The Experts below are selected from a list of 157644 Experts worldwide ranked by ideXlab platform
Caroline J. Fowler - One of the best experts on this subject based on the ideXlab platform.
-
Strengthening State Health Department Injury and Violence Prevention Programs a look at a decade of State Technical Assessment Team Visits
Injury Prevention, 2010Co-Authors: Linda Scarpetta, Amber Williams, Ellen Schmidt, Caroline J. FowlerAbstract:In 2000, the Safe States Alliance (formerly the State and Territorial Injury Prevention Directors Association (STIPDA)) began the State Technical Assessment Team (STAT) Program to support the development, implementation and evaluation of injury and violence prevention efforts at shoulder dystocia (SHD) by conducting an on-site, point-in-time Assessment of the injury prevention program with recommendations for improvement. To date, the Safe States Alliance has conducted 30 visits. The STAT Program focuses on five core components representing the current understanding about creating and sustaining effective state health department injury and violence prevention programs. Standards and indicators for each core component describe the conditions that should exist within an ideal SHD injury and violence prevention program. Findings suggest that the STAT process is rewarding and valuable for both the visited injury programs and the Assessment team including raising the visibility of injury as a public health problem within the health department, validating positive existing efforts, bringing attention to critical issues, and providing the impetus for strategic planning. State injury prevention directors also credit STAT with positive outcomes for their programs such as: new staff positions, enhanced support from state level policy-makers; the formation or strengthening of community coalitions; access to new funding sources; and stronger grant applications for core capacity funding. Additionally, the Safe States Alliance will share findings from formative, process and impact evaluations as well as trends in recommendations given to states over 10 years of implementation and next steps for program development.
Linda Scarpetta - One of the best experts on this subject based on the ideXlab platform.
-
Strengthening State Health Department Injury and Violence Prevention Programs a look at a decade of State Technical Assessment Team Visits
Injury Prevention, 2010Co-Authors: Linda Scarpetta, Amber Williams, Ellen Schmidt, Caroline J. FowlerAbstract:In 2000, the Safe States Alliance (formerly the State and Territorial Injury Prevention Directors Association (STIPDA)) began the State Technical Assessment Team (STAT) Program to support the development, implementation and evaluation of injury and violence prevention efforts at shoulder dystocia (SHD) by conducting an on-site, point-in-time Assessment of the injury prevention program with recommendations for improvement. To date, the Safe States Alliance has conducted 30 visits. The STAT Program focuses on five core components representing the current understanding about creating and sustaining effective state health department injury and violence prevention programs. Standards and indicators for each core component describe the conditions that should exist within an ideal SHD injury and violence prevention program. Findings suggest that the STAT process is rewarding and valuable for both the visited injury programs and the Assessment team including raising the visibility of injury as a public health problem within the health department, validating positive existing efforts, bringing attention to critical issues, and providing the impetus for strategic planning. State injury prevention directors also credit STAT with positive outcomes for their programs such as: new staff positions, enhanced support from state level policy-makers; the formation or strengthening of community coalitions; access to new funding sources; and stronger grant applications for core capacity funding. Additionally, the Safe States Alliance will share findings from formative, process and impact evaluations as well as trends in recommendations given to states over 10 years of implementation and next steps for program development.
Karl M. Looff - One of the best experts on this subject based on the ideXlab platform.
-
Geologic Technical Assessment of the Stratton Ridge salt dome, Texas, for potential expansion of the U.S. strategic petroleum reserve.
