Reliability Of Peak And Average Velocity Measurements During Sit-to-stand Assessments Using A Portable Linear Transducer

We present a database and catalogue of radial velocities of galaxies towards the region of the Shapley Supercluster (SSC) based on 18 129 measured velocities for 10 702 galaxies in the approximately 300 square degree area between 12h43m00s < RA < 14h17m00s and −23° 30′00″ > Dec > − 38° 30′00″. The database contains velocity measurements that have been reported in the literature up until 2015. It also includes 5084 velocities, corresponding to 4617 galaxies, observed by us at Las Campanas Observatory and Cerro Tololo Inter-American Observatory, which had not been reported individually until now. Of the latter, 2585 correspond to galaxies with no other previously published velocity measurement before 2015. Every galaxy in the velocity database has been identified with a galaxy extracted from the SuperCOSMOS photometric catalogues. We also provide a combined average velocity catalogue for all 10 702 galaxies with measured velocities, adopting the SuperCOSMOS positions as a homogeneous base. A general magnitude cut-off at R2 = 18.0 mag was adopted (with exceptions only for some of the new reported velocities). In general terms, we confirm the overall structure of the SSC as reported in earlier papers. However, the more extensive velocity data show finer structures, which is to be discussed in a future publication.

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An Evaluation of Functional Sit-to-Stand Power in Cohorts of Healthy Adults Aged 18–97 Years

Journal of Aging and Physical Activity ◽

10.1123/japa.2016-0031 ◽

2017 ◽

Vol 25 (2) ◽

pp. 305-310 ◽

Cited By ~ 8

Author(s):

Jordan M. Glenn ◽

Michelle Gray ◽

Jennifer Vincenzo ◽

Sally Paulson ◽

Melissa Powers

Keyword(s):

Body Weight ◽

Peak Power ◽

Average Velocity ◽

Peak Velocity ◽

Average Power ◽

Healthy Adults ◽

Sit To Stand

This investigation examined differences in functional sit-to-stand power/velocity between cohorts of adults aged 18–97 years. This study included 264 healthy adults classified into four cohorts (18–40, C1; 60–69, C2; 70–79, C2; ≥ 80, C4). Participants completed the sit-to-stand task five times. Power and velocity were measured via the TENDO power analyzer. Absolute average power was maintained from C1–C3, but decreased (p < .01) in C4. Absolute peak power decreased between C1–C2 (p < .01), was similar between C2–C3, and decreased in C4 (p < .01). Relative (to body weight) average and peak power decreased between C1–C2 (p < .01), was similar between C2–C3, and decreased in C4 (p < .01). Average velocity was similar between C1 and C2, but decreased in C3 (p < .01) and C4 (p < .01), respectively. Peak velocity was significantly different between all cohorts (p < .01). Declines in functional power may plateau during the seventh and eighth decades, accelerating after 80 years.

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Average Velocity Measurements in Six Automotive Torque Converters Part II: Turbine Measurements

Tribology Transactions ◽

10.1080/10402000108982503 ◽

2001 ◽

Vol 44 (4) ◽

pp. 615-625 ◽

Cited By ~ 1

Author(s):

Alexander Yermakov ◽

Ronald D. Flack ◽

Warren D. Claudel

Keyword(s):

Average Velocity ◽

Velocity Measurements ◽

Torque Converters

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Effect of the Continuous Traverse Trajectory and Dynamic Error of the Vane Anemometer on the Accuracy of Average Velocity Measurements at the Cross-Section of the Mine Heading – Model-Based Testing

Archives of Mining Sciences ◽

10.2478/amsc-2014-0072 ◽

2014 ◽

Vol 59 (4) ◽

pp. 1051-1060 ◽

Cited By ~ 2

Author(s):

Paweł Jamróz

Keyword(s):

Velocity Profile ◽

Cross Section ◽

Average Velocity ◽

Dynamic Error ◽

Measuring Instruments ◽

Velocity Measurements ◽

Model Based Testing ◽

Measurement Signal ◽

Stationary Signals ◽

The Cross

Abstract This paper discusses the problem of measuring the average velocity at the cross-section of mine heading with the use of the continuous traverse method. Based on model testing, it has been shown that measurement signals, obtained along the traversing trajectory, belong to the group of non-stationary signals. The methodology of the traversing method measurements, with the aspect of capabilities of measuring instruments used for that purpose, has been analysed. Results of simulation tests concerning the dynamic response of a vane anemometer to the measurement signal for selected trajectories of the continuous traverse have been presented. For this purpose, a velocity profile presenting an expanded stream of undisturbed air flow in the excavation has been used. Attention has been paid to the problem of selecting an adequate trajectory of anemometer movement, as the value of the velocity measured at the cross-section depends on the trajectory

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An Examination of the Performance of Blank Cartridges Used in Captive Bolt Devices for the Pre-Slaughter Stunning and Euthanasia of Animals

Animals ◽

10.3390/ani9080552 ◽

2019 ◽

Vol 9 (8) ◽

pp. 552 ◽

Cited By ~ 5

Author(s):

Andrew Grist ◽

Jeff A. Lines ◽

Randall Bock ◽

Toby G. Knowles ◽

Stephen B. Wotton

Keyword(s):

Average Velocity ◽

Power Source ◽

Practice Variation ◽

Velocity Measurements ◽

The United Kingdom ◽

Determine Function ◽

Fill Volume ◽

Lower Charge ◽

Blank Cartridges

Blank cartridges provide the power source for the majority of captive bolt devices used for rendering animals unconscious prior to slaughter within the United Kingdom or euthanasia worldwide. This paper presents the results of the examination of cartridges as one of the variables that can contribute to an unsuccessful application of this method in practice. Variation was found in cartridge weight, propellant fill volume and velocity within boxes of 1000 cartridges. The variation found was greater in lower charge (1.00 grain) cartridges than in 3.00 grain cartridges, however velocity was found to be variable in both sets. For example, in vivo velocity measurements with 0.25″ calibre 3.00 grain cartridges demonstrated an average velocity of 50.8 m/s over 200 shots with a range of 35.7 to 62.9 m/s when used in the same device. This work demonstrates that variation in cartridge performance does occur and can be due to various factors such as fill volume and propellant function, and simply weighing cartridges cannot be used to determine function, therefore cartridge performance must be a factor that is considered in the event of a miss-stun.

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A Fibre Optic Sensor for High-velocity Measurements of Projectiles Driven by Hot Gases

Australian Journal of Physics ◽

10.1071/ph950079 ◽

1995 ◽

Vol 48 (1) ◽

pp. 79

Author(s):

Frank Di Marzio ◽

Jakub Szajman ◽

Alex Mazzolini

Keyword(s):

Velocity Profile ◽

High Velocity ◽

Average Velocity ◽

Sensor System ◽

Fibre Optic ◽

Noisy Environment ◽

Velocity Measurements ◽

Fibre Optic Sensor ◽

Projectile Motion ◽

Optic Sensor

A fibre optic sensor system for the measurement of the velocity of projectiles propelled by hot gases has been developed. It was found that fibre optic techniques have significant advantages over conventional breakwire methods in this electromagnetically noisy environment. A simple passive fibre system produced both accurate and reliable measurements of projectile velocities which, in this study, were in the range 1-3 km s-l. In addition, by using a number of fibres at different positions along the projectile path, the average velocity of the projectile can be determined at several points, and a velocity profile for the projectile motion obtained.

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