Industry Application Emergency Core Cooling System Cladding Acceptance Criteria Early Demonstration
DOE Office of Scientific and Technical Information (OSTI.GOV)
Szilard, Ronaldo H.; Youngblood, Robert W.; Zhang, Hongbin
2015-09-01
The U. S. NRC is currently proposing rulemaking designated as “10 CFR 50.46c” to revise the loss-of-coolant-accident (LOCA)/emergency core cooling system (ECCS) acceptance criteria to include the effects of higher burnup on cladding performance as well as to address other technical issues. The NRC is also currently resolving the public comments with the final rule expected to be issued in April 2016. The impact of the final 50.46c rule on the industry may involve updating of fuel vendor LOCA evaluation models, NRC review and approval, and licensee submittal of new LOCA evaluations or re-analyses and associated technical specification revisions formore » NRC review and approval. The rule implementation process, both industry and NRC activities, is expected to take 4-6 years following the rule effective date. As motivated by the new rule, the need to use advanced cladding designs may be a result. A loss of operational margin may result due to the more restrictive cladding embrittlement criteria. Initial and future compliance with the rule may significantly increase vendor workload and licensee cost as a spectrum of fuel rod initial burnup states may need to be analyzed to demonstrate compliance. Consequently, there will be an increased focus on licensee decision making related to LOCA analysis to minimize cost and impact, and to manage margin. The proposed rule would apply to a light water reactor and to all cladding types.« less
DOE Office of Scientific and Technical Information (OSTI.GOV)
Szilard, Ronaldo Henriques; Youngblood, Robert; Frepoli, Cesare
2015-04-01
The U. S. NRC is currently proposing rulemaking designated as “10 CFR 50.46c” to revise the LOCA/ECCS acceptance criteria to include the effects of higher burnup on cladding performance as well as to address some other issues. The NRC is also currently resolving the public comments with the final rule expected to be issued in the summer of 2016. The impact of the final 50.46c rule on the industry will involve updating of fuel vendor LOCA evaluation models, NRC review and approval, and licensee submittal of new LOCA evaluations or reanalyses and associated technical specification revisions for NRC review andmore » approval. The rule implementation process, both industry and NRC activities, is expected to take 5-10 years following the rule effective date. The need to use advanced cladding designs is expected. A loss of operational margin will result due to the more restrictive cladding embrittlement criteria. Initial and future compliance with the rule may significantly increase vendor workload and licensee cost as a spectrum of fuel rod initial burnup states may need to be analyzed to demonstrate compliance. Consequently there will be an increased focus on licensee decision making related to LOCA analysis to minimize cost and impact, and to manage margin.« less
Hot Cell Installation and Demonstration of the Severe Accident Test Station
DOE Office of Scientific and Technical Information (OSTI.GOV)
Linton, Kory D.; Burns, Zachary M.; Terrani, Kurt A.
A Severe Accident Test Station (SATS) capable of examining the oxidation kinetics and accident response of irradiated fuel and cladding materials for design basis accident (DBA) and beyond design basis accident (BDBA) scenarios has been successfully installed and demonstrated in the Irradiated Fuels Examination Laboratory (IFEL), a hot cell facility at Oak Ridge National Laboratory. The two test station modules provide various temperature profiles, steam, and the thermal shock conditions necessary for integral loss of coolant accident (LOCA) testing, defueled oxidation quench testing and high temperature BDBA testing. The installation of the SATS system restores the domestic capability to examinemore » postulated and extended LOCA conditions on spent fuel and cladding and provides a platform for evaluation of advanced fuel and accident tolerant fuel (ATF) cladding concepts. This document reports on the successful in-cell demonstration testing of unirradiated Zircaloy-4. It also contains descriptions of the integral test facility capabilities, installation activities, and out-of-cell benchmark testing to calibrate and optimize the system.« less
DOE Office of Scientific and Technical Information (OSTI.GOV)
Walston, S; Rowland, M; Campbell, K
It is difficult to track to the location of a melted core in a GE BWR with Mark I containment during a beyond-design-basis accident. The Cooper Nuclear Station provided a baseline of normal material distributions and shielding configurations for the GE BWR with Mark I containment. Starting with source terms for a design-basis accident, methods and remote observation points were investigated to allow tracking of a melted core during a beyond-design-basis accident. The design of the GE BWR with Mark-I containment highlights an amazing poverty of expectations regarding a common mode failure of all reactor core cooling systems resulting inmore » a beyond-design-basis accident from the simple loss of electric power. This design is shown in Figure 1. The station blackout accident scenario has been consistently identified as the leading contributor to calculated probabilities for core damage. While NRC-approved models and calculations provide guidance for indirect methods to assess core damage during a beyond-design-basis loss-of-coolant accident (LOCA), there appears to be no established method to track the location of the core directly should the LOCA include a degree of fuel melt. We came to the conclusion that - starting with detailed calculations which estimate the release and movement of gaseous and soluble fission products from the fuel - selected dose readings in specific rooms of the reactor building should allow the location of the core to be verified.« less
NASA Astrophysics Data System (ADS)
Nikulin, S. A.; Rozhnov, A. B.; Belov, V. A.; Li, E. V.; Glazkina, V. S.
2011-11-01
Exploratory investigations of the influence of alloying and impurity content in the E110 alloy cladding tubes on the behavior under conditions of Loss of Coolant Accidents (LOCA) has been performed. Three alloys of E110 type have been tested: E110 alloy of nominal composition Zr-1%Nb (E110), E110 alloy of modified composition Zr-1%Nb-0.12%Fe-0.13%O (E110M), E110 alloy of nominal composition Zr-1%Nb with reduced impurity content (E110G). Alloys E110 and E110M were manufactured on the electrolytic basis and alloy E110G was manufactured on the basis of zirconium sponge. The high temperature oxidation tests in steam ( T = 1100 °C, 18% of equivalent cladding reacted (ECR)) have been conducted, kinetics of oxidation was investigated. Quantitative research of structure and fracture macrocharacteristics was performed by means of optical and electron microscopy. The results received were compared with the residual ductility of specimens. The results of the investigation showed the existence of "breakaway oxidation" kinetics and white spalling oxide in E110 and E110M alloys while the specimen oxidation kinetics in E110G alloy was characterized by a parabolic law and specimens had a dense black oxide. Oxygen and iron alloying in the E110 alloy positively changed the macrocharacteristics of structure and fracture. However, in general, it did not improve the resistance to embrittlement in LOCA conditions apparently because of a strong impurity influence caused by electrolytic process of zirconium production.
77 FR 53923 - Biweekly Notice;
Federal Register 2010, 2011, 2012, 2013, 2014
2012-09-04
... to be publicly disclosed. The NRC posts all comment submissions at http://www.regulations.gov as well... (psig) to 49.7 psig for the design basis loss-of- coolant accident (LOCA). In support of the revised P a... analysis. The P a remains below the containment design pressure of 50 psig because of the change in the...
R&D Plan for RISMC Industry Application #1: ECCS/LOCA Cladding Acceptance Criteria
DOE Office of Scientific and Technical Information (OSTI.GOV)
Szilard, Ronaldo Henriques; Zhang, Hongbin; Epiney, Aaron Simon
The Nuclear Regulatory Commission (NRC) is finalizing a rulemaking change that would revise the requirements in 10 CFR 50.46. In the proposed new rulemaking, designated as 10 CFR 50.46c, the NRC proposes a fuel performance-based equivalent cladding reacted (ECR) criterion as a function of cladding hydrogen content before the accident (pre-transient) in order to include the effects of higher burnup on cladding performance as well as to address other technical issues. A loss of operational margin may result due to the more restrictive cladding embrittlement criteria. Initial and future compliance with the rule may significantly increase vendor workload and licenseemore » costs as a spectrum of fuel rod initial burnup states may need to be analyzed to demonstrate compliance. The Idaho National Laboratory (INL) has initiated a project, as part of the DOE Light Water Reactor Sustainability Program (LWRS), to develop analytical capabilities to support the industry in the transition to the new rule. This project is called the Industry Application 1 (IA1) within the Risk-Informed Safety Margin Characterization (RISMC) Pathway of LWRS. The general idea behind the initiative is the development of an Integrated Evaluation Model (IEM). The motivation is to develop a multiphysics framework to analyze how uncertainties are propagated across the stream of physical disciplines and data involved, as well as how risks are evaluated in a LOCA safety analysis as regulated under 10 CFR 50.46c. This IEM is called LOTUS which stands for LOCA Toolkit for US, and it represents the LWRS Program’s response to the proposed new rule making. The focus of this report is to complete an R&D plan to describe the demonstration of the LOCA/ECCS RISMC Industry Application # 1 using the advanced RISMC Toolkit and methodologies. This report includes the description and development plan for a RISMC LOCA tool that fully couples advanced MOOSE tools already in development in order to characterize and optimize plant safety and operational margins. Advanced MOOSE tools that are needed to complete this integrated evaluation model are: RAVEN, RELAP-7, BISON, and MAMMOTH.« less
Localized Multi-Model Extremes Metrics for the Fourth National Climate Assessment
NASA Astrophysics Data System (ADS)
Thompson, T. R.; Kunkel, K.; Stevens, L. E.; Easterling, D. R.; Biard, J.; Sun, L.
2017-12-01
We have performed localized analysis of scenario-based datasets for the Fourth National Climate Assessment (NCA4). These datasets include CMIP5-based Localized Constructed Analogs (LOCA) downscaled simulations at daily temporal resolution and 1/16th-degree spatial resolution. Over 45 temperature and precipitation extremes metrics have been processed using LOCA data, including threshold, percentile, and degree-days calculations. The localized analysis calculates trends in the temperature and precipitation extremes metrics for relatively small regions such as counties, metropolitan areas, climate zones, administrative areas, or economic zones. For NCA4, we are currently addressing metropolitan areas as defined by U.S. Census Bureau Metropolitan Statistical Areas. Such localized analysis provides essential information for adaptation planning at scales relevant to local planning agencies and businesses. Nearly 30 such regions have been analyzed to date. Each locale is defined by a closed polygon that is used to extract LOCA-based extremes metrics specific to the area. For each metric, single-model data at each LOCA grid location are first averaged over several 30-year historical and future periods. Then, for each metric, the spatial average across the region is calculated using model weights based on both model independence and reproducibility of current climate conditions. The range of single-model results is also captured on the same localized basis, and then combined with the weighted ensemble average for each region and each metric. For example, Boston-area cooling degree days and maximum daily temperature is shown below for RCP8.5 (red) and RCP4.5 (blue) scenarios. We also discuss inter-regional comparison of these metrics, as well as their relevance to risk analysis for adaptation planning.
Bio-mechanical assessment toward throwing and lifting process of i-LOCA (Innovative Lobster Catcher)
NASA Astrophysics Data System (ADS)
Sudiarno, A.; Dewi, D. S.; Putri, M. A.
2018-04-01
Indonesia is the country rich in marine resource, one of which is lobster. East java, one of Indonesian province, especially in Region of Gresik and Lamogan, has very huge potential of lobster. Current condition shown that lobster catch by the fisherman mostly depend on lucky factor, which the lobster unintentionally trapped in fisherman’s fish net. By using this mechanism, the number of lobster catch cannot be optimum. Previous researches have produced two versions of i-LOCA, Innovative Lobster Catcher, a special tool for catching the lobster. Although produce more lobster catch, second version of i-LOCA still needs to be scrutinized, one of that is bio-mechanical assessment. The second version of i-LOCA still has no tool to ease throwing and lifting it into the sea. This condition cause Musculoskeletal Disorder (MSD) toward the fisherman. This research perform bio-mechanical assessment toward throwing and lifting process in order to suggest improvement for i-LOCA as the third version. Based on body moment calculation, we found that throwing and lifting process of third version of i-LOCA, each was 3 times and 2 times better than second version of i-LOCA. Meanwhile, Rapid Entire Body Assessment (REBA) score of throwing and lifting process for third version of i-LOCA can be reduced by 5 points compared to second version of i-LOCA.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Faidy, C.; Gilles, P.
The objective of the seminar was to present the current state of the art in Leak-Before-Break (LBB) methodology development, validation, and application in an international forum. With particular emphasis on industrial applications and regulatory policies, the seminar provided an opportunity to compare approaches, experiences, and codifications developed by different countries. The seminar was organized into four topic areas: status of LBB applications; technical issues in LBB methodology; complementary requirements (leak detection and inspection); LBB assessment and margins. As a result of this seminar, an improved understanding of LBB gained through sharing of different viewpoints from different countries, permits consideration of:more » simplified pipe support design and possible elimination of loss-of-coolant-accident (LOCA) mechanical consequences for specific cases; defense-in-depth type of applications without support modifications; support of safety cases for plants designed without the LOCA hypothesis. In support of these activities, better estimates of the limits to the LBB approach should follow, as well as an improvement in codifying methodologies. Selected papers are indexed separately for inclusion in the Energy Science and Technology Database.« less
Rate theory scenarios study on fission gas behavior of U 3 Si 2 under LOCA conditions in LWRs
DOE Office of Scientific and Technical Information (OSTI.GOV)
Miao, Yinbin; Gamble, Kyle A.; Andersson, David
Fission gas behavior of U3Si2 under various loss-of-coolant accident (LOCA) conditions in light water reactors (LWRs) was simulated using rate theory. A rate theory model for U3Si2 that covers both steady-state operation and power transients was developed for the GRASS-SST code based on existing research reactor/ion irradiation experimental data and theoretical predictions of density functional theory (DFT) calculations. The steady-state and LOCA condition parameters were either directly provided or inspired by BISON simulations. Due to the absence of in-pile experiment data for U3Si2's fuel performance under LWR conditions at this stage of accident tolerant fuel (ATF) development, a variety ofmore » LOCA scenarios were taken into consideration to comprehensively and conservatively evaluate the fission gas behavior of U3Si2 during a LOCA.« less
NASA Astrophysics Data System (ADS)
Yan, Y.; Keiser, J. R.; Terrani, K. A.; Bell, G. L.; Snead, L. L.
2014-05-01
Oxidation experiments were conducted at 1200 °C in flowing steam with tubing specimens of Zircaloy-4, 317, 347 stainless steels, and the commercial FeCrAl alloy APMT. The purpose was to determine the oxidation behavior and post-quench ductility under postulated and extended LOCA conditions. The parabolic rate constant for Zircaloy-4 tubing samples at 1200 °C was determined to be k = 2.173 × 107 g2/cm4/s, in excellent agreement with the Cathcart-Pawel correlation. The APMT alloy experienced the slowest oxidation rate among all materials examined in this work. The ductility of post-quenched samples was evaluated by ring compression tests at 135 °C. For Zircaloy-4, the ductile to brittle transition occurs at an equivalent cladding reacted (ECR) of 19.3%. SS-347 was still ductile after being oxidized for 2400 s (CP-ECR ≈ 50%), but the maximum load was reduced significantly owing to the metal layer thickness reduction. No ductility decrease was observed for the post-quenched APMT samples oxidized up to 4 h.
JPRS Report Science & Technology Japan
1989-03-02
Oxychlorides MOCln_2 (Organic Metal Salts) Alkoxides M(OR)n Acetylacetonate M(C5H702)n Acetates M(C2H302)n Oxalates M(C204)n/2 2.2 Hydrolysis and Gel...more deeply understanding hydrothermal dynamics during not only a major rupture LOCA but also a minor rupture LOCA and clarifying the combination of... hydrothermal dynamics of the coolant from the beginning of LOCA to its end, using a scale model of PWR (pressurized water reactor). Under the ROSA-III Plan
Decay Heat Removal from a GFR Core by Natural Convection
DOE Office of Scientific and Technical Information (OSTI.GOV)
Williams, Wesley C.; Hejzlar, Pavel; Driscoll, Michael J.
2004-07-01
One of the primary challenges for Gas-cooled Fast Reactors (GFR) is decay heat removal after a loss of coolant accident (LOCA). Due to the fact that thermal gas cooled reactors currently under design rely on passive mechanisms to dissipate decay heat, there is a strong motivation to accomplish GFR core cooling through natural phenomena. This work investigates the potential of post-LOCA decay heat removal from a GFR core to a heat sink using an external convection loop. A model was developed in the form of the LOCA-COLA (Loss of Coolant Accident - Convection Loop Analysis) computer code as a meansmore » for 1D steady state convective heat transfer loop analysis. The results show that decay heat removal by means of gas cooled natural circulation is feasible under elevated post-LOCA containment pressure conditions. (authors)« less
DOE Office of Scientific and Technical Information (OSTI.GOV)
Szilard, Ronaldo Henriques
A Risk Informed Safety Margin Characterization (RISMC) toolkit and methodology are proposed for investigating nuclear power plant core, fuels design and safety analysis, including postulated Loss-of-Coolant Accident (LOCA) analysis. This toolkit, under an integrated evaluation model framework, is name LOCA toolkit for the US (LOTUS). This demonstration includes coupled analysis of core design, fuel design, thermal hydraulics and systems analysis, using advanced risk analysis tools and methods to investigate a wide range of results.
Nuclear power plant cable materials :
DOE Office of Scientific and Technical Information (OSTI.GOV)
Celina, Mathias C.; Gillen, Kenneth T; Lindgren, Eric Richard
2013-05-01
A selective literature review was conducted to assess whether currently available accelerated aging and original qualification data could be used to establish operational margins for the continued use of cable insulation and jacketing materials in nuclear power plant environments. The materials are subject to chemical and physical degradation under extended radiationthermal- oxidative conditions. Of particular interest were the circumstances under which existing aging data could be used to predict whether aged materials should pass loss of coolant accident (LOCA) performance requirements. Original LOCA qualification testing usually involved accelerated aging simulations of the 40-year expected ambient aging conditions followed by amore » LOCA simulation. The accelerated aging simulations were conducted under rapid accelerated aging conditions that did not account for many of the known limitations in accelerated polymer aging and therefore did not correctly simulate actual aging conditions. These highly accelerated aging conditions resulted in insulation materials with mostly inert aging processes as well as jacket materials where oxidative damage dropped quickly away from the air-exposed outside jacket surface. Therefore, for most LOCA performance predictions, testing appears to have relied upon heterogeneous aging behavior with oxidation often limited to the exterior of the cable cross-section a situation which is not comparable with the nearly homogenous oxidative aging that will occur over decades under low dose rate and low temperature plant conditions. The historical aging conditions are therefore insufficient to determine with reasonable confidence the remaining operational margins for these materials. This does not necessarily imply that the existing 40-year-old materials would fail if LOCA conditions occurred, but rather that unambiguous statements about the current aging state and anticipated LOCA performance cannot be provided based on original qualification testing data alone. The non-availability of conclusive predictions for the aging conditions of 40-year-old cables implies that the same levels of uncertainty will remain for any re-qualification or extended operation of these cables. The highly variable aging behavior of the range of materials employed also implies that simple, standardized aging tests are not sufficient to provide the required aging data and performance predictions for all materials. It is recommended that focused studies be conducted that would yield the material aging parameters needed to predict aging behaviors under low dose, low temperature plant equivalent conditions and that appropriately aged specimens be prepared that would mimic oxidatively-aged 40- to 60- year-old materials for confirmatory LOCA performance testing. This study concludes that it is not sufficient to expose materials to rapid, high radiation and high temperature levels with subsequent LOCA qualification testing in order to predictively quantify safety margins of existing infrastructure with regard to LOCA performance. We need to better understand how cable jacketing and insulation materials have degraded over decades of power plant operation and how this aging history relates to service life prediction and the performance of existing equipment to withstand a LOCA situation.« less
Severe Accident Test Station Design Document
DOE Office of Scientific and Technical Information (OSTI.GOV)
Snead, Mary A.; Yan, Yong; Howell, Michael
The purpose of the ORNL severe accident test station (SATS) is to provide a platform for evaluation of advanced fuels under projected beyond design basis accident (BDBA) conditions. The SATS delivers the capability to map the behavior of advanced fuels concepts under accident scenarios across various temperature and pressure profiles, steam and steam-hydrogen gas mixtures, and thermal shock. The overall facility will include parallel capabilities for examination of fuels and irradiated materials (in-cell) and non-irradiated materials (out-of-cell) at BDBA conditions as well as design basis accident (DBA) or loss of coolant accident (LOCA) conditions. Also, a supporting analytical infrastructure tomore » provide the data-needs for the fuel-modeling components of the Fuel Cycle Research and Development (FCRD) program will be put in place in a parallel manner. This design report contains the information for the first, second and third phases of design and construction of the SATS. The first phase consisted of the design and construction of an out-of-cell BDBA module intended for examination of non-irradiated materials. The second phase of this work was to construct the BDBA in-cell module to test irradiated fuels and materials as well as the module for DBA (i.e. LOCA) testing out-of-cell, The third phase was to build the in-cell DBA module. The details of the design constraints and requirements for the in-cell facility have been closely captured during the deployment of the out-of-cell SATS modules to ensure effective future implementation of the in-cell modules.« less
DOE Office of Scientific and Technical Information (OSTI.GOV)
Liao, J.; Kucukboyaci, V. N.; Nguyen, L.
2012-07-01
The Westinghouse Small Modular Reactor (SMR) is an 800 MWt (> 225 MWe) integral pressurized water reactor (iPWR) with all primary components, including the steam generator and the pressurizer located inside the reactor vessel. The reactor core is based on a partial-height 17x17 fuel assembly design used in the AP1000{sup R} reactor core. The Westinghouse SMR utilizes passive safety systems and proven components from the AP1000 plant design with a compact containment that houses the integral reactor vessel and the passive safety systems. A preliminary loss of coolant accident (LOCA) analysis of the Westinghouse SMR has been performed using themore » WCOBRA/TRAC-TF2 code, simulating a transient caused by a double ended guillotine (DEG) break in the direct vessel injection (DVI) line. WCOBRA/TRAC-TF2 is a new generation Westinghouse LOCA thermal-hydraulics code evolving from the US NRC licensed WCOBRA/TRAC code. It is designed to simulate PWR LOCA events from the smallest break size to the largest break size (DEG cold leg). A significant number of fluid dynamics models and heat transfer models were developed or improved in WCOBRA/TRAC-TF2. A large number of separate effects and integral effects tests were performed for a rigorous code assessment and validation. WCOBRA/TRAC-TF2 was introduced into the Westinghouse SMR design phase to assist a quick and robust passive cooling system design and to identify thermal-hydraulic phenomena for the development of the SMR Phenomena Identification Ranking Table (PIRT). The LOCA analysis of the Westinghouse SMR demonstrates that the DEG DVI break LOCA is mitigated by the injection and venting from the Westinghouse SMR passive safety systems without core heat up, achieving long term core cooling. (authors)« less
DOE Office of Scientific and Technical Information (OSTI.GOV)
Zhang, Hongbin; Szilard, Ronaldo; Epiney, Aaron
Under the auspices of the DOE LWRS Program RISMC Industry Application ECCS/LOCA, INL has engaged staff from both South Texas Project (STP) and the Texas A&M University (TAMU) to produce a generic pressurized water reactor (PWR) model including reactor core, clad/fuel design and systems thermal hydraulics based on the South Texas Project (STP) nuclear power plant, a 4-Loop Westinghouse PWR. A RISMC toolkit, named LOCA Toolkit for the U.S. (LOTUS), has been developed for use in this generic PWR plant model to assess safety margins for the proposed NRC 10 CFR 50.46c rule, Emergency Core Cooling System (ECCS) performance duringmore » LOCA. This demonstration includes coupled analysis of core design, fuel design, thermalhydraulics and systems analysis, using advanced risk analysis tools and methods to investigate a wide range of results. Within this context, a multi-physics best estimate plus uncertainty (MPBEPU) methodology framework is proposed.« less
Hydrogen motion in Zircaloy-4 cladding during a LOCA transient
NASA Astrophysics Data System (ADS)
Elodie, T.; Jean, D.; Séverine, G.; M-Christine, B.; Michel, C.; Berger, P.; Martine, B.; Antoine, A.
2016-04-01
Hydrogen and oxygen are key elements influencing the embrittlement of zirconium-based nuclear fuel cladding during the quench phase following a Loss Of Coolant Accident (LOCA). The understanding of the mechanisms influencing the motion of these two chemical elements in the metal is required to fully describe the material embrittlement. High temperature steam oxidation tests were performed on pre-hydrided Zircaloy-4 samples with hydrogen contents ranging between 11 and 400 wppm prior to LOCA transient. Thanks to the use of both Electron Probe Micro-Analysis (EPMA) and Elastic Recoil Detection Analysis (μ-ERDA), the chemical elements partitioning has been systematically quantified inside the prior-β phase. Image analysis and metallographic examinations were combined to provide an average oxygen profile as well as hydrogen profile within the cladding thickness after LOCA transient. The measured hydrogen profile is far from homogeneous. Experimental distributions are compared to those predicted numerically using calculations derived from a finite difference thermo-diffusion code (DIFFOX) developed at IRSN.
Spatializing Sexuality in Jaime Hernandez's "Locas"
ERIC Educational Resources Information Center
Jones, Jessica E.
2009-01-01
Focusing on Jaime Hernandez's "Locas: The Maggie and Hopey Stories," part of the "Love and Rockets" comic series, I argue that the graphic landscape of this understudied comic offers an illustration of the theories of space in relation to race, gender, and sexuality that have been critical to understandings of Chicana…
DOE Office of Scientific and Technical Information (OSTI.GOV)
Williford, R.E.
1986-09-01
Current emergency core cooling system acceptance criteria for light water reactors specify that, under loss-of-coolant accident (LOCA) conditions, the Baker-Just (BJ) correlation must be used to calculate Zircaloy-steam oxidation, calculated peak cladding temperatures (PCT) must not exceed 1204/sup 0/C, and calculated oxidation must not exceed 17% equivalent cladding reacted (ECR). An appropriately defined minimum margin of safety was estimated for each of these criteria. The currently required BJ oxidation correlation provides margins only over the 1100 to 1500/sup 0/C temperature range at the 95% confidence level. The PCT margins for thermal shock and handling failures are adequate at oxidation temperaturesmore » above 1204/sup 0/C for up to 210 and 160 s, respectively, at the 95% confidence level. The ECR thermal shock and handling margins at the 50 and 95% confidence levels, respectively, range between 2 and 7% ECR for the BJ correlation, but vanish at temperatures above 1100 to 1160/sup 0/C for the best-estimate Cathcart-Pawel correlation. However, use of the Cathcart Pawel correlation for ''design basis'' LOCA calculations can be justified at the 85 to 88% confidence level if cooling rate effects can be neglected.« less
Large-break LOCA, in-reactor fuel bundle Materials Test MT-6A
DOE Office of Scientific and Technical Information (OSTI.GOV)
Wilson, C.L.; Hesson, G.M.; Pilger, J.P.
1993-09-01
This is a report on one of a series of experiments to simulates a loss-of-coolant accident (LOCA) using full-length fuel rods for pressurized water reactors (PWR). The experiments were conducted by Pacific Northwest Laboratory (PNL) under the LOCA simulation Program sponsored by the US Nuclear Regulatory Commission (NRC). The major objective of this program was causing the maximum possible expansion of the cladding on the fuel rods from a short-term adiabatic temperature transient to 1200 K (1700 F) leading to the rupture of the cladding; and second, by reflooding the fuel rods to determine the rate at which the fuelmore » bundle is cooled.« less
Federal Register 2010, 2011, 2012, 2013, 2014
2010-09-02
... are authorized by law, will not present an undue risk to public health or safety, and are consistent... Public Health and Safety The underlying purpose of 10 CFR 50.46 is to establish acceptance criteria for... (LOCA) and non-LOCA criteria, mechanical design, thermal hydraulics, seismic, core physics, and...
Federal Register 2010, 2011, 2012, 2013, 2014
2010-02-23
... the large break loss-of-coolant accident (LOCA) analysis methodology with a reference to WCAP-16009-P... required by 10 CFR 50.91(a), the licensee has provided its analysis of the issue of no significant hazards... Section 5.6.5 to incorporate a new large break LOCA analysis methodology. Specifically, the proposed...
DOE Office of Scientific and Technical Information (OSTI.GOV)
Brzoska, B.; Depisch, F.; Fuchs, H.P.
To analyze the influence of prepressurization on fuel rod behavior, a parametric study has been performed that considers the effects of as-fabricated fuel rod internal prepressure on the normal operation and postulated loss-of-coolant accident (LOCA) rod behavior of a 1300-MW(electric) Kraftwerk Union (KWU) standard pressurized water reactor nuclear power plant. A variation of the prepressure in the range from 15 to 35 bars has only a slight influence on normal operation behavior. Considering the LOCA behavior, only a small temperature increase results from prepressure reduction, while the core-wide straining behavior is improved significantly. The KWU prepressurization takes both conditions intomore » account.« less
Modelling of LOCA Tests with the BISON Fuel Performance Code
DOE Office of Scientific and Technical Information (OSTI.GOV)
Williamson, Richard L; Pastore, Giovanni; Novascone, Stephen Rhead
2016-05-01
BISON is a modern finite-element based, multidimensional nuclear fuel performance code that is under development at Idaho National Laboratory (USA). Recent advances of BISON include the extension of the code to the analysis of LWR fuel rod behaviour during loss-of-coolant accidents (LOCAs). In this work, BISON models for the phenomena relevant to LWR cladding behaviour during LOCAs are described, followed by presentation of code results for the simulation of LOCA tests. Analysed experiments include separate effects tests of cladding ballooning and burst, as well as the Halden IFA-650.2 fuel rod test. Two-dimensional modelling of the experiments is performed, and calculationsmore » are compared to available experimental data. Comparisons include cladding burst pressure and temperature in separate effects tests, as well as the evolution of fuel rod inner pressure during ballooning and time to cladding burst. Furthermore, BISON three-dimensional simulations of separate effects tests are performed, which demonstrate the capability to reproduce the effect of azimuthal temperature variations in the cladding. The work has been carried out in the frame of the collaboration between Idaho National Laboratory and Halden Reactor Project, and the IAEA Coordinated Research Project FUMAC.« less
NASA Astrophysics Data System (ADS)
Antariksawan, Anhar R.; Wahyono, Puradwi I.; Taxwim
2018-02-01
Safety is the priority for nuclear installations, including research reactors. On the other hand, many studies have been done to validate the applicability of nuclear power plant based best estimate computer codes to the research reactor. This study aims to assess the applicability of the RELAP5/SCDAP code to Kartini research reactor. The model development, steady state and transient due to LOCA calculations have been conducted by using RELAP5/SCDAP. The calculation results are compared with available measurements data from Kartini research reactor. The results show that the RELAP5/SCDAP model steady state calculation agrees quite well with the available measurement data. While, in the case of LOCA transient simulations, the model could result in reasonable physical phenomena during the transient showing the characteristics and performances of the reactor against the LOCA transient. The role of siphon breaker hole and natural circulation in the reactor tank as passive system was important to keep reactor in safe condition. It concludes that the RELAP/SCDAP could be use as one of the tool to analyse the thermal-hydraulic safety of Kartini reactor. However, further assessment to improve the model is still needed.
Gluntz, D.M.
1994-10-04
A pressure suppression system includes a containment vessel surrounding a reactor pressure vessel and defining a drywell therein containing a non-condensable gas. An enclosed wetwell pool is disposed inside the containment vessel, and an enclosed gravity driven cooling system (GDCS) pool is disposed above the wetwell pool in the containment vessel. The GDCS pool includes a plenum for receiving through an inlet the non-condensable gas carried with steam from the drywell following a loss-of-coolant accident (LOCA). A condenser is disposed in the GDCS plenum for condensing the steam channeled therein and to trap the non-condensable gas therein. A method of operation includes draining the GDCS pool following the LOCA and channeling steam released into the drywell following the LOCA into the GDCS plenum for cooling along with the non-condensable gas carried therewith for trapping the gas therein. 3 figs.
Gluntz, Douglas M.
1994-01-01
A pressure suppression system includes a containment vessel surrounding a reactor pressure vessel and defining a drywell therein containing a non-condensable gas. An enclosed wetwell pool is disposed inside the containment vessel, and an enclosed gravity driven cooling system (GDCS) pool is disposed above the wetwell pool in the containment vessel. The GDCS pool includes a plenum for receiving through an inlet the non-condensable gas carried with steam from the drywell following a loss-of-coolant accident (LOCA). A condenser is disposed in the GDCS plenum for condensing the steam channeled therein and to trap the non-condensable gas therein. A method of operation includes draining the GDCS pool following the LOCA and channeling steam released into the drywell following the LOCA into the GDCS plenum for cooling along with the non-condensable gas carried therewith for trapping the gas therein.
Proceedings of the international meeting on thermal nuclear reactor safety. Vol. 1
DOE Office of Scientific and Technical Information (OSTI.GOV)
None
Separate abstracts are included for each of the papers presented concerning current issues in nuclear power plant safety; national programs in nuclear power plant safety; radiological source terms; probabilistic risk assessment methods and techniques; non LOCA and small-break-LOCA transients; safety goals; pressurized thermal shocks; applications of reliability and risk methods to probabilistic risk assessment; human factors and man-machine interface; and data bases and special applications.
TRAC-PF1 code verification with data from the OTIS test facility. [Once-Through Intergral System
DOE Office of Scientific and Technical Information (OSTI.GOV)
Childerson, M.T.; Fujita, R.K.
1985-01-01
A computer code (TRAC-PF1/MOD1) developed for predicting transient thermal and hydraulic integral nuclear steam supply system (NSSS) response was benchmarked. Post-small break loss-of-coolant accident (LOCA) data from a scaled, experimental facility, designated the One-Through Integral System (OTIS), were obtained for the Babcock and Wilcox NSSS and compared to TRAC predictions. The OTIS tests provided a challenging small break LOCA data set for TRAC verification. The major phases of a small break LOCA observed in the OTIS tests included pressurizer draining and loop saturation, intermittent reactor coolant system circulation, boiler-condenser mode, and the initial stages of refill. The TRAC code wasmore » successful in predicting OTIS loop conditions (system pressures and temperatures) after modification of the steam generator model. In particular, the code predicted both pool and auxiliary-feedwater initiated boiler-condenser mode heat transfer.« less
DOE Office of Scientific and Technical Information (OSTI.GOV)
Liao, J.; Cao, L.; Ohkawa, K.
2012-07-01
The non-condensable gases condensation suppression model is important for a realistic LOCA safety analysis code. A condensation suppression model for direct contact condensation was previously developed by Westinghouse using first principles. The model is believed to be an accurate description of the direct contact condensation process in the presence of non-condensable gases. The Westinghouse condensation suppression model is further revised by applying a more physical model. The revised condensation suppression model is thus implemented into the WCOBRA/TRAC-TF2 LOCA safety evaluation code for both 3-D module (COBRA-TF) and 1-D module (TRAC-PF1). Parametric study using the revised Westinghouse condensation suppression model ismore » conducted. Additionally, the performance of non-condensable gases condensation suppression model is examined in the ACHILLES (ISP-25) separate effects test and LOFT L2-5 (ISP-13) integral effects test. (authors)« less
Pressure suppression containment system
Gluntz, Douglas M.; Townsend, Harold E.
1994-03-15
A pressure suppression containment system includes a containment vessel surrounding a reactor pressure vessel and defining a drywell therein containing a non-condensable gas. An enclosed wetwell pool is disposed inside the containment vessel, and a gravity driven cooling system (GDCS) pool is disposed above the wetwell pool in the containment vessel. The wetwell pool includes a plenum for receiving the non-condensable gas carried with steam from the drywell following a loss-of coolant-accident (LOCA). The wetwell plenum is vented to a plenum above the GDCS pool following the LOCA for suppressing pressure rise within the containment vessel. A method of operation includes channeling steam released into the drywell following the LOCA into the wetwell pool for cooling along with the non-condensable gas carried therewith. The GDCS pool is then drained by gravity, and the wetwell plenum is vented into the GDCS plenum for channeling the non-condensable gas thereto.
Pressure suppression containment system
Gluntz, D.M.; Townsend, H.E.
1994-03-15
A pressure suppression containment system includes a containment vessel surrounding a reactor pressure vessel and defining a drywell therein containing a non-condensable gas. An enclosed wetwell pool is disposed inside the containment vessel, and a gravity driven cooling system (GDCS) pool is disposed above the wetwell pool in the containment vessel. The wetwell pool includes a plenum for receiving the non-condensable gas carried with steam from the drywell following a loss-of-coolant-accident (LOCA). The wetwell plenum is vented to a plenum above the GDCS pool following the LOCA for suppressing pressure rise within the containment vessel. A method of operation includes channeling steam released into the drywell following the LOCA into the wetwell pool for cooling along with the non-condensable gas carried therewith. The GDCS pool is then drained by gravity, and the wetwell plenum is vented into the GDCS plenum for channeling the non-condensable gas thereto. 6 figures.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Repetto, G.; Dominguez, C.; Durville, B.
The safety principle in case of a LOCA is to preserve the short and long term coolability of the core. The associated safety requirements are to ensure the resistance of the fuel rods upon quench and post-quench loads and to maintain a coolable geometry in the core. An R&D program has been launched by IRSN with the support of EDF, to perform both experimental and modeling activities in the frame of the LOCA transient, on technical issues such as: - flow blockage within a fuel rods bundle and its potential impact on coolability, - fuel fragment relocation in the balloonedmore » areas: its potential impact on cladding PCT (Peak Cladding Temperature) and on the maximum oxidation rate, - potential loss of cladding integrity upon quench and post-quench loads. The PERFROI project (2014-2019) focusing on the first above issue, is structured in two axes: 1. axis 1: thermal mechanical behavior of deformation and rupture of cladding taking into account the contact between fuel rods; specific research at LaMCoS laboratory focus on the hydrogen behavior in cladding alloys and its impact on the mechanical behavior of the rod; and, 2. axis 2: thermal hydraulics study of a partially blocked region of the core (ballooned area taking into account the fuel relocation with local over power), during cooling phase by water injection; More detailed activities foreseen in collaboration with LEMTA laboratory will focus on the characterization of two phase flows with heat transfer in deformed structures.« less
Rate Theory Modeling and Simulation of Silicide Fuel at LWR Conditions
DOE Office of Scientific and Technical Information (OSTI.GOV)
Miao, Yinbin; Ye, Bei; Hofman, Gerard
As a promising candidate for the accident tolerant fuel (ATF) used in light water reactors (LWRs), the fuel performance of uranium silicide (U 3Si 2) at LWR conditions needs to be well understood. In this report, rate theory model was developed based on existing experimental data and density functional theory (DFT) calculations so as to predict the fission gas behavior in U 3Si 2 at LWR conditions. The fission gas behavior of U 3Si 2 can be divided into three temperature regimes. During steady-state operation, the majority of the fission gas stays in intragranular bubbles, whereas the dominance of intergranularmore » bubbles and fission gas release only occurs beyond 1000 K. The steady-state rate theory model was also used as reference to establish a gaseous swelling correlation of U 3Si 2 for the BISON code. Meanwhile, the overpressurized bubble model was also developed so that the fission gas behavior at LOCA can be simulated. LOCA simulation showed that intragranular bubbles are still dominant after a 70 second LOCA, resulting in a controllable gaseous swelling. The fission gas behavior of U 3Si 2 at LWR conditions is benign according to the rate theory prediction at both steady-state and LOCA conditions, which provides important references to the qualification of U 3Si 2 as a LWR fuel material with excellent fuel performance and enhanced accident tolerance.« less
MODELLING OF FUEL BEHAVIOUR DURING LOSS-OF-COOLANT ACCIDENTS USING THE BISON CODE
DOE Office of Scientific and Technical Information (OSTI.GOV)
Pastore, G.; Novascone, S. R.; Williamson, R. L.
2015-09-01
This work presents recent developments to extend the BISON code to enable fuel performance analysis during LOCAs. This newly developed capability accounts for the main physical phenomena involved, as well as the interactions among them and with the global fuel rod thermo-mechanical analysis. Specifically, new multiphysics models are incorporated in the code to describe (1) transient fission gas behaviour, (2) rapid steam-cladding oxidation, (3) Zircaloy solid-solid phase transition, (4) hydrogen generation and transport through the cladding, and (5) Zircaloy high-temperature non-linear mechanical behaviour and failure. Basic model characteristics are described, and a demonstration BISON analysis of a LWR fuel rodmore » undergoing a LOCA accident is presented. Also, as a first step of validation, the code with the new capability is applied to the simulation of experiments investigating cladding behaviour under LOCA conditions. The comparison of the results with the available experimental data of cladding failure due to burst is presented.« less
TECHNICAL BASIS FOR A CANDIDATE BUILDING MATERIALS RADIUM STANDARD
The report summarizes the technical basis for a candidate building materials radium standard. It contains the standard and a summary of the technical basis for the standard. (NOTE: The Florida Radon Research Program (FRRP), sponsored by the Environmental Protection Agency and the...
