Stress-strain characteristics of rubber-like materials: Experiment and analysis

The objectives are: (1) to demonstrate tensile testing of materials and the application of the concepts of stress and strain; and (2) to yield a mathematical relationship between stress and strain for many artificial rubbers and plastics. The experiment, supplies, and procedure are presented

Project Report No. 46, Loblolly Pine Plantations in East Texas Two Harvest Schedules No Thinning & Final Harvest at 25 Years Thin at 10 Years & Final Harvest at 25 Years Sawlog/Veneer Wood Flow Comparison, A Simulation

DOES A THINNING AT 10 YEARS WITH FINAL HARVEST AT 25 YEARS INCREASE SAWLOG/VENEER 1000 FLOW? DOES A THINNING AT 10 YEARS WITH FINAL HARVEST AT 25 YEARS INCREASE NET PRESENT VALUE

Project Report No. 46, Loblolly Pine Plantations in East Texas Two Harvest Schedules No Thinning & Final Harvest at 25 Years Thin at 10 Years & Final Harvest at 25 Years Sawlog/Veneer Wood Flow Comparison, A Simulation

DOES A THINNING AT 10 YEARS WITH FINAL HARVEST AT 25 YEARS INCREASE SAWLOG/VENEER 1000 FLOW? DOES A THINNING AT 10 YEARS WITH FINAL HARVEST AT 25 YEARS INCREASE NET PRESENT VALUE

Project Report No. 48, Loblolly Pine Plantations in East Texas Two Harvest Schedules No Thinning & Final Harvest at 30 years, Thin at 15 Years & Final Harvest at 30 years, Sawlog/Veneer Wood Flow Comparison, A Simulation

DOES A THINNING AT 15 YEARS WITH FINAL HARVEST AT 30 YEARS INCREASE SAWLOG/VENEER WOOD FLOW? DOES A THINNING AT 15 YEARS WITH FINAL HARVEST AT 30 YEARS INCREASE NET PRESENT VALUE

Project Report No. 48, Loblolly Pine Plantations in East Texas Two Harvest Schedules No Thinning & Final Harvest at 30 years, Thin at 15 Years & Final Harvest at 30 years, Sawlog/Veneer Wood Flow Comparison, A Simulation

DOES A THINNING AT 15 YEARS WITH FINAL HARVEST AT 30 YEARS INCREASE SAWLOG/VENEER WOOD FLOW? DOES A THINNING AT 15 YEARS WITH FINAL HARVEST AT 30 YEARS INCREASE NET PRESENT VALUE

Test results of a 40-kW Stirling engine and comparison with the NASA Lewis computer code predictions

A Stirling engine was tested without auxiliaries at Nasa-Lewis. Three different regenerator configurations were tested with hydrogen. The test objectives were: (1) to obtain steady-state and dynamic engine data, including indicated power, for validation of an existing computer model for this engine; and (2) to evaluate structurally the use of silicon carbide regenerators. This paper presents comparisons of the measured brake performance, indicated mean effective pressure, and cyclic pressure variations from those predicted by the code. The silicon carbide foam generators appear to be structurally suitable, but the foam matrix showed severely reduced performance

Attendance and Exam Performance at University

Marburger (2006) explored the link between absenteeism and exam performance by assessing the impact on absenteeism of removing a university wide policy of mandatory attendance for a single class. His results indicate that while an attendance policy has a strong impact on reducing absenteeism the link between absenteeism and exam performance is weak.This paper presents an alternative exploration into the link between absenteeism and exam performance by assessing the impact of implementing a module-specific attendance policy. Our results suggest the link between absenteeism and exam performance is strong, and that student-specific factors are important, including revision strategies and peer group effects. These results question the uniformity of the relationship between attendance and exam performance.absenteeism, attendance, exam performance, undergraduate, peer groups

Environmental Kuznets Curves: Mess or Meaning?

The shape of the relationship between the rate of environmental degradation and income per capita has been the subject of much empirical examination. When test results based around this so-called ‘environmental Kuznets curve’ are compared, the empirical evidence is neither consistently supportive of its traditional inverted-U shape nor uniform across pollutants. A deeper understanding of the characteristics of pollutants and of the derived demand and derived supply of pollutants needs to be achieved if environmental Kuznets curves are to be useful.Environmental Kuznets Curves, Empirical Evidence

Central Bank Transparency and Bank Lending rates: Australian Evidence

In the past fifteen years central banks have been taking steps towards greater monetary policy transparency. This paper uses a vector error correction model (VECM) to investigate the role transparency has had on changing the dynamics of the credit channel of the Australian monetary policy transmission mechanism. The Reserve Bank of Australia (RBA) lifted all interest rate restrictions in 1986, and then started to announce changes in the cash rate in January 1990 giving the financial system a clearly defined indication of its monetary policy stance. Furthermore, the RBA formalised its inflation targeting operating objective in 1996. This paper gives a clear indication of how a more transparent framework has affected the setting of bank lending rates over three distinct periods. Our results show that responsiveness of bank lending rates to monetary policy changes improved in each period corresponding to an innovation in monetary policy transparency. Moreover, Anticipation effects in banking lending rates are evident only in the period after the RBA formalised its inflation targeting operating objective in 1996. This suggests that Banks only changed lending rates once they had learnt that the RBA was communicating a credible commitment to change the path of future short-term interest rates. However, other results show that price discrimination has been evident between the business and household sectors. To our knowledge, this analysis is the first study that looks at the issue of central bank transparency on bank lending rates.Interest rates; monetary policy; central bank transparency; vector error correction model; variance decomposition