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Journal articles on the topic 'Computer engineering, n.e.c'

Author: Grafiati

Published: 10 December 2022

Last updated: 31 July 2025

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1

Wang, A. T. "Finite-Simulation Error Bounds for Estimated K-Year Forces." Journal of Offshore Mechanics and Arctic Engineering 111, no. 4 (1989): 273–77. http://dx.doi.org/10.1115/1.3257095.

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Computer simulations have been used frequently to calculate design loads associated with a specific return period for offshore structures. However, two important questions persistently confront engineers who simulate load events on computers to estimate k-year forces: 1) How accurate is the estimated k-year force (say, 100-yr force) obtained through a computer simulation of n years (e.g., n = 1000) compared to that which would result from a much longer simulation? 2) When can we stop a computer simulation? Or how many simulation years are needed to reach a specified level of reliability for a

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2

Ohtani, H., and M. Hillert. "Calculation of VCN and TiCN phase diagrams." Calphad 17, no. 1 (1993): 93–99. http://dx.doi.org/10.1016/0364-5916(93)90037-c.

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3

Cai, Haoyuan, Qi Ye, and Dong-Ling Deng. "Sample complexity of learning parametric quantum circuits." Quantum Science and Technology 7, no. 2 (2022): 025014. http://dx.doi.org/10.1088/2058-9565/ac4f30.

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Abstract Quantum computers hold unprecedented potentials for machine learning applications. Here, we prove that physical quantum circuits are probably approximately correct learnable on a quantum computer via empirical risk minimization: to learn a parametric quantum circuit with at most n c gates and each gate acting on a constant number of qubits, the sample complexity is bounded by O ~ ( n c + 1 ) . In particular, we explicitly construct a family of variational quantum circuits with O(n c+1) elementary gates arranged in a fixed pattern, which can represent all physical quantum circuits cons

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4

Kouba, R., K. Rayane, and M. Keddam. "Thermodynamic reassessment of Fe-N and Fe-N-C systems." Calphad 71 (December 2020): 102197. http://dx.doi.org/10.1016/j.calphad.2020.102197.

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5

Wang, Guoming. "Efficient quantum algorithms for analyzing large sparse electrical networks." Quantum Information and Computation 17, no. 11&12 (2017): 987–1026. http://dx.doi.org/10.26421/qic17.11-12-5.

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Analyzing large sparse electrical networks is a fundamental task in physics, electrical engineering and computer science. We propose two classes of quantum algorithms for this task. The first class is based on solving linear systems, and the second class is based on using quantum walks. These algorithms compute various electrical quantities, including voltages, currents, dissipated powers and effective resistances, in time poly(d, c,log(N), 1/λ, 1/e), where N is the number of vertices in the network, d is the maximum unweighted degree of the vertices, c is the ratio of largest to smallest edge

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Grujicic, M., L. Kaufman, and W. S. Owen. "The (V,Nb)(C,N) precipitate/austenite equilibrium in the Fe-C-N-V-Nb-Mn system." Calphad 10, no. 1 (1986): 37–47. http://dx.doi.org/10.1016/0364-5916(86)90008-8.

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7

Miki, Nobuyuki, and Oono Hideki. "A Study on Equivalent C/N Degradation of Digital Terrestrial Television Broadcasting and C/N of Carrier." Journal of the Institute of Image Information and Television Engineers 54, no. 1 (2000): 127–30. http://dx.doi.org/10.3169/itej.54.127.

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8

Glazoff, Michael V., Michael C. Gao, Laurent Capolungo, et al. "Concurrent Precipitation of Nb(C,N) and Metastable M23C6 in Alloy 347H at 700°C and 750°C: Computer Simulations and Comparison to Experiment." JOM 74, no. 4 (2022): 1444–52. http://dx.doi.org/10.1007/s11837-021-05140-9.

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Kapturkiewicz, Andrzej, and Anna Kamecka. "Luminescence properties of [Ir(C^N)2(N^N)]+ complexes: relations between DFT computation results and emission band-shape analysis data." RSC Advances 11, no. 47 (2021): 29308–22. http://dx.doi.org/10.1039/d1ra05430a.

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10

Heryana, Yayan Heryana. "Analysis of Orifice in Biodiesel Reactor with Hydrodynamic Cavitation System using Computational Fluid Dynamics." Jurnal Keteknikan Pertanian 10, no. 1 (2022): 85–94. http://dx.doi.org/10.19028/jtep.010.1.85-94.

