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International Journal of Research and Reviews in Applied Sciences
ISSN: 2076-734X, EISSN: 2076-7366
Volume 17, Issue 1(November, 2013)
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1. |
DATA MINING IN RADIATION PORTAL MONITORING |
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by Tom Burr, Michael S. Hamada, Kary Myers, Nicholas Hengartner & Richard Picard |
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Abstract |
Currently deployed passive gamma and neutron detectors
screen for illicit nuclear material. Archived data can help evaluate special nuclear
material detection probabilities and investigate several related issues, including
(1) nuisance gamma alarms arising from naturally occurring radiation, (2) the impact
of drifting neutron and gamma background rates, and (3) radioisotope identification
performance. This paper illustrates roles for data mining to investigate issue (1)
and briefly reviews data mining to investigate issues (2) and (3).
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International Journal of Research and Reviews in Applied Sciences
November 2013 -- Vol. 17 Issue 1 -- 2013 |
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2. |
EXPERIMENTAL AND NUMERICAL ANALYSIS OF VICKERS HARDNESS TESTING |
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by Evando E. Medeiros & Avelino M.S. Dias
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Abstract |
Indentation Tests
have been largely used for determination of superficial hardness. Due to its great
applicability, new methodologies are being developed in order to determine mechanical
properties such as Young Modulus
(E) and fracture toughness (KIC)
for brittle materials. However, the Vickers indentation has several limitations
and complications as methodology for characterization of these material properties. Thus, the use of a numerical technique able to determine fields of stress and strain
during the indentation cycle may give a more reliable interpretation of this kind
of test. Hence, this work aims to study the mechanical behaviour of a specimen of
tungsten carbide cobalt (WC-Co) during a Vickers indentation test, based on FE calculations
with the commercial solver MSC Marc. In a future development of this work, it will
be developed numerical models to simulate the mechanisms of crack onset and their
propagation during the tests.
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International Journal of Research and Reviews in Applied Sciences
November 2013 -- Vol. 17 Issue 1 -- 2013 |
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3. |
CALCULATION OF POWER TRANSFORMERS EQUIVALENT CIRCUIT PARAMETERS USING NUMERICAL FIELD SOLUTIONS |
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by Antônio Flavio Licarião Nogueira |
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Abstract |
Numerical field solutions may be used to determine the electrical equivalent circuit parameters
of transformers. The lumped elements of the equivalent circuit correspond to the
various physical phenomena in the transformer. The study introduces the sequence
of operations necessary to evaluate the parameters of the conventional
T-shaped transformer equivalent circuit by means of the numerically simulated
open- and short-circuit tests.
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International Journal of Research and Reviews in Applied Sciences
November 2013 -- Vol. 17 Issue 1 -- 2013 |
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4. |
THE STABILITY OF THE PIPELINE LAID ON A PORO-ELASTIC SEABED |
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by Ren Yanrong |
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Abstract |
The dynamic response of
buried submarine pipeline subjected to wave must be take into account in the design.
In this paper the two-dimensional finite element model has been established, the
poro-elastic model has been adopted, the deformation and force condition of pipeline
have been calculated under the load gravity and the combined load of
weight and
harmonic wave force respectively. The key issue is to simulate the interaction among
flow, pipe and soil. The factors such as seabed thickness, water depth, pipe’s diameter,
elastic modulus, wave period and permeability coeffient have been considered. The
numerical results show that pipe’s weights, horizontal load, pipe’s diameter, water
depth, elastic modulus have an important effect, but seabed thickness, wave period
have little effect. The research results can provide scientific gist for the pipeline’s
design.
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International Journal of Research and Reviews in Applied Sciences
November 2013 -- Vol. 17 Issue 1 -- 2013 |
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5. |
SLIDING MODE CONTROL FOR A CLASS OF QUASI-LINEAR PARABOLIC PARTIAL DIFFERENTIAL EQUATION SYSTEMS WITH TIME-WARYING DELAY |
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by Hailong Xing |
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Abstract |
The sliding mode control (SMC) problem for
a class of quasi-linear parabolic partial differential equation (PDE) systems with
time-varying delay is considered. Firstly, the stability problem for the reduced
order sliding dynamical equations is investigated and a sufficient condition for
the stability of sliding motion is given. Then the SMC law, which forces the system
state from any initial state to reach the sliding manifold within finite time, is
designed. At last a simulation example is presented to illustrate effectiveness
of the proposed method.
