Literatura académica sobre el tema "Lubr"

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Artículos de revistas sobre el tema "Lubr"

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Assaf, Joumana, Fadia Taher y Sylvie Magnier. "Theoretical description of the low-lying electronic states of LuBr located below 41,700 cm−1". Journal of Quantitative Spectroscopy and Radiative Transfer 189 (marzo de 2017): 421–27. http://dx.doi.org/10.1016/j.jqsrt.2016.12.018.

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Brunetie`re, Noe¨l. "A Modified Turbulence Model for Low Reynolds Numbers: Application to Hydrostatic Seals". Journal of Tribology 127, n.º 1 (1 de enero de 2005): 130–40. http://dx.doi.org/10.1115/1.1829721.

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A modification of the Elrod and Ng turbulence model is presented. The order of magnitude of the Reynolds number in thin lubricant films varies between 102 and 105. For Reynolds numbers higher than 103, the fluid flow becomes turbulent. It is well accepted in lubrication to use a zero-equation turbulence model of the type developed by Constantinescu (1962, ASME J. Basic Eng., 84(1), pp. 139–151), Ng (1964, ASLE Trans., 7, pp. 311–321), Ng and Pan (1965, ASME J. Basic Eng., 87, pp. 675–688), Elrod and Ng (1967, ASME J. Lubr. Technol., 89, pp. 346–362), or Hirs (1973, ASME J. Lubr. Technol., 95, pp. 137–146). The Elrod and Ng approach is certainly the most efficient for combined pressure and shear flows where the Reynolds number is above 104. This paper proposes a modification of the Elrod and Ng model in order to ensure a good correlation with experimental data obtained with low Reynolds number turbulent flows. The present model, coupled with a scaling factor for taking into account the transition to turbulence, is therefore accurate for all of the typical Reynolds number values recorded in lubrication. The model is then applied to hydrostatic noncontacting face seals, which usually operate at Reynolds numbers varying from 103 to 104. The accuracy of the model is shown for this particular application of radial rotating flow. A special study is made of the transition to turbulence. The results are compared with those obtained using the initial Elrod and Ng model. The axial stiffness coefficient and the stability threshold are significantly affected by the turbulence model.
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Deligoz, E., H. Ozisik, K. Colakoglu, G. Surucu y Y. O. Ciftci. "Mechanical and phonon properties of the superhard LuB2, LuB4, and LuB12 compounds". Journal of Alloys and Compounds 509, n.º 5 (febrero de 2011): 1711–15. http://dx.doi.org/10.1016/j.jallcom.2010.10.015.

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Keogh, P. S. y M. M. Khonsari. "Influence of Inlet Conditions on the Thermohydrodynamic State of a Fully Circumferentially Grooved Journal Bearing". Journal of Tribology 123, n.º 3 (6 de julio de 2000): 525–32. http://dx.doi.org/10.1115/1.1308029.

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A thermohydrodynamic (THD) analysis of a fully circumferentially grooved hydrodynamic bearing is presented. The pressure distribution is obtained using the short bearing approximation taking into account the viscosity variation in the radial and circumferential coordinates. The axial temperature variation is also included by an axial averaging technique, which incorporates the supply pressure and film entry temperature in the energy equation. It is found that the determination of the lubricant temperature at the entry to the film plays an important role in the overall temperature distribution in the bearing. A simplified approach for determining this temperature is presented. An extensive set of experimental results performed by Maki and Ezzat (1980, ASME J. Lubr. Technol., 102, pp. 8–14) is used for validation purposes. The results show that mixing in the inlet groove may cause the film entry temperature to be significantly different from the nominal supply temperature and hence have a significant influence on the bearing temperature.
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Górny, Halszka. "Imiona słowiańskie z członami lubo-, -lub, miło-, -mił w toponimii Polski". Słowo. Studia językoznawcze 10 (2019): 65–79. http://dx.doi.org/10.15584/slowo.2019.10.05.

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The article is devoted to toponyms motivated by Slavic compound names with adjective elements: lubo-, -lub, miło-, -mił. This topic is part of the research project called “Names as the Basis of Polish Geographical Names”, carried out at the Institute of the Polish Language at the Polish Academy of Sciences in Cracow. In a two-line analysis (on the antroponymic and toponymic level), enriched with cartographic illustrations, attention was focused on pointing out the chronology of personal names, productivity of the Slavic names in the process of nominating toponyms, and on highlighting the chronology, frequency, geography of oikonyms and their structural types. In over 60 place names created up to the end of the 16th century, and located mainly in Greater Poland, Silesia and Mazovia, 27 names with the above-mentioned elements were preserved. Among them are forms reconstructed from toponyms, such as: *Lubogost, *Lubomysł, *Lubowid, *Lubowit, *Nielub, *Miłobąd, *Miłodrog, *Miłorad, *Niemił. The younger layer of place names dated to the eighteenth and nineteenth centuries or introduced officially after 1945 occur mainly in the north and west of Poland.
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Taran, Anatoliy, Daniel Voronovich, Natalya Shitsevalova, Ganna Levchenko, Volodymyr Filipov y Sergiy Abashin. "Phase Transformations in Lutetium Borides at Heating in Vacuum". Solid State Phenomena 172-174 (junio de 2011): 464–69. http://dx.doi.org/10.4028/www.scientific.net/ssp.172-174.464.

