Artículos de revistas: "Marching-On-in-Degree"

1

Shi, Y. y J. M. Jin. "GPU‐accelerated time‐domain marching‐on‐in‐degree solution". Electronics Letters 49, n.º 6 (marzo de 2013): 393–94. http://dx.doi.org/10.1049/el.2012.4227.

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2

Jung, Baek-Ho, Zhong Ji, Tapan Kumar Sarkar, Magdalena Salazar-Palma y Mengtao Yuan. "A COMPARISON OF MARCHING-ON IN TIME METHOD WITH MARCHING-ON IN DEGREE METHOD FOR THE TDIE SOLVER". Progress In Electromagnetics Research 70 (2007): 281–96. http://dx.doi.org/10.2528/pier07013002.

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3

Shi, Yan, Cheng-Yi Tian y Chang-Hong Liang. "Discontinuous Galerkin Time-Domain Method Based on Marching-on-in-Degree Scheme". IEEE Antennas and Wireless Propagation Letters 16 (2017): 250–53. http://dx.doi.org/10.1109/lawp.2016.2570939.

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4

Shi, Yan y Jian-Ming Jin. "Time-domain augmented EFIE and its marching-on-in-degree solution". Microwave and Optical Technology Letters 53, n.º 6 (25 de marzo de 2011): 1439–44. http://dx.doi.org/10.1002/mop.26015.

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5

Geranmayeh, Amir, Wolfgang Ackermann y Thomas Weiland. "Space-FFT-accelerated marching-on-in-degree methods for finite periodic structures". International Journal of Microwave and Wireless Technologies 1, n.º 4 (19 de junio de 2009): 331–37. http://dx.doi.org/10.1017/s1759078709990328.

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A fast, yet unconditionally stable, solution of time-domain electric field integral equations (TD EFIE) pertinent to the scattering analysis of uniformly meshed and/or periodic conducting structures is introduced. A one-dimensional discrete fast Fourier transform (FFT)-based algorithm is proffered to expedite the calculation of the recursive spatial convolution products of the Toeplitz–block–Toeplitz retarded interaction matrices in a new marching-without-time-variable scheme. Additional saving owing to the system periodicity is concatenated with the Toeplitz properties due to the uniform discretization in multi-level sense. The total computational cost and storage requirements of the proposed method scale as O(Nt2Nslog Ns) and O(Nt Ns), respectively, as opposed to O(Nt2Ns2) and O(NtNs2) for classical marching-on-in-order methods, where Nt and Ns are the number of temporal and spatial unknowns, respectively. Simulation results for arrays of plate-like and cylindrical scatterers demonstrate the accuracy and efficiency of the technique.

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6

Zicong Mei, Yu Zhang, T. K. Sarkar, Baek Ho Jung, A. Garcia-Lamperez y M. Salazar-Palma. "An Improved Marching-on-in-Degree Method Using a New Temporal Basis". IEEE Transactions on Antennas and Propagation 59, n.º 12 (diciembre de 2011): 4643–50. http://dx.doi.org/10.1109/tap.2011.2165482.

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7

Shi, Yan, Jin Wang y Chang-Hong Liang. "A time-domain equivalence principle and its marching-on-in-degree solution". Microwave and Optical Technology Letters 56, n.º 10 (22 de julio de 2014): 2415–22. http://dx.doi.org/10.1002/mop.28598.

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8

Jin, Jungmin, Jacques W. M. Noordermeer, Wilma K. Dierkes y Anke Blume. "The Effect of Silanization Temperature and Time on the Marching Modulus of Silica-Filled Tire Tread Compounds". Polymers 12, n.º 1 (15 de enero de 2020): 209. http://dx.doi.org/10.3390/polym12010209.

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Marching modulus phenomena are often observed in silica-reinforced solution styrene–butadiene rubber/butadiene rubber (S-SBR/BR) tire tread compounds. When such a situation happens, it is difficult to determine the optimum curing time, and as a consequence the physical properties of the rubber vulcanizates may vary. Previous studies have demonstrated that the curing behavior of silica compounds is related to the degree of silanization. For the present work, the effect of silanization temperature and time on the marching modulus of silica-filled rubber was evaluated. The correlations between these mixing parameters and their effect on the factors that have a strong relation with marching modulus intensity (MMI) were investigated: the amount of bound rubber, the filler flocculation rate (FFR), and the filler–polymer coupling rate (CR). The MMI was monitored by measuring the vulcanization rheograms using a rubber process analyzer (RPA) at small (approximately 7%) and large (approximately 42%) strain in order to discriminate the effects of filler–filler and filler–polymer interactions on the marching modulus of silica-filled rubber compounds. The results were interpreted via the correlation between these factors and their effect on the MMI. A higher temperature and a longer silanization time led to a better degree of silanization, in order of decreasing influence.

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9

He, Zi, Ru-Shan Chen y Wei E. I. Sha. "An Efficient Marching-on-in-Degree Solution of Transient Multiscale EM Scattering Problems". IEEE Transactions on Antennas and Propagation 64, n.º 7 (julio de 2016): 3039–46. http://dx.doi.org/10.1109/tap.2016.2559521.

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10

Jin, J., J. W. M. Noordermeer, W. K. Dierkes y A. Blume. "THE ORIGIN OF MARCHING MODULUS OF SILICA-FILLED TIRE TREAD COMPOUNDS". Rubber Chemistry and Technology 93, n.º 2 (12 de junio de 2019): 378–94. http://dx.doi.org/10.5254/rct.19.80453.