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Reactor technology for the transesterification process of vegetable oils or animal fats with methanol has been widely developed to obtain biodiesel products that comply with standards but at the lowest cost. The hydrodynamic cavitation reactor with orifice type is a choice for this purpose. This research aims to determine the optimal orifice design from several orifice designs tested through CFD simulation. Computer simulations performed on orifices A, B, C and D using the Schnerr and Sauer models show that orifice C is optimal for cavitation at an absolute inlet pressure of 3x105 N/m2 with th

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11

Belmonte, Zachariah John Aviles, Carl Sebastian C. Cruz, Prince Adriel P. De Castro, Lexter A. Estoesta, Elijah John A. Mitra, and Pamela Eyre Victoria R Lira. "Factors Influencing Technopreneurial Intention among Undergraduate Engineering Students in the Philippines." Journal of Engineering Education Transformations 36, no. 1 (2022): 148–57. http://dx.doi.org/10.16920/jeet/2022/v36i1/22146.

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Abstract : In the Philippines, students exhibit a low interest in entrepreneurship despite numerous programs implemented and mandated by the government. The emergence of technopreneurship is now confronted by several issues, mainly in developing competent and versatile technopreneurs. Until now, there are inadequate studies related to technopreneurship specifically those dealing with technopreneurial intention among engineering students. This study aims to determine the factors associated with technopreneurial intention. Simple random sampling was used to collect necessary data from 200 underg

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12

Truhar, Ninoslav, and Maja Petrač. "Damping Optimization of Linear Vibrational Systems with a Singular Mass Matrix." Mathematics 10, no. 11 (2022): 1854. http://dx.doi.org/10.3390/math10111854.

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We present two novel results for small damped oscillations described by the vector differential equation Mx¨+Cx˙+Kx=0, where the mass matrix M can be singular, but standard deflation techniques cannot be applied. The first result is a novel formula for the solution X of the Lyapunov equation ATX+XA=−I, where A=A(v) is obtained from M,C(v)∈Rn×n, and K∈Rn×n, which are the so-called mass, damping, and stiffness matrices, respectively, and rank(M)=n−1. Here, C(v) is positive semidefinite with rank(C(v))=1. Using the obtained formula, we propose a very efficient way to compute the optimal damping m

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13

Dai, Tao, Liangzhi Cao, Qingming He, Hongchun Wu, and Wei Shen. "A Two-Way Neutronics/Thermal-Hydraulics Coupling Analysis Method for Fusion Blankets and Its Application to CFETR." Energies 13, no. 16 (2020): 4070. http://dx.doi.org/10.3390/en13164070.

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The China Fusion Engineering Test Reactor (CFETR) is a tokamak device to validate and demonstrate fusion engineering technology. In CFETR, the breeding blanket is a vital important component that is closely related to the performance and safety of the fusion reactor. Neutronics/thermal-hydraulics (N/TH) coupling effect is significant in the numerical analysis of the fission reactor. However, in the numerical analysis of the fusion reactor, the existing coupling code system mostly adopts the one-way coupling method. The ignorance of the two-way N/TH coupling effect would lead to inaccurate resu

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Nakano, Hisamatsu, Tomoki Abe, Amit Mehta, and Junji Yamauchi. "Compound Metacurl Antenna With C- and N-Type Metaatoms." IEEE Access 8 (2020): 51703–12. http://dx.doi.org/10.1109/access.2020.2980052.

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15

Wei, Wenjie, Weiwei Zhao, Gaoyang Liu, and Zhanmin Cao. "Thermodynamic description of the Ti–C–N–O system." Calphad 80 (March 2023): 102520. http://dx.doi.org/10.1016/j.calphad.2022.102520.

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16

XU, M. S., J. B. XU, and J. AN. "REAL-TIME VISUALIZATION OF MORPHOLOGICAL EVOLUTION OF N, N'-di(naphthalene-1-yl)-N, N'-diphthalbenzidine THIN FILMS: VARIABLE TEMPERATURE ATOMIC FORCE MICROSCOPY STUDY." International Journal of Nanoscience 01, no. 05n06 (2002): 725–30. http://dx.doi.org/10.1142/s0219581x02000966.

