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331 Matching Results
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Coiled Tubing Safety Manual
This document addresses safety concerns regarding the use of coiled tubing as it pertains to the preservation of personnel, environment and the wellbore.
Date:
April 6, 1999
Creator:
Crow, W.
Object Type:
Report
System:
The UNT Digital Library
Final Technical Report - High-Performance, Oxide-Dispersion-Strengthened Tubes for Production of Ethylene and Other Industrial Chemicals
This project was undertaken by Michigan Technological University and Special Metals Corporation to develop creep-resistant, coking-resistant oxide-dispersion-strengthened (ODS) tubes for use in industrial-scale ethylene pyrolysis and steam methane reforming operations. Ethylene pyrolysis tubes are exposed to some of the most severe service conditions for metallic materials found anywhere in the chemical process industries, including elevated temperatures, oxidizing atmospheres and high carbon potentials. During service, hard deposits of carbon (coke) build up on the inner wall of the tube, reducing heat transfer and restricting the flow of the hydrocarbon feedstocks. About every 20 to 60 days, the reactor must be taken off-line and decoked by burning out the accumulated carbon. This decoking costs on the order of $9 million per year per ethylene plant, accelerates tube degradation, and requires that tubes be replaced about every 5 years. The technology developed under this program seeks to reduce the energy and economic cost of coking by creating novel bimetallic tubes offering a combination of improved coking resistance, creep resistance and fabricability not available in current single-alloy tubes. The inner core of this tube consists of Incoloy(R) MA956, a commercial ferritic Fe-Cr-Al alloy offering a 50% reduction in coke buildup combined with improved carburization …
Date:
April 6, 2006
Creator:
McKimpson, Marvin G.
Object Type:
Report
System:
The UNT Digital Library
Engineering development of advanced coal-fired low-emission boiler systems. Technical progress report No. 5, October--December 1993
Work continued as planned and scheduled. Total expenditures are below budget. Task 2 is complete. Task 3 is complete except for R, D & T Plan -- Phase II. Task 4 is currently slightly behind schedule but is projected to finish on or ahead of schedule. Task 5 was started early. The following major deliverables were issued: (1) Technical Paper for `93 International Joint Power Generation Conference. (2) Technical Paper for IEA Second International Conference, and (3) Topical Report by EAR on Air Toxics. Subtask 4.1 -- Engineering Analysis in support of the CGU design is nearly complete and partial design specifications are being employed in Task 5. Subtask 4.2 -- Experimental Research efforts consisted of the first series of Drop Tube Furnace tests. Data is being analyzed. Subtask 4.3 -- Modeling work to data resulted in input files for Boiler Simulation Facility and flow pattern convergence was attained. Particle combustion is the next step. This work will be reported on at the next Quarterly Project Review meeting. Task 5 was started early to facilitate Task 6 schedule and quality. Integration of the SNO{sub x} Hot Scheme into the boiler and turbine/feedwater train was optimized and design work on the …
Date:
April 6, 1994
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Hanford Control Instrumentation and Procedures
This paper discusses technical bases, operating standards, and instrumentation systems required to achieve the goal of nuclear safety in operation of high-level reactors. Because of the relatively long neutron lifetime in a thermal reactor and the comparatively modest time rates of reactivity change associated with fission poison and temperature effects, the rod system used for compensating reactivity transients and for maintaining flux distribution control may be operated manually. Manual operation of the reactor and the prediction of pile reactivity statue during outages of course involve factors of human error, normal reaction time, and judgment. It is the aim to specify procedures for the operation such that manual control of the reactor may be adequately maintained at all times within the range of reasonably expected calculational errors and human reaction times. The technical considerations used in developing these standards, including the available monitoring indications are discussed first; then the automatic trip devices which should back up the procedures are also mentioned.
Date:
April 6, 1956
Creator:
Fullmer, G. C.
