1,749,755 research outputs found
Portable Color Camera
No full textAn engineer at the RCA Astro-Electronics Division, Princeton N.J., exits from a space simulation chamber carrying the smallest compatible color television camera ever developed. Designed by RCA for use in space exploration and related aerospace ground support activities
The Sign RCA Models: Comparing Predictive Accuracy of VaR Measures
No full textEvaluating Value at Risk (VaR) methods of predictive accuracy in an objective and effective framework is important for both efficient capital allocation and loss prediction. From this reasons, finding an adequate method of estimating and backtesting is crucial for both the regulators and the risk managers’. The Sign RCA models may be useful to obtain the accurate forecasts of VaR. In this research one briefly describes the Sign RCA models, the Value at Risk and backtesting. We compare the predictive accuracy of alternative VaR forecasts obtained from different models. Empirical example is mainly related to the PBG Capital Group shares on the Warsaw Stock Exchange.Family of Sign RCA Models, Value at Risk, backtesting, loss function.
RCA Secret
No full textStewarts Law RCA Secret is an exhibition and sale of original postcard-sized artworks, by internationally acclaimed artists plus up-and coming graduates from the Royal College of Art. It's a chance to get your hands on original works of art for a tiny price, whilst supporting bursaries for RCA art students at a formative time in their careers
RCA Secret 2014 showcased 2900 works by 1124 artists. The impressive lineup included generous contributions from Yinka Shonibare, Paula Rego, John Baldessari, David Bailey, Paula Rego, Frank Bowling, Grayson Perry, David Nash, Richard Long, Ryan Gander and Mimmo Paladino, as well as architect Zaha Hadid, fashion designers Christopher Bailey and Paul Smith, and musician and filmmaker Jarvis Cocker. Our own RCA Fine Art students also contributed their fresh and extraordinary works.
Ever wondered if you could spot a Paula Rego at 20 paces? How about a David Bailey? Each postcard in Stewarts Law RCA Secret is signed only on the back, so Collectors don't know the identity of the artists until they have made their purchases.
Proceeds to Royal College of Art Fine Art Student Award Fund
Application of the Family of Sign RCA Models for Obtaining the Selected Risk Measures
No full textAccurate modelling of risk is very important in finance. There are many alternative risk measures, however none of them is dominating. This paper proposes to use the family of Sign RCA models to obtain the Value-at-Risk (VaR) and Expected Shortfall (ES) measures. For models from the family of Sign RCA models and AR-GARCH model the one-step forecasts of VaR were calculated based on rolling estimates from the given model using different window sizes. To obtain the VaR and ES measures the filtered historical simulation was used in new version proposed by Christoffersen. The results were verified using backtesting and the loss function.Family of Sign RCA Models, risk measures, Value at Risk, Expected Shortfall.
Color TV for Space
No full textA new space color TV camera that can function under lunar lighting conditions ranging from dawn to high noon is displayed at RCA's Astro-Electronics Division, Princeton, N.J. RCA is under contract to NASA's Manned Spacecraft Center to build two of the cameras, which are immune to damage from bright light, even when pointed directly at the sun. The foil-like material on the side of the camera is thermal blanket designed to help protect the camera against extremes of heat and cold encountered in space
TIROS 9
No full textThis TIROS satellite - ninth in the successful TIROS series built by RCA for the National Aeronautics and Space Administration - is the first spacecraft to "roll" in orbit around world. Its two TV cameras are positioned radially opposite each other so that with each half-turn of the wheel, either camera faces toward the earth. Built by RCA's Astro-Electronics Division the TIROS wheel observes the entire earth and its cloud cover once a day. Abraham Schnapf, RCA's TIROS project manager, shows the spacecraft in its wheel position
Satellite Communications
No full textDate approximate based on research. An RCA-built experimental super high frequency (SHF) satellite ground station is used to communicate through the Department of Defense's TACSAT I satellite in orbit above the United States. Designed for use by field combat forces, the set is carried in a Jeep with its power supply mounted on a trailer. It was developed as part of the TACSATCOM (Tactical Communications Satellite) program, a joint effort of the Army, Navy, Air Force and Marine Corps. A family of five SHF sets are built by RCA's Defense Communications Systems Division, Camden, N.J., under direction of the Army's Satellite Communications Agency (SATCOM), which is responsible for the SHF ground equipment
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