نتایج جستجو برای: n13
تعداد نتایج: 189 فیلتر نتایج به سال:
We develop a new approach for a pre-disaster planning problem which consists in computing an optimal investment plan to strengthen a transportation network, given that a future disaster probabilistically destroys links in the network. We show how the problem can be formulated as a non-linear integer program and devise an AI algorithm to solve it. In particular, we introduce a new type of extrem...
Genetic Algorithm Combining Operation Tree (GAOT) was constructed to estimate the slump flow of high-performance concrete (HPC) by using seven concrete ingredients. HPC is a highly complex material; because modeling its behavior is extremely difficult, robust optimization techniques are required. GAOT is a type of evolutionary algorithm that simultaneously optimizes functions and their associat...
InAlN/GaN HEMTs have been proposed to provide higher polarization charges without the drawback of high strain [1]. Several groups have demonstrated devices based on InAlN/GaN ([2], [3]), with maximum current capabilities surpassing those of AlGaN/GaN structures. For further optimization a reliable simulation tool is needed. Our two-dimensional device simulator MINIMOS-NT is expanded by material...
Microglia, the immunocompetent cells of the central nervous system (CNS) and the brain’s own macrophages are the most motile cells in the CNS and those with highest plasticity, as they rapidly move their projections to actively screen their environment for any type of injury. Upon cell damage or infection, microglia respond quickly: they proliferate, change morphology from ramified to amoeboid ...
Lung cancer screening with a low radiation dose chest CT scan is the standard of care for screening-eligible individuals. The net benefit may be optimized by delivering high-quality care, capable maximizing and minimizing harms screening. Valid, feasible, relevant indicators quality lung help programs to evaluate their current practice develop improvement plans. purpose this project was related...
Crop wild relatives are plant taxa that the progenitors of commercial crops and an important genetic resource for improving these making them more resilient in face environmental change. They play role food security it is vital to maintain their natural diversity. However, crop-to-wild gene flow may reduce fitness threaten integrity species long run. Here we investigate purity European apple (M...
KAČÁNIOVÁ, M., SUDZINOVÁ, J., KADÁSI-HORÁKOVÁ, M., VALŠÍKOVÁ, M., KRÁČMAR, S.: The determination of microscopic fungi from Chestnut (Castanea sativa Mill.) fruits, leaves, crust and pollen. Acta univ. agric. et silvic. Mendel. Brun., 2010, LVIII, No. 4, pp. 73–78 The plant-microbial interactive relations with respect to determination of the mycofl ora of the Castanea sativa Mill. nuts, crust, l...
The monoclinic unit cell of Bis(hydrazineH) pyrazine-2,3-dicarboxylate contains singly protonated hydrazine cations and doubly deprotonated pyrazine-2,3-dicarboxylate anions. Atoms forming the pyrazine ring are coplanar (r.m.s. 0.0075(1) Å). Carboxylate groups form dihedral angles with the pyrazine ring of 1.7(2)° (C7/O1/O2) and 89.3(2)° (C8/O3/O4). An extended hydrogen bond network is observed...
We show that, for a positive integer r, every minimal 1-saturating set in PG(r − 1, 2) of size at least 11 36 2r + 3 either is a complete cap or can be obtained from a complete cap S by fixing some s ∈ S and replacing every point s ∈ S \ {s} by the third point on the line through s and s. Stated algebraically: if G is an elementary abelian 2-group and a set A ⊆ G \ {0} with |A| > 11 36 |G| + 3 ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید