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Journal articles on the topic 'High-speed recordings'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

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1

Hess, Markus M., and Manfred Gross. "High-Speed, Light-Intensified Digital Imaging of Vocal Fold Vibrations in High Optical Resolution via Indirect Microlaryngoscopy." Annals of Otology, Rhinology & Laryngology 102, no. 7 (1993): 502–7. http://dx.doi.org/10.1177/000348949310200703.

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Digital imaging of vocal fold vibrations is mainly limited by lighting problems. We present a new technique for high optical resolution of vocal fold vibrations (via indirect microlaryngoscopy) using a light intensifier camera. Superficial epithelial structures and secretions can be followed during vibrations by means of high magnification. Recordings of up to 2.4 seconds and 6,000 frames per second, combined with simultaneous recording of acoustic and electroglottographic signals, are possible. This technique allows instant slow-motion monitor control and subsequent documentation on a normal

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2

Eysholdt, U., M. Tigges, T. Wittenberg, and U. Pröschel. "Direct Evaluation of High-Speed Recordings of Vocal Fold Vibrations." Folia Phoniatrica et Logopaedica 48, no. 4 (1996): 163–70. http://dx.doi.org/10.1159/000266404.

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3

Kopp, T. H., E. Peters, and M. Kurrat. "Estimation of Current Density Using High-Speed-Camera Recordings in a Model Spark Gap during Surge Currents." PLASMA PHYSICS AND TECHNOLOGY 6, no. 1 (2019): 60–64. http://dx.doi.org/10.14311/ppt.2019.1.60.

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<p>For experimental investigations of short time plasma in spark gaps, as used in surge protective devices, high-speed camera recordings are used frequently. The analysis of these recordings provides further details regarding the plasma state and distribution. These deduced details are used to assist research and development processes. <br />To increase the benefit of high-speed camera recordings an empirical model is presented to improve the picture analysis. In this model the recorded radiation intensity is empirically related to the current density within a spark gap. Therefore

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Parot, Vicente J., Carlos Sing-Long, Yoav Adam, et al. "Compressed Hadamard microscopy for high-speed optically sectioned neuronal activity recordings." Journal of Physics D: Applied Physics 52, no. 14 (2019): 144001. http://dx.doi.org/10.1088/1361-6463/aafe88.

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Schlegel, Patrick, Andreas M. Kist, Melda Kunduk, Stephan Dürr, Michael Döllinger, and Anne Schützenberger. "Interdependencies between acoustic and high-speed videoendoscopy parameters." PLOS ONE 16, no. 2 (2021): e0246136. http://dx.doi.org/10.1371/journal.pone.0246136.

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In voice research, uncovering relations between the oscillating vocal folds, being the sound source of phonation, and the resulting perceived acoustic signal are of great interest. This is especially the case in the context of voice disorders, such as functional dysphonia (FD). We investigated 250 high-speed videoendoscopy (HSV) recordings with simultaneously recorded acoustic signals (124 healthy females, 60 FD females, 44 healthy males, 22 FD males). 35 glottal area waveform (GAW) parameters and 14 acoustic parameters were calculated for each recording. Linear and non-linear relations betwee

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Yan, Yuling, Edward Damrose, and Diane Bless. "Functional Analysis of Voice Using Simultaneous High-Speed Imaging and Acoustic Recordings." Journal of Voice 21, no. 5 (2007): 604–16. http://dx.doi.org/10.1016/j.jvoice.2006.05.011.

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7

Block, E. W., M. G. Jones, W. A. Fletcher, and B. Hu. "P1.001 NeuroExplore: a wireless high speed sensing system for human kinematic recordings." Parkinsonism & Related Disorders 14 (February 2008): S11. http://dx.doi.org/10.1016/s1353-8020(08)70098-1.

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8

Semmler, Marion, Stefan Kniesburges, Veronika Birk, Anke Ziethe, Rita Patel, and Michael Dollinger. "3D Reconstruction of Human Laryngeal Dynamics Based on Endoscopic High-Speed Recordings." IEEE Transactions on Medical Imaging 35, no. 7 (2016): 1615–24. http://dx.doi.org/10.1109/tmi.2016.2521419.

