work isolates the heaving motion of flapping flight in order to numerically investigate the flow physics at a Reynolds number ...
Franck, Jennifer A., Breuer, Kenneth
openaire   +2 more sources

Advanced imaging and multi‐omics to characterize cardiomyocyte ageing and its electrocardiographic imprint in PKP2 arrhythmogenic cardiomyopathy

The Journal of Physiology, EarlyView.
Abstract figure legend We used a murine model of cardiomyocyte‐specific conditional knockout of plakophilin 2 (PKP2cKO, middle panel). Using advanced imaging technology, we unveiled distinct hallmarks of premature ageing in PKP2cKO cardiomyocytes, including DNA damage and loss of repressed heterochromatin at the nuclear periphery, and mitochondrial ...
Giorgia Bertoli, Kavya Phadke, Alessandro Cospito, Xianming Lin, Marina Cerrone, Joanna Abi Rizk, Michael Cammer, Yan Deng, Joseph Sall, Mingliang Zhang, Feng‐Xia Liang, Irene de Lázaro, Mario Delmar   +12 more
wiley   +1 more source

Scale Effects on Heave Plates for Floating Offshore Wind Turbines

, 2018
International audienceAn essential aspect of experimental campaigns in ocean basins is the extrapolation of results to prototype scale. In the case of "spar" or semi-submersible platforms for floating wind turbines, it is customary to use heave plates ...
Bezunartea-Barrio, Ana, Lopez-Pavon, Carlos, Soriano-Gomez, Cristina, Enrique Molinelli-Fernandez, Cristina Soriano-Gomez, Oria-Escudero, Julio, Alvaro Valea-Peces, Valea-Peces, Alvaro, Souto-Iglesias, Antonio, Sergio Fernandez-Ruano, Moreno-Buron, Francisco, Julio Oria-Escudero, Antonio Souto-Iglesias, Rios-Tubio, Jose, Carlos Lopez-Pavon, Molinelli-Fernandez, Enrique, Ana Bezunartea-Barrio, Francisco Moreno-Buron, José Rios-Tubio, Adolfo Maron-Loureiro, Fernandez-Ruano, Sergio, Maron-Loureiro, Adolfo   +21 more
core   +2 more sources