3,194 research outputs found
Letter from Carl Hayden to Roy W. James and M. J. Hanley
No full textLetter from Carl Hayden to Roy James and M. J. Hanley expressing a wish to soon have a definite answer in regards to their insurance claims
Roy Hoopes papers
No full textRoy Hoopes (1922- ), author, journalist, photographer, and editor was born in Salt Lake City, Utah. However, he grew up in Washington, DC, where his family moved when he was four. After active duty in the Naval Reserves in WWII, he completed his M.A. in 1948 at George Washington University, where he had previously completed his A.B. in 1943. Thereafter he edited and wrote for various magazines such as National Geographic Magazine, Playboy, Modern Maturity, and Maryland, for which he wrote a regular series of articles on Maryland writers. In addition, Hoopes wrote a weekly newspaper column on current events for the Berkshire (MA) Eagle under the pseudonym Peter Potomac from 1957 to 1977. Hoopes was the author of more than thirty books. He was the official biographer of James M. Cain and Ralph Ingersoll as well as co-author of the biography of Mormon apostle Rudger Clawson, of whom he is a descendent. He has written works of fiction such as Our Man in Washington as well as many non-fiction books including When the Stars Went to War, Americans Remember the Home Front and The Peace Corps Experience. Hoopes took up photography in 1969 and provided his own photographs for his books and for many articles. This collection includes drafts of books and magazine articles, research for both published and unpublished articles and books, photographs, serials, correspondence, and original artwork by political cartoonists Richard M. Powers and Herblock. The collection is unprocessed, but a preliminary inventory is available
Formation of bright solitary matter-waves
Get PDFThis thesis presents the development of an experimental apparatus to produce Bose-Einstein condensates (BECs) with tunable interparticle interactions. The ability to precisely control the strength of these interactions, and even to switch them from repulsive to attractive, allows one to probe novel regimes of condensate physics, from the collapse of attractively interacting BECs and the formation of solitary matter-waves to the observation of beyond mean-field effects in strongly repulsive condensates.
The construction and characterisation of both a single and crossed beam optical dipole trap is presented. In the single beam case we develop a technique allowing the guided transport of atoms along the beam and up to a room-temperature surface; a technique which can be used to evaporatively cool the trapped atomic cloud. We produce Bose-Einstein condensates of 87Rb in the F=1, mF=-1 state in this trap, comparing the effect of beam waist on the evaporation trajectory. In the crossed beam trap Bose-Einstein condensation of 87Rb is realised in three distinct trapping configurations, along with a 1D optical lattice formed by changing the polarisation of the beams.
A method of direct cooling of 85Rb atoms in the crossed trap is developed using a magnetic Feshbach resonance to precisely tune both the elastic and inelastic scattering properties of the atoms. The resonance used for this work occurs at 155G in collisions between atoms in the F=2, mF=-2 state of 85Rb. Bose-Einstein condensates of up to 40,000 85Rb atoms are formed in this trap and we demonstrate the presence of tunable interatomic interactions, exploring the collapse phenomenon associated with attractive condensates.
By loading the 85Rb condensate into a quasi-1D waveguide we show that stable attractive condensates can be created, taking the form of bright solitary matter-waves. We observe a solitary wave of ~2,000 atoms which propagates, without dispersion, along the waveguide over a distance of ~1.1mm. The particle-like nature of the solitary wave is demonstrated by classical reflection of the wavepacket from a repulsive Gaussian barrier
Regional integration fifty years after the treaty of Rome. The EU, Asia, Africa and the Americas.
Get PDFThe European Union has been the pioneer and undisputed
leader of regional integration processes. Since its inception in
the 1950s, following the Schuman Declaration that set in motion
Jean Monnet’s innovative idea to join together European coal
and steel industries, Europe has offered a useful model for
regional integration. Strengthened by the 1957 Treaty of Rome
(exactly half a century ago), this bold entity was later transformed
into the European Union by the Maastricht Treaty.
Having successfully accomplished its primary goal (“to make
war unthinkable and materially impossible”), the EU is currently
facing challenges associated with its expansion and the deepening
of its pooled sovereignty. On the other hand, the effects
of the EU in international relations are of paramount relevance.
