Volume 5 Issue 07

 

Title

INDOOR ENVIRONMENTAL QUALITY (IEQ): A CASE STUDY IN TAYLOR’S UNIVERSITY, MALAYSIA

Author TIOW CHAI YEE
Source International Journal of Engineering and Applied sciences pp 01 - 11 Vol 05. No. 07, 2014
Abstract

This overall research comprised of the introduction to Indoor Environmental Quality (IEQ) and how IEQ influence the building occupants in Taylor’s University. Problems of the research was found out and relative objectives was established to carry out comprehensive research on the topic. Questionnaire is used as a method to collect data and analyse on these collected data subsequently. The factors which affect the occupants’ indoor environmental necessities and preferences were evaluated. Health effects of poor IEQ were assessed based on the questionnaire collected. ....

Keywords

Indoor Environmental Quality (IEQ), Indoor Air Quality (IAQ), thermal comfort, acoustic quality, lighting quality

 

 

Title

DEVELOPMENT OF GLASS COATING USING LIQUID EPOXIDISED NATURAL RUBBER

Author KARTHINI KANESTION, ABD. AZIZ M.A & NUR ATHIRAH M. B
Source International Journal of Engineering and Applied sciences pp 12- 16 Vol 05. No. 07, 2014
Abstract

Coatings applied to glass surfaces are an essential part of manufacturing in all parts of the glass industry. We present coating process to enhance the strength and reduce cost of the glass. Our approach is based on the glass coating using Liquid epoxidised natural rubber (LENR). One grades of ENR 25 having 25 mole % epoxidation were respectively used as the polymer coating. Toluene was used as the solvent to prepare the coating into solution for further testing. Coating on glass was carried out using a hand brush coating. For each coating sample, six composition of coating at various ENR with toluene ratio (1:15, 2:47, 2.5:50, 3:54, 4:60, . ....

Keywords

Glass, glass coating, liquid epoxidised natural rubber (LENR), natural rubber

 

 

Title

EXPERIMENTAL AND CFD ANALYSIS OF TURBULENT FLOW HEAT TRANSFER IN TUBULAR EXCHANGER

Author Hesham G. Ibrahim
Source International Journal of Engineering and Applied sciences pp 17 - 24 Vol 05. No. 07, 2014
Abstract

The phenomenon of forced convection with turbulent flow of industrial processes is complicated to develop analytically. The only key to the problem is empirical models and numerical solutions. Heat transfer coefficient (h) and friction factor are very important parameters for fluid flow systems due to their use in determining the heat transfer rate and the pressure drop of the system respectively. Many of coefficient formulas have been obtained from the application of simple statistical techniques to large datasets, taking into account several engine operational parameters and engine types. The resulting correlations provide reasonable estimates but perform poorly rather than extrapolated to novel concepts. ...

Keywords

Heat transfer coefficient; Turbulence flow; CFD simulation

 

 

Title

EFFECT OF POST-TEXTURED HEAT SETTING ON TEXTURED YARN PROPERTIES: COMPARISON BETWEEN AIR-JET AND STEAM-JET TEXTURED YARNS

Author WICKRAMASINGHE G.L.D, FOSTER P.W.
Source International Journal of Engineering and Applied sciences pp 25 - 32 Vol 05. No. 07, 2014
Abstract

Dimensionally stable textured filament yarns are recognized as having important attributes, which are suitable for fabric production and sewing threads. The most successful method of texturing to achieve the above yarn qualities is spun-like textured yarn produced from Air-jet texturing with post textured heat setting. Even though high pressure air has been used and established for manufacturing spun like textured yarns, there are no evidence on research work to investigations the suitability of other high pressure fluids such as steam and water. The objective of this research work was to use high-pressure steam in order to replace air in air- jets in the production of spun-like ...

Keywords

Air-jet texturing, Steam-jet texturing, heat setting, loop instability, shrinkage,

 

 

 

 

Volume 5 Issue 06

 

Title

AN EXPERT SYSTEM FOR DIAGNOSING FAULTS IN MOTORCYCLE

Author OLANLOYE, DAUDA ODUNAYO
Source International Journal of Engineering and Applied sciences pp 01 - 08 Vol 05. No. 06, 2014
Abstract

Most of the people especially in the Africa sub-region preferred using a 2-wheeled vehicle to a 4 –wheeled vehicle personally or for commercial purpose because it is easily affordable and the cost of maintenance is very cheap. This is so because of the poor state of economy in the region. ....

