Harmonic functions

The receptance function is very important which interrelates the harmonic excitation and the response of a structure in the frequency domain. This report presents the exact formula of receptance function of AFG beam with varying width. When the width of beam decreases from the fixed end to the free end, the natural frequencies of the AFG beam increase.

10p dathienlang1012 03-05-2024 2 0   Download

Journal of Finance & Accounting research - No. 03 (16) - 2022 includes papers: Issues of capital mobition and service provided for public professional units in the health - population section; Public expenditureson climate change adaptation and resilience: An empirical analysis from Vietnam; Impacts of health insurance policy to sustainable development health insurance in Vietnam; Applying Cobb-Douglas production function in estimating economic growth model in Vietnam; The harmonization of IFRS in Vietnam: The theme of land accounting;...

96p longtimenosee09 08-04-2024 5 1   Download

Part 2 book "Fundamentals of physics - Mechanics, relativity, and thermodynamics" includes content: Special relativity II - some consequences, special relativity III - Past, present and future; four momentum, mathematical methods, simple harmonic motion, waves I, waves II, fluids, heat, thermodynamics I, thermodynamics II, entropy and irreversibility.

238p muasambanhan09 16-03-2024 4 1   Download

Part 1 book "Problems and solutions in quantum mechanics" includes content: Wave functions; the free particle; simple potentials; the harmonic oscillator; angular momentum.

164p muasambanhan07 08-02-2024 1 0   Download

Ebook "Non-linear optical response in atoms, molecules and clusters: An explicit time dependent density functional approach" is to present, in sufficient detail, a non-perturbative technique for calculating optical hyperpolarizabilities. The ability to efficiently compute hyperpolarizabilities, for a variety of different molecular systems, makes this brief invaluable for those engaged in the computational design of new electro-optical materials.

74p nhanphanguyet 28-01-2024 5 2   Download

In this work, we investigate the validation of the even-to-odd universality helium atom consisting of two electrons, applying the time-dependent density functional theory. The results demonstrate that the multielectron effect manifesting through the repulsive Coulomb and exchange-correlation interactions does not considerably change the universality of the even-to-odd ratio of the helium atom.

13p vimichaelfaraday 28-12-2023 7 3   Download

Part 1 of ebook "Partial differential equations: An introduction" provides readers with contents including: Chapter 1 - Where PDEs come from; Chapter 2 - Waves and diffusions; Chapter 3 - Reflections and sources; Chapter 4 - Boundary problems; Chapter 5 - Fourier series; Chapter 6 - Harmonic functions; Chapter 7 - Green’s identities and Green’s functions; Chapter 8 - Computation of solutions;...

239p caongulam 10-11-2023 7 4   Download

Continued part 1, part 2 of ebook "Introduction to Mathematica for Physicists" provides readers with contents including: Chapter 13 - Packages; Chapter 14 - Plots; Chapter 15 - Trigonometric functions; Chapter 16 - Quantum oscillator; Chapter 17 - Spherical harmonics; Chapter 18 - Adding angular momenta in quantum mechanics; Chapter 19 - Classical nonlinear oscillator; Chapter 20 - Quantum nonlinear oscillator; Chapter 21 - Riemann curvature tensor; Chapter 22 - Multi-functions;...

106p dangsovu 20-10-2023 8 5   Download

Part 1 of ebook "Introductory quantum mechanics: A traditional approach emphasizing connections with classical physics" provides readers with contents including: mathematical preliminaries; free-particle Schrödinger equation - wave packets; Schrödinger's equation with potential energy - introduction to operators; postulates and basic elements of quantum mechanics - properties of operators; simple harmonic oscillator - one dimension; problems in two and three-dimensions - general considerations;...

317p dangsovu 20-10-2023 7 3   Download

Multiscale model reduction approach for a nonlinear equation arising from elasticity - We present a multiscale model reduction framework utilizing generalized multiscale finite element method, for a twodimensional nonlinear equation emerging from strain-limiting elasticity.

5p nhanchienthien 25-07-2023 6 4   Download

Continued part 1, part 2 of ebook "Excursions in harmonic analysis - Volume 3: The February fourier talks at the Norbert Wiener center" provide readers with content including: gabor theory; the HRT conjecture and the zero divisor conjecture for the heisenberg group; the abc-problem for gabor systems and uniform sampling in shift-invariant spaces; on various levels of linear independence for integer translates of a finite number of functions; RADAR and communications - design, theory, and applications;...

176p dieptieuung 19-07-2023 4 3   Download

Continued part 1, part 2 of ebook "Complex analysis (Third edition)" has presents the following content: further contour integral techniques; introduction to conformal mapping; the riemann mapping theorem; maximum-modulus theorems for unbounded domains; harmonic functions; different forms of analytic functions; analytic continuation; the gamma and zeta functions; applications to other areas of mathematics;...

165p dieptieuung 20-07-2023 3 2   Download

In this paper, we obtain the Harnack distance on domains

5p vispiderman 15-06-2023 5 2   Download

This paper presents a new pulse width modulator control method using the offset function to reduce switching loss in five-level Cascade inverter. The proposed technique is based on the offset function being 3rd harmonic voltage. The offset voltage will be added to the control voltages so that the voltage of phase which has absolute of load current largest move into top or bottom of the carriers.

7p vidoctorstrange 06-05-2023 4 2   Download

This paper presents a new carrier pulse width modulator algorithm to reduce switching loss in five-level H-bridge neutral point clamped inverter. The proposed technique is based on the offset function being 3rd harmonic voltage.

7p vidoctorstrange 06-05-2023 3 2   Download

Lecture Physics A2: Oscillations - PhD. Pham Tan Thi present the content what is an Oscillation, simple harmonic oscillation/motion, period and frequency, angular frequency, displacement as function of time in SHM,...

24p xusong 21-07-2021 15 2   Download

This paper establishes the exact receptance function of a clamped-clamped beam carrying concentrated masses. The derivation of exact receptance and the numerical simulations are provided. The proposed receptance function can be used as a convenient tool for predicting the dynamic response at arbitrary point of the beam acted by a harmonic force applied at arbitrary point.

14p nguaconbaynhay11 07-04-2021 20 2   Download

In this paper, vibration of a 2D-FGSW Timoshenko beam formed from three distinct materials traversed by a harmonic load is studied by the finite element method. The beam consists of three layers, a homogeneous core and two FGM skin layers with the material properties continuously varying in both the thickness and length directions by power functions.

16p cothumenhmong9 04-01-2021 12 1   Download

The paper shows that the response of the random Rayleigh system, which is under harmonic and random excitations, can be found by a system of algebraic equations. The analytical approach is based on the stochastic averaging method and equivalent linearization method in Cartesian coordinates so that the Fokker-Planck equation associated with the linear equations obtained can be solved exactly by the technique of auxiliary function. The harmonic excitation frequency is taken to be in the neighborhood of the system natural frequency.

11p trinhthamhodang9 10-12-2020 21 1   Download

We will show that Schrodinger equations for low-dimensional systems can be solved by the method of quantum Diffusion Monte Carlo (DMC). The wave function and energy in a ground state are found for the two-dimensional harmonic oscillator, quantum wells, quantum wires and quantum dots. This is great approach for problems of low-dimensional systems. In this paper, the sign of the wave function is not treated.

7p tamynhan5 10-12-2020 15 2   Download