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Artykuły w czasopismach na temat „Double stretching”

Autor: Grafiati

Data publikacji: 7 grudnia 2024

Data aktualizacji: 31 lipca 2025

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1

Patterson, Richard F. "Analogues of some Tauberian theorems for stretchings." International Journal of Mathematics and Mathematical Sciences 27, no. 2 (2001): 99–109. http://dx.doi.org/10.1155/s0161171201003933.

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We investigate the effect of four-dimensional matrix transformation on new classes of double sequences. Stretchings of a double sequence is defined, and this definition is used to present a four-dimensional analogue of D. Dawson's copy theorem for stretching of a double sequence. In addition, the multidimensional analogue of D. Dawson's copy theorem is used to characterize convergent double sequences using stretchings.

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2

Hamid, Sami, and Richard Patterson. "Stretching Double Sequences by ”Blocks”." Filomat 38, no. 32 (2024): 11247–57. https://doi.org/10.2298/fil2432247h.

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This paper introduces the ?Stretching by Blocks? method, a new approach for stretching double sequences that extends Patterson?s method by allowing block repetition. We prove several theorems, including the Extended Copy Theorem and the preservation of Pringsheim limit points under RH-regular matrix transformations.

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3

Mathew-Fenn, Rebecca S., Rhiju Das, Timothy D. Fenn, Michael Schneiders, and Pehr A. B. Harbury. "Response to Comment on “Remeasuring the Double Helix”." Science 325, no. 5940 (2009): 538.3–538. http://dx.doi.org/10.1126/science.1168876.

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We measured the mean and variance of end-to-end length in short DNA fragments in solution and reported evidence of DNA stretching that is cooperative over more than two turns of the double helix. Becker and Everaers suggest that the structural fluctuations we observed arise from bending motions of the DNA, rather than stretching. We present three experimental tests of this bending-based explanation.

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4

Hennig, D., and J. F. R. Archilla. "Stretching and relaxation dynamics in double stranded DNA." Physica A: Statistical Mechanics and its Applications 331, no. 3-4 (2004): 579–601. http://dx.doi.org/10.1016/j.physa.2003.09.053.

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5

Scurtu, Adrian, Dorina Ticoș, Maria Luiza Mitu, Nicoleta Udrea, and Cătălin Mihai Ticoș. "Stretching and Compression of Double Dusty Plasma Vortex." Crystals 13, no. 1 (2023): 76. http://dx.doi.org/10.3390/cryst13010076.

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The interest in complex plasmas is increasing due to the multiple applications they target (astrophysics, plasma fusion, industry, etc.). A crystal with two vortexes made of spherical microparticles that levitates in an rf plasma interacts with a gas jet. The crystal is displaced in the jet propagation direction due to the neutral pushing force, maintaining its vortex structure. The crystal shift also involves a change of its shape, especially at the level of the two vortexes. One vortex is stretched, and the other one is compressed. During the three phases of modification of the shape of the

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6

Becker, Nils B., and Ralf Everaers. "Comment on “Remeasuring the Double Helix”." Science 325, no. 5940 (2009): 538.2–538. http://dx.doi.org/10.1126/science.1168786.

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Mathew-Fenn et al. (Reports, 17 October 2008, p. 446) reported unexpected distance fluctuations in short end-labeled DNA constructs and interpreted them as evidence for cooperative DNA stretching modes. We show that when accounting for a subtle linker leverage effect, their data can be understood within standard noncooperative DNA elasticity.

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7

Zhou, Chengbo, Huilong Guo, Jingqing Li, et al. "Temperature dependence of poly(lactic acid) mechanical properties." RSC Advances 6, no. 114 (2016): 113762–72. http://dx.doi.org/10.1039/c6ra23610c.

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8

Rajalaxmi, V., S. Vasanthi, S. Sathya, et al. "Efficacy of Dynamic VS Closed Kinematic Exercise Combined with Stretching in Adhesive Capsulitis- a double blinded randomized controlled trial." Bangladesh Journal of Medical Science 20, no. 2 (2021): 368–73. http://dx.doi.org/10.3329/bjms.v20i2.51550.