Object Type:
Report
System:
The UNT Digital Library
The DNA sequence and biology of human chromosome 19
Chromosome 19 has the highest gene density of all human chromosomes, more than double the genome-wide average. The large clustered gene families, corresponding high GC content, CpG islands and density of repetitive DNA indicate a chromosome rich in biological and evolutionary significance. Here we describe 55.8 million base pairs of highly accurate finished sequence representing 99.9% of the euchromatin portion of the chromosome. Manual curation of gene loci reveals 1,461 protein-coding genes and 321 pseudogenes. Among these are genes directly implicated in Mendelian disorders, including familial hypercholesterolemia and insulin-resistant diabetes. Nearly one quarter of these genes belong to tandemly arranged families, encompassing more than 25% of the chromosome. Comparative analyses show a fascinating picture of conservation and divergence, revealing large blocks of gene orthology with rodents, scattered regions with more recent gene family expansions and deletions, and segments of coding and non-coding conservation with the distant fish species Takifugu.
Date:
April 6, 2004
Creator:
Grimwood, J.; Gordon, L. A.; Olsen, A.; Terry, A.; Schmutz, J.; Lamerdin, J. et al.
Object Type:
Article
System:
The UNT Digital Library
Comparison of emerging diagnostic tools for large commercial HVAC systems
Diagnostic software tools for large commercial buildings are being developed to help detect and diagnose energy and other performance problems with building operations. These software applications utilize energy management control system (EMCS) trend log data. Due to the recent development of diagnostic tools, there has been little detailed comparison among the tools and a limited awareness of tool capabilities by potential users. Today, these diagnostic tools focus mainly on air handlers, but the opportunity exists for broadening the scope of the tools to include all major parts of heating, cooling, and ventilation systems in more detail. This paper compares several tools in the following areas: (1) Scope, intent, and background; (2) Data acquisition, pre-processing, and management; (3) Problems detected; (4) Raw data visualization; (5) Manual and automated diagnostic methods and (6) Level of automation. This comparison is intended to provide practitioners and researchers with a picture of the current state of diagnostic tools. There is tremendous potential for these tools to help improve commercial building energy and non-energy performance.
Date:
April 6, 2001
Creator:
Friedman, Hannah & Piette, Mary Ann
Object Type:
Article
System:
The UNT Digital Library
The Sequence and Analysis of Duplication Rich Human Chromosome 16
Human chromosome 16 features one of the highest levels of segmentally duplicated sequence among the human autosomes. We report here the 78,884,754 base pairs of finished chromosome 16 sequence, representing over 99.9% of its euchromatin. Manual annotation revealed 880 protein-coding genes confirmed by 1,637 aligned transcripts, 19 tRNA genes, 341 pseudogenes, and 3 RNA pseudogenes. These genes include metallothionein, cadherin, and iroquois gene families, as well as the disease genes for polycystic kidney disease and acute myelomonocytic leukemia. Several large-scale structural polymorphisms spanning hundreds of kilobase pairs were identified and result in gene content differences among humans. While the segmental duplications of chromosome 16 are enriched in the relatively gene poor pericentromere of the p-arm, some are involved in recent gene duplication and conversion events likely to have had an impact on the evolution of primates and human disease susceptibility.
Date:
April 6, 2005
Creator:
Martin, Joel; Han, Cliff; Gordon, Laurie A.; Terry, Astrid; Prabhakar, Shyam; She, Xinwei et al.
Object Type:
Article
System:
The UNT Digital Library
PM-1 Nuclear Power Plant Program: 8th Quarterly Progress Report, December 1, 1960 to February 28, 1961
From abstract: The objective is the design, development, fabrication, installation and initial testing and operation of a prepackaged, air-transportable, pressurized water reactor nuclear power plant, the PM-1.
Date:
April 6, 1961
Creator:
Sieg, J. S.
Object Type:
Report
System:
The UNT Digital Library
SNF/HLW Transfer System Description Document
None
Date:
April 6, 2005
Creator:
Holt, W.
Object Type:
Report
System:
The UNT Digital Library
Recovery of Zirconium Tetrachloride Powder
Report discussing methods for recovering hafnium-free zirconium from irradiated fuel elements. Two methods are discussed: the fluoride method and the Zircex method. Experimental procedures to evaluate these methods and their results are presented.
