the main objective of this article is to identify and evaluate the accelerating factor in the iranian oil nationalization movement. the main question is: what was the accelerating factor that put the iranian oil nationalization movement into practice? the article relies on the reform movement theory of neil smelser. for this purpose, fraud in the 16thnational election of the parliament, and est...

The accelerating gradient performance of superconducting niobium cavities is rapidly progressing as a result of reduced field emission due to improvement in surface preparation techniques. Beyond the field emission limitation, there exists a fundamental limit imposed by the critical magnetic field of niobium. One way to tackle this limit is to reduce the ratio of the peak magnetic field to the ...

Here we describe a Linac, driven by a Traveling Laser Focus (TLF), arranged with the help of a special deflecting device. This Linac has an accelerating structure, which is open from one side. The laser radiation is focused from this side onto a spot with minimal transverse dimensions. This spot is moved by a fast deflecting device in synchronism with the instantaneous position of the charged p...

Abstract Interpretation proposes advanced techniques for static analysis of programs that raise specific challenges for machinechecked soundness proofs. Most classical dataflow analysis techniques iterate operators on lattices without infinite ascending chains. In contrast, abstract interpreters are looking for fixpoints in infinite lattices whereinterpreters are looking for fixpoints in infini...

Planar accelerating structures, so called muffin tins, are of great interest for new accelerating techniques which are operating at high frequencies. At present the upper frequency limit for high power sources is 29.9855 GHz available at CERN. Therefore a new design of a planar traveling wave constant impedance accelerating structure is presented. A fully engineered 37-cell prototype with an op...

We discuss techniques for accelerating the self-consistent field iteration for solving the Kohn–Sham equations. These techniques are all based on constructing approximations to the inverse of the Jacobian associated with a fixed point map satisfied by the total potential. They can be viewed as preconditioners for a fixed point iteration. We point out different requirements for constructing prec...

This report describes parallelization techniques for accelerating a broad class of recurrences on processors with instruction level parallelism. We introduce a new technique, called blocked back-substitution, which has lower operation count and higher performance than previous methods. The blocked back-substitution technique requires unrolling and non-symmetric optimization of innermost loop it...

© Copyright Hewlett-Packard Company 1992 Compilers for VLIW and superscalar processors have to expose instruction-level parallelism to effectively utilize the hardware. Software pipelining is a scheduling technique to overlap successive iterations of loops, while superblock scheduling extracts ILP from frequently executed traces. This paper describes an effort to employ both software pipelining...