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Journal articles on the topic 'Parametr K(t)'

Author: Grafiati

Published: 28 June 2021

Last updated: 29 July 2025

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1

DOLIŃSKA, Anna, Dariusz GÓRKA, Michał TRZĘSICKI, Natalia BIAŁOŃ, and Mikołaj GÓRKA. "The role of training and hyperbaria in the rehabilitation process after crushing injury of the sciatic nerve in mice - assessment of functional parameters using the CATWALK XT platform." Journal of Education, Health and Sport 13, no. 4 (2023): 150–59. https://doi.org/10.12775/JEHS.2023.13.04.016.

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<strong>DOLIŃSKA, Anna, GÓRKA, Dariusz, TRZĘSICKI, Michał, BIAŁOŃ, Natalia & GÓRKA, Mikołaj. The role of training and hyperbaria in the rehabilitation process after crushing injury of the sciatic nerve in mice - assessment of functional parameters using the CATWALK XT platform</strong><strong>.</strong> <strong>Journal of Education, Health and Sport. 202</strong><strong>3</strong><strong>;1</strong><strong>3</strong><strong>(</strong><strong>4</strong><strong>):</strong><strong>150-159.</strong><strong> eISSN 2391-8306. DOI </strong><strong>http://dx.doi.org/10.1277

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2

TABUCHI, Toshiaki, Takashi SOEDA, Terushige KAWATA, and Mitsuru SOEDA. "Parameter Estimation of ARMA Process by Taking into Consideration of ^|^part;kx(t)/^|^part;^|^alpha;T^|^middot;^|^epsilon;(t)." Transactions of the Society of Instrument and Control Engineers 24, no. 4 (1988): 357–62. http://dx.doi.org/10.9746/sicetr1965.24.357.

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3

Petzschner, Frederike H., Irene P. Ponce, Martin Blaimer, Peter M. Jakob, and Felix A. Breuer. "Fast MR parameter mapping using k-t principal component analysis." Magnetic Resonance in Medicine 66, no. 3 (2011): 706–16. http://dx.doi.org/10.1002/mrm.22826.

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4

Falcon, Sergio. "On the Extended (k, t) - Fibonacci Numbers." Journal of Advances in Mathematics and Computer Science 39, no. 7 (2024): 81–89. http://dx.doi.org/10.9734/jamcs/2024/v39i71914.

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This article studies an extension of the concept of k-Fibonacci numbers by introducing a new non-zero positive integer parameter t. In case t = 1, the numbers found are the Leonardo numbers. A homogeneous recurrence relationship is found between these new numbers, and various formulas are studied such as the Binet Identity or the generating function.

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5

Shankar, Sujay, Michael A. Gully-Santiago, and Caroline V. Morley. "A New Hybrid Machine Learning Method for Stellar Parameter Inference." Astrophysical Journal 985, no. 1 (2025): 68. https://doi.org/10.3847/1538-4357/adcb47.

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Abstract The advent of machine learning (ML) is revolutionary to numerous scientific disciplines, with a growing number of examples in astronomical spectroscopic inference, as ML is more powerful than traditional techniques. Here we introduce a hybrid ML (HML) method combining automatic differentiation, interpolation, and Bayesian optimization to infer stellar parameters of stellar spectra. We study T eff, log ( g ) , and [Fe/H], but this method could be extended to other parameters such as [α/Fe] (alpha element abundance), C/O (carbon–oxygen ratio), and f sed (sedimentation efficiency). We fi

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Chuan-Hui, N., and S. Xiao-Bao. "Grüneisen parameter of lithium, sodium and potassium at T=298 K." Journal of Physics and Chemistry of Solids 62, no. 7 (2001): 1359–61. http://dx.doi.org/10.1016/s0022-3697(01)00007-5.

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7

Магомедов, Рамазан Абдуллаевич, and Энвер Нариманович Ахмедов. "WATER VAPOR P-p-T PROPERTIES CALCULATION IN THE TEMPERATURE RANGE FROM 773 K TO 1673 K." Physical and Chemical Aspects of the Study of Clusters, Nanostructures and Nanomaterials, no. 14 (December 15, 2022): 298–306. http://dx.doi.org/10.26456/pcascnn/2022.14.298.

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В работе представлен расчёт изотерм уравнения состояния водяного пара в диапазоне температур от Т = 773 K до Т = 1673 K. Расчёт произведён с помощью специально разработанного программного модуля «Fract EOS». Предложен подход повышающий точность расчётов ранее описной методики. Если имеются табличные данные соотношения P-V-T (P-p-T) для нескольких температур и полученные по ним зависимости показателя производной дробного порядка ) (который является подгоночным), то можно с помощью интерполяции по температуре для нескольких значений плотности получить зависимость для температуры внутри диапазона

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8

Deshmukh, Mangesh R., Ganesh M. Bansode, and Pallavi Mahajan. "EVALUATION OF POTATO CULTIVAR FOR GROWTH AND YIELD PARAMETER." World Journal of Biology and Biotechnology 3, no. 1 (2018): 203. http://dx.doi.org/10.33865/wjb.003.01.0138.

