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Статті в журналах з теми "Channel visualization"

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Автор: Grafiati

Опубліковано: 6 вересня 2023

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1

Xing, Wei, Jin Ling Lv, and Mei Xian. "Research on the Interactive Visualization Technique of Accounting Information System." Advanced Materials Research 998-999 (July 2014): 1335–38. http://dx.doi.org/10.4028/www.scientific.net/amr.998-999.1335.

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Анотація:

This article aims to explore the deficiencies of the existing accounting information system, project theories and methods to optimize the accounting information system and provide theoretical and methodological support for the establishment and operation of interactive visualization accounting information system. Contribution may be demonstrated in the following aspects: (1) The integration of human-machine theory and accounting information system and to come up with the interactive visualization program of accounting information system based on users' experience; (2) To build a SOA-based accounting information systems interactive visualization platform with the pivot table function and to achieve interactive visualization of the accounting information system processing; (3) To use the concept of accounting channels in the accounting information system interface, classify the display of information in accordance with the accounting channel and to divide accounting channel into four channels based on the Balanced Score Card model.

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2

SUN, JIAN-HONG, and CHIN-TSAU HSU. "FLOW VISUALIZATION OF SUBMERGED JETS IN NARROW CHANNELS." Modern Physics Letters B 23, no. 03 (January 30, 2009): 377–80. http://dx.doi.org/10.1142/s0217984909018448.

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In order to study the effect of wall on the flow pattern of a submerged turbulent water jet in narrow channels, the flow field was visualized by a laser-induced fluorescence (LIF) system at different Reynolds numbers. Those images showed that flow motion in a narrow channel is different from that of a turbulent plane jet without narrow channels. There are three flow patterns in narrow channels: stable impinging, stable jet with recirculation vortices and flapping turbulent jet.

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3

Guillaume, D. W., and J. C. LaRue. "Synchronous Vortex Shedding (Vortex Pumping) Downstream of a Flat Plate Array." Journal of Fluids Engineering 122, no. 1 (November 3, 1999): 183–85. http://dx.doi.org/10.1115/1.483248.

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Flow visualization and statistics, obtained downstream of an array of flat plates, are presented. Flow visualization shows that the mean separation between streaklines for the flow downstream of adjacent channels is negatively correlated. Consistent with this observation, the zero-time cross correlation of the fluctuating velocity between adjacent plates is negative. Vortices shed at the trailing edges of the bounding surfaces that form a channel in the plate array are in-phase, but they are nearly 180 deg out-of-phase with the vortices shed at the trailing edges of the bounding surfaces of adjacent channels. Relative to the mean velocity, the axial velocity on the midplane of the channel increased in the region between each pair of vortices. At downstream positions not near the vortex pair, the velocity on the midplane is relatively decreased. Hence, vortices shed at the trailing edges of the channel surfaces lead to “vortex pumping,” which is consistent with the negative correlation of the fluctuating velocity on the midplanes between adjacent channels. [S0098-2202(00)01701-6]

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4

Lobodenko, Lidia Kamilovna. "Visualization of advertising media text on TV channels’ websites: creative technologies." Journal of Flm Arts and Film Studies 6, no. 1 (March 15, 2014): 124–36. http://dx.doi.org/10.17816/vgik61124-136.

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The article examines the processes of transition to multimedia broadcasting platforms in the Internet introducing creative technology of advertising media text visualization to a new level. Present-day creative technologies provide non-standard use of verbal and nonverbal communication tools driving the audience to advertising media copies. The problem of studying creative technologies of advertising media copy visualization for channel websites is actually underexplored. Nevertheless a new trend in advertising visualization of ad units and messages in the Internet demands of manufacturers pooled knowledge of the advertising product displayed. Thus conventional terrestrial channels acquire both a new business assignment and additional financial support. The article provides theoretical justification of basic concepts, that is "creativity", "creative idea" and "creative technology." Basic elements dominating in development of visualized advertising are distinguished as the guidelines for creative technologies of advertising media text visualization on channel websites, including an exclusive style and advertising image formation technology. Media content of websites of 6 federal (national) TV channels included in the 1st and 2nd multiplexes of interactive digital television in Russia is specially scrutinized as a potent fact. Multimedia broadcasting platforms are shaped in the new informative and communicative environment conditioned by rapidly progressing innovative technologies, which renders to creative technologies of advertising media text visualization both dynamics of transformations and additional advertising product properties: multimediacity, interactivity, onlinity and hypertextuality.

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5

Hong, Gang, Xiao Yan, Yanhua Yan, Jianjun Xu, and Zejun Xiao. "ICONE19-43258 Visualization of Bubble Size Distribution in Inclined Rectangular Channel." Proceedings of the International Conference on Nuclear Engineering (ICONE) 2011.19 (2011): _ICONE1943. http://dx.doi.org/10.1299/jsmeicone.2011.19._icone1943_108.