Keywords

Thermodynamics, expert system, Artificial Intelligence, Forward Chaining, CLIP

 

 

Title

EVALUATION OF THE RADIATION HAZARD INDICES AND EXCESS LIFE TIME CANCER RISK DUE TO NATURAL RADIOACTIVITY IN GROUND WATER IN MINING AREAS OF PLATEAU STATE.

Author W. E. MANGSET, E. E. IKE, L.D.CHRISTOPHER, A.O. SOLOMON AND S. P. MALLAM
Source International Journal of Engineering and Applied sciences pp 09- 23 Vol 05. No. 06, 2014
Abstract

The radiological implications of water intake from ground water supply in mining areas of Plateau State have been estimated. Fifty eight ground water samples (23 boreholes and 35 well samples) were randomly taken in two litres plastic containers within the Naraguta Topo sheet 168 covering the mining areas. About 10ml of Nitric acid was added to each sample at the point of collection for preservation. The samples were later evaporated and transferred into planchets. . ....

Keywords

Gross alpha, Gross beta, Radiation hazard indices, excess lifetime cancer risk, Plateau State.

 

 

Title

A NEW IMPLEMENTATION OF TAGUCHI'S METHOD

Author MOHAMMADALI TAVAKKOLI, MEHDI MOALLEM
Source International Journal of Engineering and Applied sciences pp 24 - 34 Vol 05. No. 06, 2014
Abstract

Taguchi's method is an efficient and important optimization method based on orthogonal array concept which offers systematic and efficient process. it causes a balance in experiments design as well. In this paper, a new implementation of Taguchi's method for shape optimization of electromagnetic devices is presented and applied to torque profile optimization of Double Stator Switched Reluctance Motor (DSSRM). ...

Keywords

Taguchi's Method, Optimization, Double Stator Switched Reluctance Motor, Torque Ripple, Design of Experiments, Shape Optimization

 

 

 

 

Volume 5 Issue 05 (NEW )

 

Title

DEVELOPMENT OF AN EFFICIENT LOAD MANAGEMENT SYSTEM FOR IMPROVED HEALTH CARE DELIVERY IN NIGERIA

Author DIKE, DAMIAN OBIOMA, UZOMA OSUJI AND DIKE, BLESSING CHINEMEREM/td>
Source International Journal of Engineering and Applied sciences pp 01 - 08 Vol 05. No. 05, 2014
Abstract

Epileptic supply of electrical power poses serious problem in the realization of improved health care delivery system in most third world countries. To address this problem most of the medical centers in these countries have resorted to the use of emergency power supplies, which are now used as almost normal power supply in Nigeria. Due to enormous cost arising from this overuse, incessant and often delayed manual switching between presumed emergency and normal power supplies, medical centers in these countries have not been able to respond to emergency needs of patients in critical conditions. In this work, therefore, a simplified load management scheme is developed for application in medical centers ....

Keywords

Automatic load scheduling, Energy efficiency, Load prioritization, Human machine interface, System monitoring

 

 

Title

MIXED-MODE VENTILATION AND THERMAL MASS: IS THIS THE FUTURE FOR SCHOOL CLASSROOMS IN OCEANIC CLIMATES?

Author ZOHREH SOLEIMANI, ANDREW SHEA, ZAKIEH SOLEIMANI.O.
Source International Journal of Engineering and Applied sciences pp 09- 19 Vol 05. No. 05, 2014
Abstract

This article investigates the performance of an innovative hybrid ventilation system applied to a secondary school classroom subject to current and future U.K. (London) climate data. The resilience of the occupied space with regards to the limiting of summertime internal air temperatures is evaluated for both thermally lightweight and heavyweight building envelope constructions. . ....

