50,448 research outputs found
Letter from Paul M. Roca on behalf of Carl Hayden to Ray E. Carr, Associated Civic Clubs of Southern Utah
No full textLetter from Paul M. Roca to Ray E. Carr on behalf of Carl Hayden politely declining his invitation
Paul Orton, Phyllis Ray, and Elizabeth Mulchy in a Joint Junior Recital
No full textThis is the program for the joint junior recital of clarinetist Paul Orton, pianist Phyllis Ray, and violoncelloist Elizabeth Mulchy. The recital took place on February 6, 1964, in Michell Hall
[Letter from Alex Bradford to Lieutenant and Mrs. Ray Starner - November 4, 1940]
No full textLetter from Alex Bradford to Lieutenant and Mrs. Ray Starner describing the the current state of affairs that the author was experiencing, including: the London blitz, the moral of the troops on the ground, and the collective company of men opposing the Nazi regime
Paul Ray Directory Photo
No full textDirectory photo of Paul Ray taken in July 1973.https://digitalcommons.dmu.edu/archive_images/2211/thumbnail.jp
The student's guide to completing an author study
No full textThe 'Student's guide to completing an author study' emerged during the early development of the school library resource center program at Glen Stewart Elementary School in Stratford Canada on Prince Edward Island. This research process centered on an author study, with direct teaching and clear assignment. The resulting model has been adapted to various grade levels and subject areas in different schools.Source type: Electronic(1)http://proquest.umi.com/pqdweb?did=49237063&Fmt=7&clientId=65345&RQT=309&VName=PQ
Telegram from Paul and Bena to Robert B. And Denise Beyt Ray, December 13, 1944
No full textIn this Western Union Telegram addressed to Lt. Col. Robert and Mrs. Ray at the Foster General Hospital in Jackson, Mississippi from Paul and Bena, they say they heard of the Rays safe arrival and wish for a speedy recovery.https://scholarsjunction.msstate.edu/mss-webb-collection/1812/thumbnail.jp
Active X-ray optics for the next generation of X-ray space telescopes
No full textDescribed within is the design, manufacture, metrology and X-ray testing of an active X-ray
prototype intended for the next generation of X-ray telescopes. One of the challenges faced by
the X-ray telescope community is how to combine high resolution and high sensitivity into one
system, as weight limitations place constraints on the optics that can be launched. Therefore the
mandate of the active X-ray prototype is to provide high sensitivity through the ability of the optics
to be nested and to deliver high angular resolution through the active control of the optic’s form.
Piezoelectric unimorph actuators provide the active component: it is intended that they will correct
for figure errors within the optic and therefore increase the angular resolution capability.
The prototype’s design is based upon an ellipsoidal segment which provides point-to-point
focussing of an X-ray source. The prototype itself is composed of an electroformed nickel optic
where the non-reflective surface is populated with 30 piezoelectric actuators and it is the production
of the prototype that is the core of the presented research. Metrology of the actuators’ influence
functions is presented and highlight the prototype’s ability to deform its optic surface by microns.
In addition, the measured influence functions are compared against finite element models and a
distinct similarity between the functions is observed.
The prototype was tested at an X-ray beamline facility in November 2008 and the results
showed the prototype’s ability to correct the optic to achieve an improved angular resolution: from
0.786 arc-minutes to 0.686 arc-minutes in terms of full width half maximum. Finally, difficulties
in the manufacture of the prototype and X-ray testing shall be presented alongside future work in
conclusion to this thesis
The Institute of Archaeology & Siegfried H. Horn Museum Newsletter Volume 43.2
No full textASOR 2021, Paul J. Ray, Jr.
Bisheh Dies, Published Obituary, slightly modified by Paul J. Ray, Jr.
Al-Maktába: The Bookstore
Random Surveyhttps://digitalcommons.andrews.edu/iaham-news/1090/thumbnail.jp
The Institute of Archaeology & Siegfried H. Horn Museum Newsletter Volume 38.2
No full textASOR 2016 Annual Meeting, Paul J. Ray, Jr.
Hendrix Dies, Union-Bulletin obituary edited and expanded by Paul J. Ray, Jr.
Madaba Plains Project 50th Anniversary Celebration Events
Al Maktába: The Bookstore
Random Surveyhttps://digitalcommons.andrews.edu/iaham-news/1070/thumbnail.jp
High resolution gamma-ray astronomy in the energy range 0.05 to 10 mev
No full textAn analysis of the detection properties of an actively shielded 86cm (^3) germanium detector is given. Results are presented of observations of the Crab Nebula, its associated pulsar PSR0531+21, the Seyfert galaxy NGC1275, and the COS B source 2CG195+5. Evidence is presented for gamma-ray line emission from the Crab at energies of 404.7 and 1049.8 keV with intensities at the top of the atmosphere of (7.2 ± 2.1) x 10(^-3) and (2.03 ± 0.46) X 10(^-2) s (^-1) respectively. A line at 78.9 keV has also been detected at the 4.1o level which shows time variability. The peak flux at the top of the atmosphere was measured to be (1.1 ± 0.26) x 10(^-2) photons cm"(^-2)s(^-1) .We report the detection of redshifted annihilation radiation from the type II Seyfert galaxy, NGC 1275.The measured flux at the top of the atmosphere is (7.1 ± 2.2) x 10(^-3)photons cm(^-2)s(^-1)
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