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6

Ito, Daisuke, Horst-Michael Prasser, and Masanori Aritomi. "ICONE19-43913 VISUALIZATION OF TWO-PHASE INTERFACIAL STRUCTURES IN NARROW CHANNEL." Proceedings of the International Conference on Nuclear Engineering (ICONE) 2011.19 (2011): _ICONE1943. http://dx.doi.org/10.1299/jsmeicone.2011.19._icone1943_343.

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7

SUGII, Yasuhiko, Masa-aki ISHIKAWA, and Koji OKAMOTO. "Visualization of gas flow in micro-channel." Journal of the Visualization Society of Japan 25, Supplement1 (2005): 287–88. http://dx.doi.org/10.3154/jvs.25.supplement1_287.

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8

Tulapurkara, E. G., B. H. Lakshmana Gowda, and N. Balachandran. "Laminar flow through slots." Journal of Fluid Mechanics 190 (May 1988): 179–200. http://dx.doi.org/10.1017/s0022112088001272.

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Анотація:

Laminar flow through slots is investigated using a flow-visualization technique and the numerical solution of the Navier-Stokes equations for steady flow. In the flow situation studied here, the fluid enters an upper channel blocked at the rear end and leaves through a lower channel blocked at the front end. The two channels are interconnected by one, two and three slots. The flow-visualization technique effectively brings out the various features of the flow through slot(s). The ratio of the slot width to the channel height w/h is varied between 0.5 to 4.0 and the Reynolds number Re, based on the velocity at the entry to the channel and the height of the channel, is varied between 300 and 2000. Both w/h and Re influence the flow in general and the extent of the regions of recirculating flow in particular. The Reynolds number at which the vortex shedding begins depends on w/h. Computations are carried out using the computer code 2/E/FIX of Pun & Spalding (1977). The computed flow patterns closely resemble the observed patterns at various Reynolds numbers investigated except around the Reynolds number where the vortex shedding begins.

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9

Delamarche, Christian, Daniel Thomas, Jean-Paul Rolland, Alexandrine Froger, Jean Gouranton, Maria Svelto, Peter Agre, and Giuseppe Calamita. "Visualization of AqpZ-Mediated Water Permeability in Escherichia coli by Cryoelectron Microscopy." Journal of Bacteriology 181, no. 14 (July 15, 1999): 4193–97. http://dx.doi.org/10.1128/jb.181.14.4193-4197.1999.

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ABSTRACT Transport of water across the plasma membrane is a fundamental process occurring in all living organisms. In bacteria, osmotic movement of water across the cytoplasmic membrane is needed to maintain cellular turgor; however, the molecular mechanisms of this process are poorly defined. Involvement of aquaporin water channels in bacterial water permeability was suggested by the recent discovery of the aquaporin gene, aqpZ, in Escherichia coli. By employing cryoelectron microscopy to compare E. coli cells containing (AqpZ+) and lacking (AqpZ−) aquaporin, we show that the AqpZ water channel rapidly mediates large water fluxes in response to sudden changes in extracellular osmolarity. These findings (i) demonstrate for the first time functional expression of a prokaryotic water channel, (ii) evidence the bidirectional water channel feature of AqpZ, (iii) document a role for AqpZ in bacterial osmoregulation, and (iv) define a suitable model for studying the physiology of prokaryotic water transport.

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10

Fonoff, Erich Talamoni, William Omar Contreras Lopez, Ywzhe Sifuentes Almeida de Oliveira, and Manoel Jacobsen Teixeira. "Microendoscopy-guided percutaneous cordotomy for intractable pain: case series of 24 patients." Journal of Neurosurgery 124, no. 2 (February 2016): 389–96. http://dx.doi.org/10.3171/2014.12.jns141616.

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OBJECT The aim of this study was to show that microendoscopic guidance using a double-channel technique could be safely applied during percutaneous cordotomy and provides clear real-time visualization of the spinal cord and surrounding structures during the entire procedure. METHODS Twenty-four adult patients with intractable cancer pain were treated by microendoscopic-guided percutaneous radiofrequency (RF) cordotomy using the double-channel technique under local anesthesia. A percutaneous lateral puncture was performed initially under fluoroscopy guidance to localize the target. When the subarachnoid space was reached by the guiding cannula, the endoscope was inserted for visualization of the spinal cord and surrounding structures. After target visualization, a second needle was inserted to guide the RF electrode. Cordotomy was performed by a standard RF method. RESULTS The microendoscopic double-channel approach provided real-time visualization of the target in 91% of the cases. The other 9% of procedures were performed by the single-channel technique. Significant analgesia was achieved in over 90% of the cases. Two patients had transient ataxia that lasted for a few weeks until total recovery. CONCLUSIONS The use of percutaneous microendoscopic cordotomy with the double-channel technique is useful for specific manipulations of the spinal cord. It provides real-time visualization of the RF probe, thereby adding a degree of safety to the procedure.