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The LuB12 ® LuB4 ® LuB2 phase transformations on annealing in vacuum (T=(1400÷1800) K, p < 10-2 Pa) are investigated with use of the parent single crystals. SEM and X-ray researches of the corresponding lutetium boride single crystals were carried out before and after their annealing. It is shown that the LuB12 → LuB4 phase transformation takes place in surface layer and transition region spreads inwards the single crystal bulk with time. According to the assessed Lu-B phase diagram the LuB4 phase transformation into other individual phases is impossible, and at first it is shown that under corresponding conditions the LuB4 → LuB2 spontaneous phase transformation takes place both on the surface and in the LuB4 single crystal bulk.
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Pawlikowska, Marta. "Como preservar a memoria coa música – tradicións de Galicia e música de Luar na Lubre". Estudios Hispánicos 27 (29 de enero de 2020): 81–93. http://dx.doi.org/10.19195/2084-2546.27.8.

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How to preserve memory with music — Galician traditions and the music of Luar na LubreMusic has been and still is a basic medium through which mankind preserves its traditions, history and habits. Nowadays, oral traditions have different ways of spreading, for example, through the Internet, social media or music platforms, but they still need musicians and people who will create the content. Luar na Lubre is one of the most important Galician folk groups, which unites traditional Galician music with Celtic instruments but at the same time rooting it in medieval traditions of Galicia and combining it with Portuguese and Latin-American elements. Through the analysis of Luar na Lubreʼs releases from 2005 to 2012 it is possible to observe how the different parts of wide Galician patrimony unites in their music to help preserve it for new generations by recreating it.
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8

Srivastava, A. M., J. S. Vartuli, S. J. Duclos, P. A. Schmidt, S. B. Chaney y U. Happek. "Luminescence of Pr$^{3+}$ Doped LuCl$_3$ and LuBr$_3$ Under Intraconfigurational $(4{\rm f}^2 \rightarrow 4{\rm f}^1 5{\rm d}^1)$ and Band Gap Excitation". IEEE Transactions on Nuclear Science 56, n.º 3 (junio de 2009): 986–88. http://dx.doi.org/10.1109/tns.2009.2012707.

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Kane, Malal y Benyebka Bou-Said. "A Study of Roughness and Non-Newtonian Effects in Lubricated Contacts". Journal of Tribology 127, n.º 3 (13 de junio de 2005): 575–81. http://dx.doi.org/10.1115/1.1866169.

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This article is concerned with the simulation of a lubricated contact considering the fluid to be non-Newtonian of the Maxwell type. Severe operating conditions lead to very small surface-to-surface distances. In this situation it is necessary to take roughness effects into account. A popular method consists in averaging the film thickness following Patir and Cheng (ASME J. Lubr. Technol., 100, pp. 12–17, 1978), or more recently Wang et al. (Tribol. Trans., 45(1), pp. 1–10, 2000), with good reported results compared with experimental data. To overcome certain limitations that become apparent at very small film thickness, notably when the roughness is two-dimensional, in 1995 Jai (Math. Modell. Numer. Anal., 29(2), pp. 199–233, 1995) introduced a new technique based on a rigorous homogenization theory in the case of compressible fluid flow. This procedure was further mathematically developed by Buscaglia and Jai (Math. Probl. Eng., 7(4), pp. 355–377, 2001) and applied to tribological problems by Jai and Bou-Saı¨d (ASME J. Tribol., 124, pp. 327–355, 2002). In this paper, we propose a similar homogenized approach in the case of non-Newtonian fluids to avoid numerical problems which are often encountered in other approaches. Results in the homogenized roughness case are obtained and compared with direct numerical solutions.
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Griffiths, R., R. Jubb y C. G. H. Quass. "Non-Luer can become Luer". Anaesthesia 68, n.º 2 (9 de enero de 2013): 220–21. http://dx.doi.org/10.1111/anae.12142.

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Tesis sobre el tema "Lubr"

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Assaf, Joumana. "Étude théorique des molécules LuBr et LuI par les méthodes ab-initio". Thesis, Lille 1, 2014. http://www.theses.fr/2014LIL10070.

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Le travail de recherche présenté concerne l'étude théorique des molécules LuBr et LuI qui sont considérées comme des molécules d'intérêt astrophysique. Les calculs ont été effectués en utilisant les méthodes de chimie quantique usuelles pour ce type de molécules comme les méthodes Hartree-Fock Self-Consistent Field (SCF) , Complete Active Space Self-Consistent Field (CAS-SCF) et les méthodes d'interaction de configurations multi-référence (MRCI) avec la correction de Davidson. Pour cela, la chaîne de programmes MOLPRO a été utilisée. Les courbes d'énergie potentielle ont été déterminées pour un grand nombre d'états électroniques dans un premier temps sans considérer l'interaction spin-orbite puis en l'incluant. Les constantes spectroscopiques (position d'équilibre (Re), l'énergie d'excitation (Te) et la fréquence harmonique (we) ont été déduites et comparées aux rares résultats expérimentaux disponibles dans la littérature pour ces deux molécules
This work concerns the theoretical study of the electronic structure of two molecules of astrophysical interest, LuBr and LuI. Ab-initio methods have been used as Self-Consistent Field (SCF) method, Complete Active Space Self-Consistent Field (CAS-SCF) method and MRCI calculations including Davidson correction. Calculations have been performed through MOLPRO. Potential energy curves have been determined for numerous electronic states first without the spin-orbit coupling and afterwards with this interaction. Spectroscopic constants as equilibrium position (Re), excitation energy (Te) and harmonic frequency (we) have been deduced and compared with available experimental data for these two molecules
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Faini, Marie Annette. "Transcriptional Control during Quorum Sensing by LuxR and LuxR Homologues". Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/31994.

