Boosting as a kernel-based method

Machine Learning - Boosting combines weak (biased) learners to obtain effective learning algorithms for classification and prediction. In this paper, we show a connection between boosting and...     

Results of measuring the content of actinide, neodymium, and cesium isotopes and the burn-up in a sample of high-burn-up WWER-1000 fuel by destructive methods

Experimental data on the content of U, Pu, Np, Am, Cm, Nd, and Cs isotopes in a sample of WWER-1000 (1000 MW water-cooled water-moderated energy reactor) spent nuclear fuel with the burn-up of up to 70 GW day (t U)^?1 are reported. The data were mainly obtained by isotope dilution followed by mass-spectrometric determination. The burn-up was determined from the weight fractions of ¹⁴⁸Nd and ^134,137Cs in U. The data obtained can be used for the development of low-waste cost-saving technolofy for reprocessing highburn-up SNF and for the improvement of calculation methods and programs intended for calculation of the burn-up and nuclide composition of SNF from WWER reactors.     

Method for detecting and rectifying modular errors in devices for storing and transmitting information in measurement technology microprocessors

By way of discussion we consider a method for ensuring fail-free operation of discrete devices for storing and transmitting information, which utilizes linear codes for correcting modular errors. The method proposed makes it possible to extend the correction possibilities of a code, i.e., to rectify modular errors of any configuration under conditions when errors are detected in the remaining information modules. Translated from Izmeritel'naya Tekhnika, No. 11, pp. 11–15, November, 1999.     

Trauma and disaster as life disrupters: A model of computer-assisted psychotherapy applied to adolescent victims of the Chernobyl disaster.

This article reports on a computer-based, psychologist-assisted technology for addressing posttraumatic responses in Chernobyl-disaster-affected children. Mental health professionals who worked with this population reveal substantially distorted thoughts and feelings about the children's past, present, and future more than others of their age. Chernobyl-affected and evacuated children are aware that they can never return to their homes, illnesses may befall them in childhood, their parents may die sooner than normal, and that their environment is poisoned. The LifeLine psychotherapeutic software program (available from A. Kronik), which is based on the goal-and-causal theory of psychological time is described and suggestions are given for further school-based intervention and prevention services. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Ultrafast gas chromatography on single-wall carbon nanotube stationary phases in microfabricated channels

The key to rapid temperature programmed separations with gas chromatography are a fast, low-volume injection and a short microbore separation column with fast resistive heating. One of the major problems with the reduction of column dimensions for micro gas chromatography is the availability of a stationary phase that provides good separation performance. In this report, we present the first integration of single-wall carbon nanotubes (SWNTs) as a stationary phase into 100 mum x 100 mum square and 50-cm-long microfabricated channels. The small size of this column with integrated resistive heater and the robustness of the SWNT phase allow for fast temperature programming of up to 60 degrees C/s. A combination of the fast temperature programming and the narrow peak width of small-volume injections that can be obtained from a high-speed, dual-valve injection system allows for rapid separations of gas mixtures. We demonstrate highly reproducible separations of four-compound test mixtures on these columns in less than 1 s using fast temperature programming.     

Infrared zone-scanning system

Challenges encountered in designing an infrared viewing optical system that uses a small linear detector array based on a zone-scanning approach are discussed. Scanning is performed by a rotating refractive polygon prism with tilted facets, which, along with high-speed line scanning, makes the scanning gear as simple as possible. A method of calculation of a practical optical system to compensate for aberrations during prism rotation is described.     

Airborne digital holographic system for cloud particle measurements

An in-line holographic system for in situ detection of atmospheric cloud particles [Holographic Detector for Clouds (HOLODEC)] has been developed and flown on the National Center for Atmospheric Research C-130 research aircraft. Clear holograms are obtained in daylight conditions at typical aircraft speeds of 100 m s(-1). The instrument is fully digital and is interfaced to a control and data-acquisition system in the aircraft via optical fiber. It is operable at temperatures of less than -30 degrees C and at typical cloud humidities. Preliminary data from the experiment show its utility for studies of the three-dimensional spatial distribution of cloud particles and ice crystal shapes.     

Determination of the technological parameters of guniting

Conclusions The optimum guniting parameters with which it is possible to obtain strong and dense coatings with the minimum losses of compound with the springback were determined by multiple correlation analysis. The use of a regression equation makes it possible to calculate the guniting parameters for the production of coatings with previously specified properties.Translated from Ogneupory, No. 4, pp. 37–40, April, 1984.