Results 61 to 70 of about 676,557 (290)

Appropriate Ventilation System for Control of Methane in Tunnels during Construction (A Case Study: Alborz Tunnel [PDF]

open access: yes
Background & Objectives: Different methods can be used for ventilation of tunnel during construction. Each method has advantages, limitations, and disadvantages that should be considered in selection of methods.
مختاری, سیداحمد   +5 more
core  

β‐Catenin/c‐Myc Axis Modulates Autophagy Response to Different Ammonia Concentrations

open access: yesAdvanced Biology, Volume 9, Issue 3, March 2025.
Ammonia, detoxified by the liver into urea and glutamine, impacts autophagy differently at varying levels. Low ammonia activates autophagy via c‐Myc and β‐catenin, while high levels suppress it. Using Huh7 cells and Spf‐ash mice, c‐Myc's role in cytoprotective autophagy is revealed, offering insights into hyperammonemia and potential therapeutic ...
S. Sergio   +11 more
wiley   +1 more source

Three coal mine ventilation studies using sulfur hexafluoride tracer gas [PDF]

open access: yes
"This report describes three coal mine ventilation studies by the Bureau of Mines in which sulfur hexafluoride (sf6) was used as a tracer gas. One of these studies was conducted to determine air movement and leakage in a sealed area.

core  

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran   +6 more
wiley   +1 more source

Coal Mine Face Area Ventilation

open access: yes, 1983
One of the most difficult places to ventilate in any mine is the working face area of an advancing mine heading. With an ever changing configuration, continual modification and extension to the ventilation system is necessary to maintain an adequate ...
Gillies, Stewart
core   +1 more source

Development and application of a mine ventilation resistance measurement data processing system

open access: yesGong-kuang zidonghua
Mine ventilation resistance measurement data are an important basis for regulating air volume and optimizing the ventilation system. To address the problems of low efficiency and high operational complexity in traditional mine ventilation resistance data
CHENG Lei, GU Shunhao
doaj   +1 more source

On the Various Systems of Ventilation of Mines [PDF]

open access: yesProceedings of the Institution of Mechanical Engineers
n ...
openaire   +2 more sources

Ventilation Officers or Mine Managers? Who should Ultimately be Responsible for Mine Ventilation? A comparison between Western Australia and Queensland

open access: yes, 2011
There is still debate about who should ultimately be responsible for the ventilation system in an underground mine. The Queensland Coal Mining Safety and Health Regulation 2001, states that a dedicated ventilation officer is the person, while Western ...
Halim, Adrian, Halim, Adrianus
core  

Architecture‐Driven Sensor Stability in Weft‐Knitted Engineering Textiles

open access: yesAdvanced Engineering Materials, EarlyView.
Textile‐integrated sensor architectures are systematically compared to evaluate their electromechanical behavior under combined mechanical and environmental loading. Pocket‐based integration exhibits stable and reproducible signals, whereas tunnel‐based routing shows higher sensitivity accompanied by increased variability.
Adnan Maroof Khan   +5 more
wiley   +1 more source

Research on Intelligent Ventilation System of Metal Mine Based on Real-Time Sensing Airflow Parameters with a Global Scheme

open access: yesApplied Sciences
In ventilation systems of metal mines, the real-time measurement of the airflow field and a reduction in pollutants are necessary for clean environmental management and human health.
Yin Chen   +6 more
doaj   +1 more source

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