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Search Results: 1 - 10 of 5311 matches for " Jibrin Mohammed Kaura "
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Reliability-Based Optimum Design of Double Angle Web Cleats in Steel Portal Frames Using Genetic Algorithms
Salisu Dahiru,Jibrin Mohammed Kaura,Idris Abubakar
Journal of Engineering and Applied Sciences , 2012, DOI: 10.3923/jeasci.2012.60.66
Abstract: It is no longer sufficient to design a system that perform the required task satisfactorily. It is essential to design the best system that is efficient, versatile, unique and cost-effective system. This study presents a developed computer program in Fortran 90 (Opticon 2011) for the optimum design of double angle web cleats in steel portal frames using evolutionary algorithms. The BS 5950 part 1, design criteria was adopted. The optimum design uses reliability technique and the uncertainties associated with the basic design variables were fully accommodated. The optimum design displayed a significant cost saving as compared with the JSC design values.
Approximate Analytical Solution to Temperature Profile in a Solid Composite Heated by a Pulsed Laser  [PDF]
Sani Jibrin, Mohd Maarof Moksin, Mohd Shahril Husin, Mohammed Yusuf Waziri, Azmi Bin Zakaria, Zainal Abidin Bin Talib
Engineering (ENG) , 2013, DOI: 10.4236/eng.2013.55060
Abstract: The flash technique of thermal diffusivity measurement applied to composite materials is dependent upon the success at deriving and solving the associated heat diffusion equation for the particular boundary problems of the experiment. Orthogonal expansion technique and the Green’s function approach are easier and straight forward for deriving and solving such equations, but the solutions converge very slowly for small times and hence cannot be used for numerical calculations. The Laplace transformation technique on the other hand has advantage of allowing for the making of small time approximation in order to obtain solutions that are very rapidly convergent. The principle difficulty of this technique is in the inversion of the resulting transform from s to t domain. Inversion by contour integration requires a lot of mastery in integral calculus and the simplest method is therefore to look up for the transform in the standard Laplace conversion table. At first look not all subsidiary equations can be converted using the Laplace transform conversion table; in this work however, we present the mathematical analysis by means of which analytical solutions to heat diffusion problem in composite media; hitherto only transformed via contour integration, is obtained directly from the Laplace transform conversion tables.
From Garbage to Biomaterials: An Overview on Egg Shell Based Hydroxyapatite
Idris Abdulrahman,Hamzat Ibiyeye Tijani,Bashir Abubakar Mohammed,Haruna Saidu,Hindatu Yusuf,Mohammed Ndejiko Jibrin,Sulaiman Mohammed
Journal of Materials , 2014, DOI: 10.1155/2014/802467
Abstract: The conversion of waste obtained from agricultural processes into biocompatible materials (biomaterials) used in medical surgery is a strategy that will add more value in waste utilization. This strategy has successfully turned the rather untransformed wastes into high value products. Eggshell is an agricultural waste largely considered as useless and is discarded mostly because it contributes to pollution. This waste has potential for producing hydroxyapatite, a major component found in bone and teeth. Hydroxyapatite is an excellent material used in bone repair and tissue regeneration. The use of eggshell to generate hydroxyapatite will reduce the pollution effect of the waste and the subsequent conversion of the waste into a highly valuable product. In this paper, we reviewed the utilization of this agricultural waste (eggshell) in producing hydroxyapatite. The process of transforming eggshell into hydroxyapatite and nanohydroxyapatite is an environmentally friendly process. Eggshell based hydroxyapatite and nanohydroxyapatite stand as good chance of reducing the cost of treatment in bone repair or replacement with little impact on the environment. 1. Introduction Agricultural waste is any waste being generated from different farming processes in accumulative concentration. Adequate utilization of agricultural waste reduces environmental problems caused by irresponsible disposal of the waste. The management of agricultural wastes is indispensable and a crucial strategy in global waste management. Waste of any kind in the environment when its concentration is in excess can become a critical factor for humans, animals, and vegetation [1]. The nature, quantity, and type of agricultural waste generated vary from country to country. The search for an effective way to properly manage agricultural waste will help protect the environment and the health quality. For sustainable development, wastes should be recycled, reused, and channelled towards the production of value added products. This is to protect the environment on one side and on the other side to obtain value added products while establishing a zero waste standard. The utilization of the waste is a priority today in order to achieve sustainable development [2]. One way that adds great value to agricultural waste is its utilization as a biomaterial used in medical surgery and therapeutics. The production of biocompatible material or biomaterial from agrowaste has added a different dimension to the utilization of agricultural waste for value added product. This is possible because some of this waste