Experimental study of Siphon breaker about size effect in real scale reactor design
DOE Office of Scientific and Technical Information (OSTI.GOV)
Kang, S. H.; Ahn, H. S.; Kim, J. M.
2012-07-01
Rupture accident within the pipe of a nuclear reactor is one of the main causes of a loss of coolant accident (LOCA). Siphon-breaking is a passive method that can prevent a LOCA. In this study, either a line or a hole is used as a siphon-breaker, and the effect of various parameters, such as the siphon-breaker size, pipe rupture point, pipe rupture size, and the presence of an orifice, are investigated using an experimental facility similar in size to a full-scale reactor. (authors)
DOE Office of Scientific and Technical Information (OSTI.GOV)
Mohr, C.L.; Rausch, W.N.; Hesson, G.M.
The LOCA Simulation Program in the NRU reactor is the first set of experiments to provide data on the behavior of full-length, nuclear-heated PWR fuel bundles during the heatup, reflood, and quench phases of a loss-of-coolant accident (LOCA). This paper compares the temperature time histories of 4 experimental test cases with 4 computer codes: CE-THERM, FRAP-T5, GT3-FLECHT, and TRUMP-FLECHT. The preliminary comparisons between prediction and experiment show that the state-of-the art fuel codes have large uncertainties and are not necessarily conservative in predicting peak temperatures, turn around times, and bundle quench times.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Kroeger, P.G.; Rohatgi, U.S.; Jo, J.H.
1998-04-01
For three potential Loss-of-Coolant Accident (LOCA) scenarios in the General Electric Simplified Boiling Water Reactors (SBWR) a set of Phenomena Identification and Ranking Tables (PIRT) is presented. The selected LOCA scenarios are typical for the class of small and large breaks generally considered in Safety Analysis Reports. The method used to develop the PIRTs is described. Following is a discussion of the transient scenarios, the PIRTs are presented and discussed in detailed and in summarized form. A procedure for future validation of the PIRTs, to enhance their value, is outlined. 26 refs., 25 figs., 44 tabs.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Spore, J.W.; Cappiello, M.W.; Dotson, P.J.
The analytical support in 1985 for Cylindrical Core Test Facility (CCTF), Slab Core Test Facility (SCTF), and Upper Plenum Test Facility (UPTF) tests involves the posttest analysis of 16 tests that have already been run in the CCTF and the SCTF and the pretest analysis of 3 tests to be performed in the UPTF. Posttest analysis is used to provide insight into the detailed thermal-hydraulic phenomena occurring during the refill and reflood tests performed in CCTF and SCTF. Pretest analysis is used to ensure that the test facility is operated in a manner consistent with the expected behavior of anmore » operating full-scale plant during an accident. To obtain expected behavior of a plant during an accident, two plant loss-of-coolant-accident (LOCA) calculations were performed: a 200% cold-leg-break LOCA calculation for a 2772 MW(t) Babcock and Wilcox plant and a 200% cold-leg-break LOCA calculation for a 3315 MW(t) Westinghouse plant. Detailed results are presented for several CCTF UPI tests and the Westinghouse plant analysis.« less
Aging, Loss-of-Coolant Accident (LOCA), and high potential testing of damaged cables
DOE Office of Scientific and Technical Information (OSTI.GOV)
Vigil, R.A.; Jacobus, M.J.
1994-04-01
Experiments were conducted to assess the effects of high potential testing of cables and to assess the survivability of aged and damaged cables under Loss-of-Coolant Accident (LOCA) conditions. High potential testing at 240 Vdc/mil on undamaged cables suggested that no damage was incurred on the selected virgin cables. During aging and LOCA testing, Okonite ethylene propylene rubber (EPR) cables with a bonded jacket experienced unexpected failures. The failures appear to be primarily related to the level of thermal aging and the presence of a bonded jacket that ages more rapidly than the insulation. For Brand Rex crosslinked polyolefin (XLPO) cables,more » the results suggest that 7 mils of insulation remaining should give the cables a high probability of surviving accident exposure following aging. The voltage necessary to detect when 7 mils of insulation remain on unaged Brand Rex cables is approximately 35 kVdc. This voltage level would almost certainly be unacceptable to a utility for use as a damage assessment tool. However, additional tests indicated that a 35 kvdc voltage application would not damage virgin Brand Rex cables when tested in water. Although two damaged Rockbestos silicone rubber cables also failed during the accident test, no correlation between failures and level of damage was apparent.« less
DOE Office of Scientific and Technical Information (OSTI.GOV)
PIERSON, R.M.
1999-10-27
This document provides the technical basis for use of remote reading capabilities with radiological control instruments at River Protection Project facilities. The purpose of this document is to evaluate applications of remote reading capabilities with Radiological Control instrumentation to allow continuous monitoring of radiation dose rates at River Protection Project (RPP) facilities. In addition this document provides a technical basis and implementing guidelines for remote monitoring of dose rates and their potential contribution to maintaining radiation exposures ALARA.
Comparisons of Wilks’ and Monte Carlo Methods in Response to the 10CFR50.46(c) Proposed Rulemaking
DOE Office of Scientific and Technical Information (OSTI.GOV)
Zhang, Hongbin; Szilard, Ronaldo; Zou, Ling
The Nuclear Regulatory Commission (NRC) is proposing a new rulemaking on emergency core system/loss-of-coolant accident (LOCA) performance analysis. In the proposed rulemaking, designated as 10CFR50.46(c), the US NRC put forward an equivalent cladding oxidation criterion as a function of cladding pre-transient hydrogen content. The proposed rulemaking imposes more restrictive and burnup-dependent cladding embrittlement criteria; consequently nearly all the fuel rods in a reactor core need to be analyzed under LOCA conditions to demonstrate compliance to the safety limits. New analysis methods are required to provide a thorough characterization of the reactor core in order to identify the locations of themore » limiting rods as well as to quantify the safety margins under LOCA conditions. With the new analysis method presented in this work, the limiting transient case and the limiting rods can be easily identified to quantify the safety margins in response to the proposed new rulemaking. In this work, the best-estimate plus uncertainty (BEPU) analysis capability for large break LOCA with the new cladding embrittlement criteria using the RELAP5-3D code is established and demonstrated with a reduced set of uncertainty parameters. Both the direct Monte Carlo method and the Wilks’ nonparametric statistical method can be used to perform uncertainty quantification. Wilks’ method has become the de-facto industry standard to perform uncertainty quantification in BEPU LOCA analyses. Despite its widespread adoption by the industry, the use of small sample sizes to infer statement of compliance to the existing 10CFR50.46 rule, has been a major cause of unrealized operational margin in today’s BEPU methods. Moreover the debate on the proper interpretation of the Wilks’ theorem in the context of safety analyses is not fully resolved yet, even more than two decades after its introduction in the frame of safety analyses in the nuclear industry. This represents both a regulatory and application risk in rolling out new methods. With the 10CFR50.46(c) proposed rulemaking, the deficiencies of the Wilks’ approach are further exacerbated. The direct Monte Carlo approach offers a robust alternative to perform uncertainty quantification within the context of BEPU analyses. In this work, the Monte Carlo method is compared with the Wilks’ method in response to the NRC 10CFR50.46(c) proposed rulemaking.« less
Federal Register 2010, 2011, 2012, 2013, 2014
2012-07-05
... specific learning disabilities. (Sec. 382.3). What is not considered a physical or mental impairment... Secretary 14 CFR Part 382 Nondiscrimination on the Basis of Disability in Air Travel: Draft Technical... [Docket No. DOT-OST-2012--0098] Nondiscrimination on the Basis of Disability in Air Travel: Draft...
A Study of the Jettisoning of JP-4 Fuel in the Atmosphere
1975-11-01
t e r m i n e d by m e a s u r i n g the s tagna t ion p r e s s u r e with a pitot probe , shown in Fig. 21, with the s p h e r i c a l t...ip. The rod loca ted to the r igh t of the pitot probe was loca ted in the s a m e photographic plane as the suspended J P - 4 drop- le t...of Atomiza t ion in C a r b u r e t o r s . " NACA TM 518, 1929. 13. Lapple , C. E . , Henry , J . P . , J r . , and Blake, D. E. " A t o
Overview of Fuel Rod Simulator Usage at ORNL
NASA Astrophysics Data System (ADS)
Ott, Larry J.; McCulloch, Reg
2004-02-01
During the 1970s and early 1980s, the Oak Ridge National Laboratory (ORNL) operated large out-of-reactor experimental facilities to resolve thermal-hydraulic safety issues in nuclear reactors. The fundamental research ranged from material mechanical behavior of fuel cladding during the depressurization phase of a loss-of-coolant accident (LOCA) to basic heat transfer research in gas- or sodium-cooled cores. The largest facility simulated the initial phase (less than 1 min. of transient time) of a LOCA in a commercial pressurized-water reactor. The nonnuclear reactor cores of these facilities were mimicked via advanced, highly instrumented electric fuel rod simulators locally manufactured at ORNL. This paper provides an overview of these experimental facilities with an emphasis on the fuel rod simulators.
Numerical study of air ingress transition to natural circulation in a high temperature helium loop
DOE Office of Scientific and Technical Information (OSTI.GOV)
Franken, Daniel; Gould, Daniel; Jain, Prashant K.
Here, the generation-IV high temperature gas cooled reactors (HTGRs) are designed with many passive safety features, one of which is the ability to passively remove heat under a loss of coolant accident (LOCA). However, several common reactor designs do not prevent against a large break in the coolant system and may therefore experience a depressurized LOCA. This would lead to air entering into the reactor system via several potential modes of ingress: diffusion, gravity currents, and natural circulation. At the onset of a LOCA, the initial rate of air ingress is expected to be very slow because it is governedmore » by molecular diffusion. However, after several hours, natural circulation would commence, thus, bringing the air into the reactor system at a much higher rate. As a consequence, air ingress would cause the high temperature graphite matrix to oxidize, leading to its thermal degradation and decreased passive heat (decay) removal capability. Therefore, it is essential to understand the transition of air ingress from molecular diffusion to natural circulation in an HTGR system. This paper presents results from a computational fluid dynamics (CFD) model to study the air ingress transition behavior. These results are validated against an h-shaped high temperature helium loop experiment. Details are provided to quantitatively predict the transition time from molecular diffusion to natural circulation.« less
Numerical study of air ingress transition to natural circulation in a high temperature helium loop
Franken, Daniel; Gould, Daniel; Jain, Prashant K.; ...
2017-09-21
Here, the generation-IV high temperature gas cooled reactors (HTGRs) are designed with many passive safety features, one of which is the ability to passively remove heat under a loss of coolant accident (LOCA). However, several common reactor designs do not prevent against a large break in the coolant system and may therefore experience a depressurized LOCA. This would lead to air entering into the reactor system via several potential modes of ingress: diffusion, gravity currents, and natural circulation. At the onset of a LOCA, the initial rate of air ingress is expected to be very slow because it is governedmore » by molecular diffusion. However, after several hours, natural circulation would commence, thus, bringing the air into the reactor system at a much higher rate. As a consequence, air ingress would cause the high temperature graphite matrix to oxidize, leading to its thermal degradation and decreased passive heat (decay) removal capability. Therefore, it is essential to understand the transition of air ingress from molecular diffusion to natural circulation in an HTGR system. This paper presents results from a computational fluid dynamics (CFD) model to study the air ingress transition behavior. These results are validated against an h-shaped high temperature helium loop experiment. Details are provided to quantitatively predict the transition time from molecular diffusion to natural circulation.« less
Westinghouse Small Modular Reactor passive safety system response to postulated events
DOE Office of Scientific and Technical Information (OSTI.GOV)
Smith, M. C.; Wright, R. F.
2012-07-01
The Westinghouse Small Modular Reactor (SMR) is an 800 MWt (>225 MWe) integral pressurized water reactor. This paper is part of a series of four describing the design and safety features of the Westinghouse SMR. This paper focuses in particular upon the passive safety features and the safety system response of the Westinghouse SMR. The Westinghouse SMR design incorporates many features to minimize the effects of, and in some cases eliminates the possibility of postulated accidents. The small size of the reactor and the low power density limits the potential consequences of an accident relative to a large plant. Themore » integral design eliminates large loop piping, which significantly reduces the flow area of postulated loss of coolant accidents (LOCAs). The Westinghouse SMR containment is a high-pressure, compact design that normally operates at a partial vacuum. This facilitates heat removal from the containment during LOCA events. The containment is submerged in water which also aides the heat removal and provides an additional radionuclide filter. The Westinghouse SMR safety system design is passive, is based largely on the passive safety systems used in the AP1000{sup R} reactor, and provides mitigation of all design basis accidents without the need for AC electrical power for a period of seven days. Frequent faults, such as reactivity insertion events and loss of power events, are protected by first shutting down the nuclear reaction by inserting control rods, then providing cold, borated water through a passive, buoyancy-driven flow. Decay heat removal is provided using a layered approach that includes the passive removal of heat by the steam drum and independent passive heat removal system that transfers heat from the primary system to the environment. Less frequent faults such as loss of coolant accidents are mitigated by passive injection of a large quantity of water that is readily available inside containment. An automatic depressurization system is used to reduce the reactor pressure in a controlled manner to facilitate the passive injection. Long-term decay heat removal is accomplished using the passive heat removal systems augmented by heat transfer through the containment vessel to the environment. The passive injection systems are designed so that the fuel remains covered and effectively cooled throughout the event. Like during the frequent faults, the passive systems provide effective cooling without the need for ac power for seven days following the accident. Connections are available to add additional water to indefinitely cool the plant. The response of the safety systems of the Westinghouse SMR to various initiating faults has been examined. Among them, two accidents; an extended station blackout event, and a LOCA event have been evaluated to demonstrate how the plant will remain safe in the unlikely event that either should occur. (authors)« less
Waste Receiving and Processing (WRAP) Module 1 Hazards Assessment
DOE Office of Scientific and Technical Information (OSTI.GOV)
CAMPBELL, L.R.
1999-09-29
This document establishes the technical basis in support of Emergency Planning activities for the WRAP Module 1 Facility on the Hanford Site. Through this document, the technical basis for the development of facility specific Emergency Action Levels and Emergency Planning Zone is demonstrated.
A guide to aviation education resources
DOT National Transportation Integrated Search
1993-01-01
The National Coalition for Aviation Education represents industry and labor, united to promote : aviation education activities and resources; increase public understanding of the importance of aviation; and support educational initiatives at the loca...
Development of Technical Basis for Burnup Credit Regulatory Guidance in the United States
DOE Office of Scientific and Technical Information (OSTI.GOV)
Parks, Cecil V; Wagner, John C; Mueller, Don
2011-01-01
In the United States (U.S.) there has been and continues to be considerable interest in the increased use of burnup credit as part of the safety basis for SNF systems and this interest has motivated numerous technical studies related to the application of burnup credit for maintaining subcriticality. Responding to industry requests and needs, the U.S. Nuclear Regulatory Commission initiated a burnup credit research program, with support from the Oak Ridge National Laboratory, to develop regulatory guidance and the supporting technical basis for allowing and expanding the use of burnup credit in pressurized-water reactor SNF storage and transport applications. Themore » objective of this paper is to summarize the work and significant accomplishments, with references to the technical reports and publications for complete details.« less
7 CFR 653.3 - Adaptation of technical standards.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 6 2012-01-01 2012-01-01 false Adaptation of technical standards. 653.3 Section 653.3..., DEPARTMENT OF AGRICULTURE SUPPORT ACTIVITIES TECHNICAL STANDARDS § 653.3 Adaptation of technical standards. Technical standards and criteria developed on a national basis may require special adaptation to meet local...
7 CFR 653.3 - Adaptation of technical standards.
Code of Federal Regulations, 2014 CFR
2014-01-01
... 7 Agriculture 6 2014-01-01 2014-01-01 false Adaptation of technical standards. 653.3 Section 653.3..., DEPARTMENT OF AGRICULTURE SUPPORT ACTIVITIES TECHNICAL STANDARDS § 653.3 Adaptation of technical standards. Technical standards and criteria developed on a national basis may require special adaptation to meet local...
7 CFR 653.3 - Adaptation of technical standards.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 6 2011-01-01 2011-01-01 false Adaptation of technical standards. 653.3 Section 653.3..., DEPARTMENT OF AGRICULTURE SUPPORT ACTIVITIES TECHNICAL STANDARDS § 653.3 Adaptation of technical standards. Technical standards and criteria developed on a national basis may require special adaptation to meet local...
7 CFR 653.3 - Adaptation of technical standards.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 7 Agriculture 6 2013-01-01 2013-01-01 false Adaptation of technical standards. 653.3 Section 653.3..., DEPARTMENT OF AGRICULTURE SUPPORT ACTIVITIES TECHNICAL STANDARDS § 653.3 Adaptation of technical standards. Technical standards and criteria developed on a national basis may require special adaptation to meet local...
Partnership strategies for safety roadside rest areas.
DOT National Transportation Integrated Search
2009-01-01
This project studied the many factors influencing the potential for public private partnerships for Safety : Roadside Rest Areas. It found that Federal and California State laws and regulations represent important : barriers to certain types and loca...
This document represents the first volume of a set of three volumes that address the technical basis and requirements for assessing the potential applicability of MNA as part of a ground-water remedy for plumes with non-radionuclide and/or radionuclide inorganic contaminants. Vo...
A framework for collaboration in public transit systems
DOT National Transportation Integrated Search
1997-05-01
The 494 transportation corridor stretches eight miles and connects residential suburbs with major commercial areas, including the Mall of America and the Minneapolis-St. Paul International Airport. The corridor includes l-494 as well as parallel loca...
10 CFR 830.205 - Technical safety requirements.
Code of Federal Regulations, 2010 CFR
2010-01-01
... must: (1) Develop technical safety requirements that are derived from the documented safety analysis... 10 Energy 4 2010-01-01 2010-01-01 false Technical safety requirements. 830.205 Section 830.205 Energy DEPARTMENT OF ENERGY NUCLEAR SAFETY MANAGEMENT Safety Basis Requirements § 830.205 Technical...
Code of Federal Regulations, 2010 CFR
2010-01-01
... (CONTINUED) TECHNICAL ASSISTANCE GRANTS Technical Assistance and Training Grants § 1775.35 Eligibility. (a... provide technical assistance and/or training on a regional basis to associations as provided in § 1775.33... resources to provide technical assistance and/or training to associations in rural areas through its staff...
10 CFR 830.205 - Technical safety requirements.
Code of Federal Regulations, 2011 CFR
2011-01-01
... must: (1) Develop technical safety requirements that are derived from the documented safety analysis... 10 Energy 4 2011-01-01 2011-01-01 false Technical safety requirements. 830.205 Section 830.205 Energy DEPARTMENT OF ENERGY NUCLEAR SAFETY MANAGEMENT Safety Basis Requirements § 830.205 Technical...
Passive containment cooling system
Billig, P.F.; Cooke, F.E.; Fitch, J.R.
1994-01-25
A passive containment cooling system includes a containment vessel surrounding a reactor pressure vessel and defining a drywell therein containing a non-condensable gas. An enclosed wetwell pool is disposed inside the containment vessel, and a gravity driven cooling system (GDCS) pool is disposed above the wetwell pool in the containment vessel and is vented to the drywell. An isolation pool is disposed above the GDCS pool and includes an isolation condenser therein. The condenser has an inlet line disposed in flow communication with the drywell for receiving the non-condensable gas along with any steam released therein following a loss-of-coolant accident (LOCA). The condenser also has an outlet line disposed in flow communication with the drywell for returning to the drywell both liquid condensate produced upon cooling of the steam and the non-condensable gas for reducing pressure within the containment vessel following the LOCA. 1 figure.
Passive containment cooling system
Billig, Paul F.; Cooke, Franklin E.; Fitch, James R.
1994-01-01
A passive containment cooling system includes a containment vessel surrounding a reactor pressure vessel and defining a drywell therein containing a non-condensable gas. An enclosed wetwell pool is disposed inside the containment vessel, and a gravity driven cooling system (GDCS) pool is disposed above the wetwell pool in the containment vessel and is vented to the drywell. An isolation pool is disposed above the GDCS pool and includes an isolation condenser therein. The condenser has an inlet line disposed in flow communication with the drywell for receiving the non-condensable gas along with any steam released therein following a loss-of-coolant accident (LOCA). The condenser also has an outlet line disposed in flow communication with the drywell for returning to the drywell both liquid condensate produced upon cooling of the steam and the non-condensable gas for reducing pressure within the containment vessel following the LOCA.
A Circular Model of Thinking Processes as a Basis of Technical Understanding
ERIC Educational Resources Information Center
Menger, Julia
2010-01-01
Children often experience the influence of technology around them, but there is little emphasis placed on technology within a scientific education in Grundschule (primary schools) in Germany. One of the reasons for this could be a lack of research projects that ascertain young learners' conceptions of technical issues. So there is no basis for…
Analysis of LOCA Scenarios in the NIST Research Reactor Before and After Fuel Conversion
DOE Office of Scientific and Technical Information (OSTI.GOV)
Baek, J. S.; Cheng, L. Y.; Diamond, D.
An analysis has been done of hypothetical loss-of-coolant-accidents (LOCAs) in the research reactor (NBSR) at the National Institute of Standards and Technology (NIST). The purpose of the analysis is to determine if the peak clad temperature remains below the Safety Limit, which is the blister temperature for the fuel. The configuration of the NBSR considered in the analysis is that projected for the future when changes will be made so that shutdown pumps do not operate when a LOCA signal is detected. The analysis was done for the present core with high-enriched uranium (HEU) fuel and with the proposed low-enrichedmore » uranium (LEU) fuel that would be used when the NBSR is converted from one to the other. The analysis consists of two parts. The first examines how the water would drain from the primary system following a break and the possibility for the loss of coolant from within the fuel element flow channels. This work is performed using the TRACE system thermal-hydraulic code. The second looks at the fuel clad temperature as a function of time given that the water may have drained from many of the flow channels and the water in the vessel is in a quasi-equilibrium state. The temperature behavior is investigated using the three-dimensional heat conduction code HEATING7.3. The results in all scenarios considered for both HEU and LEU fuel show that the peak clad temperature remains below the blister temperature.« less
Sensitivity analysis of FeCrAl cladding and U3Si2 fuel under accident conditions
DOE Office of Scientific and Technical Information (OSTI.GOV)
Gamble, Kyle Allan Lawrence; Hales, Jason Dean
2016-08-01
The purpose of this milestone report is to highlight the results of sensitivity analyses performed on two accident tol- erant fuel concepts: U3Si2 fuel and FeCrAl cladding. The BISON fuel performance code under development at Idaho National Laboratory was coupled to Sandia National Laboratories’ DAKOTA software to perform the sensitivity analyses. Both Loss of Coolant (LOCA) and Station blackout (SBO) scenarios were analyzed using main effects studies. The results indicate that for FeCrAl cladding the input parameters with greatest influence on the output metrics of interest (fuel centerline temperature and cladding hoop strain) during the LOCA were the isotropic swellingmore » and fuel enrichment. For U3Si2 the important inputs were found to be the intergranular diffusion coefficient, specific heat, and fuel thermal conductivity. For the SBO scenario, Young’s modulus was found to be influential in FeCrAl in addition to the isotropic swelling and fuel enrichment. Contrarily to the LOCA case, the specific heat of U3Si2 was found to have no effect during the SBO. The intergranular diffusion coefficient and fuel thermal conductivity were still found to be of importance. The results of the sensitivity analyses have identified areas where further research is required including fission gas behavior in U3Si2 and irradiation swelling in FeCrAl. Moreover, the results highlight the need to perform the sensitivity analyses on full length fuel rods for SBO scenarios.« less
Traffic control at stop sign approaches.
DOT National Transportation Integrated Search
2003-04-01
The objectives of this report were to: a) determine the number of crashes in Kentucky involving a driver disregarding a stop sign and the locations where these occur, b) determine the characteristics of these crashes, c) investigate loca tions with a...
DOT National Transportation Integrated Search
2017-01-01
Researchers completed the following activities: - Reviewed the literature, state HSIP processes and practices, and HSIP tools used by various agencies. - Evaluated the applicability of safety assessment methods and tools used by other states and loca...
VHF-FM Emergency Position Indicating Radio Beacon
DOT National Transportation Integrated Search
1978-10-01
This report describes the development and testing of an Emergency Position Indicating Radio Beacon (EPIRB) which operates on Channels 15 and 16 of the Maritime Mobile VHF Band. It provides functions necessary to ensure that distress alerting and loca...
Vehicle kinematics in turns and the role of cornering lamps in driver vision.
DOT National Transportation Integrated Search
2010-11-01
"SAE Recommended Practice J852 and ECE Regulations 119 and 48 for cornering lamps : were compared. Photometric points described in each specification were then compared : to naturalistic low-speed turn trajectories produced by 87 drivers. Future loca...
Collins, Pamela Y; von Unger, Hella; Armbrister, Adria
2008-08-01
Inner city women with severe mental illness may carry multiple stigmatized statuses. In some contexts these include having a mental illness, being a member of an ethnic minority group, being an immigrant, being poor, and being a woman who does not live up to gendered expectations. These potentially stigmatizing identities influence both the way women's sexuality is viewed and their risk for HIV infection. This qualitative study applies the concept of intersectionality to facilitate understanding of how these multiple identities intersect to influence women's sexuality and HIV risk. We report the firsthand accounts of 24 Latina women living with severe mental illness in New York City. In examining the interlocking domains of these women's sexual lives, we find that the women seek identities that define them in opposition to the stigmatizing label of "loca" (Spanish for crazy) and bestow respect and dignity. These identities have unfolded through the additional themes of "good girls" and "church ladies". Therefore, in spite of their association with the "loca", the women also identify with faith and religion ("church ladies") and uphold more traditional gender norms ("good girls") that are often undermined by the realities of life with a severe mental illness and the stigma attached to it. However, the participants fall short of their gender ideals and engage in sexual relationships that they experience as disempowering and unsatisfying. The effects of their multiple identities as poor Latina women living with severe mental illness in an urban ethnic minority community are not always additive, but the interlocking effects can facilitate increased HIV risks. Interventions should acknowledge women's multiple layers of vulnerability, both individual and structural, and stress women's empowerment in and beyond the sexual realm.
Effect of excess dietary salt on calcium metabolism and bone mineral in a spaceflight rat model
NASA Technical Reports Server (NTRS)
Navidi, Meena; Wolinsky, Ira; Fung, Paul; Arnaud, Sara B.
1995-01-01
High levels of salt promote urinary calcium (UCa) loss and have the potential to cause bone mineral deficits if intestinal Ca absorption does not compensate for these losses. To determine the effect of excess dietary salt on the osteopenia that follows skeletal unloading, we used a spaceflight model that unloads the hindlimbs of 200-g rats by tail suspension (S). Rats were studied for 2 wk on diets containing high salt (4 and 8%) and normal calcium (0.45%) and for 4 wk on diets containing 8% salt (HiNa) and 0.2% Ca (LoCa). Final body weights were 9-11% lower in S than in control rats (C) in both experiments, reflecting lower growth rates in S than in C during pair feeding. UCa represented 12% of dietary Ca on HiNA diets and was twofold higher in S than in C transiently during unloading. Net intestinal Ca absorption was consistently 11-18% lower in S than in C. Serum 1,25-dihydroxyvitamin D was unaffected by either LoCa or HiNa diets in S but was increased by LoCa and HiNa diets in C. Despite depressed intestinal Ca absoption in S and a sluggish response of the Ca endocrine system to HiNa diets, UCa loss did not appear to affect the osteopenia induced by unloading. Although any deficit in bone mineral content from HiNa diets may have been too small to detect or the duration of the study too short to manifest, there were clear differences in Ca metabolism from control levels in the response of the spaceflight model to HiNa diets, indicated by depression of intestinal Ca absorption and its regulatory hormone.
Reliability enhancement of APR + diverse protection system regarding common cause failures
DOE Office of Scientific and Technical Information (OSTI.GOV)
Oh, Y. G.; Kim, Y. M.; Yim, H. S.
2012-07-01
The Advanced Power Reactor Plus (APR +) nuclear power plant design has been developed on the basis of the APR1400 (Advanced Power Reactor 1400 MWe) to further enhance safety and economics. For the mitigation of Anticipated Transients Without Scram (ATWS) as well as Common Cause Failures (CCF) within the Plant Protection System (PPS) and the Emergency Safety Feature - Component Control System (ESF-CCS), several design improvement features have been implemented for the Diverse Protection System (DPS) of the APR + plant. As compared to the APR1400 DPS design, the APR + DPS has been designed to provide the Safety Injectionmore » Actuation Signal (SIAS) considering a large break LOCA accident concurrent with the CCF. Additionally several design improvement features, such as channel structure with redundant processing modules, and changes of system communication methods and auto-system test methods, are introduced to enhance the functional reliability of the DPS. Therefore, it is expected that the APR + DPS can provide an enhanced safety and reliability regarding possible CCF in the safety-grade I and C systems as well as the DPS itself. (authors)« less
DOE Office of Scientific and Technical Information (OSTI.GOV)
Yan, Yong; Keiser, James R; Terrani, Kurt A
2014-01-01
Oxidation experiments were conducted at 1200 C in flowing steam with tubing specimens of Zircaloy-4, 317, 347 stainless steels, and the commercial FeCrAl alloy APMT. The purpose was to determine the oxidation behavior and post quench ductility of these alloys under postulated loss-of-coolant accident conditions. The parabolic rate constant for Zircaloy-4 tubing samples at 1200 were determined to be k = 2.173 107 g2/cm4/s C, in excellent agreement with the Cathcart-Pawel correlation. The APMT alloy experienced the slowest oxidation rate among all materials examined in this work. The ductility of post quenched samples was evaluated by ring compression tests atmore » 135 C. For Zircaloy-4, the ductile to brittle transition occurs at an equivalent cladding reacted (ECR) of 19.3%. SS-347 was still ductile after being oxidized for 2400 s (CP-ECR 50%), but the maximum load was reduced significantly owing to the metal layer thickness reduction. No ductility decrease was observed for the post-quenched APMT samples oxidized up to four hours.« less
Spent nuclear fuel canister storage building conceptual design report
DOE Office of Scientific and Technical Information (OSTI.GOV)
Swenson, C.E.
This Conceptual Design Report provides the technical basis for the Spent Nuclear Fuels Project, Canister Storage Building, and as amended by letter (correspondence number 9555700, M.E. Witherspoon to E.B. Sellers, ``Technical Baseline and Updated Cost Estimate for the Canister Storage Building``, dated October 24, 1995), includes the project cost baseline and Criteria to be used as the basis for starting detailed design in fiscal year 1995.
Oxidation of 304 stainless steel in high-temperature steam
NASA Astrophysics Data System (ADS)
Ishida, Toshihisa; Harayama, Yasuo; Yaguchi, Sinnosuke
1986-08-01
An experiment on oxidation of 304 stainless steel was performed in steam between 900°C and 1350°C, using the spare cladding of the reactor of the nuclear-powered ship Mutsu. The temperature range was appropriate for a postulated loss of coolant accident (LOCA) analysis of a LWR. The oxidation kinetics were found to obey the parabolic law during the first period of 8 min. After the first period, the parabolic reaction rate constant decreased in the case of heating temperatures between 1100°C and 1250°C. At 1250°C, especially, a marked decrease was observed in the oxide scale-forming kinetics when the surface treated initially by mechanical polishing and given a residual stress. This enhanced oxidation resistance was attributed to the presence of a chromium-enriched layer which was detected by use of an X-ray microanalyzer. The oxidation kinetics equation obtained for the first 8 min is applicable to the model calculation of a hypothetical LOCA in a LWR, employing 304 stainless steel cladding.
Basic Writing Concepts for Scientists and Engineers.
ERIC Educational Resources Information Center
Mitchell, John H.
1980-01-01
Notes the differences between poetry and technical communication. Charges English teacher/humanists with confusing students about emotional writing, style, and effective technical communication. Offers five concepts that technical writing teachers can use to place "style" on a rational basis and to make students understand the true purposes of…
Parallel Algorithms for Groebner-Basis Reduction
1987-09-25
22209 ELEMENT NO. NO. NO. ACCESSION NO. 11. TITLE (Include Security Classification) * PARALLEL ALGORITHMS FOR GROEBNER -BASIS REDUCTION 12. PERSONAL...All other editions are obsolete. Productivity Engineering in the UNIXt Environment p Parallel Algorithms for Groebner -Basis Reduction Technical Report
The EPA is providing notice of a proposed Administrative Penalty Assessment against Joy Development Properties, LLC and Summit Concrete, Inc., for alleged violations at the companies’ residential construction site known as the Schutter Farms Addition loca
The art in getting flocks and herds to flerds
USDA-ARS?s Scientific Manuscript database
Flerds (small ruminants that consistently stay near cattle under free-ranging conditions) offer four distinct advantages over stocking simply flocks and herds to carry out mixed species stocking. One of the main advantages flerds offer is added protection from canine predation, reduced time in loca...
BESAFE II: Accident safety analysis code for MFE reactor designs
NASA Astrophysics Data System (ADS)
Sevigny, Lawrence Michael
The viability of controlled thermonuclear fusion as an alternative energy source hinges on its desirability from an economic and an environmental and safety standpoint. It is the latter which is the focus of this thesis. For magnetic fusion energy (MFE) devices, the safety concerns equate to a design's behavior during a worst-case accident scenario which is the loss of coolant accident (LOCA). In this dissertation, we examine the behavior of MFE devices during a LOCA and how this behavior relates to the safety characteristics of the machine; in particular the acute, whole-body, early dose. In doing so, we have produced an accident safety code, BESAFE II, now available to the fusion reactor design community. The Appendix constitutes the User's Manual for BESAFE II. The theory behind early dose calculations including the mobilization of activation products is presented in Chapter 2. Since mobilization of activation products is a strong function of temperature, it becomes necessary to calculate the thermal response of a design during a LOCA in order to determine the fraction of the activation products which are mobilized and thus become the source for the dose. The code BESAFE II is designed to determine the temperature history of each region of a design and determine the resulting mobilization of activation products at each point in time during the LOCA. The BESAFE II methodology is discussed in Chapter 4, followed by demonstrations of its use for two reference design cases: a PCA-Li tokamak and a SiC-He tokamak. Of these two cases, it is shown that the SiC-He tokamak is a better design from an accident safety standpoint than the PCA-Li tokamak. It is also found that doses derived from temperature-dependent mobilization data are different than those predicted using set mobilization categories such as those that involve Piet fractions. This demonstrates the need for more experimental data on fusion materials. The possibility for future improvements and modifications to BESAFE II is discussed in Chapter 6, for example, by adding additional environmental indices such as a waste disposal index. The biggest improvement to BESAFE II would be an increase in the database of activation product mobilization for a larger spectrum of fusion reactor materials. The ultimate goal we have is for BESAFE II to become part of a systems design program which would include economic factors and allow both safety and the cost of electricity to influence design.
Technical Basis for Water Chemistry Control of IGSCC in Boiling Water Reactors
NASA Astrophysics Data System (ADS)
Gordon, Barry; Garcia, Susan
Boiling water reactors (BWRs) operate with very high purity water. However, even the utilization of near theoretical conductivity water cannot prevent intergranular stress corrosion cracking (IGSCC) of sensitized stainless steel, wrought nickel alloys and nickel weld metals under oxygenated conditions. IGSCC can be further accelerated by the presence of certain impurities dissolved in the coolant. The goal of this paper is to present the technical basis for controlling various impurities under both oxygenated, i.e., normal water chemistry (NWC) and deoxygenated, i.e., hydrogen water chemistry (HWC) conditions for mitigation of IGSCC. More specifically, the effects of typical BWR ionic impurities (e.g., sulfate, chloride, nitrate, borate, phosphate, etc.) on IGSCC propensities in both NWC and HWC environments will be discussed. The technical basis for zinc addition to the BWR coolant will also provided along with an in-plant example of the most severe water chemistry transient to date.
Chinese Scientific and Technical Information Institutions: Development and Perspective
ERIC Educational Resources Information Center
Yanning, Zheng
2011-01-01
The collection, storage, processing, and dissemination of scientific and technical information make an important basis for economic and social development as well as for scientific development. A nation has to develop the right mechanisms and modalities to collect, store, process, and disseminate scientific and technical information tailored to…
Federal Register 2010, 2011, 2012, 2013, 2014
2012-05-30
... Proposed Information Collection to OMB; Office of Native American Programs (ONAP) Training and Technical.... 552) authorizes HUD to award training and technical assistance contracts on a competitive basis. HUD intends to competitively award training and technical assistance contracts to national and regional...
22 CFR 126.1 - Prohibited exports and sales to certain countries.
Code of Federal Regulations, 2010 CFR
2010-04-01
...-case basis, for supplies of arms and related materials or technical training and assistance intended... Haiti, supplies of arms and related materials for technical training and assistance intended solely for..., defense services or technical data subject to this subchapter may be made to any country referred to in...
Colonialism and Secondary Technical Education in Hong Kong: 1945-1997
ERIC Educational Resources Information Center
Lau, Wai Wah; Kan, Flora
2011-01-01
This study examines the influence of the colonial experience (1945-1997) on the planning of secondary technical education in Hong Kong. Specifically, the origins of secondary technical institutions and their positioning in secondary education are examined. Primary source materials are used as the basis of investigation and analysis, supplemented…
False Memories for Shape Activate the Lateral Occipital Complex
ERIC Educational Resources Information Center
Karanian, Jessica M.; Slotnick, Scott D.
2017-01-01
Previous functional magnetic resonance imaging evidence has shown that false memories arise from higher-level conscious processing regions rather than lower-level sensory processing regions. In the present study, we assessed whether the lateral occipital complex (LOC)--a lower-level conscious shape processing region--was associated with false…
Scientists are increasingly aware of the adverse effects of environmental contaminants, including their ability to alter the normal development and reproduction of wildlife species by modifying the endocrine system. Female mosquitofish living downstream of a paper mill plant loca...
Imaging Near-Earth Electron Densities Using Thomson Scattering
2009-01-15
geocentric solar magnetospheric (GSM) coordinates1. TECs were initially computed from a viewing loca- tion at the Sun-Earth L1 Lagrange point2 for both...further find that an elliptical Earth orbit (apogee ~30 RE) is a suitable lower- cost option for a demonstration mission. 5. SIMULATED OBSERVATIONS We
The Use and Value of Defense Technical Information Center Products and Services.
ERIC Educational Resources Information Center
Roderer, Nancy K.; And Others
This study describes the use and value of the major information products and services provided by the Defense Technical Information Center (DTIC). These products and services include technical report distribution on an on-demand basis and through the Automatic Document Distribution (ADD) program; secondary information dissemination through online…
Developments in Technical Education in the British Caribbean, 1940-60.
ERIC Educational Resources Information Center
Pemberton, S. Macpherson
The paper discusses developments in technical education in the British West Indies from 1940-1960 emphasizing the relation between education and economic development. The objective is to analyze the economic basis of progress in technical education. The document is presented in four chapters. Chapter I summarizes historical background prior to…
A Real-Life Basis for Reports in Business and Technical Writing.
ERIC Educational Resources Information Center
Stephenson, William
1987-01-01
For students who have difficulty finding material for writing formal business and technical reports, suggests keeping a file folder of clippings about new products and services taken from a leading newspaper.(NH)
Technical basis for nuclear accident dosimetry at the Oak Ridge National Laboratory
DOE Office of Scientific and Technical Information (OSTI.GOV)
Kerr, G.D.; Mei, G.T.
The Oak Ridge National Laboratory (ORNL) Environmental, Safety, and Health Emergency Response Organization has the responsibility of providing analyses of personnel exposures to neutrons and gamma rays from a nuclear accident. This report presents the technical and philosophical basis for the dose assessment aspects of the nuclear accident dosimetry (NAD) system at ORNL. The issues addressed are regulatory guidelines, ORNL NAD system components and performance, and the interpretation of dosimetric information that would be gathered following a nuclear accident.
RELEASE OF DRIED RADIOACTIVE WASTE MATERIALS TECHNICAL BASIS DOCUMENT
DOE Office of Scientific and Technical Information (OSTI.GOV)
KOZLOWSKI, S.D.
