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View discovery in OLAP databases through statistical combinatorial optimization

Description: OnLine Analytical Processing (OLAP) is a relational database technology providing users with rapid access to summary, aggregated views of a single large database, and is widely recognized for knowledge representation and discovery in high-dimensional relational databases. OLAP technologies provide intuitive and graphical access to the massively complex set of possible summary views available in large relational (SQL) structured data repositories. The capability of OLAP database software systems to handle data complexity comes at a high price for analysts, presenting them a combinatorially vast space of views of a relational database. We respond to the need to deploy technologies sufficient to allow users to guide themselves to areas of local structure by casting the space of 'views' of an OLAP database as a combinatorial object of all projections and subsets, and 'view discovery' as an search process over that lattice. We equip the view lattice with statistical information theoretical measures sufficient to support a combinatorial optimization process. We outline 'hop-chaining' as a particular view discovery algorithm over this object, wherein users are guided across a permutation of the dimensions by searching for successive two-dimensional views, pushing seen dimensions into an increasingly large background filter in a 'spiraling' search process. We illustrate this work in the context of data cubes recording summary statistics for radiation portal monitors at US ports.
Date: January 1, 2009
Creator: Hengartner, Nick W; Burke, John; Critchlow, Terence; Joslyn, Cliff & Hogan, Emilie
Partner: UNT Libraries Government Documents Department

ITER Generic Diagnostic Upper Port Plug Nuclear Heating and Personnel Dose Rate Assesment Neutronics Analysis using the ATTILA Discrete Ordinates Code

Description: Neutronics analysis to find nuclear heating rates and personnel dose rates were conducted in support of the integration of diagnostics in to the ITER Upper Port Plugs. Simplified shielding models of the Visible-Infrared diagnostic and of the ECH heating system were incorporated in to the ITER global CAD model. Results for these systems are representative of typical designs with maximum shielding and a small aperture (Vis-IR) and minimal shielding with a large aperture (ECH). The neutronics discrete-ordinates code ATTILA® and SEVERIAN® (the ATTILA parallel processing version) was used. Material properties and the 500 MW D-T volume source were taken from the ITER “Brand Model” MCNP benchmark model. A biased quadrature set equivelant to Sn=32 and a scattering degree of Pn=3 were used along with a 46-neutron and 21-gamma FENDL energy subgrouping. Total nuclear heating (neutron plug gamma heating) in the upper port plugs ranged between 380 and 350 kW for the Vis-IR and ECH cases. The ECH or Large Aperture model exhibited lower total heating but much higher peak volumetric heating on the upper port plug structure. Personnel dose rates are calculated in a three step process involving a neutron-only transport calculation, the generation of activation volume sources at pre-defined time steps and finally gamma transport analyses are run for selected time steps. ANSI-ANS 6.1.1 1977 Flux-to-Dose conversion factors were used. Dose rates were evaluated for 1 full year of 500 MW DT operation which is comprised of 3000 1800-second pulses. After one year the machine is shut down for maintenance and personnel are permitted to access the diagnostic interspace after 2-weeks if dose rates are below 100 μSv/hr. Dose rates in the Visible-IR diagnostic model after one day of shutdown were 130 μSv/hr but fell below the limit to 90 μSv/hr 2-weeks later. The Large Aperture or ECH style ...
Date: May 29, 2009
Creator: Yousef, Russell Feder and Mahmoud Z.
Partner: UNT Libraries Government Documents Department

Harbor Maintenance Finance and Funding

Description: This report discusses the harbor maintenance trust fund (HMTF), which receives revenue from taxes on waterborne cargo and on cruise ship passengers. The future of the HMTF is a major issue in consideration of the Water Resources Development Act (WRDA), which is now pending in Congress.
Date: September 11, 2013
Creator: Frittelli, John
Partner: UNT Libraries Government Documents Department

