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Development and Testing of Two Towed Volumetric Hydrophone Array Prototypes to Improve Localization Accuracy During Shipboard Line-transect Cetacean Surveys
The following document presents the result of a project aimed at improving the hydrodynamics of the volumetric array design for towing at faster speeds of 10 knots from large research vessels. The document explains the theory behind the design considerations for each prototype presented, sea trial results and subsequent modifications, and discuss improvements for future designs.
Date:
March 2016
Creator:
Barkley, Yvonne; Barlow, Jay; Rankin, Shannon; D'Spain, Gerald & Oleson, Erin
Object Type:
Report
System:
The UNT Digital Library
Injury Determinations for Marine Mammals Observed Interacting with Hawaii and American Samoa Longline Fisheries During 2009-2013
The following document is a compilation of reports of marine mammal interactions with the Hawaii and American Samoa longline fisheries during 2009-2013, including the assessments of the number of marine mammal deaths, serious injuries, and non-serious injuries by fishery, species, and management areas.
Date:
March 2016
Creator:
Bradford, Amanda L. & Forney, Karin A.
Object Type:
Report
System:
The UNT Digital Library
Stock Assessment Updates if the Bottomfish Management Unit Species of American Samoa, the Commonwealth of the Northern Mariana Islands, and Guam in 2015 Data through 2013
From abstract: This report conducts a strict stock assessment update of the Bottomfish Management Unit Species (BMUS) complexes in American Samoa, the Commonwealth of the Northern Mariana Islands, and Guam, using the same base case production model as used in the previous stock assessment (Brodziak et al., 2012), but with an additional 3 years of catch and nominal catch-per-unit-effort as input data...This paper also conducts stock projections for 2016 and 2017.
Date:
March 2016
Creator:
Yau, Annie; Nadon, Marc; Richards, Benjamin; Brodziak, Jon & Fletcher, Eric
Object Type:
Report
System:
The UNT Digital Library
National Seabird Workshop: Building a National Plan to Improve the State of Knowledge and Reduce Commercial Fisheries Impacts on Seabirds
The following document provides the results of the 2009 National Seabird Workshop hosted by the NSP National Coordinator. The workshop's primary goal was to initiate the development of a National Seabird Implementation Plan that can be used to describe NMFS seabird activites and important partnerships with other management agencies, guide NMFS seabird management and science, and provide seabird-related input into NOAA's strategic planning and budgeting process.
Date:
March 2014
Creator:
Rivera, Kim S.; Ballance, Lisa T.; Benaka, Lee; Breuer, Eric R.; Brooke, Samantha G.; Fitzgerald, Shannon M. et al.
Object Type:
Report
System:
The UNT Digital Library
Report of the National Marine Fisheries Service Automated Image Processing Workshop
From introduction: This report is a summary of presentations and discussions from a workshop on automated image processing conducted in Seattle, Washington, from 4-7 September, 2010. The objective of the workshop was to examine current and future applications of automated image processing for fisheries and marine ecology research.
Date:
March 2012
Creator:
Williams, Kresimir; Rooper, Chris & Harms, John
Object Type:
Report
System:
The UNT Digital Library
The Socioculture Importance of Spearfishing in Hawai'i
The following document examines the importance of spearfishing as a traditional fishing method in Hawaii. The purposes of the research behind this report were to develop a better understanding of the spearfish fishery and community; identify key players and organizations associated with the fishery; provide information to assist the State of Hawaii and the Western Pacific Regional Fishery Management Council in making decisions based on increased understanding of the ways people are socioeconomically affected by fishery policies; document the perspectives/concerns of local spearfishermen and resources users; and contribute to the development and refinement of the fishing community profiles for Hawaii in response to The Magnuson-Stevens Act, National Standard 8.
Date:
March 2012
Creator:
Stoffle, Brent W. & Allen, Stewart D.
Object Type:
Report
System:
The UNT Digital Library
Clinical Observations of Ocular Disease in Hawaiian Monk Seals (Monachus schauinslandi)
From abstract: In 1995, 12 undersized, weaned female Hawaiian monk seal pups were captured at French Frigate Shoals in the Northwestern Hawaiian Islands... Eleven of the pups developed clinical signs of an eye disease between 12 and 46 days after capture... The cause of the eye disease and the site where it originated remain unknown.
