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Littérature scientifique sur le sujet « Column injection »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 31 juillet 2025

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Articles de revues sur le sujet "Column injection"

Wylie, Philip, and Katsura Uchiyama. "Improved Gas Chromatographic Analysisof Organophosphorus Pesticides with Pulsed Splitless Injectiony." Journal of AOAC INTERNATIONAL 79, no. 2 (1996): 571–78. http://dx.doi.org/10.1093/jaoac/79.2.571.

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Abstract Gas chromatographic (GC) analysis of 6 organo-phosphorus pesticides (methamidophos, acephate, omethoate, diazinon, dimethoate, and chlorpyrifos) was performed with cool on-column, splitless, and pulsed splitless injections and with nitrogen–phos phorus or mass-selective detection. The pulsed splitless technique uses a high column flow rate during injection to sweep the sample out of the inlet rapidly, reducing analyte loss due to adsorption or thermal decomposition. After injection, the column flow rate is automatically reduced to normal values for chromatographic analysis. Pesticide

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Hopper, Marvin L. "Analysis of Organochlorine Pesticide Residues Using Simultaneous Injection of Two Capillary Columns with Electron Capture and Electrolytic Conductivity Detectors." Journal of AOAC INTERNATIONAL 74, no. 6 (1991): 974–81. http://dx.doi.org/10.1093/jaoac/74.6.974.

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Abstract A system has been developed that will allow low level screening of 31 organochlorine pesticide residues using simultaneous injection on 2 dissimilar capillary columns. An electron capture detector was attached to a DB-1701 column, and an electrolytic conductivity detector in the halogen mode was attached to a DB-5 column. Chlorinated pesticide amounts ranging from 0.05 ng for γ-BHC to 1.5 ng for decamethrin can easily be quantitated and confirmed. The system can be used in either the column programmed mode or the isothermal column mode. Good reproducibility was obtained for injections

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Watanabe, Chuichi, and Keiji Hashimoto. "Direct injection of large sample volumes into capillary columns with packed column injector." Journal of High Resolution Chromatography 13, no. 9 (1990): 610–13. http://dx.doi.org/10.1002/jhrc.1240130905.

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Gong, Ya-Nan, Qi-Yu Ma, Ying Wang, et al. "Preparation of Chiral Porous Organic Cage Clicked Chiral Stationary Phase for HPLC Enantioseparation." Molecules 28, no. 7 (2023): 3235. http://dx.doi.org/10.3390/molecules28073235.

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Porous organic cages (POCs) are a new subclass of porous materials, which are constructed from discrete cage molecules with permanent cavities via weak intermolecular forces. In this study, a novel chiral stationary phase (CSP) has been prepared by chemically binding a [4 + 6]-type chiral POC (C120H96N12O4) with thiol-functionalized silica gel using a thiol-ene click reaction and applied to HPLC separations. The column packed with this CSP presented good separation capability for chiral compounds and positional isomers. Thirteen racemates have been enantioseparated on this column, including al

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Ma, R., and Yan Xiao. "Seismic Retrofit and Repair of Circular Bridge Columns with Advanced Composite Materials." Earthquake Spectra 15, no. 4 (1999): 747–64. http://dx.doi.org/10.1193/1.1586070.

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Experimental studies on seismic retrofit and repair of typical circular bridge columns with poor lap splice details utilizing prefabricated glass fiber reinforced polymer (FRP) composite jackets and epoxy are presented in this paper. A total of seven tests on three 1/2-scale model columns were conducted. One column was tested under “as-built” condition and the other two columns were retrofitted with prefabricated composite individual and continuous jackets respectively. The jackets were applied in the potential plastic hinge region of the column to increase its lateral confinement. Brittle fai

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Irfan, Hafeez* Muhammad Azam Zahid Mahmood Athar Amin Muhammad Aamir Adnan Akram. "RAPID ESTIMATION OF PHOSPHOLIPED BY IMMOBILIZED PHOSPHOLIPASE D FROM PISTACHIA KHINJUK IN FIA SYSTEM." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 3 (2017): 356–62. https://doi.org/10.5281/zenodo.400976.

