Cluster Photometry: Present State of the Art and Future Developments

1986 ◽  
pp. 17-30 ◽  
Author(s):  
Ivan R. King
2016 ◽  
Vol 5 (1) ◽  
pp. 75-97
Author(s):  
Fabio Brancaleoni

AbstractA discussion of the dominant factors affecting the behaviour of long span cable supported bridges is the subject of this paper. The main issue is the evolution of properties and response of the bridge with the size of the structure, represented by the critical parameter of span length, showing how this affects the conceptual design. After a review of the present state of the art, perspectives for future developments are discussed.


Author(s):  
V.E. Cosslett

The invitation to give this opening survey included the suggestion to say something about past as well as future developments, about yesterday as well as tomorrow. A retrospective view is in any event obligatory if the present state of the subject is to be properly displayed, and I am happy to adopt this approach. It happens that recently we added an original RCA type EMB instrument to our historical collection in the Cavendish Laboratory, that goes back through Bragg and Eutherford to Thomson, Eayleigh and Maxwell. My first experience of electron microscopy was in fact gained on the EMB, and soon afterwards on the 1940 Siemens UM100. So I thought it would be interesting to compare the present generation of microscopes with those old originals.


1996 ◽  
Vol 43 (1) ◽  
pp. 23-29 ◽  
Author(s):  
R. Bansevicius ◽  
R. Parkin ◽  
A. Jebb ◽  
J. Knight

1984 ◽  
Vol 29 (4) ◽  
pp. 344-346
Author(s):  
Peter A. Magaro

2002 ◽  
Vol 20 (4) ◽  
pp. 595-597 ◽  
Author(s):  
D.G. KOSHKAREV

Recently the “fast ignition” method in the ICF problem was considered (Caruso & Pais, 1996). It allows increasing a target gain factor and raising reliability of the burning process. Since the required power of the irradiating beam in this method is unattainable for the traditional type of heavy ion driver with the energy of ions ≤10 GeV, the powerful laser is considered as a possible driver only. Here we investigate the fast ignition method for a system constituted from the directly irradiated cylindrical target and a powerful heavy ion driver of the charge-symmetric type (Koshkarev, 1993) in which the ions with energy ≈100 GeV and mass ≈200 are used. The actual design of a powerful heavy ion driver with the required characteristics is outside the purpose of this article. However some consideration will be given to exploring whether such a performance is within the realm of reasonable extrapolations of the present state of the art.


1985 ◽  
Vol 19 (1) ◽  
pp. 9-33 ◽  
Author(s):  
J. L. Berggren

In Recent Years, many discoveries in the history of Islamic mathematics have not been reported outside the specialist literature, even though they raise issues of interest to a larger audience. Thus, our aim in writing this survey is to provide to scholars of Islamic culture an account of the major themes and discoveries of the last decade of research on the history of mathematics in the Islamic world. However, the subject of mathematics comprised much more than what a modern mathematician might think of as belonging to mathematics, so our survey is an overview of what may best be called the “mathematical sciences” in Islam; that is, in addition to such topics as arithmetic, algebra, and geometry we will also be interested in mechanics, optics, and mathematical instruments.


2001 ◽  
Vol 40 (4) ◽  
pp. 459-469 ◽  
Author(s):  
M. Bestetti ◽  
U. Ducati ◽  
G. Kelsall ◽  
G. Li ◽  
E. Guerra ◽  
...  

2006 ◽  
Vol 2 (14) ◽  
pp. 473-473
Author(s):  
Sophie Pireaux ◽  
E. Myles Standish ◽  
Elena V. Pitjeva ◽  
Jean-Pierre Rozelot

AbstractWe discuss the present state of the art of the solar quadrupole moment from planetary ephemerides.


1993 ◽  
Vol 14 (4-5) ◽  
pp. 433-447 ◽  
Author(s):  
Heiner Denker ◽  
Wolfgang Torge

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