Ni-Cr textured substrates with reduced ferromagnetism for coated conductor applications

A series of biaxially textured Ni(1-x)Cr(x) materials, with compositions x = 0, 7, 9, 11, and 13 at % Cr, have been studied for use as substrate materials in coated conductor applications with high temperature superconductors. The magnetic properties were investigated, including the hysteretic loss in a Ni-7 at % Cr sample that was controllably deformed; for comparison, the loss was also measured in a similarly deformed pure Ni substrate. Complementary X-ray diffraction studies show that thermo-mechanical processing produces nearly complete {100} cube texturing, as desired for applications.Comment: PDF only; 19 pp., incl 10 figure

An exploration of clinical psychologists’ ethical sensitivity

Purpose: To understand how clinical psychologists identify ethical issues. The specific aims were to describe the process of ethical sensitivity and examine how clinical psychologists identify a need to engage in ethical decision-making. Design: A qualitative design was adopted using Grounded Theory method. Findings: Twelve clinical psychologists participated in semi-structured interviews. A model of how participants identified ethical issues was developed. The three core categories were discomfort, conscious realisation of an ethical problem and the impact of context on the assessment of the situation. The service context, specifically the balance of service demands to resources resulted in either thinking space or restricted thinking. Thinking space enabled participants to attend to their discomfort, understand its cause and identify a clash with their values. This process of ethical sensitivity being facilitated led to a restored sense of coherence with participants’ values. When the context restricted thinking this resulted in an ongoing emotional burden. Participants described this as unsustainable long-term and it had led several to changing jobs, reducing their hours or leaving the national healthcare service altogether to work for private providers or in independent private practice. Value: The paper details an empirically developed theory of clinical psychologists’ ethical sensitivity. It describes the process experienced by practicing clinical psychologists when noticing potential ethical issues in their work practice. Limitations are discussed and practical recommendations made for mental health services, clinical psychologists and supervisors

NEW CORDIERITE DIESEL PARTICULATE FILTERS FOR CATALYZED AND NON-CATALYZED APPLICATIONS

Cordierite diesel particulate filters provide an economical approach to diesel emissions control. However, further reduction in the pressure drop of catalyzed and non-catalyzed cordierite filters is desirable. In order to derive a fundamental understanding of the relationship between clean and sootloaded pressure drop and the pore microstructure of the ceramic, and to optimize the microstructure for filter performance, cordierite filters have been fabricated spanning an extended range in porosity, pore size distribution, and pore connectivity. Analysis of the results has been applied to the development of several new cordierite diesel particulate filters that possess a unique combination of high filtration efficiency, high strength, and very low clean and soot-loaded pressure drop. Furthermore, catalyst systems have been developed that result in a minimal pressure drop increase of the catalyzed filter. Optimization of porosity and cell geometry has enabled fabrication o f filters with either high or low thermal mass appropriate to the regeneration strategy employed for a given engine management system