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Blue green gains of Pistachia khinjuk was collected from area of Harnai Balochistan and crude Phospholipase D was isolated by simple protean precipitation. This enzyme was covalently bounded on the surface of controlled porosity glass beads and packed in small glass columns. Immobilized PLD was used for quantitative determination of Phosphatidylcholine (Lecithin) and Phosphorylcholine in flow-injection analysis system. Immobilized columns of Phospholipase C from rice and Choline oxidase from chicken intestine were also prepared in same manner. The phosphatidylcholine was estimated by incorpora

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Kehr, Ján, and Mikuláš Chavko. "Protection, efficiency, and some practical aspects of use of CGC columns in high performance liquid chromatography." Collection of Czechoslovak Chemical Communications 51, no. 10 (1986): 2091–97. http://dx.doi.org/10.1135/cccc19862091.

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Some practical adaptations of compact glass cartridge (CGC) columns and design of related components of the high-performance liquid chromatographic system are suggested; included are the design of a Teflon guard column and its filling procedure, an intra-column sample injector for on-column sample delivery or for injection into the precolumn, replacement of a contaminated packing or replenishment of packing at the top of the CGC column, a procedure for shortening the column to a desired length, and the possibility of thermostatting the column by means of a water jacket. These adaptations make

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Parfitt, Charles H. "Wide-Bore Capillary Gas Chromatographic Determination of Organophosphorus Pesticide Residues in Foods: Interlaboratory Trial." Journal of AOAC INTERNATIONAL 77, no. 1 (1994): 92–101. http://dx.doi.org/10.1093/jaoac/77.1.92.

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Abstract Wide-Bore capillary columns are often used as alternatives to traditionally packed columns for gas chromatographic (GC) determination of pesticide residues in foods. Fused silica columns with cross-linked, bonded stationary phases are reproducible, rugged, and easy to use and are substantially more inert than their packed column equivalents. An interlaboratory trial was conducted in 5 U.S. Food and Drug Administration laboratories to determine the practicability of using isothermal wide-bore capillary GC as an alternative to the packed column GC systems used in AOAC Official Methods f

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Dadonova, Anna, Ivan Yakoviv, and Valerii Kozlovskiy. "Method of protection of database management systems against sql-identifier injection attacks." Science-based technologies 52, no. 4 (2021): 305–12. http://dx.doi.org/10.18372/2310-5461.52.16385.

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The article reviews SQL injection and SQL identifier injection attacks in database management systems, identifies their nature, the threats they pose, and the types of these attacks. A new method of protecting database management systems from SQL identifier injection attacks is also covered. Proposed solution are functions that can be added to the prepared API statements: setColumnName: uses the column name and its index as arguments and setTableName: uses the table name and its index as arguments. This method allows you to prepare operators to fill placeholders with table and column names, pr

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Santos, Natalia G. P., Deyber A. V. Medina, and Fernando M. Lanças. "Development of Wall-Coated Open Tubular Columns and Their Application to Nano Liquid Chromatography Coupled to Tandem Mass Spectrometry." Molecules 28, no. 13 (2023): 5103. http://dx.doi.org/10.3390/molecules28135103.

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This work presents a study on the application of wall open tubular column (WCOT) in liquid chromatography coupled with tandem mass spectrometry. Each process step reports the column preparation method in detail, subdivided into column pretreatment, silanization, stationary phase coating, and immobilization. Then, an evaluation of the parameters that can affect the efficiency of these columns was made. Atrazine, clomazone, and metolachlor were used as probes during this step. Factors such as stationary phase composition, length, internal diameter, stationary phase mass employed, and injection v

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Thèses sur le sujet "Column injection"

Ramirez, Coterio Viviana A. "Optimization of Air-injection Spargers for Column Flotation Applications." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/71425.

