Results 11 to 20 of about 13,129 (226)

Knots in Collapsible and Non-Collapsible Balls [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2013
We construct the first explicit example of a simplicial 3-ball $B_{15,66}$ that is not collapsible. It has only 15 vertices. We exhibit a second 3-ball $B_{12,38}$ with 12 vertices that is collapsible and not shellable, but evasive. Finally, we present the first explicit triangulation of a 3-sphere $S_{18, 125}$ (with only 18 vertices) that is not ...
Frank H. Lutz, Bruno Benedetti
openaire   +3 more sources

Analysis of the Mechanism of Ground Fissures in the Nairobi–Malaba Railway Rift Valley Area in Kenya

open access: yesFrontiers in Earth Science, 2022
During the rainy season from March to May 2018, four ground fissures were generated in the rift valley area along the first phase of the Nairobi–Malaba Railway in Kenya, among which the ground fissures B3 highway, DK76, and DK77 were larger in scale ...
Bing Hao   +6 more
doaj   +1 more source

Gravitational collapse: expanding and collapsing regions [PDF]

open access: yesGeneral Relativity and Gravitation, 2010
12 pages, 4 figures, accepted for publication in Gen.
Sharif, M., Abbas, G.
openaire   +2 more sources

Effect of Adding Fine Gravel and Cement on Settlement of Sabkha Soil [PDF]

open access: yesEngineering and Technology Journal, 2012
Sabkha soil is one of the many types of collapsible soils and in turn is on of the many types of problematic soils. This soil is totally having good engineering properties when dry ,i.e ,moderately bearing capacity with low settlement .But once are ...
Hassan Obaid Abbas
doaj   +1 more source

Timeline to collapse  

open access: yes, 2022
Contemporary rates of biodiversity decline emphasize the need for reliable ecological forecasting, but cur-rent methods vary in their ability to predict the declines of real-world populations. Acknowledging that stress acts at the individual level, and that it is the sum of these individual-level effects which drives popu-lations to collapse, shifts ...
Francesco Cerini   +2 more
openaire   +1 more source

Feature Collapse

open access: yesCoRR, 2023
We formalize and study a phenomenon called feature collapse that makes precise the intuitive idea that entities playing a similar role in a learning task receive similar representations. As feature collapse requires a notion of task, we leverage a simple but prototypical NLP task to study it.
Thomas Laurent 0001   +2 more
openaire   +3 more sources

GEOPOL®. The innovated environment friendly inorganic binder system [PDF]

open access: yes, 2019
This paper deals with the complete technology of inorganic geopolymer binder system GEOPOL® which is a result of long term research and development. The objective of this paper is to provide a theoretical and practical overview of the GEOPOL® binder ...
Burian, Alois   +2 more
core   +1 more source

Vertex decompositions of two-dimensional complexes and graphs [PDF]

open access: yes, 2011
We investigate families of two-dimensional simplicial complexes defined in terms of vertex decompositions. They include nonevasive complexes, strongly collapsible complexes of Barmak and Miniam and analogues of 2-trees of Harary and Palmer.
Adamaszek, Michal
core   +3 more sources

Obstructive sleep apnea syndrome and perioperative complications: a systematic review of the literature. [PDF]

open access: yes, 2012
Obstructive sleep apnea syndrome (OSAS) is a common sleep related breathing disorder. Its prevalence is estimated to be between 2% and 25% in the general population.
Doghramji, MD, Karl   +2 more
core   +2 more sources

Application of sand drain immersion tests on collapsible loess

open access: yesYantu gongcheng xuebao, 2018
With the further development of China's western development strategy, more and more projects are constructed in collapsible loess area. The loess area is characterized by wide distribution, large thickness and different strong collapsibilities and ...
WANG Yong-xin 1, SHAO Sheng-jun 1,2, HAN Chang-ling 3, LI Jun 1
doaj   +1 more source

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