2009
33
2
2
0
INEQUALITIES FOR MEROMORPHICALLY PVALENT FUNCTIONS
2
2
The aim of this paper is to prove some inequalities for pvalent meromorphic functions in thepunctured unit disk Δ* and find important corollaries.
1

139
143


A.
EBADIAN
Department of Mathematics, Faculty of Science, Urmia University, Urmia, I. R. of Iran
Department of Mathematics, Faculty of Science,
Iran
a.ebadian@urmia.ac.ir


SH.
NAJAFZADEH
Department of Mathematics, University of Maragheh, Maragheh, I. R. of Iran
Department of Mathematics, University of
Iran
pvalent functions
meromorphic starlike function
convex
closetoconvex
NARY POLYGROUPS
2
2
Polygroups are multivalued systems that satisfy group like axioms. In this paper the class of narypolygroups is introduced. The concepts of nary normal subpolygroups and strong homomorphisms of narypolygroups are adopted. With respect to these concepts the isomorphism theorems for nary polygroups arestated and proved. Finally, we will consider the fundamental relation * defined on an nary polygroup andprove some results in this respect.
1

145
158


M.
GHADIRI
Department of Mathematics, Yazd University, Yazd, I. R. of Iran
Department of Mathematics, Yazd University,
Iran
mghadiri@yazduni.ac.ir


B. N.
WAPHARE
Department of Mathematics, University of Pune, Pune, India
Department of Mathematics, University of
India
nary polygroup
nary normal subploygroup
isomorphism theorem
fundamental relation
1TYPE AND BIHARMONIC FRENET CURVES IN LORENTZIAN 3SPACE
2
2
1type and biharmonic curves by using Laplace operator in Lorentzian 3space arestudied and some theorems and characterizations are given for these curves.
1

159
168


H.
KOCAYIGIT
Celal Bayar University, Faculty of Science and Arts Department of Mathematics
Muradiye Campus, Muradiye, Manisa, Turkey
Celal Bayar University, Faculty of Science
Turkey
huseyin.kocayigit@bayar.edu.tr


H. H.
HACISALIHOGLU
Ankara University, Faculty of Science, Department of Mathematics, Tandogan, Ankara, Turkey
Ankara University, Faculty of Science, Department
Turkey
– 1type curve
biharmonic curve
Helix
degenerate helices
ALMOST CONVERGENCE THROUGH THE GENERALIZED DE LA VALLÉEPOUSSIN MEAN
2
2
Lorentz characterized the almost convergence through the concept of uniform convergence of de laValléePoussin mean. In this paper, we generalize the notion of almost convergence by using the concept ofinvariant mean and the generalized de la ValléePoussin mean. We determine the bounded linear operators forthe generalized σconservative, σregular and σcoercive matrices.
1

169
177


M.
MURSALEEN
Department of Mathematics, Aligarh Muslim University, Aligarh 202002, India
Department of Mathematics, Aligarh Muslim
India
mursaleenm@gmail.com


A. M.
JARRAH
Department of Mathematics, Yarmouk University, Irbid, Jordan
Department of Mathematics, Yarmouk University,
Jordan


S. A.
MOHIUDDINE
Department of Mathematics, Aligarh Muslim University, Aligarh 202002, India
Department of Mathematics, Aligarh Muslim
India
sequence spaces
invariant mean
matrix transformation
bounded linear operators
ON A SPECIAL CLASS OF FINSLER METRICS
2
2
In this paper, we study projective Randers change and Cconformal change of Preduciblemetrics. Then we show that every Preducible generalized Landsberg metric of dimension n 2 must be aLandsberg metric. This implies that on Randers manifolds the notions of generalized Landsberg metric andBerwald metric are equivalent.
1

179
186


A.
TAYEBI
Department of Mathematics and Computer Science, Qom University, Qom, I. R. of Iran
Department of Mathematics and Computer Science,
Iran


