WorldWideScience

Sample records for cleanup technologies lessons

  1. Enabling cleanup technology transfer

    International Nuclear Information System (INIS)

    Technology transfer in the environmental restoration, or cleanup, area has been challenging. While there is little doubt that innovative technologies are needed to reduce the times, risks, and costs associated with the cleanup of federal sites, particularly those of the Departments of Energy (DOE) and Defense, the use of such technologies in actual cleanups has been relatively limited. There are, of course, many reasons why technologies do not reach the implementation phase or do not get transferred from developing entities to the user community. For example, many past cleanup contracts provided few incentives for performance that would compel a contractor to seek improvement via technology applications. While performance-based contracts are becoming more common, they alone will not drive increased technology applications. This paper focuses on some applications of cleanup methodologies and technologies that have been successful and are illustrative of a more general principle. The principle is at once obvious and not widely practiced. It is that, with few exceptions, innovative cleanup technologies are rarely implemented successfully alone but rather are implemented in the context of enabling processes and methodologies. And, since cleanup is conducted in a regulatory environment, the stage is better set for technology transfer when the context includes substantive interactions with the relevant stakeholders. Examples of this principle are drawn from Argonne National Laboratory's experiences in Adaptive Sampling and Analysis Programs (ASAPs), Precise Excavation, and the DOE Technology Connection (TechCon) Program. The lessons learned may be applicable to the continuing challenges posed by the cleanup and long-term stewardship of radioactive contaminants and unexploded ordnance (UXO) at federal sites

  2. Eliciting Public Attitudes Regarding Bioremediation Cleanup Technologies: Lessons Learned from a Consensus Workshop in Idaho

    International Nuclear Information System (INIS)

    During the summer of 2002, we developed and implemented a ''consensus workshop'' with Idaho citizens to elicit their concerns and issues regarding the use of bioremediation as a cleanup technology for radioactive nuclides and heavy metals at Department of Energy (DOE) sites. The consensus workshop is a derivation of a technology assessment method designed to ensure dialogue between experts and lay people. It has its origins in the United States in the form of ''consensus development conferences'' used by the National Institutes of Health (NIH) to elicit professional knowledge and concerns about new medical treatments. Over the last 25 years, NIH has conducted over 100 consensus development conferences. (Jorgensen 1995). The consensus conference is grounded in the idea that technology assessment and policy needs to be socially negotiated among many different stakeholders and groups rather than narrowly defined by a group of experts. To successfully implement new technology, the public requires access to information that addresses a full complement of issues including understanding the organization proposing the technology. The consensus conference method creates an informed dialogue, making technology understandable to the general public and sets it within perspectives and priorities that may differ radically from those of the expert community. While specific outcomes differ depending on the overall context of a conference, one expected outcome is that citizen panel members develop greater knowledge of the technology during the conference process and, sometimes, the entire panel experiences a change in attitude toward the technology and/or the organization proposing its use (Kluver 1995). The purpose of this research project was to explore the efficacy of the consensus conference model as a way to elicit the input of the general public about bioremediation of radionuclides and heavy metals at Department of Energy sites. Objectives of the research included: (1

  3. Eliciting Public Attitudes Regarding Bioremediation Cleanup Technologies: Lessons Learned from a Consensus Workshop in Idaho

    Energy Technology Data Exchange (ETDEWEB)

    Denise Lach, Principle Investigator; Stephanie Sanford, Co-P.I.

    2003-03-01

    During the summer of 2002, we developed and implemented a ''consensus workshop'' with Idaho citizens to elicit their concerns and issues regarding the use of bioremediation as a cleanup technology for radioactive nuclides and heavy metals at Department of Energy (DOE) sites. The consensus workshop is a derivation of a technology assessment method designed to ensure dialogue between experts and lay people. It has its origins in the United States in the form of ''consensus development conferences'' used by the National Institutes of Health (NIH) to elicit professional knowledge and concerns about new medical treatments. Over the last 25 years, NIH has conducted over 100 consensus development conferences. (Jorgensen 1995). The consensus conference is grounded in the idea that technology assessment and policy needs to be socially negotiated among many different stakeholders and groups rather than narrowly defined by a group of experts. To successfully implement new technology, the public requires access to information that addresses a full complement of issues including understanding the organization proposing the technology. The consensus conference method creates an informed dialogue, making technology understandable to the general public and sets it within perspectives and priorities that may differ radically from those of the expert community. While specific outcomes differ depending on the overall context of a conference, one expected outcome is that citizen panel members develop greater knowledge of the technology during the conference process and, sometimes, the entire panel experiences a change in attitude toward the technology and/or the organization proposing its use (Kluver 1995). The purpose of this research project was to explore the efficacy of the consensus conference model as a way to elicit the input of the general public about bioremediation of radionuclides and heavy metals at Department of Energy sites

  4. Innovative technologies for groundwater cleanup

    International Nuclear Information System (INIS)

    These notes provide a broad overview of current developments in innovative technologies for groundwater cleanup. In this context, groundwater cleanup technologies include site remediation methods that deal with contaminants in ground water or that may move from the vadose zone into ground water. This discussion attempts to emphasize approaches that may be able to achieve significant improvements in groundwater cleanup cost or effectiveness. However, since data for quantitative performance and cost comparisons of new cleanup methods are scarce, preliminary comparisons must be based on the scientific approach used by each method and on the site-specific technical challenges presented by each groundwater contamination situation. A large number of technical alternatives that are now in research, development, and testing can be categorized by the scientific phenomena that they employ and by the site contamination situations that they treat. After reviewing a representative selection of these technologies, one of the new technologies, the Microbial Filter method, is discussed in more detail to highlight a promising in situ groundwater cleanup technology that is now being readied for field testing

  5. Innovative technologies for soil cleanup

    International Nuclear Information System (INIS)

    These notes provide a broad overview of current developments in innovative technologies for soil cleanup. In this context, soil cleanup technologies include site remediation methods that deal primarily with the vadose zone and with relatively shallow, near-surface contamination of soil or rock materials. This discussion attempts to emphasize approaches that may be able to achieve significant improvements in soil cleanup cost or effectiveness. However, since data for quantitative performance and cost comparisons of new cleanup methods are scarce, preliminary comparisons must be based on the scientific approach used by each method and on the sits-specific technical challenges presented by each sold contamination situation. A large number of technical alternatives that are now in research, development, and testing can be categorized by the scientific phenomena that they employ and by the site contamination situations that they treat. After cataloging a representative selection of these technologies, one of the new technologies, Dynamic Underground Stripping, is discussed in more detail to highlight a promising soil cleanup technology that is now being field tested

  6. UTILIZING THE RIGHT MIX OF ENVIRONMENTAL CLEANUP TECHNOLOGIES

    International Nuclear Information System (INIS)

    The Savannah River Site (SRS) Figure 1 is a 310-square-mile United States Department of Energy nuclear facility located along the Savannah River near Aiken, South Carolina. During operations, which started in 1951, hazardous substances (chemicals and radionuclides) were released to the environment. The releases occurred as a result of inadvertent spills and waste disposal in unlined pits and basins which was common practice before environmental regulations existed. The hazardous substances have migrated to the vadose zone and groundwater in many areas of the SRS, resulting in 515 waste units that are required by environmental regulations, to undergo characterization and, if needed, remediation. In the initial years of the SRS environmental cleanup program (early 1990s), the focus was to use common technologies (such as pump and treat, air stripping, excavation and removal) that actively and tangibly removed contamination. Exclusive use of these technologies required continued and significant funding while often failing to meet acceptable clean-up goals and objectives. Recognizing that a more cost-effective approach was needed, SRS implemented new and complementary remediation methods focused on active and passive technologies targeted to solve specific remediation problems. Today, SRS uses technologies such as chemical/pH-adjusting injection, phytoremediation, underground cutoff walls, dynamic underground stripping, soil fracturing, microbial degradation, baroballs, electrical resistance heating, soil vapor extraction, and microblowers to more effectively treat contamination at lower costs. Additionally, SRS's remediation approach cost effectively maximizes cleanup as SRS works proactively with multiple regulatory agencies. Using GIS, video, animation, and graphics, SRS is able to provide an accurate depiction of the evolution of SRS groundwater and vadose zone cleanup activities to convince stakeholders and regulators of the effectiveness of various cleanup

  7. UTILIZING THE RIGHT MIX OF ENVIRONMENTAL CLEANUP TECHNOLOGIES

    Energy Technology Data Exchange (ETDEWEB)

    Bergren, C; Wade Whitaker, W; Mary Flora, M

    2007-05-25

    The Savannah River Site (SRS) Figure 1 is a 310-square-mile United States Department of Energy nuclear facility located along the Savannah River near Aiken, South Carolina. During operations, which started in 1951, hazardous substances (chemicals and radionuclides) were released to the environment. The releases occurred as a result of inadvertent spills and waste disposal in unlined pits and basins which was common practice before environmental regulations existed. The hazardous substances have migrated to the vadose zone and groundwater in many areas of the SRS, resulting in 515 waste units that are required by environmental regulations, to undergo characterization and, if needed, remediation. In the initial years of the SRS environmental cleanup program (early 1990s), the focus was to use common technologies (such as pump and treat, air stripping, excavation and removal) that actively and tangibly removed contamination. Exclusive use of these technologies required continued and significant funding while often failing to meet acceptable clean-up goals and objectives. Recognizing that a more cost-effective approach was needed, SRS implemented new and complementary remediation methods focused on active and passive technologies targeted to solve specific remediation problems. Today, SRS uses technologies such as chemical/pH-adjusting injection, phytoremediation, underground cutoff walls, dynamic underground stripping, soil fracturing, microbial degradation, baroballs, electrical resistance heating, soil vapor extraction, and microblowers to more effectively treat contamination at lower costs. Additionally, SRS's remediation approach cost effectively maximizes cleanup as SRS works proactively with multiple regulatory agencies. Using GIS, video, animation, and graphics, SRS is able to provide an accurate depiction of the evolution of SRS groundwater and vadose zone cleanup activities to convince stakeholders and regulators of the effectiveness of various cleanup

  8. Public participation in the evaluation of innovative environmental cleanup technology

    International Nuclear Information System (INIS)

    Technologies for remediation of contamination are urgently needed to clean up US Department of Energy (DOE) sites across the country. DOE is managing a national program to develop, demonstrate, and deploy new technologies with promise to expedite this cleanup. The Integrated Demonstration for Cleanup of Volatile Organic Compounds at Arid Sites (VOC-Arid ID) is one such effort. Time and resources, however, are too limited to be invested in methods of remediation that will never be deployed because they have not been rigorously evaluated or because they face the withering opposition of stakeholders. Therefore the VOC-Arid ID is assessing technology both in terms of its technical effectiveness and its stakeholder acceptability. Only if a technology performs as required and is acceptable to regulators, users of technology, and the public will the VOC-Arid ID recommend its use. What distinguishes public involvement in the VOC-Arid ID is the direct influence stakeholders have on the design of technology demonstrations by working directly with technology developers. Stakeholders participated in defining the criteria with which innovative environmental cleanup technology is being evaluated. The integrated demonstration is committed to providing stakeholders with the information they've indicated they need to reach reasoned judgments about the use of specific cleanup technologies. A guiding principle of the VOC-Arid ID is that stakeholder participation improves the technologies being developed, enhances the acceptance of the technologies, and will lead to the broad and timely deployment of appropriate and effective methods of environmental remediation. The VOC-Arid ID has involved stakeholders from the host demonstration site, Hanford, Washington, and from other and sites where the ID technologies may be deployed

  9. Utilizing the right mix of environmental cleanup technologies

    International Nuclear Information System (INIS)

    The Savannah River Site (SRS) is a 310-square-mile United States Department of Energy nuclear facility located along the Savannah River near Aiken, South Carolina. During operations, which started in 1951, hazardous substances (chemicals and radionuclides) were released to the environment. The releases occurred as a result of inadvertent spills and waste disposal in unlined pits and basins which was common practice before environmental regulations existed. The hazardous substances have migrated to the vadose zone and groundwater in many areas of the SRS, resulting in 515 waste units that are required by environmental regulations, to undergo characterization and, if needed, remediation. In the initial years of the SRS environmental cleanup program (early 1990's), the focus was to use common technologies (such as pump and treat, air stripping, excavation and removal) that actively and tangibly removed contamination. Exclusive use of these technologies required continued and significant funding while often failing to meet acceptable clean-up goals and objectives. Recognizing that a more cost-effective approach was needed, SRS implemented new and complementary remediation methods focused on active and passive technologies targeted to solve specific remediation problems. Today, SRS uses technologies such as chemical / pH-adjusting injection, phyto-remediation, underground cutoff walls, dynamic underground stripping, soil fracturing, microbial degradation, baro-balls, electrical resistance heating, soil vapor extraction, and micro-blowers to more effectively treat contamination at lower costs. Additionally, SRS's remediation approach cost effectively maximizes cleanup as SRS works pro-actively with multiple regulatory agencies. Using GIS, video, animation, and graphics, SRS is able to provide an accurate depiction of the evolution of SRS groundwater and vadose zone cleanup activities to convince stakeholders and regulators of the effectiveness of various cleanup

  10. Combining expedited cleanup with innovative technology demonstrations

    International Nuclear Information System (INIS)

    A Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) expedited response action (ERA) has been initiated at the Hanford Site, Washington, for the removal of carbon tetrachloride from contaminated soils to mitigate further contamination of the ground water. Soil vapor extraction with aboveground collection and treatment was chosen as the preferred remedial technology for the First phase of the ERA. At the same time, innovative technology demonstrations are being conducted in coordination with the ERA to determine the viability of emerging technologies that can be used to characterize, remediate, and monitor carbon tetrachloride and co-contaminants. The overall goal is to improve the performance and decrease the costs of carbon tetrachloride remediation while maintaining a safe working environment. (author)

  11. Nuclear environment clean-up technology development

    Energy Technology Data Exchange (ETDEWEB)

    Choi, Byung; Moon, Jei Kwon; Lee, Kune Woo; Won, Hui Jun; Jung, Chong Hun; Kim, Gye Nam; Seo, Bum Kyoung; Kim, Sung Kyun; Hong, Sang Bum; Choi, Wun Dong

    2012-03-15

    A laser ablation decontamination technology which is reportedly effective for a removal of fixed contaminants has been developed for three years as the first stage of the development. Lab scale experimental equipment was fabricated and the process variables have been assessed for determination of appropriate decontamination conditions at the laser wave lengths of 1,064 nm and 532 nm, respectively. The decontamination tests using radioactive specimens showed that the decontamination efficiency was about 100 which is quite a high value. An electrokinetic-flushing, an agglomeration leaching and a supercritical CO2 soil decontamination technology were development for a decontamination of radioactive soil wastes from the decommissioned sites of the TRIGA research reactor and the uranium conversion facilities. The remediation monitoring key technologies such as a representative sample taking and a measurement concept for the vertical distribution of radionuclides were developed for an assessment of the site remediation. Also an One-Dimensional Water Flow and Contaminant Transport in Unsaturated Zone (FTUNS) code was developed to interpretate the radionuclide migration in the unsaturated zone. The chemical gel decontamination process with more effective drying, rheological and decontaminating properties than the existing commercial gel decontamination technology has been developed for a decontamination of the fixed contamination of extremely high radiation facilities. Its performance were verified for the in-situ large scale application through the demonstration test using the radioactive facilities in KNFC contaminated with uranium.

  12. Nuclear environment clean-up technology development

    International Nuclear Information System (INIS)

    A laser ablation decontamination technology which is reportedly effective for a removal of fixed contaminants has been developed for three years as the first stage of the development. Lab scale experimental equipment was fabricated and the process variables have been assessed for determination of appropriate decontamination conditions at the laser wave lengths of 1,064 nm and 532 nm, respectively. The decontamination tests using radioactive specimens showed that the decontamination efficiency was about 100 which is quite a high value. An electrokinetic-flushing, an agglomeration leaching and a supercritical CO2 soil decontamination technology were development for a decontamination of radioactive soil wastes from the decommissioned sites of the TRIGA research reactor and the uranium conversion facilities. The remediation monitoring key technologies such as a representative sample taking and a measurement concept for the vertical distribution of radionuclides were developed for an assessment of the site remediation. Also an One-Dimensional Water Flow and Contaminant Transport in Unsaturated Zone (FTUNS) code was developed to interpretate the radionuclide migration in the unsaturated zone. The chemical gel decontamination process with more effective drying, rheological and decontaminating properties than the existing commercial gel decontamination technology has been developed for a decontamination of the fixed contamination of extremely high radiation facilities. Its performance were verified for the in-situ large scale application through the demonstration test using the radioactive facilities in KNFC contaminated with uranium

  13. Experiences and lessons learned worldwide in the cleanup and decommissioning of nuclear facilities in the aftermath of accidents

    International Nuclear Information System (INIS)

    This publication reviews experiences in IAEA Member States relevant to the cleanup and decommissioning of nuclear facilities in the aftermath of accidents and provides an overview of lessons learned worldwide. It also updates information from earlier publications on this topic, according to the different phases of activity after the accident has been declared ended (site stabilization, post-accident cleanup, safe enclosure) and, in the longer term, final decommissioning and site remediation

  14. Combining innovative technology demonstrations with dense nonaqueous phase liquids cleanup

    International Nuclear Information System (INIS)

    Radioactively contaminated acidic aqueous wastes and organic liquids were discharged to the soil column at three disposal sites within the 200 West Area of the Hanford Site, Washington. As a result, a portion of the underlying groundwater is contaminated with carbon tetrachloride several orders of magnitude above the maximum contaminant level accepted for a drinking water supply. Treatability testing and cleanup actions have been initiated to remove the contamination from both the unsaturated soils to minimize further groundwater contamination and the groundwater itself. To expedite cleanup, innovative technologies for (1) drilling, (2) site characterization, (3) monitoring, (4) well field development, and (5) contaminant treatment are being demonstrated and subsequently used where possible to improve the rates and cost savings associated with the removal of carbon tetrachloride from the soils and groundwater

  15. Soil and groundwater cleanup: benefits and limits of emerging technologies

    Energy Technology Data Exchange (ETDEWEB)

    Caliman, Florentina Anca; Robu, Brindusa Mihaela; Smaranda, Camelia; Pavel, Vasile Lucian; Gavrilescu, Maria [Technical University of Iasi, Department of Environmental Engineering and Management, Faculty of Chemical Engineering and Environmental Protection, Iasi (Romania)

    2011-04-15

    Contaminated soil and groundwater have been the subject of study and research, so that the field of remediation has grown and evolved, continually developing and adopting new technologies in attempts to improve the decontamination. The cleanup of environmental pollution involves a variety of techniques, ranging from simple biological processes to advanced engineering technologies. Cleanup activities may also address a wide range of contaminants. This article is a short analysis of the technologies for cleaning up groundwater and soil, highlighting knowledge and information gaps. Challenges and strategies for cleaning up different types of contaminants, mainly heavy metals and persistent organic compounds are described. Included are technologies that treat ground water contaminants in place in the subsurface and soil technologies that treat the soil either in place or on site in a treatment unit. Emerging technologies such as those based on oxidation-reduction, bioremediation, and nanotechnologies are covered. It is evident that for a good efficiency of remediation, techniques or even whole new technologies may be incorporated into an existing technology as a treatment train, improving its performance or overcome limitations. Several economic and decision-making elements are developed in the final part, based on the analysis carried out throughout the article. The work highlights the fact that excellence in research and technology progress could be attained by the development of technologies to deal more effectively and economically with certain toxic contaminants such as heavy metals, volatile organic compounds, and persistent organic pollutants, associated with optimization of technologies under field remediation conditions and requirements, improving capacity and yields, and reducing costs. Moreover, increasing knowledge of the scope and problem of equipment development could improve the benefits. (orig.)

  16. A software tool for soil clean-up technology selection

    International Nuclear Information System (INIS)

    Soil remediation is a difficult, time-consuming and expensive operation. A variety of mature and emerging soil remediation technologies is available and future trends in remediation will include continued competition among environmental service companies and technology developers, which will definitely result in further increase in the clean-up options. Consequently, the demand has enhanced developing decision support tools that could help the decision makers to select the most appropriate technology for the specific contaminated site, before the costly remedial actions are taken. Therefore, a software tool for soil clean-up technology selection is currently being developed with the aim of closely working with human decision makers (site owners, local community representatives, environmentalists, regulators, etc.) to assess the available technologies and preliminarily select the preferred remedial options. The analysis for the identification of the best remedial options is based on technical, financial, environmental, and social criteria. These criteria are ranked by all involved parties to determine their relative importance for a particular project. (author)

  17. Technologies for environmental cleanup: Toxic and hazardous waste management

    International Nuclear Information System (INIS)

    This is the second in a series of EUROCOURSES conducted under the title, ''Technologies for Environmental Cleanup.'' To date, the series consist of the following courses: 1992, soils and groundwater; 1993, Toxic and Hazardous Waste Management. The 1993 course focuses on recent technological developments in the United States and Europe in the areas of waste management policies and regulations, characterization and monitoring of waste, waste minimization and recycling strategies, thermal treatment technologies, photolytic degradation processes, bioremediation processes, medical waste treatment, waste stabilization processes, catalytic organic destruction technologies, risk analyses, and data bases and information networks. It is intended that this course ill serve as a resource of state-of-the-art technologies and methodologies for the environmental protection manager involved in decisions concerning the management of toxic and hazardous waste

  18. High-level waste vitrification off-gas cleanup technology

    International Nuclear Information System (INIS)

    This brief overview is intended to be a basis for discussion of needs and problems existing in the off-gas clean-up technology. A variety of types of waste form and processes are being developed in the United States and abroad. A description of many of the processes can be found in the Technical Alternative Documents (TAD). Concurrently, off-gas processing systems are being developed with most of the processes. An extensive review of methodology as well as decontamination factors can be found in the literature. Since it is generally agreed that the most advanced solidification process is vitrification, discussion here centers about the off-gas problems related to vitrification. With a number of waste soldification facilities around the world in operation, it can be shown that present technology can satisfy the present requirement for off-gas control. However, a number of areas within the technology base show potential for improvement. Fundamental as well as verification studies are needed to obtain the improvements

  19. Design improvements and lessons learned for the TFTR Tritium Cleanup and Gas Holding Tank Sampling Systems

    International Nuclear Information System (INIS)

    Key to the Deuterium-Tritium operations at TFTR has been the support provided by the Tritium Cleanup System (TCS) and the associated Gas Holding Tank (GHT) and Sample Loops. The TCS disposes of hydrogen waste products from the Torus by oxidizing them over a catalyst and then absorbing the resulting moist gas onto molecular sieve. The GHT Sample Loops provide the analytical capabilities required to measure gas composition and activity in the GHTs before the gas is passed into TCS. At present the authors have accumulated significant operating experience running tritium through both TCS and the GHT Sample Loops. As experience has been gained they have made improvements to the system hardware resulting in increased reliability and performance. Hardware changes include the upgrading to metal bellows type vacuum pumps, the addition of service ports for enhanced maintenance capabilities, and improvements made to the diagnostic capabilities for the GHT Sample Loops. The operation of TCS has also provided us with lessons learned in trouble shooting some interesting problems, one being the introduction of Sulfur Hexafluoride, an insulating gas used in the Neutral Beam system, into TCS and its effect on the platinum catalyst. Other areas of interest include the experience gained in the continuing task of identification and repair of leaks in the system, and the challenge of instrumentation and flow control with varying gas densities

  20. New technologies aid DOE in site characterization, cleanup

    International Nuclear Information System (INIS)

    The Department of Energy is using what reportedly is the world's largest remotely operated mobile-work system to excavate a landfill contaminated with radioactive materials at the Idaho National Engineering Laboratory. The 1,500-ton, self-propelled machine made by Sonsub Inc. (Houston) will span and excavate landfills up to 120 feet wide. As the unit digs, it will separate waste from the soil, package the waste for transport, then backfill the pit. DOE will use the machine to excavate Pit 9, a 400-foot-long, 120-foot-wide landfill that was used as a waste-disposal site in the 1960s. Using computer modeling applications to identify hazardous and radioactive wastes can protect workers from exposure and, in some cases, reduce remediation costs. Canberra Industries (Meridien, Conn.) in November was awarded a contract by EG and G Mound Applied Technologies to perform gamma spectroscopy radiological waste characterization on waste containers that have been stored since 1978 at the Mound site in Ohio. The 55-gallon drums and boxes at the site reportedly contain transuranic waste; however, officials say they anticipate that, once characterization is performed, about 25% of the waste will be downgraded to low-level waste (below 100nCI/gm). In another application involving landfill cleanup, Komar Industries Inc. (Groveport, Ohio) in late 1995 was contracted to design and construct a system for processing radioactive waste from an unnamed DOE landfill. The company says it will design a triauger with injector configuration to serve as a fully contained size-reduction, blending and feeding system that will allow engineers to blend a variety of wastes found at the site. Machined, O-ring, sealed surfaces will maintain a negative water column under normal operations. The system will be designed to handle pressures up to 10 bar, while the processor will have a 6-cubic-yard charge capacity and the ability to accept 15 to 20 charges per hour

  1. Technology of tiered teaching on music lessons

    OpenAIRE

    Shukirova G.K.

    2013-01-01

    This paper discusses the problem of the use of technology of tiered teaching on music lessons in elementary school. These takes consider the level of knowledge of the music, the ability to maintain the rules of listening to the music, the rules of playing music, aesthetic taste and spiritual development of the student.

  2. UTILIZING INNOVATIVE TECHNOLOGIES FOR ENVIRONMENTAL CLEAN-UP AT SAVANNAH RIVER SITE

    International Nuclear Information System (INIS)

    The Savannah River Site (SRS) is a 310-square-mile United States Department of Energy nuclear facility located along the Savannah River near Aiken, South Carolina. During operations, which started in 1951, hazardous substances (chemicals and radionuclides) were released to the environment. The releases occurred as a result of inadvertent spills and waste disposal in unlined pits and basins which was common practice before environmental regulations existed. The hazardous substances have migrated to the vadose zone and groundwater in many areas of the SRS, resulting in 515 waste units and facilities that are required by environmental regulations, to undergo characterization and, if needed, remediation. In the initial years of the SRS environmental cleanup program (early 1990s), the focus was to use common technologies (such as pump and treat, air stripping, excavation and removal) that actively and tangibly removed contamination. Exclusive use of these technologies required continued and significant funding while often failing to meet acceptable clean-up goals and objectives. Recognizing that a more cost-effective approach was needed, SRS implemented new and complementary remediation methods focused on active and passive technologies targeted to solve specific remediation problems. Today, SRS uses technologies such as chemical/pH-adjusting injection, phytoremediation, underground cutoff walls, dynamic underground stripping, soil fracturing, microbial degradation, baroballs, electrical resistance heating, soil vapor extraction, and microblowers to more effectively treat contamination at lower costs. Additionally, SRS's remediation approach cost effectively maximizes cleanup as SRS works proactively with multiple regulatory agencies. Using GIS, video, animation, and graphics, SRS is able to provide an accurate depiction of the evolution of SRS groundwater and vadose zone cleanup activities to convince stakeholders and regulators of the effectiveness of various cleanup

  3. UTILIZING INNOVATIVE TECHNOLOGIES FOR ENVIRONMENTAL CLEAN-UP, SAVAHHAH RIVER SITE

    Energy Technology Data Exchange (ETDEWEB)

    Bergren, C

    2009-01-07

    The Savannah River Site (SRS) is a 310-square-mile United States Department of Energy nuclear facility located along the Savannah River near Aiken, South Carolina. During operations, which started in 1951, hazardous substances (chemicals and radionuclides) were released to the environment. The releases occurred as a result of inadvertent spills and waste disposal in unlined pits and basins which was common practice before environmental regulations existed. The hazardous substances have migrated to the vadose zone and groundwater in many areas of the SRS, resulting in 515 waste units and facilities that are required by environmental regulations, to undergo characterization and, if needed, remediation. In the initial years of the SRS environmental cleanup program (early 1990s), the focus was to use common technologies (such as pump and treat, air stripping, excavation and removal) that actively and tangibly removed contamination. Exclusive use of these technologies required continued and significant funding while often failing to meet acceptable clean-up goals and objectives. Recognizing that a more cost-effective approach was needed, SRS implemented new and complementary remediation methods focused on active and passive technologies targeted to solve specific remediation problems. Today, SRS uses technologies such as chemical/pH-adjusting injection, phytoremediation, underground cutoff walls, dynamic underground stripping, soil fracturing, microbial degradation, baroballs, electrical resistance heating, soil vapor extraction, and microblowers to more effectively treat contamination at lower costs. Additionally, SRS's remediation approach cost effectively maximizes cleanup as SRS works proactively with multiple regulatory agencies. Using GIS, video, animation, and graphics, SRS is able to provide an accurate depiction of the evolution of SRS groundwater and vadose zone cleanup activities to convince stakeholders and regulators of the effectiveness of various

  4. Lessons learned at Savannah River: Phased-in approach lets new groundwater cleanup methods complement traditional ones

    International Nuclear Information System (INIS)

    The Savannah River Site, near Aiken, SC, in 1983 began one of the largest and most successful cleanup programs for soil and groundwater contaminated with industrial solvents. Coordinated, phased implementation of groundwater pump-and-treat, soil-vapor extraction and other technologies at the site's Administration and Materials Manufacturing areas has resulted in rapid cleanup progress. To date: more than 2.25 billion gallons of contaminated groundwater have been treated by two air strippers removing over 334,000 pounds of solvents; soil-vapor extraction units have removed more than 39,000 pounds of solvent from the vadose zone since they were installed last year; several innovative technology demonstrations performed at the site since 1988--including horizontal wells, air sparging, co-metabolic in-situ bioremediation, radiofrequency and joule heating, solvent collection and recycling--have removed or destroyed more than 20,000 pounds of solvent. Cleanup activities have removed about 11% of the original 3.5 million pounds of industrial solvents generated from process-waste disposal operations conducted at the site from the 1950s through 1979

  5. Organizing mathematics lesson using informational communicational technologies

    OpenAIRE

    Kareivaitė, Laima

    2006-01-01

    Computer technologies progressively penetrate into educational system, influence its management and teaching process. Pupils have possibilities to use computers at home and at school. Teachers use them in the teaching process. While IT weren’t used in the teaching process lessons were dry and boring. Though, these days the rapid expansions of the computer network opens wide possibilities for teachers to choose reaching softwear and new teaching methods which helps pupils to develop awareness ...

  6. Strategic Program Planning Lessons Learned In Developing The Long-Term Stewardship Science and Technology Roadmap

    Energy Technology Data Exchange (ETDEWEB)

    Dixon, B.W.; Hanson, D.J.; Matthern, G.E.

    2003-04-24

    Technology roadmapping is a strategic planning method used by companies to identify and plan the development of technologies necessary for new products. The U.S. Department of Energy's Office of Environmental Management has used this same method to refine requirements and identify knowledge and tools needed for completion of defined missions. This paper describes the process of applying roadmapping to clarify mission requirements and identify enhancing technologies for the Long-Term Stewardship (LTS) of polluted sites after site cleanup has been completed. The nature of some contamination problems is such that full cleanup is not achievable with current technologies and some residual hazards remain. LTS maintains engineered contaminant barriers and land use restriction controls, and monitors residual contaminants until they no longer pose a risk to the public or the environment. Roadmapping was used to clarify the breadth of the LTS mission, to identify capability enhancements needed to improve mission effectiveness and efficiency, and to chart out the research and development efforts to provide those enhancements. This paper is a case study of the application of roadmapping for program planning and technical risk management. Differences between the planned and actual application of the roadmapping process are presented along with lessons learned. Both the process used and lessons learned should be of interest for anyone contemplating a similar technology based planning effort.

  7. Lessons learned from US Department of Energy programs on decontamination and demolition, radioactive waste processing and shipping, and environmental restoration of former nuclear technology and production sites

    International Nuclear Information System (INIS)

    The US Department of Energy has contracted for the cleanup and closure of former weapons sites using turn-key, performance-incentive contracts that comprise the complete range of project management, decontamination and demolition, waste management, and environmental restoration technologies. This paper describes several of the technologies developed and deployed in each of the four technical areas, and also the management strategies and systems employed to integrate the various technologies into the overall cleanup plan. Lessons learned from the approaches taken at the Rocky Flats, Hanford, Mound and Savannah River Sites include contractual, regulatory, and technological aspects of the work. (author)

  8. Hanford Site Cleanup Challenges and Opportunities for Science and Technology--A Strategic Assessment

    Energy Technology Data Exchange (ETDEWEB)

    Wood, Thomas W.; Johnson, Wayne L.; Kreid, Dennis K.; Walton, Terry L.

    2001-02-01

    The sheer expanse of the Hanford Site, the inherent hazards associated with the significant inventory of nuclear materials and wastes, the large number of aging contaminated facilities, the diverse nature and extent of environmental contamination, and the proximity to the Columbia River make Hanford perhaps the world's largest and most complex environmental cleanup project. It is not possible to address the more complex elements of this enormous challenge in a cost-effective manner without strategic investments in science and technology. Success requires vigorous and sustained efforts to enhance the science and technology basis, develop and deploy innovative solutions, and provide firm scientific bases to support site cleanup and closure decisions at Hanford.

  9. Site cleanup lessons learned: formerly utilized sites remedial action program (FUSRAP) Middlesex Site

    International Nuclear Information System (INIS)

    The Middlesex Site discussed in this paper is the Middlesex Sampling Plant (MSP) property, some properties adjacent to the plant, and some vicinity properties. This site has been designated as part of the Formerly Utilized Sites Remedial Action Program (FUSRAP). The steps taken during the decontamination and restoration work are described; there is also discussion of special equipment, new techniques, unexpected problems, and lessons learned which might be applicable to future remedial action tasks. The remedial actions resulted in moving the contaminated materials from the adjacent and vicinity properties to an interim stockpile area. At the stockpile area the material is protected and migration prevented under a controlled monitoring program. Determination of the final disposition of the material has not been made. 33 figures

  10. Environmental Cleanup of the East Tennessee Technology Park Year One - Execution with Certainty SM - 13120

    International Nuclear Information System (INIS)

    On August 1, 2011, URS - CH2M Oak Ridge LLC (UCOR) began its five-year, $1.4 billion cleanup of the East Tennessee Technology Park (ETTP), located on the U.S. Department of Energy's (DOE) Oak Ridge Reservation in Tennessee. UCOR will close out cleanup operations that began in 1998 under a previous contract. When the Contract Base scope of work [1] is completed in 2016, the K-25 gaseous diffusion building will have been demolished and all waste dispositioned, demolition will have started on the K-27 gaseous diffusion building, all contact-handled and remote-handled transuranic waste in inventory (approximately 500 cubic meters) will have been transferred to the Transuranic Waste Processing Center, previously designated 'No-Path-To-Disposition Waste' will have been dispositioned to the extent possible, and UCOR will have managed DOE Office of Environmental Management (EM)- owned facilities at ETTP, Oak Ridge National Laboratory (ORNL), and the Y-12 National Security Complex in a safe and cost-effective manner. Since assuming its responsibilities as the ETTP cleanup contractor, UCOR has completed its life-cycle Performance Measurement Baseline; received its Earned Value Management System (EVMS) certification; advanced the deactivation and demolition (D and D) of the K-25 gaseous diffusion building; recovered and completed the Tank W-1A and K-1070-B Burial Ground remediation projects; characterized, packaged, and shipped contact-handled transuranic waste to the Transuranic Waste Processing Center; disposed of more than 90,000 cubic yards of cleanup waste while managing the Environmental Management Waste Management Facility (EMWMF); and provided operations, surveillance, and maintenance activities at DOE EM facilities at ETTP, ORNL, and the Y-12 National Security Complex. Project performance as of December 31, 2012 has been excellent: - Cost Performance Index - 1.06; - Schedule Performance Index - 1.02. At the same time, since safety is the foundation of all cleanup

  11. A systematic assessment of the state of hazardous waste clean-up technologies

    International Nuclear Information System (INIS)

    West Virginia University (WVU) and the US DOE Morgantown Energy Technology Center (METC) entered into a Cooperative Agreement on August 29, 1992 entitled ''Decontamination Systems Information and Research Programs.'' Stipulated within the Agreement is the requirement that WVU submit to METC a series of Technical Progress Report for Year 1 of the Agreement. This report reflects the progress and/or efforts performed on the following nine technical projects encompassed by the Year 1 Agreement for the period of April 1 through June 30, 1993: Systematic assessment of the state of hazardous waste clean-up technologies; site remediation technologies -- drain-enhanced soil flushing (DESF) for organic contaminants removal; site remediation technologies -- in situ bioremediation of organic contaminants; excavation systems for hazardous waste sites; chemical destruction of polychlorinated biphenyls; development of organic sensors -- monolayer and multilayer self-assembled films for chemical sensors; Winfield lock and dam remediation; Assessments of Technologies for hazardous waste site remediation -- non-treatment technologies and pilot scale test facility implementation; and remediation of hazardous sites with stream reforming

  12. In Situ Sediment Treatment Using Activated Carbon: A Demonstrated Sediment Cleanup Technology

    Science.gov (United States)

    Patmont, Clayton R; Ghosh, Upal; LaRosa, Paul; Menzie, Charles A; Luthy, Richard G; Greenberg, Marc S; Cornelissen, Gerard; Eek, Espen; Collins, John; Hull, John; Hjartland, Tore; Glaza, Edward; Bleiler, John; Quadrini, James

    2015-01-01

    This paper reviews general approaches for applying activated carbon (AC) amendments as an in situ sediment treatment remedy. In situ sediment treatment involves targeted placement of amendments using installation options that fall into two general approaches: 1) directly applying a thin layer of amendments (which potentially incorporates weighting or binding materials) to surface sediment, with or without initial mixing; and 2) incorporating amendments into a premixed, blended cover material of clean sand or sediment, which is also applied to the sediment surface. Over the past decade, pilot- or full-scale field sediment treatment projects using AC—globally recognized as one of the most effective sorbents for organic contaminants—were completed or were underway at more than 25 field sites in the United States, Norway, and the Netherlands. Collectively, these field projects (along with numerous laboratory experiments) have demonstrated the efficacy of AC for in situ treatment in a range of contaminated sediment conditions. Results from experimental studies and field applications indicate that in situ sequestration and immobilization treatment of hydrophobic organic compounds using either installation approach can reduce porewater concentrations and biouptake significantly, often becoming more effective over time due to progressive mass transfer. Certain conditions, such as use in unstable sediment environments, should be taken into account to maximize AC effectiveness over long time periods. In situ treatment is generally less disruptive and less expensive than traditional sediment cleanup technologies such as dredging or isolation capping. Proper site-specific balancing of the potential benefits, risks, ecological effects, and costs of in situ treatment technologies (in this case, AC) relative to other sediment cleanup technologies is important to successful full-scale field application. Extensive experimental studies and field trials have shown that when

  13. Lessons from Thomas Edison's Technological and Social Forecasts

    OpenAIRE

    Steven Schnaars

    2006-01-01

    Thomas Edison's inventions have had an unparalleled influence on modern life. But Edison was also a technological forecaster, offering his vision of which technologies would (and would not) dominate our lives in the future. Steve Schnaars looks back on Edison's 13 technological and social forecasts to evaluate the inventor's predictive hits and blunders. The main lesson he sees in Edison's technological forecasting is that spreading risk by pursuing multiple paths to future market success is ...

  14. Using Advanced Mixed Waste Treatment Technology To Meet Accelerated Cleanup Program Milestones

    International Nuclear Information System (INIS)

    Some DOE Complex facilities are entering the late stages of facility closure. As waste management operations are completed at these sites, remaining inventories of legacy mixed wastes must be finally disposed. These wastes have unique physical, chemical and radiological properties that have made their management troublesome, and hence why they have remained on site until this late stage of closure. Some of these wastes have had no approved or practical treatment alternative until just recently. Results are provided from using advanced mixed waste treatment technology to perform two treatment campaigns on these legacy wastes. Combinations of macro-encapsulation, vacuum thermal desorption (VTD), and chemical stabilization, with off-site incineration of the organic condensate, provided a complete solution to the problem wastes. One program included approximately 1,900 drums of material from the Fernald Environmental Management Project. Another included approximately 1,200 drums of material from the Accelerated Cleanup Program at the Oak Ridge Reservation. Both of these campaigns were conducted under tight time schedules and demanding specifications, and were performed in a matter of only a few months each. Coordinated rapid waste shipment, flexible permitting and waste acceptance criteria, adequate waste receiving and storage capacity, versatile feed preparation and sorting capability, robust treatment technology with a broad feed specification, and highly reliable operations were all valuable components to successful accomplishment of the project requirements. Descriptions of the waste are provided; material that was difficult or impossible to treat in earlier phases of site closure. These problem wastes included: 1) the combination of special nuclear materials mixed with high organic chemical content and/or mercury, 2) high toxic metal content mixed with high organic chemical content, and 3) very high organic chemical content mixed with debris, solids and sludge

  15. Buried Waste Integrated Demonstration lessons learned: 1993 technology demonstrations

    International Nuclear Information System (INIS)

    An integrated technology demonstration was conducted by the Buried Waste Integrated Demonstration (BWID) at the Idaho National Engineering Laboratory Cold Test Pit in the summer of 1993. This program and demonstration was sponsored by the US Department of Energy Office of Technology Development. The demonstration included six technologies representing a synergistic system for the characterization and retrieval of a buried hazardous waste site. The integrated technology demonstration proved very successful and a summary of the technical accomplishments is presented. Upon completion of the integrated technology demonstration, cognizant program personnel participated in a lessons learned exercise. This exercise was conducted at the Simplot Decision Support Center at Idaho State University and lessons learned activity captured additional information relative to the integration of technologies for demonstration purposes. This information will be used by BWID to enhance program planning and strengthen future technology demonstrations

  16. Development of a new chemical technology for cleanup of VVER steam generators

    International Nuclear Information System (INIS)

    As shows the maintenance experience of SG's, the long-time maintenance them without chemical cleanup on secondary-side results in accumulation of considerable amounts of depositions of oxides of iron with a high content of copper on outside of tubes. The deposit accumulation creates conditions for concentrating of salts which promote corrosion and, then, the loosing of inter-contour tightness. Therefore the experts do not have any doubts in necessity of chemical cleanups and the chemical cleanups were carried out at some NPP's with VVER during last years. However it is possible to say, that these cleanups were carried out not by the best mode - the same main reagents had been used in order to dissolve the copper and iron oxides. For example, all cleanups at Balakovo NPP in 1996-1997 years had the common deficiency - even during 5. final stage of process the copper prolongs to be washed. By our opinion, the reasons of it are the poor scientific and technical justification of this process. Therefore at various NPP's with VVER cleanups realize by various techniques. The process of chemical cleanup, close to offered in the present work, was repeated many times utilized at BN-600 Belojarsk NPP and at BN-350 Shevtchenko NPP. The purposes of the present work are: 1. Research the behaviours of physicochemical processes during dissolution of components of depositions and their mixtures with use of the various formulas; 2. Analysis of the carried out chemical cleanups of PGV-1000M at an example of Balakovo NPP; 3. Development of a new process of SG's cleanup on the base of experimental researches and analysis; 4. Check of this process on the samples of full-scale depositions from SG Balakovo NPP. (authors)

  17. Development of a new chemical technology for cleanup of VVER steam generators

    Energy Technology Data Exchange (ETDEWEB)

    Smykov, V.B.; Yermolaev, N.P. [IPPE, Obninsk (Russian Federation); Ivanov, V.N. [Balakovo NPP (Russian Federation)

    2002-07-01

    As shows the maintenance experience of SG's, the long-time maintenance them without chemical cleanup on secondary-side results in accumulation of considerable amounts of depositions of oxides of iron with a high content of copper on outside of tubes. The deposit accumulation creates conditions for concentrating of salts which promote corrosion and, then, the loosing of inter-contour tightness. Therefore the experts do not have any doubts in necessity of chemical cleanups and the chemical cleanups were carried out at some NPP's with VVER during last years. However it is possible to say, that these cleanups were carried out not by the best mode - the same main reagents had been used in order to dissolve the copper and iron oxides. For example, all cleanups at Balakovo NPP in 1996-1997 years had the common deficiency - even during 5. final stage of process the copper prolongs to be washed. By our opinion, the reasons of it are the poor scientific and technical justification of this process. Therefore at various NPP's with VVER cleanups realize by various techniques. The process of chemical cleanup, close to offered in the present work, was repeated many times utilized at BN-600 Belojarsk NPP and at BN-350 Shevtchenko NPP. The purposes of the present work are: 1. Research the behaviours of physicochemical processes during dissolution of components of depositions and their mixtures with use of the various formulas; 2. Analysis of the carried out chemical cleanups of PGV-1000M at an example of Balakovo NPP; 3. Development of a new process of SG's cleanup on the base of experimental researches and analysis; 4. Check of this process on the samples of full-scale depositions from SG Balakovo NPP. (authors)

  18. Lessons learned in the cleanup of Three Mile Island Unit 2 as determined by the TMI-2 safety advisory board

    International Nuclear Information System (INIS)

    The Three Mile Island Unit 2 Safety Advisor Board (SAB) was established on March 16, 1981, to provide GPU Nuclear Corporation management with a high-level, independent appraisal of the cleanup program as related to public and worker health safety. In its 7 1/2 yr of existence, the SAB has reviewed many aspects of cleanup activities, including regulations, safety, risk assessment, project organization, project financing, project procedures, technical planning, and public communications. The primary objective of the SAB has been to ensure the continued safety of the surrounding community and of the on-site work force. It was of paramount importance that the reactor plant be placed in a stable, controllable condition as soon as possible. The work of the SAB can be described under three major headings: scientific, engineering, and administrative. Included under the scientific heading is recriticality, environmental effects, and accident scenario. The engineering heading includes removal of fuel debris, methods of decontamination, control of personnel exposures, and personnel contamination control. The administrative heading includes over control of cleanup operations, cost and schedule control, organization, project planning, and communications with the public

  19. Prospects for pyrolysis technologies in managing municipal, industrial, and DOE cleanup wastes

    Energy Technology Data Exchange (ETDEWEB)

    Reaven, S.J. [State Univ. of New York, Stony Brook, NY (United States)

    1994-12-01

    Pyrolysis converts portions of municipal solid wastes, hazardous wastes, and special wastes such as tires, medical wastes, and even old landfills into solid carbon and a liquid or gaseous hydrocarbon stream. Pyrolysis heats a carbonaceous waste stream typically to 290--900 C in the absence of oxygen, and reduces the volume of waste by 90% and its weight by 75%. The solid carbon char has existing markets as an ingredient in many manufactured goods, and as an adsorbent or filter to sequester certain hazardous wastes. Pyrolytic gases may be burned as fuel by utilities, or liquefied for use as chemical feedstocks, or low-pollution motor vehicle fuels and fuel additives. This report analyzes the potential applications of pyrolysis in the Long Island region and evaluates for the four most promising pyrolytic systems their technological and commercial readiness, their applicability to regional waste management needs, and their conformity with DOE requirements for environmental restoration and waste management. This summary characterizes their engineering performance, environmental effects, costs, product applications, and markets. Because it can effectively treat those wastes that are inadequately addressed by current systems, pyrolysis can play an important complementing role in the region`s existing waste management strategy. Its role could be even more significant if the region moves away from existing commitments to incineration and MSW composting. Either way, Long Island could become the center for a pyrolysis-based recovery services industry serving global markets in municipal solid waste treatment and hazardous waste cleanup. 162 refs.

  20. Prospects for pyrolysis technologies in managing municipal, industrial, and DOE cleanup wastes

    International Nuclear Information System (INIS)

    Pyrolysis converts portions of municipal solid wastes, hazardous wastes, and special wastes such as tires, medical wastes, and even old landfills into solid carbon and a liquid or gaseous hydrocarbon stream. Pyrolysis heats a carbonaceous waste stream typically to 290--900 C in the absence of oxygen, and reduces the volume of waste by 90% and its weight by 75%. The solid carbon char has existing markets as an ingredient in many manufactured goods, and as an adsorbent or filter to sequester certain hazardous wastes. Pyrolytic gases may be burned as fuel by utilities, or liquefied for use as chemical feedstocks, or low-pollution motor vehicle fuels and fuel additives. This report analyzes the potential applications of pyrolysis in the Long Island region and evaluates for the four most promising pyrolytic systems their technological and commercial readiness, their applicability to regional waste management needs, and their conformity with DOE requirements for environmental restoration and waste management. This summary characterizes their engineering performance, environmental effects, costs, product applications, and markets. Because it can effectively treat those wastes that are inadequately addressed by current systems, pyrolysis can play an important complementing role in the region's existing waste management strategy. Its role could be even more significant if the region moves away from existing commitments to incineration and MSW composting. Either way, Long Island could become the center for a pyrolysis-based recovery services industry serving global markets in municipal solid waste treatment and hazardous waste cleanup. 162 refs

  1. The Clean Coal Technology Program: Lessons learned

    Energy Technology Data Exchange (ETDEWEB)

    1994-07-01

    The Clean Coal Technology (CCT) Program is a unique partnership between the federal government and industry that has as its primary goal the successful introduction of new clean coal utilization technologies into the energy marketplace. Clean coal technologies being demonstrated under the CCT Program are establishing a technology base that will enable the nation to meet more stringent energy and environmental goals. Most of the, demonstrations are being conducted at commercial scale, in actual user environments, and under circumstances typical of commercial operations. These features allow the potential of the technologies to be evaluated in their intended commercial applications. Each application addresses one of the following four market sectors: advanced electric power generation; environmental control devices; coal processing for clean fuels; and industrial applications. The purpose of this report is fourfold: Explain the CCT program as a model for successful joint government industry partnership for selecting and demonstrating technologies that have promise for adaptation to the energy marketplace; set forth the process by which the process has been implemented and the changes that have been made to improve that process; outline efforts employed to inform potential users and other interested parties about the technologies being developed; and examine some of the questions which must be considered in determining if the CCT Program model can be applied to other programs.

  2. Energy and technology lessons since Rio

    International Nuclear Information System (INIS)

    The 1992 Framework Convention on Climate Change created the basic international architecture for addressing climate change. That treaty was negotiated at a time when the research literature examining emissions mitigation and the role of energy technology was relatively limited. In the two subsequent decades a great deal has been learned. The problem of stabilizing the concentration of greenhouse gases in the atmosphere has proved far more difficult than envisioned in 1992 and the role of technology appears even more important when emissions mitigation strategies are co-developed in the context of multiple competing ends.

  3. Lessons Learned as a Serial Technology Entrepreneur

    Science.gov (United States)

    Economou, Nicholas

    2009-03-01

    Starting a new technology company can be an exciting experience, and can, on occasion, be financially lucrative as well. Aside from the obvious requirement to have some new technology to offer, the main impediment to making the leap is usually fear of unknown. This arises from several real issues: a) you don't know how to do it; b) you assume the new situation will be less secure; c) you have to give up progress along your current career path; d) you fear failure itself, and how it will reflect on you as a person. There is no easy way to resolve these concerns, and although talking with others who have done it is helpful, the final decision is always difficult and very personal. Assuming you decide to go forward, there are some simple rules that will help along the way: 1. Have a PRODUCT idea, not just an innovative technology: it's a business, not a way to continue interesting research. 2. Team up with experienced people in certain (not all) key jobs. The specifics depend on what your own skills are. 3. Make sure you have adequate funding at the outset to achieve some significant milestones. 4. Be selective about who funds you; they will be your business partners and will have a lot to say about what happens. 5. Start thinking about the liquidity/exit strategy from day one. The stories of how other companies were started and developed are good background information. Several of these from my own experiences will be discussed. They include a company that struggled for many years but ultimately went public and was successful, one that was quickly a success and was acquired, one that was an outright failure and two that continue on but with dubious prospects of success. Some thoughts on what went right or wrong, and what could have been done better will be presented.

  4. Tracking technology: lessons learned in two health care sites.

    Science.gov (United States)

    Bowen, Mary Elizabeth; Wingrave, Chadwick A; Klanchar, Angel; Craighead, Jeff

    2013-01-01

    The aim of this study is to describe the process of staff and patient adoption and compliance of a real-time locating system (RTLS) across two health care settings and present lessons learned. While previous work has examined the technological feasibility of tracking staff and patients in a health care setting in real-time, these studies have not described the critical adoption issues that must be overcome for deployment. The ability to track and monitor individual staff and patients presents new opportunities for improving workflow, patient health and reducing health care costs. A RTLS is introduced in both a long-term care and a polytrauma transitional rehabilitation program (PTRP) in a Veterans Hospital to track staff and patient locations and five lessons learned are presented from our experiences and responses to emergent technological, work-related and social barriers to adoption. We conclude that successful tracking in a health care environment requires time and careful consideration of existing work, policies and stakeholder needs which directly impact the efficacy of the technology. PMID:23792793

  5. Lessons Learned In Technology Development for Supplemental Treatment of Low-Activity Waste at Hanford

    International Nuclear Information System (INIS)

    Hanford needs supplemental technology treatment of low-activity waste (LAW) in addition to the Waste Treatment Plant (WTP). The Washington State Department of Ecology requires that supplemental technology provide the same protection to human health and the environment as WTP LAW glass. In 2002, the U.S. Department of Energy (US DOE) evaluated supplemental treatment technologies for LAW treatment and looked more closely at three: bulk vitrification (BV), steam reforming, and tailored cementitious stabilization. US DOE with Ecology's support chose to design and test BV because it believed BV would offer rapid deployment, low cost, and waste stream versatility. This paper will describe the path taken in choosing and developing technologies for additional LAW treatment capacity and, more importantly, the lessons learned along the way. In conclusion: Contractors' off-the-shelf vitrification technology that worked elsewhere may not apply easily to Hanford's waste challenges. The BV development process could have been improved by first identifying and then focusing on primary areas of concern. Continuing integrated tests at the Horn Rapids facility offers a convenient option to test both the dryer and the SMF. But the plan for development of the SMF must be short term with well defined success criteria. US DOE has the responsibility to carefully evaluate each proposal and make critical decisions that will make optimum use of limited funds. The ERP provided valuable technical guidance on improving BV's design. This must be complemented by a similar study of cost effectiveness of a process. We must have a better understanding of life cycle costs before a path for supplemental treatment is chosen. US DOE has now gained five years of experience in developing BV. It is time for US DOE to make defensible economic evaluations before further funding towards developing supplemental treatment. It must reevaluate if the projected advantages of rapid deployment, low cost, and waste

  6. Environmental Assessment For Cleanup and Closure of the Energy Technology Engineering Center. Final Report

    Energy Technology Data Exchange (ETDEWEB)

    None, None

    2003-03-01

    DOE analyzed two cleanup and closure alternatives and the No Action Alternative, in accordance with the Council on Environmental Quality regulations implementing NEPA (40 CFR Parts 1500-1508) and DOE's NEPA implementing regulations (10 CFR Part 1021). Under Alternative 1, DOE is proposing to clean up the remaining ETEC facilities using the existing site specific cleanup standard of 15 mrem/yr. (plus DOE's As Low As Reasonably Achievable--ALARA-principle) for decontamination of radiological facilities and surrounding soils (Alternative 1). An annual 15-millirem additional radiation dose to the maximally exposed individual (assumed to be an individual living in a residential setting on Area IV) from all exposure pathways (air, soil, groundwater) equates to an additional theoretical lifetime cancer risk of no more than 3 x 10-4 (3 in 10,000). For perspective, it is estimated that the average individual in the United States receives a dose of about 300 millirem each year from natural sources of radiation. However, actual exposures generally will be much lower as a result of the application of the ''as low as reasonably achievable'' (ALARA) principle. Based on post-remediation verification sampling previous cleanups have generally resulted in a 2 x 10-6 level of residual risk. DOE would decontaminate, decommission, and demolish the remaining radiological facilities. DOE would also decommission and demolish the one remaining sodium facility and all of the remaining uncontaminated support buildings for which it is responsible. The ongoing RCRA corrective action program, including groundwater treatment (interim measures), would continue. Other environmental impacts would include 2.5 x 10-3 fatalities as a result of LLW shipments and 6.0 x 10-3 fatalities as a result of emission exhaust from all shipments. DOE would also decommission and demolish the remaining sodium facility and decommission and

  7. Nanotechnology, risk, and oversight: learning lessons from related emerging technologies.

    Science.gov (United States)

    Kuzma, Jennifer; Priest, Susanna

    2010-11-01

    Emerging technologies are defined by their novelty and thus are accompanied by significant uncertainty in determining appropriate ways to manage risks associated with them. Yet, there is a body of prior knowledge about risk management and oversight policy for other technologies that have already permeated society. Here, we describe two ways in which prospective oversight policy analysis for emerging technologies can draw upon these past experiences. One involves comparing specific products that have already been marketed to similar products of the emerging technology (cognate-product approach). The other treats the emerging technology as a body of products and methods and relates it to another technological field that has already emerged and penetrated markets (whole-technology approach). In this article, we describe our work using these approaches to inform risk and oversight policy for nanotechnology and its products. We draw parallels between biotechnology and nanotechnology as whole fields of development and also between genetically engineered organisms in the food supply and agricultural products of nanotechnology. Through these comparisons, we find that both approaches to historical learning have value and present lessons that could be applied to nanotechnology. PMID:20723152

  8. Cleanup of contaminated areas

    International Nuclear Information System (INIS)

    The paper deals with the problem of contaminated areas cleanup, in order to eliminate every possible damage for man safety and environment and to site recovery for some utilization, The first step of cleanup operation is site characterization, that is followed by a pianificazion activity for a better definition of staff qualification, technology to be used, protection and prevention instruments for the risks due to contaminants handling. The second section describes the different remedial technologies for contaminated sites. Remedial technologies may be divided into on-site/off-site and in-situ treatments, according to whether materials (waste, soil, water) are moved to another location or not, respectively. Finally, it is outlined that contaminated areas cleanup is a typical multidisciplinary activity because very different competences are required. (author)

  9. Building upon Historical Competencies: Next-generation Clean-up Technologies for World-Wide Application - 13368

    Energy Technology Data Exchange (ETDEWEB)

    Guevara, K.C. [DOE Savannah River Operations Office, Aiken, South Carolina 29808 (United States); Fellinger, A.P.; Aylward, R.S.; Griffin, J.C.; Hyatt, J.E.; Bush, S.R. [Savannah River National Laboratory, Aiken, South Carolina 29808 (United States)

    2013-07-01

    The Department of Energy's Savannah River Site has a 60-year history of successfully operating nuclear facilities and cleaning up the nuclear legacy of the Cold War era through the processing of radioactive and otherwise hazardous wastes, remediation of contaminated soil and groundwater, management of nuclear materials, and deactivation and decommissioning of excess facilities. SRS recently unveiled its Enterprise.SRS (E.SRS) strategic vision to identify and facilitate application of the historical competencies of the site to current and future national and global challenges. E.SRS initiatives such as the initiative to Develop and Demonstrate Next generation Clean-up Technologies seek timely and mutually beneficial engagements with entities around the country and the world. One such ongoing engagement is with government and industry in Japan in the recovery from the devastation of the Fukushima Daiichi Nuclear Power Station. (authors)

  10. Building upon Historical Competencies: Next-generation Clean-up Technologies for World-Wide Application - 13368

    International Nuclear Information System (INIS)

    The Department of Energy's Savannah River Site has a 60-year history of successfully operating nuclear facilities and cleaning up the nuclear legacy of the Cold War era through the processing of radioactive and otherwise hazardous wastes, remediation of contaminated soil and groundwater, management of nuclear materials, and deactivation and decommissioning of excess facilities. SRS recently unveiled its Enterprise.SRS (E.SRS) strategic vision to identify and facilitate application of the historical competencies of the site to current and future national and global challenges. E.SRS initiatives such as the initiative to Develop and Demonstrate Next generation Clean-up Technologies seek timely and mutually beneficial engagements with entities around the country and the world. One such ongoing engagement is with government and industry in Japan in the recovery from the devastation of the Fukushima Daiichi Nuclear Power Station. (authors)

  11. Ten-year cleanup of U.S. Department of Energy weapon sites: The changing roles for technology development in an era of privatization

    Energy Technology Data Exchange (ETDEWEB)

    Taylor, L.H. [Dept. of Energy, Washington, DC (United States)

    1996-12-31

    In its beginning, the U.S. Department of Energy (DOE) Office of Environmental Management (EM) viewed private industry as lacking adequate technology know-how to meet demands of hazardous and radioactive waste problems at the DOE`s laboratories and nuclear weapons production facilities. In November 1989, EM`s Office of Technology Development (recently renamed the Office of Science and Technology) embarked on a bold program of developing and demonstrating {open_quotes}innovative{close_quotes} waste cleanup technologies that would be safer, faster, more effective, and less expensive than the {open_quotes}baseline{close_quotes} commercial methods. This program has engaged DOE sites, national laboratories, and universities to produce preferred solutions to the problems of handling and treating DOE wastes. More recently, much of this work has shifted to joint efforts with private industry partners to accelerate the use of newly developed technologies and to enhance existing commercial methods. To date, the total funding allocation to the Office of Science and Technology program has been about $2.8 billion. If the technology applications` projects of the EM Offices of Environmental Restoration and Waste Management are included, the total funding is closer to $4 billion. Yet, the environmental industry generally has not been very receptive to EM`s innovative technology offerings. And, essentially the same can be said for DOE sites. According to the U.S. General Accounting Office in an August 1994 report, {open_quotes}Although DOE has spent a substantial amount to develop waste cleanup technologies, little new technology finds its way into the agency`s cleanup actions{close_quotes}. The DOE Baseline Environmental Management Report estimated cleanups of DOE`s Cold War legacy of wastes to require the considerable cost of $226 billion over a period of 75 years. 1 tab.