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Objective: To compare the efficacy of Dynamic exercise and Closed kinematic exercise combined with stretching in adhesive capsulitis. Background of the study: Adhesive capsulitis is a condition characterized by stiffness and pain in the shoulder joint. It is a painful and disabling disorder of unclear cause in which the shoulder capsule, the connective tissue surrounding the shoulder becomes inflamed and stiff, restricting ROM and causing chronic pain. Methodology: This was an experimental study design with Pre-Post test. 30 samples were selected from 45 volunteers based on the inc

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9

Marin-Gonzalez, Alberto, J. G. Vilhena, Ruben Perez, and Fernando Moreno-Herrero. "Understanding the mechanical response of double-stranded DNA and RNA under constant stretching forces using all-atom molecular dynamics." Proceedings of the National Academy of Sciences 114, no. 27 (2017): 7049–54. http://dx.doi.org/10.1073/pnas.1705642114.

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Multiple biological processes involve the stretching of nucleic acids (NAs). Stretching forces induce local changes in the molecule structure, inhibiting or promoting the binding of proteins, which ultimately affects their functionality. Understanding how a force induces changes in the structure of NAs at the atomic level is a challenge. Here, we use all-atom, microsecond-long molecular dynamics to simulate the structure of dsDNA and dsRNA subjected to stretching forces up to 20 pN. We determine all of the elastic constants of dsDNA and dsRNA and provide an explanation for three striking diffe

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10

Liu, S., D. Baugh, K. Motobayashi, et al. "Anharmonicity in a double hydrogen transfer reaction studied in a single porphycene molecule on a Cu(110) surface." Physical Chemistry Chemical Physics 20, no. 17 (2018): 12112–19. http://dx.doi.org/10.1039/c8cp00178b.

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A pronounced anharmonicity of the N–H stretching mode in porphycene on Cu(110) is observed in the STM action and conductance spectra. DFT calculations find a strong intermode coupling of the N–H stretching with an in-plane bending mode within porphycene on the surface.

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11

Sastry, M. I. S., and Surjit Singh. "Raman spectral studies of solutions of alkali metal perchlorates in dimethyl sulfoxide and water." Canadian Journal of Chemistry 63, no. 7 (1985): 1351–56. http://dx.doi.org/10.1139/v85-231.

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Raman spectra of solutions of alkali metal perchlorates in dimethyl sulfoxide (DMSO) in the Cl—O, C—S, and S=O stretching regions, as well as of perchlorates in aqueous solutions in the Cl—O stretching region are reported. The results are discussed in terms of half-bandwidths, relative intensities, and depolarization ratios. For H2O the half-bandwidth of the Cl—O stretching band at ~935 cm−1 is almost double the value in DMSO solutions. Solutions of perchlorates in DMSO show two symmetric bands in the Cl—O stretching region, whereas in aqueous solutions only one band is observed. The half-band

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12

Wang, Deqiang, Winston Timp, Ji Wook Shim, et al. "Discriminating Bases by Stretching Double-Stranded DNA in a Nanopore." Biophysical Journal 98, no. 3 (2010): 599a. http://dx.doi.org/10.1016/j.bpj.2009.12.3259.

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13

Akbar, Noreen, z. Khan, S. Nadeem, and W. khan. "Double-diffusive natural convective boundary-layer flow of a nanofluid over a stretching sheet with magnetic field." International Journal of Numerical Methods for Heat & Fluid Flow 26, no. 1 (2016): 108–21. http://dx.doi.org/10.1108/hff-01-2015-0019.

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Purpose – The purpose of this paper, is to study the MHD double-diffusive natural convection of a nanofluid over a linearly stretching sheet using the Buongiorno model. Design/methodology/approach – The transport equations are transformed into coupled similarity equations. The numerical self-similar solutions are compared with the literature for the special case of pure fluid flow and found to be in good agreement. Graphical results are presented to illustrate the effects of various fluid flow, heat transfer and nano concentration parameters for both assisting and opposing flows. Findings – It

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14

Kutsenko, O. G., A. G. Kutsenko, and L. V. Kharytonova. "Study of perforated plates stretching by finite element method." Bulletin of Taras Shevchenko National University of Kyiv. Series: Physics and Mathematics, no. 3 (2021): 55–58. http://dx.doi.org/10.17721/1812-5409.2021/3.8.

