Increased Corrosion Resistance of Zinc Magnesium Aluminum Galvanised Coating through Germanium Additions

The corrosion performance of a Zinc Magnesium Aluminium alloy was shown to improve through the addition of a quaternary element, Germanium. Improved corrosion resistance can be attributed to microstructural changes in the alloy due to Ge addition while in the molten state. The proportion of the most active MgZn2 phase which has been shown to initiate the corrosion reaction in a ZMA alloy was reduced thorough the formation of Mg2Ge crystals. The formation of crystal structures within the alloy also increased the heterogeneous nucleation of the primary zinc phase. The Scanning Vibrating Electrode Technique (SVET) was used to measure the rate of corrosion, anode life and zinc loss of the alloy samples. The results showed a zinc loss of around 50% when compared to standard ZMA alloy without Ge addition

Weeds in systems with dryland cotton: a scoping study

A scoping study is determining the main weed issues in the different cropping systems with dryland cotton

Examining peer-controlled KR schedules during the learning of a movement-timing task as a function of task experience.

Learners can be provided with feedback in the form of knowledge of results (KR), under self-controlled and peer-controlled schedules. Recently, McRae, Hansen, and Patterson (2015), identified that inexperienced peers can provide KR that can facilitate motor skill acquisition. However, it is currently unknown whether previous task experience differentially impacts how peers present learners with KR and whether this KR impacts motor skill acquisition. In the present study, participants were randomly assigned to become inexperienced peer facilitators, learners with an inexperienced peer, learners with self-control who later became experienced peers, learners with an experienced peer, or learners in a control group. During acquisition learners completed a serial-timing task with a goal of 2500ms and returned approximately twenty four hours later for a delayed retention, time transfer, and pattern transfer test. We predicted that during the delayed tests, learners with self-control would outperform all other groups. Furthermore, we predicted that learners who received KR from experienced peers would outperform learners who received KR from inexperienced peers. However, our results indicated that participants who received peer-controlled and self-controlled KR schedules learned the task in an equivalent manner. Thus, our results are novel as they identify that inexperienced peers can provide KR that is as effective as KR provided by experienced peers and KR requested under self-controlled conditions

Worldviews and the American West: The Life of the Place Itself

A diverse group of writers and scholars follow the lead of noted folklorist Barre Toelken and consider, from the inside, the ways in which varied cultures in the American West understand and express their relations to the world around them. As Barre Toelken puts it in The Dynamics of Folklore, \u27Worldview\u27 refers to the manner in which a culture sees and expresses its relation to the world around it. In Worldviews and the American West, seventeen notable authors and scholars, employing diverse approaches and styles, apply Toelken\u27s ideas about worldview to the American West. While the contributors represent a range of voices, methods, and visions, they are integrated through their focus on the theme of worldview in one region. Worldviews and the American West includes essays by Margaret K. Brady, Hal Cannon, Nora Marks Dauenhauer and Richard Dauenhauer, James S. Griffith, Barry Lopez, Robert McCarl, Elliott Oring, Twilo Scofield, Steve Siporin, Kim Stafford, C. W. Sullivan III, Jeannie B. Thomas, George Venn, George B. Wasson, and William A. Wilson. Each of the authors in this collection attempts to get inside one or more of the worldviews of the many cultures that have come to share and interpret the American West. The result is a lively mix of styles and voices as the authors\u27 own worldviews interact with the multiple perspectives of the diverse peoples (and, in Barry Lopez\u27s The Language of Animals, other species) of the West. This diversity matches the geography of the region they all call home and gives varied life and meaning to its physical and cultural landscape.https://digitalcommons.usu.edu/usupress_pubs/1022/thumbnail.jp

Capture4VR: From VR Photography to VR Video

Virtual reality (VR) enables the display of dynamic visual content with unparalleled realism and immersion. However, VR is also still a relatively young medium that requires new ways to author content, particularly for visual content that is captured from the real world. This course, therefore, provides a comprehensive overview of the latest progress in bringing photographs and video into VR. Ultimately, the techniques, approaches and systems we discuss aim to faithfully capture the visual appearance and dynamics of the real world, and to bring it into virtual reality to create unparalleled realism and immersion by providing freedom of head motion and motion parallax, which is a vital depth cue for the human visual system. In this half-day course, we take the audience on a journey from VR photography to VR video that began more than a century ago but which has accelerated tremendously in the last five years. We discuss both commercial state-of-the-art systems by Facebook, Google and Microsoft, as well as the latest research techniques and prototypes

Recommendations for measuring tennis racket parameters

Tennis rackets have advanced significantly since the invention of the game in 1874, including innovations in both shape and materials. Advances in these design parameters have implications for racket performance, especially swing speed. This study tested one hundred rackets, spanning brands and eras, using simple, portable instruments in order to pilot protocols and make recommendations for streamlining testing procedures for tennis rackets. A wide range of properties were measured and documented for each racket. We suggest that since Transverse and Lateral Moment of Inertia are well correlated, measuring both is not necessary when processing a large number of rackets. In addition, it is also possible to predict the Transverse Moment of Inertia well from models that use simple dimension and mass measurements, which may be preferable in larger studies. Exploring the use of more complex modelling will allow us to better understand the impact of tennis racket design on performance in the future

Linking Education and Economic Development: Three Models of Education Reform for the City of Detroit

This report explored an increase in educational attainment through academic programs, mentoring, and internships to improve the workforce and increase economic development activities. Education is linked to higher wages, increased job stability and higher job satisfaction. If more people are working and making higher wages then more money is spent in the region, thereby strengthening the economy. Knowledge is power and if a region would like to strengthen its economy, especially fiscally distressed areas, it must take innovative actions to invest in human capital to attract new jobs and economic development