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Mehta, Daryush D., Dimitar D. Deliyski, Thomas F. Quatieri, and Robert E. Hillman. "Automated Measurement of Vocal Fold Vibratory Asymmetry From High-Speed Videoendoscopy Recordings." Journal of Speech, Language, and Hearing Research 54, no. 1 (2011): 47–54. http://dx.doi.org/10.1044/1092-4388(2010/10-0026).

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Alich, Therese C., Milan Pabst, Leonie Pothmann, Bálint Szalontai, Guido C. Faas, and Istvan Mody. "A dark quencher genetically encodable voltage indicator (dqGEVI) exhibits high fidelity and speed." Proceedings of the National Academy of Sciences 118, no. 6 (2021): e2020235118. http://dx.doi.org/10.1073/pnas.2020235118.

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Voltage sensing with genetically expressed optical probes is highly desirable for large-scale recordings of neuronal activity and detection of localized voltage signals in single neurons. Most genetically encodable voltage indicators (GEVI) have drawbacks including slow response, low fluorescence, or excessive bleaching. Here we present a dark quencher GEVI approach (dqGEVI) using a Förster resonance energy transfer pair between a fluorophore glycosylphosphatidylinositol–enhanced green fluorescent protein (GPI-eGFP) on the outer surface of the neuronal membrane and an azo-benzene dye quencher

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Tsui, C. M., Y. K. Yan, and H. M. Chan. "Calibration of Stopwatches by Utilizing High Speed Video Recordings and a Synchronous Counter." NCSLI Measure 6, no. 3 (2011): 64–71. http://dx.doi.org/10.1080/19315775.2011.11721566.

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12

Kwon, Kyung-Ah, Rebecca J. Shipley, Mohan Edirisinghe, et al. "High-speed camera characterization of voluntary eye blinking kinematics." Journal of The Royal Society Interface 10, no. 85 (2013): 20130227. http://dx.doi.org/10.1098/rsif.2013.0227.

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Blinking is vital to maintain the integrity of the ocular surface and its characteristics such as blink duration and speed can vary significantly, depending on the health of the eyes. The blink is so rapid that special techniques are required to characterize it. In this study, a high-speed camera was used to record and characterize voluntary blinking. The blinking motion of 25 healthy volunteers was recorded at 600 frames per second. Master curves for the palpebral aperture and blinking speed were constructed using palpebral aperture versus time data taken from the high-speed camera recordings

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Herbst, C. T., J. Lohscheller, J. G. vec, N. Henrich, G. Weissengruber, and W. T. Fitch. "Glottal opening and closing events investigated by electroglottography and super-high-speed video recordings." Journal of Experimental Biology 217, no. 6 (2014): 955–63. http://dx.doi.org/10.1242/jeb.093203.

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14

Laurijssen, Dennis, Erik Verreycken, Inga Geipel, Walter Daems, Herbert Peremans, and Jan Steckel. "Low-cost synchronization of high-speed audio and video recordings in bio-acoustic experiments." Journal of Experimental Biology 221, no. 4 (2017): jeb173724. http://dx.doi.org/10.1242/jeb.173724.

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15

Berencsi, Bence Ferenc, and Attila Kossa. "Analyzing the Effect of Temperature on Squash Ball Impacts Using High-Speed Camera Recordings." Periodica Polytechnica Mechanical Engineering 65, no. 4 (2021): 354–62. http://dx.doi.org/10.3311/ppme.18381.

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Description of the impact characteristics of different types of balls has a great importance in sport science and in engineering. The primary objective of the present paper is to investigate the effect of the temperature on the impacts of different types of squash balls from a given company. The shots were performed using a self-built air-cannon. The impacts were recorded by a high-speed camera and the recorded videos were analyzed by an image-processing method based on a background subtraction technique. Summarizing the main dynamical parameters, we can conclude that increasing the initial sp

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16

Szalay, F., W. Back, and A. Barneveld. "Comparison of VHS video recording system with Apple Macintosh-based image analysis and modified CODA-3 systems in equine motion analysis." Acta Veterinaria Hungarica 50, no. 2 (2002): 167–76. http://dx.doi.org/10.1556/avet.50.2002.2.6.