  12. The lessons learned

    International Nuclear Information System (INIS)

    What happened at TMI-2 and to the United States Nuclear Industry since the accident to that plant is recounted. Four main points are made: commercial use of nuclear power evolved so rapidly that neither industry nor society generally, was able to assimilate this dramatically new technology fast enough; accidents like TMI-2, and now, the much more damaging Chernobyl, are a part of the price paid; we must take every possible step so that the risks from nuclear power are reduced by learning from accidents and putting that knowledge into practice; the lessons learned and applied after TMI-2 have tended to be the readily achievable, shorter term ones. The most drastic changes will take more time. The organizational and institutional lessons are considered first, then the technical ones. The sequence and status of the TMI-2 cleanup is discussed. The design lessons are summarized. (author)

  13. Technology for the oil spills clean-up which provides preliminary accumulation of sorbents into the area of emergence and localization oil spills

    Directory of Open Access Journals (Sweden)

    M.L.Soroka

    2012-12-01

    Full Text Available Introduction: The implementation of measures for the prevention and spill of dangerous goods is an important aspect of sustainable development of railway transport. oil spills accident are the most dangerous. They are accompanied by significant pollution of all environmental objects. Studying and development of oil localization and clean-up technologies of such accidents is an important problem of environmental protection to modern conditions of railway transport development. The purpose: to improve the effectiveness of traditional methods of oil spill elimination and the development of new clean-up technologies adapted to the real conditions of the railway transport of Ukraine. Methods: To achieve the research purposes was used analysis of material flows, typical for places emergence and localization of the oil spill on the railways. Results: Analysis of standard technological scheme for the oil spills eliminations has shown that the most difficult task of effective clean-up surfaces is the timely delivery of oil sorbents and special equipment to the area spill containment. The general effectiveness of the elimination activities specifies the time from the beginning contact of dangerous goods with environmental objects to the absorption it into the structure of sorbent . Us was developed the technological scheme of oil spill elimination. This scheme provide a permanent and fast access to the sorbents into the oil spill localization area. It was proposed to device that allows you to transport the sorbent into sorption booms directly on the tank for transportation of petroleum products. Conclusions: Preventative accumulation of sorbents to the oil spill elimination into the localization area provides the organizational and operational simplicity of all stages of clean-up technology. Technical and economic assessment shows that the proposed technology is effective, technologically feasible and economically competitive.

  14. Project Morpheus: Lessons Learned in Lander Technology Development

    Science.gov (United States)

    Olansen, Jon B.; Munday, Stephen R.; Mitchell, Jennifer D.

    2013-01-01

    NASA's Morpheus Project has developed and tested a prototype planetary lander capable of vertical takeoff and landing, that is designed to serve as a testbed for advanced spacecraft technologies. The lander vehicle, propelled by a LOX/Methane engine and sized to carry a 500kg payload to the lunar surface, provides a platform for bringing technologies from the laboratory into an integrated flight system at relatively low cost. Designed, developed, manufactured and operated in-house by engineers at Johnson Space Center, the initial flight test campaign began on-site at JSC less than one year after project start. After two years of testing, including two major upgrade periods, and recovery from a test crash that caused the loss of a vehicle, flight testing will evolve to executing autonomous flights simulating a 500m lunar approach trajectory, hazard avoidance maneuvers, and precision landing, incorporating the Autonomous Landing and Hazard Avoidance (ALHAT) sensor suite. These free-flights are conducted at a simulated planetary landscape built at Kennedy Space Center's Shuttle Landing Facility. The Morpheus Project represents a departure from recent NASA programs and projects that traditionally require longer development lifecycles and testing at remote, dedicated testing facilities. This paper expands on the project perspective that technologies offer promise, but capabilities offer solutions. It documents the integrated testing campaign, the infrastructure and testing facilities, and the technologies being evaluated in this testbed. The paper also describes the fast pace of the project, rapid prototyping, frequent testing, and lessons learned during this departure from the traditional engineering development process at NASA's Johnson Space Center.

  15. THE EFFECT OF VISITS IN TECHNOLOGY AND DESIGN LESSON TOWARDS STUDENTS’ ATTITUDES (THE SAMPLE OF TOKAT)

    OpenAIRE

    UÇAR, ALİ; ERDEN, Orhan

    2013-01-01

    This study, aiming to analyze result, by being investigated attitude changes towards lesson of students who study Technology and Design lesson as a result of collaboration between schools and Industry at secondary schools in the centre of Tokat Province is an experimental study in which qualitative research methods has been used. In the light of Science Technology and Design Project has been implemented by Tokat Provincial Directorate of National Education in order to establish industrial co-...

  16. A Proposal to Manage Lessons Learned in Projects: Web 2.0 Technologies to Promote Innovation

    Directory of Open Access Journals (Sweden)

    Marcirio Silveira Chaves

    2014-06-01

    Full Text Available The web 2.0 is transforming the project management in organizations by improving communication and collaboration. The new generation of web-based collaborative tools provides much better experience than the traditional software package allowing document sharing, integrated task tracking, enforcing team processes and agile planning. Despite of the indubitable benefits brought by web 2.0, the use of these technologies to promote knowledge management remains unexplored. For many project managers to obtain and integrate information from different tools of previous similar projects in global organizations remains a challenge. This theoretical paper presents a proposal that suggests an innovation in the knowledge management area applying web 2.0 technologies. The main goal is to provide an integrated vision of a set of technologies that could be used by organizations in order to promote better management of lessons learned. The proposal includes the lessons learned processes (e.g. capture, share and dissemination, the process-based (e.g. project review and after action review and documentation-based (e.g. micro article and learning histories methods. Results show how web 2.0 technologies can help project managers and team project to cope with the main lessons learned processes and methods to learn from experience. Moreover, recommendations are made for the effective use of web 2.0 components promoting innovation and supporting lessons learned management in projects.Keywords: Project management; Lessons learned processes; lessons learned methods; project learning; web 2.0 technologies; innovation.

  17. Integrated Warm Gas Multicontaminant Cleanup Technologies for Coal-Derived Syngas

    Energy Technology Data Exchange (ETDEWEB)

    Turk, Brian; Gupta, Raghubir; Sharma, Pradeepkumar; Albritton, Johnny; Jamal, Aqil

    2010-09-30

    One of the key obstacles for the introduction of commercial gasification technology for the production of power with Integrated Gasification Combined Cycle (IGCC) plants or the production of value added chemicals, transportation fuels, and hydrogen has been the cost of these systems. This situation is particularly challenging because the United States has ample coal resources available as raw materials and effective use of these raw materials could help us meet our energy and transportation fuel needs while significantly reducing our need to import oil. One component of the cost of these systems that faces strong challenges for continuous improvement is removing the undesirable components present in the syngas. The need to limit the increase in cost of electricity to < 35% for new coal-based power plants which include CO{sub 2} capture and sequestration addresses both the growing social concern for global climate change resulting from the emission of greenhouse gas and in particular CO{sub 2} and the need to control cost increases to power production necessary to meet this social objective. Similar improvements to technologies for trace contaminants are getting similar pressure to reduce environmental emissions and reduce production costs for the syngas to enable production of chemicals from coal that is cost competitive with oil and natural gas. RTI, with DOE/NETL support, has been developing sorbent technologies that enable capture of trace contaminants and CO{sub 2} at temperatures above 400 °F that achieve better capture performance, lower costs and higher thermal efficiency. This report describes the specific work of sorbent development for mercury (Hg), arsenic (As), selenium (Se), cadmium (Cd), and phosphorous (P) and CO{sub 2} removal. Because the typical concentrations of Hg, As, Se, Cd, and P are less than 10 ppmv, the focus has been on single-use sorbents with sufficient capacity to ensure replacement costs are cost effective. The research in this

  18. Advanced separation technology for flue gas cleanup. Final report, February 1998

    Energy Technology Data Exchange (ETDEWEB)

    Bhown, A.S.; Alvarado, D.; Pakala, N.; Tagg, T.; Riggs, T.; Ventura, S.; Sirkar, K.K.; Majumdar, S.; Bhaumick, D.

    1998-06-01

    The objective of this work by SRI International was to develop a novel system for regenerable SO{sub 2} and NO{sub x} scrubbing of flue gas that focuses on (1) a novel method for regenerating spent SO{sub 2} scrubbing liquor and (2) novel chemistry for reversible absorption of NO{sub x}. High efficiency, hollow fiber contactors (HFCs) were proposed as the devices for scrubbing the SO{sub 2} and NO{sub x} from the flue gas. The system would be designed to remove more than 95% of the SO{sub 2} and more than 75% of the NO{sub x} from flue gases typical of pulverized coal-fired power plants at a cost that is at least 20% less than combined wet limestone scrubbing of SO{sub x} and selective catalytic reduction of NO{sub x}. In addition, the process would generate only marketable by-products, if any (no waste streams are anticipated). The major cost item in existing technology is capital investment. Therefore, the approach was to reduce the capital cost by using high-efficiency, hollow fiber devices for absorbing and desorbing the SO{sub 2} and NO{sub x}. The authors also introduced new process chemistry to minimize traditionally well-known problems with SO{sub 2} and NO{sub x} absorption and desorption. The process and progress in its development are described.

  19. 'Mini'-Roadmapping - Ensuring Timely Sites' Cleanup/Closure by Resolving Science and Technology Issues

    International Nuclear Information System (INIS)

    Roadmapping is a powerful tool to manage technical risks and opportunities associated with complex problems. Roadmapping identifies technical capabilities required for both project- and program-level efforts and provides the basis for plans that ensure the necessary enabling activities will be done when needed. Roadmapping reveals where to focus further development of the path forward by evaluating uncertainties for levels of complexity, impacts, and/or the potential for large payback. Roadmaps can be customized to the application, a ''graded approach'' if you will. Some roadmaps are less detailed. We have called these less detailed, top-level roadmaps ''mini-roadmaps''. These mini roadmaps are created to tie the needed enablers (e.g., technologies, decisions, etc.) to the functions. If it is found during the mini-roadmapping that areas of significant risk exist, then those can be roadmapped further to a lower level of detail. Otherwise, the mini-roadmap may be sufficient to manage the project/program risk. Applying a graded approach to the roadmapping can help keep the costs down. Experience has indicated that it is best to do mini-roadmapping first and then evaluate the risky areas to determine whether to further evaluate those areas. Roadmapping can be especially useful for programs/projects that have participants from multiple sites, programs, or other entities which are involved. Increased synergy, better communications, and increased cooperation are the results from roadmapping a program/project with these conditions

  20. 'Mini'-Roadmapping - Ensuring Timely Sites' Cleanup/Closure by Resolving Science and Technology Issues

    International Nuclear Information System (INIS)

    Roadmapping is a powerful tool to manage technical risks and opportunities associated with complex problems. Roadmapping identifies technical capabilities required for both project- and program-level efforts and provides the basis for plans that ensure the necessary enabling activities will be done when needed. Roadmapping reveals where to focus further development of the path forward by evaluating uncertainties for levels of complexity, impacts, and/or the potential for large payback. Roadmaps can be customized to the application, a ''graded approach'' if you will. Some roadmaps are less detailed. We have called these less detailed, top-level roadmaps ''mini-roadmaps''. These miniroadmaps are created to tie the needed enablers (e.g., technologies, decisions, etc.) to the functions. If it is found during the mini-roadmapping that areas of significant risk exist, then those can be road mapped further to a lower level of detail. Otherwise, the mini-roadmap may be sufficient to manage the project/program risk. Applying a graded approach to the roadmapping can help keep the costs down. Experience has indicated that it is best to do mini-roadmapping first and then evaluate the risky areas to determine whether to further evaluate those areas. Roadmapping can be especially useful for programs/projects that have participants from multiple sites, programs, or other entities which are involved. Increased synergy, better communications, and increased cooperation are the results from roadmapping a program/project with these conditions. And, as with any trip, the earlier you use a roadmap, the more confidence you will have that you will arrive at your destination with few, if any, problems. The longer the trip or complicated the route, the sooner the map is needed. This analogy holds true for using roadmapping for laying out program/project baselines and any alternative (contingency) plans. The mini-roadmapping process has been applied to past projects like the hydrogen gas

  1. THE ROLE OF LIQUID WASTE PRETREATMENT TECHNOLOGIES IN SOLVING THE DOE CLEAN-UP MISSION

    Energy Technology Data Exchange (ETDEWEB)

    Wilmarth, B; Sheryl Bush, S

    2008-10-31

    The objective of this report is to describe the pretreatment solutions that allow treatment to be tailored to specific wastes, processing ahead of the completion schedules for the main treatment facilities, and reduction of technical risks associated with future processing schedules. Wastes stored at Hanford and Savannah River offer challenging scientific and engineering tasks. At both sites, space limitations confound the ability to effectively retrieve and treat the wastes. Additionally, the radiation dose to the worker operating and maintaining the radiochemical plants has a large role in establishing the desired radioactivity removal. However, the regulatory requirements to treat supernatant and saltcake tank wastes differ at the two sites. Hanford must treat and remove radioactivity from the tanks based on the TriParty Agreement and Waste Incidental to Reprocessing (WIR) documentation. These authorizing documents do not specify treatment technologies; rather, they specify endstate conditions. Dissimilarly, Waste Determinations prepared at SRS in accordance with Section 3116 of the 2005 National Defense Authorization Act along with state operating permits establish the methodology and amounts of radioactivity that must be removed and may be disposed of in South Carolina. After removal of entrained solids and site-specific radionuclides, supernatant and saltcake wastes are considered to be low activity waste (LAW) and are immobilized in glass and disposed of at the Hanford Site Integrated Disposal Facility (IDF) or formulated into a grout for disposal at the Savannah River Site Saltstone Disposal Facility. Wastes stored at the Hanford Site or SRS comprise saltcake, supernate, and sludges. The supernatant and saltcake waste fractions contain primarily sodium salts, metals (e.g., Al, Cr), cesium-137 (Cs-137), technetium-99 (Tc-99) and entrained solids containing radionuclides such as strontium-90 (Sr-90) and transuranic elements. The sludges contain many of the

  2. Stimulating R and D of industrial energy-efficient technology. Policy lessons--impulse technology

    International Nuclear Information System (INIS)

    Stimulating research and development (R and D) of innovative energy-efficient technologies for industry is an attractive option for reducing greenhouse gas emissions. Impulse technology, an innovative papermaking technology, is always included in studies assessing the long-term potential of industrial energy efficiency. Aim of this article is to analyse the R and D trajectory of impulse technology in order to explore how government can stimulate the development of industrial energy-efficient technology. The concept of 'momentum' is used to characterise the network of actors and to understand the effect of government R and D support in this particular case study. The network analysis convincingly shows that although marketed as an energy-efficient technology, other benefits were in fact driving forces. Researchers at various national pulp and paper research institutes were successful in attracting government R and D support by claiming an improved energy efficiency. The momentum of the technology network was modest between 1980 and 1990. Therefore, government R and D support accelerated the development of impulse technology in this period. However, when the perspectives of the technology deteriorated--momentum decreased--researchers at national research institutes continued to attract government R and D support successfully. But 25 years of R and D--and over 15 years government R and D support--have not yet resulted in a proven technology. The case study illustrates the risk of continuing R and D support too long without taking into account actors' drivers to invest in R and D. Once momentum decreased, government should have been more circumspect in evaluating the (energy efficiency) promise of impulse technology. The major policy lesson is that government has to look beyond claimed energy efficiencies; government has to value (qualitative) information on (changing) technology networks in deciding upon starting, continuing or pulling out financial R and D support to

  3. Engineering Lessons Learned and Technical Standards Integration: Capturing Key Technologies for Future Space Missions

    Science.gov (United States)

    Mellen, Daniele P.; Garcia, Danny; Vaughan, William W.

    2003-01-01

    Capturing engineering lessons learned derived from past experiences and new technologies, then integrating them with technical standards, provides a viable process for enhancing engineering capabilities. The development of future space missions will require ready access, not only to the latest technical standards, but also to lessons learned derived from past experiences and new technologies. The integration of this information such that it is readily accessible by engineering and programmatic personnel is a key aspect of enabling technology. This paper addresses the development of a new and innovative Lessons Learned/Best Practices/Applications Notes--Standards Integration System, including experiences with its initial implementation as a pilot effort within the NASA Technical Standards Program. Included are metrics on the Program, feedbacks from users, future plans, and key issues that are being addressed to expand the System's utility. The objective is the enhancement of engineering capabilities on all aspects of systems development applicable to the success of future space missions.

  4. Equipment Design and Cost Estimation for Small Modular Biomass Systems, Synthesis Gas Cleanup, and Oxygen Separation Equipment; Task 9: Mixed Alcohols From Syngas -- State of Technology

    Energy Technology Data Exchange (ETDEWEB)

    Nexant Inc.

    2006-05-01

    This deliverable is for Task 9, Mixed Alcohols from Syngas: State of Technology, as part of National Renewable Energy Laboratory (NREL) Award ACO-5-44027, ''Equipment Design and Cost Estimation for Small Modular Biomass Systems, Synthesis Gas Cleanup and Oxygen Separation Equipment''. Task 9 supplements the work previously done by NREL in the mixed alcohols section of the 2003 technical report Preliminary Screening--Technical and Economic Assessment of Synthesis Gas to Fuels and Chemicals with Emphasis on the Potential for Biomass-Derived Syngas.

  5. Novel fracture technology proves marginal Viking prospect economic, part II: Well clean-up, flowback and testing

    Energy Technology Data Exchange (ETDEWEB)

    Haidar, S.; Rylance, M.; Tybero, G. [and others

    1996-12-31

    Having completed both fracture treatments as discussed in a companion paper, this paper continues on to describe the post fracture shut-in, clean-up and well testing operations that took place on the Viking Wx exploration well 49/17-12. These operations involved the removal of Resin Coated Proppant (RCP) from the wellbore, via Coiled Tubing (CT), through the use of a specially designed jetting nozzle. The RCP pack stability at a concentration of 3.0 lb/ft{sup 2} (as per planned design) had already been tested in a flowback cell. The use of a Surface Read-Out (SRO) gauge, combined with gas, water and proppant flow rates as well as the viscosity of fracturing fluids returns, enabled real time calculation of the drag forces, on the proppant pack, during clean-up. The flow rate, in the field, was controlled such that the calculated drag forces remained below those observed in the laboratory. Following the clean-up a flow and build-up test was conducted, to evaluate the fracture half length and fracture conductivity, from which a Pseudo-radial skin was calculated. The Non-Darcy effects in the fracture were also evaluated, and finally the short term and long term well deliverabilities were assessed.

  6. Hiccups within Technology Mediated Lessons: A Catalyst for Mathematics Teachers' Epistemological Development

    Science.gov (United States)

    Clark-Wilson, Alison; Noss, Richard

    2015-01-01

    The notion of the lesson "hiccup", defined as the perturbation experienced by a teacher during teaching that has been triggered by the use of mathematical technology, was first proposed in Clark-Wilson. Hiccups which are both unanticipated and unplanned, emerged from a study that sought to make sense of the process of secondary…

  7. Hiccups within technology mediated lessons: a catalyst for mathematics teachers’ epistemological development

    OpenAIRE

    Clark-Wilson, A.; Noss, R.

    2015-01-01

    © 2015 British Society for Research into Learning Mathematics. The notion of the lesson ‘hiccup’, defined as the perturbation experienced by a teacher during teaching that has been triggered by the use of mathematical technology, was first proposed in Clark-Wilson. Hiccups which are both unanticipated and unplanned, emerged from a study that sought to make sense of the process of secondary mathematics teachers’ situated learning as they began to use a particular new technological tool (TI-Nsp...

  8. Assessing pre-service science teachers' technological pedagogical content knowledge (TPACK) through observations and lesson plans

    Science.gov (United States)

    Canbazoglu Bilici, Sedef; Selcen Guzey, S.; Yamak, Havva

    2016-05-01

    Background: Technological pedagogical content knowledge (TPACK) is critical for effective teaching with technology. However, generally science teacher education programs do not help pre-service teachers develop TPACK. Purpose: The purpose of this study was to assess pre-service science teachers' TPACK over a semester-long Science Methods. Sample: Twenty-seven pre-service science teachers took the course toward the end of their four-year teacher education program. Design and method: The study employed the case study methodology. Lesson plans and microteaching observations were used as data collection tools. Technological Pedagogical Content Knowledge-based lesson plan assessment instrument (TPACK-LpAI) and Technological Pedagogical Content Knowledge Observation Protocol (TPACK-OP) were used to analyze data obtained from observations and lesson plans. Results: The results showed that the TPACK-focused Science Methods course had an impact on pre-service teachers' TPACK to varying degrees. Most importantly, the course helped teachers gain knowledge of effective usage of educational technology tools. Conclusion: Teacher education programs should provide opportunities to pre-service teachers to develop their TPACK so that they can effectively integrate technology into their teaching.

  9. E-learning tool for information technologies lessons

    OpenAIRE

    Vyzas, Vytautas

    2005-01-01

    IT and telecommunication technologies penetrate into our everyday lives intensively. This makes to change our lifestyles too. If a man does not want to stay behind, he has to learn actively and adapt to constantly emerging innovations. IT and telecommunication technologies as well come to secondary schools. They penetrate not just into everyday work, but both to educational and teachers’ develop-ment process. IT and telecommunication technologies allowed new pedagogical technologies to emerge...

  10. Implementing Technology and Gaming Lessons in a School Library

    Science.gov (United States)

    Mashriqi, Khalida

    2011-01-01

    School librarians play numerous roles throughout a day. They are information specialists who keep up with the constant changes in information and technology. It is important for them to keep students up-to-date and teach them to use technology properly. Gaming and technology are both important concepts for 21st-century school librarians to…

  11. Teachers' Use of Technology in Elementary Reading Lessons

    Science.gov (United States)

    McDermott, Peter; Gormley, Kathleen A.

    2016-01-01

    Proponents claim technology will transform classroom teaching and improve children's engagement and learning. Opponents argue that such benefits are oversold because little evidence exists that technology improves teaching and learning. We examined how elementary teachers in an urban school that was well resourced with technology used it when…

  12. Supporting Teachers Learning Through the Collaborative Design of Technology-Enhanced Science Lessons

    Science.gov (United States)

    Kafyulilo, Ayoub C.; Fisser, Petra; Voogt, Joke

    2015-12-01

    This study used the Interconnected Model of Professional Growth (Clarke & Hollingsworth in Teaching and Teacher Education, 18, 947-967, 2002) to unravel how science teachers' technology integration knowledge and skills developed in a professional development arrangement. The professional development arrangement used Technological Pedagogical Content Knowledge as a conceptual framework and included collaborative design of technology-enhanced science lessons, implementation of the lessons and reflection on outcomes. Support to facilitate the process was offered in the form of collaboration guidelines, online learning materials, exemplary lessons and the availability of an expert. Twenty teachers participated in the intervention. Pre- and post-intervention results showed improvements in teachers' perceived and demonstrated knowledge and skills in integrating technology in science teaching. Collaboration guidelines helped the teams to understand the design process, while exemplary materials provided a picture of the product they had to design. The availability of relevant online materials simplified the design process. The expert was important in providing technological and pedagogical support during design and implementation, and reflected with teachers on how to cope with problems met during implementation.

  13. World Record Earned Value Management System Certification for Cleanup of the East Tennessee Technology Park, Oak Ridge, Tennessee, USA - 13181

    International Nuclear Information System (INIS)

    On projects that require Earned Value Management (EVMS) Certification, it is critical to quickly prepare for and then successfully obtain certification. This is especially true for government contracts. Projects that do poorly during the review are subject to financial penalties to their company and they lose creditability with their customer creating problems with the project at the outset. At East Tennessee Technology Park (ETTP), we began preparing for Department of Energy (DOE) certification early during proposal development. Once the contract was awarded, while still in transition phase from the previous contractor to our new company, we immediately began reviewing the project controls systems that were in place on the project and determined if any replacements needed to be made immediately. The ETTP contract required the scheduling software to be upgraded to Primavera P6 and we determined that no other software changes would be done prior to certification. Next, preparation of the Project Controls System Description (PCSD) and associated procedures began using corporate standards as related to the project controls systems. During the transition phase, development was started on the Performance Measurement Baseline which is the resource loaded schedule used to measure our performance on the project and which is critical to good Earned Value Management of the project. Early on, and throughout the baseline review, there was positive feedback from the Department of Energy that the quality of the new baseline was good. Having this superior baseline also contributed to our success in EVMS certification. The combined companies of URS and CH2M Hill had recent experience with certifications at other Department of Energy sites and we were able to capitalize on that knowledge and experience. Generic PCSD and procedures consistent with our co-operations approach to Earned Value Management were available to us and were easily tailorable to the specifics of our contract

  14. A systematic assessment of the state of hazardous waste clean-up technologies. Quarterly technical progress report, April 1--June 30, 1993

    Energy Technology Data Exchange (ETDEWEB)

    Berg, M.T.; Reed, B.E.; Gabr, M.

    1993-07-01

    West Virginia University (WVU) and the US DOE Morgantown Energy Technology Center (METC) entered into a Cooperative Agreement on August 29, 1992 entitled ``Decontamination Systems Information and Research Programs.`` Stipulated within the Agreement is the requirement that WVU submit to METC a series of Technical Progress Report for Year 1 of the Agreement. This report reflects the progress and/or efforts performed on the following nine technical projects encompassed by the Year 1 Agreement for the period of April 1 through June 30, 1993: Systematic assessment of the state of hazardous waste clean-up technologies; site remediation technologies -- drain-enhanced soil flushing (DESF) for organic contaminants removal; site remediation technologies -- in situ bioremediation of organic contaminants; excavation systems for hazardous waste sites; chemical destruction of polychlorinated biphenyls; development of organic sensors -- monolayer and multilayer self-assembled films for chemical sensors; Winfield lock and dam remediation; Assessments of Technologies for hazardous waste site remediation -- non-treatment technologies and pilot scale test facility implementation; and remediation of hazardous sites with stream reforming.

  15. The use of learning technologies in cooperation during the organization of practical activities of students at the lessons of biology

    Directory of Open Access Journals (Sweden)

    Natalia Bobrova

    2014-06-01

    Full Text Available The author considers the technology of education in cooperation of teacher and student and its implications in the organization of practical activity of pupils at lessons of biology, in particular in teaching workshops.

  16. Communication technologies and education: lessons in the potential of innovation

    OpenAIRE

    Norman, Nigel

    2011-01-01

    This paper seeks to outline the implications for pupils and teachers of Modern Foreign Languages (MFL) of the use of communication and information technologies (C&IT). It is based on the experiences of one of the school/university partnerships involved in the BT Initial Teacher Training Communication Technologies Initiative, begun in the autumn term of 1996. By examining examples of projects undertaken with minimal training, it will establish some principles for further development in an ...

  17. Lessons Learned from the Miniature Sensor Technology Integration (MSTI) -3 Controlled Reentry

    OpenAIRE

    Rahman, Lesley; Diamond, Preston; Probert, Todd

    1998-01-01

    This paper is presented as an overview of the lessons learned from the controlled reentry of the Air Force Miniature Sensor Technology Integration program's third satellite (MSTI-3). Since the launch of Sputnik in 1957, the amount of space debris in orbit has progressively increased to potentially hazardous levels. In light of these facts, the National Space Policy directs the United States to minimize the creation of space debris. NASA has already adopted a policy to limit the generation of ...

  18. Project management lessons learned on SDIO's Delta Star and Single Stage Rocket Technology programs

    Science.gov (United States)

    Klevatt, Paul L.

    1992-01-01

    The topics are presented in viewgraph form and include the following: a Delta Star (Delta 183) Program Overview, lessons learned, and rapid prototyping and the Single Stage Rocket Technology (SSRT) Program. The basic objective of the Strategic Defense Initiative Programs are to quickly reduce key uncertainties to a manageable range of parameters and solutions, and to yield results applicable to focusing subsequent research dollars on high payoff areas.

  19. Information Technologies in Higher Education: Lessons Learned in Industrial Engineering

    Science.gov (United States)

    Delgado-Almonte, Milagros; Andreu, Hernando Bustos; Pedraja-Rejas, Liliana

    2010-01-01

    This article describes a teaching experience in which information and communication technologies were applied in five industrial engineering courses at the Universidad de Tarapaca in Chile. The paper compares the performance and course pass rates of the e-learning platform and portable pocket PC platform with those of the same courses teaching in…

  20. Integration of Informal Music Technologies in Secondary School Music Lessons

    Science.gov (United States)

    Stowell, Dan; Dixon, Simon

    2014-01-01

    Technologies such as YouTube, mobile phones and MP3 players are increasingly integrated into secondary school music in the UK. At the same time, the gap between formal and informal music learning is being bridged by the incorporation of students' preferred music into class activities. We conducted an ethnographic study in two secondary…

  1. LEADERSHIP LESSONS FROM MANAGING TECHNOLOGY-INTENSIVE TEAMS

    OpenAIRE

    Hans J. Thamhain

    2009-01-01

    An ongoing field study of 76 new product development teams in 27 companies identifies specific barriers and drivers to effective team performance. The paper provides insight into the affects of organizational environment and managerial leadership on project team performance in technology-oriented team environments. The results show that team leadership has significant impact on both the project team and its broader organizational environment ultimately affecting team and project performance. ...

  2. Technology utilization and energy efficiency: Lessons learned and future prospects

    International Nuclear Information System (INIS)

    The concept of energy efficiency within the context of economic and environmental policy making is quite complex. Relatively poor economic performance ratings can weaken the validity of some energy supply systems which tend to reduce energy inputs for specific volumes of output, but don't minimize total cost per unit product; and industry is often slow to adopt new technologies, even those proven to reduce total costs. In this paper, the problems connected with growth in energy requirements in relation to product are first examined within the context of world economic performance history. Three key elements are shown to explain the differences in energy intensity and consumption typology among various countries, i.e., availability of energy sources, prices and government policies. Reference is made to the the role of recent energy prices and policies in the United States whose industrialization has been directly connected with the vast availability of some energy sources. In delineating possible future energy scenarios, the paper cites the strong influence of long term capital investment on the timing of the introduction of energy efficient technologies into industrial process schemes. It illustrates the necessity for flexibility in new energy strategies which are to take advantage the opportunities offered by a wide range of alternative energy sources now being made available through technological innovation

  3. Fast, Affordable, Science and Technology Satellite (FASTSAT) Huntsville-01 (HSV-01) Spacecraft Lessons Learned Report

    Science.gov (United States)

    Smith, Timothy A.

    2012-01-01

    The Fast Affordable Science and Technology Satellite (FASTSAT) project is a path finding effort to produce reliable satellite busses for different applications at an unprecedented speed and low cost. The project is designed to be a generational project and the first satellite produced is the Huntsville -01 (HSV-01) spacecraft. The subject of this report is the lessons learned gained during the development, testing, and up to the delivery of the FASTSAT HSV -01 spacecraft. The purpose of this report is to capture the major findings that will greatly benefit the future FASTSAT satellites and perhaps other projects interested in pushing the boundaries for cost and schedule. The FASTSAT HSV -01 primary objectives, success criteria, and team partners are summarized to give a frame of reference to the lessons learned.

  4. Technology transfer and Lessons learned from international project

    International Nuclear Information System (INIS)

    After the TMI-2 accidents, there were no new plant construction works in US. However, to reduce the increasing CO2 release and get the clean energy for the next generation, the United States is on the verge of a nuclear renaissance. Japanese Manufacturing Company, Mitsubishi Heavy Industries (MHI) submitted an application for design certification (DC) to the Nuclear Regulatory Commission (NRC). Mitsubishi Nuclear Energy Systems (MNES) is a wholly owned subsidiary of MHI responsible for serving nuclear power plant and related component in US and is currently the prime contractor for US utility company (Luminant power, formerly TXU) to develop the construction and operating license. As the MNES senior project manager for this project I am supported by a team of engineering and project managers from many companies of US and Japan. We face the challenge of cultural differences, time differences, language differences and geographic separation. The purpose of my presentation will be to share with the conference attendees how we are learning from each other, transferring one country's new technology to another country and working together as a team to ensure a safe culture and high quality product. We have learned that the culture and language differences can be a real issue; there is a difference in project management approach between the US and Japan. Another significant factor is understood by all parties of the US latest regulatory requirements and QA requirements. By knowing and recognizing these differences we continue to look for ways to work together. I think the most important thing we have learned is the importance of respecting each other and the necessity of clear and timely communications. Sharing the experiences of this learning and how we are working together to transfer the Japanese technology to the US market will be the emphasize of my presentation. (authors)

  5. The application of mature dry storage technology and remote handling robotics to nuclear plant extension, clean-up and decommissioning

    International Nuclear Information System (INIS)

    This paper reviews a mature dry storage technology developed by GEC ALSTHOM Engineering Systems Limited (GAES) which offers a passive, economical and licensable method of providing irradiated fuel storage capacity at operational nuclear power stations. The evolution of the modular vault dry store (MVDS) technology has taken place over 25 years of operational experience, culminating in a product which meets all of the concerns of licensing authorities regarding safety and fuel integrity. The application of remote handling robotics to nuclear fuel and active component handling as a routine process rather than as an intervention technique is also reviewed. The growth of the application of this technology is governed by several factors which include: statutory requirements, safety assurance, risk reduction and economic pressures. The availability of a mature MVDS technology with an evolving process-capable robotics technology opens up opportunities for exploring proven UK products. (Author)

  6. Implementing Innovative Technologies Through Lesson Plans: What Kind of Support Do Teachers Prefer?

    Science.gov (United States)

    Janssen, Noortje; Lazonder, Ard W.

    2015-12-01

    Lesson plans are a potentially powerful means to facilitate teachers' use of technology in the classroom. This study investigated which supplementary information is preferred by teachers when integrating a new technology into the classroom. Forty-six high school biology teachers (23 pre-service and 23 in-service) received a technology-infused lesson plan and were asked to choose between two sets of support materials that differed with regard to the extensiveness and integration of pedagogical and content information. Based on the technological, pedagogical, and content knowledge (TPACK) framework, pre-service teachers ( n = 23) were expected to prefer the appendix containing extensive and separate information, whereas in-service teachers ( n = 23) were predicted to prefer the succinct and integrated version. Teachers' responses to a forced-choice question confirmed the latter expectation, but lent insufficient support to the former. Semi-structured interviews further showed that the justifications of in-service teachers were generally consistent with the TPACK framework. Most pre-service teachers, by contrast, were future-oriented and preferred support that would help increase their proficiency rather than consolidate their existing knowledge base.

  7. THE EFFECT OF USE OF WEBQUEST IN SCIENCE EDUCATION ON PERSISTENCY AND ATTITUDE LEVELS FOR SCIENCE AND TECHNOLOGY LESSON

    OpenAIRE

    DOĞRU, Mustafa; ŞEKER, Fatih

    2012-01-01

    Effect of webquest method on science teaching was examined in this study as being one of the most important reflections of technology to the education and it was shown that students structured the knowledge in the coordination and enjoying with this method. The purpose of this study was to examine the effect of webquest-assisted teaching method for unit “The Structure and Properties of Matter” in the Science and Techonolgy lessons on attitude towards science lesson and retention of knowledge....

  8. The Effect of Computer Use in Science and Technology Lesson on Success and Attitude Towards

    Directory of Open Access Journals (Sweden)

    Cem O. Guzeller

    2011-01-01

    Full Text Available Problem statement: Computer being indispensable in our daily lives came into use in all fields of education. Use of computer for education activities became mandatory. This research is an experimental research performed by use of computer in science and technology and is important in terms of serving science education. General purpose of this research is to reveal the effect of computer-assisted teaching practice for subject of heat and temperature in primary school grade 5, science and technology lesson on success attitudes. The answer of this question was sought: does computer-assisted teaching practice prepared for the subject of “heat-temperature” of primary school grade 5, science and technology have effect on success of students, attitudes towards science and technology and attitudes towards computer compared to traditional teaching? Approach: Pretest-Posttest Control Group Design was used. According to pre-test results applied in the beginning of research two equivalent classes were determined. While course was instructed by computer-assisted teaching in one class, course was instructed based on constructivist approach in the other class. 5th grade students who studied at a private primary school in the city centre of Antalya in spring term of 2009-2010 education years comprised the sampling of research. Three different assessment tools which were comprised of Heat and Temperature Subject Achievement Test, Science and Technology Lesson Attitude Scale and Computer Attitude Scale were used. Independent and matched t-test and definitional statistical methods were used to analyze the data. Results: Computer assisted teaching was observed to increase student success, it was noted that there was no change in students’ attitude towards science and technology lesson and towards computer. This result is the quality of supporting many studies. It has emphasized in many studies that computer-assisted teaching has negative

  9. Rural hospital information technology implementation for safety and quality improvement: lessons learned.

    Science.gov (United States)

    Tietze, Mari F; Williams, Josie; Galimbertti, Marisa

    2009-01-01

    This grant involved a hospital collaborative for excellence using information technology over 3-year period. The project activities focused on the improvement of patient care safety and quality in Southern rural and small community hospitals through the use of technology and education. The technology component of the design involved the implementation of a Web-based business analytic tool that allows hospitals to view data, create reports, and analyze their safety and quality data. Through a preimplementation and postimplementation comparative design, the focus of the implementation team was twofold: to recruit participant hospitals and to implement the technology at each of the 66 hospital sites. Rural hospitals were defined as acute care hospitals located in a county with a population of less than 100 000 or a state-administered Critical Access Hospital, making the total study population target 188 hospitals. Lessons learned during the information technology implementation of these hospitals are reflective of the unique culture, financial characteristics, organizational structure, and technology architecture of rural hospitals. Specific steps such as recruitment, information technology assessment, conference calls for project planning, data file extraction and transfer, technology training, use of e-mail, use of telephones, personnel management, and engaging information technology vendors were found to vary greatly among hospitals. PMID:19574745

  10. FRAC RITE's clean-up concept: Applies oil patch technology to save contaminated sites

    Energy Technology Data Exchange (ETDEWEB)

    Budd, G.

    2003-04-01

    The suitability of oil field technology for cleaning up contaminated sites is examined. According to Frac Rite Environmental Ltd. the answer is 'yes' as demonstrated by the proprietary tools, technology and programs that the company developed to remediate and clean up problem sites. The rationale for using oilfield technology is that getting contaminants to move up from where they are lodged in silt or clay soils involves the same principles as fracture stimulation to induce crude oil to the surface. The procedure to clean the site involves a series of processes that parallel standard fracture stimulation, namely drilling into the soil, fracturing, installing recovery wells and extracting contaminants from groundwater and bio-remediation. Frac Rite's clientele is split roughly 60 per cent downstream and 40 per cent upstream. The downstream end includes retail gas stations, fuel bulk plants, industrial solvent manufacturing locations, and storage facilities. Upstream sites remediated by Frac Rite include former gas processing plants, flare pits, battery sites, well sites and refineries. The biggest market for Frac Rite's technology and services is in the United States, where the Environmental Protection Agency, the Department of Energy and the U.S. military have huge hazardous material-contaminated sites within their jurisdictions. In contrast, in Canada most soil and water contamination is limited to one major source, hydrocarbons.

  11. Practical experiences of, and lessons learnt from, Internet technologies in higher education

    Directory of Open Access Journals (Sweden)

    Simon Polovina

    1999-01-01

    Full Text Available The paper addresses how the Internet as computer-mediated communication is affecting teaching and learning in higher education institutions, particularly as these institutions face increasing competition due to the emergence of Web-based collaboration and assessment technologies. London’s South Bank University (SBU, a typical modern-day higher education institution is thereby in the process of integrating Internet technologies into its conventional and distance learning programmes. From its practical experiences so far SBU has learnt a variety of valuable lessons. In particular the technical and social aspects that determine the choice and use of the most appropriate software tools were identified, as well as a new approach towards online (Internet / Web subject reference sources was outlined. From SBU’s anecdotal experiences, useful recommendations are made for the effective use of Internet technologies that applies to many higher educational institutions.

  12. 2003 U.S. Department of Energy Strategic Plan: Protecting National, Energy, and Economic Security with Advanced Science and Technology and Ensuring Environmental Cleanup

    Energy Technology Data Exchange (ETDEWEB)

    None,

    2003-09-30

    The Department of Energy contributes to the future of the Nation by ensuring energy security, maintaining the safety, security and reliability of the nuclear weapons stockpile, cleaning up the environment from the legacy of the Cold War, and developing innovations in science and technology. After 25 years in existence, the Department now operates 24 preeminent research laboratories and facilities and four power marketing administrations, and manages the environmental cleanup from 50 years of nuclear defense activities that impacted two million acres in communities across the country. The Department has an annual budget of about $23 billion and employs about 14,500 Federal and 100,000 contractor employees. The Department of Energy is principally a national security agency and all of its missions flow from this core mission to support national security. That is true not just today, but throughout the history of the agency. The origins of the Department can be traced to the Manhattan Project and the race to develop the atomic bomb during World War II. Following the war, Congress engaged in a vigorous and contentious debate over civilian versus military control of the atom. The Atomic Energy Act of 1946 settled the debate by creating the Atomic Energy Commission, which took over the Manhattan Project’s sprawling scientific and industrial complex.

  13. 25 Years Of Environmental Remediation In The General Separations Area Of The Savannah River Site: Lessons Learned About What Worked And What Did Not Work In Soil And Groundwater Cleanup

    International Nuclear Information System (INIS)

    environmental remediation projects tend to be managed under tri-party agreement (DOE, Environmental Protection Agency, and SCDHEC) through the Federal Facilities Agreement. During 25 years of environmental remediation SRS has stabilized and capped seepage basins, and consolidated and capped waste units and burial grounds in the GSA. Groundwater activities include: pump and treat systems in the groundwater, installation of deep subsurface barrier systems to manage groundwater flow, in situ chemical treatments in the groundwater, and captured contaminated groundwater discharges at the surface for management in a forest irrigation system. Over the last 25 years concentrations of contaminants in the aquifers beneath the GSA and in surface water streams in the GSA have dropped significantly. Closure of 65 waste sites and 4 RCRA facilities has been successfully accomplished. Wastes have been successfully isolated in place beneath a variety of caps and cover systems. Environmental clean-up has progressed to the stage where most of the work involves monitoring, optimization, and maintenance of existing remedial systems. Many lessons have been learned in the process. Geotextile covers outperform low permeability clay caps, especially with respect to the amount of repairs required to upkeep the drainage layers as the caps age. Passive, enhanced natural processes to address groundwater contamination are much more cost effective than pump and treat systems. SRS operated two very large pump and treat systems at the F and H Seepage Basins to attempt to limit the release of tritium to Fourmile Branch, a tributary of the Savannah River. The systems were designed to extract contaminated acidic groundwater, remove all contamination except tritium (not possible to remove the tritium from the water), and inject the tritiated groundwater up-gradient of the source area and the plume. The concept was to increase the travel time of the injected water for radioactive decay of the tritium. The two

  14. 25 Years Of Environmental Remediation In The General Separations Area Of The Savannah River Site: Lessons Learned About What Worked And What Did Not Work In Soil And Groundwater Cleanup

    Energy Technology Data Exchange (ETDEWEB)

    Blount, Gerald [Savannah River Nuclear Solutions (SRNS), Aiken, SC (United States); Thibault, Jeffrey [Savannah River Nuclear Solutions (SRNS), Aiken, SC (United States); Millings, Margaret [Savannah River Nuclear Solutions (SRNS), Aiken, SC (United States); Prater, Phil [Savannah River Site (SRS), Aiken, SC (United States)

    2015-03-16

    environmental remediation projects tend to be managed under tri-party agreement (DOE, Environmental Protection Agency, and SCDHEC) through the Federal Facilities Agreement. During 25 years of environmental remediation SRS has stabilized and capped seepage basins, and consolidated and capped waste units and burial grounds in the GSA. Groundwater activities include: pump and treat systems in the groundwater, installation of deep subsurface barrier systems to manage groundwater flow, in situ chemical treatments in the groundwater, and captured contaminated groundwater discharges at the surface for management in a forest irrigation system. Over the last 25 years concentrations of contaminants in the aquifers beneath the GSA and in surface water streams in the GSA have dropped significantly. Closure of 65 waste sites and 4 RCRA facilities has been successfully accomplished. Wastes have been successfully isolated in place beneath a variety of caps and cover systems. Environmental clean-up has progressed to the stage where most of the work involves monitoring, optimization, and maintenance of existing remedial systems. Many lessons have been learned in the process. Geotextile covers outperform low permeability clay caps, especially with respect to the amount of repairs required to upkeep the drainage layers as the caps age. Passive, enhanced natural processes to address groundwater contamination are much more cost effective than pump and treat systems. SRS operated two very large pump and treat systems at the F and H Seepage Basins to attempt to limit the release of tritium to Fourmile Branch, a tributary of the Savannah River. The systems were designed to extract contaminated acidic groundwater, remove all contamination except tritium (not possible to remove the tritium from the water), and inject the tritiated groundwater up-gradient of the source area and the plume. The concept was to increase the travel time of the injected water for radioactive decay of the tritium. The two

  15. A summary of the report on prospects for pyrolysis technologies in managing municipal, industrial, and Department of Energy cleanup wastes

    Energy Technology Data Exchange (ETDEWEB)

    Reaven, S.J.

    1994-08-01

    Pyrolysis converts portions of municipal solid wastes, hazardous wastes and special wastes such as tires, medical wastes and even old landfills into solid carbon and a liquid or gaseous hydrocarbon stream. In the past twenty years, advances in the engineering of pyrolysis systems and in sorting and feeding technologies for solid waste industries have ensured consistent feedstocks and system performance. Some vendors now offer complete pyrolysis systems with performance warranties. This report analyzes the potential applications of pyrolysis in the Long Island region and evaluates the four most promising pyrolytic systems for their readiness, applicability to regional waste management needs and conformity with DOE environmental restoration and waste management requirements. This summary characterizes the engineering performance, environmental effects, costs, product applications and markets for these pyrolysis systems.

  16. CONOCO DOLOMITE HOT GAS CLEANUP SYSTEM

    Science.gov (United States)

    This report analyzes a proposal that EPA sponsor a large-scale pilot plant to develop the Conoco (formerly Consol) Dolomite Hot Gas Clean-up system. The report includes a history of the prior development program, the technology involved comparisons with competitive technologies i...

  17. Lesson study in prospective mathematics teacher education: didactic and paradidactic technology in the post-lesson reflection

    DEFF Research Database (Denmark)

    Rasmussen, Klaus

    2016-01-01

    discussed during the meetings. The study investigates what happens when lesson study, a well-established Japanese ‘‘system’’ for professional teacher development, is transposed to another educational and cultural context, with the aim of enhancing prospective teacher learning during the practicum of a...

  18. HARVESTING EMSP RESEARCH RESULTS FOR WASTE CLEANUP

    International Nuclear Information System (INIS)

    The extent of environmental contamination created by the nuclear weapons legacy combined with expensive, ineffective waste cleanup strategies at many U.S. Department of Energy (DOE) sites prompted Congress to pass the FY96 Energy and Water Development Appropriations Act, which directed the DOE to: ''provide sufficient attention and resources to longer-term basic science research, which needs to be done to ultimately reduce cleanup costs'', ''develop a program that takes advantage of laboratory and university expertise, and'' ''seek new and innovative cleanup methods to replace current conventional approaches which are often costly and ineffective.'' In response, the DOE initiated the Environmental Management Science Program (EMSP)-a targeted, long-term research program intended to produce solutions to DOE's most pressing environmental problems. EMSP funds basic research to lower cleanup cost and reduce risk to workers, the public, and the environment; direct the nation's scientific infrastructure towards cleanup of contaminated waste sites; and bridge the gap between fundamental research and technology development activities. EMSP research projects are competitively awarded based on the project's scientific, merit coupled with relevance to addressing DOE site needs. This paper describes selected EMSP research projects with long, mid, and short-term deployment potential and discusses the impacts, focus, and results of the research. Results of EMSP research are intended to accelerate cleanup schedules, reduce cost or risk for current baselines, provide alternatives for contingency planning, or provide solutions to problems where no solutions exist

  19. Molten metal, Martin Marietta target DOE, DOD cleanup markets

    International Nuclear Information System (INIS)

    This article describes a joint venture between Martin Marietta Corp. and Molten Metal Technology, Inc. to sell MMT innovative waste processing technology to the Energy and Defense departments, environmental cleanup programs

  20. RDF technology development: from R and D to commercial scale - lessons learned

    International Nuclear Information System (INIS)

    Malaysia is still negotiating for the best strategies to manage her 17,000 ton/day MSW in the best manner - politically, economically and environmentally. A National Solid Waste Strategic Plan has been established since 2003, advocating and adopting the Integrated Solid Waste Management System (IWMS). Recently, MINT launched the Waste to Wealth (W2W) blue print to spearhead the idea at National level, of treating waste as resource, thus could be translated to a profitable venture. In this respect, MINT role is very much focused to technology development. However, choosing the right mix of the waste management hierarchy, and thus technology, is not simple. We believed that, a technology that embraced all aspect of waste hierarchy and meet the Best Available Technology Not Entailing Excessive Cost (BATNEEC) or Best Available Technology Suiting Socio Economic Standing (BATSSES) concept will give good promise, thus certainly answers the above cry. In the above pursuit, we developed a commercial and R and D strategies concurrently to arrive at the best compromise. The technology selected, based on RDF, was not a rocket science but innovatively developed to match the waste characteristics, local cultures and social habit, national industrial strength and business opportunities, commercial packaging and institutional support at all levels - politically, socially, commercially, technically and even among government officials. The success of the project lies also in the trusts developed between the government organization conducting R and D and the private sector as the main technology developer, which transcends beyond the normal project contract agreement-manifesting the success of smart partnership model. This paper will share some success, challenges and experience, and lessons learned, in developing the RDF technology from the R and D stage to a full 700 t/day commercial plant in Semenyih, Malaysia. Also highlighted is the impact of this project on the current thinking

  1. Lessons Learned from Secondary Schools Using Technology for School Improvement: It's Just Not That Simple!

    Science.gov (United States)

    Levin, Barbara B.; Schrum, Lynne

    2014-01-01

    The purpose of this article is to describe lessons learned from studying the leadership in eight award-winning secondary schools and districts that were recognized for successfully leveraging technology as part of their efforts for school improvement. Data were collected through observations, interviews, and document analysis in schools and…

  2. Using Systems Thinking to Leverage Technology for School Improvement: Lessons Learned from Award-Winning Secondary Schools/Districts

    Science.gov (United States)

    Levin, Barbara B.; Schrum, Lynne

    2013-01-01

    This paper offers lessons learned about what it takes to successfully leverage technology for school improvement based on a cross-case analysis of eight award-winning secondary schools/districts around the United States. The researchers analyzed data from 150 interviews, 30 focus groups, and more than 300 hours of observation in 150 classrooms,…

  3. The NASA "Why?" Files: The Case of the "Wright" Invention. A Lesson Guide with Activities in Mathematics, Science, and Technology.

    Science.gov (United States)

    National Aeronautics and Space Administration, Hampton, VA. Langley Research Center.

    This lesson guide for instruction of students in grades 3-5 contains activities in mathematics, science, and technology. The NASA "Why?" Files is a series of instructional programs consisting of broadcast, print, and online elements. Emphasizing standards-based instruction, Problem-Based Learning, and science as inquiry, the series seeks to…

  4. Lesson study in prospective mathematics teacher education: didactic and paradidactic technology in the post-lesson reflection

    DEFF Research Database (Denmark)

    Rasmussen, Klaus

    2015-01-01

    study format. Nevertheless, it is demonstrated how their interaction shape the development of discourse about mathematical learning. The anthropological theory of the didactic is employed as the theoretical approach to analyse the mathematical and primarily didactical praxeologies developed and...... discussed during the meetings. The study investigates what happens when lesson study, a well-established Japanese ‘‘system’’ for professional teacher development, is transposed to another educational and cultural context, with the aim of enhancing prospective teacher learning during the practicum of a...... concern to the whole profession of mathematics teachers and the analysis adds to our insight into the potential of lesson study in prospective education as a meeting place where pertinent actors contribute to the expansion and dissemination of shared professional knowledge...

  5. GETTING TECHNOLOGY AND THE TECHNOLOGY ENVIRONMENT RIGHT: LESSONS FROM MAIZE DEVELOPMENT IN SOUTHERN AFRICA

    OpenAIRE

    Howard, Julie A; Rubey, Lawrence; Crawford, Eric W.

    2000-01-01

    This paper examines two questions: (1) what were the most important factors that led to differential rates of adoption of maize technology by farmers in Zimbabwe, Zambia, and Malawi from 1910 to 1995? and (2) what do these experiences suggest about strategic investments in institutions and organizations needed to create a sustainable environment for technology development and adoption in the future? The analysis suggests that productivity increases are facilitated by (a) technology innovation...

