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Benmahammed Mohamed Amine Mouloud Abdelrazak 《Journal of Mechanical Science and Technology》2018,32(12):5973-5987
Journal of Mechanical Science and Technology - The investigation of the possibility to optimize ballistic behavior and consequently to obtain better performance without affecting the cost and... 相似文献
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The data-based partial and complete reliability coefficients defined by G. Becker (2000) in his staggered equivalent split-half procedure (SESHP) were compared with the model-based specificity and consistency reliability coefficients defined by R. Steyer, M. J. Schmitt, and M. Eid (1999) in their latent state-trait model (LSTM). Partial reliability is based on coefficient alpha, which contains transient error. State and trait anxiety, measured using the State-Trait Anxiety Inventory on 2 occasions among French adults, illustrated both approaches. Theoretical and empirical analyses demonstrated that the specificity and consistency coefficients offer a testable alternative to the SESHP coefficients. In addition, dynamics of the state residual variance could be modeled and estimated in LSTM. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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Abdelrazak Jmel Ezzeddine Salhi Gioia Vago 《Dynamical Systems: An International Journal》2013,28(2):203-213
In this paper, we study the three following types of homeomorphisms of the Sierpinski curve of the two sphere : pointwise periodic, periodic, and almost periodic, and we prove that they are equivalent. We show that a subgroup of homeomorphisms whose orbits are all finite, is a finite subgroup. 相似文献
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Jmel Abdelrazak 《Dynamical Systems: An International Journal》2015,30(1):34-44
In this paper, pointwise periodic homeomorphisms of some special dendrites are considered. In particular, an example of such homeomorphism, which is not periodic, is given on the Gehman dendrite. We characterize dendrites on which pointwise periodic implies periodic. 相似文献
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Sidi Abdelrazak Ennaciri Karen Malka Catherine Louis Philippe Barboux Chakib R'Kha Jacques Livage 《Catalysis Letters》1999,62(1):79-85
Vanadium phosphates with variable specific surface areas were synthesized from vanadium alkoxides and phosphoric acid by precipitation
in various solvents. The catalytic properties were studied in the reaction of methanol oxidation. Although the specific activities
increase with the specific surface areas (BET), the intrinsic activities seem to depend on the particle morphology. The selectivities
do not vary within a large range. The same method of precipitation was applied to prepare vanadium phosphates on a silica
support. It is shown that the supported phase is highly dispersed, and that these supported catalysts are more stable than
silica‐supported vanadium oxide for methanol oxidation.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
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