ORIGINAL_ARTICLE
COMBINED HEAT AND MASS TRANSFER IN MHD FREE CONVECTION FROM A WEDGE WITH OHMIC HEATING AND VISCOUS DISSIPATION IN THE PRESENCE OF SUCTION OR INJECTION
The problem of combined heat and mass transfer of an electrically conducting fluid in MHDnatural convection adjacent to a vertical surface is analyzed, taking into account the effects of Ohmic heatingin the presence of suction or injection. An approximate numerical solution for the steady laminar boundarylayerflow over a wall of the wedge in the presence of species concentration and mass diffusion has beenobtained by solving the governing equations using the numerical technique. The fluid is assumed to beviscous and incompressible. Numerical calculations are carried out for different values of dimensionlessparameters and an analysis of the results obtained shows that the flow field is influenced appreciably by themagnetic effect, the buoyancy ratio between species and thermal diffusion and suction/injection at the wallsurface. Effects of these major parameters on transport behaviors are investigated methodically and typicalresults are illustrated to reveal the tendency of the solutions. Representative results are presented for thevelocity, temperature, and concentration distributions, as well as the local skin-friction coefficient and skinfriction.
http://ijsts.shirazu.ac.ir/article_2324_f85ca468fa7afed222d5fef73f4909a2.pdf
2007-08-11T11:23:20
2019-02-23T11:23:20
151
162
10.22099/ijsts.2007.2324
Buoyancy ratio
Ohmic heating
Boussinesq fluid
MHD boundary layer flow and suction/injection at
the wall of the wedge
R.
KANDASAMY
kandan_kkk@yahoo.co
true
1
Centre for Science Studies, University of Tun Hussein Onn, Malaysia,
86400 Parit Raja, Batu Pahat Johor, Malaysia
Centre for Science Studies, University of Tun Hussein Onn, Malaysia,
86400 Parit Raja, Batu Pahat Johor, Malaysia
Centre for Science Studies, University of Tun Hussein Onn, Malaysia,
86400 Parit Raja, Batu Pahat Johor, Malaysia
LEAD_AUTHOR
I.
HASHIM
true
2
School of Mathematical Sciences, University of Kebangsaan, Malaysia,
43600 UKM Bangi Selangor, Malaysia
School of Mathematical Sciences, University of Kebangsaan, Malaysia,
43600 UKM Bangi Selangor, Malaysia
School of Mathematical Sciences, University of Kebangsaan, Malaysia,
43600 UKM Bangi Selangor, Malaysia
AUTHOR
A. B.
KHAMIS
true
3
Centre for Science Studies, University of Tun Hussein Onn, Malaysia,
86400 Parit Raja, Batu Pahat Johor, Malaysia
Centre for Science Studies, University of Tun Hussein Onn, Malaysia,
86400 Parit Raja, Batu Pahat Johor, Malaysia
Centre for Science Studies, University of Tun Hussein Onn, Malaysia,
86400 Parit Raja, Batu Pahat Johor, Malaysia
AUTHOR
I.
MUHAIMIN
true
4
Centre for Science Studies, University of Tun Hussein Onn, Malaysia,
86400 Parit Raja, Batu Pahat Johor, Malaysia
Centre for Science Studies, University of Tun Hussein Onn, Malaysia,
86400 Parit Raja, Batu Pahat Johor, Malaysia
Centre for Science Studies, University of Tun Hussein Onn, Malaysia,
86400 Parit Raja, Batu Pahat Johor, Malaysia
AUTHOR
ORIGINAL_ARTICLE
ON PROBLEMS REDUCING TO THE GOURSAT PROBLEM FOR A FOURTH ORDER EQUATION
In this paper, we investigate some problems which can be reduced to the Goursat problem for afourth order equation. Some results and theorems are given concerning the existence and uniqence for thesolution of the suggested problem.
http://ijsts.shirazu.ac.ir/article_2325_67776a597b75725198c49b9e4d70f7d9.pdf
2007-08-11T11:23:20
2019-02-23T11:23:20
163
170
10.22099/ijsts.2007.2325
Fourth order of partial differential equations
goursat problem
A.
