Browsing Department of Physics (Ph.) by Title

Now showing items 1-20 of 63

Eff'ect of Lanthanum Substitution on the Structural, Magnetic and Transport Properties of Cu-Zn Ferrites

Nahar, Kamrun (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh, 2018-11)

This thesis work is acquainted with the study of lanthanum (La) doped Cu-Zn ferrite. The composition of the sample is Cu0.15Zn0.85LaxFe2-xO4 where it was prepared for x = 0.00, 0.02, 0.04, 0.06 and 0.08 content of La by ...
Effect of Bi2O3 and V2O5 addition on Structural, Electrical transport and Electromagnetic properties of Ni-Cu-Zn Ferrites

Gofur, Md. Abdul (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2016-12)

Ni-Cu-Zn ferrites are well-known technological magnetic materials used for manufacturing of multilayer chip inductor and applications in various electrical devices. The present work is focused on the influence of ...
Effect of Grain Size and Phase Constitution on the Magnetic Properties of Fe-X-Nb-Si-B [X = Cu, Au & Ag] Alloys

Asaduzzaman, A. K. M. (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2016-11)

Amorphous FINEMET type alloy nominal composition of Fe73.5X1Nb3Si13.5B9 [ X = Cu, Au and Ag] has prepared by melt spinning technique. The samples are initially prepared in the amorphous state in the form of thin ribbons ...
The Effect of Grain Size and Phase constitution on the Magnetic Properties of Higher Content Cr substituted Fe73.S.XCrXNb3CUISiI3 5B9 Nanocrystalline Alloys

Iqbal, Mohammad Zashed (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2015-07)

This thesis is based on the experimental investigation of the effect of grain size and phase constitution on the magnetic behavior of Fe73.5-xCrxNb3Cu1Si13.5 B9 [x = 7, 9, 10 & 12.5] alloys in the amorphous and annealed ...
Effect of Rare Earth Metal Substitution on the Structural, Magnetic and Transport properties of Ni-Zn Ferrites

Hossain, Md. Alamgir (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2017-01)

The present work is focused on the influence of substitutions rare earth ions in Ni-Zn ferrites. Three series of ferrite samples of the compositions Ni0.60Zn0.40-xLaxFe2O4 (where x = 0.05, 0.10 and 0.15), Ni0.60Zn0.40-xYxFe2O4 ...
Effects of Two Step Annealing on Complex Permeability of Fe-Cu-Nb-Si-B Nanocrystalline Soft Magnetic Materials

Noor, Saroaut (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2005-03)

The typical nanocrystalline alloy known as Finemet with the composition Fe73.5Cu jNb3Si135B9 has been studied for the soft magnetic properties. The crystalline phases that evolved after crystallization were studied by ...
Effects of Two Step Annealing on Dynamic Magnetic Properties of Co- and Co-Fe-Based Amorphous Ribbons

Khan, Md. Zakir Hossain (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2005-05)

Co-and Co-Fe-based amorphous ribbons with general composition Co80-xFexB10Si10 have been prepared by the melt- spinning technique where Co has been substituted by Fe from 0 to 8 At%. The amorphousity of the samples has ...
Electromagnetic Properties of Iron deficient Ni-Cu-Zn Ferrites and the influence of additives as sintering AID

Khan, Md. Zakir Hossain (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh, 2013-01)

The present work is focused on the influence of substitutions and sintering aids on electromagnetic properties of Fe-deficient Ni-Cu-Zn ferrite. Three series of ferrite samples of the compositions (Ni0.28Cu0.10Zn0.62O) ...
Exchange Interaction of Soft and Hard Magnetic Phases in Exchange-Spring Magnet of Nd3Tb1Fe76Cu0.5Nb1B18.5

Ansari, Md. Abu Hanif (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2010-12)

This thesis describes the experimental investigation ofan ingot of composition Nd3Tb1Fe76Cu0.5Nb1B18.5 was prepared by arc melting the constituent elements in an argon atmosphere. The purity and origin 01 the materials ...
Impact of Cumulus Convective and Plantery Boundery Layer Parameterization Schemes on The Simulation Of Tropical Cyclone Using Weather Research And Forcasting (WRF) Model

