Research Papers/Topics in Physical Sciences

Positron-Impact Excitation Of The Lowest Autoionizing State In Rubidium Atom Using Distorted Wave Method

 ABSTRACTMany calculations on atomic collisions and scattering processes have been performed on electronimpact excitation of the lowest autoionizing state of rubidium, but not much attempt has beenmade with positron impact which is of equally fundamental importance and is receiving attentionnowadays with the availability of improved positron beam experiments. So, in this study, totalcross-sections, differential cross-sections, lambda parameter, R parameter and the alignmentparam...

Mechanical Properties And Thermal Degradation Of Bitumen-Acacia Sap Composites

ABSTRACTThe rapid increase in traffic intensity, axle loading, rigorous climatic changes and commercial road transport continues to impose severe demands of load and environment on the highway system. Bitumen mostly used as a binder for road construction, waterproofing agent, coating, and insulation among others has poor mechanical and thermal properties. Different synthetic binder modifies that are being used to improved performance lead to environmental pollution during disposal. Therefore,...

Positron Impact Excitation For The Lowest Autoionizing State Of Cesium Using The Distorted Wave Method

ABSTRACTAtomic collision cross sections are of interest because they can show the collision dynamics involved in the scattering process. There has been an upsurge in interest on positron collision processes due to recent advancement in positron beam experiments. In these studies, alkali metal atoms receive preference due to their simple electronic structure and spectra. We have calculated differential cross-sections, integral cross-sections, lambda (λ) parameter and the alignment parameter (...

Magnetic Studies Of Iron Ore Mineral Deposits In Mbeu Area, Meru County, Kenya

ABSTRACTIron industry in Kenya is dependent on imported raw materials. Local deposits of iron ore have been identified at various places in the country but not much has been done to determine whether the deposits are viable in quantity and quality for commercial exploitation. The location and delineation of the iron deposits and formation in the Mbeu area appraises the potential of such mineralization. Ground magnetic survey of Mbeu area was conducted to investigate subsurface geology on the ...

Contributions To Operator Theory And Applications

AbstractThis thesis consists of two parts. The first part deals with existerice and approximation techniques for finding solutions of operator equations or fixed points of operators belonging to certain classes of mappings. The classes of mappings studied include the K-posztz~~dee finzte operators, the suppressive mappings and accretive-type rntippings. In particular, it is proved that for a real Banach space X, the equation Au = f , f E X, where A is a Kpd operator with t...

Design Construction and Characterization of Improved Local Pyranometer for the Measurement of Solar Intensity at Nsukka

TABLE OF CONTENTS PAGETitle Page iCertification iiApproval Page iiiDedication ivAcknowledgement vTable of Contents viList of Tables ixList of Figures xAbstract xiCHAPTER ONE: INTRODUCTIONBackground to the Study 1Statement of the Problem 3Purpose of the Study 4Objectives of the Study 4Research Questions 5HypothesesSignificance of the Study 5Scope of the Study 6Operational Definition of Terms 6CHAPTER TWO: REVIEW OF RELATED LITERATUREConceptual Review 7Pathophysiology 7Diagnosis 9Prevention 12M...

Measurement of liver dimensions For Sudanese using computed tomography

ABSTRASCT:-This descriptive study, conducted in the state of Khartoum in the period fromApril 2016 till October 2016 Hospital Zitouna International Specialist, bychecking researcher random sample of Sudanese patients and of 50 patientsaged between 32 and greater than 65-year-old goal of a researcher in this studyto measure the dimensions of liver Sudanese taking four dimensions thefollowing the measurement of the human liver, , the anterior posteriordimension of the left hepatic lobe e...

Tectonic Significance Of Some Geochemical Data Associated With The Ophiolitic Complexes Of The Darno Megatectonic Line, Ne-Hungary

The original tectonic setting of the mafic and ultramafic rocks of the megatectonic line of Darno are investigated using evidence provided by their major elements and trace element contents, 

Quark Star Model With Charged Anisotropic Matter

Abstract We find two new classes of exact solutions to the Einstein-Maxwell system of equations. The matter distribution satisfies a linear equation of state consistent with quark matter. The field equations are integrated by specifying forms for the measure of anisotropy and a gravitational potential which are physically reasonable. The first class has a constant potential and is regular in the stellar interior. It contains the familiar Einstein model as a limiting case and we can gener...

Archaeological Investigations In Ogbodu- Aba (Isi-Uzo Local Government Area, Anambra State) Using Electrical Resistivity Methods

ABSTRACTE l e c t r i c a l r e s i s t i v i t y p r o f i l i n g was conducted aroundOgbodu-Aba t o l o c a t e suspected s u b s u r f a c e c a v i t i e s ofa r c h a e o l o g i c a l i n t e r e s t . The method employed was t h e Wennere l e c t r o d e system and t h e t r i p o t e n t i a l t e c h n i q u e , which involved measuring 3 r e s i s t a n c e s (at a s t a t i o n ) corresponding t o t h r e e d i f f e r e n t e l e c t r o d e arrangements: CPPC, CCP...

Alkylation Of [Pt2(Μ-S)2(Pph3)4] With Boronic Acid Derivatives By Pressurized Sample Infusion Electrospray Ionization Mass Spectrometry (Psiesi- Ms) Technique

ABSTRACTThis project work present the alkylating reaction of [Pt2(μ-S)2(PPh3)4] with boronicacid alkylating agents.The reactivity of the metalloligand [Pt2(μ-S)2(PPh3)4] with theboron-functionalized alkylating agents BrCH2(C6H4)B(OR)2 (R = H or C(CH3)2) wasinvestigated by electrospray ionization mass spectrometry (ESI-MS) in real time usingthe pressurized sample infusion (PSI). The macroscopic reaction of [Pt2(μ-S)2(PPh3)4]with one mole equivalent of alkylating agents BrCH2(C6H4)B{OC...

Problems Connected with the Origin and Evolution of the Benue Trough, Nigeria

ABSTRACTThere are large areas of Nigeria and probably of West Africathat have never been visited or studied by a geologist orgeophysicist. Not so in the region surrounding the BenueTrough. This area has repeatedly attracted a lot of attentionin the past, and with the advent of plate tectonics the availablegeological and geophysical data from the region havebeen interpreted in various ways to suit different tectonicmodels. No attempt is made here to review the relevantpublished work on...

Mineralogical Compositions and Metamorphic Intensities of Contact Aureoles of Igneous Intrusive from the Lower Benue Trough, Nigeria

Abstract - Igneous intrusives of basic to intermediate (syenilic) compositions in the LowcrBcnue Trough had produced contact cffccts which ro.lge from the lowcr albite- cpidotchornfels to the cordierite hornfels facies on the host sedimentary rocks which vary mainly frompelitic to calcareous pelitic types. Contact effects of low intensity and size were produced bythree smaller igneous bodies of basic composition whose thicknesses range from 1 to 3 m. Themineral assemblages of the aure...


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