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Quorum sensing is a mechanism used by many proteobacteria to regulate expression of target genes in a population-dependent manner. The quorum sensing system of Vibrio fischeri activates the luminescence (lux) operon when the autoinducer signaling molecule (N-3-oxohexanoyl homoserine lactone) is recognized and bound by the activator protein LuxR. LuxR subsequently binds to the lux box centered at à 42.5 bp upstream of the transcription initiation site and activates transcription from the lux operon promoter, resulting in the emission of light at high cell densities. LuxR consists of 250 amino acids arranged into an N-terminal (regulatory) domain and a C-terminal (activation) domain, and is thought to function as an ambidextrous activator capable of making multiple contacts with the alpha and sigma subunits of RNA polymerase (RNAP). Published work describing the results of alanine scanning mutagenesis performed on the C-terminal domain of LuxR (residues 190-250) has identified residues (K198, W201 and I206) that appear to play a role in positive control of transcription initiation. Additional mutagenesis of residues 180-189 has been undertaken via a three-primer or four-primer PCR-based method in this study. Variants of LuxR were screened for their ability to activate luciferase production and to repress transcription from an artificial promoter, and production of full-length LuxR was measured, in an attempt to identify additional positive control variants. No additional positive control variants were found in this study. Work has also been undertaken to identify intergenic suppressors between positive control variants of LuxR and the RNAP alpha subunit, RpoA. Starting with a recombinant Escherichia coli strain encoding the lux operon and LuxR variant I206E, a random chemical mutagenesis was performed on a vector encoding RpoA. Following transformation of the mutated plasmids encoding RpoA, high throughput luminescence assays were used to identify isolates with phenotypes brighter than the control. Isolation of an intergenic suppressor will confirm the existence of protein-protein interactions between LuxR and RpoA within the transcription initiation complex. The ability of other LuxR family members to establish productive protein-protein interactions with RNAP necessary for transcription initiation was also examined. LuxR homologues EsaR of Pantoea stewarti ssp. stewartii, a repressor of known function, and ExpR of Erwinia carotovora subsp. carotovora were also analyzed for their ability to activate the lux operon, as well as to repress transcription from an artificial promoter containing the lux box.
Master of Science
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3

Martínez, M. Cristián, C. Christián Méndez y P. Esteban Díaz. "Bio-Lube lubricantes ecológicos". Tesis, Universidad de Chile, 2004. http://www.repositorio.uchile.cl/handle/2250/113699.

