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The Division of Beaches and Shores contracted the services of the University of Florida, Department of Recreation, Parks and Tourism to inventory and map all public owned properties which front the Atlantic Ocean, Straits of Flori...
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The Division of Beaches and Shores contracted the services of the University of Florida, Department of Recreation, Parks and Tourism to inventory and map all public owned properties which front the Atlantic Ocean, Straits of Florida, and Gulf of Mexico, and to survey local access providers to determine their perceived access needs.
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The access designs are a specific attempt to incorporate and promote the policies and recommendations in the Access Plan. Two design alternatives are presented. The first is a larger structure intended for high use areas and inclu...
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The access designs are a specific attempt to incorporate and promote the policies and recommendations in the Access Plan. Two design alternatives are presented. The first is a larger structure intended for high use areas and includes specific accommodations for the handicapped such as appropriate width and slopes of ramps as well as a shaded platform in proximity to the beach. The second design is a smaller version for use of moderate use access points.
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This research report describes the first year activities and preliminary findings of a two-year research study to investigate the impacts of access management treatments. The first objective of the research is to estimate the impa...
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This research report describes the first year activities and preliminary findings of a two-year research study to investigate the impacts of access management treatments. The first objective of the research is to estimate the impacts of access management techniques through field data collection at selected sites in Texas and to perform simulation of traffic performance. Preliminary findings of one such case study are provided in this report. Further case studies will be investigated in the second year of this research. Simulation will also be performed in the second year of this research on theoretical scenarios. The theoretical scenarios are intended to assist TxDOT in alternatives analysis. Two additional case study locations will also be simulated in the second year of the study. The second objective of the research is to estimate the safety benefits of access management treatments by investigating crash data from select corridors where access management treatments have been installed. A key part of this analysis is the assessment of the crash information used in the analysis. This report includes preliminary analysis of crash analysis from one case study corridor, and researchers anticipate investigation of at least four additional case study locations in the second year of the research study.
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The design of a 64-word by 64-bit dynamic RAM is described. The RAM cell is implemented as a four-transistor dynamic cell. Sense amplifiers are used to reduce access time. Bootstrapped logic reduces power dissipation. Experimental...
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The design of a 64-word by 64-bit dynamic RAM is described. The RAM cell is implemented as a four-transistor dynamic cell. Sense amplifiers are used to reduce access time. Bootstrapped logic reduces power dissipation. Experimental results indicate a typical cycle time of 160ns and power dissipation of 160nW. (JHD)
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The state of California continues to be in the forefront of implementing alternative fuels for transportation applications. Aggressive efforts to deploy alternative fuel vehicles (AFVs) in California have highlighted the need to p...
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The state of California continues to be in the forefront of implementing alternative fuels for transportation applications. Aggressive efforts to deploy alternative fuel vehicles (AFVs) in California have highlighted the need to provide adequate fueling stations and develop appropriate, user-friendly means to purchase fuel at the pump. Since these fuels are not typically provided by petroleum companies at conventional fueling stations, and acceptance of cash is often not an option, a payment method must be developed that is consistent with the way individual AFV operators are accustomed to purchasing automotive fuels- with a credit card. At the same time, large fleets like the California Department of General Services must be able to use a single fuel card that offers comprehensive fleet management services. The Gas Technology Institute's Infrastructure Working Group (IWG) and its stakeholders have identified the lack of a common card reader system as a hurdle to wider deployment of AFVs in California and the United States. In conjunction with the U.S. Department of Energy's (DOE) National Clean Cities Program, the IWG has outlined a multi-phased strategy to systematically address the barriers to develop a more 'open' architecture that's similar to the way gasoline and diesel are currently dispensed. Under the auspices of the IWG, survey results were gathered (circa 1999) from certain fuel providers, as a means to more carefully study card reader issues and their potential solutions. Pilot programs featuring card reader systems capable of accepting wider payment options have been attempted in several regions of the United States with mixed success.
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This project involves the construction of two concrete step ramps with pipe handrails from the seawall to the state-owned beach. The step ramps will be an addition to the seawall. No additional facilities will be required as a res...
