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Journal articles on the topic 'Distance between walls'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Farshidnia, Sadegh, Mojtaba Saneie, Hooman Hajikandi, and Mohammad Rostami. "Experimental Study on the Placement of the Angle and the Distance of Parallel Skimming Walls to Reduce Inlet Sediment in a Lateral Intake." Slovak Journal of Civil Engineering 28, no. 2 (2020): 23–29. http://dx.doi.org/10.2478/sjce-2020-0011.

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AbstractParallel skimming walls are regarded as one of the more efficient methods for controlling inlet sediment to a lateral intake. The present study attempts to experimentally scrutinize the impact of the angles of parallel skimming walls (θ), the corresponding distance (b), and the discharge variations of the main channel of the inlet sediment for the control of an intake. First, the impacts of parallel skimming walls incorporating three angles (θ = 0°, 15°, 30°), located in the front section of the intake and the distance between the walls (b=10 cm, 20 cm, 30 cm), were studied. A dimensio

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2

Li, Fuxiu, and Yewei Zheng. "Numerical investigation of the interaction of back-to-back MSE walls." E3S Web of Conferences 569 (2024): 27001. http://dx.doi.org/10.1051/e3sconf/202456927001.

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The behaviour of back-to-back MSE walls is significantly influenced by the geometry, especially for the horizontal distance (D) between the back of the reinforced soil zone of the two MSE walls or the width-to-height ratio (RWH) of the system. In the Federal Highway Administration (FHWA) design guidelines [1] (Berg et al. 2009), two cases are considered based on the horizontal distance of the two MSE walls. However, no justification is provided for this assumption. Therefore, research is needed to investigate the interaction of back-to-back MSE walls with different horizontal distances. In add

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3

Safikhani, Tabassom, and Mohammad Baharvand. "Evaluating the effective distance between living walls and wall surfaces." Energy and Buildings 150 (September 2017): 498–506. http://dx.doi.org/10.1016/j.enbuild.2017.06.029.

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4

Aronescu, Avi, and Joseph Appelbaum. "Shading on Photovoltaic Collectors on Rooftops." Applied Sciences 10, no. 8 (2020): 2977. http://dx.doi.org/10.3390/app10082977.

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Rooftop photovoltaic (PV) systems in urban environments play an important role in solar electric energy generation. Shading on PV collectors, by self-shading, walls and fences on rooftops, affect negatively the output energy of the PV systems. Increasing the distance between the collector rows, and between the walls and fences near to the collectors, may minimize the shading losses. Practically, this option is usually limited, especially on rooftops. Rooftops may be of different types: horizontal, inclined, and saw-tooth, and may have obscuring structures like walls and fences. The distance be

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5

Mykhailo, Piven, Spolnik Aleksandr, Sychova Tatiana, and Piven Alona. "PATTERNS OF INFLUENCE EXERTED BY THE SIDE WALLS OF A VIBRATORY SIEVE ON THE MOTION OF A LOOSE MIXTURE FLOW." Eastern-European Journal of Enterprise Technologies 4, no. 1 (106) (2020): 29–38. https://doi.org/10.15587/1729-4061.2020.208640.

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The influence of the side walls of a vibratory sieve on the motion of a loose mixture flow has been investigated. The regularities have been established of the flow motion parameters on the walls’ height, the resistance of their surfaces, the length and distance between them. The condition has been defined for the occurrence, degree, character, as well as the region of the side walls’ influence on the mixture motion over the entire area of a sieve. Increasing the height of the walls, the length and resistance of their surfaces increases the surface density and reduces the longitudi

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6

Šamaj, Ladislav, Martin Trulsson, and Emmanuel Trizac. "Strong-coupling theory of counterions between symmetrically charged walls: from crystal to fluid phases." Soft Matter 14, no. 20 (2018): 4040–52. http://dx.doi.org/10.1039/c8sm00571k.

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7

Brujan, Emil-Alexandru, Tatsuya Noda, Atsushi Ishigami, Toshiyuki Ogasawara, and Hiroyuki Takahira. "Dynamics of laser-induced cavitation bubbles near two perpendicular rigid walls." Journal of Fluid Mechanics 841 (February 19, 2018): 28–49. http://dx.doi.org/10.1017/jfm.2018.82.

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The behaviour of a laser-induced cavitation bubble near two perpendicular rigid walls and its dependence on the distance between bubble and walls is investigated experimentally. It was shown by means of high-speed photography with $100\,000~\text{frames}~\text{s}^{-1}$ that an inclined jet is formed during bubble collapse and the bubble migrates in the direction of the jet. At a given position of the bubble with respect to the horizontal wall, the inclination of the jet increases with decreasing distance between the bubble and the second, vertical wall. A bubble generated at equal distances fr

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8

Kudryavtseva, E. O. "Intercellular communications in Chaetopteris plumosa (Sphacelariales, Phaeophyceae)." Botanicheskii Zhurnal 109, no. 8 (2024): 768–79. https://doi.org/10.31857/s0006813624080037.

