Some distributions for a 2-identical-unit system

1983 ◽  
Vol 14 (4) ◽  
pp. 607-616
Author(s):  
D.P. Wiens
Keyword(s):  
Unit System ◽  
Identical Unit

Two-non-identical unit-system with priority-based repair and inspection

1996 ◽  
Vol 36 (2) ◽  
pp. 279-282 ◽  
Author(s):  
R.K. Agnihotri ◽  
S.K. Satsangi
Keyword(s):  
Unit System ◽  
Identical Unit

Measurement and Reduction of Radiation Damage in Frozen Hydrated Crystalline Specimens

1978 ◽  
Vol 36 (3) ◽  
pp. 70-77 ◽  
Author(s):  
R.M. Glaeser ◽  
S.B. Hayward
Keyword(s):  
Diffraction Pattern ◽  
Structural Information ◽  
Structural Disorder ◽  
Structural Features ◽  
Biological Macromolecules ◽  
Diffraction Intensity ◽  
Object Structure ◽  
Specimen Material ◽  
Unit Cells ◽  
Identical Unit

Highly ordered or crystalline biological macromolecules become severely damaged and structurally disordered after a brief electron exposure. Evidence that damage and structural disorder are occurring is clearly given by the fading and eventual disappearance of the specimen's electron diffraction pattern. The fading and disappearance of sharp diffraction spots implies a corresponding disappearance of periodic structural features in the specimen. By the same token, there is a oneto- one correspondence between the disappearance of the crystalline diffraction pattern and the disappearance of reproducible structural information that can be observed in the images of identical unit cells of the object structure. The electron exposures that result in a significant decrease in the diffraction intensity will depend somewhat upon the resolution (Bragg spacing) involved, and can vary considerably with the chemical makeup and composition of the specimen material.

Some changes during the initial phase of the unit system in a large mental hospital

1966 ◽  
Author(s):  
Robert P. Barrell ◽  
Alan S. DeWolfe ◽  
Fred E. Spaner
Keyword(s):  
Initial Phase ◽  
Mental Hospital ◽  
Unit System

A Unit System of Freight Transportation

1920 ◽  
Vol 123 (24) ◽  
pp. 595-595
Author(s):  
Charles N. Winter
Keyword(s):  
Freight Transportation ◽  
Unit System
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