Keywords

Building Thermal Property, Dynamic Simulation, Energy Performance, Future Schools, Hybrid Ventilation

 

 

Title

EFFECT OF MAXIMUM VOLTAGE ANGLE ON THREE-LEVEL SINGLE PHASE TRANSFORMERLESS PHOTOVOLTAIC INVERTER PERFORMANCE

Author MUHAMMAD IRWANTO
Source International Journal of Engineering and Applied sciences pp 20 - 29 Vol 05. No. 05, 2014
Abstract

This paper presents a new topology of three-level single phase transformerless photovoltaic inverter (TPVI). It consists of three main circuits; they are a pulse driver circuit, a full bridge inverter circuit and a power factor correction (PFC) circuit that have functions as production of pulse waves, to develop alternating current (AC) waveform and to stabilize voltage of photovoltaic (PV) array, respectively. The TPVI is installed in front of Centre of Excellent for Renewable Energy (CERE), Universiti Malaysia Perlis, in Northern Malaysia. Its main energy source is a PV array that consists of three unit PV modules, each unit has 81 V, 60 W. In this research, ...

Keywords

Transformerless PV inverter, AC waveform, Solar irradiance, Temperature.

 

 

Title

MODEL OF SICKLEMIA NO AUTONOMOUS WITH THE COEFFICIENT PERIODIC IN GENERAL

Author SÁNCHEZ S, FERNÁNDEZ A, LUNA HDEZ A, 4RUIZ A I, CARVALHO E F
Source International Journal of Engineering and Applied sciences pp 30 - 34 Vol 05. No. 05, 2014
Abstract

In that article is proved the theorem that reduces general periodic coefficient system to a system with the matrix of the constant lineal part and nonlinear part a function with coefficient periodic. It has given enough conditions for stability of the null solution of the system and is given a specific example in which the stability of system has to be obtained through polymerization function. ...

Keywords

Sickle cell; anemia; mathematical model; polymers.

 

 

Title

EXPERIMENTAL INVESTIGATION OF A PERSON’S BODY RESISTANCE

Author AVGEN A. GASPARYAN, MARINKA K. BAGHDASARYAN, GAGIK CH. KAZARYAN
Source International Journal of Engineering and Applied sciences pp 35 - 38 Vol 05. No. 05, 2014
Abstract

The boundary values of the current flowing through the person’s body are determined aimed at developing a device to protect a person from an electric shock. Experimental investigations are carried out, and the laws of the character of the change in the shocking current on the contact voltage are revealed. ...

Keywords

Experimental Investigations, Electric Current, Contact Voltage, Protecting Device, Person’s Body.

 

 

Title

SURFACE ROUGHNESS ON METAL POWDER INJECTION MOULDING AISI 316L STAINLESS STEEL BY ABRASIVE BELT GRINDING

Author BO-SUNG YANG, HSI-HSUN TSAI
Source International Journal of Engineering and Applied sciences pp 39 - 43 Vol 05. No. 05, 2014
Abstract

Grinding removes surface material to improve the surface by sandpaper to give a specific or desired roughness behind the grinding. The ultra-precision turning may enhance the surface roughness of the workpiece to Ra 10 nm, but the cost of this turning process is higher than the one of the traditional grinding and polishing processes. The wear devices such as the iwatch of Apple and Galaxy Gear of Sumsung use the stainless steel cases to increase the luster and the noble sense. The metal powder injection molding is therefore applied to fabricate the stainless steel cases in mass production. ...

Keywords

Surface Roughness, Belt Grinding, Stainless Steel, Metal Powder Injection Molding

 

 

Title

Modeling and simulation study of the use static VAR Compensator(SVC) for Voltage control in Nigeria transmission Network

Author Oyedoja, Kayode. Oyeniyi
Source International Journal of Engineering and Applied sciences pp 44 - 50 Vo l 05. No. 05, 2014
Abstract

Flexible AC Transmission System (FACTS) controllers, such as the Static Var Compensator (SVC), employ latest technology power electronic switching devices in electric power transmission systems to control voltage and power flow, and improve voltage regulation. There is increase in demand for electricity globally to feed the technology driven economy. Given a profit-driven, deregulated electric power industry coupled with increased load growth, the power transmission infrastructure is being stressed to its upper operating limits to achieve maximum economic returns to both generation and transmissions system owners. ...

Keywords

Voltage Stability, PSAT, Simulink, SVC, Power Transmission.

