Resumes
Resumes
Edwin Frederick Phones & Addresses
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Shirley, MA
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Longwood, FL
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Marlborough, MA
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Davenport, FL
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1528 Ward Ct, The Villages, FL 32162 (978) 502-0185
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Lady Lake, FL
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Concord, MA
Publications
Wikipedia
Edwin Frederick O'Brien
View pageEdwin Frederick O'Brien (born April 8, 1939) is an American prelate of the Roman Catholic Church. He is the fifteenth and current Archbishop of Baltimore, ...
Us Patents
Moving Particles Suspended In A Carrier Fluid Through A Flow Channel Having An Input End Under Gas Pressure
View pageUS Patent:
41123018, Sep 5, 1978
Filed:
Jun 3, 1976
Appl. No.:
5/692322
Inventors:
Martin Annis - Newton MA
Paul Bjorkholm - Sharon MA
Carolus M. Cobb - Arlington MA
Edwin Frederick - Concord MA
Alan Ramsey - Harvard all of MA
Paul Bjorkholm - Sharon MA
Carolus M. Cobb - Arlington MA
Edwin Frederick - Concord MA
Alan Ramsey - Harvard all of MA
Assignee:
American Science and Engineering, Inc. - Cambridge MA
International Classification:
G01T 120
US Classification:
250364
Abstract:
Inert gas under pressure forces a suspension of particles in a carrier fluid through a flow channel including tubes of narrow diameter at a pressure high enough to establish laminar flow free from turbulence at a speed determined by a constant displacement rate syringe at the downstream end of the flow channel. At at least two locations along the flow channel measurements are made of particle conditions, such as radioactivity and size, to provide a multiple of particle signals which are correlated to provide a multi-dimensional characterization of the particles, such as the number of cells exceeding a predetermined radioactivity level for each of a number of cell size ranges.
X-Ray Imaging Variable Resolution
View pageUS Patent:
42425832, Dec 30, 1980
Filed:
Apr 26, 1978
Appl. No.:
5/900380
Inventors:
Martin Annis - Newton MA
Edwin Frederick - Concord MA
Edwin Frederick - Concord MA
Assignee:
American Science and Engineering, Inc. - Cambridge MA
International Classification:
G03B 4116
US Classification:
250358R
Abstract:
A scanning X-ray imaging system produces an image of the transmissivity of objects by producing a relative motion of the object generally perpendicular to the triangular planes joining an X-ray point source and M X-ray line detectors, where M is equal to or greater than 1; these X-rays pass through a scanning slit assembly. The scanning slit assembly generally includes a plane of X-ray opaque material having N sets of line slits, where N is equal to or greater than 2, each set containing M identical line slits. The scanning slit assembly, in addition, includes a rotating X-ray opaque material containing N uniquely different sets of radial slits, each set containing identical radial slits. Each of the N sets of radial slits is uniquely paired with each of the N sets of line slits. During any scan of an object, M detectors, M line slits and one of the N sets of radial slits are used.