...identification policy, which capitalizes on leading practices and embraces open standards, DoD can� (a) Achieve lower life-cycle cost of item management and improve life-cycle property management; (b) Improve operational readiness;...

addressing a number of strategies to achieve this objective that will also improve fuel efficiency, including research on new engines, enhanced engine cycles, more efficient...

In the present work, lysine production by Corynebacterium glutamicum was improved by metabolic engineering of the tricarboxylic acid (TCA) cycle. The 70% decreased activity of isocitrate dehydrogenase, achieved by start codon exchange, resulted in a >40% improved lysine production. By flux analysis, this could ...

Battery storage is a crucial element in alternative energy and electric vehicle systems. Three battery storage configurations; a conventional, a parallel, and a dual, were analyzed for both shallow cycle and deep cycle lead acid batteries to determine if capacity improvement is achievable. Daily profiles for the ...

This study addresses the problem of finding an energy conversion method to take advantage of the high maximum cycle temperatures achieved with solar central receivers. Most current practice is to use steam-based heat engines with solar receivers but these...

The steps taken to achieve improved bearing life in the organic Rankine cycle (ORC) engine being developed for use on solar parabolic dishes are presented. A summary of test results is given. Dynamic tests on the machine shaft and rotors of the ORC engine are also discussed.

The 8V-71 TAE engine was developed to provide improved fuel economy and reduced emissions. The effects of turbocharger-blower matching, air charge cooling, and combustion system design changes are presented. Steady state smoke reductions achieved through improved air utilization are compared with improvements in ...

Calorimetric testing of a Glauber's salt phase change material has been performed as a function of thermal cycling. The material, thickened with attapulgite clay, shows a decline in its thermal energy storage capacity with cycling. Possible mechanisms for the decline are hypothesized and tested. It is shown that a significant increase in the energy storage ...

A major impediment in improvement of channel catfish by selective breeding is that a high percent of fish do not spawn until the third year. If the generation time could be shortened, genetic improvement could be achieved at a faster rate. The conditions that lead to sexual maturation in fish have...

The goals in Reclamation are to achieve the high degree of knowledge and proficiency needed to: Improve techniques for more efficient water management, conservation, salvage, and reuse throughout the hydrologic cycle; Improve the reliability and efficienc...

Substantial improvements in thermal efficiency coupled with low pollutant emissions levels would greatly benefit the utility power industry, independent power producers, and industrial cogenerators, as well as the natural gas industry. Preliminary conceptual analyses of advanced gas turbine power cycles suggest that significant ...

The Heat Cycle Research Program being conducted for DOE has as its objective the development of technology to improve the utilization of moderate temperature geothermal resources. The program hopes to improve the performance of geothermal binary cycles to levels approaching the practicable thermodynamic maximum. ...

The Heat Cycle Research Program is currently investigating the potential improvements to power cycles utilizing moderate temperature geothermal resources to produce electrical power. Investigations have specifically examined Rankine cycle binary power systems. Binary Rankine cycles are more ...

Turbine cooling is the breakthrough technology for gas turbine engines and although the turbine engine and cooling are considered mature technologies, to date they have only achieved about 60 to 70% of the cycle advantage available. Moreover, great improv...

The technical performance means how well a system achieves the performance requirements appointed to it in different operational circumstances. The operation of the system can be improved during its whole life-cycle by monitoring the performance factors. ...

Significant progress has been made improving ferro-fluid seals with 64 and 40 million cycles achieved on motor shaft seals and actuation arm seals. Assembly of lubricant filled convertors to begin using these seals. Seal tests conducted with new seal test...

This report presents the results of a study which evaluates the application of an innovative once-through steam generator to a utility combined cycle. The extensive development and field experience with this concept in a small industrial combined cycle is detailed. Initial field tests in the first year of operation show an availability of 99.6%. High ...

Silicon is a promising candidate for the anode material in lithium-ion batteries due to its high theoretical specific capacity. However, volume changes during cycling cause pulverization and capacity fade, and improving cycle life is a major research challenge. Here, we report a novel interconnected Si hollow nanosphere electrode that ...

A power cycle generates electricity from the heat of combustion of fossil fuels. Its efficiency is governed by the cycle configuration, the operating parameters, and the working fluid. Typical. designs use pure water as the fluid. in the last two decades, hybrid cycles based on ammonia-water, and carbon-dioxide mixtures as the working ...

The performance of binary geothermal power plants can be improved through the proper choice of a working fluid, and optimization of component designs and operating conditions. This paper reviews the investigations at the Idaho National Engineering Laboratory (INEL) which are examining binary cycle performance improvements for moderate ...

The Heat Cycle Research Program, which is conducted for the Department of Energy, has as its objective the development of the technology for effecting the improved utilization of moderate temperature geothermal resources. The current testing involves the investigation of binary power cycle performance utilizing mixtures of non-adjacent ...

This study addresses the problem of finding an energy-conversion method to take advantage of the high-maximum cycle temperatures achieved with solar central receivers. Most current practice is to use steam-based heat engines with solar receivers but these Rankine cycles cannot operate at the higher possible temperatures. Derivatives of ...