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Tesis para optar al grado de Magíster en Administración
1.1 Oportunidad del Negocio El fuerte crecimiento del rubro industrial forestal en la última década (cerca del 30%), provocado en parte por un aumento en las exportaciones de madera, ha llevado a las empresas a realizar fuertes inversiones en automatización y mecanización de los procesos productivos, para conseguir ser más eficientes y por lo tanto competitivos con el resto del mundo. Este crecimiento y las inversiones realizadas han traído consigo serios problemas de contaminación ambiental, lo cual dentro de las políticas de gobierno y las exigencias de los mercados de destino de los productos madereros, han provocado que las empresas introduzcan fuertes cambios para solucionar los problemas ambientales modificando o sustituyendo aditivos o productos por otros que permitan que los procesos productivos sean más limpios. Entre los problemas que actualmente enfrentan todas las empresas del rubro aserraderos y plantas de remanufacturas, existe el de los derrames producidos por el uso de aceites derivados de hidrocarburos en la lubricación de equipos y cadenas. Para solucionar este problema es que nace como una necesidad Bio-Lube Ltda., empresa fabricante y comercializadora de aceites de origen vegetal para ser usados como lubricantes de cadena y otras aplicaciones de procesos productivos forestales, cuyo producto Bio-Chain WR, soluciona el problema de contaminación, al ser un producto 100% biodegradable y con un precio producto-rendimiento de menor valor que los biodegrables que se ofrecen actualmente en el mercado y muy competitivo con respecto a los derivados de hidrocarburos que se utilizan aún. 1.2 Modelo de Negocio Nuestra empresa ofrecerá el producto Bio-Chain WR, el cual ha sido formulado sobre la base de aceites vegetales (aceite de canola) y aditivos biodegradables, cuya composición se mantiene en reserva de sus dueños. El producto se comercializará en formato de tambores de 208 lts., mismo formato que utilizan las compañías competidoras. El precio de venta del producto será de $2100 + IVA, el cual es similar a los lubricantes base hidrocarburos y muy por debajo de las alternativas biodegradables (30 a 40% menos). El potencial de mercado para el producto Bio-Chain WR es de 280 tambores/mes considerando sólo las regiones VII, VIII y IX, que es donde se concentra el 85% del mercado. Bio-Lube Ltda., espera conseguir como objetivos de venta alcanzar el 5% (14 tambores/mes) del mercado en su primer año (a partir del segundo semestre), para luego aumentar en un 15% (42 tambores/mes) en el segundo año y para lograr desde el tercer al quinto años una participación del 25% (70 tambores/mes). La estrategia de comercialización contempla una etapa de introducción del producto al mercado, para lo cual se espera visitar en una primera etapa a los clientes de mayor nivel de consumo ofreciendo una prueba del producto sin costo, si esta no cumple las exigencias de calidad y rendimiento del cliente. Se estima que el tiempo para introducir el producto al mercado será de 3 a 4 meses. Adicionalmente, se realizará una campaña de marketing para fortalecer las cualidades del producto y la empresa. La estrategia de marketing se desarrollará en dos ámbitos: Imagen corporativa y de la marca; para lo cual se cuenta con un programa de actividades y presupuesto por año. En una primera etapa la estrategia será de marketing directo, fuerte en relaciones interpersonales, hacia las empresas. Aquí los ejecutivos de ventas se dirigen hacia los clientes. En la segunda etapa se realizará un marketing más indirecto y masivo con la utilización de medios tradicionales de publicidad. Lubricantes Ecológicos Bio-Lube Ltda. Parque Industrial S/N, Lota, VIII Región www.biolube.cl 3 1.3 Equipo y modelo organizacional El equipo ejecutivo de Bio-Lube Ltda. está compuesto por el Sr. Esteban Díaz, Gerente General, Ingeniero Comercial, con una gran red de contactos en la zona y con 10 años de experiencia en el sector financiero; Sr. Christian Méndez, Gerente Técnico y apoyo ventas, Ingeniero Civil Químico, con 10 años de experiencia en el sector forestal, desarrollando su carrera en producción, ingeniería y proyectos en empresas del rubro. Sr. Cristian Martínez, Gerente Comercial y apoyo ventas, Ing. Civil Industrial, con 8 años de experiencia en comercialización de lubricantes y asesorías en lubricación para el sector forestal e industrial. Adicionalmente, se contempla la contratación de dos personas para el área producción, bodega y despachos. 1.4 Proyecciones Financieras El valor de la empresa Bio-Lube Ltda. es de $140.994.352 millones y ha sido calculada en base a los flujos de caja de los primeros 5 años. La tasa de descuento utilizada para la evaluación es de un 30%, considerando una tasa por capitales de riesgo. La tasa interna de retorno es de un 88.64% y la inversión se recupera en los primeros 3 años. 1.5 Propuesta a los Inversionistas A continuación, se desglosa el capital requerido para la realización del proyecto Bio-Lube, el cual está compuesto por activo fijo y capital de trabajo.
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Miller, Thomas C. (Thomas Charles). "Characterization of lube oil derived diesel engine particulate emission rate vs. lube oil consumption". Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/28171.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1996, and Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1996.
Includes bibliographical references (p. 103-104).
by Thomas C. Miller.
M.S.
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Bezerra, Diogo Henrique Duarte. "Luar-X: extens?o e generaliza??o do sistema de processamento de modelos luar". PROGRAMA DE P?S-GRADUA??O EM ENGENHARIA EL?TRICA E DE COMPUTA??O, 2016. https://repositorio.ufrn.br/jspui/handle/123456789/21944.

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Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES)
O sistema de processamento de modelos Luar, utilizado na autoria de documentos NCL, possui conceitos de desenvolvimento baseados no re?so de descri??es por meio de modelos de documentos. Esses conceitos de desenvolvimento podem ser utilizados na autoria de outros documentos baseados em XML por meio da an?lise, adequa??o, projeto e cria??o de uma nova infraestrutura de re?so baseada no sistema Luar. Esta tese apresenta o sistema de processamento de modelos Luar-X, uma generaliza??o e extens?o do sistema de modelos Luar. O Luar-X mant?m os conceitos de desenvolvimento do sistema Luar e modifica, adequa e estende a arquitetura do sistema Luar para permitir o desenvolvimento com linguagens baseadas em XML. Os estudos de caso com as linguagens HTML, SVG e NCL mostram a viabilidade dessa nova infraestrutura de re?so que torna o desenvolvimento de aplica??es e a descri??o de documentos XML ?gil.
The Luar template processing system used in authoring NCL documents, has development concepts based on reuse of descriptions through document templates. These development concepts can be used in the authorship of other XML-based documents through the analysis, adequacy, design and creation of a new reuse infrastructure based on Luar system. This view shows the processing system of models Luar-X, a generalization and extension Luar model system. The Luar-X keeps the concepts of development of Luar system and he changes, adapts and extends the Luar system architecture to enable development with XML-based languages. The case studies with HTML, SVG and NCL show the feasibility of this new reuse infrastructure, which makes application development and description of agile XML documents.
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Kalonji, M. T. Zezeze. "Sémiotique de la lexicographie bilingue en Afrique francophone : le cas Français-Ciluba : (problématique, analyse des dictionnaires et préalables pour un modèle minimal fonctionnalisé)". Paris 13, 1987. http://www.theses.fr/1987PA131022.

