If such an Interstellar Internet exists, the hypothesis states, communications between servers are mostly through narrow-band, highly directional radio or laser links.

If the directional shear between the body of water and the vertical height at which the pressure measures is between 30 and 60 degrees, weak lake-effect bands are possible.

If f is a smooth function, then the exterior derivative of f is the differential of f. That is, df is the unique one-form such that for every smooth vector field X,, where Xf is the directional derivative of f in the direction of X.

A differential 0-form (" zero form ") is defined to be a smooth function f on U. If v is any vector in R < sup > n </ sup >, then f has a directional derivative ∂< sub > v </ sub > f, which is another function on U whose value at a point p ∈ U is the rate of change ( at p ) of f in the v direction:

If it's considered formal communications as they occur in traditional military organizations, messages have a " one-way " directional characteristic.

If the collisions of body A and the gravific particles are fully elastic, the intensity of the reflected particles would be as strong as of the incoming ones, so no net directional force would arise.

) If the function f is differentiable at x, then the directional derivative exists along any unit vector u, and one has

Let M be a differentiable manifold and p a point of M. Suppose that f is a function defined in a neighborhood of p, and differentiable at p. If v is a tangent vector to M at p, then the directional derivative of f along v, denoted variously as ( see covariant derivative ), ( see Lie derivative ), or ( see Tangent space # Definition via derivations ), can be defined as follows.

If the normal direction is denoted by, then the directional derivative of a function ƒ is sometimes denoted as.

If the speech is in front of the listener and the noise is from a different direction, then compared to an omnidirectional microphone, a directional microphone provides a better signal to noise ratio.

If all except one of the scale factors are equal to 1, we have directional scaling.

If built, the transmitter will interfere with Windsor, Ontario station CIDR-FM in much of the Greater Detroit area, though the licensee contends that the transmitter will be directional, as to not interfere with CIDR-FM on the Canadian side of the border.

If the vertical shaft is locked but the wheel can still turn, the caster becomes a directional caster, but one which may be locked to roll in one direction along any horizontal axis.

If multiple tires aquaplane, the vehicle may lose directional control and slide until it either collides with an obstacle, or slows enough that one or more tires contact the road again and friction is regained.

If sound is presented through headphones, and has been recorded via another head with different-shaped outer ear surfaces, the directional patterns differ from the listener's own, and problems will appear when trying to evaluate directions in the median plane with these foreign ears.

If such a niche is already occupied, competitive pressure may oppose the directional selection.

If the noise is uncorrelated and there are no directional interferences, the signal-to-noise ratio of a beamformer with antennas receiving a signal of power is, where is Noise variance or Noise power.

If the gamer opts for manual goalkeeper control, the player would have to make a save by guessing where the opponent will place the ball and jumping into the general direction with any of the console buttons and the directional keys if applicable.

If a dragon appears, kill it by pressing the directional pad where that dragon is.

If war viewing is done on foot, then sometimes a directional antenna like a patch antenna or yagi antenna is used to try and pinpoint the exact location of a transmitter, and to cut down on interference.

If the patch is square, the pattern in the horizontal plane will be directional, somewhat as if the patch were a pair of dipoles separated by a half-wave ; this counts for about another 2-3 dB.

If a series of diffusion gradients ( i. e. magnetic field variations in the MRI magnet ) are applied that can determine at least 3 directional vectors ( use of 6 different gradients is the minimum and additional gradients improve the accuracy for " off-diagonal " information ), it is possible to calculate, for each voxel, a tensor ( i. e. a symmetric positive definite 3 × 3 matrix ) that describes the 3-dimensional shape of diffusion.

If the " Silent Scope " mode is chosen with the mode selector, the player can control the scope with the 8-way directional pad at the side like with the analog stick on the normal pad.

If Af is the change per unit volume in Gibbs function caused by the shear field at constant P and T, and **yr is the density of the fluid, then the total potential energy of the system above the reference height is Af.

If low level wind shear is strong enough, the rotation can be turned vertically or diagonally and make contact with the ground.

If there is enough low level wind shear, the column of hot, rising air can develop a small cyclonic motion that can be seen near the ground.

If the shear line becomes active with thunderstorms, it may support formation of a tropical storm or a regeneration of the feature back into a stationary front.

If the wind shear is of sufficient magnitude, a bird can climb into the wind gradient, trading ground speed for height, while maintaining airspeed.

If the wind encounters distortions in the inversion layer caused by thermals coming up from below, it will create significant shear waves that can be used for soaring.

If the cohesive strength of the substrate is lower than the shear exerted, or the bed is composed of loose sediment which can be mobilized by such stresses, then the bed will be lowered purely by clearwater flow.

If slip-critical connections fail ( by slipping ), they revert to bearing-type connections, with structural forces now transferred through bolt shear and connection plate bearing.

If the expected improvements in mechanical properties bear out, the traditional limits seen on glazing areas in today's building codes could quickly become outdated if the window area actually contributes to the shear resistance of the wall.

If the fluid is incompressible and viscosity is constant across the fluid, the equation governing the shear stress, in the Cartesian coordinate system, is the tensor

If a sensor could directly measure the gradient of the velocity profile at the wall, then multiplying by the dynamic viscosity would yield the shear stress.

If the pressure at one end of a pipe is increased this produces a stress on the fluid tending to make it move ( called the shear stress ) and the volumetric flow rate increases proportionally.

If the wind encounters distortions in the inversion layer caused by thermals coming up from below, it will create significant shear waves in the lee of the distortions that can be used for soaring.

If the fluid is compressed in the magnetic field direction and the compressive stress is 2 MPa, the shear strength is raised to 1100 kPa.

If the standard magnetic particles are replaced with elongated magnetic particles, the shear strength is also improved.

If stress reversal occurs, the effective shear stress could reach zero, then cyclic liquefaction can take place.

If it were a fragile solid, it would respond plastically to shear stress, however small.

If the lower chord ( a horizontal member of a truss ) is sufficiently resistant to bending and shear, the outer vertical elements may be eliminated, but with additional strength added to other members in compensation.

If the placenta does overlie the lower segment, as is the case with placenta praevia, it may shear off and a small section may bleed.

If the blocking or nailing is inadequate, each beam can be laid flat by the shear forces applied to the building.

If we consider a polarization of a shear ( transverse ) elastic wave propagating along an acoustic axis in a solid, a polarization rotation effect due to rotation of the body as a whole ( so-called, " polarization inertia effect ") can be observed too ( it was noted by Ukrainian scientist Sergii A. Sarapuloff in early 80th, as well as a corresponding modification of Green-Christoffel's tensors in Acoustics ).

If a thunderstorm runs into an outflow boundary, the low-level wind shear from the boundary can cause thunderstorms to exhibit rotation at the base of the storm, at times causing tornadic activity.

If the machine has a manual hold down that must be turned down by hand, check your part to see if it's square to the blades and turn the hold down firmly against the part otherwise you are ready to shear.