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Tightness, as well as the reliability of the valve plate, is a complex property of the effective operation of compressor cylinders of the first stage and, in general, gas-engine reciprocating compressors. The issue of valve plate tightness is a subject of independent study, since technical and economic efficiency depends on their work. In this connection, only some data obtained under operating conditions are presented in this work. As a research result, it is found that, taking into account the identified requirements for the gas lift system, in order to effectively increase the operating hours of valves with increased tightness of the plate, it is necessary to check and purge the valves. Therefore, each valve in the gas lift compressor station, without subjecting them to cleaning, is first recommended to check for leaks. To confirm the feasibility of checking valve tightness, special equipment is offered for each gas-lift compressor station, a purge chamber, on which the tightness of valve plates is checked. The usefulness and importance of the purge chamber is in preparation of the valve at the gas lift compressor station, which contributes to increased efficiency, safe operation, normal tightness and reliability of its operation.
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&NA;. "NOVEL CARDIAC ASSIST VALVE WITH A PURGE FLOW IN THE VALVE SINUS." ASAIO Journal 44, no. 2 (March 1998): 15A. http://dx.doi.org/10.1097/00002480-199803000-00049.
Affeld, Klaus, Leonid Goubergrits, and Oliver Holberndt. "Novel Cardiac Assist Valve With a Purge Flow in the Valve Sinus." ASAIO Journal 44, no. 5 (September 1998): M642—M647. http://dx.doi.org/10.1097/00002480-199809000-00069.
Yang, Sung-Nam, Seong-Ho Noh, and Jong-Hyen Seo. "A Six Sigma Application Case Study to Improve a Rolled Throughput Yield of an Automobile PCSV(Purge Control Solenoid Valve)." Journal of the Korea Safety Management and Science 14, no. 1 (March 31, 2012): 179–87. http://dx.doi.org/10.12812/ksms.2012.14.1.179.
Senkan, Selim M., and Scott C. Deskin. "A continuous-purge pulsed valve suitable for high-temperature applications." Review of Scientific Instruments 68, no. 11 (November 1997): 4286–87. http://dx.doi.org/10.1063/1.1148343.
Coelho, R. Filomeno, H. Bersini, and Ph Bouillard. "Parametrical mechanical design with constraints and preferences: application to a purge valve." Computer Methods in Applied Mechanics and Engineering 192, no. 39-40 (September 2003): 4355–78. http://dx.doi.org/10.1016/s0045-7825(03)00418-3.
Chang, Jingjing, Wei Xiao, Yanlin Chen, Shenghua Qu, Yan Wang, and Xin Ma. "Analysis and optimization of idle noise caused by canister purge solenoid valve." E3S Web of Conferences 268 (2021): 01018. http://dx.doi.org/10.1051/e3sconf/202126801018.
In the development process of a certain CHINA VI proprietary brand car model, there exists the problem of intermittent “dada” sound in the cockpit during idling. After investigation, it’s determined that the air pulse noise generated when the canister purge solenoid valve is working, it is transmitted to the car panels through the pipeline, and then to the cockpit, which would cause a “dada” sound. By adding expansion chamber in the desorption pipe and designing part of the pipeline which fixed in the clamp as rubber pipe, the intensity of air pulse can be effectively reduced and the transmission path of air pulse vibration can be blocked. Through objective testing and subjective evaluation, the scheme can greatly reduce the idle noise of the cockpit, thus improving the NVH performance of the vehicle and bringing comfortable riding environment to the passengers.
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Timmel, T., L. Goubergrits, and K. Affeld. "Optimization and Investigation of a Novel Cardiac Assist Valve with a Purge Flow." International Journal of Artificial Organs 24, no. 11 (November 2001): 777–83. http://dx.doi.org/10.1177/039139880102401110.
Kabanov, Petr V., and Aleksei N. Terentev. "The Study of Characteristics of Two-Stroke Engine with the Crank-Purge Valve." History of Land Transport 1, no. 1 (September 12, 2015): 26–30. http://dx.doi.org/10.13187/hlt.2015.1.26.