E.
PEYGHAN
Department of Mathematics, Faculty of Science, Arak University, Arak, I. R. of Iran
Department of Mathematics, Faculty of Science,
Iran
epeyghan@gmail.com
Randers metric
Landsberg metric
Berwald metric
Randers change
Cconformal change
A CLASS OF LIFT METRICS ON FINSLER MANIFOLDS
2
2
In this paper, we are going to study the gnatural metrics on the tangent bundle of Finslermanifolds. We concentrate on the complex and Kählerian and Hermitian structures associated with Finslermanifolds via gnatural metrics. We prove that the almost complex structure induced by this metric is acomplex structure on tangent bundle if and only if the Finsler metric is of scalar flag curvature. Then we showthat the complex structure is Hermitian if and only if the Finsler metric is of constant flag curvature.
1

187
194


E.
PEYGHAN
Department of Mathematics and Computer Science, Arak University, Arak, I. R. of Iran
Department of Mathematics and Computer Science,
Iran
epeyghan@araku.ac.ir,


A.
TAYEBI
Department of Mathematics, Faculty of Science, Qom University, Qom, I. R. of Iran
Department of Mathematics, Faculty of Science,
Iran
akbar.tayebi@gmail.com
finsler manifold
Gnatural metrics
Kähler structure
THE INVOLUTEEVOLUTE OFFSETS OF RULED SURFACES
2
2
In this study, a generalization of the theory of involuteevolute curves is presented for ruledsurfaces based on line geometry. Using lines instead of points, two ruled surfaces which are offset in the senseof involuteevolute are defined. Moreover, the found results are clarified using computeraided examples
1

195
201


E.
KASAP
Ondokuz Mayis University, Science and Arts Faculty, Department of Mathematics,
Kurupelit 55139, Samsun, Turkey
Ondokuz Mayis University, Science and Arts
Turkey


S.
YUCE
Yıldız Technical University, Faculty of Arts and Science, Department of Mathematics,
Esenler, 34210, Istanbul, Turkey
Yıldız Technical University, Faculty of Arts
Turkey
sayuce@yildiz.edu.tr


N.
KURUOGLU
University of Bahcesehir, Faculty of Arts and Science, Department of Mathematics and Computer
Sciences, Besiktas, 34100, Istanbul, Turkey
University of Bahcesehir, Faculty of Arts
Turkey
Ruled Surface
involuteevolute
differential geometry
DESIGN AND CONSTRUCTION OF A HIGH PRECISION TAC
2
2
TAC (Time to Amplitude Convertor) is one of the most important time measurement instrumentswhich has great significance in many fields of science, especially radiation physics. A TAC unit has beendesigned based on the STARTSTOP analog method and NIM (Nuclear Instrument Modules) standards. Afterdesigning the circuit, it was simulated by PSPICE software and constructed by discrete and integratedcomponents. Accuracy of performance, linearity and time resolution of the TAC were checked in laboratorycondition and a neutrongamma discrimination experiment was carried out using this TAC. Results of theseexperiments and the spectrum of neutrongamma discrimination completely agree with those from othersimilar TACs, and are, to some extent, better.
1

203
211


F.
ESFANDI
Radiation Application Group, Faculty of Nuclear Engineering, Shahid Beheshti University,
Tehran, I. R. of Iran, Post Box No. 19839631130211
Radiation Application Group, Faculty of Nuclear
Iran


M.
SHAHRIARI
Radiation Application Group, Faculty of Nuclear Engineering, Shahid Beheshti University,
Tehran, I. R. of Iran, Post Box No. 19839631130211
Radiation Application Group, Faculty of Nuclear
Iran


F.
ABBASI DAVANI
Radiation Application Group, Faculty of Nuclear Engineering, Shahid Beheshti University,
Tehran, I. R. of Iran, Post Box No. 19839631130211
Radiation Application Group, Faculty of Nuclear
Iran
fabbasi@sbu.ac.ir


A.
SHARGHI IDO
Shahid Beheshti University, Incubator Center of Technology Units, Tehran, I. R. of Iran
Shahid Beheshti University, Incubator Center
Iran
Time to Amplitude Converter (TAC)
STARTSTOP method
Integral Non Linearity (INL)
time resolution
neutrongamma discrimination