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ABSTRACT Silica-reinforced S-SBR/BR tire tread compounds often show characteristic vulcanization profiles that do not exhibit a distinct maximum in the cure curve nor a plateau profile within acceptable time scales (marching modulus). In such a situation, it is difficult to determine the optimum curing time, and as a consequence, the physical properties of the rubber compounds may vary. Previous studies stated that the curing behavior of silica-filled rubber compounds is related to the degree of filler dispersion, the silanization, and the filler–polymer coupling reaction, as well as to the donation of free sulfur from the silane coupling agent. Such results imply that these are the key factors for minimization of the marching modulus. Various silane coupling agents with different sulfur ranks and functionalities were mixed at varied silanization temperatures. The correlation between these factors and their effect on the marching modulus intensity (MMI) were investigated. The MMI was monitored by measuring the vulcanization rheograms using a rubber process analyzer at small (approximately 7%) and large (approximately 42%) strains to discriminate the effects of filler–filler and filler–polymer interactions on the marching modulus of the silica-filled rubber compounds. Both factors have an intricate influence on the marching modulus, determined by the degree of filler–filler interaction and the coupling agent.

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11

Fan, Z. H., Z. He y R. S. Chen. "Marching-on-in-Degree Solution of the Transient Scattering From Multiple Bodies of Revolution". IEEE Transactions on Antennas and Propagation 64, n.º 1 (enero de 2016): 321–26. http://dx.doi.org/10.1109/tap.2015.2497354.

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12

Wang, Quanquan, Huazhong Liu, Yan Wang y Zhaoneng Jiang. "Marching-on-in-Degree Time-Domain Integral Equation Solver for Transient Electromagnetic Analysis of Graphene". Coatings 7, n.º 10 (17 de octubre de 2017): 170. http://dx.doi.org/10.3390/coatings7100170.

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13

Wang, Quanquan, Zukun Song, Jian Zhu y Huazhong Liu. "Transient Electromagnetic Analysis of Multilayer Graphene with Dielectric Substrate Using Marching-on-in-Degree Method". Coatings 10, n.º 8 (23 de julio de 2020): 718. http://dx.doi.org/10.3390/coatings10080718.

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The marching-on-in-degree (MOD) method is applied in this paper to analyze the transient electromagnetic scattering of multilayer graphene and a dielectric substrate. The time domain resistive boundary condition (TD-RBC) integral equation and time domain Poggio–Miller–Chang–Harrington–Wu (PMCHW) integral equation of electric and magnetic currents are employed to model graphene and the dielectric substrate, respectively. These two sets of equations are coupled and solved with the MOD method. The dispersion of multilayer graphene’s surface conductivity/resistivity in the frequency domain is taken into account in the analytical convolution of temporal surface conductivity/resistivity and magnetic/electric current densities. The Rao-Wilton-Glisson (RWG) basis function over triangle patches and weighted Laguerre polynomial (WLP) are used as the spatial and temporal basis/testing functions, respectively. The orthogonal WLPs are defined from zero to +∞ and are convergent to zero with time passing. These advantages ensure late time stability of the transient solution. A stable electric/magnetic current is achieved. A radar cross section and extinction cross section in the frequency domain are also obtained and compared with commercial software results to verify the proposed method.

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14

Omri, D., M. Aidi y T. Aguili. "Marching-on in degree method for electromagnetic coupling analysis of carbon nanotubes (CNT) dipoles array". Journal of Electromagnetic Waves and Applications 29, n.º 18 (8 de junio de 2015): 2454–71. http://dx.doi.org/10.1080/09205071.2015.1047000.

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15

Ding, D. Z., H. H. Zhang y R. S. Chen. "Marching-on-in-Degree Method With Delayed Weighted Laguerre Polynomials for Transient Electromagnetic Scattering Analysis". IEEE Transactions on Antennas and Propagation 63, n.º 4 (abril de 2015): 1822–27. http://dx.doi.org/10.1109/tap.2015.2399511.

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16

He, Zi, Huan-Huan Zhang y Ru-Shan Chen. "Acceleration of the Impedance Matrix Filling for Marching-on-in-Degree Method by Equivalent Dipole Moment". Electromagnetics 35, n.º 4 (27 de abril de 2015): 260–72. http://dx.doi.org/10.1080/02726343.2015.1028262.

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17

He, Z. y R. S. Chen. "An Efficient High-Order Marching-on-in-Degree Solver for Conducting and Dielectric Bodies of Revolution". IEEE Transactions on Antennas and Propagation 65, n.º 8 (agosto de 2017): 4374–78. http://dx.doi.org/10.1109/tap.2017.2717972.

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18

He, Z. y R. S. Chen. "A Fast Marching-on-in-Degree Solution for Analysis of Conductors Coated With Thin Dispersive Dielectric". IEEE Transactions on Antennas and Propagation 65, n.º 9 (septiembre de 2017): 4751–58. http://dx.doi.org/10.1109/tap.2017.2728121.

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19

Yu, Wenming, Dagang Fang y Chen Zhou. "Marching-on-in-Degree Based Time-Domain Magnetic Field Integral Equation Method for Bodies of Revolution". IEEE Microwave and Wireless Components Letters 17, n.º 12 (diciembre de 2007): 813–15. http://dx.doi.org/10.1109/lmwc.2007.910455.

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20

Shi, Yan, Wei Tang y Chang-Hong Liang. "Calderón preconditioner for a marching-on-in-degree solution of time-domain electric field integral equation". Microwave and Optical Technology Letters 56, n.º 5 (11 de marzo de 2014): 1069–72. http://dx.doi.org/10.1002/mop.28258.