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11

Rodríguez-Sevillano, Ángel Antonio, María Jesús Casati-Calzada, Rafael Bardera-Mora, Lucía Ballesteros-Grande, Lucía Martínez-García-Rodrigo, Alejandra López-Cuervo-Alcaraz, Jaime Fernández-Antón, Juan Carlos Matías-García, and Estela Barroso-Barderas. "Exploring the Effectiveness of Visualization Techniques for NACA Symmetric Airfoils at Extremely Low Reynolds Numbers." Fluids 8, no. 7 (July 14, 2023): 207. http://dx.doi.org/10.3390/fluids8070207.

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This article aims to highlight the importance of utilizing flow visualization techniques in the preliminary analysis of streamlined and bluff bodies, especially the potential use of visualization with ink in a water channel as a tool for a preliminary approach during fluid mechanics analysis. According to this, the study compares the results obtained using a classical flow visualization technique, ink injection in water, with those obtained through the employment of a laser-based measurement and visualization technique, called PIV, in a low-speed wind tunnel. The article briefly presents both techniques and highlights the importance of flow visualization in the analysis of aerodynamic bodies. This study focuses on flow over NACA airfoils at extremely low Reynolds numbers, which is of great interest for application in extraterrestrial atmospheres, such as on Mars. After obtaining images of the flow streamlines over the NACA 0018 airfoil, the results of both techniques were compared. The results indicated that there was good agreement between the visualization with the water channel and the PIV results, suggesting that the results obtained in the water channel represented a scientifically valid approximation and an essential complement to computational models that require experimental validation.

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12

ITAGAWA, Tsuyoshi, Satoshi SOMEYA, and Masahiro TAKEI. "20107 Manufacture of Micro Channel and Gas Flow Visualization in Micro Channel." Proceedings of Conference of Kanto Branch 2006.12 (2006): 35–36. http://dx.doi.org/10.1299/jsmekanto.2006.12.35.

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13

Surya Kkumar, R., R. Manigandan, and DJ Gokul. "Flow visualisation of water channel setup for supersonic flow analogy." Journal of Physics: Conference Series 2484, no. 1 (May 1, 2023): 012031. http://dx.doi.org/10.1088/1742-6596/2484/1/012031.

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Abstract In the present study, flow over aerodynamics models is analysed in water channel flow to understand flow physics at affordable cost. The water channel flow visualization setup is constructed to analyse the analogy between Froude number and Mach number and flow visualization over various models is observed. In order to conduct the study, the shallow water speed is varied from 0.4 m/s to 0.6 m/s in the test section of water channel which will corresponds to the Froude number, Fr= 2. The water channel results will be finally validated to wind tunnel at Mach number, M=2. The velocity of water channel can be found by tracing the motion of suspended particles over shallow water at defined length and also by the volumetric flow rate. Several tests were conducted over a spike model to understand the flow visualization and videos were captured. The hydraulic jump and divergent angle in the water surface will be observed and validated with the corresponding shock angle in air medium. Failure analysis throughout the constructs are discussed to understand and resolve different problems faced with the specimen, test section along with camera setup. The present setup can be used multiple times for long duration to observe the flow visualization for undergraduate students.

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14

Davletshin, Irek A., Nikolay I. Mikheev, and Philipp S. Zanko. "VISUALIZATION OF SEPARATED PULSATING FLOW IN A CHANNEL." Journal of Flow Visualization and Image Processing 18, no. 4 (2011): 239–340. http://dx.doi.org/10.1615/jflowvisimageproc.2012004302.

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15

Rouse, Natasha A., and Kathryn A. Daltorio. "Visualization of Stable Heteroclinic Channel-Based Movement Primitives." IEEE Robotics and Automation Letters 6, no. 2 (April 2021): 2343–48. http://dx.doi.org/10.1109/lra.2021.3061382.

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16

NUMAGUCHI, Tomoshige. "Visualization of two-phase flow in DMFC channel." Journal of the Visualization Society of Japan 28-1, no. 1 (2008): 421. http://dx.doi.org/10.3154/jvs.28.421.

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17

MIZUNUMA, Hiroshi, and Hiroshi KATO. "Visualization of channel flow transition in polymer solutins." JOURNAL OF THE FLOW VISUALIZATION SOCIETY OF JAPAN 5, no. 18 (1985): 153–58. http://dx.doi.org/10.3154/jvs1981.5.153.

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18

Natori, Tsutomu, Kenta Watanabe, Daisuke Aoki, Daisuke Seki, and Masaharu Matsubara. "302 Flow Visualization in a Relaminarizing Channel Flow." Proceedings of Conference of Hokuriku-Shinetsu Branch 2011.48 (2011): 75–76. http://dx.doi.org/10.1299/jsmehs.2011.48.75.

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19

Kimmel, R. L., J. R. Hayes, J. Estevadeordal, J. W. Crafton, S. D. Fonov, and S. Gogineni. "Flow visualization in a low-density plasma channel." European Physical Journal Special Topics 182, no. 1 (April 2010): 125–44. http://dx.doi.org/10.1140/epjst/e2010-01229-8.

