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All published articles 345

Adsorption of Methylene Blue from Aqueous Solution Using Locust Bean Gum graft Copolymer-bentonite Composite

Sirajo Abubakar Zauro, Vishalakshi Badalamoole & Haruna Shehu Ahmed · Asian Journal of Physical and Chemical Sciences · 2018

A graft copolymer gel composite made up of locust bean gum (LBG), diallyldimethylammonium chloride (DADMAC), 2-acrylamido-2- methyl-1-propane sulfonic acid (AMPS) and bentonite (BNT) was prepared using methylenebisacrylamide (MBA) as crosslinker via microwave irradiation and char...

Open access Research Article 10.9734/AJOPACS/2018/43892

Estimation of Radiation Risks Associated with Radon within Residential Buildings in Okrika, Rivers State, Nigeria

Sokari, Sylvester Akinabie · Asian Journal of Physical and Chemical Sciences · 2018

The presence of high indoor radon concentration in residential buildings is a major concern of the public worldwide. Measurements of the indoor radon concentration in some selected residential buildings made of different building materials within Okrika local Government Area, in...

Open access Research Article 10.9734/AJOPACS/2018/43400

Degradation of Dyestuffs from Industrial Effluents using an Ultrasonic Bath in the Presence and Absence of Various Inorganic Salts and H2O2

Md. Monjurul Islam, Md. Ashifuzzaman, Md. Shamim Reza, Jerin Alauddin, Sumon Ganguly, B. M. Saifur Rahman, Most. Shahida Khatun, Md. Rashidul Islam, Md. Jahangir Hossain & Md. Helal Uddin · Asian Journal of Physical and Chemical Sciences · 2018

Textile industries consume various dyestuffs for dyeing of fabrics. These dyestuffs are often present in industrial wastewater, have a serious impact on the environment and personal health. This report describes a system developed to degrade the dyestuffs using sonochemical react...

Open access Research Article 10.9734/AJOPACS/2018/42490

Evaluation of Indoor and Outdoor Radon of Different Residential Buildings and Its Exposure Risks

C. P. Ononugbo & B. Osiga · Asian Journal of Physical and Chemical Sciences · 2018

Measurement of indoor and outdoor radon concentration in five different types of residential buildings were done using two Corentium Radon detector of model type; BQM-Digital Radon detector. It was done simultaneously and the readings taken after 24 hours for five days in a parti...

Open access Research Article 10.9734/AJOPACS/2018/42334

Reason for Higher Rate of Gas Flow per Unit Cross-Sectional Area of Smaller Pore Aperture

Ikechukwu I. Udema · Asian Journal of Physical and Chemical Sciences · 2018

Objectives: The objectives of this research are to 1) Formulate equation that shows the effect of pore aperture (or confinement) on not just the mass movement of molecules but the movement of individual molecules and 2) elucidate the derived equation and illustrate with diameter...

Open access Research Article 10.9734/AJOPACS/2018/41975

Toxic Elements Levels in Water and Some Vegetable Crops Grown in Farms in Bade Local Government Area of Yobe State, Nigeria

A. Oyekanmi, F. Okibe & W. P. Dauda · Asian Journal of Physical and Chemical Sciences · 2018

This study determined heavy metal concentrations in soil, water and some vegetables such as (Spinach (Amaranth caudatus), Lettuce (Lactuca Sativa) and Tomato (Lycopersicon esculentum)) which were freshly harvested within five various farms (Samaila Hardaway farm, Mohammed Koli fa...

Open access Research Article 10.9734/AJOPACS/2018/39560

Morphological and Optical Characteristics of ZnO and F: ZnO Thin Films by a Sol-Gel Spin Coating Technique

Y. A. Odedunmoye, I. T. Bello, O. Adedokun, M. K. Awodele & A. O. Awodugba · Asian Journal of Physical and Chemical Sciences · 2018

The increase in the application of transparent conducting oxides (TCOs) thin films has led to a continuous demand for improved quality films for solid-state devices. Indium tin oxide (ITO) which is mostly used as TCO is reportedly scarce, thus making it more expensive. This paper...