Financial Management Of Imminent Business Prospect In Punjab
Puja Kaura
Asian Economic and Financial Review , 2011,
Abstract: A survey study was conducted to study the profitability index of apicultureenterprise in Pathankot, Gurdaspur district, Punjab. Data for period of a year (2009-9010) was collected by interviewing randomly selected 10 beekeepers from asample survey. Profitability Index of apiculture was computed by including andexcluding the revenue obtained from colony selling. 3% of beekeepers sold beecolonies for earning income which was very less. The study revealed thatProfitability Indices of apiculture were 2.81 and 1.88 in the case of inclusion andexclusion of the income received from the colony selling, respectively. It showedthat apiculture industry was running in profit in both cases. But in former case, thePI is higher than the latter case therefore in order to find that which investmentoption is better (Beekeeping with colony selling or not colony selling) the PaybackPeriod technique of investment evaluation is used. The research findings showedthat in former case the investment would take 0.35 years to pay back and in lattercase it would take 0.53 years to payback the returns hence it was concluded thatbeekeeping with colony selling was better investment option and was a good sourceof income . Further, it is suggested that Govt. of Punjab should encourage theapiculture by providing timely loan facilities at reasonable interest rates, arrangingtraining programmes which create the awareness of the latest techniques to farmersand how to keep the financial records so that they are able to assess which optionwill yield them higher and faster returns as this is cheapest and good source ofincome for rural people in Pathankot .
A Study of Variation in Physiognomic Characteristics of Guinea Savanna Vegetation
Abdullahi Jibrin
Environment and Natural Resources Research (ENRR) , 2013, DOI: 10.5539/enrr.v3n2p52
Abstract: Variation in structural composition of Guinea savannah vegetation was investigated in Kpashimi forest reserve, Niger State, Nigeria. Field work inventory was conducted to determine the current status of the vegetation physiognomic characteristics of the six physiographic units in the study area; comprising of Riparian Forest, Savannah Woodland, Degraded forest Scrubland, Grassland, and Bare surface. Parameters measured include tree density, trunk diameter, basal area, tree density, tree species diversity, tree height, crown cover, shrub cover, and grass cover. The aim of the study is to determine and compare the variation in structural characteristics of the vegetation of the study area. Analysis of variance (ANOVA) showed significant differences amongst virtually all the parameters among the physiographic units. In general, the landscape of the forest reserve has been influenced significantly by anthropogenic disturbance and the resulting landscape vegetation cover is a mixture of natural and human managed mosaics that vary in shape, size, structure and arrangement. Thus, drastic measures need to be taken so as to reverse the trend and to mitigate the far reaching ecological consequences of vegetation degradation as highlighted in this study. Access to UNFCC carbon credit is hereby recommended for the management of the study area.
Parle Milind,Kaura Sushila
International Research Journal of Pharmacy , 2012,
Abstract: Rheumatoid Arthritis (RA) is a chronic auto-immune disease characterized by painful inflammation of the joints and surrounding tissues, leading to long term disability. Rheumatoid arthritis can begin at any age but has its peak between 35 to 55 years of age. RA shows hereditary linkage. Women and smokers are most often affected. The patient doesn’t feel any symptoms during inactive state of the disease. RA progresses in a symmetrical pattern involving both the sides of the body. Once rheumatoid arthritis is confirmed by diagnosis, treatment should start as early as possible. The treatment for rheumatoid arthritis focuses initially on reducing the joint inflammation and pain with the use of analgesics and anti-inflammatory agents. In the next stage, joint function is restored by administering Disease Modifying Anti-rheumatic Drugs (DMARDs) thus preventing joint deformity. Treatment is generally based on the degree of severity of RA. Patients with mild RA are advised to take rest and are prescribed analgesics and anti-inflammatory medicines, which include fast acting drugs like NSAIDs. Slow acting drugs like (DMARDs) such as methotrexate, sulfasalazine, lelflunomide etc., and Body’s reaction modifiers (BRMs) such as rituximab, anankinra, infliximab etc., are reserved for patients suffering from moderate to severe RA. The patient is advised to undertake regular exercises like walking, stretching, swimming or cycling, which are aimed at reducing body weight. The patient suffering from arthritis can carry out his normal day-to-day activities with the help of proper medication and regular exercise.
