scholarly journals Year 2015 Benchmark Analysis on Realizing Performance and Emissions of Combustion Boilers

2017 ◽  
Vol 4 (1) ◽  
pp. 121
Author(s):  
Jack Fuller ◽  
Yang Guo

This current research effort will consider boiler conditions in 2015. The analysis was based on data gathered from a voluntary survey completed by plant owners and operators. The survey responses included the following: (1) boiler fuel sources, (2) efficiency performance, (3) environmental performance, (4) operations and maintenance activities, and (5) boiler availability. The analysis also included future concerns with respect to daily boiler operations from the responding plant operators and management.

1977 ◽  
Vol 36 (2) ◽  
pp. 284-325 ◽  
Author(s):  
A. I. Ogus ◽  
G. M. Richardson

The English lawyer has been notoriously unwilling to admit the relevance of social sciences to his discipline. In part, this may be attributed to his lack of formal training in economics or sociology. As regards the latter, there are some signs of the handicap being overcome: much current research effort is now being directed to the interpretation of law and the legal system as social phenomena. But the application of economic reasoning to legal instruments and institutions has been limited and tentative. Although it has long been recognised that a marriage of the two disciplines is necessary for the procreation of effective norms in areas where the law clearly governs economic activities, for example, the regulation of trade and income redistribution, so far, in this country at least, creative thinking about central legal institutions such as tort, contract, property and crime has remained relatively untouched by such a mode of analysis. Yet, as Americans have demonstrated, there is nothing inappropriate in such an exercise. At first sight the subject areas of economics and law will appear to diverge significantly: the former is “concerned with the manner in which a society produces, distributes and consumes wealth when it is constrained by scarcity, either of tangible resources or of intangible resources,” while the latter is often viewed as a system of norms governing the conduct of individuals and institutions. Yet such conduct will generally involve the transfer and acquisition of resources. With this congruence of interest, therefore, the opportunity exists to compare economic analysis with prevailing legal rules on particular issues to see whether the “right” solution is reached.


1994 ◽  
Vol 47 (11) ◽  
pp. 517-544 ◽  
Author(s):  
Serge Abrate

Impact damage in structures made out of composite materials is a major concern since such damage can be introduced during the life of the structure, and its mechanical properties can be drastically reduced as a result. In a previous review of the literature on impact on composite materials, this author considered 285 published before 1989. In this article over 300 articles most of which appeared after 1989 are reviewed. These figures indicate that this is a very active area of research, and the present paper seeks to present a comprehensive view of the latest developments. Taken together, these two reviews present a comprehensive view of the state of knowledge in the area. Most the current research effort is focused on low velocity impact damage and, in particular, the damage predictions and the evaluation and prediction of residual properties of damaged laminates. A significant number of papers deal with ballistic impacts on laminated composites and the use of composite materials in designing light armor.


Author(s):  
Maxime Boccas ◽  
Sergio Gonzalez ◽  
Michel Frantz ◽  
Vittorio Nurzia ◽  
Christian Stephan ◽  
...  

2002 ◽  
Vol 36 (3) ◽  
pp. 327-339 ◽  
Author(s):  
Kathleen M. Griffiths ◽  
Anthony F. Jorm ◽  
Helen Christensen ◽  
Jo Medway ◽  
Keith B.G. Dear

Crystals ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 12 ◽  
Author(s):  
Mihai R. Gherase ◽  
David E. B. Fleming

For the past several decades, synchrotron radiation has been extensively used to measure the spatial distribution and chemical affinity of elements found in trace concentrations (<few µg/g) in animal and human tissues. Intense and highly focused (lateral size of several micrometers) X-ray beams combined with small steps of photon energy tuning (2–3 eV) of synchrotron radiation allowed X-ray fluorescence (XRF) and X-ray absorption spectroscopy (XAS) techniques to nondestructively and simultaneously detect trace elements as well as identify their chemical affinity and speciation in situ, respectively. Although limited by measurement time and radiation damage to the tissue, these techniques are commonly used to obtain two-dimensional and three-dimensional maps of several elements at synchrotron facilities around the world. The spatial distribution and chemistry of the trace elements obtained is then correlated to the targeted anatomical structures and to the biological functions (normal or pathological). For example, synchrotron-based in vitro studies of various human tissues showed significant differences between the normal and pathological distributions of metallic trace elements such as iron, zinc, copper, and lead in relation to human diseases ranging from Parkinson’s disease and cancer to osteoporosis and osteoarthritis. Current research effort is aimed at not only measuring the abnormal elemental distributions associated with various diseases, but also indicate or discover possible biological mechanisms that could explain such observations. While a number of studies confirmed and strengthened previous knowledge, others revealed or suggested new possible roles of trace elements or provided a more accurate spatial distribution in relation to the underlying histology. This area of research is at the intersection of several current fundamental and applied scientific inquiries such as metabolomics, medicine, biochemistry, toxicology, food science, health physics, and environmental and public health.


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