Results 31 to 40 of about 94,321 (265)

Calculating and Analyzing Angular Head Jerk in Augmented and Virtual Reality: Effect of AR Cue Design on Angular Jerk

Applied Sciences, 2021
In this work, we propose a convenient method for evaluating levels of angular jerk in augmented reality (AR) and virtual reality (VR). Jerk is a rarely analyzed metric in usability studies, although it can be measured and calculated easily with most head-
Jared Van Dam, Kyle Tanous, Matt Werner, Joseph L. Gabbard   +3 more
doaj   +1 more source

A parametric reconstruction of the cosmological jerk from diverse observational data sets

, 2016
A parametric reconstruction of the jerk parameter, the third order derivative of the scale factor expressed in a dimensionless way, has been discussed. Observational constraints on the model parameters have been obtained by Maximum Likelihood Analysis of
Banerjee, Narayan, Mukherjee, Ankan
core   +1 more source

Synchronization Limits of Chaotic Circuits [PDF]

, 2014
Through system modeling with electronic circuits, two circuits were constructed that exhibit chaos over a wide ranges of initial conditions. The two circuits were one that modeled an algebraically simple “jerk” function and a resistor-inductor-diode (RLD)
Addison, Stephen R., Church, C. M.
core   +3 more sources

Exploring External Load Metrics in Team Handball: A Study of Europe’s Under-20 Male Championship

E-balonmano.com: Revista de Ciencias del Deporte
The objective assessment of external physical loads has become promising in better understanding players’ match loads and responses. However, there is a lack of consensus on the metrics used along with limited information on this topic in elite handball.
João Freitas, Luisa Estriga
doaj   +1 more source

Optimal Trajectories for Vibration Reduction Based on Exponential Filters [PDF]

, 2015
In this paper, a new type of trajectory, based on an exponential jerk, is presented along with filters for their online generation. The goal is to generalize constant jerk trajectories, widely used in industrial applications, in order to reduce ...
BIAGIOTTI, Luigi, Melchiorri, Claudio, Moriello, Lorenzo   +2 more
core   +1 more source

Constraints on kinematic models from the latest observational data

, 2011
Kinematical models are constrained by the latest observational data from geometry-distance measurements, which include 557 type Ia supernovae (SNIa) Union2 data and 15 observational Hubble data.
Albrecht, Altaie, Amanullah, Barrow, Baumann, Bean, Bento, Blandford, Blandford, Bludman, Cai, Caldwell, Carroll, Copeland, Cunha, Cunha, Di Pietro, Dvali, Elgarøy, Elgarøy, Feng, Frieman, Gaztanñaga, Gong, Gong, Guimaraes, Hicken, Jianbo Lu, Kamenshchik, Kamionkowski, Lazkoz, Lazkoz, Li, Li, Linder, Lixin Xu, Lu, Lu, Lu, Lu, Lu, Lu, Maartens, Molin Liu, Nesseris, Nesseris, Nesseris, Nesseris, Nojiri, Padmanabhan, Peebles, Perivolaropoulos, Perlmutter, Pope, Randall, Rapetti, Ratra, Ratra, Riess, Riess, Riess, Rubin, Sahni, Sahni, Setare, Shapiro, Shapiro, Simon, Spergel, Stern, Szydlowski, Trodden, Turner, Turner, Virey, Woodard, Xu   +76 more
core   +1 more source

Jerk and Hyperjerk in a Rotating Frame of Reference [PDF]

, 2015
Jerk is the derivative of acceleration with respect to time and then it is the third order derivative of the position vector. Hyperjerks are the n-th order derivatives with n>3.
Sparavigna, Amelia Carolina
core   +2 more sources

Bayesian Analysis and Constraints on Kinematic Models from Union SNIa

, 2009
The kinematic expansion history of the universe is investigated by using the 307 supernovae type Ia from the Union Compilation set. Three simple model parameterizations for the deceleration parameter (constant, linear and abrupt transition) and two ...
A. Shafieloo, A.C.C Guimarães, C. Cattoen, C. Shapiro, F.C. Carvalho, G. Steigman, H. Jeffreys, J.A.S Lima, J.A.S. Lima, J.A.S. Lima, J.V Cunha, M. Fairbairn, M. Visser, M.S. Turner, O. Elgaroy, R.A. Daly ., R.D. Blandford, S. Weinberg, Supernova Cosmology Project collaboration, Supernova Cosmology Project collaboration, Supernova Search Team collaboration, Supernova Search Team collaboration, WMAP collaboration   +22 more
core   +1 more source

Life‐Threatening Bradycardia in Anti‐NMDA‐Receptor Encephalitis and a Novel Use for Permanent Pacing

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Pediatric anti‐NMDA receptor encephalitis (pNMDARE) is an autoantibody‐mediated disorder that can cause severe autonomic dysfunction, including symptomatic bradycardia and asystole. Dysautonomia can last for years, making it very challenging to manage.
Sarah Tucker, Abhijit Das, Andres Jimenez, Areeba Basit, Yike Jiang, Emily A. Smitherman, Heather Van Mater, Taylor Howard, Alexander J. Sandweiss, Kristen S. Fisher   +9 more
wiley   +1 more source

Disturbance observer-based HEV dynamic coordination control strategy from EV mode to engine-driving mode

Frontiers in Mechanical Engineering
To mitigate torque fluctuations arising from clutch engagement and multi-power-source coupling during the mode transition from electric vehicle (EV) mode to engine-driving mode in a single-axle parallel hybrid electric vehicle (SPHEV), this paper ...
Yao Fang, Chunlan Yang, Yanchun Wang
doaj   +1 more source