Needed now: a world environment and development organization

Global environmental policy certainly could gain strength if the management of the United Nations Environment Programme (UNEP) or of the UN Commission on Sustainable Development (CSD) were made more efficient. However, such a minimalist strategy of efficiency improvement is no panacea: it can only be an element, not the core of a new global environmental policy. Therefore, instead of merely calling for improved efficiency and coordination, in this paper a proposal is made to establish a World Environment and Development Organization (WEDO) as a new specialized agency of the United Nations. At the very least, such an Organization should integrate UNEP, the CSD and the relevant Convention Secretariats (climate, biodiversity, desertification conventions); close cooperation with the Bretton Woods institutions - the World Bank, the International Monetary Fund (IMF), the World Trade Organization (WTO) - and the existing UN specialized agencies would need to be ensured. Also, ideas are being presented on the decision-making procedures, the participation of Non-Governmental Organizations (NGOs), and on the financing of such a World Environment and Development Organization. --

Heat Dissipation from a Finned Cylinder at Different Fin-Plane/Air-stream Angles

This report gives the results of an experimental determination of the temperature distribution in and the heat dissipation from a cylindrical finned surface for various fin-plane/air-stream angles. A steel cylinder 4.5 inches in diameter having slightly tapered fins of 0.30-inch pitch and 0.6 -inch width was equipped with an electrical heating unit furnishing 13 to 248 B.T.U. per hour per square inch of inside wall area. Air at speeds form 30 to 150 miles per hour was directed at seven different angles from 0 degrees to 90 degrees with respect to the fin planes. The tests show the best angle for cooling at all air speeds to be about 45 degrees. With the same temperature for the two conditions and with an air speed of 76 miles per hour, the heat input to the cylinder can be increased 50 percent at 45 degrees fin-plane/air-stream angle over that at 0 degrees

Heat transfer from cylinders having closely spaced fins

The heat-transfer coefficients have been determined for five steel cylinders having fins 1.22 inches wide and the spacing between the fins ranging from 0.022 to 0.131 inch. The cylinders were tested with and without baffles in a wind tunnel; they were also tested enclosed in jackets with the cooling air supplied by a blower. A maximum heat transfer was reached at a fin space of about 0.45 inch for the cylinders tested with each of the three methods of cooling investigated. The rise in temperature of the air passing between the fins and the change in flow pattern were found to be important factors limiting the heat transfer that may be obtained by decreasing the fin space. The use of baffles for directing the air around the cylinders with closely spaced fins proved very effective in increasing the over-all heat-transfer coefficient, provided that the spacing was not appreciably less than that for maximum heat transfer

Effect of spark-timing regularity on the knock of engine performance

Tests on a high-speed single-cylinder engine are described. The regularity of the spark timing was varied by driving the timer from different engine shafts. A simple and reasonably accurate method of determining the spark timing is described. The results show that irregular spark timing may cause large errors in tests of the knocking properties of fuels. For the engine tested, it was found that a change of one crankshaft degree in spark restart was equivalent to an 0.85 inch Hg change in allowable inlet pressure

Institutional reform of international environmental policy: advancing the debate on a world environment organization

"With the onset of the new millennium, the longstanding need for reform of the United Nations system has gained new momentum. Efficiency gains and better coordination are desirable, though not sufficient to bring about improvement in international relations. It could therefore make sense to look for institutional innovations that would upgrade the pressing tasks of environmental and development policy in the eyes of national governments, international organizations, and nongovernmental organizations, improve the institutional setting for the negotiation and implementation of new agreements and action programs, and strengthen the action capacity of the developing countries on these matters. The present paper points to and elaborates the need for a 'World Environment and Development Organization' within the United Nations system, and outlines the shape it might be given. The intention here is to carry the debate, which has made considerable headway, into the science of politics and development. How will the expert community in the field of foreign relations and development cooperation, based on their theories and empirical knowledge, respond to the proposal?" (author's abstract)"Mit dem Beginn des neuen Jahrhunderts hat die lang anstehende Reform des Systems der Vereinten Nationen neue Dringlichkeit erhalten. Effizienzgewinne und bessere Koordination sind wünschenswert, aber nicht hinreichend, insbesondere, wenn es um die Stärkung der Umweltkompetenz geht. In diesem Beitrag wird die Notwendigkeit der Etablierung einer Sonderorganisation für Umwelt und Entwicklung im System der Vereinten Nationen begründet und in ihren Umrissen vorgestellt. Der Vorschlag zielt insbesondere darauf, die Diskussion über notwendige institutionelle Innovationen auf der globalen Ebene zu stimulieren. Wie werden Experten für internationale Beziehungen und Entwicklungszusammenenarbeit auf diese Empfehlung reagieren?" (Autorenreferat

Mott transition and suppression of orbital fluctuations in orthorhombic 3d1d^{1} perovskites

Using $t_{2g}$ Wannier-functions, a low-energy Hamiltonian is derived for orthorhombic $3d^{1}$ transition-metal oxides. Electronic correlations are treated with a new implementation of dynamical mean-field theory for non-cubic systems. Good agreement with photoemission data is obtained. The interplay of correlation effects and cation covalency (GdFeO$_{3}$-type distortions) is found to suppress orbital fluctuations in LaTiO$_{3},$ and even more in YTiO$_{3}$, and to favor the transition to the insulating state.Comment: 4 pages, 3 figures; revised manuscrip

The Origin of Galactic Cosmic Rays

Motivated by recent measurements of the major components of the cosmic radiation around 10 TeV/nucleon and above, we discuss the phenomenology of a model in which there are two distinct kinds of cosmic ray accelerators in the galaxy. Comparison of the spectra of hydrogen and helium up to 100 TeV per nucleon suggests that these two elements do not have the same spectrum of magnetic rigidity over this entire region and that these two dominant elements therefore receive contributions from different sources.Comment: To be published in Physical Review D, 13 pages, with 3 figures, uuencode