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20

Bramon, R., M. Ruiz, A. Bardera, I. Boada, M. Feixas, and M. Sbert. "An Information-Theoretic Observation Channel for Volume Visualization." Computer Graphics Forum 32, no. 3pt4 (June 2013): 411–20. http://dx.doi.org/10.1111/cgf.12128.

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21

黄, 家坚. "Visualization Experiment of Subcooled Boiling in Rectangular Channel." Nuclear Science and Technology 11, no. 03 (2023): 231–38. http://dx.doi.org/10.12677/nst.2023.113025.

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22

Okamoto, Koji, Satoshi Watanabe, and Satoshi Someya. "ICONE15-10630 VISUALIZATION OF BOILING IN THE MINI-CHANNEL HEAT EXCHANGER WITH FIN." Proceedings of the International Conference on Nuclear Engineering (ICONE) 2007.15 (2007): _ICONE1510. http://dx.doi.org/10.1299/jsmeicone.2007.15._icone1510_344.

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23

Chen, Sujun, Yongliang Zhao, Chunyan Bao, Yaowu Zhou, Chenxi Wang, Qiuning Lin, and Linyong Zhu. "A well-defined unimolecular channel facilitates chloride transport." Chemical Communications 54, no. 10 (2018): 1249–52. http://dx.doi.org/10.1039/c7cc09200h.

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24

Martin, J., P. Oshkai, and N. Djilali. "Flow Structures in a U-Shaped Fuel Cell Flow Channel: Quantitative Visualization Using Particle Image Velocimetry." Journal of Fuel Cell Science and Technology 2, no. 1 (August 16, 2004): 70–80. http://dx.doi.org/10.1115/1.1843121.

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Flow through an experimental model of a U-shaped fuel cell channel is used to investigate the fluid dynamic phenomena that occur within serpentine reactant transport channels of fuel cells. Achieving effective mixing within these channels can significantly improve the performance of the fuel cell and proper understanding and characterization of the underlying fluid dynamics is required. Classes of vortex formation within a U-shaped channel of square cross section are characterized using high-image-density particle image velocimetry. A range of Reynolds numbers, 109⩽Re⩽872, corresponding to flow rates encountered in a fuel cell operating at low to medium current densities is investigated. The flow fields corresponding to two perpendicular cross sections of the channel are characterized in terms of the instantaneous and time-averaged representations of the velocity, streamline topology, and vorticity contours. The critical Reynolds number necessary for the onset of instability is determined, and the two perpendicular flow planes are compared in terms of absolute and averaged velocity values as well as Reynolds stress correlations. Generally, the flow undergoes a transition to a different regime when two recirculation zones, which originally develop in the U-bend region, merge into one separation region. This transition corresponds to generation of additional vortices in the secondary flow plane.

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25

Paramadita, Tifarah Dayansabila, Nadia Azarine, Aburizal Azhar, and Didit Puji Riyanto. "Local Scouring Visualization of Bed Channel Surface in Hydraulic Structure Using Surfer." Jurnal Teknik Sipil dan Perencanaan 24, no. 2 (October 31, 2022): 140–49. http://dx.doi.org/10.15294/jtsp.v24i2.36499.

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Abstract. Water flowing in the river causes a scouring event that occurs at the bed channel. The existence of scouring will increase along with changes in the geometry of the river and obstacles such as the weir which are followed by local scouring around the weir. Local scouring often occurs downstream end of weir sill which weakens its construction. Scouring measurement was conducted to monitor the pattern of scouring that occurs. By using Surfer software, the scouring visualization through the Data Grid and 3D Surface can be seen. In this research, scour monitoring in the laboratory using open channels (flume) and MDO weir with fine aggregate material as the basis of the channel. The retrieval of scouring data was performed after installing fine aggregate and three times variations of flow discharge, then the data were processed using Surfer. The first flow used water level +3.50 with the material carried at 3.77%. The second flow used water level +4.50 with the material carried at 11.16%. The third flow used water level +5.70 with the material carried at 25.46%. So with the continuous method, the total material carried at 36.27% is equivalent to 12575.77 cm3.

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26

Eiamsa-Ard, Smith, Arnut Phila, Khwanchit Wongcharee, Varesa Chuwattanakul, Monsak Pimsarn, Naoki Maruyama, and Masafumi Hirota. "Thermal Visualization and Performance Analysis in a Channel Installing Transverse Baffles with Square Wings." Energies 15, no. 22 (November 20, 2022): 8736. http://dx.doi.org/10.3390/en15228736.

