نتایج جستجو برای: parameter corresponding states principles

تعداد نتایج: 1046363  

1995
Ludvig D. Faddeev Olav Tirkkonen

The quantum theory of the Liouville model with imaginary field is considered using the Quantum Inverse Scattering Method. An integrable structure with nontrivial spectral parameter dependence is developed for lattice Liouville theory by scaling the L-matrix of lattice sine-Gordon theory. This L-matrix yields Bethe Ansatz equations for Liouville theory, by the methods of the algebraic Bethe Ansa...

2008
Yong Yang Masae Takahashi Hiroshi Abe Yoshiyuki Kawazoe

The doping effects of Al2O3 on SiO2 ( -cristobalite) have been studied by first principles calculations, with emphasis on the structural, electronic and optical properties. Compared to pure SiO2 crystal, the electronic density of states (DOS) of the Al2O3 doped SiO2 show significant changes. The electron energy states corresponding to the newly emerged sharp DOS peaks are found to exhibit local...

2015
Yu Huang Fengyu Li Changqing Ye Meng Qin Wei Ran Yanlin Song

Current multi-analytes chips are limited with requiring numbers of sensors, complex synthesis and compounds screen. It is expected to develop new principles and techniques to achieve high-performance multi-analytes testing with facile sensors. Here, we investigated the correlative multi-states properties of a photochromic sensor (spirooxazine), which is capable of a selective and cross-reactive...

2014
Ben G. FITZPATRICK

We consider a class of identification algorithms for distributed parameter systems. Utilizing stochastic optimization techniques, sequences of estimat.ors are constructed by minimizing appropriate functionals. The main effort is to devel<?p weak and strong invariance principles for the underlying algorithms. By means of weak convergence methods, a functional central limit theorem is established...

2015
Charles B. Crook Costel Constantin Towfiq Ahmed Jian-Xin Zhu Alexander V. Balatsky Jason T. Haraldsen

We investigate the interactions between two identical magnetic impurities substituted into a graphene superlattice. Using a first-principles approach, we calculate the electronic and magnetic properties for transition-metal substituted graphene systems with varying spatial separation. These calculations are compared for three different magnetic impurities, manganese, chromium, and vanadium. We ...

Journal: :Physical review letters 2012
Ersoy Şaşıoğlu Christoph Friedrich Stefan Blügel

The effective on-site Coulomb interaction (Hubbard U) between localized electrons at crystal surfaces is expected to be enhanced due to the reduced coordination number and reduced subsequent screening. By means of first principles calculations employing the constrained random-phase approximation we show that this is indeed the case for simple metals and insulators but not necessarily for transi...

Journal: :Advances in Pure Mathematics 2023

The principles of sustainable economic development are formulated on the basis developed concept description systems. Mathematical algorithms for finding equilibrium states were built and conditions complete clearing markets found. definition phenomenon recession is given theorems established that formulate existence a in system. depth parameter introduced. For input-output production model, ne...

ژورنال: پژوهش های ریاضی 2022

In this paper we, obtain the weight of radial basis finite difference formula for some differential operators. These weights are used to obtain the local truncation error in powers of the inter-node distance and the shape parameter of radial basis functions. We show that for each difference formula, there is a value of the shape parameter for which RBF-FD formulas are more accurate than the cor...

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