Date:
March 2009
Creator:
Hanson, Mark T.; Aguirre, A. Alonso & Braun, Robert C.
Object Type:
Report
System:
The UNT Digital Library
The Hawaiian Monk Seal in the Northwestern Hawaiian Islands, 2003
The following document provides information from the 2003 field studies of the endangered Hawaiian monk seal in the Northwestern Hawaiian Islands. These studies evaluate the status and trends of monk seal subpopulations, natural history traits such as survival, reproduction, growth, behavior, and feeding habits, and the success of various activities designed to facilitate population growth.
Date:
March 2007
Creator:
Johanos, Thea C. & Baker, Jason D.
Object Type:
Report
System:
The UNT Digital Library
Evaluation of Time-area Closures to Reduce Incidental Sea Turtle Take in the Hawaii-based Longline Fishery: Generalized Additive Model (GAM) Development and Retrospective Examination
This report documents a series of steps taken at the National Marine Fisheries Service, Pacific Islands Fisheries Science Center in response to the Order issued by Chief U.S. District Court Judge David Alan Ezra, District of Hawaii, in the case of CMC et al. versus NMFS et al.; CIVIL BO. 99-00152; dated November 23, 1999, to complete an analysis of the temporal and spatial distribution of interactions between Hawaii-based longline vessels and sea turtles to determine time and area closures that would provide the greatest benefit to the turtles.
Date:
March 2005
Creator:
Kobayashi, Donald R. & Polovina, Jeffrey J.
Object Type:
Report
System:
The UNT Digital Library
The Hawaiian Monk Seal in the Northwestern Hawaiian Islands, 1996
This document describes field studies of the endangered Hawaiian monk seal in the Northwestern Hawaiian Islands in 1996. The studies provide information on the status and trends of monk seal populations, natural history traits (survival, reproduction, growth, behavior, and feeding habits), and the success of various activities designed to facilitate population growth.
Date:
March 1999
Creator:
Johanos, Thea C. & Ragen, Timothy J.
Object Type:
Report
System:
The UNT Digital Library
Burns Harbor, Indiana, Monitoring Study, Volume 1: Overview of Approach and Results
From introduction: The program's objective is to acquire information through intensive monitoring of coastal projects in an effort to improve project purpose and attainment, design procedures, construction methods, and operation and maintenance techniques.
Date:
March 1997
Creator:
McGehee, David D.; Prickett, Terri; Shirley, Janean & Moritz, Heidi
Object Type:
Report
System:
The UNT Digital Library
Analytical Electron Microscopy Characterization of Fernald soils. Annual Report, October 1993 - September 1994
A combination of backscattered electron imaging and analytical electron microscopy (AEM) with electron diffraction have been used to determine the physical and chemical properties of uranium contamination in soils from the Fernald Environmental Management Project in Ohio. The information gained from these studies has been used in the development and testing of remediation technologies.
Date:
March 1995
Creator:
Buck, E. C.; Brown, N. R. & Dietz, N. L.
Object Type:
Report
System:
The UNT Digital Library
The Effects of the Glass Surface Area/Solution Volume Ratio on Glass Corrosion: a Critical Review
This report reviews and summarizes the present state of knowledge regarding the effects of the glass surface area/solution volume (SA/V) ratio on the corrosion behavior of borosilicate waste glasses.
Date:
March 1995
Creator:
Ebert, William L.
Object Type:
Report
System:
The UNT Digital Library
Equipment Decontamination: a Brief Survey of the DOE Complex
Deactivation at DOE facilities has left a tremendous amount of contaminated equipment behind. In-situ methods are needed to decontaminate the interiors of the equipment sufficiently to allow either free release or land disposal. A brief survey was completed of the DOE complex on their needs for equipment decontamination with in-situ technology to determine (1) the types of contamination problems within the DOE complex, (2) decontamination processes that are being used or are being developed within the DOE, and (3) the methods that are available to dispose of spent decontamination solutions. In addition, potential sites for using testing decontamination methods were located. Based on the information obtained from these surveys, the Rocky Flats Plants and the Idaho National Engineering Laboratory appear to be best suited complete the initial testing of the decontamination processes.
