Possibilities and limitations of the sequential kinematic method for simulating evolutionary plasticity problems

2021 ◽  
Vol 140 ◽  
pp. 104449
Author(s):  
Zhenhao Shi ◽  
Maosong Huang ◽  
James P. Hambleton
Keyword(s):  
Kinematic Method

scholarly journals Interferometry of class I methanol masers, statistics and the distance scale

2017 ◽  
Vol 13 (S336) ◽  
pp. 158-161
Author(s):  
Maxim A. Voronkov ◽  
Shari L. Breen ◽  
Simon P. Ellingsen ◽  
Christopher H. Jordan
Keyword(s):  
Angular Resolution ◽  
Class I ◽  
High Angular Resolution ◽  
Current Form ◽  
Young Stellar Object ◽  
Linear Distance ◽  
Kinematic Method ◽  
Future Potential ◽  
Methanol Masers ◽  
Compact Array

AbstractThe Australia Telescope Compact Array (ATCA) participated in a number of survey programs to search for and image common class I methanol masers (at 36 and 44 GHz) with high angular resolution. In this paper, we discuss spatial and velocity distributions revealed by these surveys. In particular, the number of maser regions is found to fall off exponentially with the linear distance from the associated young stellar object traced by the 6.7-GHz maser, and the scale of this distribution is 263±15 milliparsec. Although this relationship still needs to be understood in the context of the broader field, it can be utilised to estimate the distance using methanol masers only. This new technique has been analysed to understand its limitations and future potential. It turned out, it can be very successful to resolve the ambiguity in kinematic distances, but, in the current form, is much less accurate (than the kinematic method) if used on its own.

On Dynamic Cycle Collapse of Circular Plates

1999 ◽  
Vol 66 (1) ◽  
pp. 250-253 ◽  
Author(s):  
P. D. Chinh
Keyword(s):  
Circular Plate ◽  
Upper Bound ◽  
Point Load ◽  
Circular Plates ◽  
Load Effect ◽  
Collapse Mechanisms ◽  
Kinematic Method ◽  
Dynamic Cycle ◽  
Incremental Collapse

The upper bound kinematic method, which is based on a reduced kinematic formulation and involves construction of fictitious elastic moment fields and potential incremental collapse mechanisms, is used to evaluate the dynamic cycle collapse loads for a symmetrically loaded circular plate. The respective nonshakedown curves are constructed, A point load effect is discussed.

Effect of use of different landmark methods on determining stifle angle and on calculated tibial tuberosity advancement

2011 ◽  
Vol 24 (03) ◽  
pp. 205-210 ◽  
Author(s):  
K. Bowlt ◽  
J.A. Gines ◽  
M. R. Owen ◽  
M. A. Bush
Keyword(s):  
Regression Analysis ◽  
Linear Regression ◽  
Joint Angle ◽  
Linear Regression Analysis ◽  
Tibial Tuberosity ◽  
Patella Tendon ◽  
Stifle Joint ◽  
Kinematic Method

SummaryObjectives: Firstly, to investigate the effect that using different landmarks has on the measured stifle angle. Secondly, to determine whether any differences in measured stifle angle would lead to variations in the required extent of tibial tuberosity advancement (TTA).Methods: Three greyhound stifles were positioned in a total of 66 different angles. Radiographic exposures of each stifle angle were made. For each radiograph i) the stifle angle was measured using each of three sets of landmarks and ii) the extent of TTA required to obtain a patella tendon angle of 90° was measured. Each radiograph was plotted graphically according to the stifle angle and the extent of TTA required. Linear regression analysis was used to calculate the TTA required for a stifle angle of 135° measured using each of the three landmark sets.Results: On average, the stifle angle determined by the Long Axes method differed by 18° from the stifle angle determined with the Kinematic method. The stifle angle determined using the Eminence method differed from that determined using the Kinematic method by three degrees. The use of the Long Axes of the tibia and femur as landmarks to determine a stifle angle resulted in 5 mm and 4 mm over-advancement of the tibial tuberosity compared to the use of Kinematic or Eminence landmark methods respectively.Clinical significance: The method used to measure the stifle joint angle can influence the value of the required TTA advancement. This is an additional variable that should be considered during TTA planning and when comparing in vivo and in vitro studies.