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This article provides information about the ultrastructure of intercellular communications in Chaetopteris plumosa. The structure and variants of plasmodesmata localization in its cells are described, data on the distances between plasmodesmata and the density of their location in cell walls are provided. In C. plumosa, both independent plasmodesmata and cell wall areas with multiple closely spaced plasmodesmata were found. Such localization of intercellular connections may represent a transitional variant between independent plasmodesmata and pit fields or another variant of plasmodesmata org

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9

Ruchkivskyi, V. V. "INFLUENCE OF DISTANCE BETWEEN A RETAINING WALL AND THE EXISTING BUILDING ON STRESS-STRAIN STATE OF THE SYSTEM «RETAINING STRUCTURES – SOIL MASSIF»." ACADEMIC JOURNAL Series: Industrial Machine Building, Civil Engineering 2, no. 49 (2017): 159–70. http://dx.doi.org/10.26906/znp.2017.49.837.

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The results of work research of engineering protective structures in a densely built–up area with difficult engineering–geological conditions have been presented. The modeling of the geotechnical problem of deep excavation protection using a three-tier retaining wall has been performed. The task of mutual influence of existing building and deep excavation with the change of distance between them is solved. The grafs of displacement’s dependence several tiers of retaining walls from the distance to an existing building have been presented. According to these data, a plot of the dependence of di

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10

Lajevardi, Seyed Hamid, Khashayar Malekmohammadi, and Daniel Dias. "Numerical Study of the Behavior of Back-to-Back Mechanically Stabilized Earth Walls." Geotechnics 1, no. 1 (2021): 18–37. http://dx.doi.org/10.3390/geotechnics1010002.

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Back-to-back mechanically stabilized earth (MSE) walls can sustain significant loadings and deformations due to the interaction mechanisms which occur between the backfill material and reinforcement elements. These walls are commonly used in embankments approaching bridges, ramps, and railways. The performance of a reinforced wall depends on numerous factors, including those defining the soil, the reinforcement, and the soil/reinforcement interaction behavior. The focus of this study is to investigate the behavior of back-to-back mechanically stabilized earth walls considering synthetic and me

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11

Panaetov, V. P., and Denis B. Solovev. "Interaction of Tops of Domains in Metal Nano of the Film." Materials Science Forum 945 (February 2019): 771–75. http://dx.doi.org/10.4028/www.scientific.net/msf.945.771.

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Ferromagnetic film can be a matrix for recording information with the help of magnetic moments of electrons. The study of the processes of changing the magnetic structure in an electron-transmission microscope makes it possible to investigate micro magnetic phenomena. In this paper, we investigate the interaction between the vertices of neighboring regions. It is shown how the magnetic structure of the vertices of the domains changes as they approach each other with the help of an increasing constant magnetic field applied along the axis of easy magnetization. The distance was measured between

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12

Drumond, M. Claudia, and William M. Deen. "Stokes Flow Through a Row of Cylinders Between Parallel Walls: Model for the Glomerular Slit Diaphragm." Journal of Biomechanical Engineering 116, no. 2 (1994): 184–89. http://dx.doi.org/10.1115/1.2895718.

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As a model for flow through the slit diaphragms which connect the epithelial foot processes of renal glomerular capillaries, finite element solutions of Stokes equations were obtained for flow perpendicular to a row of cylinders confined between parallel walls. A dimensionless “additional resistance” (f), defined as the increment in resistance above the Poiseuille flow value, was computed for L/W≤4 and 0.1≤ R/L≤0.9, where L is half the distance between cylinder centers, W is half the distance between walls and R is the cylinder radius. Two factors contributed to f: the drag on the cylinders, a

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13

Erdoğan, M. Emin, and C. Erdem İmrak. "Some Effects of Side Walls on Unsteady Flow of a Viscous Fluid over a Plane Wall." Mathematical Problems in Engineering 2009 (2009): 1–16. http://dx.doi.org/10.1155/2009/725196.

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Four types of unsteady flows of a viscous fluid over a plane wall bounded by two side walls are considered. They are flow caused by impulsive motion of a plate, flow due to oscillation of a plate, flow induced by constantly accelerating plate, and flow imposed by a plate that applies a constant tangential stress to the fluid. In order to solve these problems, the sine and cosine transformations are used, and exact solutions for the velocity distribution are found in terms of definite integrals. The cases for which the time goes to infinity and the distance between two side walls goes to infini

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14

Sergeevichev, Alexander V., Viktoriia A. Sokolova, Ivan I. Kostyukov, Anna Е. Mikhailova, and Sergey A. Voinash. "Abrasive Tools Made of Spherical Corundum in Wood Working." Lesnoy Zhurnal (Forestry Journal), no. 5 (October 20, 2022): 131–42. http://dx.doi.org/10.37482/0536-1036-2022-5-131-142.

