The thermodynamic properties of the wustite phase are studied

Study of the precise location of the wustite phase boundaries and the dependence of the partial pressure of oxygen on the temperature and composition of the solid phase was made. From the pressure of oxygen, the temperature and the composition thermodynamic quantities can be determined

Thinking with heritage: Past and present in lived futures

There is widespread recognition within futures studies that it is vital to engage with the past when thinking about the future. The disciplines of futures studies and history have much in common: historians have often been concerned with the future, and researchers in futures studies and foresight have noted the importance of working with history. Green (2012) suggests that ‘thinking with history’ is a valuable approach for futures researchers. In this paper, however, I argue that ‘thinking with heritage’ offers another approach towards engaging with the past, and one that is better suited to some kinds of futures work. I distinguish between two kinds of future narrative. ‘Instrumental futures’ (Michael, 2000) are concerned with using ideas of the future to further unexamined present-day interests: they are abstract and exchangeable, being removed from any particular social context. In contrast, ‘lived futures’, following Adam and Groves (2007), are concerned with particular places and groups, depending not just on future imaginaries at large in society but also the material and affective aspects of the social relations within which these groups are embedded. I suggest that futures research that aims to have a positive social impact should concern itself with recognising and developing lived futures over instrumental futures, and that thinking with heritage – engaging with the past through the interests and values of particular groups – is well-suited to supporting this. The argument draws on the different ways in which time is represented in these different ways of engaging with pasts and futures. Instrumental futures, in common with historicised accounts of the past, make use of a universal ‘empty time’ to sequence events or project extrapolations forward. Lived futures, alongside heritage, work with a ‘thick present’ in which past, present and future are interwoven through particular subjectivities. For futures researchers with an interest in further understanding and developing futures that are connected to the cares and interests of particular communities, I suggest that engaging with these communities’ heritage would be a practical way of ensuring that their work remains meaningful

Reparative futures in a thick, virtuous present

Reparative action is often justified by appealing to consequentialist or deontological ethics. This paper argues that these ethics are dependent on an assumed continuity between the present and the future, and, further, that this assumption is not warranted in the face of a complex and uncertain future. If this is the case, actions taken to repair historic and emerging harms may lack justification. To strengthen the case for reparative action, this paper describes an alternative approach, one based on virtue ethics, and suggests that virtuous action can be imagined taking place within a ‘thick present’. Reparative action, on this account, can be justified by appealing to the degree to which it addresses human flourishing, without having to depend on an unreliable future. This focus on the present does not foreclose a reparative future, but instead re-orients our relationship to it: reparative futures, on this account, become utopian lodestones that affirm our need to work for justice and repair, while the actions we take to bring them about can be justified through an appeal towards what matters in the present. But working in a thick, virtuous present is not without its own risks, and the paper describes some of the challenges that arise

Recent transonic unsteady pressure measurements at the NASA Langley Research Center

Four semispan wing model configurations were studied in the Transonic Dynamics Tunnel (TDT). The first model had a clipped delta planform with a circular arc airfoil, the second model had a high aspect ratio planform with a supercritical airfoil, the third model has a rectangular planform with a supercritical airfoil and the fourth model had a high aspect ratio planform with a supercritical airfoil. To generate unsteady flow, the first and third models were equipped with pitch oscillation mechanisms and the first, second and fourth models were equipped with control surface oscillation mechanisms. The fourth model was similar in planform and airfoil shape to the second model, but it is the only one of the four models that has an elastic wing structure. The unsteady pressure studies of the four models are described and some typical results for each model are presented. Comparison of selected experimental data with analytical results also are included

Dental Service Utilization in an Academic Setting: An Analysis for Improved Oral Health