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21

Wang, Quan-Quan, Zhi-Wei Liu, Yi-Fei Shi, Huan-Huan Zhang y Ru-Shan Chen. "Efficient Generation of Aggregative Basis Functions in the Marching-on-in-Degree Time-Domain Integral Equation Solver". Electromagnetics 33, n.º 5 (4 de julio de 2013): 370–78. http://dx.doi.org/10.1080/02726343.2013.792720.

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22

He, Z., D. Z. Ding y R. S. Chen. "An Efficient Marching-on-in-Degree Solver of Surface Integral Equation for Multilayer Thin Medium-Coated Conductors". IEEE Antennas and Wireless Propagation Letters 15 (2016): 1458–61. http://dx.doi.org/10.1109/lawp.2015.2513069.

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23

Zhang, Huan Huan, Zhen Hong Fan y Ru Shan Chen. "Marching-on-in-Degree Solver of Time-Domain Finite Element-Boundary Integral Method for Transient Electromagnetic Analysis". IEEE Transactions on Antennas and Propagation 62, n.º 1 (enero de 2014): 319–26. http://dx.doi.org/10.1109/tap.2013.2288351.

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24

Zhu, Ming-Da, Tapan K. Sarkar y Heng Chen. "A Stabilized Marching-on-in-Degree Scheme for the Transient Solution of the Electric Field Integral Equation". IEEE Transactions on Antennas and Propagation 67, n.º 5 (mayo de 2019): 3232–40. http://dx.doi.org/10.1109/tap.2019.2901067.

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25

He, Zi y Ru Shan Chen. "A Novel Marching-on-in-Degree Solver of Time Domain Parabolic Equation for Transient EM Scattering Analysis". IEEE Transactions on Antennas and Propagation 64, n.º 11 (noviembre de 2016): 4905–10. http://dx.doi.org/10.1109/tap.2016.2598157.

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26

Ataeian, Hadi, Parisa Dehkhoda y Ahad Tavakoli. "Fast Time-Domain Analysis of a Metallic Enclosure With Arbitrary-Shaped Apertures by Marching-on-in-Degree". IEEE Transactions on Electromagnetic Compatibility 60, n.º 3 (junio de 2018): 638–46. http://dx.doi.org/10.1109/temc.2017.2749202.

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27

Mei, Zicong, Yu Zhang, Xunwang Zhao, Baek Ho Jung, Tapan K. Sarkar y Magdalena Salazar-Palma. "Choice of the Scaling Factor in a Marching-on-in-Degree Time Domain Technique Based on the Associated Laguerre Functions". IEEE Transactions on Antennas and Propagation 60, n.º 9 (septiembre de 2012): 4463–67. http://dx.doi.org/10.1109/tap.2012.2207066.

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28

Russell, Jeffrey A. y Moegi Yamaguchi. "Sound Exposure of Healthcare Professionals Working with a University Marching Band". Journal of the American Academy of Audiology 29, n.º 01 (enero de 2018): 083–89. http://dx.doi.org/10.3766/jaaa.17018.

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AbstractMusic-induced hearing disorders are known to result from exposure to excessive levels of music of different genres. Marching band music, with its heavy emphasis on brass and percussion, is one type that is a likely contributor to music-induced hearing disorders, although specific data on sound pressure levels of marching bands have not been widely studied. Furthermore, if marching band music does lead to music-induced hearing disorders, the musicians may not be the only individuals at risk. Support personnel such as directors, equipment managers, and performing arts healthcare providers may also be exposed to potentially damaging sound pressures. Thus, we sought to explore to what degree healthcare providers receive sound dosages above recommended limits during their work with a marching band.The purpose of this study was to determine the sound exposure of healthcare professionals (specifically, athletic trainers [ATs]) who provide on-site care to a large, well-known university marching band. We hypothesized that sound pressure levels to which these individuals were exposed would exceed the National Institute for Occupational Safety and Health (NIOSH) daily percentage allowance.Descriptive observational studyEight ATs working with a well-known American university marching band volunteered to wear noise dosimeters.During the marching band season, ATs wore an Etymotic ER-200D dosimeter whenever working with the band at outdoor rehearsals, indoor field house rehearsals, and outdoor performances. The dosimeters recorded dose percent exposure, equivalent continuous sound levels in A-weighted decibels, and duration of exposure. For comparison, a dosimeter also was worn by an AT working in the university’s performing arts medicine clinic. Participants did not alter their typical duties during any data collection sessions. Sound data were collected with the dosimeters set at the NIOSH standards of 85 dBA threshold and 3 dBA exchange rate; the NIOSH 100% daily dose is an exposure to 85 dBA over 8 h. Dose data for each session were converted to a standardized dose intensity by dividing the dose percentage by the duration of the exposure and setting the NIOSH standard as a factor of 1.0. This allowed convenient relative comparisons of dose percentages of vastly different exposure durations. Analysis of variance examined relationships of noise exposures among the venues; post hoc testing was used to assess pairwise differences.As hypothesized, ATs were exposed to high sound pressure levels and dose percentages greatly exceeding those recommended by NIOSH. Higher sound levels were recorded in performance venues compared with rehearsal venues. In addition to the band music, crowd noise and public address systems contribute to high sound levels at performances.Our results suggest that healthcare providers working with marching bands are exposed to dangerous levels of sound during performances. This is especially true at venues such as football stadiums, where crowd noise and public address systems add to sound pressure. A hearing conservation program, including protection, should be required for all healthcare staff who work with marching bands. Moreover, our results should inform hearing conservation practices for marching musicians, directors, and support personnel.

