21,857 research outputs found
Paul Singer et Vinicius Caldeira Brant (dir). Sao Paulo : o povo em movimento
No full textPécaut Daniel. Paul Singer et Vinicius Caldeira Brant (dir). Sao Paulo : o povo em movimento. In: Politique étrangère, n°2 - 1981 - 46ᵉannée. pp. 482-483
Report on Meteorological Research March 1, 1935 (m-1)
No full textThe object of the report was to elucidate in detail the various features of the research program in meteorology being carried on at the Daniel Guggenheim Airship Institute in Akron, Ohio. Mr. L. J. Fangman, of the U.S. Weather Bureau, was collaborating with the author in carrying out work such as a study of autographic records of the various meteorological elements during frontal passages with a view to the possible prediction of the intensity of the accompanying disturbance as it may affect the operation of aircraft and a study of atmospheric gustiness with a view to finding the dependence between frequency end amplitude of velocity fluctuations and the vertical temperature and velocity gradients
(Fourth) Report on Meteorological Activities at the DGAI (8-1-36)(Weather Bureau Copy)
No full textThis report is on the investigations of frontal phenomena at the Daniel Guggenheim Airship Institute in Akron, Ohio from January 1, 1935 through August 1, 1936. The investigation was carried out with the cooperation of the U.S. Bureau of Aeronautics, the U.S. Weather Bureau, the California Institute of Technology, and the Guggenheim Airship Institute. Mr. R.C. Robinson of the Weather Bureau cooperated with the author in carrying out the investigation. The object of the investigation was to determine the intensity of the atmospheric disturbances (i.e. rapidity of wind shift and gustiness) accompanying the passage of cold fronts, along with a study of the characteristics of the air masses involved and other features which might affect the intensity of the disturbance. The report treated thirty cold fronts which passed the station during 1935 to 1936
Archives and Images as Repositories of Time, Language, and Forms from the Past: A Conversation with Daniel Eisenberg
No full textDaniel Akech
No full textabstract: Daniel was a little boy when the war came to his village. He witnessed people being shot and running for shelter. There was no food or water so he drank urine and ate tree leaves.
“Lost Boys Found” is an ongoing, interdisciplinary project that is collecting, recording and archiving the oral histories of the Lost Boys/Girls of Sudan. The collection is a work-in-progress, seeking to record the oral history of as many Lost Boys/Girls as are willing, and will be used in a future book.Age: 24Region: Upper NileThis picture and bio was donated to the "Lost Boys Found" oral history project from The Arizona Lost Boys Cente
Daniel Emmett postcard
No full textPostcard of Daniel Emmett and his home in Mount Vernon, Ohio. Emmett is considered to be the author of the antebellum song "Dixie," written in 1859, which became the unofficial song of the Confederate soldiers during the American Civil War. He was born in Mount Vernon in 1815 and taught himself the fiddle, and later became associated with minstrel shows and helped to define that genre. Minstrel shows traveled around the United States, presenting skits and musical performances. Emmett also composed many other songs, including "Old Dan Tucker," "Turkey in the Straw," and "The Blue Tail Fly." He died in 1904
Daniel Jau Maper
No full textabstract: Daniel Jau Maper was herding cattle when Arabs attacked his village.
“Lost Boys Found” is an ongoing, interdisciplinary project that is collecting, recording and archiving the oral histories of the Lost Boys/Girls of Sudan. The collection is a work-in-progress, seeking to record the oral history of as many Lost Boys/Girls as are willing, and will be used in a future book.Age: 27Region: Upper NileThis picture and bio was donated to the "Lost Boys Found" oral history project from The Arizona Lost Boys Cente
Daniel A. Ngor
No full textWhen Daniel was five years old Arab soldiers attacked his village.
“Lost Boys Found” is an ongoing, interdisciplinary project that is collecting, recording and archiving the oral histories of the Lost Boys/Girls of Sudan. The collection is a work-in-progress, seeking to record the oral history of as many Lost Boys/Girls as are willing, and will be used in a future book.Age : 23Region: Upper NileThis picture and bio was donated to the "Lost Boys Found" oral history project from The Arizona Lost Boys Cente
Modelagem de uma caldeira flamotubular com fornalha aquatubular
No full textTCC (graduação) - Universidade Federal de Santa Catarina. Campus Blumenau. Engenharia de Controle e AutomaçãoUma grande dificuldade encontrada por empresas no segmento de caldeira é a falta de sintonização correta dos controladores PID existentes no processo. Esse trabalho aborda uma solução inicial para essa problemática, com o desenvolvimento da modelagem fenomenológica simplificada dos sistemas e subsistemas através dos princípios físicos de balanço de massa e energia que englobam uma caldeira Flamotubular com fornalha Aquatubular de circulação natural e alimentação por cavaco. Foram utilizados dados reais da caldeira a ser instalada na Fazenda Agrotec em Catalão-GO para implementar o modelo dinâmico não-linear. A construção do modelo foi dividida em duas partes a do lado água/vapor e fogo/gás e segue a literatura para obter o modelo dinâmico apropriado para posteriormente desenvolver o projeto de controle. O modelo simplificado foi testado através da implementação computacional, com levantamentos de dados gerais e, em seguida, foi simulado retirando os resultado e expondo-os com análises e comparações.A great difficulty found by boiler companies is the lack of correct tuning of the PID controller in the process. This thesis approaches an initial solution to the problem, with the development of a simplified phenomenological model of the systems and subsystems through the physical principles of mass and energy balance which encompass a fire-tube boiler with aqua tubular furnace of natural circulation and supplied by swarf. The nonlinear dynamic model for the boiler used data of a real project which will be installed in Agrotec Farm in Catalão-GO. The construction of the model was divided in two parts, water/steam and fire/gas and follows the literatures to obtain the appropriate dynamic model to later develop a control project. The simplified model was tested through computational simulation and comparison with results found in the literature
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