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Source: |
International Journal of Research and Reviews in Applied Sciences
November 2013 -- Vol. 17 Issue 1 -- 2013 |
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6. |
DARBOUX TRANSFORMATION AND EXPLICIT SOLUTIONS FOR TWO NEW DIFFERENTIAL-INTEGRAL EQUATIONS |
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by Guoliang He & Ting Su |
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Abstract |
A Darboux transformation for two new
differential-integral equations in the Manakov hierarchy is given by using the gauge
transformation between the corresponding matrix spectral problems. As an application
of the Darboux transformation, soliton solutions of the two equations are obtained.
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Source: |
International Journal of Research and Reviews in Applied Sciences
November 2013 -- Vol. 17 Issue 1 -- 2013 |
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7. |
BLOW-UP FOR SOLUTIONS TO A KIND OF QUASI-LINEAR SYSTEMS |
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by Shikuan Mao & Yongqin Liu |
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Abstract |
The focus of this paper
is on the geometric
mechanism for blow-up of solutions to Cauchy problem for a kind
of quasi-linear systems. We demonstrate that blow-up is closely related to the eigenvalues
of matrix by using Cramer criterion and characteristics method.
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Source: |
International Journal of Research and Reviews in Applied Sciences
November 2013 -- Vol. 17 Issue 1 -- 2013 |
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8. |
ESTIMATES FOR EIGENVALUES OF THE SCHRÖDINGER OPERATOR ON DOMAINS IN COMPLETE NONCOMPACT RIEMANNIAN MANIFOLDS |
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by Li Yanli & Du Feng |
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Abstract |
In this paper, we consider the eigenvalue problem of the
Schrödinger operator, and obtain
some universal inequalities for eigenvalues of the
Schrödinger operator in complete simple connected noncompact Riemmannian
manifolds admitting special functions which include hyperbolic space.
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Source: |
International Journal of Research and Reviews in Applied Sciences
November 2013 -- Vol. 17 Issue 1 -- 2013 |
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9. |
CATEGORIZATION OF COUNTRIES COMPETITIVENESS FOR GOLD MINING INVESTMENTS WORLDWIDE |
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by Karim Rajabu Baruti & Antipas Safari Massawe |
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Abstract |
There is no other study which established the cash-cost and country-benefit based
categories of countries competitiveness for gold mining investments worldwide.
These categories help in the justification of investment targets and country regimes for
gold mining in the variable mine characteristics and country regimes of gold mining
globally. This study developed four such categories (I, II, III and IV) using mathematical
models of cash-cost and country-benefit fit on the variable mine characteristics
and country regimes of gold mining worldwide. Development
involved the assessment
of cash-costs and country-benefits of the mine characteristics of Tanzanian gold
mines fit on the country regimes of gold mining in the 18 topmost gold producing
countries in the world in 2008. Comparison of the country regimes characterizing
each of the four developed categories enabled to establish the country regimes of
gold mining enabling delivery of the desired cash-cost and country-benefit based
categories of countries competitiveness in the selection of investment targets and
justification of country regimes for gold mining globally.
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Source: |
International Journal of Research and Reviews in Applied Sciences
November 2013 -- Vol. 17 Issue 1 -- 2013 |
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10. |
INVESTIGATING THE HYDRODYNAMIC BEHAVIOR OF INNOVATIVE ARCHIMEDEAN HYDROPOWER TURBINES |
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by Alkistis Stergiopoulou & Efrosini Kalkani |
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Abstract |
The
present
paper
presents
the preliminary investigation
of
the
hydrodynamic behavior
of
Archimedean
hydropower
turbines,
with
inclined
and
horizontal
axis,
for
the
exploitation
of
the
low-head
hydraulic energy
and
the
kinetic
energy
of
natural
and
artificial
watercourses, including
coastal and
tidal currents.
