Atomic Energy of Canada Limited

About: Atomic Energy of Canada Limited is a company organization based out in Ottawa, Ontario, Canada. It is known for research contribution in the topics: Neutron & Zirconium alloy. The organization has 4845 authors who have published 4826 publications receiving 102951 citations.

Spin correlations near the percolation threshold in three-dimensional antiferromagnets

Abstract: In this paper we report on a study, using neutron scattering techniques, of the spin fluctuations in the random magnetic-nonmagnetic antiferromagnets, Mn/sub c/Zn/sub 1-c/F/sub 2/ and KMn/sub c/Zn/sub 1-c/F/sub 3/, with c close to the percolation concentration c/sub p/. The results for cc/sub p/ show two unexpected features. Firstly the diffuse scattering does not show any critical scattering associated with the onset of long-range order. We suggest this may be because only a small fraction of spins are in the backbone of the infinite cluster. Secondly in KMn/sub c/Zn/sub 1-c/F/sub 3/ the long-range order decreases on cooling below 6 K. We suggest that this may result from the random magnetic dipole-dipole forces producing a type of spin-glass phase.

A pulse radiolysis study of I and (SCN) in aqueous solutions over the temperature range 15–90°C

Abstract: The extinction coefficients and the decay kinetics of I2 and (SCN)2 have been characterized over the 15-90C-temperature range. The extinction coefficients of I2 at 385 and 725 nm were determined to be 10,000 and 2560M cm , respectively, based on the extinction coefficient of (SCN)2 at 475 nm being equal to 7600M cm . At these three wavelengths, all extinction coefficients were constant over the temperature range studied. The rate of decay of both I2 and (SCN)2 was found to be a function of I and SCN concentration, respectively, as well as temperature. 28 references, 5 figures.

Managing Risk: The Human Element

Abstract: The human element is the principle cause of incidents and accidents in all technology industries; hence it is evident that an understanding of the interaction between humans and technology is crucial to the effective management of risk. Despite this, no tested model that explicitly and quantitatively includes the human element in risk prediction is currently available. Managing Risk: the Human Element combines descriptive and explanatory text with theoretical and mathematical analysis, offering important new concepts that can be used to improve the management of risk, trend analysis and prediction, and hence affect the accident rate in technological industries. It uses examples of major accidents to identify common causal factors, or echoes, and argues that the use of specific experience parameters for each particular industry is vital to achieving a minimum error rate as defined by mathematical prediction. New ideas for the perception, calculation and prediction of risk are introduced, and safety management is covered in depth, including for rare events and unknown outcomes Discusses applications to multiple industries including nuclear, aviation, medical, shipping, chemical, industrial, railway, offshore oil and gas; Shows consistency between learning for large systems and technologies with the psychological models of learning from error correction at the personal level; Offers the expertise of key leading industry figures involved in safety work in the civil aviation and nuclear engineering industries; Incorporates numerous fascinating case studies of key technological accidents. Managing Risk: the Human Element is an essential read for professional safety experts, human reliability experts and engineers in all technological industries, as well as risk analysts, corporate managers and statistical analysts. It is also of interest to professors, researchers and postgraduate students of reliability and safety engineering, and to experts in human performance. congratulations on what appears to be, at a high level of review, a significant contribution to the literatureI have found much to be admired in (your) research Mr. Joseph Fragola Vice President of Valador Inc. The book is not only technically informative, but also attractive to all concerned readers and easy to be comprehended at various level of educational background. It is truly an excellent book ever written for the safety risk managers and analysis professionals in the engineering community, especially in the high reliability organizations Dr Feng Hsu, Head of Risk Assessment and Management, NASA Goddard Space Flight Center I admire your courage in confronting your theoretical ideas with such diverse, ecologically valid data, and your success in capturing a major trend in them.I should add that I find all this quite inspiring . The idea that you need to find the right measure of accumulated experience and not just routinely used calendar time makes so much sense that it comes as a shock to realize that this is a new idea, Professor Stellan Ohlsson, Professor of Psychology, University of Illinois at Chicago