Results 251 to 260 of about 4,736,339 (290)
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1993
A vital component in the design of a new underground mine or other subsurface facility is the quantified planning of the distribution of airflows, together with the locations and duties of fans and other ventilation controls required to achieve acceptable environmental conditions throughout the system.
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A vital component in the design of a new underground mine or other subsurface facility is the quantified planning of the distribution of airflows, together with the locations and duties of fans and other ventilation controls required to achieve acceptable environmental conditions throughout the system.
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2017
Ventilation network analysis deals with complex working procedures to calculate the air currents flowing in the various meshes or branches of a mine network. It involves mathematical method of analyzing mine resistance to carry out ventilation planning, management, and control.
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Ventilation network analysis deals with complex working procedures to calculate the air currents flowing in the various meshes or branches of a mine network. It involves mathematical method of analyzing mine resistance to carry out ventilation planning, management, and control.
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GIS-based mine ventilation network and safety analysis
IEEE International IEEE International IEEE International Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004, 2004The paper constructed the mine ventilation network model using the powerful function of attributes management, display visually and spatial analysis of GIS based on the character study of GIS and mine ventilation network. The mine ventilation network model we put forward in this paper is a COM-based extension of the Geo-network of ArcInfo.
Huide Liu, Dabing Yang
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Analysis of Mine Ventilation Network Based on Harmony Search
2010 International Conference on Machine Vision and Human-machine Interface, 2010Based on the air distribution request of the mine ventilation network, carries on the optimized computation to the mine ventilation system network, to find the global optimal solution for a mine ventilation network under given network topology and airway characteristics.
Jinxue Sui +3 more
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The Signaling Network Resulting in Ventilator-induced Diaphragm Dysfunction
American Journal of Respiratory Cell and Molecular Biology, 2018Abstract Mechanical ventilation (MV) is a life-saving measure for those incapable of adequately ventilating or oxygenating without assistance. Unfortunately, even brief periods of MV result in diaphragm weakness (i.e., ventilator-induced diaphragm dysfunction [VIDD]) that may render it difficult to wean the ventilator. Prolonged MV is
Huibin, Tang, Joseph B, Shrager
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International Conference on Transportation Engineering 2009, 2009
Presently ventilation problems are becoming the key problems restricting the development of long highway tunnels greatly. Some long highway tunnels have considerable complicated structures of ventilation network, thus to calculate the ventilation system with the traditional ventilation analytical method becomes difficult.
Hong-Gang Wang +3 more
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Presently ventilation problems are becoming the key problems restricting the development of long highway tunnels greatly. Some long highway tunnels have considerable complicated structures of ventilation network, thus to calculate the ventilation system with the traditional ventilation analytical method becomes difficult.
Hong-Gang Wang +3 more
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Characteristics of multiple-fan ventilation networks
International Journal of Mining Engineering, 1984The definitions of system pressure loss (mine head) and system resistance, which are traditionally associated with single-fan networks, are applied to multiple-fan ventilation networks. The system characteristics, relations among air power, pressure loss, air quantity and resistance, are analysed by introducing the concept of subsystems.
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Ventilation Optimization for Multi-Level Mining Based on Global Ventilation Network Simulation
Applied Mechanics and Materials, 2013Multi-level mining caused confusion of air return of overall ventilation system in Jinshandian Iron Mine. Based on fluid simulation software ANSYS-CFX, a modeling method of replacing fans with negative pressure section was proposed to build accurate 3D global model of mine ventilation network. Four feasible ventilation network optimization schemes were
Qi Hu Wang, Yi Cheng Ye, Tao Lv
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Ventilation Flow Structure and High-Precision Ventilation Network Model
2016Understanding of ventilation flow structure is important to utilize the cross-ventilation for improving indoor environment in hot and humid rooms. The pressure loss at the opening depends on the contraction of ventilation air flow and on static pressure loss consumes for the production of turbulent kinetic energy.
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Gated Recurrent Neural Networks for Accelerated Ventilation MRI
2019Thanks to recent advancements of specific acquisition methods and post-processing, proton Magnetic Resonance Imaging became an alternative imaging modality for detecting and monitoring chronic pulmonary disorders. Currently, ventilation maps of the lung are calculated from time-resolved image series which are acquired under free breathing.
Robin Sandkühler +8 more
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