This study addresses the problem of finding an energy conversion method to take advantage of the high maximum cycle temperatures achieved with solar central receivers. Most current practice is to use steam-based heat engines with solar receivers but these Rankine cycles cannot operate at the higher possible temperatures. Derivatives of ...

Fuel cycle scenario analysis codes are valuable tools for investigating the effects of various decisions on the performance of the nuclear fuel cycle as a whole. Until recently, repository metrics in such codes were based on mass and were independent of the isotopic composition of the waste. A methodology has been developed for determining peak repository ...

Major progress has been achieved in the lead-acid , nickel/iron and nickel/zinc battery technology development since the initiation of the Near-Term eV Battery Project in 1978. Against the specific energy goal of 56 wh/kg the demonstrated specific energies are 41 wh/kg for the improved lead-acid batteries, 48 wh/kg for the improved ...

Major progress has been achieved in the lead-acid, nickel/iron and nickel/zinc battery technology development since the initiation of the Near-Term EV Battery Project in 1978. Against the specific energy goal of 56 Wh/kg the demonstrated specific energies are 41 Wh/kg for the improved lead-acid batteries, 48 Wh/kg for the improved ...

The University of Minnesota barley-breeding program is a good example of advanced cycle breeding that has achieved genetic gains for agronomic and malting quality traits but with a proven reduction in genetic diversity. However, there are no studies examining the effect of advanced cycle breeding on...

Effective long-range energy planning begins with a reflective analysis that encompasses the complexity of today's energy reality and sets a course for activity to achieve long-range continuing advancement. This strategy approach involves an interrelated 'cycle' that once started and controlled in the proper direction is almost self-building in ...

The Heat Cycle Research Program is investigating potential improvements to power cycles utilizing moderate temperature geothermal resources to produce electrical power. Investigations have specifically examined Rankine cycle binary power systems. Binary Rankine cycles are more efficient than ...

The performance of binary geothermal power plants can be improved through the proper choice of a working fluid, and optimization of component designs and operating conditions. This paper summarizes the investigations at the Idaho National Engineering Laboratory (INEL) which are examining binary cycle performance improvements for ...

Significant progress in nickel/zinc and nickel/iron technology has been made towards achieving the battery technical performance goals necessary for widespread use of these battery systems in electric vehicle applications. This progress is reviewed. Nickel/zinc module test data have shown a specific energy of nearly 70 Whr/kg and a specific power of 130 W/kg. However, ...

Demonstrations of improved fuel management and burnup are being performed in the Fort Calhoun reactor. More efficient fuel management will be achieved through the implementation of a low leakage concept called SAVFUEL (Shimmed And Very Flexible Uranium Element Loading), which is expected to reduce uranium requirements by 2 to 4%. The burnup will be ...

This paper discusses the thermodynamics of power cycles where steam or water are mixed with air (or combustion gases) to improve the performance of stationary gas turbine cycles fired on clean fuels. In particular, the authors consider cycles based on modified versions of modern, high-performance, high-efficient ...

This report presents the results of a preliminary study concerning the use of high speed turbomachinery in a solar-assisted Rankine cooling cycle. The use of Rankine cycles in solar powered cooling of buildings involves a solar collector to provide energy to heat and vaporize a working fluid. Energy is extracted from this vapor in an expansion engine that ...

Based on relevant material property data and previous model formulations, a magnetothermodynamic property map for gadolinium gallium garnet (Gd3Ga5O12) was adapted for refrigeration cycle analysis in the temperature range 4-40 K and the magnetic field range 0-6 T. Employing methods similar to those previously developed for other materials and temperature ranges, assessments of ...

A study is presented of solar air conditioning systems based on ammonia-water as the refrigerant-absorbent pair, with particular attention given to the types of absorption cycles which may be suitable. The use of double effect distillation, double evaporation, and heat recuperation for improving cycle efficiency is discussed. ...

Decentralized design methods will always greatly facilitate the optimum design of large engineering systems whenever a High Degree of Decentralization (HDD) is achieved. HDD allows the optimization of each component by itself without significantly sacrificing the overall system optimum. In this paper, a primary engineering component costing expression is introduced, resulting ...

The Lightning Arrestor Connector (LAC), part �M�, presented opportunities to improve the processes used to fabricate LACs. The A## LACs were the first production LACs produced at the KCP, after the product was transferred from Pinnellas. The new LAC relied on the lessons learned from the A## LACs; however, additional improvements were needed to meet ...

The Heat Cycle Research Program, which is conducted for the Department of Energy, has as its objective the development of the technology for effecting the improved utilization of moderate temperature geothermal resources. The current testing involves the investigation of the performance of binary power cycles utilizing mixtures of ...

The diagnostic imaging department strives for the highest quality outcomes in imaging quality, in diagnostic reporting, and in providing a caring patient experience while also satisfying the needs of referring physicians. Understand how tools such as process mapping and concepts such as Six Sigma and Lean Six Sigma can be used to facilitate quality improvements and team ...

Results of Southern California Edison's program to demonstrate the Electric Power Research Institute (EPRI) Heat Rate Improvement Guidelines at the Ormond Beach Generating Station, Unit 2 are described in this report. The program included the following major tasks: (1) Installed turbine cycle instrumentation to provide ASME Performance ...