Manwatkar, Sushant, S. V. S. Narayana Murty, and P. Ramesh Narayanan. "Failure Analysis of AISI 302 Steel Compression Spring Used in Flush and Purge Valve of Liquid Engine." Materials Science Forum 830-831 (September 2015): 705–8. http://dx.doi.org/10.4028/www.scientific.net/msf.830-831.705.
AISI 302 stainless steel is used for making compression springs for launch vehicle programmes. One such AISI 302 stainless steel compression spring used in flush and purge valve of liquid engine of a satellite launch vehicle failed during testing. The failure was at the second round of spring and it failed in a slanted type fracture. Detailed metallurgical analysis indicated that the failure was due to fatigue.
Politis, Vasilis. "Pure altruism : its possibility and value." Thesis, University of Oxford, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260696.
Al-Kharafi, Abdulmohsen A. H. "Finite element solution of initial/boundary value problems." Thesis, Loughborough University, 1986. https://dspace.lboro.ac.uk/2134/32335.
In the last few decades, the Finite Element Method (F.E.M.) has become one of the best techniques used to solve a vast variety of the world's initial/boundary value problems. When such a powerful method is facilitated by a 'user friendly' computer program that possess both pre- and post-processors together with an automatic mesh generation and refinement processor, it becomes indeed a powerful tool to solve a wide range of problems in Applied Mathematics and Engineering. This thesis is an attempt to show the potential of the method which is implemented by a general purpose program used to solve problems governed by partial differential equations (P.D.E.s).
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Hay, R. "The impact of vector processors on boundary value codes." Thesis, University of Manchester, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377736.
Lord, Gabriel James. "The dynamics of numerical methods for initial value problems." Thesis, University of Bath, 1994. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387159.
Chang, Chung-Yie. "Boundary value problems for differential equations driven by rough signals." Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299835.
Sanugi, Bahrom B. "New numerical strategies for initial value type ordinary differential equations." Thesis, Loughborough University, 1986. https://dspace.lboro.ac.uk/2134/14145.
This thesis is concerned with the development of new numerical techniques for solving initial value problems in ordinary differential equations (ODE). The thesis begins with an introductory chapter on initial value type problems in ordinary differential equations followed by a chapter on basic mathematical concepts, which introduces and discusses, among others, the theory of Arithmetic and Geometric Means. This is followed, in Chapter 3, by a survey of the existing ODE solvers and their theoretical background. The advantages and disadvantages of some different strategies in terms of stability and truncation error are also considered. The presentation of the elementary methods based on Arithmetic Mean (AM) and Geometric Mean (GM) formulae is done in Chapter 4, with emphasis on establishing the GM trapezoida1 formula, and to the study of its stability and truncation error. Applications in the predictorcorrector and the extrapolation techniques are also considered. Special application in the solution of delay differential equations is also presented. In Chapter 5, the application of the GM strategy in the Runge-Kutta type formulae is considered, producing a new class of methods called the GM-Runge-Kutta formulae which is found to be as competitive as the classical Runge-Kutta methods. Thereafter, a new strategy of error control called the Arithmeto-Geometric Mean (AGM) strategy is developed. Further application of the GM-Runge-Kutta in Fehlberg type formulae, and the GM-Iterative Multistep formulae are also considered. Chapter 6 concerns with further applications of GM techniques in the development of generalised GM mu1tistep and multiderivative methods, and for solving y'=λ(x)y. The general idea of the GM are also extended to other types of Means, such as Harmonic and Logarithmic Means. In Chapter 7, some new formulae for solving problems with oscillatory and periodic solutions are considered. Finally the thesis concludes with recommendations for further work.
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Austin, Francis Robert. "A vector bundle view of parameter-dependent boundary-value problems." Thesis, University of Surrey, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368417.
Clegg, Janet. "Bivariational methods and their application to nonlinear boundary value problems." Thesis, University of York, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306275.
Salomonsson, David, and Erik Eng. "A Component-based Model of a Fuel Cell Vehicle System." Thesis, Linköpings universitet, Fordonssystem, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-176698.
