Wave transmission

Part 2 book "Transmission, distribution, and renewable energy generation power equipment" includes content: Insulation, coatings and adhesives in transmission and distribution electrical equipment; electrical equipment life expectancy, aging, and failures; solar energy; tidal and wave power; wind energy equipment; wind energy equipment corrosion; wind turbine gearboxes and bearings; wind turbine lubrication; wind turbine failures; life expectancy and life cycle assessment (LCA) of renewable electrical equipment.

361p dianmotminh03 17-06-2024 1 0   Download

A theoretical study of sound transmission loss across a simply supported double-composite sandwich plate filled with poroplastic material is formulated. Biot's theory is employed to describe wave propagation in elastic porous media. The two face composite plates are modeled as classical thin plates. By using the modal superposition theory, a double series solution for the sound transmission loss of the structure is obtained with the help of the Galerkin method.

10p dathienlang1012 03-05-2024 0 0   Download

The Mekong deltaic coasts have suffered from erosion and mangrove losses due to many relative threats in human activities, bringing to coastal instabilities. The massive and large number of constructions, such as sea dikes, revetments, and sea walls, tend to break the equilibrium in multiple locations along the coasts. As a result, a significant reduction of mangroves comes along in qualitative and quantitative variations, for example, the number of trees in one location and the healthy width of mangroves.

13p dianmotminh02 03-05-2024 1 1   Download

Ebook "High-resolution electron microscopy (Fourth edition)" retains previous material on the fundamentals of electron optics and aberration correction, linear imaging theory (including wave aberrations to fifth order) with partial coherence, and multiple-scattering theory. Also preserved are updated earlier sections on practical methods, with detailed step-by-step accounts of the procedures needed to obtain the highest quality images of atoms and molecules using a modern TEM or STEM electron microscope.

427p coduathanh1122 27-03-2024 2 1   Download

Part 2 book "Engineering electromagnetics" includes content: Time varying fields and Maxwell's equations; the uniform plane wave; plane waves at boundries and in dispersive media; transmission lines; waveguide and antenna fundamentals.

264p muasambanhan06 03-02-2024 4 2   Download

Part 2 book "Engineering electromagnetics" includes content: Magnetic forces, materials, and inductance; time varying fields and Maxwell’s equations; transmission lines; the uniform plane wave; plane wave reflection and dispersion; guided waves; electromagnetic radiation and antennas.

367p muasambanhan06 03-02-2024 2 2   Download

Part 2 book "Principles of electronic communication systems" includes content: Fundamentals of networking, local area networks, and ethernet; transmission lines; antennas and wave propagation; internet technologies; microwave and millimeter wave communication; satellite communication; telecommunication systems; optical communication; cell phone technologies; wireless technologies; communication tests and measurements.

497p muasambanhan06 03-02-2024 7 2   Download

Part 2 book "Principles of electronic communication systems" includes content: Digital data transmission; fundamentals of networking, local area networks, and ethernet; transmission lines; antennas and wave propagation; internet technologies; microwave and millimeter wave communication; satellite communication; telecommunication systems; optical communication; cell phone technologies; wireless technologies; communication tests and measurements.

557p muasambanhan06 03-02-2024 2 1   Download

This paper will design a wave energy conversion model using hydrostatic transmission. Then, the optimal radius of the buoy is obtained so that wave energy capture ability of the system is maximum. In this study, the data of the wave in the Ocean such as: wave length, wave period, wave high are known.

6p vimarillynhewson 02-01-2024 4 3   Download

Continued part 1, part 2 of ebook "Physics of oscillations and waves: With use of Matlab and Python" provides readers with contents including: Chapter 10 - Reflection, transmission and polarization; Chapter 11 - Measurements of light, dispersion, colours; Chapter 12 - Geometric optics; Chapter 13 - Interference diffraction; Chapter 14 - Wavelet transform; Chapter 15 - Coherence, dipole radiation and laser; Chapter 16 - Skin depth and waveguides;...

280p dangsovu 20-10-2023 8 5   Download

This paper is a study of the vibroacoustic behavior of orthotropic laminated composite rectangular plate under a sound wave excitation in thermal environments. An improved analytical procedure has been developed that allows for an efficient solution of the finite composite plate sound transmission problem.

14p viisac 15-09-2023 2 2   Download

This paper is a study of the vibroacoustic behavior of orthotropic laminated composite rectangular plate under a sound wave excitation in thermal environments. An improved analytical procedure has been developed that allows for an efficient solution of the finite composite plate sound transmission problem

14p viwolverine 11-07-2023 3 2   Download

Lecture Network + Guide to Networks (6th Edition) - Chapter 8: Wireless Networking, objectives of this chapter: Explain how nodes exchange wireless signals; Identify potential obstacles to successful wireless transmission and their repercussions, such as interference and reflection; Understand WLAN (wireless LAN) architecture.

71p chankora08 04-07-2023 5 3   Download

In this paper, Wavelet transforms for the recognition and localization of short circuits faults on the power transmission lines. In that, the voltage waves and current waves on the lines are simulated by Simulink - Matlab.

5p vidoctorstrange 06-05-2023 5 3   Download

This research has raised the question of whether the vibration transmission at a wall junction depends on how the wall is excited (by either a sound wave or a mechanical shaker). The aim of this research is to investigate this question and hence contribute to the revision of the series of standards. Villot and Guigou-Carter (2000) have considered this problem but their equations (10) and (13) appear to be in error. This research will endeavour to derive the correct equations and r epeat Villot and Guigou Carter’s calculations.

162p runthenight05 01-03-2023 5 2   Download

In this paper, a non-destructive experimental method based on ultrasonic through-transmission technique has been developed to measure phase velocity and attenuation of both compressional and shear waves. Two pairs of transducers are used for the measurements, one with center frequency of 5 MHz, and the other pair with center frequency of 10 MHz. The method is tested on the homogeneous material Polymethylmethacrylate (PMMA).

4p vispyker 16-11-2022 10 4   Download

A new type of floating breakwater (FB) is proposed in this paper. Its hydrodynamic performance has been tested. The structure of the new breakwater named perforated semi-circular floating breakwater (SCFB) consists of two parts: a main body of a box-shaped base block and a semi-circular upper structure is perforated for the purpose of absorbing breaking and overtopping wave energy.

12p vimclaren 12-10-2022 6 2   Download

(BQ) Ebook Electromagnetics (2nd edition): Part 2 includes the following content: The relation between field and circuit theory, maxwell's equations; plane waves in dielectric and conducting media; wave polarization; wave reflection, refraction, and diffraction; transmission lines, waveguides, and resonators; antennas and radiation; particles and plasmas moving systems and space-time.

483p runordie6 10-08-2022 4 1   Download

(BQ) Ebook Transmission electron microscopy: A textbook for materials science - Part 1 includes the following content: The transmission electron microscope; scattering and diffraction; elastic scattering; inelastic scattering and beam damage; electron sources; lenses, apertures, and resolution; how to ‘see’ electrons; pumps and holders; the instrument; specimen preparation; diffraction in TEM; thinking in reciprocal space; diffracted beams; bloch waves; dispersion surfaces; diffraction from crystals; diffraction from small volumes; obtaining and indexing parallel-beam diffraction patterns; ...

318p runordie6 06-08-2022 6 0   Download

This paper deals with the reflection and transmission of P-waves at a very rough interface between two isotropic elastic solids. The interface is assumed to oscillate between two straight lines. By mean of homogenization, this problem is reduced to the reflection and transmission of P-waves through an inhomogeneous orthotropic elastic layer.

13p inception36 30-11-2021 6 1   Download