Volume 6, Issue 12, December 2015 Edition


Publication for Volume 6, Issue 12, December 2015 is in-process.

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Effective Prediction of Mobile Radio Pathloss in Warri City Clutter of Nigeria[ ]


The basic task of radio link design requires the operator to foresee the coverage of the proposed system based on the impact of the clutter. This work is aimed at obtaining a suitable path-loss prediction model for the city of Warri by comparing the COST -231 Walfish Ikegami Model (WIM,) Hata Model, CCIR Model and the Free Space Model. Measurement of Received Signal Level (RSL) was conducted in three locations (Enheren, Refinery road, and Okwokuku) representing Urban, Suburban and Rural terrains respectively. The measurement of RSL was carried using Tecno handset with net monitor software running in it while Germin GPS was used for the propagation path-length. The path-loss from field data and that from existing models were analysed and compared using MATLAB (7.5). The result of the analysis showed that the Walfish Ikagami Model (WIMNLOS) gave a very close correlation with the measured path-loss in the three locations considered and therefore is preferred to other prediction models in the city of Warri.

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Upgrading Nigeria Bitumen for constructing of pavements[ ]


The occurrence of bitumen deposits in Nigeria has been estimated to be about 42 billion tonnes, almost twice the amount of existing reserves of crude petroleum according to Nigerian Investment Promotion Commission (NIPC). The failures of the Nigeria bituminous pavements are not only due to increase in traffic but also due to extreme climatic conditions prevailing in the country. For proper planning and usage of Nigeria bitumen for construction of roads in Nigeria, there is the need to upgrade and optimise the bitumen in order to meet the foreign international standard for constructing Nigerian pavements. The polymer modification of the bitumen can improve the quality of binders and enhance the properties of binders used for the construction of pavements.

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Determination of Lame’s Constants of Surface soils and Shallow Sediments from Seismic Wave Velocities[ ]


This paper presents the results of seismic compressional, P- and shear, S-wave measurements carried out on the unconsolidated top-soil at the different locations of the study area to determine Lame’s constants (µ and ?). The seismic refraction method employing P-wave and S-wave sources were used to generate seismic energies that propagated through the subsurface. A 12-channel seismograph with signal stacking ability was used together with high frequency (100 Hz) geophones on the top-soil. The geophone intervals were set to 5 m at all the locations. The results of the findings based on these parameters were Lame’s first constant, µ (1.3751 x 108 N/m2 – 2.8989 x 108 N/m2) for first layer and (2.9294 x 108 N/m2 – 7.0209 x 108 N/m2) for the second layer; Lame’s second constant (-2.023 x 108 N/m2 – 2.7290 x 108 N/m2) for first layer and (-3.9762 x 108 N/m2 - 3.000 x 108 N/m2 ) for second layer. The low values of these constants are symptomatic of occurrence of ripable anisotropic materials in the locations where they occur. The average depth of the top and weathered zone should be removed and refilled with geomaterials that may be resilient to carry engineering loads.

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PSEUDOMYXOMA PERITONEI- A SURGEON’S NIGHTMARE- A CASE REPORT[ ]


Pseudomyxoma peritonei is a clinical term used to describe the finding of abundant mucoid or gelatinous material in the pelvis and abdominal cavity surrounded by fibrous tissue. Pseudomyxoma peritonei is a disease of the MUC expressing goblet cells that are specific for mucin production. Extracellular mucin accumulates dramatically in pseudomyxoma peritonei because the number of MUC2-secreting cells dramatically increases and because this MUC2 has no place to drain. It is most commonly secondary to a well-differentiated appendiceal mucinous neoplasm or other gastrointestinal primary and rarely, mucinous tumors arising from ovary.

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ASSESSMENT OF VLSI FFT FRAMEWORKS DIFFERENCE IN FLEXIBILITY, RAPIDITY, COMPLEXITY AND PROTOTYPING THE FRAMEWORKS FOR SOC TELECOM APPLICATION[ ]


This paper explains prototyping the integrated circuit of Fast Fourier Transform (FFT) for system-on-chip (SOC) telecommunication. There are three types of assessment of FFT frameworks proposed in wired or wireless OFDM standers in MIMO standers. The three type of framework are, 1. Fully parallel, 2. Pipelined cascade 3. In-place variable-size architecture, these frameworks have different trade-offs, like flexibility, rapidity, complexity and prototyping. The implementation of silicon and assessment with state-of-art prove the works for target application by output from each macro cell.

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Analyticity theorem and operation-transform formula for LAPLACE - MELLIN INTEGRAL TRANSFORM TO A CLASS OF GENERALIZED FUNCTION[ ]


We have Extended Laplace-Mellin Integral Transformation (LMIT) to a class of Generalized Function. In this paper we discuss the ‘Testing Function Space’ ?LM?_(a,b,c,d ) and its dual ??LM?^'?_(a,b,c,d ). We have proved that ?LM?_(a,b,c,d ) is ‘Complete Space’. We have derived some lemmas those are ‘?? E?^(-SL) M^(P-1)?LM?_(a,b,c,d )’ , ‘D(I) is a subspace of ?LM?_(a,b,c,d )’ and ‘?LM?_(A,B,C,D ) is a dense subspace of E(I)’ . ‘Analyticity Theorem’ of Laplace-Mellin Integral Transformation has been derived and ‘Some Operation transformation formula’ for this transform has been proved.

