Results 181 to 190 of about 1,949,650 (217)

Group Formation on a Line

Symposium i Anvendt Statistik, 2010
Artiklen viser at en nummerering af indsamlede evalueringsskemaer kan afsløre gruppedannelse blandt de tilhørende studenter på et stort undervisningshold.Gruppedannelsen viser sig ved at sequenser med ens bedømmelse afviger fra en tilfældig fordeling defineret som en negativ binomialfordeling, der løber indtil to "succeer" er opnået.
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Spectral Line Formation

2012
This chapter gives a review of spectral line formation processes, starting with the main equations valid in thermodynamic equilibrium. The Einstein coefficients and the main spectral line profile functions are discussed.
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Transient formation of forbidden lines

Journal of Physics B: Atomic, Molecular and Optical Physics, 1996
An explanation of anomalously long time scales in the transient formation of forbidden lines is proposed. The concept is based on a collisionally induced density dependence of the relaxation times of metastable level populations in transient plasma. Generalization leads to an incorporation of diffusion phenomena. We demonstrate this new concept for the
F B Rosmej, O N Rosmej
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Line formation in magnetic fields

Solar Physics, 1970
Hyder (1968) has suggested that longitudinal magnetograph measurements of weak magnetic fields in prominences have underestimated field strengths as the result of zero-field levelcrossing interference (the Hanle effect). Hyder (1968) also suggested that resonance polarization effects have sometimes led to errors in measurements of the transverse ...
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Fine Line Conductor Formation

Circuit World, 1992
Driven by the demand for higher density in electronic packaging, each signal plane of printed wiring board must accommodate more conductors. As a result, conductor width is becoming narrower each year. This chapter reviews some of the important steps of forming finer line conductors in printed wiring boards, such as surface preparation, plating/etching,
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The Formation of FeII Emission Lines

1988
The excitation of FeII emission lines is reviewed, with special emphasis on photoionized nebulae. The physical conditions, the geometry and the techniques required to calculate FeII models are explained and the following mechanisms discussed: a: Excitation by absorption of continuum radiation. b: Excitation by inelastic collisions, and c: Excitation by
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Line Formation in Expanding Atmospheres

1976
The current state of understanding of line formation processes in expanding atmospheres is reviewed, and the successes and limitations of current computational techniques are summarized. Some results for differential rotation are also given, although very little work has been done in this area. Special attention is given to the severe difficulties that
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A Survey of Autonomous Underwater Vehicle Formation: Performance, Formation Control, and Communication Capability

IEEE Communications Surveys and Tutorials, 2021
Yue Yang, Yang Xiao, Tieshan Li
exaly  

Formation of FEII Lines in AGN

1988
Up to now photoionization models of the Broad Line Region of quasars fail to explain the strength of low ionization lines, in particular, FeII lines are too weak compared to H3. Using a code mainly designed to study low ionized and optically thick medium, I have calculated the radiation transfer in a non-photoionized homogeneous cloud in order to ...
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Line format and program structure

1994
A CNC program is a set of instructions that is read by the machine tool computer system to control machine slide movements, tool movements and additional miscellaneous functions. There are two types of CNC programming: conversational format and word address format.
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