Hossain, Md. Jahangir (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2013-12)

The convection and planetary boundary layer (PBL) processes play significant role in the genesis and intensification of tropical cyclones (TCs). Three convective and two PBL parameterization schemes have been incorporated ...
Impact of Environmental Moisture on the Intensification of Tropical Cyclone in the Bay of Bengal using WRF-ARW Model

Das, Sumon Kumar (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh, 2018-03)

Comprehensive sensitivity analysis on physical parameterization schemes of Advanced Weather Research and Forecasting model (ARW-WRF v3.8.1) has been carried out for the impact of environmental moisture on the intensification ...
Impact of PBL on the Simulation of Heavy Rainfall Events in the Monsoon Season Over Bangladesh Using WRF-ARW Model

Islam, S. M. Rafiqul (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2013-07)

In the present study the Advanced Research WRF (ARW) model version 3.2.1 has been used to simulate the heavy rainfall events of 27-29 July 2009, 15-16 August 2009, 26-27 June 2010 and 7-8 September 2011 over Bangladesh ...
Implications for Instrumental Neutron Activation Analysis (INAA) to Study Bhairab River Sediments using Research Reactor Based Gamma Spectrometry

Hossain, Sheikh Md. Anowar (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2018-04)

Pollutions are increasingly becoming great concerns for human beings. The present study investigates the distribution and contamination of trace elements in the sediment samples of the Bhairab River, passing through the ...
Influence of Annealing Temperature on Magnetization and Initial Permeability of Fe-Ni Based Amorphous Ribbons

Mollik, Nitish Chandra (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2014-10)

Iron-Nickel-Boron (Fe-Ni-B) amorphous ribbons with composition FexNi80-x B20 have been prepared by the melt spinning technique where Ni has been substituted by Fe at constant metalloid Boron. The complex permeability of ...
Investigation of the Structural, Magnetic and Transport Properties of Yttrium Substituted Ni-Zn Ferrites

Akter, Sharmin (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh, 2019-02)

The present research work is focused on Yttrium (Y) doped Ni-Zn ferrites. The ferrite samples of the composition Ni0.25Zn0.75YxFe2-xO4 [where x= 0.00, 0.02, 0.04, 0.06 and 0.08] were synthesized by conventional solid ...
Multiple Correlation Between Different Meteorological Parameters in Pre-Monsoon and Monsoon Rainfall over Bangladesh

Yesmin, Lovely (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2008-06)

In this research work we have tried to find out the multiple correlation between five meteorological parameters dry bulb temperature, wet bulb temperature, minimum temperature, maximum temperature and rainfall of pre-monsoon ...
Multiple Correlation Between Rainfall of Post-Monsoon Season and the Different Meteorological Parameters of the Monsoon Season Over Bangladesh

Pervin, Shaheena (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh., 2005-10)

In this thesis work attempt has been made to investigate the correlation between the monthly and seasonal rainfall of post monsoon with the dry bulb and wet bulb temperature and rainfall of different months of monsoon ...
Prediction of Formation and Tracks of Bay of Bengal Cyclones

Alam, Dr. Md. Mahbub (Dhaka University (DU), Dhaka, Bangladesh., 1998-12)

Rawindsonde data of 0000 UTC for standard isobaric surfaces at the surface, 850, 700, 500, 400, 300, 200, 150 and 100 hPa levels for the periods of different cyclones in the last decade were considered to study the ...
Prediction of High Impact Precipitation Events over Bangladesh and its surrounding areas using NWP Models

Akhter, Md. Abdullah Elias (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh, 2012-03)

Bangladesh is a disaster prone country. Almost every year, the country experience disasters of one kind or another - such as tropical cyclones, storm surges, coastal erosion, hoods due to heavy rainfall and droughts - ...
Sensitivity of Tropical Cyclone Mahasen to Physical Parameterization Schemes using Weather Research & Forecasting (WRF) model

Debnath, Samir Kumar (Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh, 2018-01)

In this study, the sensitivity of numerical simulations of tropical cyclone to physical parameterizations is carried out with a view to determine the best set of physics options for prediction of cyclones originating in ...

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