Guest Editorial: Tribocorrosion 2009: East meets West

The 2nd International Symposium on TriboCorrosion held on the 17th and 18th of March 2009, at the Austrian Center of Competence for Tribology, Wiener Neustadt, was a seamlessly smooth transition from the colour of vibrancy of India where the 1st International Conference in TriboCorrosion was held in 2006, to the spectacular beauty of the scenery of Austria. Starting on March 17th, St Patrick's day, the organizers were hoping for the "rub of the green" (the luck of the Irish) and what emerged during the conference, a collective and lively gathering of new and established researchers, certainly lived up to its expectations. The aim of this symposium was not only to assemble specialists in this subject from across the world to address ongoing research issues but also to contemplate education transfer of knowledge and technical innovation, and imbue our young people in the area with an enthusiasm for the topic

Distribution of the Water Scorpion \u3ci\u3eNepa Apiculata\u3c/i\u3e (Hemiptera: Nepidae) in Wisconsin

The water scorpion Nepa apiculata Uhler was considered rare in Wiscon- sin by Hilsenhoff (1984), who collected only 11 individuals during a 25-year period. All of his collections were from overwintering sites, especially debris in streams, during early spring or autumn (Hilsenhoff, pers. comm.). He concluded that the species was restricted to southern Wisconsin. Recent collections indicate that N. apiculata is more widely distributed. These records, summarized below, are documented with specimens in the University of Wisconsin-Madison insect collection

The string tension in the maximally Abelian gauge after smoothing

We apply smoothing to SU(2) lattice field configurations in 3+1 dimensions before fixing to the maximally Abelian gauge. The Abelian projected string tension is shown to be stable under this, whilst the monopole string tension declines by O(30%). Blocking of the SU(2) fields reduces this effect, but the use of extended monopole definitions does not. We discuss these results in the context of additional confining excitations in the U(1) vacuum.Comment: LATTICE98(confine

Monopole Spectra in non-Abelian Gauge Theories

We study the continuum limit of the length spectrum of magnetic monopole structures found after various Abelian projections of pure gauge SU(2), including the maximally Abelian gauge. We comment on Gribov copies, and measurements of the string tension.Comment: Talk presented at LATTICE96(topology) LaTeX, with 4 LaTeX figure

The impact of financial hardship on single parents: an exploration of the journey from social distress to seeking help

Single parent families are at high risk of financial hardship which may impact on psychological wellbeing. This study explored the impact of financial hardship on wellbeing on fifteen single parents. Semi-structured interviews were conducted and analysed using constructivist thematic analysis. Participants described food and fuel poverty, and the need to make sacrifices to ensure that children's basic needs were met. In some cases, participants went without food and struggled to pay bills. Isolation, anxiety, depression, paranoia, and suicidal thoughts were described . However, participants reported that psychological services not able to take the needs of single parents into account. Support for single parents must acknowledge the impact of social circumstances and give more consideration economic drivers of distress

Wall-temperature effects on the aerodynamics of a hydrogen-fueled transport concept in Mach 8 blowdown and shock tunnels

Results are presented from two separate tests on the same blended wing-body hydrogen fueled transport model at a Mach number of about 8 and a range of Reynolds numbers (based on theoretical body length) of 0.597 x 10 to the 6th power to about 156.22 x 10 to the 6th power. Tests were made in conventional hypersonic blowdown tunnel and a hypersonic shock tunnel at angles of attack of -2 deg to about 8 deg, with an extensive study made at a constant angle of attack of 3 deg. The model boundary-layer flow varied from laminar at the lower Reynolds numbers to predominantly turbulent at the higher Reynolds numbers. Model wall temperatures and stream static temperatures varied widely between the two tests, particularly at the lower Reynolds numbers. These temperature differences resulted in marked variations of the axial-force coefficients between the two tests, due in part to the effects of induced pressure and viscous interaction variations. The normal-force coefficient was essentially independent of Reynolds number. Analysis of results utilized current theoretical computer programs and basic boundary-layer theory