Improving the efficiency and performance of vehicle propulsion systems has always been desirable, and with increasing environmental awareness this has become increasingly topical. A particularly strong focus today is at fossil-free alternatives, and there is a strong trend for electrification. Hybrid powertrains of different types can bring benefits in certain aspects, and there is a lot of research and development involved in the making of a new powertrain. In this thesis, a complete powertrain for a fuel cell hybrid electric vehicle is modeled, with the intention of contributing to this trend. The model can be used to investigate design choices and their impact on energy consumption. A component-based library is developed, with the purpose of being easy to implement for different configurations. The results show that it is possible to assemble and simulate a complete hybrid drivetrain, using the modeled components, while not being very computationally heavy. The developed models correspond well with reality while being modular and easy to implement.
Whalley, John. Evaluating the impure Chinese VAT relative to a pure form in a simple monetary trade model with an endogenous trade surplus. Cambridge, Mass: National Bureau of Economic Research, 2007.
Møller, Erik. Græs og kløver i renbestand: II. kvalitet og foderværdi = Grass and clover in pure stand : II. quality and feeding value. [Kobenhaven]: Udgivet af Statens planteavlsforsøg og Statens husdyrbrugsforsøg, 1991.
It has long been recognized that Hegel’s Philosophy of Right offers the only systematic alternative to the dominant social contract tradition in modern political philosophy. The difficulty has been to characterize Hegel’s view of justice as having the same kind of intuitive appeal that has made social contract theory, with its voluntary consent and assignment of rights and privileges, such an attractive model. Hegel’s Value argues that Hegelian justice depends on a proper understanding of Hegel’s theory of value and on the model of life through which the overall conception of value, the Good, is operationalized. Through an examination of key episodes in Phenomenology of Spirit and a detailed reading of the entire Philosophy of Right, Hegel’s Value shows how Hegel develops his account of justice through an inferentialist method whereby the content of right unfolds into increasingly thick normative structures. The theory of value that Hegel develops in tandem with the account of right relies on a productive unity of self-consciousness and life, of pure thinking and the natural drives. The book argues that Hegel’s expressive account of the free will enables him to theorize rights not simply as abstract claims, but rather as realizations of value in social contexts of mutual recognition. Hegel’s account of justice is a living system of institutions centered on a close relation of the economic and political spheres and on an understanding of the law as developing through practices of public reason.
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Burskii, Vladimir P. Boundary Value Problems For Differential Equations (Pure and Applied Mathematics). CRC, 2007.
Testa, Luca, Matteo Casenghi, and Francesco Bedogni. "Transcatheter Aortic Valve Implantation for Pure Aortic Regurgitation." In Transcatheter Aortic Valve Implantation, 515–20. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-05912-5_44.
Hargrave, Matt. "Pure Products Go Crazy: The Aesthetic Value of Learning Disability." In Theatres of Learning Disability, 47–78. London: Palgrave Macmillan UK, 2015. http://dx.doi.org/10.1057/9781137504395_3.
Feldotto, Matthias, Martin Gairing, Grammateia Kotsialou, and Alexander Skopalik. "Computing Approximate Pure Nash Equilibria in Shapley Value Weighted Congestion Games." In Web and Internet Economics, 191–204. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-71924-5_14.
Baranzini, Mauro L., and Amalia Mirante. "Pasinetti on Structural Economic Dynamics and on the Pure Labour Theory of Value." In Luigi L. Pasinetti: An Intellectual Biography, 247–76. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-71072-3_9.
Liu, J. M., Q. H. Lu, and H. Q. Ying. "The Best Force Design of Pure Modal Test Based Upon a Singular Value Decomposition Approach." In Advanced Aerospace Applications, Volume 1, 119–29. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-9302-1_11.
Hagel, Ulrich. "The Value Add of Legal Departments in Disputes: Making a Business Case Rather Than Providing Pure Legal Advise." In Management for Professionals, 237–73. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-45868-7_16.
Morawetz, Cathleen S. "Boundary value problems for first order operators, (With Peter D. Lax), Comm. Pure Appl. Math., XVIII (1965), 355–388." In Kurt Otto Friedrichs, 375. Boston, MA: Birkhäuser Boston, 1986. http://dx.doi.org/10.1007/978-1-4612-5385-3_24.
Friedrichs, K. O., and P. D. Lax. "[65-1] Boundary value problems for first order operators, (With Peter D. Lax), Comm. Pure Appl. Math., XVIII (1965), 355–388." In Kurt Otto Friedrichs, 375–409. Boston, MA: Birkhäuser Boston, 1986. http://dx.doi.org/10.1007/978-1-4612-5379-2_13.