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In the manufacture of hard abrasive tools for sanding wood and wood-based materials, spherical corundum is an effective material. The use of spherical corundum abrasive wheels makes it possible to increase the productivity of wood sanding, as well as to expand the application area of hard abrasive tools by reducing tool loading and eliminating burns of the treated surface. In order to substantiate the rational conditions of application of abrasive wheels made of spherical corundum it is necessary to determine the dependences linking the surface geometric parameters of the wheel, which directly

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15

Xiao, Junfeng, and Xi Chen. "Buckling morphology of an elastic beam between two parallel lateral constraints: implication for a snake crawling between walls." Journal of The Royal Society Interface 10, no. 85 (2013): 20130399. http://dx.doi.org/10.1098/rsif.2013.0399.

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A snake crawling on horizontal surfaces between two parallel walls exhibits a unique wave-like shape, which is different from the normal shape of a snake crawling without constraints. We propose that this intriguing system is analogous to a buckled beam under two lateral constraints. A new theoretical model of beam buckling, which is verified by numerical simulation, is firstly developed to account for the special boundary conditions. Under this theoretical model, the effect of geometrical parameters on the deformation shape, such as the distance between walls, length of the snake and radius o

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16

Salah Zerguine, Djamel Benmeddour, and Abdelhak Mabrouki. "Bearing capacity of a strip footing on a geosynthetic reinforced soil modular block walls after a seismic loading." Journal of Applied Engineering Science & Technology 4, no. 1 (2018): 7. http://dx.doi.org/10.69717/jaest.v4.i1.63.

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Geosynthetic reinforced walls are widely used in public works. The aim of this paper isto study the bearing capacity of a strip rough footing on a geosynthetic reinforced soil modularblock walls, after a seismic action. The numerical modelling was carried out by using the finiteelement method implemented in the Plaxis code. The influence of the eccentric vertical load onthe bearing capacity of footing was examined considering different distances between the top ofthe wall and the edge of the footing. The results of this study confirm that the seismic loadingdoes not affect the bearing capacity

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17

J. D. Simmons, B. D. Lott, and T. E. Hannigan. "MINIMUM DISTANCE BETWEEN VENTILATION FANS IN ADJACENT WALLS OF TUNNEL VENTILATED BROILER HOUSES." Applied Engineering in Agriculture 14, no. 5 (1998): 533–35. http://dx.doi.org/10.13031/2013.19411.

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18

Ishihara, Manabu, Makoto Shiina, and Shin-nosuke Suzuki. "Evaluation of Method of Measuring Distance Between Object and Walls Using Ultrasonic Sensors." Journal of Asian Electric Vehicles 7, no. 1 (2009): 1207–11. http://dx.doi.org/10.4130/jaev.7.1207.

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19

Ali, Munsif. "Stoke's First Problem for Casson Fluid between two Side Walls over an Infinite Plate." City University International Journal of Computational Analysis 6, no. 1 (2023): 41–49. http://dx.doi.org/10.33959/cuijca.v6i1.67.

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In this article, the unsteady flow of Casson fluid between two side walls normal to the plate is studied by using Fourier finite and infinite sine transforms technique. The bottom plate subjected to impulsive motion to the fluid at time Exact solutions have been established, which satisfy the governing equation and appropriate boundary and initial conditions. The obtained results are reduce to those solutions consequent to the flow over an infinite plate, when and Newtonian fluid by making Casson parameter Keeping in view the measure velocity value and shear stress in the middle of channel, be

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20

Sultan, Q., M. Nazar, I. Ahmad, and U. Ali. "Flow of Second Grade Fluid between two Walls Induced by Rectified Sine Pulses Shear Stress." Journal of Mechanics 31, no. 5 (2015): 573–82. http://dx.doi.org/10.1017/jmech.2015.22.

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AbstractThis paper concerns with the unsteady MHD flow of a second grade fluid between two parallel walls through porous media induced by rectified sine pulses shear stress. The analytical expressions for the velocity field and the adequate shear stress are determined by means of the Laplace transform technique and Fourier cosine and sine transforms and are written as a sum of steady state and transient solutions. The influence of side walls on the fluid motion, the distance between walls for which the velocity of the fluid in the middle of the channel is negligible, and the required time to r

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21

Kritly, Léopold, Yannick Sluyts, David Pelegrín-García, Christ Glorieux, and Monika Rychtáriková. "Discrimination of 2D wall textures by passive echolocation for different reflected-to-direct level difference configurations." PLOS ONE 16, no. 5 (2021): e0251397. http://dx.doi.org/10.1371/journal.pone.0251397.

