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Journal articles on the topic 'Skew of an axe'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Dinh, Hai Q., Bac T. Nguyen, and Songsak Sriboonchitta. "Skew Constacyclic Codes over Finite Fields and Finite Chain Rings." Mathematical Problems in Engineering 2016 (2016): 1–17. http://dx.doi.org/10.1155/2016/3965789.

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This paper overviews the study of skewΘ-λ-constacyclic codes over finite fields and finite commutative chain rings. The structure of skewΘ-λ-constacyclic codes and their duals are provided. Among other results, we also consider the Euclidean and Hermitian dual codes of skewΘ-cyclic and skewΘ-negacyclic codes over finite chain rings in general and overFpm+uFpmin particular. Moreover, general decoding procedure for decoding skew BCH codes with designed distance and an algorithm for decoding skew BCH codes are discussed.

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2

Lu, Jennifer, and Steven L. Salzberg. "SkewIT: The Skew Index Test for large-scale GC Skew analysis of bacterial genomes." PLOS Computational Biology 16, no. 12 (2020): e1008439. http://dx.doi.org/10.1371/journal.pcbi.1008439.

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GC skew is a phenomenon observed in many bacterial genomes, wherein the two replication strands of the same chromosome contain different proportions of guanine and cytosine nucleotides. Here we demonstrate that this phenomenon, which was first discovered in the mid-1990s, can be used today as an analysis tool for the 15,000+ complete bacterial genomes in NCBI’s Refseq library. In order to analyze all 15,000+ genomes, we introduce a new method, SkewIT (Skew Index Test), that calculates a single metric representing the degree of GC skew for a genome. Using this metric, we demonstrate how GC skew

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3

Martínez-Flórez, Guillermo, Carlos Barrera-Causil, and Fernando Marmolejo-Ramos. "The Exponential-Centred Skew-Normal Distribution." Symmetry 12, no. 7 (2020): 1140. http://dx.doi.org/10.3390/sym12071140.

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Data from some research fields tend to exhibit a positive skew. For example, in experimental psychology, reaction times (RTs) are characterised as being positively skewed. However, it is not unlikely that RTs can take a normal or, even, a negative shape. While the Ex-Gaussian distribution is suitable to model positively skewed data, it cannot cope with negatively skewed data. This manuscript proposes a distribution that can deal with both negative and positive skews: the exponential-centred skew-normal (ECSN) distribution. The mathematical properties of the proposed distribution are reported,

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Koohnavard, R., and Saeid A. Borumand. "(Skew) Filters in Residuated Skew Lattices." Scientific Annals of Computer Science XXVIII, no. 1 (2018): 115–40. https://doi.org/10.7561/SACS.2018.1.115.

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In this paper, we show the relationship between (skew) deductive system and (skew) filter in residuated skew lattices. It is shown that if a residuated skew lattice is conormal, then any skew deductive system is a skew filter under a condition and deductive system and skew deductive system are equivalent under some conditions too. It is investigated that in branchwise residuated skew lattice, filter, deductive system and skew deductive system are equivalent. We define some types of prime (skew) filters in residuated skew lattices and show the relationship between prime (skew) filters and resid

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Nugroho, Didit Budi, Agus Priyono, and Bambang Susanto. "SKEW NORMAL AND SKEW STUDENT-T DISTRIBUTIONS ON GARCH(1,1) MODEL." MEDIA STATISTIKA 14, no. 1 (2021): 21–32. http://dx.doi.org/10.14710/medstat.14.1.21-32.

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The Generalized AutoRegressive Conditional Heteroskedasticity (GARCH) type models have become important tools in financial application since their ability to estimate the volatility of financial time series data. In the empirical financial literature, the presence of skewness and heavy-tails have impacts on how well the GARCH-type models able to capture the financial market volatility sufficiently. This study estimates the volatility of financial asset returns based on the GARCH(1,1) model assuming Skew Normal and Skew Student-t distributions for the returns errors. The models are applied to d

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6

Yang, Kuojun, Jiali Shi, Shulin Tian, Wuhuang Huang, and Peng Ye. "Timing Skew Calibration Method for TIADC-Based 20 GSPS Digital Storage Oscilloscope." Journal of Circuits, Systems and Computers 25, no. 02 (2015): 1650007. http://dx.doi.org/10.1142/s0218126616500079.

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Time-interleaved technique is widely used to increase the sampling rate of analog-to-digital converter (ADC). However, the channel mismatches degrade the performance of time-interleaved ADC (TIADC). When input signal frequency is very high, timing skews have significant effect on distortion. Therefore, a new timing skew calibration method is proposed in this paper. This method is based on the truth that timing skews are related to the product of the outputs of sub-ADCs. After timing skews are estimated, the digital controlled delay elements (DCDE) in ADC and phase locked loop (PLL) are utilize

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7

Apoorva, Reddy Proddutoori. "Dynamic Power Suppression with SoC Clock-Skew Resonance." European Journal of Advances in Engineering and Technology 10, no. 5 (2023): 84–87. https://doi.org/10.5281/zenodo.12755739.

