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 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

A discussion of two general perturbations methods and of their application to artificial satellite theory

Two general perturbation methods evaluated and applied to artificial earth satellite theor

Comparison of Two Bulk Energy Approaches for the Phasefield Modeling of Two-variant Martensitic Laminate Microstructure

The unusual thermomechanical properties of shape memory alloys are closely connected to the formation and evolution of their microstructure. At lower temperatures, shape memory alloys typically consists of martensitic laminates with coherent twin boundaries. We propose a large strain phasefield model for the formation and dissipative evolution of such two-variant martensitic twinned laminate microstructures. Our model accounts for the coherence-dependence of the interface energy density and contains a Ginzburg-Landau type evolution equation. We introduce two conceptually different modeling approaches for the regularized bulk energy, i.e. external and internal mixing. We construct a suitable gradient-extended incremental variational framework for the proposed formulation and discretize it by use of finte elements. Finally, we demonstrate the modeling capabilities of our formulation by means of two-dimensional finite element simulations of laminate formation in two-phasic martensitic CuAlNi and compare the energetic modeling properties of the two proposed bulk energy approaches