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29

Shi, Yan y Jian-Ming Jin. "A Marching-on-in-Degree Solution of Volume Integral Equations for Transient Electromagnetic Scattering by Bi-Isotropic Objects". Electromagnetics 31, n.º 3 (5 de abril de 2011): 159–72. http://dx.doi.org/10.1080/02726343.2011.558449.

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30

Yan Shi y Jian-Ming Jin. "A Higher-Order Nyström Scheme for a Marching-On-in-Degree Solution of the Magnetic Field Integral Equation". IEEE Antennas and Wireless Propagation Letters 10 (2011): 1059–62. http://dx.doi.org/10.1109/lawp.2011.2170050.

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31

Sandeep, Srikumar y Albin Gasiewski. "Transient Analysis of Dispersive, Periodic Structures for Oblique Plane Wave Incidence Using Laguerre Marching-on-in-Degree (MoD)". IEEE Transactions on Antennas and Propagation 61, n.º 8 (agosto de 2013): 4132–38. http://dx.doi.org/10.1109/tap.2013.2264044.

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32

Zoghi, Mahshid, Parisa Dehkhoda y Seyed Hossein Hesamedin Sadeghi. "EFIE Solution of Transmitted Electromagnetic Field Through a Perforated Metallic Shield by a Marching-on-in-Degree Approach". IEEE Transactions on Electromagnetic Compatibility 58, n.º 5 (octubre de 2016): 1579–86. http://dx.doi.org/10.1109/temc.2016.2580563.

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33

Jung, Baek-Ho, Zicong Mei y Tapan Kumar Sarkar. "TRANSIENT WAVE PROPAGATION IN A GENERAL DISPERSIVE MEDIA USING THE LAGUERRE FUNCTIONS IN A MARCHING-ON-IN-DEGREE (MOD) METHODOLOGY". Progress In Electromagnetics Research 118 (2011): 135–49. http://dx.doi.org/10.2528/pier11052408.

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34

Shi, Yan y Jian-Ming Jin. "A Time-Domain Volume Integral Equation and Its Marching-On-in-Degree Solution for Analysis of Dispersive Dielectric Objects". IEEE Transactions on Antennas and Propagation 59, n.º 3 (marzo de 2011): 969–78. http://dx.doi.org/10.1109/tap.2010.2103038.

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35

He, Z., H. H. Zhang y R. S. Chen. "Parallel Marching-on-in-Degree Solver of Time-Domain Combined Field Integral Equation for Bodies of Revolution Accelerated by MLACA". IEEE Transactions on Antennas and Propagation 63, n.º 8 (agosto de 2015): 3705–10. http://dx.doi.org/10.1109/tap.2015.2430879.

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36

Shi, Yan y Jian-Ming Jin. "Marching-on-in-degree solution of volume integral equations for analysis of transient electromagnetic scattering by inhomogeneous dielectric bodies with conduction loss". Microwave and Optical Technology Letters 53, n.º 5 (21 de marzo de 2011): 1104–9. http://dx.doi.org/10.1002/mop.25897.

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37

Lyu, Chao, Yann Capdeville y Liang Zhao. "Efficiency of the spectral element method with very high polynomial degree to solve the elastic wave equation". GEOPHYSICS 85, n.º 1 (1 de enero de 2020): T33—T43. http://dx.doi.org/10.1190/geo2019-0087.1.

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The spectral element method (SEM) has gained tremendous popularity within the seismological community to solve the wave equation at all scales. Classic SEM applications mostly rely on degrees 4–8 elements in each tensorial direction. Higher degrees are usually not considered due to two main reasons. First, high degrees imply large elements, which make the meshing of mechanical discontinuities difficult. Second, the SEM’s collocation points cluster toward the edge of the elements with the degree, degrading the time-marching stability criteria and imposing a small time step and a high numerical cost. Recently, the homogenization method has been introduced in seismology. This method can be seen as a preprocessing step before solving the wave equation that smooths out the internal mechanical discontinuities of the elastic model. It releases the meshing constraint and makes use of very high degree elements more attractive. Thus, we address the question of memory and computing time efficiency of very high degree elements in SEM, up to degree 40. Numerical analyses reveal that, for a fixed accuracy, very high degree elements require less computer memory than low-degree elements. With minimum sampling points per minimum wavelength of 2.5, the memory needed for a degree 20 is about a quarter that of the one necessary for a degree 4 in two dimensions and about one-eighth in three dimensions. Moreover, for the SEM codes tested in this work, the computation time with degrees 12–24 can be up to twice faster than the classic degree 4. This makes SEM with very high degrees attractive and competitive for solving the wave equation in many situations.

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38

Amelang, David J. "“A Broken Voice”: Iconic Distress in Shakespeare’s Tragedies". Anglia 137, n.º 1 (14 de marzo de 2019): 33–52. http://dx.doi.org/10.1515/ang-2019-0003.

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Abstract This article explores the change in dynamics between matter and style in Shakespeare’s way of depicting distress on the early modern stage. During his early years as a dramatist, Shakespeare wrote plays filled with violence and death, but language did not lose its composure at the sight of blood and destruction; it kept on marching to the beat of the iambic drum. As his career progressed, however, the language of characters undergoing an overwhelming experience appears to become more permeable to their emotions, and in many cases sentiment takes over and interferes with the character’s ability to speak properly. That is, Shakespeare progressively imbued his depictions of distress with a degree of linguistic iconicity previously unheard of in Elizabethan commercial drama. By focusing on the linguistic properties of three passages of iconic distress – Hamlet’s first soliloquy, Othello’s jealous rant, and King Lear’s dying words – this article analyses the rhetorical adjustments Shakespeare undertook in his effort to raise the level of verisimilitude of emotional speech in his plays.1

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39

Zhang, Jun y Frank Liou. "Adaptive Slicing for a Multi-Axis Laser Aided Manufacturing Process". Journal of Mechanical Design 126, n.º 2 (1 de marzo de 2004): 254–61. http://dx.doi.org/10.1115/1.1649966.

