Results 41 to 50 of about 184,763 (162)

Experimental Investigation on the Deformation Characteristics and Mechanical Behaviors of Tectonic Coal under Complex Unloading Confining Pressure

Energies, 2023
Conventional and cyclic unloading tests with different unloading rates were conducted to study the influences of unloading patterns and rates on the deformation characteristics and mechanical properties of tectonic coal.
Deyi Gao, Shuxun Sang, Shiqi Liu, Wenkai Wang, Hang Mo   +4 more
doaj   +1 more source

On the Representational Bias in Process Mining [PDF]

2011 IEEE 20th International Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises, 2011
Process mining serves a bridge between data mining and business process modeling. The goal is to extract process related knowledge from event data stored in information systems. One of the most challenging process mining tasks is process discovery, i.e., the automatic construction of process models from raw event logs. Today there are dozens of process
openaire   +2 more sources

Similarity and Homogeneity of Climate Change in Local Destinations: A Globally Reproducible Approach from Slovakia

World
In terms of climate change, while tourism’s natural resources may be considered climate vulnerable, a large part of tourism’s primary industries are high carbon consumers.
Csaba Sidor, Branislav Kršák, Ľubomír Štrba   +2 more
doaj   +1 more source

Deformation investigation of the shell of rotary kiln using terrestrial laser scanning (TLS) measurement

Metalurgija, 2019
For the correct operation of the rotary kiln it is necessary to ensure that basic geometric conditions are fulfilled. For regular check the geodetic measurements are used.
L'. Kovanič, P. Blišťan, V. Zelizňakova, J. Palkova, J. Baulovič   +4 more
doaj  

Critical Distance of the Seismic Waves’ Impact in Disintegration of Rock Blasting

Shock and Vibration, 2019
The presented paper deals with attenuation of seismic waves, which depends on the degree of disintegration of the rock environment in which seismic waves are propagated due to the explosion of explosive charges during blasting operations. Measurements of
Dušan Kudelas, Blažej Pandula, Michal Cehlár, Marcela Taušová, Ján Koščo   +4 more
doaj   +1 more source

Probabilistic Assessment of Downtime-Related Energy-Service Unavailability, Production Loss and Economic Impact in Continuous Material-Handling Systems

Applied Sciences
Continuous industrial material-handling systems are operationally and energy-intensive technological structures in which downtime affecting one equipment group can reduce the availability of the entire production chain.
Maksym Mykhei, Daniela Marasová, Bohdana Bobinics, Daniela Marasová, Marcela Taušová, Dušan Kudelas   +5 more
doaj   +1 more source

Influence of additives on decrease of temperature of slag flow from energy coal in wet bottom boiler

Metalurgija, 2017
This paper describes the features of the energy coal combusted in a power plant, its impact on energy production, while the possibility of using natural and secondary raw materials to modify the properties of energy coal. All selected types of additives (
T. Bakalár, H. Pavolová, S. Khouri, I. Pristášová   +3 more
doaj  

Method of determining the essential geometric characteristics of the metal foam structure

Metalurgija, 2019
The paper deals with the description of method, proposed by authors, that determining the essential geometric characteristics of the metal foam structure with using of the analytical imaging software. Method use economically available technical apparatus
M. Beer, R. Rybar, D. Kudelas
doaj  

Biochemical oxygen demand in EU rivers: a cross-country regression analysis of energy systems, environmental pressures, and socio-economic factors

Frontiers in Environmental Science
IntroductionMaintaining river water quality remains a key environmental challenge, particularly in the context of pressures from economic activity, energy systems, and resource use.
Samer Khouri, Viera Ivanková, Marcela Taušová, Michal Cehlár, Zuzana Šimková, Alžbeta Gavalcová   +5 more
doaj   +1 more source

Application of a SEM-EDS-Based Automated Process Mineralogy Analyzing System on the Occurrence State of Silver in Copper Ore Flotation Tailings

Yankuang ceshi
The silver occurrence state and process mineralogical characteristics are critical to its beneficiation process and recovery indicators, which can be used for assisting in process development, plant design, and improvement of silver recovery. In order to
Ligang WEN, Muxin JIA, Jianjun ZHAO, Qing WANG, Qiang FU   +4 more
doaj   +1 more source