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Column flotation cells have become the most popular machine designed for industrial applications that require the separation and concentration of wanted or unwanted minerals from the rest material associated in a pulp. To achieve this process separation an air sparging device, which is required to produce bubbles in the flotation cell is required. In column flotation operations, Sparger sparging devices are employed in column flotation operations to generate small bubbles into the cell with the aim to carry the the desired mineral to the surface for later be recovered and proceeded. However,

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Actkinson, John Ira. "Minesweeping for pressure actuated mines by air injection into a water column." Thesis, Monterey, California. Naval Postgraduate School, 2011. http://hdl.handle.net/10945/5493.

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Approved for public release; distribution is unlimited. The U.S. Navy historically has not had an adequate means to remotely pressure-sweep for mines at reasonable speeds and cost, and this is still the case. The Navy has addressed such threats, but countermeasures are time consuming and considered to be very resource intensive. During this thesis two sets of data were collected in tow tank experiments using two different sizes of Bubble Squid apparatus. This thesis is a continuation of work already completed by Lieutenant Jeffery Murawski from December 2009. This continuation was able

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Bonariol, Francesco. "Sizing of a packed stripping tower for seawater injection process and H2S abatement on an FPSO." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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The purpose of this working thesis is to study and analyze in depth the sea water injection unit found upon an FPSO. In particular, attention is focused on the vacuum deaeration column used for the degasification of the seawater stream in two stages: the first, with a lower vacuum degree and the second with a higher vacuum degree. Moreover, this thesis studies the mass transfer operation, carrying out a profound dissertation of the mass transport phenomena, introducing the mass transfer equations and coefficients. This study has been developed because it is desired to size another stripp

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MacFarlane, John K., and Philip M. Gschwend. "Field analysis of groundwater for volatile organic contaminants using on-column aqueous injection capillary gas chromatography." MIT Energy Lab, 1987. http://hdl.handle.net/1721.1/18198.

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Northeast Utilities Service Company, Southern California Edison Company, Empire State Electric Energy Research Corporation, American Power Service Company, Standard Oil Company and New England Power Service Company under the MIT Energy Laboratory Utilites Program

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Schneider, Mark S. "Analysis of Organic Pollutants by Micro Scale Liquid-Liquid Extraction and On-column Large Volume Injection Gas Chromatography." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/46329.

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The analysis of organic pollutants in water is traditionally done following EPA procedures which commonly use liquid-liquid extraction. One liter of water is extracted three times with 60 mL of an organic solvent. The extract is concentrated and analyzed by gas chromatography. This procedure is time consuming and can cause losses of semi-volatile components, in addition to requiring a relatively large amount of organic solvent (180 mL). By performing the extraction directly in a GC autosampler vial using one milliliter of contaminated water and one milliliter of organic solvent, then inject

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HASEGAWA, Takuya, Tomonari UMEMURA, Akira KOIDE, et al. "Evaluation of an ODS Column Modified with Zwitterionic/Nonionic Mixed Surfactants and Its Application to Direct Injection Determination of Inorganic Anions." 日本分析化学会, 2005. http://hdl.handle.net/2237/8754.

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Yenco, Aileen C. "Decision Tree for Ground Improvement in Transportation Applications." University of Akron / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1384435786.

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Urio, Ricardo De Prá. "Desenvolvimento e avaliação de métodos de extração e separação cromatográfica em colunas monolíticas e superficialmente porosas para determinação de herbicidas triazínicos em solos e águas." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/46/46136/tde-05042016-103159/.

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O uso de pesticidas levou ao aumento da produtividade e qualidade dos produtos agrícolas, porém o seu uso acarreta na intoxicação dos seres vivos pela ingestão gradativa de seus resíduos que contaminam o solo, a água e os alimentos. Dessa forma, há a necessidade do monitoramento constante de suas concentrações nos compartimentos ambientais. Para isto, busca-se o desenvolvimento de métodos de extração e enriquecimento de forma rápida, com baixo custo, gerando um baixo volume de resíduos, contribuindo com a química verde. Dentre estes métodos destacam-se a extração por banho de ultrassom e a ext

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Manivannan, Sivaprasath. "Measuring permeability vs depth in the unlined section of a wellbore using the descent of a fluid column made of two distinct fluids : inversion workflow, laboratory & in-situ tests." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLX086/document.