"Pure and Applied Mathematics." In Green's Functions and Boundary Value Problems, 587–89. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9780470906538.scard.
Young, James O. "The Value of Music." In Critique of Pure Music, 150–84. Oxford University Press, 2014. http://dx.doi.org/10.1093/acprof:oso/9780199682713.003.0005.
Chuang, Han-Sheng, and Steven T. Wereley. "Microfluidic Gas Purge Valves." In ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer. ASMEDC, 2009. http://dx.doi.org/10.1115/mnhmt2009-18534.
We present two PDMS-based gas purge valves for general lab-on-a-chip applications. The valves are devised based on a three-layer configuration comprising a top layer for fluid channels, a membrane, and a bottom layer for gas channels. The pneumatic valves work as a normal gateway for fluids when the membrane is bulged down (open state) or up (closed state) by vacuum or pressure, respectively. In a closed state, the residual gas in front of a fluid can be eliminated through a small notch or a permeable PDMS membrane by simply pumping the fluid. The purge valve with a small notch, termed surface-tension enable valve (ST valve), can resist pressure under 5.5 kPa. The liquid is retained by the surface tension force resulting from the surrounding hydrophobic walls. In contrast, the purge valve with vacuum grooves above the fluid channel, termed gas-permeation enable valve (GP valve), can resist pressure higher than 5.5 kPa. Based on permeation principle, the unwanted gas can slowly escape from the fluid channel through the PDMS membrane. The unique purge valves enable users to passively align fluids at the desire locations without actively sensing or having a feedback loop. A mixing process was successfully performed with the GP valves, showing their potential applications in microfluidics.
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Farrell, Joseph, and Stephen Wood. "An automated purge valve for marine salvage." In OCEANS 2009-EUROPE (OCEANS). IEEE, 2009. http://dx.doi.org/10.1109/oceanse.2009.5278295.
Delaire, Gilles, and David Balsdon. "Mathematical Modeling of a Balanced Canister Purge Solenoid Valve." In International Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1999. http://dx.doi.org/10.4271/1999-01-1080.
Barsoum, Imad, and Alberto Muñoz. "Failure Analysis of a Large Knife Gate Valve Subjected to Multiaxial Loading." In ASME 2017 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/pvp2017-65114.
Knife gate valves are common in process piping plants in the petrochemical industry. In this study a failure analysis is undertaken on a large knife gate valve attached on top of a Y-piece as part of a purge bin outlet in a polyethylene production facility. A large crack was discovered on the knife gate valve shortly after its installation and operation of the facility. The study outlines a methodology, based on the finite element method, to analyze failure of such units. It starts out by determining the stress intensification factors for a Y-piece by conducting an FEA, which are used in CAESER II piping software to determine the operational loads on the valve. The loads are used as inputs for a non-linear FEA model of the valve accounting for material failure based on continuum damage mechanics approach. The FEA results suggest that the operational loads are not the root cause to the observed failure on the gate valve. It is rather attributed to internal casting defects and the lack of post-heat treatment of the valve.
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DiCampli, James. "Combined Heat and Power: Gas Turbine Operational Flexibility." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-94467.