The Exon-Florio National Security Test for Foreign Investment

Description: The proposed acquisition of major operations in six major U.S. ports by Dubai Ports World and of Unocal by the China National Offshore Oil Corporation sparked intense concerns among some Members of Congress and the public and has reignited the debate over what role foreign acquisitions play in U.S. national security. The United States actively promotes internationally the national treatment of foreign firms. Several Members of Congress have introduced various measures during the 2nd Session of the 109th Congress that can be grouped into four major areas: those that deal specifically with the proposed Dubai Ports World acquisition; those that focus more generally on foreign ownership of U.S. ports; those that would amend the CFIUS process; and those that would amend the Exon-Florio process.
Date: July 28, 2006
Creator: Jackson, James K.
Partner: UNT Libraries Government Documents Department

The Committee on Foreign Investment in the United States (CFIUS)

Description: The Committee on Foreign Investment in the United States (CFIUS) is an interagency committee that serves the President in overseeing the national security implications of foreign investment in the economy. Since it was established by an Executive Order of President Ford in 1975, the committee has operated in relative obscurity.1 According to a Treasury Department memorandum, the Committee originally was established in order to placate Congress, which had grown concerned over the rapid increase in Organization of the Petroleum Exporting Countries (OPEC) investments in American portfolio assets (Treasury securities, corporate stocks and bonds), and to respond to concerns of some that much of the OPEC investments were being driven by political, rather than by economic, motives.
Date: July 28, 2006
Creator: Jackson, James K.
Partner: UNT Libraries Government Documents Department

The Committee on Foreign Investment in the United States (CFIUS)

Description: The Committee on Foreign Investment in the United States (CFIUS) is an interagency committee that serves the President in overseeing the national security implications of foreign investment in the economy. Since it was established by an Executive Order of President Ford in 1975, the committee has operated in relative obscurity.1 According to a Treasury Department memorandum, the Committee originally was established in order to placate Congress, which had grown concerned over the rapid increase in Organization of the Petroleum Exporting Countries (OPEC) investments in American portfolio assets (Treasury securities, corporate stocks and bonds), and to respond to concerns of some that much of the OPEC investments were being driven by political, rather than by economic, motives.
Date: April 24, 2006
Creator: Jackson, James K.
Partner: UNT Libraries Government Documents Department

The Committee on Foreign Investment in the United States (CFIUS)

Description: The Committee on Foreign Investment in the United States (CFIUS) is an interagency committee that serves the President in overseeing the national security implications of foreign investment in the economy. Since it was established by an Executive Order of President Ford in 1975, the committee has operated in relative obscurity.1 According to a Treasury Department memorandum, the Committee originally was established in order to placate Congress, which had grown concerned over the rapid increase in Organization of the Petroleum Exporting Countries (OPEC) investments in American portfolio assets (Treasury securities, corporate stocks and bonds), and to respond to concerns of some that much of the OPEC investments were being driven by political, rather than by economic, motives.
Date: May 17, 2006
Creator: Jackson, James K.
Partner: UNT Libraries Government Documents Department

Harbor Maintenance Trust Fund Expenditures

Description: In 1986, the Harbor Maintenance Tax (HMT) was enacted to fund U.S. Army Corps of Engineers' (USACE or the Corps) activities related to the routine operation and maintenance (O&M) of harbors, namely the dredging of harbor channels to their authorized depths and widths. Economic and equity issues related to HMT expenditures and collections are the main focus of this report. Before analyzing these issues, the report reviews the legislative history of the tax and legal challenges to it, discusses the advantages and disadvantages of alternative funding mechanisms, and describes the commercial context of current dredging activity. The last section identifies legislation related to harbor maintenance funding.
Date: January 10, 2011
Creator: Frittelli, John
Partner: UNT Libraries Government Documents Department

The state-of-the-art port of entry workshop

Description: The increased demand for freight movements through international ports of entry and the signing of the North American Free Trade Agreement (NAFTA) have increased freight traffic at border ports of entry. The State-of-the-Art Port of Entry Workshop initiated a dialogue among technologists and stakeholders to explore the potential uses of technology at border crossings and to set development priorities. International ports of entry are both information and labor intensive, and there are many promising technologies that could be used to provide timely information and optimize inspection resources. Participants universally held that integration of technologies and operations is critical to improving port services. A series of Next Steps was developed to address stakeholder issues and national priorities, such as the National Transportation Policy and National Drug Policy. This report documents the views of the various stakeholders and technologists present at the workshop and outlines future directions of study.
Date: May 1, 1995
Creator: Godfrey, B.
Partner: UNT Libraries Government Documents Department