The alkali metal vapor topping cycle with a steam cycle offers the potential of achieving a higher cycle efficiency than the steam cycle alone. An efficiency of about 50% is predicted for a cycle which employs either potassium or cesium with a vapor tempe...

... SPECIFICALLY IT DEALS WITH THE CURRENT POLICY ON LIFE CYCLE COST, APPROACHES FOR INCORPORATING LCC INTO SOURCE ...

This report presents results of Task 3 of the Westinghouse ATS Phase II program. Objective of Task 3 was to analyze and evaluate different cycles for the natural gas-fired Advanced Turbine Systems in order to select one that would achieve all ATS program goals. About 50 cycles (5 main types) were evaluated on basis of plant efficiency, ...

This study aims at the evaluation of the best performance obtainable from steam-gas turbine combined plants both in a new plant design and in improving existing steam plants by adding a topping gas turbine system. A method of comparison is presented based on the choice of a steam-gas reference cycle which as shown to be be particularly suitable for a ...

+# BLISS is a method for optimization of engineering systems by decomposition. It separates the system level optimization, having a relatively small number of design variables, from the potentially numerous subsystem optimizations that may each have a large number of local design variables. The subsystem optimizations are autonomous and may be conducted concurrently. Subsystem and system ...

... 26 Improving Classified Information Life Cycle Management . . . . . 27 ... Improving Classified Information Life Cycle Management ...

... 26 Improving Classified Information Life Cycle Management . . . . . 27 ... Improving Classified Information Life Cycle Management ...

... IMPROVING MARINE CORPS TOTAL LIFE CYCLE MANAGEMENT BY CONNECTING COLLECTED DATA AND SIMULATION by ...

The Heat Cycle Research Program, which is being conducted for the Department of Energy, has as its objective the development of the technology for effecting the improved utilization of moderate temperature geothermal resources. To meet this objective, the program has as one of its goals to improve the performance of geothermal binary ...

... to combined creep and thermal cycling loadings, the main achievements in the experimental study are: completion of a new thermal cycles with ...

At JPL we have developed, and implemented, a process for achieving life-cycle risk management. This

The Heat Cycle Research Program, which is being conducted for the Department of Energy, has as its objective the development of the technology for effecting the improved utilization of moderate temperature geothermal resources. To meet this objective, the program has as one of its goals to improve the performance of geothermal binary ...

... Accession Number : ADA529398. Title : Satisfying Requirements While Achieving Life-Cycle Cost Goals. Descriptive Note : Briefing charts. ...

... ON �LIFE CYCLE APPROACH IN PORT INFRASTRUCTURE, REDUCING FINANCIAL RISKS, AND ACHIEVING COST SAVINGS,� HELD AT PIANC HEADQUARTERS ... ...

Recent activities of the researches on the rocket based combined cycle engine in Japan Aerospace Exploration Agency are summarized. Aiming to realize the flight test in 10 years, JAXA has been making sub-scale model experiments as well as a series of component tests. In 08 fiscal year, sub-scale tests were carried out in Mach 6 flight condition and the stable ramjet combustion ...

BACKGROUND: Recently, the efficacy of functional electrical stimulation (FES) cycling have been demonstrated on the improvement of strength and motor control in adults with stroke. FES-cycling, providing a repetitive goal-oriented task, could facilitate cortical reorganization and utilization of residual cortico-spinal pathways. These ...

Many systems produce power using variable temperature (sensible) heat sources. The Heat Cycle Research Program is currently investigating the potential improvements to such power cycles utilizing moderate temperature geothermal resources to produce electrical power. It has been shown that mixtures of saturated hydrocarbons (alkanes) or ...

Life cycle design seeks to minimize the environmental burden associated with a product life cycle from raw materials acquisition through manufacturing, use, and end-of-life management. Two demonstration projects with industry were conducted to test, evaluate, and refine the life cycle design framework presented in the Life ...

Safety is a crucial issue in densely sailed waterways. Traffic guidance systems (VTS) have proven to be valuable in this respect. The effectiveness of current systems and the benefits for improvements in navigation are addressed in this paper. Relevant incidents are analysed with a risk assessment tool (Accident Sequence Precursor method) developed for complex system analyses. ...

The quantity of greenhouse gas emissions (net carbon emissions) of corn-based fuel ethanol, which is known as an alternative for fossil fuel is an important criteria for evaluating its sustainability. The methodology of carbon balance analysis for fuel ethanol from corn was developed based on principles of life cycle analysis. For the production state of fuel ethanol from ...

Since the current solar cycle 23 has progressed near the end of the cycle and accurate solar minimum

This report presents evaluation findings regarding the implementation and effectiveness of the Academics 2000, Cycle VIII grant in the Austin Independent School District (AISD), Texas. The purpose of Academics 2000 was to raise the level of academic achievement of all Texas students by ensuring that each child achieves early mastery of ...

... science process skills and an understanding of life cycles. This will be achieved through inquiry-based and ... on observing and recording changes in the life cycles of animals and plants while comparing ...

