16 research outputs found

    Freight Efficiency Strategies: Information Technology

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    This White Paper presents recommendations for using information technology solutions to increase the efficiency of California\u2019s multi modal freight system. These recommendations resulted from a consensus based process by working group committee members. The authors address two problems: information problems in the goods movement supply chain, and information problems in statewide trucking

    Seismic Forces in Ancillary Components Supported on Piers and Wharves

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    This paper presents a simple procedure to estimate seismic forces in ancillary components (secondary systems) supported on marine structures such as piers, wharves, and marine oil terminals (primary systems). Since many such marine structures can be idealized as single-degree-of-freedom (SDOF) systems, this study uses a simple linear-elastic model with two DOF, one representing the marine structure and the other representing the ancillary component. This study shows that acceleration at the base of the secondary system is approximately equal to spectral acceleration at the fundamental period of the primary system. It also proposes a formula, which is an improvement over current ASCE 7-10 recommendations, to estimate acceleration amplification in the secondary system due to its flexibility when mass and period ratios of the secondary and primary systems are known. The procedure in this paper is strictly applicable to marine structures for which primarily a single mode contributes to seismic response

    Long Beach Harbor numerical analysis of harbor oscillations :

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    "September 1976.""Prepared for Port of Long Beach, Long Beach, California."Includes bibliographical references.Mode of access: Internet

    EXPORT-LINKED EMPLOYMENT IN SOUTHERN CALIFORNIA

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    "This paper examines relevant data sources and develops a methodology based on available data in order to estimate the level of employment for a region that is linked to exports of goods and services. The methodology allows for the estimation of direct and indirect export-related employment at the 2-digit SIC industry level. In addition, the paper describes how the direction of regional trade can be estimated, and how regional employment linked to exports to major trading partners can be calculated. This methodology is then applied using data from the Southern California region. Tables with estimates of total regional export-linked employment (by industry) and the regional employment associated with exports to each of the region's top 10 export trading partners are included. The usefulness of this type of database with regard to economic policy is discussed, as well as regional economic implications of the current economic crisis in Asia." ("JEL" F16, R15, R58, R23) Copyright 1999 Western Economic Association International.
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