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The present investigation on evaluation of varietal performance of various potato varieties under Pune Conditions was initiated in Oct 2012. Potato tubers of Kufri Lauvkar, Kufri Badshah, Kufri Pushkar, Kufri Surya, Kufri Khyati, Kufri Ashoka, Kufri Jyoti, Kufri Pukharaj were planted on ridges and furrows. The results revealed that Kufri Surya recorded significantly higher total tuber yield (20.67 t/ha) followed by Kufri Pukharaj (18.45 t/ha). However percent plant emergence and foliage senescence were found non-significant. Whereas results in respect of yield depicted that the variety Kufri L

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9

Mukherjee, Somnath. "Some Studies on K-essence Lagrangian." International Journal of Innovative Research in Physics 2, no. 2 (2021): 9–14. http://dx.doi.org/10.15864/ijiip.2202.

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K-essence Lagrangian is studied in the context of an early universe epoch when t → 0. Equation of state parameter ω < −1 as well as deceleration parameter q0 < −1, indicates an accelerated expansion of the universe at an early epoch of time driven by negative pressure generated by dark energy.

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10

Ye, Wen Ming, Xu Teng Hu, Wan Lin Guo, and Ying Dong Song. "Three Dimensional Criterion for Creep Crack Propagation in C(T) Specimen." Applied Mechanics and Materials 853 (September 2016): 142–47. http://dx.doi.org/10.4028/www.scientific.net/amm.853.142.

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Experimental of two kinds of compact tension (CT) specimens’ creep crack propagation are carried out in this paper. Traditional fracture mechanics and three-dimensional fracture theory are compared and the results show that: The K-Tz two-parameter model can eliminate the thickness-effect on the crack growth rates in the relatively low K range, however when K exceed certain values the effect of thickness for crack growth rates still exists; The Ct and Ct-Tz model can describe the thickness-effect of creep crack growth rates in regions of high Ct; When the crack tip stress intensity factor K of

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11

Kristoffel, N., and T. Örd. "The Pseudogap and Superconductivity Order Parameter Fluctuations." International Journal of Modern Physics B 12, no. 29n31 (1998): 3106–9. http://dx.doi.org/10.1142/s0217979298002155.

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The influence of superconductivity unequilibrium order parameter correlated fluctuations on the normal phase elementary excitations have been investigated. Correspondingly a fluctuating source of pairs appears in the effective Hamiltonian described using the Gaussian free energy functional. A pseudogap (E g ) is found on the Fermi surface decreasing with rising temperature. It is scaled with the parameter α = ∊ F /k B T c . For smaller α-s E g develops more over T c . In non-high-T c systems and overdoped high-T c compounds the pseudogap is suppressed.

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12

Li, Guo, Li Li, and Peng Zhu. "Galloping Control for Iced Conductors Using Tuned Mass Dampers with Fixed Time-Delayed Feedback." Shock and Vibration 2019 (February 27, 2019): 1–9. http://dx.doi.org/10.1155/2019/4823457.

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A tuned mass damper with fixed time-delay feedbacks (TTMD) is first applied to suppress galloping of iced conductors. It is different from general time-delay feedback control, which also connects an added mass to a galloping body and can absorb vibrational energy. The two-degrees-of-freedom model captures the essential mechanical behaviors of iced conductors with TTMD undergoing galloping. The harmonic balance method is then employed to obtain the approximate analytical solutions of the system. Particularly, the expressions of galloping amplitude and angle frequency were obtained. Then the inf

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13

Ludwig, Donald. "Estimation Techniques for Distributed Parameter Systems (H. T. Banks and K. Kunisch)." SIAM Review 33, no. 3 (1991): 486–87. http://dx.doi.org/10.1137/1033115.

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14

Tseng, Jimmy. "Eisenstein series and an asymptotic for the K-Bessel function." Ramanujan Journal 56, no. 1 (2021): 323–45. http://dx.doi.org/10.1007/s11139-020-00358-8.