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The problem of axial stretching of a plate with a double-periodic system of round holes arranged in a checkerboard pattern is considered. The specified problem is reduced to elasticity second problem for one period of plate, which was solved by the finite element method. As a result, the reduced elastic characteristics of the equivalent homogeneous orthotropic plate are found. The analysis of their behavior depending on dimensionless geometrical parameters is carried out. The area of variation of the geometric parameters was divided into two subareas. The behavior of the equivalent elastic cha

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15

Penderghest, Caroline E., Iris F. Kimura, and Dawn T. Gulick. "Double-Blind Clinical Efficacy Study of Pulsed Phonophoresis on Perceived Pain Associated with Symptomatic Tendinitis." Journal of Sport Rehabilitation 7, no. 1 (1998): 9–19. http://dx.doi.org/10.1123/jsr.7.1.9.

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The purpose of this study was to determine the clinical efficacy of dexametha-sone-lidocaine (DX-L) phonophoresis on perceived pain associated with symptomatic tendinitis. Twenty-four subjects were randomly assigned to a DX-L or placebo phoresis group. All subjects received strengthening, stretching, and cryotherapy. Five double-blind sessions were administered over a 5- to 10-day period, with 24 to 48 hr between sessions. Perceived pain was quantified using a visual perceived pain scale (VPPS) and a punctate tenderness gauge (PTG). Data were collected before stretching, strengthening, and DX-

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16

Lim, Chi-Su, Dae-Sung Jang, Sang-Min Yu, and Jae-Jun Lee. "Analysis of the Properties of Modified Asphalt Binder by FTIR Method." Materials 15, no. 16 (2022): 5743. http://dx.doi.org/10.3390/ma15165743.

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The usage of modified asphalt binder in road pavements has been increasing in the past few decades. Therefore, quality control and understanding of modified asphalt binders have become an important issue. This study was conducted as a part of a larger study on the efficient management of these modified asphalt binders by evaluating the characteristics of asphalt binders mixed with styrene–butadiene–styrene (SBS), ethylene-vinyl acetate (EVA), and wax-based warm-mix additives using Fourier transform infrared (FTIR) analysis. For original asphalt binders modified with SBS, response wavenumbers w

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17

Jin, Seon-Mi, Jun Ho Hwang, Ke Wang, et al. "Symmetry breaking of Au nanospheres confined in 1D nanocylinders: exploring helical assembly by 3D transmission electron microscopy." Materials Chemistry Frontiers 4, no. 10 (2020): 3032–39. http://dx.doi.org/10.1039/d0qm00374c.

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The hybrid assemblies of polystyrene-tethered gold NPs are controlled by polymer chain stretching in a cylindrical confinement. The zigzag NP arrays observed in 2D TEM can be revealed into double- or triple-stranded helical NP arrays using 3D TEM.

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18

Lee, Seung-Woong, and Jung-Hoon Lee. "Effects of Proprioceptive Neuromuscular Facilitation Stretching and Kinesiology Taping on Pelvic Compensation During Double-Knee Extension." Journal of Human Kinetics 49, no. 1 (2015): 55–64. http://dx.doi.org/10.1515/hukin-2015-0108.

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Abstract Shortened hamstrings are likely to restrict the anterior pelvic tilt and induce a slumped posture due to the posterior pelvic tilt. This study was conducted to compare the effects of proprioceptive neuromuscular facilitation (PNF) stretching and modified anterior pelvic tilt taping (APTT) on hamstring shortness-associated pelvic compensation while executing seated double-knee extension. Male college students (28 healthy young adults; mean age: 21.4 ± 2.1 years) with hamstring shortness were recruited as study subjects and randomly assigned to either the PNF stretching group (control g

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19

Kamble, Harshad, Raja Vadivelu, Mathew Barton, et al. "An Electromagnetically Actuated Double-Sided Cell-Stretching Device for Mechanobiology Research." Micromachines 8, no. 8 (2017): 256. http://dx.doi.org/10.3390/mi8080256.

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20

Osman, Mohd Junaedy, Wan Md Zin Wan Yunus, Keat Khim Ong, et al. "Surface Modification of Multi-Walled Carbon Nanotube Using Double-Chained Quartenary Ammonium Bromide." Key Engineering Materials 701 (July 2016): 18–22. http://dx.doi.org/10.4028/www.scientific.net/kem.701.18.

