Miniaturized pointing mount performance analysis

Analytical analysis and computer simulation results of the miniaturized pointing mount as an instrument pointing system are presented. Miniaturized mount performance results include inertial pointing, slewing, tracking, and rastering. Typical instrument characteristics are used as well as some parameter variations of instrument and miniaturized pointing mount characteristics

Experimental pressure distributions for a family of blunt bodies at Mach numbers from 2.49 to 4.63 and angles of attack from 0 deg to 15 deg

Pressure distributions for blunt body wind tunnel models at supersonic speeds and angles of attack from 0 to 15 degree

A Note on the Publication Dates of Christopher Levett’s “A Voyage into New England

The author discusses the reasons that Christopher Levett\u27s Voyage to New England was likely published in 1624, rather than 1628 as previously believed

Ground vibration near explosions

One would expect that, since seismic waves from explosions are the basis of a whole industry (seismic surveying), their nature would have been throughly investigated and described. However, the exploration geophysicist is not primarily interested in the nature of the seismic pulses, but in their velocities and the paths they travel to his recording instruments. It is common practice in studying seismic exploration records to assume that only compressional pulses are clearly recorded, though occasionally the presence of some transverse wave energy is postulated to explain otherwise incomprehensible observations. Other types of wave motion are treated as part of the background noise, and wherever possible are excluded from the recorded spectrum by the use of appropriate filters in the amplifiers

Financing -- A Major Problem of Small Business

It is imperative that a definitive study of small business include a discourse on financing.\u27 Generally, the first consideration of a prospective entrepreneur is the availability of sufficient capital, borrowed or paid-in, to support the activity of his business. Of paramount importance, however, to those who attempt to assess the prospects of survival and future growth of a company is the recognition that all considerations are secondary to the human factor. The careful banker, while requiring collateral to secure a loan, depends on his estimation of the applicant\u27s personality traits. While the adequacy of capital contributes to the success of a business, without alert, imaginative,and competent management, the chances for survival are slight. In essence the problems of financing a small business are problems of personalities, mutual confidence, and capacity; they are not merely problems of percentages, figures or working capital