2007-05-30
This technical basis document was developed to support RPP-23429, Preliminary Documented Safety Analysis for the Demonstration Bulk Vitrification System (PDSA) and RPP-23479, Preliminary Documented Safety Analysis for the Contact-Handled Transuranic Mixed (CH-TRUM) Waste Facility. The main document describes the risk binning process and the technical basis for assigning risk bins to the representative accidents involving the release of dried radioactive waste materials from the Demonstration Bulk Vitrification System (DBVS) and to the associated represented hazardous conditions. Appendices D through F provide the technical basis for assigning risk bins to the representative dried waste release accident and associated represented hazardous conditionsmore » for the Contact-Handled Transuranic Mixed (CH-TRUM) Waste Packaging Unit (WPU). The risk binning process uses an evaluation of the frequency and consequence of a given representative accident or represented hazardous condition to determine the need for safety structures, systems, and components (SSC) and technical safety requirement (TSR)-level controls. A representative accident or a represented hazardous condition is assigned to a risk bin based on the potential radiological and toxicological consequences to the public and the collocated worker. Note that the risk binning process is not applied to facility workers because credible hazardous conditions with the potential for significant facility worker consequences are considered for safety-significant SSCs and/or TSR-level controls regardless of their estimated frequency. The controls for protection of the facility workers are described in RPP-23429 and RPP-23479. Determination of the need for safety-class SSCs was performed in accordance with DOE-STD-3009-94, Preparation Guide for US. Department of Energy Nonreactor Nuclear Facility Documented Safety Analyses, as described below.« less
47 CFR 90.763 - EA, Regional and nationwide system operations.
Code of Federal Regulations, 2010 CFR
2010-10-01
... on a case-by-case basis upon submission by the EA or Regional licensee of: (A) A technical analysis... by a licensee or the Commission, an EA or regional licensee shall furnish the technical parameters...
Technical basis for external dosimetry at the Waste Isolation Pilot Plant (WIPP)
DOE Office of Scientific and Technical Information (OSTI.GOV)
Bradley, E.W.; Wu, C.F.; Goff, T.E.
1993-12-31
The WIPP External Dosimetry Program, administered by Westinghouse Electric Corporation, Waste Isolation Division, for the US Department of Energy (DOE), provides external dosimetry support services for operations at the Waste Isolation Pilot Plant (WIPP) Site. These operations include the receipt, experimentation with, storage, and disposal of transuranic (TRU) wastes. This document describes the technical basis for the WIPP External Radiation Dosimetry Program. The purposes of this document are to: (1) provide assurance that the WIPP External Radiation Dosimetry Program is in compliance with all regulatory requirements, (2) provide assurance that the WIPP External Radiation Dosimetry Program is derived from amore » sound technical base, (3) serve as a technical reference for radiation protection personnel, and (4) aid in identifying and planning for future needs. The external radiation exposure fields are those that are documented in the WIPP Final Safety Analysis Report.« less
1981-07-01
ie "n.: r c:.t. ’ur wn Le r":2- ence Indistes :nac pole a n :arc loca- 40 ":Lors !AVe a sinificant effect n convergence raes.- .ahdn te poles and...LATTICE ALGORITHMS ( LADO ) 1. The Normalized AR Lattice (ARN) This algorithm implements the normalized algorithm described in [23]. The AR coefficients are
DOE Office of Scientific and Technical Information (OSTI.GOV)
Hamm, L.L.
1998-10-07
This report is one of a series of reports documenting accident scenario simulations for the Accelerator Production of Tritium (APT) blanket heat removal systems. The simulations were performed in support of the Preliminary Safety Analysis Report (PSAR) for the APT.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Hamm, L.L.
1998-10-07
This report is one of a series of reports that document normal operation and accident simulations for the Accelerator Production of Tritium (APT) blanket heat removal (HR) system. These simulations were performed for the Preliminary Safety Analysis Report.
USDA-ARS?s Scientific Manuscript database
Lightness (CIELAB L*) and pH values are the most widely measured quality indicators for broiler breast fillets (pectoralis major). Measurement of L* values with a spectrophotometer can be done through Specular Component Included (SCI) or Specular Component Excluded (SCE) modes. The intra-fillet loca...
USDA-ARS?s Scientific Manuscript database
Chromosomal rearrangements between sympatric species often contain multiple loci contributing to assortative mating, local adaptation, and hybrid sterility. When and how these associations arise during the process of speciation remains a subject of debate. Here, we address the relative roles of loca...
NASA Astrophysics Data System (ADS)
Shriwastaw, R. S.; Sawarn, Tapan K.; Banerjee, Suparna; Rath, B. N.; Dubey, J. S.; Kumar, Sunil; Singh, J. L.; Bhasin, Vivek
2017-09-01
The present study involves the estimation of ring tensile properties of Indian Pressurised Heavy Water Reactor (IPHWR) fuel cladding made of Zircaloy-4, subjected to experiments under a simulated loss-of-coolant-accident (LOCA) condition. Isothermal steam oxidation experiments were conducted on clad tube specimens at temperatures ranging from 900 to 1200 °C at an interval of 50 °C for different soaking periods with subsequent quenching in water at ambient temperature. The specimens, which survived quenching, were then subjected to ambient temperature ring tension test (RTT). The microstructure was correlated with the mechanical properties. The yield strength (YS) and ultimate tensile strength (UTS) increased initially with rise in oxidation temperature and time duration but then decreased with further increase in oxidation. Ductility is adversely affected with rising oxidation temperature and longer holding time. A higher fraction of load bearing phase and lower oxygen content in it ensures higher residual ductility. Cladding shows almost zero ductility behavior in RIT when load bearing phase fraction is less than 0.72 and its average oxygen concentration is greater than 0.58 wt%.
Radiological dose in Muria peninsula from SB-LOCA event
NASA Astrophysics Data System (ADS)
Sunarko; Suud, Zaki
2017-01-01
Dose assessment for accident condition is performed for Muria Peninsula region using source-term from Three-Mile Island unit 2 SB-LOCA accident. Xe-133, Kr-88, 1-131 and Cs-137 isotopes are considered in the calculation. The effluent is assumed to be released from a 50 m stack. Lagrangian particle dispersion method (LPDM) employing non-Gaussian dispersion coefficient in 3-dimensional mass-consistent wind-field is employed to obtain periodic surface-level concentration which is then time-integrated to obtain spatial distribution of ground-level dose. In 1-hour simulation, segmented plumes with 60 seconds duration with a total of 18.000 particles involved. Simulations using 6-hour worst-case meteorological data from Muria peninsula results in a peak external dose of around 1.668 mSv for low scenario and 6.892 mSv for high scenario in dry condition. In wet condition with 5 mm/hour and 10 mm/hour rain for the whole duration of the simulation provides only minor effect to dose. The peak external dose is below the regulatory limit of 50 mSv for effective skin dose from external gamma exposure.
ERIC Educational Resources Information Center
Grabe, Sven
This paper is intended to serve as the basis for discussion of the scope and place of environmental education in technical and vocational education. It is addressed primarily to administrators, curriculum developers, and other active participants in the definition of scope and content of technical and vocational courses. After a brief introduction…
DOE Office of Scientific and Technical Information (OSTI.GOV)
Locke, G.L.
1958-09-08
The design basis is composed of requirements and conditions for the design of the reactor plant (composed of the reactor and heat dissipation system). Its intent is to insure that the final product meets the economic, safety, and technical objectives of the project. The design basis is dependent on the ground rules, objectives, technical criteria, and practical design considerations. This document is being issued with the understanding that these items are not yet firmly established in all respects, and therefore, the numbers put down here are subject to change. Consideration of the spectrum of probable changes that might be mademore » leads to the conclusion that the numbers here are close to the final ones and are satisfactory as a basis for the initial stages of design. Some numbers are omitted because of insufficient data at this time.« less
32 CFR 37.420 - Should I tell proposers that we will not disclose information that they submit?
Code of Federal Regulations, 2010 CFR
2010-07-01
... documents; and (ii) Business plans and technical information submitted on a confidential basis. (c) If proposers desire to protect business plans and technical information for five years from FOIA disclosure...
ERIC Educational Resources Information Center
Dupuis, Phyllis A.
2009-01-01
Popular thought supports the notion that faculty expectations of technical college administrators appear to be linked to the success or failure of an institution at accomplishing its mission. These expectations provide the basis for the development of relationships that foster the growth of technical training and thus the growth of a skilled…
Strategic Mobility 21 Technical Plan
2006-09-06
or grant. b. Technical documents with this statement may be made available or sold to the public and foreign nationals, companies, and governments ...including adversary governments , and may be exported. c. This statement may not be used on technical documents that formerly were classified...Transportation Technologies (CCDOTT), a government -industry academic collaborative enterprise. 2 Dual-use technology serves as a basis for both
ERIC Educational Resources Information Center
Iwamoto, Muneharu
In the course of Japan's economic progress, remarkable changes have occurred in the structure of industry and employment. Workers are in extremely short supply in such occupations as mining, manufacturing and construction, services, transportation and communication, sales, and professional and technical. On the basis of recommendations of the…
Federal Register 2010, 2011, 2012, 2013, 2014
2010-09-09
... that the staff uses in evaluating specific problems or postulated accidents, and data that the staff... turbine missiles. NUREG/CR 7004 is the technical basis for regulatory guidance on design-basis hurricane... hurricane wind speeds for new nuclear power plants. [[Page 54919
47 CFR 51.307 - Duty to provide access on an unbundled basis to network elements.
Code of Federal Regulations, 2010 CFR
2010-10-01
... network elements. 51.307 Section 51.307 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED... Carriers § 51.307 Duty to provide access on an unbundled basis to network elements. (a) An incumbent LEC... service, nondiscriminatory access to network elements on an unbundled basis at any technically feasible...
47 CFR 51.307 - Duty to provide access on an unbundled basis to network elements.
Code of Federal Regulations, 2011 CFR
2011-10-01
... network elements. 51.307 Section 51.307 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED... Carriers § 51.307 Duty to provide access on an unbundled basis to network elements. (a) An incumbent LEC... service, nondiscriminatory access to network elements on an unbundled basis at any technically feasible...
Technical indicators of economic performance in dairy sheep farming.
Theodoridis, A; Ragkos, A; Roustemis, D; Arsenos, G; Abas, Z; Sinapis, E
2014-01-01
In this study, the level of technical efficiency of 58 sheep farms rearing the Chios breed in Greece was measured through the application of the stochastic frontier analysis method. A Translog stochastic frontier production function was estimated using farm accounting data of Chios sheep farms and the impact of various socio-demographic and biophysical factors on the estimated efficiency of the farms was evaluated. The farms were classified into efficiency groups on the basis of the estimated level of efficiency and a technical and economic descriptive analysis was applied in order to illustrate an indicative picture of their structure and productivity. The results of the stochastic frontier model indicate that there are substantial production inefficiencies among the Chios sheep farms and that these farms could increase their production through the improvement of technical efficiency, whereas the results of the inefficiency effects model reveal that the farm-specific explanatory factors can partly explain the observed efficiency differentials. The measurement of technical inefficiency and the detection of its determinants can be used to form the basis of policy recommendations that could contribute to the development of the sector.
NASA's Lessons Learned and Technical Standards: A Logical Marriage
NASA Technical Reports Server (NTRS)
Gill, Paul; Vaughan, William W.; Garcia, Danny; Weinstein, Richard
2001-01-01
Lessons Learned have been the basis for our accomplishments throughout the ages. They have been passed down from father to son, mother to daughter, teacher to pupil, and older to younger worker. Lessons Learned have also been the basis for NASA's accomplishments for more than forty years. Both government and industry have long recognized the need to systematically document and utilize the knowledge gained from past experiences in order to avoid the repetition of failures and mishaps. Lessons Learned have formed the foundation for discoveries, inventions, improvements, textbooks, and Technical Standards.
Manpower Requirements Report for FY 1982
1981-02-01
Specifically included are program elements for industrial preparedness, second destination transportation, property disposal, production engineering ...artillery, and combat - engineers . Army policy accepts the fact that women will serve in loca- .. tions throughout the battlefield, will be expected to... industrial engineering work measurement techniques and computerized models such as the Logistics Composite Model (LCOM). MEP policy emanates from the
USDA-ARS?s Scientific Manuscript database
Mitochondrial ATPase/Complex-V (MCV) is an electron transport chain (ETC) component needed for ATP synthesis. The ETC, exquisitely sensitive to proinflammatory mediators (PIM), generates oxynitrogen reactants leading to pTN formation as mitochondrial membrane leakage occurs. Immunohistochemical loca...
USDA-ARS?s Scientific Manuscript database
Spot form net blotch (SFNB) caused by Pyrenophora teres Drechs. f. maculata Smedeg., (anamorph Drechslera teres [Sacc.] Shoem.) is a major foliar disease of barley (Hordeum vulgare L.) worldwide. SFNB epidemics have recently been observed in major barley producing countries, suggesting that the loca...
Modern Data Analysis techniques in Noise and Vibration Problems
1981-11-01
Hilbert l’une de l’autre. Cette propriete se retrouve dans l’etude de la causalite : ce qui de- finit un critere pratique caracterisant un signal donc, par...entre Ie champ direct et Ie champ reflechi se caracterisent loca- lement par l’existence de frequences pour lesquelles l’interference est totale
Patient to Health Team Communications Preferences and Perceptions of Secure Messaging
2017-04-25
Ellicott C itv MD, 25- 27 April 2017 in accordance with MDWI 4 1- 108, has been approved and assigned loca l fi le # 17202. 2. Pe11 inent biographic...scholarl y activities o f our professional staff and students, which is an essential component of Wi lford Hall Ambulatory Surgical Center (WHASC
10 CFR 603.420 - Disclosure of information.
Code of Federal Regulations, 2010 CFR
2010-01-01
... types that are exempt: (i) Proposals, proposal abstracts, and supporting documents; and (ii) Business plans and technical information submitted on a confidential basis. (c) If proposers desire to protect business plans and technical information for five years from FOIA disclosure requirements, they must mark...
10 CFR 63.114 - Requirements for performance assessment.
Code of Federal Regulations, 2014 CFR
2014-01-01
... GEOLOGIC REPOSITORY AT YUCCA MOUNTAIN, NEVADA Technical Criteria Postclosure Performance Assessment § 63..., hydrology, and geochemistry (including disruptive processes and events) of the Yucca Mountain site, and the... disposal, and provide for the technical basis for parameter ranges, probability distributions, or bounding...
10 CFR 63.114 - Requirements for performance assessment.
Code of Federal Regulations, 2013 CFR
2013-01-01
... GEOLOGIC REPOSITORY AT YUCCA MOUNTAIN, NEVADA Technical Criteria Postclosure Performance Assessment § 63..., hydrology, and geochemistry (including disruptive processes and events) of the Yucca Mountain site, and the... disposal, and provide for the technical basis for parameter ranges, probability distributions, or bounding...
10 CFR 63.114 - Requirements for performance assessment.
Code of Federal Regulations, 2012 CFR
2012-01-01
... GEOLOGIC REPOSITORY AT YUCCA MOUNTAIN, NEVADA Technical Criteria Postclosure Performance Assessment § 63..., hydrology, and geochemistry (including disruptive processes and events) of the Yucca Mountain site, and the... disposal, and provide for the technical basis for parameter ranges, probability distributions, or bounding...
10 CFR 63.114 - Requirements for performance assessment.
Code of Federal Regulations, 2011 CFR
2011-01-01
... GEOLOGIC REPOSITORY AT YUCCA MOUNTAIN, NEVADA Technical Criteria Postclosure Performance Assessment § 63..., hydrology, and geochemistry (including disruptive processes and events) of the Yucca Mountain site, and the... disposal, and provide for the technical basis for parameter ranges, probability distributions, or bounding...
10 CFR 63.114 - Requirements for performance assessment.
Code of Federal Regulations, 2010 CFR
2010-01-01
... GEOLOGIC REPOSITORY AT YUCCA MOUNTAIN, NEVADA Technical Criteria Postclosure Performance Assessment § 63..., hydrology, and geochemistry (including disruptive processes and events) of the Yucca Mountain site, and the... disposal, and provide for the technical basis for parameter ranges, probability distributions, or bounding...
NASA Technical Reports Server (NTRS)
1986-01-01
An agreement between the government of the Federal Republic of Germany and the government of the Union of Soviet Socialist Republics concerning scientific technical cooperation is disclosed. The parties to the treaty agree to promote scientific and technical cooperation on a basis of equality, reciprocity and mutual advantage.
Method of identification of patent trends based on descriptions of technical functions
NASA Astrophysics Data System (ADS)
Korobkin, D. M.; Fomenkov, S. A.; Golovanchikov, A. B.
2018-05-01
The use of the global patent space to determine the scientific and technological priorities for the technical systems development (identifying patent trends) allows one to forecast the direction of the technical systems development and, accordingly, select patents of priority technical subjects as a source for updating the technical functions database and physical effects database. The authors propose an original method that uses as trend terms not individual unigrams or n-gram (usually for existing methods and systems), but structured descriptions of technical functions in the form “Subject-Action-Object” (SAO), which in the authors’ opinion are the basis of the invention.
Severe Accident Scoping Simulations of Accident Tolerant Fuel Concepts for BWRs
DOE Office of Scientific and Technical Information (OSTI.GOV)
Robb, Kevin R.
2015-08-01
Accident-tolerant fuels (ATFs) are fuels and/or cladding that, in comparison with the standard uranium dioxide Zircaloy system, can tolerate loss of active cooling in the core for a considerably longer time period while maintaining or improving the fuel performance during normal operations [1]. It is important to note that the currently used uranium dioxide Zircaloy fuel system tolerates design basis accidents (and anticipated operational occurrences and normal operation) as prescribed by the US Nuclear Regulatory Commission. Previously, preliminary simulations of the plant response have been performed under a range of accident scenarios using various ATF cladding concepts and fully ceramicmore » microencapsulated fuel. Design basis loss of coolant accidents (LOCAs) and station blackout (SBO) severe accidents were analyzed at Oak Ridge National Laboratory (ORNL) for boiling water reactors (BWRs) [2]. Researchers have investigated the effects of thermal conductivity on design basis accidents [3], investigated silicon carbide (SiC) cladding [4], as well as the effects of ATF concepts on the late stage accident progression [5]. These preliminary analyses were performed to provide initial insight into the possible improvements that ATF concepts could provide and to identify issues with respect to modeling ATF concepts. More recently, preliminary analyses for a range of ATF concepts have been evaluated internationally for LOCA and severe accident scenarios for the Chinese CPR1000 [6] and the South Korean OPR-1000 [7] pressurized water reactors (PWRs). In addition to these scoping studies, a common methodology and set of performance metrics were developed to compare and support prioritizing ATF concepts [8]. A proposed ATF concept is based on iron-chromium-aluminum alloys (FeCrAl) [9]. With respect to enhancing accident tolerance, FeCrAl alloys have substantially slower oxidation kinetics compared to the zirconium alloys typically employed. During a severe accident, FeCrAl would tend to generate heat and hydrogen from oxidation at a slower rate compared to the zirconium-based alloys in use today. The previous study, [2], of the FeCrAl ATF concept during station blackout (SBO) severe accident scenarios in BWRs was based on simulating short term SBO (STSBO), long term SBO (LTSBO), and modified SBO scenarios occurring in a BWR-4 reactor with MARK-I containment. The analysis indicated that FeCrAl had the potential to delay the onset of fuel failure by a few hours depending on the scenario, and it could delay lower head failure by several hours. The analysis demonstrated reduced in-vessel hydrogen production. However, the work was preliminary and was based on limited knowledge of material properties for FeCrAl. Limitations of the MELCOR code were identified for direct use in modeling ATF concepts. This effort used an older version of MELCOR (1.8.5). Since these analyses, the BWR model has been updated for use in MELCOR 1.8.6 [10], and more representative material properties for FeCrAl have been modeled. Sections 2 4 present updated analyses for the FeCrAl ATF concept response during severe accidents in a BWR. The purpose of the study is to estimate the potential gains afforded by the FeCrAl ATF concept during BWR SBO scenarios.« less
44 CFR 67.6 - Basis of appeal.
Code of Federal Regulations, 2014 CFR
2014-10-01
... technically incorrect. Because scientific and technical correctness is often a matter of degree rather than...), appellants are required to demonstrate that alternative methods or applications result in more correct... due to error in application of hydrologic, hydraulic or other methods or use of inferior data in...
44 CFR 67.6 - Basis of appeal.
Code of Federal Regulations, 2012 CFR
2012-10-01
... technically incorrect. Because scientific and technical correctness is often a matter of degree rather than...), appellants are required to demonstrate that alternative methods or applications result in more correct... due to error in application of hydrologic, hydraulic or other methods or use of inferior data in...
44 CFR 67.6 - Basis of appeal.
Code of Federal Regulations, 2013 CFR
2013-10-01
... technically incorrect. Because scientific and technical correctness is often a matter of degree rather than...), appellants are required to demonstrate that alternative methods or applications result in more correct... due to error in application of hydrologic, hydraulic or other methods or use of inferior data in...
44 CFR 67.6 - Basis of appeal.
Code of Federal Regulations, 2011 CFR
2011-10-01
... technically incorrect. Because scientific and technical correctness is often a matter of degree rather than...), appellants are required to demonstrate that alternative methods or applications result in more correct... due to error in application of hydrologic, hydraulic or other methods or use of inferior data in...
Klooster, D C W; de Louw, A J A; Aldenkamp, A P; Besseling, R M H; Mestrom, R M C; Carrette, S; Zinger, S; Bergmans, J W M; Mess, W H; Vonck, K; Carrette, E; Breuer, L E M; Bernas, A; Tijhuis, A G; Boon, P
2016-06-01
Neuromodulation is a field of science, medicine, and bioengineering that encompasses implantable and non-implantable technologies for the purpose of improving quality of life and functioning of humans. Brain neuromodulation involves different neurostimulation techniques: transcranial magnetic stimulation (TMS), transcranial direct current stimulation (tDCS), vagus nerve stimulation (VNS), and deep brain stimulation (DBS), which are being used both to study their effects on cognitive brain functions and to treat neuropsychiatric disorders. The mechanisms of action of neurostimulation remain incompletely understood. Insight into the technical basis of neurostimulation might be a first step towards a more profound understanding of these mechanisms, which might lead to improved clinical outcome and therapeutic potential. This review provides an overview of the technical basis of neurostimulation focusing on the equipment, the present understanding of induced electric fields, and the stimulation protocols. The review is written from a technical perspective aimed at supporting the use of neurostimulation in clinical practice. Copyright © 2016 Elsevier Ltd. All rights reserved.
Internal dosimetry technical basis manual
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
1990-12-20
The internal dosimetry program at the Savannah River Site (SRS) consists of radiation protection programs and activities used to detect and evaluate intakes of radioactive material by radiation workers. Examples of such programs are: air monitoring; surface contamination monitoring; personal contamination surveys; radiobioassay; and dose assessment. The objectives of the internal dosimetry program are to demonstrate that the workplace is under control and that workers are not being exposed to radioactive material, and to detect and assess inadvertent intakes in the workplace. The Savannah River Site Internal Dosimetry Technical Basis Manual (TBM) is intended to provide a technical and philosophicalmore » discussion of the radiobioassay and dose assessment aspects of the internal dosimetry program. Detailed information on air, surface, and personal contamination surveillance programs is not given in this manual except for how these programs interface with routine and special bioassay programs.« less
FLAMMABLE GAS TECHNICAL BASIS DOCUMENT
DOE Office of Scientific and Technical Information (OSTI.GOV)
KRIPPS, L.J.
2005-02-18
This document describes the qualitative evaluation of frequency and consequences for double shell tank (DST) and single shell tank (SST) representative flammable gas accidents and associated hazardous conditions without controls. The evaluation indicated that safety-significant SSCs and/or TSRS were required to prevent or mitigate flammable gas accidents. Discussion on the resulting control decisions is included. This technical basis document was developed to support of the Tank Farms Documented Safety Analysis (DSA) and describes the risk binning process for the flammable gas representative accidents and associated represented hazardous conditions. The purpose of the risk binning process is to determine the needmore » for safety-significant structures, systems, and components (SSC) and technical safety requirement (TSR)-level controls for a given representative accident or represented hazardous condition based on an evaluation of the event frequency and consequence.« less
Presentation to U.S.-Canada Bilateral Technical Working Group
DHS and EPA have collaborated in the development of a draft charter for Technical Working Group (TWG) to serve as the basis of negotiations of bilateral agreements with other countries. The TWG would provide a mechanism for sharing both response and R&D expertise and experience i...
40 CFR 40.150 - Evaluation of applications.
Code of Federal Regulations, 2011 CFR
2011-07-01
.... Relevancy, coupled with the results of technical review, will provide the basis for funding recommendations... will be reviewed for technical merit by at least one reviewer within EPA and at least two reviewers.... Recommendations for continuation of funding will be based on progress toward the accomplishment of the goals set...
Project DIVIDE Instrument Development. Technical Report # 0810
ERIC Educational Resources Information Center
Ketterlin-Geller, Leanne; Jung, Eunju; Geller, Josh; Yovanoff, Paul
2008-01-01
In this technical report, we describe the development of cognitive diagnostic test items that form the basis of the diagnostic system for Project DIVIDE (Dynamic Instruction Via Individually Designed Environments). The construct underlying the diagnostic test is division of fractions. We include a description of the process we used to identify the…
Customisation of an instrument to assess anaesthesiologists' non-technical skills.
Jepsen, Rikke M H G; Spanager, Lene; Lyk-Jensen, Helle T; Dieckmann, Peter; Østergaard, Doris
2015-02-22
The objectives of the study were to identify Danish anaesthesiologists' non-technical skills and to customise the Scottish-developed Anaesthetists' Non-Technical Skills instrument for Danish anaesthesiologists. Six semi-structured group interviews were conducted with 31 operating room team members: anaes-thesiologists, nurse anaesthetists, surgeons, and scrub nurses. Interviews were transcribed verbatim and analysed using directed content analysis. Anaesthesiologists' non-technical skills were identified, coded, and sorted using the original instrument as a basis. The resulting prototype instrument was discussed with anaesthesiologists from 17 centres to ensure face validity. Interviews lasted 46-67 minutes. Identified examples of anaesthesiologists' good or poor non-technical skills fit the four categories in the original instrument: situation awareness; decision making; team working; and task management. Anaesthesiologists' leadership role in the operating room was emphasised: the original 'Task Management' category was named 'Leadership'. One new element, 'Demonstrating self-awareness' was added under the category 'Situation Awareness'. Compared with the original instrument, half of the behavioural markers were new, which reflected that being aware of and communicating one's own abilities to the team; working systematically; and speaking up to avoid adverse events were important skills. The Anaesthetists' Non-Technical Skills instrument was customised to a Danish setting using the identified non-technical skills for anaesthesiologists and the original instrument as basis. The customised instrument comprises four categories and 16 underpinning elements supported by multiple behavioural markers. Identifying non-technical skills through semi-structured group interviews and analysing them using direct content analysis proved a useful method for customising an assessment instrument to another setting.
2011-01-01
myopia often leads otherwise competent observers to under estimate significantly the new technology’s potential. Two business examples stand out: in...direction. With precision of effect combined with precision of impact, bloodless war becomes a reality . To this point, we have tried to make the...against virtually all of the centers of gravity directly related to strategic objectives, regardless of their loca tion. Because it can bring many
Technical and economic assessment of processes for the production of butanol and acetone
NASA Technical Reports Server (NTRS)
1982-01-01
This report represents a preliminary technical and economic evaluation of a process which produces mixed solvents (butaol/acetone/ethanol) via fermentation of sugars derived from renewable biomass resources. The objective is to assess the technology of producing butanol/acetone from biomass, and select a viable process capable of serving as a base case model for technical and economic analysis. It is anticipated that the base case process developed herein can then be used as the basis for subsequent studies concerning biomass conversion processes capable of producing a wide range of chemicals. The general criteria utilized in determining the design basis for the process are profit potential and non-renewable energy displacement potential. The feedstock chosen, aspen wood, was selected from a number of potential renewable biomass resources as the most readily available in the United States and for its relatively large potential for producing reducing sugars.
Potential for cogeneration of heat and electricity in California industry, phase 1
NASA Technical Reports Server (NTRS)
Davis, H. S.; Gurfield, R. M.; Moretti, V. C.; Slonski, M. L.
1978-01-01
Information collected during an industrial survey of 12 selected plants was organized into four categories: technical, economic, environmental, and institutional. The technical aspects of industrial cogeneration are examined on a site-specific basis. The site-specific economics, environmental constraints, and institutional barriers that impact industrial cogeneration will be further investigated.
Aquifer recharge (AR) is a technical method being utilized to enhance groundwater resources through man-made replenishment means, such as infiltration basins and injections wells. Aquifer storage and recovery (ASR) furthers the AR techniques by withdrawal of stored groundwater at...
From Industry to Teaching: The Quality Instruction Program at Hocking Technical College.
ERIC Educational Resources Information Center
Moran, Ralph; And Others
This presentation on Hocking Technical College's (HTC's) Quality Instruction Program (QIP) provides a program description and comments from three HTC faculty members who have been involved in the program in various ways. Recognizing that many faculty members are hired on the basis of their industrial credentials rather than their teaching…
ERIC Educational Resources Information Center
Ohio State Dept. of Education, Columbus. Div. of Career-Technical and Adult Education.
This document presents the Ohio Integrated Technical and Academic Competency profile for marketing technology. The profile is to serve as the basis for curriculum development in Ohio's secondary, adult, and postsecondary programs. The profile includes a comprehensive listing of 580 specialty and foundation key indicators for evaluating mastery of…
A Critical Review of the Technical Characteristics of Current Preschool Screening Batteries
ERIC Educational Resources Information Center
Emmons, Michael R.; Alfonso, Vincent C.
2005-01-01
The current review provides a summary and evaluation of the technical characteristics of five preschool screening batteries, including the Brigance Screens, DIAL-3, ESI-R, ESP, and FirstSTEP. These norm-referenced instruments were selected on the basis of their commercial availability, description as a screening instrument, and ability to assess…
A consumer guide: tools to manage vegetation and fuels.
David L. Peterson; Louisa Evers; Rebecca A. Gravenmier; Ellen Eberhardt
2007-01-01
Current efforts to improve the scientific basis for fire management on public lands will benefit from more efficient transfer of technical information and tools that support planning, implementation, and effectiveness of vegetation and hazardous fuel treatments. The technical scope, complexity, and relevant spatial scale of analytical and decision support tools differ...
Engineer's Needs for Scientific and Technical Information.
ERIC Educational Resources Information Center
David, A., Ed.; And Others
This study has as its main object the formulation of an approach, as global and comprehensive as possible, to the multiple aspects of the engineer's needs for scientific and technical information. The basis of the study is an analysis of the engineer's role, its characteristics, different specialties, levels of training, and categories of…
How to Recognize a Quality Technical Education Program.
ERIC Educational Resources Information Center
Doty, Charles R.
Criteria for the evaluation of quality technical educational programs must be identified if follow-up studies are to be effective. Current research shows that problems in the development of such criteria include the tendency to evaluate programs on the basis of organizational structure rather than on the quality of the instructional program…
Technical Basis for Electromagnetic Compatibility Regulatory Guidance Update
DOE Office of Scientific and Technical Information (OSTI.GOV)
Ewing, Paul D.; Korsah, Kofi; Harrison, Thomas J.
2016-03-01
The objective of this report is to serve as the technical basis document for the next, planned revision of this RG that highlights and provides the rationale for the recommended changes. The structure of this document follows and summarizes the several assessment activities undertaken during the course of this project to evaluate new and updated electromagnetic compatibility (EMC) standards, testing methods and limits, and relevant technology developments being incorporated into plant activities that may have EMI/RFI implications, as well as other specific issues, including impacts of electrostatic discharge (ESD) on safety equipment and impacts on increased usage of wireless devicesmore » in nuclear power plants.« less
BASiCS: Bayesian Analysis of Single-Cell Sequencing Data
Vallejos, Catalina A.; Marioni, John C.; Richardson, Sylvia
2015-01-01
Single-cell mRNA sequencing can uncover novel cell-to-cell heterogeneity in gene expression levels in seemingly homogeneous populations of cells. However, these experiments are prone to high levels of unexplained technical noise, creating new challenges for identifying genes that show genuine heterogeneous expression within the population of cells under study. BASiCS (Bayesian Analysis of Single-Cell Sequencing data) is an integrated Bayesian hierarchical model where: (i) cell-specific normalisation constants are estimated as part of the model parameters, (ii) technical variability is quantified based on spike-in genes that are artificially introduced to each analysed cell’s lysate and (iii) the total variability of the expression counts is decomposed into technical and biological components. BASiCS also provides an intuitive detection criterion for highly (or lowly) variable genes within the population of cells under study. This is formalised by means of tail posterior probabilities associated to high (or low) biological cell-to-cell variance contributions, quantities that can be easily interpreted by users. We demonstrate our method using gene expression measurements from mouse Embryonic Stem Cells. Cross-validation and meaningful enrichment of gene ontology categories within genes classified as highly (or lowly) variable supports the efficacy of our approach. PMID:26107944
BASiCS: Bayesian Analysis of Single-Cell Sequencing Data.
Vallejos, Catalina A; Marioni, John C; Richardson, Sylvia
2015-06-01
Single-cell mRNA sequencing can uncover novel cell-to-cell heterogeneity in gene expression levels in seemingly homogeneous populations of cells. However, these experiments are prone to high levels of unexplained technical noise, creating new challenges for identifying genes that show genuine heterogeneous expression within the population of cells under study. BASiCS (Bayesian Analysis of Single-Cell Sequencing data) is an integrated Bayesian hierarchical model where: (i) cell-specific normalisation constants are estimated as part of the model parameters, (ii) technical variability is quantified based on spike-in genes that are artificially introduced to each analysed cell's lysate and (iii) the total variability of the expression counts is decomposed into technical and biological components. BASiCS also provides an intuitive detection criterion for highly (or lowly) variable genes within the population of cells under study. This is formalised by means of tail posterior probabilities associated to high (or low) biological cell-to-cell variance contributions, quantities that can be easily interpreted by users. We demonstrate our method using gene expression measurements from mouse Embryonic Stem Cells. Cross-validation and meaningful enrichment of gene ontology categories within genes classified as highly (or lowly) variable supports the efficacy of our approach.
Technical Support Document for Version 3.6.1 of the COMcheck Software
DOE Office of Scientific and Technical Information (OSTI.GOV)
Bartlett, Rosemarie; Connell, Linda M.; Gowri, Krishnan
2009-09-29
This technical support document (TSD) is designed to explain the technical basis for the COMcheck software as originally developed based on the ANSI/ASHRAE/IES Standard 90.1-1989 (Standard 90.1-1989). Documentation for other national model codes and standards and specific state energy codes supported in COMcheck has been added to this report as appendices. These appendices are intended to provide technical documentation for features specific to the supported codes and for any changes made for state-specific codes that differ from the standard features that support compliance with the national model codes and standards.
Byun, Thak Sang; Yamamoto, Yukinori; Maloy, Stuart A.; ...
2015-08-25
Here, one of the most essential properties of accident tolerant fuel (ATF) for maintaining structural integrity during a loss-of-coolant accident (LOCA) is high resistance of the cladding to plastic deformation and burst failure, since the deformation and burst behavior governs the cooling efficiency of flow channels and the process of fission product release. To simulate and evaluate the deformation and burst process of thin-walled cladding, an in-situ testing and evaluation method has been developed on the basis of visual imaging and image analysis techniques. The method uses a specialized optics system consisting of a high-resolution video camera, a light filteringmore » unit, and monochromatic light sources. The in-situ testing is performed using a 50 mm long pressurized thin-walled tubular specimen set in a programmable furnace. As the first application, ten (10) candidate cladding materials for ATF, i.e., five FeCrAl alloys and five nanostructured steels, were tested using the newly developed method, and the time-dependent images were analyzed to produce detailed deformation and burst data such as true hoop stress, strain (creep) rate, and failure stress. Relatively soft FeCrAl alloys deformed and burst below 800 °C, while negligible strain rates were measured for higher strength alloys.« less
In-Drift Microbial Communities
DOE Office of Scientific and Technical Information (OSTI.GOV)
D. Jolley
2000-11-09
As directed by written work direction (CRWMS M and O 1999f), Performance Assessment (PA) developed a model for microbial communities in the engineered barrier system (EBS) as documented here. The purpose of this model is to assist Performance Assessment and its Engineered Barrier Performance Section in modeling the geochemical environment within a potential repository drift for TSPA-SR/LA, thus allowing PA to provide a more detailed and complete near-field geochemical model and to answer the key technical issues (KTI) raised in the NRC Issue Resolution Status Report (IRSR) for the Evolution of the Near Field Environment (NFE) Revision 2 (NRC 1999).more » This model and its predecessor (the in-drift microbial communities model as documented in Chapter 4 of the TSPA-VA Technical Basis Document, CRWMS M and O 1998a) was developed to respond to the applicable KTIs. Additionally, because of the previous development of the in-drift microbial communities model as documented in Chapter 4 of the TSPA-VA Technical Basis Document (CRWMS M and O 1998a), the M and O was effectively able to resolve a previous KTI concern regarding the effects of microbial processes on seepage and flow (NRC 1998). This document supercedes the in-drift microbial communities model as documented in Chapter 4 of the TSPA-VA Technical Basis Document (CRWMS M and O 1998a). This document provides the conceptual framework of the revised in-drift microbial communities model to be used in subsequent performance assessment (PA) analyses.« less
ERIC Educational Resources Information Center
Midgley, Jeri S.
2012-01-01
The purpose of this ex-post facto quantitative study was to evaluate the benefits of professional technical postsecondary education in Idaho. Human capital theory formed the basis of understanding the importance of acquiring education beyond high school, both for the individual and society. Interactions between entry earnings and cost of attending…
ERIC Educational Resources Information Center
Winstead, Ann S.; Adams, Barbara L.; Sillah, Marion Rogers
2009-01-01
Today's business climate requires that management recruits not only know the technical aspects of their jobs, but also possess communication, teambuilding and leadership skills. Most business school curricula, however, focus only on technical skills, and do not address the "soft skills" in a formal setting or on a consistent basis. As…
76 FR 43963 - Regional Haze State Implementation Plan; State of Nevada; Extension of Comment Period
Federal Register 2010, 2011, 2012, 2013, 2014
2011-07-22
... deadline for written comments on the proposed approval of the Regional Haze SIP by 30 days to August 22... technical materials that form the basis of Nevada's Regional Haze SIP and EPA's proposed approval. The EPA...'s proposed approval of the technical analyses presented in Nevada's plan. DATES: The comment period...
Methods and Models of the Hanford Internal Dosimetry Program, PNNL-MA-860
DOE Office of Scientific and Technical Information (OSTI.GOV)
Carbaugh, Eugene H.; Bihl, Donald E.; Maclellan, Jay A.
2003-01-03
This manual describes the technical basis for the design of the routine radiobioassay monitoring program and assessments of internal dose. Its purpose is to provide a historical record of the methods, models, and assumptions used for internal dosimetry at Hanford, and serve as a technical reference for radiation protection and dosimetry staff.
Defense Technical Information Center Free Text Experiment - Technical Report File.
1981-10-01
but also to minimize "no hits." For the purpose of this test the National Library of Medicine (NLM) Stop Word List (appendix D) was used as a basis for...Search @SRTAB@ black cats end 8. Synonyms should be considered as part of the search strategy: Example: MARIJUANA, MARIHUANA , POT, GRASS, WEED, MARY
Atmospheric Models For Over-Ocean Propagation Loss
2015-08-24
Radiosonde balloons are launched daily at selected loca- tions, and measure temperature, dew point temperature, and air pressure as they ascend. Radiosondes...different times of year and locations. The result was used to estimate high-reliability SHF/EHF air -to-surface radio link performance in a maritime...environment. I. INTRODUCTION Air -to-surface radio links differ from typical satellite com- munications links in that the path elevation angles are lower
Fluid Dynamic Analysis of Volcanic Tremor,
1982-10-01
information regarding the fluid system Fiske (1969) Kilauea volcano : The 1967-68 summit configuration, tremor magnitudes and source loca- eruption...Koyanagi (1981) Deep volcanic tremor logicalSociety of America, vol. 40, p. 175-194. and magma ascent mechanism under Kilauea , Hawaii . Omori, F...dynamics Seismology Tremors Volcanoes 40 M\\ TlACT (amhue ai revers if5 neeeeiy md ide~Wify by block number) Low-frequency (< 10 Hz) volcanic earthquakes
Joint Force Quarterly. Number 15, Spring 1997
1997-06-01
headquarters to extract information from sensors on the vehicle without bothering crew members with extraneous reports. Position loca- tion devices on... change in how they do business. Air Force lean logistics and Army velocity management programs are literal springboards for quantum improvements in...Spring 1997 Victory smiles upon those who anticipate the changes in the character of war, not upon those who wait to adapt themselves after the changes
1984-04-01
wavelengths. A direct application of such a laser is isotope separation. 2. For a brief status report of the Laboratory’s high- explosive flash...operation in the fall of 1982. in a 50-MeV Advanced Test Accelerator Facility (the ATA)1 that we are con- structing at our high- explosives test loca...chemical explosives in target-damage studies. Potential hazards associated with the ATA experiments were considered in choosing our site. LLNL’s
DOE Office of Scientific and Technical Information (OSTI.GOV)
Rebollo, L.
