E& g mast

The Mikulski Archive for Space Telescopes (MAST) is a NASA funded project to support and provide to the astronomical community a variety of astronomical data archives , with the primary focus on scientifically related data sets in the optical, ultraviolet, and near-infrared parts of the spectrum. MAST is located at the Space Telescope Science Institute (STScI).


Search Using the MAST Data Discovery Portal

  • MAST Cross-Mission Search
  • Integrated 3D All-Sky Viewer
  • Access to Data from other Archives
  • User's Guide

  Enter Target Name (or Coordinates) :      Names of objects are passed to a name resolver that associates known object names with sky coordinates. A wide variety of catalog and common names can be resolved to known objects. Coordinates may be given in a variety of formats; right ascensions must be positive and southern declinations require a leading negative sign. Examples of valid names and coordinate formats are given below. A search radius may be specified by appending "r=" and the radius in arcseconds, arcminutes, or degrees (. "r=.2d", "r=5m", "r=1s").

Antihistamine drugs act by blocking the action of histamine on nerve endings. Cromoglicate-based drugs (sodium cromoglicate, nedocromil) block a calcium channel essential for mast cell degranulation, stabilizing the cell and preventing release of histamine and related mediators. Leukotriene antagonists (such as montelukast and zafirlukast) block the action of leukotriene mediators, IgE antibody (omalizumab) also inhibits the binding of free IgE to the high-affinity IgE receptor (FcεRI) on the surface of mast cells and basophils, and are being used increasingly in allergic diseases.

Modern masts form the leading edge of a sail's airfoil and tend to have a teardrop-shaped cross-section. On smaller racing yachts and catamarans, the mast rotates to the optimum angle for the sail's airfoil. If the mast has a long, thin cross-section and makes up a significant area of the airfoil, it is called a wing-mast; boats using these have a smaller sail area to compensate for the larger mast area. There are many manufacturers of modern masts for sailing yachts of all sizes, a few notable companies are Hall Spars, Offshore Spars , and Southern Spars.

E& g mast

e & g mast

Media:

e & g maste & g maste & g maste & g maste & g mast