irrotational vibrations - определение. Что такое irrotational vibrations
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Что (кто) такое irrotational vibrations - определение

CONCEPT IN VECTOR CALCULUS
Irrotational; Irrotational field; Gradient field; Potential vector field; Conservative field; Curl free field; Curl-free vector field; Irrotational vector field; Irrotational flow; Irrotational Flow
  •  '''E''', electric field strength
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  • The above vector field <math>\mathbf{v} = \left( - \frac{y}{x^2 + y^2},\frac{x}{x^2 + y^2},0 \right)</math> defined on <math>U = \R^3 \setminus \{ (0,0,z) \mid z \in \R \}</math>, i.e., <math>\R^3</math> with removing all coordinates on the <math>z</math>-axis (so not a simply connected space), has zero curl in <math>U</math> and is thus irrotational. However, it is not conservative and does not have path independence.
  • Line integral paths used to prove the following statement: if the line integral of a vector field is path-independent, then the vector field is a conservative vector field.
  • Depiction of two possible paths to integrate. In green is the simplest possible path; blue shows a more convoluted curve
Найдено результатов: 59
Seismic noise         
GENERIC NAME FOR A RELATIVELY PERSISTENT VIBRATION OF THE GROUND
Ambient vibration; Ambient Vibrations; Ambient vibrations; 26-second pulse
In geophysics, geology, civil engineering, and related disciplines, seismic noise is a generic name for a relatively persistent vibration of the ground, due to a multitude of causes, that is often a non-interpretable or unwanted component of signals recorded by seismometers.
Laplace equation for irrotational flow         
DIFFERENTIAL EQUATION IN FLUID MECHANICS
Laplace’s equation for irrotational flow
Irrotational flow occurs where the curl of the velocity of the fluid is zero everywhere. That is when
Ricky Owens         
AMERICAN SOUL GROUP
The Vibrating Vibrations; Ricky Owens; The Marathons; The Jay Hawks; The Jayhawks (doo wop)
Ricky Owens (born Richard Edgar Owens in St. Louis, Missouri) (April 24, 1939 - December 6, 1996) was an American R&B and soul singer better known as the first tenor and lead singer of the doo-wop/R&B group The Vibrations and, briefly, as member of The Temptations, the first replacement of original Temptations founding member Eddie Kendricks.
The Vibrations         
AMERICAN SOUL GROUP
The Vibrating Vibrations; Ricky Owens; The Marathons; The Jay Hawks; The Jayhawks (doo wop)
The Vibrations were an American soul vocal group from Los Angeles, California, active from the mid-1950s to 1976. Most notable among the group's hit singles were "My Girl Sloopy" (1964) and "Love in Them There Hills" (1968).
Phantom vibration syndrome         
PERCEPTION THAT ONE'S MOBILE PHONE IS VIBRATING OR RINGING WHEN IT IS NOT
Phantom ring; Rinxiety; Fauxcellarm; Phantom ring effect; Phantom mobile device vibration; Ringxiety; Ringziety; Phantom rings; Ghost cell phone vibration; Ghost cell phone vibrations; Ghost cellphone vibration; Ghost cellphone vibrations; Ghost mobile vibrations; Ghost mobile vibration; Ghost mobile device vibrations; Ghost mobile device vibration; Phantom cellphone vibrations; Phantom cellphone vibration; Phantom mobile vibration; Phantom mobile vibrations; Phantom phone vibrations; Phantom phone vibration; Phantom ringing; Phantom Vibration Syndrome; Phantom pager syndrome; Phantom ringing syndrome
Phantom vibration syndrome or phantom ringing syndrome is the perception that one's mobile phone is vibrating or ringing when it is not. Other terms for this concept include ringxiety (a portmanteau of ring and anxiety), fauxcellarm (a portmanteau of "[/fo͜ʊ/ meaning "fake]" or "[and "[[cellphone]" and "[[alarm" pronounced similarly to "false alarm") and phonetom (a portmanteau of phone and phantom).
Molecular vibration         
  • dissociation energy]] here, r<sub>0</sub> [[bond length]], U [[potential energy]]. Energy is expressed in [[wavenumber]]s. The hydrogen chloride molecule is attached to the coordinate system to show bond length changes on the curve.
PERIODIC MOTION OF THE ATOMS OF A MOLECULE
Vibrational transition; Vibrational spectroscopic; Vibrational frequency; Vibration spectrum; Atomic vibration; Vibrational spectrum; Molecular vibrations; Scissoring (chemistry); Vibrating molecule; Vibrational quantum number
A molecular vibration is a periodic motion of the atoms of a molecule relative to each other, such that the center of mass of the molecule remains unchanged. The typical vibrational frequencies range from less than 1013 Hz to approximately 1014 Hz, corresponding to wavenumbers of approximately 300 to 3000 cm−1 and wavelengths of approximately 30 to 3 µm.
Irrotational         
·adj Not rotatory; passing from one point to another by a movement other than rotation;
- said of the movement of parts of a liquid or yielding mass.
Balancing of rotating masses         
  • Rotating shaft unbalanced by two identical attached weights, which causes a counterclockwise centrifugal couple ''Cd'' that must be resisted by a clockwise couple ''Fℓ'' = ''Cd'' exerted by the bearings. The figure is drawn from the viewpoint of a frame rotating with the shaft, hence the centrifugal forces.
Balancing vibrations; Balancing Vibrations
The balancing of rotating bodies is important to avoid vibration. In heavy industrial machines such as gas turbines and electric generators, vibration can cause catastrophic failure, as well as noise and discomfort.
Conservative vector field         
In vector calculus, a conservative vector field is a vector field that is the gradient of some function. A conservative vector field has the property that its line integral is path independent; the choice of any path between two points does not change the value of the line integral.
reassemble         
2016 STUDIO ALBUM BY A DAY TO REMEMBER
Bad Vibrations (song); Naivety (song); Exposed (song); Bullfight (A Day to Remember song); Reassemble; Reassemble (song); We Got This (song); Same About You; Turn Off the Radio (song); Forgive and Forget (A Day to Remember song); Negative Space (song); In Florida; We Got This (single); Justified (A Day to Remember song)
¦ verb assemble again; put back together.
Derivatives
reassembly noun

Википедия

Conservative vector field

In vector calculus, a conservative vector field is a vector field that is the gradient of some function. A conservative vector field has the property that its line integral is path independent; the choice of any path between two points does not change the value of the line integral. Path independence of the line integral is equivalent to the vector field under the line integral being conservative. A conservative vector field is also irrotational; in three dimensions, this means that it has vanishing curl. An irrotational vector field is necessarily conservative provided that the domain is simply connected.

Conservative vector fields appear naturally in mechanics: They are vector fields representing forces of physical systems in which energy is conserved. For a conservative system, the work done in moving along a path in a configuration space depends on only the endpoints of the path, so it is possible to define potential energy that is independent of the actual path taken.