Zobrazeno 1 - 10
of 19
pro vyhledávání: '"S. Reid Warren"'
Publikováno v:
Administration in Social Work. 4:97-104
The authors discuss field work education of social administration students from the point of view of management and supervision. Field work is analyzed within the context of the philosophy of social work education, the agency's resources and potentia
Autor:
S. Reid Warren, Charles Weyl
Publikováno v:
Radiology. 17:946-951
An apparatus of simple construction and low cost for comparing the density of developed X-ray film with a standard of density is described. The paper is divided into two sections: first, a description of the external mechanical features and method of
Autor:
Jr. S. Reid Warren
Publikováno v:
Radiology. 28:450-465
Introduction THE shadows of the heart and of the parenchyma of the lungs are unsharp, or blurred in chest roentgenograms. The greatest part of this unsharpness is commonly attributed to three phenomena: 1. Roentgen rays emanate from a finite area, th
Publikováno v:
Radiology. 19:105-109
This paper discusses the advantages and disadvantages of single valve rectified versus mechanically rectified radiographic apparatus. Conclusions are presented which should aid the roentgenologist in choosing such apparatus.
Autor:
Jr. S. Reid Warren
Publikováno v:
Proceedings of the IRE. 18:544-547
This paper describes briefly the use of one UX-222 four-electrode vacuum tube as a double oscillator and detector. Audio-frequency output is obtained in the beat note between the fundamental of the oscillation due to one grid and the second harmonic
Publikováno v:
Radiology. 21:546-555
IntroductionTHE progress of the radiologist in his attempts to follow the course of disease by means of radiographic diagnosis is often impeded because radiographs taken at different times in his own laboratory are not comparable. The lack of compara
Autor:
S. Reid Warren
Publikováno v:
Electrical Engineering. 65:499-507
With the growing use of X rays and gamma rays in the inspection of industrial products, it becomes increasingly important to acquaint both engineers and workers with the dangers to personnel engendered by the rays and with methods of protection from
Publikováno v:
Radiology. 29:64-78
IntroductionTHE maintenance of a high standard of roentgenographs output depends upon the following general factors: Calibration and positioning of the patient; Characteristics of permanent equipment such as power supply lines and transformers, high
Autor:
S. Reid Warren
Publikováno v:
IEEE Transactions on Education. :69-71
It is more important that the courses in humanities taken by students of engineering stimulate their further curiosity and interest than it is to inform them concerning specific facts and ideas. On the other hand the approach in such courses must be
Publikováno v:
Radiology. 23:102-104
For the solution of a particular problem2 it became necessary to design an instrument for measuring accurately to one-thousandth of a second the time interval between the instant of the beginning of a pulse of air produced by manual impulse of a leve