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Modification of multi-walled carbon nanotube (MWCNT) plays an important role to produce MWCNT crossbreeds that may be useful for exploration of new materials. In this report, characterization of dimethyl dioctadecylammonium bromide (DDOAB) modified multi-walled carbon nanotube (Mo-MWCNT) using Fourier Transform Infrared (FTIR) spectroscopy and Thermogravimetric analysis (TGA) and X-ray diffraction (XRD) is described. FTIR shows the presence of both aliphatic (CH stretching and CH bending) and ammonium (CN stretching) groups from DDOAB and the existence of C=C aromatic functional group from the

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21

Phimmasene, Soukvilay, Kittipong Tonmitra, Apirat Siritaratiwat, and Arkom Kaewrawang. "Environmental Study on the Behavior of Water Drops with Circular Resin Insulator Material under DC Electric Field Stress." Advanced Materials Research 979 (June 2014): 111–14. http://dx.doi.org/10.4028/www.scientific.net/amr.979.111.

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The influence of damages on the insulator’s surface in the distribution system is investigated in this paper. The circular resin is used as the specimen under high voltage direct current (HVDC) between the electrodes with diameter of 2 mm and distance between both electrodes are 35 mm. There are three cases in the experiment and it was tested in environmental condition under dry surface, single droplet and double droplets. The HVDC had been applied to the electrodes, the level of applied were 5, 10, 15, 20, 25, 30 and 35 kV. The results show that the arc occurs rapidly in the case of single an

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22

Castellote-Caballero, Yolanda, Maríe C. Valenza, Emilio J. Puentedura, César Fernández-de-las-Peñas, and Francisco Alburquerque-Sendín. "Immediate Effects of Neurodynamic Sliding versus Muscle Stretching on Hamstring Flexibility in Subjects with Short Hamstring Syndrome." Journal of Sports Medicine 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/127471.

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Background. Hamstring injuries continue to affect active individuals and although inadequate muscle extensibility remains a commonly accepted factor, little is known about the most effective method to improve flexibility.Purpose. To determine if an isolated neurodynamic sciatic sliding technique would improve hamstring flexibility to a greater degree than stretching or a placebo intervention in asymptomatic subjects with short hamstring syndrome (SHS).Study Design. Randomized double-blinded controlled trial.Methods. One hundred and twenty subjects with SHS were randomized to 1 of 3 groups: neu

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23

Li, Zhenlan, Tian Wang, Mengyue Shen, et al. "Comparison of Wuqinxi Qigong with Stretching on Single- and Dual-Task Gait, Motor Symptoms and Quality of Life in Parkinson’s Disease: A Preliminary Randomized Control Study." International Journal of Environmental Research and Public Health 19, no. 13 (2022): 8042. http://dx.doi.org/10.3390/ijerph19138042.

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The objective of this study was to investigate the therapeutic effect of Wuqinxi Qigong vs. stretching on single- and dual-task gait, motor symptoms, and quality of life in people with mild and moderate Parkinson’s disease (PD). This single-blind, randomized control trial included 40 participants with idiopathic PD who were randomized into the Wuqinxi Qigong (WQ) group or stretching group. Participants completed 12 weeks (two sessions/week) of intervention. The primary outcomes were gait parameters when performing single-task (comfortable pace) and dual-task (obstacle crossing, serial-3 subtra

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24

Hamed, G. R., and M. Y. Huang. "Tensile and Tear Behavior of Anisotropic Double Networks of a Black-Filled Natural Rubber Vulcanizate." Rubber Chemistry and Technology 71, no. 5 (1998): 846–60. http://dx.doi.org/10.5254/1.3538513.

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Abstract Double networks of a black-filled natural rubber composition have been prepared by partially curing a sheet, stretching it, and then completing cure. Upon release, a double network retracts to a residual extension ratio, αr. Samples cut perpendicular to the stretch direction have stress—strain responses like the isotropic single network, while parallel samples have enhanced stiffness and tensile strength, and reduced extensibility. Tensile strength is rather weakly dependent on αr. Tear strengths of the double networks, determined using edge-cut strip specimens, exceed that of the sin

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25

MATSUO, YASUTAKA, KUNIHARU IJIRO, and MASATSUGU SHIMOMURA. "STRETCHING OF SINGLE DNA MOLECULES BY LANGMUIR–BLODGETT METHOD." International Journal of Nanoscience 01, no. 05n06 (2002): 695–99. http://dx.doi.org/10.1142/s0219581x02000917.