MAHER
a_maher69@yahoo.com
true
1
Department of Mathematics, Faculty of Science, Assiut University, 71516, Egypt
Department of Mathematics, Faculty of Science, Assiut University, 71516, Egypt
Department of Mathematics, Faculty of Science, Assiut University, 71516, Egypt
LEAD_AUTHOR
YE. A.
UTKINA
true
2
Department of Differential Equations, Kazan State University,
18 Kremlyovskaya St., Kazan, 420008, Russia
Department of Differential Equations, Kazan State University,
18 Kremlyovskaya St., Kazan, 420008, Russia
Department of Differential Equations, Kazan State University,
18 Kremlyovskaya St., Kazan, 420008, Russia
AUTHOR
ORIGINAL_ARTICLE
HIGH SPIN STATES IN 191OS
High spin states in the neutron rich nucleus 191Os has been populated for the first time using the82Se+192Os deep-inelastic reaction at 460 MeV beam energy using the ALPI accelerators at the LaboratoryNazionali di Legnaro, Italy. High fold γ-γ coincidences were acquired with the 4π spectrometer GASPdetector array, consisting of 40 Compton-suppressed, large-volume germanium detectors with an inner ballconsisting of 80 BGO crystals acting as a multiplicity filter and a total-energy spectrometer. The newdiscovered level scheme is extended up to spin 19/2+. The observed structure is interpreted as fragments of arotational band built on single neutron configuration {11/2+ [615]} according to a Nilsson deformed shellmodel.
http://ijsts.shirazu.ac.ir/article_2326_9f20d131682480774cd48e1443251f9f.pdf
2007-08-11T11:23:20
2019-02-23T11:23:20
171
175
10.22099/ijsts.2007.2326
Deep-inelastic Reaction
Rotational Band
High Spin States
Deformed Shell Model
Gamma-gamma
Coincidences
S.
MOHAMMADI
mohammadi@pnu.ac.ir
true
1
Physics Department, Payam Noor University, Mashhad 91735, I. R. of Iran
Physics Department, Payam Noor University, Mashhad 91735, I. R. of Iran
Physics Department, Payam Noor University, Mashhad 91735, I. R. of Iran
LEAD_AUTHOR
ZS.
PODOLYAK
true
2
Department of Physics, University of Surrey, Guildford, GU2 7XH, UK
Department of Physics, University of Surrey, Guildford, GU2 7XH, UK
Department of Physics, University of Surrey, Guildford, GU2 7XH, UK
AUTHOR
ORIGINAL_ARTICLE
ON THE HELICES IN THE GALILEAN SPACE G3
T. Ikawa obtained an ordinary differential equation for the circular helix. Recently, the helix havebeen investigated by many differential geometers such as T. Ikawa, H. Balgetir, M. Bektas, M. Ergut, N.Ekmekci and H. H. Hacısalihoglu. In this paper, making use of this author’s methods, we obtainedcharacterizations of helix for a curve with respect to the Frenet frame in 3-dimensional Galilean space G3.
http://ijsts.shirazu.ac.ir/article_2327_b01dbc7305fb6076018322b51bdadd31.pdf
2007-08-11T11:23:20
2019-02-23T11:23:20
177
181
10.22099/ijsts.2007.2327
Galilean Space
Helix
A. O.
OGRENMIS
aogrenmis@firat.edu.tr
true
1
Department of Mathematics, Firat University, 23119, Elazig, Turkey
Department of Mathematics, Firat University, 23119, Elazig, Turkey
Department of Mathematics, Firat University, 23119, Elazig, Turkey
LEAD_AUTHOR
E.
ERGUT
true
2
Department of Mathematics, Firat University, 23119, Elazig, Turkey
Department of Mathematics, Firat University, 23119, Elazig, Turkey
Department of Mathematics, Firat University, 23119, Elazig, Turkey
AUTHOR
M.
BEKTAS
true
3
Department of Mathematics, Firat University, 23119, Elazig, Turkey
Department of Mathematics, Firat University, 23119, Elazig, Turkey
Department of Mathematics, Firat University, 23119, Elazig, Turkey
AUTHOR
ORIGINAL_ARTICLE
DOUBLE SEQUENCE SPACES DEFINED BY ORLICZ FUNCTIONS
In this paper we introduce some new double sequence spaces using the Orlicz function andexamine some properties of the resulting sequence spaces.
http://ijsts.shirazu.ac.ir/article_2328_6f2c9f3812a99498fab81db1a379565b.pdf
2007-08-11T11:23:20
2019-02-23T11:23:20
183
188
10.22099/ijsts.2007.2328
Double sequences
P-convergent
Orlicz functions
E.