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Ce travail consiste a: - poser la problematique generale de la lexicographie bilingue en afrique francophone, a travers le cas francais-ciluba. Par la, c'est le dictionnaire qui est "re-situe" dans ses origines, ses multiples sous-entendus ideologiques, et ses presupposes sociologiques: c'est une sorte d'exploration des fondements du discours lexicographique en milieu africain franco-lubaphone. - analyser l'ensemble des dictionnaires et lexiques bilingues existants aussi bien dans leur conception que dans leur presentation macro- et microstructu- relle, afin d'en determiner, par le jeu de comparaison avec les dictionnaires monolingues, la fonctionnalite linguistique et culturelle, mais surtout pour nous approprier, en consequence, les techniques diverses de la lexicographie. - presenter une approche morpho-lexicale du "mot" en "ciluba", unite graphique pour le texte lexicographique, mais dont les aspects phonologiques, morphologi- ques et morpho-semantiques doivent etre degages aux fins d'une analyse lexico- - semantique efficace du lexique luba ou de la traduction interlinguistique. - elaborer, en conclusion, les prealables theoriques pour un modele de diction- naire bilingue fonctionnalise. Ces prealables etant inspires de l'ensemble de la problematique et de l'analyse des dictionnaires bilingues, ils fournissent les elements theoriques pour la conception et l'elaboration de dictionnaires en milieu francophone d'afrique. Ces prealables sont suivis en illustration d'un traitement lexicographique d'un corpus de nomenclature. De cette maniere, c'est non seulement une etude intrinsequement linguistique qui est menee, mais une approche multidimensionnelle du fait lexicographique francais-luba et vice-versa. Il est nettement apparu que pour etre efficiente, une etude qui vise non seulement la comprehension interne du fait lexicographique bilingue en afrique, mais aussi la composition de nouveaux dictionnaires, devait s'appuyer sur des donnees objectives de la sociologie des locuteurs franco-lubaphones, leur typologie ainsi que leurs besoins approximatifs
The aim of this study is: - to set up a general "problematique" of the bilingual lexicography in franco- phone africa, through the french-ciluba case study. The dictionary is so re- placed in its origins, its various ideological understatements, its sociolo- gical preables: which means to explore the fundamentals of the lexicographic discourse in an african franco-lubaphone context. - to analyse the whole range of the existing bilingual dictionaries and lexi- cons , their elaboration as well as their macro- and microstructural shapa, in order to define their linguistic and cultural functionality in comparison with the monolingual dictionaries, and above all to get acquainted with the various lexicographic techniques. - to display a morpho-lexical analysis of the "word" in ciluba language, a graphic unit for the lexicographic text, but the phonological, morphological and morpho-semantical aspects of which have to be isolated for an efficient lexical and semantical analysis of the luba lexicon or the interlinguistic translation. - to conclude in, with the theorical preables for a functionalized model of the bilingual dictionary. As these preables are based on the "problemati- que" and the study the bilingual dictionaries, they provide for the theori- cal elements for the building of dictionaries in the francophone african context. Following the preables is, as an illustration, a lexicographic pro- cessing of a sample of the "nomenclature"
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Kalonji, M. T. Zezeze. "Sémiotique de la lexicographie bilingue en Afrique francophone le cas français-ciluba : problématique, analyse des dictionnaires et préalables pour un modèle minimal fonctionnalisé /". Lille 3 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37606354k.

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Gesemann, Sebastian [Verfasser], Gert [Akademischer Betreuer] Lube, Gert [Gutachter] Lube y Marcus [Gutachter] Baum. "Optimizations of Optical Flow Measurement Systems / Sebastian Gesemann ; Gutachter: Gert Lube, Marcus Baum ; Betreuer: Gert Lube". Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2018. http://d-nb.info/1169912346/34.

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Ramzan, Zulfikar Amin 1975. "A study of Luby-Rackoff ciphers". Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/86580.

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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2001.
Includes bibliographical references (p. 188-200).
by Zulfikar Amin Ramzan.
Ph.D.
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Collins, Cynthia Hollie Parker Carl Stevens. "Directed evolution of the transcriptional activator LuxR /". Diss., Pasadena, Calif. : Caltech, 2006. http://resolver.caltech.edu/CaltechETD:etd-12272005-160649.

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Libros sobre el tema "Lubr"

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1945-, Roberts Allen F., ed. Luba. New York: Rosen Pub. Group, 1997.

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Goldberg, Jacqueline. Luba. Maracaibo: Séptimo Sello Editorial, 1988.

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Luba. Alexandria, VA: Alexander Street Press, 2004.

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1945-, Roberts Allen F., ed. Luba. Milan, Italy: 5 Continents Editions, 2007.

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Lem, Stanisław. Lube czasy. Kraków: Wydawn. Znak, 1995.

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Ledbury, Ron. LUBA citator. Editado por Oregon Land Use Board of Appeals. Portland, OR: Northwest Law Pub. Co., 1992.

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Macleod, Don. Lube Jobs. New York: Penguin Group USA, Inc., 2008.

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Gómez, Natalia. Lur. Madrid: Torremozas Ediciones, 2004.

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N, Masuri S. Di luar dugaan. Kuala Lumpur: Dewan Bahasa dan Pustaka, 1999.

