Results 31 to 40 of about 97,347 (130)

Log-concave polynomials II: high-dimensional walks and an FPRAS for counting bases of a matroid [PDF]

open access: yesSymposium on the Theory of Computing, 2018
We design an FPRAS to count the number of bases of any matroid given by an independent set oracle, and to estimate the partition function of the random cluster model of any matroid in the regime where ...
Nima Anari   +3 more
semanticscholar   +1 more source

Physico-chemical characterization of cupola slag: Enhancing its utility in construction

open access: yesAIP Advances
Cupola slag is a waste material of the steel and iron industries. Its composition is determined by the cupola furnace and other elements used in steel and iron manufacturing.
S. Meshram   +5 more
semanticscholar   +1 more source

The Inter‐Cratonic Neoproterozoic Katangan Basin of Central Africa: Rift Basin Formation, Orogenic Inversion and Potential Fluid Pathways

open access: yesTectonics, Volume 44, Issue 7, July 2025.
Abstract The tectono‐stratigraphic development of continental basins is critical to an understanding of continental tectonics and the formation of metal deposits. The Neoproterozoic, inter‐cratonic Katangan copper basin of Central Africa records a tectono‐stratigraphic evolution and the generation of potential metal transporting fluid pathways ...
M. C. Daly   +3 more
wiley   +1 more source

Process Parameters and Tool Design in Friction Stir Extrusion: A Sustainable Recycling Technique

open access: yesEngineering Reports, Volume 7, Issue 1, January 2025.
Friction stir extrusion is a solid‐state recycling technique based on severe plastic deformation supported by frictional heat. The paper considers the macrostructural, microstructural, and mechanical properties of the products and investigates different tool, mold, and machine designs.
Mostafa Akbari   +5 more
wiley   +1 more source

Konkavna kupola nad hendekagonalnom osnovom [PDF]

open access: yes, 2008
Predmet istraživanja je konstruktivno geometrijska geneza novih geometrijskih tela, kupola sa konkavnim poliedarskim površima, koje bi korišćenjem pravilnih n-tougaonika u svojoj mreži, obrazovale zatvorene prostorne celine.
Mišić, Slobodan, Obradović, Marija
core  

The Relationship Between Women in Parliament and Globalization

open access: yes, 2022
I examine the relationship between women in national parliaments and globalization. Existing scholarship has thoroughly examined how globalization affects women’s representation but there is a distinct lack of research examining the obverse relationship.
Morrell, Lilian A.
core  

The Curvilinear Relationship between Political Terror and Internal Armed Conflict

open access: yes, 2022
I examine the relationship between political terror and the annual incidence of internal armed conflict. Studies have found that other factors associated with violence have a curvilinear relationship to internal conflict, including regime type, GDP, and ...
Morrell, Lilian A.
core  

Prevođenje konkavnih kupola druge vrste u tridimenzionalne konstruktivne sisteme – prostorne rešetke [PDF]

open access: yes, 2008
Cilj istraživanja ovog rada je bio da se iznađu geometrijska rešenja za formiranje prostornih rešetki nad pravilnim poligonalnim osnovama, tako da se postigne prostorna struktura koja ispunjava zahteve rigidnosti datog sklopa, po osnovi geometrijske ...
Mišić, Slobodan, Obradović, Marija
core  

Mesosemia cippus Hewitson 1859

open access: yes, 2018
Mesosemia cippus Hewitson, 1859 Natural history. This species is the most common Mesosemia at the Colombian study site, recolonizing the site each year after being absent for two to three months during the dry season.
Nielsen, Gregory J., Kaminski, Lucas A.
core   +1 more source

The Structural Transformation of Concave Cupolae of Fourth Sort Using Different Variants of Constructive Procedure, 4th International Scientific Conference on Geometry and Graphics [PDF]

open access: yes, 2014
Concave Cupolae of fourth sort (CC IV) are polyhedra which lateral surface is created by folding a quadruple strip of equilateral triangles, while the bases are regular polygons. The unit cell that forms the deltahedral lateral surface by radial sequenceing around the axis of the solid is composed of two spatial hexahedrals. These unit cells are linked
Mišić, Slobodan   +2 more
openaire  

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