Functional description for the Worldwide Port System (WPS) Regional Integrated Cargo Database (ICDB)

Description: This Functional Description for the Worldwide Port System (WPS) Regional Integrated Cargo Database (ICDB) documents the purpose of and requirements for the ICDB in order to ensure a mutual understanding between the development group and the user group of the system. This Functional Description defines ICDB and provides a clear statement of the initial operational capability to be developed.
Date: December 15, 1995
Creator: Truett, L.F.; Rollow, J.P.; Shipe, P.C.; Faby, E.Z.; Fluker, J.; Hancock, W.R. et al.
Partner: UNT Libraries Government Documents Department

Long range plan - Plowshare excavation program (Book 1 - 1966/1967 excavation program binder)

Description: The purpose of this report is to present a proposed five-year program for the Plowshare Excavation Program. In preparing this study we proceed as follows: (a) Review the significant advances (since 1963) in nuclear excavation technology, and (b) identify the key uncertainties in that technology. After completing these two steps, we then proceed to identify key experiments and any new measurements that may be required to increase our predictive capability and/or to resolve the major uncertainties. It is probably clear that if one proceeds in this fashion one may not necessarily arrive at the existing long range excavation program (e.g., the definitions of experiments beyond Cabriolet and Buggy). In fact, one might expect to derive a significantly different long range plan.
Date: September 7, 1967
Creator: Knox, J. B.
Partner: UNT Libraries Government Documents Department

Simulation and real-time optimal scheduling: a framework for integration

Description: Traditional scheduling and simulation models of the same system differ in several fundamental respects. These include the definition of a schedule, the existence of an objective function which orders schedules and indicates the performance of a given schedule according to specific criteria, and the level of fidelity at which the items are represented and processed through he system. This paper presents a conceptual, object-oriented, architecture for combining a traditional, high-level, scheduling system with a detailed, process- level, discrete-event simulation. A multi-echelon planning framework is established in the context of modeling end-to-end military deployments with the focus on detailed seaport operations.
Date: February 1, 1997
Creator: Macal, C.M.; Nevins, M.R.; Williams, M.K. & Joines, J.C.
Partner: UNT Libraries Government Documents Department

A system dynamics approach to intermodalism at the Port of Lewiston

Description: Intermodalism refers to interconnections among modes of transportation, e.g., road, rail, water, and air. Effective intermodal planning must cross boundaries between the public and private sectors as well as transportation modes. The development of an effective and efficient intermodal transportation system requires the identification of barriers to intermodal transportation and the investigation of the impact of proposed changes in infrastructure development, policies, regulations, and planning. A systems approach is necessary to adequately represent the interaction between the sometimes incompatible concerns of all modes and stakeholders. A systems dynamics model of intermodalism at the Port of Lewiston has been developed to highlight leverage points, hidden assumptions, second order effects resulting from feedback loops and system drivers. The purpose of this document is to present the results of the system dynamics model work.
Date: August 1, 1996
Creator: Sebo, D.
Partner: UNT Libraries Government Documents Department

An investigation of the feasibility of building a harbor on the West coast of South America using explosive power of nuclear weapons, a preliminary report

Description: There is an interest in discovering the various peace time uses of nuclear explosives. One of the proposals is the building of harbors. There are several ports along the west coast of South America where lighterage is necessary. This implies a need for expanded harbor facilities. The problem is to find a good location for creating a harbor, and the feasibility of accomplishing this with the use of nuclear force. Feasibility includes blast effects, radiation hazards, the number of weapons needed, and economic considerations. Economic considerations include the cost of treating a harbor of sufficient depth and area, the building of harbor facilities, and the estimated savings and advantages of the new harbor. Several meetings were held with naval personnel of the Military Liaison group at UCRL to discuss the general problems of harbors. Thirty-three different ports were given a preliminary investigation.
Date: December 31, 1971
Creator: Zodtner, H. H.
Partner: UNT Libraries Government Documents Department

