نتایج جستجو برای: cross section data

تعداد نتایج: 2848644  

Journal: :Journal of Physics: Conference Series 2013

Journal: :Journal of Geography (Chigaku Zasshi) 1988

Journal: :Physical Review Letters 1963

Journal: :Journal of Political Economy 2003

Journal: :Micromachines 2013
Klaus Mathwig Serge G. Lemay

This paper presents improvements in flow detection by electrical cross-correlation spectroscopy. This new technique detects molecular number fluctuations of electrochemically active analyte molecules as they are transported by liquid flow through a nanochannel. The fluctuations are used as a marker of liquid flow as their time of flight in between two consecutive transducers is determined, ther...

2005
M. Fukushige

Spurious regression is a serious problem in empirical research when time series has unit roots. This problem might exist when we apply a regression procedure for pooling time series and cross-section data. There are several models to pool time series and cross-section data in regression context, e.g. fixed effect or random effect model. Recently, Entorf [1997] and Kao [1999] also pointed out th...

2009
Ron P. Smith Ana-Maria Fuertes

Traditionally economic panels had large number of cross-section units and relatively few time periods and econometric methods were developed for such ‘large N small T ’data. More recently panels with observations for a large numbers of time periods have become available on cross-section units like …rms, industries, regions or countries. These notes explore the econometric methods developed for ...

1999
Ryouji Matsuda Tomuyuki Nishita

A cloth simulation system must generate a human body model based on measured data obtained from range data. We propose modeling and deformation methods based on such data. In our system, the human body is modeled by layered metaballs which correspond to the horizontal cross section of the body. For each cross section, metaballs are generated by measured sample points on the boundary of the cros...

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