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A VHS video - computer-based image analysis combination is described as a low sampling rate motion analysis system. Video recordings were taken indoor without any artificial illumination at 25 fps sampling rate. The horse studied was running on a high-speed treadmill and observed at 1.6, 4 and 7 m/s velocities at walk, trot and canter, respectively. Left forelimb and hindlimb were recorded separately from lateral view. For comparison, parallel CODA-3 recordings were taken at the same time from the same position. Joint angles were expressed and compared in angle-time diagrams. Sampling of both

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Sundbom, Per, Michael Roth, Hans Granfeldt, et al. "Sound analysis of a left ventricular assist device: A technical evaluation of iOS devices." International Journal of Artificial Organs 41, no. 5 (2018): 254–60. http://dx.doi.org/10.1177/0391398818762352.

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Introduction: The use of left ventricular assist device (LVAD) has grown rapidly. Adverse events do continue to occur. In recent years, analysis of LVAD sound recordings emerged as a means to monitor pump function and detect pump thrombosis. The aim of this study was to characterize the sounds from HeartMate II and to evaluate the use of handheld iOS devices for sound recordings. Method: Signal analysis of LVAD sound recordings, with dedicated recording equipment and iOS devices, was performed. Two LVADs running in mock loop circuits were compared to an implanted LVAD. Spectral analysis and pa

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Oswald, Walter, Jan Lauk, Lutz Gödeke, Peter Ehrhard, and Norbert Willenbacher. "Analysis of Paint Flow Pulsations during High-Speed Rotary Bell Atomization." Coatings 9, no. 10 (2019): 674. http://dx.doi.org/10.3390/coatings9100674.

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High-speed rotary bell atomization is the preeminent coating technique in the automotive industry. It is widely accepted that a narrow droplet size distribution and constant spray are necessary in order to guarantee uniform film thickness and high-quality appearance. This may be deteriorated by paint flow pulsations. So far, however, no studies exist regarding such fluctuations quantitatively for this type of atomizers. We fill this gap using image analysis of high-speed recordings close to the bell edge. We could show that the fundamental pulsation frequency increases linearly with rotational

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Meuleman, Chris, and Fred Van Besien. "Coping with extreme speech conditions in simultaneous interpreting." Interpreting. International Journal of Research and Practice in Interpreting 11, no. 1 (2009): 20–34. http://dx.doi.org/10.1075/intp.11.1.03meu.

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This study addresses the strategies used by simultaneous interpreters when confronted with syntactically complex sentences and with a high speed of delivery. The material consists of recordings of fifteen professional interpreters rendering two passages (one with a complex sentence structure, the other with a high speed of delivery) from French into Dutch. Most, but not all, interpreters managed to produce an acceptable translation. In the case of the complex passage, most interpreters opted for a segmentation strategy, while a few applied a tailing strategy. In the case of the high delivery s

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20

Fiorentini, Chiara, Susanna Schmidt, and Paolo Viviani. "The Identification of Unfolding Facial Expressions." Perception 41, no. 5 (2012): 532–55. http://dx.doi.org/10.1068/p7052.

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We asked whether the identification of emotional facial expressions (FEs) involves the simultaneous perception of the facial configuration or the detection of emotion-specific diagnostic cues. We recorded at high speed (500 frames s−1) the unfolding of the FE in five actors, each expressing six emotions (anger, surprise, happiness, disgust, fear, sadness). Recordings were coded every 10 frames (20 ms of real time) with the Facial Action Coding System (FACS, Ekman et al 2002, Salt Lake City, UT: Research Nexus eBook) to identify the facial actions contributing to each expression, and their inte

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21

Oren, Liran, Michael Rollins, Srujana Padakanti, Ann Kummer, Ephraim Gutmark, and Suzanne Boyce. "Using High-Speed Nasopharyngoscopy to Quantify the Bubbling Above the Velopharyngeal Valve in Cases of Nasal Rustle." Cleft Palate-Craniofacial Journal 57, no. 5 (2019): 637–45. http://dx.doi.org/10.1177/1055665619894183.

