Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 3 of 3 for “"O-star"”.
-
Star formation in the HII regions RCW 38, RCW 36, and RCW 108
… a ring like structure centered around an O-star. A bright knot in the ring was determined to contain 15% of the total dust by mass in the region and roughly coincided with regions of high emission at various infrared wavelengths as well as 6 cm continuum emission. The dust emission in RCW 36 …
-
Data warehouse newSQL : uma análise de desempenho explorando estratégias de armazenamento e distribuição
… experimental de desempenho em DWs, utilizando o Star Schema Benchmark (SSB) e o Sistema Gerenciador de Banco de Dados (SGBD) MemSQL, em estrutura de cluster de 3 computadores. Para a avaliação experimental, utilizamos métricas de volume e desempenho de tempo em tarefas de carga e consultas de …
-
Multidimensional diffusive shock acceleration in the Winds from massive stars
… been seen in the winds around a quarter of all O-stars. The emission is attributed to shock accelerated cosmic rays. The shocks thought to be causing the acceleration are either wind-embedded shocks due to radiative line driving instabilities in the stellar wind, or shocks due to the colliding …