 

 

Title

CHARACTERIZATION OF HIGH PENETRATION OF PHOTOVOLTAIC SYSTEM

Author DIKE, DAMIAN OBIOMA
Source International Journal of Engineering and Applied sciences pp 51 - 61 Vo l 05. No. 05, 2014
Abstract

The world is facing an increase in environmental pollution basically as a result of combustion of conventional energy sources. Nigeria currently depends on conventional energy to supply power to her teaming population. Due to this, the energy generated does not meet demand. Consequently, power supply is erratic and areas isolated from the main cities lack power supply. Therefore, the need to develop a non-conventional source of energy generation such as solar cannot be over emphasized. ...

Keywords

High Penetration, Parameter Characterization, Solar Radiation, Photovoltaic Panel, Maximum Power Output.

 

 

 

 

Volume 5 Issue 04

 

Title

OVERVIEW OF POLY(LACTIC ACID) PRODUCTION WITH OIL PALM BIOMASS AS POTENTIAL FEEDSTOCK

Author TAN KEE LIEW, LIM SOO KING, CHAN JIUN HAUR, LOW CHONG YU
Source International Journal of Engineering and Applied sciences pp 01 - 10 Vol 05. No. 04, 2014
Abstract

Poly(lactic acid)(PLA), a bioplastic, is fast gaining attention as the substitute for petroleum derived plastics (petroplastics). However, at present, there is no commercialized PLA production plant that employs oil palm empty fruit bunch (EFB) as feedstock. The main purpose of this paper is to present an overview of PLA production and study the potential of EFB as feedstock to produce PLA. EFB is cheap biomass residue and abundantly available year long in a palm oil producing country like Malaysia. The paper first reviews the market potential of PLA taking into consideration the current developments in bioplastic and petroplastic industries. ....

Keywords

Poly(lactic acid), empty fruit bunch, fermentation, sustainability.

 

 

Title

USE OF RICE HUSK ASH AS PARTIAL REPLACEMENT FOR CEMENT IN CONCRETE

Author OBILADE, I.O.
Source International Journal of Engineering and Applied sciences pp 11- 16 Vol 05. No. 04, 2014
Abstract

This paper summarizes the research work on the properties of Rice Husk Ash (RHA) when used as partial replacement for Ordinary Portland Cement (OPC) in concrete. OPC was replaced with RHA by weight at 0%, 5%, 10%, 15%, 20% and 25%. 0% replacement served as the control. Compacting factor test was carried out on fresh concrete while Compressive Strength test was carried out on hardened 150mm concrete cubes after 7, 14 and 28 days curing in water. . ....

Keywords

Concrete, Rice Husk Ash, Compacting factor, Compressive strength

 

 

Title

IMAGE-BASED CLUSTERING ALGORITHM IN HIGH PRECISION REAL TIME LOCATION SYSTEM

Author JONG-RYUL YANG, MOON-KYOUNG KANG, JIMYUNG KANG
Source International Journal of Engineering and Applied sciences pp 17 - 20 Vol 05. No. 04, 2014
Abstract

An image-based clustering algorithm is presented for high-precision real time location system (RTLS). In RTLS, it is necessary to make each cluster consisting of two or more objects when these objects are close enough to meet a specific distance threshold for the minimum period of time. These clusters can show the user of the specific object. ...

Keywords

Clustering, Image-based Algorithm, Impulse Radio Ultra-wideband (IR-UWB), Real Time Location System (RTLS), Tracking Objects

 

 

Title

HARMONIZATION OF SPATIAL DATA RELATED TO FLOOD EVENTS

Author MARCELA GERGELOVÁ, ŽOFIA KUZEVICOVÁ, SLAVOMÍR LABANT, ŠTEFAN KUZEVIC
Source International Journal of Engineering and Applied sciences pp 21 - 25 Vol 05. No. 04, 2014
Abstract

The present contribution is devoted to the issue of harmonization of spatial information related to flood events. Solution for the above issues offers data models. In view of the draft composition of data model is the attention given to spatial categorization of data. Necessary part in the actual creation of data model represents the area of quality assessment data. Its importance is seen mainly in terms of the suitability of spatial data for the data model. ...

