نتایج جستجو برای: کنترل h_

تعداد نتایج: 86886  

Journal: :Physical review 2022

To elucidate the origin of re-enhanced high-$T_c$ phase in heavily electron-doped Fe-pnictides, systematic $^{75}$As NMR studies are performed on LaFe$Pn$O$_{0.75}$H$_{0.25}$ by controlling pnictogen height ($h_{Pn}$) from Fe plane through substitution at $Pn$(=As) site with Sb or P. The measurements nuclear spin relaxation rate (1/$T_1$) and Knight shift ($K$) reveal that moderate fluctuations...

Journal: :Bulletin of The London Mathematical Society 2022

In this paper we show three new results concerning dimension datum. Firstly, for two subgroups $H_{1}$($\cong U(2n+1)$) and $H_{2}$($\cong Sp(n)\times SO(2n+2)$) of $SU(4n+2)$, find a family pairs irreducible representations $(\tau_1,\tau_2)\in\hat{H_{1}}\times\hat{H_{2}}$ such that $\mathscr{D}_{H_1,\tau_1}=\mathscr{D}_{H_2,\tau_2}$. With construct examples isospectral hermitian vector bundles...

Journal: :Journal of Fluid Mechanics 2021

In droplet impacts, transitions between coalescence and bouncing are determined by complex interplays of multiple mechanisms dominating at various length scales. Here we investigate the governing parameters comprehensively experiments scaling analyses, providing a unified framework for understanding predicting outcomes when using different fluids. Specifically, while had not been observed in he...

Journal: :Afrika Matematika 2021

In this paper, several weighted summation formulas of q-hyperharmonic numbers are derived. As special cases, hyperharmonic type \(\sum _{\ell =1}^{n} {\ell }^{p} H_{\ell }^{(r)}\) and =0}^{n} H_{n-\ell obtained.

Journal: :Boundary-Layer Meteorology 2021

Wind tunnel experiments were carried out on four urban morphologies: two tall canopies with uniform-height and super-tall a large variation in element heights (where the maximum height is more than double average canopy height, $h_{max}$=2.5 $h_{avg}$). {The packing density fixed across surfaces to $h_{avg} = 80$ mm, $\lambda_{p} 0.44$, respectively.} A combination of laser doppler anemometry d...

موضوعِ این پژوهش، طراحی کنترل‌کننده‌یِ تکه‌تکه‌ی خطی‌دینامیکی از نوع تکه‌تکه‌ی $H_{i‌n‌f‌t‌y}$ برای سیستم‌های تکه‌تکه‌ی مستوی است. مسئله‌ی اصلی به‌صورت مجموعه‌یی از مسائل طراحی کنترل‌کننده‌های $H_{i‌n‌f‌t‌y}$ در نظر گرفته می‌شود و نشان داده می‌شود که می‌توان این مجموعه از مسائل را در قالبِ مسائلِ بهینه‌سازی محدب با قیدهای نابرابریِ ماتریسِ خطی بیان کرد که از طریق نرم‌افزارهای موجود به‌نحوی کارآمد قا...

Journal: :Electronic Journal of Combinatorics 2023

The perfect matching complex of a graph is the simplicial on edge set with facets corresponding to matchings graph. This paper studies complexes, $\mathcal{M}_p(H_{k \times m\times n})$, honeycomb graphs. For $k = 1$, $\mathcal{M}_p(H_{1\times n})$ contractible unless $n\geq m=2$, in which case it homotopy equivalent $(n-1)$-sphere. Also, $\mathcal{M}_p(H_{2\times 2\times 2})$ wedge two 3-spher...

2013
Christian Neubauer Ulrich Schreiber

Chlorophyll fluorescence quenching induced by H 20 2 in intact spinach chloroplasts was investi­ gated with a modulation fluorometer which allows to distinguish between photochemical and non­ photochemical quenching com ponents by the so-called saturation pulse method. Residual catalase activity was removed by washing and percoll gradient centrifugation. H 20 2 was found to induce pronounced ph...

Journal: :Regular & Chaotic Dynamics 2022

We consider reversible nonconservative perturbations of the conservative cubic Hénon maps $$H_{3}^{\pm}:\bar{x}=y,\bar{y}=-x+M_{1}+M_{2}y\pm y^{3}$$ and study their influence on 1:3 resonance, i. e., bifurcations fixed points with eigenvalues $$e^{\pm i2\pi/3}$$ . It follows from [1] that this resonance is degenerate for $$M_{1}=0,M_{2}=-1$$ when corresponding point elliptic. show under give ri...

Journal: :Proceedings of the American Mathematical Society 1996

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