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In this work, we study people’s ability to discriminate between different 2D textures of walls by passive listening to a pre-recorded tongue click in an auralized echolocation scenario. In addition, the impact of artificially enhancing the early reflection magnitude by 6dB and of removing the direct component while equalizing the loudness was investigated. Listening test results for different textures, ranging from a flat wall to a staircase, were assessed using a 2 Alternative-Forced-Choice (2AFC) method, in which 14 sighted, untrained participants were indicating 2 equally perceived stimuli

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22

Ali, Munsif. "Unsteady Flow of Casson Fluid between Two Side Walls over an Infinite Plate." City University International Journal of Computational Analysis 6, no. 1 (2023): 30–40. http://dx.doi.org/10.33959/cuijca.v6i1.64.

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In the present study, the velocity field corresponding to the unsteady flow of Casson fluid between two parallel side walls perpendicular to an infinite plate that exerts an oscillating shear stress to the fluid is determined with the help of Fourier sine and cosine transforms. Exact solutions are obtained and given in simple form as a combination of transient and steady-state solutions, which satisfy the governing equation and all imposed initial and boundary conditions. These solutions are reduced to the similar solutions corresponding to the motion over an infinite plate, when and Newtonian

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23

Bogdanov, V. L., T. A. Vyshemyrska, A. Ya Grigorenko, N. N. Tormakhov, and P. S. Flis. "RELATIONSHIP BETWEEN PARAMETERS OF THE DENTAL APPARATUS AND RESPIRATORY ORGANS IN ORTHODONTIC TREATMENT." Ukrainian Dental Almanac, no. 2 (June 29, 2021): 87–94. http://dx.doi.org/10.31718/2409-0255.2.2021.16.

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The dental apparatus and the respiratory organs of the skull are closely related. Respiratory tract defects lead to mouth breathing and abnormalities in the development of the dental apparatus. Elimination of dental anomalies does not guarantee against recurrence of dental diseases and encourages the improvement of methods of comprehensive examination and diagnosis. There are many methods for determining the transverse parameters of the facial skull: by diagnostic models or by frontal teleradiography. These methods do not always reflect the true position of the facial skull. We have proposed a

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24

Barabash, R. I., and P. Klimanek. "X-ray scattering by crystals with local lattice rotation fields." Journal of Applied Crystallography 32, no. 6 (1999): 1050–59. http://dx.doi.org/10.1107/s0021889899010237.

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X-ray (or neutron) scattering by crystals with local rotation fields arising from dislocations is treated on the basis of the formalism of the kinematical diffraction theory. Such fields mostly change the intensity distribution of reflections in the azimuthal plane. Scattering intensity in the azimuthal plane for crystals with one or two sets of different-type dislocation walls, causing local rotations in the lattice, is analysed. In this case the intensity distribution is close to Lorentzian in the radial direction and to Gaussian in the azimuthal direction. The expressions for the scattering

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25

Thakur, Prabhanjan Kumar, Rajesh Mishra, Rajesh Kumar Tanwar, Ghanshyam Kumar Mishra, and Rajiv Narang. "Design and Validation of Blast Non-propagation Wall for Multi-Compartmented Explosive Storage Structure of Capacity 5T NEC per Compartment." Defence Science Journal 68, no. 5 (2018): 432–37. http://dx.doi.org/10.14429/dsj.68.12263.

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Conventional magazines for hazard division 1.1 are constructed using bricks and reinforced cement concrete (RCC) for which storage inside quantity distance (SIQD) is 2.4 W1/3 m, where W is Net Explosive Content in kg. New composite called laced reinforced concrete (LRC) has been developed recently, for which SIQD has been reduced up to 0.5 W1/3 m. Due to substantial reduction in separation distances, the requirement of land area has been reduced significantly. Although SIQD has been reduced drastically due to development of new composite, the other quantity distances like process inside quanti

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26

Sadeghipour, M. Sadegh, and Yazdan Pedram Razi. "Natural convection from a confined horizontal cylinder: the optimum distance between the confining walls." International Journal of Heat and Mass Transfer 44, no. 2 (2001): 367–74. http://dx.doi.org/10.1016/s0017-9310(00)00110-1.

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27

Ali, Farik, Sadok Benmebarek, and Mohamed Djabri. "Numerical investigations of GRS wall performance with tiered configurations." STUDIES IN ENGINEERING AND EXACT SCIENCES 5, no. 2 (2024): e5857. http://dx.doi.org/10.54021/seesv5n2-031.