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Variable temperature tapping mode atomic force microscopy is exploited to in situ visualize the morphological evolution of N, N'-di(naphthalene-1-yl)-N, N'-diphthalbenzidine (NPB) thin film. The apparent glass transition of the NPB thin film initially occurred at 60°C, proceeded until 95°C, and crystallization from the glassy state quickly appeared at 135°C. The NPB thin film gradually melted and disappeared when the temperature was above 175°C, revealing the underlying layer. These observations are technically helpful and significant to gauge the temperature dependent lifetime and luminance o

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17

Mingang, YIN, TIAN Gang, SUN Zhili, and SUN Yao. "M/M/c/N Queue with Multiple-priority and Abandonment." Journal of Mechanical Engineering 55, no. 14 (2019): 197. http://dx.doi.org/10.3901/jme.2019.14.197.

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18

Subramanian, Raghavendran, and Kazem Kazerounian. "Improved Molecular Model of a Peptide Unit for Proteins." Journal of Mechanical Design 129, no. 11 (2006): 1130–36. http://dx.doi.org/10.1115/1.2771230.

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Pauling et al. (1951, “The Structure of Proteins: Two Hydrogen-Bonded Helical Configurations of the Polypeptide Chain,” Proc. Natl. Acad. Sci. U.S.A., 37(4), pp. 205–211) in their seminal paper in 1951 reported numerical values for the bond lengths and bond angles for a peptide unit in proteins. These values became the standard model for several decades after that. In this paper, we have made an attempt to calibrate the values of these bond lengths and bond angles based on a systematic approach applied to a collection of proteins defined structurally in the protein data bank (PDB). Our method

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19

Mutoharoh, Achmad Hufad, Maman Faturrohman, and Isti Rusdiyani. "Unplugged Coding Activities for Early Childhood Problem-Solving Skills." JPUD - Jurnal Pendidikan Usia Dini 15, no. 1 (2021): 121–40. http://dx.doi.org/10.21009/jpud.151.07.

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Problem solving skills are very important in supporting social development. Children with problem solving skills can build healthy relationships with their friends, understand the emotions of those around them, and see events with other people's perspectives. The purpose of this study was to determine the implementation of playing unplugged coding programs in improving early childhood problem solving skills. This study used a classroom action research design, using the Kemmis and Taggart cycle models. The subjects of this study were children aged 5-6 years in Shafa Marwah Kindergarten. Researc

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20

Ohtani, H., and M. Hillert. "A thermodynamic assessment of the V-N system." Calphad 15, no. 1 (1991): 11–24. http://dx.doi.org/10.1016/0364-5916(91)90022-c.

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21

Ziane, Abderrezzaq, Mohamed Amrani, Abdelaziz Rabehi, and Zineb Benamara. "Low- and High-Frequency C–V Characteristics of Au/n-GaN/n-GaAs." International Journal of Nanoscience 18, no. 06 (2018): 1850039. http://dx.doi.org/10.1142/s0219581x18500394.

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Au/GaN/GaAs Schottky diode created by the nitridation of n-GaAs substrate which was exposed to a flow of active nitrogen created by a discharge source with high voltage in ultra-high vacuum with two different thicknesses of GaN layers (0.7[Formula: see text]nm and 2.2[Formula: see text]nm), the I–V and capacitance–voltage (C–V) characteristics of the Au/n-GaN/n-GaAs structures were studied for low- and high-frequency at room temperature. The measurements of I–V of the Au/n-GaN/n-GaAs Schottky diode were found to be strongly dependent on bias voltage and nitridation process. The electrical para

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22

Abad-Coronel, Cristian, Johanna Córdova, Andrea Merchán, et al. "Comparative Analysis of the Fracture Resistance of a Polymeric Material for 3D Printing and a Milled Polymethylmethacrylate Material as Interim Material for Fixed Partial Dentures: New Material Updated." Designs 7, no. 5 (2023): 118. http://dx.doi.org/10.3390/designs7050118.

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The aim of this study was to evaluate and compare the fracture resistance of a temporary three-unit fixed dental prosthesis (FDP) made of a new polymeric material obtained by an additive technique (3DPP) using a computer-aided design and manufacturing (CAD/CAM) system, comparing the prosthesis to the respective outcomes of temporary polymethylmethacrylate (PMMA) FDPs obtained by a subtractive technique (milling). Methods: Three-unit FDPs were 3D printed using a polymeric material (n = 20) or milled using polymethylmethacrylate (n = 20). After thermocycling at 5000 cycles at extreme temperature

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23

Grujicic, M., A. M. Sarosiek, L. Kaufman, and W. S. Owen. "The carbonitride/austenite equilibrium in Fe(C + N)VNbMn system." Calphad 9, no. 2 (1985): 117–28. http://dx.doi.org/10.1016/0364-5916(85)90018-5.

