Coupling constant

In the paper "Thermal buckling of P-FGM sandwich beam with porous core on elastic foundation", a coupled effect of thermal and electrical loadings on the thermal buckling behavior of functionally graded material (FGM) sandwich beam resting on Pasternak foundation is investigated. The symmetric multi-layered beam consists of a foam core, two middle FGM layers, and two outer piezoelectric layers. It is assumed that the beam is subjected to a constant voltage and a uniform/linear temperature rise.

10p dathienlang1012 03-05-2024 1 0   Download

Ebook "Electron spin resonance: Analysis and interpretation" describes in mathematical terms the extraction of useful information from ESR spectra as applied to paramagnetic organic, inorganic and organometalic molecules. It lays a firm groundwork for understanding more sophisticated experiments, which the availability of newer commercial instruments has made possible.

186p coduathanh1122 27-03-2024 1 1   Download

In ebook "Electron-phonon interactions in novel nanoelectronics" the electron-phonon interactions in the charged molecular systems such as polyacenes, polyfluoroacenes, B, N-substituted polyacenes, and polycyanodienes are discussed.

97p coduathanh1122 27-03-2024 1 1   Download

We study the cascaded plasmon resonant field enhancement in core-shell nanoparticles using the coupled dipole method. It is found that internal field inside protein-conjugated gold nanoparticles remains constant for large wavelengths of light but is significantly enhanced at 5944 nm due to the screening from the protein shell.

4p viberbers 09-08-2023 5 3   Download

In this study, Bi0.5(Na1–xKx)0.5SnO3 (BNKS) ceramics (x = 0, 0.1, 0.2, 0.3, and 0.4) were fabricated via ultrasound wave before milling. The time of ball milling decreased from 20 to 1 h. The X-ray diffraction patterns show that the BNKS has a single-phase structure.

8p vispiderman 15-06-2023 4 2   Download

A model of an ECE mechanism consisting of two reversible electrode reactions coupled by the kinetically controlled, second order, reversible chemical reaction is developed for the staircase cyclic voltammetry on the rotating disk electrode. The relationship between the limiting current of the second wave and the rate constant of chemical reaction is investigated. The concentration of electroinactive component of the forward reaction influences the half-wave potential of the first wave and the limiting current of the second wave.

8p lyhuyenthu 31-01-2023 10 2   Download

This article considers the SU(2) gauge field coupled with the two Higgs fields. We obtain the non-Abelian solutions of the corresponding field equations. For the constant solution, the gauge field and the two Higgs fields correspond to unbroken local SU(2) symmetry at large distance.

3p vispyker 16-11-2022 4 1   Download

Schiff base derivatives NBAR and NSAR were developed for selective detection of Al3+ in aqueous solution. UV-vis spectroscopic studies revealed that NBAR and NSAR showed marked sensitivity and selectivity to Al3+ in acetonitrile (ACN)/water (v/v, 1:1, pH 6.80). The NBAR and NSAR receptors bound Al3+ in a 2:1 stoichiometry with apparent binding constants 4.09 × 10 11 M−2 and 1.65 × 10 12 M−2, respectively. They also displayed distinct changes in color upon the alteration of free Al3+ levels in solution with reversible responses and showed little interference with other metal ions.

10p langthannam 29-12-2021 3 0   Download

The paper aims at introducing an analysis of thin-walled functionally graded sandwich beams for general nonuniform quadrilateral cross-sections. Generally, the materials are assumed to be graded through the thickness following a predefined shape while Poisson’s ratio kept as a constant due to its less domination. The crosssection linearly varies from one end to another end of the beam.

11p chauchaungayxua12 09-07-2021 13 1   Download

Numerical results show that there exist quantum condensations of any component at appropriate regions of coupling constants corresponding to its positive effective chemistry potential, i.e. to its dynamic stability. In addition, the phase quantum transitions of both first and second order appear when the coupling constant changes.