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An adaptive slicing algorithm which can generate optimal slices to achieve deposition without support structures for five-axis hybrid layered manufacturing is presented in this paper. Different from current adaptive slicing, this technique varies not only in layer thickness but also in slicing direction. The Laser Aided Manufacturing Process (LAMP), a five axis system combined material additive and removal process which was developed at the University of Missouri-Rolla, is used as an example. The multiple-degree-of-freedom system allows LAMP to build a part with minimum support structure. However, an automated method for path planning of such a system is necessary. Two techniques have been adapted to build the overhang between two adjacent layers: transition wall and surface tension. This paper addresses the critical slicing algorithm based on the above two techniques. The slicing direction is determined by a marching algorithm which is based on the surface normals of points on the side surface of the current slice.

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40

Zhang, Fang, Jili Zou y Dandan Huang. "Reconstruction Algorithm-Based Computed Tomography Image Feature for Evaluating the Effect of Internal Administration and Medicated Bath of Liangxue Xiaoyin Decoction on Psoriasis Vulgaris". Computational and Mathematical Methods in Medicine 2022 (7 de marzo de 2022): 1–12. http://dx.doi.org/10.1155/2022/7638507.

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Skin computed tomography (CT) image based on improved marching cubes (MC) algorithm was explored to evaluate the therapeutic effect of internal administration of Liangxue Xiaoyin decoction combined with medicated bath in the treatment of psoriasis vulgaris. 712 patients with psoriasis vulgaris blood heat syndrome in hospital were recruited as the research object, which were randomly divided into observation group (TCM oral therapy combined with medicinal bath) and control group (TCM oral therapy), each with 356 cases. Psoriasis area and severity index (PASI), pruritus degree, and clinical treatment effect were compared. The results showed that the reconstruction time of median method was greatly shorter, and the algorithm efficiency was improved by 40.6290%. After treatment, the psoriasis area and severity index (PASI) score of the observation group was 5.61 ± 1.15 , Δ PASI = 22.64 ± 2.15 . Δ PASI % = 80.14 % , which were greatly higher than the control group (( 9.41 + 1.56 ) points, Δ PASI = 18.84 + 1.65 points, Δ PASI % = 66.69 % ) ( P < 0.05 ). After treatment, the itching degree of the observation group was 3.03 ± 1.01 points, which was lower than that of the control group (( 3.71 ± 1.06 ) points), and the itching degree of the observation group was greater than that of the control group, with substantial difference ( P < 0.05 ). The total effective rate of observation group (88.76%) was higher than that of control group (71.07%) ( P < 0.05 ). Therefore, skin CT image based on the improved MC algorithm can evaluate the therapeutic effect of internal administration of Liangxue Xiaoyin decoction combined with medicated bath in the treatment of psoriasis vulgaris. The internal administration of Liangxue Xiaoyin decoction combined with medicated bath had a good effect on the treatment of psoriasis vulgaris and was of certain clinical application value.

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41

Moseev, D. S. "VEGETATION DYNAMICS OF MARSHES IN TIDAL ESTUARIES OF THE WAIT SEA AND THE CHESHSKAYA BAY OF THE BARENTS SEA". Journal of Oceanological Research 47, n.º 4 (2 de diciembre de 2019): 32–52. http://dx.doi.org/10.29006/1564-2291.jor-2019.47(4).2.

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The article studies the dynamics of overgrowth of saline marches of tidal estuaries of the Whit. Changes in the coastal vegetation depend on the salinity of the water and soil, the magnitude of the tides and the degree of flooding of the coastal strip, the relief and the mechanical composition of the coastal soils. Given the environmental series of overgrowing marches under conditions differing in the magnitude of the tides at the estuary of rivers. It is shown that the halophytic vegetation and its communities occupy the largest areas in the macrotidal conditions of the estuaries of the Chizha and Chesha rivers of the Kanin Peninsula, where marching coast reach 10–20 km from the coastline of the sea at the mouths of rivers. The dynamics of coastal communities depending on water salinity is studied. Communities dominated by obligate halophytes tend to strongly saline ecotopes of marches located on the maritime boundary of estuaries filled with water salinity of more than 20‰, in the zone of constant salinization of estuaries, communities of facultative halophytes and tolerant species more often occupy medium and slightly saline marches in the tops of estuaries.

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42

Hill, P. G., K. Miyagawa y J. D. Denton. "Fast and accurate inclusion of steam properties in two- and three-dimensional steam turbine flow calculations". Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 214, n.º 7 (1 de julio de 2000): 903–19. http://dx.doi.org/10.1243/0954406001523146.

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The Denton time-marching method for turbomachinery flow calculation has been modified for rapid and accurate access to the properties of steam in equilibrium dry and wet states and in the metastable dry region. Transition between metastable dry and equilibrium wet states is accomplished either at the stable equilibrium boundary or by allowing metastable equilibrium expansion followed by a condensation shock whose location depends on the local degree of subcooling of the metastable vapour and the local expansion rate. Steam properties and their derivatives are obtained from a wide-ranging Helmholtz representation of equilibrium (stable and metastable) thermodynamic properties and stored for use in an accurate Taylor series representation. Comparisons have been made of flow development in a low-pressure steam turbine blade row for three expansion assumptions: equilibrium stable and metastable dry, stable equilibrium, dry and wet, and dry expansion prior to a condensation ‘shock’ which is followed by equilibrium wet expansion. Inclusion of real steam properties extends calculation time for one iteration cycle by about 5 per cent and has little effect on the number of cycles required for convergence in the absence of a condensation shock; however, inclusion of the shock may double the time required for convergence.

