Distribution of elevations on a cratered planetary surface

Distribution of elevations on a cratered planetary surfac

Random independent splitting model for the mass spectrum of protostars and interstellar clouds

Mathematical model for mass spectra of protostars and interstellar cloud

Covariance function of elevations on a cratered planetary surface. Part 2 - Crater rim and ejecta blanket contribution

Covariance function of elevations on cratered planetary surfac

Sovereign Debt Restructuring: New Articles, New Contracts--Or No Change?

It was at the National Economists' Club in November 2001 that Anne Krueger, first deputy managing director of the International Monetary Fund, threw down the gauntlet. "There is," she said, "a gaping hole [in the international financial architecture]-- we lack incentives to help countries with unsustainable debts resolve them promptly and in an orderly way. At present the only available mechanism requires the international community to bail out the private creditors. It is high time this hole was filled."

Rethinking one`s own culture

African people reflecting on their own situation will frequently find themselves in a dilemma to identify with western and traditional values. A case study of the Burji (Ethiopia and Kenya) examplifies this. First a description is given of the Burji actively dealing with their problems, trying among other things to keep Burjiness alive. Then in presenting a semiotic model it is shown how the phenomenon of their changing group identity (which is not grasped by theories of ethnic group or ethnicity) can be analyzed. The model presented may be useful for analyzing similar cases in the Third World

Laser extensometer

A drift compensated and intensity averaged extensometer for measuring the diameter or other properties of a substantially cylindrical sample based upon the shadow of the sample is described. A beam of laser light is shaped to provide a beam with a uniform intensity along an axis normal to the sample. After passing the sample, the portion of the beam not striking said sample is divided by a beam splitter into a reference signal and a measurement signal. Both of these beams are then chopped by a light chopper to fall upon two photodiode detectors. The resulting ac currents are rectified and then divided into one another, with the final output being proportional to the size of the sample shadow

An approach to market analysis for lighter than air transportation of freight

An approach is presented to marketing analysis for lighter than air vehicles in a commercial freight market. After a discussion of key characteristics of supply and demand factors, a three-phase approach to marketing analysis is described. The existing transportation systems are quantitatively defined and possible roles for lighter than air vehicles within this framework are postulated. The marketing analysis views the situation from the perspective of both the shipper and the carrier. A demand for freight service is assumed and the resulting supply characteristics are determined. Then, these supply characteristics are used to establish the demand for competing modes. The process is then iterated to arrive at the market solution