Date:
April 6, 1956
Creator:
Lee, L. A. & Welt, M. A.
Object Type:
Report
System:
The UNT Digital Library
TANK CHARACTERIATION REPORT FOR SINGLE-SHELL TANK 241-T-111
This document was initially released as WHC-EP-0806. This document is now being released as WHC-SD-WM-ER-540 in order to accommodate internet publishing. This document summarizes the information on the historical uses, present status, and the sampling and analysis results of waste stored in Tank 241-T-111. This report supports the requirements of the Tri-Party Agreement Milestone M-44-05.
Date:
April 6, 1996
Creator:
Simpson, B.C.
Object Type:
Report
System:
The UNT Digital Library
630A Maritime Nuclear Steam Generator Scoping Study
From foreword: This report presents the results of a study of a nuclear steam generator which uses reactor technology during the aircraft nuclear propulsion program to produce superheated steam for marine propulsion.
Date:
April 6, 1962
Creator:
General Electric Company. Flight Propulsion Division.
Object Type:
Report
System:
The UNT Digital Library
Western Gas Sands Project Status Report, 1 December 1978 - 31 December 1978
None
Date:
April 6, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Tank Characterization Report for Single Shell Tank 241-C-104
Interprets information about the tank answering a series of six questions covering areas such as information drivers, tank history, tank comparisons, disposal implications, data quality and quantity, and unique aspects of the tank.
Date:
April 6, 2000
Creator:
Adams, M. R.
Object Type:
Report
System:
The UNT Digital Library
Scaling hypre's multigrid solvers to 100,000 cores
None
Date:
April 6, 2011
Creator:
Baker, A H; Falgout, R D; Kolev, T V & Yang, U M
Object Type:
Article
System:
The UNT Digital Library
Automated Critical Peak Pricing Field Tests: Program Descriptionand Results
California utilities have been exploring the use of critical peak prices (CPP) to help reduce needle peaks in customer end-use loads. CPP is a form of price-responsive demand response (DR). Recent experience has shown that customers have limited knowledge of how to operate their facilities in order to reduce their electricity costs under CPP (Quantum 2004). While the lack of knowledge about how to develop and implement DR control strategies is a barrier to participation in DR programs like CPP, another barrier is the lack of automation of DR systems. During 2003 and 2004, the PIER Demand Response Research Center (DRRC) conducted a series of tests of fully automated electric demand response (Auto-DR) at 18 facilities. Overall, the average of the site-specific average coincident demand reductions was 8% from a variety of building types and facilities. Many electricity customers have suggested that automation will help them institutionalize their electric demand savings and improve their overall response and DR repeatability. This report focuses on and discusses the specific results of the Automated Critical Peak Pricing (Auto-CPP, a specific type of Auto-DR) tests that took place during 2005, which build on the automated demand response (Auto-DR) research conducted through PIER and the …
Date:
April 6, 2006
Creator:
Piette, Mary Ann; Watson, David; Motegi, Naoya; Kiliccote, Sila & Xu, Peng
Object Type:
Report
System:
The UNT Digital Library
Plutonium reclamation facility (PRF), building 236-Z layup plan
This document reviews each system inside PRF to determine the operation and maintenance requirements necessary to maintain safe and predictable system performance for facility systems needed to remain operational while minimizing the maintenance and surveillance being performed. Also covered are the actions required to place PRF in a safe layup configuration while minimizing hazards and taking into account the need for reactivation of certain equipment when cleanup work commences in the future.
Date:
April 6, 1999
Creator:
ANDERSON, R.N.
Object Type:
Report
System:
The UNT Digital Library
EM experiments for computational model validation for AH-1S Cobra Helicopter
The effort described here describes a set of outdoor experiments performed on the AH-1S Cobra helicopter in order to validate and compare to the computational electromagnetic models of the bulk structure of the airframe in the frequency bands up to 4 GHz. Also included in this were coupling measurements to wires and cables inside of the airframe and various cavity to HPM pulse in this frequency range as part of other activities. Additionally, the low power modeling compression will be completed in this time frame.