Parle Milind,Kaura Sushila
International Research Journal of Pharmacy , 2012,
Abstract: Green Chilli is the life and soul of all delicious Indian dishes. It has been cultivated for thousands of years. Green Chilli is a fruit of the flowering plant Capsicum frutescens. Unripe fruits are green in color. On ripening, they attain the red shade. Green Chilli forms an excellent combination of healthy ingredients and essential nutrients. It is a good source of vitamins (A, C, B, E and P), minerals (iron, magnesium and potassium), dietary fibersand macronutrients. Green Chilli is famous for its intense pungent taste, which is provided by its active constituent Capsaicin. Capsaicin is generally recognized as a powerful local stimulant with no narcotic effect. Apart from its traditional and culinary uses, its therapeutic and pharmacological actions are noteworthy. Medicinally, Green Chilli plays a prominent role as an immunity booster, anti-cancer, anti-ulcer, analgesic, anti-inflammatory, anti-epileptic and anti-hemorrhoidal agent. It is helpful in the management of burns, psoriasis and chronic migraine. It is also beneficial in heart disorders and diabetes.
Boundary S-matrix in a (2,0) theory of AdS_{3} Supergravity
Payal Kaura,Bindusar Sahoo
Physics , 2008, DOI: 10.1088/1126-6708/2008/12/002
Abstract: We will discuss two inequivalent generalizations of the standard (2,0) supergravity action gr-qc/9501018 to include gravitational Chern-Simons term. One is in the first order formalism where we treat \omega_{M}^{ab} as independent and the other is in the second order formalism where \omega_{M}^{ab} is determined in terms of other fields via a standard constraint equation. The two theories have different equations of motion and the solutions to the equations of motion of the first order theory spans only a subset of those of the second order theory. We will be interested in computing the boundary S-matrix, describing correlation functions in a dual conformal field theory, in this sector and hence we use the equations of motion coming out of the first order theory. We restrict ourselves to the gauge+fermionic sector of the theory to compute the boundary S-matrix. We will also look at the effect of higher derivative terms on the boundary S-matrix obtained using the standard supergravity action.
An Interior Point Method for Solving Semidefinite Programs Using Cutting Planes and Weighted Analytic Centers
John Machacek,Shafiu Jibrin
Journal of Applied Mathematics , 2012, DOI: 10.1155/2012/946893
Abstract: We investigate solving semidefinite programs (SDPs) with an interior point method called SDP-CUT, which utilizes weighted analytic centers and cutting plane constraints. SDP-CUT iteratively refines the feasible region to achieve the optimal solution. The algorithm uses Newton’s method to compute the weighted analytic center. We investigate different stepsize determining techniques. We found that using Newton's method with exact line search is generally the best implementation of the algorithm. We have also compared our algorithm to the SDPT3 method and found that SDP-CUT initially gets into the neighborhood of the optimal solution in less iterations on all our test problems. SDP-CUT also took less iterations to reach optimality on many of the problems. However, SDPT3 required less iterations on most of the test problems and less time on all the problems. Some theoretical properties of the convergence of SDP-CUT are also discussed.
Analysis of Irrigation Water Quality at Kadawa Irrigation Project for Improved Productivity
AR Sanda,Jibrin Dibal
International Journal of Environment , 2014, DOI: 10.3126/ije.v3i3.11082
Abstract: In the face of water scarcity and the several negative consequences, such as water wastage, flooding, water logging, soil losses and production losses, conserving the finite amount of fresh water is a must. The quality of irrigation water must therefore be ascertained. The chemical quality of three sources of irrigation water from canal and drainage water, namely drainage water, fresh irrigation water from canal, and drainage/irrigation water mixture, were analyzed from Kadawa irrigation Project for year 2013 and 2014 cropping seasons, with the view to evaluating the potential risks associated with their use in irrigation and hence their suitability or otherwise for irrigation purposes. The analysis revealed that the use of drainage water alone for irrigation may result in problems associated with salinity, while a blend of drainage/irrigation water in the ratio of 1:1 is a viable means of water conservation and a good means of crop production. DOI: http://dx.doi.org/10.3126/ije.v3i3.11082 International Journal of Environment Vol.3(3) 2014: 235-240
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