2006Co-Authors: Christopher Arthur Rautman, Anna C. Snider, Karl M. LooffAbstract:The Stratton Ridge salt dome is a large salt diapir located only some ten miles from the currently active Strategic Petroleum Reserve Site at Bryan Mound, Texas. The dome is approximately 15 miles south-southwest of Houston. The Stratton Ridge salt dome has been intensively developed, in the desirable central portions, with caverns for both brine production and product storage. This geologic Technical Assessment indicates that the Stratton Ridge salt dome may be considered a viable, if less-than-desirable, candidate site for potential expansion of the Strategic Petroleum Reserve (SPR). Past development of underground caverns significantly limits the potential options for use by the SPR. The current conceptual design layout of proposed caverns for such an expansion facility is based upon a decades-old model of salt geometry, and it is unacceptable, according to this reinterpretation of salt dome geology. The easternmost set of conceptual caverns are located within a 300-ft buffer zone of a very major boundary shear zone, fault, or other structural feature of indeterminate origin. This structure transects the salt stock and subdivides it into an shallow western part and a deeper eastern part. In places, the distance from this structural boundary to the design-basis caverns is as little asmore » 150 ft. A 300-ft distance from this boundary is likely to be the minimum acceptable stand-off, from both a geologic and a regulatory perspective. Repositioning of the proposed cavern field is possible, as sufficient currently undeveloped salt acreage appears to be available. However, such reconfiguration would be subject to limitations related to land-parcel boundaries and other existing infrastructure and topographic constraints. More broadly speaking, the past history of cavern operations at the Stratton Ridge salt dome indicates that operation of potential SPR expansion caverns at this site may be difficult, and correspondingly expensive. Although detailed information is difficult to come by, widely accepted industry rumors are that numerous existing caverns have experienced major operational problems, including salt falls, sheared casings, and unintended releases of stored product(s). Many of these difficulties may be related to on-going differential movement of individual salt spines or to lateral movement at the caprock-salt interface. The history of operational problems, only some of which appear to be a matter of public record, combined with the potential for encountering escaped product from other operations, renders the Stratton Ridge salt dome a less-than-desirable site for SPR purposes.« less
-
Geologic Technical Assessment of the Richton salt dome, Mississippi, for potential expansion of the U.S. strategic petroleum reserve.
2006Co-Authors: Anna C. Snider, Christopher Arthur Rautman, Karl M. LooffAbstract:Technical Assessment and remodeling of existing data indicates that the Richton salt dome, located in southeastern Mississippi, appears to be a suitable site for expansion of the U.S. Strategic Petroleum Reserve. The maximum area of salt is approximately 7 square miles, at a subsurface elevation of about -2000 ft, near the top of the salt stock. Approximately 5.8 square miles of this appears suitable for cavern development, because of restrictions imposed by modeled shallow salt overhang along several sides of the dome. The detailed geometry of the overhang currently is only poorly understood. However, the large areal extent of the Richton salt mass suggests that significant design flexibility exists for a 160-million-barrel storage facility consisting of 16 ten-million-barrel caverns. The dome itself is prominently elongated from northwest to southeast. The salt stock appears to consist of two major spine features, separated by a likely boundary shear zone trending from southwest to northeast. The dome decreases in areal extent with depth, because of salt flanks that appear to dip inward at 70-80 degrees. Caprock is present at depths as shallow as 274 ft, and the shallowest salt is documented at -425 ft. A large number of existing two-dimensional seismic profiles havemore » been acquired crossing, and in the vicinity of, the Richton salt dome. At least selected seismic profiles should be acquired, examined, potentially reprocessed, and interpreted in an effort to understand the limitations imposed by the apparent salt overhang, should the Richton site be selected for actual expansion of the Reserve.« less
Paul Jagals - One of the best experts on this subject based on the ideXlab platform.