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Geosynthetic Reinforced Soil (GRS) walls have become increasingly popular as a result of their numerous advantages. In some cases these structures are constructed in a multi-tiered configuration, which makes their behavior more complicated. Nevertheless, the response of the multi-tiered walls is insufficiently explained by the existing design manuals and literature studies. This paper investigated the performance of GRS walls with multi-tiered configurations using two-dimensional (2D) finite element numerical models. This study compares the performance of two-tiered GRS walls with simple GRS w

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28

Napiórkowski, M., J. Piasecki, and J. W. Turner. "Non-universal Casimir Forces at Approach to Bose–Einstein Condensation of an Ideal Gas: Effect of Dirichlet Boundary Conditions." Journal of Statistical Physics 181, no. 3 (2020): 944–51. http://dx.doi.org/10.1007/s10955-020-02613-0.

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Abstract We analyze the Casimir forces for an ideal Bose gas enclosed between two infinite parallel walls separated by the distance D. The walls are characterized by the Dirichlet boundary conditions. We show that if the thermodynamic state with Bose–Einstein condensate present is correctly approached along the path pertinent to the Dirichlet b.c. then the leading term describing the large-distance decay of thermal Casimir force between the walls is $$\sim 1/D^{2}$$ ∼ 1 / D 2 with a non-universal amplitude. The next order correction is $$\sim \ln D/D^3$$ ∼ ln D / D 3 . These observations remai

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29

Xu, Wei, Xin Yong Xu, and Zhen Yue Ma. "Analysis on Vibration Conductivity in Walls of Hydropower House Based on Power Flow Theory." Advanced Materials Research 424-425 (January 2012): 285–89. http://dx.doi.org/10.4028/www.scientific.net/amr.424-425.285.

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Basing on the theory of power flow, frequency response analysis was acted on in a hydropower house under dominant frequency with measured data of Three Gorges Station in spiral case and draft tube. Power flow in walls was calculated by APDL procedure and the properties were analyzed. The conclusion is that longitudinal wave is the main method in walls of the powerhouse, energy is reflected and stacked at the top of the walls. Displacement along the river changes and power flow in walls decays obviously. Intensity of vibration origin and distance between the vibration and the wall are both the

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30

Schaub, Andrea, and Hans Ulrich Schnitzler. "Echolocation behavior of the bat Vespertilio murinus reveals the border between the habitat types "edge" and "open space"." Behavioral Ecology and Sociobiology 61, no. 4 (2007): 513–23. https://doi.org/10.5281/zenodo.13430219.

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(Uploaded by Plazi for the Bat Literature Project) We test the hypothesis that echolocation behavior can be used to find the border between bat habitats. Assuming that bats react to background targets in "edge space" but not in "open space", we determined the border between these two habitat types for commuting individuals of the parti-colored bat Vespertilio murinus. We recorded sequences of bats' echolocation signals while they flew parallel to the walls of large buildings and to the ground and determined the signals' average bandwidth, duration, and pulse interval. These parameters varied s

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31

Schaub, Andrea, and Hans Ulrich Schnitzler. "Echolocation behavior of the bat Vespertilio murinus reveals the border between the habitat types "edge" and "open space"." Behavioral Ecology and Sociobiology 61, no. 4 (2007): 513–23. https://doi.org/10.5281/zenodo.13430219.

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(Uploaded by Plazi for the Bat Literature Project) We test the hypothesis that echolocation behavior can be used to find the border between bat habitats. Assuming that bats react to background targets in "edge space" but not in "open space", we determined the border between these two habitat types for commuting individuals of the parti-colored bat Vespertilio murinus. We recorded sequences of bats' echolocation signals while they flew parallel to the walls of large buildings and to the ground and determined the signals' average bandwidth, duration, and pulse interval. These parameters varied s

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32

Schaub, Andrea, and Hans Ulrich Schnitzler. "Echolocation behavior of the bat Vespertilio murinus reveals the border between the habitat types "edge" and "open space"." Behavioral Ecology and Sociobiology 61, no. 4 (2007): 513–23. https://doi.org/10.5281/zenodo.13430219.

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(Uploaded by Plazi for the Bat Literature Project) We test the hypothesis that echolocation behavior can be used to find the border between bat habitats. Assuming that bats react to background targets in "edge space" but not in "open space", we determined the border between these two habitat types for commuting individuals of the parti-colored bat Vespertilio murinus. We recorded sequences of bats' echolocation signals while they flew parallel to the walls of large buildings and to the ground and determined the signals' average bandwidth, duration, and pulse interval. These parameters varied s

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33

Schaub, Andrea, and Hans Ulrich Schnitzler. "Echolocation behavior of the bat Vespertilio murinus reveals the border between the habitat types "edge" and "open space"." Behavioral Ecology and Sociobiology 61, no. 4 (2007): 513–23. https://doi.org/10.5281/zenodo.13430219.