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This project involves the construction of two concrete step ramps with pipe handrails from the seawall to the state-owned beach. The step ramps will be an addition to the seawall. No additional facilities will be required as a result of the construction, and no additional land needs to be acquired. The purpose of constructing the step ramps is to provide safe access to the beach. Presently, access to the beach is limited to six ladders over the 3 mile long seawall or down the rip-rap adjacent to the seawalls. It is foreseeable that someone may be seriously injured if this practice continues.
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It has been demonstrated that coding can play a major role in multiple-access satellite communication systems. In addition to providing error-control capability as in single-user communication systems, coding actually provides the...
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It has been demonstrated that coding can play a major role in multiple-access satellite communication systems. In addition to providing error-control capability as in single-user communication systems, coding actually provides the multiple-access capability in many multi-user systems. The subject of this report is the use of coding techniques in a multiple-access satellite communication system in which the communication capacity is to be shared by several asynchronous radio-frequency signals that occupy the same bandwidth. However, most of the concepts and techniques discussed in the paper apply to a wide variety of multiple-access communication systems in addition to satellite systems. results applicable to multiple-access communication systems from the fields of information theory, algebraic coding theory, and communication theory are presented along with a discussion of important mathematical models of multiple-access satellite systems and practical considerations and constraints in the design of such systems. Analytical results on the performance of phase-coded spread-spectrum multiple-access systems are obtained and some new multiple-access communication schemes for a satellite link in a computer-communication network are discussed. (Author)
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The random accessing problem for packet radio networks is considered. The contention resolving tree algorithm of Capetanakis is applied to a model in which packets are transmitted by terminals and received by repeaters, with the p...
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The random accessing problem for packet radio networks is considered. The contention resolving tree algorithm of Capetanakis is applied to a model in which packets are transmitted by terminals and received by repeaters, with the possibility of geometries in which more than one repeater hears a single terminal. It is shown that naive applications of the tree algorithm of this multiple-coupled random access problem lead to algorithms which deadlock. A deadlock-free algorithm, restricted-entry algorithm for the multiple-coupled random access problem, is developed. The deadlock-free property is proved. An algorithm describing how new terminals join the network is presented. (Author)
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Conceptually, this paper discusses strategies of digital satellite communication networks for a very large number of low density traffic stations. These stations can be either aeronautical, land mobile, or maritime. The techniques...
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Conceptually, this paper discusses strategies of digital satellite communication networks for a very large number of low density traffic stations. These stations can be either aeronautical, land mobile, or maritime. The techniques can be applied to international, domestic, regional, and special purpose satellite networks. The applications can be commercial, scientific, military, emergency, navigational or educational. The key strategy is the use of a non-orthogonal access method, which tolerates overlapping signals. With n being either time or frequency partitions, and with a single overlapping signal allowed, a low cost mobile satellite system can be designed with n squared (n squared n 1) number of terminals.
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In response to issues focusing on rural health and decision making for seeking care, this study was structured to: (1) determine an adequate base of knowledge that depicts patterns of health care access characteristics for a rural...
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In response to issues focusing on rural health and decision making for seeking care, this study was structured to: (1) determine an adequate base of knowledge that depicts patterns of health care access characteristics for a rural Alabama area; and (2) to provide insight into the utilization and access patterns of the emergency room at the John A. Andrew Memorial Hospital. The study objectives were: (1) to establish a functional profile of the structurally and procedurally static emergency subsystem; (2) to measure the impact on this emergency subsystem of the introduction of an alternative primary care system; and (3) to measure and evaluate resultant changes in relation to system costs, patient costs, patient utilization, quality of care provided and implications for system restructuring. The examination of the Emergency Room (ER) profile acquired in this exploratory study indicates that additional measures are needed to improve the integrity and relevancy of ER data in order for it to have utility in the more comprehensive study. By exploring the nature and quality of existing ER information, the development of a research design was addressed that prospectively took into consideration the utilization experience of the ER as compared with the utilization of the primary health care system, with additional determinations being made regarding the reasons for any changes from the client's perspective. The earlier the intervention point along the spectrum and the greater the effectiveness, the less will be the demand for emergency care and rehabilitation services upon the medical and hospital practice system.
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