From Achievements to New Possibilities

It’s the year of Jubilation.The ACL has been in existence for fifty years now. The first meeting of the Christian Librarians’ Fellowship was held at Columbia Bible College (now Columbia International University) in 1956. There were only five librarians in attendance.The organization has come a long way from its humble beginnings to its present permanent headquarters in Cedarville, Ohio. I wrote an article on the 25th anniversary back in 1982. It is time to reflect on ACL’s past successes and achievements since 1982 and look to what possibilities the future holds

Analytical study of laser supported combustion waves in hydrogen

A one-dimensional energy equation, with constant pressure and area, was used to model the LSC wave. This equation balances convection, conduction, laser energy absorption, radiation energy loss and radiation energy transport. Solutions of this energy equation were obtained to give profiles of temperature and other properties, as well as the relation between laser intensity and mass flux through the wave. The flow through the LSC wave was then conducted through a variable pressure, variable area streamtube to accelerate it to high speed, with the propulsion application in mind. A numerical method for coupling the LSC wave model to the streamtube flow was developed, and a sample calculation was performed. The result shows that 42% of the laser power has been radiated away by the time the gas reaches the throat. It was concluded that in the radially confined flows of interest for propulsion applications, transverse velocities would be less important than in the unconfined flows where air experiments have been conducted

Large transport landing characteristics as simulated in flight and on the ground

Comparison of theoretical and simulated low speed landing characteristics for large transport aircraft

Britain\u27s Balance of Payments Problem and the Sterling Devaluation

We shall try to understand the dimensions of the British balance of payments problem, why devaluation became necessary, and some of the implications of the sterling crisis for Britain and other countries

Proposal for a study of computer mapping of terrain using multispectral data from ERTS-A for the Yellowstone National Park test site

The author has identified the following significant results. A terrain map of Yellowstone National Park showed plant community types and other classes of ground cover in what is basically a wild land. The map comprised 12 classes, six of which were mapped with accuracies of 70 to 95%. The remaining six classes had spectral reflectances that overlapped appreciably, and hence, those were mapped less accurately. Techniques were devised for quantitatively comparing the recognition map of the park with control data acquired from ground inspection and from analysis of sidelooking radar images, a thermal IR mosaic, and IR aerial photos of several scales. Quantitative analyses were made in ten 40 sq km test areas. Comparison mechanics were performed by computer with the final results displayed on line printer output. Forested areas were mapped by computer using ERTS data for less than 1/4 the cost of the conventional forest mapping technique for topographic base maps

Inflight and ground-based simulation of handling qualities of very large airplanes in landing approach

Inflight and ground based simulation of Boeing 367-80 variable stability aircraft handling qualities during landing approac