While the forceful transposition of national and regional structures
into other regions is a historical error, the essence of the
EU as a model to be adapted by other regions is a viable
approach to enhance stability and welfare. In this regard, this
volume examines the current challenges of the EU and the perspectives
of regional integration in Africa, Asia and Latin
America
Letter from Tsuneo Iwata to Mayor Roy M. Day, April 16, 1942
No full textLetter of gratitude from Tsuneo Iwata president of the Turlock Social Club to Mayor Roy M. Day of Turlock, California, in response to the mass removal in California.The Nisaburo Aibara Collection features materials from the Turlock Social Club, a local Japanese-American community group active between 1939 and 1970. It contains documents regarding the Stockton, Turlock and Merced Assembly Centers and Japanese American Citizens League chapters. The Collection also features correspondences with reactions, responses, and preparations for the forced evacuation. Additionally, the Collection has records on the Central California Cantaloupe Company, Turlock Farm Corporation, Turlock Japanese Society, and family records and funeral service programs of Japanese-American residents of Turlock
Bright Phosphorescence of All-Organic Chromophores Confined within Water-Soluble Silica Nanoparticles
No full textRoom temperature phosphorescence is usually a prerogative of metal complexes. Molecules with a hexakis(phenylthio)benzene core constitute a rare example of all-organic chromophores with phosphorescence induced by environmental rigidification. Here we report covalent encapsulation of functionalized persulfurated benzene chromophores into silica nanoparticles as a method of rigidification for induction of phosphorescence. The developed nanoparticles display bright phosphorescence at ambient temperatures and possess high colloidal stability in water. The method permits incorporation of a large number of chromophores (ca. 40) per nanoparticle while preserving their emissivity. The luminescence of the nanoparticles is sensitive to quenching by molecular oxygen in the physiological oxygen range, potentially making them suitable as probes for phosphorescence lifetime imaging of oxygen in biological systems
Cartographie thématique de corpus pour l'étude de métaphores conceptuelles
No full text@inproceedings{CN-ROY-2005-2, author = {Thibault Roy and St{é}phane Ferrari and Pierre Beust}, title = {{Cartographie th{é}matique de corpus pour l'{é}tude de m{é}taphores conceptuelles}}, year = {2005}, booktitle = {Actes des 4{è}mes Journ{é}es de la Linguistique de Corpus}, editor = {G. Williams}, address = {Lorient, France}, organization = {15-17 septembre 2005} }National audienc
Land Lease [A] between Carson Estate Company and Roy Campbell, Green Acres Farm, 1944-1946
No full textDescribes one year lease agreement from April 15, 1944 to April 15, 1945 between Carson Estate Company and Green Acre Farms with yearly rent of $1180. Tract of land described in chains as units of measurement. Handwritten notes strike year dates and replace with the 1945 and 1946. Lease agreement precedes lease to Fred M. Kuwahara. Lease signed by Roy Campbell of Green Acre Farms with a Compton address
A state communication and software switching module and thin middleware layer for reconfiguration management in reconfigurable manufacturing systems.
Get PDFM. Sc. Eng. University of KwaZulu-Natal, Durban 2015.Reconfigurable Manufacturing Systems are a new area of operations and manufacturing research. The global need for production systems which can react rapidly to dynamic markets has increased in the last decade and will continue to drive changes in the manufacturing industry. The further development of RMS technologies is therefore highly important for future industries. The Reconfiguration Management and Middleware System (RMMS) developed in this research aimed to form a hardware-supported middleware technology which allows for the fast and seamless ramp-up of heterogeneous machine controllers on a newly reconfigured factory floor. The goal was to allow for the autonomous assignment and switching of software routines on machine controllers after a physical reconfiguration, thereby speeding up the ramp-up of the system.
The technology was based on a recorded literature review and fits into the paradigm of RMS. The RMMS was developed not as a traditional software-heavy layer, but as a thin layer of software assisted by interactive mechatronic hardware, designed to remove heterogeneity in the control software. The system design was based on research into areas of engineering and operations management and followed the Mechatronic design approach. The literature led to a technology that takes the entire RMS paradigm into account and the development was conducted in conjunction with experiments to verify the individual functionality of each sub-system and ensure the overall system’s success. The RMMS uses hardware to handle heterogeneity and uses a positioning system (developed by the author) along with an intelligent processing system (a clustering algorithm and artificial intelligence engine) to construct data into a factory floor model. The positioning system, when assisted by the intelligence, operates at an accuracy of over 90%, which is comparable to commercial positioning techniques which cost over ten times more. The RMMS used the developed model to, autonomously and wirelessly, assign new programs to machine controllers after a physical reconfiguration, to complete a factory reconfiguration.
The system was verified through practical scenarios constructed in the Mechatronics laboratory. Realistic reconfiguration operations were performed and the RMMS was required to detect changes in the factory floor and respond by assigning new, appropriate, software routines to each machine controller in the system. Experiments have proved that the system was capable of re-establishing operations in under half an hour, as opposed to a full day using manual techniques.
The system has accurately switched between control routines based on the physical state of the factory floor, which amounts to control reconfiguration. The reconfiguration of factory floor control was successful in four out of four factory layouts tested and therefore successfully does a job no commercially available system can do
A new pyrene cored small organic molecule with a flexible alkyl spacer: A potential solution processable blue emitter with bright photoluminescence
No full textA new pyrene cored small organic molecule viz. 1,3,6,8-tetrakis(4-((5-(9H-carbazol-9-yl)pentyl)oxy)phenyl)pyrene (PY-II) was designed and synthesized. The carbazole moiety with an alkyl spacer was introduced at 1, 3, 6 and 8 positions of the pyrene core to improve the charge transport properties and solution processability. PY-II exhibited excellent solubility in common organic solvents and high thermal stability up to 345 °C. The photoluminescence quantum yield (PLQY) of PY-II in solution was found to be 0.9 with bright blue emission near 450 nm which is just appropriate for the human eye. The solution processed non-doped OLED device fabricated using PY-II as an emissive layer afforded a pure blue emission with CIE coordinates of 0.16 and 0.16, a power efficiency of 0.17 lm W<sup>−1</sup>, a maximum current efficiency of 0.41 cd A<sup>−1</sup> and a maximum brightness of 202 cd m<sup>−2</sup>
- …