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Roque, Carlos Paradona Rufino. Gestação do luar. [Maputo?]: C.P.R. Roque, 1991.

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Capítulos de libros sobre el tema "Lubr"

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Davis, Ali. "Lube Warning". En Never Threaten to Eat Your Co-Workers: Best of Blogs, 9–11. Berkeley, CA: Apress, 2004. http://dx.doi.org/10.1007/978-1-4302-0678-1_3.

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Leung, Alexander K. C., William Lane M. Robson, Carsten Büning, Johann Ockenga, Janine Büttner, Hartmut Schmidt, Antonio V. Delgado-Escueta et al. "Lubs Syndrome". En Encyclopedia of Molecular Mechanisms of Disease, 1213. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-29676-8_6705.

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Nachef, Valerie, Jacques Patarin y Emmanuel Volte. "Luby-Rackoff Theorems". En Feistel Ciphers, 45–53. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-49530-9_4.

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Haas, Peter J. "Karp-Luby Sampling". En Encyclopedia of Database Systems, 1–2. New York, NY: Springer New York, 2016. http://dx.doi.org/10.1007/978-1-4899-7993-3_80765-1.

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Krishna, Kamala R. y Guan-dao Lei. "Lube Isomerization Dewaxing". En Encyclopedia of Lubricants and Lubrication, 1048–53. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-22647-2_315.

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Knudsen, Lars R. "Luby-Rackoff Ciphers". En Encyclopedia of Cryptography and Security, 736–37. Boston, MA: Springer US, 2011. http://dx.doi.org/10.1007/978-1-4419-5906-5_590.

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Haas, Peter J. "Karp-Luby Sampling". En Encyclopedia of Database Systems, 2054–55. New York, NY: Springer New York, 2018. http://dx.doi.org/10.1007/978-1-4614-8265-9_80765.

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Kman, Nick y Leslie Adrian. "LVAD Woes: Lub-Dub, Lub-Dub, Lub-Dub…or Maybe Not!" En Case Studies in Emergency Medicine, 351–65. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-22445-5_35.

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Beasley, Brent E. "Conventional Lube Base Stock". En Springer Handbook of Petroleum Technology, 957–1013. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-49347-3_33.

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Maesen, Theo, Guan-Dao Lei, Jay Rogers y Kamala R. Krishna. "Lube Hydrotreating and Hydrocracking". En Encyclopedia of Lubricants and Lubrication, 1042–47. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-22647-2_314.

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Actas de conferencias sobre el tema "Lubr"

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Bezerra, Diogo Henrique Duarte, Denio Mariz Timóteo Sousa, Guido Lemos de Souza Filho, Aquiles Medeiros Filgueira Burlamaqui y Igor Rosberg Medeiros Silva. "Luar". En the 18th Brazilian symposium. New York, New York, USA: ACM Press, 2012. http://dx.doi.org/10.1145/2382636.2382718.

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"LUAR 2005 Workshop". En 2005 International Conference on Cyberworlds (CW'05). IEEE, 2005. http://dx.doi.org/10.1109/cw.2005.60.

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Costiou, Steven, Mickaël Kerboeuf, Glenn Cavarlé y Alain Plantec. "Lub". En IWST'16: International Workshop on Smalltalk Technologies. New York, NY, USA: ACM, 2016. http://dx.doi.org/10.1145/2991041.2991054.

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Wall, Robert. "Auto Lube System - Installation, Start-up, Maintenance and Lube Consumption". En International Truck & Bus Meeting & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1992. http://dx.doi.org/10.4271/922461.

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Graham, N. A. "By-Pass Lube Oil Filtration". En SAE International Congress and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1986. http://dx.doi.org/10.4271/860547.

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Junaedi, Achmad. "Learning From Success Mixing Different Brands of Turbomachinery Lube Oil ISO VG32 at Badak LNG Plant Bontang". En ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-75628.

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Badak LNG Plant Bontang have succeeded in mixing different brands of turbomachinery lube oil ISO VG32 which intended to increase flexibility of lube oil usage and eliminate to one brand dependency during operational. The methodology referred to ASTM D7155 Standard Practice for Evaluating Compatibility of Mixtures of Turbine Lubricating Oils and ASTM D4378 Standard Practice for In-Service Monitoring of Mineral Turbine Oils for Steam, Gas and Combined Cycle Turbines. The study was started from lube oil compatibility test at laboratory. After that, a ratio 70:30 of ISO VG32 existing lube oil (DTE Light) and new lube oil (Turbolube XT32) were mixed and trialed to Fuel Gas Compressor and its Turbine Driver. Lube oil and equipment operating parameter such as viscosity, color, water content, total acid number, foaming tendency, oxidation, metal content, flash point, bearing temperature, filter differential pressure, and vibration were collected and compared to baseline data to analyze deterioration indication of lube oil. As long as eight month trial test, there was no deterioration indication of lube oil mixture and no significant influence to the equipment operating performance. Badak LNG have decided to continue lube oil mixing.
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Zhang, Hedong, Yasunaga Mitsuya, Natsuko Fukuoka y Kenji Fukuzawa. "Spreading Characteristics of Monolayer Lubricant Film on Surfaces With Lube Textures". En STLE/ASME 2003 International Joint Tribology Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/2003-trib-341.