A standard unfired combined cycle is used as a reference process. Some changes are made to the steam cycle to improve the combined cycle efficiency. By decreasing temperature differences and pressure losses, decreasing condenser pressure and using a 3-pre...

Different cycle concepts for improved thermal power generation efficiency based on natural gas are presented. The performance of combined cycles and steam-injected cycles as well as advanced gas turbine cycles with steam injection, water injection and rec...

Microprocessor assisted programmable controllers as time cycle control devices have been installed in Getty Oil Company's intermittent gas lift operation in the Ventura Avenue field. Electric clock intermitters located at each well site were replaced by centralized programmable controllers. Intermittent gas lift cycles for 125 wells are now ...

In spite of setbacks, substantial success has been achieved by the various nonproliferation efforts over the past 50 years. Because the pace of technology evolution remains high and the cost of entry to nuclear weapons technology is decreasing, improved approaches are critical if similar success is to be achieved over the next 20 ...

This study examines steam reactivation of sorbent to improve the reversibility of multiple CaO-CO{sub 2} capture cycles. Experiments to obtain spent sorbent were performed in a tube furnace, and reactivation was achieved using steam in a pressurized reactor. Sorbent activity for CO{sub 2} capture was then tested in a thermogravimetric ...

A strategy for the implementation of the Six Sigma method as an improvement solution for the ISO 9000:2000 Quality Standard is proposed. Our approach is focused on integrating the DMAIC cycle of the Six Sigma method with the PDCA process approach, highly recommended by the standard ISO 9000:2000. The Six Sigma steps applied to each part of the PDCA ...

The performance of open-cycle desiccant air conditioners for residential applications is evaluated. The performance of these systems is compared to that of vapor compression air conditioners on the basis of primary energy use and cost. Systems with improved dehumidifiers can achieve seasonal COP's on the order of 1.1. These ...

A new scavenging method for two-stroke cycle engines - Multi-Layer Stratified Scavenging (MULS) - has been developed. The MULS method is achieved by separating the mixture generated by the carburetor into a rich mixture and a lean mixture between the inlet manifold and the scavenging ports, and by finely controlling the scavenging flows. With the MULS ...

Filament-wound, titanium-lined, fiber/epoxy pressure vessels were fabricated using a very high-strength graphite fiber (3570-MPa typical fiber strength). The 0.254-mm-thick titanium liner was used to improve burst performance. The pressure vessels achieved an average burst performance of 241 kPa . m/sup 3//kg, and the fatigue life of titanium liners with ...

This paper presents results of development tests of various solar thermal parabolic dish modules and assemblies that used dish-mounted Brayton or Stirling cycle engines for production of electric power. These tests indicate that early modules achieve net efficiencies up to 29 percent in converting sunlight to electricity, as delivered to the grid. Various ...

Current 300 mm fabs rely heavily on automation to provide manufacturing efficiency. While implant processes and equipment follow this trend, tool availability and maintenance cycles are often driven by the ion source and adjacent areas which suffer from premature failures due to unwanted material deposits. While working in a high volume production environment, side by side ...

An improved method and apparatus four operating a high-speed four cycle compression ignition engine cause the amount of nox in the exhaust gases to be reduced substantially. The improved method of operating the high-speed for cycle compression ignition engine is of the type wherein fresh working fluid is introduced ...

This paper presents results from an experimental research program attempting to improve the thermodynamic efficiencies of gas-turbine combustors. An elementary thermodynamic analysis shows that the thermodynamic cycle efficiencies of gas turbines can be significantly improved by using unsteady combustion that ...

The HTGR offers significant improvements in the utilization of uranium and thorium by increases in the conversion ratio of fissile nuclides. The possible tradeoffs in core design features which result in higher conversion ratios are discussed. The cost effects of fuel cycle tradeoffs affecting resource utilization are presented in graphical form. ...

... This portion of the cycle can be improved with further emphasis on commodity management, simultaneous and continuous testing, and assignment ...

... Title : Development and Testing of Improved Techniques for Modeling the Hydrologic Cycle in a Mesoscale Weather Prediction System. ...

... Title : Development and Testing of Improved Techniques for Modeling the Hydrologic Cycle in a Mesoscale Weather Prediction System. ...

... Title : Development and Testing of Improved Techniques for Modeling the Hydrologic Cycle in a Mesoscale Weather Prediction System. ...

The ALS project plan goals are reducing cost, improving performance, and achieving flight readiness. ALS selects projects to advance the mission readiness of low cost, high performance technologies. The role of metrics is to help select good projects and ...

these improved engines. The M.I.T. Gas Turbine Laboratory (GTL) has a long history of developing advanced 1: A robust design cycle for a gas turbine engine Several barriers exist in achieving an effective. These methodological barriers are common for all our applications of robust design to gas turbine engines

This review indicates the present limiting capacities within the Redox plant and presents courses of action necessary to realize an instantaneous rate of 12/TD. The changes contemplated to reach this goal are time cycle reductions, procedural changes, and equipment changes which can be undertaken and achieved by the Redox organization presumably without ...

The nuclear power industry has been very successful at reducing waste volumes and waste sources. The success has been driven by escalating cost, decreasing disposal ability, and a desire by the industry to achieve excellence. The result has been a cycle of continuing improvement resulting in reduced cost. Many of the examples of Dry ...

