Automatic Temperature Regulation for the X-Ray Dark Room Solutions

Radiology ◽  
1934 ◽  
Vol 22 (5) ◽  
pp. 539-547 ◽  
Author(s):  
W. Edward Chamberlain ◽  
George C. Henny
Keyword(s):  
Temperature Regulation ◽  
Automatic Temperature ◽  
X Ray ◽  
Dark Room

Automatic temperature regulation in tunnel-type dryers

Refractories ◽  
1961 ◽  
Vol 2 (7-8) ◽  
pp. 314-316
Author(s):  
I. A. Alekseyev ◽  
V. A. Starokon' ◽  
A. P. Larenkov
Keyword(s):  
Temperature Regulation ◽  
Automatic Temperature

LUMINOGRAPHIC VISUALIZATION OF VON WILLEBRAND FACTOR MULTIMERS

1987 ◽  
Author(s):  
R Schneppenheim ◽  
H Plendl ◽  
U Budde
Keyword(s):  
Shelf Life ◽  
Von Willebrand Factor ◽  
Tris Buffer ◽  
Rabbit Antibody ◽  
X Ray ◽  
Color Development ◽  
Normal Plasma ◽  
Von Willebrand ◽  
Willebrand Factor ◽  
Dark Room

Current methods for visualization of vWF multimers use either autoradiography or enzymatic color development. Radioactive methods bear some risks for laboratory personal and the radioactive antibodies have a relatively short shelf life. Enzyme labelled antibodies used with their usual substrates are less sensitive even with relatively large amounts of antibody.These drawbacks can be overcome by using peroxidase labelled antibodies and luminol for visualization of vWF multimers. Electrophoresis in LGT agarose and immunoblot on nitrocellulose were performed as described in the literature. The nitrocellulose sheets were immersed in polyclonal anti-vWF antibody (1:500) followed by a peroxidase labelled anti-rabbit antibody (1:500). The subsequent procedures were performed in a dark room. The gels were overlaid by 40 mg luminol suspended in 100 ml TRIS buffer (pH 7.5) and covered with a thin transparent foil. The luminiscence could be detected visually for about 40 minutes. There was enough time to expose up to 10 x-ray films by simply placing the films for some seconds onto the transparent foil.The method is sensitive enough to allow 1:200 dilutions of normal plasma. Thus plasmas containing substantially less than 10% vWF protein can be evaluated with this method.

A Portable Dark Room for Processing X-ray Films Rapidly

Radiology ◽  
1941 ◽  
Vol 37 (6) ◽  
pp. 740-742
Author(s):  
Clifford Jones
Keyword(s):  
X Ray ◽  
Dark Room

scholarly journals Automatic Temperature Regulation System of Locomotive Traction Induction Motors With Power Losses Minimization

2015 ◽  
Vol 9 (1) ◽  
Author(s):  
A. S. Kosmodamianskiy ◽  
V. I. Vorobiev ◽  
A. A. Pugachev
Keyword(s):  
Induction Motor ◽  
Temperature Regulation ◽  
Induction Motors ◽  
Frequency Converter ◽  
Operating Mode ◽  
Regulation System ◽  
Air Cooling ◽  
Power Losses ◽  
Automatic Temperature ◽  
Stator Current

The air cooling systems are shown to be used to provide required temperature condition of traction induction motors on locomotives. The automatic temperature regulation system is developed for its using to solve such a task. Results of experimental investigation showed that the AO63-4 induction motor stator end winding on the side opposite to air supply is the most heated part of the induction motor. Based on the results of the research, it was used an aperiodic second-order transfer function for approximation of the thermal transient curves. The design of an induction motor control system maintaining operating mode with minimum of the stator current are considered. It is shown that the modes of minimum of the stator current and minimum of power losses are quite close to each other. The MatLab simulation results taking typical nonlinearities and iron power losses in an induction motor and conduction and commutation power losses in semiconductors of frequency converter into account are presented. It is shown that as a result of application of the suggested system the power losses reduction may be led up to 20 % relatively to classical scalar control.

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