Date:
April 6, 1997
Creator:
Nelson, S. D.
Object Type:
Article
System:
The UNT Digital Library
Perform Ultrasonic Testing on Cs Capsule Overpacks
This procedure provides a safe, uniform method for the performance of the ultrasonic weld inspection of the Cesium capsule overpacks. The inspection system will detect cracks, lack of fusion, and lack of penetration. This computer controlled automated system will perform the examination once the capsule overpack has been placed in the pool cell. Examination of the capsule overpacks will be in accordance with drawing H-283014, REV. 0 ,and a certified NDE examiner will perform the test procedure, provide analysis, and test documentation.
Date:
April 6, 2000
Creator:
Davis, S. J.
Object Type:
Report
System:
The UNT Digital Library
Report on 8-inch isostatic press explosion at Site 300
On 3 March 1960 at 11:30 a.m. a detonation occurred in the 8-inch isostatic press. The press and building were completely destroyed. Operating personnel were protected and no injuries resulted. Adjacent facilities were not affected. The press was housed in a temporary facility located in the southwest portion of Section 26, Site 300. The facility was situated approximately 1000 feet west of the main site road, and 1400 feet north of the county road. The press building was of frangible wood construction and was surrounded by an earth barricade. A remote control building, provided with overhead protection, a mechanical equipment room, and a transportainer magazine were located outside the barricaded press building.
Date:
April 6, 1960
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Bibliography of Temperature Measurement: January 1953 to June 1960
Report presenting more than 500 references to the field of temperature measurement. These references were collected from two general sources: Scientific and technical literature and government reports. The period covered is from 1953 to June 1960, with some from earlier dates. References are divided into a number of categories based on the type of instrument used. Some references to calibration of instruments and to scientific theories upon which temperature measurement is based are also presented.
Date:
April 6, 1961
Creator:
Halpern, Carl & Moffat, Robert J.
Object Type:
Report
System:
The UNT Digital Library
Country Report on Building Energy Codes in Canada
This report is part of a series of reports on building energy efficiency codes in countries associated with the Asian Pacific Partnership (APP) - Australia, South Korea, Japan, China, India, and the United States of America . This reports gives an overview of the development of building energy codes in Canada, including national energy policies related to building energy codes, history of building energy codes, recent national projects and activities to promote building energy codes. The report also provides a review of current building energy codes (such as building envelope, HVAC, lighting, and water heating) for commercial and residential buildings in Canada.
Date:
April 6, 2009
Creator:
Shui, Bin & Evans, Meredydd
Object Type:
Report
System:
The UNT Digital Library
Simulation of U-5 Prototype Undulator Effects on the Beam Dynamics
The APS prototype undulator U-5 has been installed at NSLS VUV ring. Its effects on the beam behaviour have been simulated with tracking codes TEAPOT and RACETRACK. The tune shift, the distortion of betatron function, the chromaticity, the transverse coupling, and some of the amplitude-dependent effects on the VUV ring have been compared and are presented in this paper.
Date:
April 6, 1992
Creator:
Qian, Y. L. & Turner, L. R.
Object Type:
Article
System:
The UNT Digital Library
Radioactive hot-cell access-hole decontamination machine
A radioactive hot cell access hole decontamination machine is disclosed. A mobile housing has an opening large enough to encircle the access hole and has a shielding door, with a door opening and closing mechanism, for uncovering and covering the opening. The housing contains a shaft which has an apparatus for rotating the shaft and a device for independently translating the shaft from the housing through the opening and access hole into the hot cell chamber. A properly sized cylindrical pig containing wire brushes and cloth or other disks, with an arrangement for releasably attaching it to the end of the shaft, circumferentially cleans the access hole wall of radioactive contamination and thereafter detaches from the shaft to fall into the hot cell chamber.
Date:
April 6, 1981
Creator:
unknown
Object Type:
Patent
System:
The UNT Digital Library