Combined heat and power (CHP) is an application that utilizes the exhaust heat generated from a gas turbine and converts it into a useful energy source for heating & cooling, or additional electric generation in combined cycle configurations. Compared to simple-cycle plants with no heat recovery, CHP plants emit fewer greenhouse gasses and other emissions, while generating significantly more useful energy per unit of fuel consumed. Clean plants are easier to permit, build and operate. Because of these advantages, projections show CHP capacity is expected to double and account for 24% of global electricity production by 2030. An aeroderivative power plant has distinct advantages to meet CHP needs. These include high thermal efficiency, low cost, easy installation, proven reliability, compact design for urban areas, simple operation and maintenance, fuel flexibility, and full power generation in a very short time period. There has been extensive discussion and analyses on modifying purge requirements on cycling units for faster dispatch. The National Fire Protection Association (NFPA) has required an air purge of downstream systems prior to startup to preclude potentially flammable or explosive conditions. The auto ignition temperature of natural gas fuel is around 800°F. Experience has shown that if the exhaust duct contains sufficient concentrations of captured gas fuel, and is not purged, it can ignite immediately during light off causing extensive damage to downstream equipment. The NFPA Boiler and Combustion Systems Hazards Code Committee have developed new procedures to safely provide for a fast-start capability. The change in the code was issued in the 2011 Edition of NFPA 85 and titled the Combustion Turbine Purge Credit. For a cycling plant and hot start conditions, implementation of purge credit can reduce normal start-to-load by 15–30 minutes. Part of the time saving is the reduction of the purge time itself, and the rest is faster ramp rates due to a higher initial temperature and pressure in the heat recovery steam generator (HRSG). This paper details the technical analysis and implementation of the NFPA purge credit recommendations on GE Power and Water aeroderivative gas turbines. This includes the hardware changes, triple block and double vent valve system (or drain for liquid fuels), and software changes that include monitoring and alarms managed by the control system.
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Yagihashi, Hiromitsu, Daisuke Nakata, Ryojiro Minato, Inaho Yoshikawa, Koki Arimatsu, and Masaharu Uchiumi. "Experimental Study of Temperature and Phase Transition of Liquid Oxygen at Ignition in Impinging Injector of Gas Generator." In ASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/ajkfluids2019-4935.
Abstract This paper describes the ignition transients of a LOX/ethanol gas generator that is used for a gas generator cycle air turbo ramjet engine. It is essential to know the temperature history of the LOX injector manifold in order to determine the appropriate ignition sequence. Following a chill-down process, an inert gas purge is performed prior to ignition. Once the main valve is opened, liquid oxygen is discharged after a short period of discharging gaseous oxygen. The period of the gas discharge is a critical parameter for the success of the ignition that is affected by the injector temperature at the time that the valve opens. As a result of the experiments, the gas discharge period was found to be in the range of 0.5–1.0 second, whereas the injector temperature when the valve was opened ranged from 120–170 K under various experimental conditions.
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Upreti, K. C., Amar Dev, T. V. Prasad, and B. Pundarikaksha. "Safety Issues With Reciprocating Compressor Design, Operating Practices and Maintenance." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-94533.
Reciprocating compressors are extensively used on high pressure and critical applications in all industries. These equipment needs through review of design of various components for a failsafe design. API-618 specifies various details about construction of various components, but due to OEM design by compressor vendor, proper review is not done or due to cost economic of equipment these are not given importance. There are many examples when accident took place when these issues were ignored or correct assembly procedure for assembly of components is not followed and there were mistakes in design of piping system. In this paper, some of such cases are discussed and improvements are suggested for preventing any safety incidents. The issues described are designs of unloaders and venting system, unloader and vent piping, cylinder tap off connections, end clearance pocket unloaders, distance piece and crank case venting system, purge system for motors. One of the risks with valve unloaders is the contamination of the instrument air with flammable gas specially on high pressure application. The instrument air may get contaminated with hydrocarbon if unloader leaking from stem and leak off gas tubing which is connected to flare may get interchanged with the instrument air connection. The same mistake if not noticed & compressor started, it may lead to the incident where compressor can show showed a strange vibration pattern, and instrument air header may get contaminated with hydrocarbon gases. Another issue is crank case pressurisation due to improper venting system which can lead to pressurisation of crank case, failure of oil seals leading to flywheel end bearing failures. Further checking for finding reasons of crank case pressurisation, it is observed that excessive rod packing leaks results from incorrect leveling of compressor, distance and cylinders. Motor purge system is one of the essential requirements for starting large reciprocating compressors; mistake in design/fabrication of vent system may create unsafe condition leading to explosion in motor. All issues have been discussed in paper and various solutions and fail safe design have been suggested to improve safety and reliability. The studies also indicates that proper start up procedure and follow up of correct checklists during overhauling and start up can eliminate/ identify such mistakes.
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Viswanathan, H., A. Awasthi, C. Ageorges, and M. Bohl. "Shock Waves in Canister Purge Valves." In Symposium on International Automotive Technology 2013. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2013. http://dx.doi.org/10.4271/2013-26-0040.