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24

Wang, Shaoqing, Jiantao Wei, Yaru Wang, et al. "Thermodynamic reassessments of the Ti–Si–C/Ti–Si–N systems and thermodynamic calculations of CVD TiSiCN hard-coating based on the Ti–Si–C–N quaternary system." Calphad 82 (September 2023): 102586. http://dx.doi.org/10.1016/j.calphad.2023.102586.

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25

Han, Xue, Xiaofei Yan, and Deyu Zhang. "On Fourier Coefficients of the Symmetric Square L-Function at Piatetski-Shapiro Prime Twins." Mathematics 9, no. 11 (2021): 1254. http://dx.doi.org/10.3390/math9111254.

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Let Pc(x)={p≤x|p,[pc]areprimes},c∈R+∖N and λsym2f(n) be the n-th Fourier coefficient associated with the symmetric square L-function L(s,sym2f). For any A>0, we prove that the mean value of λsym2f(n) over Pc(x) is ≪xlog−A−2x for almost all c∈ε,(5+3)/8−ε in the sense of Lebesgue measure. Furthermore, it holds for all c∈(0,1) under the Riemann Hypothesis. Furthermore, we obtain that asymptotic formula for λf2(n) over Pc(x) is ∑p,qprimep≤x,q=[pc]λf2(p)=xclog2x(1+o(1)), for almost all c∈ε,(5+3)/8−ε, where λf(n) is the normalized n-th Fourier coefficient associated with a holomorphic cusp form f

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Lv, Zongming, Muhammad Junaid Ali Junjua, Muhammad Tajammal Tahir, and Khurram Shabbir. "Certain Bounds of Regularity of Elimination Ideals on Operations of Graphs." Mathematical Problems in Engineering 2021 (October 29, 2021): 1–8. http://dx.doi.org/10.1155/2021/3697430.

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Elimination ideals are regarded as a special type of Borel type ideals, obtained from degree sequence of a graph, introduced by Anwar and Khalid. In this paper, we compute graphical degree stabilities of K n ∨ C m and K n ∗ C m by using the DVE method. We further compute sharp upper bound for Castelnuovo–Mumford regularity of elimination ideals associated to these families of graphs.

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27

Prieto, G., M. Velez, P. Angueira, D. Guerra, and D. de la Vega. "Minimum C/N requirements for DRM reception based on field trials." IEEE Communications Letters 9, no. 10 (2005): 877–79. http://dx.doi.org/10.1109/lcomm.2005.10008.

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28

Zhu, Juanxiu, Lu Hu, Han Xie, and Kehong Li. "A PH i /PH i , n / C / C Queuing Model in Randomly Changing Environments for Traffic Circulation Systems." Journal of Advanced Transportation 2022 (July 20, 2022): 1–19. http://dx.doi.org/10.1155/2022/6533567.

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Robust optimal design of circulation systems (e.g., roads for vehicles or corridors for pedestrians) relies on an accurate steady-state traffic flow model that considers the effect of randomly changing environmental factors (e.g., daily periodicity and weather). Most analytical models assume that the customer interarrival time and service time of circulation facilities follow the exponential distribution with fixed rate parameters, which is unrealistic in most cases. In this paper, we develop a stationary PH i /PH i , n / C / C state-dependent queuing model in a randomly changing environment (

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29

Pashchenko, Valeriy. "Analysis of technological possibilities of N‒O‒C‒H system arc plasma in surface engineering processes." Eastern-European Journal of Enterprise Technologies 2, no. 12 (122) (2023): 27–34. http://dx.doi.org/10.15587/1729-4061.2023.277756.

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The object of this study was the substances that could be used to generate arc plasma. Conventional and promising plasma media were analyzed in order to identify the most universal one in terms of a set of properties for efficient energy transfer of material. It is shown that the mean-enthalpy media have a harmonious ratio of temperature and enthalpy and could provide a change in the energy state of the processed material with maximum efficiency. It is established that the most universal set of properties is demonstrated by the medium enthalpy plasma of the N‒O‒C‒H system. The use of mixtures

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Escalona, Escalona Y., Vega A. Romero, Osorio S.A. Marrero, and Puente R. Rodrígez. "Sistema para la solución de problemas de cómputo basado en el Método de los Grafos Dicromáticos (System for computer troubleshooting method based on dichromatic graphs)." GECONTEC: Revista Internacional de Gestión del Conocimiento y la Tecnología 1, no. 1 (2013): 37–46. https://doi.org/10.5281/zenodo.7080479.