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The issue of assembly the skew imperative in clock trees gets to be much difficult as the IC plan worldview has been moving to different control supply mode plan, in which the clock skew changes powerfully concurring to the voltage levels of the connected control modes amid the execution. Clock slant minimization is a significant subject in the plan of simultaneous consecutive circuit. As the cycle innovation scaling, the impact of cycle/voltage/temperature (PVT) minor departure from clock slant has turned into a serious concern. In this paper, we propose a self-changing component that can pow

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8

Li, Wei, Douglas R. Schmitt, and Xiwei Chen. "Accounting for pressure-dependent ultrasonic beam skew in transversely isotropic rocks: combining modelling and measurement of anisotropic wave speeds." Geophysical Journal International 221, no. 1 (2020): 231–50. http://dx.doi.org/10.1093/gji/ggz580.

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SUMMARY The intrinsic anisotropy of rock influences the paths of propagating seismic waves and indicates mineralogical texture and strains; and as such it is important that laboratory measurements of such properties be fully understood. Usually, when studying anisotropy, ultrasonic wave speeds are measured in a variety of strategic directions and, subsequently transformed to the dynamic elastic moduli using symmetry-appropriate formula. For transversely isotropic rocks the moduli are ideally found by measuring wave speeds in directions vertical, parallel and oblique to the foliation or bedding

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9

Saeid, Arsham Borumand, and Roghayeh Koohnavard. "On residuated skew lattices." Analele Universitatii "Ovidius" Constanta - Seria Matematica 27, no. 1 (2019): 245–68. http://dx.doi.org/10.2478/auom-2019-0013.

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Abstract In this paper, we define residuated skew lattice as non-commutative generalization of residuated lattice and investigate its properties. We show that Green’s relation 𝔻 is a congruence relation on residuated skew lattice and its quotient algebra is a residuated lattice. Deductive system and skew deductive system in residuated skew lattices are defined and relationships between them are given and proved. We define branchwise residuated skew lattice and show that a conormal distributive residuated skew lattice is equivalent with a branchwise residuated skew lattice under a condition.

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10

Koohnavard, R., and A. Borumand Saeid. "States on Residuated Skew Lattices." New Mathematics and Natural Computation 17, no. 02 (2021): 481–503. http://dx.doi.org/10.1142/s1793005721500241.

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In this paper, we introduce the notion of states and state operators on residuated skew lattices and investigate some related properties of them. The relationships between state operators and states on residuated skew lattices are discussed. We prove that every Bosbach state on a residuated skew lattice is a Riecan state and with an example we show that there is a Riecan state on a residuated skew lattice which is not a Bosbach state. Also, some conditions are given for a Riecan state on residuated skew lattice to be a Bosbach state. We present different types of state residuated skew lattices

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11

Frerking, Matthew, Salvador Borges, and Martin Wilson. "Are Some Minis Multiquantal?" Journal of Neurophysiology 78, no. 3 (1997): 1293–304. http://dx.doi.org/10.1152/jn.1997.78.3.1293.

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Frerking, Matthew, Salvador Borges, and Martin Wilson. Are some minis multiquantal? J. Neurophysiol. 78: 1293–1304, 1997. The amplitude distribution of miniature postsynaptic currents (minis) in many central neurons has a large variance and positive skew, but the sources of this variance and skew are unresolved. Recently it has been proposed that spontaneous Ca2+ influx into a presynaptic bouton with multiple release sites could cause spontaneous multiquantal minis by synchronizing release at all sites in the bouton, accounting for both the large variance and skew of the mini distribution. We

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12

Asili, Sahar, Sadegh Rezaei, and Lotfollah Najjar. "Using Skew-Logistic Probability Density Function as a Model for Age-Specific Fertility Rate Pattern." BioMed Research International 2014 (2014): 1–5. http://dx.doi.org/10.1155/2014/790294.

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Fertility rate is one of the most important global indexes. Past researchers found models which fit to age-specific fertility rates. For example, mixture probability density functions have been proposed for situations with bi-modal fertility patterns. This model is less useful for unimodal age-specific fertility rate patterns, so a model based on skew-symmetric (skew-normal) pdf was proposed by Mazzuco and Scarpa (2011) which was flexible for unimodal and bimodal fertility patterns. In this paper, we introduce skew-logistic probability density function as a better model: its residuals are less

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13

Polimenis, Vassilis, and Ioannis Papantonis. "Jointly estimating jump betas." Journal of Risk Finance 15, no. 2 (2014): 131–48. http://dx.doi.org/10.1108/jrf-07-2013-0052.