Increase in Leg Stiffness Reduces Joint Work During Backpack Carriage Running at Slow Velocities

2017 ◽  
Vol 33 (5) ◽  
pp. 347-353 ◽  
Author(s):  
Bernard Liew ◽  
Kevin Netto ◽  
Susan Morris
Keyword(s):  
Linear Models ◽  
Running Economy ◽  
Joint Work ◽  
Economy Running ◽  
Leg Stiffness ◽  
Kinematic Method ◽  
Running Pattern ◽  
The Impact ◽  
The Relationship ◽  
Healthy Participants

Optimal tuning of leg stiffness has been associated with better running economy. Running with a load is energetically expensive, which could have a significant impact on athletic performance where backpack carriage is involved. The purpose of this study was to investigate the impact of load magnitude and velocity on leg stiffness. We also explored the relationship between leg stiffness and running joint work. Thirty-one healthy participants ran overground at 3 velocities (3.0, 4.0, 5.0 m·s−1), whilst carrying 3 load magnitudes (0%, 10%, 20% weight). Leg stiffness was derived using the direct kinetic-kinematic method. Joint work data was previously reported in a separate study. Linear models were used to establish relationships between leg stiffness and load magnitude, velocity, and joint work. Our results found that leg stiffness did not increase with load magnitude. Increased leg stiffness was associated with reduced total joint work at 3.0 m·s−1, but not at faster velocities. The association between leg stiffness and joint work at slower velocities could be due to an optimal covariation between skeletal and muscular components of leg stiffness, and limb attack angle. When running at a relatively comfortable velocity, greater leg stiffness may reflect a more energy efficient running pattern.

scholarly journals Invisible dark gauge boson search in top decays using a kinematic method

2015 ◽  
Vol 2015 (3) ◽  
Author(s):  
Doojin Kim ◽  
Hye-Sung Lee ◽  
Myeonghun Park
Keyword(s):  
Gauge Boson ◽  
Kinematic Method

Computer Simulation of Kinematic Surfaces

2015 ◽  
Vol 3 (4) ◽  
pp. 19-26 ◽  
Author(s):  
Усманова ◽  
E. Usmanova ◽  
Короткий ◽  
Viktor Korotkiy ◽  
Хмарова ◽  
...  
Keyword(s):  
Computer Simulation ◽  
Interpolation Method ◽  
Dimensional Space ◽  
Second Order ◽  
Surface Shape ◽  
Control Surface ◽  
Surface Model ◽  
Two Dimensional ◽  
Kinematic Method ◽  
Geometric Surface

A geometric surface model is formed taking into account given functional, structural, technological, economic, aesthetic requirements. These requirements are formulated in geometric terms and are expressed in terms of the surface parameters. The surface is modeled either Kinematics manner, or by way of a twodimensional interpolation. In accordance with in accordance with the kinematic method, the surface is formed as a continuous oneparameter many curves that form simulated in the surface. In accordance with the interpolation method, the surface consists of a set of elementary two-dimensional fragments. The article considered cinema optical method based on the use of curves of the second order of change-nests of the eccentricity as the main shaping element. To control the shape of the design surfaces are used for guide ruled surfaces (cilindroidy and conoid). Computer program is compiled, which determines the eccentricity of the forming curves of the second order depending on the boundary conditions. The program allows you to plot curve of the second order, given an arbitrary set of five coplanar points and tangents. When modeling the surface of the passing through a closed circuit, is used the mapping of this contour in four-dimensional space. Such mapping gives more possibilities for control surface shape. It is shown that the kinematics method computer simulation of the surface has technological advantages properties instead of interpolation method.

Sign in / Sign up

Export Citation Format

Share Document