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Resumen El presente artículo propone una herramienta de resolución de problemas de cómputo basado en el Método de los Grafos Dicromáticos. Además, se describe la arquitectura diseñada, así como las herramientas y tecnologías empleadas para la implementación de la solución. La propuesta constituye un aporte al valor práctico del Método de los Grafos Dicromáticos tomando en cuenta la integración con otras herramientas existentes para la aplicación del dicho métodos en problemas

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Ucan, Yasemen, and Resat Kosker. "The Real Forms of the Fractional Supergroup SL(2,C)." Mathematics 9, no. 9 (2021): 933. http://dx.doi.org/10.3390/math9090933.

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The real forms of complex groups (or algebras) are important in physics and mathematics. The Lie group SL2,C is one of these important groups. There are real forms of the classical Lie group SL2,C and the quantum group SL2,C in the literature. Inspired by this, in our study, we obtain the real forms of the fractional supergroups shown with A3NSL2,C, for the non-trivial N = 1 and N = 2 cases, that is, the real forms of the fractional supergroups A31SL2,C and A32SL2,C.

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Zubizarreta-Macho, Álvaro, Óscar Alonso-Ezpeleta, Alberto Albaladejo Martínez, et al. "Novel Electronic Device to Quantify the Cyclic Fatigue Resistance of Endodontic Reciprocating Files after Using and Sterilization." Applied Sciences 10, no. 14 (2020): 4962. http://dx.doi.org/10.3390/app10144962.

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Background: The aim of this study was to analyze the effects of the time of use (TU) and sterilization cycles (SC) of endodontic reciprocating files on cyclic fatigue resistance. Methods: One-hundred-and-twenty (120) Procodile NiTi endodontic reciprocating instruments were selected at random and distributed into the following study groups: A: 0 sterilization cycles/0s time of use (n = 10); B: 0/60 (n = 10); C: 0/120 (n = 10); D: 1/0 (n = 10); E: 1/60 (n = 10); F: 1/120 (n = 10); G: 5/0 (n = 10); H: 5/60 (n = 10); I: 5/120 (n = 10); J: 10/0 (n = 10); K: 10/60 (n = 10); and L: 10/120 (n = 10). A

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Trojovská , Eva, and Pavel Trojovský. "On Fibonacci Numbers of Order r Which Are Expressible as Sum of Consecutive Factorial Numbers." Mathematics 9, no. 9 (2021): 962. http://dx.doi.org/10.3390/math9090962.

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Let (tn(r))n≥0 be the sequence of the generalized Fibonacci number of order r, which is defined by the recurrence tn(r)=tn−1(r)+⋯+tn−r(r) for n≥r, with initial values t0(r)=0 and ti(r)=1, for all 1≤i≤r. In 2002, Grossman and Luca searched for terms of the sequence (tn(2))n, which are expressible as a sum of factorials. In this paper, we continue this program by proving that, for any ℓ≥1, there exists an effectively computable constant C=C(ℓ)>0 (only depending on ℓ), such that, if (m,n,r) is a solution of tm(r)=n!+(n+1)!+⋯+(n+ℓ)!, with r even, then max{m,n,r}<C. As an application, we solv

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R, N. Susheel, M. Mathumitha B, and C. Raju Mr. "Care – Max for Drowsiness Detection and Notification." International Journal of Trend in Scientific Research and Development 4, no. 3 (2020): 207–11. https://doi.org/10.5281/zenodo.3892517.

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This project proposes drowsiness detection and notification system for vehicles and a mobile application for car maintenance. The major objective of the system is to prevent the road accidents caused by driver falling asleep during the travel. The system for drowsiness detection has a camera that monitors the driverâ€™s eye continuously. It calculates the eye aspect ratio to detect if the driver is drowsy. If found drowsy, alarm rings. In this project, a Raspberry Pi board is used for drowsiness detection and alerting the driver. The IoT based mobile application built using an

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Zhang, Cong, Haiqing Yin, Ruijie Zhang, Xuanhui Qu, and Yong Du. "Thermodynamic description of phase equilibria in the C–Mo–W–N quaternary system." Calphad 62 (September 2018): 201–6. http://dx.doi.org/10.1016/j.calphad.2018.07.003.

