نتایج جستجو برای: position and velocity
تعداد نتایج: 16861482 فیلتر نتایج به سال:
in exploration seismology, migration refers to a multi-channel processing step that attempts to spatially re-position events and improve focusing. before migration, seismic data is usually displayed with traces plotted at the surface location of the receivers and with a vertical time axis. this means that dipping reflections are systematically mispositioned in the lateral coordinate and the ver...
Inertial navigation systems are of the most important and practical systems in determining the velocity, position and attitude of the vehicles and different equipment. In these systems, three accelerometers and three gyroscopes are used to measure linear accelerations and angular velocities of vehicles, respectively. By using the output of these sensors and special inertial algorithms in differ...
Practical concept of velocity distribution of pressure flow in the bends is interesting and hence, the professional engineering design has been investigated in the current study. This paper shows that velocity distribution in the bends can be analyzed in terms of the probability distributions. The concept of entropy based on the probability is an applied and new approach to achieve velocity pro...
In this paper, robust adaptive fuzzy sliding mode control is designed to control the Permanent Magnet (PM) stepper motor in the presence of model uncertainties and disturbances. In doing so, the nonlinear model is converted to canonical form, then, for designing the controller, the robust sliding mode control is designed to decrease the effects of uncertainties and disturbances. A class of fuzz...
Direct measurements of three-dimensional magnetic fields in the interstellar medium (ISM) are not achievable. However, anisotropic nature magnetohydrodynamic (MHD) turbulence provides a novel way tracing fields. Guided by advanced understanding turbulence's anisotropy Position-Position-Velocity (PPV) space, we extend Structure-Function Analysis (SFA) to measure both field orientation and Alfven...
background :this paper explores the gender-related bilateral differences of extensor and flexor torques of the knee joint at low and high angular velocities in iranian healthy males and females. methods : 70 healthy subjects (29 males (26.61±4.34 yrs and 41 females with average age of 23.07±3.70 yrs)) were participated in this study. isokinetic peak torque values for knee extensors and flexor...
In this study, the effect of the secondary flow strength and vorticity on variations of bed shear stress for different positions of spur dike are compared through a mild 90˚ bend along with a T-shaped spur dike in a rigid bed. To carry out these experiments, three dimensional velocimeters (ADV) have been used for measuring velocity. Moreover, a comparison has been made between velocity vectors ...
Table 1: Document Conventions x arena frame x position y arena frame y position z arena frame z position ẋ arena frame x velocity ẏ arena frame y velocity ż arena frame z velocity ẍ arena frame x acceleration ÿ arena frame y acceleration z̈ arena frame z acceleration xB vehicle frame x position yB vehicle frame y position zB vehicle frame z position ẋB vehicle frame x velocity ẏB vehicle frame y...
Table 1: Document Conventions x arena frame x position y arena frame y position z arena frame z position ẋ arena frame x velocity ẏ arena frame y velocity ż arena frame z velocity ẍ arena frame x acceleration ÿ arena frame y acceleration z̈ arena frame z acceleration xB vehicle frame x position yB vehicle frame y position zB vehicle frame z position ẋB vehicle frame x velocity ẏB vehicle frame y...
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