SAVAS
ekremsavas@yahoo.com & esavas@iticu.edu.tr
true
1
Istanbul Ticaret University, Department of Mathematics, Uskudar, Istanbul, Turkey
Istanbul Ticaret University, Department of Mathematics, Uskudar, Istanbul, Turkey
Istanbul Ticaret University, Department of Mathematics, Uskudar, Istanbul, Turkey
AUTHOR
R. F.
PATTERSON
rpatters@unf.edu
true
2
University of North Florida, Building 11 Jacksonville, Florida 32224, USA
University of North Florida, Building 11 Jacksonville, Florida 32224, USA
University of North Florida, Building 11 Jacksonville, Florida 32224, USA
LEAD_AUTHOR
ORIGINAL_ARTICLE
SEQUENTIAL ESTIMATION IN A SUBCLASS OF EXPONENTIAL FAMILY UNDER WEIGHTED SQUARED ERROR LOSS
In a subclass of the scale-parameter exponential family, we consider the sequential pointestimation of a function of the scale parameter under the loss function given as the sum of the weightedsquared error loss and a linear cost. For a fully sequential sampling scheme, second order expansions areobtained for the expected sample size as well as for the regret of the procedure. The former researches onGamma and Exponential distributions can be deduced from our general results.
http://ijsts.shirazu.ac.ir/article_2329_ef4dc04839d1c9f19b144aa44df81031.pdf
2007-08-11T11:23:20
2019-02-23T11:23:20
189
197
10.22099/ijsts.2007.2329
Sequential estimation
stopping rule
regret analysis
exponential family
transformed chi-square
distribution
N.
NEMATOLLAHI
nematollahi@atu.ac.ir
true
1
Department of Statistics, Faculty of Economics, Allameh Tabataba'i University, Tehran, I. R. of Iran
Department of Statistics, Faculty of Economics, Allameh Tabataba'i University, Tehran, I. R. of Iran
Department of Statistics, Faculty of Economics, Allameh Tabataba'i University, Tehran, I. R. of Iran
LEAD_AUTHOR
M.
JAFARI JOZANI
true
2
Department of Statistics, Faculty of Economics, Allameh Tabataba'i University, Tehran, I. R. of Iran
Department of Statistics, Faculty of Economics, Allameh Tabataba'i University, Tehran, I. R. of Iran
Department of Statistics, Faculty of Economics, Allameh Tabataba'i University, Tehran, I. R. of Iran
AUTHOR
N.
MAHLOOJI
true
3
Department of Statistics, Faculty of Economics, Allameh Tabataba'i University, Tehran, I. R. of Iran
Department of Statistics, Faculty of Economics, Allameh Tabataba'i University, Tehran, I. R. of Iran
Department of Statistics, Faculty of Economics, Allameh Tabataba'i University, Tehran, I. R. of Iran
AUTHOR
ORIGINAL_ARTICLE
MINIMIZING LOSS PROBABILITY IN QUEUING SYSTEMS WITH HETEROGENEOUS SERVERS
The probability of losing a customer in M/G/n/0 and GI/M/n/0 loss queuing systems withheterogeneous servers is minimized. The first system uses a queue discipline in which a customer who arriveswhen there are free servers chooses any one of them with equal probability, but is lost otherwise. Providedthat the sum of the servers rates are fixed, loss probability in this system attains minimum value when all theservice rates are equal. The second system uses queue discipline, in which a customer who enters into thesystem is assigned to the server with the lowest number. Loss probability in this system takes the minimumvalue in the case when the fastest server rule is used in which an incoming customer is served by the freeserver with the shortest mean service time. If the mean of the arrival distribution is fixed, then loss probabilityis minimized by deterministic arrival distribution
http://ijsts.shirazu.ac.ir/article_2330_6901ed3bf3527b64512d59331e0f5239.pdf
2007-08-11T11:23:20
2019-02-23T11:23:20
199
206
10.22099/ijsts.2007.2330
Service rate
Erlang’s loss formula
heterogeneous servers
loss probability
recurrent input
exponential
server
overflow distribution
V.