  6. Heritage and Advanced Technology Systems Engineering Lessons Learned from NASA Deep Space Missions

    Science.gov (United States)

    Barley, Bryan; Newhouse, Marilyn; Clardy, Dennon

    2010-01-01

    applications. The paper summarizes the study's lessons learned in more detail and offers suggestions for improving the project's ability to identify and manage the technology and heritage risks inherent in the design solution.

  7. Search for technological advantages and commercial success in sensor applications: lessons of industrial trials for fiber multianalyzer technology

    Science.gov (United States)

    McMillan, Norman D.; Baker, M.; O'Neill, M.; Smith, Stuart; Augousti, Andreas T.; Mason, Julian; Ryan, Bernard; Ryan, R. A.

    1999-01-01

    The multianalyzer is a powerful amplitude modulated fiber optic sensor which is perhaps quite typical of so many sensor innovations in that it is a technology looking for an application. Consequently, a series of collaborations with fruit juice, brewing, distilling, biotechnology and polymer industries were made with the objective of identifying potential applications of the multianalyzer. An assessment of these interactions is made for each of the industrial fields explored, by giving for each, just one positive result from the work. The results are then critically assessed. While these studies have illustrated the universal nature of the technology, in every case, lessons have been drawn of a general nature. This experience in particular underlined the difficulty in acceptance of a fiber based technology in industrial process monitoring, against the backdrop of the conservative practice of industry with long established instrumentation. The hard won experience of this product development has shown the vital important of technologists understanding the difference between the marketing concepts of features, benefits and advantages. Three categories of conclusions are drawn, the technical, the commercial, and finally, conclusions drawn from generalizations of the project by the Kingston partners based on their own independent experience in sensor development involving industrial and medical collaborations.

  8. Environmental compliance and cleanup

    International Nuclear Information System (INIS)

    This section of the 1994 Hanford Site Environmental Report summarizes the roles of the principal agencies, organizations, and public in environmental compliance and cleanup of the Hanford Site. Regulatory oversight, the Federal Facility Agreement and Consent Order, the role of Indian tribes, public participation, and CERCLA Natural Resource Damage Assessment Trustee Activities are all discussed

  9. Environmental compliance and cleanup

    Energy Technology Data Exchange (ETDEWEB)

    Black, D.G.

    1995-06-01

    This section of the 1994 Hanford Site Environmental Report summarizes the roles of the principal agencies, organizations, and public in environmental compliance and cleanup of the Hanford Site. Regulatory oversight, the Federal Facility Agreement and Consent Order, the role of Indian tribes, public participation, and CERCLA Natural Resource Damage Assessment Trustee Activities are all discussed.

  10. The story of the Tevatron accelerators: Accelerator science and technology breakthroughs, achievements and lessons

    International Nuclear Information System (INIS)

    For almost a quarter of a century, the Tevatron proton-antiproton collider was the centerpiece of the world's high energy physics program - since it began operation in December of 1985, until it was overtaken by LHC in 2011. The aim of this unique scientific instrument was to explore the elementary particle physics reactions with center of mass collision energies of up to 1.96 TeV. The initial design luminosity of the Tevatron was 1030 cm-2 s-1, however as a result of two decades of upgrades, the accelerator has been able to deliver 430 times higher luminosities to each of two high luminosity experiments, CDF and D0. The Tevatron has been shut off since September 30, 2011. The collider was arguably one of the most complex research instruments ever to reach the operation stage and is widely recognized for many technological breakthroughs and numerous physics discoveries. In this paper, we briefly present the history of the Tevatron, major advances in accelerator physics, technology implemented during the long quest for better and better performance, and the lessons learned from our experience.

  11. Science and Math Lesson Plans to Meet the Ohio Revised Science Standards and the Next Generation of Standards for Today; Technology (Excel)

    OpenAIRE

    Suzanne Lunsford; Basil Naah

    2015-01-01

    Pre-service teachers (K-12) developed and taught lesson plans that met the state and national science and technology standards by integrating Excel and PowerPoint into their lesson. A sample of 74 pre-service teachers in our science education program were required to integrate technology (Excel) as they developed science and math lesson plans with graphing as a requirement. These students took pre-test and post-test (n=74) to determine their understanding of Excel in relation to the need of c...

  12. US nuclear cleanup shows signs of progress

    International Nuclear Information System (INIS)

    The U.S. Department of Energy's program for dealing with the radioactive and hazardous wastes at its former nuclear weapons production sites and at the national laboratories has been criticized for its expense and slow pace of cleanup. The largest environmental restoration and waste management program in the world faces formidable technical and scientific problems and these, according to numerous investigative committees and commissions, have been compounded by poor management, misuse of technology, and failure to appreciate the need for new basic scientific knowledge to solve many of the cleanup problems. In the past three years, DOE's Office of Environmental Management (EM), often spurred by congressional action, has begun to trim costs and accomplish more. New measures have been introduced to improve contract efficiency, better utilize existing remediation technologies, renegotiate compliance agreements, and begin basic research. Environmental Management Assistant Undersecretary Alvin Alm, appointed in May 1996, is seeking to solidify these changes into an ambitious plan to clean up most of DOE's 130 sites by 2006. But there are widespread doubts that EM has the money, skill, and will to turn itself around. There are also concerns that, in the name of efficiency and economy, EM may be negotiating lower cleanup standards and postponing some difficult cleanup tasks. This article discusses these issues. 7 refs

  13. Experience in mining plutonium for soil cleanup

    International Nuclear Information System (INIS)

    Plutonium contamination from nuclear tests in 1962 is present at Johnston Atoll in soil throughout a 10-ha site. Since the middle 1980s, the Defense Nuclear Agency has been developing a mining operation to cleanup the contaminated soil. A plant now routinely mines plutonium from soil to make most of the soil clean and suitable for beneficial use. Before this initiative, the mining paradigm was to concentrate a valuable substance and leave waste tailings. Mining for cleanup represents a paradigm shift as it concentrates the radioactive substance for waste disposal and leaves the valuable substance, clean soil. The cleanup plant combines conventional mining and milling technology, radiation detection equipment, and microprocessor computer controls. A variety of technologies have been evaluated since the plant was first started in 1990. Success has come from soil sorters and classifiers. To May 1993, there were 37 weeks with some soil cleanup. The plant processed 17,000 tons of soil and made 98% clean. Production at 1,000 tons/week is routine. The plant concentrate will be further processed to reduce waste below 2%

  14. HARVESTING EMSP RESEARCH RESULTS FOR WASTE CLEANUP

    Energy Technology Data Exchange (ETDEWEB)

    Guillen, Donna Post; Nielson, R. Bruce; Phillips, Ann Marie; Lebow, Scott

    2003-02-27

    The extent of environmental contamination created by the nuclear weapons legacy combined with expensive, ineffective waste cleanup strategies at many U.S. Department of Energy (DOE) sites prompted Congress to pass the FY96 Energy and Water Development Appropriations Act, which directed the DOE to: ''provide sufficient attention and resources to longer-term basic science research, which needs to be done to ultimately reduce cleanup costs'', ''develop a program that takes advantage of laboratory and university expertise, and'' ''seek new and innovative cleanup methods to replace current conventional approaches which are often costly and ineffective.'' In response, the DOE initiated the Environmental Management Science Program (EMSP)-a targeted, long-term research program intended to produce solutions to DOE's most pressing environmental problems. EMSP funds basic research to lower cleanup cost and reduce risk to workers, the public, and the environment; direct the nation's scientific infrastructure towards cleanup of contaminated waste sites; and bridge the gap between fundamental research and technology development activities. EMSP research projects are competitively awarded based on the project's scientific, merit coupled with relevance to addressing DOE site needs. This paper describes selected EMSP research projects with long, mid, and short-term deployment potential and discusses the impacts, focus, and results of the research. Results of EMSP research are intended to accelerate cleanup schedules, reduce cost or risk for current baselines, provide alternatives for contingency planning, or provide solutions to problems where no solutions exist.

  15. Science and Math Lesson Plans to Meet the Ohio Revised Science Standards and the Next Generation of Standards for Today; Technology (Excel

    Directory of Open Access Journals (Sweden)

    Suzanne Lunsford

    2015-02-01

    Full Text Available Pre-service teachers (K-12 developed and taught lesson plans that met the state and national science and technology standards by integrating Excel and PowerPoint into their lesson. A sample of 74 pre-service teachers in our science education program were required to integrate technology (Excel as they developed science and math lesson plans with graphing as a requirement. These students took pre-test and post-test (n=74 to determine their understanding of Excel in relation to the need of current technology for todays' science classroom. The test results showed that students obtained content gains in Excel graphing in all the inquiry-based lab experiments. They also gained experience in developing math skills, inquiry-based science lesson plans, and communication and presentation skills.

  16. 压裂助排工艺优化设计研究%Optimization of Liquid Nitrogen and Carbon Dioxide Cleanup Technology

    Institute of Scientific and Technical Information of China (English)

    张波; 温庆志; 罗明良; 翟恒立; 于姣姣; 刘广忠

    2012-01-01

    如何提高返排率、减少压裂液对地层的伤害,实现人工裂缝高导流能力,已经成为油气藏增产改造技术面临的重要课题。通过分析氮气、CO2的物理化学特性,研究了液氮、CO2的助排机理,建立气体伴注排液模型,编制了气体伴注设计软件,对影响压裂井气体伴注效果的因素进行了研究,并对助排工艺参数进行了优化设计。结果表明,随着井深增加和压力梯度的降低,液氮伴注比和氮气伴注排量略有增大;井深每增加100m,液氮伴注比增加约0.3%;压力梯度每增加O.01MPa/m,液氮伴注比降低约0.6%。随着泵注排量的增加,液氮伴注比增大。井底压力的变化幅度与井口注入压力的变化幅度基本相同;井口注入压力每增加5MPa,井底压力也增加约5MPa。随注入流量的增加,井筒压力逐渐减小;注入流量每增加0.5m3/min,井底压力降低约1.75MPa。对胜利油田某井进行液氮助排参数优化设计,压裂液返排率达到90%,压裂井产量增加了2.7倍,表明所建立的数学模型准确可靠,可以用于指导油田现场施工。图7表3参9%The task of how to improve flow back ratio, decrease the formation damage caused by fracturing liquid, and achieve high flow conductivity of artificial fracture had already Become a vital question for the reservoir stimulation technology. Through the physical and chemical behavior analysis of nitrogen and carbon dioxide, their cleanup mechanism was researched, the flowing-hack model of accompanying gas was built, and the design software of accompanying gas was drawn up. Associating with oilfidd examples, the affecting elements of accompanying gas were researched, meanwhile the parameters of flowing back technology were optimized. The results showed that when the well depth and pump injection increased or start-up pressure gradient decreased, the companion ratio and the companion

  17. Department of Energy - Oak Ridge Operations and URS - CH2M Oak Ridge LLC. Partnering Framework for the Cleanup of the East Tennessee Technology Park, Oak Ridge, Tennessee, USA - 12348

    International Nuclear Information System (INIS)

    The cleanup and re-industrialization of the East Tennessee Technology Park (ETTP) hinges on a collaborative working relationship between the cleanup contractor and the U.S. Department of Energy's (DOE)-Oak Ridge Office (ORO). A Partnering Framework document was signed on June 30, 2011, with an ultimate goal of completing the contract scope of work ahead of schedule and under budget. This partnering process was the first time that DOE and its contractor, jointly developed and signed such an agreement before the contractor assumed management responsibilities of the Site. A strong desire of both parties to utilize a partnering approach in the performance of their respective responsibilities is evident. The Partnering Framework was modeled after a partnering process employed by the California Department of Transportation, Division of Construction. This partnering process has been used successfully by the California Department of Transportation and its major contractors for many years with great success. The partnering process used at ETTP was a phased approach. First, a Partnering Framework document was developed and signed June 30, 2011, by the Partnering Sponsors, the two leaders of the ETTP cleanup and re-industrialization project, the DOE-ORO Assistant Manager for Environmental Management and the contractor's President and Program Manager. In this way the partnering process could begin when the contactor assumed ETTP Site management responsibilities on August 1, 2011. The Partnering Framework then set the stage for the second phase of the partnering process which would be development of the Partnering Agreement and the kick-off of the first of a number of facilitated Partnering Workshops. Key elements of the Partnering Framework document include: (1) a statement of commitment which affirms the desire of both parties to work collaboratively toward the cleanup and re-industrialization of the ETTP Site; (2) a vision which describes both parties ultimate goal of safe

  18. Cleanup contract protest upheld

    International Nuclear Information System (INIS)

    Cleanup of the huge Hanford nuclear weapon site in Washington state, long mired in disputes over contract awards, faces another potential delay. On October 12 the US General Accounting Office upheld a protest to the award of the site's $800-million Environmental Restoration Management Contract (ERMC). GAO has ordered the US DOE to review the contract award to a team led by Bechtel Group Inc., a process observers say could be quick or a quagmire. GAO sustained part of a protest filed in early 1993 by Parsons Environmental Services Inc., Pasadena, California, which led an unsuccessful team bid for the ERMC

  19. Comparative Analyses of Drama Method in Science and Technology Course in Terms of Academic Achievement and Attitude Towards to Lesson Rural and Urban School Sample

    OpenAIRE

    Çam, Figen; ÖZKAN, Esra; AVİNÇ, İclal

    2009-01-01

    This study aims to explore the effect of drama method on teaching blood , blood habit and blood group subjects in primary science and technology lesson, in terms of academic achievement and attitude to lesson, by comparing rural and urban school. In the study which is done as quasi exerimental model, pre test-post test crossing group experimental research design was used and 60 sixth grade students were selected as sample of the study. During two weeks 4 lessons hours Blood , blood habit and...

  20. Large-Scale Urban Decontamination; Developments, Historical Examples and Lessons Learned

    Energy Technology Data Exchange (ETDEWEB)

    Rick Demmer

    2007-02-01

    cleanup responses, has a sound approach for decontamination decision-making that has been applied several times. The anthrax contamination at the U. S. Hart Senate Office Building and numerous U. S. Post Office facilities are examples of employing novel technical responses. Decontamination of the Hart Office building required development of a new approach for high level decontamination of biological contamination as well as techniques for evaluating the technology effectiveness. The World Trade Center destruction also demonstrated the need for, and successful implementation of, appropriate cleanup methodologies. There are a number of significant lessons that can be gained from a look at previous large scale cleanup projects. Too often we are quick to apply a costly “package and dispose” method when sound technological cleaning approaches are available. Understanding historical perspectives, advanced planning and constant technology improvement are essential to successful decontamination.

  1. Reactor coolant cleanup facility

    International Nuclear Information System (INIS)

    A depressurization device is disposed in pipelines upstream of recycling pumps of a reactor coolant cleanup facility to reduce a pressure between the pressurization device and the recycling pump at the downstream, thereby enabling high pressure coolant injection from other systems by way of the recycling pumps. Upon emergency, the recycling pumps of the coolant cleanup facility can be used in common to an emergency reactor core cooling facility and a reactor shutdown facility. Since existent pumps of the emergency reactor core cooling facility and the reactor shutdown facility which are usually in a stand-by state can be removed, operation confirmation test and maintenance for equipments in both of facilities can be saved, so that maintenance and reliability of the plant are improved and burdens on operators can also be mitigated. Moreover, low pressure design can be adopted for a non-regenerative heat exchanger and recycling coolant pumps, which enables to improve the reliability and economical property due to reduction of possibility of leakage. (N.H.)

  2. Alternatives for Ground Water Cleanup

    Science.gov (United States)

    Hudak, P. F.

    Aquifer remediation is one of our most difficult environmental challenges; technological limitations and problems arising from the physical and chemical complexities of contaminated subsurface environments thwart our best efforts. A 19-member committee of leaders in environmental engineering, hydrogeology, epidemiology, environmental economics, and environmental policy has written an ambitious book that broadly addresses the groundwater remediation problem. Topics include site characterization, capabilities and limitations of pump-and-treat and alternative technologies, alternative goals for ground water cleanup, and policy implications.One of the book's strengths is its information base, which includes various public and private groups, data from 80 pump-and-treat sites, and an extensive literature review. The text is clearly written and well organized. Specific conclusions are stated at the end of each major chapter, and sound policy recommendations are offered at the end of the final chapter. An appendix summarizes pump-andtreat systems reviewed during the study. Several case studies, diagrams, and photographs effectively illustrate concepts and ideas conveyed in the text.

  3. Demonstrating practical application of soil and groundwater clean-up and recovery technologies at natural gas processing facilities: Bioventing, air sparging and wetlands remediation

    International Nuclear Information System (INIS)

    This issue of the project newsletter described the nature of bioventing, air sparging and wetland remediation. It reviewed their effectiveness in remediating hydrocarbon contaminated soil above the groundwater surface. Bioventing was described as an effective, low cost treatment in which air is pumped below ground to stimulate indigenous bacteria. The bacteria then use the oxygen to consume the hydrocarbons, converting them to CO2 and water. Air sparging involves the injection of air below the groundwater surface. As the air rises, hydrocarbons are stripped from the contaminated soil and water. The advantage of air sparging is that it cleans contaminated soil and water from below the groundwater surface. Hydrocarbon contamination of wetlands was described as fairly common. Conventional remediation methods of excavation, trenching, and bellholes to remove contamination often cause extreme harm to the ecosystem. Recent experimental evidence suggests that wetlands may be capable of attenuating contaminated water through natural processes. Four hydrocarbon contaminated wetlands in Alberta are currently under study. Results to date show that peat's high organic content promotes sorption and biodegradation and that some crude oil spills can been resolved by natural processes. It was suggested that assuming peat is present, a good clean-up approach may be to contain the contaminant source, monitor the lateral and vertical extent of contamination, and wait for natural processes to resolve the problem. 3 figs

  4. Lessons Learned from the Photovoltaic Manufacturing Technology/PV Manufacturing R&D and Thin Film PV Partnership Projects

    Energy Technology Data Exchange (ETDEWEB)

    Margolis, R.; Mitchell, R.; Zweibel, K.

    2006-09-01

    As the U.S. Department of Energy's (DOE's) Solar Energy Technologies Program initiates new cost-shared solar energy R&D under the Solar America Initiative (SAI), it is useful to analyze the experience gained from cost-shared R&D projects that have been funded through the program to date. This report summarizes lessons learned from two DOE-sponsored photovoltaic (PV) projects: the Photovoltaic Manufacturing Technology/PV Manufacturing R&D (PVMaT/PVMR&D) project and the Thin-Film PV Partnership project. During the past 10-15 years, these two projects have invested roughly $330 million of government resources in cost-shared R&D and leveraged another $190 million in private-sector PV R&D investments. Following a description of key findings and brief descriptions of the PVMaT/PVMR&D and Thin-Film PV Partnership projects, this report presents lessons learned from the projects.

  5. CP-5 reactor remote dismantlement activities: Lessons learned in the integration of new technology in an operations environment

    International Nuclear Information System (INIS)

    This paper presents the developer's perspective on lessons learned from one example of the integration of new prototype technology into a traditional operations environment. The dual arm work module was developed by the Robotics Technology Development Program as a research and development activity to examine manipulator controller modes and deployment options. It was later reconfigured for the dismantlement of the Argonne National Laboratory Chicago Pile No. 5 reactor vessel as the crane-deployed dual arm work platform. Development staff worked along side operations staff during a significant part of the deployment to provide training, maintenance, and tooling support. Operations staff completed all actual remote dismantlement tasks. At the end of available development support funding, the Dual Arm Work Platform was turned over to the operations staff, who are still using it to complete their dismantlement tasks

  6. Bioventing reduces soil cleanup costs

    International Nuclear Information System (INIS)

    An offshoot technology from soil venting, bioventing offers a win-win solution for soils contaminated with volatile organic compounds (VOCs) and nonvolatile contaminants such as diesel and fuel oil. Using low air flowrates through permeable soils, bioventing injects sufficient oxygen to support naturally-occurring bacteria, which biodegraded the VOCs and other contaminants into benign byproducts. Waste gas can be directly discharged to atmosphere without further treatment. This results in no offgas treatment required. Bioventing is a cost-effective alternative to traditional soil-venting techniques. Soil venting uses air to volatilize organic-compound contamination from the vadose zone, the unsaturated soil layer above groundwater. Unfortunately, this simple-and-fast approach creates a waste offgas that requires further treatment before discharge, thus adding significantly to overall project costs. In contrast, bioventing uses low air flowrates, which require lower capital and operating costs. No offgas treatment further reduces equipment and operating costs and often eliminates air permitting. As in all treatment strategies, the process must meet the cleanup objectives. Bioventing is an alternative technique making inroads into refining and petrochemical soil-remediation applications

  7. Cleanup of demineralizer resins

    International Nuclear Information System (INIS)

    Radiocesium is being removed from demineralizers A and B (DA and DB) by a process that was developed from laboratory tests on small samples of resin from the demineralizers. The process was designed to elute the radiocesium from the demineralizer resins and then to resorb it onto the zeolite ion exchangers contained in the Submerged Demineralizer System (SDS). It was also required to limit the maximum cesium activities in the resin eluates (SDSD feeds) so that the radiation field surrounding the pipelines would not be excessive. The process consisted of 17 stages of batch elution. In the initial stage, the resin was contacted with 0.18 M boric acid. Subsequent stages subjected the resin to increasing concentrations of sodium in NaH2BO3-H3BO3 solution (total boron= 0.35 M) and then 1 M sodium hydroxide in the final stages. Results on the performance of the process in the cleanup of the demineralizers at TMI-2 are compared with those obtained from laboratory tests with small samples of the DA and DB resins. To date, 15 stages of batch elution have been completed on the demineralizers at TMI-2, which resulted in the removal of about 750 Ci of radiocesium from DA and about 3300 Ci from DB

  8. Graphite waste pit cleanup

    International Nuclear Information System (INIS)

    The UP1 plant in Marcoule reprocessed nearly 20,000 tons of used natural uranium gas cooled reactor fuel coming from the first generation of civil nuclear reactors in France. During more than 40 years, the decladding operations produced thousands of tons of processed waste, mainly magnesium and graphite fragments. In the absence of a French repository for the graphite waste, the graphite sludge content of the storage pit had to be retrieved and transferred into a newer and safer pit. So, this project consists in the full retrieval and transfer of 15 m3 of water mixed with graphite dust located in the decladding facility, as well as the complete cleanup and decontamination of the pit. The equipment and process necessary for retrieval operations were designed, built and tested. The process is mainly based on the use of two pumps (one to capture and the other one to transfer the sludge) working one after the other and a robotic arm mounted on a telescopic mast. A dedicated process was also set up for the removal of the biggest fragments. In the pit, the sludge retrieval and transfer operations have been almost completed. Most of the non-pumpable graphite fragments has been removed and transferred to a new storage pit. As irradiant fragments have been discovered in the pit, specific studies are in progress in order to remove them to the laboratory for dissolution. This work is expected to 2014. (authors)

  9. Cleanups in my Community Widget

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Cleanups in my Community widget returns facilities within the area of interest that are in the process of being cleaned up, or have been cleaned up, by programs...

  10. Incorporating climate change and technology into the science classroom: Lessons from my year as a GK-12 Fellow

    Science.gov (United States)

    Abramoff, R. Z.

    2012-12-01

    Climate change is not included in the K-8 science standards in Massachusetts; as a result, students learn what climate is, but not how human activities affect it. Starting in 2010, Boston University launched the GK-12 GLACIER program, funded with 2.9M from the National Science Foundation. The purpose of the program is to incorporate the fundamentals of climate change into the K-12 curriculum, focusing on grades 5-8 when quantitative science enters the curriculum. Graduate students are partnered with teachers in Boston public schools for 10 hours a week of teaching with additional curriculum development. I will focus on the curriculum that I developed as a part of this program for the 5th grade science class at The Curley School in Jamaica Plain, MA, where I worked with Grades 3-5, ESL, and PACE autism program science teacher, Stephanie Selznick. The Curley School is an ethnically and economically diverse Boston public school with about 800 students and an 83% minority population. At the Curley, I taught two full days a week, meeting with all of the 5th grade classes and some of the 4th grade classes of all academic levels. The lessons that I created were designed to fit into the state standards and enrich student understanding plant ecology and earth science, as well as develop their capacity to design experiments and use technology. These include Question of the Day, Digital Field Guide to the Outdoor Classroom, Phototropism, Solar System Weather Report, Soil and Water, Local Landforms, and the Earth as a Closed System Unit for which materials and lesson plans are available on my website. Our secondary goals were to improve tech literacy at Curley. Due to funding restrictions, there were few technology resources available to the students at the beginning of the 2011/2012 school year. To improve technology resources at Curley, I organized a fundraiser at Boston University, selling donated items from graduate students and faculty; the 1000 raised was used to supply

  11. Cleanup at Los Alamos National Laboratory - the challenges - 9493

    Energy Technology Data Exchange (ETDEWEB)

    Stiger, Susan G [Los Alamos National Laboratory; Hargis, Kenneth M [Los Alamos National Laboratory; Graham, Michael J [Los Alamos National Laboratory; Rael, George J [NNSL/LASO

    2008-01-01

    This paper provides an overview of environmental cleanup at the Los Alamos National Laboratory (LANL) and some of the unique aspects and challenges. Cleanup of the 65-year old Department of Energy Laboratory is being conducted under a RCRA Consent Order with the State of New Mexico. This agreement is one of the most recent cleanup agreements signed in the DOE complex and was based on lessons learned at other DOE sites. A number of attributes create unique challenges for LANL cleanup -- the proximity to the community and pueblos, the site's topography and geology, and the nature of LANL's on-going missions. This overview paper will set the stage for other papers in this session, including papers that present: Plans to retrieve buried waste at Material Disposal Area B, across the street from oen of Los Alamos' commercial districts and the local newspaper; Progress to date and joint plans with WIPP for disposal of the remaining inventory of legacy transuranic waste; Reviews of both groundwater and surface water contamination and the factors complicating both characterization and remediation; Optimizing the disposal of low-level radioactive waste from ongoing LANL missions; A stakeholder environmental data transparency project (RACER), with full public access to all available information on contamination at LANL, and A description of the approach to waste processing cost recovery from the programs that generate hazardous and radioactive waste at LANL.

  12. Cleanup at the Los Alamos National Laboratory - The Challenges

    International Nuclear Information System (INIS)

    This paper provides an overview of environmental cleanup at the Los Alamos National Laboratory (LANL) and some of the unique aspects and challenges. Cleanup of the 65-year old Department of Energy laboratory is being conducted under a RCRA Consent Order with the State of New Mexico. This agreement is one of the most recent cleanup agreements signed in the DOE complex and was based on lessons learned at other DOE sites. A number of attributes create unique challenges for LANL cleanup - the proximity to the community and pueblos, the site's topography and geology, and the nature of LANL's on-going missions. This overview paper will set the stage for other papers in this session, including papers that present: - Plans to retrieve buried waste at Material Disposal Area B, across the street from one of Los Alamos' commercial districts and the local newspaper; - Progress to date and joint plans with WIPP for disposal of the remaining inventory of legacy transuranic waste; - Reviews of both groundwater and surface water contamination and the factors complicating both characterization and remediation; - Optimizing the disposal of low-level radioactive waste from ongoing LANL missions; - A stakeholder environmental data transparency project (RACER), with full public access to all available information on contamination at LANL, and - A description of the approach to waste processing cost recovery from the programs that generate hazardous and radioactive waste at LANL. (authors)

  13. The Problem about Technology in STEM Education: Some Findings from Action Research on the Professional Development & Integrated STEM Lessons in Informal Fields

    Directory of Open Access Journals (Sweden)

    Tomoki Saito

    2015-04-01

    Full Text Available Since 2013, the authors’ Japanese team in the Department of Science Education at Shizuoka University has held trials of STEM Education in informal fields as participatory action research (e.g., Science museum in Shizuoka, Lifelong Learning Center in Fujieda City, and STEM Summer camp for the preparation for implementing STEM education in public schools and for proposing science education reform in a Japanese context. Problems in preparing STEM lessons include numerous new instructional materials and programs and emerging specialized schools. In addition, while most of these initiatives address one or more of the STEM subjects separately, there are increasing calls for emphasizing connections between and among the subjects (Honey, Pearson and Schweingruber, 2014. Unfamiliar problems for Japanese teachers are, What is Engineering? What is Design? and How can they be implemented in lessons? While gathering STEM learning materials to implement in their STEM Summer Camp, the authors noticed a pattern with which to develop a STEM lesson and developed a template “T-SM-E” in reference to prior STEM studies. After the STEM Summer Camp, the authors introduced the model in the pre-service teacher preparation program. As a result, the authors received suggestions about how teachers can develop integrated STEM lessons, how undergraduate (UG teachers can implement it in their lessons, and how teachers can assess student learning in their STEM lessons. From standard based student assessments and reflections written by the UG teachers, the authors found that it was difficult for the UG teachers to include technology in their lessons, and their assessment also indicated that the students did not show performance proficiency in technology. The authors discuss this existing problem in the Japanese education system.

  14. Strategic Program Planning Lessons Learned in Developing the LTS S&T Roadmap

    Energy Technology Data Exchange (ETDEWEB)

    Duane Hanson; Brent Dixon; Gretchen Matthern

    2003-07-01

    Technology roadmapping is a strategic planning method used by companies to identify and plan the development of technologies necessary for new products. The U.S. Department of Energy’s Office of Environmental Management has used this same method to refine requirements and identify knowledge and tools needed for completion of defined missions. This paper describes the process of applying roadmapping to clarify mission requirements and identify enhancing technologies for the Long-Term Stewardship (LTS) of polluted sites after site cleanup has been completed. The nature of some contamination problems is such that full cleanup is not achievable with current technologies and some residual hazards remain. LTS maintains engineered contaminant barriers and land use restriction controls, and monitors residual contaminants until they no longer pose a risk to the public or the environment. Roadmapping was used to clarify the breadth of the LTS mission, to identify capability enhancements needed to improve mission effectiveness and efficiency, and to chart out the research and development efforts to provide those enhancements. This paper is a case study of the application of roadmapping for program planning and technical risk management. Differences between the planned and actual application of the roadmapping process are presented along with lessons learned. Both the process used and lessons learned should be of interest for anyone contemplating a similar technology based planning effort.

  15. Technology of critical thinking development at the lessons of the course «The fundamentals of religious culture and secular ethics»

    Directory of Open Access Journals (Sweden)

    Umansky Marina

    2016-01-01

    Full Text Available The article is practice-oriented, offering teachers an example of the use of technology of critical thinking development at the lessons of spiritual and moral orientation in the context of the requirements of the state educational standards.

  16. Towards a Socio-Cultural Framework for the Analysis of Joint Student-Teacher Development over Technology-Based Mathematics Lessons

    Science.gov (United States)

    Monaghan, John

    2013-01-01

    This paper offers a framework, an extension of Valsiner's "zone theory", for the analysis of joint student-teacher development over a series of technology-based mathematics lessons. The framework is suitable for developing research studies over a moderately long period of time and considers interrelated student-teacher development as…

  17. The NASA "Why?" Files: The Case of the Mysterious Red Light. A Lesson Guide with Activities in Mathematics, Science, and Technology.

    Science.gov (United States)

    National Aeronautics and Space Administration, Washington, DC.

    The NASA "Why?" Files is a free annual instructional distance learning program that integrates science, mathematics, and technology. The program targets 3rd through 5th grade students and uses a problem-based teaching approach. This lesson guide includes four segments, each with objectives, vocabulary, video component resources, career ideas, and…

  18. Accelerating cleanup: Paths to closure

    International Nuclear Information System (INIS)

    This report describes the status of Environmental Management's (EM's) cleanup program and a direction forward to complete achievement of the 2006 vision. Achieving the 2006 vision results in significant benefits related to accomplishing EM program objectives. As DOE sites accelerate cleanup activities, risks to public health, the environment, and worker safety and health are all reduced. Finding more efficient ways to conduct work can result in making compliance with applicable environmental requirements easier to achieve. Finally, as cleanup activities at sites are completed, the EM program can focus attention and resources on the small number of sites with more complex cleanup challenges. Chapter 1 describes the process by which this report has been developed and what it hopes to accomplish, its relationship to the EM decision-making process, and a general background of the EM mission and program. Chapter 2 describes how the site-by-site projections were constructed, and summarizes, for each of DOE's 11 Operations/Field Offices, the projected costs and schedules for completing the cleanup mission. Chapter 3 presents summaries of the detailed cleanup projections from three of the 11 Operations/Field Offices: Rocky Flats (Colorado), Richland (Washington), and Savannah River (South Carolina). The remaining eight Operations/Field Office summaries are in Appendix E. Chapter 4 reviews the cost drivers, budgetary constraints, and performance enhancements underlying the detailed analysis of the 353 projects that comprise EM's accelerated cleanup and closure effort. Chapter 5 describes a management system to support the EM program. Chapter 6 provides responses to the general comments received on the February draft of this document

  19. Accelerating cleanup: Paths to closure

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-06-01

    This report describes the status of Environmental Management`s (EM`s) cleanup program and a direction forward to complete achievement of the 2006 vision. Achieving the 2006 vision results in significant benefits related to accomplishing EM program objectives. As DOE sites accelerate cleanup activities, risks to public health, the environment, and worker safety and health are all reduced. Finding more efficient ways to conduct work can result in making compliance with applicable environmental requirements easier to achieve. Finally, as cleanup activities at sites are completed, the EM program can focus attention and resources on the small number of sites with more complex cleanup challenges. Chapter 1 describes the process by which this report has been developed and what it hopes to accomplish, its relationship to the EM decision-making process, and a general background of the EM mission and program. Chapter 2 describes how the site-by-site projections were constructed, and summarizes, for each of DOE`s 11 Operations/Field Offices, the projected costs and schedules for completing the cleanup mission. Chapter 3 presents summaries of the detailed cleanup projections from three of the 11 Operations/Field Offices: Rocky Flats (Colorado), Richland (Washington), and Savannah River (South Carolina). The remaining eight Operations/Field Office summaries are in Appendix E. Chapter 4 reviews the cost drivers, budgetary constraints, and performance enhancements underlying the detailed analysis of the 353 projects that comprise EM`s accelerated cleanup and closure effort. Chapter 5 describes a management system to support the EM program. Chapter 6 provides responses to the general comments received on the February draft of this document.

  20. Transfer of nuclear engineering knowledge at Hanoi University of Technology: Lessons learned and challenges

    International Nuclear Information System (INIS)

    Full text: Hanoi University of Technology (HUT) has been being the most important polytechnic education centre of the country for half a century. Nuclear Engineering Education Programme (NEEP) was started at HUT since the year 1970, right after establishment of Department of Nuclear Engineering at the University according to the initiative of the first Minister of Ministry of Higher Education of the country. Since the year 2000 the Department changed its education programme to adapt it to the actual circumstances in the country and renamed as Department of Nuclear Engineering and Environmental Physics (DONEEP). The objectives of the HUT's NEEP are as follows: 1. To train up nuclear technical manpower for development of peaceful uses of atomic energy in Vietnam. 2. To prepare initial nuclear technical human resources for introduction of Nuclear Power into the country. Aiming at these objectives, the Programme achieved remarkable results such as inestimable contributions to introducing and then developing the NDT radiography method in Vietnam, to improving and developing the atomic energy applications in the country, to providing important parts of technical human resources for strengthening the nuclear community of the country. The duration of 37 years of implementation of the Programme may be divided by 3 periods: from 1970 to 1989, 1990-2000 and from the year 2001 up to now. During the first period, the Programme was fully supported by the leadership of the University and the Ministry of Higher Education. The second period was full of difficulties. This was the period of searching the ways for preserving and adapting the Programme to the new circumstances in the country. The present period is the one of searching the ways for developing the NEEP at HUT. The lessons learned from 37-year implementation of the HUT's NEEP are as follows: 1. To establish proper objectives aiming to satisfy the urgent short term and/or long term demands of the country is the most

  1. Document image cleanup and binarization

    Science.gov (United States)

    Wu, Victor; Manmatha, Raghaven

    1998-04-01

    Image binarization is a difficult task for documents with text over textured or shaded backgrounds, poor contrast, and/or considerable noise. Current optical character recognition (OCR) and document analysis technology do not handle such documents well. We have developed a simple yet effective algorithm for document image clean-up and binarization. The algorithm consists of two basic steps. In the first step, the input image is smoothed using a low-pass filter. The smoothing operation enhances the text relative to any background texture. This is because background texture normally has higher frequency than text does. The smoothing operation also removes speckle noise. In the second step, the intensity histogram of the smoothed image is computed and a threshold automatically selected as follows. For black text, the first peak of the histogram corresponds to text. Thresholding the image at the value of the valley between the first and second peaks of the histogram binarizes the image well. In order to reliably identify the valley, the histogram is smoothed by a low-pass filter before the threshold is computed. The algorithm has been applied to some 50 images from a wide variety of source: digitized video frames, photos, newspapers, advertisements in magazines or sales flyers, personal checks, etc. There are 21820 characters and 4406 words in these images. 91 percent of the characters and 86 percent of the words are successfully cleaned up and binarized. A commercial OCR was applied to the binarized text when it consisted of fonts which were OCR recognizable. The recognition rate was 84 percent for the characters and 77 percent for the words.

  2. Planning Lessons

    Institute of Scientific and Technical Information of China (English)

    Linda Jensen

    2007-01-01

    @@ Jensen's "Lesson Planning"article serves aS a guide fOr novice teachers who need to create formalized lesson plans.The article covers why,when,and how teachers plan lessons,as well aS basic lesson plan principles and a lesson plan template.

  3. Hot/warm clean-up technology of gaseous pollutants%气体污染物之中高温净化技术

    Institute of Scientific and Technical Information of China (English)

    邱耀平; 陈一顺; 黄亮维

    2012-01-01

    核能研究所从2005年起,开始执行净碳技术领域研究,而气体污染物之中高温净化技术为其中的重点之一.中高温净化程序系将典型低温气体处理程序由室温提升至中高温层级,藉由气体处理温度的增高,可降低因温度变化所导致的可用能量减损,进而提升系统整体效能.主要涵盖两大领域技术,首先为流动式颗粒床过滤器气体净化技术,其原生技术为一可应用于中高温的粉尘过滤装置,本研究将其延伸发展为一种复合型过滤系统.其次,中高温脱硫为具有前瞻性的气体减排技术之一,本研究以含浸法制备脱硫剂,并于固定床反应器中进行化性测试;目前得到的最佳吸附容量为7.4g-S/100g sorbent.藉由上述技术之发展,希望提供温室气体排放减量的可行技术.%To comply with the domestic technology RD strategy,a feasibility study project on sustainable clean coal technologies has been undertaken at the Institute of Nuclear Energy Research(INER) since 2005.This work represents the follow-up efforts for mitigating greenhouse gas emissions from sustainable development viewpoints.It is expected that this strategic planning will establish the essential foundation for technologies needed to fulfill the policy of energy saving and carbon abatement.This work focuses on the strategic planning of clean carbon-based energy technologies,from the viewpoints of both practical development and advanced research.The exhibited technology consists of two categories.The first one is advanced gas filtration technology in moving granular bed filter,which is associated with the development of multistage granular moving bed apparatus.Using filter granules under different kinds or particle sizes,higher filtration efficiency collected in the dirty gas conditions could be achieved.The other technology is the so-called hot/warm gas desulfurization,which displays potential to control sulfide emission.In the present study

  4. Oil spills and their cleanup

    International Nuclear Information System (INIS)

    Oil spills are an unfortunately common occurrence in the world's seas and can have extensive damaging environmental consequences. This article examines various methods of cleaning up oil spills, evaluates their effectiveness in various situations, and identifies areas where, current methods being inadequate, further research is needed. Containment, mechanical removal, shoreline cleanup, chemical treating agents, in situ burning, natural recovery and enhanced bioremediation are all assessed. The cleanup method must be selected to match environmental conditions. Results are good in quiet, sheltered waters, but need extensive development in open waters and high seas. (UK)

  5. WHAT DRIVES TECHNOLOGY UTILISATION, LEARNING AND TRANSFER IN AGRICULTURE? LESSONS FROM NIGERIAN WOMEN FARMERS

    Directory of Open Access Journals (Sweden)

    Olajumoke ADEYEYE

    2013-01-01

    Full Text Available This study examines the factors that drive technology utilisation, learning and transfer among women farmers in Nigeria. It assesses both modern and indigenous technologies used in farming activities. Three states were purposively selected from the six that comprise the South West geopolitical zone of the country. Structured questionnaire was administered to 180 women smallholder farmers who were randomly selected in equal proportion across the three states. Some 128 copies of questionnaire were retrieved representing a response rate of about 71%. The study reveals that majority of the women (about 67% use indigenous technologies while only a few (17% and 16% use modern technologies and a combination of both respectively. Family and friends are the main source of learning indigenous technologies while extension agents are the major source of modern. The study uses spearman correlation to determine the drivers of the dependent variables. Age, level of education, years of experience and learning intensity are significantly correlated with technology utilisation at 1% level of confidence while primary occupation and learning have significant correlation with technology learning at 5% and 1% confidence level respectively. The study also reveals that farmers’ age, experience and availability of learning system are have significant correlation with technology transfer. The study advocates the introduction of need and gender-specific new technologies. There is the need for integration of indigenous technologies into research so that it can be attractive to the older women. Also, farmers should be integrated into the technology development process. This will help in sustaining the rising interest of younger women in adapting modern and indigenous technologies in agriculture. The study also advocates the need for deeper and broader interactions among key actors, such as, R&D institutions, extension agents, NGOs, CBOs and farmers on the effectiveness

  6. Austin ISD. Integrated Lesson Plans.

    Science.gov (United States)

    East Texas State Univ., Commerce. Educational Development and Training Center.

    This packet contains 14 lesson plans for integrated academic and vocational education courses. Lesson plans for the following courses are included: integrated physics and principles of technology; algebra and principles of technology; principles of technology, language arts, and economics; physics and industrial electronics; physics and…

  7. Accelerated cleanup Initiatives Putting the Acceleration Plans into Action

    International Nuclear Information System (INIS)

    This paper describes project successes during the last year and presents strategies for accomplishing work required to accelerate waste retrieval, treatment and closure of 177 large underground waste tanks at the Hanford Site. The tanks contain approximately 53 million gallons of liquid, sludge, and solid waste resulting from decades of national defense production. The Hanford Site is a 560 square-mile area in southeastern Washington State. One of the nation's largest rivers, the Columbia River, flows through the site and within seven miles of the waste tanks. The US. Department of Energy (DOE) Office of River Protection and CH2M HILL Hanford Group, Inc. (CH2M HILL) drew upon the recommendations in the DOE's Top-To-Bottom Review and the ideas that emerged from the Cleanup Challenges and Constraints Team (C3T) when creating new initiatives last fall in accelerated tank cleanup. The initiatives reflect discussions and planning during the last year by the DOE, regulatory,agencies, Hanford stakeholders, and CH2M HILL on how to accelerate tank cleanup and closure. The initiatives focus on near-term risk reduction, deployment of proven cleanup technologies, and completing the feed delivery and waste storage systems needed to support Hanford's Waste Treatment Plant. Working with the Office of River Protection, CH2M HILL is changing the way it does business to align with the new focus on accelerated tank cleanup initiatives. A key concept of this new approach is to deploy simple, proven technologies whenever possible to accomplish program goals. Finding existing technologies and evaluating whether they can be applied to or adapted to Hanford tank cleanup provide the best chance for success in achieving treatment of all of Hanford's tank waste by 2028

  8. Recycling Facilities - Land Recycling Cleanup Locations

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Land Recycling Cleanup Location Land Recycling Cleanup Locations (LRCL) are divided into one or more sub-facilities categorized as media: Air, Contained Release or...

  9. Bioremediation: environmental clean-up through pathway engineering.

    Science.gov (United States)

    Singh, Shailendra; Kang, Seung Hyun; Mulchandani, Ashok; Chen, Wilfred

    2008-10-01

    Given the immense risk posed by widespread environmental pollution by inorganic and organic chemicals, novel methods of decontamination and clean-up are required. Owing to the relatively high cost and the non-specificity of conventional techniques, bioremediation is a promising alternative technology for pollutant clean-up. Advances in bioremediation harness molecular, genetic, microbiology, and protein engineering tools and rely on identification of novel metal-sequestering peptides, rational and irrational pathway engineering, and enzyme design. Recent advances have been made for enhanced inorganic chemical remediation and organic chemical degradation using various pathway-engineering approaches and these are discussed in this review. PMID:18760355

  10. Methodology for setting cleanup criteria

    International Nuclear Information System (INIS)

    The U.S. Department of Energy (DOE) has developed guidance for establishing cleanup criteria or authorized limits for sites containing residual radioactive material. The DOE requires that the as-low-as-reasonably-achievable (ALARA) process be applied. This process results in the development of cleanup levels that are as low as practicable giving due consideration to health, environment, economics, cultural, and natural resources and other factors. The process employs a cost-benefit optimization analysis and, where appropriate and feasible, considers multiple attributes. Frequently, some important factors or attributes do not lend themselves to quantification in a cost-benefit study and therefore must be considered qualitatively in the process. While the cost-benefit analysis is not the only consideration, it is an important clement in the establishment of cleanup criteria and selection of remedial alternatives. Key to the cost-benefit process is the relation between cleanup level and dose. This is determined through pathway analysis methodology. This paper discusses the pathway analysis process and will cover radiologically and nonradiologically contaminated sites and building contamination

  11. Consolidating federal facility cleanup: Some pros and cons

    International Nuclear Information System (INIS)

    It has been suggested that Congress establish a permanent, full-time, independent national commission for radioactive waste management activities at DOE's Nuclear Weapons Complex. DOE regulates certain aspects of its treatment, storage, and disposal of radioactive waste by orders that are not promulgated by ''notice and comment'' or other procedures in the Administration Procedures Act. Because many agencies are not legally and technologically structured to handle their own cleanup problems, these activities might be conducted by one entity that can share information and staff among these agencies. There are rational arguments for both sides of this issue. Some of the advantages of such an organization include: focusing Congress's attention on an integrated federal facility cleanup instead of a fragmented, agency by agency approach, and an ability to prioritize cleanup decisions among agencies. Some significant obstacles include: reluctance by Congress and the executive branch to create any new bureaucracy at a time of budget deficits, and a loss of momentum from the progress already being made by the agencies. Given that more than $9 billion was proposed for FY 93 alone for federal facilities' cleanup programs and that decades will pass before all problems are addressed, it is appropriate to consider new approaches to environmental cleanup. This paper begins the dialogue about new ways to improve decision-making and government spending

  12. United States Policies for Cleanup at Radioactively Contaminated Sites

    International Nuclear Information System (INIS)

    The United States Environmental Protection Agency (EPA) Office of Superfund Remediation and Technology Innovation is responsible for implementing the long term (non-emergency) portion of a key law regulating cleanup: the Comprehensive Environmental Response, Compensation and Liability Act, CERCLA, nicknamed ‘Superfund.’ This paper provides a brief overview of the approach used by EPA to conduct Superfund cleanups at contaminated sites, including those that are contaminated with radionuclides, and to ensure protection of human health and the environment. The theme emphasized throughout the paper is that within the Superfund remediation framework, radioactive contamination is dealt with in a manner consistent with chemical contamination, except to account for the technical differences between radionuclides and chemicals. This consistency is important since at every radioactively contaminated site being addressed under Superfund’s primary programme for long term cleanup (the National Priorities List), chemical contamination is also present. (author)

  13. Shaping the Future with Math, Science, and Technology: Solutions and Lesson Plans to Prepare Tomorrow's Innovators

    Science.gov (United States)

    Adams, Dennis; Hamm, Mary

    2011-01-01

    "Shaping the Future with Math, Science, and Technology" examines how ingenuity, creativity, and teamwork skills are part of an intellectual toolbox associated with math, science, and technology. The book provides new ideas, proven processes, practical tools, and examples useful to educators who want to encourage students to solve problems and…

  14. Lessons Learned: Findings from MIT Initiatives in Educational Technology (2000-2005)

    Science.gov (United States)

    Breslow, Lori

    2007-01-01

    Since 1999, MIT has undertaken an extensive effort in creating and implementing educational technology. Broadly speaking, there have been two kinds of efforts: developing web-based services for higher education and creating educational technology applications for use in the classroom. This article reviews a group of projects that produced…

  15. An Exploration of Contemporary Realities of Technology and Teacher Education: Lessons Learned

    Science.gov (United States)

    Bakir, Nesrin

    2015-01-01

    In order to better prepare preservice teachers to teach with technology, this study examines the current practices and barriers in technology implementation in three teacher education programs. This multiple-case study relied upon site visits, observations, in-depth interviews with faculty, staff, and preservice teachers, and examinations of…

  16. LAW ENFORCEMENT TECHNOLOGY ROADMAP: LESSONS TO DATE FROM THE NORTHWEST TECHNOLOGY DESK AND THE NORTHWEST FADE PILOTS

    Energy Technology Data Exchange (ETDEWEB)

    West, Curtis L.; Kreyling, Sean J.

    2011-04-01

    The goal of this report is to provide insight into the information technology needs of law enforcement based on first hand observations as an embedded and active participant over the course of two plus years. This report is intended as a preliminary roadmap for technology and project investment that will benefit the entire law enforcement community nationwide. Some recommendations are immediate and have more of an engineering flavor, while others are longer term and will require research and development to solve.

  17. Accelerated cleanup risk reduction

    Energy Technology Data Exchange (ETDEWEB)

    Knapp, R.B.; Aines, R.M.; Blake, R.G.; Copeland, A.B.; Newmark, R.L.; Tompson, A.F.B.

    1998-02-01

    There is no proven technology for remediating contaminant plume source regions in a heterogeneous subsurface. This project is an interdisciplinary effort to develop the requisite new technologies so that will be rapidly accepted by the remediation community. Our technology focus is hydrous pyrolysis/oxidation (HPO) which is a novel in situ thermal technique. We have expanded this core technology to leverage the action of steam injection and place an in situ microbial filter downstream to intercept and destroy the accelerated movement of contaminated groundwater. Most contaminant plume source regions, including the chlorinated solvent plume at LLNL, are in subsurface media characterized by a wide range in hydraulic conductivity. At LLNL, the main conduits for contaminant transport are buried stream channels composed of gravels and sands; these have a hydraulic conductivity in the range of 10{sup -1} to 10{sup -2} cm/s. Clay and silt units with a hydraulic conductivity of 10{sup -1} to 10{sup -6} cm/s bound these buried channels; these are barriers to groundwater movement and contain the highest contaminant concentrations in the source region. New remediation technologies are required because the current ones preferentially access the high conductivity units. HPO is an innovative process for the in situ destruction of contaminants in the entire subsurface. It operates by the injection of steam. We have demonstrated in laboratory experiments that many contaminants rapidly oxidize to harmless compounds at temperatures easily achieved by injecting steam, provided sufficient dissolved oxygen is present. One important challenge in a heterogeneous source region is getting heat, contaminants, and an oxidizing agent in the same place at the same time. We have used the NUFT computer program to simulate the cyclic injection of steam into a contaminated aquifer for design of a field demonstration. We used an 8 hour, steam/oxygen injection cycle followed by a 56 hour relaxation

  18. Oil Spill Cleanup

    Science.gov (United States)

    1994-01-01

    Petroleum Remediation Product (PRP) is a new way of cleaning up oil spills. It consists of thousands of microcapsules, tiny balls of beeswax with hollow centers, containing live microorganisms and nutrients to sustain them. As oil flows through the microcapsule's shell, it is consumed and digested by the microorganisms. Pressure buildup causes the PRP to explode and the enzymes, carbon dioxide and water are released into the BioBoom used in conjunction with PRP, preventing contaminated water from spreading. The system incorporates technology originally developed at the Jet Propulsion Laboratory and Marshall Space Flight Center.

  19. User-led innovations and participation processes: lessons from sustainable energy technologies

    International Nuclear Information System (INIS)

    In this paper we will pose the question whether a higher level of user participation could be used as a strategy to improve the development and dissemination of sustainable energy technologies. We will especially focus on user-led innovation processes with a high involvement of individual end-users. In our argument we will draw on several case studies in the field of renewable energy technologies-in particular solar collectors and biomass heating systems-and sustainable building technologies. Users in these case studies were involved in the design or planning processes, sometimes in a very selective way and with limited influence, sometimes very active and for quite a long period of time. Especially in the case of renewable energy technologies self-building groups were highly successful and resulted in improved and widely disseminated technologies. Based on the empirical results of our case studies we will critically discuss the potential of user involvement (especially in self-building groups) for the development and promotion of sustainable energy technologies and outline technological and social pre-conditions for the success of such approaches

  20. Accelerated cleanup risk reduction

    International Nuclear Information System (INIS)

    There is no proven technology for remediating contaminant plume source regions in a heterogeneous subsurface. This project is an interdisciplinary effort to develop the requisite new technologies so that will be rapidly accepted by the remediation community. Our technology focus is hydrous pyrolysis/oxidation (HPO) which is a novel in situ thermal technique. We have expanded this core technology to leverage the action of steam injection and place an in situ microbial filter downstream to intercept and destroy the accelerated movement of contaminated groundwater. Most contaminant plume source regions, including the chlorinated solvent plume at LLNL, are in subsurface media characterized by a wide range in hydraulic conductivity. At LLNL, the main conduits for contaminant transport are buried stream channels composed of gravels and sands; these have a hydraulic conductivity in the range of 10-1 to 10-2 cm/s. Clay and silt units with a hydraulic conductivity of 10-1 to 10-6 cm/s bound these buried channels; these are barriers to groundwater movement and contain the highest contaminant concentrations in the source region. New remediation technologies are required because the current ones preferentially access the high conductivity units. HPO is an innovative process for the in situ destruction of contaminants in the entire subsurface. It operates by the injection of steam. We have demonstrated in laboratory experiments that many contaminants rapidly oxidize to harmless compounds at temperatures easily achieved by injecting steam, provided sufficient dissolved oxygen is present. One important challenge in a heterogeneous source region is getting heat, contaminants, and an oxidizing agent in the same place at the same time. We have used the NUFT computer program to simulate the cyclic injection of steam into a contaminated aquifer for design of a field demonstration. We used an 8 hour, steam/oxygen injection cycle followed by a 56 hour relaxation period in which the well

  1. To revisit economics of nuclear technology. Lessons from the learning of a complex technology by major accidents

    International Nuclear Information System (INIS)

    The Fukushima accident raises again the issue of the social and economic viability of nuclear technology. To re-evaluate this viability, we analyse the past process of internalisation of external costs of nuclear energy, which present the specificities to be chanted by accidents and has had a constant effect of complexification. This process has provoked a de-organisation of the classical learning process reflected in constant cost increases and the change of social preferences, to end up by the lack of competitiveness before climate policies. Independent institutions of safety regulation have become essential elements of the social embeddedness of nuclear technology at the expense of technology stability and standardization, condition of its competitiveness. In this perspective, the paper argues that the new sequence of social costs' internalization opened by Fukushima will have limited effects on costs, because of anterior steps of safety improvements. Nuclear technology complexification reaches its asymptote: it is being to overcome the challenge of 'learning by major accidents'. On the other hand nuclear institutions must be re-designed in such a way that it could guarantee maximum safety records and minimum residual risks by going to the other root of the safety issue, the degree of independence and capabilities of the safety authorities in every country, what cannot be decreed. It is nevertheless at this price that could be preserved the global public good of the social acceptance of nuclear technology by limiting drastically chance of new accidents. (author)

  2. High Technology in Medicine: Lessons from Cardiovascular Innovations and Future Perspective

    OpenAIRE

    Rafael Beyar

    2013-01-01

    Four decades of innovations in the field of interventional cardiology are presented as an example for the great growth of high technology in medicine, side by side with the development of general technology and science. The field of percutaneous coronary intervention (PCI) was enabled by the development of X-ray systems, allowing us to view the pathology, and was critically dependent on courageous and imaginative physicians and scientists who developed percutaneous transluminal coronary angio...

  3. Heritage and Advanced Technology Systems Engineering Lessons Learned from NASA Space Missions

    Science.gov (United States)

    Barley, Bryan; Newhouse, Marilyn; Bacskay, Allen

    2010-01-01

    Use of heritage and new technology is necessary/enabling to implementing small, low cost missions, yet overruns decrease the ability to sustain future mission flight rates The majority of the cost growth drivers seen in the D&NF study were embedded early during formulation phase and later realized during the development and I&T phases Cost drivers can be avoided or significantly decreased by project management and SE emphasis on early identification of risks and realistic analyses SE processes that emphasize an assessment of technology within the mission system to identify technical issues in the design or operational use of the technology. Realistic assessment of new and heritage spacecraft technology assumptions , identification of risks and mitigation strategies. Realistic estimates of effort required to inherit existing or qualify new technology, identification of risks to estimates and develop mitigation strategies. Allocation of project reserves for risk-based mitigation strategies of each individual area of heritage or new technology. Careful tailoring of inheritance processes to ensure due diligence.

  4. Land Cover Change Community-based Processing and Analysis System (LC-ComPS): Lessons Learned from Technology Infusion

    Science.gov (United States)

    Masek, J.; Rao, A.; Gao, F.; Davis, P.; Jackson, G.; Huang, C.; Weinstein, B.