This study reviews a broad range of international cooperative measures to control the development of nuclear energy. Discussed are: trends in civil nuclear energy; improving the present international nuclear regime; IAEA safeguards and the nonproliferation treaty; assurance of nuclear fuel supplies; the back end of the fuel cycle; new institutional ...

In FY09, as a result of an initiative to improve net income, reduce expenses, and enhance revenue cycle processes, in which leaders' goals were tied to the financial performance of the organization, Baptist Health Care achieved: A $17 million increase in net operating income. A $9.2 million reduction in operating costs. Patient ...

converter systems. This paper proposed three kinds of high resolution DPWM methods. The proposed modulation frequency of power stage and fclock is the controller system clock frequency. Taking the Buck converter times improvement can be achieved by changing the modulation scheme with the same system clock frequency

phase process (i.e., Westinghouse process). This improved performance was achieved at one-tenth the Pt of the cycle [4,5]. In the 1970s, Westinghouse Electric Corporation developed the hybrid sulfur process, which-phase anode stream. Westinghouse demonstrated this process on a scale of 150 l/h of hydrogen in 1976

Information covering insulation, weatherstripping, thermostats, and similar energy-conserving techniques are presented. Procedures for dealing with bankers and contractors are explained. How a wall works, how the human body reacts to heat and cold, and a thermal diagnosis are included in the first three chapters. Other chapters are Improving the Home; Choosing Materials; ...

The performance of binary geothermal power plants can be improved through the proper choice of a working fluid, and optimization of component designs and operating conditions. This paper reviews the investigations at the Idaho National Engineering Laboratory (INEL) which are examining binary cycle performance improvements: for moderate ...

In addition to web adresses and 2-paragraph outlines of research programs his site provides tangible information on all aspects of an LCA. The author defines LCA: "Life-cycle analysis is an analysis method which quantifies the environmental impact of products and services during their entire life cycle. The different stages (raw material extraction, ...

The energy conversion efficiency of the combustion process can be improved if immediate contact of fuel and oxygen is prevent4ed and an oxygen carrier is used. In a previous paper (Harvey et al., 1992), a gas turbine cycle was investigated in which part of the exhaust gases are recycled and used as oxygen-carrying components. For the optimized process, a ...

To induce bending motion in a perfluorinated polymer electrolyte by electric stimuli in water or saline solution, plating with metal is required. To fabricate electrodes, a perfluorocarboxylic acid membrane was soaked in Au(III) di- chloro phenanthroline complex solution, and then any adsorbed Au(III) cation complex was reduced in aqueous sodium sulfite. Optimizing the motion response depends on ...

A conventional split system air conditioner is combined with a compression cycle or heat pump system for supplying heat to a domestic water heater. The units are combined in such a way that significant energy savings can be achieved by circulating air in series through the outdoor evaporator coil of the hot water heating system and then through the ...

An increasing number of people around the world are beginning to realize that a systems approach, such as life cycle thinking, is necessary to truly achieve environmental sustainability. Without the holistic perspective that life cycle thinking provides, our actions risk leading ...

Unlike diffusion of earlier weapons as by-products of trade, the diffusion of nuclear weapons and nuclear wastes as by-products of nuclear-electric fuel impose apparently irrevocable inter-generational costs. However, constraints upon nuclear fuel cycle use and improvement may also have inter-generational impacts, through depletion of non-renewable fossil ...

Cleaner manufacturing is an increasing goal for industry in Europe for both existing and new facilities. The central issue, is, how does one quantify cleaner? Toward that end, many university and industry groups in Europe are applying the principles of life cycle analysis (LCA). They also seek to develop new methods for use in the life cycle analysis ...

An energy system with the considered vapor cycle heat engine is to power an assist heart pump in synchronous operation with the biologic heart and to achieve a significant reduction of left ventricle pressure. The engine, known as the tidal regenerator engine (TRE), has been incorporated into a nuclear-powered implantable system. The system has been ...

In a project led by Research for Better Schools (RBS), educators work with researchers to improve basic skills learning. Based on research findings relating the amount of time allocated for instruction and student achievement, one school made scheduling changes to reduce the time spent moving from one classroom to another. Other classroom variables ...

Accumulative back extrusion (ABE) is a kind of severe plastic deformation process to refine the microstructure, resulting in significant improvement in mechanical properties. In the present study, AA6061-T6 alloy was subjected to a newly designed ABE process at room temperature. One cycle of ABE was employed to the workpiece. The microstructural evolution ...

The heat balanced or combined cycle engine with time dependent combustion sustained by two chamber geometry was demonstrated experimentally. The theoretical basis and hardware for achieving the cycle are described. Evidence of time dependent heat addition is given where combustion creates pressure waves sustained by pressure exchange ...

Masticatory efficiency, oral function and degree of satisfaction with the treatment received were analysed in a group of fully edentulous patients with severe atrophy of the mandibular bone, rehabilitated with complete removable dentures, before and after anchoring the dentures to osseointegrated implants. Masticatory efficiency increased significantly and chewing cycles ...

