ScienceJohn Michels (Journalist) 1948 |
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Стр. 143
... light is required , we had the surface of the B & L spherical lamp housing reflector aluminized by the Alzak process and then sub- stituted two spherical quartz condensers in place of those originally supplied . This , however , is not ...
... light is required , we had the surface of the B & L spherical lamp housing reflector aluminized by the Alzak process and then sub- stituted two spherical quartz condensers in place of those originally supplied . This , however , is not ...
Стр. 189
... light - scattering measurements were made with a simple apparatus which employs the 546 - mu line of a mer- cury vapor lamp as light source and a photomultiplier tube for registering intensities of scattered light . We have determined ...
... light - scattering measurements were made with a simple apparatus which employs the 546 - mu line of a mer- cury vapor lamp as light source and a photomultiplier tube for registering intensities of scattered light . We have determined ...
Стр. 362
... light intensity in the microscopic field . The tech- nique involves the calibration of the instrument for ex- posure time at various light intensities , using physical methods , all of which are available to the average labo- ratory ...
... light intensity in the microscopic field . The tech- nique involves the calibration of the instrument for ex- posure time at various light intensities , using physical methods , all of which are available to the average labo- ratory ...
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