    2008-12-01

    transfer and remote job execution on the grid network of machines. In addition, science support was needed to vet that the grid technology did not have any adverse affects of the science module outputs. Other open source, unproven technologies, such as a workflow package to manage jobs submitted by the user, were infused into the overall system with successful results. This presentation will discuss the basic capabilities of LC-ComPS, explain how the technology was infused, and provide lessons learned for using and integrating the various technologies while developing and operating the system, and finally outline plans moving forward (maintenance and operations decisions) based on the experience to date.

  5. Investing in International Information Exchange Activities to Improve the Safety, Cost Effectiveness and Schedule of Cleanup - 13281

    Energy Technology Data Exchange (ETDEWEB)

    Seed, Ian; James, Paula [Cogentus Consulting (United States); Mathieson, John [NDA United Kingdom (United Kingdom); Judd, Laurie [NuVision Engineering, Inc. (United States); Elmetti-Ramirez, Rosa; Han, Ana [US DOE (United States)

    2013-07-01

    With decreasing budgets and increasing pressure on completing cleanup missions as quickly, safely and cost-effectively as possible, there is significant benefit to be gained from collaboration and joint efforts between organizations facing similar issues. With this in mind, the US Department of Energy (DOE) and the UK Nuclear Decommissioning Authority (NDA) have formally agreed to share information on lessons learned on the development and application of new technologies and approaches to improve the safety, cost effectiveness and schedule of the cleanup legacy wastes. To facilitate information exchange a range of tools and methodologies were established. These included tacit knowledge exchange through facilitated meetings, conference calls and Site visits as well as explicit knowledge exchange through document sharing and newsletters. A DOE web-based portal has been established to capture these exchanges and add to them via discussion boards. The information exchange is operating at the Government-to-Government strategic level as well as at the Site Contractor level to address both technical and managerial topic areas. This effort has resulted in opening a dialogue and building working relationships. In some areas joint programs of work have been initiated thus saving resource and enabling the parties to leverage off one another activities. The potential benefits of high quality information exchange are significant, ranging from cost avoidance through identification of an approach to a problem that has been proven elsewhere to cost sharing and joint development of a new technology to address a common problem. The benefits in outcomes significantly outweigh the costs of the process. The applicability of the tools and methods along with the lessons learned regarding some key issues is of use to any organization that wants to improve value for money. In the waste management marketplace, there are a multitude of challenges being addressed by multiple organizations and

  6. Investing in International Information Exchange Activities to Improve the Safety, Cost Effectiveness and Schedule of Cleanup - 13281

    International Nuclear Information System (INIS)

    With decreasing budgets and increasing pressure on completing cleanup missions as quickly, safely and cost-effectively as possible, there is significant benefit to be gained from collaboration and joint efforts between organizations facing similar issues. With this in mind, the US Department of Energy (DOE) and the UK Nuclear Decommissioning Authority (NDA) have formally agreed to share information on lessons learned on the development and application of new technologies and approaches to improve the safety, cost effectiveness and schedule of the cleanup legacy wastes. To facilitate information exchange a range of tools and methodologies were established. These included tacit knowledge exchange through facilitated meetings, conference calls and Site visits as well as explicit knowledge exchange through document sharing and newsletters. A DOE web-based portal has been established to capture these exchanges and add to them via discussion boards. The information exchange is operating at the Government-to-Government strategic level as well as at the Site Contractor level to address both technical and managerial topic areas. This effort has resulted in opening a dialogue and building working relationships. In some areas joint programs of work have been initiated thus saving resource and enabling the parties to leverage off one another activities. The potential benefits of high quality information exchange are significant, ranging from cost avoidance through identification of an approach to a problem that has been proven elsewhere to cost sharing and joint development of a new technology to address a common problem. The benefits in outcomes significantly outweigh the costs of the process. The applicability of the tools and methods along with the lessons learned regarding some key issues is of use to any organization that wants to improve value for money. In the waste management marketplace, there are a multitude of challenges being addressed by multiple organizations and

  7. The Relationship Between Usage Rate of Information and Communication Technology by Faculty Members of Ferdowsi University of Mashhad, and Motivation Rate, Updating of Lesson Content and Attractiveness of Classroom in Academic Year of 2008-2009

    OpenAIRE

    Shila Soleymani; Seyyed Yaghub Mosavi; Mehri Parirokh

    2012-01-01

    The present paper aimed to study the relationship between usage rate of information and communication technology by faculty members of Ferdowsi University of Mashhad and motivation rate, updating of lesson content and attractiveness of classroom in academic year of 2008-2009 and to study the ability to use information and communication technology in the classroom effectively , its effects on motivation of teachers and learners and updating of lesson content and to investigate possible difficu...

  8. Navigating the limitations of energy poverty: Lessons from the promotion of improved cooking technologies in Kenya

    International Nuclear Information System (INIS)

    Energy poverty has been defined as the lack of access of households in developing countries to modern energy sources, and their consequent reliance on solid biomass fuels for cooking. Improved stoves have been promoted by development actors since the 1970s to alleviate various environmental and health problems associated with biomass use, with largely disappointing outcomes. Against this background, this paper examines the intervention of an international development organisation – Practical Action – in West Kochieng, Kenya, where the organisation's energy poverty alleviation efforts are aimed at addressing the health hazards of biomass smoke with six ‘low-cost’ improved cooking technologies. The study reveals that the cooking technology most valued by poor West Kochieng households is the one which most reflects their priorities, rather than those expressed by Practical Action. The findings point to three aspects of appropriateness of energy poverty alleviation interventions – technological, economic and cultural – which combine to influence acceptance and uptake of such interventions. The evidence highlights some of the limitations inherent in the generic policy recommendation to ‘leapfrog’ towards the resolution of energy poverty-related problems, and suggests that more measured steps which respond to the socio-economic realities of poor households are likely to engender more appropriate solutions. - Highlights: ► The technological, economic, and cultural appropriateness of stoves influence uptake. ► Appropriate energy technologies take cognisance of the limitations of poverty. ► Such technologies are more likely to be adopted by biomass-reliant poor households. ► Energy poverty cannot be isolated from the broader context of poverty. ► Eliminating poverty is a prerequisite to alleviating energy poverty.

  9. Lessons learned from the development of technological support for PTSD prevention: a review.

    Science.gov (United States)

    Vakili, Vanessa; Brinkman, Willem-Paul; Neerincx, Mark A

    2012-01-01

    This review describes the state-of-the-art technologies that support mental resilience training for PTSD prevention. It characterizes four current systems across training approaches; seeks insights via interviews with the system developers; and extracts from these a set of essential guidelines for future developers. The guidelines include four distinct project-limiting factors, which were found to constrain the reviewed developments. These were Culture, Effectiveness, Engineering, and Resource constraints.This research is novel in reviewing technologies for PTSD prevention as opposed to treatment, and in analyzing from the perspective of system development and design issues. PMID:22954821

  10. Mobile technologies and supply chain management - lessons for the hospitality industry

    OpenAIRE

    Tomislav Car; Ljubica Pilepić; Mislav Šimunić

    2014-01-01

    Purpose – The purpose of this paper is to define preconditions and integration capabilities of the mobile business in supply chain management (SCM) in the hospitality industry via mobile devices and mobile applications. The aims of this paper are to reflect on what mobile technology has to offer and to draw attention to the role of mobile applications and their use in the SCM. Although mobile technologies are present in almost all areas, they are not used to their full potential. Design – The...

  11. Business models for cost effective use of health information technologies: lessons learned in the CHCS II project.

    Science.gov (United States)

    Riley, David L

    2003-01-01

    The Department of Defense (DoD) has embarked on an initiative to create an electronic medical record for all of its eligible beneficiaries. The Clinical Information Technology Program Office (CITPO) is the joint-service program office established to centrally manage this multi-year project. The Composite Health Care System II (CHCS II) is the name of the system under development. Given the historical failure rate of large-scale government information system projects, CITPO has employed an incremental acquisition approach and striven to use industry best practices to the greatest degree possible within the constraints of federal acquisition law. Based on lessons learned during the concept exploration phase of this project, CITPO, in partnership with Integic Corporation, the prime integration contractor, has reengineered its software acquisition process to include industry best practices. The result of this reengineering process has resulted in a reduction of the total projected life cycle costs for CHCS II from the original estimate of $7.6 billion over a 14-year period to between $3.9 and $4.3 billion. PMID:15455852

  12. The Opinion of Preservice Teachers’ What the Most Important Subject is Which Should be Learned in Science and Technology Lessons

    Directory of Open Access Journals (Sweden)

    M. Pınar DEMİRCİ GÜLER

    2008-04-01

    Full Text Available The purpose of this study is to determine the opinions of preservice teachers about what the 4.grade students should learn in science and technology lesson who takes the subject for the first time. In this aim, according to preservice teachers, the question, what the most important subject is, which the 4. class students should learn, and its reasons, is asked. Universe of this study is consist of 3th. grade students of Candidate Teaching of Ahi Evran University. Also, the sample of this study is formed by the 71 students who are chosen randomly. Findings from this study are investigated as a descriptive, then these are classified the areas of biology, physic, and chemistry, lastly, these findings are investigated in the area of units. According to answers of candidates, it is mentioned that the students should learn biology at most, and then they should learn physic and chemistry. Their reasons are presented with the teacher’s own descriptions and details. The opinions of candidates and elementary school students have similarities. Both teachers and students share the same ideas of the most important subject is biology, and then chemistry and physics, which should be learned. The subjects, which the students are curious about, and the teachers want to teach confirm the principle of from the close to the far and from the concrete to the abstract.

  13. Participatory Practices: Lessons Learnt from Two Initiatives Using Online Digital Technologies to Build Knowledge

    Science.gov (United States)

    Joubert, Marie; Wishart, Jocelyn

    2012-01-01

    This study drew on data from two different initiatives in which groups of participants were asked to work together to build knowledge. In the first initiative school students were asked to discuss ethical issues in science, using a moderated online discussion board and in the second, researchers in the field of Technology Enhanced Learning (TEL)…

  14. Consumer acceptance of technology-based food innovations: Lessons for the future of nutrigenomics

    NARCIS (Netherlands)

    Ronteltap, A.; Trijp, van J.C.M.; Renes, R.J.; Frewer, L.J.

    2007-01-01

    Determinants of consumer adoption of innovations have been studied from different angles and from the perspectives of various disciplines. In the food area, the literature is dominated by a focus on consumer concern. This paper reviews previous research into acceptance of technology-based innovation

  15. Foreign technology and local innovation : some lessons from spanish defense industry experience

    OpenAIRE

    Molero Zayas, José

    1987-01-01

    The subject to be dealt with here technology imports as against local production is a question open to debate within the recent industrial experience of countries such as Spain, with a medium level of development. Placed in the general framework of this volume, this subject takes shape through the simultaneous discussion of two problems.

  16. Accelerating the transfer and diffusion of energy saving technologies steel sector experience-Lessons learned

    Energy Technology Data Exchange (ETDEWEB)

    Okazaki, Teruo, E-mail: okazaki.teruo@nsc.co.j [Research Center for Advanced Science and Technology, University of Tokyo, 6-1 Marunouchi, 2 Chiyoda, Tokyo 100-8071 (Japan); Global Environmental Affairs Department, Nippon Steel Corporation, 6-1 Marunouchi, 2 Chiyoda, Tokyo 100-8071 (Japan); Yamaguchi, Mitsutsune, E-mail: mits@m-yamaguchi.j [Research Center for Advanced Science and Technology, University of Tokyo, 13-207 4-6-1 Komaba Meguro, Tokyo153-8904 (Japan)

    2011-03-15

    It is imperative to tackle the issue globally mobilizing all available policies and measures. One of the important ones among them is technology transfer and diffusion. By utilizing international co-operation, industry can promote such measures in two ways: through government policy and through industry's own voluntary initiative. Needless to say, various government policies and measures play essential role. By the same token, industry initiative can complement them. There is much literature documenting the former. On the contrary there are few on the latter. This paper sheds light on the latter. The purpose of this paper is to explore the effectiveness of global voluntary sectoral approach for technology diffusion and transfer based on steel sector experience. The goal is to contribute toward building a worldwide low-carbon society by manufacturing goods with less energy through international cooperation of each sector. The authors believe that the voluntary sectoral approach is an effective method with political and practical feasibilities, and hope to see the continued growth of more initiatives based on this approach. - Highlights: {yields} There exist huge reduction potentials in steel industries globally. {yields} Technology transfer and diffusion are keys to achieve reductions. {yields} Main barriers are economic, technological and policy-related. {yields} Case studies in overcoming barriers are discussed. {yields} In steel industry, a voluntary sectoral approach has shown to be effective.

  17. Advanced Technologies and Data Management Practices in Environmental Science: Lessons from Academia

    Science.gov (United States)

    Hernandez, Rebecca R.; Mayernik, Matthew S.; Murphy-Mariscal, Michelle L.; Allen, Michael F.

    2012-01-01

    Environmental scientists are increasing their capitalization on advancements in technology, computation, and data management. However, the extent of that capitalization is unknown. We analyzed the survey responses of 434 graduate students to evaluate the understanding and use of such advances in the environmental sciences. Two-thirds of the…

  18. Gender Stereotypes among Women Engineering and Technology Students in the UK: Lessons from Career Choice Narratives

    Science.gov (United States)

    Powell, Abigail; Dainty, Andrew; Bagilhole, Barbara

    2012-01-01

    In the UK, women remain under-represented in engineering and technology (E&T). Research has, therefore, investigated barriers and solutions to women's recruitment, retention and progression. Recruitment into the sector may be supported by exploring the career decisions of women and men who have chosen to study E&T. Triangulating quantitative and…

  19. Forecasting Consumer Adoption of Information Technology and Services--Lessons from Home Video Forecasting.

    Science.gov (United States)

    Klopfenstein, Bruce C.

    1989-01-01

    Describes research that examined the strengths and weaknesses of technological forecasting methods by analyzing forecasting studies made for home video players. The discussion covers assessments and explications of correct and incorrect forecasting assumptions, and their implications for forecasting the adoption of home information technologies…

  20. A Qualitative Study about Performance Based Assesment Methods Used in Information Technologies Lesson

    Science.gov (United States)

    Daghan, Gökhan; Akkoyunlu, Buket

    2014-01-01

    In this study, Information Technologies teachers' views and usage cases on performance based assesment methods (PBAMs) are examined. It is aimed to find out which of the PBAMs are used frequently or not used, preference reasons of these methods and opinions about the applicability of them. Study is designed with the phenomenological design…

  1. The Development of Educational Technology Policies (1996-2012): Lessons from China and the USA

    Science.gov (United States)

    Alamin, Alnuaman A.; Shaoqing, Guo; Le, Zhang

    2015-01-01

    This study reviews the development of educational technology macro policies in China and USA based on the historical juxtaposition approach. It shows that, despite the fact that two countries have major differences, with China officially being a socialist country, while the USA is a capitalist country; the development of educational technology…

  2. Accelerating the transfer and diffusion of energy saving technologies steel sector experience-Lessons learned

    International Nuclear Information System (INIS)

    It is imperative to tackle the issue globally mobilizing all available policies and measures. One of the important ones among them is technology transfer and diffusion. By utilizing international co-operation, industry can promote such measures in two ways: through government policy and through industry's own voluntary initiative. Needless to say, various government policies and measures play essential role. By the same token, industry initiative can complement them. There is much literature documenting the former. On the contrary there are few on the latter. This paper sheds light on the latter. The purpose of this paper is to explore the effectiveness of global voluntary sectoral approach for technology diffusion and transfer based on steel sector experience. The goal is to contribute toward building a worldwide low-carbon society by manufacturing goods with less energy through international cooperation of each sector. The authors believe that the voluntary sectoral approach is an effective method with political and practical feasibilities, and hope to see the continued growth of more initiatives based on this approach. - Highlights: → There exist huge reduction potentials in steel industries globally. → Technology transfer and diffusion are keys to achieve reductions. → Main barriers are economic, technological and policy-related. → Case studies in overcoming barriers are discussed. → In steel industry, a voluntary sectoral approach has shown to be effective.

  3. The Multimedia Dictionary of American Sign Language: Learning Lessons About Language, Technology, and Business.

    Science.gov (United States)

    Wilcox, Sherman

    2003-01-01

    Reports on the the Multimedia Dictionary of American Sign language, which was was conceived in he late 1980s as a melding of the pioneering work in American Sign language lexicography that had been carried out decades earlier and the newly emerging computer technologies that were integrating use of graphical user-interface designs, rapidly…

  4. Accelerating cleanup: Paths to closure

    Energy Technology Data Exchange (ETDEWEB)

    Edwards, C.

    1998-06-30

    This document was previously referred to as the Draft 2006 Plan. As part of the DOE`s national strategy, the Richland Operations Office`s Paths to Closure summarizes an integrated path forward for environmental cleanup at the Hanford Site. The Hanford Site underwent a concerted effort between 1994 and 1996 to accelerate the cleanup of the Site. These efforts are reflected in the current Site Baseline. This document describes the current Site Baseline and suggests strategies for further improvements in scope, schedule and cost. The Environmental Management program decided to change the name of the draft strategy and the document describing it in response to a series of stakeholder concerns, including the practicality of achieving widespread cleanup by 2006. Also, EM was concerned that calling the document a plan could be misconstrued to be a proposal by DOE or a decision-making document. The change in name, however, does not diminish the 2006 vision. To that end, Paths to Closure retains a focus on 2006, which serves as a point in time around which objectives and goals are established.

  5. Systems Engineering Using Heritage Spacecraft Technology: Lessons Learned from Discovery and New Frontiers Deep Space Missions

    Science.gov (United States)

    Barley, Bryan; Newhouse, Marilyn; Clardy, Dennon

    2011-01-01

    In the design and development of complex spacecraft missions, project teams frequently assume the use of advanced technology or heritage systems to enable a mission or reduce the overall mission risk and cost. As projects proceed through the development life cycle, increasingly detailed knowledge of the advanced or heritage systems and the system environment identifies unanticipated issues that result in cost overruns or schedule impacts. The Discovery & New Frontiers (D&NF) Program Office recently studied cost overruns and schedule delays resulting from advanced technology or heritage assumptions for 6 D&NF missions. The goal was to identify the underlying causes for the overruns and delays, and to develop practical mitigations to assist the D&NF projects in identifying potential risks and controlling the associated impacts to proposed mission costs and schedules. The study found that the cost and schedule growth did not result from technical hurdles requiring significant technology development. Instead, systems engineering processes did not identify critical issues early enough in the design cycle to ensure project schedules and estimated costs address the inherent risks. In general, the overruns were traceable to: inadequate understanding of the heritage system s behavior within the proposed spacecraft design and mission environment; an insufficient level of experience with the heritage system; or an inadequate scoping of the system-wide impacts necessary to implement the heritage or advanced technology. This presentation summarizes the study s findings and offers suggestions for improving the project s ability to identify and manage the risks inherent in the technology and heritage design solution.

  6. Spreading, retention and clean-up of oil spills. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Wilson, Jr, M P

    1976-05-01

    This study reviews and assesses the technology of oil spill spreading, retention and cleanup and proposes research needs in these areas. Sources of oil spills are analyzed and the difficulty of gathering meaningful statistics is discussed. Barrier technology is reviewed and problem areas analyzed. Natural and forced biodegradation and natural and chemical dispersion of oil spills are considered. Research recommendations are categorized under the following two headings (1) Preventive techniques and (2) Containment, Cleanup and Dispersion.

  7. Historical research in the Hanford site waste cleanup

    International Nuclear Information System (INIS)

    This paper will acquaint the audience with role of historical research in the Hanford Site waste cleanup - the largest waste cleanup endeavor ever undertaken in human history. There were no comparable predecessors to this massive waste remediation effort, but the Hanford historical record can provide a partial road map and guide. It can be, and is, a useful tool in meeting the goal of a successful, cost-effective, safe and technologically exemplary waste cleanup. The Hanford historical record is rich and complex. Yet, it poses difficult challenges, in that no central and complete repository or data base exists, records contain obscure code words and code numbers, and the measurement systems and terminology used in the records change many times over the years. Still, these records are useful to the current waste cleanup in technical ways, and in ways that extend beyond a strictly scientific aspect. Study and presentations of Hanford Site history contribute to the huge educational and outreach tasks of helping the Site's work force deal with 'culture change' and become motivated for the cleanup work that is ahead, and of helping the public and the regulators to place the events at Hanford in the context of WWII and the Cold War. This paper traces historical waste practices and policies as they changed over the years at the Hanford Site, and acquaints the audience with the generation of the major waste streams of concern in Hanford Site cleanup today. It presents original, primary-source research into the waste history of the Hanford Site. The earliest, 1940s knowledge base, assumptions and calculations about radioactive and chemical discharges, as discussed in the memos, correspondence and reports of the original Hanford Site (then Hanford Engineer Works) builders and operators, are reviewed. The growth of knowledge, research efforts, and subsequent changes in Site waste disposal policies and practices are traced. Examples of the strengths and limitations of the

  8. The Effect of Computer Use in Science and Technology Lesson on Success and Attitude Towards

    OpenAIRE

    Cem O. Guzeller; Mustafa Dogru

    2011-01-01

    Problem statement: Computer being indispensable in our daily lives came into use in all fields of education. Use of computer for education activities became mandatory. This research is an experimental research performed by use of computer in science and technology and is important in terms of serving science education. General purpose of this research is to reveal the effect of computer-assisted teaching practice for subject of heat and temperature in primary school grade ...

  9. Technology Transfer in the Global Automotive Value Chain. Lessons from the Turkish Automotive Industry

    OpenAIRE

    M. Teoman Pamukçu; Alper Sönmez

    2011-01-01

    The automotive industry is one of the main contributors to value added, employment and exports of the Turkish economy and it has undergone major changes since the mid-nineties. Most of the automotive manufacturers in Turkey are either joint ventures or wholly-owned affiliates of multinational companies. Literature on global value chains point to the possibility of technology transfer occurring through backward linkages from automotive manufacturers to their suppliers. We test for the existenc...

  10. Beyond technology-push and demand-pull: Lessons from California's solar policy

    International Nuclear Information System (INIS)

    The scale of the technological transformation required to reduce greenhouse gas emissions to 'safe' levels while minimizing economic impacts necessitates an emphasis on designing climate policy to foster, or at least not impede, environmental innovation. There is only a weak empirical base for policy-makers to stand on regarding the comparative innovation effects of various climate policy options, however. Empirical scholarship in environmental innovation is hindered by the complexity of both the innovation process and the interactions between the dual market failures of pollution and innovation that are in play, and it appears that the field would benefit from the structure provided by a common lexicon. This paper focuses on the issues related to policy categorization in this field; these issues have received little attention in the literature despite their importance to making insights gained from empirical studies generalizable. The paper reviews the origins, strengths, and weaknesses of the dominant policy typology of technology-push versus demand-pull instruments. Its primary contribution, however, is to assemble a comprehensive chronology of solar policy in California and its impacts on innovation, where known, and then use this as a basis for building a new policy categorization that takes advantage of the intuitive resonance of the dominant typology, while encompassing the broader range of policy instruments that are employed in practice in order to stimulate environmental innovation. The most noteworthy aspect of the new categorization is that it introduces a third category of environmental innovation policy instrument that focuses on improving the interface between technology suppliers and users. This reflects developments in the economics of innovation literature as well as considerable evidence in the domain of distributed solar energy technologies that opportunism by some of the actors that work at this interface can be a barrier to innovation

  11. USING INFORMATION TECHNOLOGY AS A STRATEGIC WEAPON: LESSONS FROM THE RED BARON

    OpenAIRE

    Michael B. KNIGHT; David J. RADOSEVICH

    2011-01-01

    Organizations investing in information technology (IT) over the past decades have categorically seen the uses of IT change. At one point, IT was considered a key strategic tool to gain competitive advantage; however, today, acquiring basic IT functions is a necessity in order not to be at a competitive disadvantage. It takes advanced IT systems, coupled with good strategy to develop an IT competitive advantage. With good strategy and advanced IT systems, some organizations can use IT as a wea...

  12. Increasing synergies between institutions and technology developers: Lessons from marine energy

    OpenAIRE

    CORSATEA TEODORA

    2014-01-01

    This paper describes innovation activities in the marine energy sector across ten European countries in 2011. Intense knowledge creation occurred in the UK and northern European countries, while European research networks encouraged public-private partnerships facilitating knowledge diffusion. An analysis based on a technological innovation system (TIS) has identified challenges for the system to evolve from one phase of development to another, i.e. from pre-development to take-off phase. In ...

  13. A Proposal to Manage Lessons Learned in Projects: Web 2.0 Technologies to Promote Innovation

    OpenAIRE

    Chaves, Marcirio Silveira; Veronese, Giuliana Santos

    2014-01-01

    The web 2.0 is transforming the project management in organizations by improving communication and collaboration. The new generation of web-based collaborative tools provides much better experience than the traditional software package allowing document sharing, integrated task tracking, enforcing team processes and agile planning. Despite of the indubitable benefits brought by web 2.0, the use of these technologies to promote knowledge management remains unexplored. For many project managers...

  14. Platforms, Communities, and Business Ecosystems: Lessons Learned about Technology Entrepreneurship in an Interconnected World

    Directory of Open Access Journals (Sweden)

    Steven Muegge

    2013-02-01

    Full Text Available Technology entrepreneurs are increasingly building businesses that are deliberately anchored in platforms, communities, and business ecosystems. Nonetheless, actionable, evidence-based advice for technology entrepreneurs is scarce. Platforms, communities, and ecosystems are active areas of management research, but until recently, each has been studied in separate research programs, with results published in different venues, and often examined from the perspectives of incumbent managers or policy makers rather than entrepreneurs and new entrants. This article re-examines these phenomena from the perspective of technology entrepreneurs facing strategic choices about interconnected systems of platforms, communities, and business ecosystems, and decisions about the nature and extent of participation. It brings together insights from a wide range of published sources. For entrepreneurs, it provides an accessible introduction to what can be a complex topic, identifies a set of practical considerations to be accounted for in decision-making, and offers a guide for further reading. For researchers and graduate students seeking practical and high-impact research problems, it provides an entry point to the research literature and identifies gaps in the current body of knowledge, especially regarding the system-level interactions between subsystems.

  15. Technology penetration and capital stock turnover. Lessons from IEA scenario analysis

    Energy Technology Data Exchange (ETDEWEB)

    Philibert, C. [International Energy Agency IEA, Organisation for Economic Co-operation and Development OECD, Paris (France)

    2007-05-15

    The aim of this paper is to reflect on the significant differences between the emissions reductions projections in mid-term and long-term scenarios, and to explore their policy implications. It draws mainly on two recent IEA publications: the 2006 World Energy Outlook (WEO), which contains energy and energy-related CO2 projections up to 2030, and the 2006-published Energy Technology Perspectives (ETP), which considers scenarios and strategies up to 2050. The analysis focuses on a comparison of the Alternative Policy Scenario of the 2006 WEO, and the various Accelerated Technology (ACT) Scenarios in the ETP. The next section provides the necessary background on these two publications and their energy-related CO2 emissions by 2030 and 2050, respectively. The third section investigates in some more depth the reasons for the large differences in the amount of emission reductions at these dates. Capital stock turnover and technology maturation lead times, in particular, are identified as primary reasons for the differences. The fourth section suggests several possible policy conclusions that can be drawn from this analysis. They include thought pieces with respect to the action required in the short-term; to the necessity of long-term signals; to the advantages and limitations of short-term targets; and to the opportunities and challenges the international community faces with respect to emission reductions in developing countries.

  16. High Technology in Medicine: Lessons from Cardiovascular Innovations and Future Perspective

    Directory of Open Access Journals (Sweden)

    Rafael Beyar

    2013-04-01

    Full Text Available Four decades of innovations in the field of interventional cardiology are presented as an example for the great growth of high technology in medicine, side by side with the development of general technology and science. The field of percutaneous coronary intervention (PCI was enabled by the development of X-ray systems, allowing us to view the pathology, and was critically dependent on courageous and imaginative physicians and scientists who developed percutaneous transluminal coronary angioplasty (PTCA, stents, and transarterial aortic valve replacement (TAVR. Today, outstanding research continues to progress, with stem cell research and IPC technologies presenting new challenges and yet taller mountains to climb. The rapid development we have witnessed was due to tight collaborations between clinical and academic institutions and industry. The combination of all these elements, with a proper mechanism to handle conflict of interest, is an essential linkage for any progress in this field. We will continue to see exponential growth of innovations and must be prepared with appropriate bodies to encourage such developments and to provide early-stage funding and support for novel ideas.

  17. Technology policy for energy and climate change. Lessons from a retrospective of thirty years on research, development, and demonstration experiences

    International Nuclear Information System (INIS)

    . It explores in some depth the lessons of various historical experiences (1970 to present), mainly from the United States, regarding various programs and policies intended to spur technology development and adoption, including both successes and failures. (authors)

  18. Technology policy for energy and climate change. Lessons from a retrospective of thirty years on research, development, and demonstration experiences

    Energy Technology Data Exchange (ETDEWEB)

    Marlay, R.C.; Koske, B.H. [Office of Policy and International Affairs, U.S. Dept. of Energy, Washington, DC (United States)

    2005-08-15

    risk. It explores in some depth the lessons of various historical experiences (1970 to present), mainly from the United States, regarding various programs and policies intended to spur technology development and adoption, including both successes and failures. (authors)

  19. Increasing synergies between institutions and technology developers: Lessons from marine energy

    International Nuclear Information System (INIS)

    This paper describes innovation activities in the marine energy sector across ten European countries in 2011. Intense knowledge creation occurred in the UK and northern European countries, while European research networks encouraged public–private partnerships facilitating knowledge diffusion. An analysis based on a technological innovation system (TIS) has identified challenges for the system to evolve from one phase of development to another, i.e. from pre-development to take-off phase. In order for marine energy to pass successfully through the commercialisation ‘valley of death’, entrepreneurial experimentation and production is crucial. Entrepreneurial initiatives were developed mainly in the United Kingdom, Denmark, Norway and Ireland, whereas France, Germany and Sweden were active through venture capital initiatives. Additional system-builders, such as the authorities in charge of energy policies, could offer guidance for research, ensure legitimacy and effectively mobilise resources for system development. Although public support was efficient in stimulating private investment, national targets seemed less efficient in creating a long time horizon for private investors, due to consecutive, unexpected changes. In contrast, positive interactions between technology developers and policy-makers could empower market formation. Ultimately, the creation of a policy community, also involving local communities, could foster a positive environment for the development of innovation activities. - Highlights: • Intense knowledge creation takes place in the UK and in Nordic countries. • European research network facilitates knowledge diffusion between first and late movers. • Business opportunities are intensified by French, German and Swedish participants. • Public funding complements private research initiatives, especially in UK, Norway, Denmark and France. • Policy variations induce new risks on marine energy finance

  20. Advanced Remediation Technologies

    International Nuclear Information System (INIS)

    The United States Department of Energy (DOE), Office of Environmental Management (EM) is responsible for the cleanup of nation's nuclear weapons program legacy wastes, along with waste associated with nuclear energy programs and research. The EM cleanup efforts continue to progress, however the cleanup continues to be technologically complex, heavily regulated, long-term; and the effort also has a high life cycle cost estimate (LCCE) effort. Over the past few years, the EM program has undergone several changes to accelerate its cleanup efforts with varying degrees of success. This article will provide some insight into the Advanced Remediation Technologies (ART) projects that may enhance cleanup efforts and reduce life cycle costs. (authors)

  1. Radioactive Waste and Clean-up: Introduction

    International Nuclear Information System (INIS)

    The primary mission of the Radioactive Waste and Clean-up division is to propose, to develop and to evaluate solutions for a safe, acceptable and sustainable management of radioactive waste. The Radioactive Waste and Clean-up division programme consists in research, studies, development and demonstration aiming to realise the objective of Agenda 21 on sustainable development in the field of radioactive waste and rehabilitation on radioactively contaminated sites. Indeed, it participates in the realisation of an objective which is to ensure that radioactive wastes are safely managed, transported, stored and disposed of, with a view to protecting human health and the environment, within a wider framework of an interactive and integrated approach to radioactive waste management and safety. We believe that nuclear energy will be necessary for the sustainable development of mankind in the 21st century, but we well understand that it would not be maintained if it is not proven that within benefits of nuclear energy a better protection of the environment is included. Although the current waste management practices are both technically and from the environmental point of view adequate, efforts in relation of future power production and waste management technologies should be put on waste minimisation. Therefore, the new and innovative reactors, fuel cycle and waste management processes and installations should be designed so that the waste generation can be kept in minimum. In addition to the design, the installations should be operated so as to create less waste; consideration should be given e.g. to keeping water chemistry clean and other quality factors. SCK-CEN in general and the Radioactive Waste and Clean-up division in particular are present in international groups preparing the development of innovative nuclear reactors, as Generation 4 and INPRO. Because performance assessments are often black boxes for the public, demonstration is needed for the acceptation of

  2. Research Market Gap in Law Enforcement Technology: Lessons from Czech Security Research Funding Programmes

    Directory of Open Access Journals (Sweden)

    Luděk Moravec

    2014-12-01

    Full Text Available While security research funding schemes are nothing new to the EU (Horizon 2020 and FP7, or to several Member States, their priorities and procedures are usually decided administratively or shaped by advisory groups of varying membership. Only recently did the EU shift its focus to the role of end users in security research programmes, seeking their input in order to maximise the utility of funded solutions. Such a hint to limited usefulness of some industrial solutions is not exactly inconspicuous. This paper discusses the gap between the stated needs of law enforcement agencies in terms of R&D funding and the grant project applications in the area of law enforcement. It aims to define and describe the gap, and consequently the market opportunities, between the supply and demand sides represented by industry-driven grant project applications and end-user-formulated calls. The study is based on empirical data from two Czech security research funding programmes that have been running since 2010 and should deliver their results by 2015. It seeks to contribute some preliminary observations about the structure of both end user needs and industry capabilities in such a particular area as law enforcement technology.

  3. A history of the use of isotopic tracer technology in ruminant nutrition: Lessons for present research

    International Nuclear Information System (INIS)

    Isotopically labelled materials may be used to delineate metabolic pathways, but their major role in animal nutrition has been to provide quantitative data on the availability, utilization and turnover of nutrients in the whole animal and in defined tissues. the development of isotopic dilution procedures in the 1950s and 1960s made it possible to measure the inflows into body pools of the major energy yielding nutrients and amino acids. When 14C labelled substrates are used, rates of release of 14CO2 provide data on oxidative metabolism. The dynamics of nitrogen metabolism in the rumen have been defined in similar studies using 15N-ammonium sulphate, 15N-urea and 14C-urea. Studies in which isotope dilution procedures are combined with classical arteriovenous difference studies have provided comprehensive data on the uptake, oxidation and release of substrates in tissues which include the mammary gland, liver, hind limb skeletal muscle and brain. The same procedures have been used to measure protein turnover in the whole animal and in defined tissues. The application of new technology to the continuous measurement of both blood flow and blood oxygen content has made it possible to combine isotope dilution studies with the simultaneous measurement of energy expenditure in the whole animal and in defined tissues. The use of isotope dilution has yielded data which have led to improved efficiency of ruminant production, and identified areas which require more research effort, as indicated in the review. In particular, the use of isotopes has emphasized that nutrition today must be concerned more with matching nutrient availability to tissue requirements than with the metabolizable energy and crude protein content of feedstuffs, if the efficiency of livestock production is to be maximized. 78 refs

  4. Providing support for day-to-day monitoring of shoreline cleanup operations

    International Nuclear Information System (INIS)

    Experiences gained during the 'Cape Mohican' incident in October 1996, in San Francisco Bay, were recounted and proposed as a potential example of day-to-day monitoring, evaluation and reporting of shoreline cleanup effort. During this cleanup a set of communications procedures, progress reports and maps were developed which should be equally useful in other similar situations. The cartographic representations were specially highlighted as they focused on ways to provide a clear picture of the short term modifications in oiling conditions of the affected shoreline. The most important lesson learned from this oil spill was the importance of having personnel and equipment sufficiently matched to the task in order to evaluate oil conditions, produce cleanup recommendations, execute and communicate the status of the cleanup effort as fast, and as efficiently and effectively as possible. It was clearly demonstrated that unless the decision process is streamlined and supported with the best, most up-to-date information, the efforts of the cleanup team would be seriously undermined. 8 refs., 2 tabs., 6 figs

  5. Lessons Learned from Three Mile Island Packaging, Transportation and Disposition that Apply to Fukushima Daiichi Recovery

    Energy Technology Data Exchange (ETDEWEB)

    Layne Pincock; Wendell Hintze; Dr. Koji Shirai

    2012-07-01

    Following the massive earthquake and resulting tsunami damage in March of 2011 at the Fukushima Daiichi nuclear power plant in Japan, interest was amplified for what was done for recovery at the Three Mile Island Unit 2 (TMI-2) in the United States following its meltdown in 1979. Many parallels could be drawn between to two accidents. This paper presents the results of research done into the TMI-2 recovery effort and its applicability to the Fukushima Daiichi cleanup. This research focused on three topics: packaging, transportation, and disposition. This research work was performed as a collaboration between Japan’s Central Research Institute of Electric Power Industry (CRIEPI) and the Idaho National Laboratory (INL). Hundreds of TMI-2 related documents were searched and pertinent information was gleaned from these documents. Other important information was also obtained by interviewing employees who were involved first hand in various aspects of the TMI-2 cleanup effort. This paper is organized into three main sections: (1) Transport from Three Mile Island to Central Facilities Area at INL, (2) Transport from INL Central Receiving Facility to INL Test Area North (TAN) and wet storage at TAN, and (3) Transport from TAN to INL Idaho Nuclear Technology and Engineering Center (INTEC) and Dry Storage at INTEC. Within each of these sections, lessons learned from performing recovery activities are presented and their applicability to the Fukushima Daiichi nuclear power plant cleanup are outlined.

  6. Overview of established and emerging treatment technologies for polycyclic aromatic hydrocarbons at wood preserving facilities

    International Nuclear Information System (INIS)

    The contamination of soil and groundwater by polycyclic aromatic hydrocarbons (PAHs) is common to wood preserving facilities and manufactured gas plants. Since the inception of RCRA and CERCLA, much attention has been focused upon the remediation of both active and defunct wood preserving facilities. The experiences gleaned from the use of proven technologies, and more importantly, the lessons being learned in the trials of emerging technologies on creosote-derived PAH clean-ups at wood preserving sites, should have direct bearing on the clean-up of similar contaminants at MGP sites. In this paper, a review of several remedial actions using waste removal/disposal, on-site incineration, and bioremediation will be presented. Additionally, emerging technologies for the treatment of PAH-contaminated soil and water will be reviewed. Lastly, recent information on risk assessment results for creosote sites and treated PAH waste will be discussed

  7. Hanford: A Conversation About Nuclear Waste and Cleanup

    International Nuclear Information System (INIS)

    The author takes us on a journey through a world of facts, values, conflicts, and choices facing the most complex environmental cleanup project in the United States, the U.S. Department of Energy's Hanford Site. Starting with the top-secret Manhattan Project, Hanford was used to create tons of plutonium for nuclear weapons. Hundreds of tons of waste remain. In an easy-to-read, illustrated text, Gephart crafts the story of Hanford becoming the world's first nuclear weapons site to release large amounts of contaminants into the environment. This was at a time when radiation biology was in its infancy, industry practiced unbridled waste dumping, and the public trusted what it was told. The plutonium market stalled with the end of the Cold War. Public accountability and environmental compliance ushered in a new cleanup mission. Today, Hanford is driven by remediation choices whose outcomes remain uncertain. It's a story whose epilogue will be written by future generations. This book is an information resource, written for the general reader as well as the technically trained person wanting an overview of Hanford and cleanup issues facing the nuclear weapons complex. Each chapter is a topical mini-series. It's an idea guide that encourages readers to be informed consumers of Hanford news, to recognize that knowledge, high ethical standards, and social values are at the heart of coping with Hanford's past and charting its future. Hanford history is a window into many environmental conflicts facing our nation; it's about building upon success and learning from failure. And therein lies a key lesson, when powerful interests are involved, no generation is above pretense. Roy E. Gephart is a geohydrologist and senior program manager at the Pacific Northwest National Laboratory, Richland, Washington. He has 30 years experience in environmental studies and the nuclear waste industry

  8. Lessons Learned from FUSRAP

    Energy Technology Data Exchange (ETDEWEB)

    Castillo, Darina [U.S. Department of Energy, Office of Legacy Management; Carpenter, Cliff [U.S. Department of Energy, Office of Legacy Management; Miller, Michele [Navarro Research and Engineering

    2016-03-06

    The US DOE Office of Legacy Management (LM) is the long-term steward for 90 sites remediated under numerous regulatory regimes including the Formerly Utilized Sites Remedial Action Program (FUSRAP) sites. In addition, LM holds considerable historical information, gathered in the 1970s, to determine site eligibility for remediation under FUSRAP. To date, 29 FUSRAP sites are in LM’s inventory of sites for long-term surveillance and maintenance (LTS&M), and 25 are with the US Army Corps of Engineers (USACE) for remediation or in the process of being transitioned to LM. It is forecasted that 13 FUSRAP sites will transfer from the USACE to LM over the next 10 years; however, the timing of the transfers is strongly dependent upon federal funding of the ongoing remedial actions. Historically, FUSRAP sites were generally cleaned up for “unrestricted” industrial use or remediated to the “cleanup standards” at that time, and their use remained unchanged. Today, these sites as well as the adjacent properties are now changing or envisioned to have changes in land use, typically from industrial to commercial or residential uses. The implication of land-use change affects DOE’s LTS&M responsibility for the sites under LM stewardship as well as the planning for the additional sites scheduled to transition in time. Coinciding with land-use changes at or near FUSRAP sites is an increased community awareness of these sites. As property development increases near FUSRAP sites, the general public and interested stakeholders regularly inquire about the sufficiency of cleanups that impact their neighborhoods and communities. LM has used this experience to address a series of lessons learned to improve our program management in light of the changing conditions of our sites. We describe these lessons learned as (1) improved stakeholder relations, (2) enhanced LTS&M requirements for the sites, and (3) greater involvement in the transition process.

  9. Enhancing aquifer cleanup with reinjection

    International Nuclear Information System (INIS)

    Injection of water or steam, with or without chemical surfactants, is a common petroleum industry technique to enhance product recovery. In the geothermal industry, reinjection (reinjection is used to mean the injection of ground water that was previously injected) of heat- depleted subsurface fluids is commonly used to maintain reservoir pressure, thus prolonging field productivity. The use reinjection in ground-water remediation projects allows for the application of both traditional production field management and a variety of additional enhancements to the cleanup process. Development of the ideas in this paper was stimulated by an initial suggestion by Dr. Jacob Bear (personal discussions, 1990--1991) that reinjected water might be heated to aid the desorption process

  10. HANFORD SITE RIVER CORRIDOR CLEANUP

    International Nuclear Information System (INIS)

    In 2005, the US Department of Energy (DOE) launched the third generation of closure contracts, including the River Corridor Closure (RCC) Contract at Hanford. Over the past decade, significant progress has been made on cleaning up the river shore that bordes Hanford. However, the most important cleanup challenges lie ahead. In March 2005, DOE awarded the Hanford River Corridor Closure Contract to Washington Closure Hanford (WCH), a limited liability company owned by Washington Group International, Bechtel National and CH2M HILL. It is a single-purpose company whose goal is to safely and efficiently accelerate cleanup in the 544 km2 Hanford river corridor and reduce or eliminate future obligations to DOE for maintaining long-term stewardship over the site. The RCC Contract is a cost-plus-incentive-fee closure contract, which incentivizes the contractor to reduce cost and accelerate the schedule. At $1.9 billion and seven years, WCH has accelerated cleaning up Hanford's river corridor significantly compared to the $3.2 billion and 10 years originally estimated by the US Army Corps of Engineers. Predictable funding is one of the key features of the new contract, with funding set by contract at $183 million in fiscal year (FY) 2006 and peaking at $387 million in FY2012. Another feature of the contract allows for Washington Closure to perform up to 40% of the value of the contract and subcontract the balance. One of the major challenges in the next few years will be to identify and qualify sufficient subcontractors to meet the goal

  11. Options for improving hazardous waste cleanups using risk-based criteria

    International Nuclear Information System (INIS)

    This paper explores how risk- and technology-based criteria are currently used in the RCRA and CERCLA cleanup programs. It identifies ways in which risk could be further incorporated into RCRA and CERCLA cleanup requirements and the implications of risk-based approaches. The more universal use of risk assessment as embodied in the risk communication and risk improvement bills before Congress is not addressed. Incorporating risk into the laws and regulations governing hazardous waste cleanup, will allow the use of the best scientific information available to further the goal of environmental protection in the United States while containing costs. and may help set an example for other countries that may be developing cleanup programs, thereby contributing to enhanced global environmental management

  12. NHC's contribution to cleanup of the Hanford Site

    International Nuclear Information System (INIS)

    The one billion dollars per year Project Hanford Management Contract (PHMC), managed by Fluor Daniel Hanford, calls for cleanup of the Hanford Site for the Department of Energy. Project Hanford comprises four major subprojects, each managed by a different major contractor. Numatec Hanford Corporation (NHC) is a fifth major subcontractor which provides energy and technology to each of the Hanford projects. NHC draws on the experience and capabilities of its parent companies, COGEMA and SGN, and relies on local support from its sister Company in Richland, COGEMA Engineering Corporation, to bring the best commercial practices and new technology to the Project

  13. HANFORD SITE CENTRAL PLATEAU CLEANUP COMPLETION STRATEGY

    Energy Technology Data Exchange (ETDEWEB)

    BERGMAN TB

    2011-01-14

    Cleanup of the Hanford Site is a complex and challenging undertaking. The U.S. Department of Energy (DOE) has developed a comprehensive vision for completing Hanford's cleanup mission including transition to post-cleanup activities. This vision includes 3 principle components of cleanup: the {approx}200 square miles ofland adjacent to the Columbia River, known as the River Corridor; the 75 square miles of land in the center of the Hanford Site, where the majority of the reprocessing and waste management activities have occurred, known as the Central Plateau; and the stored reprocessing wastes in the Central Plateau, the Tank Wastes. Cleanup of the River Corridor is well underway and is progressing towards completion of most cleanup actions by 2015. Tank waste cleanup is progressing on a longer schedule due to the complexity of the mission, with construction of the largest nuclear construction project in the United States, the Waste Treatment Plant, over 50% complete. With the progress on the River Corridor and Tank Waste, it is time to place increased emphasis on moving forward with cleanup of the Central Plateau. Cleanup of the Hanford Site has been proceeding under a framework defmed in the Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement). In early 2009, the DOE, the State of Washington Department of Ecology, and the U.S. Environmental Protection Agency signed an Agreement in Principle in which the parties recognized the need to develop a more comprehensive strategy for cleanup of the Central Plateau. DOE agreed to develop a Central Plateau Cleanup Completion Strategy as a starting point for discussions. This DOE Strategy was the basis for negotiations between the Parties, discussions with the State of Oregon, the Hanford Advisory Board, and other Stakeholder groups (including open public meetings), and consultation with the Tribal Nations. The change packages to incorporate the Central Plateau Cleanup Completion Strategy were

  14. Depending on International Research Data Teaching Practices in Science and Technology Lessons in Primary Schools in Turkey

    OpenAIRE

    YILDIRIM, Kamil

    2011-01-01

    This study aims at describing teaching practices in science lessons by using large scale international studies namely PISA 2006, TIMSS 2007 and TALIS 2008. This study specifically tries to answer the following questions: Which teaching practices are used? What are the most frequently preferred teaching practices? Data used in the study were obtained from the international data source of PISA, TIMSS and TALIS. According to findings the most frequently preferred teaching methods are asking ques...

  15. Particulate hot gas stream cleanup technical issues

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-09-01

    This is the tenth in a series of quarterly reports describing the activities performed under Contract No. DE-AC21-94MC31160. Analyses of Hot Gas Stream Cleanup (HGCU) ashes and descriptions of filter performance address aspects of filter operation that are apparently linked to the characteristics of the collected ash or the performance of the ceramic bed filter elements. Task I is designed to generate a data base of the key characteristics of ashes collected from operating advanced particle filters (APFS) and to relate these ash properties to the operation and performance of these filters. Task 2 concerns testing and failure analysis of ceramic filter elements. Under Task I during the past quarter, analyses were performed on a particulate sample from the Transport Reactor Demonstration Unit (TRDU) located at the University of North Dakota Energy and Environmental Research Center. Analyses are in progress on ash samples from the Advanced Particulate Filter (APF) at the Pressurized Fluidized-Bed Combustor (PFBC) that was in operation at Tidd and ash samples from the Pressurized Circulating Fluid Bed (PCFB) system located at Karhula, Finland. A site visit was made to the Power Systems Development Facility (PSDF) to collect ash samples from the filter vessel and to document the condition of the filter vessel with still photographs and videotape. Particulate samples obtained during this visit are currently being analyzed for entry into the Hot Gas Cleanup (HGCU) data base. Preparations are being made for a review meeting on ash bridging to be held at Department of Energy Federal Energy Technology Center - Morgantown (DOE/FETC-MGN) in the near future. Most work on Task 2 was on hold pending receipt of additional funds; however, creep testing of Schumacher FT20 continued. The creep tests on Schumacher FT20 specimens just recently ended and data analysis and comparisons to other data are ongoing. A summary and analysis of these creep results will be sent out shortly. Creep

  16. Increased leukemia risk in Chernobyl cleanup workers

    Science.gov (United States)

    A new study found a significantly elevated risk for chronic lymphocytic leukemia among workers who were engaged in recovery and clean-up activities following the Chernobyl power plant accident in 1986.

  17. Nuclear radiation cleanup and uranium prospecting

    Energy Technology Data Exchange (ETDEWEB)

    Mariella, Jr., Raymond P.; Dardenne, Yves M.

    2016-02-02

    Apparatus, systems, and methods for nuclear radiation cleanup and uranium prospecting include the steps of identifying an area; collecting samples; sample preparation; identification, assay, and analysis; and relating the samples to the area.

  18. Assessment, Cleanup and Redevelopment Exchange System (ACRES)

    Data.gov (United States)

    U.S. Environmental Protection Agency — The Assessment, Cleanup and Redevelopment Exchange System (ACRES) is an online database for Brownfields Grantees to electronically submit data directly to EPA.

  19. Rocky Flats Cleanup Agreement implementation successes and challenges

    International Nuclear Information System (INIS)

    On July 19, 1996 the US Department of Energy (DOE), State of Colorado (CDPHE), and US Environmental Protection Agency (EPA) entered into an agreement called the Rocky Flats Cleanup Agreement (RFCA) for the cleanup and closure of the Rocky Flats Environmental Technology Site (RFETS or Rocky Flats). Major elements of the agreement include: an Integrated Site-Wide Baseline; up to twelve significant enforceable milestones per year; agreed upon soil and water action levels and standards for cleanup; open space as the likely foreseeable land use; the plutonium and TRU waste removed by 2015; streamlined regulatory process; agreement with the Defense Nuclear Facilities Safety Board (DNFSB) to coordinate activities; and a risk reduction focus. Successful implementation of RFCA requires a substantial effort by the parties to change their way of thinking about RFETS and meet the deliverables and commitments. Substantial progress toward Site closure through the implementation of RFCA has been accomplished in the short time since the signing, yet much remains to be done. Much can be learned from the Rocky Flats experience by other facilities in similar situations

  20. Bioavailability: implications for science/cleanup policy

    Energy Technology Data Exchange (ETDEWEB)

    Denit, Jeffery; Planicka, J. Gregory

    1998-12-01

    This paper examines the role of bioavailability in risk assessment and cleanup decisions. Bioavailability refers to how chemicals ''behave'' and their ''availability'' to interact with living organisms. Bioavailability has significant implications for exposure risks, cleanup goals, and site costs. Risk to human health and the environment is directly tied to the bioavailability of the chemicals of concern.

  1. Lesson on Demand. Lesson Plan.

    Science.gov (United States)

    Weaver, Sue

    This lesson plan helps students understand the role consumer demand plays in the market system, i.e., how interactions in the marketplace help determine pricing. Students will participate in an activity that demonstrates the concepts of demand, demand schedule, demand curve, and the law of demand. The lesson plan provides student objectives;…

  2. Air stripping of volatile organic chlorocarbons: System development, performance, and lessons learned (U)

    International Nuclear Information System (INIS)

    The Savannah River Site, which has been in operation since the 1950's, is a 780-square kilometer reservation that produces tritium for the national defense program. As a result of past waste handling practices, the ground water at several locations on the Site has become contaminated with solvents, metals, and radionuclides. In 1981, the ground water located under the Site's fuel and target rod fabrication area (M-Area) was found to be contaminated with degreasing solvents, specifically trichloroethylene (TCE) and tetrachloroethylene (PCE). In 1983, a program was started to evaluate air stripping and determine its applicability to cleanup of M-Area contamination. Lessons learned regarding the efficiency and effectiveness of air stripping technology are presented

  3. Debating the Desirability of New Biomedical Technologies: Lessons from the Introduction of Breast Cancer Screening in the Netherlands

    OpenAIRE

    Boenink, M.

    2011-01-01

    Health technology assessment (HTA) was developed in the 1970s and 1980s to facilitate decision making on the desirability of new biomedical technologies. Since then, many of the standard tools and methods of HTA have been criticized for their implicit normativity. At the same time research into the character of technology in practice has motivated philosophers, sociologists and anthropologists to criticize the traditional view of technology as a neutral instrument designed to perform a specif...

  4. The MEGAPIE-TEST project: Supporting research and lessons learned in first-of-a-kind spallation target technology

    International Nuclear Information System (INIS)

    The megawatt pilot experiment (MEGAPIE) has been launched by six European institutions (PSI, FZK, CEA, SCK-CEN, ENEA and CNRS), JAEA (Japan), DOE (US) and KAERI (Korea) with the aim to carry out an experiment, in the SINQ target location at PSI (Switzerland), to demonstrate the safe operation of a liquid metal (lead-bismuth eutectic, LBE) spallation target hit by a ∼1 MW proton beam. The European Commission has joined the MEGAPIE project through the 5-year (2001-2006) project named MEGAPIE-TEST. This project has been formally concluded with an International Workshop, where the results and the lessons learned during the project have been summarised. This work presents a review of the outcome of that Workshop

  5. EBR-II cover-gas cleanup system upgrade

    International Nuclear Information System (INIS)

    Technology advances in the past few years have prompted an effort at Argonne National Laboratory to replace existing equipment with high-performance digital computers and color-graphic displays. Improved operation of process systems can be achieved by utilizing state-of-the-art computer technology in the areas of process control and process monitoring. The cover-gas cleanup system (CGCS) at the Experimental Breeder Reactor II (EBR-II) is the first system to be upgraded with high-performance digital equipment. The upgrade consisted of a main control computer, a distributed control computer, a front-end input/output computer, a main graphics interface terminal, and a remote graphics interface terminal. This paper describes the main control computer and the operator interface control software. Argonne National Laboratory's EBR-II is a pool-type nuclear reactor demonstration facility that uses liquid sodium as the primary system and secondary system coolant. The primary system tank contains ∼330000 ell of liquid sodium blanketed with an argon cover gas. Despite this inert atmosphere, the primary system requires a cover-gas monitoring and cleanup system, the CGCS. The CGCS maintains low levels of impurities in the cover gas so that even small levels of impurities can be detected to flag a failed fuel element and to support mass spectrometer analysis to identify a failed fuel element. Impurities can be introduced to the argon cover gas by the failure of fuel element cladding and the subsequent release of gaseous fission products or xenon open-quotes tag gasclose quotes placed in the fuel elements for the purpose of signaling a fuel element breach. The CGCS consists of a main cleanup loop and a gas analysis system

  6. Retroactive insurance may fund TMI-2 cleanup

    International Nuclear Information System (INIS)

    A Pennsylvania task force recommended that nuclear utilities insure their plants with a mandatory national property insurance program. The proposed Nuclear Powerplant Property Damage Insurance Act of 1981 will cover the cleanup costs of onsite damage in excess of $350 million for a single accident ($50 million when private insurance is added on) and a ceiling of two billion dollars. Participation in the insurance pool would be in conjunction with licensing and would permit no grandfathering. Total payout for Three Mile Island-2 would cover 75% of the cleanup costs, the remainder to be apportioned among other parties. The insurance pool will have a $750 million goal supported by utility premiums

  7. Use of decision analysis techniques to determine Hanford cleanup priorities

    International Nuclear Information System (INIS)

    In January 1991, the U.S. Department of Energy (DOE) Richland Field Office, Westinghouse Hanford Company, and the Pacific Northwest Laboratory initiated the Hanford Integrated Planning Process (HIPP) to ensure that technically sound and publicly acceptable decisions are made that support the environmental cleanup mission at Hanford. One of the HIPP's key roles is to develop an understanding of the science and technology (S and T) requirements to support the cleanup mission. This includes conducting an annual systematic assessment of the S and T needs at Hanford to support a comprehensive technology development program and a complementary scientific research program. Basic to success is a planning and assessment methodology that is defensible from a technical perspective and acceptable to the various Hanford stakeholders. Decision analysis techniques were used to help identify and prioritize problems and S and T needs at Hanford. The approach used structured elicitations to bring many Hanford stakeholders into the process. Decision analysis, which is based on the axioms and methods of utility and probability theory, is especially useful in problems characterized by uncertainties and multiple objectives. Decision analysis addresses uncertainties by laying out a logical sequence of decisions, events, and consequences and by quantifying event and consequence probabilities on the basis of expert judgments

  8. Firms vie to offer DOE a prize-winning recipe for cleanup

    Energy Technology Data Exchange (ETDEWEB)

    Powers, M.B.