Integrated sediment decontamination for the New York/New Jersey Harbor

Description: Disposal of dredged material taken from the New York/New Jersey (NY/NJ) Harbor is problematic because of the presence of inorganic and organic contaminants that under revised testing criteria render it unsuitable for return to the ocean or for beneficial reuse. Decontamination of the dredged material followed by beneficial reuse is one attractive component of the overall comprehensive dredged material management plan being developed by the US Army Corps of Engineers New York District. A demonstration program to validate decontamination processes and to bring them into full-scale use in the NY/NJ Harbor is now in progress. Tests of selected technologies have been completed at the bench scale and pilot-scale (2--15 m{sup 3}) levels. Procedures for demonstration testing on scales from 750 m{sup 3} to 75,000 m{sup 3} are being developed with the goal of producing a useable decontamination system by the end of 1999. The overall project goals and present status of the project are reviewed here.
Date: February 1, 1998
Creator: Stern, W.A.; Donato, K.R.; Clesceri, N.L. & Jones, K.W.
Partner: UNT Libraries Government Documents Department

SEAPORT LIQUID NATURAL GAS STUDY

Description: The Seaport Liquid Natural Gas Study has attempted to evaluate the potential for using LNG in a variety of heavy-duty vehicle and equipment applications at the Ports of Los Angeles and Oakland. Specifically, this analysis has focused on the handling and transport of containerized cargo to, from and within these two facilities. In terms of containerized cargo throughput, Los Angeles and Oakland are the second and sixth busiest ports in the US, respectively, and together handle nearly 4.5 million TEUs per year. At present, the landside handling and transportation of containerized cargo is heavily dependent on diesel-powered, heavy-duty vehicles and equipment, the utilization of which contributes significantly to the overall emissions impact of port-related activities. Emissions from diesel units have been the subject of increasing scrutiny and regulatory action, particularly in California. In the past two years alone, particulate matter from diesel exhaust has been listed as a toxic air contaminant by CAM, and major lawsuits have been filed against several of California's largest supermarket chains, alleging violation of Proposition 65 statutes in connection with diesel emissions from their distribution facilities. CARE3 has also indicated that it may take further regulatory action relating to the TAC listing. In spite of these developments and the very large diesel emissions associated with port operations, there has been little AFV penetration in these applications. Nearly all port operators interviewed by CALSTART expressed an awareness of the issues surrounding diesel use; however, none appeared to be taking proactive steps to address them. Furthermore, while a less controversial issue than emissions, the dominance of diesel fuel use in heavy-duty vehicles contributes to a continued reliance on imported fuels. The increasing concern regarding diesel use, and the concurrent lack of alternative fuel use and vigorous emissions reduction activity at the Ports provide both the backdrop and ...
Date: February 1, 1999
Creator: COOK,Z.
Partner: UNT Libraries Government Documents Department

HIGH RESOLUTION X-RAY FLUORESCENCE MICRO-TOMOGRAPHY ON SINGLE SEDIMENT PARTICLES.

Description: This work focuses on the investigation of the distribution of contaminants in individual sediment particles from the New York/New Jersey Harbor. Knowledge of the spatial distribution of the contaminants within the particles is needed to enable (1) more sophisticated approaches to the understanding of the fate and transport of the contaminants in the environment and (2) more refined methods for cleaning the sediments. The size of the investigated particles ranges from 30-80 microns. Due to the low concentration of the elements of interest and the microscopic size of the environmental particles in these measurements, the small size and high intensity of the analyzing X-ray beam was critical. The high photon flux at the ESRF Microfocus beam line (ID13) was used as the basis for fluorescence tomography to investigate whether the inorganic compounds are taken upon the surface organic coating or whether they are distributed through the volume of the grains being analyzed. The experiments were done using a 13 keV monochromatic beam of approximately 2 {micro}m in size having an intensity of 10{sup 10} ph/s, allowing absolute detection limits on the 0.04-1 fg level for Ti, Cr, Mn, Fe, Ni, and Zn.
Date: July 29, 2002
Creator: VINCZE,L.; VEKEMANS,B.; SZALOKI,I.; JANSSENS,K.; VAN GRIEKEN,R.; FENG,H. et al.
Partner: UNT Libraries Government Documents Department