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Objective: The loud and severely distorting form of audible nasal emission (commonly known as nasal turbulence or nasal rustle) typically occurs with a small velopharyngeal opening during production of pressure-sensitive consonants. The purpose of this study was to determine whether bubbling of the secretions, which commonly occurs on the superior aspect of the velopharyngeal port when there is a small opening, is a periodic process that can generate sound in the nasal cavity. Participants: Ten pediatric patients were included in the study. All participants had normal articulation and resonanc

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22

Bader, Rolf, Florian Pfeifle, and Niko Plath. "Microphone array measurements, high-speed camera recordings, and geometrical finite-differences physical modeling of the grand piano." Journal of the Acoustical Society of America 136, no. 4 (2014): 2132. http://dx.doi.org/10.1121/1.4899691.

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23

Montanyà, J., O. van der Velde, D. Romero, et al. "High-speed intensified video recordings of sprites and elves over the western Mediterranean Sea during winter thunderstorms." Journal of Geophysical Research: Space Physics 115, A4 (2010): n/a. http://dx.doi.org/10.1029/2009ja014508.

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24

Schlegel, Patrick, Marion Semmler, Melda Kunduk, Michael Döllinger, Christopher Bohr, and Anne Schützenberger. "Influence of Analyzed Sequence Length on Parameters in Laryngeal High-Speed Videoendoscopy." Applied Sciences 8, no. 12 (2018): 2666. http://dx.doi.org/10.3390/app8122666.

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Laryngeal high-speed videoendoscopy (HSV) allows objective quantification of vocal fold vibratory characteristics. However, it is unknown how the analyzed sequence length affects some of the computed parameters. To examine if varying sequence lengths influence parameter calculation, 20 HSV recordings of healthy females during sustained phonation were investigated. The clinical prevalent Photron Fastcam MC2 camera with a frame rate of 4000 fps and a spatial resolution of 512 × 256 pixels was used to collect HSV data. The glottal area waveform (GAW), describing the increase and decrease of the a

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Bergfeld, Bastian, Alec van Herwijnen, Benjamin Reuter, Grégoire Bobillier, Jürg Dual, and Jürg Schweizer. "Dynamic crack propagation in weak snowpack layers: insights from high-resolution, high-speed photography." Cryosphere 15, no. 7 (2021): 3539–53. http://dx.doi.org/10.5194/tc-15-3539-2021.

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Abstract. Dynamic crack propagation in snow is of key importance for avalanche release. Nevertheless, it has received very little experimental attention. With the introduction of the propagation saw test (PST) in the mid-2000s, a number of studies have used particle tracking analysis of high-speed video recordings of PST experiments to study crack propagation processes in snow. However, due to methodological limitations, these studies have provided limited insight into dynamical processes such as the evolution of crack speed within a PST or the touchdown distance, i.e. the length from the crac

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Schwarz, R., U. Hoppe, M. Schuster, T. Wurzbacher, U. Eysholdt, and J. Lohscheller. "Classification of Unilateral Vocal Fold Paralysis by Endoscopic Digital High-Speed Recordings and Inversion of a Biomechanical Model." IEEE Transactions on Biomedical Engineering 53, no. 6 (2006): 1099–108. http://dx.doi.org/10.1109/tbme.2006.873396.

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Landgraf, T., H. Moballegh, and R. Rojas. "Design and Development of a Robotic Bee for the Analysis of Honeybee Dance Communication." Applied Bionics and Biomechanics 5, no. 3 (2008): 157–64. http://dx.doi.org/10.1155/2008/871297.

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We have designed a robotic honeybee to mimic the bee dance communication system. To achieve this goal, a tracking system has been developed to extract real bee dance trajectories recorded with high-speed video cameras. The results have been analysed to find the essential properties required for the prototype robot. Putative signals in the dance communication have been identified from the literature. Several prototypes were built with successive addition of more features or improvement of existing components. Prototypes were tested in a populated beehive results were documented using high-speed

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Kryuchyn, A. A. "High-speed optical recording in vitreous chalcogenide thin films." Semiconductor Physics Quantum Electronics and Optoelectronics 17, no. 4 (2014): 389–93. http://dx.doi.org/10.15407/spqeo17.04.389.

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29

Kalous, Tomas, Pavel Holec, Jakub Erben, et al. "The Optimization of Alternating Current Electrospun PA 6 Solutions Using a Visual Analysis System." Polymers 13, no. 13 (2021): 2098. http://dx.doi.org/10.3390/polym13132098.