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(Uploaded by Plazi for the Bat Literature Project) We test the hypothesis that echolocation behavior can be used to find the border between bat habitats. Assuming that bats react to background targets in "edge space" but not in "open space", we determined the border between these two habitat types for commuting individuals of the parti-colored bat Vespertilio murinus. We recorded sequences of bats' echolocation signals while they flew parallel to the walls of large buildings and to the ground and determined the signals' average bandwidth, duration, and pulse interval. These parameters varied s

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34

Schaub, Andrea, and Hans Ulrich Schnitzler. "Echolocation behavior of the bat Vespertilio murinus reveals the border between the habitat types "edge" and "open space"." Behavioral Ecology and Sociobiology 61, no. 4 (2007): 513–23. https://doi.org/10.5281/zenodo.13430219.

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(Uploaded by Plazi for the Bat Literature Project) We test the hypothesis that echolocation behavior can be used to find the border between bat habitats. Assuming that bats react to background targets in "edge space" but not in "open space", we determined the border between these two habitat types for commuting individuals of the parti-colored bat Vespertilio murinus. We recorded sequences of bats' echolocation signals while they flew parallel to the walls of large buildings and to the ground and determined the signals' average bandwidth, duration, and pulse interval. These parameters varied s

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35

Manzhos, I. V. "Bound states of domain walls in a ferroelectro-ferromagnet." Soviet Journal of Low Temperature Physics 16, no. 3 (1990): 199–202. https://doi.org/10.1063/10.0032515.

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The dynamics of interacting magnetic and ferroelectric domain walls in a ferroelectro-ferromagnet with a uniform magnetoelectric interaction is analyzed within the framework of the adiabatic approximation. It is shown that for a certain sign of the magnetoelectric interaction constant, domain walls form a bound state. The dependence of the relative oscillation frequency of domain wall centers on the maximum distance between the centers is determined. The critical value of the electric field destroying the bound state of magnetic and ferroelectric domain walls is calculated.

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36

BAZEIA, D., F. A. BRITO, W. FREIRE, and R. F. RIBEIRO. "CONFINING POTENTIAL IN A COLOR DIELECTRIC MEDIUM WITH PARALLEL DOMAIN WALLS." International Journal of Modern Physics A 18, no. 30 (2003): 5627–36. http://dx.doi.org/10.1142/s0217751x03015714.

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We study quark confinement in a system of two parallel domain walls interpolating different color dielectric media. We use the phenomenological approach in which the confinement of quarks appears considering the QCD vacuum as a color dielectric medium. We explore this phenomenon in QCD2, where the confinement of the color flux between the domain walls manifests, in a scenario where two 0-branes (representing external quark and antiquark) are connected by a QCD string. We obtain solutions of the equations of motion via first-order differential equations. We find a new color confining potential

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37

Jouybari, Nima Fallah, and T. Staffan Lundström. "Investigation of Post-Darcy Flow in Thin Porous Media." Transport in Porous Media 138, no. 1 (2021): 157–84. http://dx.doi.org/10.1007/s11242-021-01594-2.

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AbstractWe present numerical simulations of post-Darcy flow in thin porous medium: one consisting of staggered arrangements of circular cylinders and one random distribution of cylinders bounded between walls. The simulations span a range of Reynolds numbers, 40 to 4000, where the pressure drop varies nonlinearly with the average velocity, covering nonlinear laminar flow to the fully turbulent regime. The results are compared to those obtained by replacing the bounding walls with symmetric boundaries with the aim to reveal the effect of bounding walls on microscopic characteristics and macrosc

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38

Houck, Lindsay A., Dwight J. Kravitz, and John W. Philbeck. "Environment width robustly influences egocentric distance judgments." PLOS ONE 17, no. 2 (2022): e0263497. http://dx.doi.org/10.1371/journal.pone.0263497.

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Past work has suggested that perception of object distances in natural scenes depends on the environmental surroundings, even when the physical object distance remains constant. The cue bases for such effects remain unclear and are difficult to study systematically in real-world settings, given the challenges in manipulating large environmental features reliably and efficiently. Here, we used rendered scenes and crowdsourced data collection to address these challenges. In 4 experiments involving 452 participants, we investigated the effect of room width and depth on egocentric distance judgmen

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Jehhef, Kadhum A., and Mohamed A. Al Abas Siba. "EXPERIMENTAL AND NUMERICAL STUDY OF NATURAL CONVECTION BETWEEN TILTED WALLS WITH ATTACHED FINS." IRAQI JOURNAL FOR MECHANICAL AND MATERIALS ENGINEERING 18, no. 2 (2018): 253–76. http://dx.doi.org/10.32852/iqjfmme.vol18.iss2.92.

