BRACU Faculty Publications: Recent submissions
Now showing items 141-160 of 665
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Comparative study of quantum mechanical Capacitance Voltage characteristics and threshold voltage of two different structures of Junction Less Nanowire Transistor
(© 2016 IEEE, 2017-02-08)This work presents the evaluation, as well as comparison of Capacitance-Voltage (C-V) characteristic and threshold voltage variation of two different structures of Junction Less Nanowire Transistor (JLNT), Double Gate ... -
An Arab EFL context: does variance in anxiety and motivation across gender impact language attainment?
(© 2013 Canadian Academy of Oriental and Occidental Culture, 2013-06)This study proposes to investigate whether mixed classes are a de-motivating influence and increase anxiety levels and causes variance in performance between males and females. The researchers’ observation and documentary ... -
Comparison of temporal disaggregation techniques in the case of export of Bangladesh
(© 2013 International Journal of Applied Research and Studies (IJARS), 2013-11)Export plays very an import role in the economy of Bangladesh. We have tested four methods of disaggregation of which one is Boot, Feibes and Lisman (BFL) method mathematical based method. Other three are regression based ... -
Analysis of Japan‘s economy (based on 2014) from macroeconomics prospects
(© 2015 International Journal of Scientific & Technology Research (IJSTR), 2015-02)Japan is the world‘s third largest economy. But currently economic situations of Japan are not stable. It is not increasing as expected. Since 2013 it was world second largest economy but Japan loosed its placed to China ... -
A simple study on weight and height of students
(© 2017 European Scientific Institute, ESI, 2017-02)This study was conducted on a group of male and female students of age range of 18-25 years. In this paper it is tried to find out a correlation between height and weight of male and female students. Then the simple ... -
Calculation of the bandwidth of a graded-index optical fiber using experimentally measured quantities
(© 2007 Dhaka University Journal of Science, 2007-01) -
Electronic speckle pattern interferometry and related techniques using digital still cameras
(© 2007 Nova Science Publishers, Inc., 2007) -
Construction and operation of a dispersive laser raman spectrograph using interference filter
(© 2008 Journal of Bangladesh Academy of Sciences, 2008)A dispersive laser Raman system was designed and constructed using a helium-neon (He-Ne) laser as an excitation source, and an interference filter in the reflection mode for Raleigh filtering instead of the more common ... -
Construction of laser raman system using diode laser and Its performance
(© 2009 Journal of Bangladesh Academy of Sciences, 2009)We constructed a laser Raman system using a commercially available infrared diode laser. The diode laser is used without any temperature controller in a stabilized power supply. Good quality Raman spectra of sufficient ... -
Elemental profiling of surface water around Dhaka city by laser induced breakdown spectroscopy
(© 2009 Journal of Bangladesh Academy of Sciences, 2009)Using the technique of Laser Induced Breakdown Spectroscopy (LIBS), which uses a pulsed laser to create plasma and advanced spectroscopic techniques, we analyzed the contents of surface water (river water) around the city ... -
Semiquantitative determination of chromium content of river bed soil of Buriganga river at different locations
(© 2010 Journal of Bangladesh Academy of Sciences, 2010)Using the technique of Laser Induced Breakdown Spectroscopy, the chromium content of river bed sediment of the Buriganga River is determined at various locations. Hazardous element, chromium is found in addition to other ... -
Laser-induced breakdown spectroscopy and its applications in mineral and pollution analyses
(© 2012 Nova Science Publishers, 2012-09) -
Detection of multiple elements in coal samples from Bangladesh by laser-induced breakdown spectroscopy
(© 2011 Elsevier Ltd., 2011-11)Laser-induced breakdown spectroscopy (LIBS) was used to analyze the coal samples from the Barapukuria coal mine of Bangladesh and coal from eastern India. Besides the major elements carbon and silicon, a number of minor ... -
Fabrication of silver nanoparticles by laser ablation technique: their characterization and uses
(© 2013 Nova Science Publishers, 2013)Nano structure materials have generated much interest in recent years. Nanotechnology involves the fabrication of particles at the nano scale level and subsequent use of those nano structure materials for better, more ... -
Elemental profiling and identification of eco-toxic elements in agricultural soil by laser-induced breakdown spectroscopy
(© 2013 Science and Education Publishing, 2013-05)Laser induced breakdown spectroscopy (LIBS) was used to determine the elemental content and to detect probable eco-toxic elements in agricultural soil in Gazipur, Bangladesh (latitude: 24.0958° N, longitude: 90.4125° E). ... -
Survey of the water bodies for ecotoxic metals by laser-induced breakdown spectroscopy
(© 2015, Mary Ann Liebert, Inc., 2015-04)Laser-induced breakdown spectroscopy (LIBS) was applied to the analysis of ecotoxic metals in water samples, an issue of major importance for environmental monitoring. Pollution in water bodies around Dhaka city, Bangladesh ... -
Computer simulation of Fresnel diffraction from rectangular apertures and obstacles using the Fresnel integrals approach
(© 2005 Elsevier Ltd., 2007-03)In this paper, we describe a new computer simulation technique of generating Fresnel diffraction images from rectangular apertures of arbitrary dimensions by using Fresnel integrals instead of the more common fast Fourier ... -
Determination of ratio of unsaturated to total fatty acids in edible oils by laser Raman spectroscopy
(© 2009 Asian Network for Scientific Information, 2009)In this study, a homemade laser Raman spectrometer was used to examine the Raman spectra of different edible oils, such as canola, corn, soybean, sunflower, palm and coconut oils. To avoid severe fluorescence effects which ... -
Elemental profiling and determination of Ti content of the beach sand samples of Bangladesh using LIBS technique
(© 2010 Elsevier Ltd., 2010-09)Laser-induced breakdown spectroscopic technique was used to study the elemental profile of beach sand samples of Bangladesh. Apart from Silicon, which is the main elemental constituent of sand, the presence of Li, Na, Mg, ... -
Power dependence of size of laser ablated colloidal silver nanoparticles
(© 2010 EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg, 2010-11)Silver nanoparticles have been produced by laser ablation of silver metal in nanopure water without any chemical additives. It has been observed that laser power has a control over the size of the nanoparticles. Increasing ...
