Table of Contents

Flood Studies in Kaduna, Nigeria using Regression Analysis with

SPSS Statistical Package

Abubakar Sani Kazaure, Lawal Sani, Yunusa Andaa Salihu Waheed

Jimoh Adewale, and Mohammed Kabir Lawal                                                1-17

A Multi-Dimensional Internet Security

Eloho Goodluck Okeno                                                                                    18-38

An Investigation on the Electronic Structure and Magnetic

Properties of Cral Full Heusler Alloy

 J. Sambo M.A .Ahmadu A. Magaji                                                                  39-57

Solar Sun Tracking System: A Model for Sustainable Electricity

Supply for Industrial and Economy Development in Nigeria

Taneh, Anthony Nadum, Saana Kpegara & OKorieocha Christopher N.         58-73

Table of Contents

The Impact of Internet of Things (IoT) in a Manufacturing Sector

Rilwanu Yusuf Gigane;  Shehu Sidi Abubakarand Abubakar Yusuf 1-15                

Investigating the Performance Efficiency of a PV Powered Solar Dryer

(A Case Study of Damaturu, Yobe State – Nigeria)

F. M. Mustapha and  A. Adamu                                                                       16-32

Road Construction is the Key for Urban Development

Boyce A. Odoko     33-39                                                                                           

Estimators of Parameters of Linear Models with Auto Correlated

 Disturbances in Ordinary Least Squares (OLS)

Uchendu, Bartholomewa & Ibeh Gabreil C                                                     40-52

Modelling an Empirical Equation for Analysing Relative Permeability

in the Niger Delta (XYZ) Reservoirs

Akpoturi Peters and Henry Idudje 53-63                                                                  

Recovery and Production of Lubricating Grease from Nigerian

Tar Sands Heavy Oil

Akpoturi Peters and Henry Idudje 64-71                                                                  

MODELLING AN EMPIRICAL EQUATION FOR ANALYSING RELATIVE PERMEABILITY IN THE NIGER DELTA (XYZ) RESERVOIRS

Akpoturi Peters and Henry Idudje

Department of Petroleum Engineering

 Federal University of Petroleum Resources, Effurun

Email; Petersakpoturi1212@gmail.com

ABSTRACT

Relative permeability for a fluid is the relative flow of that fluid when its saturation in the reservoir rock is less than a hundred percent. It is also the ratio of effective to absolute permeability at a given saturation condition of the rock pore spaces and the wetting characteristics of the fluid/rock surfaces. Direct relative permeability data is very difficult to determine for the Niger Delta reservoirs because of. —      Problems connected with obtaining sufficient and representative data for the area;—      No comprehensive work on this determination has so far been done in the area;—      Existing correlations from literature gives inaccurate values for the area.

In this investigation, empirical equations for two phase relative permeability data (oil/water, gas/oil systems), are developed by processing a large set of core data samples from special core analysis of various wells of the Niger Delta reservoirs.

The generalized empirical equation:

Krf = RWeλs, serves as a:—      First estimate of the relative permeability values for Niger Delta reservoirs which have little or no available data information.—      Means of cross-checking relative permeability values obtained through other methods.—      Means of obtaining the relative permeability data when good estimate of fluid saturations are possible.—      Good and economical starting set of relative permeability data during history matching phase of reservoir simulation for the Niger Delta reservoirs.

Keywords; Relative permeability, reservoirs, Rocks, empirical equations, and fluids

ROAD CONSTRUCTION IS THE KEY FOR URBAN DEVELOPMENT

 Boyce A. Odoko

Department of Architecture,

National institute of Construction Technology Uromi. Edo state.

E-Mail: odokoarch@yahoo.com

ABSTRACT

Road construction encourages development in urban centers and rural areas of any society. Construction of good reliable road network and pedestrian walkways provides the general public, access to economic activities. Businesses always locate wherever a road is constructed because the road is the means that makes it possible for people to have access to the business activities. Road network brings positive development in urban or rural area. Provision of street cape with pedestrian walkways that are equipped with pedestrian light poles, seating places, trash receptacles, trees to provide shade and pedestrian cross-walk will create pleasant environment for the inhabitants. Improvement, with such amenities, will not only create positive psychological effect on the people, it will also give positive image and positive picture of good urban development. It will encourage economic activities as well. For example, Walmart, a major retail store in the United States of America, whenever, it opens a new store at any particular location, several other businesses locates around Walmart. This is because there is always a good access road leading to the mega Walmart store. It is the good road that makes it possible for the general public to gain access to the Walmart store, the same road also gives access to the other businesses that locate around Walmart. It is also, true from my practical experience in the United States of America, whenever a major retail Mall is located at any place, several other businesses are opened around the Mall because of the good access road provided to the Mall. For example, Gwinnett Place Mall and Mall of Georgia, located in the City of Lawrenceville, Gwinnet County, a suburban area of Atlanta, Georgia, in the United States of America. Because of the excellent road network around these malls, several businesses have located around these malls.

