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Relevant bibliographies by topics / Fluctuation de tension

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Journal articles

Academic literature on the topic 'Fluctuation de tension'

Author: Grafiati

Published: 4 May 2024

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Journal articles on the topic "Fluctuation de tension"

1

SCHMID, FRIEDERIKE. "FLUCTUATIONS IN LIPID BILAYERS: ARE THEY UNDERSTOOD?" Biophysical Reviews and Letters 08, no. 01n02 (2013): 1–20. http://dx.doi.org/10.1142/s1793048012300113.

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We review recent computer simulation studies of undulating lipid bilayers. Theoretical interpretations of such fluctuating membranes are most commonly based on generalized Helfrich-type elastic models, with additional contributions of local "protrusions" and/or density fluctuations. Such models provide an excellent basis for describing the fluctuations of tensionless bilayers in the fluid Lαphase at a quantitative level.However, this description is found to fail for membranes in the gel phase and for membranes subject to high tensions. The fluctuations of tilted gel membranes (Lβ′phase) show a

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2

Shiba, Hayato, Hiroshi Noguchi, and Jean-Baptiste Fournier. "Monte Carlo study of the frame, fluctuation and internal tensions of fluctuating membranes with fixed area." Soft Matter 12, no. 8 (2016): 2373–80. http://dx.doi.org/10.1039/c5sm01900a.

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Three types of surface tensions are investigated for lipid membranes using a lattice Monte Carlo simulation: the internal tension,σ, conjugated to the real membrane area, the mechanical frame tension,τ, conjugated to the projected area, and the “fluctuation tension”,r, obtained from the height fluctuation spectrum.

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3

Chen, Xiaohang, and Weiwei Ye. "Analysis of Factors Affecting Strand Tension in Cable-Twisting Equipment and Method for Equilibrated Control." Applied Sciences 13, no. 8 (2023): 4690. http://dx.doi.org/10.3390/app13084690.

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To address the issue of tension fluctuations and deviations among the strands during cable-twisting production, it is necessary to establish a relationship model between the centrifugal force, frictional force, and tension experienced by each strand in a single span range under the state of traveling and rotating. Considering the differences of strand alignment at the distribution reel, the effects of centrifugal force and friction on strand tension under different twisting-deflection paths and cylinder-traveling paths should be analyzed. In our study, different stress states of each strand we

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4

Zhao, Hai Xia, and Ting Chu. "Analysis of Working Characteristics of Coreless Disc Tensioner in Winding Machine." Advanced Materials Research 821-822 (September 2013): 1446–49. http://dx.doi.org/10.4028/www.scientific.net/amr.821-822.1446.

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The paper introduces the structure and working principle of coreless disc tensioner, using Euler tension formula to calculate the output tension, analyzing the yarn diameterin ideal and actual situations and getting amplification characteristics of the disc tensioner against tension fluctuation. It is found that the tension disc will not expand the tension fluctuation amplitude in ideal condition, and its own performance has certain compensation for the tension fluctuation, which provides a the oretical basis for the design of the coreless disc tensioner and its wide application.

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5

Joachimi, B., F. Köhlinger, W. Handley, and P. Lemos. "When tension is just a fluctuation." Astronomy & Astrophysics 647 (March 2021): L5. http://dx.doi.org/10.1051/0004-6361/202039560.

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Summary statistics of likelihood, such as Bayesian evidence, offer a principled way of comparing models and assessing tension between, or within, the results of physical experiments. Noisy realisations of the data induce scatter in these model comparison statistics. For a realistic case of cosmological inference from large-scale structure, we show that the logarithm of the Bayes factor attains scatter of order unity, increasing significantly with stronger tension between the models under comparison. We develop an approximate procedure that quantifies the sampling distribution of the evidence a

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6

PRIVMAN, VLADIMIR. "FLUCTUATING INTERFACES, SURFACE TENSION, AND CAPILLARY WAVES: AN INTRODUCTION." International Journal of Modern Physics C 03, no. 05 (1992): 857–77. http://dx.doi.org/10.1142/s0129183192000531.

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We present an introduction to modern theories of interfacial fluctuations and the associated interfacial parameters: surface tension and surface stiffness, as well as their interpretation within the capillary wave model. Transfer matrix spectrum properties due to fluctuation of an interface in a long-cylinder geometry are reviewed. The roughening transition and properties of rigid interfaces below the roughening temperature in 3d lattice models are surveyed with emphasis on differences in fluctuations and transfer matrix spectral properties of rigid vs. rough interfaces.

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7

Li, Yan, Zhe Che, Chenggan Zheng, et al. "Modeling of Precise Tension with Passive Dancers for Automated Fiber Placement." Actuators 13, no. 2 (2024): 70. http://dx.doi.org/10.3390/act13020070.

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This paper modeled the tension fluctuation during automated fiber placement (AFP), which depicted the tension variations under different operating conditions. The stability and validity of the model were demonstrated using Bode plots and experiments, respectively. According to the model, the tension fluctuations of AFP at different stages were obtained. Additionally, the passive dancer parameters with the better system performance were determined using the evaluation methodology presented in this paper. Moreover, it was discovered that the damping coefficient affects the tension variation more

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8

INDEKEU, J. O. "LINE TENSION AT WETTING." International Journal of Modern Physics B 08, no. 03 (1994): 309–45. http://dx.doi.org/10.1142/s0217979294000129.

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A review is presented of recent theoretical advances on a fundamental problem in statistical mechanics that concerns the three-phase contact line ℒ and its tension τ near a wetting phase transition. In addition to answering the intriguing question whether or not ℒ and τ vanish at wetting, recent work has also revealed that τ displays universal singular behavior, reflecting critical phenomena associated with the wetting transition. Three factors are crucial for determining the fate of ℒ and τ at wetting: the order of the wetting transition, the range of the intermolecular forces, and the upper

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9

Tojo, Naoki, Mitsuya Otsuka, and Atsushi Hayashi. "Comparison of intraocular pressure fluctuation before and after cataract surgeries in normal-tension glaucoma patients." European Journal of Ophthalmology 29, no. 5 (2018): 516–23. http://dx.doi.org/10.1177/1120672118801163.

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Purpose: Cataract surgeries have been shown to reduce intraocular pressure. We used a Sensimed Triggerfish® contact lens sensor to compare intraocular pressure levels and their fluctuation between before and after cataract surgeries in patients with normal-tension glaucoma. Methods: This was a prospective open-label study. Thirteen patients with normal-tension glaucoma were included. All patients underwent a 1-month washout and discontinued glaucoma medications during this study. In each eye, intraocular pressure fluctuations over 24 h were measured with the contact lens sensor before and at 3

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10

Chen, Hong Ren, and Yi Yong Yao. "The Method of Tension Control with Gravity Balance." Applied Mechanics and Materials 590 (June 2014): 3–7. http://dx.doi.org/10.4028/www.scientific.net/amm.590.3.

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Carbon fiber is a fiber material, so the tension must be kept constant in the placement process. The attitude of carbon fiber placement head will change with the change of a placement path. Focusing on the problem of tension fluctuation caused by the attitude of carbon fiber placement head, gravity balance characteristic of symmetrical objects is adopted to propose a tension control method for eliminating the tension fluctuation and tension measuring error caused by gravity. In this way, the tension is kept constant depending on tension feedback control. Mathematical model and theoretical anal

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