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AbstractWe produce an estimate for the K-Bessel function $$K_{r + i t}(y)$$ K r + i t ( y ) with positive, real argument y and of large complex order $$r+it$$ r + i t where r is bounded and $$t = y \sin \theta $$ t = y sin θ for a fixed parameter $$0\le \theta \le \pi /2$$ 0 ≤ θ ≤ π / 2 or $$t= y \cosh \mu $$ t = y cosh μ for a fixed parameter $$\mu >0$$ μ > 0 . In particular, we compute the dominant term of the asymptotic expansion of $$K_{r + i t}(y)$$ K r + i t ( y ) as $$y \rightarrow \infty $$ y → ∞ . When t and y are close (or equal), we also give a uniform estimate. As an applicat

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15

Русаков, В. С., В. С. Покатилов, А. С. Сигов, А. А. Белик та М. Е. Мацнев. "Температурные изменения магнитной структуры мультиферроика BiFe-=SUB=-0.80-=/SUB=-Cr-=SUB=-0.20-=/SUB=-O-=SUB=-3-=/SUB=-". Физика твердого тела 61, № 6 (2019): 1107. http://dx.doi.org/10.21883/ftt.2019.06.47686.340.

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AbstractThe results of a Mössbauer study of the magnetic structure of multiferroic BiFe_0.80Cr_0.20O_3 in the temperature range of 5–550 K are presented. It is found that a collinear antiferromagnetic structure of the G type is present in BiFe_0.80Cr_0.20O_3 at temperatures below 260 K. Above 260 K, an anharmonic spin wave with a magnetic anisotropy of the easy-axis type with a high value of the anharmonicity parameter m arises. With a further increase in the temperature, the m parameter decreases and tends to zero at T ~ 420 K, at which a harmonic spin wave comes into existence. Above a tempe

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16

Betego´n, C., and J. W. Hancock. "Two-Parameter Characterization of Elastic-Plastic Crack-Tip Fields." Journal of Applied Mechanics 58, no. 1 (1991): 104–10. http://dx.doi.org/10.1115/1.2897135.

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Plane-strain elastic-plastic crack-tip fields have been modeled with modified boundary layer formulations based on the first two terms K and T, of the elastic field. These formulations match the appropriate full field solutions. Compressive T stresses reduce the stresses by an amount which is independent of radial distance, corresponding to the introduction of a second term in addition to the dominant plastic singularity. Geometries which maintain J-dominance are characterized by zero or positive T stresses, while geometries with negative T stresses can be described by a two-parameter characte

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17

Ross, Sheldon M. "THE MEAN WAITING TIME FOR A PATTERN." Probability in the Engineering and Informational Sciences 13, no. 1 (1999): 1–9. http://dx.doi.org/10.1017/s0269964899131012.

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Consider a sequence of independent and identically distributed random variables along with a specified set of k-vectors. We present an expression for E [T], the mean time until the last k observed random variables fall within this set. Not only can this expression often be used to obtain bounds on E[T], it also gives rise to an efficient way of approximating E[T] by a simulation. Specific lower and upper bounds for E[T] are also derived. These latter bounds are given in terms of a parameter, and a Markov chain Monte Carlo approach to approximate this parameter by a simulation is indicated. The

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18

Dimitrijevic, M. S., and S. Sahal−Bréchot. "Stark broadening parameter tables for In III, Tl III and Pb IV." Serbian Astronomical Journal, no. 158 (1998): 81–91. http://dx.doi.org/10.2298/saj9858081d.

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Using a semiclassical approach, we have calculated electron-, proton-, and ionized helium-impact line widths and shifts for 20 In III multiplets for perturber densities 1014? 1020 cm?3 and 2 Tl III multiplets for perturber densities 1017 ? 1020 cm?3, and temperatures T = 20,000 ? 500,000 K, in both cases. We have calculated as well, electron-, proton-, and He III-impact line widths and shifts for 2 Pb IV multiplets, for perturber densities 1017? 1020 cm?3 and temperatures T = 50,000 ? 1,000,000 K.

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19

Landry, Alexandre. "Scalar Field Source Teleparallel Robertson–Walker F(T) Gravity Solutions." Mathematics 13, no. 3 (2025): 374. https://doi.org/10.3390/math13030374.

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This paper investigates the teleparallel Robertson–Walker (TRW) F(T) gravity solutions for a scalar field source. We use the TRW F(T) gravity field equations (FEs) for each k-parameter value case added by a scalar field to find new teleparallel F(T) solutions. For k=0, we find an easy-to-compute F(T) solution formula applicable for any scalar field source. Then, we obtain, for k=−1 and +1 situations, some new analytical F(T) solutions, only for specific n-parameter values and well-determined scalar field cases. We can find by those computations a large number of analytical teleparallel F(T) so

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20

Li, Chen, Hiroyuki Okamura, and Tadashi Dohi. "Parameter Estimation of $M_{t}/M/1/K$ Queueing Systems With Utilization Data." IEEE Access 7 (2019): 42664–71. http://dx.doi.org/10.1109/access.2019.2906796.

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21

Ceci, S., A. Švarc, B. Zauner, D. M. Manley, and S. Capstick. "Model-independent resonance parameter extraction from the trace of K and T matrices." Physics Letters B 659, no. 1-2 (2008): 228–33. http://dx.doi.org/10.1016/j.physletb.2007.11.003.

