Projecting for \u3ci\u3eMacbeth\u3c/i\u3e, Theatre Software, and a Thank You to Figure53

In 2015, Northwestern College’s Theatre Department staged William Shakespeare’s Macbeth. Theatre faculty Drew Schmidt and student Caroline M. Trewet designed and prepared floor projections for the production. In this hybrid piece for the Northwestern Review, Schmidt provides an introductory primer text and then Schmidt and Trewet provide a thank you video explaining to Figure53, a company that creates theatre software, and all viewers how they utilized the program and equipment

United Way 21 CCLC - Minnesota Student Survey

The United Way of Central Minnesota aims to close the gap between the education level of students and the income class of their families. During this presentation, we will analyze and make conclusions from a set of data that was collected by the United Way of Central Minnesota on students. This set of data looked at a variety of different things, including which after school center the student attended, their feelings about school, and if they are on a free or reduced-price lunch at school. Our graphs and pivot tables are representations of what we discovered from this dataset

Development of a Light-Commercial Compressor Load Stand to Measure Compressor Performance Using Low-GWP Refrigerants

Popular hydrofluorocarbon refrigerants such as R134a and R410A are in the process of being phased out due to the high Global Warming Potential (GWP) of these fluids. A large variety of low-GWP refrigerants are being considered as replacements including R1234yf, R1234ze(E), R1234ze(D), R32, and blends of these with traditional refrigerants. As a result of high efficiency standards for HVAC&R equipment, the choice of refrigerant has a large impact on the design of a compressor to maximize its efficiency. Therefore, changing the most common refrigerants will require significant design changes to compressors and test environments that support re-design activities such as a hot-gas bypass compressor load stand. The hot-gas bypass style is a common system design to test compressors and is used for its many benefits, including rapid transition between testing conditions and low operational cost. A thermodynamic model of a hot-gas bypass cycle has been developed in Engineering Equation Solver (EES). Outputs from this model were used to select the components and tubing sizes in combination with ASHRAE guidelines. The design capacity for the load stand is a range of 10-80 tons (35-281 kW) compressor capacity. The large range in capacities desired created many design challenges to overcome including maintaining proper oil circulation and refrigerant velocity. The compressor load stand is capable of testing the performance of different compressors over a range of operating conditions. It also includes independent control over oil circulation/injection rate as well as a dedicated economizer circuit. These capabilities can then be used to optimize a wide spectrum of compressor types on low-GWP refrigerants. Ultimately, the load stand serves as a new addition to the thermal systems research infrastructure at Oklahoma State University. This allows for the continuation of research into new compressor technologies, as well as, for improvements in compressor efficiency in existing technologies.Mechanical and Aerospace Engineerin

Reconciling Warming Trends

Climate models projected stronger warming over the past 15 years than has been seen in observations. Conspiring factors of errors in volcanic and solar inputs, representations of aerosols, and El NiNo evolution, may explain most of the discrepancy

2XMMi J225036.9+573154 - a new eclipsing AM Her binary discovered using XMM-Newton

We report the discovery of an eclipsing polar, 2XMMi J225036.9+573154, using XMM-Newton. It was discovered by searching the light curves in the 2XMMi catalogue for objects showing X-ray variability. Its X-ray light curve shows a total eclipse of the white dwarf by the secondary star every 174 mins. An extended pre-eclipse absorption dip is observed in soft X-rays at phi=0.8-0.9, with evidence for a further dip in the soft X-ray light curve at phi~0.4. Further, X-rays are seen from all orbital phases (apart from the eclipse) which makes it unusual amongst eclipsing polars. We have identified the optical counterpart, which is faint (r=21), and shows a deep eclipse (>3.5 mag in white light). Its X-ray spectrum does not show a distinct soft X-ray component which is seen in many, but not all, polars. Its optical spectrum shows Halpha in emission for a fraction of the orbital period.Comment: Accepted for publication in MNRA