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Purpose – This paper aims to enhance a co-skew-based risk measurement methodology initially introduced in Polimenis, by extending it for the joint estimation of the jump betas for two stocks. Design/methodology/approach – The authors introduce the possibility of idiosyncratic jumps and analyze the robustness of the estimated sensitivities when two stocks are jointly fit to the same set of latent jump factors. When individual stock skews substantially differ from those of the market, the requirement that the individual skew is exactly matched is placing a strain on the single stock estimation s

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14

Yao, Jin-jiang, and Zhao-lin Jiang. "The Determinants, Inverses, Norm, and Spread of Skew Circulant Type Matrices Involving Any Continuous Lucas Numbers." Journal of Applied Mathematics 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/239693.

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We consider the skew circulant and skew left circulant matrices with any continuous Lucas numbers. Firstly, we discuss the invertibility of the skew circulant matrices and present the determinant and the inverse matrices by constructing the transformation matrices. Furthermore, the invertibility of the skew left circulant matrices is also discussed. We obtain the determinants and the inverse matrices of the skew left circulant matrices by utilizing the relationship between skew left circulant matrices and skew circulant matrix, respectively. Finally, the four kinds of norms and bounds for the

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15

Diaz Arancibia, Mauricio, Lucas Rugar, and Pinar Okumus. "Role of Skew on Bridge Performance." Transportation Research Record: Journal of the Transportation Research Board 2674, no. 5 (2020): 282–92. http://dx.doi.org/10.1177/0361198120914617.

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Gravity load paths of high-skew bridges differ from the ones with no skew. High skew can also lead to stresses or displacements that adversely affect service performance. This paper demonstrates the effects of skew on bridges through finite element analyses, bridge inspections, and statistical analyses. Five deck-girder type bridges with and without skew were inspected. A database of more than 1,400 deck-girder type bridges was analyzed to seek relationships between skew and National Bridge Inventory (NBI) ratings. Practices of Departments of Transportation (DOT) were compared with each other

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16

Roy, Satya Sapath, Jamshaid Sawab, Tianmin Zhou, Y. L. Mo, and Thomas T. C. Hsu. "Performance of Skew Reinforcing in Inverted-T Bridge Caps." Transportation Research Record: Journal of the Transportation Research Board 2672, no. 41 (2018): 65–74. http://dx.doi.org/10.1177/0361198118756892.

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Inverted-T bridge caps (ITBCs) have been widely used in most bridges in Texas in recent years. In some typical cases, the bridge caps are skew when two roads are not aligned in a perpendicular manner. The traditional method of flaring the transverse reinforcement out in skew ITBCs introduces significant complexity in design and during construction. An alternative is to provide skew reinforcing which will substantially reduce the design complexities and construction period. In this paper, three ITBC specimens were subjected to shear action to evaluate and compare the performance of ITBCs with t

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17

Xu, Xiang Feng, Feng Zhang, and Guang Zhi Qi. "The Meticulous Analysis of Skew Beam Based on the Space Skew Beam Element Method." Applied Mechanics and Materials 578-579 (July 2014): 220–24. http://dx.doi.org/10.4028/www.scientific.net/amm.578-579.220.

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When a skew bridge is analyzed, it is difficult to treat skew boundary conditions with general space beam element in single beam calculation of skew beam bridge. The stiffness of skew bridge cannot be simulated efficiently. In order to improve the accuracy of skew bridge, the stiffness matrix of the space skew beam element is derived based on the principle of minimum potential in this paper, this element is suitable for single beam of skew bridge and grillage method. A corresponding program is completed by Visual C++, the calculated results of different finite element models are compared, so t

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18

HABIBI, MOHAMMAD, and RAOUFEH MANAVIYAT. "A GENERALIZATION OF NIL-ARMENDARIZ RINGS." Journal of Algebra and Its Applications 12, no. 06 (2013): 1350001. http://dx.doi.org/10.1142/s0219498813500011.

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Let R be a ring, M a monoid and ω : M → End (R) a monoid homomorphism. The skew monoid ring R * M is a common generalization of polynomial rings, skew polynomial rings, (skew) Laurent polynomial rings and monoid rings. In the current work, we study the nil skew M-Armendariz condition on R, a generalization of the standard nil-Armendariz condition from polynomials to skew monoid rings. We resolve the structure of nil skew M-Armendariz rings and obtain various necessary or sufficient conditions for a ring to be nil skew M-Armendariz, unifying and generalizing a number of known nil Armendariz-lik

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19

Nikmehr, Mohammad, Ali Nejati та Mansoureh Deldar. "On weak α-skew McCoy rings". Publications de l'Institut Math?matique (Belgrade) 95, № 109 (2014): 221–28. http://dx.doi.org/10.2298/pim1409221n.