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In this paper, from the viewpoint of lubricant spreading, we investigate the effect of lube textures which mean a nonuniform distribution of bonding strength between lubricant molecules and the disk surface. Lube textures were formed by irradiating ultraviolet rays through a stripe-patterned mask onto a magnetic disk surface which was partially coated with one-monolayer film of perfluoropolyether. Surface characteristics of the lube textures were evaluated by surface energies ascertained from contact angle measurements. Spreading of the lubricant film was measured by scanning microellipsometry on the striped lube textures in the directions parallel and perpendicular to the stripes. The thickness-dependent diffusion coefficients extracted from the spreading profiles show that lubricant spreading in the regime of film thickness less than 0.2 nm is faster along the stripes, indicating the possibility of controlling the behavior of a lubricant film with lube textures.
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Rui Cao y Liuqing Yang. "The Design of Decomposed Luby Transform Codes". En 2011 IEEE Global Communications Conference (GLOBECOM 2011). IEEE, 2011. http://dx.doi.org/10.1109/glocom.2011.6134475.

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Kenney, Thomas B. "Smart Lube Systems for Gas Turbine Engines". En 2012 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/icone20-power2012-55111.

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Presently, the typical gas turbine based power generator relies on a large, expensive skid system to provide lubrication to the bearings. These skids consist of a large number of expensive components, many of which require maintenance that drives operating cost and creates environmental hazards. A smart lube system based on recently developed technology enables dramatic simplification and cost reduction of the skid system and significantly reduces oil consumption along with the frequency and cost of maintenance. Such a system would take advantage of the availability of advanced pump system controls and fluid nozzle technology to drastically reduce the quantity of oil required, and the resultant heat rejection. As a result, the sizes of reservoir, cooler, filter and piping are greatly reduced. The cost of components, support equipment and maintenance activities will also be reduced to a fraction of their present values.
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Higgins, Paul D. y John T. Crow. "Advances in Commercial Engine Lube Debris Monitoring". En SAE Airframe/Engine Maintenance and Repair Conference and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1997. http://dx.doi.org/10.4271/972603.

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Informes sobre el tema "Lubr"

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Olsen, Luedeman y Lanham. PR-179-13201-R01 Cylinder Wall Lubrication for Power Cylinder Timed Lube Oil Injection. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), octubre de 2014. http://dx.doi.org/10.55274/r0010032.

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A retrofit lube oil injection system is designed with the capability of injecting oil through two lube ports on each cylinder at any time during the engine cycle. The system is installed and tested on a Cooper-Bessemer GMV4 engine. Variations in number of skip cycles, average lube rate, and injection timing are evaluated. Lube oil carry-over is quantified using a dilution tunnel and a standard particulate matter gravimetric measurement technique. Cylinder wall lubrication is quantified using a custom designed fixture that is inserted into the fuel valve port between data points when the engine is shut down. The best lube oil carry-over results for nominal lube rate are obtained by injecting every fourth cycle and injection timing roughly corresponding to the time the piston rings pass the lube ports during expansion.
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Eric S. Peterson, Jessica Trudeau, Bill Cleary, Michael Hackett y William A. Greene. A Membrane Process for Recycling Die Lube from Wastewater Solutions. Office of Scientific and Technical Information (OSTI), abril de 2003. http://dx.doi.org/10.2172/911428.

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Peterson, E. S., J. Trudeau, B. Cleary, M. Hackett y W. A. Greene. A Membrane Process for Recycling Die Lube from Wastewater Solutions. Office of Scientific and Technical Information (OSTI), abril de 2003. http://dx.doi.org/10.2172/817489.

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Froelund, Kent, Edwin C. Owens, Janet P. Buckingham y Edwin A. Frame. Impact of Lube Oil on Advanced Light-Duty CIDI Engine Emissions. Fort Belvoir, VA: Defense Technical Information Center, julio de 2000. http://dx.doi.org/10.21236/ada392297.

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Olsen y Stevens. PR-179-14202-R01 Field Evaluation of Timed Power Cylinder Lube Oil Injection. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), abril de 2016. http://dx.doi.org/10.55274/r0010906.

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A timed lube oil injection system was developed for a field engine to improve power cylinder lubrication. The injection system used advanced prototype electronic injectors. The system was installed on a Cooper GMVA-10 located in West Virginia. A total of four cylinders were included in the study, two for the timed system and two for the baseline mechanical system. Cylinder wall lubrication, cylinder wear, piston wear, and ring wear tests were planned for various engine run times. The prototype timed lube oil system operated essentially until the prototype injector end-of-life was reached at about 1,200 hours. The project was discontinued because of injector issues and the site required a high level availability of the engine for gas compression.
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Luedeman y Olsen. PR-179-12200-R01 Power Cylinder Timed Lube Oil Injection to Reduce Consumption and Catalyst Fouling. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), abril de 2013. http://dx.doi.org/10.55274/r0010807.