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Dans les puits de production d’eau, de pétrole, de gaz et de chaleur géothermique, ou dans les puits d’accès à un stockage d’hydrocarbures, il est précieux de connaître la perméabilité de la formation ou de sa couverture en fonction de la profondeur, soit pour améliorer le modèle de réservoir, soit pour choisir les zones dans lesquelles procéder à des opérations spéciales.On propose une technique qui consiste à balayer la hauteur du découvert par une interface entre deux liquides de viscosités très contrastées. Le débit total qui pénètre la formation à chaque instant est ainsi une fonction de

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CARDOSO, VALBERT N. "Estudos farmacocineticos do sup131I-steviosideo e seus metabolitos." reponame:Repositório Institucional do IPEN, 1993. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10342.

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Made available in DSpace on 2014-10-09T12:37:34Z (GMT). No. of bitstreams: 0 Made available in DSpace on 2014-10-09T14:03:32Z (GMT). No. of bitstreams: 1 05177.pdf: 1071515 bytes, checksum: 549d323670762fe6597fcda6cf7ea4fc (MD5) Tese (Doutoramento) IPEN/T Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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Livres sur le sujet "Column injection"

Grob, Konrad. On-column injection in capillary gas chromatography: Basic technique, retention gaps, solvent effects. 2nd ed. Hüthig, 1991.

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Grob, Konrad. On-column injection in capillary gas chromatography: Basic technique, retention gaps, solvent effects. Hüthig, 1987.

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Shilyaev, Mihail, Elena Hromova, Aleksandr Bogomolov, A. Pavlenko, and V. Butov. Modeling of hydrodynamics and heat and mass transfer in dispersed media. INFRA-M Academic Publishing LLC., 2022. http://dx.doi.org/10.12737/1865376.

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The monograph presents methods for calculating the dehydration of wet granular materials in industrial centrifuges, filter presses and vacuum filters under the influence of gravitational forces, as well as by purging the granular layer with dry air with elevated temperature; physical and mathematical models of gas absorption and the theory of capturing submicron dust by condensation in foam, centrifugal bubbling apparatus and hollow nozzle scrubbers, packing columns and tubular absorbers; physical and mathematical models of dry adsorption of gases in packing columns and flues by injecting a di

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Grob, Konrad. On-Column Injection in Capillary Gas Chromatography: Basic Technique, Retention Gaps, Solvent Effects, 2nd Edition. John Wiley & Sons, 1998.

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Gofeld, Michael. Lumbar Transforaminal and Nerve Root Injections: Ultrasound. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199908004.003.0017.

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Ultrasound (US) guidance has gained recognition in the field of regional anesthesia mainly because of its definite advantage of visually localizing the desired target and also due to perceived benefits of safety, accuracy, and efficiency when peripheral nerve blocks are performed. On the contrary, ultrasonography of the spinal structures may be challenging because of depth, bony acoustic shadowing, and complex three-dimensional anatomy. Nevertheless, US allows satisfactory imaging of the posterior elements of spine column and paraspinal soft tissues. This makes US applicable and practical in t

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van Eerd, Maarten, Arno Lataster, and Maarten van Kleef. Cervical Facet Nerve Block and Radio Frequency Ablation: Fluoroscopy. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199908004.003.0007.

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In the cervical spinal column local anesthetic can be injected intra-articularly or adjacent to the ramus medialis (medial branch) of the ramus dorsalis of the segmental nerve. Nerve blocks of the ramus medialis are preferred to an intra-articular block, because it is sometimes technically difficult to position a needle into the facet joint. These procedures are typically performed under fluoroscopy, but there are increasing numbers of studies that describe these procedures with the help of ultrasound. Reports regarding the effects of intra-articular (steroid) injections are limited. There are

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Gutzeit, Joerg. Crude Unit Corrosion Guide. 3rd ed. NACE International, The Worldwide Corrosion Authority15835 Park Ten Place Houston, TX 77084, 2016. https://doi.org/10.5006/37612.

