Sales, revenues and income of privately-owned class A and class B electric utilities in the United States

Mode of access: Internet.

Environmental research and development : hearing before the Subcommittee on Toxic Substances and Environmental Oversight of the Committee on Environment and Public Works, United States Senate, Ninety-eighth Congress, first session, June 14, 1983.

Pt. 1 not named as such.

Gazetteer of Iran : names approved by the United States Board on Geographic Names /

Item 617

Gazetteer of Turkey : names approved by the United States Board on Geographic Names /

Mode of access: Internet.

EVALUATION OF NON-STATIONARITY IN ANNUAL MAXIMUM FLOOD SERIES OF MODERATELY IMPAIRED WATERSHEDS IN THE UPPER MIDWEST AND NORTHEASTERN UNITED STATES

United States federal agencies assess flood risk using Bulletin 17B procedures which assume annual maximum flood series are stationary. This represents a significant limitation of current flood frequency models as the flood distribution is thereby assumed to be unaffected by trends or periodicity of atmospheric/climatic variables and/or anthropogenic activities. The validity of this assumption is at the core of this thesis, which aims to improve understanding of the forms and potential causes of non-stationarity in flood series for moderately impaired watersheds in the Upper Midwest and Northeastern US. Prior studies investigated non-stationarity in flood series for unimpaired watersheds; however, as the majority of streams are located in areas of increasing human activity, relative and coupled impacts of natural and anthropogenic factors need to be considered such that non-stationary flood frequency models can be developed for flood risk forecasting over relevant planning horizons for large scale water resources planning and management.

Cryptanalysis of SIMON Variants with Connections

SIMON is a family of 10 lightweight block ciphers published by Beaulieu et al. from the United States National Security Agency (NSA). A cipher in this family with K -bit key and N -bit block is called SIMON N/K . We present several linear characteristics for reduced-round SIMON32/64 that can be used for a key-recovery attack and extend them further to attack other variants of SIMON. Moreover, we provide results of key recovery analysis using several impossible differential characteristics starting from 14 out of 32 rounds for SIMON32/64 to 22 out of 72 rounds for SIMON128/256. In some cases the presented observations do not directly yield an attack, but provide a basis for further analysis for the specific SIMON variant. Finally, we exploit a connection between linear and differential characteristics for SIMON to construct linear characteristics for different variants of reduced-round SIMON. Our attacks extend to all variants of SIMON covering more rounds compared to any known results using linear cryptanalysis. We present a key recovery attack against SIMON128/256 which covers 35 out of 72 rounds with data complexity 2123 . We have implemented our attacks for small scale variants of SIMON and our experiments confirm the theoretical bias presented in this work.

IFR altitude usage peak day 1960 /

Cover title.

Administration buildings for general aviation airports.

Mode of access: Internet.

Model airport zoning ordinance.

Caption title.

Airport drainage.

"This publication supersedes 'Airport drainage,' dated November 1956."

Men's work shirts, case study data on productivity and factory performance.

"Glossary": p. 49-50.

Power laundries, case study data on productivity and factory performance.

"Glossary": p. 61-64.

Final country reports from the seven European country groups participating in the 1952 project for young farm leaders and technicians.

With cooperation of U. S. Department of Agriculture and land-grant colleges.

FAA course for radiological monitors.

Cover title.