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The electrospinning process that produces fine nanofibrous materials have a major disadvantage in the area of productivity. However, alternating current (AC) electrospinning might help to solve the problem via the modification of high voltage signal. The aforementioned productivity aspect can be observed via a camera system that focuses on the jet creation area and that measures the average lifespan. The paper describes the optimization of polyamide 6 (PA 6) solutions and demonstrates the change in the behavior of the process following the addition of a minor dose of oxoacid. This addition ser

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Braunschweig, T., J. Lohscheller, U. Eysholdt, U. Hoppe, and M. Döllinger. "Normal Voice Production: Computation of Driving Parameters from Endoscopic Digital High Speed Images." Methods of Information in Medicine 42, no. 03 (2003): 271–76. http://dx.doi.org/10.1055/s-0038-1634360.

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Summary Objectives: A central point for quantitative evaluation of pathological and healthy voices is the analysis of vocal fold oscillations. By means of digital High Speed Glottography (HGG), vocal fold oscillations can be recorded in real time. Recently, a numerical inversion procedure was developed that allows the extraction of physiological parameters from digital high speed videos and a classification of voice disorders. The aim of this work was to validate the inversion procedure and to investigate the applicability to normal voices. Methods: High speed recordings were performed during

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Kist, Andreas M., Pablo Gómez, Denis Dubrovskiy, et al. "A Deep Learning Enhanced Novel Software Tool for Laryngeal Dynamics Analysis." Journal of Speech, Language, and Hearing Research 64, no. 6 (2021): 1889–903. http://dx.doi.org/10.1044/2021_jslhr-20-00498.

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Purpose High-speed videoendoscopy (HSV) is an emerging, but barely used, endoscopy technique in the clinic to assess and diagnose voice disorders because of the lack of dedicated software to analyze the data. HSV allows to quantify the vocal fold oscillations by segmenting the glottal area. This challenging task has been tackled by various studies; however, the proposed approaches are mostly limited and not suitable for daily clinical routine. Method We developed a user-friendly software in C# that allows the editing, motion correction, segmentation, and quantitative analysis of HSV data. We f

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Stefansson, H. Narfi, Kevin W. Eliceiri, Charles F. Thomas, et al. "Wavelet Compression of Three-Dimensional Time-Lapse Biological Image Data." Microscopy and Microanalysis 11, no. 1 (2005): 9–17. http://dx.doi.org/10.1017/s1431927605050014.

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The use of multifocal-plane, time-lapse recordings of living specimens has allowed investigators to visualize dynamic events both within ensembles of cells and individual cells. Recordings of such four-dimensional (4D) data from digital optical sectioning microscopy produce very large data sets. We describe a wavelet-based data compression algorithm that capitalizes on the inherent redunancies within multidimensional data to achieve higher compression levels than can be obtained from single images. The algorithm will permit remote users to roam through large 4D data sets using communication ch

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Matzke-Karasz, Renate, Christina Nagler, and Simon Hofmann. "The ostracod springtail — camera recordings of a previously undescribed high-speed escape jump in the genus Tanycypris (Ostracoda, Cypridoidea)." Crustaceana 87, no. 8-9 (2014): 1072–94. http://dx.doi.org/10.1163/15685403-00003343.

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During an ostracod sampling campaign in the city of Munich (Germany) samples were taken from containers in a greenhouse of the Munich Botanical Garden. Beside the ubiquitous speciesCypridopsis vidua(O. F. Müller, 1776), the samples contained four alien species, i.e.,Chlamydotheca arcuata(Sars, 1901),Strandesia bicuspis(Claus, 1892),Tanycypris centaChang, Lee & Smith, 2012, andTanycypris alfonsiNagler, Geist & Matzke-Karasz, 2014. While sorting the livingTanycyprisspecimens, a yet undescribed usage of the caudal rami was observed. Freshwater ostracods usually move on or in the sediment

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Kunduk, Melda, Michael Doellinger, Andrew J. McWhorter, and Joerg Lohscheller. "Assessment of the variability of vocal fold dynamics within and between recordings with high-speed imaging and by phonovibrogram." Laryngoscope 120, no. 5 (2010): 981–87. http://dx.doi.org/10.1002/lary.20832.