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This Guide was written for Plant Operators, Process Engineers, Metallurgists, Maintenance Engineers, Inspectors, and all others who deal with crude unit corrosion and fouling issues on a daily basis. The book is based on the author’s experience dealing with many crude units and also reflects the industry’s consensus experiences reported at past meetings of the former NACE STG34 Committee on Petroleum Refining and Gas Processing and the API Subcommittee on Corrosion and Materials. Diluent recovery units (DRUs) and vacuum distillation units (VDUs) of bitumen upgraders are now included in the dis

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Shaibani, Aziz. Pseudoneurologic Syndromes. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190661304.003.0022.

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The term functional has almost replaced psychogenic in the neuromuscular literature for two reasons. It implies a disturbance of function, not structural damage; therefore, it defies laboratory testing such as MRIS, electromyography (EMG), and nerve conduction study (NCS). It is convenient to draw a parallel to the patients between migraine and brain tumors, as both cause headache, but brain MRI is negative in the former without minimizing the suffering of the patient. It is a “software” and not a “hardware” problem. It avoids irritating the patient by misunderstanding the word psychogenic whi

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Chapitres de livres sur le sujet "Column injection"

Wang, Fangjun. "Online Sample Injection and Multidimensional Chromatography Separation by Using Strong-Cation Exchange Monolithic Column." In Springer Theses. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-42008-5_2.

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Mattiasson, Bo, and M. P. Nandakumar. "Binding assays in heterogeneous media using a flow injection system with an expanded micro-bed adsorption column." In Expanded Bed Chromatography. Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-017-1519-5_26.

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Facciorusso, Antonio, and Nicola Muscatiello. "Submucosal Injection Solutions for Colon Polypectomy." In Colon Polypectomy. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-59457-6_7.

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Nilson, Robert H., Stewart K. Griffiths, and Anup K. Singh. "Injection of Sample Bands from open Channels Into Packed Separation Columns." In Micro Total Analysis Systems 2002. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0295-0_32.

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Gupta, Sunil. "Find Column Names." In SQL Injection Attacks. Apress, 2020. http://dx.doi.org/10.1007/978-1-4842-6505-5_10.

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Huang H.B., Su Hao, Chen H.Y., and Mills J.K. "Piezoelectric Driven Non-toxic Injector for Automated Cell Manipulation." In Studies in Health Technology and Informatics. IOS Press, 2011. https://doi.org/10.3233/978-1-60750-706-2-231.

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Stimulated by state-of-the-art robotic and computer technology, Intra Cytoplasmic Sperm Injection (ICSI) automation aims to scale and seamlessly transfer the human hand movements into more precise and fast movements of the micro manipulator. Piezo-drill cell injection, a novel technique using piezo-driven pipettes with a very small mercury column, has significantly improves the survival rates of ICSI process. It is found that complications are due, in large part, to toxicity of mercury and the damage to the cell membrane because of the lateral tip oscillations of injector pipette. In this pape

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Indrayanto, Gunawan, and Mochammad Yuwono. "On-Column Injection for GC." In Encyclopedia of Chromatography, Third Edition (Print Version). CRC Press, 2009. http://dx.doi.org/10.1201/noe1420084597.ch314.

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Yuwono, Mochammad, and Gunawan Indrayanto. "On-Column Injection for GC." In Encyclopedia of Chromatography. CRC Press, 2005. http://dx.doi.org/10.1201/noe0824727857-241.

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Indrayanto, Gunawan, and Mochammad Yuwono. "On-Column Injection for GC." In Encyclopedia of Chromatography, Second Edition. CRC Press, 2005. http://dx.doi.org/10.1201/noe0824727857.ch241.

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Huang, Haibo, Hao Su, and Changhai Ru. "Design and Evaluation of a Piezo-Driven Ultrasonic Cell Injector." In Prototyping of Robotic Systems. IGI Global, 2012. http://dx.doi.org/10.4018/978-1-4666-0176-5.ch011.

