We look for observational signatures that could discriminate between Newtonian and modified Newtonian (MOND) dynamics in the Milky Way, in view of the advent of large astrometric and spectroscopic surveys. Indeed, a typical signature of MOND is an apparent disk of “phantom” dark matter, which is uniquely correlated with the visible disk-density distribution. Due to this phantom dark disk, Newto...

The ROBOTLAB is a MATLAB based software package developed for robot simulation and analysis. MATLAB users can analyze and simulate any arbitrary serial link manipulator using ROBOTLAB by specifying robot kinematics, geometric and dynamic parameters. The package incorporates an extensive library of functions of transforrnations, kinematics, dynamics, control, trajectory and 3D animation of robot...

Aiming at addressing the problems of low production efficiency and safety factors in coal mines, this study designed a new type support equipment verified its theoretical reliability through analysis driving theory. The was carried out kinematics dynamics, position coordinates prototype different times were analyzed using RPY angles, spatial coordinate system established. Then, could be solved ...

The steady-state motion of microdroplets in the electrowetting-based digital microfluidic systems is modeled. Kinematics of fluid flow inside and around the microdroplet is numerically calculated. It is found that the effects of the vertical velocity component especially near the receding and advancing faces plays a crucial role in predicting the microdroplet dynamics. Moreover, it is shown tha...

This book focuses on industrial robotic manipulators and on industrial manufacturing cells built using that type of robots. This chapter covers the current practical methodologies for kinematics and dynamics modeling and computations. The kinematics model represents the motion of the robot without considering the forces that cause the motion. The dynamics model establishes the relationships bet...

Distribution functions (DFs) for dynamically warm thin stellar disks residing in arbitrary axisymmetric potentials are presented which approximately reproduce pre-described surface-density and velocity-dispersion profiles. The functional form of the DFs is obtained by ‘warming-up’ a model made entirely of circular orbits. This can be done in various ways giving different functional forms for th...

We analyse the kinematics of ∼ 400 000 stars for which the RAdial Velocity Experiment (RAVE) has obtained spectra. These stars, half giants and half dwarfs, mostly lie within 2.5 kpc of the Sun. We decompose the sample into hot and cold dwarfs, red-clump and non-clump giants. The kinematics of the clump giants are consistent with being identical with those of the giants as a whole. Without binn...

the management of road traffic accident and the care of casualties  has undergone many changes in recent years. to provide an uniform and systematic approach the ems, firefighters, red cross, red crescent and other rescuers must be updated to reduce entrapment times, and mortality rates, over better organisation and a methodical approach. the rescuers should not attempt to administer medical fi...