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The experimental examination of local heat transfer, thermal intensification, friction factors, and thermal performance factors (TPF) in a rectangular channel with square-winged transverse baffles (SW-TB) are presented in this paper. The purpose of this study is to modify the typical transverse baffles (TB) into square-winged transverse baffles (SW-TB) in order to improve the thermal performance and heat transfer rate of the channel. The effects of SW-TBs with various wing attack angles and Reynolds numbers on the heat transfer performance characteristics were examined using a thermochromic liquid crystal sheet. In the experiments, the SW-TBs were attached to the bottom wall of the channel, which had an aspect ratio (W:H) of 3.75:1. The SW-TBs had a width (w) of 150 mm, a square perforated cross-sectional area (a × b) of 8 × 8 mm2, and attack angles (θ) of 0° (solid transverse-baffle), 22.5°, 45°, 67.5°, and 90°. The bottom wall of the channel was evenly heated, while the other walls were insulated. The temperature contours on the heated surface were plotted using temperatures obtained through using the thermochromic liquid crystal (TLC) image-processing method. Experimental results revealed that the SW-TBs created multiple impinging jets, apart from the recirculation. At the proper attack angles (θ = 22.5° and 45°), the SW-TBs offered greater heat transfer rates and caused lower friction losses, resulting in higher TPFs than the solid transverse baffles. In the current work, channels where the SW-TBs display a θ = 45° presented the greatest TPF, as high as 1.26. The multiple impinging jets issuing by the SW-TBs suppressed the size of the recirculation flow and allowed better contact between the fluid flow and channel wall.

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27

Qi, Xuyan, Wei Liu, Rui Lou, Qinghao Li, Liehui Jiang, and Yonghe Tang. "MC-ISA: A Multi-Channel Code Visualization Method for Malware Detection." Electronics 12, no. 10 (May 17, 2023): 2272. http://dx.doi.org/10.3390/electronics12102272.

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Malware detection has always been a hot topic in the cyber security field. With continuous research over the years, many research methods and detection tools based on code visualization have been proposed and achieved good results. However, in the process of code visualization, the existing methods have some issues such as feature scarcity, feature loss and excessive dependence on manual analysis. To address these issues, we propose in this paper a code visualization method with multi-channel image size adaptation (MC-ISA) that can detect large-scale samples more quickly without manual reverse analysis. Experimental results demonstrate that MC-ISA achieves both higher accuracy and F1-score than the existing B2M algorithm after introducing three mechanisms including image size adaptive, color enhancement and multi-channel enhancement.

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28

Maksaev, Grigory, and Elizabeth S. Haswell. "Expression and characterization of the bacterial mechanosensitive channel MscS in Xenopus laevis oocytes." Journal of General Physiology 138, no. 6 (November 14, 2011): 641–49. http://dx.doi.org/10.1085/jgp.201110723.

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We have successfully expressed and characterized mechanosensitive channel of small conductance (MscS) from Escherichia coli in oocytes of the African clawed frog, Xenopus laevis. MscS expressed in oocytes has the same single-channel conductance and voltage dependence as the channel in its native environment. Two hallmarks of MscS activity, the presence of conducting substates at high potentials and reversible adaptation to a sustained stimulus, are also exhibited by oocyte-expressed MscS. In addition to its ease of use, the oocyte system allows the user to work with relatively large patches, which could be an advantage for the visualization of membrane deformation. Furthermore, MscS can now be compared directly to its eukaryotic homologues or to other mechanosensitive channels that are not easily studied in E. coli.

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29

Bhatti, A., T. Ishii, and Y. Saijo. "A Micro-flow Phantom for Superficial Micro-vasculature Imaging." Journal of Physics: Conference Series 2071, no. 1 (October 1, 2021): 012054. http://dx.doi.org/10.1088/1742-6596/2071/1/012054.

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Abstract Visualization of cutaneous micro-vasculatures is a powerful approach assisting in the diagnosis of skin vascular disorders. These minute structures can be visualized by high-frequency ultrasound (HFUS) using ultrafast Doppler imaging. Ultrasound flow phantoms have been used as assessment tools to evaluate the performance of the ultrasound imaging system, however, to optimize the imaging system for visualization of micro-structures, flow phantom with micro-channels is required which are usually difficult to fabricate. Here, we design a simple approach for micro-flow phantom which is easy to fabricate and cast for detection of micro-circulation in superficial micro-structures. The proposed approach features (i) the micro-channels of 200-micron at the depth of 4 mm (ii) casted in the cryogel mixture of Poly-vinyl alcohol (PVA) and (iii) infused at flow speed of 30 mm/s using infusion pump. Visualization of micro-flow channel in power Doppler image obtained by HFUS ultrafast Doppler imaging reveals that the proposed micro-flow phantom could serve as a viable assessment tool for optimizing the system for in-vivo cutaneous micro-vasculature imaging.

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30

Xie, S. Y., Z. Z. Zhang, D. Xu, B. K. Lyu, and L. F. Li. "Visualization study of a cryostat with a large diameter flow channel for flowing high-pressure cryogenic fluid." IOP Conference Series: Materials Science and Engineering 1240, no. 1 (May 1, 2022): 012041. http://dx.doi.org/10.1088/1757-899x/1240/1/012041.