1992-04-01
Several beyond-design bases cold leg small-break LOCA postulated scenarios based on the lessons learned'' in the OECD-LOFT LP-SB-3 experiment have been analyzed for the Westinghouse single loop Jose Cabrera Nuclear Power Plant belonging to the Spanish utility UNION ELECTRICA FENOSA, S.A. The analysis has been done by the utility in the Thermal-Hydraulic Accident Analysis Section of the Engineering Department of the Nuclear Division. The RELAP5/MOD2/36.04 code has been used on a CYBER 180/830 computer and the simulation includes the 6 in. RHRS charging line, the 2 in. pressurizer spray, and the 1.5 in. CVCS make-up line piping breaks. The assumptionmore » of a total black-out condition'' coincident with the occurrence of the event has been made in order to consider a plant degraded condition with total active failure of the ECCS. As a result of the analysis, estimates of the time to core overheating startup'' as well as an evaluation of alternate operator measures to mitigate the consequences of the event have been obtained. Finally a proposal for improving the LOCA emergency operating procedure (E-1) has been suggested.« less
DOE Office of Scientific and Technical Information (OSTI.GOV)
Rebollo, L.
1992-04-01
Several beyond-design bases cold leg small-break LOCA postulated scenarios based on the ``lessons learned`` in the OECD-LOFT LP-SB-3 experiment have been analyzed for the Westinghouse single loop Jose Cabrera Nuclear Power Plant belonging to the Spanish utility UNION ELECTRICA FENOSA, S.A. The analysis has been done by the utility in the Thermal-Hydraulic & Accident Analysis Section of the Engineering Department of the Nuclear Division. The RELAP5/MOD2/36.04 code has been used on a CYBER 180/830 computer and the simulation includes the 6 in. RHRS charging line, the 2 in. pressurizer spray, and the 1.5 in. CVCS make-up line piping breaks. Themore » assumption of a ``total black-out condition`` coincident with the occurrence of the event has been made in order to consider a plant degraded condition with total active failure of the ECCS. As a result of the analysis, estimates of the ``time to core overheating startup`` as well as an evaluation of alternate operator measures to mitigate the consequences of the event have been obtained. Finally a proposal for improving the LOCA emergency operating procedure (E-1) has been suggested.« less
Analysis of Loss-of-Coolant Accidents in the NIST Research Reactor - Early Phase
DOE Office of Scientific and Technical Information (OSTI.GOV)
Baek, Joo S.; Diamond, David
A study of the fuel temperature during the early phase of a loss-of-coolant accident (LOCA) in the NIST research reactor (NBSR) was completed. Previous studies had been reported in the preliminary safety analysis report for the conversion of the NBSR from high-enriched uranium (HEU) fuel to low-enriched (LEU) fuel. Those studies had focused on the most vulnerable LOCA situation, namely, a double-ended guillotine break in the time period after reactor trip when water is drained from either the coolant channels inside the fuel elements or the region outside the fuel elements. The current study fills in a gap in themore » analysis which is the early phase of the event when there may still be water present but the reactor is at power or immediately after reactor trip and pumps have tripped. The calculations were done, for both the current HEU-fueled core and the proposed LEU core, with the TRACE thermal-hydraulic systems code. Several break locations and different break sizes were considered. In all cases the increase in the clad (or fuel meat) temperature was relatively small so that a large margin to the temperature threshold for blistering (the Safety Limit for the NBSR) remained.« less
NASA Astrophysics Data System (ADS)
Riyadi, Eko H.
2014-09-01
Initiating event is defined as any event either internal or external to the nuclear power plants (NPPs) that perturbs the steady state operation of the plant, if operating, thereby initiating an abnormal event such as transient or loss of coolant accident (LOCA) within the NPPs. These initiating events trigger sequences of events that challenge plant control and safety systems whose failure could potentially lead to core damage or large early release. Selection for initiating events consists of two steps i.e. first step, definition of possible events, such as by evaluating a comprehensive engineering, and by constructing a top level logic model. Then the second step, grouping of identified initiating event's by the safety function to be performed or combinations of systems responses. Therefore, the purpose of this paper is to discuss initiating events identification in event tree development process and to reviews other probabilistic safety assessments (PSA). The identification of initiating events also involves the past operating experience, review of other PSA, failure mode and effect analysis (FMEA), feedback from system modeling, and master logic diagram (special type of fault tree). By using the method of study for the condition of the traditional US PSA categorization in detail, could be obtained the important initiating events that are categorized into LOCA, transients and external events.
78 FR 50454 - Entergy Operations, Inc., River Bend Station, Unit 1
Federal Register 2010, 2011, 2012, 2013, 2014
2013-08-19
... containment internal pressure related to the design basis accident specified either in the technical... RBS to continue to use the pre-extended power uprate value of 7.6 psig rather than use the newly... period following a design basis accident. The Need for the Proposed Action The proposed exemption is...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-04-26
..., engineering or design work and purchasing existing facilities or right-of-way. 3. Livability: Increasing... Feasibility: The technical feasibility of the project should be demonstrated by engineering and design studies and activities; the development of design criteria and/or a basis of design; the basis for the cost...
DOE-GTO Low Temperture Projects Evaluation and Lessons Learned
DOE Office of Scientific and Technical Information (OSTI.GOV)
Williams, Tom; Snyder, Neil; Gosnold, Will
2017-05-01
This paper discusses opportunities and challenges related to the technical and economic feasibility of developing power generation from geothermal resources at temperatures of 150 degrees C and lower. Insights from projects funded by the U.S. Department of Energy (DOE), Geothermal Technologies Office inform these discussions and provide the basis for some lessons learned to help guide decisions by DOE and the industry in further developing this resource. The technical basis for low-temperature geothermal energy is well established and the systems can be economic today in certain situations. However, these applications are far from a 'plug and play' product; successful developmentmore » today requires a good knowledge of geothermal system design and operation.« less
Technical basis for internal dosimetry at Hanford
DOE Office of Scientific and Technical Information (OSTI.GOV)
Sula, M.J.; Carbaugh, E.H.; Bihl, D.E.
1991-07-01
The Hanford Internal Dosimetry Program, administered by Pacific Northwest Laboratory for the US Department of Energy, provides routine bioassay monitoring for employees who are potentially exposed to radionuclides in the workplace. This report presents the technical basis for routine bioassay monitoring and the assessment of internal dose at Hanford. The radionuclides of concern include tritium, corrosion products ({sup 58}Co, {sup 60}Co, {sup 54}Mn, and {sup 59}Fe), strontium, cesium, iodine, europium, uranium, plutonium, and americium,. Sections on each of these radionuclides discuss the sources and characteristics; dosimetry; bioassay measurements and monitoring; dose measurement, assessment, and mitigation and bioassay follow-up treatment. 78more » refs., 35 figs., 115 tabs.« less
Technical basis for internal dosimetry at Hanford
DOE Office of Scientific and Technical Information (OSTI.GOV)
Sula, M.J.; Carbaugh, E.H.; Bihl, D.E.
1989-04-01
The Hanford Internal Dosimetry Program, administered by Pacific Northwest Laboratory for the US Department of Energy, provides routine bioassay monitoring for employees who are potentially exposed to radionuclides in the workplace. This report presents the technical basis for routine bioassay monitoring and the assessment of internal dose at Hanford. The radionuclides of concern include tritium, corrosion products (/sup 58/Co, /sup 60/Co, /sup 54/Mn, and /sup 59/Fe), strontium, cesium, iodine, europium, uranium, plutonium, and americium. Sections on each of these radionuclides discuss the sources and characteristics; dosimetry; bioassay measurements and monitoring; dose measurement, assessment, and mitigation; and bioassay follow-up treatment. 64more » refs., 42 figs., 118 tabs.« less
ERIC Educational Resources Information Center
Garnet, Dustin
2015-01-01
Adopting the lens of "new histories" as the basis for my inquiry into the institutional legacy of the art program at Toronto's Central Technical School (CTS), I created a methodological framework informed by the traditional art form of the polyptych, in which many panels are joined together to show and tell multilayered stories connected…
ERIC Educational Resources Information Center
Brodersen, R. Marc; Yanoski, David; Hyslop, Alisha; Imperatore, Catherine
2016-01-01
Career and technical education (CTE) programs of study are subject to rigorous state and federal accountability systems that provide information on key student outcomes. However, while these outcome measures can form a basis for identifying high- and low-performing programs, they are insufficient for answering underlying questions about how or why…
ERIC Educational Resources Information Center
Bullock, Bob; And Others
This minicourse was prepared for use with secondary physics students in the Dallas Independent School District and is one option in a physics program which provides for the selection of topics on the basis of student career needs and interests. This minicourse was aimed at providing students with a knowledge of the technical descriptions of music,…
ERIC Educational Resources Information Center
Jaakkola, Maarit
2018-01-01
This article presents a comparison of technical, organizational, and pedagogical structures of six curriculum-related newsrooms in journalism education in the Nordic countries. The newsrooms were selected for comparison on the basis that they had permanent physical facilities and technical channels for publication, and they presented an integral…
Fallon Geothermal Exploration Project, Naval Air Station, Fallon, Nevada.
1980-05-01
magneto- telluric studies. LINEAMENT ANALYSIS As part of the initial phase of the Fallon Exploration Project, a composite lineament analysis of the region...Nevada. United States Geological Survey Bulletin 750, 1924, pp. 79-86. Hoover, D. B., R. M. Senterfit, and Bruce Radtke. Telluric Profile Loca- tion...Map and Telluric Data for the Salt Wells Known Geothermal Resource Area, Nevada. United States Geological Survey Open File Report 77-66F, 1977. Horton
The California Debris Commission: A History
1981-01-01
the pipe a more freely in the horizontal plane, while vertical elastic packing in the joint instead of two stable instrument to handle. movement was...report of January duplicate and triplicate taxation , and (4) it 1880 painted a dark and sobering picture Following two months of intense and had not the...isolated cases it is possible to impound debris without injury; also, that loca- tions exist in the canons of the different mining streams in the Sierra
The Effects of Alarm Display, Processing, and Availability on Crew Performance
2000-11-01
snow Instrumentation line leakage Small LOCA Steam generator tube rupture Small feedwater leakage inside containment Cycling of main steam...implemented. • Due to primary pressure controller failure, pressure heater banks cycle between on and off. 8.00 CF1 CF2 CF3 CF4 CF5...temperatures after the high-pressure pre- heaters flows into the steam generators number of active emergency feedwater pumps openings of the condensate
DOE Office of Scientific and Technical Information (OSTI.GOV)
Cazzato, Roberto Luigi, E-mail: gigicazzato@hotmail.it; Garnon, Julien; Department of Interventional Radiology, Nouvel Hôpital Civil
ObjectivesThe purpose of this study is to discuss technical aspects and rationales of magnetic resonance (MR)-guided cryoablation (CA) of Morton’s neuroma (MN); preliminary clinical experience is also retrospectively reviewed.MethodsProcedures were performed under local anaesthesia on an outpatient basis. Lesion size and location, procedural (technical success, procedural time, complications) and clinical outcomes (patient satisfaction according to a four-point scale, residual pain according to a 0–10 visual analogue scale and instances of “stump neuroma”) were assessed via chart review and cross-sectional telephone survey after the 20th case.ResultsTwenty patients (15 female, 5 male; mean age 50.3 years) were included; 24 MN (mean size 12.7 mm)more » were treated. Technical success was 100 %. Mean procedural time was 40.9 ± 10.4 min (range 35–60). One minor complication (superficial cellulitis) was reported (4.2 %). Follow-up (mean 19.7 months) was available for 18/24 MN. Patient satisfaction on a per-lesion basis was as follows: “completely satisfied” in 77.7 %, “satisfied with minor reservations” in 16.6 % and “satisfied with major reservations” in 5.7 % of cases. Mean pain score at last follow-up post-CA was 3.0. No instances of “stump neuroma” were reported.ConclusionsMR-guided CA of MN is a novel therapy which appears technically feasible. Clinical advantages of the procedure are high patient satisfaction, reduced risk of “stump neuroma” syndrome and good patient tolerance on an outpatient basis. Further, prospective studies are needed to confirm these encouraging results.« less
Romero, L F; Zuidhof, M J; Jeffrey, S R; Naeima, A; Renema, R A; Robinson, F E
2010-08-01
This study evaluated the effect of feed allocation and energetic efficiency on technical and economic efficiency of broiler breeder hens using the data envelope analysis methodology and quantified the effect of variables affecting technical efficiency. A total of 288 Ross 708 pullets were placed in individual cages at 16 wk of age and assigned to 1 of 4 feed allocation groups. Three of them had feed allocated on a group basis with divergent BW targets: standard, high (standard x 1.1), and low (standard x 0.9). The fourth group had feed allocated on an individual bird basis following the standard BW target. Birds were classified in 3 energetic efficiency categories: low, average, and high, based on estimated maintenance requirements. Technical efficiency considered saleable chicks as output and cumulative ME intake and time as inputs. Economic efficiency of feed allocation treatments was analyzed under different cost scenarios. Birds with low feed allocation exhibited a lower technical efficiency (69.4%) than standard (72.1%), which reflected a reduced egg production rate. Feed allocation of the high treatment could have been reduced by 10% with the same chick production as the standard treatment. The low treatment exhibited reduced economic efficiency at greater capital costs, whereas high had reduced economic efficiency at greater feed costs. The average energetic efficiency hens had a lower technical efficiency in the low compared with the standard feed allocation. A 1% increment in estimated maintenance requirement changed technical efficiency by -0.23%, whereas a 1% increment in ME intake had a -0.47% effect. The negative relationship between technical efficiency and ME intake was counterbalanced by a positive correlation of ME intake and egg production. The negative relationship of technical efficiency and maintenance requirements was synergized by a negative correlation of hen maintenance and egg production. Economic efficiency methodologies are effective tools to assess the economic effect of selection and flock management programs because biological, allocative, and economic factors can be independently analyzed.
Control and Diagnostic Model of Brushless Dc Motor
NASA Astrophysics Data System (ADS)
Abramov, Ivan V.; Nikitin, Yury R.; Abramov, Andrei I.; Sosnovich, Ella V.; Božek, Pavol
2014-09-01
A simulation model of brushless DC motor (BLDC) control and diagnostics is considered. The model has been developed using a freeware complex "Modeling in technical devices". Faults and diagnostic parameters of BLDC are analyzed. A logicallinguistic diagnostic model of BLDC has been developed on basis of fuzzy logic. The calculated rules determine dependence of technical condition on diagnostic parameters, their trends and utilized lifetime of BLDC. Experimental results of BLDC technical condition diagnostics are discussed. It is shown that in the course of BLDC degradation the motor condition change depends on diagnostic parameter values
DOE Office of Scientific and Technical Information (OSTI.GOV)
Williams, Tom; Snyder, Neil; Gosnold, Will
This paper discusses opportunities and challenges related to the technical and economic feasibility of developing power generation from geothermal resources at temperatures of 150 degrees C and lower. Insights from projects funded by the U.S. Department of Energy (DOE), Geothermal Technologies Office inform these discussions and provide the basis for some lessons learned to help guide decisions by DOE and the industry in further developing this resource. The technical basis for low-temperature geothermal energy is well established and the systems can be economic today in certain situations. However, these applications are far from a 'plug and play' product; successful developmentmore » today requires a good knowledge of geothermal system design and operation.« less
DOE Office of Scientific and Technical Information (OSTI.GOV)
Williams, Tom; Snyder, Neil; Gosnold, Will
This paper discusses opportunities and challenges related to the technical and economic feasibility of developing power generation from geothermal resources at temperatures of 150 degrees C and lower. Insights from projects funded by the U.S. Department of Energy (DOE), Geothermal Technologies Office inform these discussions and provide the basis for some lessons learned to help guide decisions by DOE and the industry in further developing this resource. The technical basis for low-temperature geothermal energy is well established and the systems can be economic today in certain situations. However, these applications are far from a 'plug and play' product; successful developmentmore » today requires a good knowledge of geothermal system design and operation.« less
Key issues and technical route of cyber physical distribution system
NASA Astrophysics Data System (ADS)
Zheng, P. X.; Chen, B.; Zheng, L. J.; Zhang, G. L.; Fan, Y. L.; Pei, T.
2017-01-01
Relying on the National High Technology Research and Development Program, this paper introduced the key issues in Cyber Physical Distribution System (CPDS), mainly includes: composite modelling method and interaction mechanism, system planning method, security defence technology, distributed control theory. Then on this basis, the corresponding technical route is proposed, and a more detailed research framework along with main schemes to be adopted is also presented.
ERIC Educational Resources Information Center
Bullock, Bob; And Others
This minicourse was prepared for use with secondary physics students in the Dallas Independent School District and is one option in a physics program which provides for the selection of topics on the basis of student career needs and interests. This minicourse was aimed at two levels in the study of basic machines. The "light" level…
A Study of the Educational and Manpower Needs of the Catawba Valley Technical Institute Impact Area.
ERIC Educational Resources Information Center
Sumerell, Craven H.
The purpose of this study was to make a survey of the educational needs of the community served by the Catawba Valley Technical Institute (CVTI), the results of which would serve as a basis for the projection, planning, and revision of the CVTI instructional programs and the planning of physical facilities. In this cooperative venture, the data…
ERIC Educational Resources Information Center
Department of Health , Education, and Welfare, Washington., DC. Office of the Secretary.
This handbook provides a basis for consideration of acceptable approaches which are available and may be used to initiate the use of construction management services in the planning, design, and construction of federally assisted construction projects. It includes the mandatory federal requirements as well as acceptable procedures for selecting…
NASA Astrophysics Data System (ADS)
Demin, V. A.; Emelyanov, A. V.; Lapkin, D. A.; Erokhin, V. V.; Kashkarov, P. K.; Kovalchuk, M. V.
2016-11-01
The instrumental realization of neuromorphic systems may form the basis of a radically new social and economic setup, redistributing roles between humans and complex technical aggregates. The basic elements of any neuromorphic system are neurons and synapses. New memristive elements based on both organic (polymer) and inorganic materials have been formed, and the possibilities of instrumental implementation of very simple neuromorphic systems with different architectures on the basis of these elements have been demonstrated.
Trainees' perceptions of practitioner competence during patient transfer.
Grierson, Lawrence; Dubrowski, Adam; So, Steph; Kistner, Nicole; Carnahan, Heather
2012-01-01
Technical and communicative skills are both important features for one's perception of practitioner competence. This research examines how trainees' perceptions of practitioner competence change as they view health care practitioners who vary in their technical and communicative skill proficiencies. Occupational therapy students watched standardized encounters of a practitioner performing a patient transfer in combinations of low and high technical and communicative proficiency and then reported their perceptions of practitioner competence. The reports indicate that technical and communicative skills have independently identifiable impacts on the perceptions of practitioner competency, but technical proficiency has a special impact on the students' perceptions of practitioner communicative competence. The results are discussed with respect to the way in which students may evaluate their own competence on the basis of either technical or communicative skill. The issue of how this may lead trainees to dedicate their independent learning efforts to an incomplete set of features needed for the development of practitioner competency is raised.
Operation TEAPOT. Report of the Test Manager Joint Test Organization
1981-11-01
Analysis of air, water, and milk samples were made at the laboratory at Mercury. z. 6.4 MONITORING PROCEDURES A mobile surface monitoring group consisting o...additional weather observations proved very use- ful in weather analysis and forecasting as well as for monitoring winds aloft prior to shot time. The...data were also valuable in post analysis for accurate plotting of fallout and determining cloud trajectories. The loca- tion and type of operations of
Better Vision Through Manipulation
2002-01-01
correlation can be used as a "signature" to iden- map useful for generating arm, head, and trunk tify parts of the scene that are being influenced by...down reaching. This can be over- in response to the nudge of the arm. This move- come by training up a function to estimate the loca- ment will be... behavioural evidence. Experimental Gibson, J. J. (1977). The theory of affordances. Brain Research, 143:335-341. In Shaw, R. and Bransford, J., (Eds
1982-10-01
calibrated by using spherical glass beads and aluminum oxide powder . Measurements were successfully made at both locations. Because DO 1473 EoITioN OF I NOVy...determined using measurements of diffrac- tively scattered laser power spectra. The apparatus was calibrated by using spherical glass beads and aluminum oxide... powder . Measurements were successfully made at both loca- tions. Because of the presence of char agglomerates in the exhaust, continued effort is
Core-power and decay-time limits for disabled automatic-actuation of LOFT ECCS
DOE Office of Scientific and Technical Information (OSTI.GOV)
Hanson, G.H.
1978-11-22
The Emergency Core Cooling System (ECCS) for the LOFT reactor may need to be disabled for modifications or repairs of hardware or instrumentation or for component testing during periods when the reactor system is hot and pressurized, or it may be desirable to enable the ECCS to be disabled without the necessity of cooling down and depressurizing the reactor. A policy involves disabling the automatic-actuation of the LOFT ECCS, but still retaining the manual actuation capability. Disabling of the automatic actuation can be safely utilized, without subjecting the fuel cladding to unacceptable temperatures, when the LOFT power decays to 33more » kW; this power level permits a maximum delay of 20 minutes following a LOCA for the manual actuation of ECCS. For the operating power of the L2-2 Experiment, the required decay-periods (with operating periods of 40 and 2000 hours) are about 21 and 389 hours, respectively. With operating periods of 40 and 2000 hours at Core-I full power, the required decay-periods are about 42 and 973 hours, respectively. After these decay periods the automatic actuation of the LOFT ECCS can be disabled assuming a maximum delay of 20 minutes following a LOCA for the manual actuation of ECCS. The automatic and manual lineup of the ECCS may be waived if decay power is less than 11 kW.« less
DOE Office of Scientific and Technical Information (OSTI.GOV)
Riyadi, Eko H., E-mail: e.riyadi@bapeten.go.id
2014-09-30
Initiating event is defined as any event either internal or external to the nuclear power plants (NPPs) that perturbs the steady state operation of the plant, if operating, thereby initiating an abnormal event such as transient or loss of coolant accident (LOCA) within the NPPs. These initiating events trigger sequences of events that challenge plant control and safety systems whose failure could potentially lead to core damage or large early release. Selection for initiating events consists of two steps i.e. first step, definition of possible events, such as by evaluating a comprehensive engineering, and by constructing a top level logicmore » model. Then the second step, grouping of identified initiating event's by the safety function to be performed or combinations of systems responses. Therefore, the purpose of this paper is to discuss initiating events identification in event tree development process and to reviews other probabilistic safety assessments (PSA). The identification of initiating events also involves the past operating experience, review of other PSA, failure mode and effect analysis (FMEA), feedback from system modeling, and master logic diagram (special type of fault tree). By using the method of study for the condition of the traditional US PSA categorization in detail, could be obtained the important initiating events that are categorized into LOCA, transients and external events.« less
Diagnostics of Loss of Coolant Accidents Using SVC and GMDH Models
NASA Astrophysics Data System (ADS)
Lee, Sung Han; No, Young Gyu; Na, Man Gyun; Ahn, Kwang-Il; Park, Soo-Yong
2011-02-01
As a means of effectively managing severe accidents at nuclear power plants, it is important to identify and diagnose accident initiating events within a short time interval after the accidents by observing the major measured signals. The main objective of this study was to diagnose loss of coolant accidents (LOCAs) using artificial intelligence techniques, such as SVC (support vector classification) and GMDH (group method of data handling). In this study, the methodologies of SVC and GMDH models were utilized to discover the break location and estimate the break size of the LOCA, respectively. The 300 accident simulation data (based on MAAP4) were used to develop the SVC and GMDH models, and the 33 test data sets were used to independently confirm whether or not the SVC and GMDH models work well. The measured signals from the reactor coolant system, steam generators, and containment at a nuclear power plant were used as inputs to the models, and the 60 sec time-integrated values of the input signals were used as inputs into the SVC and GMDH models. The simulation results confirmed that the proposed SVC model can identify the break location and the proposed GMDH models can estimate the break size accurately. In addition, even if the measurement errors exist and safety systems actuate, the proposed SVC and GMDH models can discover the break locations without a misclassification and accurately estimate the break size.
AP1000{sup R} nuclear power plant safety overview for spent fuel cooling
DOE Office of Scientific and Technical Information (OSTI.GOV)
Gorgemans, J.; Mulhollem, L.; Glavin, J.
2012-07-01
The AP1000{sup R} plant is an 1100-MWe class pressurized water reactor with passive safety features and extensive plant simplifications that enhance construction, operation, maintenance, safety and costs. The AP1000 design uses passive features to mitigate design basis accidents. The passive safety systems are designed to function without safety-grade support systems such as AC power, component cooling water, service water or HVAC. Furthermore, these passive features 'fail safe' during a non-LOCA event such that DC power and instrumentation are not required. The AP1000 also has simple, active, defense-in-depth systems to support normal plant operations. These active systems provide the first levelmore » of defense against more probable events and they provide investment protection, reduce the demands on the passive features and support the probabilistic risk assessment. The AP1000 passive safety approach allows the plant to achieve and maintain safe shutdown in case of an accident for 72 hours without operator action, meeting the expectations provided in the U.S. Utility Requirement Document and the European Utility Requirements for passive plants. Limited operator actions are required to maintain safe conditions in the spent fuel pool via passive means. In line with the AP1000 approach to safety described above, the AP1000 plant design features multiple, diverse lines of defense to ensure spent fuel cooling can be maintained for design-basis events and beyond design-basis accidents. During normal and abnormal conditions, defense-in-depth and other systems provide highly reliable spent fuel pool cooling. They rely on off-site AC power or the on-site standby diesel generators. For unlikely design basis events with an extended loss of AC power (i.e., station blackout) or loss of heat sink or both, spent fuel cooling can still be provided indefinitely: - Passive systems, requiring minimal or no operator actions, are sufficient for at least 72 hours under all possible pool heat load conditions. - After 3 days, several different means are provided to continue spent fuel cooling using installed plant equipment as well as off-site equipment with built-in connections. Even for beyond design basis accidents with postulated pool damage and multiple failures in the passive safety-related systems and in the defense-in-depth active systems, the AP1000 multiple spent fuel pool spray and fill systems provide additional lines of defense to prevent spent fuel damage. (authors)« less
2016-06-01
thorough market research, acquisition professionals must decide at an early stage which source selection strategy (lowest price technically...minimizing risk and ensuring best value for all stakeholders. On the basis of thorough market research, acquisition professionals must decide at an early...price-based, market -driven environment from requirements development through properly disposal. Source selection must be 8 made on a ‘best value
2008-01-01
PDA Technical Report No. 14 has been written to provide current best practices, such as application of risk-based decision making, based in sound science to provide a foundation for the validation of column-based chromatography processes and to expand upon information provided in Technical Report No. 42, Process Validation of Protein Manufacturing. The intent of this technical report is to provide an integrated validation life-cycle approach that begins with the use of process development data for the definition of operational parameters as a basis for validation, confirmation, and/or minor adjustment to these parameters at manufacturing scale during production of conformance batches and maintenance of the validated state throughout the product's life cycle.
USSR Report, Science and Technology Policy.
1987-05-28
rate on the basis of the priority allocation of capital investments in the technical retooling and reconstruction of existing production. Their...development, as well as in the drafting of proposals for reconstruction and for the creation of new capacities for series production. The comparison...of variants of reconstruction of an ore dressing combine, which was made in USSR Gosplan departments on the basis of the analysis of the efficiency
Bell Canada Training for Future
ERIC Educational Resources Information Center
Blake, Frank
1973-01-01
Bell Canada's plans for future training will be on a centralized basis, using specialists in instructional technology to identify training needs and design courses at both the technical and managerial levels. (DS)
Clearinghouse for Inventories and Emissions Factors
Emissions inventories, modeling, and monitoring are the basis for understanding, controlling and tracking stationary sources of air pollution. This technical site provides access to tools and data to support those efforts.
ENcentive: A Framework for Intelligent Marketing in Mobile Peer-To-Peer Environments
2005-01-01
trade and commu- nication strategies, mobile electronic marketing, intelligent agents, collaborative eCommerce 1. INTRODUCTION With the explosion of...requests the promotion (since Jeff is a cof- fee drinker). MH2 signs the promotion with Susan’s eN- centive ID. At 6pm, Jeff decides to take advantage of the...to become valid, a user has a choice of remaining in his current loca- tion and being able to take advantage of the promotion. The eNcentive Ad
1990-11-01
and psychrometers : the loca- cm-diameter wooden dowel approximately 122 cm in tion of these gauges is shown in Figure 16. The length, with 4.0-mm holes...thermocouple psychrometers were the third Dowel set of sensors used. A detailed description of these sensors can be found in a paper by Brown and...Figure 19. Freezing of test sections. in resistance with temperature in TS 2. Major changes psychrometers were not evaluated for this report. These in
The history of Fort Leavenworth, 1937 - 1951
1951-01-01
research assistance on the bibliography and some of the appendixes; Public Library, Leaven- worth, Kansas, for use of facilities; M~r. Cleve Williams for...througho4t (Act or Cometition s ged by Loca Citizens)its active ser~iice on a Snake River run, from Pocatello, Idaho , north to (Act or Cmpetitio s aged y...Post as usual 35th Division and Maj Gen William K. Herndon on June 9, 1940. A few days later the War of the 24th Division, National Guard, were on
Development of Facility Type Information Packages for Design of Air Force Facilities.
1983-03-01
solution. For example, the optimum size and loca- 19 tion of windows for the incorporation of a passive solar *l . heating system varies with location, time...conditioning load estimate M. Energy impact statement N. Majcom review comments 0. Solar energy systems 61 4 Information which could help in the development...and Passive solar systems. All facilities should have Scme aspects of passive solar incor- por3ted into the iesign. Active sclar systems should ze con
A Steady State and Dynamic Analysis of a Mooring System.
1977-03-25
drag on subsurface buoy Dx«, »y«» Dzs Cable drag eoaponants in esble coordinates *A Distance between calculated location and actual loca- tion of...ship Be Modulus of elasticity of esble fh Highest natural frequency of systea 0 Horizontal distance between snshor and ship -- MUIIM—laSHS...TQD Tension in esble fron ahlp st subsurface buoy TBB Tension in cable fron anchor at aubaurfaea buoy Ty" Tension In n’th esble segaent Hif|l
Reconstruction of Acoustic Exposure on Orcas in Haro Strait
2009-01-01
Resident killer whales (Orcinus orca) (J pod).1 The class shadowed the J pod from their boat, recording its behavior, the GPS loca- tion of the...one of the resident pods of orcas, raising the question of the sonar’s impact on them. Due to two coincidental activities, this question can be...addressed in detail. Coinciding with Shoup’s transit, a marine mammal class from Friday Harbor Labs led by Dr. David Bain was observing a pod of Southern
1977-01-01
groups who used this ratio should be considered. them to process wild seeds and other vegeta material. The trough metate has been considered a specialized...transition and as an indi- was composed entirely of jar formswith wide oriface. cation of the importance assumed by wild vegetal ma- not as difficult to...For example. Ovis/Capra meat is con- faunal resource utilization from the excavated site loca- sidered most edible when the animal is young. Meat
International Workshop on Millimeter Waves (1992) Held in Orvieto, Italy on April 22-24, 1992
1992-04-24
1fillinmler4Vtlatri Circuits T. Yotwymatiat. Receott IDeehotnns. #of NRI)-;,.,s. Te, impIig It. 11. Jamset. Adv’anced Design Tee hnu jues fir Leiear... designed for the sky radiation measurement. - consideration of typical flight altitudes of 300m to Its output delivers a mean-value of the relevant...Electrolytic Processes: Anodic, Etching and Cathodic -increase of Surface to Volume Ratio metal deponition. Loca-Stuctre epoitin b pont- ikea ) no damage
Design and Implementation of a Consolidated Airfield at McMurdo, Antarctica
2014-09-01
DESTROY THIS REPORT WHEN NO LONGER NEEDED. DO NOT RETURN IT TO THE ORIGINATOR . ERDC/CRREL TR-14-22 iii Contents Abstract...the current loca- tion of the white ice runway (the wheeled runway at Pegasus) is about 1/3 mile WSW of where it was when it was originally ...ft below the surface. This is not surprising; when the original runway was established in 1991–92, there were regions where the ice needed to be
DOE Office of Scientific and Technical Information (OSTI.GOV)
Branch, Kristi M.; Baker, Kathryn A.
A technical letter report to the NRC summarizing the findings of a benchmarking study, literature review, and workshop with experts on current industry standards and expert judgments about needs for security during the construction phase of critical infrastructure facilities in the post-September 11 U.S. context, with a special focus on the construction phase of nuclear power plants and personnel security measures.
47 CFR 95.601 - Basis and purpose.
Code of Federal Regulations, 2011 CFR
2011-10-01
... technical standards to which each transmitter (apparatus that converts electrical energy received from a source into RF (radio frequency) energy capable of being radiated) used or intended to be used in a...
Baiden, F; Malm, K; Bart-Plange, C; Hodgson, A; Chandramohan, D; Webster, J; Owusu-Agyei, S
2014-06-01
The presumptive approach was the World Health Organisation (WHO) recommended to the management of malaria for many years and this was incorporated into syndromic guidelines such as the Integrated Management of Childhood Illnesses (IMCI). In early 2010 however, WHO issued revised treatment guidelines that call for a shift from the presumptive to the test-based approach. Practically, this implies that in all suspected cases, the diagnosis of uncomplicated malaria should be confirmed using rapid test before treatment is initiated. This revision effectively brings to an end an era of clinical practice that span several years. Its implementation has important implications for the health systems in malaria-endemic countries. On the basis of research in Ghana and other countries, and evidence from program work, the Ghana National Malaria Control Program has issued revised national treatment guidelines that call for implementation of test-based management of malaria in all cases, and across all age groups. This article reviews the evidence and the technical basis for the shift to test-based management and examines the implications for malaria control in Ghana.
7 CFR 4284.913 - Evaluation criteria and weights.
Code of Federal Regulations, 2011 CFR
2011-01-01
... established in the applicable RFP. (b) Working Capital Grants—(1) Business viability. Proposals will be evaluated on the basis of the technical and economic feasibility and sustainability of the venture and the...
7 CFR 4284.913 - Evaluation criteria and weights.
Code of Federal Regulations, 2010 CFR
2010-01-01
... established in the applicable RFP. (b) Working Capital Grants—(1) Business viability. Proposals will be evaluated on the basis of the technical and economic feasibility and sustainability of the venture and the...
77 FR 20051 - Meeting of the CJIS Advisory Policy Board
Federal Register 2010, 2011, 2012, 2013, 2014
2012-04-03
.... The CJIS APB is responsible for reviewing policy issues and appropriate technical and operational... basis. Any member of the public wishing to file a written statement concerning the CJIS Division's...
Contact Us About Clearinghouse for Inventories and Emissions Factors
Emissions inventories, modeling, and monitoring are the basis for understanding, controlling and tracking stationary sources of air pollution. This technical site provides access to tools and data to support those efforts.
Effect of Control Blade History, and Axial Coolant Density and Burnup Profiles on BWR Burnup Credit
DOE Office of Scientific and Technical Information (OSTI.GOV)
Marshall, William BJ J
2016-01-01
A technical basis for peak reactivity boiling water reactor (BWR) burnup credit (BUC) methods was recently generated, and the technical basis for extended BWR BUC is now being developed. In this paper, a number of effects related to extended BWR BUC are analyzed, including three major operational effects in BWRs: the coolant density axial distribution, the use of control blades during operation, and the axial burnup profile. Specifically, uniform axial moderator density profiles are analyzed and compared to previous results and an additional temporal fidelity study combing moderator density profiles for three different fuel assemblies is presented. Realistic control blademore » histories and cask criticality results are compared to previously generated constructed control blade histories. Finally, a preliminary study of the axial burnup profile is provided.« less
Technical Basis for PNNL Beryllium Inventory
DOE Office of Scientific and Technical Information (OSTI.GOV)
Johnson, Michelle Lynn
2014-07-09
The Department of Energy (DOE) issued Title 10 of the Code of Federal Regulations Part 850, “Chronic Beryllium Disease Prevention Program” (the Beryllium Rule) in 1999 and required full compliance by no later than January 7, 2002. The Beryllium Rule requires the development of a baseline beryllium inventory of the locations of beryllium operations and other locations of potential beryllium contamination at DOE facilities. The baseline beryllium inventory is also required to identify workers exposed or potentially exposed to beryllium at those locations. Prior to DOE issuing 10 CFR 850, Pacific Northwest Nuclear Laboratory (PNNL) had documented the beryllium characterizationmore » and worker exposure potential for multiple facilities in compliance with DOE’s 1997 Notice 440.1, “Interim Chronic Beryllium Disease.” After DOE’s issuance of 10 CFR 850, PNNL developed an implementation plan to be compliant by 2002. In 2014, an internal self-assessment (ITS #E-00748) of PNNL’s Chronic Beryllium Disease Prevention Program (CBDPP) identified several deficiencies. One deficiency is that the technical basis for establishing the baseline beryllium inventory when the Beryllium Rule was implemented was either not documented or not retrievable. In addition, the beryllium inventory itself had not been adequately documented and maintained since PNNL established its own CBDPP, separate from Hanford Site’s program. This document reconstructs PNNL’s baseline beryllium inventory as it would have existed when it achieved compliance with the Beryllium Rule in 2001 and provides the technical basis for the baseline beryllium inventory.« less
Availability Control for Means of Transport in Decisive Semi-Markov Models of Exploitation Process
NASA Astrophysics Data System (ADS)
Migawa, Klaudiusz
2012-12-01
The issues presented in this research paper refer to problems connected with the control process for exploitation implemented in the complex systems of exploitation for technical objects. The article presents the description of the method concerning the control availability for technical objects (means of transport) on the basis of the mathematical model of the exploitation process with the implementation of the decisive processes by semi-Markov. The presented method means focused on the preparing the decisive for the exploitation process for technical objects (semi-Markov model) and after that specifying the best control strategy (optimal strategy) from among possible decisive variants in accordance with the approved criterion (criteria) of the activity evaluation of the system of exploitation for technical objects. In the presented method specifying the optimal strategy for control availability in the technical objects means a choice of a sequence of control decisions made in individual states of modelled exploitation process for which the function being a criterion of evaluation reaches the extreme value. In order to choose the optimal control strategy the implementation of the genetic algorithm was chosen. The opinions were presented on the example of the exploitation process of the means of transport implemented in the real system of the bus municipal transport. The model of the exploitation process for the means of transports was prepared on the basis of the results implemented in the real transport system. The mathematical model of the exploitation process was built taking into consideration the fact that the model of the process constitutes the homogenous semi-Markov process.
[Flexible ENT endoscopy--video technic].
Rasinger, G A; Horak, F
1985-02-01
This study discusses the solutions to the problem of documenting moving processes in the field of otolaryngology. A flexible bronchoscope and video equipment connected to it are presented as a specific solution of the problem, with ample of observations. A technical comparison is used as the basis for a discussion of the pros and cons of the video and film techniques. A successful arrangement of examination facilities illustrates the future of flexible-endoscope techniques in the field of otolaryngology.
USDA-ARS?s Scientific Manuscript database
As this manuscript is a response to a Letter to the Editor of the Agronomy Journal, no technical abstract exists. Presented below is the technical abstract for the paper in question. Stage-specific economic injury levels form the basis of integrated pest management for soybean aphid (Aphis glycine...
Technical Feasibility Study for Zero Energy K-12 Schools
DOE Office of Scientific and Technical Information (OSTI.GOV)
Bonnema, Eric; Goldwasser, David; Torcellini, Paul
This technical feasibility study provides documentation and research results supporting a possible set of strategies to achieve source zero energy K-12 school buildings as defined by the U.S. Department of Energy (DOE) zero energy building (ZEB) definition (DOE 2015a). Under this definition, a ZEB is an energy-efficient building in which, on a source energy basis, the actual annual delivered energy is less than or equal to the on-site renewable exported energy.
Thermal-hydraulic modeling needs for passive reactors
DOE Office of Scientific and Technical Information (OSTI.GOV)
Kelly, J.M.
