OALib 期刊
  OALib Journal (ISSN Print: 2333-9705, ISSN Online: 2333-9721)是一本多合一的开源期刊,以同行评审的方式出版发行文章,其所涵盖的研究领域多达311种领域。本刊发表的全部文章均可在期刊网站上免费阅读、下载、引用和传播。单篇文章出版费用为99美元。详情请咨询service@oalib.com现在就去投稿!
               文章 | 目标与领域 | 读者指南 | 编委 | 文章版面费检索             


Go

Feb 12, 2018Open    AccessArticle

Comparison of Mathematical Methods to Obtain Concentration and Temperature of Newtonian Fluids in Tubular Reactors

Diego Alves de Miranda, Renato Cristofolini, Emerson José Corazza, Gilson Joao dos Santos, Claiton Emilio do Amaral
In several areas of engineering, it is possible to put real problems in mathematical functions; when we represent a problem with variables in the form of function, we were able to extract various information from it. This paper compared two different mathematical methods, being the finite difference method and the Fourth Order Range-Kutta method, to analyze the concentration and temperature of
...


Dec 15, 2017Open    AccessArticle

Scattering of Stationary and Non-Stationary Sound by Ideal and Elastic Scatterers, Placed near Interface of Media, in Underwater Sound Channel and in Plane Waveguide

Alexander Kleshchev
In the review we obtained a strict solution of problem of the sound diffraction by an elastic spheroidal shell, located near the interface of a liquid medium with an elastic solid medium. Calculation of the scattered sound field for ideal bodies (a spheroid and an elliptical cylinder) is performed. These bodies are placed on the interface between the liquid and the ideal medium; it is shown, that the main role is played not
...


Aug 04, 2016Open    AccessArticle

Gravitational Lensing of Spiral Vortex Solar Radiation by Venus

Genrik A. Nikolsky, Alexander F. Pugach
Instrumental observations of the Venus transit on June 6, 2012 were performed using two similar torsinds—a special kind of ultralight torsion balances on a silk suspension. A clear response of both devices to this phenomenon was registered. The observations have verified a theoretical assumption on existence of the Spiral Vortex Solar Radiation (SVSR). The direct measurements of a space veloci
...


Nov 27, 2015Open    AccessArticle

Optical Properties of RF Sputtered Samarium Oxide Thin Films

M. M. Abd El-Raheem, M. H. El Bogami, Ateyyah M. Al-Baradi, S. A. Amin, A. M. El-Naggar, A. A. Albassam
This paper reports the optical properties of prepared samarium oxide Sm2O3 thin films nanoparticles using RF sputtering technique. X-ray diffraction is used to examine and characterize the prepared films. Optical measurements are carried out by employing U-V-Visible spectroscopy to study optoelectronic properties of Sm2O3 thin films. These films are highly transparent in the visible range. The average value of the optical gap belonging to the thin...


Dec 24, 2014Open    AccessArticle

Thermoelectric Module for Low-Voltage Loads

Reynaldo G. Salamat
The focus of this paper is to develop a thermoelectric module for low-voltage loads that will satisfy the electrical use and stored charges in the improvised power bank that can be used by the students and the faculty in everyday life or even in emergency. This project will benefit the BIT and COE students of the Bulacan State University, and the professionals: drafters, architects, engineers or even hikers, adventure seekers and future researchers. The thermoelectric module is composed for low-...


Jul 24, 2014Open    AccessArticle

Characteristics of Diamond-Like Carbon Thin Film Semiconductor for Photovoltaic Application

K. M. A. Hussain, T. Faruqe, J. L. Sullivan

Diamond-Like Carbon (DLC) thin film semiconductors were produced by Radio Frequency Plasma Enhanced Chemical Vapour Deposition (RF-PECVD) method and characterized by nanoindentation to investigate its mechanical properties for protective coating applications. The XRD analysis showed that the films were hydrogenated amorphous carbon (a-C:H) nature. The thickness of the films was measured by Ellipsometry and Profilometry. The thickness variation with depos

...


Go