Date:
March 1995
Creator:
Conner, C.; Chamberlain, D. B.; Chen, L. & Vandegrift, G. F.
Object Type:
Report
System:
The UNT Digital Library
Treatment of Plutonium-Bearing Solutions: a Brief Survey of the DOE Complex
With the abrupt shutdown of some DOE facilities, a significant volume of in-process material was left in place and still requires treatment for interim storage. Because the systems containing these process streams have deteriorated since shutdown, a portable system for treating the solutions may be useful. A brief survey was made of the DOE complex on the need for a portable treatment system to treat plutonium-bearing solutions. A survey was completed to determine (1) the compositions and volumes of solutions and heels present, (2) the methods that have been used to treat these solutions and heels in the past, and (3) the potential problems that exist in removing and treating these solutions. Based on the surveys and on the Defense Nuclear Facilities Safety Board Recommendation 94-1, design criteria for a portable treatment system were generated.
Date:
March 1995
Creator:
Conner, C.; Chamberlain, D. B.; Chen, L. & Vandegrift, G. F.
Object Type:
Report
System:
The UNT Digital Library
Gas Generation from Hanford Grout Samples : Final Report
The radiolytic yields of hydrogen nitrogen, oxygen, nitrous oxide, and carbon monoxide from two batches of WHC-supplied samples of grouted simulated waste have been (gamma) irradiated at several dose rates (0.025, 0.63 and 130 krad/h for hydrogen and 130 krad/h for all other gases). In one batch, the liquid waste simulant that was added to the grout included the original components that were added to Tank 102-AP (labeled "virgin" waste.) The second batch included a similar liquid waste simulant that was preirradiated to 35 Mrad prior to incorporation into the grout. It is believed that the preirradiated samples more closely represent radioactive waste that was stored in the tank for several years. The lowest dose rate corresponds approximately to that expected in the grout; with the high dose rate, doses equivalent to about 85 years storage in grout vaults were achieved. Most of the results on the batch of virgin samples have been reported recently (Report ANL 93/42). Here we report the results from the batch of preirradiated grout samples and compare the results from the two batches. The radiolytic yields of hydrogen and nitrogen are lower in the preirradiated than in the virgin grout. On the other hand G(oxygen) …
Date:
March 1994
Creator:
Jonah, Charles D.; Kapoor, S.; Matheson, Max S.; Mulac, W. A. & Meisel, Dan
Object Type:
Report
System:
The UNT Digital Library
Rehabilitation of the South Jetty, Ocean City, Maryland
Partial abstract: Frequent dredging requirements and scouring at the foundation of Ocean City Inlet's south jetty resulted in a study to determine the source of the shoaling and scouring. The study concluded that sand was being transported northward along Assateague Island, through and over the south jetty, and deposited inside the inlet. The sand was then transported north by ebb currents where it encroached on the Federal navigation channel. A rehabilitation program was initiated to create a littoral barrier to eliminate the shoaling problem and to repair the scour hold. Three headland breakwaters were constructed to stabilize Northern Assateague Island. The site was selected as part of the Monitoring Completed Coastal Projects (MCCP) Program to determine how well the rehabilitation project accomplished its design purpose.
Date:
March 1994
Creator:
Bass, Gregory P.; Fulford, Edward T.; Underwood, Steven G. & Parson, Larry E.
Object Type:
Report
System:
The UNT Digital Library
BlockSolve v1. 1: Scalable Library Software for the Parallel Solution of Sparse Linear Systems
BlockSolve is a software library for solving large, sparse systems of linear equations on massively parallel computers. The matrices must be symmetric, but may have an arbitrary sparsity structure. BlockSolve is a portable package that is compatible with several different message-passing pardigms. This report gives detailed instructions on the use of BlockSolve in applications programs.
Date:
March 1993
Creator:
Jones, Mark T. & Plassmann, Paul E.
Object Type:
Report
System:
The UNT Digital Library
The Hawaiian Monk Seal on Lisianski Island, 1988 and 1990
The following document is a report on an observational study around the Hawaiian monk seal on Lisianski Island in Northwestern Hawaiian Islands between 16-18 of May to 29th of August and the 10th of June to the 11th of August 1990. The data collected is based around reproduction and factors affecting survival as well ashaul-out patterns and population structure.