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Let ? be an endomorphism of a ring R. We introduce the notion of weak ?-skew McCoy rings which are a generalization of the ?-skew McCoy rings and the weak McCo rings. Some properties of this generalization are established, and connections of properties of a weak ?-skew McCoy ring R with n ? n upper triangular Tn(R) are investigated. We study relationship between the weak skew McCoy property of a ring R and its polynomial ring, R[x]. Among applications, we show a number of interesting properties of a weak ?-skew McCoy ring R such as weak skew McCoy property in a ring R.

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20

Jiang, Zhaolin, Tingting Xu, and Fuliang Lu. "Isomorphic Operators and Functional Equations for the Skew-Circulant Algebra." Abstract and Applied Analysis 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/418194.

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The skew-circulant matrix has been used in solving ordinary differential equations. We prove that the set of skew-circulants with complex entries has an idempotent basis. On that basis, a skew-cyclic group of automorphisms and functional equations on the skew-circulant algebra is introduced. And different operators on linear vector space that are isomorphic to the algebra ofn×ncomplex skew-circulant matrices are displayed in this paper.

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21

Özen, Mehmet, N. Tuğba Özzaim та Halit İnce. "Skew quasi cyclic codes over 𝔽q + v𝔽q". Journal of Algebra and Its Applications 18, № 04 (2019): 1950077. http://dx.doi.org/10.1142/s0219498819500774.

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In this work, skew quasi cyclic codes over [Formula: see text], where [Formula: see text] are considered. The generating set for one generator skew quasi cyclic codes over [Formula: see text] is also determined. We discuss a sufficient condition for one generator skew quasi cyclic codes to be free. Furthermore, a BCH type bound is given for free one generator skew quasi cyclic codes. We investigate the dual of skew quasi cyclic codes over [Formula: see text]. We give a necessary and sufficient condition for skew cyclic codes over [Formula: see text] to contain its dual. Moreover, we construct

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22

Naik, Pavankumar, and K. Gourav. "Analysis of Skew Bridge-Slab Under IRC Vehicle Loading." IOP Conference Series: Earth and Environmental Science 1130, no. 1 (2023): 012034. http://dx.doi.org/10.1088/1755-1315/1130/1/012034.

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Abstract Skew slab bridges are essential in mountainous areas because topographic restrictions prevented changing the alignment of the road also, crossings of roads and railroads. In simple supported bridges, the effect of skew may typically be ignored up to 15 degrees of skew, and the bridge can be constructed as a right-angled bridge. The behaviour of skew slab bridges more than 15 degrees is complicated hence the study on the behaviour of skew-bridge slab under IRC vehicle loading is carried out. About 70 different deck slab models are analyzed in STAAD Pro software with varying width from

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23

Mazurek, Ryszard. "Archimedean domains of skew generalized power series." Forum Mathematicum 32, no. 4 (2020): 1075–93. http://dx.doi.org/10.1515/forum-2019-0187.

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AbstractA skew generalized power series ring {R[[S,\omega,\leq]]} consists of all functions from a strictly ordered monoid {(S,\leq)} to a ring R whose support is artinian and narrow, with pointwise addition, and with multiplication given by convolution twisted by an action ω of the monoid S on the ring R. Special cases of this ring construction are skew polynomial rings, skew Laurent polynomial rings, skew power series rings, skew Laurent series rings, skew monoid rings, skew group rings, skew Mal’cev–Neumann series rings, the “unskewed” versions of all of these, and generalized power series

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24

Fadhil, Ghaidak A. "EFFECTS OF SKEW ANGLE ON BENDING MOMENT'S DISTRIBUTION IN THE SKEW BRIDGE DECK." Journal of Engineering 14, no. 04 (2024): 3245–56. http://dx.doi.org/10.31026/j.eng.2008.04.28.

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In this paper the effect of skew angle on reinforced concrete skew bridges deck is presented by using the grillage analogy. The actual decking system of the bridge is represented by an equivalent grillage of beams. A span 24 m of simply supported right bridge deck with I-section prestressed concrete girders is taken as the case study to obtain the values of the bending moment's distribution for the two types of skewness (types 1 and 2) and the results of skew types are compared against the moments of the right deck span of the bridge. In the skew type 1 the deck span is increased as skew angle

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25

CROW, KATHI. "SIMPLE REGULAR SKEW GROUP RINGS." Journal of Algebra and Its Applications 04, no. 02 (2005): 127–37. http://dx.doi.org/10.1142/s0219498805000909.

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Given a group G acting on a ring R via α:G → Aut (R), one can construct the skew group ring R*αG. Skew group rings have been studied in depth, but necessary and sufficient conditions for the simplicity of a general skew group ring are not known. In this paper, such conditions are given for certain types of skew group rings, with an emphasis on Von Neumann regular skew group rings. Next the results of the first section are used to construct a class of simple skew group rings. In particular, we obtain a more efficient proof of the simplicity of a certain ring constructed by J. Trlifaj.