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In this chapter, a novel piezo-driven cell injection system for automatic batch injection of suspended cells is presented; it has simplified operational procedure and better performance than the previous ones. Specifically, this new piezo-driven cell injector design has three aspects of merits: 1) by centralizing the piezo oscillation energy on the injector pipette, it eliminates the vibration amplitude of other parts of the micromanipulator; 2) meanwhile, a small piezo stack is sufficient to perform the cell injection process; and 3) detrimental lateral tip oscillations of the injector pipett

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Actes de conférences sur le sujet "Column injection"

Al-Omari, Ahmad S., Ahmed M. Al-Zahrani, Graham R. Lobley, Robin D. Tems, and Olavo C. Dias. "Refinery Caustic Injection Systems: Design, Operation, and Case Studies." In CORROSION 2008. NACE International, 2008. https://doi.org/10.5006/c2008-08551.

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Abstract Caustic injection is used to reduce refinery crude-column-overhead hydrochloric acid corrosion. Such injection systems are considered to be critical equipment because failures can potentially have catastrophic results. Accordingly, it is necessary to rigorously design caustic injection systems to assure correctness and reliable performance. A series of case studies is presented to demonstrate the advantages and disadvantages of different designs and materials that have been used. Failures encountered in caustic injection systems are also discussed. This paper draws on refinery experie

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Soundararajan, Sudharsanan. "Troubleshooting of Main Fractionator Overhead Corrosion in Condensate Splitting Unit Using Ionic Equilibria Modelling." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-19325.

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Abstract In a Refinery Condensate Splitting Unit, the lighter Feed hydrocarbon is distillated into Liquified Petroleum Gas, Naphtha, Kerosene, Light & Heavy Gas Oil and Atmospheric Residue. Operating philosophy of this unit is similar to that of Crude Distillation unit but without a desalter. The Pre-flash Column has two stage overhead system, and the Main Fractionator column has Single stage overhead system. Perennial corrosion was experienced in the Main fractionator Overhead fin fan cooler tubes in the form of thinning/pitting due to HCl & Amine/Ammonium chloride salt corrosion. Ion

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O’Kane, J. M., T. F. Rudd, D. Cooke, F. W. H. Dean, and S. W. Powell. "Detection and Monitoring of Naphthenic Acid Corrosion in a Visbreaker Unit Using Hydrogen Flux Measurements." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10351.

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Abstract Corrosion rates of up to 0.8 mm/per month were detected on a Visbreaker fractionation column. Internal examination of the column showed that the shell corrosion was confined to the vicinity of four trays situated approximately two thirds of the way up the column, with the highest rates being seen within the downcomers. Examination of the corroded areas within the downcomers indicated the presence of smooth, uniform zones of metal loss characteristic of organic acid corrosion. Further analyses of both the internal deposits and sections of shell plate taken from the areas of high corros

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Scanlan, Rob, Ricardo Valbuena, Dave Hughes, and Dannie Clarida. "Determination of Corrosion Mechanism for a Water Wash Injection Point Failure in a Saturate Gas Plant." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07575.

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Abstract An explosion and fire occurred at the Humber Refinery on April 16th 2001, following the failure of a 6-inch overhead pipe from a De-ethanizer column in the Saturate Gas Plant. Investigation revealed that the failure of the pipe was due to internal corrosion associated with a water wash injection location that had not been identified by the refinery pipework inspection regime. This paper describes the chain of events that led to the failure, as well as determining the corrosion mechanism of the failure, which was not known at the time. The corrosion mechanism was determined to be acidi

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Cowe, Bruce, Hervé Marchebois, Maalek Mohamed-Said, and James Foong. "Unusual Corrosion of Well Tubulars and Casings in Sour Gas Lift Well Annuli – Causes and Mitigations." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17772.