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Chevalier, Elodie, Caroline Boursier, Marine Claudin, Pierre-Yves Marie, and Laetitia Imbert. "Feasibility of 177Lu Therapy Monitoring Using Fast Whole-Body SPECT Recordings Provided by a High-Speed 360° CZT Camera." Clinical Nuclear Medicine 45, no. 11 (2020): e493-e494. http://dx.doi.org/10.1097/rlu.0000000000003169.

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36

Franěk, Marek, and Lukáš Režný. "Environmental Features Influence Walking Speed: The Effect of Urban Greenery." Land 10, no. 5 (2021): 459. http://dx.doi.org/10.3390/land10050459.

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The study investigated the rarely addressed topic of how visual environmental features can influence walking speed. Young adult participants were asked to walk on a route that leads through areas composed of urban parks and areas with a built environment with a large amount of greenery. Their walking speed was measured in selected sections. The participants walked with a small video camera, and their walk was recorded. The temporal information was derived from the video recordings. Subsequently, the participants evaluated the environmental features of the route by specific spatio-cognitive dim

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Dekys, Vladimír, Zuzana Stankovicova, Pavol Novak, and Ondrej Stalmach. "The contribution to the modal analysis using an infrared camera." MATEC Web of Conferences 157 (2018): 05003. http://dx.doi.org/10.1051/matecconf/201815705003.

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The paper deals with modal analysis using an infrared camera. The test objects were excited by the modal exciter with narrowband noise and the response was registered as a frame sequence by the high speed infrared camera FLIR SC7500. The resonant frequencies and the modal shapes were determined from the infrared spectrum recordings. Lock-in technology has also been used. The experimental results were compared with calculated natural frequencies and modal shapes.

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Döllinger, M., M. Schuster, U. Eysholdt, U. Hoppe, and J. Lohscheller. "The Laryngectomee Substitute Voice: Image Processing of Endoscopic Recordings by Fusion with Acoustic Signals." Methods of Information in Medicine 42, no. 03 (2003): 277–81. http://dx.doi.org/10.1055/s-0038-1634361.

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Summary Objectives: The most radical cancer therapy of the throat is the total excision of the larynx which postoperatively results in the loss of voice. A widely-used method of voice rehabilitation is the insertion of a silicone valve, which establishes an unidirectional connection between trachea and esophagus. Thus, during exhalation, air can be directed from the trachea into the esophagus. This air stream excites tissue vibrations of the esophagus and the hypo-pharynx which act as a substitute voice generator. Purpose of the current study is to present a technique for visualizing the dynam

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Díaz-Cádiz, Manuel E., Sean D. Peterson, Gabriel E. Galindo, et al. "Estimating Vocal Fold Contact Pressure from Raw Laryngeal High-Speed Videoendoscopy Using a Hertz Contact Model." Applied Sciences 9, no. 11 (2019): 2384. http://dx.doi.org/10.3390/app9112384.

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The development of trauma-induced lesions of the vocal folds (VFs) has been linked to a high collision pressure on the VF surface. However, there are no direct methods for the clinical assessment of VF collision, thus limiting the objective assessment of these disorders. In this study, we develop a video processing technique to directly quantify the mechanical impact of the VFs using solely laryngeal kinematic data. The technique is based on an edge tracking framework that estimates the kinematic sequence of each VF edge with a Kalman filter approach and a Hertzian impact model to predict the

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Yokoyama, Hikaru, Tetsuya Ogawa, Masahiro Shinya, Noritaka Kawashima та Kimitaka Nakazawa. "Speed dependency in α-motoneuron activity and locomotor modules in human locomotion: indirect evidence for phylogenetically conserved spinal circuits". Proceedings of the Royal Society B: Biological Sciences 284, № 1851 (2017): 20170290. http://dx.doi.org/10.1098/rspb.2017.0290.