Qiu, Hua, Cha Xiong, and Chuan-Jun Yan. "The Thermodynamic Performance of Ideal Single-Tube Air-Breathing Pulse Detonation Engine." In ASME 8th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2006. http://dx.doi.org/10.1115/esda2006-95099.
A new single-tube air-breathing pulse detonation engine (APDE) with bypass air duct is introduced. It is composed of inlet, valve, detonation chamber, bypass air duct and nozzle. Based on the analysis of the operation cycle of the APDE, airstreams flowing into the engine can be separated into three parts: one is flowing out from the engine through the bypass; one is exhausted from the nozzle as purge gas; and the else is mixed with fuel and is combusted. And the concept of cycle factor α that represents the ratio of air quantity for detonation combustion to incoming air quantity is defined to analyze the influence of the mass distribution on the performance of APDE. Although α has no effect on the cycle thermal efficiency of APDE, it influences the engine propulsive performance. When the APDE is full fuel filled and with the equivalent incoming air-flow and fuel-flow rate, the APDE will be superior to ramjet for 0∼5 Mach if α is larger than 0.8. When the APDE and ramjet work with equal mass fuel-air ratio of combustion, the specific fuel consumption of APDE is lower than that of ramjet for 0∼5 Mach. Also, if a is higher than 0.9, the specific thrust of APDE is higher than ramjet for 0∼5 Mach. Further, the operation mode of partial fuel filling can be used to enhance the performance, but it simultaneously decreases the total thermal cycle efficiency.
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Sarwari, H., A. Schäfer, J. Schirmer, N. Schofer, M. Seiffert, Y. Schneeberger, S. Blankenberg, H. Reichenspurner, D. Westermann, and L. Conradi. "Transcatheter Aortic Valve Implantation for Pure Noncalcified Native Aortic Valve Regurgitation." In 49th Annual Meeting of the German Society for Thoracic and Cardiovascular Surgery. Georg Thieme Verlag KG, 2020. http://dx.doi.org/10.1055/s-0040-1705411.
VAN KATWIJK, C. Fisher Helium Purge Flow Control Valve and Relay. Office of Scientific and Technical Information (OSTI), July 2000. http://dx.doi.org/10.2172/804255.
MISKA, C. Fisher Helium Purge Flow Control Valve and Relay. Office of Scientific and Technical Information (OSTI), September 2000. http://dx.doi.org/10.2172/804824.
MISKA, C. R. Fisher Helium Purge Flow Control Valve and Relay. Office of Scientific and Technical Information (OSTI), September 2000. http://dx.doi.org/10.2172/804825.
VAN KATWIJK, C. Fisher Helium Purge Flow Control Valve and Relay. Office of Scientific and Technical Information (OSTI), July 1999. http://dx.doi.org/10.2172/797520.
MISKA, C. R. Check all SCHE Supply Purge Check Valves to Prevent Backflow from SCHE into Helium Supply. Office of Scientific and Technical Information (OSTI), September 2000. http://dx.doi.org/10.2172/804823.
MISKA, C. R. Check all SCHE Supply Purge Check Valves to Prevent Back Flow from SCHE into Helium Supply. Office of Scientific and Technical Information (OSTI), October 2000. http://dx.doi.org/10.2172/805405.
MISKA, C. R. Whitey Swagelok SCHe Ball Valves Provide Isolation between SCHe Purge Lines C and D and the Process Vent. Office of Scientific and Technical Information (OSTI), October 2000. http://dx.doi.org/10.2172/805408.
MISKA, C. R. Whitey Swagelok SCHe ball valves Provide Isolation between SCHe Purge Lines C and D and the Process Vent. Office of Scientific and Technical Information (OSTI), September 2000. http://dx.doi.org/10.2172/804831.
MISKA, C. R. Whitey Swagelok SCHe Ball Valves Provide Isolation between SCHe Purge Lines C and D and the Process Vent. Office of Scientific and Technical Information (OSTI), September 2000. http://dx.doi.org/10.2172/804832.
VAN KATWIJK, C. Whitey Swagelok SCHe Ball Valves Provide Isolation between SCHe Purge Lines C and D and the Process Vent. Office of Scientific and Technical Information (OSTI), August 1999. http://dx.doi.org/10.2172/797754.