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26

Yu, Xueying, and Chuancun Yin. "Some results on multivariate measures of elliptical and skew-elliptical distributions: higher-order moments, skewness and kurtosis." AIMS Mathematics 8, no. 3 (2023): 7346–76. http://dx.doi.org/10.3934/math.2023370.

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<abstract><p>The kurtosis and skewness of distributions are important measures that can describe the shape of a distribution, and there have been many results for symmetric distributions, but there are still many difficulties and challenges in the characterization of skew distributions. Based on the results of Mardia's and Song's kurtosis measures of elliptical distributions obtained by Zografos <sup>[<xref ref-type="bibr" rid="b1">1</xref>]</sup>, we generalize the results and study some measures for elliptical and skew-elliptical distributions. We also der

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ALHEVAZ, A., and A. MOUSSAVI. "ANNIHILATOR CONDITIONS IN MATRIX AND SKEW POLYNOMIAL RINGS." Journal of Algebra and Its Applications 11, no. 04 (2012): 1250079. http://dx.doi.org/10.1142/s021949881250079x.

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Let R be a ring with an endomorphism α and α-derivation δ. By [A. R. Nasr-Isfahani and A. Moussavi, Ore extensions of skew Armendariz rings, Comm. Algebra 36(2) (2008) 508–522], a ring R is called a skew Armendariz ring, if for polynomials f(x) = a0 + a1 x + ⋯ + anxn, g(x) = b0+b1x + ⋯ + bmxm in R[x; α, δ], f(x)g(x) = 0 implies a0bj = 0 for each 0 ≤ j ≤ m. In this paper, radicals of the skew polynomial ring R[x; α, δ], in terms of a skew Armendariz ring R, is determined. We prove that several properties transfer between R and R[x; α, δ], in case R is an α-compatible skew Armendariz ring. We al

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KURTAS, SHANNON M., and BARIS TASKIN. "STATISTICAL TIMING ANALYSIS OF THE CLOCK PERIOD IMPROVEMENT THROUGH CLOCK SKEW SCHEDULING." Journal of Circuits, Systems and Computers 20, no. 05 (2011): 881–98. http://dx.doi.org/10.1142/s0218126611007669.

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Statistical static timing analysis (SSTA) methods, which model process variations statistically as probability distribution function rather than deterministically, have been thoroughly performed on traditional zero clock skew circuits. In the traditional zero clock skew circuits, the synchronizing clock signal is designed to arrive in phase with respect to each register. However, designers will often schedule the clock skew to different registers in order to decrease the minimum clock period of the entire circuit. Clock skew scheduling imparts very different timing constraints that are based,

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Zhu, Lei, and Weiwei Xu. "Backward Error Analysis for an Eigenproblem Involving Two Classes of Matrices." East Asian Journal on Applied Mathematics 4, no. 4 (2014): 329–44. http://dx.doi.org/10.4208/eajam.090614.031014a.

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AbstractWe consider backward errors for an eigenproblem of a class of symmetric generalised centrosymmetric matrices and skew-symmetric generalised skew-centrosymmetric matrices, which are extensions of symmetric centrosymmetric and skew-symmetric skew-centrosymmetric matrices. Explicit formulae are presented for the computable backward errors for approximate eigenpairs of these two kinds of structured matrices. Numerical examples illustrate our results.

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Loviknes, Karina, Zeinab Jeddi, Lars Ottemöller, and Thibaut Barreyre. "When Clocks Are Not Working: OBS Time Correction." Seismological Research Letters 91, no. 4 (2020): 2247–58. http://dx.doi.org/10.1785/0220190342.

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Abstract Ocean-bottom seismographs (OBSs) are used to obtain seismic recordings offshore and are an increasingly important tool for investigating the globe. However, because OBS data cannot be time stamped using Global Positioning System (GPS) during deployment, correction for drift of the internal clock is required. This time drift is typically derived by synchronizing the clock before and after deployment. Linear correction is then applied using the timing deviation between GPS and the instrument’s internal clock at recovery, that is, the skew measurement. If synchronization measurements are

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Nakhaei Rad, Najmeh, Mahdi Salehi, Yaser Mehrali, and Ding-Geng Chen. "Skew-Symmetric Generalized Normal and Generalized t Distributions." Axioms 13, no. 11 (2024): 782. http://dx.doi.org/10.3390/axioms13110782.

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In this paper, we introduce the skew-symmetric generalized normal and the skew-symmetric generalized t distributions, which are skewed extensions of symmetric special cases of generalized skew-normal and generalized skew-t distributions, respectively. We derive key distributional properties for these new distributions, including a recurrence relation and an explicit form for the cumulative distribution function (cdf) of the skew-symmetric generalized t distribution. Numerical examples including a simulation study and a real data analysis are presented to illustrate the practical applicability

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Ghaderinezhad, Fatemeh, Christophe Ley, and Nicola Loperfido. "Bayesian Inference for Skew-Symmetric Distributions." Symmetry 12, no. 4 (2020): 491. http://dx.doi.org/10.3390/sym12040491.