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This project is driven by concerns over excessive cylinder lubrication in large bore two-stroke natural gas engines (LBNGE). Excessive cylinder lubrication can lead to: - Increased operating costs due to high lubricating oil consumption. - Poisoning of catalytic converters. - Increased pollutant emissions. Development of an electronically-controlled, power-cylinder lubricator (ECPCL) is a likely solution that could decrease excessive cylinder lubrication. This lubricator would optimize cylinder lubrication by controlling both the injection rate and injection timing, relative to piston position.
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Nadera, Made y Rofi Uddarojat. Esensi Pengalaman Migras - 23 purna Tenaga Kerja Indonesia (TKI) menceritakan pengalaman di luar negeri yang membentuk keterampilan berwirausaha. Jakarta, Indonesia: Center for Indonesian Policy Studies, 2017. http://dx.doi.org/10.35497/270459.

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Jebrail, F. F. y R. S. Kistler. L51753 Natural Draft Aerial Coolers. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), enero de 1996. http://dx.doi.org/10.55274/r0010422.

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In recent years, environmental regulations have tightened and community involvement in environmental issues has increased. The pipeline industry has responded by attempting to reduce the negative economic and environmental impact of conventional air-cooled heat exchangers, which are characterized by high noise levels, excessive energy consumption, and high maintenance costs. While industry has had limited success in reducing air cooler noise using silencers and timed variable-speed fans, these solutions are costly. The most effective noise reduction method is to reduce or eliminate noise at its source. The primary goals of this investigation were to address key technical issues and to document natural draft aerial cooler (NDAC) design knowledge. The following objectives were identified: - Form a project team from PRCI-recommended aerial cooler manufacturers to design a quiet aerial cooler - Conduct technical and economic analyses to determine the actual operating needs and constraints of NDACs - Conduct market analyses to evaluate and identify the marketing issues associated with NDACs - Document the results of the project in a final report In recent years, the number of environmental permits mandating the use of natural draft aerial coolers to reduce noise has increased. Natural draft aerial cooler technology can potentially eliminate noise and improve operational energy efficiency. A broad group of applications could benefit from this technology, including natural gas, engine jacket water, auxiliary water, and engine lube oil cooling. With noise regulations and penalties becoming increasingly stringent, natural draft heat transfer technology is becoming more important. No organization has as yet fully investigated it. The technical and economic feasibility of NDACs were investigated for natural gas, engine jacket water, auxiliary water, and lube oil cooler applications.
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Setiawan, Yusuf, Ahmad Choirul Furqon, Yanwar Yanwar, Yuniarti Tri Suwadji y Muhyiddin Muhyiddin. Peta Jalan Penempatan dan Perlindungan Pekerja Migran Indonesia. Pusat Pengembangan Kebijakan Ketenagakerjaan Kementerian Ketenagakerjaan, enero de 2023. http://dx.doi.org/10.47198/pwp.v1i1-01.

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Permasalahan yang sering dihadapi oleh Pekerja Migran Indonesia (PMI) yakni overstay, gaji tidak dibayar, sakit, ingin dipulangkan, penipuan peluang kerja, putus hubungan komunikasi, gagal berangkat, meninggal dunia di negara tujuan, dan perdagangan manusia. Selain itu terdapat juga permasalahan dalam pengiriman PMI ke luar negeri karena belum disertainya sistem penempatan dan perlindungan yang kuat. Penyusunan road map atau peta jalan bertujuan untuk mengetahui bagaimana upaya dan kebijakan pemerintah dalam memberikan jaminan perlindungan terhadap pekerja migran Indonesia. Dalam menyelesaikan berbagai permasalahan ini, perlu dibentuk tim strategis yang nantinya dapat menjadi satuan khusus dalam upaya percepatan implementasi road map atau peta jalan yang telah disusun. Tim khusus dari Kementerian Ketenagakerjaan memiliki tugas dan fungsi sebagai eksekutor action plant.
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Rimpel, Aaron y Amy McCleney. PR-316-17200-R02 A Study of the Effects of Liquid Contamination on Seal Performance. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), julio de 2020. http://dx.doi.org/10.55274/r0011734.

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Liquid contamination in dry gas seals (DGS) can come from a variety of sources, including lube oil carryover and liquid dropout, due to the Joule-Thompson effect across the seal faces, which can cause DGS failure. The physical effect of liquids on DGS performance is a topic of limited understanding, and conflicting theories exist regarding liquid-induced failure mechanisms. While tests have been performed on DGS test rigs (primarily by seal OEMs), very little testing or analysis has been specifically aimed at studying the heat generation behind DGS behavior following liquid injection, and test results or conclusions have not been published for use in the industry. Therefore, this study develops a test rig and presents test results of a DGS in dry nitrogen at different supply pressures up to 1,000 psi, then intentionally introduce a liquid (light oil, up to ~3% liquid mass fraction) to measure any difference in performance that might indicate a possible failure mechanism. It was found that continuous injection of oil caused a distinct 2-8% increase in torque but no significant effect on seal temperature for the brief durations tested. In contrast, multiphase CFD predictions predicted generally higher torque values, in nitrogen only and with similar levels of oil injection than experiments, and a 3-6% increase in stationary ring temperatures. To the authors' knowledge, the CFD modeling approach used is a first of its kind for trying to study liquid contamination effects in a DGS, and further work is proposed to improve comparisons to the test data. This is research performed by the Gas Machinery Research Council with cofunding by PRCI.
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