Yuan-Yong Deng, Jun Zhang and Louise K. Harra . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247The Gyrosynchrotron Radiation Spectrum in a Nonuniform SourceAi-Hua Zhou . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260A New Method to Determine Epochs of Solar Cycle ExtremaZhan-Le Du, Hua-Ning Wang and Xiang-Tao He . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338The Filament Eruption of 1999 March 21 and Its Associated Coronal Dimmings and CMEYun-Chun Jiang, Le-Ping Li and Li-Heng Yang . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 345Evolution of the Level of Sunspot Activity in Solar Cycles I. Evolution in Descending PhaseJia-Long Wang . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354Vector Magnetic Field Measurement of NOAA AR 10197Hong-Fei Liang, Hai-Juan Zhao and Fu-Yuan Xiang . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 470The Relationship between Magnetic Gradient and Magnetic Shear in Five Super Active RegionsProducing Great FlaresHai-Min Wang, Hui Song, Ju Jing, Vasyl Yurchyshyn, Yuan-Yong Deng, Hong-QiZhang, David Falconer and Jing Li . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 477The Relation between the Amplitude and the Period of Solar CyclesZhan-Le Du, Hua-Ning Wang and Xiang-Tao He . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 489Spectral Analysis and Atmospheric Models of MicroflaresCheng Fang, Yu-Hua Tang and Zhi Xu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 597An Impulsive Heating Model for the Evolution of Coronal LoopsLi Feng and Wei-Qun Gan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 608Derivation of the Spiral Motion of an Eruptive Prominence and Its ExplanationXiao-Ma Gu, Shu-Hua Zhong, Hong-Fei Liang and La-Sheng Zhan . . . . . . . . . . . . . . . . . . . . . . . . . 617Solar Impulsive Hard X-Ray Emission and Two-Stage Electron AccelerationTian-Xi Zhang, Arjun Tan and Shi Tsan Wu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 733Formation of the CME Leading Edge Observed in the 2003 February 18 EventXing-Ming Bao, Hong-Qi Zhang and Jun Lin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 741Solar Energetic Particle Event of 2005 January 20: Release Times And Possible SourcesGui-Ming Le, Yu-Hua Tang and Yan-Ben Han . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 751Astrometry and celestial mechanicsAtmospheric Excitation of Time Variable Length-of-Day on Seasonal ScalesLi-Hua Ma and Yan-Ben Han . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120Velocity Space of Galactic O-B StarsZi Zhu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363On the Station-Keeping and Control of the World Space Observatory/UltravioletXi-Yun Hou, Hai-Hong Wang and Lin Liu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372Atmospheric and Oceanic Excitations to LOD Change on Quasi-biennial Time ScalesLi-Hua Ma, De-Chun Liao and Yan-Ben Han . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 759Instruments, observational techniques and data processingVOFilter: Bridging Virtual Observatory and Industrial Office ApplicationsChen-Zhou Cui, Markus Dolensky, Peter Quinn, Yong-Heng Zhao and Françoise Genova . . . 379Image Field Deformation of LAMOST due to Differential Atmospheric RefractionJin-Ling Li, Bo Zhang, Yong Yu, Zhao-Xiang Qi and Ming Zhao . . . . . . . . . . . . . . . . . . . . . . . . . . 495Comparison between Windowed FFT and Hilbert-Huang Transform for Analyzing Time Serieswith Poissonian Fluctuations: A Case StudyDong Han and Shuang-Nan Zhang . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 503History of astronomyHistorical Evidence for the Birth of the Newly Discovered Pulsar PSR J1833–1034Zhen-Ru Wang, Min Li and Yi Zhao . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 625Observational Accuracy of Sunrise and Sunset Times in the Sixth Century ChinaYong Li . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 629The Guest Star of AD185 must have been a SupernovaFu-Yuan Zhao, R. G. Strom and Shi-Yang Jiang . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 635iv
AGRADECIMENTOSÀ Universidade Federal de Viçosa, pela realização do Curso.Ao Programa de Pós-Graduação em Engenharia Agrícola, pelaoportunidade do Curso.Ao Professor Haroldo Carlos Fernandes, pela orientação e peloestímulo.Ao Professor Hélio Garcia Leite, pela orientação nas análisesestatísticas e pelo entusiasmo com o trabalho.Aos Professores Carlos Cardoso Machado, Amaury Paulo de Souza eLuciano José Minette, pelo apoio durante o curso e pelas sugestões.À CENIBRA S/A, nas pessoas dos senhores Robinson Félix e GilbertoGarcia, pela minha liberação para o desenvolvimento deste trabalho, e aoGermano Aguiar Vieira e Mário Eugênio Lobato Winter, pelo apoio para aexecução dos trabalhos de campo.Ao Engenheiro Florestal Abílio Donizetti de Morais Filho, pelo apoiona coleta de dados e pelas observações de campo.Ao Engenheiro Florestal Fabiano Lourenço dos Santos, pelo apoionas análises estatísticas.Ao Técnico Agrícola Walteli Souza Guerra e aos operadores demáquina, pela colaboração, o que tornou mais fácil a realização destetrabalho.iii
- Page 2: Ficha catalográfica preparada pela
- Page 7 and 8: BIOGRAFIAEVERSON RAMOS BURLA, filho
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- Page 13 and 14: Página12. Rendimento (árvores h -
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- Page 21 and 22: 2. REVISÃO DE LITERATURA2.1. Impor
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- Page 27 and 28: A seleção de máquinas e equipame
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- Page 45 and 46: em que:MDO = custo de mão-de-obra
- Page 47 and 48: declividade foram divididas em plan
- Page 49 and 50: A mensuração do diâmetro a 1,3 m
- Page 51 and 52: em que:Vsc - volume de madeira em m
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4. RESULTADOS E DISCUSSÃOForam ava
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Cortar8%Tombar10%Descascar/Desgalha
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Já o ganho de produtividade no tra
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Analisando as Figuras 10 e 11, obse
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45Rendimento = - 167,16 + 19,692 da
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4.3.4. Declividade do terreno (D)Ou
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45Rendimento = 25,911 - 0,0036 Nár
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em que:R = rendimento do harvester
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Tabela 4 - Custos operacionais do
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Tabela 6 - Custo de produção com
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5. CONCLUSÕESNas condições em qu
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DURATEX, Equipe técnica. Colheita
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PACCOLA, J. E. Desafios da manuten