Measurements of the roll-damping derivative (lp) of three wing planforms were made by the free-flight roll-balance technique over the Mach number range 0-7 to 1.4. The wings were all of RAE 102 section, 7" 5 per cent t/c and aspect ratio 2.83 but varied in sweep and taper ratio. The two wings of taper ratio 0.33 showed little loss of damping in the transonic region but the 50 deg delta wing suf...

The roll center is one of the key parameters for designing a suspension. Several driving characteristics are affected significantly by the migration of the roll center during the suspension’s motion. The strut/SLA (strut/short-long-arm) suspension, which is widely used in production cars, combines the space-saving characteristics of a MacPherson strut suspension with some of the preferred handl...

OBJECTIVE The aim of this study is to describe trends in the consumption of manufactured and roll-your-own cigarettes between 1991 and 2012 in Spain, and to project these trends up to 2020. METHODS We estimated daily consumption per capita during 1991-2012 using data on sales of manufactured cigarettes (20-packs) and rolling tobacco (kg) from the Tobacco Market Commission, and using data of t...

This study proposes DC-ROLL, a new approach to concurrency control in a distributed environment based on the Request Order Linked List (ROLL) [P91] and the Datacycle architecture [H+87]. DC-ROLL allows for more flexibility in levels of concurrency and avoids certain performance bottlenecks of the traditional two-phase locking. Unlike the original Datacycle architecture where the entire database...

In the current LIBOR transition to overnight–rate benchmarks, it is important understand theoretically and empirically what distinguishes actual term rates from overnight benchmarks or 'synthetic' based on such benchmarks. The well–known 'multi–curve' phenomenon of tenor basis spreads between structures associated with different payment frequencies provides key information this distinction. Thi...