-
Rapid Technical Assessment and troubleshooting of rural water supply systems
Water Distribution Systems Analysis 2008, 2009Co-Authors: J Haarhoff, L C Rietveld, Paul JagalsAbstract:Providing the rural poor with safe drinking water has been a national priority for the South African government since 1994, in line with the internationally embraced millennium development goals. After more than a decade of sustained and significant investment, it is time to address the sustained efficiency of the multitude of rural water supply systems that had been built. This paper reports on a proposed framework for allowing the rapid Assessment of such a small rural water supply system. The framework hinges upon four criteria, namely the availability of a water source in terms of quality as well as quantity; the capacity to distribute the water from the source to the consumer in terms of pump, pipeline and tank sizes; the continuity of the system over time as a measure of distribution reliability; and the condition of the system in terms of diligent maintenance and repair. For each of these criteria, practical indicators had to be identified which can be quantified during a short site visit, requiring a minimum of prior knowledge. With numerical estimates for each of the indicators, the indicators can then be appropriately weighted and combined into a single index for each of the criteria. This paper provides the details of how the index for condition was calculated. The proposed methodology was applied to fifteen small villages in rural Venda to demonstrate its utility. Not only could the systems be rapidly ranked in terms of their relative performance, but the reasons for their non-performance, where applicable, could be pinpointed. Where availability was a problem, the problem was predominantly the drying up of boreholes, with unacceptable water quality encountered in two cases - these defects can only be corrected with substantial engineering input and investment. Capacity was not a serious problem, except for insufficient storage in some cases. The largest problem was the lack of continuity caused by poor operation, arguments about the payment of fuel, and unacceptable repair times for broken equipment - problems that should be easy to correct through better management practices. The condition of the systems, all relatively new, was still good although the taps were generally in poor condition, caused by a combination of installing taps of poor quality in the first place, and a lack of scheduled replacement and rehabilitation. Overall, the proposed methodology offers great promise as a simple, rapid benchmarking tool for water supply authorities responsible for rural water supply systems. Copyright ASCE 2009.
-
a tool for Technical Assessment of rural water supply systems in south africa
Physics and Chemistry of The Earth, 2009Co-Authors: L C Rietveld, J Haarhoff, Paul JagalsAbstract:Water and sanitation services provide a cost-effective solution for alleviating the impact of water-borne diseases. Actually, for water supply projects a top-down approach is followed, giving priority to deliver sufficient quantities of water, increasing its availability by investment in new systems. Little attention is paid to the functioning of these systems on the long-term, and its maintenance and operational constraints. In this paper, a methodology was developed to Technically assess water supply systems based on four criteria, namely availability, capacity, continuity and condition. The practicality of the approach is demonstrated by a Technical Assessment of a number of water supply systems in the Vhembe District in South Africa. The systems consist of piped distribution systems with public standpipes, mostly fed by groundwater. In general, it can be concluded that the performance of the systems, although relatively new, is poor. The availability (criterion 1) of the drinking water is a problem due to poorly constructed boreholes or disagreement on the payment of the operational cost after construction. In most villages the capacity (criterion 2) of the installed infrastructure is sufficient, although storage volume is in some villages too small. The continuity (criterion 3) of the water supply is threatened by disputes about payment of diesel for the pump and maintenance and repair of the pump. Finally, the condition (criterion 4) is poor mostly due to taps at the standpipes which are damaged and require frequent replacement. Despite the simplicity of the proposed Assessment methodology, it provides rapid insight in the state of a system and is ideal for bench marking the performance of different systems in different regions. Furthermore, the quantitative measures of the four different criteria allow system operators and planners to rapidly pinpoint the reasons for poor performance and to take the appropriate corrective action. The used weighting factors in this demonstration are arbitrary – different users could adapt them to their own specific situations without invalidating the overall approach to Technical Assessment suggested in this paper.
Filip Johnsson - One of the best experts on this subject based on the ideXlab platform.
-
Enhancement of CO2 Absorption in Water through pH Control and Carbonic Anhydrase–A Technical Assessment
Industrial & Engineering Chemistry Research, 2019Co-Authors: Johanna Beiron, Fredrik Normann, Lars Kristoferson, Lars Strömberg, Stefanìa Òsk Gardarsdòttir, Filip JohnssonAbstract:This paper provides an industrial-scale Technical Assessment of absorption of CO2 in water to react into bicarbonate (HCO3−), with the goal of storing HCO3− in the oceans as a carbon sequestration technology. A potential advantage of the process is that it will not require a CO2 transport and storage infrastructure that will be expensive for small-scale and remote emission sources. Process simulations are utilized to estimate absorber column length and for mass flow estimations of water and base required for a target capture rate of 90%. The results indicate that the process is Technically feasible under specific conditions, with pH regulation being highly important, although the demand for base represents a limiting factor. Yet, a potential niche for the process is CO2 capture at smaller plants emitting small amounts of CO2.
