نتایج جستجو برای: b4c bn
تعداد نتایج: 8878 فیلتر نتایج به سال:
Bayesian Networks (BN) provides a robust probabilistic method of reasoning under uncertainty. They have been successfully applied in a variety of real-world tasks but they have received little attention in the area of load-frequency control (LFC). In practice, LFC systems use proportional-integral controllers. However since these controllers are designed using a linear model, the nonlinearities...
Denote by Prop(Bn,BN ) the space of proper holomorphic maps from the unit ball Bn ⊂ Cn into the unit ball BN ⊂ CN , Propk(B,B ) := Prop(Bn,BN ) ∩ Ck(Bn) and Rat(Bn,BN ) := Prop(Bn,BN ) ∩ {rational maps}. We recall that F,G ∈ Rat(Bn ,BN ) are said to be equivalent if there are automorphisms σ ∈ Aut(Bn) and τ ∈ Aut(BN ) such that F = τ ◦ G ◦ σ. In this paper, we study the classification problem f...
OBJECTIVE To review the evidence for the validity and utility of subtyping bulimia nervosa (BN) into a purging (BN-P) and a nonpurging subtype (BN-NP), and of distinguishing BN-NP from binge eating disorder (BED), by comparing course, complications, and treatment. METHOD A literature search of psychiatry databases for studies published in peer-reviewed journals that used the DSM-definitions o...
To understand the genetic basis of pathways involved in the control of breathing, a large scale, high-throughput study using chromosomal substitution strains of rats is underway. Eight new consomic rat stains (SS-2(BN), SS-4(BN), SS-6(BN), SS-7(BN), SS-8(BN), SS-11(BN), SS-12(BN), SS-14(BN), SS-Y(BN)), containing one homozygous BN/NHsdMcwi (BN) chromosome on a background of SS/JrHsdMcwi (SS), w...
We prove that there does not exist an orthonormal basis {bn} for L(R) such that the sequences {μ(bn)}, {μ(c bn)}, and {∆(bn)∆( bn)} are bounded. A higher dimensional version of this result that involves generalized dispersions is also obtained. The main tool is a time-frequency localization inequality for orthonormal sequences in L(R). On the other hand, for d > 1 we construct a basis {bn} for ...
in this research, mechanical alloying was used to synthesize ultrafine grained aa2024 and aa2024-b4c powders in an attrition mill under argon atmosphere up to 50 h with the rotational speed of 400 rpm. in order to determine the grain size of the matrix, x-ray diffraction test and williamson–hall method was used. after mechanical alloying, hot pressing and hot extrusion were used for densificati...
We report on the fabrication of fractal dendrites using laser-induced melting aluminum alloys. target boron carbide (B4C), which is one most effective radiation-absorbing materials characterized by a low coefficient thermal expansion. Due to high fragility B4C crystals, we were able introduce its nanoparticles into stabilization matrix AA385.0. The high-intensity laser field action led formatio...
In this study, it was aimed to produce Al-matrix composite materials with B4C-SiC and B4C-Y2O3 particle reinforcement using the Powder Metallurgy (PM) method. composites in which were used at different sizes ratios, AA2024 powders selected as matrix material. The homogeneously mixed compacted room temperature under a pressure of 525 MPa. raw specimens sintered by keeping them temperatures for 4...
Human small cell lung cancers (SCLC) produce and secrete the regulatory peptide bombesin (BN) or its mammalian counterpart gastrin-releasing peptide (GRP). In addition, several SCLC tumor lines have been shown to express high affinity receptors for BN/GRP. On the basis of these findings, we investigated the effect of exogenously added BN and GRP on the soft agarose colony growth of a panel of h...
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