[en] Title 44 US Code, ''Public Printing and Documents,'' regulations issued by the General Service Administration (GSA) in 41 CFR Chapter 101, Subchapter B, ''Management and Use of Information and Records,'' and regulations issued by the National Archives and Records Administration (NARA) in 36 CFR Chapter 12, Subchapter B, ''Records Management,'' require each agency to prepare and issue a comprehensive records disposition schedule that contains the NARA approved records disposition schedules for records unique to the agency and contains the NARA's General Records Schedules for records common to several or all agencies. The approved records disposition schedules specify the appropriate duration of retention and the final disposition for records created or maintained by the NRC. NUREG-0910, Rev. 3, contains ''NRC's Comprehensive Records Disposition Schedule,'' and the original authorized approved citation numbers issued by NARA. Rev. 3 incorporates NARA approved changes and additions to the NRC schedules that have been implemented since the last revision dated March, 1992, reflects recent organizational changes implemented at the NRC, and includes the latest version of NARA's General Records Schedule (dated August 1995)

[en] Development of a database of multispectral satellite data from the Russian satellite RESURS-F, radar data from the Japanese satellite JERS-1, airborne radar data with different wavelengths, and aerial photographic data acquired since 1974 of the Timan-Pechorian petroleum province was discussed. The database also contains the data layers dealing with different aspects of the natural environment. It is planned to supplement the data with data from the RADARSAT Project. Rapture of a pipeline in October 1994 and other field and pipeline accidents have created significant changes in the landscape, hence the database is a useful tool for mapping these changes and to study the effects of oil pollution on the natural environment

[en] Short communication

[en] Many photon and other radiation 2D detection systems introduce spatial distortions into recorded data. As long as these distortions are to some degree repeatable it is possible to use a grid of holes of known positions to illuminate the detector and calibrate the distortion. Knowledge of this distortion can be used to correct subsequent images. Aspects of calibration grid design are discussed with the aim of achieving optimum results. Cross-correlation with known hole functions is proposed as a method for estimating grid peak centres giving optimum accuracy and efficiency. Strategies to search efficiently complete grids are also presented. Where a physical model of the distortion process is lacking or inadequate, bi-cubic splines are proposed as suitable interpolating functions for defining approximate spatial distortion functions. Bi-cubic splines allow both adequate flexibility to describe arbitrary distortions and, most importantly, to allow efficient calculation for the correction of data. Calibration and correction algorithms have been developed and applied to 2D detector systems. Sample results are presented. ((orig.))

[en] A new procedure for unfolding the true distribution from experimental data distorted by a detector is proposed. For the given detector a result can be found by the least squares method, hence without bias and involving minimal statistical errors. Stability of the result is achieved at the expense of its information content and/or using additional information on the shape of the distributions to be measured. The method may be applied for detectors with linear or nonlinear distortions. (orig.)

[en] In 1989 the PRIS database was made available on-line for direct access via the international public data networks or public switched telephone system. This service, called PRIS ON-LINE, was kept operating free of charge. Currently, 60 users in 25 Member States and 3 international organizations (WANO, WISE and OECD) have on-line access. In parallel with the on-line access system, the Agency has offered MICROPRIS to the Member States, free of charge, since January 1991. This is a personal computer (PC) version of data available on diskette in a form readily accessible by standard, commercially available PC packages. (orig.)

No abstract available

No abstract available

[en] In the evaluation of complex information systems, it is useful to work within a generalized economic framework. This framework is based on consideration of four evaluation levels, including those associated with the overall system, system functions, products and services, and activities. Measures of cost and output can be defined at each level, with output measures related to volume of activity, performance, effectiveness, and benefit. The description of this framework includes definitions of the terminology used. Examples of the application of the framework to specific information system evaluations are also given. 4 figures

No abstract available