1997-07-01
The U.S. Nuclear Regulatory Commission has received an application for design certification from the Westinghouse Electric Corporation for an Advanced Light Water Reactor design known as the AP600. As part of the design certification process, the USNRC uses its thermal-hydraulic system analysis codes to independently audit the vendor calculations. The focus of this effort has been the small break LOCA transients that rely upon the passive safety features of the design to depressurize the primary system sufficiently so that gravity driven injection can provide a stable source for long term cooling. Of course, large break LOCAs have also been considered,more » but as the involved phenomena do not appear to be appreciably different from those of current plants, they were not discussed in this paper. Although the SBLOCA scenario does not appear to threaten core coolability - indeed, heatup is not even expected to occur - there have been concerns as to the performance of the passive safety systems. For example, the passive systems drive flows with small heads, consequently requiring more precision in the analysis compared to active systems methods for passive plants as compared to current plants with active systems. For the analysis of SBLOCAs and operating transients, the USNRC uses the RELAP5 thermal-hydraulic system analysis code. To assure the applicability of RELAP5 to the analysis of these transients for the AP600 design, a four year long program of code development and assessment has been undertaken.« less
Assessment of safety margins in zircaloy oxidation and embrittlement criteria for ECCS acceptance
DOE Office of Scientific and Technical Information (OSTI.GOV)
Williford, R.E.
1986-04-01
Current Emergency Core Cooling System (ECCS) Acceptance Criteria for light-water reactors include certain requirements pertaining to calculations of core performance during a Loss of Coolant Accident (LOCA). The Baker-Just correlation must be used to calculate Zircaloy-steam oxidation, calculated peak cladding temperatures (PCT) must not exceed 1204/sup 0/C, and calculated oxidation must not exceed 17% equivalent cladding reacted (17% ECR). The minimum margin of safety was estimated for each of these criteria, based on research performed in the last decade. Margins were defined as the amounts of conservatism over and above the expected extreme values computed from the data base atmore » specified confidence levels. The currently required Baker-Just oxidation correlation provides margins only over the 1100/sup 0/C to 1500/sup 0/C temperature range at the 95% confidence level. The PCT margins for thermal shock and handling failures are adequate at oxidation temperatures above 1204/sup 0/C for 210 and 160 seconds, respectively, at the 95% confidence level. ECR thermal shock and handling margins at the 50% and 95% confidence levels, respectively, range between 2% and 7% ECR for the Baker-Just correlation, but vanish at temperatures between 1100/sup 0/C and 1160/sup 0/C for the best-estimate Cathcart-Pawel correlation. Use of the Cathcart-Pawel correlation for LOCA calculations can be justified at the 85% to 88% confidence level if cooling rate effects can be neglected. 75 refs., 21 figs.« less
NASA Astrophysics Data System (ADS)
Artnak, Edward Joseph, III
This work seeks to illustrate the potential benefits afforded by implementing aspects of fluid dynamics, especially the latest computational fluid dynamics (CFD) modeling approach, through numerical experimentation and the traditional discipline of physical experimentation to improve the calibration of the severe reactor accident analysis code, MELCOR, in one of several spent fuel pool (SFP) complete loss-ofcoolant accident (LOCA) scenarios. While the scope of experimental work performed by Sandia National Laboratories (SNL) extends well beyond that which is reasonably addressed by our allotted resources and computational time in accordance with initial project allocations to complete the report, these simulated case trials produced a significant array of supplementary high-fidelity solutions and hydraulic flow-field data in support of SNL research objectives. Results contained herein show FLUENT CFD model representations of a 9x9 BWR fuel assembly in conditions corresponding to a complete loss-of-coolant accident scenario. In addition to the CFD model developments, a MATLAB based controlvolume model was constructed to independently assess the 9x9 BWR fuel assembly under similar accident scenarios. The data produced from this work show that FLUENT CFD models are capable of resolving complex flow fields within a BWR fuel assembly in the realm of buoyancy-induced mass flow rates and that characteristic hydraulic parameters from such CFD simulations (or physical experiments) are reasonably employed in corresponding constitutive correlations for developing simplified numerical models of comparable solution accuracy.
Core cooling under accident conditions at the high flux beam reactor (HFBR)
DOE Office of Scientific and Technical Information (OSTI.GOV)
Tichler, P.; Cheng, L.; Fauske, H.
In certain accident scenarios, e.g. loss of coolant accidents (LOCA) all forced flow cooling is lost. Decay heating causes a temperature increase in the core coolant and the resulting thermal buoyancy causes a reversal of the flow direction to a natural circulation mode. Although there was experimental evidence during the reactor design period (1958--1963) that the heat removal capacity in the fully developed natural circulation cooling mode was relatively high, it was not possible to make a confident prediction of the heat removal capacity during the transition from downflow to natural circulation. In a LOCA scenario where even limited fuelmore » damage occurs and natural circulation is established, fission product gases could be carried from the damaged fuel by steam into areas where operator access is required to maintain the core in a coolable configuration. This would force evacuation of the building and lead to extensive core damage. As a result the HFBR was shut down by the Department of Energy (DOE) and an extensive review of the HFBR was initiated. In an effort to address this issue BNL developed a model designed to predict the heat removal limit during flow reversal that was found to be in good agreement with the test results. Currently a thermal-hydraulic test program is being developed to provide a more realistic and defensible estimate of the flow reversal heat removal limit so that the reactor power level can be increased.« less
APT Blanket Thermal Analyses of Top Horizontal Row 1 Modules
DOE Office of Scientific and Technical Information (OSTI.GOV)
Shadday, M.A.
1999-09-20
The Accelerator Production of Tritium (APT) cavity flood system (CFS) is designed to be the primary safeguard for the integrity of the blanket modules during loss of coolant accidents (LOCAs). For certain large break LOCAs the CFS also provides backup for the residual heat removal systems (RHRs) in cooling the target assemblies. In the unlikely event that the internal flow passages in a blanket module or target assembly dryout, decay heat in the metal structures will be dissipated to the CFS through the module or assembly walls (i.e., rung outer walls). The target assemblies consist of tungsten targets encased inmore » steel conduits, and they can safely sustain high metal temperatures. Under internally dry conditions, the cavity flood fluid will cool the target assemblies with vigorous nucleate boiling on the external surfaces. However, the metal structures in the blanket modules consist of lead cladded in aluminum, and they have a long-term exposure temperature limit currently set to 150 degrees C. Simultaneous LOCAs in both the target and blanket heat removal systems (HRS) could result in dryout of the target ladders, as well as the horizontal blanket modules above the target. The cavity flood coolant would boil on the outside surfaces of the target ladder rungs, and the resultant steam could reduce the effectiveness of convection heat transfer from the blanket modules to the cavity flood coolant. A two-part analysis was conducted to ascertain if the cavity flood system can adequately cool the blanket modules above the targets, even when boiling is occurring on the outer surfaces of the target ladder rungs. The first part of the analysis was to model transient thermal conduction in the front top horizontal row 1 module (i.e. top horizontal modules nearest the incoming beam), while varying parametrically the convection heat transfer coefficient (htc) for the external surfaces exposed to the cavity flood flow. This part of the analysis demonstrated that the module could adequately conduct heat to the outer module surfaces, given reasonable values for the convection heat transfer coefficients. The second part of the analysis consisted of two-phase flow modeling of the natural circulation of the cavity flood fluid past the top modules. Slots in the top shield allow the cavity flood fluid to circulate. The required width for these slots, to prevent steam from backing up and blanketing the outer surfaces of the top modules, was determined.« less
48 CFR 37.115-2 - General policy.
Code of Federal Regulations, 2010 CFR
2010-10-01
..., contracting officers must conduct a risk assessment and evaluate, for award on that basis, any proposals... skill levels and its use in key technical positions. [62 FR 44815, Aug. 22, 1997, as amended at 64 FR...
RFC 18001 – Anthraquinone – Supplemental Information
RFC 18001 – Anthraquinone – Supplemental Information demonstrating that National Toxicology Program Technical Report 494 should not be the basis for provisional screening values presented in Appendix A of “Provisional Peer-Reviewed Toxicity Values
DOE Office of Scientific and Technical Information (OSTI.GOV)
Tedeschi, Jonathan R.; Bernacki, Bruce E.; Kelly, James F.
2011-12-31
This report describes research and development efforts toward a novel passive millimeter-wave (mm-wave) electromagnetic imaging device for broad-area search. It addresses the technical challenge of detecting anomalies that occupy a small fraction of a pixel. The purpose of the imager is to pinpoint suspicious locations for cuing subsequent higher-resolution imaging. The technical basis for the approach is to exploit thermal and polarization anomalies that distinguish man-made features from natural features.
Presentation to US-Canada Bilateral Technical Working ...
DHS and EPA have collaborated in the development of a draft charter for Technical Working Group (TWG) to serve as the basis of negotiations of bilateral agreements with other countries. The TWG would provide a mechanism for sharing both response and R&D expertise and experience in the event of a CBRN incident. The membership of each TWG was tailored to provide appropriate support to the incident commander for the particular situation. Some of the same expertise has been engaged in response to the
1990-01-01
Personnel E-6 and below are allowed BAQ on a case by case basis. NAVAL TECHNICAL TRAINING CENTER DETACHMENT FORT DEVENS , MA 1. SHORT TITLE...NAVTECHTRACENDET FT DEVENS , MA 2. ADDRESS: Officer in Charge, Naval Technical Training Center Detachment, Box 91, Fort Devens , MA 01433-5910 74 3. T9I.EPIONE: Monday...Into the Fort Devens area may place them in extrome financial hardship. 5. AVAILABILITY OF ThANSPORTATION: Both Logan (Boston) and Worcester airports
1988-01-01
allowed BAQ on a case by case basis. S3 NAVAL TECHNICAL TRAINING CENTER DETACHMENT FORT DEVENS , MA.5 1. SHORT TITLE: NAVTECHTRACENDET FT DEVENS , MA 2...ADDRESS: Chief Petty Officer in Charge, Naval Technical Training Center Detachment, MacArthur Ave., Building 688, Fort Devens , MA 01433-6301 3. TELEPHONE...units are scarce with a high cost of living. 5. AVAILABILITY OF TRANSPORTATION: Worcester is only 25 to 30 miles from Fort Devens with limited air
Maintaining technical excellence requires a national plan
NASA Technical Reports Server (NTRS)
Davidson, T. F.
1991-01-01
To meet the challenge of technical excellence, AIA established a rocket propulsion committee to develop the National Rocket Propulsion Strategic Plan. Developing such a plan required a broad spectrum of experience and disciplines. The Strategic Plan team needed the participation of industry, government, and academia. The plan provides, if followed, a means for the U.S. to maintain technical excellence and world leadership in rocket propulsion. To implement the National Rocket Propulsion Strategic Plan is to invest in the social, economic, and technological futures of America. The plan lays the basis for upgrading existing propulsion systems and a firm base for future full scale development, production, and operation of rocket propulsion systems for space, defense, and commercial applications.
International Space Station ECLSS Technical Task Agreement Summary Report
NASA Technical Reports Server (NTRS)
Minton-Summers, S.; Ray, C. D.
1996-01-01
A summary of work accomplished under Technical Task Agreement by the Marshall Space Flight Center (MSFC) documents activities regarding the Environmental Control and Life Support Systems (ECLSS) of the International Space Station (ISS) program. These MSFC activities were in-line to the designing, the development, the testing, and the flight of ECLSS equipment. MSFC's unique capabilities for performing integrated system testing and analyses, and its ability to perform some tasks cheaper and faster to support ISS program needs are the basis for the Technical Task Agreement activities. Tasks were completed in the Water Recovery Systems, Air Revitalization Systems, and microbiology areas. The results of each task is described in this summary report.
Development of an AFIT (Air Force Institute of Technology) ADP System Network Model.
1983-12-01
printers. Lastly, after a batch event finishes ’printing’, the turnaround time for each computer and loca- tion may be collected. Resource Module. The...9)), + (IJOBSA(10)) ,(IORG,A( 12)) ,(,AEi4A( 13)) C CNNNN IF JOB JUST FINISHED CPU OR PRINTER IN WAIT MODE THEN SCHEDULE C**** THINK TINE C IF...Modules: CPUAIJ I C Scheduled by. none C C FUNCTION XIOSEC(ICLASSISIZE) P RAMETER (1AXCLS=6,WAXSIZ-6) C -’. CMII COPtION BLOCKS COtON /FACTOR/ DI STRB
DOE Office of Scientific and Technical Information (OSTI.GOV)
Hamm, L.L.
1998-10-07
This report is one of a series of reports that document normal operation and accident simulations for the Accelerator Production of Tritium (APT) blanket heat removal system. These simulations were performed for the Preliminary Safety Analysis Report. This report documents the results of simulations of a Loss-of-Flow Accident (LOFA) where power is lost to all of the pumps that circulate water in the blanket region, the accelerator beam is shut off and neither the residual heat removal nor cavity flood systems operate.
Ecosystem Restoration Research at GWERD
Ground Water and Ecosystems Restoration Division, Ada, OK Mission: Conduct research and technical assistance to provide the scientific basis to support the development of strategies and technologies to protect and restore ground water, surface water, and ecosystems impacted b...
47 CFR 90.723 - Selection and assignment of frequencies.
Code of Federal Regulations, 2010 CFR
2010-10-01
... stations will be considered by the Commission on a case-by-case basis upon submission of a technical analysis indicating that at least 10 dB protection will be provided to an existing Phase I station's...
Near-term feasibility of alternative jet fuels
DOT National Transportation Integrated Search
2009-01-01
This technical report documents the results of a joint study by the Massachusetts Institute of Technology (MIT) and the RAND Corporation on alternative fuels for commercial aviation. The study compared potential alternative jet fuels on the basis of ...
Quality assurance of technical specification approval process
NASA Astrophysics Data System (ADS)
Antsev, V. Yu; Antseva, N. V.; Chernecova, E. A.
2018-03-01
The paper reviews the issue of increasing the efficiency of contract analysis on machine-building plants in accordance with process approach principles and on the basis of better interaction between marketing, finance and accounting, and R&D departments.
40 CFR 98.297 - Records that must be retained.
Code of Federal Regulations, 2011 CFR
2011-07-01
... production of soda ash (tons) (2) Monthly consumption of trona or liquid alkaline feedstock (tons) (3) Annual... technical basis for these estimates must be provided. (5) If you produce soda ash using the liquid alkaline...
40 CFR 98.297 - Records that must be retained.
Code of Federal Regulations, 2012 CFR
2012-07-01
... production of soda ash (tons) (2) Monthly consumption of trona or liquid alkaline feedstock (tons) (3) Annual... technical basis for these estimates must be provided. (5) If you produce soda ash using the liquid alkaline...
40 CFR 98.297 - Records that must be retained.
Code of Federal Regulations, 2014 CFR
2014-07-01
... production of soda ash (tons) (2) Monthly consumption of trona or liquid alkaline feedstock (tons) (3) Annual... technical basis for these estimates must be provided. (5) If you produce soda ash using the liquid alkaline...
40 CFR 98.297 - Records that must be retained.
Code of Federal Regulations, 2010 CFR
2010-07-01
... production of soda ash (tons) (2) Monthly consumption of trona or liquid alkaline feedstock (tons) (3) Annual... technical basis for these estimates must be provided. (5) If you produce soda ash using the liquid alkaline...
40 CFR 98.297 - Records that must be retained.
Code of Federal Regulations, 2013 CFR
2013-07-01
... production of soda ash (tons) (2) Monthly consumption of trona or liquid alkaline feedstock (tons) (3) Annual... technical basis for these estimates must be provided. (5) If you produce soda ash using the liquid alkaline...
46 CFR 189.35-90 - Weight handling gear manufactured prior to March 1, 1968.
Code of Federal Regulations, 2010 CFR
2010-10-01
...) OCEANOGRAPHIC RESEARCH VESSELS INSPECTION AND CERTIFICATION Weight Handling Gear § 189.35-90 Weight handling..., will be accepted on the basis of appropriate tests and examinations should plans or other technical...
Regulatory Guidance for Lightning Protection in Nuclear Power Plants
DOE Office of Scientific and Technical Information (OSTI.GOV)
Kisner, Roger A; Wilgen, John B; Ewing, Paul D
2006-01-01
Abstract - Oak Ridge National Laboratory (ORNL) was engaged by the U.S. Nuclear Regulatory Commission (NRC) Office of Nuclear Regulatory Research (RES) to develop the technical basis for regulatory guidance to address design and implementation practices for lightning protection systems in nuclear power plants (NPPs). Lightning protection is becoming increasingly important with the advent of digital and low-voltage analog systems in NPPs. These systems have the potential to be more vulnerable than older analog systems to the resulting power surges and electromagnetic interference (EMI) when lightning strikes facilities or power lines. This paper discusses the technical basis for guidance tomore » licensees and applicants covered in Regulatory Guide (RG) 1.204, Guidelines for Lightning Protection of Nuclear Power Plants, issued August 2005. RG 1.204 describes guidance for practices that are acceptable to the NRC staff for protecting nuclear power structures and systems from direct lightning strikes and the resulting secondary effects.« less
Regulatory guidance for lightning protection in nuclear power plants
DOE Office of Scientific and Technical Information (OSTI.GOV)
Kisner, R. A.; Wilgen, J. B.; Ewing, P. D.
2006-07-01
Oak Ridge National Laboratory (ORNL) was engaged by the U.S. Nuclear Regulatory Commission (NRC) Office of Nuclear Regulatory Research (RES) to develop the technical basis for regulatory guidance to address design and implementation practices for lightning protection systems in nuclear power plants (NPPs). Lightning protection is becoming increasingly important with the advent of digital and low-voltage analog systems in NPPs. These systems have the potential to be more vulnerable than older analog systems to the resulting power surges and electromagnetic interference (EMI) when lightning strikes facilities or power lines. This paper discusses the technical basis for guidance to licensees andmore » applicants covered in Regulatory Guide (RG) 1.204, Guidelines for Lightning Protection of Nuclear Power Plants, issued August 2005. RG 1.204 describes guidance for practices that are acceptable to the NRC staff for protecting nuclear power structures and systems from direct lightning strikes and the resulting secondary effects. (authors)« less
DOE Office of Scientific and Technical Information (OSTI.GOV)
Korsah, K.; Wood, R.T.; Hassan, M.
This document presents the results of studies sponsored by the Nuclear Regulatory Commission (NRC) to provide the technical basis for environmental qualification of computer-based safety equipment in nuclear power plants. The studies were conducted by Oak Ridge National Laboratory (ORNL), Sandia National Laboratories (SNL), and Brookhaven National Laboratory (BNL). The studies address the following: (1) adequacy of the present test methods for qualification of digital I and C systems; (2) preferred (i.e., Regulatory Guide-endorsed) standards; (3) recommended stressors to be included in the qualification process during type testing; (4) resolution of need for accelerated aging for equipment to be locatedmore » in a benign environment; and (5) determination of an appropriate approach for addressing the impact of smoke in digital equipment qualification programs. Significant findings from the studies form the technical basis for a recommended approach to the environmental qualification of microprocessor-based safety-related equipment in nuclear power plants.« less
DOE Office of Scientific and Technical Information (OSTI.GOV)
Ballinger, Marcel Y.; Gervais, Todd L.; Barnett, J. Matthew
2012-06-05
In 2002, the EPA amended 40 CFR 61 Subpart H and 40 CFR 61 Appendix B Method 114 to include requirements from ANSI/HPS N13.1-1999 Sampling and Monitoring Releases of Airborne Radioactive Substances from the Stack and Ducts of Nuclear Facilities for major emission points. Additionally, the WDOH amended the Washington Administrative Code (WAC) 246-247 Radiation protection-air emissions to include ANSI/HPS N13.1-1999 requirements for major and minor emission points when new permitting actions are approved. A result of the amended regulations is the requirement to prepare a written technical basis for the radiological air emission sampling and monitoring program. A keymore » component of the technical basis is the Potential Impact Category (PIC) assigned to an emission point. This paper discusses the PIC assignments for the Pacific Northwest National Laboratory (PNNL) Integrated Laboratory emission units; this revision includes five PIC categories.« less
Radiological Exposure Devices (RED) Technical Basis for Threat Profile.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Bland, Jesse John; Potter, Charles A.; Homann, Steven
Facilities that manufacture, store or transport significant quantities of radiological material must protect against the risk posed by sabotage events. Much of the analysis of this type of event has been focused on the threat from a radiological dispersion device (RDD) or "dirty bomb" scenario, in which a malicious assailant would, by explosives or other means, loft a significant quantity of radioactive material into a plume that would expose and contaminate people and property. Although the consequences in cost and psychological terror would be severe, no intentional RDD terrorism events are on record. Conversely, incidents in which a victim ormore » victims were maliciously exposed to a Radiological Exposure Device (RED), without dispersal of radioactive material, are well documented. This paper represents a technical basis for the threat profile related to the risk of nefarious use of an RED, including assailant and material characterization. Radioactive materials of concern are detailed in Appendix A.« less
Dunne, Paul; Tasker, Gary
1996-01-01
The reservoirs and pumping stations that comprise the Raritan River Basin water-supply system and its interconnections to the Delaware-Raritan Canal water-supply system, operated by the New Jersey Water Supply Authority (NJWSA), provide potable water to central New Jersey communities. The water reserve of this combined system can easily be depleted by an extended period of below-normal precipitation. Efficient operation of the combined system is vital to meeting the water-supply needs of central New Jersey. In an effort to improve the efficiency of the system operation, the U.S. Geological Survey (USGS), in cooperation with the NJWSA, has developed a computer model that provides a technical basis for evaluating the effects of alternative patterns of operation of the Raritan River Basin water-supply system. This fact sheet describes the model, its technical basis, and its operation.
Wagner, Mathilde; Corcuera-Solano, Idoia; Lo, Grace; Esses, Steven; Liao, Joseph; Besa, Cecilia; Chen, Nelson; Abraham, Ginu; Fung, Maggie; Babb, James S; Ehman, Richard L; Taouli, Bachir
2017-08-01
Purpose To assess the determinants of technical failure of magnetic resonance (MR) elastography of the liver in a large single-center study. Materials and Methods This retrospective study was approved by the institutional review board. Seven hundred eighty-one MR elastography examinations performed in 691 consecutive patients (mean age, 58 years; male patients, 434 [62.8%]) in a single center between June 2013 and August 2014 were retrospectively evaluated. MR elastography was performed at 3.0 T (n = 443) or 1.5 T (n = 338) by using a gradient-recalled-echo pulse sequence. MR elastography and anatomic image analysis were performed by two observers. Additional observers measured liver T2* and fat fraction. Technical failure was defined as no pixel value with a confidence index higher than 95% and/or no apparent shear waves imaged. Logistic regression analysis was performed to assess potential predictive factors of technical failure of MR elastography. Results The technical failure rate of MR elastography at 1.5 T was 3.5% (12 of 338), while it was higher, 15.3% (68 of 443), at 3.0 T. On the basis of univariate analysis, body mass index, liver iron deposition, massive ascites, use of 3.0 T, presence of cirrhosis, and alcoholic liver disease were all significantly associated with failure of MR elastography (P < .004); but on the basis of multivariable analysis, only body mass index, liver iron deposition, massive ascites, and use of 3.0 T were significantly associated with failure of MR elastography (P < .004). Conclusion The technical failure rate of MR elastography with a gradient-recalled-echo pulse sequence was low at 1.5 T but substantially higher at 3.0 T. Massive ascites, iron deposition, and high body mass index were additional independent factors associated with failure of MR elastography of the liver with a two-dimensional gradient-recalled-echo pulse sequence. © RSNA, 2017.
Traffic control device evaluation program : technical report.
DOT National Transportation Integrated Search
2014-01-01
This project was established to provide a means of conducting small scale research activities on an as-needed : basis so that the results could be available within months of starting the specific research. This report : summarizes the research activi...
The Conservation Reserve Program: Planting for the future
Hyberg, Skip; Allen, Arthur
2006-01-01
Proceedings are now available from a scientific and technical forum held to review ongoing and planned research, identify lessons learned, and determine future research needs for the purpose of developing a rigorous scientific basis for future CRP policy discussions.
The Extravehicular Mobility Unit (EMU): Proven hardware for Satellite Servicing
NASA Technical Reports Server (NTRS)
1982-01-01
A general technical description of the extravehicular mobility unit (EMU) is given. The description provides a basis for understanding EMU mobility capabilities and the environments a payload is exposed to in the vicinity of an EMU.
47 CFR 97.1 - Basis and purpose.
Code of Federal Regulations, 2014 CFR
2014-10-01
... skills in both the communication and technical phases of the art. (d) Expansion of the existing reservoir... Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES AMATEUR RADIO... noncommercial communication service, particularly with respect to providing emergency communications. (b...
47 CFR 97.1 - Basis and purpose.
Code of Federal Regulations, 2011 CFR
2011-10-01
... skills in both the communication and technical phases of the art. (d) Expansion of the existing reservoir... Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES AMATEUR RADIO... noncommercial communication service, particularly with respect to providing emergency communications. (b...
47 CFR 97.1 - Basis and purpose.
Code of Federal Regulations, 2012 CFR
2012-10-01
... skills in both the communication and technical phases of the art. (d) Expansion of the existing reservoir... Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES AMATEUR RADIO... noncommercial communication service, particularly with respect to providing emergency communications. (b...
47 CFR 97.1 - Basis and purpose.
Code of Federal Regulations, 2013 CFR
2013-10-01
... skills in both the communication and technical phases of the art. (d) Expansion of the existing reservoir... Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES AMATEUR RADIO... noncommercial communication service, particularly with respect to providing emergency communications. (b...
Final Rule for Procedures for Testing Highway and Nonroad Engines and Omnibus Technical Amendments
This common set of test requirements is intended to streamline laboratory efforts for EPA and industry and to form the basis for internationally harmonized test procedures for nearly all categories of engines.
47 CFR 97.1 - Basis and purpose.
Code of Federal Regulations, 2010 CFR
2010-10-01
... skills in both the communication and technical phases of the art. (d) Expansion of the existing reservoir... Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES AMATEUR RADIO... noncommercial communication service, particularly with respect to providing emergency communications. (b...
Cui, Jinshu; Rosoff, Heather; John, Richard S
2018-05-01
Many studies have investigated public reactions to nuclear accidents. However, few studies focused on more common events when a serious accident could have happened but did not. This study evaluated public response (emotional, cognitive, and behavioral) over three phases of a near-miss nuclear accident. Simulating a loss-of-coolant accident (LOCA) scenario, we manipulated (1) attribution for the initial cause of the incident (software failure vs. cyber terrorist attack vs. earthquake), (2) attribution for halting the incident (fail-safe system design vs. an intervention by an individual expert vs. a chance coincidence), and (3) level of uncertainty (certain vs. uncertain) about risk of a future radiation leak after the LOCA is halted. A total of 773 respondents were sampled using a 3 × 3 × 2 between-subjects design. Results from both MANCOVA and structural equation modeling (SEM) indicate that respondents experienced more negative affect, perceived more risk, and expressed more avoidance behavioral intention when the near-miss event was initiated by an external attributed source (e.g., earthquake) compared to an internally attributed source (e.g., software failure). Similarly, respondents also indicated greater negative affect, perceived risk, and avoidance behavioral intentions when the future impact of the near-miss incident on people and the environment remained uncertain. Results from SEM analyses also suggested that negative affect predicted risk perception, and both predicted avoidance behavior. Affect, risk perception, and avoidance behavior demonstrated high stability (i.e., reliability) from one phase to the next. © 2017 Society for Risk Analysis.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Wadhwani, K.C.; Murphy, V.A.; Rapoport, S.I.
1991-04-01
Unidirectional fluxes of 45Ca, 36Cl, and of (3H)mannitol from blood into the sciatic nerve and cerebral cortex were determined from 5- and 15-min uptakes of these tracers after an intravenous (i.v.) bolus injection in awake rats. Rats were fed diets for 8 wk, that had either a low (0.01% wt/wt), normal (0.67%), or high (3%) Ca content. Plasma (Ca) was 32% less and 11% more in rats fed low (LOCA) and high Ca diets (HICA), respectively, than in rats fed a normal Ca diet (CONT). The mean permeability-surface area product (PA) of 45Ca at the blood-nerve barrier was about eightfoldmore » higher than at the blood-brain barrier in the same animals and did not differ significantly between groups (greater than 0.05). Mean PA ratios of 45Ca/36Cl for the blood-nerve and blood-brain barriers in CONT rats, 0.52 {plus minus} 0.04 and 0.40 {plus minus} 0.02, respectively, were not significantly different from corresponding ratios in LOCA and HICA groups, and corresponded to the aqueous limiting diffusion ratio (0.45). The authors results show no evidence for concentration-dependent transport of Ca over a plasma (Ca) range of 0.8-1.4 mmol/liter at the blood-nerve barrier of the rat peripheral nerve, and suggest that Ca and Cl exchange slowly between nerve and blood via paracellular pathways.« less
21 CFR 26.66 - Designation and listing procedures.
Code of Federal Regulations, 2011 CFR
2011-04-01
... subpart B of this part; (b) A party proposing to add a CAB to the list of such bodies in subpart B of this...) In the event that the other party contests on the basis of documented evidence the technical...
DOT National Transportation Integrated Search
1978-07-01
The Department of Transportation, Transportation Systems Center (TSC), is providing technical assistance to the Federal Railroad Administration (FRA) in a program to improve railroad safety and efficiency by providing a technological basis for improv...
Code of Federal Regulations, 2010 CFR
2010-10-01
...) Most contracts covered by this regulation call for the performance of professional or technical services overseas on a cost-reimbursement basis. The compensation for employees performing such services is... not expected that these employees will receive additional pay, overtime or shift premiums, or...
ERIC Educational Resources Information Center
Bethel, J. S.; Schreuder, G. F.
1976-01-01
Concern for long-term availability of nonrenewable resources has fostered proposals for substitution with renewable resources. Forest products could become the basis for materials substitution and production. Further feasibility studies are needed to determine the technical, economic, energy, and environmental aspects of substitution. (MR)
ORAL PRESENTATION:EPA'S ENVIRONMENTAL PHOTOGRAPHIC INTERPRETATION CENTER (EPIC)
This presentation provides an overview of the remote sensing technical support and research and development activities of the Environmental Photographic Interprettion Center (EPIC). It is the basis for a presentation given at the EPA's Office of Acquisition Management's Annual C...
45 CFR 1614.3 - Range of activities.
Code of Federal Regulations, 2013 CFR
2013-10-01
... assistance, research, advice and counsel, or the use of recipient facilities, libraries, computer assisted... bono basis through the provision of community legal education, training, technical assistance, research, advice and counsel; co-counseling arrangements; or the use of private law firm facilities, libraries...
45 CFR 1614.3 - Range of activities.
Code of Federal Regulations, 2014 CFR
2014-10-01
... assistance, research, advice and counsel, or the use of recipient facilities, libraries, computer assisted... bono basis through the provision of community legal education, training, technical assistance, research, advice and counsel; co-counseling arrangements; or the use of private law firm facilities, libraries...
45 CFR 1614.3 - Range of activities.
Code of Federal Regulations, 2012 CFR
2012-10-01
... assistance, research, advice and counsel, or the use of recipient facilities, libraries, computer assisted... bono basis through the provision of community legal education, training, technical assistance, research, advice and counsel; co-counseling arrangements; or the use of private law firm facilities, libraries...
A Socio-technical Approach for Transient SME Alliances
NASA Astrophysics Data System (ADS)
Rezgui, Yacine
The paper discusses technical requirements to promote the adoption of alliance modes of operation by SMEs in the construction sector. These requirements have provided a basis for specifying a set of functionality to support the collaboration and cooperation needs of SMEs. While service-oriented architectures and semantic web services provide the middleware technology to implement the identified functionality, a number of key technical limitations have been identified, including lack of support for the dynamic and non-functional characteristics of SME alliances distributed business processes, lack of execution monitoring functionality to manage running business processes, and lack of support for semantic reasoning to enable SME business process service composition. The paper examines these issues and provides key directions for supporting SME alliances effectively.
Prefocal station mechanical design concept study for the E-ELT
NASA Astrophysics Data System (ADS)
Jolley, Paul; Brunetto, Enzo; Frank, Christoph; Lewis, Steffan; Marchetti, Enrico
2016-07-01
The Nasmyth platforms of the E-ELT will contain one Prefocal Station (PFS) each. The main PFS functional requirements are to provide a focal plane to the three Nasmyth focal stations and the Coudé focus, optical sensing supporting telescope low order optimisation and seeing limited image quality, and optical sensing supporting characterising and phasing of M1 and other telescope subsystems. The PFS user requirements are used to derive the PFS technical requirements specification that will form the basis for design, development and production of the system. This specification process includes high-level architectural decisions and technical performance budget allocations. The mechanical design concepts reported here have been developed in order to validate key system specifications and associated technical budgets.
Technical requirements for bioassay support services
DOE Office of Scientific and Technical Information (OSTI.GOV)
Hickman, D.P.; Anderson, A.L.
1991-05-01
This document provides the technical basis for the Chem-Nuclear Geotech (Geotech) bioassay program. It includes information and details that can be used as a model in providing technical contents and requirements for bioassay laboratory support, either internally or in solicitations by Geotech to obtain subcontractor laboratory support. It provides a detailed summary and description of the types of bioassay samples to be expected in support of Geotech remedial projects for the US Department of Energy and the bioassay services and analytical requirements necessary to process such samples, including required limits of sensitivity. General responsibilities of the bioassay laboratory are alsomore » addressed, including quality assurance. Peripheral information of importance to the program is included in the appendices of this document. 7 tabs.« less
DOE Office of Scientific and Technical Information (OSTI.GOV)
NONE
1995-06-01
This Technical Memorandum, was developed under Work Breakdown Structure 1.4.12.6.1.01.41.12.02. 11 (Activity Data Sheet 3301, ``WAG 1``). This document provides the Environmental Restoration Program with analytical results from liquid and sludge samples from the Gunite and Associated Tanks (GAAT). Information provided in this report forms part of the technical basis for criticality safety, systems safety, engineering design, and waste management as they apply to the GAAT treatability study and remediation.
Federal Register 2010, 2011, 2012, 2013, 2014
2011-08-12
... Assistance Center on Social-Emotional Intervention for Young Children (CFDA No. 84.326B) and allow for the... services to respond to State needs prioritized on the basis of results of current needs-analyses and...
77 FR 59768 - Shipping and Transportation; Technical, Organizational, and Conforming Amendments
Federal Register 2010, 2011, 2012, 2013, 2014
2012-10-01
.... Abbreviations II. Regulatory History III. Basis and Purpose IV. Background V. Regulatory Analyses A. Regulatory....S.C. United States Code II. Regulatory History We did not publish a notice of proposed rulemaking... its place, the text ``(CG-ENG)''. [[Page 59778
43 CFR 41.415 - Access to course offerings.
Code of Federal Regulations, 2010 CFR
2010-10-01
... on such basis, including health, physical education, industrial, business, vocational, technical... physical education at the elementary school level, the recipient shall comply fully with this section as... September 29, 2000. (2) This section does not prohibit grouping of students in physical education classes...
6 CFR 17.415 - Access to course offerings.
Code of Federal Regulations, 2010 CFR
2010-01-01
... students on such basis, including health, physical education, industrial, business, vocational, technical, home economics, music, and adult education courses. (b)(1) With respect to physical education classes..., 2003. (2) This section does not prohibit grouping of students in physical education classes and...
28 CFR 54.415 - Access to course offerings.
Code of Federal Regulations, 2010 CFR
2010-07-01
... basis, including health, physical education, industrial, business, vocational, technical, home economics, music, and adult education courses. (b)(1) With respect to classes and activities in physical education... September 29, 2000. (2) This section does not prohibit grouping of students in physical education classes...
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
1979-12-01
The document contains a discussion of the technical rationale for effluent limitations guidelines for the Shipbuilding and Repair Point Source Category, and the control and treatment technologies which form the basis for these guidelines.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
This manual is a guide to use the file protection mechanisms available on the Martin Marietta Energy Systems, Inc. Scientific and Technical Computing (STC) System VAXes. User identification codes (UICs) and general identifiers are discussed as a basis for understanding UIC-based and access control list (ACL) protection. 5 figs.
Uncertainty Management in Urban Water Engineering Adaptation to Climate Change
Current water resource planning and engineering assume a stationary climate, in which the observed historical water flow rate and water quality variations are often used to define the technical basis. When the non-stationarity is considered, however, climate change projection co...
Chitale, Rohan; Ghobrial, George M; Lobel, Darlene; Harrop, James
2013-10-01
The learning and development of technical skills are paramount for neurosurgical trainees. External influences and a need for maximizing efficiency and proficiency have encouraged advancements in simulator-based learning models. To confirm the importance of establishing an educational curriculum for teaching minimally invasive techniques of pedicle screw placement using a computer-enhanced physical model of percutaneous pedicle screw placement with simultaneous didactic and technical components. A 2-hour educational curriculum was created to educate neurosurgical residents on anatomy, pathophysiology, and technical aspects associated with image-guided pedicle screw placement. Predidactic and postdidactic practical and written scores were analyzed and compared. Scores were calculated for each participant on the basis of the optimal pedicle screw starting point and trajectory for both fluoroscopy and computed tomographic navigation. Eight trainees participated in this module. Average mean scores on the written didactic test improved from 78% to 100%. The technical component scores for fluoroscopic guidance improved from 58.8 to 52.9. Technical score for computed tomography-navigated guidance also improved from 28.3 to 26.6. Didactic and technical quantitative scores with a simulator-based educational curriculum improved objectively measured resident performance. A minimally invasive spine simulation model and curriculum may serve a valuable function in the education of neurosurgical residents and outcomes for patients.
Chang, De-Hua; Mammadov, Kamal; Hickethier, Tilman; Borggrefe, Jan; Hellmich, Martin; Maintz, David; Kabbasch, Christoph
2017-01-01
Evaluation of the efficacy of single-shot, low-dose urokinase administration for the treatment of port catheter-associated fibrin sheaths. Forty-six patients were retrospectively evaluated for 54 episodes of port catheter dysfunction. The presence of a fibrin sheath was detected by angiographic contrast examinations. On an outpatient basis, patients subsequently received thrombolysis consisting of a single injection of urokinase (15.000 IU in 1.5 mL normal saline) through the port system. A second attempt was made in cases of treatment failure. Patients were followed up for technical success, complications and long-term outcome. Port dysfunction occurred at a median of 117 days after implantation (range: 7-825 days). The technical success after first port dysfunction by thrombolysis was 87% (40/46); thereof, initial thrombolysis was effective in 78% (36/46). Nine patients (20%) received a second dose of urokinase after previous treatment failure. Follow-up was available for 26 of 40 patients after successful thrombolysis. In 8 of these, rethrombosis occurred after a median of 98 days (range: 21-354 days), whereby rethrombolysis was effective in 5 of 7 (63%) patients. The overall success of all thrombolyses performed was 70% (45/64). No procedure-related technical or clinical complications occurred. After first favorable thrombolysis, a Kaplan-Meier analysis yielded a 30-, 90- and 180-day probability of patency of 96%, 87% and 81%. Thrombolytic therapy on an outpatient basis appears to be a safe and efficient. Three-month patency rates are comparable to more invasive treatment options, including catheter exchange over a guide wire and percutaneous fibrin sheath stripping.
Chang, De-Hua; Mammadov, Kamal; Hickethier, Tilman; Borggrefe, Jan; Hellmich, Martin; Maintz, David; Kabbasch, Christoph
2017-01-01
Purpose Evaluation of the efficacy of single-shot, low-dose urokinase administration for the treatment of port catheter-associated fibrin sheaths. Methods Forty-six patients were retrospectively evaluated for 54 episodes of port catheter dysfunction. The presence of a fibrin sheath was detected by angiographic contrast examinations. On an outpatient basis, patients subsequently received thrombolysis consisting of a single injection of urokinase (15.000 IU in 1.5 mL normal saline) through the port system. A second attempt was made in cases of treatment failure. Patients were followed up for technical success, complications and long-term outcome. Results Port dysfunction occurred at a median of 117 days after implantation (range: 7–825 days). The technical success after first port dysfunction by thrombolysis was 87% (40/46); thereof, initial thrombolysis was effective in 78% (36/46). Nine patients (20%) received a second dose of urokinase after previous treatment failure. Follow-up was available for 26 of 40 patients after successful thrombolysis. In 8 of these, rethrombosis occurred after a median of 98 days (range: 21–354 days), whereby rethrombolysis was effective in 5 of 7 (63%) patients. The overall success of all thrombolyses performed was 70% (45/64). No procedure-related technical or clinical complications occurred. After first favorable thrombolysis, a Kaplan–Meier analysis yielded a 30-, 90- and 180-day probability of patency of 96%, 87% and 81%. Conclusion Thrombolytic therapy on an outpatient basis appears to be a safe and efficient. Three-month patency rates are comparable to more invasive treatment options, including catheter exchange over a guide wire and percutaneous fibrin sheath stripping. PMID:28182117
Development and Validation of Accident Models for FeCrAl Cladding
DOE Office of Scientific and Technical Information (OSTI.GOV)
Gamble, Kyle Allan Lawrence; Hales, Jason Dean
2016-08-01
The purpose of this milestone report is to present the work completed in regards to material model development for FeCrAl cladding and highlight the results of applying these models to Loss of Coolant Accidents (LOCA) and Station Blackouts (SBO). With the limited experimental data available (essentially only the data used to create the models) true validation is not possible. In the absence of another alternative, qualitative comparisons during postulated accident scenarios between FeCrAl and Zircaloy-4 cladded rods have been completed demonstrating the superior performance of FeCrAl.