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We propose a new method that double-stranded DNA molecules can be stretched and immobilized on the clean glass substrate by using a lipid monolayer at the air–water interface. This method is based on the substrate lifting of Langmuir–Blodgett method. We observed fluorescence images of polyion complex films with a scanning near-field optical microscope (SNOM). As a result, straight fluorescent lines aligned parallel to the lifting direction were observed and it was considered that isolated single DNA molecules were extended to align on the substrate. This method is applied to various DNA molecu

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26

Hamed, G. R., and K. Umetsu. "Gum and Black-Filled Double Networks of cis-1,4-Polyisoprene Crosslinked with Sulfur Donors: Part I. Tensile Properties." Rubber Chemistry and Technology 78, no. 1 (2005): 130–42. http://dx.doi.org/10.5254/1.3547866.

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Abstract Gum and black-filled double networks of cis-1,4 polyisoprene, crosslinked with sulfur donors, have been prepared by first partially curing sheets, then stretching them and completing cure. Double networks are anisotropic and exhibit a residual extension ratio λr, which is higher for filled compared to gum samples. Additionally, double networks of filled specimens have higher anisotropy than gum counterparts, presumably because carbon black promotes chain alignment and strain-crystallization. Tensile specimens cut parallel to the stretch direction are stiffer, less extensible, and some

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27

Sulalitha Priyankara, K. G. D., Sanjeeva Balasuriya, and Erik Bollt. "Quantifying the Role of Folding in Nonautonomous Flows: The Unsteady Double-Gyre." International Journal of Bifurcation and Chaos 27, no. 10 (2017): 1750156. http://dx.doi.org/10.1142/s0218127417501565.

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We analyze chaos in the well-known nonautonomous Double-Gyre system. A key focus is on folding, which is possibly the less-studied aspect of the “stretching+folding=chaos” mantra of chaotic dynamics. Despite the Double-Gyre not having the classical homoclinic structure for the usage of the Smale–Birkhoff theorem to establish chaos, we use the concept of folding to prove the existence of an embedded horseshoe map. We also show how curvature of manifolds can be used to identify fold points in the Double-Gyre. This method is applicable to general nonautonomous flows in two dimensions, defined for

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28

Norzawary, N. H. A., N. Bachok, F. M. Ali, and N. A. A. Rahmin. "Double solutions and stability analysis of slip flow past a stretching/shrinking sheet in a carbon nanotube." Mathematical Modeling and Computing 9, no. 4 (2022): 816–24. http://dx.doi.org/10.23939/mmc2022.04.816.

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A stagnation point flow past a stretching/shrinking surface in carbon nanotubes (CNTs) with slip effects is investigated in this paper. Applying transformations of similarity, the governing partial differential equations are modified to the nonlinear ordinary differential equations. Afterward, they are numerically solved in Matlab by the bvp4c solver. The single-wall CNTs and multi-wall CNTs are used, including water as a base fluid. The effects of the flow parameters are investigated, shown in the form of graphs, and physically evaluated for the dimensionless velocity, temperature, skin frict

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29

Dong, Ruixin, Xunling Yan, and Shenggang Liu. "The salt dependence of the stretching transition of double-stranded DNA molecules." Journal of Physics A: Mathematical and General 37, no. 18 (2004): 4977–84. http://dx.doi.org/10.1088/0305-4470/37/18/005.

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Wang, Feng, Yu Hai Guo, Hua Peng Zhang, and Hong Yan Tang. "Surface Refining Treatment of Filter Media." Advanced Materials Research 441 (January 2012): 593–97. http://dx.doi.org/10.4028/www.scientific.net/amr.441.593.

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In order to improve filtration efficiency and precision of the filter media, two methods of surface refining treatment were presented, which were the co-stretching PTFE micro-porous membrane and foam coating on nonwoven filter media. During the process of co-stretching, the pore diameters and thickness of the membrane were different on the surface. The double-layer PTFE base sheet was simultaneously stretched, which induced the reduction of pore sizes and uniform thickness of the filter media. After foam coating, the pore sizes of nonwoven filter media were reduced to under 10 μm because of th

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31

Wu, Heng, Yani Zhang, Wenyu Yuan, et al. "Highly flexible, foldable and stretchable Ni–Co layered double hydroxide/polyaniline/bacterial cellulose electrodes for high-performance all-solid-state supercapacitors." Journal of Materials Chemistry A 6, no. 34 (2018): 16617–26. http://dx.doi.org/10.1039/c8ta05673k.

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Mai, Thanh-Tam, Takahiro Matsuda, Tasuku Nakajima, Jian Ping Gong, and Kenji Urayama. "Damage cross-effect and anisotropy in tough double network hydrogels revealed by biaxial stretching." Soft Matter 15, no. 18 (2019): 3719–32. http://dx.doi.org/10.1039/c9sm00409b.