    1994-04-25

    Eager to get the most bang for its waste cleanup bucks, the US Department of Energy is conducting its own version of the Pillsbury bake-off. DOE is pitting two environmental contractors, Rust International Corp. and Lockheed Environmental Systems and Technologies Co., against each other to come up with the prize-winning recipe for cleaning up some nasty waste problems.

  9. Firms vie to offer DOE a prize-winning recipe for cleanup

    International Nuclear Information System (INIS)

    Eager to get the most bang for its waste cleanup bucks, the US Department of Energy is conducting its own version of the Pillsbury bake-off. DOE is pitting two environmental contractors, Rust International Corp. and Lockheed Environmental Systems and Technologies Co., against each other to come up with the prize-winning recipe for cleaning up some nasty waste problems

  10. Final report: Fuel spill cleanup at the Del Air Unit

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes the cleanup of a fuel spill on the Delair Unit of Great River NWR in 1994. Soil test results are provided, the cleanup process is summarized,...

  11. Fuel cleanup system for the tritium systems test assembly: design and experiments

    Energy Technology Data Exchange (ETDEWEB)

    Kerr, E.C.; Bartlit, J.R.; Sherman, R.H.

    1980-01-01

    A major subsystem of the Tritium Systems Test Assembly is the Fuel Cleanup System (FCU) whose functons are to: (1) remove impurities in the form of argon and tritiated methane, water, and ammonia from the reactor exhaust stream and (2) recover tritium for reuse from the tritiated impurities. To do this, a hybrid cleanup system has been designed which utilizes and will test concurrently two differing technologies - one based on disposable, hot metal (U and Ti) getter beds and a second based on regenerable cryogenic asdorption beds followed by catalytic oxidation of impurities to DTO and stackable gases and freezout of the resultant DTO to recover essentially all tritium for reuse.

  12. Debating the desirability of new biomedical technologies: Lessons from the introduction of breast cancer screening in the Netherlands.

    NARCIS (Netherlands)

    Boenink, M.

    2012-01-01

    Health technology assessment (HTA) was developed in the 1970s and 1980s to facilitate decision making on the desirability of new biomedical technologies. Since then, many of the standard tools and methods of HTA have been criticized for their implicit normativity. At the same time research into the

  13. Teachers' Views about Science and Technology Lesson Effects on the Development of Students' Entrepreneurship Skills

    Science.gov (United States)

    Bacanak, Ahmet

    2013-01-01

    The purpose of this study was to determine the views of science and technology teachers about the effects of 6th, 7th and 8th grade science and technology courses on students' entrepreneurship skills. In the study, phenomenographic method was used and data were collected through a semi-structured interview method with 8 questions. 5 science…

  14. Evaluation of contaminated groundwater cleanup objectives

    International Nuclear Information System (INIS)

    The US Department of Energy's (DOE's) Environmental Restoration Program will be responsible for remediating the approximately 230 contaminated groundwater sites across the DOE Complex. A major concern for remediation is choosing the appropriate cleanup objective. The cleanup objective chosen will influence the risk to the nearby public during and after remediation; risk to remedial and non-involved workers during remediation; and the cost of remediation. This paper discusses the trends shown in analyses currently being performed at Oak Ridge National Laboratories' (ORNL's) Center for Risk Management (CRM). To evaluate these trends, CRM is developing a database of contaminated sites. This paper examines several contaminated groundwater sites selected for assessment from CRM's data base. The sites in this sample represent potential types of contaminated groundwater sites commonly found at an installation within DOE. The baseline risk from these sites to various receptors is presented. Residual risk and risk during remediation is reported for different cleanup objectives. The cost associated with remediating to each of these objectives is also estimated for each of the representative sites. Finally, the general trends of impacts as a function of cleanup objective will be summarized. The sites examined include the Savannah River site, where there was substantial ground pollution from radionuclides, oil, coal stockpiles, and other forms of groundwater contamination. The effects of various types of groundwater contamination on various types of future user is described. 4 refs., 3 figs., 2 tabs

  15. Radioactive Waste and Clean-up Division

    International Nuclear Information System (INIS)

    The main objectives of the Radioactive Waste and Clean-up division of SCK-CEN are outlined. The division's programme consists of research, development and demonstration projects and aims to contribute to the objectives of Agenda 21 on sustainable development in the field of radioactive waste and rehabilitation of radioactively contaminated sites

  16. Lessons learned from the preclosure performance assessment review of the Fluor Technology, Inc., draft site characterization plan conceptual design report

    International Nuclear Information System (INIS)

    This report presents the lessons learned from the preclosure performance assessment review (PAR) of the Draft Site Characterization Plan---Conceptual Design Report (SCP-CDR). The PAR analyzes the operations of the waste handling facilities as presented in the SCP-CDR against appropriate regulatory and design criteria. The PAR applies to the design presented in a working draft released in April, 1986. We will analyze the design presented in the SCP-CDR, the other is to test safety assessment methods and tools. This report addresses only the second of these objectives. The PAR analysis consists of assessments of offsite and occupational doses resulting from routine and accidental events during preclosure operations at the repository. The activities related to the PAR are divided into subject areas. These areas include (1) the description of repository facilities and operations, (2) the development of radioactive material inventories and radiation dose rates, (3) the development of radioactive material-release scenarios and source terms, (4) the assessment of offsite dose equivalents, and (5) the assessment of occupational radiation dose equivalents. This report contains a summary of the analyses in these fives areas and lists those preclosure analyses not performed as part of the PAR. Chapters detail the strengths and weaknesses of each analysis and include recommendations for improving the analyses. 15 refs., 1 fig., 1 tab

  17. Cleanups In My Community (CIMC) - Recovery Act Funded Cleanups, National Layer

    Data.gov (United States)

    U.S. Environmental Protection Agency — This data layer provides access to Recovery Act Funded Cleanup sites as part of the CIMC web service. The American Recovery and Reinvestment Act was signed into law...

  18. Lessons Learned

    International Nuclear Information System (INIS)

    The examples of lessons learned comprise an outline of the problems encountered at the nuclear facilities involved. The situations are typical of the difficulties that can arise when planning or implementing a decommissioning project for a small facility. Although the information is not intended to be exhaustive, the reader is encouraged to evaluate the applicability of the lessons learned to a specific decommissioning project. The general categories of problem and the relevant section in which they are discussed are shown. One should also note that in almost all cases the lack/inadequacy of construction or operational records contributed to the seriousness of the reported occurrences.

  19. The use of technology enhanced learning in health research capacity development: lessons from a cross country research partnership.

    OpenAIRE

    Byrne, Elaine; Donaldson, L.; Manda-Taylor, L.; Brugha, Ruairi; Matthews, A; Macdonald, S.; Mwapasa, V.; Petersen, M.; Walsh, A.

    2016-01-01

    BACKGROUND: With the recognition of the need for research capacity strengthening for advancing health and development, this research capacity article explores the use of technology enhanced learning in the delivery of a collaborative postgraduate blended Master's degree in Malawi. Two research questions are addressed: (i) Can technology enhanced learning be used to develop health research capacity?, and: (ii) How can learning content be designed that is transferrable across different contexts...

  20. The use of technology enhanced learning in health research capacity development: lessons from a cross country research partnership

    OpenAIRE

    Byrne, E; Donaldson, L.; Manda-Taylor, L.; Brugha, R.; Matthews, A; Macdonald, S.; Mwapasa, V.; Petersen, M.; Walsh, A.

    2016-01-01

    Background With the recognition of the need for research capacity strengthening for advancing health and development, this research capacity article explores the use of technology enhanced learning in the delivery of a collaborative postgraduate blended Master’s degree in Malawi. Two research questions are addressed: (i) Can technology enhanced learning be used to develop health research capacity?, and: (ii) How can learning content be designed that is transferrable across different contexts?...

  1. Bringing psychosocial support to headache sufferers using information and communication technology: Lessons learned from asking potential users what they want

    OpenAIRE

    Huguet, Anna; Stinson, Jennifer; MacKay, Bonnie; Watters, Carolyn; Tougas, Michelle; White, Meghan; McGrath, Patrick J.

    2014-01-01

    BACKGROUND: Headaches are a major concern for which psychosocial interventions are recommended. However, headache sufferers do not always have ready access to these interventions. Technology has been used to improve access, especially in young people.OBJECTIVES: To examine user preferences to inform the development of an Internet-based psychosocial intervention including smartphone technology, referred to as the Wireless Headache Intervention.METHODS: The methodology followed a participatory ...

  2. Bringing Psychosocial Support to Headache Sufferers Using Information and Communication Technology: Lessons Learned from Asking Potential Users What they Want

    OpenAIRE

    Anna Huguet; Jennifer Stinson; Bonnie MacKay; Carolyn Watters; Michelle Tougas; Meghan White; McGrath, Patrick J.

    2014-01-01

    BACKGROUND: Headaches are a major concern for which psychosocial interventions are recommended. However, headache sufferers do not always have ready access to these interventions. Technology has been used to improve access, especially in young people.OBJECTIVES: To examine user preferences to inform the development of an Internet-based psychosocial intervention including smartphone technology, referred to as the Wireless Headache Intervention.METHODS: The methodology followed a participatory ...

  3. Instructing ICT Lessons in Primary Schools: Teachers' Opinions and Applications

    Science.gov (United States)

    Akbiyik, Cenk; Seferoglu, S. Sadi

    2012-01-01

    Regarding the use of information and communication technologies, acquiring basic knowledge and skills has become a necessity. Schools offer ICT lessons to young generations in order to enable them to use of ICTs effectively. But there are uncertainties about this relatively new lesson concerning effectiveness of the lesson and about how…

  4. Environmental Remediation Technologies Derived from Space Industry Research

    Science.gov (United States)

    Quinn, Jacqueline; Sauser, Brian; Helminger, Andrew

    2004-01-01

    Beginning in the 1950s and 1960s, an abundance of effort and initiative was focused on propelling the space industry outward for planetary exploration and habitation. During these early years, the push to take space science to new levels indirectly contributed to the evolution of another science field that would not fully surface until the early 1980s, environmental remediation. This field is associated with the remediation or cleanup of environmental resources such as groundwater, soil, and sediment. Because the space-exploration initiative began prior to the establishment of the U.S. Environmental Protection Agency (EPA) in December of 1970, many NASA Centers as well as space-related support contractors allowed for the release of spent chemicals into the environment. Subsequently, these land owners have been directed by the EPA to responsibly initiate cleanup of their impacted sites. This paper will focus on the processes and lessons learned with the development, testing, and commercialization initiatives associated with four remediation technologies. The technologies include installation techniques for permeable reactive barriers (PRBs), the use of ultrasound to improve long-term performance of PRBs, emulsified zero-valent iron for product-level solvent degradation, and emulsion technologies for application to metal and polychlorinated biphenyl contaminated media. Details of the paper cover technology research, evaluation, and testing; contracts and grants; and technology transfer strategies including patenting, marketing, and licensing.

  5. Do Science and Technology Teachers and Pre-Service Primary Teachers Have Different Thoughts about Concept Maps in Science and Technology Lessons?

    Science.gov (United States)

    Karakuyu, Yunus

    2011-01-01

    The purpose of this study is to determine the thoughts of primary science and technology teachers, primary class teachers, pre-service primary class teachers and pre-service primary science and technology teachers' about concept maps. This scale applied the use of basic and random method on the chosen 125 4th and 5th grade primary class teachers…

  6. The Fernald Closure Project: Lessons Learned

    International Nuclear Information System (INIS)

    For nearly 37 years, the U.S. Department of Energy site at Fernald - near Cincinnati, Ohio - produced 230,000 metric tons (250,000 short tons) of high-purity, low-enriched uranium for the U.S. Defense Program, generating more than 5.4 million metric tons (6 million short tons) of liquid and solid waste as it carried out its Cold War mission. The facility was shut down in 1989 and clean up began in 1992, when Fluor won the contract to clean up the site. Cleaning up Fernald and returning it to the people of Ohio was a $4.4 billion mega environmental-remediation project that was completed in October 2006. Project evolved through four phases: - Conducting remedial-investigation studies to determine the extent of damage to the environment and groundwater at, and adjacent to, the production facilities; - Selecting cleanup criteria - final end states that had to be met that protect human health and the environment; - Selecting and implementing the remedial actions to meet the cleanup goals; - Executing the work in a safe, compliant and cost-effective manner. In the early stages of the project, there were strained relationships - in fact total distrust - between the local community and the DOE as a result of aquifer contamination and potential health effects to the workers and local residents. To engage citizens and interested stakeholders groups in the decision-making process, the DOE and Fluor developed a public-participation strategy to open the channels of communication with the various parties: site leadership, technical staff and regulators. This approach proved invaluable to the success of the project, which has become a model for future environmental remediation projects. This paper will summarize the history and shares lessons learned: the completion of the uranium-production mission to the implementation of the Records of Decision defining the cleanup standards and the remedies achieved. Lessons learned fall into ten categories: - Regulatory approach with end

  7. Curious minds in the classroom : The influence of video feedback coaching for teachers in science and technology lessons

    NARCIS (Netherlands)

    Wetzels, Anna

    2015-01-01

    Science and technology (S & T) play an important role in society, because every citizen needs a certain basic understanding of S & T to participate in the public debate, for example, in discussions with regard to topics such as climate change and gene manipulation. This thesis describes how video fe

  8. Debunking the Computer Science Digital Library: Lessons Learned in Collection Development at Seneca College of Applied Arts & Technology

    Science.gov (United States)

    Buczynski, James Andrew

    2005-01-01

    Developing a library collection to support the curriculum of Canada's largest computer studies school has debunked many myths about collecting computer science and technology information resources. Computer science students are among the heaviest print book and e-book users in the library. Circulation statistics indicate that the demand for print…

  9. D and D progress at United States Department of Energy sites: Practical implementation of lessons learned from Rocky Flats

    International Nuclear Information System (INIS)

    The US Department of Energy (DOE) has contracted for the cleanup and closure of former nuclear facilities sites using turn-key, performance-based incentive contracts that integrate the complete range of project management, decontamination and demolition, waste management, and environmental restoration strategies. This paper describes, from the contractor's perspective, several of the decommissioning strategies developed during the $7 billion decommissioning of the former Rocky Flats Nuclear Weapons Plant, and subsequently deployed to other DOE nuclear decommissioning programs. Lessons learned from the approaches taken at Rocky Flats and deployed to decommissioning programs at the DOE Hanford, Mound, Idaho, and Savannah River Sites include management, contractual, regulatory, and technological aspects of the work. (author)

  10. GPU seeks new funding for TMI cleanup

    International Nuclear Information System (INIS)

    General Public Utilities (GPU) wants approval for annual transfer of money from base rate increases in other accounts to pay for the cleanup at Three Mile Island (TMI) until TMI-1 returns to service or the public utility commission takes further action. This proposal confirms fears of a delay in TMI-1 startup and demonstrates that the January negotiated settlement will produce little funding for TMI-2 cleanup. A review of the settlement terms outlines the three-step process for base rate increases and revenue adjustments after the startup of TMI-1, and points out where controversy and delays due to psychological stress make a new source of money essential. GPU thinks customer funding will motivate other parties to a broad-based cost-sharing agreement

  11. Cleanup around an old waste site

    International Nuclear Information System (INIS)

    42,500 m3 of contaminated soil were removed from off-site areas around an old, low-level radioactive waste site near Port Hope, Ontario. The cleanup was done by means of conventional excavation equipment to criteria developed by Eldorado specific to the land use around the company's waste management facility. These cleanup criteria were based on exposure analyses carried out for critical receptors in two different scenarios. The excavated soils, involving eight different landowners, were placed on the original burial area of the waste management facility. Measures were also undertaken to stabilize the soils brought on-site and to ensure that there would be no subsequent recontamination of the off-site areas

  12. Researching Principles of Lesson Design to Realize the Pedagogical Opportunities of Mathematics Analysis Software

    Science.gov (United States)

    Pierce, Robyn; Stacey, Kaye

    2009-01-01

    Taking advantage of pedagogical opportunities afforded by new technology requires appropriately designed lessons. This article reports on the use of "lesson study" to research principles for the design of a lesson aiming to take advantage of multiple representations. The lesson, for year 10 students who had personal access to TI-Nspire, focused on…

  13. Methodologies for estimating shoreline cleanup costs

    Energy Technology Data Exchange (ETDEWEB)

    Etkin, D.S. [Environmental Research Consulting, Winchester, MA (United States)

    2001-07-01

    Once oil from an offshore oil spill hits a shoreline, cleanup operations become more complicated, expensive and time consuming because shoreline and intertidal ecosystems are complex and susceptible to serious impacts both from oiling and response functions. This paper described and compared methodologies for estimating shoreline cleanup costs for hypothetical spill scenarios based on projected shoreline oiling from oil spill trajectory modelling and on the factors that influence cost. It is important to estimate cleanup costs in order to optimize the allocation of resources for shoreline response and restoration. The factors that influence the amount of work needed and resulting cost are the characteristics of the impacted shoreline, the type of oil that has been spilled, and the standards to which cleanup is conducted. The cost estimation methods described in this paper were based on algorithms derived from statistical analyses of historical oil spill cost data in the Environmental Research Consulting database. This included modelling of labour requirements for different types of shorelines and types of oils, as well as other research studies. It was noted that there are serious limitations to these cost estimation methods. These include the fact that vessel and facility response plans are required to address worst case scenarios which have never actually occurred in the US or anywhere else in the world. Some strategies were recommended for improving the modelling of shoreline response costs. It was suggested that the predicted costs should be adjusted to take into account variations in spill situations. Also, contingency plans stress the importance of keeping the oil off the shoreline with booms, skimmers and dispersants. 31 refs., 22 figs.

  14. Accelerating cleanup. Paths to closure Hanford Site

    International Nuclear Information System (INIS)

    This document was previously referred to as the Draft 2006 Plan. As part of the DOE's national strategy, the Richland Operations Office's Paths to Closure summarizes an integrated path forward for environmental cleanup at the Hanford Site. The Hanford Site underwent a concerted effort between 1994 and 1996 to accelerate the cleanup of the Site. These efforts are reflected in the current Site Baseline. This document describes the current Site Baseline and suggests strategies for further improvements in scope, schedule and cost. The Environmental Management program decided to change the name of the draft strategy and the document describing it in response to a series of stakeholder concerns, including the practicality of achieving widespread cleanup by 2006. Also, EM was concerned that calling the document a plan could be misconstrued to be a proposal by DOE or a decision-making document. The change in name, however, does not diminish the 2006 vision. To that end, Paths to Closure retains a focus on 2006, which serves as a point in time around which objectives and goals are established

  15. Curious minds in the classroom: The influence of video feedback coaching for teachers in science and technology lessons

    OpenAIRE

    Wetzels, Anna

    2015-01-01

    Science and technology (S & T) play an important role in society, because every citizen needs a certain basic understanding of S & T to participate in the public debate, for example, in discussions with regard to topics such as climate change and gene manipulation. This thesis describes how video feedback coaching (VFC-T) can help stimulate S&T skills of students in the early school years, such as inquiry skills, scientific reasoning and argumentation. The VFC T focuses on teacher professiona...

  16. Teamwork Development across the Curriculum for Information Technology Students at Liepāja University: Processes, Outcomes and Lessons Learned

    OpenAIRE

    Tomsons, Dzintars; Jansone, Anita

    2015-01-01

    Teamwork skills are key feature for Information Technology (IT) specialists. The university IT curriculum contains both IT specific courses, and comprehensive courses. Due to limited amount of the learning courses and efficient achievement of learning goals, it is necessary to look for opportunities to integrate activities developing social and communication skills courses into IT specific courses. Managing the teamwork that is close to practice, it is necessary to solve the problems of teach...

  17. Business-Academia-Government Collaboration in Developing Human Resources in Science and Technology: Lessons from the Case of Britain (Japanese)

    OpenAIRE

    GOTO Akira; Woolgar, Lee

    2005-01-01

    Japanese industry has finally emerged from the prolonged economic slump and, partly helped by expanded tax incentives, companies have begun to accelerate research on and development of future technologies. In order to achieve this goal, Japan needs to secure and develop human resources for R&D. In this paper, we examine Britain's approach to the development of human resources through cooperation among business, government and academia, which has been praised as the "best practice" of its kind...

  18. DOE Hanford Network Upgrades and Disaster Recovery Exercise Support the Cleanup Mission Now and into the Future

    International Nuclear Information System (INIS)

    and data. The primary objective of the exercise was to test COOP around the emergency operations at Hanford to provide information on capabilities and dependencies of the current system to insure improved focus of emergency, safety and security capacity in a disaster situation. The integration of the DR test into the ET-50 project allowed the testing of COOP at Hanford and allowed the lessons learned to be defined. These lessons learned have helped improve the understanding of Hanford's COOP capabilities and will be critical for future planning. With the completion of the Hanford Federal Cloud network upgrades and the disaster recovery exercise, the MSA has a clearer path forward for future technology implementations as well as network improvements to help shape the usability and reliability of the Hanford network in support of the cleanup mission

  19. Lessons from Participatory Evaluation of Cropping Practices in Yunnan Province, China: Overview of the Effectiveness of Technologies and Issues Related to Technology Adoption

    Directory of Open Access Journals (Sweden)

    Eleanor Milne

    2009-09-01

    Full Text Available Increasing crop production, while maintaining sustainability, is a priority for agricultural development projects, particularly in developing countries. This study investigated the factors contributing to the effectiveness of agricultural development projects in improving the sustainability of cropping systems in a small upland watershed in south-west China. This involved a review of recent related projects and detailed evaluation of one project: the SHASEA Project. Farmers’ perceptions of several agricultural technologies are discussed, along with factors contributing to farmers’ adoption of these technologies. Local, national and international institutions need to adopt several strategies to improve project effectiveness and agro-environmental sustainability.

  20. Science, technology, society, and environment (STSE) and pre-service physics teacher education: Lessons for physics and education faculty

    Science.gov (United States)

    MacLeod, Katarin

    2015-12-01

    The science, technology, society, and environment (STSE) framework is well documented in educational research, policy, and science curricula development; fewer strides have been made in connecting this conceptual frame-work of science teaching into undergraduate physics courses via physics education research. Further, science teacher training programs must ensure pre-service teachers understand STSE so that they can teach in accordance with provincially mandated curriculums. This research points to possible ways that education and physics departments can work together to bridge student learning as well as explore ways that STSE can enrich the various physics courses we teach at the secondary and post-secondary levels.

  1. A VALIDITY AND RELIABILITY STUDY OF THE LEVEL OF TECHNOLOGY USE SCALE IN MATHEMATICS LESSONS AT ELEMENTARY SCHOOL LEVEL

    OpenAIRE

    Öksüz, Cumali; KARAKOÇ, Şerife Ak

    2010-01-01

    Abstract This study aimed at developing a scale to assess teachers' level of technology use in the teaching of mathematics at elementary school level. The scale included 32 Five-point Likert-type items and data was collected from a total of 325 participants. 300 pre-service teachers and 25 in-service teachers were included in this study. KMO (Kaiser-Mayer-Olkin) was calculated as .96 and Bartlett test was found significant (χ2=7427.08, df=378, p

  2. Leveraging the Affordances of YouTube: The Role of Pedagogical Knowledge and Mental Models of Technology Functions for Lesson Planning with Technology

    Science.gov (United States)

    Krauskopf, Karsten; Zahn, Carmen; Hesse, Friedrich W.

    2012-01-01

    Web-based digital video tools enable learners to access video sources in constructive ways. To leverage these affordances teachers need to integrate their knowledge of a technology with their professional knowledge about teaching. We suggest that this is a cognitive process, which is strongly connected to a teacher's mental model of the tool's…

  3. Considerations for clinics and practitioners treating foreign patients with assisted reproductive technology: lessons from experiences at Ghent University Hospital, Belgium.

    Science.gov (United States)

    De Sutter, Petra

    2011-11-01

    Cross-border reproductive care (CBRC) is not a new concept, having been around since the beginning of assisted reproductive technology. Countries having taken the lead in developing new technologies have seen an influx of patients from other countries, because of legal limitations or the unavailability of good-quality care in their home country. This paper describes the experience of the Ghent University Hospital fertility centre with Dutch and French patients and tries to set out standards of care for CBRC patients. Dutch patients usually have longer histories, more complex pathology and are better informed, more outspoken and more financially secure. Thus, the care for these patients is challenging. The standards of care should be the same for local patients and CBRC patients; however, the nature of the complexity of the problems they come with will necessitate more time investment. Experience shows that many patients who have no access to treatment in their own country obtain reasonably good results. Some of them, however, are beyond possible help and these patients need a high standard of psychological care. All should be done to avoid that cross-border patients compromise the local care system. Special arrangements should be taken to manage possible complications following treatment. PMID:21945265

  4. The ecological impact of land restoration and cleanup. Technical report

    International Nuclear Information System (INIS)

    The report is concerned with the ecological impacts of specific cleanup treatment on the land where they were carried out. The cleanup procedures given apply equally to chemical or radioactive materials. Guidance is provided for cleanup procedures likely to be suggested by government, industry, or environmental groups. The basic types of cleanup procedures for removing or deactiving spilled contamination involve moving people and animals from the affected area, scraping and grading the contaminated soil into windrows, plowing the contamination under, or digging up the contamination and hauling it away. The report describes and evaluates the various land-type cleanup effects in terms of impact of the techniques on the environment. Part I defines several natural ecosystems and some of their natural derivations. Part II presents managed ecosystems which are imposed on natural ecosystems and are no longer bound by the initial native ecosystem balances. Part III deals with avion and mammilian wild life displaced by cleanup

  5. Sharing lessons learned and best practices in deactivation and decommissioning techniques among U.S. Department of Energy contractors

    International Nuclear Information System (INIS)

    Approximately $153.2 billion of work currently remains in the United States Department of Energy's (DOE's) Office of Environmental Management (EM) life cycle budget for United States projects. Contractors who manage facilities for the DOE have been challenged to identify transformational changes to reduce the life cycle costs and develop a knowledge management system that identifies, disseminates, and tracks the implementation of lessons learned and best practices. At the request of the DOE's EM Office of Engineering and Technology, the Energy Facility Contractors Group (EFCOG) responded to the challenge with formation of the Deactivation and Decommissioning (D and D) and Facility Engineering (DD/FE) Working Group. Since October 2006, members have already made significant progress in realizing their goals: adding new D and D best practices to the existing EFCOG Best Practices database; participating in lessons learned forums; and contributing to a DOE initiative on identifying technology needs. The group is also participating in a DOE project management initiative to develop implementation guidelines, as well as a DOE radiation protection initiative to institute a more predictable and standardized approach to approving authorized limits and independently verifying cleanup completion at EM sites. Finally, a D and D hotline to provide real-time solutions to D and D challenges is also being launched. (authors)

  6. PEDAGOGICAL TECHNOLOGY ON THE BASIS OF INFORMATIVE-COMMUNICATIVE MAPS: EXPERIENCE OF DEVELOPMENT AND USE AT THE LESSONS OF HISTORY

    Directory of Open Access Journals (Sweden)

    Svetlana G. Ostrizhnyaya

    2015-03-01

    Full Text Available The aim of the research is to check the efficiency of use of logicalstructural graph format while studying material in the form of informative-communicative maps (IC-maps in formation of informative-communicative skills of pupils. Methods. Theoretical: analysis of means of pupils’ informative-communicative skills formation in the process of learning activity, comparison of their possibilities for the study of school course of History; empirical: expert assessment of IC-maps (teachers of History are experts, experimental work on pupils’ informative-communicative skills formation (forming experiment, supervising of the pupils’ team work (work in groups and assessment of the degree of importance and activity of their communicative interaction, surveying of pupils (self-assessment of received results, testing (success evaluation of studying material understanding; mathematical: statistical processing of surveying and testing results. Results. The efficiency of IC-maps use in the studying process is proved. More than 80% of pupils consider that the work with maps allow them to understand and memorize studying material better, communication culture increases due to the joint work with the map, skills of information structuring and generalizing are formed. Recommendations on IC-maps development and its use for humanitarian subjects are given for school teachers. Criteria of assessment of pupils’ work with IC-map are developed. Scientific novelty. The new definition of «informative-communicative map» is introduced; own author interpretation as didactic means, having the form of structuring graph analogue of studying text and helping informative-communicative skills formation, creative thinking development and learning big amount of studying information are given. Methodological peculiarities of IC-maps use in the studying process and its possibilities of building on the basis of pedagogic technology of informative-communicative skills

  7. Global modeling of Hanford tank waste pretreatment alternatives within a total cleanup system using ASPEN PLUS trademark

    International Nuclear Information System (INIS)

    The purpose of this work is to evaluate and compare radionuclide separations/processing technologies being developed or considered as Hanford tank waste pretreatment alternatives. These technologies are integrated into a total cleanup system that includes tank waste retrieval, treatment, and disposal. Current Hanford flowsheets typically include only mature, developed technologies, not new technologies. Thus, this work examines the impact/benefits of inserting new technologies into Hanford flowsheets. Waste treatment must produce disposal fractions which are less troublesome than the original material. Researchers seeking effective treatment methods may lack the tools or expertise to fully understand the implications of their approach in terms of secondary and tertiary waste streams or the extent to which a unique new process will affect upstream or downstream processes. This work has developed and demonstrated mass balance methods that clarify the effect of including individual processes in an integrated waste treatment system, such as the Hanford cleanup system. The methods provide a measure of treatment effectiveness and a format for the researcher to understand waste stream interrelationships and determine how a particular treatment technology can best be used in a cleanup system. A description of the Hanford tank waste cleanup model developed using the ASPEN PLUS flowsheet simulation tool is given. Important aspects of the modeling approach are discussed along with a description of how performance measures were developed and integrated within the simulation to evaluate and compare various Hanford tank waste pretreatment alternatives

  8. Preplanning of early cleanup. Annual report 1996

    International Nuclear Information System (INIS)

    A pre-study 'Pre-planning of early cleanup after fallout of radioactive material' made by Studvik EcoSafe has pointed out the need and request for pre-planning of actions. Based on the pre-study this project was started with the goal to work out guidelines and checklists. Because of the common interest between the Nordic countries NKS is the organization responsible for the project. The results of the project will be a document pointing out what can be planned in advance, including guidelines and checklists, regarding early cleanup actions after a nuclear plant accident in or in the vicinity of the Nordic countries. In this work 'early' means the three first weeks after an accident. The project only deals with questions concerning external radiation. The document shall be usable by persons in charge of planning or decision makers on the appropriate level of organization for each country. The document shall principally be aimed towards persons without professional competence in the field of radiology. The result will be presented for a limited number of generalized environments and fallout situations: urban/suburban/rural (concentrating on urban/suburban); regional differences (in for example house types and constructing material); dry or wet deposition. Five housing environments, ten cleanup actions and wet or dry deposition are treated. For 66 combinations calculations are made and the results are documented as data sheets, each describing the beneficial effects, costs and disadvantages of application of a feasible method for cleaning in the early phase of a specific type of surface in one of five different urban or suburban environments. This data forms the foundation for the recommendations on guidelines, which are the ultimate goal of the EKO-5 project. (EG)

  9. Shoreline clean-up methods : biological treatments

    Energy Technology Data Exchange (ETDEWEB)

    Massoura, S.T. [Oil Spill Response Limited, Southampton (United Kingdom)

    2009-07-01

    The cleanup of oil spills in shoreline environments is a challenging issue worldwide. Oil spills receive public and media attention, particularly in the event of a coastal impact. It is important to evaluate the efficiency and effectiveness of cleanup methods when defining the level of effort and consequences that are appropriate to remove or treat different types of oil on different shoreline substrates. Of the many studies that have compared different mechanical, chemical and biological treatments for their effectiveness on various types of oil, biological techniques have received the most attention. For that reason, this paper evaluated the effectiveness and effects of shoreline cleanup methods using biological techniques. It summarized data from field experiments and oil spill incidents, including the Exxon Valdez, Sea Empress, Prestige, Grand Eagle, Nakhodka, Guanabara Bay and various Gulf war oil spills. Five major shoreline types were examined, notably rocky intertidal, cobble/pebble/gravel, sand/mud, saltmarsh, and mangrove/sea-grass. The biological techniques that were addressed were nutrient enrichment, hydrocarbon-utilizing bacteria, vegetable oil biosolvents, plants, surf washing, oil-particle interactions and natural attenuation. The study considered the oil type, volume and fate of stranded oil, location of coastal materials, extent of pollution and the impact of biological techniques. The main factors that affect biodegradation of hydrocarbons are the volume, chemical composition and weathering state of the petroleum product as well as the temperature, oxygen availability of nutrients, water salinity, pH level, water content, and microorganisms in the shoreline environment. The interaction of these factors also affect the biodegradation of oil. It was concluded that understanding the fate of stranded oil can help in the development of techniques that improve the weathering and degradation of oil on complex shoreline substrates. 39 refs.

  10. CRADA opportunities with METC`s gasification and hot gas cleanup facility

    Energy Technology Data Exchange (ETDEWEB)

    Galloway, E.N.; Rockey, J.M.; Tucker, M.S.

    1995-06-01

    Opportunities exist for Cooperative Research and Development Agreements (CRADA) at the Morgantown Energy Technology Center (METC) to support commercialization of IGCC power systems. METC operates an integrated gasifier and hot gas cleanup facility for the development of gasification and hot gas cleanup technologies. The objective of our program is to gather performance data on gasifier operation, particulate removal, desulfurization and regeneration technologies. Additionally, slip streams are provided for developing various technologies such as; alkali monitoring, particulate measuring, chloride removal, and contaminate recovery processes. METC`s 10-inch diameter air blown Fluid Bed Gasifier (FBG) provides 300 lb/hr of coal gas at 1100{degrees}F and 425 psig. The particulate laden gas is transported to METC`s Modular Gas Cleanup Rig (MGCR). The gas pressure is reduced to 285 psig before being fed into a candle filter vessel. The candle filter vessel houses four candle filters and multiple test coupons. The particulate free gas is then desulfurized in a sorbent reactor. Starting in 1996 the MGCR system will be able to regenerate the sorbent in the same vessel.

  11. Restoration principles and criteria: superfund program policy for cleanup at radiation contaminated sites

    International Nuclear Information System (INIS)

    The Environmental Protection Agency (EPA) Office of Superfund Remediation and Technology Innovation (OSRTI) is responsible for implementing the long-term (non-emergency) portion of a key U.S. law regulating cleanup: the Comprehensive Environmental Response, Compensation and Liability Act, CERCLA, nicknamed 'Superfund'. The purpose of the Superfund program is to protect human health and the environment over the long term from releases or potential releases of hazardous substances from abandoned or uncontrolled hazardous waste sites. The focus of this paper is on Superfund, including how radiation is addressed by the Superfund program. This paper provides a brief overview of the approach used by EPA to conduct Superfund cleanups at contaminated sites, including those that are contaminated with radionuclides, to ensure protection of human health and the environment. The paper addresses how EPA Superfund determines if a site poses a risk to human health and the framework used to determine cleanup levels. The theme emphasized throughout the paper is that within the Superfund remediation framework, radioactive contamination is dealt with in a consistent manner as with chemical contamination, except to account for the technical differences between radionuclides and chemicals. This consistency is important since at every radioactively contaminated site being addressed under Superfund's primary program for long-term cleanup, the National Priorities List (NPL), chemical contamination is also present. (author)

  12. Efficiency enhancement in IGCC power plants with air-blown gasification and hot gas clean-up

    International Nuclear Information System (INIS)

    Air-blown IGCC systems with hot fuel gas clean-up are investigated. In detail, the gas clean-up station consists of two reactors: in the first, the raw syngas exiting the gasifier and passed through high-temperature syngas coolers is desulfurized by means of a zinc oxide-based sorbent, whereas in the second the sulfided sorbent is duly regenerated. The hot fuel gas clean-up station releases H2S-free syngas, which is ready to fuel the combustion turbine after hot gas filtration, and a SO2-laden stream, which is successively treated in a wet scrubber. A thermodynamic analysis of two air-blown IGCC systems, the first with cold fuel gas clean-up and the second with hot fuel gas clean-up, both with a state-of-the-art combustion turbine as topping cycle, shows that it is possible to obtain a really attractive net efficiency (more than 51%) for the second system, with significant improvements in comparison with the first system. Nevertheless, higher efficiency is accomplished with a small reduction in the power output and no sensible efficiency improvements seem to be appreciated when the desulfurization temperature increases. Other IGCC systems, with an advanced 1500 °C-class combustion turbine as the result of technology improvements, are investigated as well, with efficiency as high as 53%. - Highlights: ► Hot fuel gas clean-up is a highly favorable technology for IGCC concepts. ► Significant IGCC efficiency improvements are possible with hot fuel gas clean-up. ► Size reductions of several IGCC components are possible. ► Higher desulfurization temperatures do not sensibly affect IGCC efficiency. ► IGCC efficiency as high as 53% is possible with a 1500°C-class combustion turbine

  13. Oil spill cleanup method and apparatus

    Energy Technology Data Exchange (ETDEWEB)

    Mayes, F.M.

    1980-06-24

    A method for removing oil from the surface of water where an oil spill has occurred, particularly in obstructed or shallow areas, which comprises partially surrounding a hovercraft with a floating oil-collecting barrier, there being no barrier at the front of the hovercraft, moving the oil-barrier-surrounded-hovercraft into oil contaminated water, and collecting oil gathered within the barrier behind the hovercraft through a suction line which carries the oil to a storage tank aboard the hovercraft. The invention also embodies the hovercraft adapted to effect an oil spill cleanup.

  14. Landfill gas cleanup for fuel cells

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-08-01

    EPRI is to test the feasibility of using a carbonate fuel cell to generate electricity from landfill gas. Landfills produce a substantial quantity of methane gas, a natural by-product of decaying organic wastes. Landfill gas, however, contains sulfur and halogen compounds, which are known contaminants to fuel cells and their fuel processing equipment. The objective of this project is to clean the landfill gas well enough to be used by the fuel cell without making the process prohibitively expensive. The cleanup system tested in this effort could also be adapted for use with other fuel cells (e.g., solid oxide, phosphoric acid) running on landfill gas.

  15. Particulate hot gas stream cleanup technical issues

    Energy Technology Data Exchange (ETDEWEB)

    Pontius, D.H.; Snyder, T.R.

    1999-09-30

    The analyses of hot gas stream cleanup particulate samples and descriptions of filter performance studied under this contract were designed to address problems with filter operation that have been linked to characteristics of the collected particulate matter. One objective of this work was to generate an interactive, computerized data bank of the key physical and chemical characteristics of ash and char collected from operating advanced particle filters and to relate these characteristics to the operation and performance of these filters. The interactive data bank summarizes analyses of over 160 ash and char samples from fifteen pressurized fluidized-bed combustion and gasification facilities utilizing high-temperature, high pressure barrier filters.

  16. Factors that influence student΄s behaviour concerning lessons attendance in Nursing Department of Technological Institute of Athens

    Directory of Open Access Journals (Sweden)

    Georgia Fasoi

    2012-04-01

    Full Text Available The short-term absence of Nursing students from their studies is a phenomenon that has troubled teachers a lot. The lack of participation in courses is a widespread threat to education. Absences are often related to poor academic performance, unprofessional attitude and inadequate socialization. Purpose: The investigation of the reasons why students of Nursing Department of Technological Institute of Athens do not attend classes. Material-Method: The studied population consisted of 579 students of Nursing Institute of Athens. 65.6% (N = 380 were in the Nursing department A and 34.4% (N = 199 in department B. For data collection, which lasted 12 months, it was used a special designed questionnaire. For each year was distributed separate univariate and multivariate logistic regression analysis. Data analysis was performed with the statistical package SPSS ver. 16. Results: The occupational status has an important role in attendance. It affects more those who do not attend classes, p <0.001. Students in first year of their studies were 1.154 times more likely to attend classes more weeks in a year compared to the others (B: -0.143, P: 0.001, OR: 0.867, 95%OR: 0.798-0.942 and 3.86 times more likely to criticize an inadequate professor in relation to the other (B: -1.350, P: 0.003, OR: 0.259, 95%OR: 0.106-0.635. The fourth year students were 2.29 times more likely to respond than others that the time courses were not helpful (Β: 0.832, P: 0.024, OR: 2.298, 95%OR: 1.117-4.728. Conclusions: The occupational status is the main reason for nursing students not to attend lectures. The main reasons of absence, concerning non-working students, from the lectures are the non-transmissibility of the teacher and the fact that he is not accessible.

  17. Lesson Learning at JPL

    Science.gov (United States)

    Oberhettinger, David

    2011-01-01

    A lessons learned system is a hallmark of a mature engineering organization A formal lessons learned process can help assure that valuable lessons get written and published, that they are well-written, and that the essential information is "infused" into institutional practice. Requires high-level institutional commitment, and everyone's participation in gathering, disseminating, and using the lessons

  18. Hot particulate removal and desulfurization results from the METC integrated gasification and hot gas cleanup facility

    Energy Technology Data Exchange (ETDEWEB)

    Rockey, J.M.

    1995-06-01

    The Morgantown Energy Technology Center (METC) is conducting experimental testing using a 10-inch diameter fluid-bed gasifier (FBG) and modular hot gas cleanup rig (MGCR) to develop advanced methods for removing contaminants in hot coal gasifier gas streams for commercial development of integrated gasification combined-cycle (IGCC) power systems. The program focus is on hot gas particulate removal and desulfurization technologies that match the temperatures and pressures of the gasifier, cleanup system, and power generator. The purpose of this poster is to present the program objectives and results of the work conducted in cooperation with industrial users and vendors to meet the vision for IGCC of reducing the capital cost per kilowatt to $1050 and increasing the plant efficiency to 52% by the year 2010.

  19. Overview of recycling technologies for decommissioned materials. Lessons learned during the dismantling of a small PWR reactor

    International Nuclear Information System (INIS)

    Full text: SCK CEN is dismantling its 11 MWe PWR reactor. The reactor was shutdown in 1987 after 25 years of operation and the dismantling started in 1990. For the management of the low radioactive materials, we apply a strategy promoting the minimisation of the production of radioactive waste and hence the maximisation of the production of recycled materials while keeping the costs as low as possible. The recycled materials are either reused in the non- nuclear industry as raw materials (metal scrap industry or building industry for the concrete) or recycled in the nuclear industry for specific applications (reuse of metals for fabrication of shielding, potential reuse of concrete for production of 'radioactive mortar'). The clearance of radioactive materials and their reuse require the strict respect of procedures and specifications. In our case, the Health Physics department under supervision of the Competent Authority establishes the procedures. This procedure is still a case by case practice but the legislation in Belgium is progressively put in place. For the recycling in the nuclear industry, we must respect the specifications of the end-user. Up to now, we have recycled low radioactive metals for the fabrication of shielding in the USA, so we had to respect the specifications of the melting facility and to obtain the authorisations for the transport abroad and for the transfer of property. Besides the radioactive waste route, we are using several evacuation routes for the dismantled materials: Evacuation of the cleared metals (iron, stainless steel, copper, electric motors...) to a local scrap dealer; Evacuation of metals to the Studsvik melting facility situated in Sweden: after clearance by the Swedish Authority, the non radioactive materials are sent to a local scrap dealer and the secondary radioactive waste is sent back to Belgium and conditioned by Belgoprocess. This technology further decontaminates the metals and allows performing an accurate

  20. Lessons-Learned from D and D Activities at the Five Gaseous Diffusion Buildings (K-25, K- 27, K-29, K-31 and K-33) East Tennessee Technology Park, Oak Ridge, TN - 13574

    International Nuclear Information System (INIS)

    The East Tennessee Technology Park (ETTP) is the site of five former gaseous diffusion plant (GDP) process buildings that were used to enrich uranium from 1945 to 1985. The process equipment in the original two buildings (K-25 and K-27) was used for the production of highly enriched uranium (HEU), while that in the three later buildings (K-29, K-31 and K-33) produced low enriched uranium (LEU). Equipment was contaminated primarily with uranium and to a lesser extent technetium (Tc). Decommissioning of the GDP process buildings has presented several unique challenges and produced many lessons-learned. Among these is the importance of good, up-front characterization in developing the best demolition approach. Also, chemical cleaning of process gas equipment and piping (PGE) prior to shutdown should be considered to minimize the amount of hold-up material that must be removed by demolition crews. Another lesson learned is to maintain shutdown buildings in a dry state to minimize structural degradation which can significantly complicate characterization, deactivation and demolition efforts. Perhaps the most important lesson learned is that decommissioning GDP process buildings is first and foremost a waste logistics challenge. Innovative solutions are required to effectively manage the sheer volume of waste generated from decontamination and demolition (D and D) of these enormous facilities. Finally, close coordination with Security is mandatory to effectively manage Special Nuclear Material (SNM) and classified equipment issues. (authors)

  1. Cleanup of the Millstone 2 spent fuel pool

    International Nuclear Information System (INIS)

    In 1987, Millstone Nuclear Power Station developed a need for cleanup of their Unit 2 spent fuel pool (SFP). This pool had lost normal water chemistry due to high concentrations of TOC and had lost clarity and viewing capabilities required for fuel handling. After reviewing the various technologies that could be utilized to remove these contaminants, Millstone personnel determined that the reverse osmosis (RO) technology was the most reliable, cost effective, and efficient method for resolving their spent fuel pool clarity problems. The complete water restoration program was accomplished in less than 40 days including mobilization, setup, operation, maintenance, and teardown time. Over 1.38 million gallons of water were processed in 24 days of processing. The program resulted in the successful restoration of water clarity and reduction of the contaminants while maintaining a large percentage of the boron in the water. USE achieved TOC rejection rates of up to 99 percent during the program. The results of the program verify that RO technology is a viable alternative for carrying out water restoration programs in the nuclear industry

  2. TMI-2: Lessons learned by the US Department of Energy: A programmatic perspective

    International Nuclear Information System (INIS)

    This report is a summary of the lessons learned by the US Department of Energy during its decade-long participation in the research and accident cleanup project at Three Mile Island Nuclear Power Station Unit 2 near Harrisburg, Pennsylvania. It is based on a review of a wide range of project documents and interviews with personnel from the many organizations involved. The lessons are organized into major subjects with a brief background section to orient the reader to that subject. The subjects are divided into sub-topics, each with a brief discussion and a series of lessons learned. The lessons are very brief and each is preceded with a keyword phrase to highlight its specific topic. References are given so that the details of the subject and the lesson can be further investigated. 99 refs., 24 figs

  3. Bioavailability: implications for science/cleanup policy; FINAL

    International Nuclear Information System (INIS)

    This paper examines the role of bioavailability in risk assessment and cleanup decisions. Bioavailability refers to how chemicals ''behave'' and their ''availability'' to interact with living organisms. Bioavailability has significant implications for exposure risks, cleanup goals, and site costs. Risk to human health and the environment is directly tied to the bioavailability of the chemicals of concern

  4. Architecture synthesis basis for the Hanford Cleanup system: First issue

    International Nuclear Information System (INIS)

    This document describes a set of candidate alternatives proposed to accomplish the Hanford Cleanup system functions defined in a previous work. Development of alternatives is part of a sequence of system engineering activities which lead to definition of all the products which, when completed, accomplish the cleanup mission. The alternative set is developed to functional level four or higher depending on need

  5. Cleanup and Dismantling of Highly Contaminated Ventilation Systems Using Robotic Tools - 13162

    International Nuclear Information System (INIS)

    The UP1 plant reprocessed nearly 20,000 tons of used natural uranium gas cooled reactor fuel coming from the first generation of civil nuclear reactors in France. Following operating incidents in the eighties, the ventilation system of the continuous dissolution line facility was shut down and replaced. Two types of remote controlled tool carriers were developed to perform the decontamination and dismantling operations of the highly contaminated ventilation duct network. The first one, a dedicated small robot, was designed from scratch to retrieve a thick powder deposit within a duct. The robot, managed and confined by two dedicated glove boxes, was equipped for intervention inside the ventilation duct and used for carrying various cleanup and inspection tools. The second type, consisting of robotic tools developed on the base of an industrial platform, was used for the clean-up and dismantling of the ventilation duct system. Depending on the type of work to be performed, on the shape constraints of the rooms and any equipment to be dismantled, different kinds of robotic tools were developed and installed on a Brokk 40 carrier. After more than ten years of ventilation duct D and D operations at the UP1 plant, a lot of experience was acquired about remote operations. The three main important lessons learned in terms of remote controlled operation are: characterizing the initial conditions as much as reasonably possible, performing non-radioactive full scale testing and making it as simple and modular as possible. (authors)

  6. Superfund at work: Hazardous waste cleanup efforts nationwide, fall 1992. (Wide Beach section of Brant, New York)

    International Nuclear Information System (INIS)

    Wide-spread contamination of polychlorinated biphenyls (PCBs) threatened the Wide Beach section of Brant, New York, a popular vacation resort. EPA's Superfund program effectively completed a permanent cleanup of Wide Beach in the span of one year. Other highlights included: a new and innovative technology to remove PCB contamination; reduction of PCBs to one-fifth of acceptable levels; temporary relocation of residents who were concerned for their health while cleanup activities took place; newly paved roads and driveways, re-landscaped yards, and a new storm sewer system; and restoration of ecologically sensitive wetlands. EPA's achievements significantly reduced PCB risks at Wide Beach, and left a satisfied community in Brant

  7. Saudis map $450 million gulf spill cleanup

    International Nuclear Information System (INIS)

    This paper reports on Saudi Arabia which has earmarked about $450 million to clean up Persian Gulf beaches polluted by history's worst oil spills, created during the Persian Gulf crisis. Details of the proposed cleanup measures were outlined by Saudi environmental officials at a seminar on the environment in Dubai, OPEC News Agency reported. The seminar was sponsored by the Gulf Area Oil Companies Mutual Aid Organization, an environmental cooperative agency set up by Persian Gulf governments. Meantime, a Saudi government report has outlined early efforts designed to contain the massive oil spills that hit the Saudi coast before oil could contaminate water intakes at the huge desalination plants serving Riyadh and cooling water facilities at Al Jubail

  8. Improving oiled shoreline cleanup with COREXIT 9580

    Energy Technology Data Exchange (ETDEWEB)

    Fiocco, R.J.; Lessard, R.R. [Exxon Research and Engineering Co., Florham Park, NJ (United States); Canevari, G.P. [G.P. Canevari Associates, Cranford, NJ (United States)

    1996-08-01

    The cleanup of oiled shorelines has generally been by mechanical, labor-intensive means. The use of a chemical shoreline cleaner to assist in water-flushing oil from the surfaces can result in more complete and more rapid cleaning. Not only is the cleaning process more efficient, but it can also be less environmentally damaging since there is potentially much less human intrusion and stress on the biological community. This paper describes research and applications of COREXIT 9580 shoreline cleaner for treatment of oiled shorelines, including four recent applications in Puerto Rico, Bermuda, Texas and Nova Scotia. Research work on shoreline vegetation, such as mangroves, has also demonstrated the potential use of this product to save and restore oiled vegetation.

  9. Helping with the clean-up

    International Nuclear Information System (INIS)

    Successes in public involvement efforts for nuclear waste management are so few that they deserve careful documentation and analysis. This paper chronicles the goals, process, problems and outcomes of one such success, the Northwest Defense Waste Citizens Forum (CF), created by the DOE-Richland manager in 1986 to advise DOE on its plans for nuclear waste disposal and cleanup of the Hanford site n eastern Washington state. In the evolving, often-controversial, highly-visible area of agency-public interactions, citizen task forces (TFs) have been shown to be useful in developing public policy at the local level. Making them work at the state level is more problematic. This case shows that a diverse, two-state citizen group can make significant contributions to complex EIS evaluations with heavy technical components. The CFs principal contribution to public policy was communication of its findings to business and professional groups, to area political representatives and state agencies, thereby laying the ground work for refocusing the Northwest upon the need for action on DW cleanup at Hanford. In going well beyond NEPA requirements for public involvement in agency decision making, DOE-Richland demonstrated innovative ways of dealing with the difficult issues of public confidence and public trust by means of agency openness, responsiveness to citizen needs for information, and good faith two-way communication. The success of this pro-active DOE initiative was due to many factors including selecting the right issue (existing wastes), structuring the CF at a broad, regional level, and intensive implementation of trust-building strategies

  10. Risk assessment applications for determining cleanup limits for uranium in treated and untreated soils

    International Nuclear Information System (INIS)

    Uranium-contaminated soils are present at various locations across the US where uranium was processed for nuclear fuels or atomic weapons. Important issues relative to such contamination include the assessment of potential health risks associated with human exposures to the residual uranium and the determination of safe levels of uranium in soils that have been treated by a given technology. This paper discusses various risk assessment considerations that must be dealt with when developing cleanup limits for uranium in treated and untreated soils. Key issues addressed include alternative land use scenarios, potential exposure pathways, characterization of the bioavailability of uranium compounds in food and water, a brief overview of health risks associated with uranium and its daughter products as well as a summary of considerations for development of risk-based cleanup limits for uranium in soils

  11. Radiological assessment in case of an incident at the hot cells clean-up

    Directory of Open Access Journals (Sweden)

    Dragolici Cristian A.

    2014-01-01

    Full Text Available The clean-up and decontamination of the hot cells will be performed in the second phase of the WWR-S research reactor decommissioning. Identification of possible incidents or accidents is the key element in radiological assessment and prevention. As major incident it was considered a fire burst that occurred during the progress of the clean-up operations. The postulated incident has, as a consequence, thick smoke generation from the burned radioactive material and the dispersion of this material in the environment through the technological ventilation system and the evacuation chimney. From the performed analysis it can be seen that in the case of an incident to the reactor hot cells, an operator engaged in intervention operations could take an effective dose of 5.29 Sv per event, coming from both external and internal exposure. Such an incident, if it happens, would be classified of level 3 on the INES scale.

  12. Risk assessment applications for determining cleanup limits for uranium in treated and untreated soils

    Energy Technology Data Exchange (ETDEWEB)

    Armstrong, A.Q. [Oak Ridge National Lab., TN (United States); Layton, D.W. [Lawrence Livermore National Lab., CA (United States); Rutz, E.E. [Univ. of Cincinnati, OH (United States)

    1994-06-01

    Uranium-contaminated soils are present at various locations across the US where uranium was processed for nuclear fuels or atomic weapons. Important issues relative to such contamination include the assessment of potential health risks associated with human exposures to the residual uranium and the determination of safe levels of uranium in soils that have been treated by a given technology. This paper discusses various risk assessment considerations that must be dealt with when developing cleanup limits for uranium in treated and untreated soils. Key issues addressed include alternative land use scenarios, potential exposure pathways, characterization of the bioavailability of uranium compounds in food and water, a brief overview of health risks associated with uranium and its daughter products as well as a summary of considerations for development of risk-based cleanup limits for uranium in soils.

  13. Technology cottons on to oil spill clean-ups

    International Nuclear Information System (INIS)

    Characteristics of Oil Gator(TM) a plant fibre absorbent, chemically modified to encourage biodegradation of hydrocarbons by indigenous bacteria are discussed. The petrophyllic bacteria are safe to humans and animals and are environmentally benign. They utilize hydrocarbons as a food source when activated by air or moisture. Oil Gator(TM) works by encapsulating the oil; ammonium sulphate, an effective delayed-reaction nitrogen source, renders the absorbed oil less flammable. The cotton-based raw material is readily available, which is another advantage over peat or clay which require mining and stripping. Oil Gator(TM) can also be incinerated, and is designed to allow safe handing and begin neutralization of most acid spills quickly and efficiently. Disposal of the saturated Acid Gator has to be carried out in compliance with the appropriate government regulations for the particular acids absorbed

  14. Equipment Design and Cost Estimation for Small Modular Biomass Systems, Synthesis Gas Cleanup, and Oxygen Separation Equipment; Task 2: Gas Cleanup Design and Cost Estimates -- Wood Feedstock

    Energy Technology Data Exchange (ETDEWEB)

    Nexant Inc.

    2006-05-01

    As part of Task 2, Gas Cleanup and Cost Estimates, Nexant investigated the appropriate process scheme for treatment of wood-derived syngas for use in the synthesis of liquid fuels. Two different 2,000 metric tonne per day gasification schemes, a low-pressure, indirect system using the gasifier, and a high-pressure, direct system using gasification technology were evaluated. Initial syngas conditions from each of the gasifiers was provided to the team by the National Renewable Energy Laboratory. Nexant was the prime contractor and principal investigator during this task; technical assistance was provided by both GTI and Emery Energy.

