Results 71 to 80 of about 3,298,007 (203)

Easier Ways to Prove Counting Hard: A Dichotomy for Generalized #SAT, Applied to Constraint Graphs [PDF]

open access: yes
To prove #P-hardness, a single-call reduction from #2SAT needs a clause gadget to have exactly the same number of solutions for all satisfying assignments - no matter how many and which literals satisfy the clause. In this paper, we relax this condition,
Hecher, Markus   +7 more
core   +1 more source

Radiation hardness qualification of PbWO4 scintillation crystals for the CMS Electromagnetic Calorimeter [PDF]

open access: yes, 2009
This is the Pre-print version of the Article. The official published version can be accessed from the link below - Copyright @ 2010 IOPEnsuring the radiation hardness of PbWO4 crystals was one of the main priorities during the construction of the ...
V. J. Smith   +999 more
core   +1 more source

Improving the methods for express evaluation of the quality of a road bed’s soil compaction during construction of automobile roads

open access: yesВестник СибАДИ, 2017
The authors have implemented a review and analysis of instruments and equipment for express evaluation of elasticity modulus, California bearing ratio and soil hardness, measured by the depth of penetration of the dynamic penetrometers’ cone from a ...
N. P. Aleksandrova   +2 more
doaj   +1 more source

Hardness of Dynamic Core and Truss Decompositions

open access: yes
The k-core of a graph is its maximal subgraph with minimum degree at least k, and the core value of a vertex u is the largest k for which u is contained in the k-core of the graph. Among cohesive subgraphs, k-core and its variants have received a lot of attention recently, particularly on dynamic graphs, as reported by Hanauer, Henzinger, and Schulz in
Y. S. Couto, Cristina G. Fernandes
openaire   +2 more sources

Rehabilitation of Knee Osteoarthritis with Conception of "Muscles and Bones, Arthralgia and Flaccidity, Asthenia and Sthenia, Dynamic and Static, Hardness and Softness"

open access: yes康复学报, 2021
The dysfunction of knee osteoarthritis(KOA)is characterized with"comorbidity of tendons with bones, coexistence of arthralgia and flaccidity, mixture of asthenia with sthenia, imbalance between dynamic and static statuses, and disorder between hardness ...
Jiemei GUO   +5 more
doaj  

Dynamic hardness testing challenges conventional tests

open access: yes, 1993
Bibliography: pages 69-71.The design and use of a portable dynamic hardness tester is described. The thesis begins with a description of the more common static hardness tests and the usefulness of such tests in industry.
Kohlhöfer, Walter
core   +1 more source

MODELING OF IMPACT CONTACT OF INDENTER AND NON-RIGID STEEL CONSTRUCTIONS DURING MEASURMENT OF HARDNESS

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2018
The problems of measuring hardness of constructions with insufficient rigidity by the dynamic indentation are discussed. The disadvantages of the existing dynamic hardness testers are described, the operation of which consists in impact indentation and ...
A. P. Kren   +2 more
doaj  

Static and dynamic hardness testing methods

open access: yes, 2015
U radu je dan pregled mehaničkih svojstava s posebnim naglaskom na svojstvo tvrdoće. Navedena je podjela metoda ispitivanja tvrdoće te specifičnosti statičkih i dinamičkih metoda ispitivanja tvrdoće.
Babić, Antonija
core  

Comparative Study on the Deterioration of Surface Physical and Mechanical Properties of Sandstone Cultural Heritage Under Different Dissolution Conditions

open access: yesApplied Sciences
In Southwest China’s high-temperature, humid, and rainy climate, ancient sandstone structures face significant deterioration due to acid rain and water accumulation, which cause dynamic and static dissolution.
Quansheng Lyu   +3 more
doaj   +1 more source

Kernel hardness and dough reological investigation on different wheat varieties [PDF]

open access: yes, 2013
The aim of this research was the investigation of winter wheat varieties, the kernel hardness and the dough features. We determined the kernel hardness with two dynamic methods. We measured the parameters of flour.
Szabó P. Balázs   +2 more
core   +1 more source

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