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22

HAO, ZHIDONG. "THE EXACT SOLUTION OF THE BCS SELF-CONSISTENCY EQUATION AND THE IMPLICATIONS." Modern Physics Letters B 07, no. 22 (1993): 1439–47. http://dx.doi.org/10.1142/s021798499300148x.

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The existence of a first order differential equation for the temperature dependence of the energy gap parameter Δk for each k state is pointed out. By using this equation, exact solution for the energy and temperature dependences of Δk is obtained. The energy range over which Δk is appreciable is within a few kBT c around the Fermi surface. Each k state may have its own temperature T c k, above which Δk = 0. In general, these T c k are not necessarily the same for all k states (the superconducting transition temperature T c corresponds to the largest T c k). Limitations of the BCS cutoff appro

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23

Venttsel’, V. A., A. E. Petrova, and A. V. Rudnev. "Magnetic susceptibility of high-T c superconducting ceramic Tl3Ca7Ba3Cu8O7." Soviet Journal of Low Temperature Physics 16, no. 1 (1990): 60–62. https://doi.org/10.1063/10.0032329.

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The ac magnetic susceptibility of HTS ceramic Tl3Ca7Ba3Cu8O7 is measured by using the bridge method. The critical parameters Tc = 100 K and Hc1 ≈ 15 Oe are estimated at T→0; below 50 K, Hc2 linearly decreases with temperature [Hc2 = 440-8.4T (kOe)], while above 50 K it decreases according to a power law [Hc2 = 275(1 – T/Tc)3.5 (kOe)]. The Ginzburg-Landau parameter is estimated as x(0) ≃ 300, x(Tc) ≈ 8, and x(T) ∝ x0(1 – T/Tc)1.6.

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24

Peng, Xiao-Long. "Preferential attachment network model with aging and initial attractiveness." Communications in Theoretical Physics 74, no. 3 (2022): 035603. http://dx.doi.org/10.1088/1572-9494/ac5322.

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Abstract In this paper, we generalize the growing network model with preferential attachment for new links to simultaneously include aging and initial attractiveness of nodes. The network evolves with the addition of a new node per unit time, and each new node has m new links that with probability Π i are connected to nodes i already present in the network. In our model, the preferential attachment probability Π i is proportional not only to k i + A, the sum of the old node i's degree k i and its initial attractiveness A, but also to the aging factor τ i − α , where τ i is the age of the old n

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25

Usoltsev, A. S., A. T. Daniyarkhodzhaev, A. A. Gippius, and A. V. Sadakov. "Superconducting Order Parameter of the RbCa2Fe4As4F2 Compound." JETP Letters 120, no. 12 (2024): 923–31. https://doi.org/10.1134/s0021364024604445.

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The superconducting order parameter of the RbCa2Fe4As4F2 compound belonging to the new 12442 family of iron-based superconductors with a critical temperature of T c ~ 32 K has been studied. Two superconducting condensates with the order parameters ΔL ~ 6.3 meV and ΔS ~ 2.8 meV have been detected for the first time by multiple Andreev reflection spectroscopy. The temperature dependence of the superconducting critical current density J c(T) in the intrinsic field has been measured. The approximation of the dependence J c(T) demonstrates the correspondence of the experimental data to the double-g

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26

Romero Yanes, José F., Moacir F. L. da Costa, João P. G. Sampaio, Angélica M. Chacón Valero, Filipe X. Feitosa, and Hosiberto B. de Sant'Ana. "Experimental phase behavior and solubility parameter for crude oil + methane [T = 311.15–373.15 K] and crude oil + methane + CO2 mixtures [T = 343.15–383.15 K]." Fuel 288 (March 2021): 119675. http://dx.doi.org/10.1016/j.fuel.2020.119675.

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27

Journal, Baghdad Science. "Study the Characteristic of the Coupling Parameter ( ? ) in Dusty Plasma by Computer modeling." Baghdad Science Journal 7, no. 1 (2010): 98–104. http://dx.doi.org/10.21123/bsj.7.1.98-104.

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Computer modeling has been used to investing the Coulomb coupling parameter ?. The effects of the structure parameter K, grain charge Z, plasma density N, temperature dust grain Td, on the Coulomb coupling parameter had been studied. It was seen that the ? was increasing with increasing Z and N, and decrease with increasing K and T. Also the critical value of ? that the phase transfer of the plasma state from liquid to solid was studied.

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28

Sultan, Hummara, Uzma Jan, and S. P. Ahmad. "Bayesian Normal and T-K Approximations for Shape Parameter of Type-I Dagum Distribution." International Journal of Mathematical Sciences and Computing 4, no. 3 (2018): 13–22. http://dx.doi.org/10.5815/ijmsc.2018.03.02.