By
using
the
similarity
theory,
some
experimental
cochlear
rotors
have
been
developed
and
some
approaches
have
been
made
for
a
series
of
cochlear
small
hydropower
plants
covering
small
heads,
including
conditions
with
zero
heads for the particular cases of
the
coastal
and
tidal
currents
of
Cephalonia
and
Euripus Strait
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Source: |
International Journal of Research and Reviews in Applied Sciences
November 2013 -- Vol. 17 Issue 1 -- 2013 |
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11. |
OPTIMIZED GSCs IN FUNCTION POINT ANALYSIS – A MODIFIED APPROACH
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by Jagrit S Srivastava & Gurmit Singh |
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Abstract |
In function point analysis for software cost estimation, fourteen “General Systems Characteristics” (GSCs) are used to calculate a “Value Adjustment Factor” (VAF), with which unadjusted functions point count is adjusted. Although the GSCs and VAF have been criticized on both theoretical and practical grounds, they are used by many function point specialists. This paper extends earlier rationalisation done by C.J. Lokan [1] on GSCs and proposed modified GSCs and formula to calculate Value Adjustment Factor VAF. We conclude that recording non functional requirement by using four new GSCs factor and using modified VAF formula ensure increase in function point count to extent of 20% which in turn will improve productivity. Further empirical research would also be valuable. In particular, it would be worthwhile to repeat the factor analysis on different data sets, to obtain a better understanding of the underlying factors.
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Source: |
International Journal of Research and Reviews in Applied Sciences
November 2013 -- Vol. 17 Issue 1 -- 2013 |
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12. |
DEVELOPING SMALL HYDROPOWER POTENTIALS FOR RURAL ELECTRIFICATION |
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by Adejumobi I.A., Adebisi O.I. & Oyejide S.A. |
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Abstract |
Electrical energy
is an integral component of the overall development of any nation. About sixty –
five percent (65%) of the Nigerian rural populace do not have access to electricity.
This work therefore presents the surveyed and analyzed potential hydropower sites
for rural electrification scheme in Nigeria using the available hydrological data. The fundamental energy equations that determine the theoretical power output, turbine
and generator capacities for small hydropower schemes were presented, considering
the hydrological head (H) in metres (m), discharge (Q) in cubic metres per second (m3/s) as collected from selected streams, rivers and dams at different
parts of the country. The average energy consumption patterns for rural communities
in the selected sites were also presented. The results from the analysis showed
that theoretical electrical power ranging from 5.13 kW to 5,000 kW which is enough
to cater for average rural community loads is realizable in Nigeria if the identified
small hydropower sites are developed.
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Source: |
International Journal of Research and Reviews in Applied Sciences
November 2013 -- Vol. 17 Issue 1 -- 2013 |
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13. |
THE IMPACT OF FDI ON ENVIRONMENTAL RESOURCES IN SELECTED COUNTRIES (NON- OECD) |
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by Mohammad Sadegh Avazalipour, Fatemeh Zandi, Reza Saberi, Nader Hakimipour & Marjan Damankeshideh |
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Abstract |
Recently, concerns
on the role of Foreign Direct Investment (FDI) in environmental pollution besides
other factors and resources of investment have been greatly considered by lots investigators.
Existence of foreign direct investment or multi-national enterprises may show positive
marginal spillover effects on technologic characteristics of national enterprises.
The national enterprises may tend to enjoy from technologic activities of multi-national
enterprises or their technical knowledge for coping environmental problems as well.
As long as products of these technologies replace with product of traditional resources,
it can be expected that residual loading will also reduce. Therefore, foreign direct
investment will probably leave important positive effects on decrease of residual
loading and environmental pollution.
The main purpose of this research is to find the relationship between FDI and the
quality of environments. To do so, firstly some countries are selected from Non-OECD
countries, then by using panel data method for period 1996-2007 the relationship
between FDI and chemical pollution of water was investigated. The results show that
increasing inflow of FDI in Non-OECD countries, increasing FDI causes
the amount of water pollution. In other words, Foreign Direct Investment causes environmental
disturbances in Non-OECD countries. (selected countries).
This study shows that among these countries the ratio of water chemical pollution
to gross domestic income (WCP/GNI) in Latvia is 0.0015 which is smaller than other
countries.
