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Entropy, Periodicity, and Graphs with Zero Euler Characteristic
Acta Mathematica Sinica, English Series, 2004zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lü, Jie, Xiong, Jin Cheng, Chen, Jian
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Alpaca semen characteristics previous to a mating period
Animal Reproduction Science, 2002Increasing the knowledge of the semen characteristics in the alpaca will contribute to understanding one of the many factors that affect the poor fertility rate in this species. Ten adult male alpacas, 2.6-10 years of age, average weight 64.7 +/- 4.7 kg were used.
Flores, Paloma +4 more
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Characteristic matrices of layered periodic structures
2015 Days on Diffraction (DD), 2015Method of symmetric polynomials (MSP) is developed to calculations of high powers of matrices. It is based on the new type of recurrence relations between symmetric polynomials of n-th order. New algorithm for computation j-th power of matrix of order n is compared with methods of ordinary multiplication and repeated squaring of matrix. Dependencies of
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On characteristic polynomials of periodic graphs
Discrete Mathematics and Applications, 2004This work considers periodic graphs of two types, chain and cyclic extensions of an arbitrary graph. Some formulas are obtained which express the characteristic polynomials of such constructions in terms of the polynomials of the initial graphs, their subgraphs and the polynomials of a chain and a cycle.
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Periodic Breathing in Preterm Infants: Incidence and Characteristics
Pediatrics, 1989The prevalence and characteristics of periodic breathing in preterm infants were measured by 24-hour impedance pneumograms in 66 preterm infants before discharge from the nursery. Four periodic breathing parameters (percentage of periodic breathing per quiet time, number of episodes of periodic breathing per 100 minutes of quiet time, mean duration of ...
S F, Glotzbach +4 more
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Wave characteristics of a cylinder with periodic ribs
The Journal of the Acoustical Society of America, 2017This paper deals with wave characteristics of a cylinder with periodic ribs. The equation of motion of the stiffened cylinder is first derived using a receptance coupling method. The dispersion diagrams of the stiffened cylinder are then obtained in order to figure out the effects of the ribs on the wave propagation.
Byung-Kyoo, Jung +4 more
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Characteristic Periodic Motion of Polymers in Shear Flow
Physical Review Letters, 2005The motion of both free and tethered polymer molecules as well as rigid Brownian rods in unbound shear flow is found to be characterized by a clear periodicity or tumbling frequency. Periodicity is shown using a combination of single molecule DNA experiments and computer simulations.
Charles M, Schroeder +3 more
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Periods of ordinary abelian varieties in characteristic p
Boletim da Sociedade Brasileira de Matem�tica, 1998Let \(A\) be an abelian variety over a field \(K\) of characteristic \(p>0\) and let \(K_s\) be the separable closure of \(K\). Let \(A^{(p^n)}\) be the image of \(A\) under the \(n\)-th power of the Frobenius and \(V_n: A^{(p^n)}\to A\) the dual isogeny. The period lattice of \(A\) is defined by \(\Lambda= \varprojlim \operatorname {Ker} V_n\).
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[Clinico-morphologic characteristics of periodic disease].
Arkhiv patologii, 1975The article deals with clinico-anatomical characteristics of two observations over periodical disease. Peculiar features of the developing in this case of genetic amyloidosis, which is considered as a disease of accumulation, are analysed.
O M, Vinogradova +2 more
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VIBRATION CHARACTERISTICS OF PERIODIC SANDWICH BEAMS
The International Conference on Applied Mechanics and Mechanical Engineering, 2008Badran, Hossam +2 more
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