The National Oral Health Surveillance System (NOHSS) is the result of a collaborative effort between the Centers for Disease Control and Prevention and the Association of State and Territorial Dental Directors which is designed to monitor aspects of oral health and disease on both a national and state level. The NOHSS ranks Kentucky at or near the bottom in most oral health indicators. The primary message of the Surgeon General’s May 2000 report on Oral Health in America was to emphasize the link between oral health and overall health including the effect on day‐to‐day activities such as work and school attendance. As one of the University of Kentucky’s six healthcare colleges, the College of Dentistry’s mission focuses on improving oral health within Kentucky and beyond. This is accomplished through a multi‐pronged mission including research, outreach, education of future dentists, and providing patient care to the citizens of the Commonwealth. The College also administers a self‐funded dental insurance product, UK Dental Care, which is offered to the University’s employees and their families. The focus of this paper is on the College of Dentistry’s provision of dental services and how the analysis of this utilization data can aid the College in fulfilling its mission of improving oral health. Data were extracted from axiUm, the College of Dentistry’s dental patient management software, which contained the frequency of treatment encounters between July 1, 2009 and June 30, 2010 for patients in one of four payor groups. The data also included the age, gender and treatment cost for each encounter as well. The dataset was subdivided into adult and child datasets and further divided into age groups. Research has shown that receiving preventive dental services decreases the need for more expensive services in the future. It has also been shown that individuals with dental insurance are more likely to seek dental services than those who are uninsured and those who are female are more likely to report a visit to the dentist than males. While additional analysis is needed to evaluate the effect of early preventive services on this population, it was shown that the frequency of treatment encounters for both females and the insured were higher than for males and the uninsured. The results of this analysis led the author to make the following recommendations. Additional data analysis is needed to understand the characteristics and utilization patterns of the 25% of child treatment encounters which were uninsured and to evaluate the benefits and feasibility of the University fully or partially funding dental insurance benefits for its employees. Conducting an access‐to‐care analysis would inform the College’s administration of the current state of appointment availability and the potential impact of increasing volumes resulting from patient education and marketing. Lastly, additional financial resources should be allocated to fund a full‐time dedicated manager for the College’s self‐funded dental insurance product, UK Dental Care

Strength anisotropy of rock: a theoretical and experimental study

The use of X-ray texture analysis techniques enables a simplified picture of the microstructure of a rock to be built up. In this thesis it is shown that, in spite of a wealth of evidence on pre-failure rock behaviour, a simple application of Griffith theory to the assumed microstructure can provide an adequate description of the failure characteristics of an anisotropic rock. It is suggested that the crystallite structure within the rock controls the pre-failure activity in such a way as eventually to produce the crack formation initially deduced from that crystallite structure. These conclusions are drawn from work done on two rocks of different character, Penrhyn Slate and Lumley Mudstone

Close-Range Photogrammetric Measurement of Static Deflections for an Aeroelastic Supercritical Wing

Close range photogrammetric measurements were made for the lower wing surface of a full span aspect ratio 10.3 aeroelastic supercritical research wing. The measurements were made during wind tunnel tests for quasi-steady pressure distributions on the wing. The tests were conducted in the NASA Langley Transonic Dynamics Tunnel at Mach numbers up to 0.90 and dynamic pressures up to 300 pounds per square foot. Deflection data were obtained for 57 locations on the wing lower surface using dual non-metric cameras. Representative data are presented as graphical overview to show variations and trends of spar deflection with test variables. Comparative data are presented for photogrammetric and cathetometric results of measurements for the wing tip deflections. A tabulation of the basic measurements is presented in a supplement to this report

Transonic calculations for a flexible supercritical wing and comparison with experiment

Pressure data measured on the flexible DAST ARW-2 wing are compared with results calculated using the transonic small perturbation code XTRAN3S. A brief description of the analysis is given and a recently-developed grid coordinate transformation is described. Calculations are presented for the rigid and flexible wing for Mach numbers from 0.60 to 0.90 and dynamic pressures from 0 to 1000 psf. Calculated and measured static pressures and wing deflections are compared, and calculated static aeroelastic trends are given. Attempts to calculate the transonic instability boundary of the wing are described