Results 31 to 40 of about 6,723,237 (315)

Virginia Cooperative Extension District Map

, 2021
Virginia Cooperative Extension District ...
Barlow, Zeke
core  

Landslide early warning for open-pit mine based on PCA-G1-ET

Gong-kuang zidonghua
The occurrence of open-pit mine landslides is influenced by multiple factors such as geological conditions, meteorological conditions, and human mining activities.
YUAN Liwei, PU Siwei, ZHONG Yang, YI Heng, LI Sumin   +4 more
doaj   +1 more source

Research on Coordinated Longitudinal–Vertical Control of Articulated Mining Trucks Using Extension Theory

Machines
This research addresses the coupling issue between speed tracking and vertical posture in articulated unmanned mining trucks within unstructured environments.
Xinying Li, Chongchong Li, Qing Ye, Renkai Ding   +3 more
doaj   +1 more source

Two-Dimensional Discommensurations: An Extension to McMillan’s Ginzburg–Landau Theory

Condensed Matter, 2023
Charge density waves (CDWs) profoundly affect the electronic properties of materials and have an intricate interplay with other collective states, like superconductivity and magnetism.
Lotte Mertens, Jeroen van den Brink, Jasper van Wezel   +2 more
doaj   +1 more source

Construction Risk Assessment of Tunnel Crossing Goaf Based on Analytic Hierarchy Process‐Extension Theory Model

Energy Science & Engineering
In the tunnel construction project, it is possible to encounter coal mine goaf. The goaf is often accompanied by a large number of toxic and harmful gases such as gas, carbon monoxide and carbon dioxide.
Chao Yuan, Lian‐xin Li, Xiao‐wei Su, Rong‐jie Du   +3 more
doaj   +1 more source

Development of an Improved Controller for Brushless DC Motor Drive Systems Combining Decision Tree and Sliding Mode Theory

Information
To enhance drive performance, this paper introduces an advanced speed controller architecture intended for a brushless DC motor (BLDCM) operating under field-oriented control (FOC).
Kuei-Hsiang Chao, Yu-Hong Guo, Chin-Tsung Hsieh   +2 more
doaj   +1 more source

New Power Quality Analysis Method Based on Chaos Synchronization and Extension Neural Network

Energies, 2014
A hybrid method comprising a chaos synchronization (CS)-based detection scheme and an Extension Neural Network (ENN) classification algorithm is proposed for power quality monitoring and analysis. The new method can detect minor changes in signals of the
Meng-Hui Wang, Her-Terng Yau
doaj   +1 more source

The Independence of Markov's Principle in Type Theory [PDF]

Logical Methods in Computer Science, 2017
In this paper, we show that Markov's principle is not derivable in dependent type theory with natural numbers and one universe. One way to prove this would be to remark that Markov's principle does not hold in a sheaf model of type theory over Cantor ...
Thierry Coquand, Bassel Mannaa
doaj   +1 more source

Early Body Mass Index z‐Score Change and Resolution of Severe Malnutrition in Children With Sickle Cell Anemia in a Low‐Income Setting: A Prospective Single‐Arm Extension Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell anemia (SCA) in low‐income settings are at risk of severe malnutrition, but optimal nutritional management has not been established. We evaluated an intensified ready‐to‐use therapeutic food (RUTF) regimen in children with persistent severe malnutrition after initial treatment and assessed whether early ...
Safiya Gambo, Shehu Umar Abdullahi, Hassan Adam Murtala, Halima Kabir, Khadija A. Shamsu, Sari A. Acra, Virginia A. Stallings, Mark Rodeghier, Michael R. DeBaun, Lauren J. Klein   +9 more
wiley   +1 more source

Application of the Extension Taguchi Method to Optimal Capability Planning of a Stand-alone Power System

Energies, 2016
An Extension Taguchi Method (ETM) is proposed on the optimized allocation of equipment capacity for solar cell power generation, wind power generation, full cells, electrolyzer and hydrogen tanks.
Meng-Hui Wang, Mei-Ling Huang, Zi-Yi Zhan, Chong-Jie Huang   +3 more
doaj   +1 more source