Keywords

data model, geographical database, spatial data, GIS, flood events,

 

 

Title

OPTIMIZING THE PRODUCTION CAPACITY OF VEHICLE NUMBER PLATE PLANT USING A TIME-BASED MATHEMATICAL MODEL

Author RICHARD PAUL CHUKWUGOZI
Source International Journal of Engineering and Applied sciences pp 26 - 30 Vol 05. No. 04, 2014
Abstract

This paper presents a case study in the development and application of a mathematical model to optimize the production capacity of Number plate plant in Nigeria which is into the production of different grades of Number plates. The motivation of this study was borne out of the need to clearly explain the role of time gap as an impetus for nefarious activities in the Vehicle Number plate production and how it can be tackled using time-based mathematical model. ...

Keywords

Number plate, production, time gap and model

 

 

Title

PARAMETER ESTIMATION FOR TWO WEIBULL POPULATIONS UNDER JOINT TYPE II CENSORED SCHEME

Author S.K. ASHOUR and O.E. ABO-KASEM
Source International Journal of Engineering and Applied sciences pp 31 - 36 Vol 05. No. 04, 2014
Abstract

In this paper, maximum likelihood estimation have been obtained for two Weibull populations under joint type II censored scheme, which generalize results of Balakrishnan and Rasouli (2008). Moreover, approximate confidence region are also discussed and compared with two Bootstrap confidence regions. A numerical illustration for these new results is given. ...

Keywords

Weibull distribution; Joint type-II censoring; Maximum likelihood estimation; Approximate confidence; Bootstrap intervals; Coverage probabilities.

 

 

Title

PROMOTING YOUNG GENERATIONS TO STEM FIELDS THROUGH THE BOY SCOUT MERIT BADGE UNIVERSITY IN EAST TENNESSEE

Author JINSEOK HONG
Source International Journal of Engineering and Applied sciences pp 37 - 41 Vol 05. No. 04, 2014
Abstract

The Sequoyah Council of the Boy Scouts of America (BSA) hosted its annual Merit Badge University at East Tennessee State University (ETSU) in Johnson City, Tennessee on January 25, 2014. Volunteers are students and faculty members from ETSU Surveying and Mapping Science (SAMS) program and local licensed surveyors from the States of Tennessee and Virginia. Seven Scouts registered for a Surveying merit badge to experience what Surveying was about. The annual Merit Badge University event allowed area Scouts to participate and receive their Surveying Badges as well as receive exposure to surveying field at an early age. The Merit Badge University offers the Scouts an opportunity to obtain a Surveying merit badge which ...

Keywords

Merit Badge University, Science Technology, Engineering, and Mathematics (STEM), Scouts, surveying merit badge

 

 

 

 

Volume 5 Issue 03

 

Title

ANALYSIS AND SIMULATION ON EFFECT OF HEAD AND BUCKET SPLITTER ANGLE ON THE POWER OUTPUT OF A PELTON TURBINE

Author CHUKWUNEKE J. L., ACHEBE C. H., NWOSU M. C., Sinebe J. E.
Source International Journal of Engineering and Applied sciences pp 01 - 08 Vol 05. No. 03, 2014
Abstract

This paper presents the effect of head and bucket splitter angle on the power output of a pelton turbine (water turbine), to harmonize the gas turbine sector to enhance the power generation by the use of efficient Hydro-electric power generation systems. Analysis and simulation using experimental data were carried out on pelton turbine head conditions, high head and low flow with increased pressure delivered more energy on the bucket splitter which then generates a force in driving the wheel compared to the result obtained from low head and high flow operating conditions ....

Keywords

Bucket Splitter Angle, Head, Hybrid Power, Nozzle, Pelton Turbine, Power Output, Simulation

 

 

Title

FORMULATION OF ‘PREDICTOR-CORRECTOR’ METHODS FROM 2-STEP HYBRID ADAMS METHODS FOR THE SOLUTION OF INITIAL VALUE PROBLEMS OF ORDINARY DIFFERENTIAL EQUATIONS

Author ABUBAKAR M. BAKOJI, ALI M. BUKAR, MUKTAR I. BELLO
Source International Journal of Engineering and Applied sciences pp 09- 13 Vol 05. No. 03, 2014
Abstract

This study focuses on the formulation of Predictor-Corrector Methods from 2-Step Hybrid Adams Methods for the solution of Initial Value Problems (IVP) of Ordinary Differential Equations (ODE). The methods are derived on both grid and off-grid points using the Multistep Collocations Schemes which are evaluated at some points to produce Block Adams Moulton and Bashforth methods respectively . ....