  15. Tephra fall clean-up in urban environments

    Science.gov (United States)

    Hayes, Josh L.; Wilson, Thomas M.; Magill, Christina

    2015-10-01

    Tephra falls impact urban communities by disrupting transport systems, contaminating and damaging buildings and infrastructures, and are potentially hazardous to human health. Therefore, prompt and effective tephra clean-up measures are an essential component of an urban community's response to tephra fall. This paper reviews case studies of tephra clean-up operations in urban environments around the world, spanning 50 years. It identifies methods used in tephra clean-up and assesses a range of empirical relationships between level of tephra accumulation and clean-up metrics such as collected tephra volume, costs, and duration of operations. Results indicate the volume of tephra collected from urban areas is proportional to tephra accumulation. Urban areas with small tephra accumulations (1,000 m3/km2 or an average of 1 mm thickness) may collect 50,000 m3/km2 or an average of 50 mm thickness) remove up to 80%. This relationship can inform impact and risk assessments by providing an estimate of the likely response required for a given tephra fall. No strong relationship was found between tephra fall accumulation and clean-up cost or duration for urban environments which received one-off tephra falls, suggesting that these aspects of tephra fall clean-up operations are context specific. Importantly, this study highlights the advantage of effective planning for tephra clean-up and disposal in potentially exposed areas.

  16. A breakthrough in flue gas cleanup, CO2 mitigation and H2S removal

    Energy Technology Data Exchange (ETDEWEB)

    Koch, Wolf; Wasas, James; Stenger, Raymond; Howell, Evan

    2010-09-15

    SWAPSOL Corp. is developing commercial processes around a newly discovered reaction that reduces H2S below detectable levels while reacting with CO2 to form water, sulfur and carsuls, a carbon-sulfur polymer. The Stenger-Wasas Process (SWAP) stands to simplify sulfur removal technology as it consumes CO2 in an exothermic reaction. The SWAP has applications in landfill, sour, flue and Claus tail gas cleanup and may replace Claus technology. Destruction of waste hydrocarbons provides a source of H2S. The primary reactions and variants have been independently verified and the chemical kinetics determined by a third party laboratory.

  17. Independent Verification of Non-Destructive Assay Characterization Results at the East Tennessee Technology Park K-25 Building and Lessons Learned

    International Nuclear Information System (INIS)

    This paper describes the results and lessons learned from the independent verification (IV) of the non-destructive assay (NDA) program development and implementation at the former K-25 Gaseous Diffusion Plant located in Oak Ridge, Tennessee. NDA gamma and neutron measurements were used to detect and quantify uranium-235 (U-235) hold-up in process gas piping and equipment. The data were used to satisfy multiple objectives, including demonstrating compliance with criticality safety limits and waste acceptance criteria for two disposal facilities. The independent verification effort was two-fold, and included technical reviews of program documents and implementing procedures as well as independent NDA field measurements. The process of performing IV resulted in numerous lessons learned that serve as valuable input for the planning of future uranium enrichment facility decommissioning projects. (authors)

  18. Eye pathologies of Chernobyl clean-up workers

    International Nuclear Information System (INIS)

    Diseases of the nervous system and sense organs have become the most significant pathologies of Chernobyl clean-up workers during the last four years. The aim of this work was to evaluate the incidence of eye disorders among Chernobyl clean-up workers to provide more information for health specialists. During the last 10 years, the most common eye pathology has been angiopathia retinae, followed by myopia and cataracta. Statistical analyses showed that the clean-up workers have higher risk to develop angiopathia retinae than the control group. (author)

  19. Tritium research laboratory cleanup and transition project final report

    International Nuclear Information System (INIS)

    This Tritium Research Laboratory Cleanup and Transition Project Final Report provides a high-level summary of this project's multidimensional accomplishments. Throughout this report references are provided for in-depth information concerning the various topical areas. Project related records also offer solutions to many of the technical and or administrative challenges that such a cleanup effort requires. These documents and the experience obtained during this effort are valuable resources to the DOE, which has more than 1200 other process contaminated facilities awaiting cleanup and reapplication or demolition

  20. Tritium research laboratory cleanup and transition project final report

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, A.J.

    1997-02-01

    This Tritium Research Laboratory Cleanup and Transition Project Final Report provides a high-level summary of this project`s multidimensional accomplishments. Throughout this report references are provided for in-depth information concerning the various topical areas. Project related records also offer solutions to many of the technical and or administrative challenges that such a cleanup effort requires. These documents and the experience obtained during this effort are valuable resources to the DOE, which has more than 1200 other process contaminated facilities awaiting cleanup and reapplication or demolition.

  1. Science for all or science for some: What Swedish students want to learn about in secondary science and technology and their opinions on science lessons

    OpenAIRE

    Anders Jidesjö; Magnus Oscarsson; Karl-Göran Karlsson; Helge Strömdahl

    2012-01-01

    This article presents Swedish results from ‘the Relevance of Science Education’ (ROSE) study, which is a large world wide comparative research project based at the University of Oslo. The Swedish sample consisted of 751 students, most of whom were 15 years old, from 29 schools and data were collected inspring 2003. Student opinions about science lessons are presented in relation to enrolment intentions for upper secondary school together with what they want to learn about in science and techn...

  2. The Problem about Technology in STEM Education: Some Findings from Action Research on the Professional Development & Integrated STEM Lessons in Informal Fields

    OpenAIRE

    Tomoki Saito; Yoshiyuki Gunji; Yoshisuke Kumano

    2015-01-01

    Since 2013, the authors’ Japanese team in the Department of Science Education at Shizuoka University has held trials of STEM Education in informal fields as participatory action research (e.g., Science museum in Shizuoka, Lifelong Learning Center in Fujieda City, and STEM Summer camp) for the preparation for implementing STEM education in public schools and for proposing science education reform in a Japanese context. Problems in preparing STEM lessons include numerous new instructional mater...

  3. Assessing mixtures risks for cleanup and stewardship

    International Nuclear Information System (INIS)

    The U.S. Department of Energy (DOE) is responsible for addressing contamination from past research, production, and disposal activities at over 100 sites and facilities across the country. Use of emerging science to assess risks for these facilities is the key to defining appropriate solutions. Safely managing contamination is a priority to protect workers in the near term, and sustained protection is a priority for local communities over the long term. The Department conducts its environmental management program with input from a number of groups who have expressed concern about the safety of DOE sites over time and the possible conversion of some lands to other uses. In general, past facility activities and disposal operations have contaminated about 10% of the total collective area of DOE sites while surrounding lands have served as buffer zones. Portions of several sites have been released for other uses, such as wildlife preserves. Soil, surface water, and groundwater have been contaminated in most instances, and on-site waste disposal is targeted for many sites. Wastes and contamination that will remain in the environment are at the heart of ongoing future use and long-term management deliberations. For this reason, oversight groups and local citizens are scrutinizing the risk assessments being conducted to support decisions on final cleanup and long-term stewardship. Contaminants exist throughout the world not as individual chemicals but as combinations. The standard risk assessment process broadly applied to support cleanup decisions for contaminated sites is based on single-chemical analyses that do not consider joint toxicity. That is, possible nonadditive effects (commonly termed synergistic or antagonistic) of multiple exposures to multiple chemicals are not generally addressed. The U.S. Environmental Protection Agency (EPA) has been developing a process to assess risks of multiple chemicals (EPA 1990, 2000), but it is not yet being applied to address

  4. Central Plateau Cleanup at DOE's Hanford Site - 12504

    International Nuclear Information System (INIS)

    The discussion of Hanford's Central Plateau includes significant work in and around the center of the Hanford Site - located about 7 miles from the Columbia River. The Central Plateau is the area to which operations will be shrunk in 2015 when River Corridor cleanup is complete. This work includes retrieval and disposal of buried waste from miles of trenches; the cleanup and closure of massive processing canyons; the clean-out and demolition to 'slab on grade' of the high-hazard Plutonium Finishing Plant; installation of key groundwater treatment facilities to contain and shrink plumes of contaminated groundwater; demolition of all other unneeded facilities; and the completion of decisions about remaining Central Plateau waste sites. A stated goal of EM has been to shrink the footprint of active cleanup to less than 10 square miles by 2020. By the end of FY2011, Hanford will have reduced the active footprint of cleanup by 64 percent exceeding the goal of 49 percent. By 2015, Hanford will reduce the active footprint of cleanup by more than 90 percent. The remaining footprint reduction will occur between 2015 and 2020. The Central Plateau is a 75-square-mile region near the center of the Hanford Site including the area designated in the Hanford Comprehensive Land Use Plan Environmental Impact Statement (DOE 1999) and Record of Decision (64 FR 61615) as the Industrial-Exclusive Area, a rectangular area of about 20 square miles in the center of the Central Plateau. The Industrial-Exclusive Area contains the 200 East and 200 West Areas that have been used primarily for Hanford's nuclear fuel processing and waste management and disposal activities. The Central Plateau also encompasses the 200 Area CERCLA National Priorities List site. The Central Plateau has a large physical inventory of chemical processing and support facilities, tank systems, liquid and solid waste disposal and storage facilities, utility systems, administrative facilities, and groundwater monitoring

  5. Investigation of post hydraulic fracturing well cleanup physics in the Cana Woodford Shale

    Science.gov (United States)

    Lu, Rong

    Hydraulic fracturing was first carried out in the 1940s and has gained popularity in current development of unconventional resources. Flowing back the fracturing fluids is critical to a frac job, and determining well cleanup characteristics using the flowback data can help improve frac design. It has become increasingly important as a result of the unique flowback profiles observed in some shale gas plays due to the unconventional formation characteristics. Computer simulation is an efficient and effective way to tackle the problem. History matching can help reveal some mechanisms existent in the cleanup process. The Fracturing, Acidizing, Stimulation Technology (FAST) Consortium at Colorado School of Mines previously developed a numerical model for investigating the hydraulic fracturing process, cleanup, and relevant physics. It is a three-dimensional, gas-water, coupled fracture propagation-fluid flow simulator, which has the capability to handle commonly present damage mechanisms. The overall goal of this research effort is to validate the model on real data and to investigate the dominant physics in well cleanup for the Cana Field, which produces from the Woodford Shale in Oklahoma. To achieve this goal, first the early time delayed gas production was explained and modeled, and a simulation framework was established that included all three relevant damage mechanisms for a slickwater fractured well. Next, a series of sensitivity analysis of well cleanup to major reservoir, fracture, and operational variables was conducted; five of the Cana wells' initial flowback data were history matched, specifically the first thirty days' gas and water producing rates. Reservoir matrix permeability, net pressure, Young's modulus, and formation pressure gradient were found to have an impact on the gas producing curve's shape, in different ways. Some moderately good matches were achieved, with the outcome of some unknown reservoir information being proposed using the

  6. Thermal cleanups using dynamic underground stripping and hydrous pyrolysis oxidation

    Energy Technology Data Exchange (ETDEWEB)

    Aines, R D; Knauss, K; Leif, R; Newmark, R L

    1999-05-01

    In the early 1990s, in collaboration with the School of Engineering at the University of California, Berkeley, Lawrence Livermore National Laboratory developed dynamic underground stripping (DUS), a method for treating subsurface contaminants with heat that is much faster and more effective than traditional treatment methods. more recently, Livermore scientists developed hydrous pyrolysis/oxidation (HPO), which introduces both heat and oxygen to the subsurface to convert contaminants in the ground to such benign products as carbon dioxide, chloride ion, and water. This process has effectively destroyed all contaminants it encountered in laboratory tests. With dynamic underground stripping, the contaminants are vaporized and vacuumed out of the ground, leaving them still to be destroyed elsewhere. Hydrous pyrolysis/oxidation technology takes the cleanup process one step further by eliminating the treatment, handling, and disposal requirements and destroying the contamination in the ground. When used in combination, HPO is especially useful in the final polishing of a site containing significant free-product contaminant, once the majority of the contaminant has been removed.

  7. Zooremediation, a new biotechnology solution for shoreline protection and cleanup

    International Nuclear Information System (INIS)

    This paper presented the results of a field study in which a zooremediation method was used to clean up an oil spill in the shoreline of Kola Bay in the Barents Sea. The objective was to confirm that the next generation of environmental remediation tools will include remediation and restoration technology based on phytoremediation, bioremediation and zooremediation for the in situ treatment of polluted sites. These techniques are promising, offering effective and ecologically sound cleanup of spill affected sites. The direct effect of zooremediation is uptake, accumulation, and transformation. The main indirect effect of zooremediation is stimulation on microbial population due to the release of nutrients, enzymes and some bio-active metabolites. In this study, oil degradation in the intertidal zone was accelerated 10 to 20 times using zooremediation in which littoral bivalves M. edulis and M. balthica were used. Survival of the bivalves in this area was much higher than in the control area. It was concluded that the bivalves can take up hydrocarbons from oil contaminated sites and treat them in a manner which makes the petroleum hydrocarbons more biologically available for biodegradation. It was concluded that the presence of bivalves in the shoreline can increase oil bioremediation capacity of natural ecosystems. 21 refs., 3 tabs., 4 figs

  8. Reactor cavity cleanup system shielded filter installation

    International Nuclear Information System (INIS)

    The Seabrook Station reactor cavity cleanup system provides a flow path for refueling pool purification and drain down during plant refueling evolutions. The original system design included refueling pool surface skimmers and drains, a skimmer pump, an unshielded duplex basket type pump suction strainer and interconnecting stainless steel piping. The piping design utilized socket welded joints in small bore pipe with diaphragm values installed in the horizontal pipe runs downstream of the skimmer pump. The previously installed unshielded strainer in addition to the skimmer pump downstream piping components were determined to be inconsistent with Seabrook's proactive approach to dose reduction. To be consistent with ALARA (As Low As Reasonably Achievable) policy, a plant design change was authorized to install a lead shielded filter unit as a replacement for the existing duplex strainer. This filter unit, which utilizes multiple micron rating disposable basket type cartridges, has a threefold function of protecting the skimmer pump from large solids, providing bulk filtration of activated corrosion products from the refueling water in order to minimize CRUD buildup in downstream components, and enabling retrieval of foreign material drawn into the refueling pool drains

  9. Oil spill cleanup for soft sediments

    International Nuclear Information System (INIS)

    A series of experimental trials are in progress to investigate the effectiveness and consequences of oil spill cleanup methods for areas of mud flats and salt marsh. Trials have shown that wheeled and tracked vehicles have limited utility. Field measurements of the load bearing capacity of the mud can show where such vehicles may be used. Lightweight hover craft provide a useful means of transport. Shallow-draft boats can have a useful transport role: whether such craft can be used depends on the local topography and tidal regime. The trials showed that practical problems associated with implementing low-pressure flushing operations (lack of water for flushing, recovery of the flushed oil) can be overcome - although the environmental effects have yet to be assessed. The use of straw matting as a sorbent material was also demonstrated. The objective of the first two phases of the project, reported here, was to select workable methods with a view to subsequently employing them in larger-scale trials. The environmental consequences of using the selected methods will be examined in the later trials

  10. Dillingham plan attacks oil spill cleanup problem

    Energy Technology Data Exchange (ETDEWEB)

    1970-07-27

    A detailed scheme has been proposed for combating oil spills in U.S. offshore waters, hopefully moving oil spill control out of its infancy and at least into the toddler stage. In a comprehensive one-year systems study for the American Petroleum Institute (API), the results of which were released this week, Dillingham Environmental Co., studied major past oil spills and analyzed equipment and control techniques currently available to deal with them. The project director and his 5-man group recommend a multicomponent scheme including booms, absorbents, sinking agents, and chemical dispersants for oil containment and cleanup. The first phase, definition of the nature and scope of the problem, includes analysis of past oil spills to determine the basic characteristics of major oil spills; delineation of geographic regions where oil spills are likely to occur; and analysis of how oil spills affect, and are affected by the environment. The Dillingham report examines the effect of past oil spills on the environment. It concludes that isolated oil spills do not appear to present a major environmental threat resulting in lasting damage.

  11. Cleanup of a jet fuel spill

    Science.gov (United States)

    Fesko, Steve

    1996-11-01

    Eaton operates a corporate aircraft hanger facility in Battle Creek, Michigan. Tests showed that two underground storage tanks leaked. Investigation confirmed this release discharged several hundred gallons of Jet A kerosene into the soil and groundwater. The oil moved downward approximately 30 feet and spread laterally onto the water table. Test results showed kerosene in the adsorbed, free and dissolved states. Eaton researched and investigated three clean-up options. They included pump and treat, dig and haul and bioremediation. Jet fuel is composed of readily biodegradable hydrocarbon chains. This fact coupled with the depth to groundwater and geologic setting made bioremediation the low cost and most effective alternative. A recovery well was installed at the leading edge of the dissolved contamination. A pump moved water from this well into a nutrient addition system. Nutrients added included nitrogen, phosphorous and potassium. Additionally, air was sparged into the water. The water was discharged into an infiltration gallery installed when the underground storage tanks were removed. Water circulated between the pump and the infiltration basin in a closed loop fashion. This oxygenated, nutrient rich water actively and aggressively treated the soils between the bottom of the gallery and the top of the groundwater and the groundwater. The system began operating in August of 1993 and reduced jet fuel to below detection levels. In August of 1995 The State of Michigan issued a clean closure declaration to the site.

  12. SEMINAR PROCEEDINGS: RCRA CORRECTIVE ACTION STABILIZATION TECHNOLOGIES

    Science.gov (United States)

    The seminar publication provides an overview of many technologies that can be used in applying the stabilization concept to RCRA cleanup activities. Technologies discussed include covers, grouting, slurry walls, hydrofracture, horizontal well drilling, a vacuum extraction, and b...

  13. The Secretary's Vision of the Cleanup Program

    Energy Technology Data Exchange (ETDEWEB)

    Golan, Paul

    2003-02-24

    This paper discusses the Secretary of Energy's vision of the cleanup program. Topics include development a new plan to swiftly clean up serious problems at sites and reduce the risks to human health, safety and the environment.

  14. Cleanup Verification Package for the 300-18 Waste Site

    International Nuclear Information System (INIS)

    This cleanup verification package documents completion of remedial action for the 300-18 waste site. This site was identified as containing radiologically contaminated soil, metal shavings, nuts, bolts, and concrete

  15. IMPROVED SILICA GEL CLEANUP METHOD FOR ORGANOPHOSPHORUS PESTICIDES

    Science.gov (United States)

    Quantitative recovery of some organophosphorus pesticide residues has not been possible with existing silica gel-cleanup procedures. The authors have developed a modification that permits quantitative recovery of all organophosphorus pesticides tested, except those with a carbama...

  16. Geographical information system (GIS) support for shoreline cleanup operations

    International Nuclear Information System (INIS)

    A GIS-based system was introduced which was capable of simplifying map production. The importance of an accurate map in shoreline cleanup operations was emphasized. Maps are used to analyze data and are also an effective communication tool, simplifying work coordination between teams. A GIS-based system allows spatial representations to be used much more extensively in integrating information. Two software products, SHORECLEAN and MAPINFO, were used to create a set of maps to be evaluated. The four main categories of tasks involved in shoreline operations were: (1) to collect data on the state of oiling, (2) to plan cleanup operations, (3) to keep track of cleanup operations, and (4) to monitor long-term changes in the state of the shoreline. It was suggested that electronic data captured directly with the portable computer on site on an oiled shoreline, helps accelerate the cleanup decision making process. 14 refs., 2 tabs., 8 figs

  17. Cleanup of large areas contaminated as a result of a nuclear accident

    International Nuclear Information System (INIS)

    The purposes of the report are to provide an overview of the methodology and technology available to clean up contaminated areas and to give preliminary guidance on matters related to the planning, implementation and management of such cleanups. This report provides an integrated overview of important aspects related to the cleanup of very large areas contaminated as a result of a serious nuclear accident, including information on methods and equipment available to: characterize the affected area and the radioactive fallout; stabilize or isolate the contamination; and clean up contaminated urban, rural and forested areas. The report also includes brief sections on planning and management considerations and the transport and disposal of the large volumes of wastes arising from such cleanups. For the purposes of this report, nuclear accidents which could result in the deposition of decontamination over large areas if the outer containment fails badly include: 1) An accident with a nuclear weapon involving detonation of the chemical high explosive but little, if any, nuclear fission. 2) A major loss of medium/high level liquid waste (HLLW) due to an explosion/fire at a storage site for such waste. 3) An accident at a nuclear power plant (NPP), for example a loss of coolant accident, which results in some core disruption and fuel melting. 4) An accident at an NPP involving an uncontrolled reactivity excursion resulting in the violent ejection of a reactor core material and rupture of the containment building. 117 refs, 32 figs, 12 tabs

  18. Proceedings of the seventh annual gasification and gas stream cleanup systems contractors review meeting: Volume 2

    Energy Technology Data Exchange (ETDEWEB)

    Ghate, M.R.; Markel, K.E. Jr.; Jarr, L.A.; Bossart, S.J. (eds.)

    1987-08-01

    On June 16 through 19, 1987, METC sponsored the Seventh Annual Gasification and Gas Stream Cleanup Systems Contractors Review Meeting which was held at the Sheraton Lakeview Conference Center in Morgantown, West Virginia. The primary purpose of the meeting was threefold: to review the technical progress and current status of the gasification and gas stream cleanup projects sponsored by the Department of Energy; to foster technology exchange among participating researchers and other technical communities; to facilitate interactive dialogues which would identify research needs that would make coal-based gasification systems more attractive economically and environmentally. More than 310 representatives of Government, academia, industry, and foreign energy research organizations attended the 4-day meeting. Fifty-three papers and thirty poster dsplays were presented summarizing recent developments in the gasification and gas stream cleanup programs. Volume II covers papers presented at sessions 5 and 6 on system for the production of synthesis gas, and on system for the production of power. All papers have been processed for inclusion in the Energy Data Base.

  19. Proceedings of the seventh annual gasification and gas stream cleanup systems contractors review meeting: Volume 1

    Energy Technology Data Exchange (ETDEWEB)

    Ghate, M.R.; Markel, K.E. Jr.; Jarr, L.A.; Bossart, S.J. (eds.)

    1987-08-01

    On June 16 through 19, 1987, METC sponsored the Seventh Annual Gasification and Gas Stream Cleanup Systems Contractors Review Meeting which was held at the Sheraton Lakeview Conference Center in Morgantown, West Virginia. The primary purpose of the meeting was threefold: to review the technical progress and current status of the gasification and gas stream cleanup projects sponsored by the Department of Energy; to foster technology exchange among participating researchers and other technical communities; to facilitate interactive dialogues which would identify research needs that would make coal-based gasification systems more attractive economically and environmentally. More than 310 representatives of Government, academia, industry, and foreign energy research organizations attended the 4-day meeting. Fifty-three papers and thirty poster displays were presented summarizing recent developments in the gasification and gas stream cleanup programs. Volume I covers information presented at sessions 1 through 4 on systems for the production of Co-products and industrial fuel gas, environmental projects, and components and materials. Individual papers have been processed for the Energy Data Base.

  20. Budgeting for environmental clean-up of Army bases

    OpenAIRE

    Goette, Herbert

    1996-01-01

    Approved for public release; distribution is unlimited The United States Army obtained congressional approval in 1995 to close or realign 40 installations. These actions create a unique opportunity for the civilian communities surrounding the installations to reuse them to satisfy commercial or community needs. However, future reuse can be impeded by the need for environmental clean-up, which is an expensive business. The current clean-up cost estimate for 32 of the 40 installations is $1 ...

  1. Optimal Discounting of Benefits From Cleanup at Waste Sites

    OpenAIRE

    Lyon, Kenneth S.; Caliendo, Frank

    2005-01-01

    This paper uses a general equilibrium optimal growth model to discuss the role of optimal discounting of future benefits from cleanup at high level toxic waste sites. Cleanup simultaneously generates two streams of benefits. One of these is directly from utility and the other is indirectly from the added productivity of workers. We note that the optimal discount rate is different for these two types of benefits. Along the optimal path, the former are discounted at the rate of time preference ...

  2. An investigation into improving non-NPS cleanup process.

    OpenAIRE

    Whitson, Mark E.

    1992-01-01

    Approved for public release; distribution is unlimited This research investigates the process required to remediate (cleanup) non-National Priorities List (non-NPL) hazardous waste sites. The research addresses the many laws and regulations on hazardous waste cleanup specific to Department of Defence and Navy processes to correct and remediate existing sites. The thesis gathered data through survey of the seven Engineering Field Divisions within the Naval Facilities Command organi...

  3. Cleanup Verification Package for the 118-F-2 Burial Ground

    International Nuclear Information System (INIS)

    This cleanup verification package documents completion of remedial action, sampling activities, and compliance with cleanup criteria for the 118-F-2 Burial Ground. This burial ground, formerly called Solid Waste Burial Ground No. 1, was the original solid waste disposal site for the 100-F Area. Eight trenches contained miscellaneous solid waste from the 105-F Reactor and one trench contained solid waste from the biology facilities

  4. Solvent degradation and cleanup: a survey and recent ORNL studies

    International Nuclear Information System (INIS)

    This paper surveys the mechanisms for degradation of the tributyl phosphate and diluent components of Purex solvent by acid and radiation, reviews the problems encountered in plant operations resulting from the presence of these degradation products, and discusses methods for minimizing the formation of degradation products and accomplishing their removal. Scrubbing solutions containing sodium carbonate or hydroxylamine salts and secondary cleanup of solvents using solid sorbents are evaluated. Finally, recommendations for improved solvent cleanup are presented. 50 references, 4 figures, 3 tables

  5. Block Diagram of a Black and White TV. Lesson Plan No. 1, Electronic Tech 1.

    Science.gov (United States)

    Hollandsworth, Donald S.

    This lesson, which is part of a course in electronics technology, explains the workings of a black-and-white television. It covers the structure and function of the 18 structural blocks of black-and-white television sets. The following materials are included: a lesson plan, transparency masters, and student handouts. The lesson plan includes lists…

  6. Marine Hydrokinetic Energy Regulators Workshop: Lessons from Wind

    Energy Technology Data Exchange (ETDEWEB)

    Baring-Gould, E. Ian

    2015-09-03

    Ian Baring-Gould presented these lessons learned from wind energy to an audience of marine hydrokinetic regulators. Lessons learned spanned the areas of technology advances, using collaborative approaches to involve key stakeholders; using baseline studies to measure and prioritize wildlife impacts, and look at avoidance and mitigation options early in the process.

  7. Lessons learned bulletin

    International Nuclear Information System (INIS)

    During the past four years, the Department of Energy -- Savannah River Operations Office and the Westinghouse Savannah River Company (WSRC) Environmental Restoration (ER) Program completed various activities ranging from waste site investigations to closure and post closure projects. Critiques for lessons learned regarding project activities are performed at the completion of each project milestone, and this critique interval allows for frequent recognition of lessons learned. In addition to project related lessons learned, ER also performs lessons learned critiques. T'he Savannah River Site (SRS) also obtains lessons learned information from general industry, commercial nuclear industry, naval nuclear programs, and other DOE sites within the complex. Procedures are approved to administer the lessons learned program, and a database is available to catalog applicable lessons learned regarding environmental remediation, restoration, and administrative activities. ER will continue to use this database as a source of information available to SRS personnel

  8. Lessons Learned and Technical Standards: A Logical Marriage

    Science.gov (United States)

    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.

  9. Power Lessons

    Science.gov (United States)

    Kagan, Eve

    2010-01-01

    As a teaching artist (TA) working primarily with teens, the author has often wrestled with how to make theatre relevant and personal to a population enmeshed in the age of immediate gratification, where technology provides a world of savvy distraction at one's fingertips. In this article, the author reflects on Augusto Boal's work and the role of…

  10. Lessons Learned in Engineering

    Science.gov (United States)

    Blair, J. C.; Ryan, R. S.; Schutzenhofer, L. A.

    2011-01-01

    This Contractor Report (CR) is a compilation of Lessons Learned in approximately 55 years of engineering experience by each James C. Blair, Robert S. Ryan, and Luke A. Schutzenhofer. The lessons are the basis of a course on Lessons Learned that has been taught at Marshall Space Flight Center. The lessons are drawn from NASA space projects and are characterized in terms of generic lessons learned from the project experience, which are further distilled into overarching principles that can be applied to future projects. Included are discussions of the overarching principles followed by a listing of the lessons associated with that principle. The lesson with sub-lessons are stated along with a listing of the project problems the lesson is drawn from, then each problem is illustrated and discussed, with conclusions drawn in terms of Lessons Learned. The purpose of this CR is to provide principles learned from past aerospace experience to help achieve greater success in future programs, and identify application of these principles to space systems design. The problems experienced provide insight into the engineering process and are examples of the subtleties one experiences performing engineering design, manufacturing, and operations.

  11. Archiving Data from New Survey Technologies: Lessons Learned on Enabling Research with High-Precision Data While Preserving Participant Privacy: Preprint

    Energy Technology Data Exchange (ETDEWEB)

    Gonder, J.; Burton, E.; Murakami, E.

    2014-11-01

    During the past 15 years, increasing numbers of organizations and planning agencies have begun collecting high-resolution Global Positioning System (GPS) travel data. Despite the significant effort and expense to collect it, privacy concerns often lead to underutilization of the data. To address this dilemma of providing data access while preserving privacy, the National Renewable Energy Laboratory, with support from the U.S. Department of Transportation and U.S. Department of Energy, established the Transportation Secure Data Center (TSDC). Lessons drawn from best-practice examples from other data centers have helped shape the structure and operating procedures for the TSDC, which functions under the philosophy of first and foremost preserving privacy, but doing so in a way that balances security with accessibility and usability of the data for legitimate research. This paper provides details about the TSDC approach toward achieving these goals, which has included creating a secure enclave with no external access for backing up and processing raw data, a publicly accessible website for downloading cleansed data, and a secure portal environment through which approved users can work with detailed spatial data using a variety of tools and reference information. This paper also describes lessons learned from operating the TSDC with respect to improvements in GPS data handling, processing, and user support, along with plans for continual enhancements to better support the needs of both data providers and users and to thus advance the research value derived from such valuable data.

  12. DOE Hanford Network Upgrades and Disaster Recovery Exercise Support the Cleanup Mission Now and into the Future

    Energy Technology Data Exchange (ETDEWEB)

    Eckman, Todd J.; Hertzel, Ali K.; Lane, James J.

    2013-11-07

    ; and, Select set of production applications and data. The primary objective of the exercise was to test COOP around the emergency operations at Hanford to provide information on capabilities and dependencies of the current system to insure improved focus of emergency, safety and security capacity in a disaster situation. The integration of the DR test into the ET-50 project allowed the testing of COOP at Hanford and allowed the lessons learned to be defined. These lessons learned have helped improve the understanding of Hanford's COOP capabilities and will be critical for future planning. With the completion of the Hanford Federal Cloud network upgrades and the disaster recovery exercise, the MSA has a clearer path forward for future technology implementations as well as network improvements to help shape the usability and reliability of the Hanford network in support of the cleanup mission.

  13. Superfund at work: Hazardous waste cleanup efforts nationwide, fall 1992. (American Thermostat Corporation, New York)

    International Nuclear Information System (INIS)

    EPA's Superfund program decisively mitigated dangerously high levels of toxic chemicals at New York's American Thermostat Corporation (ATC) hazardous waste site. Superfund staff: quickly sampled area drinking wells and treated over 10 million gallons of contaminated ground water; used innovative technologies to reduce on-site soil and ground water contamination; secured a permanent alternate water supply for affected residents; and initiated a public outreach effort which gained support for cleanup activities. The American Thermostat site is a prime example of EPA's commitment to preserve the health and welfare of citizens and the environment

  14. Design of the JAERI Fuel Cleanup System for the Tritium Systems Test Assembly

    International Nuclear Information System (INIS)

    TSTA is operated under the US-Japan collaboration program for the study of fusion fuel cycle technology. A plasma exhaust processing subsystem, JAERI Fuel Cleanup (JFCU) was fabricated in Japan, and installed at the TSTA as a major subsystem of the TSTA loop under the agreement. This process is based on some Japanese developed components, and designed to meet TSTA requirements by both parties. This document describes all the technical and safety features in accordance with the LANL QA format. The process has a capability to process simulated plasma exhaust at the flow rate of 15 mol/h, that is 1/5 for ITER. (author)

  15. NASA Engineering Network Lessons Learned

    Data.gov (United States)

    National Aeronautics and Space Administration — The NASA Lessons Learned system provides access to official, reviewed lessons learned from NASA programs and projects. These lessons have been made available to the...

  16. Particulate hot gas stream cleanup technical issues

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-09-01

    This is the eleventh in a series of quarterly reports describing the activities performed under Contract No. DE-AC21-94MC31160. Analyses of Hot Gas Stream Cleanup (HGCU) ashes and descriptions of filter performance address aspects of filter operation that are apparently linked to the characteristics of the collected ash or the performance of the ceramic bed filter elements. Task 1 is designed to generate a data base of the key characteristics of ashes collected from operating advanced particle filters (APFS) and to relate these ash properties to the operation and performance of these filters. Task 2 concerns testing and failure analysis of ceramic filter elements. Under Task 1 during the past quarter, analyses were completed on samples obtained during a site visit to the Power Systems Development Facility (PSDF). Analyses are in progress on ash samples from the Advanced Particulate Filter (APF) at the Pressurized Fluidized-Bed Combustor (PFBC) that was in operation at Tidd and ash samples from the Pressurized Circulating Fluid Bed (PCFB) system located at Karhula, Finland. An additional analysis was performed on a particulate sample from the Transport Reactor Demonstration Unit (TRDU) located at the University of North Dakota Energy and Environmental Research Center. A manuscript and poster were prepared for presentation at the Advanced Coal-Based Power and Environmental Systems `97 Conference scheduled for July 22 - 24, 1997. A summary of recent project work covering the mechanisms responsible for ash deposit consolidation and ash bridging in APF`s collecting PFB ash was prepared and presented at FETC-MGN in early July. The material presented at that meeting is included in the manuscript prepared for the Contractor`s Conference and also in this report. Task 2 work during the past quarter included mechanical testing and microstructural examination of Schumacher FT20 and Pall 326 as- manufactured, after 540 hr in service at Karhula, and after 1166 hr in service at

  17. Lessons learnt from clean-up of urban area after Chernobyl accident

    International Nuclear Information System (INIS)

    The accident at Chernobyl NPP showed that huge territories including densely populated areas can be exposed to contamination as a result of unforeseen circumstances. The Chernobyl accident forced reconsidering of many regulations in the field of population protection and was a powerful incentive to development of many applied sciences. In 1992-1996, an international team of scientists carried out investigations on ECP-4 project 'Strategies of Decontamination'. Including of an independent sub-project 'Urban environment and countermeasures' into the project of French-German initiative on Chernobyl 'Radioecology' was the extension of work on study of urban environment contamination. The aim of the projects ware to synthesize the large body of experimental data received during elimination of the consequences of the Chernobyl accident and in the course of special studies carried out in former USSR and later in Ukraine, Belarus and Russia, and prediction on this basis of radionuclide behavior in the urban environment. In 2003 the EMRAS (Environmental Modelling for Radiation Safety) project was organized by the International Atomic Energy Agency (IAEA). The Urban Remediation Working Group of the EMRAS has focused on the assessment of the effectiveness of countermeasures employed in urban settings after releases of radioactivity. This review considers results of principally Ukrainian, Russian, and Belarus researchers who worked on these projects. Over the 20-year period a number of publications have reviewed the effectiveness of countermeasures, particularly those used after the Chernobyl accident. The general principles of radiological protection are based on radiation doses, intervention levels and effective countermeasures. Decontamination of densely built-up cities constructed of various building materials with total surface area significantly exceeding the administrative city area is an extremely difficult task. In the Late-Phase Response, 'classical' radiological principles and criteria need detailed clarification. The specific aspect of this phase is the problem of social protection and social rehabilitation. The rehabilitation of the contaminated territories has been considered as a combination of measures directed at improvement of environmental conditions and the quality of life. While planning decontamination for the long term, it is important to take into account the contribution of external dose to the total (external and internal) dose. The materialization of the social aspect is a very important characteristic of this phase. Unfortunately, in spite of all the efforts, the negative consequences of the accident have not been completely overcome. Nevertheless, the data array that has been accumulated since the accident allows unbiased assessment of not only the errors but also the achievements of the stupendous work on minimization of the consequences of the accident and drawing conclusions important for the future. (author)

  18. PROGRESS and CHALLENGES IN CLEANUP OF HANFORDS TANK WASTES

    International Nuclear Information System (INIS)

    The River Protection Project (RPP), which is managed by the Department of Energy (DOE) Office of River Protection (ORP), is highly complex from technical, regulatory, legal, political, and logistical perspectives and is the largest ongoing environmental cleanup project in the world. Over the past three years, ORP has made significant advances in its planning and execution of the cleanup of the Hartford tank wastes. The 149 single-shell tanks (SSTs), 28 double-shell tanks (DSTs), and 60 miscellaneous underground storage tanks (MUSTs) at Hanford contain approximately 200,000 m3 (53 million gallons) of mixed radioactive wastes, some of which dates back to the first days of the Manhattan Project. The plan for treating and disposing of the waste stored in large underground tanks is to: (1) retrieve the waste, (2) treat the waste to separate it into high-level (sludge) and low-activity (supernatant) fractions, (3) remove key radionuclides (e.g., Cs-137, Sr-90, actinides) from the low-activity fraction to the maximum extent technically and economically practical, (4) immobilize both the high-level and low-activity waste fractions by vitrification, (5) interim store the high-level waste fraction for ultimate disposal off-site at the federal HLW repository, (6) dispose the low-activity fraction on-site in the Integrated Disposal Facility (IDF), and (7) close the waste management areas consisting of tanks, ancillary equipment, soils, and facilities. Design and construction of the Waste Treatment and Immobilization Plant (WTP), the cornerstone of the RPP, has progressed substantially despite challenges arising from new seismic information for the WTP site. We have looked closely at the waste and aligned our treatment and disposal approaches with the waste characteristics. For example, approximately 11,000 m3 (2-3 million gallons) of metal sludges in twenty tanks were not created during spent nuclear fuel reprocessing and have low fission product concentrations. We plan to

  19. Worldwide analysis of marine oil spill cleanup cost factors

    International Nuclear Information System (INIS)

    The many factors that influence oil spill response costs were discussed with particular emphasis on how spill responses differ around the world because of differing cultural values, socio-economic factors and labor costs. This paper presented an analysis of marine oil spill cleanup costs based on the country, proximity to shoreline, spill size, oil type, degree of shoreline oiling and cleanup methodology. The objective was to determine how each factor impacts per-unit cleanup costs. Near-shore spills and in-port spills were found to be 4-5 times more expensive to clean than offshore spills. Responses to spills of heavy fuels also cost 10 times more than for lighter crudes and diesel. Spill responses for spills under 30 tonnes are 10 times more costly than on a per-unit basis, for spills of 300 tonnes. A newly developed modelling technique that can be used on different types of marine spills was described. It is based on updated cost data acquired from case studies of more than 300 spills in 40 countries. The model determines a per-unit cleanup cost estimation by taking into consideration oil type, location, spill size, cleanup methodology, and shoreline oiling. It was concluded that the actual spill costs are totally dependent on the actual circumstances of the spill. 13 refs., 10 tabs., 3 figs

  20. Amine-based post-combustion CO2 capture in air-blown IGCC systems with cold and hot gas clean-up

    International Nuclear Information System (INIS)

    Highlights: • Hot fuel gas clean-up is a very favorable technology for IGCC concepts. • IGCC net efficiency reduces to 41.5% when realizing post-combustion CO2 capture. • Complex IGCC layouts are necessary if exhaust gas recirculation is realized. • IGCC performance does not significantly vary with exhaust gas recirculation. - Abstract: This paper focuses on the thermodynamic performance of air-blown IGCC systems with post-combustion CO2 capture by chemical absorption. Two IGCC technologies are investigated in order to evaluate two different strategies of coal-derived gas clean-up. After outlining the layouts of two power plants, the first with conventional cold gas clean-up and the second with hot gas clean-up, attention is paid to the CO2 capture station and to issues related to exhaust gas recirculation in combined cycles. The results highlight that significant improvements in IGCC performance are possible if hot coal-derived gas clean-up is realized before the syngas fuels the combustion turbine, so the energy cost of CO2 removal in an amine-based post-combustion mode is less strong. In particular, IGCC net efficiency as high as 41.5% is calculated, showing an interesting potential if compared to the one of IGCC systems with pre-combustion CO2 capture. Thermodynamic effects of exhaust gas recirculation are investigated as well, even though IGCC performance does not significantly vary against a more complicated plant layout

  1. Deriving cleanup guidelines for radionuclides at Brookhaven National Laboratory

    International Nuclear Information System (INIS)

    Past activities at Brookhaven National Laboratory (BNL) resulted in soil and groundwater contamination. As a result, BNL was designated a Superfund site under the Comprehensive Environmental Response Compensation and Liability Act (CERCLA). BNL's Office of Environmental Restoration (OER) is overseeing environmental restoration activities at the Laboratory. With the exception of radium, there are no regulations or guidelines to establish cleanup guidelines for radionuclides in soils at BNL. BNL must derive radionuclide soil cleanup guidelines for a number of Operable Units (OUs) and Areas of Concern (AOCs). These guidelines are required by DOE under a proposed regulation for radiation protection of public health and the environment as well as to satisfy the requirements of CERCLA. The objective of this report is to propose a standard approach to deriving risk-based cleanup guidelines for radionuclides in soil at BNL. Implementation of the approach is briefly discussed

  2. Implications of the KONVERGENCE Model for Difficult Cleanup Decisions

    Energy Technology Data Exchange (ETDEWEB)

    Piet, Steven James; Dakins, Maxine Ellen; Gibson, Patrick Lavern; Joe, Jeffrey Clark; Kerr, Thomas A; Nitschke, Robert Leon

    2002-08-04

    Abstract—Some cleanup decisions, such as cleanup of intractable contaminated sites or disposal of spent nuclear fuel, have proven difficult to make. Such decisions face high resistance to agreement from stakeholders possibly because they do not trust the decision makers, view the consequences of being wrong as too high, etc. Our project’s goal is to improve sciencebased cleanup decision-making. This includes diagnosing intractable situations, as a step to identifying a path toward sustainable solutions. Companion papers describe the underlying philosophy of the KONVERGENCE Model for Sustainable Decisions,1 and the overall framework and process steps.2 Where knowledge, values, and resources converge (the K, V, and R in KONVERGENCE), you will find a sustainable decision – a decision that works over time. For intractable cases, serious consideration of the adaptable class of alternatives is warranted – if properly implemented and packaged.

  3. Coolant clean-up method in PWR type reactors

    International Nuclear Information System (INIS)

    Purpose: To perform coolant clean-up while climinating the need of replacing boric acid with plant primary coolants and using anionic exchange resins in which the amount of Cl anionic exchange resins as impurities is decreased. Method: OH type anionic exchange resins are previously treated with an aqueous boric acid not containing radioactivity at a place other than the equipment for use (that is desalting tower) into boric acid type anionic ion exchange resins and, thereafter, the boric acid type anionic exchange resins are filled into a desalting tower of the clean-up system to perform primary coolant clean-up. In this case, since the resins can be used directly for the purpose without performing boric acid replacement after charging into the equipment for use, the procedures in the plant being in operation can be saved. (Yoshino, Y.)

  4. Interim Site Assessment and Clean-up Guidebook

    International Nuclear Information System (INIS)

    In April 1995 an Interim Site Investigation and Clean-up Guidebook (for petroleum hydrocarbon and volatile organic compound impacted sites) was developed for public use. The purpose of the Guidebook was to offer a new approach to the site cleanup process: one that reduces time, cuts costs, and establishes a defined endpoint for investigations and cleanup actions. The Guidebook provided a matrix to screen for low-risk contaminated sites. After a year of use, the Guidebook was revised in May 1996. The most notable change was in the Petroleum Hydrocarbon Section and the modification of the screening table for petroleum hydrocarbon contaminated sites. The changes considered the strong influence of lithology on contaminant transport and recognized the large attenuation of the long chain, heavy oil and tar, hydrocarbons in soils

  5. Uranium mill tailings cleanup: Federal leadership at last

    International Nuclear Information System (INIS)

    The Department of Energy has proposed legislation that would allow it to enter into cooperative agreements with various States to clean up residual radioactive materials--commonly called uranium mill tailings--at 22 inactive uranium mills. About 25 million tons of mill tailings have accumulated at these sites since the 1940s. GAO analyzed the need for, and adequacy of, the proposed legislation and recommends that the cleanup program be endorsed. While the Federal Government has no apparent legal responsibility for such a cleanup, it does have a moral responsibility since the mills primarily produced uranium for Federal programs. Further, it is the only organization able to undertake such a cleanup program on a comprehensive basis. GAO also suggests several areas where the proposed legislation could be strengthened

  6. Deriving cleanup guidelines for radionuclides at Brookhaven National Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    Meinhold, A.F.; Morris, S.C.; Dionne, B.; Moskowitz, P.D.

    1997-01-01

    Past activities at Brookhaven National Laboratory (BNL) resulted in soil and groundwater contamination. As a result, BNL was designated a Superfund site under the Comprehensive Environmental Response Compensation and Liability Act (CERCLA). BNL`s Office of Environmental Restoration (OER) is overseeing environmental restoration activities at the Laboratory. With the exception of radium, there are no regulations or guidelines to establish cleanup guidelines for radionuclides in soils at BNL. BNL must derive radionuclide soil cleanup guidelines for a number of Operable Units (OUs) and Areas of Concern (AOCs). These guidelines are required by DOE under a proposed regulation for radiation protection of public health and the environment as well as to satisfy the requirements of CERCLA. The objective of this report is to propose a standard approach to deriving risk-based cleanup guidelines for radionuclides in soil at BNL. Implementation of the approach is briefly discussed.

  7. Library 101: Why, How, and Lessons Learned

    Science.gov (United States)

    Porter, Michael; King, David Lee

    2010-01-01

    This article describes how and why the Library 101 Project was created and the lessons that the developers learned out of this project. The Library 101 is a project that challenges librarians to revise the paradigm of "basic" library services in order to remain relevant in this technology-driven world. It was developed by Michael Porter,…

  8. Cleanup/stimulation of a horizontal wellbore using propellants

    Energy Technology Data Exchange (ETDEWEB)

    Rougeot, J.E.; Lauterbach, K.A.

    1993-01-01

    This report documents the stimulation/cleanup of a horizontal well bore (Wilson 25) using propellants. The Wilson 25 is a Bartlesville Sand well located in the Flatrock Field, Osage County, Oklahoma. The Wilson 25 was drilled to determine if horizontal drilling could be used as a means to economically recover primary oil that had been left in place in a mostly abandoned oil field because of the adverse effects of water coning. Pump testing of the Wilson 25 horizontal well bore before cleanup or stimulation produced 6 barrels of oil and .84 barrels of water per day. The high percentage of daily oil production to total daily fluid production indicated that the horizontal well bore had accessed potentially economical oil reserves if the fluid production rate could be increased by performing a cleanup/stimulation treatment. Propellants were selected as an inexpensive means to stimulate and cleanup the near well bore area in a uniform manner. The ignition of a propellant creates a large volume of gas which penetrates the formation, creating numerous short cracks through which hydrocarbons can travel into the well bore. More conventional stimulation/cleanup techniques were either significantly more expensive, less likely to treat uniformly, or could not be confined to the near well bore area. Three different propellant torpedo designs were tested with a total of 304' of horizontal well bore being shot and producible. The initial test shot caused 400' of the horizontal well bore to become plugged off, and subsequently it could not be production tested. The second and third test shots were production tested, with the oil production being increased 458% and 349%, respectively, on a per foot basis. The Wilson 25 results indicate that a propellant shot treatment is an economically viable means to cleanup/stimulate a horizontal well bore.

  9. Cleanup standards for inland oil spills : a review

    International Nuclear Information System (INIS)

    There are a wide range of issues that should be addressed in the development of oil spill cleanup criteria and standards, yet there is currently no clear and concise decision procedure that can be applied by a spill response management team. This paper presented three inland spill cases which demonstrated different parts of the spectrum of cleanup standards. These case study examples showed that there is a progression with increasing levels of concern and increasing levels of treatment or cleanup effort. The first case study described the removal of mobile oil in a remote location. It involved a series of large crude oil spills in 1994 from sections of the Vosei-Golovnye pipeline in the Komi Republic of Russia. The second case study described multiple standards for the removal of oil residues and oiled vegetation in a populated rural region. It involved a spill of 29,000 bbl of mixed crude oil and condensate in January 2000 from the OSSA II pipeline at the Rio Desaguadero river crossing in Bolivia. The third case study described the restoration of a salmon spawning stream to a lowest effects concentration. It involved a gasoline release, explosion and fire that resulted from the Olympic Pipe Line rupture in June 1999 in Bellingham, Washington. Each of the three response operations was based on different objectives and different cleanup standards for the completion of the cleanup. The process by which criteria are developed for inland oil spills was described. The choice of treatment ranges from no treatment to a zero tolerance position. Deciding which measure is appropriate is a social and political process that is not based on science alone. While soil and water quality standards have been established by government agencies, these are intended mostly for chronic situations rather than for one-time events such as oil spills. Almost all assessments of an appropriate cleanup program consider the net environmental benefits (NEB) and risk associated with different

  10. Needs for Risk Informing Environmental Cleanup Decision Making - 13613

    International Nuclear Information System (INIS)

    This paper discusses the needs for risk informing decision making by the U.S. Department of Energy (DOE) Office of Environmental Management (EM). The mission of the DOE EM is to complete the safe cleanup of the environmental legacy brought about from the nation's five decades of nuclear weapons development and production and nuclear energy research. This work represents some of the most technically challenging and complex cleanup efforts in the world and is projected to require the investment of billions of dollars and several decades to complete. Quantitative assessments of health and environmental risks play an important role in work prioritization and cleanup decisions of these challenging environmental cleanup and closure projects. The risk assessments often involve evaluation of performance of integrated engineered barriers and natural systems over a period of hundreds to thousands of years, when subject to complex geo-environmental transformation processes resulting from remediation and disposal actions. The requirement of resource investments for the cleanup efforts and the associated technical challenges have subjected the EM program to continuous scrutiny by oversight entities. Recent DOE reviews recommended application of a risk-informed approach throughout the EM complex for improved targeting of resources. The idea behind this recommendation is that by using risk-informed approaches to prioritize work scope, the available resources can be best utilized to reduce environmental and health risks across the EM complex, while maintaining the momentum of the overall EM cleanup program at a sustainable level. In response to these recommendations, EM is re-examining its work portfolio and key decision making with risk insights for the major sites. This paper summarizes the review findings and recommendations from the DOE internal reviews, discusses the needs for risk informing the EM portfolio and makes an attempt to identify topics for R and D in integrated

  11. Sodium cleanup system of fast reactor NPP (retrospectively - prospective outlook)

    International Nuclear Information System (INIS)

    When reasoned the coolant cleanup system of perspective fast reactor NPPs the traditional methods of coolant purification (cold traps, sorbents for cesium) as well as possibility to use hot traps for sodium purification from oxygen have been analyzed. It is shown that cold trap must be a mandatory element of cleanup system built in tank; hot traps can provide sodium coolant purification from oxygen during NPP nominal condition. Recommendations on further lines of work for improving cold traps characteristics are given, and further lines of work for hot traps parameters optimization are considered

  12. Lessons in Everyday Leadership

    Science.gov (United States)

    Boesch, Kit

    2009-01-01

    In this article, the author presents and discusses some of the lessons she has learned in everyday leadership. It's the kind of leadership one learns when he or she doesn't expect it--and the kind of lessons one teaches when he or she doesn't even know he or she is doing it.

  13. Automatic Dance Lesson Generation

    Science.gov (United States)

    Yang, Yang; Leung, H.; Yue, Lihua; Deng, LiQun

    2012-01-01

    In this paper, an automatic lesson generation system is presented which is suitable in a learning-by-mimicking scenario where the learning objects can be represented as multiattribute time series data. The dance is used as an example in this paper to illustrate the idea. Given a dance motion sequence as the input, the proposed lesson generation…

  14. Don Quixote. [Lesson Plan].

    Science.gov (United States)

    Rooks, Kristen

    Based on Miguel de Cervantes' novel "Don Quixote," this lesson plan presents activities designed to help students understand that Quixote's misperceptions are understandable; writers often describe one object to sound as if it were something else; and metaphors help readers see with new eyes. The main activity of the lesson involves students…

  15. TPACK in practice: A qualitative study on technology integrated lesson planning and implementation of Turkish pre-service teachers of English

    OpenAIRE

    KURT, Gökçe; Akyel, Ayşe; Koçoğlu, Zeynep; Mishra, Punya

    2014-01-01

    The issue of what teachers need to know about technology for effective teaching has been the centre of intense debate in the recent past. Technological Pedagogical Content Knowledge (TPACK) has been proposed as a conceptual framework to describe the knowledge base teachers need for effective technology integration. The present study aimed to investigate whether and/or how Turkish pre-service teachers of English reflected their TPACK, as developed in a design study integrating coursework and f...

  16. Building organizational technical capabilities: a new approach to address the office of environmental management cleanup challenges in the 21. century

    International Nuclear Information System (INIS)

    The United States Department of Energy (DOE), Office of Environmental Management (EM) is responsible for the nations nuclear weapons program legacy wastes cleanup. The EM cleanup efforts continue to progress, however the cleanup continues to be technologically complex, heavily regulated, long-term, and a high life cycle cost estimate (LCCE) effort. Over the past few years, the EM program has undergone several changes to accelerate its cleanup efforts with varying degrees of success. Several cleanup projects continued to experience schedule delays and cost growth. The schedule delays and cost growth have been attributed to several factors such as changes in technical scope, regulatory and safety considerations, inadequacy of acquisition approach and project management. This article will briefly review the background and schools of thought on strategic management and organizational change practiced in the United States over the last few decades to improve an organisation's competitive edge and cost performance. The article will briefly review examples such as the change at General Electric, and the recent experience obtained from the nuclear industry, namely the long-term response to the 1986 Chernobyl accident. The long-term response to Chernobyl, though not a case of organizational change, could provide some insight in the strategic management approaches used to address people issues. The article will discuss briefly EM attempts to accelerate cleanup over the past few years, and the subsequent paradigm shift. The paradigm shift targets enhancing and/or creating organizational capabilities to achieve cost savings. To improve its ability to address the 21. century environmental cleanup challenges and achieve cost savings, EM has initiated new corporate changes to develop new and enhance existing capabilities. These new and enhanced organizational capabilities include a renewed emphasis on basics, especially technical capabilities including safety, project management

  17. Lessons learned from early criticality accidents

    International Nuclear Information System (INIS)

    Four accidents involving the approach to criticality occurred during the period July, 1945, through May, 1996. These have been described in the format of the OPERATING EXPERIENCE WEEKLY SUMMARY which is distributed by the Office of Nuclear and Facility Safety. Although the lessons learned have been incorporated in standards, codes, and formal procedures during the last fifty years, this is their first presentation in this format. It is particularly appropriate that they be presented in the forum of the Nuclear Criticality Technology Safety Project Workshop closest to the fiftieth anniversary of the last of the four accidents, and that which was most instrumental in demonstrating the need to incorporate lessons learned

  18. Hanford groundwater cleanup and restoration conceptual study

    International Nuclear Information System (INIS)

    The purpose of the sitewide groundwater restoration study is to (1)develop groundwater use scenarios, (2) identify potential groundwater restoration technologies that may be appropriate at the Hanford Site, (3) recommend sitewide engineering systems.that satisfy the restoration objectives for each groundwater-use scenario, and (4) identify emerging technologies or research and development (R ampersand D) needs that have potential at the Hanford Site. Three groundwater restoration-use scenarios have been developed to meet specific objectives and land uses at the Hanford Site. These scenarios are described in detail within the next section. This report presents three recommended sitewide systems, one for each scenario, that are engineered to a preconceptual level of detail. Within each scenario, the engineered system is intended to restore groundwater on a sitewide basis, rather than to collect individual systems for each operable unit. Although aggregate areas (100, 200, 300, and 600) may have distinct restoration systems, these systems must be compatible and integrated for successful implementation and operation within each scenario. This report also identifies technologies that were considered during the formulation of the sitewide engineered systems. New and emerging technologies or R ampersand D needs are discussed along with their application and potential to each groundwater-use scenario

  19. Accelerated cleanup of mixed waste units on the Hanford Site, Richland, Washington

    International Nuclear Information System (INIS)

    This report provides a status of the expedited response action (ERA) projects currently being implemented at the Hanford Site. A detailed review of the accomplishments to date, the technologies employed, the problems encountered, and an analysis of the lessons learned are included. A total of nine ERAs have been initiated at the Hanford Site and are presented in a case study format with emphasis on the progress being made and the challenges ahead

  20. In-Situ Resource Utilization for Space Exploration: Resource Processing, Mission-Enabling Technologies, and Lessons for Sustainability on Earth and Beyond

    Science.gov (United States)

    Hepp, A. F.; Palaszewski, B. A.; Landis, G. A.; Jaworske, D. A.; Colozza, A. J.; Kulis, M. J.; Heller, R. S.