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29

Razavi, F. S., Y. Rohanizadegan, M. Hajialamdari, M. Reedyk, R. K. Kremer, and B. Mitrović. "The effect of quasiparticle self-energy on Cd2Re2O7 superconductor." Canadian Journal of Physics 93, no. 12 (2015): 1646–50. http://dx.doi.org/10.1139/cjp-2015-0173.

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The magnitude and the temperature dependence of the superconducting order parameter Δ(T) of single crystals of Cd2Re2O7 (Tc = 1.02 K) was measured using point-contact spectroscopy. To fit the conductance spectra and to extract the order parameter at different temperatures we generalized the Blonder–Tinkham–Klapwijk theory by including the self-energy of the quasiparticles into the Bogoliubov equations. This modification enabled excellent fits of the conductance spectra. Δ(T) increases steeply below the superconducting transition temperature of 1.02 K and levels off below ∼0.8 K at a value of 0

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30

R., Singhai, K. Tiwari V., and N. Limaye S. "Trends in spectral parameters and nephelauxetic ratio values for some lanthanoid(III)-tiron complexes. Part-II." Journal of Indian Chemical Society Vol. 80, Jun 2003 (2003): 640–41. https://doi.org/10.5281/zenodo.5839850.

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Department of Chemistry, Dr. H. S. Gour University, Sagar-470 003, India <em>E-mail</em> : rashmitiwari@epatra.com <em>Manuscript received 2 September 2002. accepted 21 .January 2003</em> Electronic spectral studies of Pr<sup>III</sup>, Nd<sup>III</sup> and Er<sup>III</sup> in complexation with liron have been undertaken with a view to evaluate the oscillator strengths (<em>f</em><sub>JO</sub>), Judd-Ofelt parameters ( <em>t</em><sub>λ</sub>), inter·-electronic repulsion reacah parameters (<em>δE</em><sup>k</sup>) and nephelauxetic ra

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31

Zhang, Xuemei. "Parameter Dependence of Positive Solutions for Second-Order Singular Neumann Boundary Value Problems with Impulsive Effects." Abstract and Applied Analysis 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/968792.

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The author considers the Neumann boundary value problem-y′′t+Myt=λωtft,yt, t∈J, t≠tk, -Δy′|t=tk=λIktk,ytk, k=1,2,…,m, y′(0)=y′(1)=0and establishes the dependence results of the solution on the parameterλ, which cover equations without impulsive effects and are compared with some recent results by Nieto and O’Regan.

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32

Choi, Jae. "Conditional wiener integral associated with Gaussian processes and applications." Filomat 37, no. 26 (2023): 8791–811. http://dx.doi.org/10.2298/fil2326791c.

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Let C0[0,T] denote the one-parameter Wiener space and let C?0[0,T] be the Cameron-Martin space in C0[0,T]. Given a function k in C?0[0,T], define a stochastic process Zk : C0[0,T] ? [0, T] ? R by Zk(x, t) = R t 0 Dk(s)dx(s), where Dk ? d/dt k. Let a random vector XG,k : C0[0,T] ? Rn be given by XG,k(x) = ((g1,Zk(x,?))~,..., (gn,Zk(x,?))~), where G = {g1, ..., gn} is an orthonormal set with respect to the weighted inner product induced by the function k on the space C?0[0,T], and (g,Zk(x,?))~ denotes the Paley-Wiener-Zygmund stochastic integral. In this paper, using the reproducing kernel prope

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33

Zubair, M. "Phantom crossing with collisional matter in f(T) gravity." International Journal of Modern Physics D 25, no. 05 (2016): 1650057. http://dx.doi.org/10.1142/s0218271816500577.

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We study the late-time cosmological evolution of [Formula: see text] (where [Formula: see text] is the torsion scalar) theories with matter contents consisting of collisional self-interacting matter and radiations. The power law, exponential and logarithmic [Formula: see text] models are considered to explore the evolution of Hubble parameter [Formula: see text], dark energy (DE) equation of state (EoS) [Formula: see text] and effective EoS parameter [Formula: see text]. We show that crossing of phantom divide line can be realized in the presence of collisional matter as compared to the result

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34

Medak, B., and A. A. Tret’yakov. "ON THE APPLICATION OF THE SOLUTION OF THE DEGENERATE NONLINEAR BURGERS EQUATION WITH A SMALL PARAMETER AND THE THEORY OF <i>p</i>-REGULARITY." Доклады Российской академии наук. Математика, информатика, процессы управления 512, no. 1 (2023): 5–9. http://dx.doi.org/10.31857/s2686954323700236.