Keywords: Road Construction, Development, Urban and Rural, Good Roads, Access Roads, Retail Mall, Goods and services, Economic growth, Effective reliable road infrastructure, Urban growth, Urban centers and market place.

ESTIMATORS OF PARAMETERS OF LINEAR MODELS WITH AUTO CORRELATED DISTURBANCES IN ORDINARY LEAST SQUARES (OLS)

Uchendu, Bartholomew A. & Ibeh Gabreil C

Department of Maths/Statistics

Federal Polytechnic, Nekede Owerri, Nigeria

Email: Uchendubartholomew@yahoo.com; gabmicchuks@yahoo.com

ABSTRACT

The consequences of applying Ordinary Least Squares to a relationship with autocorrected disturbances are qualitatively similar to those already derived for the heteroscedastic case, namely unbiased but inefficient estimation and invalid inference procedures. As in the case of heteroscedasticity, in the presence of autocorrelation, the Ordinary Least Square estimators are still linear unbiased as well as consistent and asymptotically normally distributed, but they are no longer efficient (ie, minimum variance). In the case of heteroscedasticity, we distinguish two cases and the possible cause and sources of autocorrelation. The violation of the assumptions of normality may have significant consequences in applying Ordinary Least Squares and such consequences include substantial loss in efficiency, inflating the precision or accuracy of the estimators by underestimating the standard error of β. Moreover, violating of the assumptions of normally of the error term is important in econometric analysis. If this assumption is violated, then the basis of hypothesis testing breaks down. In this direction, a large number of possible tests for normality and robust estimator have been suggested. The assumption of lack of autocorrelation or serial correlation of the error term implies that the disturbance covariance at all possible pairs of observation points are zero. Violation provides the basis of for this research because it affects the consistency of the Ordinary Least Square estimators. Models with such disturbances are widespread, as applied econometrics especially in modeling of economic data.

Keywords: Least squares, Estimator, OLS, Minimum Variance, and Error Term

INVESTIGATING THE PERFORMANCE EFFICIENCY OF A PV POWERED SOLAR DRYER (A CASE STUDY OF DAMATURU, YOBE STATE – NIGERIA.)

F. M. Mustapha and A. Adamu

Department of Physics,

University of Maiduguri

Email: fatimamuhammadmustaphaonline@gmail.com

ABSTRACT

In this paper, samples of chili and tomato were used to focus on performance comparison between open air drying and inside a PV powered solar dryer. The hourly system performance of the PV powered solar dryer has been measured for several days in Damaturu (Latitude: 11.7470⁰ N, Longitude: 11.9662⁰ E), Yobe state – Nigeria and the drying efficiency was calculated on the basis of weight change, drying time, heat gain and moisture removal. The results obtained showed that the dryer efficiency are 15% and 16% for tomato and chili respectively, while for open air drying the efficiency was found to be 10% and 13% for tomato and chili respectively. These results showed vast difference between open drying and drying inside a PV powered solar dryer. Thus, base on these results it can be concluded that the dryer is more efficient way of preserving vegetables food than the open air drying. 

Keywords: Solar Energy, Drying Process, Moisture Removal, Temperature, Efficiency

THE IMPACT OF INTERNET OF THINGS (IoT) IN A MANUFACTURING SECTOR

Rilwanu Yusuf Gigane;  Shehu Sidi Abubakarand Abubakar Yusuf

Department of Computer Science, Umaru Ali Shinkafi Polytechnic, Sokoto, Nigeria;

Department of Mathematics and Statistics, Umaru Ali Shinkafi Polytechnic, Sokoto;

Department of Computer Science, School of Natural and Applied Sciences, Zungeru.

Email: rilwangigane@gmail.com; lynkcd@gmail.com; abukagarayusuf@gmail.com

ABSTRACT

Manufacturing of goods involves a lot of work and requires machinery for connectivity and efficiency. This is achievable through the use of well-connected and designed Machinery communicating together to achieve a predefined goal. Internet of things within the manufacturing sector is the key to achieving the entire manufacturing goal. Recent studies revealed the applicability of internet of things in many areas of human endeavours by allowing and providing method of intelligently connecting devices for resource sharing. The objective of this paper is to outline the impact of internet of things within the manufacturing sector. The objective is attainable through discussing and identifying what is required to enhance a positive functionality of internet of things with the support of an analysis of required architecture, resources and capabilities. Also the evolution and application of manufacturing system structure is discussed to help identify recent advances in Information technology and the requirements of decision support systems in advanced manufacturing. Exploration of all the above helped in identifying the technological gaps in relation to adopting Internet of things as an infrastructure of a manufacturing system. Finally the related advantages, possible future works and associated challenges are discussed.

Keywords: Advanced Manufacturing Systems (AMSs), Internet of things (IoT), Cloud Computing (CC), Cloud Manufacturing (CMfg), Enterprise Systems (ESs)