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Trush, V. A., N. S. Kariaka, I. S. Konovalova, S. V. Shishkina, and V. M. Amirkhanov. "Synthesis, crystal structure, Hirschfeld surface analysis and biological activity prediction of N-(dimethoxyphosphoryl)-1-methylpyridinium-4-carboximidate." Voprosy Khimii i Khimicheskoi Tekhnologii, no. 3 (May 2021): 137–44. http://dx.doi.org/10.32434/0321-4095-2021-136-3-137-144.

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N-(dimethoxyphosphoryl)-1-methylpyridinium-4-carboximidate, a new carbacylamidophosphate-type compound, was synthesized and characterized by means of IR, 1H and 31P NMR and UV-Vis spectroscopies and X-ray analysis. The molecule of the synthesized compound has triclinic (P-1) symmetry, displays monomeric motif in crystal and crystalizes as solvate containing methanol molecule, which is connected to carbacylamidophosphate molecule through O(2)H(5A)–O(5) hydrogen bond. Through – stacking interactions, the molecules of the synthesized compound are linked in the chain along the a crystallograp

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Saha, Laxman, Bapan Das, Kalishankar Tiwary, Kinkar Chandra Das, and Yilun Shang. "Optimal Multi-Level Fault-Tolerant Resolving Sets of Circulant Graph C(n : 1, 2)." Mathematics 11, no. 8 (2023): 1896. http://dx.doi.org/10.3390/math11081896.

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Let G=(V(G),E(G)) be a simple connected unweighted graph. A set R⊂V(G) is called a fault-tolerant resolving set with the tolerance level k if the cardinality of the set Sx,y={w∈R:d(w,x)≠d(w,y)} is at least k for every pair of distinct vertices x,y of G. A k-level metric dimension refers to the minimum size of a fault-tolerant resolving set with the tolerance level k. In this article, we calculate and determine the k-level metric dimension for the circulant graph C(n:1,2) for all possible values of k and n. The optimal fault-tolerant resolving sets with k tolerance are also delineated.

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Natarajan, N., M. Vasudevan, and A. Venkatesh. "A Simple Computer Code for Result Analysis of University Graduates." Journal of Engineering Education Transformations 38, no. 1 (2024): 60–70. http://dx.doi.org/10.16920/jeet/2024/v38i1/24174.

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Abstract: In the realm of higher education, efficient and user-friendly tools for result analysis play a pivotal role in evaluating the academic performance of university graduates. A systematic processing of the examination results and their meaningful representation requires enormous labor when attempted manually. The students are generally unaware of the computational metrics of semester grade point average (SGPA) and cumulative grade point average (CGPA) though they like to get updated on their performance periodically. In this study, a straightforward computer code is developed in C++ lan

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Hunderup, J. W., and R. J. Roby. "An Experimental Investigation of the Conversion of NO to NO2 at High Pressure." Journal of Engineering for Gas Turbines and Power 118, no. 4 (1996): 756–64. http://dx.doi.org/10.1115/1.2816991.

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Unexpectedly high concentrations of NO2 formation have been noted in stack emissions from industrial combustors. NO2 formation has been reported to occur through the so-called “HO2 mechanism” in which NO combines with HO2 to produce NO2 and OH In this study, the formation of NO2 was investigated at superatmospheric pressures through experiments and computer modeling. Computer modeling utilized the CHEMKIN chemical kinetics program and a subset of a previously published C–H–O–N system mechanism. Experimental work was conducted using a high-pressure flow reactor designed and built in the course

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Laurinčikas, Antanas, and Renata Macaitienė. "A Generalized Discrete Bohr–Jessen-Type Theorem for the Epstein Zeta-Function." Mathematics 11, no. 4 (2023): 799. http://dx.doi.org/10.3390/math11040799.

