Profitability and risk evaluation of novel perennial pasture systems for livestock producers in the high rainfall zone: Context, Approach and Preliminary Results

The decision to invest in pasture improvement raises various questions for the livestock grazier, with the most pertinent being about the potential returns and risks. In the high rainfall zone of south-west Victoria, researchers have trialled novel perennial pasture systems with the aim of substantially increasing on-farm profits whilst simultaneously improving environmental outcomes. Results from the Hamilton EverGraze® proof site have shown potential to greatly improve livestock production. Promotion of the pasture technology is the next step. Key to this process is developing information about profitability and risk regarding the decision to invest in the new pasture. To help meet this need a model of a representative mixed livestock farm system for the region has been developed to generate information about profit, cash wealth and risk to aid extension and help inform decisions. The farm is comprised of a wool and meat producing sheep system and a beef enterprise. Using the model, the performance of two of the novel pasture systems can be evaluated against current practice, and compared to determine which of the two is the most beneficial EverGraze® option for the future. The risk associated with the pasture decision is assessed by considering different price structures and seasonal outcomes, and evaluating these effects on net benefits. Discounted cash flows, net present values and internal rates of return are estimated for the alternative systems, which include the effects of this price and seasonal variability. Preliminary results have been calculated, however further work is needed to confirm these. The method and results of the analysis provide information that is valuable for farm decisions about investing in a new pasture system and provide a basis for future economic analyses at the case study site and elsewhere.Farm Management,

The Lantern Vol. 29, No. 1, December 1961

• King Fitzgerald\u27s Court • Deliberate Beyond Conception • Jean • The Dumb Superman • Epilogue to Death • Afternoon in August • Eichmann • A Nose Thumbed • Observation • The Forgetful Evening • Truditur Dies Die • The Deserted Pier • Thoughts on Love • Laughter • A Waste? • Villanelle: Interlude • Lines on a Rhetorical Question • Villanellehttps://digitalcommons.ursinus.edu/lantern/1081/thumbnail.jp

A framework for the evaluation of marine spatial data infrastructures - Accompanied by international case-studies

Germany is currently developing a marine data infrastructure addressing different topics such as coastal engineering, hydrography and surveying, protection of the marine environment, maritime conservation, regional planning, and coastal research. This undertaking is embedded in a series of regulations and developments at many administrative levels, from which specifications and courses of action are derived. To set up a conceptual framework for the marine data infrastructure of Germany (MDI-DE), scientists at the Chair for Geodesy and Geoinformatics at the Rostock University are building a reference model, evaluating meta-information systems and developing models to support common workflows in marine applications. Evaluating how other countries built their marine spatial infrastructures is important to learn where obstacles and errors are likely to occur. To be able to look at other initiatives from a neutral point of view, it is necessary to construct a framework for evaluating marine spatial data infrastructures (MSDI). This framework is then used to analyse and evaluate the efforts of Canada, Australia, and Ireland with respect to marine data infrastructures

Pipeline Applications

Discussion Grou

Pipeline Applications

Discussion GroupOperation (single, series, batch products, parallel) Maintenance (mechanical seals, bearings, pigging, vibration) Hydraulic rerates (destaging, volute chipping, volute inserts, impeller underfilling

Development And Testing Of A Very High Speed Oil Lubricated End Face Mechanical Seal.

Case StudySix large radial inflow turbines were designed to expand isobutane for two electric power plants in Nevada which use heat from the earth (geothermal energy) as the energy source. Double end face mechanical seals lubricated by oil were selected to stop the isobutane from leaking out of the closed loop system and into the atmosphere. Two of the largest providers of mechanical seals in the world provided reference lists showing that this application was pushing the tip speed limits for existing liquid end face mechanical seals. A vendor was selected and the seals were purchased. The first run of the seals on the test stand seemed successful, until the disassembly of the unit revealed the faces were severely overheated and heat checked. The face design was changed and the second test was successful. A major concern was to maintain a low seal leakage rate, so this was measured and was within the specified range. However, the third test resulted in a catastrophic failure of the rotating faces and collateral damage to the entire seal cartridge. Detailed investigation of the failure revealed several interesting problem areas. All of these were addressed in a new design which was implemented, built, and shipped in only one week! The fourth test was successful, but still showed a problem in which the very high velocity oil in the seal chamber was able to dislodge the stationary face retaining ring. A solution to this final problem was implemented and tested successfully. At the time of this abstract, the seals appear to be successful. Both plants (all six machines) have been placed on line successfully. Two seals experienced damage in the field due to problems with the lube oil filter housings. These problems will be discussed during the presentation

Bill Ralph's Last Lecture

Brock University Associate Professor of Mathematics Bill Ralph upon his pending retirement was challenged to share his passion for mathematics, research, teaching, calculus, music, art, and learning. This "Last Lecture" was captured by streaming video together with an accompanying transcript and Brock News promotional release. Bill presented before a full house of colleagues, friends, mentors, current and former students at Brock University's Pond Inlet on February 5, 2020. Bill's lecture was introduced by colleague and friend Dorothy Levay, Instructor and Manager of Academic Support in Brock University’s Department of Mathematics and Statistics. Using animated video, quotes, pictures, images, and stories - Bill shared his lifelong love of learning, discovery, teaching, and mathematics. Bill summarized his perspective on teaching as kindness mixed with high standards. Bill commented that "Teaching to me is high standards. I think I’ve had pretty high standards and a great deal of kindness. Kindness mixed with high standards. We have to be kind when we teach students. It's not easy being a student and we have to remember that and be aware of that. We also of course have to keep our standards." YouTube version available @ https://youtu.be/ZPcuFSa20j

Pipeline Applications

Discussion Grou

Pipeline Applications

Discussion GroupOperation (single, series, batch products, parallel) Maintenance (mechanical seals, bearings, pigging, vibration) Hydraulic rerates (destaging, volute chipping, volute inserts, impeller underfilling