search:near field far field相關網頁資料

- en.wikipedia.org
  
  Near field communication - Wikipedia, the free encyclopedia
  
  Near field communication (NFC) is a set of standards for smartphones and similar devices to establish radio communication with each other by touching them together or bringing them into proximity, usually no more than a few inches. Present and anticipated
  
  2024-06-15
  
  瀏覽：950
- en.wikipedia.org
  
  Depth of field - Wikipedia, the free encyclopedia
  
  In optics, particularly as it relates to film and photography, depth of field (DOF) is the distance between the nearest and farthest objects in a scene that appear acceptably sharp in an image. Although a lens can precisely focus at only one distance at a
  
  2024-06-10
  
  瀏覽：1383

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SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth

日期：2024-06-10

QUIET WITH A CHANCE OF FLARES: Solar activity has been low for days. The sunspot most likely to break the quiet is AR2230. Not only is the sunspot growing rapidly, but also it has an unstable 'beta-gamma' magnetic field that harbors energy for M-class sol...

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Thadhagadhan

日期：2024-06-14

Shadi-Bagiar-at-the-entrance-to-the-Khyber-Pass,-taken-by-John-Burke-in-1878...

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Field of Dreams (1989) - IMDb

日期：2024-06-11

Directed by Phil Alden Robinson. With Kevin Costner, Amy Madigan, Gaby Hoffmann, Ray Liotta. An Iowa corn farmer, hearing voices, interprets them as a command to build a baseball diamond in his fields; he does, and the Chicago Black Sox come....

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Antenna-Theory.com - Field Regions

日期：2024-06-12

Field regions for the radiation pattern of antennas are discussed The far field and near field in particular, are defined in terms of distance from an antenna....

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NEAR-FIELD Near-field vs Far-field - Keysight

日期：2024-06-13

Any antenna can be successfully measured on either a near-field or far-field range, with ... this makes generalized comparisons between near-field and far-field ......

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ANTENNA NEAR FIELD

日期：2024-06-14

This is why the far field wave front is considered planar and ... crossover distance between near and far fields (R ) is taken to be where the phase error is 1/16 of ......

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Near Field versus Far Field – NearFieldCommunication.org

日期：2024-06-16

Near field and far field communications both rely on electromagnetic fields to transmit information, but a key difference sets NFC apart from far field ......

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Scientific Evidence Supporting Near-Death Experiences and the Afterlife

日期：2024-06-15

Scientific evidence supporting near-death experiences, the afterlife and survival after death. ... Dr. Bruce Greyson documented perhaps one of the most compelling examples of a person who had a NDE and observed events while outside of his body which were ...

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