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Suppose that Q is a positive defined n×n matrix, and Q[x̲]=x̲TQx̲ with x̲∈Zn. The Epstein zeta-function ζ(s;Q), s=σ+it, is defined, for σ>n2, by the series ζ(s;Q)=∑x̲∈Zn∖{0̲}(Q[x̲])−s, and it has a meromorphic continuation to the whole complex plane. Let n⩾4 be even, while φ(t) is an increasing differentiable function with a continuous monotonic bounded derivative φ′(t) such that φ(2t)(φ′(t))−1≪t, and the sequence {aφ(k)} is uniformly distributed modulo 1. In the paper, it is obtained that 1N#N⩽k⩽2N:ζ(σ+iφ(k);Q)∈A, A∈B(C), for σ>n−12, converges weakly to an explicitly given probability m

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41

Мазурков, Михаил Иванович, та Максим Юрьевич Герасименко. "Быстрые ортогональные преобразования на основе совершенных двоичных решеток". Известия высших учебных заведений. Радиоэлектроника 49, № 9 (2006): 54–60. http://dx.doi.org/10.20535/s0021347006090068.

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Предложено правило построения нового класса быстрых ортогональных преобразований – матриц C, порядков n = (2k)2 и n = (3•2k)2, k = 1, 2, … построенных на основе совершенных двоичных решеток порядков N = 2k, либо N = 3•2k. Показано, что бинарные ортогональные матрицы C обладают практически привлекательным свойством многопелевого циклического сдвига (N-сдвига), что обеспечивает эффективную процедуру скользящего метода расчета коэффициентов преобразования.

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42

Ranatowski, Eugeniusz. "Problems of welding in shipbuilding - an analytic-numerical assessment of the thermal cycle in HAZ with three dimensional heat source models in agreement with modelling rules." Polish Maritime Research 17, no. 3 (2010): 45–52. http://dx.doi.org/10.2478/v10012-010-0027-y.

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Problems of welding in shipbuilding - an analytic-numerical assessment of the thermal cycle in HAZ with three dimensional heat source models in agreement with modelling rules This part is continuation of PART II. Analytic solutions for the temperature distribution in HAZ - presented in the previous part of this article are transformed for computer calculation with used Mathcad programme. There are established algorithms in moving and stationary systems for thermal cycle calculating. Finally, a few analytical examples with use of C-I-N and D-E models are demonstrated.

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Laurinčikas, Antanas, and Renata Macaitienė. "A Generalized Bohr–Jessen Type Theorem for the Epstein Zeta-Function." Mathematics 10, no. 12 (2022): 2042. http://dx.doi.org/10.3390/math10122042.

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Let Q be a positive defined n×n matrix and Q[x̲]=x̲TQx̲. The Epstein zeta-function ζ(s;Q), s=σ+it, is defined, for σ>n2, by the series ζ(s;Q)=∑x̲∈Zn\{0̲}(Q[x̲])−s, and is meromorphically continued on the whole complex plane. Suppose that n⩾4 is even and φ(t) is a differentiable function with a monotonic derivative. In the paper, it is proved that 1Tmeast∈[0,T]:ζ(σ+iφ(t);Q)∈A, A∈B(C), converges weakly to an explicitly given probability measure on (C,B(C)) as T→∞.

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44

Sun, Yuan, Xiaona Jia, and Qing Meng. "Characteristic Evaluation of Recombinant MiSp/Polylactic Acid-Glycolic Acid (PLGA) Nanofiber Scaffolds as Potential Scaffolds for Bone Tissue Engineering." International Journal of Molecular Sciences 24, no. 2 (2023): 1219. http://dx.doi.org/10.3390/ijms24021219.

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Biomaterial-based nanofibrous scaffolds are the most effective alternative to bone transplantation therapy. Here, two recombinant minor ampullate spidroins (spider silk proteins), R1SR2 and NR1SR2C, were blended with Poly(lactic-co-glycolic) Acid (PLGA), respectively, to generate nanofiber scaffolds by electrospinning. The N-terminal (N), C-terminal (C), repeating (R1 and R2) and spacer (S) modules were all derived from the minor ampullate spidroins (MiSp). The physical properties and structures of the blended scaffolds were measured by scanning electron microscopy (SEM), water contact angle m

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Kothuru, Bhagyalakshmi, and V. Amarendra Babu. "Partial Addition and Ternary Product Based -So- Semirings-2." International Journal of Engineering and Advanced Technology 9, no. 1s5 (2019): 306–10. http://dx.doi.org/10.35940/ijeat.a1110.1291s519.

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Here we are introducing thenotions i-system, idempotent, centre of a ternary  -SO semiring, Nilpotent are introduced and it is proved that some equivalent conditions. Further it is also proved that (i) if C be a ternary  - SO semiring, m is a “strongly regular element”, then ∃𝝑, 𝝁∈ Г also n∈C ∋m = m𝝑n𝝁m,n = n𝝁m𝝑n (ii) If “I be an Ideal of A strongly regular ternary  - SOsemiring R then I is strongly regular and any ideal J of I is an ideal of R” and many more properties were proved. Mathematical subject classification: 16Y60.