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Abstract For abundant cryogenic experiments, systems, and so on, visualization is necessary to observe the cryogenic fluid. Therefore, the visualization methods of cryogenic fluid have been widely studied, such as shadowgraph technique, schlieren technique, and laser holographic interferometry technique. A cryostat for visualization study must have optical windows to meet the requirement of various image acquisition equipment. Due to the difference of shrinkage between transparent glass and device materials at low temperatures, especially at large diameter flow channels, it is difficult to meet the requirement of visualization. This paper studies a kind of cryogenic visualization device with an inner diameter of 200 mm, which can meet the visualization requirements of cryogenic fluid with the maximum working pressure at 0.7 MPa and the lowest temperature at 77 K. Liquid nitrogen was used to test the visualization of the device at low temperatures. The device was also subjected to vibration conditions to test the ability of the device to withstand harsh environments. The results show that the device has good sealing performance and can meet the visualization requirements well.

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31

NUMAGUCHI, Tomoshige, Hideki KURODA, Shinsuke HIRANO, Yukari EGUCHI, and Eiji EJIRI. "Visualization of Two-Phase Flow in DMFC Anode Channel." Journal of the Visualization Society of Japan 29-1, no. 1 (2009): 241. http://dx.doi.org/10.3154/jvs.29.241.

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32

IMAMOTO, Hirotake, and Taisuke ISHIGAKI. "Visualization of longitudinal eddies in an open channel flow." JOURNAL OF THE FLOW VISUALIZATION SOCIETY OF JAPAN 5, no. 18 (1985): 219–22. http://dx.doi.org/10.3154/jvs1981.5.219.

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33

ICHIMIYA, Koichi, and Koji TORIYAMA. "Flow Visualization of Mixed Convection in a Square Channel." Journal of the Visualization Society of Japan 20, no. 1Supplement (2000): 473–76. http://dx.doi.org/10.3154/jvs.20.1supplement_473.

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34

Numaguchi, Tomoshige, Shinsuke Hirano, Y. Eguchi, and Eiji Ejiri. "Visualization of Two-Phase Flow in DMFC Anode Channel." ECS Transactions 25, no. 33 (December 17, 2019): 147–54. http://dx.doi.org/10.1149/1.3334802.

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35

Walter, J. A., and C. J. Chen. "Visualization and Analysis of Flow in an Offset Channel." Journal of Heat Transfer 114, no. 4 (November 1, 1992): 819–26. http://dx.doi.org/10.1115/1.2911888.

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This paper investigates flow characteristics for a benchmark experiment that is important for thermal hydraulic phenomena in nuclear power plant design. The flow visualization experiment is carried out for flow in a rectangular offset channel covering both the laminar and turbulent flow regimes. The Reynolds number, based on the inlet velocity and the height of the inlet channel, ranges from 25 to 4600. The offset channel is an idealized thermal hydraulic geometry. Duct flow expands in a rectangular chamber and exits to a duct that is offset from the entrance duct. The offset geometry creates zones of recirculation for thermal-hydraulic mixing. Flow patterns are visualized by a laser light sheet in the symmetry plane of the primary flow direction and in three cross-sectional planes. A charge-coupled device (CCD) images the flow field, simplifying the experimental process and subsequent image analyses. The flow pattern and size of the recirculation zones change dramatically with Reynolds number until the flow is fully turbulent. While the velocity field itself is predominantly two dimensional, it is shown that the walls of the chamber produce a fully three-dimensional flow that could not be predicted properly by a two-dimensional calculation. Quantitative measurements of particle pathlines from several images are superimposed to give a composite view of the velocity field at one of the Reynolds numbers examined.

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36

Ohata, Hisayuki, Naoto Maeyama, Tadahiro Ikeuchi, Masayuki Yamamoto, and Kazutaka Momose. "Visualization of mechanosensitive channel opening induced by mechanical stress." Japanese Journal of Pharmacology 79 (1999): 25. http://dx.doi.org/10.1016/s0021-5198(19)34130-7.

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37

Fröhler, B., T. Möller, and C. Heinzl. "GEMSe: Visualization-Guided Exploration of Multi-channel Segmentation Algorithms." Computer Graphics Forum 35, no. 3 (June 2016): 191–200. http://dx.doi.org/10.1111/cgf.12895.

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38

Miyaguchi, Katsuyuki, and Thomas S. Reese. "Direct Visualization of a Transmembrane Channel Associated with Ribosomes." Journal of Structural Biology 116, no. 3 (May 1996): 413–17. http://dx.doi.org/10.1006/jsbi.1996.0058.

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39

Sato, Ayane, Hiroyuki Nishida, and Satoshi Nonaka. "Preliminary Study on Aerodynamic Control of High-Angle-of-Attack Slender Body Using Blowing from Penetrating Flow Channels." International Journal of Aerospace Engineering 2016 (2016): 1–9. http://dx.doi.org/10.1155/2016/1602043.