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Skew-symmetric distributions are a popular family of flexible distributions that conveniently model non-normal features such as skewness, kurtosis and multimodality. Unfortunately, their frequentist inference poses several difficulties, which may be adequately addressed by means of a Bayesian approach. This paper reviews the main prior distributions proposed for the parameters of skew-symmetric distributions, with special emphasis on the skew-normal and the skew-t distributions which are the most prominent skew-symmetric models. The paper focuses on the univariate case in the absence of covari

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Ge, Xiao Yu, Yong Xiao, and Ren Chun Guo. "Study on Temperature Induced Head Skew Error for Hard Disk Drivers." Advanced Materials Research 468-471 (February 2012): 1195–98. http://dx.doi.org/10.4028/www.scientific.net/amr.468-471.1195.

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When the disk is assembled into the hard disk base, it will introduce additional head position error and timing error comparing with in-situ disk writing technology. Head skew calibration is one of the key processes to ensure high servo performance during head switching seeks. The head skew has AC and DC components. In this paper, principle of DC head skew error is formulated, and temperature characteristics of the DC head skew error are analyzed. Then a compensation method for the temperature induced DC head skew error is proposed, so that temperature induced head skew error for hard disk dri

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Lu, Ming Qi, Xiang Zong Cao, and Shao Qin Guo. "Translation-Torsion Coupling Analysis on Skew Bridge." Applied Mechanics and Materials 178-181 (May 2012): 2492–96. http://dx.doi.org/10.4028/www.scientific.net/amm.178-181.2492.

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In the earthquakes, the skew bridge is subjected to bending shear and torsion at the same time, and at present, the studies on it are inadequate at home and abroad. In this paper, the numerical analysis model of the skew bridge was simplified, the effects what the three parameters (including stiffness ratio, skew angle, and eccentricity) make on the dynamic characteristics of skew bridge were obtained by the eigenvalue analysis, and especially, the effects on the translation-torsion coupling vibration of skew bridge and its mechanism were focused on. The results show that the three parameters

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Wang, Lei, Xinyun Liu, Ting Li, and Jiandong Zhu. "Skew-symmetric games and symmetric-based decomposition of finite games." Mathematical Modelling and Control 2, no. 4 (2022): 257–67. http://dx.doi.org/10.3934/mmc.2022024.

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<abstract><p>In this paper, skew-symmetric games and a symmetric-based decomposition of finite games are investigated. First, necessary and sufficient conditions for testing skew-symmetric games are obtained by the semi-tensor product method based on adjacent transpositions. By using the obtained conditions for skew-symmetric games, a basis of the skew-symmetric game subspace is constructed. Then, the discriminant equations for a skew-symmetric game with the minimum number are derived. Furthermore, based on the basis of the skew-symmetric game subspace and that of the symmetric gam

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van Hemert, Formijn, Maarten Jebbink, Andries van der Ark, Frits Scholer, and Ben Berkhout. "Euclidean Distance Analysis Enables Nucleotide Skew Analysis in Viral Genomes." Computational and Mathematical Methods in Medicine 2018 (October 30, 2018): 1–9. http://dx.doi.org/10.1155/2018/6490647.

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Nucleotide skew analysis is a versatile method to study the nucleotide composition of RNA/DNA molecules, in particular to reveal characteristic sequence signatures. For instance, skew analysis of the nucleotide bias of several viral RNA genomes indicated that it is enriched in the unpaired, single-stranded genome regions, thus creating an even more striking virus-specific signature. The comparison of skew graphs for many virus isolates or families is difficult, time-consuming, and nonquantitative. Here, we present a procedure for a more simple identification of similarities and dissimilarities

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37

Ashraf, Mohammad, Amal S. Alali, Mohd Asim та Ghulam Mohammad. "(β,γ)-Skew QC Codes with Derivation over a Semi-Local Ring". Symmetry 15, № 1 (2023): 225. http://dx.doi.org/10.3390/sym15010225.

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In this article, we consider a semi-local ring S=Fq+uFq, where u2=u, q=ps and p is a prime number. We define a multiplication yb=β(b)y+γ(b), where β is an automorphism and γ is a β-derivation on S so that S[y;β,γ] becomes a non-commutative ring which is known as skew polynomial ring. We give the characterization of S[y;β,γ] and obtain the most striking results that are better than previous findings. We also determine the structural properties of 1-generator skew cyclic and skew-quasi cyclic codes. Further, We demonstrate remarkable results of the above-mentioned codes over S. Finally, we find

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38

Dertli, Abdullah, Yasemin Cengellenmis, and Senol Eren. "On the linear codes over the ring Rp." Discrete Mathematics, Algorithms and Applications 08, no. 02 (2016): 1650036. http://dx.doi.org/10.1142/s1793830916500361.

