Wikipedia Portalsclose

Results 1 - 10 of 75 for  Wikipedia / Contact dynamics / Wikipedia    (3565152 articles)

Contact dynamics print that page


to obtain a system of ordinary differential equations . A regularized force law for a unilateral contact corresponds to a spring whose stiffness vanishes for an open contact . The regularized approach is easy to understand but has numerical drawbacks in application. The resulting ordinary

Bicycle and motorcycle dynamics print that page


smaller the turn radius , the more lean is required. This balances the roll torque about the wheel contact patches generated by centrifugal force due to the turn with that of the gravitational force . This lean is usually produced by a momentary steering in the opposite direction, called

Contact angle print that page


The contact angle is the angle at which a liquid / vapor interface meets a solid surface . The contact angle is specific for any given system and is determined by the interactions across the three interfaces. Most often the concept is illustrated with a small liquid droplet resting on

Contact force print that page

In physics , a contact force is a force that acts at the point of contact between two objects, [ 1 ] in contrast to body forces . Contact forces are described by Newton's laws of motion , as with all other forces in dynamics . Contact forces are ubiquitous and are responsible for most | 2011/9/29 4:46:34

Fermi paradox print that page


probability of the existence of extraterrestrial civilizations and the lack of evidence for, or contact with, such civilizations. The age of the universe and its vast number of stars suggest that if the Earth is typical, extraterrestrial life should be common. [ 1 ] In an informal discussion

Customer relationship management print that page

A CRM system may be chosen because it is thought to provide the following advantages: [ citation needed ] Quality and efficiency Decrease in overall costs Decision support Enterprise agility Customer Attention [ edit ] Challenges Successful development, implementation, use and support | 2011/9/29 23:02:01

Frictional contact mechanics print that page

Frictional contact mechanics is concerned with a large range of different scales. At the macroscopic scale, it is applied for the investigation of the motion of contacting bodies (see Contact dynamics ). For instance the bouncing of a rubber ball on a surface depends on the frictional interaction | 2011/5/25 9:45:48

Contact geometry print that page

In mathematics , contact geometry is the study of a geometric structure on smooth manifolds given by a hyperplane distribution in the tangent bundle and specified by a one-form , both of which satisfy a 'maximum non-degeneracy' condition called 'complete non-integrability'. From the Frobenius | 2011/5/6 10:30:06

Walking print that page


bipeds , walking is generally distinguished from running in that only one foot at a time leaves contact with the ground and there is a period of double-support. In contrast, running begins when both feet are off the ground with each step. This distinction has the status of a formal requirement

Diffusion of innovations print that page


In 1962 Everett Rogers , a professor of rural sociology published Diffusion of Innovations . In the book, Rogers synthesized research from over 508 diffusion studies and produced a theory for the adoption of innovations among individuals and organizations. The book proposed 4 main elements