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Finding Optimal Join Tree forMulti-Join Stream Queries in a Production System
26th IEEE International Conference on Distributed Computing Systems Workshops (ICDCSW'06), 2006Data Stream Management Systems (DSMS) handle a particular type of database applications that involve multiple continuous data streams with inputs arriving at highly variable and unpredictable rates. Since data rate fluctuates over time in this type of applications the appropriate join tree is crucial for maintaining high system throughput.
Heyong-Ah Choi, J.S. Gomes
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Air Products joins gasification venture
C&EN Global Enterprise, 2018Air Products will take a 55% stake in an $8 billion gasification and power joint venture now under construction in Saudi Arabia.
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Thixo‐Forging and Thixo‐Joining of an Integrated Product
steel research international, 2006In an effort to investigate thixo‐joining of aluminium alloy AISi7Mg with bolts of different metals, a series of experiments was carried out. An aluminium master part of high geometric complexity was thixo‐forged. Then thixo‐joining experiments were conducted. While the thixo‐forging of the aluminium master part being completed, bolts of brass, copper,
Reiner Kopp, Gerhard Hirt, Kaikun Wang
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A new way to compute the product and join of relations
Proceedings of the 1980 ACM SIGMOD international conference on Management of data - SIGMOD '80, 1980This paper presents a new method of computing the product or join of n relations in a paged-memory environment. The method, termed the nested-block method, is an attempt to take maximum advantage of available main-memory buffer space. The problem of finding an optimal allocation of main-memory buffer space for the nested-block method of scanning n ...
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Rapid bushy join-order optimization with Cartesian products
ACM SIGMOD Record, 1996Query optimizers often limit the search space for join orderings, for example by excluding Cartesian products in subplans or by restricting plan trees to left-deep vines. Such exclusions are widely assumed to reduce optimization effort while minimally affecting plan quality. However, we show that searching the complete space of plans is more affordable
MaierDavid, VanceBennet
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PRODUCTION CONTROL WITH ADVANCED DEMAND INFORMATION IN A JOIN-TYPE PRODUCTION LINE
IFAC Proceedings Volumes, 2006Abstract Production control in serial production lines such as CONWIP, base stock control and kanban control have been studied by many researchers. Production lines, however, usually have fork-type, join-type or network-type figures. Production control analysis in such lines has seldom been discussed.
Mikihiko Hiraiwa, Koichi Nakade
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Unretractive and S‐unretractive joins and lexicographic products of graphs
Journal of Graph Theory, 1987AbstractGraphs without proper endomorphisms are the subject of this article. It is shown that the join of two graphs has this property if and only if both summands have it, and that the lexicographic product of a complete graph or an odd circuit as first factors has this property if and only if the second factor has it.
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The productivity performance of Finnish and Norwegian dairy farms: the effect of joining/not joining the EU [PDF]
, 2011 Dairy production has long been the most important production line in Finnish and Norwegian agriculture. Prior to Finland joining the EU, farm structure as well as national agricultural policy was very similar in the two countries. In this paper, we explore development and differences in productivity and efficiency trends in the two countries before and
Marte Bjørnsen +2 more
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Production, forming and joining of polymers
1986MICHAEL F. ASHBY, DAVID R.H. JONES
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Joining Technologies for the Production of Hybrid Components
Lightweight Design worldwide, 2019Jan Ditter +3 more
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