In Houston, there were a few incidents of friction between whites and Negroes, none of which were serious.

Af is the friction force between chip and knife surfaces, and P is the normal force acting on the face of the knife.

Consequently, both the rake angle of the knife as well as the friction occurring between the back of the removed coating and the front of the knife will determine in large part the detailed mechanism of the cutting removal process.

The measured force, H, in cutting removal of coatings from their substrates consequently can be seen to be the sum of that force required to cut the coating, Af, that due to the bluntness of the knife, Af, and that due to the friction between the bottom of the knife and the substrate, Af, or Af.

If the rake angle **yc of the knife is high enough and the friction angle **yt between the front of the knife and the back of the chip is low enough to give a positive value for Af, the resultant vector R will lie above the plane of the substrate.

The secretary's greatest achievement is perhaps the rekindling of NATO realization that East-West friction, wherever it take place around the globe, is in essence the general conflict between two entirely different societies, and must be treated as such without regard to geographical distance or lack of apparent connection.

Cognate usages may cause cultural friction between U. S. nationals and Latin Americans who object to American English's exclusionary denotations of ' American '.

In aerodynamics, air is normally assumed to be a Newtonian fluid, which posits a linear relationship between the shear stress ( the internal friction forces ) and the rate of strain of the fluid.

While some recent scholars have questioned the existence of a large-scale Domitian persecution, others believe that Domitian's insistence on being treated as a god may have been a source of friction between the Church and Rome.

Criticism of Christianity and Christians goes back to the Apostolic age, with the New Testament recording friction between the followers of Jesus and the Pharisees and scribes ( e. g. Mark 7: 1-23 and Matthew 15: 1-20 ).

Although the gearbox does not stop rotating during a gear change, there is no torque transmitted through it, thus less friction between gears and their engagement dogs.

Engine power is transmitted via a set of vee-belts that are slack when the engine is idling, but by means of a tensioner pulley can be tightened to increase friction between the belts and the sheaves.

The different conceptions of CND-campaign by eminent individuals or mass movement-caused friction between leaders and supporters.

Although the Committee was supported by many in CND, it has been suggested that the campaign against nuclear weapons was weakened by the friction between the two organisations.

Only weeks after Super Bowl XXVIII, however, friction between Johnson and Jones culminated in Johnson stunning the football world by announcing his resignation.

US military activities in Diego Garcia have caused friction between India and the US in the past.

The massive property boom and consequent rise in house prices has led to friction between the new arrivals and the old Docklands communities, who have complained of being squeezed out.

In October 1595 Oxford wrote to his brother in law, Sir Robert Cecil of friction between himself and the ill-fated Earl of Essex, partly over his claim to the property, terming him ' the only person that I dare rely upon in the court '.

This was the greatest moment of friction between Fascism and National Socialism and Mussolini himself came down several times to reaffirm the differences in the field.

Another factor inhibiting Chinese investment was the instability caused by friction between the government and the Military, he surmised, and the Fijian embassy in Beijing was continually engaged in damage control.

In a cohabitation situation as with Matti Vanhanen's recent second government right-wing government and left-wing President Tarja Halonen, there can be friction between government ministers and the president.

Dry friction is subdivided into static friction (" stiction ") between non-moving surfaces, and kinetic friction between moving surfaces.

Cantilever walls resist lateral pressures by friction at the base of the wall and / or passive earth pressure, the tendency of the soil to resist lateral movement.

To minimise friction between the citizenry and the soldiers, barracks were constructed, but this did not prevent a gradual movement of part of the population outside the walls, where the modern town of Roses now is.

It does not point out that Joule's experimental arrangement performed essentially irreversible work, through friction of paddles in a liquid, or passage of electric current through a resistance inside the system, driven by motion of a coil and inductive heating, or by an external current source, which can access the system only by the passage of electrons, and so is not strictly adiabatic, because electrons are a form of matter, which cannot penetrate adiabatic walls.

By having the projectile pulled towards or levitated within the center of the coils as it is accelerated, no physical friction with the walls of the bore occurs.

friction with the tube walls ).

Greater than anticipated friction between the water and the tailrace tunnel walls meant reduced hydrodynamic head.

On the other hand, when friction with the side walls or other mechanisms set up a convection roll pattern inside the vibrated container, we found that the convective motion immediately takes over as the dominant mechanism for size separation.

As torque is applied to the gears they are pushed against the walls of the differential housing which creates friction.

Normally, an inanimate rubber ball will slowly lose its kinetic force due to friction, gravity and bouncing off surrounding objects or walls, but Bouncing Boy can use his own muscles to his maintain velocity and power as he bounces about.

A secondary benefit may be some reduction in friction with the cylinder wall, however as most of this is due to the parts of the piston that are left behind, the benefit is minor.

These transverse forces are tolerable in a smaller engine ; a larger engine's much greater forces would cause an intolerable degree of wear on the piston and cylinder, as well as increasing overall friction in the engine.

The shield was made with a slight taper at the front to reduce the friction of the surrounding clay, and the front of the cylinder was stiffened by a cast ‑ iron ring bolted to it ; behind which was a diaphragm, or bulkhead, with a hatchway through which the workers could pass to the face.

For example, an infinitesimal compression of a gas in a cylinder where there exists friction between the piston and the cylinder is a quasistatic, but not reversible process.

The turning force at the wheel may be provided either from a gearing system at the hub ( making use of the presence of e. g. a hub brake, cylinder gear or dynamo ) as per a typical motorcycle, or with a friction wheel device that pushes against the outer edge of the rim ( same position as rim brakes, but on the opposite edge of the fork ) or the sidewall of the tyre itself.

A slightly inclined or horizontal rotating cylinder is partially filled with balls, usually stone or metal, which grinds material to the necessary fineness by friction and impact with the tumbling balls.

The F20C and F22C1 have two overhead cams with roller followers, a ladder-frame main bearing stiffener, a VTEC system for both the intake and exhaust camshaft, Fiber-Reinforced Metal cylinder liners ( FRM ), molybdenum disulfide-coated piston skirts for reduced friction, and uses a timing chain.

In 1852 he invented the split piston ring, which provided a tight seal of the piston against the cylinder with low friction.

The lids of 50-mm-thick copper canisters for nuclear waste are attached to the cylinder by friction stir welding at SKB

When a key was depressed, a little tongue of wood, one end of which stopped the string, was pressed against the revolving cylinder, and the vibrations produced by friction were transmitted to the string and reinforced as in the piano and violin by the soundboard.