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Synthesis of Schiff bases of Isatin and 5-bromoisatin with 2-aminobenzyl amine and their complexes[ ]


The present work include preparation of two new Schiff bases formed from the condensation of2-aminobenzylamine with isatin and 5-Bromoisatin. Complexes of Nickel(II),Cobalt(II) and Chrome(III)with these Schiff bases were prepared .these compounds and theirs Complexes were characterized by elemental analyses and FT-IR ,1HNMR and Mass spectra .the analyses of Ni(II),Co(II), Cr(III)Complexes are six-coordinate and have octahedral structure.

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Analysis of the Cause(s) of the Collapse of a 3-Storey Building in Ile-Ife, Osun State, Nigeria[ ]


This study sets out to investigate the remote cause(s) leading to the collapse of a 3-Storey Building in Ile-Ife. The study analyzed the original design submitted for approval and construction, the report of the Lagos State Materials Testing Laboratory (LSMTL) and the research re-design of the Structural elements required for the stability of the building. The results show that the building was under-designed in critical areas of the building elements such as; columns, beams, and slabs. Also, the contractor did a shoddy work either out of greed, incompetence or lack of experience. It was also, noted that inappropriate materials were used by the contractor in the construction of the building. Reinforcement provided at the first, second and third floors of the building were adequate but the design did not take into consideration hogging and cantilevers. This may result in over-turning leading to collapse of the building. The results show that the reinforcement bars provided for the beams were inadequate; it was also observed that the characteristic compressive strength; fcu(20N/mm2) recommended for reinforced concrete was not met by the constructors. The survey therefore concludes that; under-design, use of low grade concrete, poor concrete mix, poor workmanship, lack of proper supervision among other things contributed to the demise of the 3-storey building.

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Slotted Microstrip Patch Antenna at 60GHz for Point to Point Communication[ ]


A compact slotted planar square ring-shaped micro strip antenna simultaneously suitable for point to point communication at 60 GHz is presented. The antenna is simulated by the software CST. CST, computer simulated technology simulator is employed to analyze the proposed antenna and simulated results on return loss, the E and H plane radiation pattern and polar plot gain is presented. The simulation and measurement result met the IEEE 802.1lad standard operate in 60 GHz band for point to point communication. The measured results shows a return loss of -26.69 db and the voltage standing wave ratio VSWR < 2 at 60 GHz indicating that the antenna is a good candidate for very high speed WLAN applications.

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Association of TP53 [Arg72Pro] Gene Polymorphism and Breast Cancer Risk in Iraqi female patients[ ]


Breast cancer is considered the first or second most common cancer and major cause of death in women globally. The TP53 tumor suppressor gene is one of the most commonly mutated genes in all types of human cancer including breast cancer. numerous studies showed that the significant association between Tumor suppressor protein TP53 gene polymorphism (Arg72Pro: rs 1042522) and the risk of breast cancer. We aimed to study and investigate the association of TP53 (Arg72Pro) gene polymorphism with the risk of breast cancer. The genotypes and allele frequencies of TP53 (Arg72Pro) gene polymorphism were determined by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis in 300 breast cancer patients and 200 controls after extraction of DNA from blood samples of all participants.

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JUVENILES AND HEINOUS CRIMES IN INDIA -- WITH REFERENCE TO RECENT TRENDS[ ]


The incidence of juveniles being booked for heinous crimes, including murder and rape, in TamilNadu is growing and the law enforcement agencies are not very much concerned about the issue .Counsellors working in the field and other experts say one probable reason why many juveniles end up committing serious offences could be that they are not capable of accepting failure This paper tries to review the present conditions with regard to Juveniles Crimes in Tamilnadu one of the,states of India and measures to be taken immediately for the welfare of the Juveniles as well as the Society as a whole.

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TUBE DRAWING IN DIE-LESS CONICAL PRESSURE UNIT[ ]


A theoretical study of the die-less tube sinking was carried out in which the conventional die is replaced by a die-less conical orifice reduction unit. The process involves pulling the wire through the conical die-less unit which is filled with a polymer melt, the pulling action causes yielding of the continuum and a reduction in area is then obtained.

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Kaluza-Klein Cosmological Models With Anisotropic Dark Energy and Special Form of Deceleration Parameter[ ]


The exact solutions of the Einstein field equations for dark energy in Kaluza-Klein metric under the assumption on the anisotropy of the fluid are obtained by applying special form of deceleration parameter in General Relativity. The geometrical and physical aspect of the model is also studied.

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Spectrophotometric Estimation Of Drugs Using N-BromoSuccinamide And Indigo Carmine Couple[ ]


Simple, specific, accurate and precise UV–visible spectrophotometric methods have been developed for the estimation of five drugs viz., Cetrizine (CET), Esmolol (ESM), Rosuvastatin (ROS), Terazocin (TRZ) and Voriconazole(VOR). These methods involve the addition of a known excess of NBS to the drugs in acid medium followed by estimation of residual NBS by reacting with a fixed amount of Indigo Carmine and measuring the absorbance at 610nm. The proposed methods were found to be successful for the estimation of these drugs in bulk and their formulations. The results of analysis have been validated statistically for linearity, accuracy, precision, LOD and LOQ.

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A comparative study of outcomes of unipolar versus bipolar hemi-arthroplasty in geriatric age group- a study of 60 cases[ ]


Femoral neck fracture, recognised since the time of Hippocrates, still remains a vexing clinical problem for orthopaedic surgeons. Fracture neck of femur are usually sustained by elderly persons from a trivial fall. It has been predicted that by 2050 the number of hip fractures would triple. As a consequence, proximal femur fractures are a significant cause of morbidity and mortality in all age groups, especially in elderly, whether to use bipolar or monopolar hemi replacement arthroplasty still remains a dilemma.

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