Results 71 to 80 of about 378,128 (332)
PREDICTING THE α COMAE BERENICES TIME OF ECLIPSE: HOW 3 AMBIGUOUS MEASUREMENTS OUT OF 609 CAUSED A 26 YEAR BINARY’S ECLIPSE TO BE MISSED [PDF]
The dwarf stars in the 26 year period binary α Com were predicted to eclipse each other in early 2015. That prediction was based on an orbit model made with over 600 astrometric observations using micrometers, speckle interferometry, and long baseline ...
M. Muterspaugh+9 more
semanticscholar +1 more source
Functional parameters of spermatozoa obtained by a new selection device
This study compares density gradient centrifugation and the LensHooke CA0™ device for sperm separation. DGC requires multiple steps, specialized equipment, and technical expertise. In contrast, the CA0 device offers key practical and methodological advantages, resulting in a faster, simpler, and more affordable sperm selection method.
Julio C. Chávez+8 more
wiley +1 more source
Usando as triangulações propostas pelo antigo astrônomo Aristarco, obtivemos neste trabalho o tempo total e a duração do máximo dos eclipses solares e calculamos o tempo total dos eclipses lunares. Para isso, usamos os valores do período orbital da Lua e
T.B. de Oliveira+2 more
doaj +1 more source
This study aimed to identify the impact of an annular solar eclipse i.e., 21 June 2020 on the variation of meteorological parameters along with trace gases using statistical analyses.
Divya Prakash+6 more
doaj +1 more source
Characterization of the hot Neptune GJ 436b with Spitzer and ground-based observations [PDF]
We present Spitzer Space Telescope infrared photometry of a secondary eclipse of the hot Neptune GJ436b. The observations were obtained using the 8-micron band of the InfraRed Array Camera (IRAC). The data spanning the predicted time of secondary eclipse
Adams+30 more
core +3 more sources
I VENTURE to send some notes upon last night's eclipse of the moon, taken by me here up to 11.35 p.m., when the sky became rather suddenly and entirely overcast.
openaire +3 more sources
Three dimensional modeling and controlling of bridge-detection vehicle(Eclipse环境下桥梁检测车三维模型的构建与控制)
针对桥梁检测车操作人员无法直接观察桥检车机械臂的动作状态的问题,提出构建桥检车的三维模型,能够实时动态地跟踪显示出桥检车机械臂的动作状态.以Eclipse作为软件开发平台,基于OpenGL ES实现桥检车的三维模型构建和控制给出直接三维建模法与插件三维建模法.实验结果表明,2种方法均可实现桥检车三维模型的构建与控制,对于规则三维模型的构建与控制,直接三维建模法要优于插件三维建模法.
WANGXiu-min(王秀敏)+2 more
doaj +1 more source
Precise Measurement of Gravity Variations During a Total Solar Eclipse
The variations of gravity were measured with a high precision LaCoste-Romberg D gravimeter during a total solar eclipse to investigate the effect of solar eclipse on the gravitational field.
C. S. Unnikrishnan+13 more
core +1 more source
Detecting circumbinary planets using eclipse timing of binary stars - numerical simulations [PDF]
The presence of a body in an orbit around a close eclipsing binary star manifests itself through the light time effect influencing the observed times of eclipses as the close binary and the circumbinary companion both move around the common centre of ...
Alonso+19 more
core +1 more source
Ionospheric responses to the 21 August 2017 solar eclipse by using data assimilation approach
Using the physics-based thermosphere-ionosphere model (NCAR-TIEGCM) with an ensemble Kalman filter, this study reports the first data assimilative analysis of the ionosphere responses to the solar eclipse on 21 August 2017.
Chia‐Hung Chen+2 more
semanticscholar +1 more source