Program GROUP: The Identification of All Possible Solutions to a Constituency-Delimitation Problem

1981 ◽  
Vol 13 (2) ◽  
pp. 231-238 ◽  
Author(s):  
D J Rossiter ◽  
R J Johnston

A computer program is designed to produce all of the electoral constituencies for an English local authority, within the constraints imposed on the Parliamentary Boundary Commissioners. This builds on the seminal work of Gudgin and Taylor, and introduces size constraints, evaluates shape, and evaluates the electoral consequences of swings in voter opinion.


1978 ◽  
Vol 48 ◽  
pp. 287-293 ◽  
Author(s):  
Chr. de Vegt ◽  
E. Ebner ◽  
K. von der Heide

In contrast to the adjustment of single plates a block adjustment is a simultaneous determination of all unknowns associated with many overlapping plates (star positions and plate constants etc. ) by one large adjustment. This plate overlap technique was introduced by Eichhorn and reviewed by Googe et. al. The author now has developed a set of computer programmes which allows the adjustment of any set of contemporaneous overlapping plates. There is in principle no limit for the number of plates, the number of stars, the number of individual plate constants for each plate, and for the overlapping factor.



Author(s):  
Makoto Shiojiri ◽  
Toshiyuki Isshiki ◽  
Tetsuya Fudaba ◽  
Yoshihiro Hirota

In hexagonal Se crystal each atom is covalently bound to two others to form an endless spiral chain, and in Sb crystal each atom to three others to form an extended puckered sheet. Such chains and sheets may be regarded as one- and two- dimensional molecules, respectively. In this paper we investigate the structures in amorphous state of these elements and the crystallization.HRTEM and ED images of vacuum-deposited amorphous Se and Sb films were taken with a JEM-200CX electron microscope (Cs=1.2 mm). The structure models of amorphous films were constructed on a computer by Monte Carlo method. Generated atoms were subsequently deposited on a space of 2 nm×2 nm as they fulfiled the binding condition, to form a film 5 nm thick (Fig. 1a-1c). An improvement on a previous computer program has been made as to realize the actual film formation. Radial distribution fuction (RDF) curves, ED intensities and HRTEM images for the constructed structure models were calculated, and compared with the observed ones.







2002 ◽  
Vol 22 (5) ◽  
pp. 202-202
Author(s):  
Nasser Alidadi ◽  
Mohammad R. Mokhber Dezfouli ◽  
Mohammad Gholi Nadalian ◽  
Ali Rezakhani ◽  
Iradj Nouroozian


2005 ◽  
Vol 2 (3) ◽  
pp. 308-344
Author(s):  
Christophe Parthoens ◽  
Dina Sensi ◽  
Altay Manco

This article aims to describe the processes leading to social integration of a Turkish community at the beginning of the sixties who were resident in a mining region in Belgium. The stages through which this immigrant working population had to go through are described here: and how it managed, within a third of century, to become established in the district, to structure itself in associations, to be recognized by the local authority and the institutional fabric of the host country, and finally, to sit down at the same table with the local councillors.



2005 ◽  
Author(s):  
P. Gao ◽  
D. Chung ◽  
B. Tomasovic


Sign in / Sign up

Export Citation Format

Share Document