Z Wave Wikipedia

Z-Wave - Wikipedia.

Z-Wave is a wireless communications protocol used primarily for residential and commercial building automation. It is a mesh network using low-energy radio waves to communicate from device to device, allowing for wireless control of smart home devices, such as smart lights, security systems, thermostats, sensors, smart door locks, and garage door openers..


Wave packet - Wikipedia.

In physics, a wave packet (or wave train) is a short "burst" or "envelope" of localized wave action that travels as a unit.A wave packet can be analyzed into, or can be synthesized from, an infinite set of component sinusoidal waves of different wavenumbers, with phases and amplitudes such that they interfere constructively only over a small region of space, and destructively elsewhere..


Z-Wave – Wikipedia.

Z-Wave ist ein drahtloser Kommunikationsstandard, der vom Unternehmen Sigma Designs und der Z-Wave Alliance fur die Heimautomation entwickelt wurde. Die Funkkommunikation ist auf geringen Energieverbrauch und hohe Kommunikationssicherheit optimiert. Durch eine umfassende Spezifikation aller Kommunikationsaspekte und eine Zertifizierung der Produkte ....


Standing wave - Wikipedia.

As an example of the second type, a standing wave in a transmission line is a wave in which the distribution of current, voltage, or field strength is formed by the superposition of two waves of the same frequency propagating in opposite directions. The effect is a series of nodes (zero displacement) and anti-nodes (maximum displacement) at fixed points along the transmission ....


Capillary wave - Wikipedia.

A capillary wave is a wave traveling along the phase boundary of a fluid, whose dynamics and phase velocity are dominated by the effects of surface tension.. Capillary waves are common in nature, and are often referred to as ripples.The wavelength of capillary waves on water is typically less than a few centimeters, with a phase speed in excess of 0.2-0.3 meter/second..


Love wave - Wikipedia.

In elastodynamics, Love waves, named after Augustus Edward Hough Love, are horizontally polarized surface waves.The Love wave is a result of the interference of many shear waves guided by an elastic layer, which is welded to an elastic half space on one side while bordering a vacuum on the other side. In seismology, Love waves (also known as Q waves (Quer: German ....


Z code - Wikipedia.

Z Code (like Q Code and X Code) is a set of operating signals used in CW, TTY and RTTY radio communication. There are at least three sets of Z-codes: one originally developed by Cable & Wireless Ltd. (the Cable & Wireless Service Z-Code) for commercial communications in the early days of wire and radio communications, one independently developed by NATO forces later for ....


New wave of British heavy metal - Wikipedia.

The new wave of British heavy metal (commonly abbreviated as NWOBHM) was a nationwide musical movement that started in England in the mid 1970s and achieved international attention by the early 1980s. Journalist Geoff Barton coined the term in a May 1979 issue of the British music newspaper Sounds to describe the emergence of new heavy metal bands in the mid to ....


Wave impedance - Wikipedia.

The wave impedance of an electromagnetic wave is the ratio of the transverse components of the electric and magnetic fields (the transverse components being those at right angles to the direction of propagation). For a transverse-electric-magnetic plane wave traveling through a homogeneous medium, the wave impedance is everywhere equal to the intrinsic impedance of ....


Strain wave gearing - Wikipedia.

Strain wave gearing (also known as harmonic gearing) is a type of mechanical gear system that uses a flexible spline with external teeth, which is deformed by a rotating elliptical plug to engage with the internal gear teeth of an outer spline.. The German company Harmonic Drive SE manufactured the first series-produced gears under the product name or registered trademark ....


Superposition principle - Wikipedia.

The superposition principle, also known as superposition property, states that, for all linear systems, the net response caused by two or more stimuli is the sum of the responses that would have been caused by each stimulus individually.So that if input A produces response X and input B produces response Y then input (A + B) produces response (X + Y).. A function that satisfies ....


Spin wave - Wikipedia.

A spin wave is a propagating disturbance in the ordering of a magnetic material. These low-lying collective excitations occur in magnetic lattices with continuous symmetry.From the equivalent quasiparticle point of view, spin waves are known as magnons, which are bosonic modes of the spin lattice that correspond roughly to the phonon excitations of the nuclear lattice..


Sawtooth wave - Wikipedia.

The sawtooth wave (or saw wave) is a kind of non-sinusoidal waveform.It is so named based on its resemblance to the teeth of a plain-toothed saw with a zero rake angle.A single sawtooth, or an intermittently triggered sawtooth, is called a ramp waveform.. The convention is that a sawtooth wave ramps upward and then sharply drops..


Sonografie – Wikipedia.

Sonografie oder Sonographie, auch Echografie und Ultraschalluntersuchung, oder umgangssprachlich ,,Ultraschall", genannt, ist ein bildgebendes Verfahren mit Anwendung von Ultraschall zur Untersuchung von organischem Gewebe in der Medizin und Veterinarmedizin sowie von technischen Strukturen.. Das Ultraschallbild wird auch Sonogramm genannt..


Bose shelf stereos - Wikipedia.

The first "Wave" product was the "Acoustic Wave Music System" (AWMS-1), which was a tabletop mini-hifi system that was introduced in 1984. The AWMS-1 consisted of an AM/FM radio, cassette player, two 2-inch tweeters, and a four inch woofer. In 1987, Amar Bose and William Short won the Inventor of the Year award from Intellectual Property Owners for the waveguide loudspeaker ....


Normal mode - Wikipedia.

A normal mode of an oscillating system is a pattern of motion in which all parts of the system move sinusoidally with the same frequency and with a fixed phase relation. The free motion described by the normal modes takes place at fixed frequencies. These fixed frequencies of the normal modes of a system are known as its natural frequencies or resonant frequencies..


Wave function collapse - Wikipedia.

In quantum mechanics, wave function collapse occurs when a wave function--initially in a superposition of several eigenstates--reduces to a single eigenstate due to interaction with the external world. This interaction is called an observation, and is the essence of a measurement in quantum mechanics, which connects the wave function with classical observables such as ....


Gaussian function - Wikipedia.

for arbitrary real constants a, b and non-zero c.It is named after the mathematician Carl Friedrich Gauss.The graph of a Gaussian is a characteristic symmetric "bell curve" shape.The parameter a is the height of the curve's peak, b is the position of the center of the peak, and c (the standard deviation, sometimes called the Gaussian RMS width) controls the width of the "bell"..


Ground-effect vehicle - Wikipedia.

A ground-effect vehicle (GEV), also called a wing-in-ground-effect (WIG), ground-effect craft, wingship, flarecraft or ekranoplan (Russian: ?????????? - "screenglider"), is a vehicle that is able to move over the surface by gaining support from the reactions of the air against the surface of the earth or water. Typically, it is designed to glide over a level surface (usually over ....


Dot-com bubble - Wikipedia.

The dot-com bubble, also known as the dot-com boom, the tech bubble, and the Internet bubble, was a stock market bubble in the late 1990s, a period of massive growth in the use and adoption of the Internet.. Between 1995 and its peak in March 2000, the Nasdaq Composite stock market index rose 400%, only to fall 78% from its peak by October 2002, giving up all its gains during ....