6p tamynhan9 02-12-2020 8 1   Download

The (1–x)BiFe0.91(Mn0.47Ti0.53)0.09O3–xBaTiO3 (BFMT–BT) lead-free ceramics have been fabricated by using the conventional solid-state reaction method. The phase structure of BFMT−BT investigated with X-ray diffraction shows a single perovskite phase. Although 20% mol of Bi2O3 was added into the raw materials in excess, the evaporation of Bi3+ ions during calcining and sintering processes is from 20 to 30% wt. relative to other elements. The effect of BaTiO3 content on the electrical properties of BFMT−BT ceramic was investigated.

8p nguaconbaynhay9 03-12-2020 4 1   Download

In this chapter you will learn about the following: Design as a series of design decisions; various approaches and types of design, including top-down design starting with the architecture, and bottom-up design starting with utilities; design principles that lead to maintainable software, such as ‘divide and conquer’, striving for high cohesion and low coupling, as well as using good abstractions to hide details, thus simplifying the system;...

20p koxih_kothogmih3 24-08-2020 15 1   Download

In this chapter you will learn about the following: Design as a series of design decisions; various approaches and types of design, including top-down design starting with the architecture, and bottom-up design starting with utilities; design principles that lead to maintainable software, such as ‘divide and conquer’, striving for high cohesion and low coupling, as well as using good abstractions to hide details, thus simplifying the system;...

23p koxih_kothogmih3 24-08-2020 15 1   Download

In this thesis the photons rate for quarks interaction at the Bremsstrahlung process have been studies and investigation according to quantum cromodynamic and quantum picture theory. A two quarks wave function state and for initial and outgoing state in Hilbert space are assume to investigation to the quarks at bremsstrahlung.

15p chauchaungayxua6 26-06-2020 13 2   Download

In this paper, we studied the progression of shallow water waves relevant to the variable coefficient Korteweg–de Vries (vcKdV) equation. We investigated two kinds of cases: when the dispersion and nonlinearity coefficients are proportional, and when they are not linearly dependent. In the first case, it was shown that the progressive waves have some geometric structures as in the case of KdV equation with constant coefficients but the waves travel with time dependent speed. In the second case, the wave structure is maintained when the nonlinearity balances the dispersion.

7p trinhthamhodang1 16-11-2019 21 0   Download

In Discretized Kaluza-Klein theory (DKKT) the gauge fields emerge as components of gravity with a single coupling constant. Therefore, it provides a new approach to fix the parameters of the Standard Model, and in particular the Weinberg angle.

11p vitheseus2711 24-10-2019 28 0   Download

The rate constant of the cross-coupling reaction could be increased up to 75 times using the micro reactor, as compared to the batch reaction. The deposition of magnesium species on the surface of the nickel silica catalyst still remains to be solved, while the problem is considerably less serious for the nickel resin catalyst used in the micro reactor system.

7p chikychiky 11-11-2018 24 1   Download

The temperature dependent ultrasonic parameters like ultrasonic attenuation, acoustic coupling constant, ultrasonic Grüneisen parameter and ultrasonic velocity at room temperature have been computed for neptunium monopnictides (NpX, where X=N, P, As, Sb). For the evaluation of ultrasonic parameters, the higher order elastic constants have been found out using Coulomb and Born-Mayer potential up to second nearest neighbour in the temperature range 0-300K.

11p truongtien_09 08-04-2018 24 0   Download

lessons from the successful investor has been a surprise success. i wrote lessons from the successful investor immediately after graduating from the university of waterloo, having been constantly asked by friends, family, co-workers and acquaintances to consolidate my value investing knowledge into a neat package for easy consumption. that said, the summer of 2010 consisted of researching, writing, and editing lessons from the successful investor, which finally launched september 1, 2010 across major digital book stores. initially, downloads of the trickled in.

21p geometry1122 09-05-2013 49 3   Download

Many home computer users currently connect to the Inter- net through dial-up, ADSL, cable or other services that as- sign them new IP addresses constantly — anywhere from every couple of hours to every couple of days. This af- fects our estimation of number of hosts involved in each spam campaign. We correct this by estimating how “dy- namic” each IP address is, and compensate by “merging” some dynamic IP addresses with other IP addresses in the same spam campaign. The problem of IP dynamics was rst presented and studied in [18].

14p nhacsihuytuan 06-04-2013 54 8   Download