Date:
March 1993
Creator:
Lee, Margaret M.; Timme, Leslie K.; VanToorenburg, Richard & Becker, Brenda L.
Object Type:
Report
System:
The UNT Digital Library
Lead Exposures and Biological Responses in Military Weapons Systems: Aerosol Characteristics and Acute Lead Effects among US Army Artillerymen: Final Report
This study was to determine the concentration and chemical nature of lead (Pb) aerosols produced during the firing of artillery and to determine the exposures and biological responses of crew members exposed to lead aerosols during such firing. The concentrations of lead-containing aerosols at crew positions depended on wind conditions, with higher concentrations when firing into a head wind. Aerosol concentrations were highest in the muzzle blast zone. Concentrations of lead in the blood of crew members rose during the first 12 days of exposure to elevated airborne lead concentrations and then leveled off. There was no rapid decrease in blood lead concentrations after completion of firing. Small decreases in hematocrit and small increases in free erythrocyte porphyrin were correlated with increasing exposure to airborne lead. These changes were reversed by seven weeks after firing. Changes in nerve conduction velocity had borderline statistical significance to airborne lead exposure. In measuring nerve conduction velocity, differences in skin temperature must be taken into account.
Date:
March 1993
Creator:
Bhattacharyya, M. H.
Object Type:
Report
System:
The UNT Digital Library
ANL Technical Support Program for DOE Environmental Restoration and Waste Management Annual Report October 1990 - September 1991
A program has been established for DOE Environmental Restoration and Waste Management (EM) to evaluate factors that are likely to affect waste glass reaction during repository disposal, with emphasis on an unsaturated environment typical of what may be expected for the proposed Yucca Mountain repository site.
Date:
March 1992
Creator:
Bates, John K.
Object Type:
Report
System:
The UNT Digital Library
Chemical Technology Division Annual Technical Report: 1991
Annual report of the Argonne National Laboratory Chemical Technology Division (CMT) discussing the group's activities during 1991. These included electrochemical technology; fossil fuel research; hazardous waste research; nuclear waste programs; separation science and technology; integral fast reactor pyrochemical processes; actinite recovery; applied physical chemistry; basic chemistry research; analytical chemistry; research and development; and computer applications.
Date:
March 1992
Creator:
Argonne National Laboratory. Chemical Technology Division.
Object Type:
Report
System:
The UNT Digital Library
Detection and Location of Leaks in District Heating Steam Systems: Survey and Review of Current Technology and Practices
This report presents the results of a survey undertaken to identify and characterize current practices for detecting and locating leaks in district heating systems, particular steam systems. Currently used technology and practices are reviewed. In addition, the survey was used to gather information that may be important for the application of acoustic leak detection. A few examples of attempts to locate leaks in steam and hot water pipes by correlation of acoustic signals generated by the leaks are also discussed.
Date:
March 1992
Creator:
Kupperman, D. S.; Raptis, A. C. & Lanham, R. L.
Object Type:
Report
System:
The UNT Digital Library
The Monitoring and Control of TRUEX Processes
The Generic TRUEX Model (GTM) was used to design a flowsheet for the TRUEX solvent extraction process that would be used to determine its instrumentation and control requirements. Sensitivity analyses of the key process variables, namely, the aqueous and organic flow rates, feed compositions, and the number of contactor stages, were carried out to assess their impact on the operation of the TRUEX process. Results of these analyses provide a basis for the selection of an instrument and control system and the eventual implementation of a control algorithm. Volume Two of this report is an evaluation of the instruments available for measuring many of the physical parameters. Equations that model the dynamic behavior of the TRUEX process have been generated. These equations can be used to describe the transient or dynamic behavior of the process for a given flowsheet in accordance with the TRUEX model. Further work will be done with the dynamic model to determine how and how quickly the system responds to various perturbations. The use of perturbation analysis early in the design stage will lead to a robust flowsheet, namely, one that will meet all process goals and allow for wide control bounds. The process time delay, …
Date:
March 1992
Creator:
Regalbuto, M. C.; Misra, B.; Chamberlain, D. B.; Leonard, R. A. & Vandegrift, G. F.
Object Type:
Report
System:
The UNT Digital Library