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The article discusses various modifications of the nonlinear Burgers equation with small parameter and degenerate in solution of the form\(F(u,\varepsilon ) = {{u}_{t}} - {{u}_{{xx}}} + u{{u}_{x}} + \varepsilon {{u}^{2}} - f(x,t) = 0,\) (1)where \(F:\Omega \to C([0,\pi ] \times [0,T])\), \(T 0\), \(\Omega = {{C}^{2}}([0,\pi ] \times [0,T]\,)\,\mathbb{R}\) and \(u(0,t) = u(\pi ,t) = 0\), \(u(x,0) = \varphi (x)\), \(f(x,t) \in C([0,\pi ] \times [0,T])\), \(\varphi (x) \in C[0,\pi ]\). We will be interested in the most important in applications case of a small parameter ε with oscillating initial

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35

HEALY, PATRICK, and KAROL LYNCH. "TWO FIXED-PARAMETER TRACTABLE ALGORITHMS FOR TESTING UPWARD PLANARITY." International Journal of Foundations of Computer Science 17, no. 05 (2006): 1095–114. http://dx.doi.org/10.1142/s0129054106004285.

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In this paper we consider the problem of testing an arbitrary digraph G = (V,E) for upward planarity. In particular we describe two fixed-parameter tractable algorithms for testing the upward planarity of G. The first algorithm that we present can test the upward planarity of G in O(2t · t! · |V|2)-time where t is the number of triconnected components of G. The second algorithm that we present uses a standard technique known as kernelisation and can test the upward planarity of G in O(|V|2 + k4 · (2k)!)-time, where k = |E| - |V|.

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36

RUSLAN, AHMAD BASRI. "Prediction Modelling Through Chaotic Approach on Ozone (O3) Pollutant Time Series in Shah Alam City." ASM Science Journal 17 (July 27, 2022): 1–9. http://dx.doi.org/10.32802/asmscj.2022.1159.

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Studies on Ozone (O3) particles and their effect have become a significant concern. Exposure to high concentrations of O3 can cause an adverse reaction in the human respiratory system. Therefore, this study aims to predict the monthly O3 time series in the highly populated area of Shah Alam through a chaotic approach. The phase space plot and Cao methods successfully detected the chaotic behaviour O3 time series data. The three parameters are determined before the prediction process: time delay t, embedded dimension m, and nearest neighbour k. This study used t=1 and the value of m is calculat

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Aktaş, Can, Sezgin Aygün, and Pradyumn Kumar Sahoo. "Relationship between magnetic field and anisotropy parameter in gravitation theories." Modern Physics Letters A 33, no. 24 (2018): 1850135. http://dx.doi.org/10.1142/s0217732318501353.

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The magnetized strange quark matter (MSQM) solutions are obtained for a Marder type universe using constant deceleration parameter. The exact solutions of field equations are obtained for f(R,[Formula: see text]T) = R + 2f(T) model given by [T. Harko et al., Phys. Rev. D 84, 024020 (2011)] with cosmological term. Also, we have obtained General Relativity (GR) solutions for MSQM distributions. For [Formula: see text], we get the dark energy model, i.e. [Formula: see text], [Formula: see text] and [Formula: see text]. However, for [Formula: see text], we find the cosmological constant [Formula:

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Kisic, I., I. Bogunovic, Z. Zgorelec, and D. Bilandzija. "Effects of soil erosion by water under different tillage treatments on distribution of soil chemical parameters." Soil and Water Research 13, No. 1 (2018): 36–43. http://dx.doi.org/10.17221/25/2017-swr.

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Soil losses by water erosion were studied under six different tillage treatments, which differ in depth and direction of tillage and planting during a twenty-year period (1995–2014) on Stagnosols in central lowland Croatia. Studied tillage treatments were: control plot (bare fallow-BF), ploughing up and down the slope to 30 cm (PUDS), no-tillage (NT), ploughing across the slope to 30 cm (PAS), very deep ploughing across the slope to 50 cm (VDPAS), and subsoiling to 50 cm + ploughing to 30 cm across the slope (SSPAS). The paper presents the following chemical parameters: soil pH, soil organic m

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CARMINATI, CARLO, and GIULIO TIOZZO. "The local Hölder exponent for the dimension of invariant subsets of the circle." Ergodic Theory and Dynamical Systems 37, no. 6 (2016): 1825–40. http://dx.doi.org/10.1017/etds.2015.135.

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We consider for each $t$ the set $K(t)$ of points of the circle whose forward orbit for the doubling map does not intersect $(0,t)$, and look at the dimension function $\unicode[STIX]{x1D702}(t):=\text{H.dim}\,K(t)$. We prove that at every bifurcation parameter $t$, the local Hölder exponent of the dimension function equals the value of the function $\unicode[STIX]{x1D702}(t)$ itself. A similar statement holds for general expanding maps of the circle: namely, we consider the topological entropy of the map restricted to the survival set, and obtain bounds on its local Hölder exponent in terms o

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Dinnebier, Robert E., Wayne A. Dollase, Xavier Helluy, et al. "Order–disorder phenomena determined by high-resolution powder diffraction: the structures of tetrakis(trimethylsilyl)methane C[Si(CH3)3]4 and tetrakis(trimethylsilyl)silane Si[Si(CH3)3]4." Acta Crystallographica Section B Structural Science 55, no. 6 (1999): 1014–29. http://dx.doi.org/10.1107/s0108768199006126.