Magnetic monopole clusters, and monopole dominance after smoothing in the maximally Abelian gauge of SU(2)

In the maximally Abelian gauge of SU(2), the clusters of monopole current are found to divide into two distinct classes. The largest cluster permeates the lattice, has a density that scales and produces the string tension. The remaining clusters possess an approximate 1/l^3 number density distribution (l is the cluster length), their radii vary as \sqrt l and their total current density does not scale. Their contribution to the string tension is compatible with being exactly zero. Their number density can be thought of as arising from an underlying scale invariant distribution. This suggests that they are not related to instantons. We also observe that when we locally smoothen the SU(2) fields by cooling, the string tension due to monopoles becomes much smaller than the SU(2) string tension. This dramatic loss of Abelian/monopole dominance occurs even after just one cooling step.Comment: Talk presented at LATTICE97(topology). LaTeX, with 4 PS figure

Some remarks on particle size effects on the abrasion of a range of Fe based alloys

The low-stress three body abrasion behaviour of a range of steels was investigated. The tests were carried out in a rubber wheel tester (according to ASTM G65-94, reapproved in 2000) at room temperature. The abrasive particles used were angular alumina particles of four different sizes. The results showed that, in general, the smaller particles (50 8m and 125 8m average size) caused more damage. With these particles, observations of surface morphology indicarted a more intense cutting and ploughing action, leading to more damage, whereas bigger particles i.e. larger 250 8m and 560 8m particles produced less damage, and their action involved more plastic deformation type wear. The 304 SS had a lower abrasion resistance than the 310 SS. For the austentic and ferritic steels the subsurface deformation was larger for impact with the coarser particles. Variations in substrate hardness had no effect on the abrasive behaviour observed. On the whole, the hardest steel (mild steel in martensitic condition) showed the higher extent of damage, irrespective of particle size

Petition to Move the GLBT Center Out of Adams Hall 2009

Brian Stack began passing around this petition to relocate the GLBT Center 12/07/09. Petition to Move the GLBT Center Out of Adams Hall 2009; Moving out of Adams Hall to its own building would give the center more legitimacy and would look more professional. Having its own building would make it easier to accommodate the many guests that come to different programs for things such as Conversation Groups, Welcome Project and the GLBT Symposium as well as the many different events that the center cosponsors.; Because of its location near other dorms the Center has been targeted for hate crimes in the past and the atmosphere around the dorm can be intolerant for GLBTIQQ students. The current center is not large enough to hold the growing number of people coming weekly meetings. Attendance is increasing as time goes on, making space more important.; Moving the center to a house can be done in an affordable way that benefits both the center and the University. Many people are unable to get into the GLBT Center because of the current card restrictions on getting into dorms. This applies to both students as well as Faculty/Staff. A house would allow the Center to do more work such as adding a computer lab, working with residential life and sponsoring educational as well as GLBTIQQ centered programs. A house would allow for other outside groups (PFLAG, Churches, Gay-Straight Alliances etc) to come and use the facility with easy access and a tolerant environment. Because it is in a dorm the center is unable to do some of the programs it would like such as gender-neutral bathrooms.; Having the GLBT Center in a house would show prospective students that there is an open and accepting environment for GLBTIQQ people who want to come to URI The dorm setting is not conducive to many students and programs as it can be loud and some people may not want to be seen going into the dorm the center is in. The current center is not a place where it is easy to monitor who goes in and out of the center.; Some people in Adams Hall who are not friendly to the GLBTIQQ community can come in and vandalize the center because of its location. Having a center with residential living would give an alternate rooming situation to GLBTIQQ students put in a poor roommate situation Having the GLBT Center in a similar situation to the Women’s Center would allow for a more open and affirming campus climate and would allow the center to put on more projects and do more support for the community