15,679 research outputs found
Toward a new social contract theory in organization science
Includes bibliographic references (p. 23-29)
A simplified method for determining convective heat-transfer coefficients
Convective heat transfer coefficients are determined by measuring temperatures of hot and cold fluids separated by wall, and temperature of wall at single point. Method is applicable to heat exchangers and rocket engines
Jet exhaust noise suppressor
Noise suppression for a jet engine exhaust is provided by an annular divergent body attached to an exhaust nozzle. The smallest diameter of the divergent body is larger than the diameter of the exhaust nozzle exit to form an annular step which produces a shock wave in the exhaust as it passes the step. An annular shroud is disposed around the divergent body and causes outside air to pass through voids in the divergent body to mix with the jet exhaust gas. The divergent body includes a plurality of channels with separators between the channels
DEVELOPING COUNTRY CONCERNS AND MULTILATERAL TRADE NEGOTIATIONS
International Relations/Trade,
Globalization, Natural Resources and Foreign Investment: A View from the Resource-Rich Tropics
This article uses data drawn from Southeast Asia and West Africa to help explain the geographical distribution of foreign investment. Why during late nineteenth- and early twentieth-century globalization did the attributes of abundant natural resources, mass migration and export expansion that attracted large foreign investment to the New World not similarly draw capital to the tropics? I argue that in a number of tropical countries, rich natural resources and cheap labour available through mass migration effectively substituted for foreign borrowing. At the same time, the dominant institution of colonialism throughout Southeast Asia and West Africa limited borrowing from abroad and helped to ensure that even for these resource-rich countries capital flows remained slight.19th century UK foreign investment; tropical growth; globalization; vent-for-surplus; natural resources; institutions; colonialism
Cluster Formation in Contracting Molecular Clouds
We explore, through a simplified, semi-analytic model, the formation of dense
clusters containing massive stars. The parent cloud spawning the cluster is
represented as an isothermal sphere. This sphere is in near force balance
between self-gravity and turbulent pressure. Self-gravity, mediated by
turbulent dissipation, drives slow contraction of the cloud, eventually leading
to a sharp central spike in density and the onset of dynamical instability. We
suggest that, in a real cloud, this transition marks the late and rapid
production of massive stars.
We also offer an empirical prescription, akin to the Schmidt law, for
low-mass star formation in our contracting cloud. Applying this prescription to
the Orion Nebula Cluster, we are able to reproduce the accelerating star
formation previously inferred from the distribution of member stars in the HR
diagram. The cloud turns about 10 percent of its mass into low-mass stars
before becoming dynamically unstable. Over a cloud free-fall time, this figure
drops to 1 percent, consistent with the overall star formation efficiency of
molecular clouds in the Galaxy.Comment: To appear in ApJ Vol. 667, September 2
Globalization and labor market integration in late nineteenth and early twentieth century Asia
This chapter uses new data sets to analyze labor market integration between 1882 and 1936 in an area of Asia stretching from South India to Southeastern China and encompassing the three Southeast Asian countries of Burma, Malaya, and Thailand. We find that by the late nineteenth century, globalization, of which a principal feature was the mass migration of Indians and Chinese to Southeast Asia, gave rise to both an integrated Asian labor market and a period of real wage convergence. Integration did not, however, extend beyond Asia to include core industrial countries. Asian and core areas, in contrast to globally integrated commodity markets, showed divergent trends in unskilled real wages
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