    2015-01-01

    As humanity begins to reach out into the solar system, it has become apparent that supporting a human or robotic presence in transit andor on station requires significant expendable resources including consumables (to support people), fuel, and convenient reliable power. Transporting all necessary expendables is inefficient, inconvenient, costly, and, in the final analysis, a complicating factor for mission planners and a significant source of potential failure modes. Over the past twenty-five years, beginning with the Space Exploration Initiative, researchers at the NASA Glenn Research Center (GRC), academic collaborators, and industrial partners have analyzed, researched, and developed successful solutions for the challenges posed by surviving and even thriving in the resource limited environment(s) presented by near-Earth space and non-terrestrial surface operations. In this retrospective paper, we highlight the efforts of the co-authors in resource simulation and utilization, materials processing and consumable(s) production, power systems and analysis, fuel storage and handling, propulsion systems, and mission operations. As we move forward in our quest to explore space using a resource-optimized approach, it is worthwhile to consider lessons learned relative to efficient utilization of the (comparatively) abundant natural resources and improving the sustainability (and environment) for life on Earth. We reconsider Lunar (and briefly Martian) resource utilization for potential colonization, and discuss next steps moving away from Earth.

  1. Planning for cleanup of large areas contaminated as a result of a nuclear accident

    International Nuclear Information System (INIS)

    The cleanup of large areas of contaminated as a result of an accident at a nuclear facility could cost hundreds of millions of dollars and cause inconvenience to the public. Such a cleanup programme would be undertaken only if the detriment to health and social life resulting from cleanup activities would be less than that resulting from further exposures. All reasonable means should, however, be used to minimize the costs and detriment to humans of such a cleanup. For such a cleanup to be carried out safely, efficiently and as quickly as possible under adverse conditions requires: Good preliminary and final planning; A cleanup team having a well defined management structure and well trained personnel; and Suitable cleanup methods and equipment and cleanup criteria. 35 refs, 8 figs, 5 tabs

  2. Technical papers presented at a DOE meeting on criteria for cleanup of transuranium elements in soil

    International Nuclear Information System (INIS)

    Transuranium element soil contamination cleanup experience gained from nuclear weapons accidents and cleanup at Eniwetok Atoll was reviewed. Presentations have been individually abstracted for inclusion in the data base

  3. Technical papers presented at a DOE meeting on criteria for cleanup of transuranium elements in soil

    Energy Technology Data Exchange (ETDEWEB)

    1984-09-01

    Transuranium element soil contamination cleanup experience gained from nuclear weapons accidents and cleanup at Eniwetok Atoll was reviewed. Presentations have been individually abstracted for inclusion in the data base. (ACR)

  4. Patient safety: lessons learned

    International Nuclear Information System (INIS)

    The traditional approach to patient safety in health care has ranged from reticence to outward denial of serious flaws. This undermines the otherwise remarkable advances in technology and information that have characterized the specialty of medical practice. In addition, lessons learned in industries outside health care, such as in aviation, provide opportunities for improvements that successfully reduce mishaps and errors while maintaining a standard of excellence. This is precisely the call in medicine prompted by the 1999 Institute of Medicine report ''To Err Is Human: Building a Safer Health System.'' However, to effect these changes, key components of a successful safety system must include: (1) communication, (2) a shift from a posture of reliance on human infallibility (hence ''shame and blame'') to checklists that recognize the contribution of the system and account for human limitations, and (3) a cultivation of non-punitive open and/or de-identified/anonymous reporting of safety concerns, including close calls, in addition to adverse events. (orig.)

  5. Patient safety: lessons learned

    Energy Technology Data Exchange (ETDEWEB)

    Bagian, James P. [National Center for Patient Safety, Department of Veterans Affairs, Ann Arbor, MI (United States)

    2006-04-15

    The traditional approach to patient safety in health care has ranged from reticence to outward denial of serious flaws. This undermines the otherwise remarkable advances in technology and information that have characterized the specialty of medical practice. In addition, lessons learned in industries outside health care, such as in aviation, provide opportunities for improvements that successfully reduce mishaps and errors while maintaining a standard of excellence. This is precisely the call in medicine prompted by the 1999 Institute of Medicine report ''To Err Is Human: Building a Safer Health System.'' However, to effect these changes, key components of a successful safety system must include: (1) communication, (2) a shift from a posture of reliance on human infallibility (hence ''shame and blame'') to checklists that recognize the contribution of the system and account for human limitations, and (3) a cultivation of non-punitive open and/or de-identified/anonymous reporting of safety concerns, including close calls, in addition to adverse events. (orig.)

  6. ITER task T299 (1996) : fuel cleanup system demonstration tests

    International Nuclear Information System (INIS)

    The objective of this task is to demonstrate processes for efficient cleanup and detritiation of the plasma exhaust. In this subtask, the objectives were to provide further design data on the HITEX process, and to build and demonstrate 2-stage high-detritiation HITEX performance. (author). 9 refs., 1 tab., 11 figs

  7. Enewetak fact book (a resume of pre-cleanup information)

    International Nuclear Information System (INIS)

    The book contains a group of short treatises on the precleanup condition of the islands in Enewetak Atoll. Their purpose was to provide brief guidance to the radiological history and radiological condition of the islands for use in cleanup of the atoll

  8. Cleanup Verification Package for the 118-F-6 Burial Ground

    International Nuclear Information System (INIS)

    This cleanup verification package documents completion of remedial action for the 118-F-6 Burial Ground located in the 100-FR-2 Operable Unit of the 100-F Area on the Hanford Site. The trenches received waste from the 100-F Experimental Animal Farm, including animal manure, animal carcasses, laboratory waste, plastic, cardboard, metal, and concrete debris as well as a railroad tank car

  9. Enewetak fact book (a resume of pre-cleanup information)

    Energy Technology Data Exchange (ETDEWEB)

    Bliss, W. (comp.)

    1982-09-01

    The book contains a group of short treatises on the precleanup condition of the islands in Enewetak Atoll. Their purpose was to provide brief guidance to the radiological history and radiological condition of the islands for use in cleanup of the atoll. (ACR)

  10. Modeling of vapour generator for clean-up separator module

    International Nuclear Information System (INIS)

    233U clean-up process plays an important role in the thorium fuel cycle. This process is based on laser isotope separation (LIS) using atomic vapour, where the impure 233U (containing 232U) is evaporated in high vacuum environment. The vapour is interacted with laser beam to selectively ionize 232U, which is removed by electrostatic means

  11. Cleanup Verification Package for the 618-2 Burial Ground

    International Nuclear Information System (INIS)

    This cleanup verification package documents completion of remedial action for the 618-2 Burial Ground, also referred to as Solid Waste Burial Ground No. 2; Burial Ground No. 2; 318-2; and Dry Waste Burial Site No. 2. This waste site was used primarily for the disposal of contaminated equipment, materials and laboratory waste from the 300 Area Facilities

  12. Clean-ups at Aberdeen Proving Ground

    International Nuclear Information System (INIS)

    The Department of Defense has utilized radiative material in numerous applications over several decades. Aberdeen Proving Ground has been an integral player in the Army's Research, Development, and Testing of items incorporating radionuclides, as well as developing new and innovative applications. As new information becomes available and society progresses, we find that the best management practices used decades, or even sometimes years earlier are inadequate to meet the current demands. Aberdeen Proving Ground is committed to remediating historic disposal sites, and utilizing the best available technology in current operations to prevent future adverse impact. Two projects which are currently ongoing at Aberdeen Proving Ground illustrates these points. The first, the remediation of contaminated metal storage areas, depicts how available technology has provided a means for recycling material whereby preventing the continued stock piling, and allowing for the decommissioning of the areas. The second, the 26Th Street Disposal Site Removal Action, shows how historic methods of disposition were inadequate to meet today's needs

  13. 77 FR 9847 - Safety Zone; Kinnickinnic River Containment and Cleanup; Milwaukee, WI

    Science.gov (United States)

    2012-02-21

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; Kinnickinnic River Containment and Cleanup... presented by the containment and cleanup of petroleum product are immediate and do not allow time for a... Michigan, has determined that the containment and cleanup poses a serious risk of injury to persons...

  14. EBR-II Cover Gas Cleanup System (CGCS) upgrade graphical interface design

    International Nuclear Information System (INIS)

    Technology advances in the past few years have prompted an effort at Argonne National Laboratory to replace existing equipment with high performance digital computers and color graphic displays. Improved operation of process systems can be achieved by utilizing state-of-the-art computer technology in the areas of process control and process monitoring. The Cover Gas Cleanup System (CGCS) at EBR-II is the first system to be upgraded with high performance digital equipment. The upgrade consisted of a main control computer, a distributed control computer, a front end input/output computer, a main graphics interface terminal, and a remote graphics interface terminal. This paper describes the main control computer and the operator interface control software

  15. Stream-bank cleanup assessment team (SCAT) survey techniques on the Kolva River Basin oil recovery and mitigation project

    International Nuclear Information System (INIS)

    The use of shoreline cleanup assessment technology (SCAT) during the oil spill cleanup efforts at the Kolva River Basin in Northern Russia, was discussed. A major crude oil spill occurred at six points along a pipeline which threatened the riverside communities. Hartec Management Consultants Inc. was chosen to contain and recover the huge quantities of spilled oil. Normally, SCAT is used for coastal environments, but on the Kolva River project, coastal SCAT methods were modified to document the oiling conditions in the riverine environment. The modified SCAT proved to be very effective in documenting the pre- and post-treatment oil conditions in the river. The SCAT maps, database, and graphs helped in planning activities and in demonstrating project achievements. 1 tab., 6 figs

  16. Methodology and data used for estimating the complex-wide impacts of alternative environmental restoration clean-up goals

    International Nuclear Information System (INIS)

    This paper describes the methodologies and data used for estimating the complex-wide impacts of alternative strategies for conducting remediation of all DOE sites and facilities, but does not address issues relating to Waste Management capabilities. Clean-up strategies and their corresponding goals for contaminated media may be driven by concentration-based regulatory standards, land-use standards (e.g., residential, industrial, wild life reserve, or totally restricted), risk-based standards, or other standards determined through stakeholder input. Strategies implemented to achieve these goals usually require the deployment of (a) clean-up technologies to destroy, remove, or contain the contaminants of concern; (b) institutional controls to prevent potential receptors from coming into contact with the contaminants; or (c) a combination of the above

  17. Cleanup procedures at the Nevada Test Site and at other radioactively contaminated sites including representative costs of cleanup and treatment of contaminated areas

    International Nuclear Information System (INIS)

    This review summarizes available information on cleanup procedures at the Nevada Test Site and at other radioactively contaminated sites. Radionuclide distribution and inventory, size of the contaminated areas, equipment, and cleanup procedures and results are included. Information about the cost of cleanup and treatment for contaminated land is presented. Selected measures that could be useful in estimating the costs of cleaning up radioactively contaminated areas are described. 76 refs., 16 tabs

  18. HANFORD TANK CLEANUP UPDATE MAY 2009

    International Nuclear Information System (INIS)

    Retrieval of waste from single-shell tank C-110 resumed in January making it the first waste retrieval operation for WRPS since taking over Hanford's Tank Operations Contract last October. Now, with approximately 90 percent of the waste removed, WRPS believes that modified sluicing has reached the limits of the technology to remove any further waste and is preparing documentation for use in decision making about any future retrieval actions. Tank C-110 is located in C Fann near the center of the Hanford Site. It is a 530,000 gallon tank, built in 1946, and held approximately 126,000 gallons of sludge and other radioactive and chemical waste materials when retrieval resumed. Modified sluicing technology uses liquid waste from a nearby double-shell tank to break up, dissolve and mobilize the solid material so it can be pumped. Because of the variety of waste fon11S, sluicing is often not able to remove all of the waste. The remaining waste will next be sampled for analysis, and results will be used to guide decisions regarding future actions. Work is moving rapidly in preparation to retrieve waste from a second single-shell tank this summer and transfer it to safer double-shell tank storage. Construction activities necessary to retrieve waste from Tank C-104, a 530,000 gallon tank built in 1943, are approximately 60 percent complete as WRPS maintains its focus on reducing the risk posed by Hanford's aging single-shell waste tanks. C-104 is one of Hanford's oldest radioactive and chemical waste storage tanks, containing approximately 263,000 gallons of wet sludge with a top layer that is dry and powdery. This will be the largest sludge volume retrieval ever attempted using modified sluicing technology. Modified sluicing uses high pressure water or liquid radioactive waste sprayed from nozzles above the waste. The liquid dissolves and/or mobilizes the waste so it can be pumped. In addition to other challenges, tank C-104 contains a significant amount of plutonium and

  19. Music lessons enhance IQ.

    Science.gov (United States)

    Schellenberg, E Glenn

    2004-08-01

    The idea that music makes you smarter has received considerable attention from scholars and the media. The present report is the first to test this hypothesis directly with random assignment of a large sample of children (N = 144) to two different types of music lessons (keyboard or voice) or to control groups that received drama lessons or no lessons. IQ was measured before and after the lessons. Compared with children in the control groups, children in the music groups exhibited greater increases in full-scale IQ. The effect was relatively small, but it generalized across IQ subtests, index scores, and a standardized measure of academic achievement. Unexpectedly, children in the drama group exhibited substantial pre- to post-test improvements in adaptive social behavior that were not evident in the music groups. PMID:15270994

  20. Reform on Test of “Manufacturing Technology Base” Lesson%《机械制造基础》课程考核方式改革研究

    Institute of Scientific and Technical Information of China (English)

    王涛; 唐杰; 王浩

    2014-01-01

    在高等教育中,课程考核方式的改革一直是研究的热点问题。作者对《机械制造基础》课程的考核方式改革进行了研究,将以前较单一的以期末考试和平时出勤为主的考核方式改革为课上刻下的多目标考核,对学生多方面能力的提高起到了积极作用。%In college education, it is always a hot research point how to test the students. In the paper, the reform on test of “Manufacturing Technology Base” Lesson is proposed, which can change a simple test only including term-end testing and attendance at ordinary times into a multi-objective test including class test and test after class. These reforms are helpful to improve the students’ ability in many aspects.

  1. The transatlantic telegraph’s introduction is a lesson from history on how information technology can improve firms’ ability to forecast demand

    OpenAIRE

    Steinwender, Claudia

    2014-01-01

    When new technology leads to a dramatic change in the availability of information, how do firms and markets respond? In a unique historical ‘experiment’, Claudia Steinwender evaluates the trade impact of the submarine transatlantic telegraph cable that connected Europe and North America in the mid-nineteenth century.

  2. NRC plan for cleanup operations at Three Mile Island Unit 2

    International Nuclear Information System (INIS)

    This NRC Plan, which defines NRC's functional role in cleanup operations at Three Mile Island Unit 2 and outlines NRC's regulatory responsibilities in fulfilling this role, is the first revision to the initial plan issued in July 1980 (NUREG-0698). Since 1980, a number of policy developments have occurred which will have an impact on the course of cleanup operations. This revision reflects these developments in the area of NRC's review and approval process with regard to cleanup operations as well as NRC's interface with the Department of Energy's involvement in the cleanup and waste disposal. This revision is also intended to update the cleanup schedule by presenting the cleanup progress that has taken place and NRC's role in ongoing and future cleanup activities

  3. Technology Catalogue

    International Nuclear Information System (INIS)

    The Department of Energy's Office of Environmental Restoration and Waste Management (EM) is responsible for remediating its contaminated sites and managing its waste inventory in a safe and efficient manner. EM's Office of Technology Development (OTD) supports applied research and demonstration efforts to develop and transfer innovative, cost-effective technologies to its site clean-up and waste management programs within EM's Office of Environmental Restoration and Office of Waste Management. The purpose of the Technology Catalogue is to provide performance data on OTD-developed technologies to scientists and engineers assessing and recommending technical solutions within the Department's clean-up and waste management programs, as well as to industry, other federal and state agencies, and the academic community. OTD's applied research and demonstration activities are conducted in programs referred to as Integrated Demonstrations (IDs) and Integrated Programs (IPs). The IDs test and evaluate.systems, consisting of coupled technologies, at specific sites to address generic problems, such as the sensing, treatment, and disposal of buried waste containers. The IPs support applied research activities in specific applications areas, such as in situ remediation, efficient separations processes, and site characterization. The Technology Catalogue is a means for communicating the status. of the development of these innovative technologies. The FY93 Technology Catalogue features technologies successfully demonstrated in the field through IDs and sufficiently mature to be used in the near-term. Technologies from the following IDs are featured in the FY93 Technology Catalogue: Buried Waste ID (Idaho National Engineering Laboratory, Idaho); Mixed Waste Landfill ID (Sandia National Laboratories, New Mexico); Underground Storage Tank ID (Hanford, Washington); Volatile organic compound (VOC) Arid ID (Richland, Washington); and VOC Non-Arid ID (Savannah River Site, South Carolina)

  4. Cleanup Verification Package for the 600-259 Waste Site

    Energy Technology Data Exchange (ETDEWEB)

    J. M. Capron

    2006-02-09

    This cleanup verification package documents completion of remedial action for the 600-259 waste site. The site was the former site of the Special Waste Form Lysimeter, consisting of commercial reactor isotope waste forms in contact with soils within engineered caissons, and was used by Pacific Northwest National Laboratory to collect data regarding leaching behavior for target analytes. A Grout Waste Test Facility also operated at the site, designed to test leaching rates of grout-solidified low-level radioactive waste.

  5. Cleanup Verification Package for the 618-8 Burial Ground

    International Nuclear Information System (INIS)

    This cleanup verification package documents completion of remedial action for the 618-8 Burial Ground, also referred to as the Solid Waste Burial Ground No. 8, 318-8, and the Early Solid Waste Burial Ground. During its period of operation, the 618-8 site is speculated to have been used to bury uranium-contaminated waste derived from fuel manufacturing, and construction debris from the remodeling of the 313 Building

  6. Cleanup Verification Package for the 618-3 Burial Ground

    Energy Technology Data Exchange (ETDEWEB)

    M. J. Appel

    2006-09-12

    This cleanup verification package documents completion of remedial action for the 618-3 Solid Waste Burial Ground, also referred to as Burial Ground Number 3 and the Dry Waste Burial Ground Number 3. During its period of operation, the 618-3 site was used to dispose of uranium-contaminated construction debris from the 311 Building and construction/demolition debris from remodeling of the 313, 303-J and 303-K Buildings.

  7. Cleanup Verification Package for the 618-3 Burial Ground

    International Nuclear Information System (INIS)

    This cleanup verification package documents completion of remedial action for the 618-3 Solid Waste Burial Ground, also referred to as Burial Ground Number 3 and the Dry Waste Burial Ground Number 3. During its period of operation, the 618-3 site was used to dispose of uranium-contaminated construction debris from the 311 Building and construction/demolition debris from remodeling of the 313, 303-J and 303-K Buildings

  8. Characterization of plutonium contamination at Maralinga: Dosimetry and cleanup criteria

    International Nuclear Information System (INIS)

    An area of South Australia remained contaminated following British atomic tests at Maralinga during 1955-1963. Of importance is the long lived 239Pu of which some 24 kg was explosively dispersed in several 'minor trials'. The extent, quantities and physical characteristics of the plutonium have been assessed and estimates of dose, dominated by the inhalation pathway in the critical group of Aborigines living a semi-traditional lifestyle, have been made for potential occupants. Dosimetry, together with social and economic factors, underpins the setting of cleanup criteria in terms of activity concentrations averaged over large areas and permissible concentrations of contaminated particles. The possibility of intentional behaviour such as fragment scavenging has also influenced limits on particulate contamination. Rehabilitation of the most contaminated areas is underway, with scraping of surface soil and burial on site completed. Vehicular-mounted radiation detector systems for wide area and particle monitoring have been developed, and procedures established for determining cleanup boundaries and for the verification monitoring to ensure that the cleanup process has met the specified criteria. Data are being obtained for a final dose and health risk assessment of the cleaned up site. (author)

  9. A risk-based cleanup criterion for PCE in soil

    International Nuclear Information System (INIS)

    The most important attribute of a chemical contaminant at a hazardous-wastes site for decision makers to consider with regard to its cleanup is the potential risk associated with human exposure. For this reason we have developed a strategy for establishing a risk-based cleanup criterion for chemicals in soil. We describe this strategy by presenting a cleanup criterion for tetrachloroethylene (PCE) in soil associated with a representative California landscape. We being by discussing the environmental fate and transport model, developed at the Lawrence Livermore National Laboratory (LLNL), that we used to predict the equilibrium concentration of PCE in five environmental media from a steady-state source in soil. Next, we explain the concept and application of pathway-exposure factors (PEFs), the hazard index, and cancer-potency factors (CPFs) for translating the predicted concentrations of PCE into estimated potential hazard or risk for hypothetically exposed individuals. Finally, the relationship between concentration and an allowable level of risk is defined and the societal and financial implications are discussed. 22 refs., 6 tabs

  10. Terminating Safeguards on Excess Special Nuclear Material: Defense TRU Waste Clean-up and Nonproliferation - 12426

    International Nuclear Information System (INIS)

    The Department of Energy (DOE) and the National Nuclear Security Administration (NNSA) manages defense nuclear material that has been determined to be excess to programmatic needs and declared waste. When these wastes contain plutonium, they almost always meet the definition of defense transuranic (TRU) waste and are thus eligible for disposal at the Waste Isolation Pilot Plant (WIPP). The DOE operates the WIPP in a manner that physical protections for attractiveness level D or higher special nuclear material (SNM) are not the normal operating condition. Therefore, there is currently a requirement to terminate safeguards before disposal of these wastes at the WIPP. Presented are the processes used to terminate safeguards, lessons learned during the termination process, and how these approaches might be useful for future defense TRU waste needing safeguards termination prior to shipment and disposal at the WIPP. Also described is a new criticality control container, which will increase the amount of fissile material that can be loaded per container, and how it will save significant taxpayer dollars. Retrieval, compliant packaging and shipment of retrievably stored legacy TRU waste has dominated disposal operations at WIPP since it began operations 12 years ago. But because most of this legacy waste has successfully been emplaced in WIPP, the TRU waste clean-up focus is turning to newly-generated TRU materials. A major component will be transuranic SNM, currently managed in safeguards-protected vaults around the weapons complex. As DOE and NNSA continue to consolidate and shrink the weapons complex footprint, it is expected that significant quantities of transuranic SNM will be declared surplus to the nation's needs. Safeguards termination of SNM varies due to the wide range of attractiveness level of the potential material that may be directly discarded as waste. To enhance the efficiency of shipping waste with high TRU fissile content to WIPP, DOE designed an over

  11. Disposal of waste from the cleanup of large areas contaminated as a result of a nuclear accident

    International Nuclear Information System (INIS)

    The report provides an overview of the methodology and technology available to load, transport and dispose of large volumes of contaminated material arising from the cleanup of areas after a nuclear accident and includes data on the planning, implementation, management and costing of such activities. To demonstrate the use of this information, three cleanup and disposal scenarios are examined, ranging from disposal in many small mounds or trenches within the contaminated area to disposal in a large facility away from the plant. As in the two companion reports, it is assumed that the population has been evacuated from the affected area. The report reviews the generic types of low level radioactive waste which are likely to arise from such a cleanup. The report does not deal with the recovery and disposal of intermediate and high level radioactive material on or near the plant site. This material will have to be recovered, packaged, transported and stored on-site or disposed of at an appropriate facility. These operations should be done by specialist teams using shielded or remotely operated equipment. Also not included are methods of in situ stabilization of contamination, for example ploughing to bury the top contaminated layer at a suitable depth. These techniques, which are likely to be widely used in part of the evacuated are, are discussed in IAEA Technical Reports Series No. 300, Vienna, 1989. 50 refs, 18 figs, 4 tabs

  12. OIL SPILL BIOREMEDIATION: EXPERIENCES, LESSONS AND RESULTS FROM THE EXXON VALDEZ OIL SPILL IN ALASKA

    Science.gov (United States)

    The use of bioremediation as a supplemental cleanup technology in the Exxon Valdez oil spill, in Prince William Sound, Alaska, has proven to be a good example of the problems and successes associated with the practical application of this technology. ield studies conducted by sci...

  13. Creating A Guided- discovery Lesson

    Institute of Scientific and Technical Information of China (English)

    田枫

    2005-01-01

    In a guided - discovery lesson, students sequentially uncover layers of mathematical information one step at a time and learn new mathematics. We have identified eight critical steps necessary in developing a successful guided- discovery lesson.

  14. 2020 Vision for Tank Waste Cleanup (One System Integration) - 12506

    International Nuclear Information System (INIS)

    The mission of the Department of Energy's Office of River Protection (ORP) is to safely retrieve and treat the 56 million gallons of Hanford's tank waste and close the Tank Farms to protect the Columbia River. The millions of gallons of waste are a by-product of decades of plutonium production. After irradiated fuel rods were taken from the nuclear reactors to the processing facilities at Hanford they were exposed to a series of chemicals designed to dissolve away the rod, which enabled workers to retrieve the plutonium. Once those chemicals were exposed to the fuel rods they became radioactive and extremely hot. They also couldn't be used in this process more than once. Because the chemicals are caustic and extremely hazardous to humans and the environment, underground storage tanks were built to hold these chemicals until a more permanent solution could be found. The Cleanup of Hanford's 56 million gallons of radioactive and chemical waste stored in 177 large underground tanks represents the Department's largest and most complex environmental remediation project. Sixty percent by volume of the nation's high-level radioactive waste is stored in the underground tanks grouped into 18 'tank farms' on Hanford's central plateau. Hanford's mission to safely remove, treat and dispose of this waste includes the construction of a first-of-its-kind Waste Treatment Plant (WTP), ongoing retrieval of waste from single-shell tanks, and building or upgrading the waste feed delivery infrastructure that will deliver the waste to and support operations of the WTP beginning in 2019. Our discussion of the 2020 Vision for Hanford tank waste cleanup will address the significant progress made to date and ongoing activities to manage the operations of the tank farms and WTP as a single system capable of retrieving, delivering, treating and disposing Hanford's tank waste. The initiation of hot operations and subsequent full operations of the WTP are not only dependent upon the successful

  15. Cleanup Verification Package for the 300-8 Waste Site

    International Nuclear Information System (INIS)

    This cleanup verification package documents completion of remedial action for the 300-8 waste site. This waste site was formerly used to stage scrap metal from the 300 Area in support of a program to recycle aluminum. This cleanup verification package documents completion of remedial action for the 300-8 waste site. The 300-8 site is located within the 300-FF-2 Operable Unit in the 300 Area of the Hanford Site in southeastern Washington State. The site was formerly used to stage scrap metal from the 300 Area in support of a program to recycle aluminum. Staging and loading activities at the site scattered scrap metal over an approximately 34,000-m2 (366,000-ft2) area, with residual metallic debris generally present within the top 0.4 m (1.5 ft) of soil. Site excavation and waste disposal are complete, and post-excavation geophysical surveys confirm the removal of residual metallic debris. The exposed surfaces have been sampled and analyzed to verify attainment of the remedial action goals. Results of the sampling, laboratory analyses, and data evaluations for the 300-8 site indicate that all remedial action objectives and goals for direct exposure, protection of groundwater, and protection of the Columbia River have been met for industrial land use (Table ES-1). Because residual soil concentrations indicated that cleanup levels for more stringent land uses may have been achieved for the 300-8 site, a supplemental evaluation was performed against unrestricted land-use cleanup objectives established in the Explanation of Significant Differences for the 300-FF-2 Operable Unit Record of Decision (EPA 2004). Results of the evaluation (Table ES-2) demonstrate that residual contaminant concentrations do not preclude any future uses (as bounded by the rural-residential scenario) and allow for unrestricted use of shallow zone soils (i.e., surface to 4.6 m (15 ft) deep). This site does not have a deep zone; therefore, no deep zone institutional controls are required. The site

  16. Richland Operations Office technology summary

    Energy Technology Data Exchange (ETDEWEB)

    1994-05-01

    This document has been prepared by the Department of Energy`s Environmental Management Office of Technology Development to highlight its research, development, demonstration, testing, and evaluation activities funded through the Richland Operations Office. Technologies and processes described have the potential to enhance cleanup and waste management efforts.

  17. Richland Operations Office technology summary

    International Nuclear Information System (INIS)

    This document has been prepared by the Department of Energy's Environmental Management Office of Technology Development to highlight its research, development, demonstration, testing, and evaluation activities funded through the Richland Operations Office. Technologies and processes described have the potential to enhance cleanup and waste management efforts

  18. A Neural Network for Generating Adaptive Lessons

    OpenAIRE

    Hassina Seridi-Bouchelaghem; Toufik Sari; Mokhtar Sellami

    2005-01-01

    Traditional sequencing technology developed in the field of intelligent tutoring systems have not find an immediate place in large-scale Web-based education. This study investigates the use of computational intelligence for adaptive lesson generation in a distance learning environment over the Web. An approach for adaptive pedagogical hypermedia document generation is proposed and implemented in a prototype called KnowledgeClass. This approach is based on a specialized art...

  19. Lessons learned from the Three Mile Island Unit 2 Advisory Panel

    International Nuclear Information System (INIS)

    In response to public concern about the cleanup of the Three Mile Island, Unit 2 (TMI-2) facility after an accident on March 28, 1979 involving a loss of reactor coolant and subsequent damage to the reactor fuel, twelve citizens were asked to serve on an independent Advisory Panel to consult with the Nuclear Regulatory Commission (NRC) on the decontamination and cleanup of the facility. The panel met 78 times over a period of thirteen years, holding public meetings in the vicinity of TMI-2 and meeting regularly with NRC Commissioners in Washington, DC. This report describes the results of a project designed to identify and describe the lessons learned from the Advisory Panel and place those lessons in the context of what we generally know about citizen advisory groups. A summary of the empirical literature on citizen advisory panels is followed by a brief history of the TMI-2 Advisory Panel. The body of the report contains the analysis of the lessons learned, preliminary conclusions about the effectiveness of the Panel, and implications for the NRC in the use of advisory panels. Data for the report include meeting transcripts and interviews with past and present Panel participants

  20. Lessons learned from the Three Mile Island Unit 2 Advisory Panel

    Energy Technology Data Exchange (ETDEWEB)

    Lach, D.; Bolton, P.; Durbin, N. [Battelle Seattle Research Center, WA (United States); Harty, R. [Pacific Northwest Lab., Richland, WA (United States)

    1994-08-01

    In response to public concern about the cleanup of the Three Mile Island, Unit 2 (TMI-2) facility after an accident on March 28, 1979 involving a loss of reactor coolant and subsequent damage to the reactor fuel, twelve citizens were asked to serve on an independent Advisory Panel to consult with the Nuclear Regulatory Commission (NRC) on the decontamination and cleanup of the facility. The panel met 78 times over a period of thirteen years, holding public meetings in the vicinity of TMI-2 and meeting regularly with NRC Commissioners in Washington, DC. This report describes the results of a project designed to identify and describe the lessons learned from the Advisory Panel and place those lessons in the context of what we generally know about citizen advisory groups. A summary of the empirical literature on citizen advisory panels is followed by a brief history of the TMI-2 Advisory Panel. The body of the report contains the analysis of the lessons learned, preliminary conclusions about the effectiveness of the Panel, and implications for the NRC in the use of advisory panels. Data for the report include meeting transcripts and interviews with past and present Panel participants.

  1. Lessons learned for a more efficient knowledge and technology transfer to South American countries in the fields of solid waste and contaminated sites management.

    Science.gov (United States)

    Bezama, Alberto; Szarka, Nóra; Navia, Rodrigo; Konrad, Odorico; Lorber, Karl E

    2007-04-01

    The present paper describes the development, performance and conclusions derived from three know-how and technology transfer projects to South American countries. The first project comprised a collaborative study by European and South American universities to find sustainable solutions for Chilean and Ecuadorian leather tanneries which had underachieving process performances. The second project consisted of investigations carried out in a Brazilian municipality to enhance its municipal solid waste management system. The final collaborative programme dealt with the initial identification, evaluation and registration of suspected contaminated sites in an industrial region of Chile. The detailed objectives, methods and procedures applied as well as the results and conclusions obtained in each of the three mentioned projects are presented, giving special attention to the organizational aspects and to the practical approach of each programme, concluding with their main advantages and disadvantages for identifying a set of qualitative and quantitative suggestions, and to establish transferable methods for future applications. PMID:17439050

  2. Verification for radiological decommissioning - Lessons learned

    International Nuclear Information System (INIS)

    During the past 10 years, the Environmental Survey and Site Assessment Program (ESSAP) at Oak ridge Associated Universities has performed radiological surveys to confirm the adequacy of cleanup and/or decommissioning actions at sites and facilities where radioactive materials have been handled. These surveys are part of the independent oversight programs of the US Department of Energy (DOE) and the US Nuclear Regulatory Commission (NRC). Results of verification activities have been discouraging. Numerous independent surveys have identified residual contamination requiring further remediation; in some cases, initial decontamination and postremedial action monitoring were totally inadequate. While participating in decommission projects, ESSAP learned valuable lessons and has given this information to regulating agencies and decommissioning sites. The goal of this presentation is to highlight the difficulties encountered by ESSAP in its involvement with NRC and DOE decommissioning projects. Decommissioning projects require teamwork, and success depends to a large degree on the communication, cooperation, and coordination of efforts among the individual organizations involved. This information could be used by organizations involved in future decontamination projects to avoid some of the pitfalls associated with this process

  3. Lessons from World War I

    Directory of Open Access Journals (Sweden)

    John Scales Avery

    2014-05-01

    Full Text Available The history of World War I is reviewed, starting with a discussion of the development of nationalist movements in Europe. It is pointed out that the global disaster started with a seemingly small operation by Austria, which escalated uncontrollably into an all-destroying conflagration. A striking feature of the war was that none of the people who started it had any idea of what it would be like. Technology had changed the character of war, but old patterns of thought remained in place. We also examine the roots of the war in industrial and colonial competition, and in an arms race. Finally, parallels with current events, and the important lessons for today’s world are discussed.

  4. HANDBOOK FOR CONDUCTING ORAL HISTORY INTERVIEWS RELATED TO TRIBAL AND INDIAN PARTICIPATION IN THE CONSTRUCTION, OPERATION AND CLEANUP OF THE NUCLEAR WEAPONS COMPLEX

    Energy Technology Data Exchange (ETDEWEB)

    Cristann Gibson; Mervyn L. Tano; Albert Wing

    1999-08-31

    There were three major projects undertaken at the outset of the DOE/EM 22 Cooperative Agreement back in September 1995. There was a project relating to Tribal oral histories. Another project of the Cooperative Agreement related to technology and Tribal values and needs. This project by analogy could apply to issues of technology, environmental cleanup and other indigenous peoples internationally. How can Indian Tribes participate in defining the need for technology development rather than merely learning to adapt themselves and their situations and values to technology developed by others with differing needs, values and economic resources? And the third project was the placement of a Tribal intern in EM-22.

  5. Technology catalogue. Second edition

    International Nuclear Information System (INIS)

    The Department of Energy's (DOE's) Office of Environmental Management (EM) is responsible for remediating DOE contaminated sites and managing the DOE waste inventory in a safe and efficient manner. EM's Office of Technology Development (OTD) supports applied research and demonstration efforts to develop and transfer innovative, cost-effective technologies to its site clean-up and waste-management programs within EM. The purpose of the Technology Catalogue is to: (a) provide performance data on OTD-developed technologies to scientists and engineers responsible for preparing Remedial Investigation/Feasibility Studies (RI/FSs) and other compliance documents for the DOE's clean-up and waste-management programs; and (b) identify partnering and commercialization opportunities with industry, other federal and state agencies, and the academic community

  6. Technology catalogue. Second edition

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-04-01

    The Department of Energy`s (DOE`s) Office of Environmental Management (EM) is responsible for remediating DOE contaminated sites and managing the DOE waste inventory in a safe and efficient manner. EM`s Office of Technology Development (OTD) supports applied research and demonstration efforts to develop and transfer innovative, cost-effective technologies to its site clean-up and waste-management programs within EM. The purpose of the Technology Catalogue is to: (a) provide performance data on OTD-developed technologies to scientists and engineers responsible for preparing Remedial Investigation/Feasibility Studies (RI/FSs) and other compliance documents for the DOE`s clean-up and waste-management programs; and (b) identify partnering and commercialization opportunities with industry, other federal and state agencies, and the academic community.

  7. The history of a lesson

    DEFF Research Database (Denmark)

    Rasmussen, Mikkel Vedby

    2003-01-01

    and emphasises the need to study the history of lessons rather than the lessons of history. This approach shows that Munich is the end point of a constitutive history that begins in the failure of the Versailles treaty to create a durable European order following the First World War. The Munich lesson...... is thus one element of the lesson of Versailles, which is a praxeology that defines how the West is to make peace, and against whom peace must be defended. The lesson of Versailles has been, at least in part, constitutive of the outbreak of the Cold War, and it continues to define the Western...

  8. Teaching East Asia: China, Japan, Korea. Lesson Plans for Middle School Teachers. Volume I.

    Science.gov (United States)

    Aiken, Geoff; Benton, Susan; Duvall, James; Eltzroth, Diane; Hooyberg, Astrid; Keim, Marilee; Norris, Elizabeth; Smith, Peggy; Vogel, Kathy; Williams, Steven

    This volume contains 40 lesson plans that were written for middle school teachers to help students learn about East Asia. The lessons are organized across five themes: (1) "People, Places & Environment"; (2) "Technology, Production, Distribution & Consumption"; (3) "Cultures, Continuity, Change"; (4) Institutions, Power & Government"; and (5)…

  9. Teaching East Asia: China, Japan, Korea. Lesson Plans for Middle School Teachers. Volume II.

    Science.gov (United States)

    Beville, Francie; Boone, Mark; Chapman, Kelly; Crump, Claudia; Curtis, Lonnie; Erickson, Stacy; Kaiser-Polge, Tami; Klus, John A.; Luebbehusen, Mary Lou; Rea, Patrick S.; Ward, Mary E.

    This volume contains 23 lesson plans that were written for middle school teachers to help students learn about East Asia. The lessons are organized across six themes: (1) "People, Places & Environment"; (2) "Technology, Production, Distribution & Consumption"; (3) "Cultures, Continuity, and Change"; (4) "Aesthetics, Celebrations and Values"; (5)…

  10. Teaching Students to Attain Annual Transition Goals Using the Take Action Goal Attainment Lessons

    Science.gov (United States)

    Martin, Jodie D.; Martin, James E.; Osmani, Kimberly J.

    2014-01-01

    This study used the Take Action goal attainment lesson package and assistive technology to teach nine high school students with mild to moderate disabilities to attain annual transition goals. The Take Action lessons increased students' goal attainment knowledge, and this knowledge generalized to improved Plan Organizers, and slightly…

  11. The value of superfund cleanups : evidence from U.S. Environmental Protection Agency decisions

    OpenAIRE

    Gupta, Shreekant; Van Houtven, George; Cropper, Maureen L.; DEC

    1994-01-01

    Under the Superfund law, the U.S. Environmental Protection Agency (EPA) is responsible for inspecting hazardous waste sites and for putting those with the most serious contamination problems on a national priorities list. The EPA then oversees the cleanup of these sites, suing potentially responsible parties for the costs of cleanup when possible, and funding the cleanup of"orphaned"sites out of the Superfund, money raised taxing chemical and petroleum products. The Superfund program is contr...

  12. EBR-II cover-gas cleanup system

    International Nuclear Information System (INIS)

    Operation of EBR-II with breached elements results in the continuous release of fission gases to the argon cover gas. To control activity in the reactor, a cover-gas cleanup system (CGCS) was installed to remove xenon and krypton from the cover gas by cryogenic distillation. Although only one breached fuel element will, by intention, be in-core during the early stages of the run-beyond-cladding-breach (RBCB) program now under way, the CGCS is designed to handle the activity released by up to 12 mixed-oxide elements

  13. Cleanup Verification Package for the 118-F-1 Burial Ground

    International Nuclear Information System (INIS)

    This cleanup verification package documents completion of remedial action for the 118-F-1 Burial Ground on the Hanford Site. This burial ground is a combination of two locations formerly called Minor Construction Burial Ground No. 2 and Solid Waste Burial Ground No. 2. This waste site received radioactive equipment and other miscellaneous waste from 105-F Reactor operations, including dummy elements and irradiated process tubing; gun barrel tips, steel sleeves, and metal chips removed from the reactor; filter boxes containing reactor graphite chips; and miscellaneous construction solid waste

  14. Fernald restoration: ecologists and engineers integrate restoration and cleanup

    Energy Technology Data Exchange (ETDEWEB)

    Woods, Eric; Homer, John

    2002-07-15

    As cleanup workers excavate pits and tear down buildings at the Fernald site in southwest Ohio, site ecologists are working side-by-side to create thriving wetlands and develop the early stages of forest, prairie, and savanna ecosystems to restore natural resources that were impacted by years of site operations. In 1998, the U.S. Department of Energy-Fernald Office (DOE-FN) and its cleanup contractor, Fluor Fernald, Inc., initiated several ecological restoration projects in perimeter areas of the site (e.g., areas not used for or impacted by uranium processing or waste management). The projects are part of Fernald's final land use plan to restore natural resources over 904 acres of the 1,050-acre site. Pete Yerace, the DOE-FN Natural Resource Trustee representative is working with the Fernald Natural Resource Trustees in an oversight role to resolve the state of Ohio's 1986 claim against DOE for injuries to natural resources. Fluor Fernald, Inc., and DOE-FN developed the ''Natural Resource Restoration Plan'', which outlines 15 major restoration projects for the site and will restore injured natural resources at the site. In general, Fernald's plan includes grading to maximize the formation of wetlands or expanded floodplain, amending soil where topsoil has been removed during excavation, and establishing native vegetation throughout the site. Today, with cleanup over 35 percent complete and site closure targeted for 2006, Fernald is entering a new phase of restoration that involves heavily remediated areas. By working closely with engineers and cleanup crews, site ecologists can take advantage of remediation fieldwork (e.g., convert an excavated depression into a wetland) and avoid unnecessary costs and duplication. This collaboration has also created opportunities for relatively simple and inexpensive restoration of areas that were discovered during ongoing remediation. To ensure the survival of the plant material in heavily

  15. Risky business: Assessing cleanup plans for waste sites

    International Nuclear Information System (INIS)

    ORNL was chosen to perform human health and ecological risk assessments for DOE because of its risk assessment expertise. The U.S. Department of Energy's many production and research sites contain radioactive and hazardous wastes. These waste sites pose potential risks to the health and safety of remediation and waste management workers and the public. The risks, however, vary from site to site. Some sites undoubtedly present larger risks than others and should be cleaned up first. However, before the cleanup begins, DOE is required by law to prepare an environmental impact statement on any actions that may significantly affect the environment-even actions that would clean it up

  16. The TMI-2 clean-up project collection and databases

    International Nuclear Information System (INIS)

    A publicly accessible collection containing several thousand of the videotapes, photographs, slides and technical reports generated during the clean-up of the TMI-2 reactor has been established by the Pennsylvania State University Libraries. The collection is intended to serve as a technical resource for the nuclear industry as well as the interested public. Two Internet-searchable databases describing the videotapes and technical reports have been created. The development and use of these materials and databases are described in this paper. (orig.)

  17. Cleanup Verification Package for the 116-K-2 Effluent Trench

    Energy Technology Data Exchange (ETDEWEB)

    J. M. Capron

    2006-04-04

    This cleanup verification package documents completion of remedial action for the 116-K-2 effluent trench, also referred to as the 116-K-2 mile-long trench and the 116-K-2 site. During its period of operation, the 116-K-2 site was used to dispose of cooling water effluent from the 105-KE and 105-KW Reactors by percolation into the soil. This site also received mixed liquid wastes from the 105-KW and 105-KE fuel storage basins, reactor floor drains, and miscellaneous decontamination activities.

  18. Lessons learned at West Valley during facility decontamination for re-use (1982--1988)

    International Nuclear Information System (INIS)

    The primary mission of the West Valley Demonstration Project (WVDP) is to solidify a large volume of high-level liquid waste (2.3 million liters -- 600,000 gallons) produced during reprocessing plant operations and stored in underground tanks. This is to be accomplished through the maximum use of existing facilities. This required a significant effort to remove existing equipment and to decontaminate areas for installation of liquid and cement processing systems in a safe environment while maintaining exposure to workers as low as reasonably achievable. The reprocessing plant occupied a building of about 33,000 m2 (350,000 ft2). When the WVDP was initiated, approximately 6 percent of the plant area was in a non-contaminated condition where personnel could function without protective clothing or radiological controls. From 1982 to 1988, an additional 64 percent of the plant was cleaned up and much of this converted to low- and high-level waste processing areas. The high-level liquid and resulting low-level liquids are now being treated in these areas using an Integrated Radwaste Treatment System (IRTS). The Project has now focused attention on installation, qualification and operation of a vitrification system which will convert the remaining high-level waste into borosilicate glass logs. The stabilized waste will be sent to a Federal Repository for long-term storage. From 1982 to 1988, about 70 technical reports were dealing with specific tasks and cleanup efforts. This report provides an overview of the decontamination and decommissioning work done in that period. The report emphasizes lessons learned during that effort. Significant advances were made in: remote and contact decontamination technology; personnel protection and training; planning and procedures; and radiological controls. 62 refs., 35 figs., 5 tabs

  19. Desert Research and Technology Studies (DRATS) 2010 Science Operations: Operational Approaches and Lessons Learned for Managing Science during Human Planetary Surface Missions

    Science.gov (United States)

    Eppler, Dean; Adams, Byron; Archer, Doug; Baiden, Greg; Brown, Adrian; Carey, William; Cohen, Barbara; Condit, Chris; Evans, Cindy; Fortezzo, Corey; Garry, Brent; Graff, Trevor; Gruener, John; Heldmann, Jennifer; Hodges, Kip; Horz, Friedrich; Hurtado, Jose; Hynek, Brian; Isaacson, Peter; Juranek, Catherine; Klaus, Kurt; Kring, David; Lanza, Nina; Lederer, Susan; Lofgren, Gary

    2012-01-01

    Desert Research and Technology Studies (Desert RATS) is a multi-year series of hardware and operations tests carried out annually in the high desert of Arizona on the San Francisco Volcanic Field. These activities are designed to exercise planetary surface hardware and operations in conditions where long-distance, multi-day roving is achievable, and they allow NASA to evaluate different mission concepts and approaches in an environment less costly and more forgiving than space.The results from the RATS tests allows election of potential operational approaches to planetary surface exploration prior to making commitments to specific flight and mission hardware development. In previous RATS operations, the Science Support Room has operated largely in an advisory role, an approach that was driven by the need to provide a loose science mission framework that would underpin the engineering tests. However, the extensive nature of the traverse operations for 2010 expanded the role of the science operations and tested specific operational approaches. Science mission operations approaches from the Apollo and Mars-Phoenix missions were merged to become the baseline for this test. Six days of traverse operations were conducted during each week of the 2-week test, with three traverse days each week conducted with voice and data communications continuously available, and three traverse days conducted with only two 1-hour communications periods per day. Within this framework, the team evaluated integrated science operations management using real-time, tactical science operations to oversee daily crew activities, and strategic level evaluations of science data and daily traverse results during a post-traverse planning shift. During continuous communications, both tactical and strategic teams were employed. On days when communications were reduced to only two communications periods per day, only a strategic team was employed. The Science Operations Team found that, if

  20. Summary of Planned Implementation for the HTGR Lessons Learned Applicable to the NGNP

    Energy Technology Data Exchange (ETDEWEB)

    Ian Mckirdy

    2011-09-01

    This document presents a reconciliation of the lessons learned during a 2010 comprehensive evaluation of pertinent lessons learned from past and present high temperature gas-cooled reactors that apply to the Next Generation Nuclear Plant Project along with current and planned activities. The data used are from the latest Idaho National Laboratory research and development plans, the conceptual design report from General Atomics, and the pebble bed reactor technology readiness study from AREVA. Only those lessons related to the structures, systems, and components of the Next Generation Nuclear Plant (NGNP), as documented in the recently updated lessons learned report are addressed. These reconciliations are ordered according to plant area, followed by the affected system, subsystem, or component; lesson learned; and finally an NGNP implementation statement. This report (1) provides cross references to the original lessons learned document, (2) describes the lesson learned, (3) provides the current NGNP implementation status with design data needs associated with the lesson learned, (4) identifies the research and development being performed related to the lesson learned, and (5) summarizes with a status of how the lesson learned has been addressed by the NGNP Project.

  1. Land Use and Land Cover - MO 2008 Brownfields Voluntary Cleanup Program Sites (SHP)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — The Brownfields/Voluntary Cleanup Program (BVCP) provides property buyers, sellers, developers, bankers, development agencies, local government and other voluntary...

  2. Hanford Long Term Stewardship Program and Transition [Preparing for Environmental Management Cleanup Completion

    International Nuclear Information System (INIS)

    Long-term stewardship (LTS) at the Hanford Site begins at the completion of the U.S. Department of Energy (DOE), Office of Environmental Management (EM) cleanup mission and is the management of the risks (human health and environmental) associated with any residual contamination and the management of the Site's cultural, biological, and natural resources that remain after the Site is reduced to its post-cleanup-mission size. This document describes the anticipated post-cleanup LTS program, the preparations planned to facilitate the safe and timely transition from the completion of the cleanup program to a future LTS program, and when LTS is complete. Although the completion of cleanup remains several decades away, actions are being taken now to ensure the following: DOE's commitment to meet its long-term, post-cleanup obligations is reaffirmed and that its planning efforts to comply with those obligations are visible; The interface between the cleanup program and the LTS program will be clearly defined; Cleanup decisions will include careful and well-documented consideration of their long-term ramifications (e.g., long-term effectiveness and costs) and Potential impediments to a safe and timely turnover from cleanup to LTS are anticipated and a risk management approach is developed and implemented

  3. Lessons From The Crisis

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    The current worldwide economic recession is not the first of its kind and will not likely be the last. But what should we learn from it? Vinod Thomas, Director General of Independent Evaluation Group at the World Bank Group, discussed the lessons from the crisis during a speech at Peking University in Beijing on February 18. Edited excerpts follow.

  4. Rethinking lessons learned processes

    NARCIS (Netherlands)

    Buttler, T.; Lukosch, S.G.; Kolfschoten, G.L.; Verbraeck, A.

    2012-01-01

    Lessons learned are one way to retain experience and knowledge in project-based organizations, helping them to prevent reinventin,g the wheel or to repeat past mistakes. However, there are several challenges that make these lessonts learned processes a challenging endeavor. These include capturing k

  5. School Violence. Web Lessons.

    Science.gov (United States)

    Constitutional Rights Foundation, Los Angeles, CA.

    In answer to the concerns about school violence in the United States (especially since the tragedy in 1999 at Columbine High School in Littleton, Colorado), this Internet curriculum offers lessons and resources that address the topic of school violence and its causes, as well as the search for solutions. The curriculum presents four world wide web…

  6. A Lesson from Mangroves.

    Science.gov (United States)

    Davis, Stephen

    1987-01-01

    Discusses the importance of interpretive programs in the Northern Territory of Australia. Describes the typical interpretive approach of local school science curricula, which serve 20,000 Aboriginal children. Addresses the curriculum framework, learning strategies, and process skill development, illustrating them through a lesson on mangroves. (TW)

  7. The First Lesson

    OpenAIRE

    Fowler, Keith

    2003-01-01

    A lesson plan using visual arts and reading skills to introduce the concept of delodomatic creativity (thinking “in the box” and “out of the box”) to children. Designed for 1st or 2nd graders it can be adapted to all grade levels.

  8. Hazardous waste market and technology trends

    International Nuclear Information System (INIS)

    What forces are currently driving the growth of the hazardous waste remediation market? Which factors will control the development of cleanup technologies during the next decade? At what types of sites are various technologies being applied? In an effort to answer these questions, EPA has produced an overview of trends in the demand for remedial technologies at CERCLA, RCRA corrective action, underground storage tank (UST), and other cleanup sites across the United States. The 160-page document, entitled Cleaning Up the Nation's Waste Sites: Markets and Technology Trends, was developed by EPA's Office of Solid Waste and Emergency Response. Highlights from the report are presented below. 1 ref., 2 figs., 1 tab

  9. Alternative Energy Lessons in Scotland

    Science.gov (United States)

    Boyle, Julie

    2010-05-01

    bottle, insulating tape, a screwdriver, a connecting block, a solar motor, a plastic fan and thin wires. The only difference was that the wind groups were issued hairdryers and the hydroelectric groups worked at a sink. The wave turbine was constructed in a similar way using the bases from two 5 litre water bottles. Various investigations were conducted into the factors affecting the voltage produced. For instance, the effect of the distance from the light source, the area of the solar cell, the type of blades, the depth of water and the wind speed were studied. The lessons reinforced their understanding of ideas covered in Science and Geography, such as voltage, power, fair tests, compass directions and map contours. Students also had the opportunity to practise connecting electrical components in series and they consolidated their understanding of energy changes, observing that generators convert kinetic energy to electrical energy. The activities allowed students to learn the basics of how renewable energy technologies work. The tasks provided a hands-on experience of renewable energy being used to power small-scale electrical devices such as an LED. The students also gained an appreciation of the complex issues involved in planning and implementing renewable energy generation in the real world.

  10. Issues in UK cleanup and decommissioning; a strategic R and D programme

    International Nuclear Information System (INIS)

    Nexia Solutions is contracted to manage and carry out research on behalf of the Nuclear Decommissioning Authority (NDA). This paper will describe the nuclear research ongoing and how it fits in with the UK cleanup and decommissioning strategy. The aim of the strategic R and D programme is to assist the NDA in maintaining a technical portfolio which will:- - identify and address challenges and clean-up problems that do not have an existing solution; - resolve potential inconsistencies between sites in the technical bases for certain strategic decisions and their implementation; - maintain options while developing strategy (emerging risks); - save costs by developing multi-site solutions; - provide technology, skills and facilities on the timescale required. The strategy for the R and D programme has been developed from a top-level approach by understanding the challenges which need to be addressed and prioritising these according to the objectives of the programme. The programme has demonstrated that a technical portfolio comprising six areas, each containing a number of key themes, is appropriate to address the technical challenges which the NDA faces and aligns with the NDA's technical issues register. An important aspect of the R and D programme is that it should create opportunities for undertaking the NDA mission more effectively. This arises from the emphasis given in those technical programmes which define the challenge more precisely and thus provide a platform from which to produce innovative solutions. The paper will present an overview of the strategic R and D programme along with the key technical programme areas. Examples will be provided of the technical work ongoing, and the results obtained so far. (author)

  11. The strategic planning initiative for accelerated cleanup of Rocky Flats

    International Nuclear Information System (INIS)

    The difficulties associated with the congressional funding cycles, regulatory redirection, remediation schedule deadlines, and the lack of a mixed waste (MW) repository have adversely impacted the environmental restoration (ER) program across the entire U.S. Department of Energy (DOE) complex including Rocky Flats Plant (RFP). In an effort to counteract and reduce the impacts of these difficulties, RFP management saw the need for developing a revised ER Program. The objective of the revised ER approach is to identify an initiative that would accelerate the cleanup process and reduce costs without compromising either protection of human health or the environment. A special analysis with that assigned objective was initiated in June 1993 using a team that included DOE Headquarters and Rocky Flats Field Office (RFFO), EG ampersand G personnel, and experts from nationally recognized ER firms. The analysis relied on recent regulatory and process innovations such as DOE's Streamlined Approach for Environmental Restoration (SAFER) and EPA's Superfund Accelerated Cleanup Model (SACM) and Corrective Action Management Units (CAMU). The analysis also incorporated other ongoing improvements efforts initiated by RFP, such as the Quality Action Team and the Integrated Planning Process

  12. Solvent cleanup using base-treated silica gel solid adsorbent

    International Nuclear Information System (INIS)

    A solvent cleanup method using silica gel columns treated with either sodium hydroxide (NaOH) or lithium hydroxide (LiOH) has been investigated. Its effectiveness compares favorably with that of traditional wash methods. After treatment with NaOH solution, the gels adsorb HNO3, dibutyl phosphate (DBP), UO22+, Pu4+, various metal-ion fission products, and other species from the solvent. Adsorption mechanisms include neutralization, hydrolysis, polymerization, and precipitation, depending on the species adsorbed. Sodium dibutyl phosphate, which partially distributes to the solvent from the gels, can be stripped with water; the stripping coefficient ranges from 280 to 540. Adsorption rates are diffusion controlled such that temperature effects are relatively small. Recycle of the gels is achieved either by an aqueous elution and recycle sequence or by a thermal treatment method, which may be preferable. Potential advantages of this solvent cleanup method are that (1) some operational problems are avoided and (2) the amount of NaNO3 waste generated per metric ton of nuclear fuel reprocessed would be reduced significantly. 19 references, 6 figures, 12 tables

  13. Hydrophobic modification of polyurethane foam for oil spill cleanup

    International Nuclear Information System (INIS)

    To improve the oleophilic/hydrophobic properties of polyurethane (PU) foams for oil spill cleanup, PU samples were modified by grafting with oleophilic monomer Lauryl methacrylate (LMA) in solvent and/or coating with LMA microspheres through heating and curing. Modified PU cubes were characterized by field emission scanning electron microscopy (FE-SEM) and Fourier transform infrared spectroscopy (FTIR). The water sorption of modified PU cubes was decreased by 24–50%, while the diesel or kerosene sorption of modified PU cubes was increased by 18–27%. In water–oil system, compared with blank PU cubes, the sorption capacity of PU cubes grafted with LMA was increased by 44% for diesel and 100% for kerosene. The sorption capacity of PU cubes coated with LMA microspheres was increased by 20% for diesel and 7% for kerosene. The solvent sorption of modified PU cubes could reach 50–69 g/g. The modified PU cubes can be effectively used in oil/solvent spill cleanup.

