Standard arc welders provide high amperage direct current source

Standard arc welders or power supplies are hooked up in parallel or series connections to obtain an adequate supply of current or voltage for various purposes. This method provides maximum flexibility in a wide range of voltages and currents

Continuously operating induction plasma accelerator Patent

Continuous operation, single phased, induction plasma accelerator producing supersonic speed

An Exploratory Investigation of the Effects of a Thin Plastic Film Cover on the Profile Drag of an Aircraft Wing Panel

Exploratory wind tunnel tests were conducted on a large chord aircraft wing panel to evaluate the potential for drag reduction resulting from the application of a thin plastic film cover. The tests were conducted at a Mach number of 0.15 over a Reynolds number range from about 7 x 10 to the 6th power to 63 x 10 to the 6th power

Wind-tunnel results for an improved 21-percent-thick low-speed airfoil section

Low speed wind tunnel tests were conducted to evaluate the effects on performance of modifying a 23 percent thick low speed airfoil. The airfoil contour was altered to reduce the upper-surface adverse pressure gradient and hence reduce boundary layer separation. The chord Reynolds number varied from about 2,000,000 to 9,000,000

Low-speed aerodynamic characteristics of a 13-percent-thick airfoil section designed for general aviation applications

Wind-tunnel tests were conducted to determine the low-speed section characteristics of a 13 percent-thick airfoil designed for general aviation applications. The results were compared with NACA 12 percent-thick sections and with the 17 percent-thick NASA airfoil. The tests were conducted ovar a Mach number range from 0.10 to 0.35. Chord Reynolds numbers varied from about 2,000,000 to 9,000,000

Non-Market Valuation of Open Space and Other Amenities Associated with Retention of Lands in Agricultural Use

The most productive farmland in southcentral Alaska is currently under intense development pressure due to rapid population increases and consequential increases in demand for suburban housing. This study utilizes a contingent valuation iterative bidding game to estimate the willingness of Matanuska-Susitna Borough residents to pay to preserve open space and other historical/environmental amenities associated with farming activities. Determinants of consumer behavior are addressed as well as total benefits and costs of various posited development scenarios. This information may be useful to policymakers assessing actions designed to purchase development rights from Matanuska-Susitna farmers

Laboratory investigation of diffraction and reflection of sonic booms by buildings

Laboratory investigation of diffraction and reflection of sonic booms by building

A study of the possible preventive effects of muscular exercises and intermittent venous occlusion on the cardiovascular deconditioning observed after 10 days bed recumbency - Experimental design

Experiment designed to study preventive effects of muscular exercises on intermittent venous occlusion on cardiovascular deconditioning observed after 10 days bed recumbenc

A Culturally Relevant Conceptual Unit Plan for the Engagement of African American Male Adolescents in the Rochester City School District

The implementation of the Common Core State Standards, coupled with the usage of pre-scripted lessons, has seemingly widened the achievement gap for African American male students. In a school district such as the Rochester City School District, in Rochester, NY, the graduation rates for this group of students is and has been consistently low. This project was created in an effort to introduce these specific students to an alternative in literacy instruction versus the traditional scripted lesson plans. The Conceptual Unit Plan within this project was constructed to engage adolescent African-American males within an English classroom, aid in their continued literacy learning and development and promote reading for enjoyment throughout the classroom, through the use of a Culturally Relevant Teaching pedagogy. The Conceptual Unit Plan designed, focuses on the theme of “Stereotypes”, and acknowledges and incorporates the lives and backgrounds of the inner-city students within the Greater Rochester region of New York State. While Common Core State Standards are the foundations of each lesson, all forms of text or media used in this unit plan focus on the history of racial tension in the area, life stories of minority men who have grown up in the area, and originate from authors or situations that may mirror the students’ cultural experiences or personal lives in order to give students a sense of ownership and identity in their learning process