تصفح University Publications حسب العنوان
السجلات المعروضة 1384 -- 1403 من 4358
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On estimates of the rate of convergence In the global limit theorems for Homogeneous markov chains
( Qatar University , 1997 , Article)In this paper some estimates are obtained for the remainder term in the limit theorems for the weighted sum of random variables forming a homogeneous Markov chain with arbitrary set of possible states . The achieved results ... -
On Existence Of Two Real Periodic Solutions Of Differential Equations Of Riccati Type
( Qatar University , 1986 , Article)In this paper we consider the two equations z^z^p^z+r^t), (*) z^z^ptOz+r^t), (••) where z € C, p, r) and r^ are real, continuous and periodic with period T. It was shown ... -
On Finite Group Actions On The Solid Klein Bottle
( Qatar University , 1989 , Article)In this paper we classify all G-actions on the solid Klein bottle when G= Z2 and when G= Z^ ® Z2. -
On Improving Communication Software Development Process
( Qatar University , 1995 , Article)This paper aims to standardize the software development process by making use of the well-established hardware development process. The procedure can be applied to any engineering software development process, but we ... -
On Loss Probabilities for Delayed - Access Circuit - Switched Multiplexers
( Qatar University , 1989 , Article)Multiplexing schemes for packetized circuit-switched sources are characterized by an avoidable accessing delay. In the present work it is shown that, contrary to conventional immediate-access multiplexing schemes, one can ... -
On Prosthodendrium parvouterus (Trematoda : Lecithodendriidae) A Parasite of The Bat Taohozous nudiventris
( Qatar University , 1999 , Article)The naked-bellied bat Taphozous nudiventris nudiventris Gretzschmar, 1831 is recorded for the first time from the Qatari Penninsula. Prosthodendrium (Prosthodendrium) parvouterus (Bhalerao, 1926) Dubois, 1955 (Trematoda: ... -
On sexual dimorphism in the shrimp Palaemon pacificus (decapoda: palaemonidae) Collected from the red sea
( Qatar University , 1994 , Article)Palaemon pacificus is common in the Red Sea coast and the sexes are separate. Potential sexual dimorphism in 38 morphological parameters was investigated in a population of Palaemon pacificus collected from the Red Sea ... -
On Some Shrinkage Techniques For Estimating The Parameters Of Exponential Distribution
( Qatar University , 1986 , Article)A variety of shrinkage methods have been proposed for estimation of some unknown parameter by considering estimators based on a prior guess of the value of the parameter. We compare some of the shrunken estimators for the ... -
On Some Tintinnids (Protozoa : Ciliata)From The Strait Of Hormoz And The United Arab Emirates Waters
( Qatar University , 1995 , Article)An examination of plankton samples collected from the oceanic waters of the Strait of Hormoz and the UAE inshore and offshore waters revealed the presence of a diverse community of planktonic Tintinnida (Protozoa). 38 ... -
On Stability in Multiobjective Integer Linear Programming: A Stochastic Approach
( Qatar University , 2006 , Article)In this paper we consider a multiobjective integer linear stochastic programming problem individual chance constraints. We assume that there is randomness in the right-hand sides of the constraints only and that the random ... -
On Symboloic Reasoning and Direct Inference Principle
( Qatar University , 2004 , Article)This paper discusses an approach using the M-valued symbolic logic with syllogistic reasoning and direct inference principle (reasoning from statistical information to conclusions about individuals), to manipu¬late statistical ... -
On the application of arabian gulf water in irrigation: A future possibility
( Qatar University , 1987 , Article)Open seas waters have a chlorinity (Cl%o) of 35%o. Chloride and sodium are the dominant ionic species in sea water; where their gravimetric contents are 89.98 and 77.39% of total anions and cations, respectively. Sodium ... -
On The Behaviour Of The Solutions Of ff …...
( Qatar University , 1984 , Article)The above equation plays an important rote in the geometric theory of functions of a complex variable. To determine interval estimations for its solutions, an inequality is obtained using the fixed point theorem. Then, ... -
On the Classical Multicolor Ramsey Number R(3,3,3)
( Qatar University , 2004 , Article)In this paper, we are interested in the problem of evaluation of the classical multicolor Ramsey number i?(3,3,3). We first convert it successfully into a system of clauses of 3-literals each, i.e., a 3-SAT instance. We ... -
On The Computational Efficiency Of Four Numerical Techniques For Solving The Practical Inverse Kinematics Problem Of Redundant Manipulators
( Qatar University , 1990 , Article)In this paper we compare the computational efficiency of four methods for solving the practical inverse kinematics problem of redundant manipulators. Two methods use recursive approaches for sequential determination of ... -
ON THE CRYSTAL AND HYPERFINE PARAMETERS OF THE HEXAGONAL Ba Cax Sr1_xFe4 O8 MONOFERRITES
( Qatar University , 1983 , Article)The alkaline earth monoferrites BaCaxSr1-xFe4O8 with X = 0,0.5and 1, were studied by Mossbauer spectroscopy and neutron diffractometry over a wide range of temperatures (78 - 900 K). The lattice constants were obtained ... -
On the Design of Bit-Slice Processors
( Qatar University , 1988 , Article)In the past decade, fixed instruction microprocessors have evolved from 4 bits to 32 bits. Their compact design and relative low cost have made them very popular with design engineers. Their use extends into a lot of ... -
On the direct problem and scattering data for a singular system of differential Equations with discontinuous coefficients
( Qatar University , 1996 , Article)A system of Sturm-Liouiville differential equations of order n with a density matrix function is considered. The direct problem of the considered system is studied and hence the scattering data of the problem is obtained. -
On The Earthworm Fauna And Distribution In The State Of Qatar
( Qatar University , 1986 , Article)This paper is a preliminary account of the earthworms collected in February and March, 1986, from 10 localities in Qatar. Five species, Amynthas corticis (Family Megascolecidae), Dichogaster bolaui (Family Octochaetidae), ... -
On the effectiveness of the vlf-em method For ground water prospecting in the Basement terrains, Sinai, Egypt
( Qatar University , 1997 , Article)The VLF-EM method is proved to be an effective, fast and inexpensive tool for ground water prospecting in the basement terrains of Southern Sinai. The resistive shallow alluvial deposits increase the penetration depth of ...