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Coordinated locomotor muscle activity is generated by the spinal central pattern generators (CPGs). Vertebrate studies have demonstrated the following two characteristics of the speed control mechanisms of the spinal CPGs: (i) rostral segment activation is indispensable for achieving high-speed locomotion; and (ii) specific combinations between spinal interneuronal modules and motoneuron (MN) pools are sequentially activated with increasing speed. Here, to investigate whether similar control mechanisms exist in humans, we examined spinal neural activity during varied-speed locomotion by mappin

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Gourishetti, Saichand, Jakob Abeßer, Sascha Grollmisch, András Kátai, and Judith Liebetrau. "Investigating the influence of microphone mismatch for acoustic traffic monitoring." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 3 (2021): 3324–34. http://dx.doi.org/10.3397/in-2021-2375.

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The development of robust acoustic traffic monitoring (ATM) algorithms based on machine learning faces several challenges. The biggest challenge is to collect and annotate large high-quality datasets for algorithm training and evaluation. Such a dataset must reflect a broad variety of vehicle sounds since their emitted acoustic noise patterns depend on a variety of factors such as engine noises at different speeds and road conditions. Additionally, the characteristics of the employed microphones have a strong influence on the data. If microphones with different directionality and frequency res

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Brumer, Sophia E., Christopher J. Zappa, Ian M. Brooks, et al. "Whitecap Coverage Dependence on Wind and Wave Statistics as Observed during SO GasEx and HiWinGS." Journal of Physical Oceanography 47, no. 9 (2017): 2211–35. http://dx.doi.org/10.1175/jpo-d-17-0005.1.

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AbstractConcurrent wavefield and turbulent flux measurements acquired during the Southern Ocean (SO) Gas Exchange (GasEx) and the High Wind Speed Gas Exchange Study (HiWinGS) projects permit evaluation of the dependence of the whitecap coverage W on wind speed, wave age, wave steepness, mean square slope, and wind-wave and breaking Reynolds numbers. The W was determined from over 600 high-frequency visible imagery recordings of 20 min each. Wave statistics were computed from in situ and remotely sensed data as well as from a WAVEWATCH III hindcast. The first shipborne estimates of W under sust

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Peirs, Jan, Patricia Verleysen, and Joris Degrieck. "High-Strain-Rate Shear Testing Applied to Ti-6Al-4V." Advanced Materials Research 89-91 (January 2010): 437–42. http://dx.doi.org/10.4028/www.scientific.net/amr.89-91.437.

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In this contribution, two experimental techniques to study the dynamic shear behaviour of metals are presented and applied to Ti-6Al-4V. For bulk materials hat-shaped specimens are subjected to a high-strain-rate load in a split Hopkinson compression bar set-up. For sheet materials a purpose-developed, novel shear specimen geometry, is loaded in a Hopkinson tensile bar set-up. The value of both techniques to assess the dynamic material behaviour is discussed. The experiments are optimized by means of numerical simulations. Digital image correlation is used to extract the specimen deformation f

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Loula, P., E. Rauhala, M. Erkinjuntti, E. Raty, K. Hirvonen, and V. Hakkinen. "Distributed clinical neurophysiology." Journal of Telemedicine and Telecare 3, no. 2 (1997): 89–95. http://dx.doi.org/10.1258/1357633971930922.

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We have developed a consultation forum for clinical neurophysiology in Finland. The system connects local digital electroencephalography EEG recording and analysing networks using a high-speed asynchronous transfer mode ATM network. Clinicians can obtain a second opinion using interactive data and video consultations or using data-only consultations. In addition, the system can be used for off-line review of prerecorded data. During a one-month evaluation, 66 EEG recordings were made altogether in Satakunta Central Hospital and consultations were required on 12 occasions. Nine of them were dat

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Jóźwik, Wojciech, and Andrzej Zbrowski. "Determination of the Shot Energy Characteristics of the Pneumatic Gun by Means of High Speed Imaging Method." Solid State Phenomena 199 (March 2013): 291–96. http://dx.doi.org/10.4028/www.scientific.net/ssp.199.291.