  14. A computer program for deriving soil cleanup criteria

    International Nuclear Information System (INIS)

    The US Department of Energy (DOE) has issued a new order, DOE Order 5400.5, for Radiation Protection of the Public and the Environment. In this order, the DOE sets forth radiological protection guidelines for the cleanup of residual radioactive materials. Radionuclide concentrations and radioactivity levels have been established that are acceptable if a site is to be used without radiological restrictions. The guidelines can be categorized as either generic (site independent), that is, taken from existing radiation protection standards, or site specific, that is, derived from the basic dose limit using site-specific data and models. The generic guidelines for soil concentrations of 226Ra, 228Ra, 230Th, and 232Th adopted in DOE Order 5400.5 are generally consistent with US Environmental Protection Agency standards in Title 40, Code of Federal Regulations, Part 192. Procedures and data for deriving site-specific guidelines for other radionuclides in soil have been coded in a microcomputer program called RESRAD. The RESRAD code has been used by the DOE and its contractors to calculate postremediation doses and cleanup guidelines. The RESRAD code is a useful, easy to run, and very user-friendly tool

  15. Aviation safely management, Valdez oil spill clean-up

    International Nuclear Information System (INIS)

    The March 24, 1989 Exxon Valdez oil spill in Alaska's Prince William Sound (PWS) resulted in an unprecedented mobilization of personnel and oil spill clean-up equipment. This paper describes the comprehensive safety management system implemented for aviation operations supporting the clean-up response in PWS and the Gulf of Alaska (GOA). Aviation support operations quickly expanded to over 100 aircraft obtained from numerous sources. Beginning with early surveillance flights, aviation operations were subject to comprehensive safety management programs, including safety assessments, minimum flight weather criteria, operational standards and procedures, air carrier qualifications, equipment and procedure audits, and emergency response. Communication networks and flight following procedures were established, arctic survival training was conducted, and a full complement of survival equipment was required. These programs were largely responsible for safety performance of the spill response effort-during the 1989-92 response activities, over 56,000 flight hours, 159,000 equivalent passengers, and 20,000 tons of cargo were handled without an aviation related injury. The programs are applicable to offshore development and operational activities, particularly those located in more remote, severe environments

  16. The Western Environmental Technology Office (WETO), Butte, Montana, technology summary

    Energy Technology Data Exchange (ETDEWEB)

    1994-09-01

    This document has been prepared by the DOE Environmental Management (EM) Office of Technology Development (OTD) to highlight its research, development, demonstration, testing, and evaluation activities funded through the Western Environmental Technology Office (WETO) in Butte, Montana. Technologies and processes described have the potential to enhance DOE`s cleanup and waste management efforts, as well as improve US industry`s competitiveness in global environmental markets. WETO`s environmental technology research and testing activities focus on the recovery of useable resources from waste. Environmental technology development and commercialization activities will focus on mine cleanup, waste treatment, resource recovery, and water resource management. Since the site has no record of radioactive material use and no history of environmental contamination/remediation activities, DOE-EM can concentrate on performing developmental and demonstration activities without the demands of regulatory requirements and schedules. Thus, WETO will serve as a national resource for the development of new and innovative environmental technologies.

  17. The Western Environmental Technology Office (WETO), Butte, Montana, technology summary

    International Nuclear Information System (INIS)

    This document has been prepared by the DOE Environmental Management (EM) Office of Technology Development (OTD) to highlight its research, development, demonstration, testing, and evaluation activities funded through the Western Environmental Technology Office (WETO) in Butte, Montana. Technologies and processes described have the potential to enhance DOE's cleanup and waste management efforts, as well as improve US industry's competitiveness in global environmental markets. WETO's environmental technology research and testing activities focus on the recovery of useable resources from waste. Environmental technology development and commercialization activities will focus on mine cleanup, waste treatment, resource recovery, and water resource management. Since the site has no record of radioactive material use and no history of environmental contamination/remediation activities, DOE-EM can concentrate on performing developmental and demonstration activities without the demands of regulatory requirements and schedules. Thus, WETO will serve as a national resource for the development of new and innovative environmental technologies

  18. Technology

    Directory of Open Access Journals (Sweden)

    Xu Jing

    2016-01-01

    Full Text Available The traditional answer card reading method using OMR (Optical Mark Reader, most commonly, OMR special card special use, less versatile, high cost, aiming at the existing problems proposed a method based on pattern recognition of the answer card identification method. Using the method based on Line Segment Detector to detect the tilt of the image, the existence of tilt image rotation correction, and eventually achieve positioning and detection of answers to the answer sheet .Pattern recognition technology for automatic reading, high accuracy, detect faster

  19. Analyzing HEAT of Lesson Plans in Pre-Service and Advanced Teacher Education

    Directory of Open Access Journals (Sweden)

    Margaret Maxwell

    2011-05-01

    Full Text Available Higher-order thinking, Engagement, Authenticity, and Technology integration combine to form HEAT to boost the rigor of a lesson plan to impact K-12 student learning. This preliminary study examines both pre-service and advanced teachers’ lesson plans to determine the level in each of the HEAT components. Through this study an instrument has been revised and refined using previous research of HEAT. The researchers assessed the current HEAT level of lesson plans at both the undergraduate and graduate levels. The findings show a difference in HEAT performance of the pre-service and advanced teachers’ lesson plans; however, Higher-order thinking was the highest component of performance for both groups’ lesson plans. In this preliminary study, Technology was found to be the strongest predictor of overall HEAT performance.

  20. Experience with dispersant application: long-path recirculation cleanup trial at Byron Unit 1 during spring 2011 and online addition update

    International Nuclear Information System (INIS)

    The first nuclear application of PAA dispersant to improve corrosion product removal during LPR (Long-path recirculation) cleanup occurred at Byron Unit 1 in spring 2011. The main conclusions and lessons learned are as follows: -) there were no significant problems with application of PAA during LPR with an initial PAA concentration of about 650 ppb; -) a reasonable estimate of the additional iron mass removed due to the presence of PAA is 5-9 kg. The qualification work, application details and an assessment of the results are the first focus of this paper. The second part of this paper summarizes the online experience to date at the Exelon and STP (South Texas Project) plants on the effects of dispersant on -) blowdown iron removal efficiency, -) steam generator heat transfer efficiency and -) ion exchange resin performance

  1. 40 CFR 312.25 - Searches for recorded environmental cleanup liens.

    Science.gov (United States)

    2010-07-01

    ... local law. (b) All information collected regarding the existence of such environmental cleanup liens... 40 Protection of Environment 27 2010-07-01 2010-07-01 false Searches for recorded environmental cleanup liens. 312.25 Section 312.25 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY...

  2. Preliminary cleanup activities at vicinity properties near Salt Lake City, Utah: Environmental assessment

    International Nuclear Information System (INIS)

    This document describes the preliminary cleanup activities and their impacts for the approximately 100 properties in Salt Lake Valley that have been contaminated by radioactive tailings from the site of the inactive Vitro uranium mill. The 23 properties already included on the official list for cleanup have been used as the basis for estimating impacts at all 100 sites

  3. Development of a risk-based approach to Hanford Site cleanup

    International Nuclear Information System (INIS)

    In response to a request from Mr. Thomas Grumbly, Assistant Secretary of Energy for Environmental Management, the Hanford Site contractors developed a conceptual set of risk-based cleanup strategies that (1) protect the public, workers, and environment from unacceptable risks; (2) are executable technically; and (3) fit within an expected annual funding profile of 1.05 billion dollars. These strategies were developed because (1) the US Department of Energy and Hanford Site budgets are being reduced, (2) stakeholders are dissatisfied with the perceived rate of cleanup, (3) the US Congress and the US Department of Energy are increasingly focusing on risk and riskreduction activities, (4) the present strategy is not integrated across the Site and is inconsistent in its treatment of similar hazards, (5) the present cleanup strategy is not cost-effective from a risk-reduction or future land use perspective, and (6) the milestones and activities in the Tri-Party Agreement cannot be achieved with an anticipated funding of 1.05 billion dollars annually. The risk-based strategies described herein were developed through a systems analysis approach that (1) analyzed the cleanup mission; (2) identified cleanup objectives, including risk reduction, land use, and mortgage reduction; (3) analyzed the existing baseline cleanup strategy from a cost and risk perspective; (4) developed alternatives for accomplishing the cleanup mission; (5) compared those alternatives against cleanup objectives; and (6) produced conclusions and recommendations regarding the current strategy and potential risk-based strategies

  4. Techniques for laser spectroscopy of actinide elements: developments in the clean-up process

    International Nuclear Information System (INIS)

    Configuration of an efficient laser clean-up process requires a large amount of basic atomic data provided by careful high resolution spectroscopic experiments involving one or several lasers, both pulsed and cw. Efforts in developing such sources for high resolution spectroscopy in the context of the clean-up process are discussed

  5. Full automatic clean-up robot for dioxin/PCB analysis

    Energy Technology Data Exchange (ETDEWEB)

    Matsumura, T.; Masuzaki, Y.; Takahashi, A.; Koizumi, A. [METOCEAN Environment Inc., Shizuoka (Japan). Environmental Risk Research Center, Inst. of General Science for Environment; Okuyama, H.; Kawada, Y.; Higashiguchi, T. [Moritex Corporation, Yokohama (Japan)

    2004-09-15

    Dioxin analysis requires several steps of clean-up procedures by combination of several column chromatography (e.g. silica gel column chromatography, carbon column chromatography) and sulfuric acid treatment. Full Automatic Clean-up Robot for Dioxin and PCB were developed.

  6. Development of a risk-based approach to Hanford Site cleanup

    Energy Technology Data Exchange (ETDEWEB)

    Hesser, W.A.; Daling, P.M. [Pacific Northwest Lab., Richland, WA (United States); Baynes, P.A. [Westinghouse Hanford Co., Richland, WA (United States)] [and others

    1995-06-01

    In response to a request from Mr. Thomas Grumbly, Assistant Secretary of Energy for Environmental Management, the Hanford Site contractors developed a conceptual set of risk-based cleanup strategies that (1) protect the public, workers, and environment from unacceptable risks; (2) are executable technically; and (3) fit within an expected annual funding profile of 1.05 billion dollars. These strategies were developed because (1) the US Department of Energy and Hanford Site budgets are being reduced, (2) stakeholders are dissatisfied with the perceived rate of cleanup, (3) the US Congress and the US Department of Energy are increasingly focusing on risk and riskreduction activities, (4) the present strategy is not integrated across the Site and is inconsistent in its treatment of similar hazards, (5) the present cleanup strategy is not cost-effective from a risk-reduction or future land use perspective, and (6) the milestones and activities in the Tri-Party Agreement cannot be achieved with an anticipated funding of 1.05 billion dollars annually. The risk-based strategies described herein were developed through a systems analysis approach that (1) analyzed the cleanup mission; (2) identified cleanup objectives, including risk reduction, land use, and mortgage reduction; (3) analyzed the existing baseline cleanup strategy from a cost and risk perspective; (4) developed alternatives for accomplishing the cleanup mission; (5) compared those alternatives against cleanup objectives; and (6) produced conclusions and recommendations regarding the current strategy and potential risk-based strategies.

  7. Cleanup Verification Package for the 118-F-5 PNL Sawdust Pit

    Energy Technology Data Exchange (ETDEWEB)

    L. D. Habel

    2008-05-20

    This cleanup verification package documents completion of remedial action, sampling activities, and compliance with cleanup criteria for the 118-F-5 Burial Ground, the PNL (Pacific Northwest Laboratory) Sawdust Pit. The 118-F-5 Burial Ground was an unlined trench that received radioactive sawdust from the floors of animal pens in the 100-F Experimental Animal Farm.

  8. Monitoring methods for determining compliance with decommissioning cleanup criteria at uranium recovery sites

    International Nuclear Information System (INIS)

    Decommissioning of a uranium processing site requires radiological surveys to: (1) identify buildings, equipment, and open land areas that require cleanup; (2) verify that cleanup operations have been successful; and (3) provide a record of the radiological condition of the site following cleanup. This report describes the instruments, measurements, quality assurance, and statistical procedures that can be used to perform pre- and post-cleanup surveys. The procedures described include: (1) gamma-radiation exposure-rate measurements using micro-R-meters, (2) beta-gamma measurements using Geiger-Mueller tubes, (3) wipe tests for surface contamination, and (4) soil analyses for 226Ra and other 238U daughters. During the pre-cleanup survey, locations likely to have 226Ra concentrations that exceed standards can be identified by gamma-radiation exposure-rate measurements. Samples of soil or other material from locations showing elevated exposure rates then can be analyzed for 226Ra to determine the boundaries of areas that exceed standards. Measurements of 238U in the samples can be used to determine whether the 226Ra is due to mill tailings. Beta-gamma measurements and wipe-sample analyses at locations that are suspected of being contaminated with uranium can be used to determine whether uranium concentrations exceed standards for either fixed or removable contamination. A post-cleanup survey that is similar to the pre-cleanup survey can be used to verify that cleanup has been successful. 16 refs

  9. Waste Management: Cleanup costs of DOE sites to total at least $230 billion; Dry spent fuel storage planned for North Anna; NRC undertakes changes to HLW,LLW regulations

    International Nuclear Information System (INIS)

    It will take up to 75 years and between $230 billion and $350 billion to clean up the Department of Energy's former weapons productions facilities, according to the 1995 Baseline Environmental Management Report, issued on April 3, 1995. Thomas Grumbly, assistant secretary for environmental management, said that this is the most reliable estimate to date. Other estimates made in the past for the amount of time the cleanup would take were 30 years (the very rough estimate of former Environmental Restoration and Waste Management head Leo Duffy), and 50 years, an estimate mentioned last November during the American Nuclear Society's Winter Meeting by a DOE representative. Most of the cleanup costs would be expended over a 40-year period, but work at some sites would continue until 2070. Approximately 70 percent of the cleanup costs would go to clean up five sites; Hanford and Savannah River, 21 percent each; Rocky Flats, 10 percent; Oak Ridge National Laboratory, 10 percent; and the Idaho National Engineering Laboratory, 5 percent. The cost estimates are higher than the DOE's proposed budget for cleanup and environmental restoration, which has been around $6 billion a year. Nor do they include remediation of sites for which no viable cleanup technology exists (the Nevada Test Site and the U.S. Navy's nuclear propulsion facilities) or those plants that are still producing or disassembling nuclear weapons parts (such as the Pantex facility, near Amarillo, Tex.). Expenditures already made during the first five years of the cleanup program, estimated at $23 billion, are also not included in the new cost estimates. The DOE estimates that the total amount of radioactive waste that will result from the cleanup and requiring disposal will be around 33 million yd3

  10. Lessons from Goiania

    International Nuclear Information System (INIS)

    The lessons learned from the radiological accident of Goiania in 1987 derived from the observations from the Regulatory Agency which was in charge of the decontamination tasks may be consolidated into four classes: Preventive Actions, characterised as those that aim to minimise the probability of occurrence of a radiological accident; Minimisation of time between the moment of the accident occurrence and the beginning of intervention, in case a radiological accident does occur, despite all preventive measures; Intervention, which is correlated to the type of installation, its geographical location, the social classes involved and their contamination vectors; and Follow up, for which well established rules to allow continuing monitoring of the victims and rebuilding of homes are necessary. The greatest lesson of all was the need for integration of the professionals involved, from all organizations. (author)

  11. Achievements and Lessons from Tevatron

    Energy Technology Data Exchange (ETDEWEB)

    Shiltsev, V.; /Fermilab

    2011-01-01

    For almost a quarter of a century, the Tevatron proton-antiproton collider was the centerpiece of the world's high energy physics program - beginning operation in December of 1985 until it was overtaken by LHC in 2011. The aim of the this unique scientific instrument was to explore the elementary particle physics reactions with center of mass collision energies of up to 1.96 TeV. The initial design luminosity of the Tevatron was 10{sup 30} cm{sup -2}s{sup -1}, however as a result of two decades of upgrades, the accelerator has been able to deliver 430 times higher luminosities to each of two high luminosity experiments, CDF and D0. Tevatron will be shut off September 30, 2011. The collider was arguably one of the most complex research instruments ever to reach the operation stage and is widely recognized for many technological breakthroughs and numerous physics discoveries. Below we briefly present the history of the Tevatron, major advances in accelerator physics, and technology implemented during the long quest for better and better performance. We also discuss some lessons learned from our experience.

  12. Lesson study, deel 1

    OpenAIRE

    Verhoef, Nellie

    2011-01-01

    Nellie Verhoef schreef in het Nieuw Archief voor Wiskunde al over de Lesson Study. Een handreiking om denkactiviteiten te ontwerpen in een samenwerkingsverband. Het onderwerp is echter zo veelzijdig dat ze er in Euclides ook aandacht aan besteedt, we publiceren haar artikel in twee delen. Dit eerste deel geeft een overzicht van de methode en een voorbeeld van denkactiviteiten. Het tweede deel gaat concreet in op het samenwerkingsverband en de resultaten daarvan

  13. World War II: A Technology Lesson Plan.

    Science.gov (United States)

    Hagar, Suzy

    1990-01-01

    Presents a class activity on the history, causes, and consequences of World War II. Focuses on the development and deployment of the atomic bomb. Utilizes a Video Encyclopedia Program for historical background. Divides the class into groups that are responsible for researching and preparing a videotape on a World War II topic. (RW)

  14. Pursing other deep pockets: California's underground storage tank cleanup fund and insurance policies

    International Nuclear Information System (INIS)

    When faced with a potentially very expensive environmental cleanup, most companies and individuals try to do the only sensible thing, which is to find out if anyone else will pay the bill. This presentation will outline two avenues that may provide a substantial financial contribution to environmental cleanups: (a) California's Underground Storage Tank Cleanup Fund and (b) insurance policies. The Underground Storage Tank Cleanup Fund was established in 1989 to help eligible owners and operators of petroleum underground storage tanks (USTs) to: (a) get reimbursed for costs of unauthorized releases of petroleum from USTs; (b) get reimbursed for damages awarded to third parties as a result of unauthorized releases of petroleum from USTs; and (c) meet federal and state requirements that the UST owner and/or operator be able to pay for cleanup costs and damages to third parties caused by unauthorized releases of petroleum

  15. Statistical design and analysis in the cleanup of environmental radionuclide contamination. DRI publication No. 45012

    International Nuclear Information System (INIS)

    The cleanup of Eniwetok Island before the return of former residents is discussed. Of the contaminants in the soil of the atoll, the most important for cleanup are Pu-238, 239,240, and Am-241, which are present in sufficient quantities to require cleanup, and isotopes of Sr and Cs which also are present and must be considered since these elements can be taken up by food plants such as coconut, pandanus, and breadfruit, and passed on to man. The design of the cleanup sampling program is described. In addition to soil contamination, much metal and concrete debris, not all of it contaminated, as well as buildings and equipment, remain from the testing. The clean-up agreement covered all of this material, contaminated or not

  16. Clean-up criteria for remediation of contaminated soils

    International Nuclear Information System (INIS)

    'How clean is clean?' is a question commonly raised in the remediation of contaminated soils. To help with the answer, criteria are proposed to serve as guidelines for remedial actions and to define a clean-up level such that the remaining contaminant residuals in the soil will not violate the Drinking Water Standards (DWS). The equations for computing those criteria are developed from the principle of conservation of mass and are functions of the maximum concentration level in the water (MCL) and the sorption coefficient. A multiplier, ranging from 10 to 1000, is also factored into the soil standard equation to reflect the effectiveness of various remediation techniques. Maximum allowable concentration in the soil (MSCL) is presented for several contaminants which are being regulated at the present time. Future modifications are recommended for better estimates of the MSCLs as additional transport mechanisms are incorporated to account for other potentially dominant effects

  17. Statistical methods for evaluating the attainment of cleanup standards

    Energy Technology Data Exchange (ETDEWEB)

    Gilbert, R.O.; Simpson, J.C.

    1992-12-01

    This document is the third volume in a series of volumes sponsored by the US Environmental Protection Agency (EPA), Statistical Policy Branch, that provide statistical methods for evaluating the attainment of cleanup Standards at Superfund sites. Volume 1 (USEPA 1989a) provides sampling designs and tests for evaluating attainment of risk-based standards for soils and solid media. Volume 2 (USEPA 1992) provides designs and tests for evaluating attainment of risk-based standards for groundwater. The purpose of this third volume is to provide statistical procedures for designing sampling programs and conducting statistical tests to determine whether pollution parameters in remediated soils and solid media at Superfund sites attain site-specific reference-based standards. This.document is written for individuals who may not have extensive training or experience with statistical methods. The intended audience includes EPA regional remedial project managers, Superfund-site potentially responsible parties, state environmental protection agencies, and contractors for these groups.

  18. Soil, groundwater cleanup takes the gamble out of casino operation

    International Nuclear Information System (INIS)

    Colorado's rich stores of gold and silver sparked development of towns like Black Hawk and Central City in the 1890s. Today, these communities are the homes of limited-stakes gaming operations. However casino operators are discovering that having gold and silver underground in the form of tailings is not as desirable as collecting it aboveground in slot machines. A unique environmental engineering approach allowed construction of two new casinos and reclamation of the tailings, as well as cleanup of petroleum-saturated soils and groundwater. A treatment system was designed and constructed to treat groundwater at the Black Hawk site. The most economical alternative for disposing treated groundwater was to discharge it into nearby North Clear Creek. An NPDES permit was obtained requiring treatment of the groundwater for petroleum, heavy metals and pH before discharging it

  19. Hot Chili Peppers: Extraction, Cleanup, and Measurement of Capsaicin

    Science.gov (United States)

    Huang, Jiping; Mabury, Scott A.; Sagebiel, John C.

    2000-12-01

    Capsaicin, the pungent ingredient of the red pepper or Capsicum annuum, is widely used in food preparation. The purpose of this experiment was to acquaint students with the active ingredients of hot chili pepper (capsaicin and dihydrocapsaicin), the extraction, cleanup, and analysis of these chemicals, as a fun and informative analytical exercise. Fresh peppers were prepared and extracted with acetonitrile, removing plant co-extractives by addition to a C-18 solid-phase extraction cartridge. Elution of the capsaicinoids was accomplished with a methanol-acetic acid solution. Analysis was completed by reverse-phase HPLC with diode-array or variable wavelength detection and calibration with external standards. Levels of capsaicin and dihydrocapsaicin were typically found to correlate with literature values for a specific hot pepper variety. Students particularly enjoyed relating concentrations of capsaicinoids to their perceived valuation of "hotness".

  20. RCRA corrective action: Action levels and media cleanup standards

    International Nuclear Information System (INIS)

    This Information Brief describes how action levels (ALs), which are used to determine if it is necessary to perform a Corrective Measures Study (CMS), and media cleanup standards (MCSs), which are used to set the standards for remediation performed in conjunction with Corrective Measures Implementation (CMI) are set. It is one of a series of Information Briefs on RCRA Corrective Action. ALs are health-and-environmentally-based levels of hazardous constituents in ground water, surface water, soil, or air, determined to be indicators for protection of human health and the environment. In the corrective action process, the regulator uses ALs to determine if the owner/operator of a treatment, storage, or disposal facility is required to perform a CMS

  1. The Fort McMurray Historic Uranium Cleanup Project

    Energy Technology Data Exchange (ETDEWEB)

    Geddes, R.B. [AMEC Earth and Environmental, Environmental Div., Oakville, Ontario (Canada)]. E-mail: brian.geddes@amec.com; Case, G.G. [Atomic Energy of Canada Limited, Port Hope, Ontario (Canada)]. E-mail: caseg@aecl.ca; Doney, R. [Marshall Macklin Moaghan Limited, Environmental Management, Thornhill, Ontario (Canada)]. E-mail: Doneyr@mmm.ca

    2006-07-01

    The Fort McMurray Historic Uranium Cleanup Project involved the removal of 42,000 m{sup 3} of soils contaminated with uranium ores and ore concentrates from various properties in the City of Fort McMurray, Alberta. These soils were placed into long-term management in a dedicated, locally developed and secure facility. The soil contamination addressed by the program was the result of incidental spillage and tracking of ores during the unloading of barges and the loading of rail cars as materials were transported via Fort McMurray from uranium mines in the Northwest Territories to a refinery in Port Hope, Ontario. The project was executed over a 10- year time period, involved the participation of the local community at critical junctures, and restored 28 ha of land to productive use. (author)

  2. Williston Reservoir: Site preparation and post-flood cleanup

    International Nuclear Information System (INIS)

    Williston Reservoir is the second largest in Canada and ranks ninth on the world scale. It was formed by the construction of the W.A.C. Bennet Dam and is the most important hydroelectric storage reservoir and largest body of fresh water in British Columbia. Site preparation for the reservoir began in 1962, with pre-flood clearing involving salvage of merchantable timber, handfalling, machine downing, burning of slash and burial. Post-flood cleanup included timber salvage, bailing and burning debris, tractor piling and burning, crane piling in shallows, underwater cutting, and hand cutting during low drawdown. Various types of floating debris have presented problems for recreational use, log booming and transport, waterways and aviation. Protection of the spillway is accomplished with a floating boom upstream of the channel. Administration, funding, forest clearance, salvage methods, clearing standards, wood volumes, project costs, environmental concerns, and future priorities are discussed. 5 figs., 2 tabs

  3. Plutonium contamination at Maralinga - dosimetry and clean-up criteria

    International Nuclear Information System (INIS)

    An area of South Australia remained contaminated following British nuclear weapons tests at Maralinga during 1955 - 1963. Of importance is the long-lived 239-Pu of which some 24 kg was explosively dispersed in several 'minor trials'. The extent, quantities and physical characteristics of the plutonium have been assessed and estimates of dose, dominated by the inhalation pathway in the critical group of Aborigines living a semi-traditional lifestyle, have been made for potential occupants. Rehabilitation of the most contaminated areas is underway, involving scraping of surface soil and burial at depth on site. Dosimetry, together with social and economic factors, underpins the setting of clean-up criteria in terms of activity concentrations averaged over large areas and permissible concentrations of contaminated particles. The possibility of intentional behaviour such as fragment scavenging has also influenced limits on particulate contamination.The standard for this intervention is that the annual committed dose, for any scenario involving permanent occupancy by semi-traditional Aborigines, will be less than 5 mSv. In fact, following the clean-up, annual doses are not expected to exceed 1 mSv for all realistic scenarios. The possibility of intentional behaviour, such as fragment scavenging, has led to limits on particulate contamination. Three plutonium-contaminated sites have been treated by soil-removal. At Taranaki, the most contaminated site, by limiting the activity of the remaining soil to below about 400 kBq/m2 of 239Pu, and by limiting occupancy factors to those typical of hunting activities in a particular location (0.8%), the dose criteria will be met. An area of about 1.5 km2 has been treated by removal of surface soil at Taranaki. At the other two sites, with no occupancy constraints, more stringent soil-removal criteria have been applied

  4. Oil spill cleanup in severe weather and open ocean conditions

    International Nuclear Information System (INIS)

    Most serious oil spills occur in open water under severe weather conditions. At first the oil stays on the surface, where it is spread by winds and water currents. The action of the waves then mixes the oil into the water column. With time the light elements of crude oil evaporate. The remaining residue is of very low commercial value, but of significant environmental impact. The oil spill can move either out to sea or inshore, where it ends up on the beaches. Normal procedures are to let outbound oil disperse by evaporation and mixing into the water column, and to let the inbound oil collect on the beaches, where the cleanup operations are concentrated. The reason for this is that there is no capability to clean the surface of the water in wave conditions-present-day oil skimmers are ineffective in waves approaching 4 ft in height. It would be simpler, more effective and environmentally more beneficial to skim the oil right at the spill location. This paper describes a method to do this. In the case of an oil spill in open water and high wave conditions, it is proposed to reduce the height of the ocean waves by the use of floating breakwaters to provide a relatively calm area. In such protected areas existing oil skimmers can be used to recover valuable oil and clean up the spill long before it hits the beaches. A floating breakwater developed at the University of Rhode Island by the author can be of great benefit in oil spill cleanup for open ocean conditions. This breakwater is constructed from scrap automobile tires. It is built in units of 20 tires each, which are easily transportable and can be connected together at the spill site to form any desired configuration

  5. Plutonium contamination at Maralinga - dosimetry and clean-up criteria

    Energy Technology Data Exchange (ETDEWEB)

    Cooper, M.B.; Martin, L.J.; O`Brien, R.S.; Williams, G.A. [Australian Radiation Laboratory, Yallambie, VIC (Australia)

    1998-12-31

    An area of South Australia remained contaminated following British nuclear weapons tests at Maralinga during 1955 - 1963. Of importance is the long-lived 239-Pu of which some 24 kg was explosively dispersed in several `minor trials`. The extent, quantities and physical characteristics of the plutonium have been assessed and estimates of dose, dominated by the inhalation pathway in the critical group of Aborigines living a semi-traditional lifestyle, have been made for potential occupants. Rehabilitation of the most contaminated areas is underway, involving scraping of surface soil and burial at depth on site. Dosimetry, together with social and economic factors, underpins the setting of clean-up criteria in terms of activity concentrations averaged over large areas and permissible concentrations of contaminated particles. The possibility of intentional behaviour such as fragment scavenging has also influenced limits on particulate contamination.The standard for this intervention is that the annual committed dose, for any scenario involving permanent occupancy by semi-traditional Aborigines, will be less than 5 mSv. In fact, following the clean-up, annual doses are not expected to exceed 1 mSv for all realistic scenarios. The possibility of intentional behaviour, such as fragment scavenging, has led to limits on particulate contamination. Three plutonium-contaminated sites have been treated by soil-removal. At Taranaki, the most contaminated site, by limiting the activity of the remaining soil to below about 400 kBq/m2 of 239Pu, and by limiting occupancy factors to those typical of hunting activities in a particular location (0.8%), the dose criteria will be met. An area of about 1.5 km{sup 2} has been treated by removal of surface soil at Taranaki. At the other two sites, with no occupancy constraints, more stringent soil-removal criteria have been applied

  6. Organizational safety factors research lessons learned

    International Nuclear Information System (INIS)

    This Paper reports lessons learned and state of knowledge gained from an organizational factors research activity involving commercial nuclear power plants in the United States, through the end of 1991, as seen by the scientists immediately involved in the research. Lessons learned information was gathered from the research teams and individuals using a question and answer format. The following five questions were submitted to each team and individual: (1) What organizational factors appear to influence safety performance in some systematic way, (2) Should organizational factors research focus at the plant level, or should it extend beyond the plant level to the parent company, rate setting commissions, regulatory agencies, (3) How important is having direct access to plants for doing organizational factors research, (4) What lessons have been learned to date as the result of doing organizational factors research in a nuclear regulatory setting, and (5) What organizational research topics and issues should be pursued in the future? Conclusions based on the responses provided for this report are that organizational factors research can be conducted in a regulatory setting and produce useful results. Technologies pioneered in other academic, commercial, and military settings can be adopted for use in a nuclear regulatory setting. The future success of such research depends upon the cooperation of regulators, contractors, and the nuclear industry

  7. Learning Style Responses to an Online Soil Erosion Lesson

    Science.gov (United States)

    Mamo, Martha; Kettler, Timothy; Hussman, Dann

    2005-01-01

    Our objective was to evaluate responses from students with different learning styles to the use of computer technology as a supplemental tool in teaching soil erosion concepts. The online lesson utilized photographs, illustrations, animations, and an interactive model that allowed students to manipulate factors influencing soil erosion. Students…

  8. Preparing Future Teacher Leaders: Lessons from Exemplary School Systems

    Science.gov (United States)

    Schrum, Lynne; Levin, Barbara B.

    2013-01-01

    In this paper, we argue that teachers have an opportunity to take on leadership roles in technology-rich schools and districts. Based on data collected during a year-long project to investigate award-winning schools and districts, we used observations, interviews and focus groups, and document analysis to glean lessons learned from leaders and…

  9. Flight Planning Branch Space Shuttle Lessons Learned

    Science.gov (United States)

    Price, Jennifer B.; Scott, Tracy A.; Hyde, Crystal M.

    2011-01-01

    Planning products and procedures that allow the mission flight control teams and the astronaut crews to plan, train and fly every Space Shuttle mission have been developed by the Flight Planning Branch at the NASA Johnson Space Center. As the Space Shuttle Program ends, lessons learned have been collected from each phase of the successful execution of these Shuttle missions. Specific examples of how roles and responsibilities of console positions that develop the crew and vehicle attitude timelines will be discussed, as well as techniques and methods used to solve complex spacecraft and instrument orientation problems. Additionally, the relationships and procedural hurdles experienced through international collaboration have molded operations. These facets will be explored and related to current and future operations with the International Space Station and future vehicles. Along with these important aspects, the evolution of technology and continual improvement of data transfer tools between the shuttle and ground team has also defined specific lessons used in the improving the control teams effectiveness. Methodologies to communicate and transmit messages, images, and files from Mission Control to the Orbiter evolved over several years. These lessons have been vital in shaping the effectiveness of safe and successful mission planning that have been applied to current mission planning work in addition to being incorporated into future space flight planning. The critical lessons from all aspects of previous plan, train, and fly phases of shuttle flight missions are not only documented in this paper, but are also discussed as how they pertain to changes in process and consideration for future space flight planning.

  10. What Lessons Can We Learn?

    Science.gov (United States)

    Hart, W. A.

    2012-01-01

    It has become commonplace to ask, whenever anything has gone wrong, what lessons can be learned from the experience. But the appearance of open-endedness in that question is misleading: not every answer that we could give to it is acceptable. There are, in the context of such a question, tacit constraints in what counts as a valid lesson to be…

  11. Keiko, Killer Whale. [Lesson Plan].

    Science.gov (United States)

    Discovery Communications, Inc., Bethesda, MD.

    This lesson plan presents activities designed to help students understand that Keiko, the killer whale, lived for a long time in an aquarium and had to be taught to live independently; and that computer users can get updates on how Keiko is doing. The main activity of the lesson involves middle school students working in small groups to produce a…

  12. Challenges Achieved By Innovative Technologies Our Link to a Safer, Cleaner, Healthier Tomorrow - 12369

    International Nuclear Information System (INIS)

    The River Corridor Closure Project is the nation's largest environmental cleanup closure project where innovative technologies are being utilized to overcome DOE's environmental clean-up challenges. DOE provides a Technology Needs Statement that specifies their on-site challenges and the criteria to overcome those challenges. This allows for both the private sector and federally funded organizations to respond with solutions that meet their immediate needs. DOE selects the company based on their ability to reduce risk to human health and the environment, improve efficiency of the cleanup, and lower costs. These technologies are our link to a cleaner, safer, healthier tomorrow. (authors)

  13. Lessons learned from the NREL village power program

    Energy Technology Data Exchange (ETDEWEB)

    Taylor, R.W. [National Renewable Energy Lab., Golden, CO (United States)

    1998-09-01

    Renewable energy solutions for village power applications can be economical, functional, and sustainable. Pilot projects are an appropriate step in the development of a commercially viable market for rural renewable energy solutions. Moreover, there are a significant number of rural electrification projects under way that employ various technologies, delivery mechanisms, and financing arrangements. These projects, if properly evaluated, communicated, and their lessons incorporated in future projects and programs, can lead the way to a future that includes a robust opportunity for cost-effective, renewable-based village power systems. This paper summarizes some of NREL`s recent experiences and lessons learned.

  14. Cleanup of areas contaminated as a result of a nuclear accident

    International Nuclear Information System (INIS)

    In spite of all precautions, the possibility of an accident at a nuclear power plant which would result in the release of unacceptable amounts of radioactive material and cause serious contamination of surrounding areas cannot be excluded. One protective measure which may be required during the intermediate and late phases of an accident is the cleanup of contaminated areas. The term cleanup includes decontamination, stabilization or isolation of the contamination, along with the transport and disposal of the wastes arising form cleanup. If the Emergency Director decides to implement cleanup after a serious accident, all reasonable means should be used to minimize the huge costs and the detriment to humans. To ensure that the cleanup can be quickly and efficiently carried out requires good preliminary planning, clear strategies, a good managerial team, well trained workers and suitable equipment. To assist Member States in the development of their emergency preparedness plans for cleanup, the IAEA is preparing publications which provide an integrated overview of the overall operational planning for cleanup, methods and equipment to carry out these actions and the means to transport safely and dispose of the large volumes of waste. The paper provides an overview of the information in those reports. (author). 27 refs, 2 figs, 2 tabs

  15. Facility decontamination technology workshop

    Energy Technology Data Exchange (ETDEWEB)

    None

    1980-10-01

    Purpose of the meeting was to provide a record of experience at nuclear facilities, other than TMI-2, of events and incidents which have required decontamination and dose reduction activities, and to furnish GPU and others involved in the TMI-2 cleanup with the results of that decontamination and dose reduction technology. Separate abstracts were prepared for 24 of the 25 papers; the remaining paper had been previously abstracted. (DLC)

  16. Identifying and Addressing Lessons Learned from Plant Modification Programs

    International Nuclear Information System (INIS)

    Utilities are Modifying Plant Systems and Control Rooms. This has Impacts on Human Factors and on facility personnel. NRC has been studying plant modification and modernization programs to identify safety significant human performance impacts on facility personnel. In addition to human performance impacts, other consistent observations emerged which are summarized in 10 lessons learned divided into two categories: A - Impact on Individual and Team Performance (1. Impact of modifications on personnel performance is not always obvious, 2. Plant personnel come to favor new technology, but may not at first, 3. Even new technology can be poorly designed from a human factors standpoint, 4. New technology has unanticipated consequences, 5.Personnel do not use HSIs in the way designers expect). B - Organizational and Programmatic Considerations (7. Knowledge gaps early in a modification project can be problematic, 7. Involvement of plant personnel increases over time and is usually more than what is expected, 8. End-point vision is often not achieved, 9. Computer-based systems may change staffing, training, and procedure requirements, 10. Coordination of plant modification with training and operational requirements is difficult). Lesson have implications for both plant safety and production missions. Learning the lessons and how to address them can ensure that the benefits of plant modifications are achieved. Characteristics of Effective Human Factors Engineering Programs: - Human factors program should be follow a top-down model; - Human factors should be considered a life-cycle process; - A graded approach should be used. The US NRC design review process reflects these characteristics: - Review process is designed to correlate with and track the design process; - Flexible, graded, risk-informed application. The addressing lessons are: - Impact of modifications on personnel performance is not always obvious; - Plant personnel come to favor new technology, but may not at

  17. Involving stakeholders in evaluating environmental restoration technologies

    International Nuclear Information System (INIS)

    Involving citizens, interest groups, and regulators in environmental restoration and waste management programs is a challenge for government agencies and the organizations that support them. To be effective, such involvement activities must identify all individuals and groups who have a stake in the cleanup. Their participation must be early, substantive, and meaningful. Stockholders must be able to see how their input was considered and used, and feel that a good- faith effort was made to reconcile conflicting objectives. The Integrated Demonstration for Cleanup of Volatile Organic Compounds at Arid Sites (VOC-Arid ID) is a Department of Energy Office of Technology Development project located at Hanford. Along with technical evaluation of innovative cleanup technologies, the program is conducting an institutional assessment of regulatory and public acceptance of new technologies. Through a series of interviews and workshops, and use of a computerized information management tool, stakeholders are having a voice in the evaluation. Public and regulatory reaction has been positive

  18. The lesson of Goiania

    International Nuclear Information System (INIS)

    A cesium-137 source used for radiological treatment was left unattended in a private clinic in the city of Goiania in Brazil. On 13 September 1987, the capsule containing the radioactive material was brought to a junk yard and violated, and its content was unintentionally handled by many people. In 1987 the intensity of the source was 50 · 1012 Bq. Four people died and several hundred injured people were treated clinically or monitored. The lessons learned from this accident are evaluated. (R.P.)

  19. Lessons from Mayan Astronomy

    CERN Document Server

    Loeb, Abraham

    2016-01-01

    The Mayan culture collected exquisite astronomical data for over a millennium. However, it failed to come up with the breakthrough ideas of modern astronomy because the data was analyzed within a mythological culture of astrology that rested upon false but mathematically sophisticated theories about the Universe. Have we learned the necessary lessons to prevent our current scientific culture from resembling Mayan Astronomy? Clearly, data collection by itself is not a guarantee for good science as commonly assumed by funding agencies. A vibrant scientific culture should cultivate multiple approaches to analyzing existing data and to collecting new data.

  20. French Lessons A Memoir

    CERN Document Server

    Kaplan, Alice

    2009-01-01

    Brilliantly uniting the personal and the critical, French Lessons is a powerful autobiographical experiment. It tells the story of an American woman escaping into the French language and of a scholar and teacher coming to grips with her history of learning. Kaplan begins with a distinctly American quest for an imaginary France of the intelligence. But soon her infatuation with all things French comes up against the dark, unimagined recesses of French political and cultural life.The daughter of a Jewish lawyer who prosecuted Nazi war criminals at Nuremburg, Kaplan grew up in the 1960s in the Mi

  1. Financial Lessons Learned

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    @@ As the Wall Street chaos of 2008 swept the globe,China-with little exposure to subprime mortgages-was one of the only calm ports in the growing financial storm.Ifone lesson can be learned from the crisis,it is this: maintain a constant state of financial vigilance against risks even in boom times.China now faces the task of ensuring its financial health as it further opens to the world amid a global financial landscape reshaped by deep recessions.Economists and finance professors discussed these challenges at the Asia-Pacific Economic and Financial Forum recently held in Beijing.Edited excerpts follow:

  2. Financial Lessons Learned

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    As the Wall Street chaos of 2008 swept the globe,China-with little exposure to subprime mortgages-was one of the only calm ports in the growing financial storm.If one lesson can be learned from the crisis,it is this: maintain a constant state of financial vigilance against risks even in boom times.China now faces the task of ensuring its financial health as it further opens to the world amid a global financial landscape reshaped by deep recessions.Economists and finance professors discussed these challenges at the Asia-Pacific Economic and Financial Forum recently held in Beijing.Edited excerpts follow

  3. Lessons learned in managing ICT systems for online learning

    OpenAIRE

    Liyanage, Lalith; Pasqual, Ajith; WRIGHT, CLAYTON

    2010-01-01

    This paper discusses the challenges faced and lessons learned during the management of an online educational network in Sri Lanka. In all aspects of learning, technology can make a significant impact. Technology, when used appropriately, can be very effective in terms of interactivity among learners, between learners and the content and between learners and teachers, especially in contrast to print-based traditional distance education. Most difficulties that arise are due to constraints of sc...

  4. Semi-Volatile and Particulate Polycyclic Aromatic Hydrocarbons inEnvironmental Tobacco Smoke: Cleanup, Speciation and EmissionsFactors

    Energy Technology Data Exchange (ETDEWEB)

    Gundel, L.A.; Mahanama, K.R.R.; Daisey, J.M.

    1995-02-01

    Studies of phase distributions and emission factors for polycyclic aromatic hydrocarbons (PAH) in environmental tobacco smoke (ETS) require collection and analysis of very small samples. To achieve the necessary selectivity and sensitivity, a method has been devised and tested for extraction and cleanup of gas- and particulate-phase ETS samples. Gas-phase species were trapped by polymeric sorbents, and particles were trapped on filters. The samples were extracted with hot cyclohexane, concentrated and passed through silica solid-phase extraction columns for cleanup. After solvent change, the PAH were determined by high performance liquid chromatography with two programmed fluorescence detectors. PAH concentrations in 15-mg aliquots of National Institute of Standards and Technology Standard Reference Material SRM 1649 (Urban DustIOrganics) agreed well with published values. Relative precision at the 95% confidence level was 8% for SRM 1649 and 20% for replicate samples (5 mg) of ETS particles. Emission factors have been measured for a range of gas- and particulate-phase polycyclic aromatic hydrocarbons in ETS. The emission factors per cigarette were 13.0{+-}0.5 mg particulate matter, 11.2{+-}0.9 pg for gas-phase naphthalene and 74{+-}10 {micro}g for particulate benzo(a)pyrene.

  5. Classroom Management and Lesson Planning(4)

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    @@ Lesson Planning Task 1 As teachers,we all need to plan our lessons before we teach.Make a list of things that you think need to be included in a lesson plan.Then compare and discuss your list with another teacher.Also think about reasons why we need to plan our lessons.

  6. Depleted uranium in the air during the cleanup operations at Cape Arza

    Directory of Open Access Journals (Sweden)

    PERKO VUKOTIC

    2004-12-01

    Full Text Available Cape Arza was contaminated with depleted uranium (DU in the air strikes of NATO aeroplanes on May 30, 1999. The cleanup and decontamination of the site started in 2001. Here the results of air monitoring performed during the cleanup operations in Spring 2002. are presented. The collected air samples were analyzed by high-resolution alpha spectrometry. The obtained concentrations of airborne uranium are about ten times higher than the average value usually reported for air. The ratio of the 234U/238U activities indicates the presence of depleted uranium in the air during the cleanup action, due to resuspension and soil disturbance in the contaminated teritory.

  7. Influences of Multimedia Lesson Contents On Effective Learning

    Directory of Open Access Journals (Sweden)

    Tuncay Yavuz Ozdemir

    2013-11-01

    Full Text Available In the information era that we experience today, there is a rapid change in the methods, techniques and materials used for education and teaching. The usage of information and communication technology-assisted teaching materials are becoming more commonplace. Parallel to these developments, the Ministry of National Education took steps to develop IT substructures of all schools in the country and implemented many projects. The purpose of this study is to determine whether or not the multimedia lesson content used by teachers affect effective learning. This study is a qualitative study, conducted with 45 teachers working in primary schools during the 2011-2012 academic year. According to the study findings, participants believe that using multimedia lesson content during lectures increases student motivation, makes students more curious and interested, and think that using multimedia lesson content has positive effects.

  8. Oakland Operations Office, Oakland, California: Technology summary

    Energy Technology Data Exchange (ETDEWEB)

    1994-11-01

    DOE`s Office of Technology Development manages an aggressive national program for applied research, development, demonstration, testing, and evaluation. This program develops high, payoff technologies to clean up the inventory of DOE nuclear component manufacturing sites and to manage DOE-generated waste faster, safer, and cheaper than current environmental cleanup technologies. OTD programs are designed to make new, innovative, and more effective technologies available for transfer to users through progressive development. Projects are demonstrated, tested, and evaluated to produce solutions to current problems. Transition of technologies into more advanced stages of development is based upon technological, regulatory, economic, and institutional criteria. New technologies are made available for use in eliminating radioactive, hazardous, and other wastes in compliance with regulatory mandates. The primary goal is to protect human health and prevent further contamination. OTD technologies address three specific problem areas: (1) groundwater and soils cleanup; (2) waste retrieval and processing; and (3) pollution prevention.

  9. Oakland Operations Office, Oakland, California: Technology summary

    International Nuclear Information System (INIS)

    DOE's Office of Technology Development manages an aggressive national program for applied research, development, demonstration, testing, and evaluation. This program develops high, payoff technologies to clean up the inventory of DOE nuclear component manufacturing sites and to manage DOE-generated waste faster, safer, and cheaper than current environmental cleanup technologies. OTD programs are designed to make new, innovative, and more effective technologies available for transfer to users through progressive development. Projects are demonstrated, tested, and evaluated to produce solutions to current problems. Transition of technologies into more advanced stages of development is based upon technological, regulatory, economic, and institutional criteria. New technologies are made available for use in eliminating radioactive, hazardous, and other wastes in compliance with regulatory mandates. The primary goal is to protect human health and prevent further contamination. OTD technologies address three specific problem areas: (1) groundwater and soils cleanup; (2) waste retrieval and processing; and (3) pollution prevention

  10. The Effects of Activity and Gain Based Virtual Material on Student's Success, Permanency and Attitudes towards Science Lesson

    Science.gov (United States)

    Tas, Erol

    2015-01-01

    The main objective of this study is to research the effects of a student gains and activity based virtual material on students' success, permanence and attitudes towards science lesson, developed for science and technology lesson 6th grade "Systems in our body" unit. The study, which had a quasi-experimental design, was conducted with…

  11. AN EVALUATION MODEL FOR PRIMARY VISUAL ARTS LESSON

    Directory of Open Access Journals (Sweden)

    Yüksel GÖĞEBAKAN

    2012-06-01

    Full Text Available This study was done to determine the evaluation criteria to be used in a clay tablet production activity in visual arts lesson. In the study, the gains within the learning domains of museum awareness and formation in visual arts as specified in primary visual arts lesson curriculum were associated with the common gains specified within Science, Technology and Society learning domain. The study was conducted on 64 students selected randomly from among the 7th graders in Atatürk Primary School in Malatya province. As a part of the study, a trip to the Malatya Archeology Museum was arranged as required by the lesson plan prepared in line with the common gains of both lessons. Several activities were performed during this trip. One of the activities was a genuine tablet production activity based on a tablet in the museum. The main purpose of the present study is to decide what criteria to use to evaluate the tablets produced by the students in the visual arts lesson.

  12. Cleanup of buried depleted uranium from Trench 1 at Rocky Flats

    International Nuclear Information System (INIS)

    The accelerated action to remove the depleted uranium chips and associated soils and wastes was conducted in the summer of 1998 at the Rocky Flats Environmental Technology Site at Trench 1. Extensive and rigorous planning, which included following the principles of the Integrated Safety Management System and enhanced work planning, was carried out to ensure that the remedial action was conducted safely. This approach relied predominantly on the involvement of workers, technical support groups and the project staff. Feedback throughout the project and incorporation of lessons learned were also essential in resolving issues in an effective and efficient manner. Because of the high levels of volatile organic compounds and polychlorinated biphenyls found in the drums of depleted uranium wastes, the material could not be shipped to the treatment subcontractor for recycling as originally planned. (author)

  13. Experience Gained and Lessons Learned during the BA3 Fire Repair and Cleanup May-July 1997

    CERN Document Server

    Robin, G

    1998-01-01

    The paper presents an overview of the recovery from the fire which took place in BA3 on 13th May 1997. Brief outlines are given of the material damage sustained, the pollution encountered, and the cleaning processes employed. Repairs and cleaning of the building and equipment took over 2 months to complete at a cost in excess of 10 MCHF. The SPS physics program was interrupted for a period of 10 weeks and the LEP start-up was delayed for 6 weeks. The experience gained by the co-ordination team is discussed and advice which may be useful for future reference is included.

  14. Robotics crosscutting program: Technology summary

    International Nuclear Information System (INIS)

    The Office of Environmental Management (EM) is responsible for cleaning up the legacy of radioactive and chemically hazardous waste at contaminated sites and facilities throughout the U.S. Department of Energy (DOE) nuclear weapons complex, preventing further environmental contamination, and instituting responsible environmental management. Initial efforts to achieve this mission resulted in the establishment of environmental restoration and waste management programs. However, as EM began to execute its responsibilities, decision makers became aware that the complexity and magnitude of this mission could not be achieved efficiently, affordably, safely, or reasonably with existing technology. Once the need for advanced cleanup technologies became evident, EM established an aggressive, innovative program of applied research and technology development. The Office of Technology Development (OTD) was established in November 1989 to advance new and improved environmental restoration and waste management technologies that would reduce risks to workers, the public, and the environment; reduce cleanup costs; and devise methods to correct cleanup problems that currently have no solutions. In 1996, OTD added two new responsibilities - management of a Congressionally mandated environmental science program and development of risk policy, requirements, and guidance. OTD was renamed the Office of Science and Technology (OST). This documents presents information concerning robotics tank waste retrieval overview, robotic chemical analysis automation, robotics decontamination and dismantlement, and robotics crosscutting and advanced technology

  15. Robotics crosscutting program: Technology summary

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-08-01

    The Office of Environmental Management (EM) is responsible for cleaning up the legacy of radioactive and chemically hazardous waste at contaminated sites and facilities throughout the U.S. Department of Energy (DOE) nuclear weapons complex, preventing further environmental contamination, and instituting responsible environmental management. Initial efforts to achieve this mission resulted in the establishment of environmental restoration and waste management programs. However, as EM began to execute its responsibilities, decision makers became aware that the complexity and magnitude of this mission could not be achieved efficiently, affordably, safely, or reasonably with existing technology. Once the need for advanced cleanup technologies became evident, EM established an aggressive, innovative program of applied research and technology development. The Office of Technology Development (OTD) was established in November 1989 to advance new and improved environmental restoration and waste management technologies that would reduce risks to workers, the public, and the environment; reduce cleanup costs; and devise methods to correct cleanup problems that currently have no solutions. In 1996, OTD added two new responsibilities - management of a Congressionally mandated environmental science program and development of risk policy, requirements, and guidance. OTD was renamed the Office of Science and Technology (OST). This documents presents information concerning robotics tank waste retrieval overview, robotic chemical analysis automation, robotics decontamination and dismantlement, and robotics crosscutting and advanced technology.

  16. Chicago Operations Office: Technology summary

    International Nuclear Information System (INIS)

    This document has been prepared by the Department of Energy's (DOE) Environmental Management (EM) Office of Technology Development (OTD) to highlight its research, development, demonstration, testing, and evaluation (RDDT and E) activities funded through the Chicago Operations Office. Technologies and processes described have the potential to enhance DOE's cleanup and waste management efforts, as well as improve US Industry's competitiveness in global environmental markets. The information has been assembled from recently produced OTD documents which highlight technology development activities within each of the OTD program elements. OTD technologies addresses three specific problem areas: (1) groundwater and soils cleanup; (2) waste retrieval and processing; and (3) pollution prevention. These problems are not unique to DOE, but are associated with other Federal agency and industry sites as well. Thus, technical solutions developed within OTD programs will benefit DOE, and should have direct applications in outside markets

  17. Chicago Operations Office: Technology summary

    Energy Technology Data Exchange (ETDEWEB)

    1994-12-01

    This document has been prepared by the Department of Energy`s (DOE) Environmental Management (EM) Office of Technology Development (OTD) to highlight its research, development, demonstration, testing, and evaluation (RDDT and E) activities funded through the Chicago Operations Office. Technologies and processes described have the potential to enhance DOE`s cleanup and waste management efforts, as well as improve US Industry`s competitiveness in global environmental markets. The information has been assembled from recently produced OTD documents which highlight technology development activities within each of the OTD program elements. OTD technologies addresses three specific problem areas: (1) groundwater and soils cleanup; (2) waste retrieval and processing; and (3) pollution prevention. These problems are not unique to DOE, but are associated with other Federal agency and industry sites as well. Thus, technical solutions developed within OTD programs will benefit DOE, and should have direct applications in outside markets.

  18. From Cleanup to Stewardship. A companion report to Accelerating Cleanup: Paths to Closure and background information to support the scoping process required for the 1998 PEIS Settlement Study

    Energy Technology Data Exchange (ETDEWEB)

    None

    1999-10-01

    Long-term stewardship is expected to be needed at more than 100 DOE sites after DOE's Environmental Management program completes disposal, stabilization, and restoration operations to address waste and contamination resulting from nuclear research and nuclear weapons production conducted over the past 50 years. From Cleanup to stewardship provides background information on the Department of Energy (DOE) long-term stewardship obligations and activities. This document begins to examine the transition from cleanup to long-term stewardship, and it fulfills the Secretary's commitment to the President in the 1999 Performance Agreement to provide a companion report to the Department's Accelerating Cleanup: Paths to Closure report. It also provides background information to support the scoping process required for a study on long-term stewardship required by a 1998 Settlement Agreement.

  19. Training for New Manufacturing Technologies.

    Science.gov (United States)

    Jacobs, James

    1988-01-01

    Examines the effects of computer-based manufacturing technologies on employment opportunities and job skills. Describes the establishment of the Industrial Technology Institute in Michigan to develop and utilize advanced manufacturing technologies, and the institute's relationship to the state's community colleges. Reviews lessons learned from…

  20. Some statistical aspects of the cleanup of Enewetak Atoll

    International Nuclear Information System (INIS)

    Cleaning up the radionuclide contamination at Enewetak Atoll has involved a number of statistical design problems. Theoretical considerations led to choosing a grid sampling pattern; practical problems sometimes lead to resampling on a finer grid. Other problems associated with using grids have been both physical and statistical. The standard sampling system is an in situ intrinsic gamma detector which measures americium concentration. The cleanup guidelines include plutonium concentration, so additional sampling of soil is required to establish Pu/Am ratios. The soil sampling design included both guidelines for location of the samples and also a special pattern of subsamples making up composite samples. The large variance of the soil, sample results makes comparison between the two types difficult anyway, but this is compounded by vegetation attenuation of the in situ readings, soil disturbance influences, and differences in devegetation methods. The constraints inherent in doing what amounts to a research and development project, on a limited budget of time and money, in a field engineering environment are also considered