Various efforts of Naval Academy researchers have been directed toward improving the combustion cycle of spark ignition engines. During the past several years they have developed a technique which is based on pressure exchange between two zones in the combustion chamber thereby achieving a heat balanced cycle ...

An improved multilayer continuous biological membrane reactor and a process to eliminate diffusional limitations in membrane reactors in achieved by causing a convective flux of nutrient to move into and out of an immobilized biocatalyst cell layer. In a pressure cycled mode, by increasing and decreasing the pressure in the respective ...

A comparative life cycle assessment examining soybean and petroleum-based lubricants is compiled using Monte Carlo analysis to assess system variability. Experimental data obtained from an aluminum manufacturing facility indicate significantly less soybean lubricant is required to achieve similar or superior performance. With improved ...

This paper discusses business practices that organizations should follow to improve their chances of

Improved lixiscope utilizes fast-decay scintillators and multiple or curved microchannels to achieve

Highly selective laser tuning achieved without thin plates of questionable optical quality. Improved

The water cycle is continuously being transformed by climate change, erosion, pollution, salinization, and engineering practices, and is central to drought, flood, and disease hazards. Therefore, it is a national priority is to use advancements in scientific observations and knowledge to develop solutions to society's water challenges. NASA's unique role in this national ...

Externally Fired Combined Cycles (EFCCs) can increase the amount of electricity produced from ash bearing fuels up to 40%, with overall powerplant efficiencies in excess of 45%. Achieving such high efficiencies requires high temperature-high pressure air heaters capable of driving modern gas turbines from gas streams containing the products of coal ...

Lithium ion systems, although relatively new, have attracted much interest worldwide. Their high energy density, long cycle life and relative safety, compared with metallic lithium rechargeable systems, make them prime candidates for powering portable electronic equipment. Although lithium ion cells are presently used in a few consumer devices, e.g., portable phones, ...

Lithium ion systems, although relatively new, have attracted much interest worldwide. Their high energy density, long cycle life and relative safety, compared with metallic lithium rechargeable systems, make them prime candidates for powering portable electronic equipment. Although lithium ion cells are presently used in a few consumer devices, e.g., portable phones, ...

This document presents the methods and procedures used and the results obtained in the design, fabrication, and testing of a rotary vane type compressor operated on air cycle thermodynamics. The history and results of the testing of a similar expander are summarized and the full report of that work is referenced. The machine design used was based on one patented by Ecton ...

Beyond Weather and the Water Cycle is an online professional development magazine which focuses on preparing elementary teachers to teach climate science concepts while also integrating inquiry-based science and literacy instruction. The project draws on research showing that an integrated approach can improve student achievement in ...

Sylvatica is a Life-Cycle Assessment (LCA) consulting firm and research group with offices in the United States and Canada. In addition to our work with client organizations, we pursue a number of independent initiatives to realize our mission: Sylvatica's mission is to propose creative solutions to improve -- and eventually make positive -- the ...

A Self-Directed Work Team (SDWT) was developed to transfer a polyimide process module from the research laboratory to our wafer fab facility for applications in IC specialty devices. The SDWT implemented processes and tools based on the integration of five manufacturing strategies for continuous improvement. These were: Leadership Through Quality (LTQ), Total Productive ...

BackgroundAchieving sustainable economic and social growth through advances in health is crucial in Latin America within the framework of the United Nations Millennium Development Goals.DiscussionHealth-related Millennium Development Goals need to incorporate a multidimensional approach addressing the specific epidemiologic profile for each region of the globe. In this regard, ...

Solid lithium--aluminum alloy electrodes have shown a great deal of promise for meeting the performance requirements of negative electrodes in lithium/metal sulfide batteries for stationary energy storage and for electric vehicle propulsion. In an effort to improve the performance of the lithium--aluminum alloy electrode, investigations were conducted to determine the effect ...

Due to the complex nature of hybrid electric vehicles, control strategies based on engineering intuition frequently fail to achieve satisfactory overall system efficiency. This paper presents a procedure for improving the energy management strategy for a parallel hybrid electric truck on the basis of dynamic optimization over a given drive ...

... Title : Life Cycle Processes: Standards, Capability and Maturity Models, Process Improvement Models, and Appraisal Methods. ...

... Descriptors : *COST ANALYSIS, *LIFE CYCLE MANAGEMENT, MANAGEMENT PLANNING AND CONTROL, ACQUISITION, COST ...

... Accession Number : ADD878846. Title : FULL CYCLE CORRECTIVE ACTION ?FCCA! FOR IMPROVED WARRANTY SERVICE. Corporate Author : ...

... Title : The Road to Continuous Improvement: BPR and Project Management. ... in order to achieve radical performance improvements in speed, cost ...

... DoD is achieving significant performance improvements in its ... through the application of Continuous Process Improvement (CPI) concepts ...

... Title : Assessment of Logistics Improvements Made by Department of ... savings were achieved to show The potential of continuous improvement. ...

i-ion batteries based on commercially available LiFePO4 cathode and Li4Ti5O12 anode were investigated for potential stationary energy storage applications. The full cell that operated at flat 1.85V demonstrated stable cycling for 200 cycles followed by a rapid fade. A significant improvement in cycling stability ...