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Akbar, Noreen Sher, C. M. Khalique, and Z. H. Khan. "Double Diffusion Effects on Magnetohydrodynamic Non-Newtonian Fluid Nanoparticles." Journal of Computational and Theoretical Nanoscience 14, no. 1 (2017): 694–703. http://dx.doi.org/10.1166/jctn.2017.6260.

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In the present article, the double-diffusive natural convection of a micropolar nanofluid over a linearly stretching sheet is discussed. The flow equations are transformed into ordinary differential equations using similarity transformations. The numerical solutions are computed using shooting technique and compared with the literature for the special case of pure fluid flow and found to be in good agreement. Graphical results are presented to illustrate the effects of various fluid flow parameters on velocity, heat transfer, nanoparticle volume fraction, salt concentration, Nusselt number, Sh

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34

Laksee, S., W. Chitaka, K. Laohhasurayotin, and C. Suwanchawalit. "Fabrication of zinc-aluminum layer double hydroxide thin films and their anionic adsorption performance." Digest Journal of Nanomaterials and Biostructures 17, no. 1 (2022): 127–36. http://dx.doi.org/10.15251/djnb.2022.171.127.

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Layered double hydroxides (LDHs) are also known as hydrotalcite-like compounds or anionic clays. In this work, ZnAl-LDH films were prepared on aluminium (Al) plates by a hydrothermal technique using zinc nitrate solution as the precursors. ZnAl-LDHs films were characterized by SEM, EDX, XRD and FT-IR. The SEM analysis revealed that the ZnAl-LDH films with hierarchical nanoarchitectures on the surface of Al plates. EDX mapping and elemental analysis also showed that Zn, Al, and O dispersed uniformly on the aluminium substrates. XRD results were used to confirm the presence of ZnAl-LDH films as

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Oh, Sung Joon, and Jack L. Koenig. "Studies of Peroxide Curing of Polybutadiene/Zinc Diacrylate Blends by Fast FT-IR Imaging." Rubber Chemistry and Technology 73, no. 1 (2000): 74–79. http://dx.doi.org/10.5254/1.3547581.

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Abstract Fast Fourier transform infrared (FT-IR) imaging measurements of cured polybutadiene(PBD)/zinc diacrylate(ZDA) showed a heterogeneous distribution of zinc diacrylate. The phase structures were classified as PBD-rich and ZDA-rich domains. Upon curing, the increase in the infrared aliphatic CH stretching mode at 2916 cm−1 and the decrease in unsaturated CH stretching mode at 3075 cm−1 were observed as the single bond crosslinks were formed at the expense of double bonds. In a solvent diffusion experiment with toluene of these cured blends, it was observed that more solvent is imbibed int

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Rudikov, S. I., V. Yu Tsviatkou, and A. P. Shkadarevich. "Dynamic Range Compression of Infrared Images Based on Histogram Equalization with Edge Inversion." Doklady BGUIR 22, no. 1 (2024): 108–15. http://dx.doi.org/10.35596/1729-7648-2024-22-1-108-115.

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The problem of compression of the dynamic range of infrared images is considered. To improve the quality of tone mapping of infrared images when their dynamic range is compressed and to simplify the control over the reproduction characteristics of infrared images, a dynamic range conversion algorithm based on adaptive histogram equalization with edge inversion is proposed. The essence of the algorithm consists in double reduction of the dynamic range of the infrared image with intermediate stretching, compression and overlapping of edges with inversion. To select the brightness interval and th

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Merkulov, B. H., and O. G. Sokolov. "Replacement of post-traumatic skin defects in children by tissue stretching with the use of endo-expanders." N.N. Priorov Journal of Traumatology and Orthopedics 1, no. 2 (2022): 9–13. http://dx.doi.org/10.17816/vto64662.