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Some results are generalized on linear codes over [Formula: see text] in [15] to the ring [Formula: see text], where [Formula: see text] is an odd prime number. The Gray images of cyclic and quasi-cyclic codes over [Formula: see text] are obtained. The parameters of quantum error correcting codes are obtained from negacyclic codes over [Formula: see text]. A nontrivial automorphism [Formula: see text] on the ring [Formula: see text] is determined. By using this, the skew cyclic, skew quasi-cyclic, skew constacyclic codes over [Formula: see text] are introduced. The number of distinct skew cycl

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39

Siddiqi, M. D., A. Haseeb, and M. Ahmad. "Skew semi-invariant submanifolds of generalized quasi-Sasakian manifolds." Carpathian Mathematical Publications 9, no. 2 (2018): 188–97. http://dx.doi.org/10.15330/cmp.9.2.188-197.

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In the present paper, we study a new class of submanifolds of a generalized Quasi-Sasakian manifold, called skew semi-invariant submanifold. We obtain integrability conditions of the distributions on a skew semi-invariant submanifold and also find the condition for a skew semi-invariant submanifold of a generalized Quasi-Sasakian manifold to be mixed totally geodesic. Also it is shown that a skew semi-invariant submanifold of a generalized Quasi-Sasakian manifold will be anti-invariant if and only if $A_{\xi}=0$; and the submanifold will be skew semi-invariant submanifold if $\nabla w=0$. The

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Buckle, I. G., and Weng-Onn Lee. "Analysis of skewed multibeam bridges by the transfer matrix method." Canadian Journal of Civil Engineering 12, no. 1 (1985): 24–35. http://dx.doi.org/10.1139/l85-003.

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The analysis of multibeam bridge decks is seriously complicated by the effect of skew. Conventional methods invoke grillage solutions, which have inherent difficulties. This paper proposes an extension of the transfer matrix solution for right decks to include the effects of skew without detracting from the simplicity of the method. Both the flexural and torsional flexibility coefficients need to be modified for the skew support conditions and a new flexure–torsion coefficient is introduced to represent the cross-coupling that occurs between these flexibilities because of skew. The assumption

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41

Ali, Eltiyeb. "The Reflexive Condition on Skew Monoid Rings." European Journal of Pure and Applied Mathematics 16, no. 3 (2023): 1878–93. http://dx.doi.org/10.29020/nybg.ejpam.v16i3.4827.

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This paper is devoted to introducing and studying two concepts, σ-skew strongly M-reflexive and σ-skew strongly M-nil-reflexive on monoid rings, which are generalizations of strongly M-reflexive and M-compatible. The paper covers the basic properties of skew monoid rings of the form R∗M. It is shown that if R is a left AP P (quasi Armendariz, semiprime rings, respectively), then R is σ-skew strongly M-reflexive. Moreover, if R is a NI-ring and M is a u.p-monoid, then R is σ-skew strongly M-nil-reflexive. Additionally, under some necessary and sufficient conditions, a skew monoid ring R ∗ M is

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42

Chō, Muneo, Eungil Ko, and Ji Lee. "Skew m-complex symmetric operators." Filomat 33, no. 10 (2019): 2975–83. http://dx.doi.org/10.2298/fil1910975c.

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In this paper we study skew m-complex symmetric operators. In particular, we show that if T ? L(H) is a skew m-complex symmetric operator with a conjugation C, then eitT , e-itT , and e-itT* are (m,C)-isometric for every t ? R. Moreover, we examine some conditions for skew m-complex symmetric operators to be skew (m-1)-complex symmetric.

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43

H. M. Ali, Abdelhameed, and Anwar Adam Ahmed. "Effect of Skew Angle on Bridge Superstructures." FES Journal of Engineering Sciences 9, no. 1 (2021): 43–48. http://dx.doi.org/10.52981/fjes.v9i1.656.

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In this paper, the effect of skew angle on reinforced concrete skew bridge decks is presented by using the grillage analogy. The actual deck system of the bridge is represented by an equivalent grillage of longitudinal and transverse beams. A span 26m of simply supported bridge deck is taken as the case study to obtain the values of the bending moment' s distribution versus span length for the one type of skewness and the results are compared against the moments of the right deck span of the bridge. The analysis results were based (BS5400) dead and live loads using Structural Analysis program

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Si, Xuesong, and Chuanze Niu. "On skew cyclic codes over $ M_{2}(\mathbb{F}_{2}) $." AIMS Mathematics 8, no. 10 (2023): 24434–45. http://dx.doi.org/10.3934/math.20231246.