Emergency heat removal system for a nuclear reactor
Dunckel, Thomas L.
1976-01-01
A heat removal system for nuclear reactors serving as a supplement to an Emergency Core Cooling System (ECCS) during a Loss of Coolant Accident (LOCA) comprises a plurality of heat pipes having one end in heat transfer relationship with either the reactor pressure vessel, the core support grid structure or other in-core components and the opposite end located in heat transfer relationship with a heat exchanger having heat transfer fluid therein. The heat exchanger is located external to the pressure vessel whereby excessive core heat is transferred from the above reactor components and dissipated within the heat exchanger fluid.
1983-09-01
F.P. PX /AMPZIJ/ REFH /AMPZIJ/ REFV /AI4PZIJ/ * RHOX /AI4PZIJ/ RHOY /At4PZIJ/ RHOZ /AI4PZIJ/ S A-ZJ SA /AMPZIJ/ SALP /AMPZIJ/ 6. CALLING ROUTINE: FLDDRV...US3NG ALGORITHM 72 COMPUTE P- YES .~:*:.~~ USING* *. 1. NAME: PLAINT (GTD) ] 2. PURPOSE: To determine if a ray traveling from a given source loca...determine if a source ray reflection from plate MP occurs. If a ray traveling from the source image location in the reflected ray direction passes through
DOE Office of Scientific and Technical Information (OSTI.GOV)
Honeycutt, M.E.; Jarvis, A.S.; McFarland, V.A.
1995-07-01
This technical note is the third in a series of three that outline and describe the principal methods that have been developed to test the potential of environmental contaminants to cause mutagenic, carcinogenic, and teratogenic effects. The first in this series (EEDP-04-24) describes methods used to discern genotoxic effects at the sub cellular level, while the second (EEDP-04-25) describes methods used to discern genotoxic effects at the cellular and organ/organism level. Recent literature citations for each topic referenced in this series of technical notes are provided in this technical note, in addition to a glossary of terms. The information inmore » these technical notes is intended to provide Corps of Engineers personnel with a working knowledge of the terminology and conceptual basis of genotoxicity testing. To develop an improved understanding of the concepts of genotoxicity, readers are encouraged to review A Primer in Genotoxicity (Jarvis, Reilly, and Lutz 1993), presented in Volume D-93-3 of the Environmental Effects of Dredging information exchange bulletin.« less
78 FR 77606 - Security Requirements for Facilities Storing Spent Nuclear Fuel
Federal Register 2010, 2011, 2012, 2013, 2014
2013-12-24
... regulatory basis; availability of responses to public comments. SUMMARY: The U.S. Nuclear Regulatory... to Carol Gallagher; telephone: 301-287- 3422; email: [email protected] . For technical... Nuclear Security and Incident Response, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001...
14 CFR 1253.415 - Access to course offerings.
Code of Federal Regulations, 2010 CFR
2010-01-01
... students on such basis, including health, physical education, industrial, business, vocational, technical... physical education at the elementary school level, the recipient shall comply fully with this section as... September 29, 2000. (2) This section does not prohibit grouping of students in physical education classes...
13 CFR 113.415 - Access to course offerings.
Code of Federal Regulations, 2010 CFR
2010-01-01
... students on such basis, including health, physical education, industrial, business, vocational, technical... physical education at the elementary school level, the recipient shall comply fully with this section as... September 29, 2000. (2) This section does not prohibit grouping of students in physical education classes...
18 CFR 1317.415 - Access to course offerings.
Code of Federal Regulations, 2010 CFR
2010-04-01
... students on such basis, including health, physical education, industrial, business, vocational, technical... physical education at the elementary school level, the recipient shall comply fully with this section as... September 29, 2000. (2) This section does not prohibit grouping of students in physical education classes...
45 CFR 618.415 - Access to course offerings.
Code of Federal Regulations, 2010 CFR
2010-10-01
... students on such basis, including health, physical education, industrial, business, vocational, technical... physical education at the elementary school level, the recipient shall comply fully with this section as... September 29, 2000. (2) This section does not prohibit grouping of students in physical education classes...
31 CFR 28.415 - Access to course offerings.
Code of Federal Regulations, 2010 CFR
2010-07-01
... students on such basis, including health, physical education, industrial, business, vocational, technical... physical education at the elementary school level, the recipient shall comply fully with this section as... September 29, 2000. (2) This section does not prohibit grouping of students in physical education classes...
41 CFR 101-4.415 - Access to course offerings.
Code of Federal Regulations, 2010 CFR
2010-07-01
... basis, including health, physical education, industrial, business, vocational, technical, home economics, music, and adult education courses. (b)(1) With respect to classes and activities in physical education... September 29, 2000. (2) This section does not prohibit grouping of students in physical education classes...
15 CFR 8a.415 - Access to course offerings.
Code of Federal Regulations, 2010 CFR
2010-01-01
... students on such basis, including health, physical education, industrial, business, vocational, technical... physical education at the elementary school level, the recipient shall comply fully with this section as... September 29, 2000. (2) This section does not prohibit grouping of students in physical education classes...
RECOMMENDED FOUNDATION FILL MATERIALS CONSTRUCTION STANDARD OF THE FLORIDA RADON RESEARCH PROGRAM
The report summarizes the technical basis for a recommended foundation fill materials standard for new construction houses in Florida. he radon-control construction standard was developed by the Florida Radon Research Program (FRRP). ill material standards are formulated for: (1)...
ERIC Educational Resources Information Center
Ohio State Dept. of Education, Columbus. Div. of Career-Technical and Adult Education.
This document presents the Ohio Integrated Technical and Academic Competency profile for sports marketing. The profile is to serve as the basis for curriculum development in Ohio's secondary, adult, and postsecondary programs. The profile includes a comprehensive listing of 999 specialty key indicators for evaluating mastery of 113 competencies in…
76 FR 30945 - Submission for OMB Review; Comment Request
Federal Register 2010, 2011, 2012, 2013, 2014
2011-05-27
... Developmental Disabilities Assistance and Bill of Rights Act, as one basis for providing technical assistance (e... DEPARTMENT OF HEALTH AND HUMAN SERVICES Administration for Children and Families Submission for OMB Review; Comment Request Title: State Developmental Disabilities Council 5-Year State Plan. OMB No...
76 FR 31614 - Submission for OMB Review; Comment Request
Federal Register 2010, 2011, 2012, 2013, 2014
2011-06-01
... Developmental Disabilities Assistance and Bill of Rights Act, as one basis for providing technical assistance (e... DEPARTMENT OF HEALTH AND HUMAN SERVICES Administration for Children and Families Submission for OMB Review; Comment Request Title: State Developmental Disabilities Council 5-Year State Plan. OMB No...
Uncertainty Management in Urban Water Engineering Adaptation to Climate Change - abstract
Current water resource planning and engineering assume a stationary climate, in which the observed historical water flow rate and water quality variations are often used to define the technical basis. When the non-stationarity is considered, however, climate change projection co...
45 CFR 1614.3 - Range of activities.
Code of Federal Regulations, 2010 CFR
2010-10-01
... legal research systems or other resources. (c) The specific methods to be undertaken by a recipient to... bono basis through the provision of community legal education, training, technical assistance, research..., computer-assisted legal research systems or other resources; and (2) Support provided by the recipient in...
Tank characterization report for single-shell tank 241-C-109
DOE Office of Scientific and Technical Information (OSTI.GOV)
Simpson, B.C.
1997-05-23
One of the major functions of the Tank Waste Remediation System (TWRS) is to characterize wastes in support of waste management and disposal activities at the Hanford Site. Analytical data from sampling and analysis, along with other available information about a tank, are compiled and maintained in a tank characterization report (TCR). This report and its appendices serve as the TCR for single-shell tank 241-C-109. The objectives of this report are: (1) to use characterization data in response to technical issues associated with tank 241 C-109 waste; and (2) to provide a standard characterization of this waste in terms ofmore » a best-basis inventory estimate. The response to technical issues is summarized in Section 2.0, and the best-basis inventory estimate is presented in Section 3.0. Recommendations regarding safety status and additional sampling needs are provided in Section 4.0. Supporting data and information are contained in the appendices.« less
Project of the demonstration center of proton therapy at DLNP JINR
NASA Astrophysics Data System (ADS)
Syresin, E. M.; Bokor, J.; Breev, V. M.; Karamysheva, G. A.; Kazarinov, M. Yu.; Morozov, N. A.; Mytsin, G. V.; Shakun, N. G.; Shvidky, S. V.; Shirkov, G. D.
2015-07-01
JINR is one of the leading research centers of proton therapy in Russia. The modern technique of 3D conformal proton radiotherapy was first effectuated in Russia in this center, and now it is effectively used in regular treatment sessions. A special Medial Technical Complex (MTC) was created at JINR on the basis of a phasotron used for proton treatment. About 100 patients undergo a course of fractionated treatment here every year. Over the last 14 years since the startup of the Dubna radiological department, more than 1000 patients have been treated by protons. The project of the demonstration center of proton therapy is proposed on the basis of a superconducting 230 MeV synchrocyclotron S2C2 of new IBA compact proton system Proteus ONE. The superconducting synchrocyclotron is planned to for instillation instead of a phasotron in the Medical Technical Complex, DLNP. For the demonstration center, a new transport line will be designed for beam delivery to the medical cabin.
Technical basis for the use of a correlated neutron source in the uranium neutron coincidence collar
Root, Margaret A.; Menlove, Howard Olsen; Lanza, Richard C.; ...
2017-01-16
Active neutron coincidence systems are commonly used by international inspectorates to verify a material balance across the various stages of the nuclear fuel cycle. The Uranium Neutron Coincidence Collar (UNCL) is one such instrument; it is used to measure the linear density of 235U (g 235U/cm of active length in assembly) in fresh light water reactor fuel in nuclear fuel fabrication facilities. The UNCL and other active neutron interrogation detectors have historically relied on americium lithium ( 241AmLi) sources to induce fission within the sample in question. Californium-252 is under consideration as a possible alternative to the traditional 241AmLi source.more » Finally, this work relied upon a combination of experiments and Monte Carlo simulations to demonstrate the technical basis for the replacement of 241AmLi sources with 252Cf sources by evaluating the statistical uncertainty in the measurements incurred by each source and assessing the penetrability of neutrons from each source for the UNCL.« less
Technical basis for the use of a correlated neutron source in the uranium neutron coincidence collar
DOE Office of Scientific and Technical Information (OSTI.GOV)
Root, Margaret A.; Menlove, Howard Olsen; Lanza, Richard C.
Active neutron coincidence systems are commonly used by international inspectorates to verify a material balance across the various stages of the nuclear fuel cycle. The Uranium Neutron Coincidence Collar (UNCL) is one such instrument; it is used to measure the linear density of 235U (g 235U/cm of active length in assembly) in fresh light water reactor fuel in nuclear fuel fabrication facilities. The UNCL and other active neutron interrogation detectors have historically relied on americium lithium ( 241AmLi) sources to induce fission within the sample in question. Californium-252 is under consideration as a possible alternative to the traditional 241AmLi source.more » Finally, this work relied upon a combination of experiments and Monte Carlo simulations to demonstrate the technical basis for the replacement of 241AmLi sources with 252Cf sources by evaluating the statistical uncertainty in the measurements incurred by each source and assessing the penetrability of neutrons from each source for the UNCL.« less
The virtuous pathologist. An ethical basis for laboratory medicine.
Stempsey, W E
1989-06-01
The profession of pathology is a practice in the technical sense used by many philosophers. Such practices have internal goods, which, it is hoped, lead to the attainment of a certain end. The ultimate end of the practice of pathology must be the good of the patient in terms of restoring health. Key internal goods in pathology are technical competence, the proper pathologist-patient relationship, and the proper pathologist-clinician relationship. Virtues are predispositions to act so as to attain the end of the practice and further the internal goods. Technical growth in the practice of pathology must be accompanied by continued attempts to articulate the goals and internal goods of the practice. Only if pathologists are predisposed to act in accordance with proper goals will an ethical practice be assured.
Successful prevention of public exposure to arsenic in ground-water resources impacted by natural sources or contaminated sites is dependent on scientifically-based strategies for site remediation and water resource management. Research within the National Risk Management Resear...
Functional Internet Literacy: Required Cognitive Skills with Implications for Instruction
ERIC Educational Resources Information Center
Johnson, Genevieve Marie
2007-01-01
Patterns of typical Internet use provide the basis for defining "functional Internet literacy." Internet use commonly includes communication, information, recreation, and commercial activities. Technical competence with connectivity, security, and downloads is a prerequisite for using the Internet for such activities. Bloom's taxonomy of cognitive…
38 CFR 62.62 - Religious organizations.
Code of Federal Regulations, 2013 CFR
2013-07-01
... definition, practice, and expression of its religious beliefs, provided that it does not use direct financial... technical assistance, on the basis of religion or religious belief. (f) If a State or local government... 38 Pensions, Bonuses, and Veterans' Relief 2 2013-07-01 2013-07-01 false Religious organizations...
38 CFR 62.62 - Religious organizations.
Code of Federal Regulations, 2012 CFR
2012-07-01
... definition, practice, and expression of its religious beliefs, provided that it does not use direct financial... technical assistance, on the basis of religion or religious belief. (f) If a State or local government... 38 Pensions, Bonuses, and Veterans' Relief 2 2012-07-01 2012-07-01 false Religious organizations...
38 CFR 62.62 - Religious organizations.
Code of Federal Regulations, 2014 CFR
2014-07-01
... definition, practice, and expression of its religious beliefs, provided that it does not use direct financial... technical assistance, on the basis of religion or religious belief. (f) If a State or local government... 38 Pensions, Bonuses, and Veterans' Relief 2 2014-07-01 2014-07-01 false Religious organizations...
38 CFR 62.62 - Religious organizations.
Code of Federal Regulations, 2011 CFR
2011-07-01
... definition, practice, and expression of its religious beliefs, provided that it does not use direct financial... technical assistance, on the basis of religion or religious belief. (f) If a State or local government... 38 Pensions, Bonuses, and Veterans' Relief 2 2011-07-01 2011-07-01 false Religious organizations...
The Neurobiological Basis of Reading.
ERIC Educational Resources Information Center
Joseph, Jane; Noble, Kimberly; Eden, Guinevere
2001-01-01
This paper reviews studies using positron emission tomography and functional magnetic resonance imaging in adults to study the reading process and notes that general networks of regions seem to be uniquely associated with different components of the reading process. Findings are evaluated in light of technical and experimental limitations and…
30 CFR 402.4 - Information collection.
Code of Federal Regulations, 2014 CFR
2014-07-01
... 30 Mineral Resources 2 2014-07-01 2014-07-01 false Information collection. 402.4 Section 402.4... WATER-RESOURCES TECHNOLOGY DEVELOPMENT PROGRAM General § 402.4 Information collection. The information... collected will contain technical information that will be used by the USGS as a basis for selection and...
30 CFR 402.4 - Information collection.
Code of Federal Regulations, 2013 CFR
2013-07-01
... 30 Mineral Resources 2 2013-07-01 2013-07-01 false Information collection. 402.4 Section 402.4... WATER-RESOURCES TECHNOLOGY DEVELOPMENT PROGRAM General § 402.4 Information collection. The information... collected will contain technical information that will be used by the USGS as a basis for selection and...
Federal Register 2010, 2011, 2012, 2013, 2014
2012-03-20
...; Swimming Pools AGENCY: Civil Rights Division, Department of Justice. ACTION: Final rule. SUMMARY: By this.... FOR FURTHER INFORMATION CONTACT: Allison Nichol, Chief, Disability Rights Section, Civil Rights... Rights Division published a technical assistance document entitled ``ADA 2010 Revised Requirements...
Administrative Record Index for SMA 4 - Former Chemical Plant and SMA 5 - Former Pig Iron Foundry
The Administrative Record Index lists the documents, data and other technical information that the EPA - Region 4 considered in preparing the Statement of Basis for the Former Chemical Plant and the Former Pig Iron Foundry at ERP Compliant Coke.
REPLACEMENT OF HAZARDOUS MATERIAL IN WIDE WEB FLEXOGRAPHIC PRINTING PROCESS
This study examined on a technical and economic basis, the effect of substituting water-based inks in a flexographic printing process. o reduce volatile organic compound (VOC) emissions by switching from the use of solvent-based inks to water based inks, several equipment modific...
REPLACEMENT OF HAZARDOUS MATERIAL IN WIDE WEB FLEXOGRAPHIC PRINTING PROCESS
This study examined on a technical and economic basis, the effect of substituting water-based inks in a flexographic printing process. To reduce volatile organic compound (VOC) emissions by switching from the use of solvent-based inks to water based inks, several equipment modifi...
Digital Scholarship and Open Access
ERIC Educational Resources Information Center
Losoff, Barbara; Pence, Harry E.
2010-01-01
Open access publications provide scholars with unrestricted access to the "conversation" that is the basis for the advancement of knowledge. The large number of open access journals, archives, and depositories already in existence demonstrates the technical and economic viability of providing unrestricted access to the literature that is the…
EPA Assessment of Risks from Radon in Homes
This 2003 document will serve as a technical basis for EPA’s estimates of risk from radon in homes. It provides estimates of the risk per unit exposure and projects the number of fatal lung cancers occurring in the U.S. population each year due to radon.
STATEWIDE MAPPING OF FLORIDA SOIL RADON POTENTIALS VOLUME 1. TECHNICAL REPORT
The report gives results of a statewide mapping of Florida soil radon potentials. Statewide maps identify Florida Regions with different levels of soil radon potential. The maps provide scientific estimates of regional radon potentials that can serve as a basis for implementing r...
25 CFR 83.10 - Processing of the documented petition.
Code of Federal Regulations, 2010 CFR
2010-04-01
... proposed findings, the Assistant Secretary shall prepare a report summarizing the evidence, reasoning, and... shall provide technical advice concerning the factual basis for the proposed finding, the reasoning used... party, hold a formal meeting for the purpose of inquiring into the reasoning, analyses, and factual...
Impromptu Teaching Model for Pre-Service Teacher Preparation.
ERIC Educational Resources Information Center
Peterson, Paul E.; Peterson, Susan L.
The Impromptu Teaching Model was designed by the University of Central Arkansas for use by preservice teachers in laboratory teaching experiences. Two teaching exercises, microteaching and reflective teaching, form the basis for impromptu teaching. Microteaching provides teachers with the opportunity to master various technical skills of the…
Open Access to Mexican Academic Production
ERIC Educational Resources Information Center
Adame, Silvia I.; Llorens, Luis
2016-01-01
This paper presents a description of the metadata harvester software development. This system provides access to reliable and quality educational resources, shared by Mexican Universities through their repositories, to anyone with Internet Access. We present the conceptual and contextual framework, followed by the technical basis, the results and…
Aging Study Of EPDM O-Ring Material For The H1616 Shipping Package - Three Year Status
DOE Office of Scientific and Technical Information (OSTI.GOV)
Stefek, T.; Daugherty, W.; Skidmore, E.
This is a 3-year status report for tasks carried out per Task Technical Plan SRNL-STI-2011-00506. A series of tasks/experiments were performed at the Savannah River National Laboratory (SRNL) to monitor the aging performance of ethylene propylene diene monomer (EPDM) O-rings used in the H1616 shipping package. The test data provide a technical basis to extend the annual maintenance of the H1616 shipping package to three years and to predict the life of the EPDM O-rings at the bounding service conditions.
The desirability of education in didactic skills according to medical interns.
Kloek, Anne T; Verbakel, Joshua R A; Bernard, Simone E; Evenboer, Januska; Hendriks, Eef J; Stam, Hanneke
2012-12-01
Since all doctors at some point in their career will be faced with their role as a teacher, it appears desirable that future doctors are educated in didactic skills. At present, however, there are no formal opportunities for developing didactic skills at the majority of Dutch medical faculties. The main question of this study is: How do medical interns perceive the quality and quantity of their education in didactic skills? The Dutch Association for Medical Interns (LOCA) ran a national survey among 1,008 medical interns that measured the interns' self-assessed needs for training in didactic skills during medical school. Almost 80 % of the respondents argue that the mastery of didactic skills composes an essential competency for doctors, with the skill of providing adequate feedback considered to be the most important didactic quality for doctors. Of the respondents, 41 % wish to be educated in didactic skills, both during their medical undergraduate degree and during their subsequent training to become a resident. Teaching while being observed and receiving feedback in this setting is regarded as a particularly valuable didactic method by 74 % of the medical interns. Of the respondents, 82 % would invest time to follow training for the development of didactic skills if it was offered. Medical interns stress the importance of doctors' didactic skills during their clinical internships. Compared with current levels, most interns desire increased attention to the formal development of didactic skills during medical school. Considering the importance of didactic skills and the need for more extensive training, the LOCA advises medical faculties to include more formal didactic training in the medical curriculum.
Geochemical and Hydrologic Controls of Copper-Rich Surface Waters in the Yerba Loca-Mapocho System
NASA Astrophysics Data System (ADS)
Pasten, P.; Montecinos, M.; Coquery, M.; Pizarro, G. E.; Abarca, M. I.; Arce, G. J.
2015-12-01
Andean watersheds in Northern and Central Chile are naturally enriched with metals, many of them associated to sulfide mineralizations related to copper mining districts. The natural and anthropogenic influx of toxic metals into drinking water sources pose a sustainability challenge for cities that need to provide safe water with the smallest footprint. This work presents our study of the transformations of copper in the Yerba Loca-Mapocho system. Our sampling campaign started from the headwaters at La Paloma Glacier and continues to the inlet of the San Enrique drinking water treatment plant, a system feeding municipalities in the Eastern area of Santiago, Chile. Depending on the season, total copper concentrations go as high as 22 mg/L for the upper sections, which become diluted to <5 mg/L downstream. pH ranged from 3 to 5.6 while suspended solids ranged from <10 to 100 mg/L. We used Geochemist Workbench to assess copper speciation and to evaluate the thermodynamic controls for the formation and dissolution of solid phases. A sediment trap was used to concentrate suspended particulate matter, which was analyzed with ICP-MS, TXRF (total reflection X ray fluorescence) and XRD (X-ray diffraction). Major elements detected in the precipitates were Al (200 g/kg), S (60 g/kg), and Cu (6 g/kg). Likely solid phases include hydrous amorphous phases of aluminum hydroxides and sulfates, and copper hydroxides/carbonates. Efforts are undergoing to find the optimal mixing ratios between the acidic stream and more alkaline streams to maximize attenuation of dissolved copper. The results of this research could be used for enhancing in-stream natural attenuation of copper and reducing treatment needs at the drinking water facility. Acknowledgements to Fondecyt 1130936 and Conicyt Fondap 15110020
Takamatsu, Kuniyoshi; Hu, Rui
2014-11-27
A new, highly efficient reactor cavity cooling system (RCCS) with passive safety features without a requirement for electricity and mechanical drive is proposed for high temperature gas cooled reactors (HTGRs) and very high temperature reactors (VHTRs). The RCCS design consists of continuous closed regions; one is an ex-reactor pressure vessel (RPV) region and another is a cooling region having heat transfer area to ambient air assumed at 40 (°C). The RCCS uses a novel shape to efficiently remove the heat released from the RPV with radiation and natural convection. Employing the air as the working fluid and the ambient airmore » as the ultimate heat sink, the new RCCS design strongly reduces the possibility of losing the heat sink for decay heat removal. Therefore, HTGRs and VHTRs adopting the new RCCS design can avoid core melting due to overheating the fuels. The simulation results from a commercial CFD code, STAR-CCM+, show that the temperature distribution of the RCCS is within the temperature limits of the structures, such as the maximum operating temperature of the RPV, 713.15 (K) = 440 (°C), and the heat released from the RPV could be removed safely, even during a loss of coolant accident (LOCA). Finally, when the RCCS can remove 600 (kW) of the rated nominal state even during LOCA, the safety review for building the HTTR could confirm that the temperature distribution of the HTTR is within the temperature limits of the structures to secure structures and fuels after the shutdown because the large heat capacity of the graphite core can absorb heat from the fuel in a short period. Therefore, the capacity of the new RCCS design would be sufficient for decay heat removal.« less
Cheng, Yi-Yu; Qu, Hai-Bin; Zhang, Bo-Li
2016-01-01
A perspective analysis on the technological innovation in pharmaceutical engineering of Chinese medicine unveils a vision on "Future Factory" of Chinese medicine industry in mind. The strategy as well as the technical roadmap of "Chinese medicine industry 4.0" is proposed, with the projection of related core technology system. It is clarified that the technical development path of Chinese medicine industry from digital manufacture to intelligent manufacture. On the basis of precisely defining technical terms such as process control, on-line detection and process quality monitoring for Chinese medicine manufacture, the technical concepts and characteristics of intelligent pharmaceutical manufacture as well as digital pharmaceutical manufacture are elaborated. Promoting wide applications of digital manufacturing technology of Chinese medicine is strongly recommended. Through completely informationized manufacturing processes and multi-discipline cluster innovation, intelligent manufacturing technology of Chinese medicine should be developed, which would provide a new driving force for Chinese medicine industry in technology upgrade, product quality enhancement and efficiency improvement. Copyright© by the Chinese Pharmaceutical Association.
Technical Standards for Nursing Education Programs in the 21st Century.
Ailey, Sarah H; Marks, Beth
The Institute of Medicine (2000, 2002) exposed serious safety problems in the health system and called for total qualitative system change. The Institute of Medicine (2011, 2015) also calls for improving the education of nurses to provide leadership for a redesigned health system. Intertwined with improving education is the need to recruit and retain diverse highly qualified students. Disability is part of diversity inclusion, but current technical standards (nonacademic requirements) for admission to many nursing programs are a barrier to the entry of persons with disabilities. Rehabilitation nurse leaders are in a unique position to improve disability diversity in nursing. The purpose of this paper is to discuss the importance of disability diversity in nursing. The history of existing technical standards used in many nursing programs is reviewed along with examples. On the basis of the concept that disability inclusion is a part of diversity inclusion, we propose a new model of technical standards for nursing education. Rehabilitation nurse leaders can lead in eliminating barriers to persons with disabilities entering nursing.
Chwastyk-Kowalczyk, Jolanta
2015-01-01
This article presents the history of establishment, functioning and the role of "Science and Technology"--quarterly of the Association of Polish Engineers in Great Britain--in shaping Polish technical thought in the environment of Polish engineers and technicians living in exile. The analysis of the content of the journal published in London in the years 1958-2008 made it evident that this official scientific organ of Polish technical intelligentsia edited in 500 copies reaches members of engineering, technical and scientific milieu across many continents. Despite the fact that Polish language dominates in the articles and thanks to the interdisciplinary character of their content - science and technology, biology, the humanities, sociology and others--the journal makes it possible for the reader to participate in an intellectual adventure. "Science and Technology" was created in 1958 on the initiative of Eng. Prof. Roman Wajda in Great Britain, with support of other Polish technical associations abroad, and embraced the achievements and organisational life of the Polish technical milieu dispersed around the world. On the basis of the London Society's archive materials and old annual volumes of the journal, the author listed editors-in-chief, composition of editorial committees, collaborators, determined editing costs, changeable periodicity, successive print shops, seats of editorial office that always followed the Association in Great Britain. She also showed the effort of a handful of members of editorial committees, working on a voluntary basis to obtain materials for the journal; the role of the journal linking Polish engineers and technicians in exile and its function as a link with the Country, as well as its role in the sphere of information and propaganda. Finally, the author made an analysis of the journal's content, focusing on categories of articles published in "Science and Technology" in the years 1958-2008. Methods used by the author in the article: archival, analysis of the press content: qualitative and quantitative.
Toxicity reduction evaluations (TRE) and Toxicity Identification Evaluations (TIE) case examples were the basis of a technical workshop held by SETAC. Techniques to evaluate the mixtures of toxicants by using acute and chronic toxicity endpoints that incorporate marine, estuarine...
41 CFR 105-50.304 - Services provided through revolving funds.
Code of Federal Regulations, 2010 CFR
2010-07-01
... OR TECHNICAL SERVICES TO STATE AND LOCAL UNITS OF GOVERNMENT 50.3-Principles Governing Reimbursements... local governments on the same basis; i.e., the same pricing method, billing forms, and billing support... 41 Public Contracts and Property Management 3 2010-07-01 2010-07-01 false Services provided...
41 CFR 105-50.304 - Services provided through revolving funds.
Code of Federal Regulations, 2011 CFR
2011-01-01
... OR TECHNICAL SERVICES TO STATE AND LOCAL UNITS OF GOVERNMENT 50.3-Principles Governing Reimbursements... local governments on the same basis; i.e., the same pricing method, billing forms, and billing support... 41 Public Contracts and Property Management 3 2011-01-01 2011-01-01 false Services provided...
Past into Future: Capturing Library Expertise in a Virtual Library.
ERIC Educational Resources Information Center
Daniels, Wayne; Scardellato, Kathy
1999-01-01
Reports on an initiative by the Toronto Public Library to create the "Virtual Reference Library" (VRL). Describes the first service to be offered, a Dewey application called "Science Net." Discusses the VRL and its precursor, objectives, basis for its funding, technical aspects, progress to date and future direction. (AEF)
NASA Technical Reports Server (NTRS)
1973-01-01
Primary goals of the Planetary Quarantine Program are defined and used to provide a basis for planning and source allocation toward the development of planetary quarantine measures for the following automated spacecrafts: Viking 1975, Pioneer F and G, and Mariner Venus-Mercury 1973.
Technician Education Yearbook 1973-1974.
ERIC Educational Resources Information Center
Prakken, Lawrence D., Ed.
In this sixth (1973-74) edition of the Technician Education Yearbook, the current status in the development of community/junior colleges and technical institutes is presented on the basis of information gathered from replies to more than 3,000 questionnaires. Nine articles relating to new issues, problems, and proposals are compiled in the first…
Exploring the Science--Society Interface with a Bridging Research Course
ERIC Educational Resources Information Center
Boltax, Ariana L.; Kosinski-Collins, Melissa S.; Pontrello, Jason K.
2016-01-01
This article describes the development of a model for an optional, research-based course that bridges two existing, traditionally separate, introductory science courses. This research course provided freedom for students to design and implement new experiments on the basis of technical foundations built from enrollment in separate introductory…
Identifying Choreographic Knowledge: Choreographic "Techne" and "Phronesis"
ERIC Educational Resources Information Center
Kim, Na-ye
2016-01-01
This paper presents the core findings of a doctoral study conducted between 2009 and 2013 on teaching and learning the creative process in dance composition. Choreographic knowledge that enhances the technical and creative aspects of choreography is examined and interpreted on the basis of Aristotle's "techne" and "phronesis."…
Interdisciplinary Learning as a Basis for Formation of Intercultural Communicative Competence
ERIC Educational Resources Information Center
Redchenko, Nadezhda N.
2016-01-01
An interdisciplinary approach provides many benefits that warrant the need for its use at technical universities teaching foreign language as an academic discipline. This article reviews recent Russian researches focused on interdisciplinary integration, summarizes advantages and proves overall high efficacy of the interdisciplinary approach to…
DOT National Transportation Integrated Search
2016-07-13
This report describes the concept of operation for the use of mobile devices in a connected vehicle environment. Specifically, it identifies the needs, conceptual system, and potential scenarios that serve as the basis for demonstrating both safety a...
Formalin-fixed paraffin-embedded (FFPE) tissue samples represent a potentially invaluable resource for genomic research into the molecular basis of disease. However, use of FFPE samples in gene expression studies has been limited by technical challenges resulting from degradation...
Nonbibliographic Applications of Z39.50.
ERIC Educational Resources Information Center
Kunze, John A.
1992-01-01
Describes the use of the Z39.50 information retrieval protocol as the basis for Infocal, a read-only, client/server-based campus information system. Technical considerations in adapting the protocol to nonbibliographic data, including semantic modules, dynamic attribute sets, and dynamic record syntax, are described in detail. (Contains 11…
Online Resources for Teaching Shakespeare. ERIC Digest.
ERIC Educational Resources Information Center
Stoicheva, Mila
To assist educators in effectively teaching the works of such a critical author as William Shakespeare, this Digest identifies and describes some of the most significant and useful online resources. The digest notes that the sites were chosen on the basis of their technical excellence, purpose, content, authorship, and general usefulness for…
Semiannual Technical Summary, 1 October 1985-31 March 1986
1986-05-01
see Braille , 1973; Ruud, 1986) to estimate velocities and crustal thick- ness. The outcome of such an experiment, on the basis of ŗ-component...Phys. Earth Planet. Inter., 15, 13-27. Braille , L.W. (1973): Inversion of crustal seismic refraction and reflection data, J. Geophy. Res., 78, 7738-7744
The NRC published two reports over a twenty year span. They concluded that there is no documented scientific evidence that sewage sludge regulations have failed to protect public health, but identified areas of research.
A fundamental investigation is proposed to provide a technical basis for the development of a novel, liquid-fluidized bed classification (LFBC) technology for the continuous separation of complex waste plastic mixtures for in-process recycling and waste minimization. Although ...
Advancing Stage 2 Research on Measures for Monitoring Kindergarten Reading Progress
ERIC Educational Resources Information Center
Clemens, Nathan H.; Soohoo, Michelle M.; Wiley, Colby P.; Hsiao, Yu-Yu; Estrella, Ivonne; Allee-Smith, Paula J.; Yoon, Myeongsun
2018-01-01
Although several measures exist for frequently monitoring early reading progress, little research has specifically investigated their technical properties when administered on a frequent basis with kindergarten students. In this study, kindergarten students (N = 137) of whom the majority was receiving supplemental intervention for reading skills…
75 FR 82241 - Technical Correction: Completion of Entry and Entry Summary-Declaration of Value
Federal Register 2010, 2011, 2012, 2013, 2014
2010-12-30
... Entry Summary-- Declaration of Value AGENCY: Customs and Border Protection, Department of Homeland... manner by which the declared transaction value on imported merchandise was determined. This requirement... whether the transaction value of imported merchandise is determined on the basis of the price paid by the...
Precision Machining Technology. Curriculum Guide.
ERIC Educational Resources Information Center
Idaho State Dept. of Education, Boise. Div. of Vocational Education.
This curriculum guide was developed from a Technical Committee Report prepared with the assistance of industry personnel and containing a Task List which is the basis of the guide. It presents competency-based program standards for courses in precision machining technology and is part of the Idaho Vocational Curriculum Guide Project, a cooperative…
DOT National Transportation Integrated Search
1996-04-01
The technical fairness of the written air traffic control specialist (ATCS) aptitude test battery was investigated within the framework of the Uniform Guidelines on Employee Selection Procedures (29 CFR 1607). First, the adverse impact of using a com...
Data warehousing as a basis for web-based documentation of data mining and analysis.
Karlsson, J; Eklund, P; Hallgren, C G; Sjödin, J G
1999-01-01
In this paper we present a case study for data warehousing intended to support data mining and analysis. We also describe a prototype for data retrieval. Further we discuss some technical issues related to a particular choice of a patient record environment.
Schmidt, Anja; Schmid, Marc W; Grossniklaus, Ueli
2012-04-01
Reproduction is a crucial step in the life cycle of plants. The male and female germline lineages develop in the reproductive organs of the flower, which in higher plants are the anthers and ovules, respectively. Development of the germline lineage initiates from a dedicated sporophytic cell that undergoes meiosis to form spores that subsequently give rise to the gametophytes through mitotic cell divisions. The mature male and female gametophytes harbour the male (sperm cells) and female gametes (egg and central cell), respectively. Those unite during double fertilization to initiate embryo and endosperm development in sexually reproducing higher plants. While cytological changes involved in development of the germline lineages have been well characterized in a number of species, investigation of the transcriptional basis underlying their development and the specification of the gametes proved challenging. This is largely due to the inaccessibility of the cells constituting the germline lineages, which are enclosed by sporophytic tissues. Only recently, these technical limitations could be overcome by combining new methods to isolate the relevant cells with powerful transcriptional profiling methods, such as microarrays or high-throughput sequencing of RNA. This review focuses on these technical advances and the new insights gained from them concerning the transcriptional basis and molecular mechanisms underlying germline development. © 2012 The Authors. The Plant Journal © 2012 Blackwell Publishing Ltd.
Koreňová, Janka; Rešková, Zuzana; Véghová, Adriana; Kuchta, Tomáš
2015-01-01
Contamination by Staphylococcus aureus of the production environment of three small or medium-sized food-processing factories in Slovakia was investigated on the basis of sub-species molecular identification by multiple locus variable number of tandem repeats analysis (MLVA). On the basis of MLVA profiling, bacterial isolates were assigned to 31 groups. Data from repeated samplings over a period of 3 years facilitated to draw spatial and temporal maps of the contamination routes for individual factories, as well as identification of potential persistent strains. Information obtained by MLVA typing allowed to identify sources and routes of contamination and, subsequently, will allow to optimize the technical and sanitation measures to ensure hygiene.
Lessons Learned and Technical Standards: A Logical Marriage
NASA Technical Reports Server (NTRS)
Gill, Paul; Vaughan, William W.; Garcia, Danny; Gill, Maninderpal S. (Technical Monitor)
2001-01-01
A comprehensive database of lessons learned that corresponds with relevant technical standards would be a boon to technical personnel and standards developers. The authors discuss the emergence of one such database within NASA, and show how and why the incorporation of lessons learned into technical standards databases can be an indispensable tool for government and industry. Passed down from parent to child, teacher to pupil, and from senior to junior employees, lessons learned have been the basis for our accomplishments throughout the ages. Government and industry, too, have long recognized the need to systematically document And utilize the knowledge gained from past experiences in order to avoid the repetition of failures and mishaps. The use of lessons learned is a principle component of any organizational culture committed to continuous improvement. They have formed the foundation for discoveries, inventions, improvements, textbooks, and technical standards. Technical standards are a very logical way to communicate these lessons. Using the time-honored tradition of passing on lessons learned while utilizing the newest in information technology, the National Aeronautics and Space Administration (NASA) has launched an intensive effort to link lessons learned with specific technical standards through various Internet databases. This article will discuss the importance of lessons learned to engineers, the difficulty in finding relevant lessons learned while engaged in an engineering project, and the new NASA project that can help alleviate this difficulty. The article will conclude with recommendations for more expanded cross-sectoral uses of lessons learned with reference to technical standards.
Kuhlmann, Andrea; Reuter, Verena; Schramek, Renate; Dimitrov, Todor; Görnig, Matthias; Matip, Eva-Maria; Matthies, Olaf; Naroska, Edwin
2018-01-01
The "OurPuppet" project comprises a sensor-based, interactive puppet that will be developed to communicate with people in need of care during a short period of absence of the informal caregiver. Specially qualified puppet guides will support the use of the new technical development. They instruct people with dementia and caregivers on how to use the puppet and supervise the (informal) care relationship through discussions on a regular basis. The article shows the specific components of users' needs for which the concrete technical development should find answers. It also focuses on the opportunities and challenges for the technical and social developmental process accompanied by these demands. The analysis of the users' needs is based on a participatory approach. Semi-structured focus group interviews were conducted with informal caregivers, nurses and volunteers in order to identify typical situations in home care settings. The interviews were paraphrased and summarized in order to deduce inductive categories (qualitative data analysis), which describe everyday situations that the technical system should address. Such analyses provide information about the needs of potential users and indicate how to design such technical systems. Furthermore, opportunities and challenges of the development process as well as important contextual information were identified.
A technical platform for environments for ageing--lessons learned from three field studies.
Eichelberg, Marco; Büsching, Felix; Steen, Enno-Edzard; Helmer, Axel; Thiel, Andreas; Hein, Andreas; Wolf, Lars
2014-01-01
The Lower Saxony Research Network "Design of Environments for Ageing" (GAL) studied possible applications of assistive technology for enabling older adults to live longer and independent in their own home. As part of this work, a technical platform was developed as a common technical basis for all assistive systems in the project. This article presents an overview of the architecture and core functionality of the technical platform, which in the first generation was developed for use in a laboratory setting, and in a second generation was extended for use in the project's field studies, i.e. prototype installations in end-users homes. The field studies' primary objective was the evaluation of the assistive technologies, that were developed within the overall project. However, these studies also confirmed that the fundamental concept of the technical platform is valid, and the prototypes continuously worked 24 h a day for several months. However, there were some problems related to lack of infrastructure in the older adults' homes and human factors such as inadvertent placement of objects across sensors' field of view, acceptance problems due to aesthetical reasons or simply communication problems, which show that making complex technologies work for users with little technical experience is well possible, but requires a careful consideration of the complete service chain and related "soft factors".