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The compounds tetrakis(trimethylsilyl)methane C[Si(CH3)3]4 (TC) and tetrakis(trimethylsilyl)silane Si[Si(CH3)3]4 (TSi) have crystal structures with the molecules in a cubic closed-packed (c.c.p.) stacking. At room temperature both structures have space group Fm{\bar 3}m (Z = 4) with a = 13.5218 (1) Å, V = 2472.3 (1) Å3 for TSi, and a = 12.8902 (2) Å, V = 2141.8 (1) Å3 for TC. X-ray scattering data can be described by a molecule with approximately sixfold orientational disorder, ruling out a structure with free rotating molecules. Upon cooling, TSi exhibits a first-order phase transition at T c

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TOYOKI, HIROYASU. "PHASE ORDERING SIMULATION OF VECTOR ORDER-PARAMETERS WITHOUT SINGULAR DEFECTS." Modern Physics Letters B 07, no. 06 (1993): 397–403. http://dx.doi.org/10.1142/s0217984993000394.

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Cell dynamical study of phase ordering dynamics is presented for vector order-parameter systems without singular defects. The structure factor satisfies the scaling relation; S (k, t) = l (t)2 g(kl(t)), whose tail at kl ≫ 1 is characterized by a single power as g (x) ~ x −χ. The exponent χ is larger than an analytical value χ = d + n where n and d are the dimensionality of order-parameter and space respectively. The characteristic length varies as l (t) ~ t0.5 for n ≥ 4 while the growth for n = 3 is slower than that.

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Meliani, M. Hadj, Y. G. Matvienko та G. Pluvinage. "Two-parameter fracture criterion (K ρ,c -T ef,c ) based on notch fracture mechanics". International Journal of Fracture 167, № 2 (2010): 173–82. http://dx.doi.org/10.1007/s10704-010-9542-1.

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LEBED, A. G. "MAGNETIC TESTS TO REVEAL TRIPLET SUPERCONDUCTIVITY IN (TMTSF)2PF6 AND A POSSIBLE BREAKING OF A TIME REVERSAL SYMMETRY IN Sr2RuO4, LBCO, and YBCO." International Journal of Modern Physics B 16, no. 20n22 (2002): 3198. http://dx.doi.org/10.1142/s0217979202013936.

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We propose methods to reveal the existence of a two-component triplet order parameter (which is recently suggested to break a time reversal symmetry in Sr 2 RuO 4) and to test a possible two-component singlet d-wave order parameter in high- T c superconductors (which may also break the time reversal symmetry). We have also determined a spin part (i.e., d(k) = [dx(k) ≠ 0, dy(k) = 0, dz(k) = 0)] of a triplet order parameter1,2 in (TMTSF) 2 PF 6 under pressure by means of an analysis of the experimental H c2 measurements (I. J. Lee et al., Phys. Rev. Lett. 78, 3555 (1997)).

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Hilgart, Tobias, and Volker Ziegler. "On a conjecture of Levesque and Waldschmidt." Glasnik Matematicki 60, no. 1 (2025): 1–19. https://doi.org/10.3336/gm.60.1.01.

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One of the first parametrised Thue equations, \[ \hspace{-18ex}\left| X^3 - (n-1)X^2 Y - (n+2) XY^2 - Y^3 \right| = 1, \] over the integers was solved by E. Thomas in 1990. If we interpret this as a norm-form equation, we can write this as \[ \hspace{-18ex} \left| N_{K/\mathbb{Q}}\left( X - \lambda_0 Y \right) \right| = \left| \left( X-\lambda_0 Y \right) \left( X-\lambda_1 Y \right) \left( X-\lambda_2 Y \right) \right| =1 \] if \(\lambda_0, \lambda_1, \lambda_2\) are the roots of the defining irreducible polynomial, and \(K\) is the corresponding number field. Levesque and Waldschmidt twisted

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El Amrouss, Abdelrachid, and Omar Hammouti. "Spectrum of discrete 2n-th order difference operator with periodic boundary conditions and its applications." Opuscula Mathematica 41, no. 4 (2021): 489–507. http://dx.doi.org/10.7494/opmath.2021.41.4.489.