Keywords

Initial Value Problem, Linear Multistep Method, Predictor-Corrector, Ordinary Differential Equations, Multistep Collocations Scheme.

 

 

Title

STUDY AND ANALYSIS OF WORK POSTURES OF WORKERS WORKING IN A CERAMIC INDUSTRY THROUGH RAPID UPPER LIMB ASSESSMENT (RULA)

Author Chowdury M. L. Rahman
Source International Journal of Engineering and Applied sciences pp 14 - 20 Vol 05. No. 03, 2014
Abstract

Work posture is the position and condition of the body or body parts during the performance of work. Good work posture is as important for the performance of tasks as it promotes health and minimizes stress and discomfort during work. The Rapid Upper Limb Assessment (RULA) is a widely used tool designed for the investigations of the work posture. In this concern, this research work has been conducted in a leading ceramic industry of Bangladesh in order to study and assess the work postures of workers working in the production section through RULA. The objective of the research work was to analyze the various work postures of the workers of the selected ceramic industry. ...

Keywords

Disorder, Posture, Rapid upper limb assessment, Risk, Stress.

 

 

Title

FLEXURAL CHARACTERISTICS OF OIL PALM STEM REINFORCED CONCRETE BEAMS

Author OBILADE, I.O. and OLUTOGE, F.A.
Source International Journal of Engineering and Applied sciences pp 21 - 25 Vol 05. No. 03, 2014
Abstract

The potentials of Oil Palm Stem as a reinforcement material in concrete beams were investigated. The principal objective was to determine the flexural behaviour of Oil Palm Stem Reinforced Concrete Beams. Tensile strength tests were conducted on Oil Palm Stem Samples to assess their qualities as reinforcement material. Singly Steel Reinforced and Singly Oil Palm Stem Reinforced Concrete Beams of 750mm length having 150mm width and depth were compared with Plain Concrete Beam in this research work. The flexural strength, load carrying capacity and deflection characteristics of each beam were observed and compared. It was discovered that using Oil Palm Stem as reinforcement can increase the load carrying ...

Keywords

Concrete, Beams, Steel, Oil Palm Stem

 

 

Title

MODELLING THE EFFECT OF HEAD AND BUCKET SPLITTER ANGLE ON THE POWER OUTPUT OF A PELTON TURBINE

Author UJAM J. A., CHUKWUNEKE J. L., ACHEBE C. H., IKWU G. O. R.
Source International Journal of Engineering and Applied sciences pp 26 - 36 Vol 05. No. 03, 2014
Abstract

This work investigates the effect of head and bucket splitter angle on the power output of a pelton turbine (water turbine), so as to boost the efficiency of Hydro-electric power generation systems. A simulation program was developed using MatLab to depict the force generated by the bucket as the water jet strikes the existing splitter angle (100 to 150) and predicted (10 to 250) splitter angles. Result shows that in addition to the existing splitter angle, six more angles have been investigated for the two operating conditions to ...

Keywords

Bucket Splitter Angle, Force, Head, Modelling, Pelton Turbine, Power Output, Shaft Output

 

 

 

Volume 5 Issue 02

 

Title

COMPREHENSIVE ANALYSIS OF THE FACTORS THAT AFFECTING INEFFICIENT MANAGEMENT OF VESSELS USING LRM, RSM AND SEM

Author Wan Muhamad Amir W Ahmad, Gobi Krishnan Veluplay, Kasypi Mokhtar, Nurfadhlina Halim and Nor Azlida Aleng
Source International Journal of Engineering and Applied sciences pp 01 - 15 Vol 05. No. 02, 2014
Abstract

There are several factors affecting the safety in maritime industry especially in shipping organization or sailing vessels. These factors have arisen due to lack of proper management system in shipping organization or onboard vessels particularly on smaller. In conjunction with this, ISM Code was introduced to enhance the maritime safety but it is not applicable for vessels <500 GRT. Hence, this has lead the smaller vessels to exposed to safety related problems and dangers. Thus, the accident rate has increasing. Therefore, the purpose of this study is to find out the factors contributing towards inefficient management as a result of lack of proper management system. A sample consists of 324 respondents from varies field in shipping industry was collected using questionnaire forms as an instrument and analyzed using Logistics Regression Modeling (LRM) ....

