Results 31 to 40 of about 9,379,062 (222)

Objective Bayesian analysis for autoregressive models with nugget effects

open access: yesJournal of Multivariate Analysis, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Cuirong Ren, Dongchu Sun
openaire   +2 more sources

Mechanical characterisation and modelling of resistance welding [PDF]

open access: yes, 2010
Resistance welding is used very extensively in industry for a wide range of applications. Knowledge and measurement of the dynamic characteristics of resistance welding equipment is important in the design of the equipment and in optimization of ...
Van Rymenant, Patrick
core   +4 more sources

Modeling of zonal anisotropic variograms

open access: yesLietuvos Matematikos Rinkinys, 2005
Most standard methods of geostatistical analysis are built upon the basic assumption of isotropy. However, spatial data in most cases are not isotropic. In practice typically we find data with zonal anisotropy.
Lina Budrikaitė
doaj   +3 more sources

Separation of iron-nickel alloy nugget from limonitic laterite ore using self-reduction [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2018
To efficiently extract nickel from low grade limonitic laterite ore, a separation method of iron-nickel alloy nugget by selfreduction of coal composite limonitic laterite ore briquette was investigated.
Ju P., Ryom K., Hong K.
doaj   +1 more source

Resistance ceramic-filled annular welding of DP980 high-strength steel

open access: yesMaterials & Design, 2019
The extensive application of automobile high-strength steel requires high welding strength. A composite ceramic-filled annular electrode is designed based on the concept of controlling heat distribution and changing the nugget-growth mode.
Daxin Ren   +4 more
doaj   +1 more source

Sampling and analysis of chemical element concentration distribution in rock units and orebodies [PDF]

open access: yesNonlinear Processes in Geophysics, 2012
Existing sampling techniques applied within known orebodies, such as sampling along mining drifts, yield element concentration values for larger blocks of ore if they are extended into their surroundings.
F. P. Agterberg
doaj   +1 more source

DEFINITION AND DESCRIPTION OF THE OIL AND GAS RESERVOIR CONNECTIVITY COEFFICIENT

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2020
The relevance of the research is caused by the need in quantitative evaluation of reservoir connectivity of models for classifying realizations in multivariant modelling and optimization of selection of methods and parameters for reservoir geomodelling ...
Victor L. Popov   +2 more
doaj   +1 more source

Effect of temperature patterns on iron nugget formation in fluxless processing of titanomagnetite

open access: yesScientific Reports, 2022
AbstractThe technology used to process titanomagnetite is currently limited to the rotary kiln-electric furnace. Other techniques are being developed, including the separation of iron in the form of iron nugget from the reduction of titanomagnetite with coal without any flux addition.
Zulfiadi Zulhan   +3 more
openaire   +3 more sources

Optimization of AZ61 Mg Alloy Resistance Spot Welding using Response Surface Method [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2019
The purpose of this study is to investigate the effect of resistance spot welding (RSW) parameters on nugget size and ultimate strength of Magnesium alloy sheets AZ61 under tensile-shear test.
Afshin Lotfi   +2 more
doaj  

Kualitas dan nilai ekonomis nugget pada berbagai proporsi penggantian daging ayam dengan tahu

open access: yesJurnal Ilmu Peternakan dan Veteriner Tropis, 2022
The  aim  of  the  research  was  observing  the  effect  of  substituting  chicken  meat  as  main  material in nugget production with tofu on nugget quality and its production cost.
Ira SK Puarada   +2 more
doaj  

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