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In the clinic for pediatric trauma, CITO, replacement of post-traumatic skin defects by tissue stretching was performed in 11 patients aged 4 to 14 years. 16 expanders were implanted (5 patients with two expanders). Implantation was performed on the lower leg (5 patients), in the projection of the knee joint (2), on the hand, thigh, scalp and in Filatov's stem (one patient each). The area of the replaced cicatricial defects was 20 cm2 on the hand, up to 135 cm2 on the lower leg, and 160 cm2 on the scalp. Preference will be given to double-expander stretching with expanders located on opposit

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Weng, Yih-Ming, Ru-Hui Weng, Chin-Yin Tzeng, and Wenlung Chen. "Structural Analysis of Triacylglycerols and Edible Oils by Near-Infrared Fourier Transform Raman Spectroscopy." Applied Spectroscopy 57, no. 4 (2003): 413–18. http://dx.doi.org/10.1366/00037020360625952.

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Fourier transform Raman spectroscopy was employed for structural analysis of triacylglycerols and edible oils. Raman spectra sensitively reflected structural changes in oils. Even slight structural fluctuation between triacylglycerols and free fatty acids led to obvious differences in Raman bands as shown by C–O–C stretching from 800 to 1000 cm−1 and the band at 1742 cm−1. Structural difference in geometric isomers was easily distinguished as proved by C = C stretching at 1655 cm−1 ( cis) shifting to 1668 cm−1 ( trans) and by =C–H in-plane bending at 1266 cm−1 in cis disappearing in the trans

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Sadaoka, Kana, and Yoshitaka Saga. "Effects of the central metal on stretching vibrational bands of the peripheral carbonyl moieties in formylated chlorophyll derivatives studied by Fourier-transform infrared spectroscopy." Journal of Porphyrins and Phthalocyanines 18, no. 06 (2014): 506–12. http://dx.doi.org/10.1142/s1088424614500242.

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The vibrational properties of metal complexes of monoformylated and diformylated chlorophyll derivatives were compared with those of the corresponding free-base chlorins to unravel the effects of the central metal on the carbonyl stretching vibration modes of the peripheral oxygen functional groups in the chlorin macrocycle by means of FTIR spectroscopy. The 3- C = O stretching vibrational bands of a 3-formyl group were shifted to lower wavenumbers by insertion of Zn and Cu into the center of the 3-formyl free-base chlorin. In contrast, the 7- and 8- C = O stretching vibrational bands of the f

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Vialleron, Thomas, Arnaud Delafontaine, Sebastien Ditcharles, Paul Fourcade, and Eric Yiou. "Effects of stretching exercises on human gait: a systematic review and meta-analysis." F1000Research 9 (August 13, 2020): 984. http://dx.doi.org/10.12688/f1000research.25570.1.

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Background: Stretching is commonly used in physical therapy as a rehabilitation tool to improve range of motion and motor function. However, is stretching an efficient method to improve gait, and if so, for which patient category? Methods: A systematic review of randomized and non-randomized controlled trials with meta-analysis was conducted using relevant databases. Every patient category and every type of stretching programs were included without multicomponent programs. Data were meta-analysed where possible. Estimates of effect sizes (reported as standard mean difference (SMD)) with their

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Vialleron, Thomas, Arnaud Delafontaine, Sebastien Ditcharles, Paul Fourcade, and Eric Yiou. "Effects of stretching exercises on human gait: a systematic review and meta-analysis." F1000Research 9 (October 30, 2020): 984. http://dx.doi.org/10.12688/f1000research.25570.2.

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Background: Stretching is commonly used in physical therapy as a rehabilitation tool to improve range of motion and motor function. However, is stretching an efficient method to improve gait, and if so, for which patient category? Methods: A systematic review of randomized and non-randomized controlled trials with meta-analysis was conducted using relevant databases. Every patient category and every type of stretching programs were included without multicomponent programs. Data were meta-analysed where possible. Estimates of effect sizes (reported as standard mean difference (SMD)) with their

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Semchenko, Igor V., Ivan S. Mikhalka, Andrey L. Samofalov, and Sergei A. Khakhomov. "Controlling the Shape of a Double DNA-like Helix as an Element of Metamaterials." Photonics 11, no. 9 (2024): 788. http://dx.doi.org/10.3390/photonics11090788.

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The aim of the article is to study the forces arising in a conductive DNA-like double helix in the field of a microwave electromagnetic wave. These forces must be considered for both actual DNA molecules and double DNA-like helices that serve as components of metamaterials and metasurfaces. The helix comprises twenty-and-a-half turns and has geometric parameters proportional to the size of an actual DNA molecule. The forces acting on the strands of a double helix, both in the central region and at the edges of the helix, are investigated. It has been demonstrated that the aforementioned forces

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Wu, Yao Peng. "Study on Bi-Stable Behaviors of Double-Layered Cylindrical Shell." Advanced Materials Research 243-249 (May 2011): 5981–84. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.5981.