A Socio-Technical Analysis of Patient Accessible Electronic Health Records.
Hägglund, Maria; Scandurra, Isabella
2017-01-01
In Sweden, and internationally, there is a movement towards increased transparency in healthcare including giving patients online access to their electronic health records (EHR). The purpose of this paper is to analyze the Swedish patient accessible EHR (PAEHR) service using a socio-technical framework, to increase the understanding of factors that influence the design, implementation, adoption and use of the service. Using the Sitting and Singh socio-technical framework as a basis for analyzing the Swedish PAEHR system and its context indicated that there are many stakeholders engaged in these types of services, with different driving forces and incentives that may influence the adoption and usefulness of PAEHR services. The analysis was useful in highlighting important areas that need to be further explored in evaluations of PAEHR services, and can act as a guide when planning evaluations of any PAEHR service.
Zahraei, Seyed Mohsen; Marandi, Alireza; Sadrizadeh, Bijan; Gouya, Mehdi Mohammad; Rezaei, Parviz; Vazirian, Parviz; Yaghini, Fatheme
2010-04-19
The National Immunization Technical Advisory Group (NITAG) was established in Iran in 1982 and has made many important technical recommendations (e.g., regarding polio eradication, introduction of new vaccines, organizing special studies) that have contributed to a dramatic decline in vaccine preventable disease burden. The NITAG consists of experts from the Ministry of Health and Medical Education (MOHME), vaccine manufacturers, and medical universities with national Expanded Program of Immunization (EPI) staff serving as the secretariat. It is not completely independent from MOHME or EPI. It meets on a quarterly basis, and publishes national guidelines and immunization schedules that are updated regularly. Although primarily an advisory body, representation from MOHME members, including the EPI manager, ensures almost universal implementation of NITAG recommendations. Copyright © 2010 Elsevier Ltd. All rights reserved.
How to manage without being a manager
DOE Office of Scientific and Technical Information (OSTI.GOV)
Sweeney, M.A.
1997-06-01
In the author`s current position at Sandia National Laboratories within the Pulsed Power Sciences Center, much of the author`s time is spent in composing short (one page) technical reports and long (> 20 page) technical contracts and program plans for transmission to the Department of Energy and to upper management and also in reviewing long technical documents for accuracy. A major requirement of these efforts is to complete them on a timely basis, often within a few hours or a few days. In this talk, the author reveals some communication {open_quotes}secrets{close_quotes} that have been learned. The idea behind these twelvemore » {open_quotes}secrets{close_quotes} is to get the answers you, as a nonmanager, need quickly from a manager without creating stress either on your part or the manager`s part.« less
SME Acceptability Determination For DWPF Process Control (U)
DOE Office of Scientific and Technical Information (OSTI.GOV)
Edwards, T.
2017-06-12
The statistical system described in this document is called the Product Composition Control System (PCCS). K. G. Brown and R. L. Postles were the originators and developers of this system as well as the authors of the first three versions of this technical basis document for PCCS. PCCS has guided acceptability decisions for the processing at the Defense Waste Processing Facility (DWPF) at the Savannah River Site (SRS) since the start of radioactive operations in 1996. The author of this revision to the document gratefully acknowledges the firm technical foundation that Brown and Postles established to support the ongoing successfulmore » operation at the DWPF. Their integration of the glass propertycomposition models, developed under the direction of C. M. Jantzen, into a coherent and robust control system, has served the DWPF well over the last 20+ years, even as new challenges, such as the introduction into the DWPF flowsheet of auxiliary streams from the Actinide Removal Process (ARP) and other processes, were met. The purpose of this revision is to provide a technical basis for modifications to PCCS required to support the introduction of waste streams from the Salt Waste Processing Facility (SWPF) into the DWPF flowsheet. An expanded glass composition region is anticipated by the introduction of waste streams from SWPF, and property-composition studies of that glass region have been conducted. Jantzen, once again, directed the development of glass property-composition models applicable for this expanded composition region. The author gratefully acknowledges the technical contributions of C.M. Jantzen leading to the development of these glass property-composition models. The integration of these models into the PCCS constraints necessary to administer future acceptability decisions for the processing at DWPF is provided by this sixth revision of this document.« less
PANDA asymmetric-configuration passive decay heat removal test results
DOE Office of Scientific and Technical Information (OSTI.GOV)
Fischer, O.; Dreier, J.; Aubert, C.
1997-12-01
PANDA is a large-scale, low-pressure test facility for investigating passive decay heat removal systems for the next generation of LWRs. In the first series of experiments, PANDA was used to examine the long-term LOCA response of the Passive Containment Cooling System (PCCS) for the General Electric (GE) Simplified Boiling Water Reactor (SBWR). The test objectives include concept demonstration and extension of the database available for qualification of containment codes. Also included is the study of the effects of nonuniform distributions of steam and noncondensable gases in the Dry-well (DW) and in the Suppression Chamber (SC). 3 refs., 9 figs.
Kraft, Marc
2008-09-03
Testing and restoring technical-functional safety is an essential part of medical device reprocessing. Technical functional tests have to be carried out on the medical device in the course of the validation of reprocessing procedures. These ensure (in addition to the hygiene tests) that the reprocessing procedure is suitable for the medical device. Functional tests are, however, also a part of reprocessing procedures. As a stage in the reprocessing, they ensure for the individual medical device that no damage or other changes limit the performance. When determining which technical-functional tests are to be carried out, the current technological standard has to be taken into account in the form of product-specific and process-oriented norms. Product-specific norms primarily define safety-relevant requirements. The risk management method described in DIN EN ISO 14971 is the basis for recognising hazards; the likelihood of such hazards arising can be minimised through additional technical-functional tests, which may not yet have been standardised. Risk management is part of a quality management system, which must be bindingly certified for manufacturers and processors of critical medical devices with particularly high processing demands by a body accredited by the competent authority.
Kraft, Marc
2008-01-01
Testing and restoring technical-functional safety is an essential part of medical device reprocessing. Technical functional tests have to be carried out on the medical device in the course of the validation of reprocessing procedures. These ensure (in addition to the hygiene tests) that the reprocessing procedure is suitable for the medical device. Functional tests are, however, also a part of reprocessing procedures. As a stage in the reprocessing, they ensure for the individual medical device that no damage or other changes limit the performance. When determining which technical-functional tests are to be carried out, the current technological standard has to be taken into account in the form of product-specific and process-oriented norms. Product-specific norms primarily define safety-relevant requirements. The risk management method described in DIN EN ISO 14971 is the basis for recognising hazards; the likelihood of such hazards arising can be minimised through additional technical-functional tests, which may not yet have been standardised. Risk management is part of a quality management system, which must be bindingly certified for manufacturers and processors of critical medical devices with particularly high processing demands by a body accredited by the competent authority. PMID:20204095
[Facing the challenges of ubiquitous computing in the health care sector].
Georgieff, Peter; Friedewald, Michael
2010-01-01
The steady progress of microelectronics, communications and information technology will enable the realisation of the vision for "ubiquitous computing" where the Internet extends into the real world embracing everyday objects. The necessary technical basis is already in place. Due to their diminishing size, constantly falling price and declining energy consumption, processors, communications modules and sensors are being increasingly integrated into everyday objects today. This development is opening up huge opportunities for both the economy and individuals. In the present paper we discuss possible applications, but also technical, social and economic barriers to a wide-spread use of ubiquitous computing in the health care sector. .
Muzic, Raymond F.; DiFilippo, Frank P.
2015-01-01
PET/MR is a hybrid imaging technology with the potential to combine the molecular and functional information of PET with the soft-tissue contrast of MR. Herein we review the technical features and challenges of putting these different technologies together. We emphasize the conceptual to make the material accessible to a wide audience. We begin by reviewing PET/CT, a more mature multi-modality imaging technology, to provide a basis for comparison to the history of PET/MR development. We discuss the motivation and challenges of PET/MR and different approaches that have been used to meet the challenges. We conclude with a speculation about the future of this exciting imaging method. PMID:25497909
Improving the quality of learning discipline “Technical thermodynamics and heat exchange” at ONMU
NASA Astrophysics Data System (ADS)
Vasserman, A. A.; Malchevsky, V. P.
2017-11-01
Discipline «Technical thermodynamics and heat exchange» creates a theoretical basis for students of ship-engineering faculty of Odessa National Maritime University to learn special subjects such as: Internal Combustion Engines, Steam and Gas Turbines, Steam Boilers, Refrigerating Plants. This course forms future specialist and provides the deep understanding of essence of thermodynamic processes which run in machines and apparatus of ship. Also different kinds of heat exchange in solid, liquid and gaseous bodies which take place almost in all technological processes are considered. The quality of training ship engineers depends on the knowledge of mentioned discipline.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Pless, S.; Torcellini, P.; Long, N.
2007-09-01
This Technical Support Document describes the process and methodology for the development of the Advanced Energy Design Guide for K-12 School Buildings (K-12 AEDG), a design guidance document intended to provide recommendations for achieving 30% energy savings in K-12 Schools over levels contained in ANSI/ASHRAE/IESNA Standard 90.1-1999, Energy Standard for Buildings Except Low-Rise Residential Buildings. The 30% energy savings target is the first step toward achieving net-zero energy schools; schools that, on an annual basis, draw from outside sources less or equal energy than they generate on site from renewable energy sources.
Overcoming the Law of the Hidden in Cyberinfrastructures.
Bucksch, Alexander; Das, Abhiram; Schneider, Hannah; Merchant, Nirav; Weitz, Joshua S
2017-02-01
Cyberinfrastructure projects (CIPs) are complex, integrated systems that require interaction and organization amongst user, developer, hardware, technical infrastructure, and funding resources. Nevertheless, CIP usability, functionality, and growth do not scale with the sum of these resources. Instead, growth and efficient usage of CIPs require access to 'hidden' resources. These include technical resources within CIPs as well as social and functional interactions among stakeholders. We identify approaches to overcome resource limitations following the conceptual basis of Liebig's Law of the Minimum. In so doing, we recommend practical steps towards efficient and scaleable resource use, taking the iPlant/CyVerse CIP as an example. Copyright © 2016 Elsevier Ltd. All rights reserved.
Impact of oscillations of shafts on machining accuracy using non-stationary machines
NASA Astrophysics Data System (ADS)
Fedorenko, M. A.; Bondarenko, J. A.; Pogonin, A. A.
2018-03-01
The solution of the problem of restoring parts and units of equipment of the large mass and size is possible on the basis of the development of the research base, including the development of models and theoretical relations, revealing complex reasons for causes of damage and equipment failure. This allows one to develop new effective technologies of maintenance and repair, implementation of which ensures the efficiency and durability of the machines. The development of new forms of technical maintenance and repair of equipment, based on a systematic evaluation of its technical condition with the help of modern diagnostic tools can significantly reduce the duration of the downtime.
Crew Transportation Technical Management Processes
NASA Technical Reports Server (NTRS)
Mckinnie, John M. (Compiler); Lueders, Kathryn L. (Compiler)
2013-01-01
Under the guidance of processes provided by Crew Transportation Plan (CCT-PLN-1100), this document, with its sister documents, International Space Station (ISS) Crew Transportation and Services Requirements Document (CCT-REQ-1130), Crew Transportation Technical Standards and Design Evaluation Criteria (CCT-STD-1140), Crew Transportation Operations Standards (CCT STD-1150), and ISS to Commercial Orbital Transportation Services Interface Requirements Document (SSP 50808), provides the basis for a National Aeronautics and Space Administration (NASA) certification for services to the ISS for the Commercial Provider. When NASA Crew Transportation System (CTS) certification is achieved for ISS transportation, the Commercial Provider will be eligible to provide services to and from the ISS during the services phase.
Solar stills for agricultural purposes
NASA Technical Reports Server (NTRS)
Selcuk, M. K.; Tran, V. V.
1975-01-01
Basic concepts of using desalinated water for agricultural purposes are outlined. A mathematical model describing heat and mass transfer in a system combining a solar still with a greenhouse, its solution, and test results of a small-scale unit built at the Middle East Technical University, Ankara, Turkey, are discussed. The unit was employed to demonstrate the technical feasibility of the system. Further development and modifications are necessary for larger-scale operations. The basis of an optimization study which is underway at the Brace Research Institute of McGill University in Montreal, Canada, aimed at finding the best combination of design and operation parameters is also presented.
Technical information report: Plasma melter operation, reliability, and maintenance analysis
DOE Office of Scientific and Technical Information (OSTI.GOV)
Hendrickson, D.W.
1995-03-14
This document provides a technical report of operability, reliability, and maintenance of a plasma melter for low-level waste vitrification, in support of the Hanford Tank Waste Remediation System (TWRS) Low-Level Waste (LLW) Vitrification Program. A process description is provided that minimizes maintenance and downtime and includes material and energy balances, equipment sizes and arrangement, startup/operation/maintence/shutdown cycle descriptions, and basis for scale-up to a 200 metric ton/day production facility. Operational requirements are provided including utilities, feeds, labor, and maintenance. Equipment reliability estimates and maintenance requirements are provided which includes a list of failure modes, responses, and consequences.
Understanding Veterinarians as Educators: An Exploratory Study
ERIC Educational Resources Information Center
Dolby, Nadine; Litster, Annette
2015-01-01
A new emphasis on "non-technical competence" in veterinary medical education has drawn attention to the reality that veterinarians are not solely technicians, but instead take on a wide variety of roles in their daily practice. This article discusses one largely overlooked role that veterinarians engage in on a regular basis--that of…
ERIC Educational Resources Information Center
Ohio State Univ., Columbus. National Center for Research in Vocational Education.
This military-developed text consists of nine lessons dealing with investigative photography. Covered in the individual lessons are the following topics: light (light as the basis of photography, the behavior of light, the composition of white light, light transmission, reflection and absorption, illumination, and pinholes and light); camera…
DOE Office of Scientific and Technical Information (OSTI.GOV)
Mickens, Ronald E.
2008-12-22
This research examined the following items/issues: the NSFD methodology, technical achievements and applications, dissemination efforts and research related professional activities. Also a list of unresolved issues were identified that could form the basis for future research in the area of constructing and analyzing NSFD schemes for both ODE's and PDE's.
Estimation of Apprentice and Trainee Statistics. Technical Paper
ERIC Educational Resources Information Center
Harvey, Brian
2010-01-01
Apprentice and trainee data are reported by the State and Territory Training Authorities to NCVER (National Centre for Vocational Education Research) on a quarterly basis, starting at the September quarter of 1994. The set of data submitted that quarter is referred to as Collection 1. The sets of data submitted in subsequent quarters are referred…
Energy conversion alternatives study
NASA Technical Reports Server (NTRS)
Shure, L. T.
1979-01-01
Comparison of coal based energy systems is given. Study identifies and compares various advanced energy conversion systems using coal or coal derived fuels for baselaoad electric power generation. Energy Conversion Alternatives Study (ECAS) reports provede government, industry, and general public with technically consistent basis for comparison of system's options of interest for fossilfired electric-utility application.
Natural history museums and cyberspace
Wemmer, C.; Erixon-Stanford, M.; Gardner, A.L.
1996-01-01
Natural history museums are entering the electronic age as they increasingly use computers to build accessible and shareable databases that support research and education on a world-wide basis. Museums are exploring the Internet and other shared uses of electronic media to enhance their traditional roles in education, training, identifications, technical assistance, and collections management.
Effects of cosmic rays on single event upsets
NASA Technical Reports Server (NTRS)
Lowe, Calvin W.; Oladipupo, Adebisi O.; Venable, Demetrius D.
1988-01-01
The efforts at establishing a research program in space radiation effects are discussed. The research program has served as the basis for training several graduate students in an area of research that is of importance to NASA. In addition, technical support was provided for the Single Event Facility Group at Brookhaven National Laboratory.
Applied Behavior Analysis and the Imprisoned Adult Felon Project 1: The Cellblock Token Economy.
ERIC Educational Resources Information Center
Milan, Michael A.; And Others
This report provides a technical-level analysis, discussion, and summary of five experiments in applied behavior analysis. Experiment 1 examined the token economy as a basis for motivating inmate behavior; Experiment 2 examined the relationship between magnitude of token reinforcement and level of inmate performance; Experiment 3 introduced a…
40 CFR 63.95 - Additional approval criteria for accidental release prevention programs.
Code of Federal Regulations, 2011 CFR
2011-07-01
... basis. (3) Procedures for reviewing risk management plans and providing technical assistance to... chapter; and (ii) A requirement that any source subject to the State's part 68 program submit a Risk Management Plan (RMP) that reports at least the same information in the same format as required under part 68...
Research of Curriculum Content, Data Processing Program. Final Report.
ERIC Educational Resources Information Center
Stoehr, Keith; And Others
A study was conducted to assess the relationship between data processing competencies taught in Wisconsin Vocational, Technical, and Adult Education District Data Processing programs and on-the-job demands, as a basis for curriculum review and revision. A sample of program graduates, their employers, and instructors were asked to rate 75…
Schools under Pressure: The External Environment and Recent Organizational Reforms.
ERIC Educational Resources Information Center
Salganik, Laura H.
Reductions in resources and increases in external demands place schools under pressure that can be relieved to some extent by organizational changes. When resources are sufficient, these changes may take the form of technical rationality--that is, decisions concerning policy and practices are made on the basis of neutral, measurable data rather…
A DIRECTORY OF COMMUNITY WAGE SURVEYS, 1948-JUNE 1965.
ERIC Educational Resources Information Center
Bureau of Labor Statistics (DOL), Washington, DC.
IN 1948 THE BUREAU OF LABOR STATISTICS INSTITUTED A PROGRAM OF SURVEYS IN WHICH OCCUPATIONS COMMON TO A VARIETY OF MANUFACTURING AND NONMANUFACTURING INDUSTRIES WERE STUDIED ON A COMMUNITYWIDE BASIS. THE EARLIER STUDIES WERE LIMITED TO OFFICE WORKERS BUT WERE EXPANDED BY 1951 TO INCLUDE PROFESSIONAL AND TECHNICAL, MAINTENANCE AND POWER PLANT, AND…
Recommended Practices for the Safe Design and Operation of Flywheels
DOE Office of Scientific and Technical Information (OSTI.GOV)
Bender, Donald Arthur
2015-12-01
Flywheel energy storage systems are in use globally in increasing numbers . No codes pertaining specifically to flywheel energy storage exist. A number of industrial incidents have occurred. This protocol recommends a technical basis for safe flywheel de sign and operation for consideration by flywheel developers, users of flywheel systems and standards setting organizations.
Articulation Activity for Accounting Programs: Project Results and Descriptive Report. Final Report.
ERIC Educational Resources Information Center
Adams, Esther
In response to the need for a basic articulated accounting curriculum providing for a smooth transition from the secondary to the postsecondary level, Blackhawk Technical Institute (BTI) conducted a project to develop a master list of accounting competencies as the basis of a core accounting curriculum; to determine competency standards; to…
ERIC Educational Resources Information Center
Slessarev, Yuri Vassilyevich; Moisseyev, Vassily Borisovich; Vostroknutov, Evgeniy Vladimirovich
2015-01-01
This article describes pedagogical conditions of ensuring students readiness for scientific researches on the basis of scientific literature and experience of Penza State Technological University students. Introduction of suggested conditions favors the process of training of highly skilled expert who is ready for generation of new ideas in fields…
Federal Register 2010, 2011, 2012, 2013, 2014
2013-09-27
... science by improving coordination across a broad range of forensic science disciplines. The new initiative... intended to provide structured forums for the exchange of ideas among operational, technical, research, and... needs of forensic science research and measurement standards, and verifying the scientific basis exists...
NASA Technical Reports Server (NTRS)
1987-01-01
A compact, lightweight electrolytic water filter generates silver ions in concentrations of 50 to 100 parts per billion in the water flow system. Silver ions serve as effective bactericide/deodorizers. Ray Ward requested and received from NASA a technical information package on the Shuttle filter, and used it as basis for his own initial development, a home use filter.
Nuclear Energy Research Initiative (NERI) Program. 2nd Quarterly Technical Progress Report
DOE Office of Scientific and Technical Information (OSTI.GOV)
NONE
2000-02-22
The research activities have been underway. We have located a large body of source material from aerospace, shipbuilding and manufacturing businesses that is serving the basis for identifying improvement methodologies. Our work on developing the three models proposed to capture the extent of the improvement possibilities has been ongoing.
75 FR 20869 - Advisory Committee on the Medical Uses of Isotopes: Meeting Notice
Federal Register 2010, 2011, 2012, 2013, 2014
2010-04-21
...; (7) an update on the status of the technical basis to support Part 35 rulemaking addressing the... events for fiscal year 2010; and (10) an issue regarding signatures for post-implant written directives...: 1. Persons who wish to provide a written statement should submit an electronic copy to Ms. Cockerham...
Federal Register 2010, 2011, 2012, 2013, 2014
2012-06-26
... controverted. In addition, the requestor/petitioner shall provide a brief explanation of the bases for the... Technical Specification (TS) 3.3.6, ``Containment Purge Isolation Instrumentation,'' such that a Note would... 3.6.3, ``Containment Isolation Valves,'' and TS 3.9.4, ``Containment Penetrations.'' Basis for...
ERIC Educational Resources Information Center
Folkman, Kristian; Berge, Zane L.
2002-01-01
Presents results from a study conducted at Telenor, a Norwegian telecom operator, regarding the distribution of home personal computers to employees to encourage professional development outside working hours on an individual basis. Findings from a survey suggest that home computers can contribute positively to increasing employee's knowledge…
Code of Federal Regulations, 2010 CFR
2010-01-01
... means a small business concern that is at least 51 percent owned by one or more women, or in the case of... scientific technical merit of the grant applications in those fields, who review on an individual basis one...) Substantially the same research is proposed for funding in more than one grant application submitted to the same...
The Value of Words: Narrative as Evidence in Policy Making
ERIC Educational Resources Information Center
Epstein, Dmitry; Farina, Cynthia; Heidt, Josiah
2014-01-01
Policy makers today rely primarily on technical data as their basis for decision making. Yet, there is a potentially underestimated value in substantive reflections of the members of the public who will be affected by a particular regulation. Viewing professional policy makers and professional commenters as a community of practice, we describe…
Corpus Linguistics for Korean Language Learning and Teaching. NFLRC Technical Report No. 26
ERIC Educational Resources Information Center
Bley-Vroman, Robert, Ed.; Ko, Hyunsook, Ed.
2006-01-01
Dramatic advances in personal computer technology have given language teachers access to vast quantities of machine-readable text, which can be analyzed with a view toward improving the basis of language instruction. Corpus linguistics provides analytic techniques and practical tools for studying language in use. This volume includes both an…
GRASP - A Prototype Interactive Graphic Sawing Program - (MU-IE Technical Report)
Luis G. Occeña; Daniel L. Schmoldt
1995-01-01
A versatile microcomputer-based interactive graphics program has been developed as a tool for modeling various hardwood processes, from bucking and topping to log sawing, lumber edging, secondary processing, even veneering. The microcomputer platform makes the tool affordable and accessible.A solid modeling basis provides the tool with a sound geometrical and...
Job-Derived Selection: Follow Up Report. Technical Report No. 4.
ERIC Educational Resources Information Center
McCormick, Ernest J.; And Others
A study dealt with the use of the Position Analysis Questionnaire (PAQ) within a job component validity framework as the basis for estimating aptitude requirements of jobs represented by scores on commercially available tests as contrasted with scores on General Aptitude Test Battery (GATB) tests. Procedures generally consisted of the use of job…
40 CFR 1068.120 - What requirements must I follow to rebuild engines?
Code of Federal Regulations, 2012 CFR
2012-07-01
... systems for fuel metering or electronic control so that it significantly increases the service life of the... must have a reasonable technical basis for knowing that the rebuilt engine's emission control system... believe that the engine with those parts will control emissions of all pollutants at least to the same...
40 CFR 1068.120 - What requirements must I follow to rebuild engines?
Code of Federal Regulations, 2014 CFR
2014-07-01
... systems for fuel metering or electronic control so that it significantly increases the service life of the... must have a reasonable technical basis for knowing that the rebuilt engine's emission control system... believe that the engine with those parts will control emissions of all pollutants at least to the same...
40 CFR 1068.120 - What requirements must I follow to rebuild engines?
Code of Federal Regulations, 2013 CFR
2013-07-01
... systems for fuel metering or electronic control so that it significantly increases the service life of the... must have a reasonable technical basis for knowing that the rebuilt engine's emission control system... believe that the engine with those parts will control emissions of all pollutants at least to the same...
15 CFR 301.5 - Processing of applications by the Department of Commerce.
Code of Federal Regulations, 2013 CFR
2013-01-01
... is as a general rule either produced for stock, produced on order, or custom-made and; (B) An... must be made on a timely basis to ensure their consideration by the Director and the technical... teaching nonscientific courses (e.g., music, home economics, journalism, drama); in presenting a variety of...
15 CFR 301.5 - Processing of applications by the Department of Commerce.
Code of Federal Regulations, 2014 CFR
2014-01-01
... is as a general rule either produced for stock, produced on order, or custom-made and; (B) An... must be made on a timely basis to ensure their consideration by the Director and the technical... teaching nonscientific courses (e.g., music, home economics, journalism, drama); in presenting a variety of...
15 CFR 301.5 - Processing of applications by the Department of Commerce.
Code of Federal Regulations, 2012 CFR
2012-01-01
... is as a general rule either produced for stock, produced on order, or custom-made and; (B) An... must be made on a timely basis to ensure their consideration by the Director and the technical... teaching nonscientific courses (e.g., music, home economics, journalism, drama); in presenting a variety of...
15 CFR 301.5 - Processing of applications by the Department of Commerce.
Code of Federal Regulations, 2011 CFR
2011-01-01
... is as a general rule either produced for stock, produced on order, or custom-made and; (B) An... must be made on a timely basis to ensure their consideration by the Director and the technical... teaching nonscientific courses (e.g., music, home economics, journalism, drama); in presenting a variety of...
Estimation of Apprentice and Trainee Statistics. Technical Paper
ERIC Educational Resources Information Center
Harvey, Brian
2009-01-01
Apprentice and trainee data are reported by the State and Territory Training Authorities to the National Centre for Vocational Education Research (NCVER) on a quarterly basis, starting at the September quarter of 1994. The set of data submitted that quarter is referred to as Collection 1. The sets of data submitted in subsequent quarters are…
Scientific Basis for Paint Stripping Mechanism for Methylene Chloride Based Paint Removers
2011-09-01
2011 Young Han, Ph.D NAVAIR Materials Engineering Division Report Documentation Page Form ApprovedOMB No. 0704-0188 Public reporting burden...11. SPONSOR/MONITOR’S REPORT NUMBER(S) 12. DISTRIBUTION/AVAILABILITY STATEMENT Approved for public release, distribution unlimited 13...8-1 8.1 List of Scientific/Technical Publications
A Curriculum Guide for Achieving Equity in Education and the Workplace.
ERIC Educational Resources Information Center
Vocational Curriculum Resource Center of Maine, Fairfield.
This curriculum guide provides instructional materials that offer suggestions and strategies to change mindsets and remove barriers in order to pave the way for a gender-equitable, technically trained work force. A DACUM (Developing a Curriculum) chart forms the basis for the task performance guides provided for five audiences: students,…
Arizona Research Coordinating Unit, Second Annual Report.
ERIC Educational Resources Information Center
Lee, Arthur M.
The Arizona Research Coordinating Unit has concentrated its efforts during the past 18 months on a study of engineering technology which was published in March of 1968. A second major project is a study of vocational-technical education in the state to be used as a basis for future planning. Other activities included assistance with several…
40 CFR 63.95 - Additional approval criteria for accidental release prevention programs.
Code of Federal Regulations, 2010 CFR
2010-07-01
... basis. (3) Procedures for reviewing risk management plans and providing technical assistance to... chapter; and (ii) A requirement that any source subject to the State's part 68 program submit a Risk Management Plan (RMP) that reports at least the same information in the same format as required under part 68...
Summary on the depressurization from supercritical pressure conditions
DOE Office of Scientific and Technical Information (OSTI.GOV)
Anderson, M.; Chen, Y.; Ammirable, L.
When a fluid discharges from a high pressure and temperature system, a 'choking' or critical condition occurs, and the flow rate becomes independent of the downstream pressure. During a postulated loss of coolant accident (LOCA) of a water reactor the break flow will be subject to this condition. An accurate estimation of the critical flow rate is important for the evaluation of the reactor safety, because this flow rate controls the loss of coolant inventory and energy from the system, and thus has a significant effect on the accident consequences[1]. In the design of safety systems for a super criticalmore » water reactor (SCWR), postulated LOCA transients are particularly important due to the lower coolant inventory compared to a typical PWR for the same power output. This lower coolant inventory would result in a faster transient response of the SCWR, and hence accurate prediction of the critical discharge is mandatory. Under potential two-phase conditions critical flow is dominated by the vapor content or quality of the vapor, which is closely related with the onset of vaporization and the interfacial interaction between phases [2]. This presents a major challenge for the estimation of the flow rate due to the lack of the knowledge of those processes, especially under the conditions of interest for the SCWR. According to the limited data of supercritical fluids, the critical flows at conditions above the pseudo-critical point seem to be fairly stable and consistent with the subcritical homogeneous equilibrium model (HEM) model predictions, while having a lower flow rate than those in the two-phase region. Thus the major difficulty in the prediction of the depressurization flow rates remains in the region where two phases co-exist at the top of the vapor dome. In this region, the flow rate is strongly affected by the nozzle geometry and tends to be unstable. Various models for this region have been developed with different assumptions, e.g. the HEM and Moody model [3], and the Henry-Fauske non-equilibrium model [4], and are currently used in subcritical pressure reactor safety design[5]. It appears that some of these models could be reasonably extended to above the thermodynamic pseudo-critical point. The more stable and lower discharge flow rates observed in conditions above the pseudo-critical point suggests that even though SCWR's have a smaller coolant inventory, the safety implications of a LOCA and the subsequent depressurization may not be as severe as expected, this however needs to be confirmed by a rigorous evaluation of the particular event and further evaluation of the critical flow rate. This paper will summarize activities on critical flow models, experimental data and numerical modeling during blowdown from supercritical pressure conditions under the International Atomic Energy Agency (IAEA) Coordinated Research Project (CRP) on 'Heat Transfer Behaviour and Thermo-hydraulics Code testing for SCWRs'. (authors)« less
NASA Astrophysics Data System (ADS)
Serio, L.; Bremer, J.; Claudet, S.; Delikaris, D.; Ferlin, G.; Ferrand, F.; Pezzetti, M.; Pirotte, O.
2017-12-01
CERN operates and maintains the world largest cryogenic infrastructure ranging from ageing but well maintained installations feeding detectors, test facilities and general services, to the state-of-the-art cryogenic system serving the flagship LHC machine complex. A study was conducted and a methodology proposed to outsource to industry the operation and maintenance of the whole cryogenic infrastructure. The cryogenic installations coupled to non LHC-detectors, test facilities and general services infrastructure have been fully outsourced for operation and maintenance on the basis of performance obligations. The contractor is responsible for the operational performance of the installations based on a yearly operation schedule provided by CERN. The maintenance of the cryogenic system serving the LHC machine and its detectors has been outsourced on the basis of tasks oriented obligations, monitored by key performance indicators. CERN operation team, with the support of the contractor operation team, remains responsible for the operational strategy and performances. We report the analysis, strategy, definition of the requirements and technical specifications as well as the achieved technical and economic performances after one year of operation.
Authorization basis requirements comparison report
DOE Office of Scientific and Technical Information (OSTI.GOV)
Brantley, W.M.
The TWRS Authorization Basis (AB) consists of a set of documents identified by TWRS management with the concurrence of DOE-RL. Upon implementation of the TWRS Basis for Interim Operation (BIO) and Technical Safety Requirements (TSRs), the AB list will be revised to include the BIO and TSRs. Some documents that currently form part of the AB will be removed from the list. This SD identifies each - requirement from those documents, and recommends a disposition for each to ensure that necessary requirements are retained when the AB is revised to incorporate the BIO and TSRs. This SD also identifies documentsmore » that will remain part of the AB after the BIO and TSRs are implemented. This document does not change the AB, but provides guidance for the preparation of change documentation.« less
Inland Waterway Environmental Safety
NASA Astrophysics Data System (ADS)
Reshnyak, Valery; Sokolov, Sergey; Nyrkov, Anatoliy; Budnik, Vlad
2018-05-01
The article presents the results of development of the main components of the environmental safety when operating vessels on inland waterways, which include strategy selection ensuring the environmental safety of vessels, the selection and justification of a complex of environmental technical means, activities to ensure operation of vessels taking into account the environmental technical means. Measures to ensure environmental safety are developed on the basis of the principles aimed at ensuring environmental safety of vessels. They include the development of strategies for the use of environmental protection equipment, which are determined by the conditions for wastewater treatment of purified sewage and oily bilge water as well as technical characteristics of the vessels, the introduction of the process of the out-of-the-vessel processing of ship pollution as a technology for their movement. This must take into account the operating conditions of vessels on different sections of waterways. An algorithm of actions aimed at ensuring ecological safety of operated vessels is proposed.
Decision Support System for Aquifer Recharge (AR) and ...
Aquifer recharge (AR) is a technical method being utilized to enhance groundwater resources through man-made replenishment means, such as infiltration basins and injections wells. Aquifer storage and recovery (ASR) furthers the AR techniques by withdrawal of stored groundwater at a later time for beneficial use. It is a viable adaptation technique for water availability problems. Variants of the water storage practices include recharge through urban green infrastructure and the subsurface injection of reclaimed water, i.e., wastewater, which has been treated to remove solids and impurities. In addition to a general overview of ASR variations, this report focuses on the principles and technical basis for an ASR decision support system (DSS), with the necessary technical references provided. The DSS consists of three levels of tools and methods for ASR system planning and assessment, design, and evaluation. Level 1 of the system is focused on ASR feasibility, for which four types of data and technical information are organized around: 1) ASR regulations and permitting needs, 2) Water demand projections, 3) Climate change and water availability, and 4) ASR sites and technical information. These technical resources are integrated to quantify water availability gaps and the feasibility of using ASR to meet the volume and timing of the water resource shortages. A systemic analysis of water resources was conducted for sustainable water supplies in Las Vegas, Nevada f
Riem, N; Boet, S; Bould, M D; Tavares, W; Naik, V N
2012-11-01
Both technical skills (TS) and non-technical skills (NTS) are key to ensuring patient safety in acute care practice and effective crisis management. These skills are often taught and assessed separately. We hypothesized that TS and NTS are not independent of each other, and we aimed to evaluate the relationship between TS and NTS during a simulated intraoperative crisis scenario. This study was a retrospective analysis of performances from a previously published work. After institutional ethics approval, 50 anaesthesiology residents managed a simulated crisis scenario of an intraoperative cardiac arrest secondary to a malignant arrhythmia. We used a modified Delphi approach to design a TS checklist, specific for the management of a malignant arrhythmia requiring defibrillation. All scenarios were recorded. Each performance was analysed by four independent experts. For each performance, two experts independently rated the technical performance using the TS checklist, and two other experts independently rated NTS using the Anaesthetists' Non-Technical Skills score. TS and NTS were significantly correlated to each other (r=0.45, P<0.05). During a simulated 5 min resuscitation requiring crisis resource management, our results indicate that TS and NTS are related to one another. This research provides the basis for future studies evaluating the nature of this relationship, the influence of NTS training on the performance of TS, and to determine whether NTS are generic and transferrable between crises that require different TS.
McAllister, Margaret; Searl, Kerry Reid; Davis, Susan
2013-12-01
Simulation learning in nursing has long made use of mannequins, standardized actors and role play to allow students opportunity to practice technical body-care skills and interventions. Even though numerous strategies have been developed to mimic or amplify clinical situations, a common problem that is difficult to overcome in even the most well-executed simulation experiences, is that students may realize the setting is artificial and fail to fully engage, remember or apply the learning. Another problem is that students may learn technical competence but remain uncertain about communicating with the person. Since communication capabilities are imperative in human service work, simulation learning that only achieves technical competence in students is not fully effective for the needs of nursing education. Furthermore, while simulation learning is a burgeoning space for innovative practices, it has been criticized for the absence of a basis in theory. It is within this context that an innovative simulation learning experience named "Mask-Ed (KRS simulation)", has been deconstructed and the active learning components examined. Establishing a theoretical basis for creative teaching and learning practices provides an understanding of how, why and when simulation learning has been effective and it may help to distinguish aspects of the experience that could be improved. Three conceptual theoretical fields help explain the power of this simulation technique: Vygotskian sociocultural learning theory, applied theatre and embodiment. Copyright © 2013 Elsevier Ltd. All rights reserved.
Gas-Grain Simulation Facility (GGSF). Volume 1: Stage 1 facility definition studies
NASA Technical Reports Server (NTRS)
Gat, Nahum
1993-01-01
The Gas-Grain Simulation Facility (GGSF) is a facility-type payload to be included in the Space Station Freedom (SSF). The GGSF is a multidisciplinary facility that will accommodate several classes of experiments, including exobiology, planetary science, atmospheric science, and astrophysics. The physical mechanisms envisioned to be investigated include crystal growth, aggregation, nucleation, coagulation, condensation, collisions, fractal growth, cycles of freezing and evaporation, scavenging, longevity of bacteria, and more. TRW performed a Phase A study that included analyses of the science and technical (S&T) requirements, the development of facility functional requirements, and a conceptual design of the facility. The work that was performed under Stage 1 of the Phase A study and the results to date are summarized. In this stage, facility definition studies were conducted in sufficient detail to establish the technical feasibility of the candidate strawman experiments. The studies identified technical difficulties, identified required facility subsystems, surveyed existing technology studies and established preliminary facility weight, volume, power consumption, data systems, interface definition, and crew time requirements. The results of this study served as the basis for Stage 2 of the Phase A study in which a conceptual design and a reference design were performed. The results also served as a basis for a related study for a Gas-Grain Simulation Experiment Module (GGSEM), which is an apparatus intended to perform a subset of the GGSF experiments on board a low-Earth-orbiting platform.
NASA Astrophysics Data System (ADS)
Zhukovskiy, Y.; Koteleva, N.
2017-10-01
Analysis of technical and technological conditions for the emergence of emergency situations during the operation of electromechanical equipment of enterprises of the mineral and raw materials complex shows that when developing the basis for ensuring safe operation, it is necessary to take into account not only the technical condition, but also the non-stationary operation of the operating conditions of equipment, and the nonstationarity of operational operating parameters of technological processes. Violations of the operation of individual parts of the machine, not detected in time, can lead to severe accidents at work, as well as to unplanned downtime and loss of profits. That is why, the issues of obtaining and processing Big data obtained during the life cycle of electromechanical equipment, for assessing the current state of the electromechanical equipment used, timely diagnostics of emergency and pre-emergency modes of its operation, estimating the residual resource, as well as prediction the technical state on the basis of machine learning are very important. This article is dedicated to developing the special method of data storing, collection and aggregation for definition of life-cycle resources of electromechanical equipment. This method can be used in working with big data and can allow extracting the knowledge from different data types: the plants’ historical data and the factory historical data. The data of the plants contains the information about electromechanical equipment operation and the data of the factory contains the information about a production of electromechanical equipment.