... states (the foreign object damage (FOD) and fretting damage models are dependent on the low cycle fatigue / high cycle fatigue (LCF/HCF) and ...

This invention relates to heating and cooling systems and more particularly to an improved system utilizing a Stirling Cycle engine heat pump in a refrigeration cycle. 18 figs.

This invention relates to heating and cooling systems and more particularly to an improved system utilizing a Stirling Cycle engine heat pump in a refrigeration cycle.

This study is prepared to provide a basis for projecting and substantiating near and immediate-term improvements in the Light Water Reactor (LWR) resource utilization. The evaluation is described in three parts: (1) History of LWR (2) Fuel Utilization: A brief history of LWR fuel burnup experience, with interpretation/extrapolation to the year 2000. (3) Potential ...

Several design options for improving the energy efficiency of conventionally-designed, domestic refrigerator freezers (RFs) were incorporated into two 1990 production RF cabinets and refrigeration systems. The baseline performance of the original units and unit components were extensively documented to provide a firm basis for experimentally measured energy savings. A detailed ...

The R and D project which was funded by the Federal Minister of Research and Technology (BMFT) aimed at the investigation of the binary vapor cycle with regard to technical feasibility and economy. The objective to use the primary energy source coal more economically and in an environmentally more acceptable manner cannot be achieved by ...

Hadamard transform time-of-flight mass spectrometry (HT-TOFMS) is based on the pseudorandom gating of ion packets into a time-of-flight mass-to-charge analyzer. In its typical implementation, the technique is able to monitor continuous ion sources with a 50% duty cycle, independent of all other figures of merit. Recently, we have demonstrated that the duty ...

The main objective is to identify and assess advanced improvements to the Brayton Cycle (such as but not limited to firing temperature, pressure ratio, combustion techniques, intercooling, fuel or combustion air augmentation, enhanced blade cooling schemes) that will lead to significant performance improvements in coal based power ...

Present GT(Gas Turbine) Systems are available to achieve 52% (LHV) thermal efficiencies, plants in construction will be capable of 54%, and the goal of this study is to identify incentives, technical issues, and resource requirements to develop natural gas-and coal-compatible ATS which would have a goal of 60% or greater based on LHV. The prime objective of this project task ...

Present GT(Gas Turbine) Systems are available to achieve 52% (LHV) thermal efficiencies, plants in construction will be capable of 54%, and the goal of this study is to identify incentives, technical issues, and resource requirements to develop natural gas-and coal-compatible ATS which would have a goal of 60% or greater based on LHV. The prime objective of this project task ...

... Accession Number : ADA459746. Title : Lean Six Sigma for Reduced Cycle Costs and Improved Readiness. Descriptive Note : Technical rept. ...

... Title : Improving Marine Corps Total Life Cycle Management by Connecting Collected Data and Simulation. Descriptive Note : Master's thesis. ...

... DEVELOPMENT OF SILVER-ZINC CELLS OF iMPROVED CYCLE LIFE AND ENERGY DENSITY ... DEVELOPMENT OF SILVER-ZINC CELLS OF ...

... The research was designed to improve the cycle life and energy density of silver zinc cells, particularly those used in naval propulsion systems, by ...

calculations of activity levels were made for the rising and declining phases in solar cycle. 23, which resulted in improved projection of sunspots in the ...

The first development effort in improving lead-acid batteries fore electric vehicles was the improvement of electric vehicle batteries using flat pasted positive plates and the second was for a tubular long life positive plate. The investigation of 32 component variables based on a flat pasted positive plate configuration is described. The experiment ...

ObjectivesA SWOG/GOG phase 3 trial exploring the impact of 12-monthly cycles of paclitaxel given to patients with advanced ovarian cancer who achieved a complete response to primary chemotherapy was discontinued by the Data Safety and Monitoring Committee when a prospectively-defined interim analysis revealed a highly statistically significant ...

Collaboration empowers everyone in different ways: in the school setting it brings partnerships with colleagues and relevance to the cycle of ongoing instructional improvement; in a regional setting it provides an understanding of the various facets that make up an exemplary library media program along with the challenges of the classroom. The ...

Novel chemicals that can be used for increasing the efficiency of fine coal dewatering was developed at Virginia Tech. During the past quarter, Reagent A was tested on three different coal samples in laboratory vacuum filtration tests. these included flotation products from Middle Fork plant, Elkview Mining Company, and CONSOL, Inc. the tests conducted with the Middle Fork coal sample (100 mesh x ...

... Supply Management: 3 Distribution/Transportation: 5 Maintenance Support: 1 Defense Lifecycle Logistics: 2 PDF: ... Acquisition IPT Life Cycle ...

... Century; Effects-based requirements; Commercially driven research and development, and; Outcome-based partnership life cycle product support. ...

Resource for participants of the 2008 NASA Carbon Cycle and Ecosystems Joint ... physiology or carbon fixation on a global scale has not been achieved. ...

Net primary production (NPP) is a key component of the global carbon cycle. Among the pools and fluxes that make up the cycle, NPP accounts most of the annual carbon fluxes between the atmosphere and biosphere. To improve our understanding and estimating the NPP accurately at various spatial and temporal scales, there is a need for ...