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Bi-stable structure can be stable in both its extended and coiled forms. As a novel deployable structure, it shows a broad application prospect in the field of aeronautics and civil engineering, etc. Considered two cylindrical shells having the same flattening configurations, they can be closely bound together by applying external forces. And the corresponding double-layered cylindrical shell model is proposed. Expressions for the bending and stretching strain energies of the cylindrical shells are presented. Calculations show that total strain energy has two local minimal values, which reveal

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Afanasyev, Alexander Y., and Alexey V. Onufriev. "Stretching of long double-stranded DNA and RNA described by the same model." Biophysical Journal 121, no. 3 (2022): 65a. http://dx.doi.org/10.1016/j.bpj.2021.11.2391.

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Srinivasacharya, Darbhashayanam, and Pashikanti Jagadeeshwar. "Flow over an Exponentially Stretching Sheet with Double Dispersion and Convective Thermal Condition." Mathematical Modelling of Engineering Problems 6, no. 2 (2019): 300–308. http://dx.doi.org/10.18280/mmep.060219.

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Zhao, Feihu, Joose Kreutzer, Sami Pajunen, and Pasi Kallio. "Mechanical Analysis of a Pneumatically Actuated Concentric Double-Shell Structure for Cell Stretching." Micromachines 5, no. 4 (2014): 868–85. http://dx.doi.org/10.3390/mi5040868.

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Li, Zi, Chong-Yu Wang, Xu Zhang, San-Huang Ke, and Weitao Yang. "Transport properties of an armchair carbon nanotube with a double vacancy under stretching." Journal of Physics: Condensed Matter 20, no. 34 (2008): 345225. http://dx.doi.org/10.1088/0953-8984/20/34/345225.

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Hiroe, Tetsuyuki, Kazuhito Fujiwara, Hidehiro Hata, Kiyotaka Tsutsumi, Takuya Igawa, and Wataru Yamashita. "Explosively Driven Fragmentation Behavior for Structural Components and Shatterproof Effect of Wall Doubling." Materials Science Forum 673 (January 2011): 191–96. http://dx.doi.org/10.4028/www.scientific.net/msf.673.191.

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One-dimensional symmetrical explosive loadings are applied to expand structural components: tubular cylinders, spherical shells and rings of 304 stainless steel and double and single walled cylinders of an aluminum alloy, A5052 to fragmentation, and the effects of wall thicknesses, explosive driver diameters and the constant proportionality of the in-plane biaxial stretching rates are investigated on the deformation and fracture behavior of three types of single walled structures and shatterproof behavior for double walled cylinders experimentally and numerically. In the cylinder tests, the dr

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Garaboa-Paz, D., and V. Pérez-Muñuzuri. "A method to calculate finite-time Lyapunov exponents for inertial particles in incompressible flows." Nonlinear Processes in Geophysics 22, no. 5 (2015): 571–77. http://dx.doi.org/10.5194/npg-22-571-2015.

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Abstract. The present study aims to improve the calculus of finite-time Lyapunov exponents (FTLEs) applied to describe the transport of inertial particles in a fluid flow. To this aim, the deformation tensor is modified to take into account that the stretching rate between particles separated by a certain distance is influenced by the initial velocity of the particles. Thus, the inertial FTLEs (iFTLEs) are defined in terms of the maximum stretching between infinitesimally close trajectories that have different initial velocities. The advantages of this improvement, if compared to the standard

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Yang, Peng Fei, Jun Ying Li, and Tian Duo Li. "Characterization on Propylene Oxide Polymerization with In Situ FT-IR." Advanced Materials Research 160-162 (November 2010): 60–64. http://dx.doi.org/10.4028/www.scientific.net/amr.160-162.60.

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In-situ FT-IR technique is used to investigate the polymerization of propylene oxide with potassium t-butoxide as initiator. The epoxy absorbance at 828 cm-1 is the most useful peaks to monitor the reaction. The absorbance of C-O-C stretching vibration at 1107 cm-1 is very strong and also very useful. Yet, the absorbance of C-H stretching vibration in 3000~2800 cm-1 region is very weak and not reliable for In-situ FT-IR analysis. By monitoring the consumption of propylene oxide, the polymerization rate constant k at 33°C was calculated out and an interesting auto acceleration phenomenon was di

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