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43

Varadarajan, Dhulasi Birundha y M. Chitra. "Environmental Policy: An Overview". Shanlax International Journal of Economics 11, n.º 2 (1 de marzo de 2023): 28–37. http://dx.doi.org/10.34293/economics.v11i2.6121.

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On the eve of India finishing seventy-five years of independence, it is necessary that we've to recapture the evolution of the country's environmental policy In recent years, notably since the first 1970’s, the earth planet has become more susceptible to environmental problems and there’s significant concern on whether the earth’s life network itself is being vulnerable. India is a giant country with a high population density and potential labour force. It’s a developing country marching towards 5 trillion economy, a strong, vibrant, multi-party democracy has high degree freelance judiciary and open media. Environmental policies are influenced by a multitude of factors and determine how environmental resources are accessed, apportioned, consumed, conserved, and governed. There exists a Paradigm shift in Environmental policies of India. This paper analyses the nature and magnitude and ideological change of 75 years of Environmental polices of India in 7different periods such as I: Period from 1947-1970:Post-independence Period, I: Period of 1970-1980: Decade of Environmental Obligations, III: Period of 1981-1990: Decade of Environmental Activism,, IV: Period of 1991-2000 :Decade of cooperative Environmental governance , Period of 2001-2010: Decade of Decentralised Environmental Governance, VI: Period from: 2011-2020:Decade of Centralisation of Natural Resources and VII: Period of 2020-2030 : Decade of International obligations.

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44

S, Sofana Reka, Prakash Venugopal, Ravi V, Hassan Haes Alhelou, Amer Al-Hinai y Pierluigi Siano. "Analysis of Electric Vehicles with an Economic Perspective for the Future Electric Market". Future Internet 14, n.º 6 (31 de mayo de 2022): 172. http://dx.doi.org/10.3390/fi14060172.

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The automotive industry is marching towards cleaner energy in the impending future. The need for cleaner energy is promoted by the government to a large degree in the global market in order to reduce pollution. Automobiles contribute to an upper scale in regard to the level of pollution in the environment. For cleaner energy in automobiles, the industry needs to be revolutionized in all needed ways to a massive extent. The industry has to move from the traditional internal combustion engine, for which the main sources of energy are nonrenewable sources, to alternative methods and sources of energy. The automotive industry is now focusing on electric vehicles, and more research is being highlighted from vehicle manufacturers to find solutions for the problems faced in the field of electrification. Therefore, to accomplish full electrification, there is a long way to go, and this also requires a change in the existing infrastructure in addition to many innovations in the fields of infrastructure and grid connectively as well as the economic impacts of electric vehicles in society. In this work, an analysis of the electric vehicle market with the economic impacts of electric vehicles is studied. This therefore requires the transformation of the automotive industry.

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45

Khettou, Nabil, Dragan Trifkovic y Slavko Muzdeka. "Using Modelling and Simulation to Predict Dynamics of Converted Ground Vehicle". Defence Science Journal 66, n.º 5 (30 de septiembre de 2016): 509. http://dx.doi.org/10.14429/dsj.66.9783.

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In order to redesign and convert the passenger ground vehicle Land Rover defender 110 into military vehicle for different surveillance and reconnaissance missions it is necessary, prior to equipment integration, to assess its future dynamic response. For this purpose, the 19-degree of freedom multibody simulation model of the defender was developed using the software package MSC.ADAMS/Car. The simulation model was validated using the instrumented experimental vehicle for two scenarios namely bump test and double lane change manoeuver. Comparison of numerical predictions suggests reasonably good agreement with the actual vehicle responses. The validated model was then used to assess the effect of longitudinal and vertical position of the added equipment on the responses of the upgraded vehicle. Lateral stability degradation due to the added equipment was also investigated defining the rollover threshold as an objective assessment criterion. The obtained results show considerable lateral stability degradation for both marching and operating heights of the added equipment.

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46

Kahlmann, Willi, Emanuel Poremba, Danila Potyagaylo, Olaf Dössel y Axel Loewe. "Modelling of patient-specific Purkinje activation based on measured ECGs". Current Directions in Biomedical Engineering 3, n.º 2 (7 de septiembre de 2017): 171–74. http://dx.doi.org/10.1515/cdbme-2017-0177.

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AbstractThe Purkinje system is part of the fast-conducting ventricular excitation system. The anatomy of the Purkinje system varies from person to person and imposes a unique excitation pattern on the ventricular myocardium, which defines the morphology of the QRS complex of the ECG to a large degree. While it cannot be imaged in-vivo, it plays an important role for personalizing computer simulations of cardiac electrophysiology. Here, we present a new method to automatically model and customize the Purkinje system based on the measured electrocardiogram (ECG) of a patient. A graphbased algorithm was developed to generate Purkinje systems based on the parameters fibre density, minimal distance from the atrium, conduction velocity, and position and timing of excitation sources mimicking the bundle branches. Based on the resulting stimulation profile, the activation times of the ventricles were calculated using the fast marching approach. Predescribed action potentials and a finite element lead field matrix were employed to obtain surface ECG signals. The root mean square error (RMSE) between the simulated and measured QRS complexes of the ECGs was used as cost function to perform optimization of the Purkinje parameters. One complete evaluation from Purkinje tree generation to the simulated ECG could be computed in about 10 seconds on a standard desktop computer. The measured ECG of the patient used to build the anatomical model was matched via parallel simplex optimization with a remaining RMSE of 4.05 mV in about 16 hours. The approach presented here allows to tailor the structure of the Purkinje system through the measured ECG in a patient-specific way. The computationally efficient implementation facilitates global optimization.