In mid-July 2000, a Cycle Time Reduction (CTR) project was initiated by senior management to improve the flow and overall efficiency of the respirator distribution process at Y-12. A cross-functional team was formed to evaluate the current process and to propose necessary changes for improvement. Specifically, the team was challenged ...

The GPM mission is currently planned for start in the late'07 - early'08 time frame. Its main scientific goal is to help answer pressing scientific problems arising within the context of global and regional water cycles. These problems cut across a hierarchy of scales and include climate-water cycle interactions, techniques for ...

Documentation of the application of the principles of continuous quality improvement (CQI) to the health care setting is crucial for understanding the transition from traditional management models to CQI models. A CQI project was designed and implemented by the IV Therapy Department at Lawrence Memorial Hospital to test the application of these principles to intravenous ...

The concept of a flywheel energy management power plant (FEMP) for automobiles, consisting of an internal combustion engine, an energy-storage flywheel, and a continuously-variable transmission (CVT), has been found to have the potential of greatly increasing fuel economy in urban driving. The improvement occurs because of two factors: (1) The engine is only run at or near its ...

Caterpillar has been developing advanced low-heat-rejection (LHR) engine designs because by insulating the combustion chamber components for reduced heat rejection, improved fuel economy and emission reduction can be achieved. The insulation eliminates heat loss during the closed portion of the cycle and increases the combustion ...

Combination therapy with azacitidine and etanercept was hypothesized to lead to improved responses in myelodysplastic syndrome (MDS) patients. Thirty-two patients with MDS/chronic myelomonocytic leukaemia were treated with azacitidine + etanercept; 30 completed at least three therapy cycles. At 3 months, nine patients had achieved ...

SummaryCombination therapy with azacitidine and etanercept was hypothesized to lead to improved responses in myelodysplastic syndrome (MDS) patients. Thirty-two patients with MDS/chronic myelomonocytic leukaemia were treated with azacitidine+etanercept; 30 completed at least three therapy cycles . At 3 months, nine patients had ...

A conversion efficiency of 15.9% has been achieved on low-cost edge-defined film-fed grown silicon ribbon solar cells. This represents an improvement over the previously reported efficiencies for silicon ribbon solar cells with manufacturable screen-printed contacts and single layer silicon nitride (SiNx) antireflection coating. Two separate rapid thermal ...

Jean Piaget describes the formal level of reasoning as the most complex. The dissertation examines the Learning Cycle Intervention effectiveness in transferring students from the concrete to the formal level of reasoning required in most science courses. Four major hypotheses were developed to guide the study. The study consisted of 67 physical science students at a two-year ...

BackgroundThis retrospective pooled analysis of two phase III trials (MM-009/MM-010) compared clinical outcomes of patients who achieved a complete response or very good partial response to treatment with lenalidomide plus dexamethasone with the outcomes of those who only achieved a partial response.Design and MethodsPatients (n=353) received lenalidomide ...

... Title : Residual Stress Measurement and Its Application to Achieve Predicted Full Life Potential of Low Cycle Fatigue Limited Engine Disks,. ...

... Title : VOLTAGE-REGULATOR PROCESS INNOVATIONS ACHIEVE IMPROVEMENTS ... Abstract : LINEAR VOLTAGE REGULATORS ARE BEING ...

... to significantly improve the throughput achieved in the search for bent ... a high throughput (one function per clock) approach to searching for bent ...

... Achievement and Educational Experience Variables (Port A), Evaluation and Improvement of Training in Functional Military Literacy, (Part B),. ...

The effects of crystal geometry, heat transport, and optics on high duty cycle germanium hole population inversion lasers are investigated. Currently the laser's low duty cycle limits its utility for many applications. This low duty cycle is a result of the combination of the large electrical input power necessary and insufficient heat ...

Problem-solving teams, involving front-line staff, are widely used to achieve continuous process improvement. Approaches such as "plan-do-study-act" (PDSA) cycles, are now a core element of many health-care improvement initiatives. This paper evaluates the use of PDSA improvement ...

Low plasticity burnishing (LPB) has been investigated as a surface enhancement process and corrosion mitigation method for aging aircraft structural applications. Compressive residual stresses reaching the alloy yield strength and extending to a depth of 1.25 mm (0.050 in.) deeper than typical corrosion damage is achievable. Excellent surface finish can be ...

A PLL clock generator with reconfigurable multi-functions for FPGA design applications is presented. This clock generator has two configurable operation modes to achieve clock multiplication and phase alignment functions, respectively. The output clock signal has advanced clock shift ability such that the phase shift and duty cycle are programmable. In ...

Non-cycling human T-lymphocytes from normal subjects show a 10-fold greater sensitivity than fibroblasts to UV-B (280-315 nm) irradiation from a Westinghouse FS20 lamp, but only a 2.7-fold greater sensitivity to UV-C (254 nm) irradiation. Hypersensitivity is associated with a deficiency in the rejoining of excision breaks. Non-cycling T-lymphocytes have ...

... Author : NATIONAL RESEARCH COUNCIL WASHINGTON DC ... FOR IMPROVING SOFTWARE QUALITY AND LIFE ... of the environment to identify ...