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The article presents the method for the determination of energy characteristics of the pneumatic cannon by means of high speed imaging. The gun tested is a device enabling bird collision endurance tests to be conducted for the structural element of aircrafts. In the tested 250 [m system, the projectiles were thrown in the plastic sabot damaged in the muzzle of the gun. The tests were conducted in the speed ranging between 100 300 m/s for 0.9 and 3.6 [k projectiles. The objective of the tests was to determine the characteristics of the projectile outlet velocity in the feed pressure function. T

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Zabroda, P., L. Pshenichnov, and D. Marichev. "Benthic wildlife underwater video recording during longline survey in Weddell Sea." Ukrainian Antarctic Journal, no. 2 (December 2020): 75–83. http://dx.doi.org/10.33275/1727-7485.2.2020.655.

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Non-extractive method for the benthic wildlife study using the underwater video system (UVS) recording was provided during the research survey with the bottom longline in the northwestern part of the Weddell Sea. At the longline survey stations the data on wind direction and speed, state of the sea, air temperature, cloudiness, ice concentration, atmospheric pressure, precipitation, depth and coordinates of the anchor setting, direction of the longline set also were collected. It was found that the UVS with additional light during video recording does not disturb the animal behavior at depths

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Leithäuser, Till, and Peer Woizeschke. "Influence of the Wire Feeding on the Wetting Process during Laser Brazing of Aluminum Alloys with Aluminum-Based Braze Material." Journal of Manufacturing and Materials Processing 3, no. 4 (2019): 83. http://dx.doi.org/10.3390/jmmp3040083.

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The wetting behavior in laser brazing can be designated as inconstant, caused largely by external process discontinuities such as the wire feeding. To reveal periodic melt pool propagation effects that occur during laser brazing of aluminum and for a better understanding of those effects in laser brazing in general, this paper analyzes high-speed recordings of the brazing process with aluminum alloy. It is demonstrated that two main effects of periodic melt pool behavior in different frequency scales occur during the process, related directly to the wire feeding.

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Burrows, Malcolm, and Genevieve Morris. "The kinematics and neural control of high-speed kicking movements in the locust." Journal of Experimental Biology 204, no. 20 (2001): 3471–81. http://dx.doi.org/10.1242/jeb.204.20.3471.

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SUMMARYThe tibiae of locust hind legs can be extended fully in a kick in 3 ms with peak angular velocities of at least 80° ms–1. If the mass of the distal part of the leg is halved, then the extension is complete in less than 1 ms with angular velocities of more than 200° ms–1. The high velocities and the associated power are generated by a preceding storage of energy and its sudden release produced by a specific motor pattern and specialisations of the femoro-tibial joints. To understand the dynamics of these rapid movements and the interrelations between joint mechanics and the motor pattern

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Powell, Maria E., Dimitar D. Deliyski, Robert E. Hillman, Steven M. Zeitels, James A. Burns, and Daryush D. Mehta. "Comparison of Videostroboscopy to Stroboscopy Derived From High-Speed Videoendoscopy for Evaluating Patients With Vocal Fold Mass Lesions." American Journal of Speech-Language Pathology 25, no. 4 (2016): 576–89. http://dx.doi.org/10.1044/2016_ajslp-15-0050.

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Purpose Videostroboscopy (VS) uses an indirect physiological signal to predict the phase of the vocal fold vibratory cycle for sampling. Simulated stroboscopy (SS) extracts the phase of the glottal cycle directly from the changing glottal area in the high-speed videoendoscopy (HSV) image sequence. The purpose of this study is to determine the reliability of SS relative to VS for clinical assessment of vocal fold vibratory function in patients with mass lesions. Methods VS and SS recordings were obtained from 28 patients with vocal fold mass lesions before and after phonomicrosurgery and 17 con

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Goddard, Erin, Samuel G. Solomon, and Thomas A. Carlson. "Dynamic population codes of multiplexed stimulus features in primate area MT." Journal of Neurophysiology 118, no. 1 (2017): 203–18. http://dx.doi.org/10.1152/jn.00954.2016.

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The middle-temporal area (MT) of primate visual cortex is critical in the analysis of visual motion. Single-unit studies suggest that the response dynamics of neurons within area MT depend on stimulus features, but how these dynamics emerge at the population level, and how feature representations interact, is not clear. Here, we used multivariate classification analysis to study how stimulus features are represented in the spiking activity of populations of neurons in area MT of marmoset monkey. Using representational similarity analysis we distinguished the emerging representations of moving

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