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The free convection between two tilted adiabatic plates with centered heated horizontalcylinder with attached plate fin was investigated experimentally and numerically. Theexperimental rig constructed from vertical adiabatic was filled with air plates with aspectratio of (A= 12) tilted by angles of (15o, 30o, 45o, 60o, 75o, and 90o). A horizontal heatedcylinder with diameter of (16 cm) subjected under constant heat flux of (100, 500, 700, and1000 W/m2), the Rayleigh number ranging from (3.5 ×107 to 4.5 ×109). At the bottom of therig left an opining with distance of (2, 4, 6, and 8 cm) but the

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Bondel, Shwetha, and Manickam Ravikumar. "Determination of contributions of scatter and distance error to the source strength of 192Ir HDR brachytherapy source." Polish Journal of Medical Physics and Engineering 22, no. 3 (2016): 55–59. http://dx.doi.org/10.1515/pjmpe-2016-0010.

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Abstract High dose rate (HDR) brachytherapy commonly employs a 192Ir encapsulated source to deliver high dose to the malignant tissues. Calibrations of brachytherapy sources are performed by the manufacturer using a well-type chamber or by in-air measurement using a cylindrical ionization chamber. Calibration using the latter involves measurements to be carried out at several distances and room scatter can also be determined. The aim of the present study is to estimate the scatter contribution from the walls, floor and various materials in the room in order to determine the reference air kerma

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Matvienko, Oleg, Olga Daneyko, and Tatiana Kovalevskaya. "Mathematical Modeling of Plastic Deformation of a Tube from Dispersion-Hardened Aluminum Alloy in an Inhomogeneous Temperature Field." Crystals 10, no. 12 (2020): 1103. http://dx.doi.org/10.3390/cryst10121103.

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The effect of temperature distribution on a stress–strain state tube made of disperse-hardened aluminum alloy subjected to internal pressure was investigated. The mathematical model is based on equations of physical plasticity theory and principles of mechanics of deformable solids. The results of this investigation demonstrate that varying the outer wall temperature in the range of 200 K at a fixed temperature of the inner wall leads to a significant change in the plastic resistance limit (for the considered tube sizes, this change is approximately 15%). An increase of the tube wall temperatu

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Triwiyono, Andreas, Frederica Neo, Johan Ardianto, Gumbert Maylda Pratama, and Andreas Sugijopranoto. "Experimental Investigation on the Flexural Performance of Brick Masonry Wall Retrofitted Using PP-Band Meshes under Cyclic Loading." Applied Mechanics and Materials 845 (July 2016): 175–80. http://dx.doi.org/10.4028/www.scientific.net/amm.845.175.

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Numbers of residential houses were damaged in some areas caused by earthquakes. The damages greatly affected the number of losses. Most of the houses in some countries are made of brick unreinforced masonry (URM) walls. Improving the structural performance of this kind of masonry has become important. For this reason, experimental study was conducted on the flexural performance of brick walls retrofitted with strapping band (polypropylene/pp-band). The walls were constructed using bricks produced manually with joint mortar ratio of 1 PC: 6 sand, that chosen to represent the actual field condit

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Manca, Oronzio, Sergio Nardini, and Vincenzo Naso. "Effect on Natural Convection of the Distance Between an Inclined Discretely Heated Plate and a Parallel Shroud Below." Journal of Heat Transfer 124, no. 3 (2002): 441–51. http://dx.doi.org/10.1115/1.1470488.

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An experimental study on air natural convection on an inclined discretely heated plate with a parallel shroud below was carried out. Three heated strips were located in different positions on the upper wall. The distance between the walls, b, was changed in the range 7.0–40.0 mm and two values of the heat flux dissipated by the heaters were taken into account. Several inclination angles between the vertical and the horizontal were tested. The wall temperature distribution as a function of the channel spacing and the inclination angle, the source heat flux, the number and the arrangement of the

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Winkel, N., A. Pasquali, K. Kraljic, R. Smith, A. Gallazzi, and T. M. Jackson. "The imprint of cosmic web quenching on central galaxies." Monthly Notices of the Royal Astronomical Society 505, no. 4 (2021): 4920–34. http://dx.doi.org/10.1093/mnras/stab1562.

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ABSTRACT We investigate how cosmic web environment impacts the average properties of central galaxies in the Sloan Digital Sky Survey (SDSS). We analyse how the average specific star formation rate, stellar age, metallicity, and element abundance ratio [α/Fe] of SDSS central galaxies depend on distance from the cosmic web nodes, walls, and filaments identified by the Discrete Persistent Structures Extractor (DisPerSE). In our approach we control for galaxy stellar mass and local density differentiated between field and group environment. Our results confirm the known trend whereby galaxies exh

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Webb, P. W. "THE EFFECT OF SOLID AND POROUS CHANNEL WALLS ON STEADY SWIMMING OF STEELHEAD TROUT ONCORHYNCHUS MYKISS." Journal of Experimental Biology 178, no. 1 (1993): 97–108. http://dx.doi.org/10.1242/jeb.178.1.97.

