Results 91 to 100 of about 7,244 (206)

A discrimination method of mine water inrush source

open access: yesGong-kuang zidonghua, 2020
For problems of existing discrimination methods of water inrush source based on hydrochemical characteristics such as complex process, difficulty to distinguish single water inrush point, neglecting the correlation among hydrochemical characteristics, large calculation amount and so on, a discrimination method of mine water inrush source based on Bayes-
JIANG Zihao   +4 more
openaire   +1 more source

Water Inrush Characteristics with Roadway Excavation Approaching to Fault

open access: yesTELKOMNIKA (Telecommunication Computing Electronics and Control), 2012
Water inrush disaster is an important factor in restricting safe production of the coal mine. Taking the roadway in seam in Danhou Coal Mine, as the engineering background, according to the spatial relationship of the roadway, the impermeable layer, the fault and the loading conditions, the fault activation mechanical model under the roadway excavation
Shuren Wang, Hu Wang Hu Wang
openaire   +2 more sources

Study on the variation of the permeability coefficient of soil–rock mixtures in fault zones under different stress states

open access: yesDeep Underground Science and Engineering, Volume 4, Issue 2, Page 210-221, June 2025.
A study is carried out on the variation of the permeability coefficient of soil–rock mixtures in fault zones under different stress states. Abstract As the first gold mine discovered at the sea in China and the only coastal gold mine currently mined there, Sanshandao Gold Mine faces unique challenges.
Wenhui Tan   +3 more
wiley   +1 more source

LHC technological challenges: use of digital signal processors in the power converters for the LHC particle accelerator [PDF]

open access: yes, 2008
The Large Hadron Collider (LHC) is the next accelerator being constructed on the CERN site. It will be installed in a 27 km circumference tunnel, about 100 m underground.
Schmickler, Hermann
core   +1 more source

Salinity tolerance and volume regulation in four species of polychaetes [PDF]

open access: yes, 1962
The present investigation was undertaken to understand the role of osmotic regulation in the distribution of four species of polychaetes, viz., Glycera embranchiata, Onuphis emnita, Loimia medusa and Clymene insecta in the brackish-water zones of Adyar ...
Krishnamoorthi, B
core  

Numerical simulation of flow over a rough bed [PDF]

open access: yes, 2004
This paper presents results of a direct numerical simulation (DNS) of turbulent flow over the rough bed of an open channel. We consider a hexagonal arrangement of spheres on the channel bed.
G. Salton   +4 more
core   +8 more sources

A quantitative method for water inrush risk from fractured rocks based on nonlinear seepage theory

open access: yesMeitan xuebao
Fractured rock mass is one of the main water inrush channels. Groundwater exhibits nonlinear seepage characteristics in fractured rocks when water inrush occurs. However, the research on the risk of water inrush from the fractured rocks mainly focuses on
Weitao LIU   +5 more
doaj   +1 more source

Inrush Current Measurement in the Water Pumping Station

open access: yesInternational Research Journal of Multidisciplinary Scope
Municipal water pumps use an induction motor with a Fluke 434-II power quality analyzer to measure inrush current. To pump water from the river to the reserve tank, they use two parallel 120 HP motor pumps and two parallel 180 HP motor pumps to deliver water from the reserve tank to overhead tanks distributed across the municipal areas.
null Sabarivelu V   +3 more
openaire   +1 more source

Effects of Initial Porosity and Water Pressure on Seepage-Erosion Properties of Water Inrush in Completely Weathered Granite

open access: yesGeofluids, 2018
In order to investigate the water inrush mechanism in completely weathered granite, a large-scale triaxial testing system is designed and manufactured, which can induce the mass transfer and monitor the flow properties.
Jinquan Liu   +5 more
doaj   +1 more source

Grey-box Modelling of a Household Refrigeration Unit Using Time Series Data in Application to Demand Side Management [PDF]

open access: yes, 2015
This paper describes the application of stochastic grey-box modeling to identify electrical power consumption-to-temperature models of a domestic freezer using experimental measurements.
Bindner, Henrik   +5 more
core   +2 more sources

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