نتایج جستجو برای: vertical diametric strain
تعداد نتایج: 311108 فیلتر نتایج به سال:
the safety of buried pipes under repeated load has been a challenging task in geotechnical engineering. in this paper artificial neural network and regression model for predicting the vertical deformation of high-density polyethylene (hdpe), small diameter flexible pipes buried in reinforced trenches, which were subjected to repeated loadings to simulate the heavy vehicle loads, are proposed. t...
The Bernoulli effect may result in eruption of a vulnerable carotid atheroma, causing a stroke. We measured electrocardiography (ECG)-registered QRS intra-stenotic blood velocity and atheroma strain dynamics in carotid artery walls using ultrasonic tissue Doppler methods, providing displacement and time resolutions of 0.1 μm and 3.7 ms. Of 22 arteries, 1 had a peak systolic velocity (PSV) >280 ...
Two different designs, A and B, with notable different geometrical parameters, were compared. The S-Stent was simulated to expand from its as cut configuration on a hyperelastic balloon model under physiological deployment pressure (below 18 atm). The numerical simulation results reveal that stent B, at diametric expansion of 3.3mm OD, experiences a 50.5% reduction in plastic strain and 10% les...
BACKGROUND Supratentorial diffuse low-grade gliomas present a slow macroscopic tumor growth that can be quantified through the measurement of their velocity of diametric expansion. We assessed whether spontaneous velocity of diametric expansion can predict long-term outcomes as a categorical variable and as a continuous predictor. METHODS A total of 407 adult patients with newly diagnosed sup...
http://www.univie.ac.at/constructivism/journal/11/1/148.werner « 13 » These assumptions of separation and connection provide an illustrative example of the relative differences between diametric and concentric spaces as spatial frames for cognition. diametric and concentric structures are necessary spatialrelational conditions for framing the two different constructions of Gilligan’s moral reas...
BACKGROUND We explored whether spontaneous imaging tumor growth (estimated by the velocity of diametric expansion) and isocitrate dehydrogenase 1 (IDH1) mutation (estimated by IDH1 immunoexpression) were independent predictors of long-term outcomes of diffuse low-grade gliomas in adults. METHODS One hundred thirty-one adult patients with newly diagnosed supratentorial diffuse low-grade glioma...
Let g be a diametric gauge over a metric space (X, p). It is proved, in this paper, that the upper gauge density D (A, x) = 0 for almost all points of the complement of A provided that A is in a certain family which contains all Borel sets of finite measure. Also, a relation between conditions for a diametric gauge and certain regularity conditions is given.
A graph G with diameter k is said to be goal-minimally k-diametric if for every edge uv of G distance dG−uv(x, y) > k if and only if {x, y} = {u, v}. It is rather difficult to construct such graphs. In this paper we give examples of such graphs for several small values of k. In particular, we present infinitely many goal-minimally 4-diametric graphs and 6diametric graphs.
Background and objective: Due to the fact that the desert areas of our country experience devastating floods in autumn and winter, and heavy machinery inevitably need transportation roads for relief and reconstruction in flooded areas. Pavement failure with saturated layers due to floods is considered. Method: In this research, Everstress software has been used for modeling and fine sand with 3...
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