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47

Mańko, Grzegorz, Anna Kuśnierczyk, Magdalena Pieniążek y Wojciech Kurzydło. "Analysis of the connection between pain, disability and a radiological image determining the treatment process". Polish Hyperbaric Research 56, n.º 3 (1 de septiembre de 2016): 53–62. http://dx.doi.org/10.1515/phr-2016-0020.

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Abstract Introduction: The objective of this paper is to analyse the correlation between pain and the degree of disability, and the lesions shown on radiological examination of KOA. Material and method: The study encompassed 31 female patients (42 knees) aged 51-70 years, with diagnosed idiopathic knee osteoarthritis. Medical history and analysis of previously performed x-ray scans were conducted. The history included questions regarding pain (VAS, WOMAC index) and the maximum marching distance, the presence of oedema and instability as well as disability in everyday life (WOMAC index). The radiological lesions were assessed using the Kellgren and Lawrence Grading Scale. Moreover, the widths of the joint spaces were measured. Results: The patients’ pain in everyday activities (WOMAC) showed a positive correlation with the presence of osteophytes (r=0.32), and the intensity of the pain on the VAS correlated with the presence of joint osteophytes (r=0.46) and with the elevation of the intercondylar eminence (r=0.32). The other disorders on the x-ray image did not correlate with the pain. Positive correlations were identified between the presence of oedema (r=0.57) and instability (r=0.39), and the presence of lesions in the patellofemoral joint. The patients’ disability in everyday activities (WOMAC) showed a negative correlation with the width of the joint spaces (r<-0.34). However, no correlations were observed between the remaining x-ray lesions and the WOMAC index. Conclusions: Only a small number of subjects showed a correlation indicating an interdependency between the painful sensations and the degree of disability versus the progression of radiographic lesions. Among the KOA risk factors, it is worth noting the presence of obesity which, in these studies, affected more than half of the female patients.

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48

Dewez, T. J. B., D. Girardeau-Montaut, C. Allanic y J. Rohmer. "FACETS : A CLOUDCOMPARE PLUGIN TO EXTRACT GEOLOGICAL PLANES FROM UNSTRUCTURED 3D POINT CLOUDS". ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B5 (16 de junio de 2016): 799–804. http://dx.doi.org/10.5194/isprs-archives-xli-b5-799-2016.

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Geological planar facets (stratification, fault, joint…) are key features to unravel the tectonic history of rock outcrop or appreciate the stability of a hazardous rock cliff. Measuring their spatial attitude (dip and strike) is generally performed by hand with a compass/clinometer, which is time consuming, requires some degree of censoring (i.e. refusing to measure some features judged unimportant at the time), is not always possible for fractures higher up on the outcrop and is somewhat hazardous. 3D virtual geological outcrop hold the potential to alleviate these issues. Efficiently segmenting massive 3D point clouds into individual planar facets, inside a convenient software environment was lacking. FACETS is a dedicated plugin within CloudCompare v2.6.2 (<a href="http://cloudcompare.org/"target="_blank">http://cloudcompare.org/</a> ) implemented to perform planar facet extraction, calculate their dip and dip direction (i.e. azimuth of steepest decent) and report the extracted data in interactive stereograms. Two algorithms perform the segmentation: Kd-Tree and Fast Marching. Both divide the point cloud into sub-cells, then compute elementary planar objects and aggregate them progressively according to a planeity threshold into polygons. The boundaries of the polygons are adjusted around segmented points with a tension parameter, and the facet polygons can be exported as 3D polygon shapefiles towards third party GIS software or simply as ASCII comma separated files. One of the great features of FACETS is the capability to explore planar objects but also 3D points with normals with the stereogram tool. Poles can be readily displayed, queried and manually segmented interactively. The plugin blends seamlessly into CloudCompare to leverage all its other 3D point cloud manipulation features. A demonstration of the tool is presented to illustrate these different features. While designed for geological applications, FACETS could be more widely applied to any planar objects.

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49

Dewez, T. J. B., D. Girardeau-Montaut, C. Allanic y J. Rohmer. "FACETS : A CLOUDCOMPARE PLUGIN TO EXTRACT GEOLOGICAL PLANES FROM UNSTRUCTURED 3D POINT CLOUDS". ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B5 (16 de junio de 2016): 799–804. http://dx.doi.org/10.5194/isprsarchives-xli-b5-799-2016.