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The objective of this study is to experimentally verify a new aerodynamic control concept of a high-angle-of-attack slender body. In the concept, penetrating flow channels are installed to the apex of the slender body. The blowing or suction is generated at the channel exits in response to the surface pressure distribution. First, the effects of the flow channels on the aerodynamic characteristics are experimentally investigated in a low-speed wind tunnel. The result shows the Suction-Blowing type channel is the most effective because its control effect does not reduce even in higher mainstream flow velocity. The peak value of the side force and yawing moment can be reduced by up to 64% and 49%, respectively. In addition, visualization of the surface flow pattern by the oil flow method shows that the Suction-Blowing type channel makes not only the primary separation line on the body side but also the secondary separation line on the body back become symmetric.

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40

Guo, Binbin, Hong Tang, Shufeng Xia, Miao Wang, Yating Hu, and Zehang Zhao. "Development of a Multi-Channel Wearable Heart Sound Visualization System." Journal of Personalized Medicine 12, no. 12 (December 4, 2022): 2011. http://dx.doi.org/10.3390/jpm12122011.

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A multi-channel wearable heart sound visualization system based on novel heart sound sensors for imaging cardiac acoustic maps was developed and designed. The cardiac acoustic map could be used to detect cardiac vibration and heart sound propagation. The visualization system acquired 72 heart sound signals and one ECG signal simultaneously using 72 heart sound sensors placed on the chest surface and one ECG analog front end. The novel heart sound sensors had the advantages of high signal quality, small size, and high sensitivity. Butterworth filtering and wavelet transform were used to reduce noise in the signals. The cardiac acoustic map was obtained based on the cubic spline interpolation of the heart sound signals. The results showed the heart sound signals on the chest surface could be detected and visualized by this system. The variations of heart sounds were clearly displayed. This study provided a way to select optimal position for auscultation of heart sounds. The visualization system could provide a technology for investigating the propagation of heart sound in the thoracic cavity.

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41

Juers, Douglas H., and Jon Ruffin. "MAP_CHANNELS: a computation tool to aid in the visualization and characterization of solvent channels in macromolecular crystals." Journal of Applied Crystallography 47, no. 6 (November 28, 2014): 2105–8. http://dx.doi.org/10.1107/s160057671402281x.

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A computation tool is described that facilitates visualization and characterization of solvent channels or pores within macromolecular crystals. A scalar field mapping the shortest distance to protein surfaces is calculated on a grid covering the unit cell and is written as a map file. The map provides a multiscale representation of the solvent channels, which when viewed in standard macromolecular crystallographic software packages gives an intuitive sense of the solvent channel architecture. The map is analysed to yield descriptors of the topology and the morphology of the solvent channels, including bottleneck radii, tortuosity, width variation and anisotropy.

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42

Bates, Paul D., Martin J. Siegert, Victoria Lee, Bryn P. Hubbard, and Peter W. Nienow. "Numerical simulation of three-dimensional velocity fields in pressurized and non-pressurized Nye channels." Annals of Glaciology 37 (2003): 281–85. http://dx.doi.org/10.3189/172756403781815609.

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AbstractChannels incised into bedrock, or Nye channels, often form an important component of subglacial drainage at temperate glaciers, and their structure exerts control over patterns and rates of (a) channel erosion, (b) water flow-velocity and (c) water pressure. The latter, in turn, exerts a strong control over basal traction and, thus, ice dynamics. In order to investigate these controls, it is necessary to quantify detailed flow processes in subglacial Nye channels. However, it is effectively impossible to acquire such measurements from fully pressurized, subglacial channels. To solve this problem, we here apply a three-dimensional, finite-volume solution of the Reynolds averaged Navier– Stokes (RANS) equations with a one-equation mixing-length turbulence closure to simulate flow in a 3 m long section of an active Nye channel located in the immediate foreground of Glacier de Tsanfleuron, Switzerland. Numerical model output permits high-resolution visualization of water flow through the channel reach, and enables evaluation of the experimental manipulation of the pressure field adopted across the overlying ice lid. This yields an increased theoretical understanding of the hydraulic behaviour of Nye channels, and, in the future, of their effect on glacier drainage, geomorphology and ice dynamics.

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43

Jeong, Do-In, and Dong-Wook Oh. "Flow visualization of additive alignment in polymer matrix depending on location of gate orifice." High Temperatures-High Pressures 49, no. 5-6 (2020): 411–21. http://dx.doi.org/10.32908/hthp.v49.963.

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Thermoplastic polymer composites are considered as substitutes for metallic materials because of their advantages in terms of superior corrosion resistance, mass-productivity, lightness, etc. However, their applications are limited owing to their low melting temperature and electrically and thermally insulating characteristics. Numerous experiments are carried out to overcome these limitations and enhance physical properties by analyzing and controlling additive alignment. To achieve enhancement, it is important to understand the rheology of the additive in a polymer matrix and the resulting alignments inside the mold during the molding process. In this study, a flow visualization experiment was carried out to simulate an injection molding process of polymer composites with carbon fiber as an additive. The alignment of carbon fiber is analyzed as it travels through the gate orifice of the mold channel. An experimental device consisting of a ball-milled-carbon-fiber and Polydimethylsiloxane mixture, syringe pump and tubing, high speed camera with microscope, and lighting system is set up to visualize the additive alignment and orientation inside the mold channel. Two configurations of the gate orifice are used as mold channels. The location, length, and angle of additives were calculated by analyzing images acquired through flow visualization experiments. The orientation of fibers is observed to be determined by the relative amplitudes of velocity gradient components. In addition, it was observed that the position of the gate affects the average angle of the additives in the mold channel.

