LANL Plutonium Assessment

At the Los Alamos National Laboratory (LANL), low level nuclear waste (LLW) is processed for disposal at the Waste Isolation Pilot Plant. This waste is processed in a glovebox and then placed into a 55 gallon drum and sent to a nondestructive assay (NDA) laboratory to determine if the waste within the drum\u27s reactivity is below 100nCi/g stipulated by the regulation held by the Enviromental Protection Agency (EPA). In several cases every year, the reactivity of the drum is exceeded, thus requiring a costly and dangerous procedural deviation to divide the contents of the drum to reach an acceptable level of radioactivity. To avoid this problem, an in-line waste assay system must be developed to measure specifically plutonium-240 but also must give a possibility of measuring other types of radioactive materials such as Uranium-235. This product must have the ability to be applied to gloveboxes globally. This will require that the device has the capability of assaying a fully loaded 55-gallon drum that is inserted into the glovebox through a penetration in the floor of the glovebox before movement to the NDA laboratory. This assay must be completed within an hour, while maintaining an ergonomically efficient design. To satisfy these requirements, the goal was to take a neutron counting system available on the market and develop a mechanized collar to hold these devices while it assays the drum\u27s waste underneath the glovebox. The neutron counter that will be applied to the design is Canberra Industries\u27 model JCC-71,72, and 73 [2] accompanied with the JR-14 shift register [3] and neutron counting software [4]. The main aspect of the design will be the development of a mechanized collar operating underneath the glovebox around the floor penetration to safely assay the waste in 2-3 sections on the drum. This will require the collar to have a vertical drive mechanism, a controls component and the construction of a holding rack for the counting slabs. The design will accompany the 6 He-3 slabs fashioned around the drum with one of the holding positions having the ability to accompany a passive or active slab depending on the application desired. The design will include a minimal amount of areas with hard to clean spaces. This design will accomplish all of the specifications explained above and hope to make the operations at nuclear processing facilities more efficient

Thermal power systems small power systems application project: Siting issues for solar thermal power plants with small community applications

The siting issues associated with small, dispersed solar thermal power plants for utility/small community applications of less than 10 MWe are reported. Some specific requirements are refered to the first engineering experiment for the Small Power Systems Applications (SPSA) Project. The background for the subsequent issue discussions is provided. The SPSA Project and the requirements for the first engineering experiment are described, and the objectives and scope for the report as a whole. A overview of solar thermal technologies and some technology options are discussed

Hiroshima University Research and Technology Guide 2012 Version : Physical Science & Engineering

II Environment/Energy III Design and Manufacturing IV Material/Device V Mechanical Engineering VI Civil Engineering/Architecture VII Computer Science, Information, Communication and System Engineering VIII Measurement & Control/Scientific Analyse

Diagnostic systems in DEMO: engineering design issues

The diagnostic systems of DEMO that are mounted on or near the torus, whether intended for the monitoring and control functions of the engineering aspects or the physics behaviour of the machine, will have to be designed to suit the hostile nuclear environment. This will be necessary not just for their survival and correct functioning but also to satisfy the pertinent regulatory bodies, especially where any of them relate to machine protection or the prevention or mitigation of accidents foreseen in the safety case. This paper aims to indicate the more important of the reactor design considerations that are likely to apply to diagnostics for DEMO, drawn from experience on JET, the provisions in hand for ITER and modelling results for the wall erosion and neutron damage effects in DEMO.Comment: 8 page

Solar photochemical process engineering for production of fuels and chemicals

The engineering costs and performance of a nominal 25,000 scmd (883,000 scfd) photochemical plant to produce dihydrogen from water were studied. Two systems were considered, one based on flat-plate collector/reactors and the other on linear parabolic troughs. Engineering subsystems were specified including the collector/reactor, support hardware, field transport piping, gas compression equipment, and balance-of-plant (BOP) items. Overall plant efficiencies of 10.3 and 11.6% are estimated for the flat-plate and trough systems, respectively, based on assumed solar photochemical efficiencies of 12.9 and 14.6%. Because of the opposing effects of concentration ratio and operating temperature on efficiency, it was concluded that reactor cooling would be necessary with the trough system. Both active and passive cooling methods were considered. Capital costs and energy costs, for both concentrating and non-concentrating systems, were determined and their sensitivity to efficiency and economic parameters were analyzed. The overall plant efficiency is the single most important factor in determining the cost of the fuel

Supervisor Localization of Discrete-Event Systems based on State Tree Structures

Recently we developed supervisor localization, a top-down approach to distributed control of discrete-event systems in the Ramadge-Wonham supervisory control framework. Its essence is the decomposition of monolithic (global) control action into local control strategies for the individual agents. In this paper, we establish a counterpart supervisor localization theory in the framework of State Tree Structures, known to be efficient for control design of very large systems. In the new framework, we introduce the new concepts of local state tracker, local control function, and state-based local-global control equivalence. As before, we prove that the collective localized control behavior is identical to the monolithic optimal (i.e. maximally permissive) and nonblocking controlled behavior. In addition, we propose a new and more efficient localization algorithm which exploits BDD computation. Finally we demonstrate our localization approach on a model for a complex semiconductor manufacturing system

Suffolk University Academic Catalog, New England School of Art and Design (NESAD), 1987-1988

https://dc.suffolk.edu/cassbs-catalogs/1112/thumbnail.jp

LSU General Catalog 1990-1991

The LSU General Catalog describes all undergraduate and graduate departments and programs with degree requirements and courses offered for each one. The General Catalog includes information on registration and financial aid as well as academic services offered to all students

Value Engineering

MAN Truck and Bus AG is a leading international provider of commercial vehicles as well as well-known producers of diesel and natural-gas engines. This report focuses on the products manufactured in MAN Nuremberg assembly plant, which produces a wide variety of engines designed and developed for different applications for customer needs. As any other company in the industry, MAN has high expenses while producing their engines. In response for this need, the PKO+ project was born. This project follows the VE ideology of improving the value of the goods or products by reducing the cost of the raw material, seeking of low cost suppliers, optimizing the product with or without customer perception, supply chain optimization, etc. VE techniques have been applied to coordinate properly the communication between the different departments involved in this project. The basics of this project and the starting process can be found in this report. These foundations consist of generating a support team, establishing long term targets, and processes to achieve such targets. At the end, the results from period January 1st 2019 to August 1st 2019 are shown in this report

LSU General Catalog 1991-1992

The LSU General Catalog describes all undergraduate and graduate departments and programs with degree requirements and courses offered for each one. The General Catalog includes information on registration and financial aid as well as academic services offered to all students