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Kinematics and steady swimming performance were recorded for steelhead trout (approximately 12.2 cm in total length) swimming in channels 4.5, 3 and 1.6 cm wide in the centre of a flume 15 cm wide. Channel walls were solid or porous. Tail-beat depth and the length of the propulsive wave were not affected by spacing of either solid or porous walls. The product of tail-beat frequency, F, and amplitude, H, was related to swimming speed, u, and to harmonic mean distance of the tail from the wall, z. For solid walls: FH = 1.01(+/−0.31)u0.67(+/−0.09)z(0.12+/−0.02) and for grid walls: FH = 0.873(+/−0

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Zhao, Junhua, Yue Jia, Ning Wei, and Timon Rabczuk. "Binding energy and mechanical stability of two parallel and crossing carbon nanotubes." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 471, no. 2180 (2015): 20150229. http://dx.doi.org/10.1098/rspa.2015.0229.

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The binding energy between two parallel (and two crossing) single-walled (and multi-walled) carbon nanotubes (CNTs) is obtained by continuum modelling of the van der Waals interaction between them. The dependence of the binding energy on their diameters, number of walls and crossing angles is systematically analysed. The critical length for the mechanical stability and adhesion of the CNTs is determined by the function of E i I i , h and γ , where E i I i , h and γ are the CNTs bending stiffness, distance and binding energy between them, respectively. Checking against full atom molecular dynam

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Piloto, Paulo A. G., Sergio Rodríguez-del-Río, and Diego Vergara. "Fire Analysis of Timber-Framed Walls Lined with Gypsum." Materials 15, no. 3 (2022): 741. http://dx.doi.org/10.3390/ma15030741.

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This investigation analyses the influence of the depth and the distance between studs on the fire resistance of lightweight timber-framed (LTF) walls lined with gypsum plasterboards. The simplified model used to determine the fire resistance in Eurocode EN 1995-1-2 provides very conservative values, as few parameters are considered. The new generation of Eurocode EN 1995-1-2 includes an upgrade of the simplified model, allowing us to predict the fire resistance of LTF wall assemblies more accurately. This separating function method considers the number, the thickness and the material of the pr

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Wu, Yan, Jiamin Wu, Siqun Wang, et al. "Measurement of mechanical properties of multilayer waterborne coatings on wood by nanoindentation." Holzforschung 73, no. 9 (2019): 871–77. http://dx.doi.org/10.1515/hf-2018-0193.

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AbstractWaterborne coatings are widely used for environmental protection. However, they lead to many defects and lower the mechanical properties when applied to wood surfaces. To address this challenge, the effects of multilayer waterborne polycrylic coatings on the mechanical properties of southern pine cell walls were investigated by nanoindentation. The experimental results indicated that the coating layers significantly reduced the elastic modulus (Er) and hardness (H) values than the wood cell walls. TheErandHvalues measured along the coating layer thickness direction increased significan

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Zou, Chuan Long, and En He Bao. "Research on the Interaction between the Movement of Furniture and its Surrounding Walls on the Occasion of an Earthquake." Advanced Materials Research 838-841 (November 2013): 1552–55. http://dx.doi.org/10.4028/www.scientific.net/amr.838-841.1552.

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Through the vibration table testing, with the pine furniture model, the distance between the model and wall, as well as the experimental load and acceleration as the main research parameter. Research on the following aspects: (1) the effect of interaction on distance between the furniture and the wall of the influence of the interaction, (2) the interaction between furniture sliding, mobile and the wall, and the relationship between the test load frequency, acceleration, etc, (3) influence of furniture size on furniture sliding, mobile, etc. The results revealed that sliding volume increases a

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Rana, Mehwish, Nazish Shahid, and Azhar Ali Zafar. "Effects of Side Walls on the Motion Induced by an Infinite Plate that Applies Shear Stresses to an Oldroyd-B Fluid." Zeitschrift für Naturforschung A 68, no. 12 (2013): 725–34. http://dx.doi.org/10.5560/zna.2013-0052.

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Unsteady motions of Oldroyd-B fluids between two parallel walls perpendicular to a plate that applies two types of shears to the fluid are studied using integral transforms. Exact solutions are obtained both for velocity and non-trivial shear stresses. They are presented in simple forms as sums of steady-state and transient solutions and can easily be particularized to give the similar solutions for Maxwell, second-grade and Newtonian fluids. Known solutions for the motion over an infinite plate, applying the same shears to the fluid, are recovered as limiting cases of general solutions. Final

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