6,488 research outputs found
Evaluation of meteorological airborne Doppler radar
This paper will discuss the capabilities of airborne Doppler radar for atmospheric sciences research. The evaluation is based on airborne and ground based Doppler radar observations of convective storms. The capability of airborne Doppler radar to measure horizontal and vertical air motions is evaluated. Airborne Doppler radar is shown to be a viable tool for atmospheric sciences research
Observation of the Cosmic Ray Electron- Positron Ratio from 100 Mev to 3 Bev in 1964
Balloon flight data on cosmic ray electron- positron ratio from 100 MeV to 3 Be
A Survey of the Commercial Fisheries on the Mainstrem Reservoirs of the Upper Missouri River System
A survey of the commercial fisheries on the mainstem reservoirs of the Missouri River in Montana, North Dakota, and South Dakota was made in 1966* The objective of the study was to obtain basic information of use in the management of commercial fisheries that are developing in these waters and to identify biological problems significant to these new fisheries.
Each commercial fishery is described as to types and specification of gear, species caught, seasons of fishing, catch per unit of effort, licensing by the states, habitat of species, indications of depletion, and special problems affecting the development of the commercial fisheries. The preparation of fish for market, holding facilities, prices and records kept are briefly discussed.
There is a paucity of basic scientific information in this region that can be immediately drawn upon and used in the management of the developing fisheries. There are no indications of depletion recognized. The exploitation of commercial fish populations can apparently be increased many-fold. Current problems in the expansion of the fisheries appear to be in the economics of operation and in marketing rather than in the absolute abundance of potentially eoramercial species
Exploring scholarly data with Rexplore.
Despite the large number and variety of tools and services available today for exploring scholarly data, current support is still very limited in the context of sensemaking tasks, which go beyond standard search and ranking of authors and publications, and focus instead on i) understanding the dynamics of research areas, ii) relating authors ‘semantically’ (e.g., in terms of common interests or shared academic trajectories), or iii) performing fine-grained academic expert search along multiple dimensions. To address this gap we have developed a novel tool, Rexplore, which integrates statistical analysis, semantic technologies, and visual analytics to provide effective support for exploring and making sense of scholarly data. Here, we describe the main innovative elements of the tool and we present the results from a task-centric empirical evaluation, which shows that Rexplore is highly effective at providing support for the aforementioned sensemaking tasks. In addition, these results are robust both with respect to the background of the users (i.e., expert analysts vs. ‘ordinary’ users) and also with respect to whether the tasks are selected by the evaluators or proposed by the users themselves
The Fighting\u27s Done, Now Pay Me: Investment Treaties, War and State Liability
Where major conflict erupts, major state liability follows. Sri Lanka, Zaire, Libya, and Syria have all found themselves subject to extensive liability to investors under bilateral investment treaties for harms incurred in the midst of armed conflicts raging within their borders. This Note argues that war-loss clauses, present in nearly every bilateral investment treaty, should be interpreted to create a lex specialis regime limiting investor compensation following armed conflicts. Arbitral tribunals, however, have consistently refused to apply war-loss clauses in this manner. This has lead to an over-extension of state liability to foreign investors in the wake of armed conflict. This liability has the potential to create a host of problems for states recovering from armed conflict, and this Note proposes three solutions. First, it outlines how war-loss clauses can plausibly be interpreted under the Vienna Convention on the Law of Treaties to create a special regime limiting states\u27 liability to investors for war losses. Second, it proposes that more explicit war-loss provisions be added to future bilateral investment treaties. Last, it outlines the contours of a multilateral instrument that could supersede the application of bilateral investment treaties in times of armed conflict
The Venus Balloon Project
On June 11 and 15, 1985, two instrumental balloons were released from the Soviet VEGA 1 and VEGA 2 spacecraft and deployed in the atmosphere of Venus. The VEGA probes flew by the planet on their way to a rendezvous with comet Halley in March 1986. Drifting with the wind at altitudes of 54 km, the balloons traveled one-third of the way around the planet during their 46-hour lifetimes. Sensors on-board the gondolas made periodic measurements of pressure, temperature, vertical wind velocity, cloud particle density, ambient light level, and frequency of lightning. The data were transmitted to Earth and received at the Deep Space Network (DSN) 64-m stations and at several large antennas in the USSR. Approximately 95 percent of the telemetry data were successfully decoded at the DSN complexes and in the Soviet Union, and were provided to the international science team for analysis. Very Long Baseline Interferometry (VLBI) data were acquired by 20 radio observatories around the world for the purpose of monitoring the Venus winds. The DSN 64-m subnet was part of a 15-station VLBI network organized by the Centre National d'Etudes Spatiales (CNES) of France. In addition, five antennas of the Soviet network participated. VLBI data from the CNES network are currently being processed at the Jet Propulsion Laboratory
Magnetic Fields and Infall Motions in NGC 1333 IRAS 4
We present single-dish 350 micron dust continuum polarimetry as well as HCN
and HCO+ J=4-3 rotational emission spectra obtained on NGC 1333 IRAS 4. The
polarimetry indicates a uniform field morphology over a 20" radius from the
peak continuum flux of IRAS 4A, in agreement with models of magnetically
supported cloud collapse. The field morphology around IRAS 4B appears to be
quite distinct however, with indications of depolarization observed towards the
peak flux of this source. Inverse P-Cygni profiles are observed in the HCN
J=4-3 line spectra towards IRAS 4A, providing a clear indication of infall gas
motions. Taken together, the evidence gathered here appears to support the
scenario that IRAS 4A is a cloud core in a critical state of support against
gravitational collapse.Comment: 23 pages, 6 figures, 2 table
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