SAGLAM
vsaglam@omu.edu.tr
true
1
Department of Statistic, Faculty of Arts and Sciences, Ondokuz
Mayis University, Kurupelit, 55139-Samsun, Turkey,
Department of Statistic, Faculty of Arts and Sciences, Ondokuz
Mayis University, Kurupelit, 55139-Samsun, Turkey,
Department of Statistic, Faculty of Arts and Sciences, Ondokuz
Mayis University, Kurupelit, 55139-Samsun, Turkey,
LEAD_AUTHOR
A.
SHAHBAZOV
true
2
Department of Statistic, Faculty of Arts and Sciences, Ondokuz
Mayis University, Kurupelit, 55139-Samsun, Turkey
Department of Statistic, Faculty of Arts and Sciences, Ondokuz
Mayis University, Kurupelit, 55139-Samsun, Turkey
Department of Statistic, Faculty of Arts and Sciences, Ondokuz
Mayis University, Kurupelit, 55139-Samsun, Turkey
AUTHOR
ORIGINAL_ARTICLE
STEINER FORMULA AND HOLDITCH-TYPE THEOREMS FOR HOMOTHETIC LORENTZIAN MOTIONS
The present paper is concerned with the generalization of the Holditch Theorem under oneparameterhomothetic motion on Lorentzian planes. In this paper, for the homothetic Lorentzian motion, weexpressed the Steiner formula. Furthermore, we present the Holditch-Type Theorems.
http://ijsts.shirazu.ac.ir/article_2331_e2decd10f598924fc8320c13325124c7.pdf
2007-08-11T11:23:20
2019-02-23T11:23:20
207
212
10.22099/ijsts.2007.2331
Holditch Theorem
Steiner formula
lorentzian plane
homothetic motion
S.
YUCE
sayuce@yildiz.edu.tr
true
1
Yıldız Technical University, Faculty of Arts and Science, Department of Mathematics, Esenler, 34210,
Istanbul, Turkey,
Yıldız Technical University, Faculty of Arts and Science, Department of Mathematics, Esenler, 34210,
Istanbul, Turkey,
Yıldız Technical University, Faculty of Arts and Science, Department of Mathematics, Esenler, 34210,
Istanbul, Turkey,
LEAD_AUTHOR
N.
KURUOGLU
true
2
University of Bahcesehir, Faculty of Arts and Science, Department of
Mathematics and Computer Sciences, Besiktas 34100, Istanbul, Turkey
University of Bahcesehir, Faculty of Arts and Science, Department of
Mathematics and Computer Sciences, Besiktas 34100, Istanbul, Turkey
University of Bahcesehir, Faculty of Arts and Science, Department of
Mathematics and Computer Sciences, Besiktas 34100, Istanbul, Turkey
AUTHOR
ORIGINAL_ARTICLE
A BOUNDARY INTEGRAL MODEL FOR SIMULATING SPILLING BREAKERS
A boundary integral method is used to simulate spilling breakers. The bottom is also included inthe introduced closed boundary and the problem is directly solved in the physical plane. The method has beenshown to be remarkably stable, and no numerical instability has occurred in any of the calculations. Theresults reveal that both the momentum and total energy are almost constant in time during the simulationperiod. As a result, the breaking process of a spilling breaker is fairly well simulated.
http://ijsts.shirazu.ac.ir/article_2332_e1952cb184e26c8f0bdeb548cb62fafb.pdf
2007-08-11T11:23:20
2019-02-23T11:23:20
213
217
10.22099/ijsts.2007.2332
Breaking waves
Numerical simulation
spilling
Cauchy’s integral theorem
S. A.
AZARMSA
azarmsaa@modares.ac.ir,
true
1
Faculty of Marine Sciences, Tarbiat Modares University, Tehran, I. R. of Iran
Faculty of Marine Sciences, Tarbiat Modares University, Tehran, I. R. of Iran
Faculty of Marine Sciences, Tarbiat Modares University, Tehran, I. R. of Iran
LEAD_AUTHOR