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Qiu, Wang-Hua, and Xin Zhan. "Curvature Pinching Problems for Compact Pseudo-Umbilical PMC Submanifolds in Sm(c)×R." Mathematics 12, no. 1 (2023): 68. http://dx.doi.org/10.3390/math12010068.

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Let Sm(c) denote a sphere with a positive constant curvature c and Mn(n≥3) be an n-dimensional compact pseudo-umbilical submanifold in a Riemannian product space Sm(c)×R with a nonzero parallel mean curvature vector (PMC), where R is a Euclidean line. In this paper, we prove a sequence of pinching theorems with respect to the Ricci, sectional and scalar curvatures of Mn, which allow us to generalize some classical curvature pinching results in spheres.

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Stringer, James C., L. Kent Thomas, and Ray G. Pierson. "Efficiency of D4 Gaussian Elimination on a Vector Computer." Society of Petroleum Engineers Journal 25, no. 01 (1985): 121–24. http://dx.doi.org/10.2118/11082-pa.

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Abstract The efficiency of D4 Gaussian elimination on a vector computer, the Cray- 1/S, it examined. The algorithm used in this work is employed routinely in Phillips Petroleum Co. reservoir simulation models. Comparisons of scalar Phillips Petroleum Co. reservoir simulation models. Comparisons of scalar and vector Cray-1/S times are given for various example cases including multiple unknowns per gridblock. Vectorization of the program on the Cray- 1/S is discussed. Introduction In reservoir simulation, the solution of large systems of linear equations accounts for a substantial percentage of

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Chatti, Karim, and Kyong K. Yun. "SAPSI-M: Computer Program for Analyzing Asphalt Concrete Pavements under Moving Arbitrary Loads." Transportation Research Record: Journal of the Transportation Research Board 1539, no. 1 (1996): 88–95. http://dx.doi.org/10.1177/0361198196153900112.

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A new solution for the dynamic analysis of asphalt concrete pavements subjected to moving fluctuating loads has been developed. The method builds on an existing model for stationary loads, SAPSI, which uses the complex response method of transient analysis with a continuum solution in the horizontal direction and a finite-element solution in the vertical direction. The structural model is an n-layered damped-elastic medium. The subgrade can be modeled as either a rigid base or a semi-infinite half space. The loads are surface pressure loads, and the analysis is under axisymmetric conditions. T

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Qaiser, Asif A., Rabia Nazar, Mehroz Anjum, et al. "Effects of composition, temperature and shear rate on chocolate milk rheology: an empirical modeling approach incorporating yield behavior." International Journal of Food Engineering 17, no. 7 (2021): 561–69. http://dx.doi.org/10.1515/ijfe-2019-0289.

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Abstract This study elucidates the effects of composition and temperature on the rheological behavior of chocolate milk formulation. The fat [0.5, 1 and 1.5 g] and xanthan gum contents [0.05, 0.1 and 0.15 g] varied and shear stress-strain rate data were recorded at varying temperature [21.4, 65 and 80 °C]. All compositions showed predominantly a pseudoplastic behavior [i.e., pseudoplasticity index, n < 1] with a strong influence on composition and temperature. Three semi-empirical rheological models, i.e. Power-law, Herschel–Bulkely, and Casson models were fitted on the data using an in-hou

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Kulkarni, Jayshri Sharad, and Raju Seenivasan. "Design of a novel triple-band monopole antenna for WLAN/WiMAX MIMO applications in the laptop computer." Circuit World 45, no. 4 (2019): 257–67. http://dx.doi.org/10.1108/cw-04-2019-0034.

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Purpose This paper aims to present a triple-band monopole antenna design of 0.2-mm thickness with an overall dimension of 21 × 8 mm2 for wireless local area network (WLAN)/worldwide interoperability for microwave access (WiMAX) multiple input and multiple output (MIMO) applications in the laptop computer. Design/methodology/approach It comprises three monopole radiating elements, namely, strip AD (inverted C), strip EG (inverted J) and strip FI (inverted U) along with two rectangular open-end tuning stubs, namely, “m” and “n” of size 1.5 × 0.9 mm2 and 1.8 × 0.9 mm2, respectively. The proposed

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