Open access Research Article 10.9734/AJOPACS/2018/42421

Riemannian Velocity and Acceleration Tensors/Vectors in Rotational Oblate Spheroidal Coordinates Based Upon the Great Metric Tensor

J. F. Omonile, P. B. Ojih, M. O. Alhassan & S. X. K. Howusu · Asian Journal of Physical and Chemical Sciences · 2018

Since the time of Galileo (1564 - 1643), Euclidean geometry has been the foundation on which the theoretical formulations of all geometrical quantities in all orthogonal curvilinear coordinates in Physics and Mathematics were built. But with the discovery of the great metric tens...

Open access Research Article 10.9734/AJOPACS/2018/40509

First-Principles Theoretical Study on Electronic Band Structure of Diamond and Graphite

S. G. Abdu, M. A. Adamu & M. Y. Onimisi · Asian Journal of Physical and Chemical Sciences · 2018

The total ground state energy and electronic band structure of Graphite and Diamond were calculated in this work using FHI-aims (Fritz Haber Institute ab initio molecular simulations) Density Functional Theory (DFT) code. The density functionals used are the generalised gradient...

Open access Research Article 10.9734/AJOPACS/2018/41779

Soil Surface Treatments and Moisture Characteristics of a Luvisol under Cowpea (Vigna unguiculata) in the Transition Zone of Ghana

Kwabena Kyere, Kofi Agyarko, Bennete Osei Yaw & Emmanuel Kwasi Asiedu · Asian Journal of Physical and Chemical Sciences · 2018

Productivity of cowpea is strongly regulated by the availability of water and thus water the shortage can result in great yield losses. Field experiments were carried out at the University of Education, Winneba, Mampong campus to study the effects of grass mulch on moisture chara...

Open access Research Article 10.9734/AJOPACS/2018/34990

MHD Flow of Micropolar Fluid in a Porous Medium Provoked by Heat Function and Radiation

P. O. Nwabuzor, A. T. Ngiangia & E. O. Chukwuocha · Asian Journal of Physical and Chemical Sciences · 2018

The results were obtained graphically with coding in Mathematica. Computational work was carried out  for sufficient ranges of parameters of the study namely Schmidt, Radiation, Prandtl, Heat function , Microrotational  Modified Grashofs number  Electroconductivity, Magnetic fiel...

Open access Research Article 10.9734/AJOPACS/2018/41155

Implicit Four Step Stormer-cowell-type Method for General Second Order Ordinary Differential Equations

S. J. Kayode & O. S. Ige · Asian Journal of Physical and Chemical Sciences · 2018

An implicit four step stormer-cowell-typed method for direct solution of general second order ordinary differential equations is proposed in this study. In the derivation of the method, a combination of chebyshev and legendre polynomials was used as basis function to generate sys...

Open access Research Article 10.9734/AJOPACS/2018/40400

Revisiting Bohr’s Theory via a Relationship between Magnetic Constant and Bohr Radius of Any Element

Ikechukwu I. Udema · Asian Journal of Physical and Chemical Sciences · 2018

Objectives: The purposes of this research are 1st, to show that there is a relationship between magnetic constant and Bohr radius for any atom and 2nd, to verify this relationship with illustrative calculations. Place and Duration of Study: Department of Chemistry and Biochemistr...

Open access Research Article 10.9734/AJOPACS/2018/41232

Predictor-Corrector Linear Multistep Method for Direct Solution of Initial Value Problems of Second Order Ordinary Dierential Equations

S. J. Kayode & J. O. Adegboro · Asian Journal of Physical and Chemical Sciences · 2018

In this paper, we considered method of interpolation of the approximate solution and collocation of the differential system to generate a continuous linear multistep method. The basic properties of the method was investigated and found to be zero stable, consistent, P-stable and...

Open access Research Article 10.9734/AJOPACS/2018/41034

A Brief Overview on Chemical and Physical Aspects of Archaeological Dating Techniques and Their Applications in Dating Construction Materials and Buildings

S. P. Dunuweera & R. M. G. Rajapakse · Asian Journal of Physical and Chemical Sciences · 2018

This review is devoted to answering the important question of physical and chemical aspects of dating archaeological remains, particularly, ancient structures. Basically, stratigraphy and typology are considered relative dating techniques while radiocarbon dating, dendrochronolog...

Open access Research Article 10.9734/AJOPACS/2018/40349