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Let \(n\in\mathbb{N}^{*}\), and \(N\geq n\) be an integer. We study the spectrum of discrete linear \(2n\)-th order eigenvalue problems \[\begin{cases}\sum_{k=0}^{n}(-1)^{k}\Delta^{2k}u(t-k) = \lambda u(t) ,\quad & t\in[1, N]_{\mathbb{Z}}, \\ \Delta^{i}u(-(n-1))=\Delta^{i}u(N-(n-1)),\quad & i\in[0, 2n-1]_{\mathbb{Z}},\end{cases}\] where \(\lambda\) is a parameter. As an application of this spectrum result, we show the existence of a solution of discrete nonlinear \(2n\)-th order problems by applying the variational methods and critical point theory.

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BRASS, PETER, CHRISTIAN KNAUER, HYEON-SUK NA, CHAN-SU SHIN, and ANTOINE VIGNERON. "THE ALIGNED K-CENTER PROBLEM." International Journal of Computational Geometry & Applications 21, no. 02 (2011): 157–78. http://dx.doi.org/10.1142/s0218195911003597.

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In this paper we study several instances of the alignedk-center problem where the goal is, given a set of points S in the plane and a parameter k ⩾ 1, to find k disks with centers on a line ℓ such that their union covers S and the maximum radius of the disks is minimized. This problem is a constrained version of the well-known k-center problem in which the centers are constrained to lie in a particular region such as a segment, a line, or a polygon. We first consider the simplest version of the problem where the line ℓ is given in advance; we can solve this problem in time O(n log 2 n). In the

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Soukotta, Imanuel Vt, and Suradi Wijaya Saputra. "Parameter Pertumbuhan (L∞, K , T0) dan Tingkat Kematangan Gonad Ikan Cakalang Katsuwonus pelamis." Jurnal Laut Pulau: Hasil Penelitian Kelautan 2, no. 1 (2023): 59–66. http://dx.doi.org/10.30598/jlpvol2iss1pp59-66.

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This research was conducted to determine growth patterns and gonadal maturity levels, samples were taken randomly when the fishermen unloaded the fish from the boat. The results showed that skipjack tuna (Katsuwonus pelamis) obtained a growth coefficient (K) of 1.85 per year with an asymptotic length of 75.90 cm, t0 -0.06501 years with T max maximum age = 3/K+t0 of 1 .5 years and an Rn value of 0.169. After plugging the growth value into the von Bertalanffy equation for skipjack tuna caught in the Banda seas of Maluku Province, the equation Lt=75.90{1-e-0.14(t+0.06501)} for skipjack tuna caugh

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Bagarello, Fabio, and Naomichi Hatano. "PT-symmetric graphene under a magnetic field." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 472, no. 2193 (2016): 20160365. http://dx.doi.org/10.1098/rspa.2016.0365.

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We propose a P T -symmetrically deformed version of the graphene tight-binding model under a magnetic field. We analyse the structure of the spectra and the eigenvectors of the Hamiltonians around the K and K ′ points, both in the P T -symmetric and P T -broken regions. In particular, we show that the presence of the deformation parameter V produces several interesting consequences, including the asymmetry of the zero-energy states of the Hamiltonians and the breakdown of the completeness of the eigenvector sets. We also discuss the biorthogonality of the eigenvectors, which turns out to be di

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Saint-Paul, M., C. Guttin, P. Lejay, O. Leynaud, and P. Monceau. "Elastic properties of the charge density wave system HoTe3." International Journal of Modern Physics B 32, no. 23 (2018): 1850249. http://dx.doi.org/10.1142/s0217979218502491.

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We present ultrasonic measurements on the rare earth tritelluride HoTe3 compound. Different anomalies are observed at the upper and lower charge density wave phase transition T[Formula: see text] = 284 K and T[Formula: see text] = 120 K. A striking T2 temperature dependence of the velocities of the longitudinal C[Formula: see text], C[Formula: see text] and shear C[Formula: see text] modes is observed in the ordered phase below the lower CDW phase transition T[Formula: see text]. Such a behavior is related to the temperature dependence of the CDW order parameter.

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Chen, Liang, and Yanfang Ma. "A New Modified Levenberg–Marquardt Method for Systems of Nonlinear Equations." Journal of Mathematics 2023 (February 10, 2023): 1–13. http://dx.doi.org/10.1155/2023/6043780.

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Taking a new choice of the LM parameter λ k = μ k J k T F k δ with δ ∈ 0,2 , we give a new modified Levenberg–Marquardt method. Under the error bound condition c dist w , S ≤ J w T F w which is weaker than the nonsingular of Jacobian J w , we present that the new Levenberg–Marquardt method has at least superlinear convergence when δ ∈ 0,1 and quadratic convergence when δ ∈ 1,2 , respectively, which indicates that our new Levenberg–Marquardt method is performed for the systems of nonlinear equations. Also, numerical experiments indicate its efficiency on a set of systems of nonlinear equations.

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