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<abstract><p>The algebraic structure of skew cyclic codes over $ M_{2} $($ \mathbb{F}_2 $), using the $ \mathbb{F}_4 $-cyclic algebra, is studied in this work. We determine that a skew cyclic code with a polynomial of minimum degree $ d(x) $ is a free code generated by $ d(x) $. According to our findings, skew cyclic codes of odd and even lengths are cyclic and $ 2 $-quasi-cyclic over $ M_{2}(\mathbb{F}_{2}) $, respectively. We provide the self-dual skew condition of Hermitian dual codes of skew cyclic codes. The generator polynomials of Euclidean dual codes are obtained. Furthermo

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Liu, Liang. "Research on Skew Coefficient for Stresses of Skewly Supported Three-Span Continuous Box Girders." Applied Mechanics and Materials 587-589 (July 2014): 1483–87. http://dx.doi.org/10.4028/www.scientific.net/amm.587-589.1483.

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Skewly supported continuous box girders have special mechanical properties compared with common continuous box girders. Skew coefficient for stress of skewly supported three-span continuous box girder is introduced to reflect the decrease degree of the normal stresses at the cross section of the middle span of the box girder. The finite element models of the skewly supported three-span continuous box girders with different skew angles are established by applying the SHELL63 shell element in software ANSYS. The variation of the skew coefficient for stress at different calculation points of midd

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Liu, Xueshan, Wei Guo, Jianzhong Li, and Hua Zhang. "Seismic Study of Skew Bridge Supported on Laminated-Rubber Bearings." Advances in Civil Engineering 2020 (November 18, 2020): 1–17. http://dx.doi.org/10.1155/2020/8899693.

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Skew bridges consisting of simply supported girders, continuous decks, and laminated-rubber bearings are widely used in western China; however, they are highly vulnerable to strong earthquakes. To investigate the seismic performance of skew bridges considering the sliding behavior of laminated-rubber bearings, the Duxiufeng Bridge located in Sichuan, China, was used as a prototype bridge. This bridge is a skew bridge that suffered seismic damage during the 2008 Wenchuan earthquake. The possible seismic response of this skew bridge under the Wenchuan earthquake was simulated, and the postearthq

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47

Takahashi, Kenshiro, and Chris Gargan-Shingles. "Wake-adapted ducted propeller for full-scale generic underwater vehicle: parametric study on blade skew for unsteady propeller thrust." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 265, no. 2 (2023): 5545–52. http://dx.doi.org/10.3397/in_2022_0818.

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A parametric study of blade skew for unsteady propeller thrust in the wake of an underwater vehicle (BB2) is presented. Unsteady thrust forces transmit via the propeller shaft and produce undesirable noise and vibration, particularly at frequencies corresponding to multiples of the blade number. The effectiveness of blade skew in reducing noise and vibration has been reported in previous studies, though not for underwater vehicles. The amplitudes of the dominant harmonics of the unsteady propeller thrust are determined using a Fourier series. The balanced skew reduces the dominant fifth harmon

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48

Zhu, Xiaonan, Baokun Li, Tonghui Wang, and Arjun K. Gupta. "Sampling distributions of skew normal populations associated with closed skew normal distributions." Random Operators and Stochastic Equations 27, no. 2 (2019): 75–87. http://dx.doi.org/10.1515/rose-2018-2007.

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Abstract The sample mean and sample variance are commonly used statistics in our study. In this paper, distributions of the sample mean and sample variance from a skew normal population are derived under closed skew normal (CSN) settings. The noncentral closed skew chi-square distribution is defined, and the distribution of quadratic forms is discussed. Our results generalize the corresponding results given under skew normal settings. Several examples are given for illustration of our results.

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Ragab, Ahmed, Yang Liu, Kangmin Hu, Patrick Chiang, and Samuel Palermo. "Receiver Jitter Tracking Characteristics in High-Speed Source Synchronous Links." Journal of Electrical and Computer Engineering 2011 (2011): 1–15. http://dx.doi.org/10.1155/2011/982314.

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High-speed links which employ source synchronous clocking architectures have the ability to track correlated jitter between clock and data channels up to high frequencies. However, system timing margins are degraded by channel skew between clock and data signals and high-frequency loss. This paper describes how these key channel effects impact the jitter performance and influence the clocking architecture of high-speed source synchronous links. Tradeoffs in complexity and jitter tracking performance of common per-channel de-skew circuits are discussed, along with how band-pass filtering can be

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50

Paykan, K., and A. Moussavi. "Quasi-Armendariz generalized power series rings." Journal of Algebra and Its Applications 15, no. 05 (2016): 1650086. http://dx.doi.org/10.1142/s0219498816500869.

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Let [Formula: see text] be a ring, [Formula: see text] a strictly ordered monoid and [Formula: see text] a monoid homomorphism. The skew generalized power series ring [Formula: see text] is a common generalization of (skew) polynomial rings, (skew) power series rings, (skew) Laurent polynomial rings, (skew) group rings, and Mal’cev–Neumann Laurent series rings. We initiate the study of the [Formula: see text]-quasi-Armendariz condition on [Formula: see text], a generalization of the standard quasi-Armendariz condition from polynomials to skew generalized power series. The class of quasi-Armend

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