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Source: |
International Journal of Research and Reviews in Applied Sciences
November 2013 -- Vol. 17 Issue 1 -- 2013 |
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14. |
CALCULATION OF MOMENTUM DISTRIBUTIONS OF 7Be FRAGMENT FROM 8B + 12C REACTION USING THE GLAUBER THEORY |
| by Idris D. Adamu |
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Abstract |
The momentum distributions
of 7Be core fragment from 8B + 12C reaction system
are computed in the framework of the Glauber Theory using the CSC_GM code. The contribution
of each component of the angular momentum (for ml
= 0, ±1) for the p-orbital to the longitudinal angular momentum distribution is
also shown. The CSC_GM code used in the computations originated from the CPC Program
Library, Queen’s University of Belfast, N. Ireland. The CSC_GM code is a Fortran
90 program that was originally run on UNIX operating system. The code was modified
and run on Windows xp. The projectile nucleus is assumed to have the structure of a core plus valence nucleon. The input data needed for the calculations are the
core and target densities and the nucleon-nucleon profile function. Results are
found to agree with the experimental data, especially at high incident energies.
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Source: |
International Journal of Research and Reviews in Applied Sciences
November 2013 -- Vol. 17 Issue 1 -- 2013 |
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15. |
EFFECT OF TARGET TO SUBSTRATE DISTANCE ON THE PROPERTIES OF RF MAGNETRON SPUTTERED ZnO THIN FILMS |
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by Roger Ondo Ndong, Hugues Martial Omanda,Patrice Soulounganga, Alain Giani, Brice Sorli & Alain Foucaran |
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Abstract |
We have grown ZnO thin films on silicon substrate by r.f magnetron sputtering using
metallic zinc target and investigated the target to substrate distance dependence
of their stress and structural properties using X-ray diffraction (XRD). We have
confirmed that high-quality ZnO films can be grown in the target to substrate distance
(d) range from distance 3 to 9 cm. As the target to substrate distance (d) varied,
the microstructure of ZnO films was also varied by the stress with a litle change in crystal orientation. It was found that the compressive stress of ZnO films originated
from
the small thermalisation of the films.
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Source: |
International Journal of Research and Reviews in Applied Sciences
November 2013 -- Vol. 17 Issue 1 -- 2013 |
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16. |
CO-INTEGRATION AND ECONOMETRIC MODEL |
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by Nader Hakimipour, Mohammad Sadegh Avazalipour, Sharareh Rakhshan & Morteza Mahmoodi |
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Abstract |
Most of the time the
time series of macroeconomic variables are related to Non-Stationary. Non-Stationary
variable causes several problems in estimating relationships between economic variables
and using regression technique. One of these problems is the consensus on macroeconomic
theory that should exist a stable long-run relationship between the levels of certain economic variables. In this regard, in case of failure to use proper econometric
methods to investigate and estimate the relationship between the variables, it is
possible that the irrelevant variables which have only similar time trend are identified
to have meaningful relationship, or it is possible that the variables are relevant
and the economic theory supports this relationship. However, existence of the time
trend results in incorrect assessment of the intensity of the relationship or its
direction. In terms
of econometrics, both these two relationships are called spurious
regression. Certain Co-integration discussions have been to remove this problem,
whose basis is the discussion of stationary or non- stationary of time series. In
this article, a general and brief view is focused on the set of discussions relevant
to the convergence and it has been tried that the aforementioned discussion is more
expressed for the scholars in this field in a clear and applicable manner. In this
regard, first of all the concept of uniform co-integration in the short term and
long term relationships is focused and after that the co-integration vectors and
their general features are specified. Eventually, by introducing the Error Correction
Model (ECM) and Johansson Test which assesses the long term an stable relationship
among the variables by which the discussion on co-integration are completed.
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International Journal of Research and Reviews in Applied Sciences
November 2013 -- Vol. 17 Issue 1 -- 2013 |
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ERRATUM: |
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COMMON FIXED POINT THEOREM FOR SUB COMPATIBLE AND SUB SEQUENTIALLY CONTINUOUS MAPS IN FUZZY METRIC SPACE USING IMPLICT RELATION |
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by Saurabh Manro |
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