scholarly journals Cosine response of an Indian pyranometer

MAUSAM ◽  
2021 ◽  
Vol 48 (1) ◽  
pp. 23-28
Author(s):  
V. DESlKAN ◽  
V.V. KANADE
Keyword(s):  
Temperature Coefficient ◽  
Spectral Response ◽  
Radiation Laboratory ◽  
Cosine Law

ABSTRACT .The performance of a pyranometer depends on various characteristics like spectral response, linearity of output. temperature coefficient and dir~tional response" The departure from the cosine law is one of the most difficult to correct for and even to determine individually" The Central Radiation Laboratory has carried out the determination of cosine error at Pune. The results of such a measurement on an Indian made thermoelectric pyranometer are IX"esented and discussed"    

REACTIONS OF ARYLSULPHONIC ESTERS: VII. THE HEAT CAPACITY OF ACTIVATION FOR THE ETHANOLYSIS OF METHYL p-NITROBENZENESULPHONATE

1957 ◽  
Vol 35 (7) ◽  
pp. 623-629 ◽  
Author(s):  
J. B. Hyne ◽  
R. E. Robertson
Keyword(s):  
Heat Capacity ◽  
Temperature Coefficient ◽  
Nonaqueous Media ◽  
Conductometric Method ◽  
Better Than

A conductometric method is described for the determination of rates of solvolyses in nonaqueous media with an accuracy of better than ± 0.5% in k. The heat of activation derived from the results so obtained is shown to have a temperature coefficient (ΔCp‡) of −21 cal./mole deg.

Thermal lens determination of the temperature coefficient of optical path length in optical materials

2003 ◽  
Vol 74 (1) ◽  
pp. 877-880 ◽  
Author(s):  
A. A. Andrade ◽  
T. Catunda ◽  
I. Bodnar ◽  
J. Mura ◽  
M. L. Baesso
Keyword(s):  
Temperature Coefficient ◽  
Thermal Lens ◽  
Path Length ◽  
Optical Materials ◽  
Optical Path Length ◽  
Optical Path

scholarly journals Boundary lubrication.—The temperature coefficient

1922 ◽  
Vol 101 (713) ◽  
pp. 487-492 ◽  
Keyword(s):  
Experimental Method ◽  
Temperature Coefficient ◽  
Boundary Lubrication ◽  
Static Friction ◽  
Effect Of Temperature ◽  
Dry Air ◽  
Electric Grids ◽  
Continuous Sheet ◽  
A Current

The experimental method employed was that described in earlier papers. A slider having a spherical face is made to slide over a plate in an atmosphere of rigorously clean and dry air. The friction measured is static friction and the object of the experiments the determination of the effect of temperature. This has now been studied over a range of 15°C. to 110°C., and it may be said at once that the relations discovered are of a totally unexpected character. More than one attempt to study the effect of temperature was defeated by the fact that lubricating vapours were given off from the walls of the chamber in which the plate and slider were enclosed. This difficulty was completely removed by using a chamber with double walls, the inner wall being a continuous sheet of nickel. Between the walls were placed the electric grids for heating the chamber. The stream of dry air with which the chamber was flooded was also heated by being passed through a tube of silica, which was maintained at the required temperature by a coil of wire through which a current was passing. The temperature of the stream of air and the temperature of the chamber were recorded electrically.

scholarly journals The spectral response of a phosphor to infra-red radiation

1949 ◽  
Vol 196 (1047) ◽  
pp. 554-562 ◽  
Keyword(s):  
Room Temperature ◽  
Spectral Response ◽  
Cadmium Sulphide ◽  
Air Temperatures ◽  
Infra Red ◽  
Zinc Cadmium ◽  
Temperature Radiation ◽  
First Time ◽  
Red Radiation

A determination of the infra-red spectral response of a copper-activated zinc cadmium sulphide phosphor at normal and at liquid air temperatures is described. Peaks in sensitivity at wave-lengths of 2·1 and 2·7 μ are observed directly for the first time and are correlated with glow-curve data. The incidence of room temperature radiation on a phosphor at liquid air temperature is shown to make the observation of sensitivity beyond 3 μ impracticable.

A new method for testing the force of clips for aneurysms or experimental spinal cord compression

1979 ◽  
Vol 51 (2) ◽  
pp. 229-233 ◽  
Author(s):  
Eugen J. Dolan ◽  
Charles H. Tator
Keyword(s):  
Spinal Cord ◽  
Early Detection ◽  
Spinal Cord Compression ◽  
Cord Compression ◽  
New Method ◽  
Content Type ◽  
Cosine Law ◽  
Fine Print

✓ A new method is described for the determination of force-distance curves for aneurysm clips. A dissecting microscope with a goniometer eyepiece was used to determine the angle between the clip blades as various forces were applied to open the clip. The cosine law was then used to calculate the force-distance curves. The method allows accurate characterization of different clips and is especially useful for the early detection of clip weakening.

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