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Geological planar facets (stratification, fault, joint…) are key features to unravel the tectonic history of rock outcrop or appreciate the stability of a hazardous rock cliff. Measuring their spatial attitude (dip and strike) is generally performed by hand with a compass/clinometer, which is time consuming, requires some degree of censoring (i.e. refusing to measure some features judged unimportant at the time), is not always possible for fractures higher up on the outcrop and is somewhat hazardous. 3D virtual geological outcrop hold the potential to alleviate these issues. Efficiently segmenting massive 3D point clouds into individual planar facets, inside a convenient software environment was lacking. FACETS is a dedicated plugin within CloudCompare v2.6.2 (<a href="http://cloudcompare.org/"target="_blank">http://cloudcompare.org/</a> ) implemented to perform planar facet extraction, calculate their dip and dip direction (i.e. azimuth of steepest decent) and report the extracted data in interactive stereograms. Two algorithms perform the segmentation: Kd-Tree and Fast Marching. Both divide the point cloud into sub-cells, then compute elementary planar objects and aggregate them progressively according to a planeity threshold into polygons. The boundaries of the polygons are adjusted around segmented points with a tension parameter, and the facet polygons can be exported as 3D polygon shapefiles towards third party GIS software or simply as ASCII comma separated files. One of the great features of FACETS is the capability to explore planar objects but also 3D points with normals with the stereogram tool. Poles can be readily displayed, queried and manually segmented interactively. The plugin blends seamlessly into CloudCompare to leverage all its other 3D point cloud manipulation features. A demonstration of the tool is presented to illustrate these different features. While designed for geological applications, FACETS could be more widely applied to any planar objects.

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50

Viswanathan, Vidya Sankar, Nathaniel Braman, Priyanka Reddy, Siddharth Kunte, Jame Abraham, Alberto J. Montero y Anant Madabhushi. "Abstract P5-13-27: Post-treatment vascularity and vessel shape are associated with survival and response to CDK4/6 inhibitors in hormone receptor-positive metastatic breast cancer (MBC)". Cancer Research 82, n.º 4_Supplement (15 de febrero de 2022): P5–13–27—P5–13–27. http://dx.doi.org/10.1158/1538-7445.sabcs21-p5-13-27.

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Abstract Background: CDK 4/6 inhibitors (CDKI) with Endocrine therapy (ET) is mainstay treatment for hormone receptor-positive (HR+) Her2- metastatic breast cancer (MBC). Despite excellent efficacy, most patients develop resistance to CDKI limiting its utility. CDK4/6 are thought to act by upregulating VEGF causing tortuous angiogenesis and promoting cancer progression. Recent studies have shown aggressive tumors possess a higher density and tortuous vasculature. In this study, we evaluated if vascular radiomic features computationally extracted from liver CT scans pre- and post CDKI treatment could predict patient survival and treatment response. Method: From a registry of 350 patients on treatment with CDKI at institution 1(S1), 51 pts with HR+, Her2-, MBC patients with evidence of liver mets and disease progression (PFS) data were identified. 30 pts discontinued treatment due to progression or death, with a median time to progression of 195 days. Pre-treatment and first post-treatment CT exams were analyzed from 25 and 34 patients, respectively. Median time between scans was 128 days. To validate the prognostic value of our signature, a cohort of 29 patients with available OS data was identified from institution 2 (S2). A publicly available pre-trained deep learning model was applied to isolate liver metastases and vessels. Next, fast marching algorithm was applied to reduce vessels to their centerlines and divide the vasculature into constituent branches. 7 quantitative metrics were computed measuring vascularity of metastases and 3-D shape of hepatic vessels. First, the number (f1) and percentage (f2) of hepatic vessels arising from the tumor were computed. Vessel tortuosity - measuring the degree of twisting across a vessel - was computed separately for each branch. The mean (f3), standard deviation (f4), maximum (f5), skewness (f6), and kurtosis (f7) tortuosity values were calculated to summarize these measurements at patient level. The features were individually assessed at pre- and post-treatment for association with PFS at S1 in univariable Cox proportional hazards models. Features found to be associated in S1 were evaluated for association with OS in S2. Results: On the initial post-treatment scan, features of both tumor vascularization (f6 - HR=1.115 [1.039-1.196]; f7 - HR=10.646 [2.539-44.641]), as well as two features of vessel tortuosity (f3 - HR=0.011 [0.001-0.199]; f4 - HR=0.545 [0.313-0.949]) were significantly associated with PFS. Both tortuosity features were also significantly associated with OS in S2 (f3 - HR=0.085 [0.009-0.780]; f4 - HR=0.331 [0.130-0.842]). In addition the percentage (f7 - HR=6.445 [2.001-20.753]]),of vessels feeding the lesions was also significant in S2 while the number (f6 - HR=1.070 [0.966-1.184]), of vessels was not. No vessel metrics from the pre-treatment baseline exam were significantly associated with OS. Conclusions: Radiomic analysis of tumor vascularity and vessel tortuosity on CT scans post-CDK treatment was associated with patient survival and treatment response. Table 1.Association of vessel features with PFS in Institution 1(S1)and OS in Institution 2(S2)S1- Pretreatment CT (n=25)S1 - Post-Treatment CT (n=34)S2 - Post-treatment CT - Validation (n=29)f1Tortuosity - Mean0.9912702470.852294696–f2Tortuosity - St. Dev0.7563942230.273115373–f3Tortuosity - Max0.1387051870.0022517550.02931473f4Tortuosity - Skewness0.254463710.0318270370.02022882f5Tortuosity - Kurtosis0.3058266760.108967601–f6Number of vessels feeding lesions0.419096650.0025747910.19306052f7Percentage of vessels feeding lesions0.0517942660.0012205950.00179103 Citation Format: Vidya Sankar Viswanathan, Nathaniel Braman, Priyanka Reddy, Siddharth Kunte, Jame Abraham, Alberto J Montero, Anant Madabhushi. Post-treatment vascularity and vessel shape are associated with survival and response to CDK4/6 inhibitors in hormone receptor-positive metastatic breast cancer (MBC) [abstract]. In: Proceedings of the 2021 San Antonio Breast Cancer Symposium; 2021 Dec 7-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2022;82(4 Suppl):Abstract nr P5-13-27.

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