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Abstract Gas lift, utilizing the injection of high-pressure gas via well production annuli and into the production bore through mandrels or valves, is a common artificial lift method in oil wells. Unexpected corrosion located in the annuli below the gas-lift valve was observed on several well completions and led to an investigation of its causes and deployment of alternative mitigation measures. The aggressiveness of the corrosion seen is not in line with industry experiences and prompted a need to better understand contributory factors. Unlike the often traditionally held belief that corrosio

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Lobanov, P. D., O. N. Kashinsky, A. S. Kurdyumov, and N. A. Pribaturin. "Dynamic Processes During Pulsed Gas Injection Into Liquid Column." In 2016 24th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/icone24-60615.

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An experimental study of dynamic processes during pulsed gas injection into quiescent liquids was performed. Both water and low melting temperature metal alloy were used as test liquids. Air and argon were used as gas phase. The test sections were vertical cylindrical columns 25 and 68 mm inner diameter. Measurements of flow parameters during gas injection were performed. Water – air experiments were performed at room temperature, the temperature of liquid metal alloy was 135 deg C. Time records of pressure in the liquid and in gas phase above the liquid were obtained. Measurements of liquid t

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Ishii, Eiji, Motoyuki Abe, Hideharu Ehara, and Tohru Ishikawa. "Short Spray-Penetration for Direct Injection Gasoline-Engines With Numerical Simulation." In ASME 2013 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icef2013-19026.

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Direct injection gasoline-engines have both better engine power and fuel efficiency than port injection gasoline-engines. However, direct injection gasoline-engines also emit more particulate matter (PM) than port injection gasoline-engines do. To decrease PM, fuel injectors with short spray-penetration are required. More effective fuel injectors can be preliminarily designed by numerically simulating fuel spray. We previously developed a fuel-spray simulation. Both the fuel flow within the flow paths of an injector and the liquid column at the injector outlet were simulated by using a grid me

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Kwon, T. S., B. J. Yun, C. H. Song, K. Y. Choi, and H. K. Cho. "Effect of ECC Injection Angle on the Flow Distribution in a Downcomer Annulus During LBLOCA Reflood Phase in the Air-Water Test." In 10th International Conference on Nuclear Engineering. ASMEDC, 2002. http://dx.doi.org/10.1115/icone10-22388.

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The comparison tests for the direct ECC bypass fraction were experimentally performed with a typical DVI nozzle and an ECC column nozzle having injection angle to the gravity axis. The ECC column nozzle is newly introduced to make an ECC water column in the downcomer region. The injection angle of the ECC water relative to the gravity axis is varied from 0 to ±90 degrees stepped by 45 degrees. The tests are performed in the air-water separate effect test facility (DIVA), which is 1/7.07 linearly scaled-down of the APR1400 nuclear reactor. The test results show that the direct ECC bypass fracti

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Das, Mayukh, Devendra Singh Dhami, Yang Yu, Gautam Kunapuli, and Sriraam Natarajan. "Human-Guided Learning of Column Networks: Knowledge Injection for Relational Deep Learning." In CODS COMAD 2021: 8th ACM IKDD CODS and 26th COMAD. ACM, 2020. http://dx.doi.org/10.1145/3430984.3431018.

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Bhattacharyya, Manjusha, Ritu Kanadri, and Ashwnikumar. "An Enhanced zero-bias column buffer -direct-injection circuit using 180nm Cmos Technology." In 2019 4th International Conference on Internet of Things: Smart Innovation and Usages (IoT-SIU). IEEE, 2019. http://dx.doi.org/10.1109/iot-siu.2019.8777613.

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Rapports d'organisations sur le sujet "Column injection"

Wills, R. A., and P. Coles. Evaluation of a subsurface oxygenation technique using colloidal gas aphron injections into packed column reactors. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/10137545.

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Bartram, Phillip W., Michael J. Lochner, Dennis K. Rohrbaugh, and Michael W. Ellzy. Decomposition of GD on CeO2/Alumina Adsorbents in a Gas Chromatograph On-Column Injector Tube Reactor. Defense Technical Information Center, 2006. http://dx.doi.org/10.21236/ada457384.

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