Keywords

ship management, safety management structure, maritime accidents, .

 

 

Title

ADOPTING THE USE OF CYPRESS AS A WOODY BIOMASS OF CHOICE IN CAMEROON BASED ON AN ANALYTIC DETERMINATION OF THE NET CALORIFIC VALUE (NCV)

Author Afungchui David
Source International Journal of Engineering and Applied sciences pp 16- 24 Vol 05. No. 02, 2014
Abstract

Wood biomass stands out as the most important renewable energy source in Cameroon especially among the rural population. The favourable climatic conditions enhance the sustainability of wood biomass and consequently the potential of further expansion. Cypress is a common coniferous wood species abundantly distributed over the entire national territory of Cameroon. It does not require any special care for its growth and proliferation. In what follows the energy content of cypress would be evaluated to demonstrate the expected energetic efficiency based on a newly developed analytical scheme. . ....

Keywords

Calorific value, cypress wood, Biomass, Relative humidity, Equilibrium moisture content.

 

 

Title

DETERMINATION OF PREDICTIVE MODELS FOR TRAFFIC CONGESTION IN LAGOS METROPOLIS

Author Olusina, J.O. and Samson, A.P.
Source International Journal of Engineering and Applied sciences pp 25 - 35 Vol 05. No. 02, 2014
Abstract

Traffic congestion always have negative effects on lives and environment. To quantify these negative effects is complex and multivaried. For congestion to be mitigated or eliminated, gathering of information on traffic incidents such as state of the road, congestion spots, and volume of traffic on each road cannot be overemphasized. Outright elimination of traffic congestion may not be a realistic goal, but traffic management that is based on available traffic information that will reduce the intensity of congestion may be achievable. ...

Keywords

Traffic Congestion, Geographic Information Systems (GIS), Passenger Car Equivalents (PCE), Generalized Polynomial, Volume of Traffic.

 

 

 

 

Title

MATHEMATICAL ANALYSIS OF INSULIN-GLUCOSE FEEDBACK SYSTEM OF DIABETIES

Author DR. DIMPLEKUMAR CHALISHAJAR, CADET ANDREW C. STANFORD
Source International Journal of Engineering and Applied sciences pp 36 - 58 Vol 05. No. 02, 2014
Abstract

Mathematical models based on advanced differential equations are utilized to analyze the effect of insulin infusions in human body with the intent of determining better modes of treatment for the metabolism of glucose. We have incorporated the models of several prominent mathematicians in this work, with the particular emphasis on deriving the models, formulas and intent of their works. The purpose of which is to come to a greater understanding of the nature of their models in order to express their works in a more simplified and comprehensive way. ...

Keywords

Mathematical Models, Insulin Infusion, three insulin feedback model

 

 

Title

STABILITY OF SOLUTIONS TO THIRD-ORDER NONLINEAR AND NONAUTONOMOUS DIFFERENTIAL EQUATIONS

Author Muzaffer Ateş
Source International Journal of Engineering and Applied sciences pp 59 - 62 Vol 05. No. 02, 2014
Abstract

We studied the stability and boundedness results of a third-order nonlinear and nonautonomous differential equations of the form Generally particular cases of autonomous form and some particular cases of nonautonomous form of this equation have been studied by many authors over the years. ...

Keywords

Stability, Third order non-linear, differential equations, Lyapunov function

 

 

Title

PREDICTION OF PARKING LOT AVAILABILITY USING ELANG’S LOSS MODEL

Author Olusina, J.O. and 2 Desalu, T.
Source International Journal of Engineering and Applied sciences pp 63 - 70 Vol 05. No. 02, 2014
Abstract

Parking is one of the most crucial needs in the developing and developed nations. Urban population growth and business activities in Lagos State have contributed to the frenzied location of facilities. Often facilities are located without adhering to the set standards and regulations. Noncompliance to standards particularly in busy business districts usually contributes to traffic congestions in those areas. Similarly, ...