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44

Anipko, Oleg, and Ivan Kots. "RESEARCH OF GAS FLOW BY VISUALIZATION METHOD." Modern technology, materials and design in construction 33, no. 2 (March 22, 2023): 142–46. http://dx.doi.org/10.31649/2311-1429-2022-2-142-146.

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The article describes the test conducted to study the patterns of gas flow for a channel with triangular protrusions using the visualization method to clarify the physical flow pattern. The proposed method makes it possible to obtain fixed patterns of the flow in different regimes and flow parameters. The obtained flow patterns are justified by theoretical dependencies

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45

Tomskaya, Maria, and Irina Zaytseva. "MULTIMEDIA REPRESENTATION OF KNOWLEDGE IN ACADEMIC DISCOURSE." Verbum 8, no. 8 (January 19, 2018): 129. http://dx.doi.org/10.15388/verb.2017.8.11357.

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The article focuses on academic presentations created with the help of multimedia programmes. The presentation is regarded as a special form of new academic knowledge representation. An academic presentation is explored as a multimodal phenomenon due to the fact that different channels or modes are activated during its perception. Data perception constitutes a part of the context which in itself is a semiotic event involving various components (an addresser, an addressee, the message itself, the channel of communication and the code). The choice of the code and the channel depends on different factors (type of the audience, the nature of the message, etc). In this way, the information for non-professionals will be most likely presented through visualization with the help of infographics (schemes, figures, charts, etc). Talking about the professional audience the speaker may resort to visualization to a lesser degree or he may not use it at all. His message will be transmitted only with the help of verbal means, which will not prevent the audience from perceiving and understanding new knowledge correctly. The presentation regime of rapid successive slide show may be regarded the heritage of ‘clip thinking’ which is characterized by a non-linear, simultaneous way of information perception. At the present stage of technology development visualization is becoming the most common means of transmitting information in academic discourse, due to peculiarities of data perception by the man of today.

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46

Tomiuga, Takeshi, Koji Okamoto, and Haruki Madarame. "Visualization Study on Chain Structure in Electro-Rheological Fluids." International Journal of Modern Physics B 13, no. 14n16 (June 30, 1999): 1783–90. http://dx.doi.org/10.1142/s021797929900179x.

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The electrorheological (ER) effect is known as a phenomenon that shows reversible increase of apparent viscosity by applied electric field. The electric field induces the particle polarization, resulting in the chains between the electrodes. In this study, the ER fluids in the channel with two parallel electrodes were visualized under the pressure flow. The laser light sheet and transparent electrodes were used in the experimental apparatus to visualize the particles under 10wt% concentration. The particle chain structure in the channel was clearly visualized. Under higher voltage condition, particle layers were formed at the neighbor of the electrodes. Processing the visualized images, the effects of the chain structure and the layer on the flow resistance were investigated.

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47

Zaitsev, D. V., and V. V. Belosludtsev. "Influence of channel to heater width ratio on flow boiling critical heat flux in mini- and microchannels." Journal of Physics: Conference Series 2057, no. 1 (October 1, 2021): 012047. http://dx.doi.org/10.1088/1742-6596/2057/1/012047.

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Abstract Flow boiling experiments were conducted in mini- and microchannel with different ratio of heater width to a channel width. Decrease in critical heat flux is observed in transition from wide channel to channel with width equal to a heater width. Particularities of boiling phenomena in these conditions were observed by means of high-speed visualization, which provided an explanation to heat flux reduction.

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48

Zhang, Yixiao, Csaba Daday, Ruo-Xu Gu, Charles D. Cox, Boris Martinac, Bert L. de Groot, and Thomas Walz. "Visualization of the mechanosensitive ion channel MscS under membrane tension." Nature 590, no. 7846 (February 10, 2021): 509–14. http://dx.doi.org/10.1038/s41586-021-03196-w.

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49

TAKASE, Kazuyuki, Ryutaroh HINO, Soh MAYUYAMA, Norio AKINO, Tomoaki KUNUGI, and Hiroshi KAWAMURA. "A flow visualization around a obstacle in a parallel channel." JOURNAL OF THE FLOW VISUALIZATION SOCIETY OF JAPAN 6, no. 22 (1986): 323–26. http://dx.doi.org/10.3154/jvs1981.6.323.

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50

Yang, Hyeonmo, Kyoung-Yong Lee, Youngseok Choi, and Kyungseok Jeong. "Visualization of Flow inside the Side Channel Type Regenerative Blower." Journal of Fluid Machinery 16, no. 5 (October 1, 2013): 24–28. http://dx.doi.org/10.5293/kfma.2013.16.5.024.

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