Data requirements for the mapping of ultrasonic fields with conventional light diffraction

1975 ◽  
Vol 58 (4) ◽  
pp. 823-827 ◽  
Author(s):  
Joel C. Berlinghieri ◽  
Bill D. Cook
Keyword(s):  
Light Diffraction ◽  
Ultrasonic Fields ◽  
Data Requirements

Analysis of Ultrasonic Fields by Light Diffraction

1973 ◽  
Vol 51 (12) ◽  
pp. 1341-1349 ◽  
Author(s):  
J. Vrba ◽  
R. R. Haering
Keyword(s):  
Light Scattering ◽  
Ultrasonic Wave ◽  
Propagation Direction ◽  
Index Of Refraction ◽  
Light Diffraction ◽  
Strain Fields ◽  
Wave Fields ◽  
Ultrasonic Fields ◽  
The Relationship ◽  
Hexagonal Crystals

It is shown how the frequency, wavelength, intensity, and propagation direction of waves present in ultrasonic wave fields may be determined by light scattering experiments. The relationship between index of refraction variations and arbitrary strain fields is developed for hexagonal crystals and explicit results valid for CdS crystals are presented.

MEASURE AND VIZUALIZATION IN THE NEAR ZONES OF TRANSIENT ULTRASONIC FIELDS GENERATED BY BROADBAND TRANSDUCERS IN LIQUID MEDIA

1990 ◽  
Vol 51 (C2) ◽  
pp. C2-603-C2-606 ◽  
Author(s):  
E. RIERA-FRANCO DE SARABIA ◽  
A. RAMOS-FERNANDEZ ◽  
L . GOMEZ-ULLATE
Keyword(s):  
Liquid Media ◽  
Ultrasonic Fields

Postmarketing Surveillance Based on Electronic Patient Records: The IPCI Project

1999 ◽  
Vol 38 (04/05) ◽  
pp. 339-344 ◽  
Author(s):  
J. van der Lei ◽  
B. M. Th. Mosseveld ◽  
M. A. M. van Wijk ◽  
P. D. van der Linden ◽  
M. C. J. M. Sturkenboom ◽  
...  
Keyword(s):  
General Practitioner ◽  
General Practitioners ◽  
Validation Studies ◽  
Resource Planning ◽  
Routine Practice ◽  
Patient Records ◽  
Postmarketing Surveillance ◽  
Electronic Patient Records ◽  
Use Of Data ◽  
Data Requirements

AbstractResearchers claim that data in electronic patient records can be used for a variety of purposes including individual patient care, management, and resource planning for scientific research. Our objective in the project Integrated Primary Care Information (IPCI) was to assess whether the electronic patient records of Dutch general practitioners contain sufficient data to perform studies in the area of postmarketing surveillance studies. We determined the data requirements for postmarketing surveil-lance studies, implemented additional software in the electronic patient records of the general practitioner, developed an organization to monitor the use of data, and performed validation studies to test the quality of the data. Analysis of the data requirements showed that additional software had to be installed to collect data that is not recorded in routine practice. To avoid having to obtain informed consent from each enrolled patient, we developed IPCI as a semianonymous system: both patients and participating general practitioners are anonymous for the researchers. Under specific circumstances, the researcher can contact indirectly (through a trusted third party) the physician that made the data available. Only the treating general practitioner is able to decode the identity of his patients. A Board of Supervisors predominantly consisting of participating general practitioners monitors the use of data. Validation studies show the data can be used for postmarketing surveillance. With additional software to collect data not normally recorded in routine practice, data from electronic patient record of general practitioners can be used for postmarketing surveillance.

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