Keywords

Geographic Information Systems (GIS), of Surveying & Geoinformatics

 

 

 

Title

STUDY OF THE POPULATION OF COLEOPTERA IN IRRIGATED RICE ECOSYSTEMS (MAGA AND YAGOUA) AND IN UPLAND RICE IN MAROUA

Author SADOU Ismaël, WOIN Noé, DJONWANWE, MBONGAYA Samy Eware
Source International Journal of Engineering and Applied sciences pp 71 - 76 Vol 05. No. 02, 2014
Abstract

The coleoptera were studied in 2013 in the major irrigated rice ecosystems of Maga and Yagoua and in upland rice fields of Maroua in the Far-North region of Cameroon. Sampling of the coleoptera was carried out every forth night in upland rice fields and irrigated rice fields using a special sweep net and a aspirator D-VAC. From the samples collected in the various sites, the population of dominant coleoptera, were analysed in relation to the phenological stage of the rice plant. ...

Keywords

Insect, Coleoptera, Rice, Far North, Cameroon.

 

 

 

 

Volume 5 Issue 01

 

Title

DEVELOPMENT AND ASSESSMENT OF NONLINEAR PREDICTORS FOR CONTINUATION METHOD

Author A. BONINI NETO, E. M. MAGALHÃES, D. A. ALVES
Source International Journal of Engineering and Applied sciences pp 01 - 09 Vol 05. No. 01, 2014
Abstract

The steps involved in the development of two nonlinear predictors for tracing the solution paths of power flow equations are presented in a clear and didactic way. Their performances are compared to those obtained by using the modified zero-order polynomial and the first-order polynomial predictors. Nonlinear predictors are based on the Lagrange interpolating polynomial of second degree, which allows reconstructing a function passing through three given points in the plane determined by the variables loading factor and voltage magnitudes, or voltage angles variables. ....

Keywords

Nonlinear predictor; Continuation power flow; Parameterization technique; Lagrange interpolating polynomial..

 

 

Title

EVALUATION OF IRRIGATION WATER QUALITY IN DIFFERENT REGIONS OF NORTH EAST DELTA-EGYPT

Author ASSUONY M.A., ALI M.E., ABDEL HAMEED A.H. & JAHIN H.S
Source International Journal of Engineering and Applied sciences pp 10- 16 Vol 05. No. 01, 2014
Abstract

Water quality has great significance in arid and semi-arid regions and it is based on the salinity, sodicity and permeability. In this study water samples were collected representing different sources for irrigation in the peak dry season from various regions of north east Delta, Egypt. . ....

Keywords

Water quality; Salinity; Sodicity; Permeability; North East Delta

 

 

Title

SOME CHARACTERIZATIONS FOR THE EXISTINCE OF BERTRAND CURVES IN DUAL SPACE D^4

Author Emel Karaca, Mustafa Çalışkan, Sevinç Aydın
Source International Journal of Engineering and Applied sciences pp 17 - 19 Vol 05. No. 01 , 2014
Abstract

In differential geometry, the characterizations of curves and corresponding relations between the curves are an important problem. Bertrand curves can be given as example of that relation. A Bertrand curve in 〖IR〗^3 is a curve such that its principal normal vectors are the principal normal vectors of an other curve. Aminov proved that a Bertrand curve does not exist in 〖IR〗^n if n ≥ 4. Kim ...

Keywords

Dual Frenet frames, Bertrand curves, Dual space.

 

 

Title

Land use change detection in the north central region using remote sensing data

Author Miae Ha, Jinseok Hong
Source International Journal of Engineering and Applied sciences pp 20-29 Vol 05. No. 01, 2014
Abstract

The renewable energy is a big issue in North Central area. The land use and crop land maps are important to produce bio- crude oil. The main objectives are to provide land use map in La Salle County, IL for hydrologic modeling and analyzing cropland patterns which are the previous step of preparing cropland map for calculating cropland data from National Agricultural Statistics Service (NASS). The maximum likelihood method of supervised classification has the best accuracy and kappa coefficient, 93 % and 0.89, respectively and the land use map was created using this method. ...

Keywords

renewable energy, Land use, Remote Sen