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Keywords: optimization
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eBook Chapter
Series: ASTM Manuals
Publisher: ASTM International
Published: 2013
ISBN: 978-0-8031-7022-3
... Chapter 21 provides an overview of the mathematical methods used to solve the optimization problem for various design and operation issues in an oil refinery, including planning, scheduling, and process design and operation. Short-term scheduling is discussed from the viewpoints of complexity...
eBook Chapter
Series: ASTM Manuals
Publisher: ASTM International
Published: 2013
ISBN: 978-0-8031-7022-3
..., the use of a genetic algorithm in conjunction with the Monte Carlo simulation to obtain the economically optimal preventive maintenance frequency, the parts inventory policy (number and type of spare parts to keep in stock), and the labor allocation is presented. The performance of the algorithm...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2012
ISBN: 978-0-8031-7528-0
... Typically it is not recommended to use a single row spherical roller bearing in an application in which there are significant axial loads. The use of these bearings in a less than optimal customer application can be driven by the need for a high load capacity within a limited geometric envelope...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2002
ISBN-10: 0-8031-2893-2
ISBN: 978-0-8031-2893-4
... sequence are presently unavailable, although recent efforts [1] based on a finite element approach have yielded some positive results. In this paper we present a relatively efficient method based on an optimization approach. In our approach, the basic idea is to exploit the fact that the yarn structure...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2858-4
ISBN: 978-0-8031-2858-3
... with high modulus contrast. It also overcomes the frequency limitation found in the static estimation. pavement moduli dynamic backcalculation multifrequency backcalculation surface wave optimization Yumin Vincent Kang~ Use of Multifrequency Backcalculation for Determining Moduli of a Pavement...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1997
ISBN-10: 0-8031-2423-6
ISBN: 978-0-8031-2423-3
... the requirements of the specification This analysis is now being adopted for the manufacture of all current transport flasks. nuclear flak manufacture ASTM A350 LF5 improvement properties optimization Stephen Price t and Graham A Honeyman2 THE OPTIMIZATION OF MECtlANICAL PROPERTIES FOR NUCLEAR...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1997
ISBN-10: 0-8031-2423-6
ISBN: 978-0-8031-2423-3
... This paper addresses the development of a system which will enable the optimization of an entire processing sequence for a forged part. Typically such a sequence may involve several stages and alternative routes of manufacturing a given part. It is important that such a system be optimized...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1997
ISBN-10: 0-8031-2469-4
ISBN: 978-0-8031-2469-1
... ethoxylates hydrocarbon propellants water-hydrocarbon matrix cosolvents glycerol pentanol anionic emulsifiers optimization partial phase diagrams stability Kolazi S. Narayanan I, Milla Kaminsky, 2 Domingo Jon 3 and Robert M. Ianniello 4 WATER IN OIL MICROEMULSION AEROSOL SYSTEMS FOR INSECTICIDAL...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1996
ISBN-10: 0-8031-2021-4
ISBN: 978-0-8031-2021-1
... of existing subsurface modeling technology, subsurface flow/transport process investigations, subsurface conceptualization and uncertainty estimation, remedial alternative simulation and optimization, and technical assistance, demonstration, and verification. Version 1.0 of the GMS, which was made available...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1996
ISBN-10: 0-8031-2038-9
ISBN: 978-0-8031-2038-9
... and consumer responses, is analyzed by dummy variable regression analysis to reveal which specific elements drive each consumer-rated attribute, respectively. The results of the analysis yield a model that allows the developer to “optimize” the package concept in order to maximize acceptance...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1995
ISBN-10: 0-8031-1999-2
ISBN: 978-0-8031-1999-4
... been an limited but important activity at IKU for the last five years and one of the objectives for an ongoing Arctic program at IKU is to develop such new dispersants for use under Arctic conditions. Dispersant oil weathering optimization effectiveness testing Arctic conditions salinity...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1994
ISBN-10: 0-8031-1985-2
ISBN: 978-0-8031-1985-7
... nondamaging maneuvers are presented together with the development of the test actuator loads required to simulate the flight cases. The optimization procedure used to minimize the error in the applied load distribution, based on the sensitivity of stresses at critical locations to errors in the test loads...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1994
ISBN-10: 0-8031-1985-2
ISBN: 978-0-8031-1985-7
... inspection planning optimization gas turbine engine components test automation fracture (materials) testing methods data analysis Tom Lassen I Optimum Fracture Control Plan for Gas Turbine Engine Components REFERENCE: Lassen, T., "Optimum Fracture Control Plan for Gas Turbine Engine Components...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1993
ISBN-10: 0-8031-1439-7
ISBN: 978-0-8031-1439-5
... in a system comprised of: (A) an optimized solvent system in which certain C-1 to C-8 alkyl pyrrolidones were necessary components; (B) an optimized anionic and/or nonionic surfactant system; and (C) water @ ⩾ 85%(W/W). The system is uniquely thermodynamically stable, has low toxicity and is biodegradable...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1992
ISBN-10: 0-8031-1437-0
ISBN: 978-0-8031-1437-1
... include: (1) an optimization process which minimizes the numerical scatter in da/dN that arises from differentiation of (a,N) data, (2) a feature for combining data from many investigators while taking into account the varying amount of crack extension or life represented by each point, and (3) weighted...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1992
ISBN-10: 0-8031-1426-5
ISBN: 978-0-8031-1426-5
... include minimum weight, ease of fabrication, and ease of repeated assembly and disassembly of the joint. The latter would be desirable on a large-span aircraft for which hangar or transportation limitations would require repeated removal of outer wing sections. A FORTRAN program was developed to optimize...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1991
ISBN-10: 0-8031-1463-X
ISBN: 978-0-8031-1463-0
... processing parameters for hot extrusion are found to be 800°C and a mean strain rate of 0.1 to 1 s -1 . Zircaloy-2 strain rate sensitivity processing map dynamic materials model dynamic recovery dynamic recrystallization flow instability extrusion validation optimization hot workability J...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1991
ISBN-10: 0-8031-1421-4
ISBN: 978-0-8031-1421-0
..., and organization with regard to PMS. It concludes with an insight to the future of PMS in FHWA and SHAs. Pavement management systems (PMS) optimization pavement management coordinating group (PMCG) and AASHTO Guidelines Mr. William A. Nostrand, Chief, Pavement Management Branch, FHWA The History...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1991
ISBN-10: 0-8031-1421-4
ISBN: 978-0-8031-1421-0
... provides optimal actions for candidate pavements, long range budget allocations, present assessment and future forecasting of the network conditions and rehabilitation need. Various modules and submodules are manipulated to achieve optimal solutions over a six year planning period by maximizing pavement...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1991
ISBN-10: 0-8031-1421-4
ISBN: 978-0-8031-1421-0
... Two different Pavement Management Systems (PMS) are discussed in this paper. One developed for the Ohio Department of Transportation (ODOT) has deterministic degradation models based on historical data. The ODOT system is optimized using a 0–1 optimization. This is solved using linear...