Models and numerical methods for the simulation of loss-of-coolant accidents in nuclear reactors
NASA Astrophysics Data System (ADS)
Seguin, Nicolas
2014-05-01
In view of the simulation of the water flows in pressurized water reactors (PWR), many models are available in the literature and their complexity deeply depends on the required accuracy, see for instance [1]. The loss-of-coolant accident (LOCA) may appear when a pipe is broken through. The coolant is composed by light water in its liquid form at very high temperature and pressure (around 300 °C and 155 bar), it then flashes and becomes instantaneously vapor in case of LOCA. A front of liquid/vapor phase transition appears in the pipes and may propagate towards the critical parts of the PWR. It is crucial to propose accurate models for the whole phenomenon, but also sufficiently robust to obtain relevant numerical results. Due to the application we have in mind, a complete description of the two-phase flow (with all the bubbles, droplets, interfaces…) is out of reach and irrelevant. We investigate averaged models, based on the use of void fractions for each phase, which represent the probability of presence of a phase at a given position and at a given time. The most accurate averaged model, based on the so-called Baer-Nunziato model, describes separately each phase by its own density, velocity and pressure. The two phases are coupled by non-conservative terms due to gradients of the void fractions and by source terms for mechanical relaxation, drag force and mass transfer. With appropriate closure laws, it has been proved [2] that this model complies with all the expected physical requirements: positivity of densities and temperatures, maximum principle for the void fraction, conservation of the mixture quantities, decrease of the global entropy… On the basis of this model, it is possible to derive simpler models, which can be used where the flow is still, see [3]. From the numerical point of view, we develop new Finite Volume schemes in [4], which also satisfy the requirements mentioned above. Since they are based on a partial linearization of the physical model, this numerical scheme is also efficient in terms of CPU time. Eventually, simpler models can locally replace the more complex model in order to simplify the overall computation, using some appropriate local error indicators developed in [5], without reducing the accuracy. References 1. Ishii, M., Hibiki, T., Thermo-fluid dynamics of two-phase flow, Springer, New-York, 2006. 2. Gallouët, T. and Hérard, J.-M., Seguin, N., Numerical modeling of two-phase flows using the two-fluid two-pressure approach, Math. Models Methods Appl. Sci., Vol. 14, 2004. 3. Seguin, N., Étude d'équations aux dérivées partielles hyperboliques en mécanique des fluides, Habilitation à diriger des recherches, UPMC-Paris 6, 2011. 4. Coquel, F., Hérard, J-M., Saleh, K., Seguin, N., A Robust Entropy-Satisfying Finite Volume Scheme for the Isentropic Baer-Nunziato Model, ESAIM: Mathematical Modelling and Numerical Analysis, Vol. 48, 2013. 5. Mathis, H., Cancès, C., Godlewski, E., Seguin, N., Dynamic model adaptation for multiscale simulation of hyperbolic systems with relaxation, preprint, 2013.
Margin of Safety Definition and Examples Used in Safety Basis Documents and the USQ Process
DOE Office of Scientific and Technical Information (OSTI.GOV)
Beaulieu, R. A.
The Nuclear Safety Management final rule, 10 CFR 830, provides an undefined term, margin of safety (MOS). Safe harbors listed in 10 CFR 830, Table 2, such as DOE-STD-3009 use but do not define the term. This lack of definition has created the need for the definition. This paper provides a definition of MOS and documents examples of MOS as applied in a U.S. Department of Energy (DOE) approved safety basis for an existing nuclear facility. If we understand what MOS looks like regarding Technical Safety Requirements (TSR) parameters, then it helps us compare against other parameters that do notmore » involve a MOS. This paper also documents parameters that are not MOS. These criteria could be used to determine if an MOS exists in safety basis documents. This paper helps DOE, including the National Nuclear Security Administration (NNSA) and its contractors responsible for the safety basis improve safety basis documents and the unreviewed safety question (USQ) process with respect to MOS.« less
ERIC Educational Resources Information Center
Maxwell, Eugene L.
Presented is a portion of a research project which developed materials for teaching remote sensing of natural resources on an interdisciplinary basis at the graduate level. This volume contains notes developed for a course in active remote sensing. It is concerned with those methods or systems which generate the electromagnetic energy…
Flammable gas technical basis document
DOE Office of Scientific and Technical Information (OSTI.GOV)
CARRO, C.A.
2003-03-22
This document qualitatively evaluates the frequency and consequences of DST and SST representative flammable gas accidents and associated represented hazardous conditions without controls. Based on the evaluation, it was determined that safety-significant SSCs and/or TSRs were required to prevent or mitigate flammable gas accidents. Controls were selected and the accidents re-evaluated taking credit for the controls.
Federal Register 2010, 2011, 2012, 2013, 2014
2010-10-05
... EPA cannot read your comment due to technical difficulties and cannot contact you for clarification... comments, remember to: Identify the rulemaking by docket number and other identifying information (subject... pollutants in forming the scientific basis for the NAAQS, EPA has decided to jointly assess the science...
Federal Register 2010, 2011, 2012, 2013, 2014
2010-11-17
... you submit. If EPA cannot read your comment due to technical difficulties and cannot contact you for..., remember to: Identify the rulemaking by docket number and other identifying information (subject heading... the scientific basis for the NAAQS, EPA has decided to jointly assess the science, risks, and policies...
Federal Register 2010, 2011, 2012, 2013, 2014
2013-11-14
... Corrections for Kirtland's Warbler AGENCY: Fish and Wildlife Service, Interior. ACTION: Direct final rule... (Kirtland's warbler) under the Endangered Species Act of 1973, as amended (Act). We are revising the List of... documents a taxonomic change (scientific name) to Kirtland's warbler (50 CFR 17.11(h)). The basis for the...
On the Basis of the Basic Variety.
ERIC Educational Resources Information Center
Schwartz, Bonnie D.
1997-01-01
Considers the interplay between source and target language in relation to two points made by Klein and Perdue: (1) the argument that the analysis of the target language should not be used as the model for analyzing interlanguage data; and (2) the theoretical claim that under the technical assumptions of minimalism, the Basic Variety is a "perfect"…
Estimation of Apprentice and Trainee Statistics. Technical Paper
ERIC Educational Resources Information Center
Harvey, Brian
2010-01-01
Apprentice and trainee data are reported by the state and territory training authorities to the National Centre for Vocational Education and Training (NCVER) on a quarterly basis, starting at the September quarter of 1994. The set of data submitted that quarter is referred to as collection 1. The sets of data submitted in subsequent quarters are…
SWRL Music Program: Ethnic Song Selection and Distribution. Technical Note.
ERIC Educational Resources Information Center
Williams, David Brian
Current elementary music education approaches to the distribution and selection of ethnic folk song in music programs are surveyed and each approach is reviewed on the basis of its utility for the Southwest Regional Laboratory Music Program. The first approach, a traditional point of view, is based on the premise that music education has a…
ERIC Educational Resources Information Center
Touraine, Alain; And Others
Methods for encouraging positive worker attitude and behavior toward change were examined to provide a basis for re-evaluation of current policies and programs relating to introduction of technological changes. The literature reviewed is presented in sections of: (1) "The Worker and the Occupational System," by Claude Durand, (2)…
Interpretation and Manipulation in Human Plans. Technical Report No. 317.
ERIC Educational Resources Information Center
Newman, Denis; Bruce, Bertram
Analysis of students' interpretations of a complex episode of social interaction was used to illustrate three features of human plans that distinguish them from robot plans and that form a basis for a theory of the development of social action. The features illustrated are that (1) human plans are social, (2) human plans operate on…
ERIC Educational Resources Information Center
Kress, Gary
The increased number of marginal aptitude trainees inducted into the Army has created the need for adequately and efficiently training these men. This report presents the finding of research that compared high and low aptitude men--classified on the basis of scores from the Armed Forces Qualification Test (AFQT)--on two form discrimination tasks…
Health, Education and Poverty Reduction. OECD Development Centre Policy Brief No. 19
ERIC Educational Resources Information Center
Morrisson, Christian
2002-01-01
It is generally agreed that spending on education and health is key to poverty reduction, but simply allocating more resources to these sectors does not ensure that poverty actually declines. On the basis of four in-depth case studies (on Indonesia, Madagascar, Peru and Tanzania) and three Technical Papers on malnutrition and primary education in…
Massport Logan International Airport NPDES Permit | NPDES ...
2017-08-28
Massport was issued a permit for discharging storm water to Boston Harbor on March 1, 1978. The permit expired five years later. However, EPA administratively continued the permit as allowed by regulations. EPA issued a draft permit and fact sheet (which provides EPA's technical basis for establishing effluent limits and monitoring) for public comment on July 25, 2006.
GUIDON-WATCH: A Graphic Interface for Viewing a Knowledge-Based System. Technical Report #14.
ERIC Educational Resources Information Center
Richer, Mark H.; Clancey, William J.
This paper describes GUIDON-WATCH, a graphic interface that uses multiple windows and a mouse to allow a student to browse a knowledge base and view reasoning processes during diagnostic problem solving. The GUIDON project at Stanford University is investigating how knowledge-based systems can provide the basis for teaching programs, and this…
Adjustment Notes for Apprentice and Trainee Estimates. Technical Paper
ERIC Educational Resources Information Center
National Centre for Vocational Education Research (NCVER), 2010
2010-01-01
Apprentice and trainee data are reported by the State and Territory Training Authorities to the National Centre for Vocational Education Research (NCVER) on a quarterly basis, starting at the September quarter of 1994. The set of data submitted that quarter is referred to as Collection 1. The sets of data submitted in subsequent quarters are…
Adjustment Notes for Apprentice and Trainee Estimates. Technical Paper
ERIC Educational Resources Information Center
National Centre for Vocational Education Research (NCVER), 2011
2011-01-01
Apprentice and trainee data are reported by the State and Territory Training Authorities to NCVER (National Centre for Vocational Education Research) on a quarterly basis, starting at the September quarter of 1994. The set of data submitted that quarter is referred to as Collection 1. The sets of data submitted in subsequent quarters are referred…
Adjustment Notes for Apprentice and Trainee Estimates. Technical Paper
ERIC Educational Resources Information Center
National Centre for Vocational Education Research (NCVER), 2010
2010-01-01
Apprentice and trainee data are reported by the State and Territory Training Authorities to National Centre for Vocational Education Research (NCVER) on a quarterly basis, starting at the September quarter of 1994. The set of data submitted that quarter is referred to as Collection 1. The sets of data submitted in subsequent quarters are referred…
44 CFR 67.7 - Collection of appeal data.
Code of Federal Regulations, 2011 CFR
2011-10-01
... he may publicly designate and shall set forth scientific or technical data that tend to negate or... is sufficient to justify an appeal on behalf of such persons by the community in its own name. (d) The decision issued by the CEO on the basis of his review, on whether an appeal by the community in...
Two keys for appraising forest fire fuels.
George R. Fahnestock
1970-01-01
This is an attempt to characterize forest fire fuels in a new way. The immediate purpose is to provide means for recognizing and tentatively evaluating, in the field, the fire spread potential and the crowning potential of fuels on the basis of readily observed characteristics without need for prior technical knowledge of vegetation or experience with fire. The medium...
Climatizing the Home Minicourse, Career Oriented Pre-Technical Physics. Preliminary Edition.
ERIC Educational Resources Information Center
Bullock, Bob; And Others
This minicourse was prepared for use with secondary physics students in the Dallas Independent School District and is one option in a physics program which provides for the selection of topics on the basis of student career needs and interests. This minicourse was aimed at providing students with a knowledge of the physics factors that determine…
The Concept of Energy in Psychological Theory. Cognitive Science Program, Technical Report No. 86-2.
ERIC Educational Resources Information Center
Posner, Michael I.; Rothbart, Mary Klevjord
This paper describes a basic framework for integration of computational and energetic concepts in psychological theory. The framework is adapted from a general effort to understand the neural systems underlying cognition. The element of the cognitive system that provides the best basis for attempting to relate energetic and computational ideas is…
Learning Center and Study Carrels: A Comparative Study. Technical Report #18.
ERIC Educational Resources Information Center
Chun, Sherlyn; And Others
This Kamehameha Early Education Program (KEEP) report presents a comparative study of the work rates of kindergarten and first grade children in two classroom environments: a learning-center and a study-carrel environment. The subjects, seven matched pairs of kindergarten and first grade students, were chosen on the basis of the results of a…
"I Wanted To See If We Could Make It Work": Perspectives on Inclusive Childcare.
ERIC Educational Resources Information Center
Devore, Simone; Hanley-Maxwell, Cheryl
2000-01-01
A study explored how six childcare providers who have included children with special needs are able to provide care on a daily basis. Factors included the providers' commitment, finding the balance between resources and needs, problem-solving with parents, access to emotional support and technical assistance, and access to other supports.…
Automobile Ignition System Minicourse, Career Oriented Pre-Technical Physics. Preliminary Edition.
ERIC Educational Resources Information Center
Bullock, Bob; And Others
This minicourse was prepared for use with secondary physics students in the Dallas Independent School District and is one option in a physics program which provides for the selection of topics on the basis of student career needs and interests. This minicourse was aimed at providing the student with a basic understanding of the construction and…
Tables Of Gaussian-Type Orbital Basis Functions
NASA Technical Reports Server (NTRS)
Partridge, Harry
1992-01-01
NASA technical memorandum contains tables of estimated Hartree-Fock wave functions for atoms lithium through neon and potassium through krypton. Sets contain optimized Gaussian-type orbital exponents and coefficients, and near Hartree-Fock quality. Orbital exponents optimized by minimizing restricted Hartree-Fock energy via scaled Newton-Raphson scheme in which Hessian evaluated numerically by use of analytically determined gradients.
Steps to an Ecology of Fear: Advanced Curriculum for Fearlessness. Technical Paper No. 38
ERIC Educational Resources Information Center
Fisher, R. Michael
2012-01-01
The author outlines a unique integral transdisciplinary theory (model, map) for studying four meta-motivations universal to all living systems. Within this theory are four primary principles to make the whole integral basis for understanding motivation and all that it determines in perception, thinking, feelings, actions. The four meta-motivations…
Code of Federal Regulations, 2011 CFR
2011-10-01
...), except as otherwise provided in this section. (c) In the verification interview, you must explain the laboratory findings to the employee and address technical questions or issues the employee may raise. (d) You... at the time of the verification interview. As the MRO, you have discretion to extend the time...
Code of Federal Regulations, 2010 CFR
2010-10-01
...), except as otherwise provided in this section. (c) In the verification interview, you must explain the laboratory findings to the employee and address technical questions or issues the employee may raise. (d) You... at the time of the verification interview. As the MRO, you have discretion to extend the time...
NASA/HAA Advanced Rotorcraft Technology and Tilt Rotor Workshops. Volume 1: Executive Summary
NASA Technical Reports Server (NTRS)
1980-01-01
This presentation provides an overview of the NASA Rotorcraft Program as an introduction to the technical sessions of the Advanced Rotorcraft Technology Workshop. It deals with the basis for NASA's increasing emphasis on rotorcraft technology, NASA's research capabilities, recent program planning efforts, highlights of its 10-year plan and future directions and opportunities.
Passive containment cooling system with drywell pressure regulation for boiling water reactor
Hill, Paul R.
1994-01-01
A boiling water reactor having a regulating valve for placing the wetwell in flow communication with an intake duct of the passive containment cooling system. This subsystem can be adjusted to maintain the drywell pressure at (or slightly below or above) wetwell pressure after the initial reactor blowdown transient is over. This addition to the PCCS design has the benefit of eliminating or minimizing steam leakage from the drywell to the wetwell in the longer-term post-LOCA time period and also minimizes the temperature difference between drywell and wetwell. This in turn reduces the rate of long-term pressure buildup of the containment, thereby extending the time to reach the design pressure limit.
Launch Vehicle Design Process: Characterization, Technical Integration, and Lessons Learned
NASA Technical Reports Server (NTRS)
Blair, J. C.; Ryan, R. S.; Schutzenhofer, L. A.; Humphries, W. R.
2001-01-01
Engineering design is a challenging activity for any product. Since launch vehicles are highly complex and interconnected and have extreme energy densities, their design represents a challenge of the highest order. The purpose of this document is to delineate and clarify the design process associated with the launch vehicle for space flight transportation. The goal is to define and characterize a baseline for the space transportation design process. This baseline can be used as a basis for improving effectiveness and efficiency of the design process. The baseline characterization is achieved via compartmentalization and technical integration of subsystems, design functions, and discipline functions. First, a global design process overview is provided in order to show responsibility, interactions, and connectivity of overall aspects of the design process. Then design essentials are delineated in order to emphasize necessary features of the design process that are sometimes overlooked. Finally the design process characterization is presented. This is accomplished by considering project technical framework, technical integration, process description (technical integration model, subsystem tree, design/discipline planes, decision gates, and tasks), and the design sequence. Also included in the document are a snapshot relating to process improvements, illustrations of the process, a survey of recommendations from experienced practitioners in aerospace, lessons learned, references, and a bibliography.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Gerard, R.; Malekian, C.; Meessen, O.
The Leak Before Break (LBB) concept allows to eliminate from the design basis the double-ended guillotine break of the primary loop piping, provided it can be demonstrated by a fracture mechanics analysis that a through-wall flaw, of a size giving rise to a leakage still well detectable by the plant leak detection systems, remains stable even under accident conditions (including the Safe Shutdown Earthquake (SSE)). This concept was successfully applied to the primary loop piping of several Belgian Pressurized Water Reactor (PWR) units, operated by the Utility Electrabel. One of the main benefits is to permit justification of supports inmore » the primary loop and justification of the integrity of the reactor pressure vessel and internals in case of a Loss Of Coolant Accident (LOCA) in stretch-out conditions. For two of the Belgian PWR units, the LBB approach also made it possible to reduce the number of large hydraulic snubbers installed on the primary coolant pumps. Last but not least, the LBB concept also facilitates the steam generator replacement operations, by eliminating the need for some pipe whip restraints located close to the steam generator. In addition to the U.S. regulatory requirements, the Belgian safety authorities impose additional requirements which are described in details in a separate paper. An novel aspect of the studies performed in Belgium is the way in which residual loads in the primary loop are taken into account. Such loads may result from displacements imposed to close the primary loop in a steam generator replacement operation, especially when it is performed using the {open_quote}two cuts{close_quotes} technique. The influence of such residual loads on the LBB margins is discussed in details and typical results are presented.« less
Rapid depressurization event analysis in BWR/6 using RELAP5 and contain
DOE Office of Scientific and Technical Information (OSTI.GOV)
Mueftueoglu, A.K.; Feltus, M.A.
1995-09-01
Noncondensable gases may become dissolved in Boiling Water Reactor (BWR) water level instrumentation during normal operations. Any dissolved noncondensable gases inside these water columns may come out of solution during rapid depressurization events, and displace water from the reference leg piping resulting in a false high level. These water level errors may cause a delay or failure in actuation, or premature shutdown of the Emergency Core Cooling System. (ECCS). If a rapid depressurization causes an erroneously high water level, preventing automatic ECCS actuation, it becomes important to determine if there would be other adequate indications for operator response and othermore » signals for automatic actuation such as high drywell pressure. It is also important to determine the effect of the level signal on ECCS operation after it is being actuated. The objective of this study is to determine the detailed coupled containment/NSSS response during this rapid depressurization events in BWR/6. The selected scenarios involve: (a) inadvertent opening of all ADS valves, (b) design basis (DB) large break loss of coolant accident (LOCA), and (c) main steam line break (MSLB). The transient behaviors are evaluated in terms of: (a) vessel pressure and collapsed water level response, (b) specific transient boundary conditions, (e.g., scram, MSIV closure timing, feedwater flow, and break blowdown rates), (c) ECCS initiation timing, (d) impact of operator actions, (e) whether indications besides low-low water level were available. The results of the analysis had shown that there would be signals to actuate ECCS other than low reactor level, such as high drywell pressure, low vessel pressure, high suppression pool temperature, and that the plant operators would have significant indications to actuate ECCS.« less
[Arthrography of the temporomandibular joint. Indications, technic and interpretation].
Jend, H H; Triebel, H J; Jend-Rossmann, I
1986-09-01
Articular dysfunction of the TMJ with anterior displacement of the disc ("internal derangement") is an entity which has been separated from other types of the "myofascial pain syndromes" and which can be treated conservatively or by surgery. Arthrography of the TMJ has contributed greatly to an understanding of normal and abnormal function and, in many cases, it can provide a diagnosis. On the basis of our experience with 80 investigations we discuss technical problems and the clinical indications. The indications for arthrography are in the pre-operative diagnosis, when clinical findings are uncertain, in order to demonstrate perforation, in order to confirm a suspected diagnosis and to assist in prosthetic treatment.
Development of noise emission measurement specifications for color printing multifunctional devices
NASA Astrophysics Data System (ADS)
Kimizuka, Ikuo
2005-09-01
Color printing (including copying) is becoming more popular application in home, as well as in offices. Existing de jule and/or industrial standards (such as ISO 7779, ECMA-74, ANSI S12.10 series, etc.), however, state only monochrome patterns, which are mainly intended for acoustic noise testing of mechanical impact type printers. This paper discusses the key issues and corresponding resolutions for development of color printing patterns for acoustic noise measurements. The results of these technical works will be published by JBMS-74 (new industry standard of JBMIA within 2005), and hopefully be the technical basis of updating other standards mentioned above. This paper also shows the development processes and key features of proposed patterns.
ISS Crew Transportation and Services Requirements Document
NASA Technical Reports Server (NTRS)
Lueders, Kathryn L. (Compiler)
2015-01-01
Under the guidance of processes provided by Crew Transportation Plan (CCT-PLN-1100), this document with its sister documents, Crew Transportation Technical Management Processes (CCT-PLN-1120), Crew Transportation Technical Standards and Design Evaluation Criteria (CCT-STD-1140), and Crew Transportation Operations Standards (CCT-STD-1150), and International Space Station (ISS) to Commercial Orbital Transportation Services Interface Requirements Document (SSP 50808), provides the basis for a National Aeronautics and Space Administration (NASA) certification for services to the ISS for the Commercial Provider. When NASA Crew Transportation System (CTS) certification is achieved for ISS transportation, the Commercial Provider will be eligible to provide services to and from the ISS during the services phase of the NASA Commercial Crew Program (CCP).
NASA Astrophysics Data System (ADS)
Abe, Eisuke; Sasaki, Kento
2018-04-01
This tutorial article provides a concise and pedagogical overview on negatively charged nitrogen-vacancy (NV) centers in diamond. The research on the NV centers has attracted enormous attention for its application to quantum sensing, encompassing the areas of not only physics and applied physics but also chemistry, biology, and life sciences. Nonetheless, its key technical aspects can be understood from the viewpoint of magnetic resonance. We focus on three facets of this ever-expanding research field, to which our viewpoint is especially relevant: microwave engineering, materials science, and magnetometry. In explaining these aspects, we provide a technical basis and up-to-date technologies for research on the NV centers.
Simulation of pipeline in the area of the underwater crossing
NASA Astrophysics Data System (ADS)
Burkov, P.; Chernyavskiy, D.; Burkova, S.; Konan, E. C.
2014-08-01
The article studies stress-strain behavior of the main oil-pipeline section Alexandrovskoye-Anzhero-Sudzhensk using software system Ansys. This method of examination and assessment of technical conditions of objects of pipeline transport studies the objects and the processes that affect the technical condition of these facilities, including the research on the basis of computer simulation. Such approach allows to develop the theory, methods of calculations and designing of objects of pipeline transport, units and parts of machines, regardless of their industry and destination with a view to improve the existing constructions and create new structures, machines of high performance, durability and reliability, maintainability, low material capacity and cost, which have competitiveness on the world market.
The Pioneer Projects - Economical exploration of the solar system
NASA Technical Reports Server (NTRS)
Spahr, J. R.; Hall, C. F.
1975-01-01
The interplanetary Pioneer missions are reviewed in terms of management implications and cost control. The responsibilities, organizational structure, and management practices of the Pioneer Projects are presented. The lines of authority and areas of responsibility of the principal organizational elements supporting the Pioneer missions are identified, and the methods employed for maintaining effective and timely interactions among these elements are indicated. The technical and administrative functions of various organizational elements of the project are described. The management and control of activities prior to and during the hardware procurement phase are described to indicate the basis for obtaining visibility of the technical progress, utilization of resources, and cost performance of the contractors and other institutions supporting the Pioneer projects.
Task 2 - Limits for High-Frequency Conducted Susceptibility Testing - CS114 (NRC-HQ-60-14-D-0015)
DOE Office of Scientific and Technical Information (OSTI.GOV)
Wood, Richard Thomas; Ewing, Paul D.; Moses, Rebecca J.
2015-09-01
A principal focus of Task 2 under this project was for ORNL to evaluate the basis for susceptibility testing against high-frequency conducted interference and to establish recommendations to resolve concerns about the severity of test limits for the conducted susceptibility (CS) test, CS114, from MIL-STD-461. The primary concern about the test limit has been characterized by the EPRI EMI Working Group in the following terms: Demonstrating compliance with the CS114 test limits recommended in TR-102323 has proven to be problematic, even for components that have been tested to commercial standards and demonstrated proper operation in industrial applications [6]. Specifically, EPRImore » notes that the CS114 limits approved in regulatory documents are significantly higher than those invoked by the US military and similar commercial standards in the frequency range below 200 kHz. For this task, ORNL evaluated the original approach to establishing the test limit, EPRI technical findings from a review of the limit, and the regulatory basis through which the currently approved limits were accepted. Based on this analysis, strategies have been developed regarding changes to the CS114 limit that can resolve the technical concerns raised by the industry. Guided by the principles that reasonable assurance of safety must not be compromised but excessive conservatism should be reduced, recommendations on a suitable basis for a revised limit have been developed and can be incorporated into the planned Revision 2 of RG 1.180.« less
Radon in Soil Gas Above Bedrock Fracture Sets at the Shepley’s Hill Superfund Site
DOE Office of Scientific and Technical Information (OSTI.GOV)
J.R. Giles; T.L. McLing; M.V. Carpenter
2012-12-01
The Idaho National Laboratory (INL) recently provided technical support for ongoing environmental remediation activities at the Shepley’s Hill remediation site near Devens, MA (Figure 1). The technical support was requested as follow-on work to an initial screening level radiation survey conducted in 2008. The purpose of the original study was to assess the efficacy of the INL-developed Backpack Sodium Iodide System (BaSIS) for detecting elevated areas of natural radioactivity due to the decay of radon-222 gases emanating from the underlying fracture sets. Although the results from the initial study were mixed, the BaSIS radiation surveys did confirm that exposed bedrockmore » outcrops have higher natural radioactivity than the surficial soils, thus a high potential for detecting elevated levels of radon and/or radon daughter products. (INL 2009) The short count times associated with the BaSIS measurements limited the ability of the system to respond to elevated levels of radioactivity from a subsurface source, in this instance radon gas emanating from fracture sets. Thus, it was postulated that a different methodology be employed to directly detect the radon in the soil gases. The CR-39 particle track detectors were investigated through an extensive literature and technology search. The relatively long deployment or “detection” time of several days, as well as the sensitivity of the measurement and robustness of the detectors made the CR-39 technology promising for deployment at the Shepley’s Hill site.« less
Redman, A D; Butler, J D; Letinski, D J; Di Toro, D M; Leon Paumen, M; Parkerton, T F
2018-05-01
Solid-phase microextraction fibers coated with polydimethylsiloxane (PDMS) provide a convenient passive sampling format to characterize bioavailability of petroleum substances. Hydrocarbons absorb onto PDMS in proportion to both freely dissolved concentrations and partitioning properties of the individual constituents, which parallels the mechanistic basis used to predict aquatic toxicity in the PETROTOX model. When deployed in a non-depletive manner, combining SPME with thermal desorption and quantification using gas chromatography-flame ionization creates a biomimetic extraction (BE) procedure that has the potential to simplify aquatic hazard assessments of petroleum substances since the total moles of all hydrocarbons sorbed to the fiber can be related to toxic thresholds in target lipid of aquatic organisms. The objective of this work is to describe the technical basis for applying BE measurements to predict toxicity of petroleum substances. Critical BE-based PDMS concentrations corresponding to adverse effects were empirically derived from toxicity tests on different petroleum substances with multiple test species. The resulting species sensitivity distribution (SSD) of PDMS effect concentrations was then compared and found consistent with the previously reported target lipid-based SSD. Further, BE data collected on samples of aqueous media dosed with a wide range of petroleum substances were highly correlated to predicted toxic units derived using the PETROTOX model. These findings provide justification for applying BE in environmental hazard and risk evaluations of petroleum substances and related mixtures. Copyright © 2018 Elsevier Ltd. All rights reserved.
Moorthy, Krishna; Munz, Yaron; Adams, Sally; Pandey, Vikas; Darzi, Ara
2005-01-01
Background: High-risk organizations such as aviation rely on simulations for the training and assessment of technical and team performance. The aim of this study was to develop a simulated environment for surgical trainees using similar principles. Methods: A total of 27 surgical trainees carried out a simulated procedure in a Simulated Operating Theatre with a standardized OR team. Observation of OR events was carried out by an unobtrusive data collection system: clinical data recorder. Assessment of performance consisted of blinded rating of technical skills, a checklist of technical events, an assessment of communication, and a global rating of team skills by a human factors expert and trained surgical research fellows. The participants underwent a debriefing session, and the face validity of the simulated environment was evaluated. Results: While technical skills rating discriminated between surgeons according to experience (P = 0.002), there were no differences in terms of the checklist and team skills (P = 0.70). While all trainees were observed to gown/glove and handle sharps correctly, low scores were observed for some key features of communication with other team members. Low scores were obtained by the entire cohort for vigilance. Interobserver reliability was 0.90 and 0.89 for technical and team skills ratings. Conclusions: The simulated operating theatre could serve as an environment for the development of surgical competence among surgical trainees. Objective, structured, and multimodal assessment of performance during simulated procedures could serve as a basis for focused feedback during training of technical and team skills. PMID:16244534
DOE Office of Scientific and Technical Information (OSTI.GOV)
None
Pursuant to the Atomic Energy Act of 1954, as amended, and the Economy Act of 1932, the Department of Energy and its semi-autonomous National Nuclear Security Administration (NNSA) provide research and technical assistance to other Federal agencies on a reimbursable, full cost recovery basis through the Work for Others (WFO) program. For the vast majority of WFO technical projects, Department Federal officials furnish administrative project oversight while the actual detailed scientific or technical work is completed by the Department's 'management and operating' contractors. These contractors are awarded a special contract type specifically created under the Federal Acquisition Regulation to managemore » and operate Department sites and facilities, including sophisticated laboratories and technical centers, on a government-owned, contractor-operated basis. With annual expenditures exceeding $1 billion, the Department of Defense (DoD) is one of the Department's largest WFO customers. Work performed for DoD at the Department's national laboratories and other facilities includes highly technical research in areas such as nuclear weapons systems, counter-terrorism, and in-theater troop support. The National Defense Authorization Act for Fiscal Year (FY) 2009, required the Inspectors General of the DoD and the Department to review procurement methods to determine whether the Department complied with DoD procurement requirements and/or whether alternative procurement policies were in place. In response, we focused our review on projects performed by NNSA because it completes the vast majority (approximately $900 million in FY 2008) of the Department's work for DoD. As part of this effort, and, at the specific request of the DoD Office of Inspector General (DoD OIG), we identified the universe of WFO technical projects that received new funding in the fourth quarter of FY 2008 at NNSA sites. We independently reviewed a judgmental sample of 11 projects selected by the DoD OIG to meet the objectives of this audit. Our review revealed that NNSA managed DoD WFO technical projects in a manner consistent with requirements of the Atomic Energy Act of 1954, the Federal Acquisition Regulation, and the Department's implementing guidance, the Department of Energy Acquisition Regulation. Because of the very nature of the Department's management and operating contracting model, WFO projects may not be technically compliant with DoD procurement regulations in certain instances. We found that NNSA did not let new contracts or task orders for the DoD WFO technical projects we reviewed and instead managed them under its existing internal control process as part of its management and operating contract structure. In one instance, we noted that the Department had, at DoD's request, supplemented its control structure to incorporate specific DoD procurement requirements. Senior Department of Energy procurement officials acknowledged that neither the Department nor NNSA modified their existing prime contracts to incorporate specific defense procurement requirements because such modifications would be inappropriate, costly, and inefficient. In short, they informed us that the Department had developed and implemented a series of controls designed to monitor overall contractor performance, including WFO technical projects. Department and NNSA officials noted, however, that they were willing to incorporate DoD specific requirements into work orders should DoD request and fund such efforts. Additional details regarding management of WFO technical projects are discussed in the body of this report.« less
Fossil energy technical manpower: forecasts of supply and demand
DOE Office of Scientific and Technical Information (OSTI.GOV)
Friedman, B.S.
1975-10-01
The nation's overall need for engineers and physical scientists will continue to grow but is not expected to outpace the production of new graduates in these fields. Technical manpower shortages that might hinder the nation's fossil and other energy programs are not likely to occur. If a shortage does become a real threat, it could be countered by corrective actions: intensify efforts to sign up or retrieve the thousands of engineers and physical scientists who leave their technical field soon after graduation; recruit graduates, now working in other fields, who have potential for retraining in the critical area; increase themore » productivity of professionals through greater use of para-professionals or technicians; shorten the education pipeline by encouraging students to shift mid-stream from related disciplines to those in short supply; and as a last resort, admit the requisite number of non-quota immigrants with the desired training. Government agencies and industry are advised not to engage in campaigns to stimulate enrollment in specific technical fields. Such recruiting is usually a ''too-much, too-late'' measure. Forecasts of job opportunities are self-defeating and very often misleading. It is, therefore, unethical to use them as a basis for persuading high school students to enroll in specific disciplines. Certain kinds of student recruiting are, however, recommended: selective recruiting to attract more of the high-calibre students; and selective recruiting and use of stipends to attract more female, minority and/or low-income students with high potential. If universities recruit, it should be on the basis of intrinsic interest in a particular discipline, rather than on job outlook. As always, there is a need to improve the calibre and competence of the university ''end-product.'' Several programs and actions designed to do this are recommended for universities, ERDA and other governmental agencies, professional societies and industry.« less
The current document represents the third volume of a set of three volumes that address the technical basis and requirements for assessing the potential applicability of MNA as part of a ground-water remedy for plumes with nonradionuclide and/or radionuclide inorganic contamina...
The adjustable intelligent atrium sunshade
NASA Astrophysics Data System (ADS)
Ni, Xin; Sun, Jianhua; Wang, Bo
2017-05-01
This article is focused on the specific design techniques of the adjustable atrium sunshade, on the basis of the engineering analyses and practices, it is expected to alter the conventional atrium sunshade design concepts; with its uniqueness and technical excellence, this innovative atrium sunshade system exhibits rich emotions and artistry, creates an inspiring and romantic atmosphere at the atrium area of the building.
ERIC Educational Resources Information Center
Goetz, Ernest T.; And Others
Two experiments using the same design and subjects drawn from the same populations tested two accounts of schema-directed text processing, the selective attention hypothesis that suggests readers identify text elements as important or unimportant on the basis of an engaged, operative, or subsuming schema; and the slot-filling hypothesis that…
This document represents the second volume of a set of three volumes that address the technical basis and requirements for assessing the potential applicability of MNA as part of a ground-water remedy for plumes with non-radionuclide and/or radionuclide inorganic contaminants. V...
Flammable Gas Technical Basis Document
DOE Office of Scientific and Technical Information (OSTI.GOV)
CARRO, C.A.
2003-07-30
This document qualitatively evaluates the frequency and consequences of DST and SST representative flammable gas accidents and associated represented hazardous conditions without controls. Based on the evaluation, it was determined that safety-significant SSCs and/or TSRs were required to prevent or mitigate flammable gas accidents. Controls were selected and the accidents re-evaluated taking credit for the controls. Revision 1 incorporates comments received from ORP.
Physics of Communication Minicourse, Career Oriented Pre-Technical Physics. Preliminary Edition.
ERIC Educational Resources Information Center
Bullock, Bob; And Others
This minicourse was prepared for use with secondary physics students in the Dallas Independent School District and is one option in a physics program which provides for the selection of topics on the basis of student career needs and interests. This minicourse was aimed at providing students with a knowledge of the ways in which light, sound, and…
ERIC Educational Resources Information Center
Idaho State Dept. of Education, Boise. Div. of Vocational Education.
Under the Idaho state system for curriculum development in vocational education, Technical Committees made up solely of industry personnel are responsible for drawing up task lists for each program. Accordingly, a task list for dental assistants was drawn up and used as a basis for revising the curriculum guide for fundamentals of dental assisting…
ERIC Educational Resources Information Center
Bullock, Bob; And Others
This minicourse was prepared for use with secondary physics students in the Dallas Independent School District and is one option in a physics program which provides for the selection of topics on the basis of student career needs and interests. This minicourse was aimed at providing the student with an understanding of the physics of falling…
ERIC Educational Resources Information Center
Hollenbeck, Kevin
A study examined the effect of education and training on the economy and on employment outcomes. Data collected during a 1982 nationwide telephone survey of 3,500 employers were used as the basis for statistical models of voluntary and involuntary job separations and job promotions. Four major conclusions resulted from the modeling process…
Mechanical grading of round timber beams
David W. Green; Thomas M. Gorman; James W. Evans; Joseph F. Murphy
2006-01-01
Current procedures used to sort round timber beams into structural grades rely on visual grading methods and property assignments based on modification of clear wood properties. This study provides the technical basis for mechanical grading of 228 mm (9 in.) diameter round timbers. Test results on 225 round Engelmann spruceâalpine firâlodgepole pine beams demonstrate...
Chapter 11. Conservation status of boreal owls in the United States
Gregory D. Hayward
1994-01-01
Previous chapters outlined the biology and ecology of boreal owls as well as the ecology of important vegetation communities based on literature from North America and Europe. That technical review provides the basis to assess the current conservation status of boreal owls in the United States. By conservation status, we mean the demographic condition of the species as...
THE CURRENT EMPLOYMENT MARKET FOR ENGINEERS, SCIENTISTS, AND TECHNICIANS, DECEMBER 1966.
ERIC Educational Resources Information Center
AUSMUS, NORMA F.; AND OTHERS
FIELD REPORTS ON JUNE 1966 CONDITIONS IN 30 MAJOR LABOR AREAS FOR ENGINEERING, SCIENTIFIC, AND TECHNICAL OCCUPATIONS, PROVIDED BY AFFILIATES OF THE BUREAU OF EMPLOYMENT SECURITY, WERE THE BASIS FOR THIS SEMIANNUAL REPORT. THE NUMBER OF APPLICANTS HAD DECLINED 48 PERCENT TO A NEW 8-YEAR LOW, WHILE OPENINGS HAD RISEN TO 9,600, 58 PERCENT OVER THE…
Extended Basis Set Calculations of Atomization Energies: Comparison of Isogyric and Direct Results.
1989-09-01
CF . Adams and .J. Page, "Structures an Energies for Small Boron Co pounds . One and Two Boron Compounds," BRI, Technical Repor in press. 8. R. Kirsh...5000 L. Harris Dover, NJ 07801 2 Cnmnander Naval Surface Weapons Center 2 Commander ATTN: R. Bernecker, R-13 US Army Missile Command G.B. Wilmot , R
Constrained and Unconstrained Localization for Automated Inspection of Marine Propellers
1991-05-01
associated control polyhedron and hq, (0 < i < m - 1, 0 < j n - 1) are positive weights. B1 v(u) and Bj,’v) are the B-spline basis functions over open...Inspection by Database Matching. Technical Report CMU-RI-TR-85-4, The Robotics Institute, Carnegie Mellon University, March, 1985. Tuohy, S. T., Patrikalakis
ERIC Educational Resources Information Center
Crandall, William H.; Niesl, Joseph
A study of 2-year associate degree commercial arts programs in Wisconsin was conducted to determine the entry-level job requirements of commercial artists on a statewide basis; to identify skill tasks, performance levels, and learning experiences required of commercial artists; to evaluate the relevance of 2-year programs to industry requirements;…
ERIC Educational Resources Information Center
Foley, Paul
2016-01-01
The topic of more frequent and timely vocational education and training (VET) data has been an issue of interest for a number of years. Since 2015, the National Centre for Vocational Education Research (NCVER) has collected and reported data on government-funded students and courses on a quarterly basis. These quarterly data submissions are…
REDUCED PROTECTIVE CLOTHING DETERMINATIONS
DOE Office of Scientific and Technical Information (OSTI.GOV)
BROWN, R.L.
2003-06-13
This technical basis document defines conditions where reduced protective clothing can be allowed, defines reduced protective clothing, and documents the regulatory review that determines the process is compliant with the Tank Farm Radiological Control Manual (TFRCM) and Title 10, Part 835, of the Code of Federal Regulations (10CFR835). The criteria, standards, and requirements contained in this document apply only to Tank Farm Contractor (TFC) facilities.
ERIC Educational Resources Information Center
Doggette, John R.
This study was conducted to provide a basis for planning for needed energy-related occupational technology programs in two-year educational institutions. A questionnaire was sent to 1,152 junior, community, and technical colleges in fall 1975; 774 (67%) responded. The survey identified 62 existing one- and two-year energy-related programs and 132…
Durability as integral characteristic of concrete
NASA Astrophysics Data System (ADS)
Suleymanova, L. A.; Pogorelova, I. A.; Suleymanov, K. A.; Kirilenko, S. V.; Marushko, M. V.
2018-03-01
The carried-out research provides insight into the internal bonds energy in material as the basis of its durability, deformability, integrity and resistance to different factors (combined effects of external loadings and (or) environment), into the limits of technical possibilities, durability and physical reality of the process of concrete deterioration, which allows designing reliable and cost-effective ferroconcrete constructions for different purposes.
ERIC Educational Resources Information Center
Murphy, Dennis T.
An empirical study of the way children talk about art experiences is described and the meaning of this talk in terms of the cognition it represents is investigated. The criteria serving as the basis for creation of content analysis categories are subject matter, sensory elements, formal properties, technical competence, expressive elements,…