Feasibility study of an Integrated Program for Aerospace vehicle Design (IPAD) Volume 7: IPAD benefits and impact

The potential benefits, impact and spinoff of IPAD technology are described. The benefits are projected from a flowtime and labor cost analysis of the design process and a study of the flowtime and labor cost savings being experienced with existing integrated systems. Benefits in terms of designer productivity, company effectiveness, and IPAD as a national resource are developed. A description is given of the potential impact of information handling as an IPAD technology, upon task and organization structure and people who use IPAD. Spinoff of IPAD technology to nonaerospace industries is discussed. The results of a personal survey made of aerospace, nonaerospace, government and university sources are given

The political economy of a Soviet military R&D failure : steam power for aviation, 1932 to 1939

By studying a Soviet R&D failure, the prewar attempt to create a new aeroengine technology based on the steam turbine, we find out more about the motivations, strategies, and payoffs of principals and agents in the Soviet command economy. Alternative approaches to the evaluation of R&D failure are outlined. New archival documentation shows the scale and scope of the Soviet R&D effort in this field. The allocation of R&D resources resulted from agents’ horizontal interactions within a vertical command hierarchy. Project funding was determined in a context of biased information, adverse selection, and agents’ rent seeking. Funding was rationed across projects and through time. Budget constraints on individual projects were softened in the presence of sunk costs, but were hardened periodically. There is no evidence that rents were intentionally distributed through the Soviet military R&D system to win trust or reward loyalty; the termination of aviation steam power R&D in 1939 despite the sunk costs they represented was timely

Digging in the dark: the underground war on the Western Front in WWI

Throughout the First World War, with the trenches largely static, the combatants tried to break the deadlock by tunnelling under one another’s trenches. The Tunnelling Companies of the British Royal Engineers were engaged in a bitter struggle against German Pioneers that left both sides with heavy casualties. A project to determine the location of one particular act of heroism in that underground war has resulted in the erection of a monument to the Tunnellers at Givenchy-lès-la-Bassée in northern France

Meat: A Novel

An English-language translation of a Russian novel that appeared in the Soviet thick journal Novyi Mir in three installments during February, March, and April of 1936

Regulation of the River Huang: a study of the Chinese concept of river basin development

SIGLELD:D46422/83 / BLDSC - British Library Document Supply CentreGBUnited Kingdo

Signal Flow Graph Approach to Efficient DST I-IV Algorithms

In this paper, fast and efficient discrete sine transformation (DST) algorithms are presented based on the factorization of sparse, scaled orthogonal, rotation, rotation-reflection, and butterfly matrices. These algorithms are completely recursive and solely based on DST I-IV. The presented algorithms have low arithmetic cost compared to the known fast DST algorithms. Furthermore, the language of signal flow graph representation of digital structures is used to describe these efficient and recursive DST algorithms having $(n-1)$ points signal flow graph for DST-I and $n$ points signal flow graphs for DST II-IV