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Siting criteria for the microwave landing system (MLS): MLS/ILS collocation and runway hump shadowingDiBenedetto, Michael F. January 1988 (has links)
No description available.
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Examining the Relationship Between Salary, Performance and Individual Characteristics in Major League SoccerBjerkholt, Simon 01 January 2019 (has links)
Abstract
Using data from the 2017 Major League Soccer Season, this thesis investigates the relationship between salaries, individual player performance, nationality and previous career trajectory for player in the MLS. Through analysis of 6 model specifications, it is found that previous career trajectory, performance and nationality are all significant factors in salary determination. Further, it is concluded that the results of the model show that MLS franchises are in general allocating salaries efficiently relative to performance.
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An Investigation into the Properties of ML-NVE with Channel Estimation Error and Carrier Frequency Offset in OFDM SystemsChen, Hou-Lin 07 August 2009 (has links)
Noise variance estimator is very important in communication system which could control the transmission power and help system to reach the maximum capacity. But almost every kind of noise variance estimators assume that channel status is perfectly. Unfortunately the estimation error is always existence. This paper discuss that the maximum likelihood noise variance estimator (ML-NVE) in orthogonal frequency division multiplexing (OFDM) system with estimated channel. We take two kinds of the most popular channel estimation (CE) schemes Least Square (LS) and Modified-Least Square (MLS) as our consideration. And we investigate the situation that the ML-NVE suffered by carrier frequency offset (CFO) due to imperfect synchronization. As result we will show off the mean and variance of ML-NVE in those situations.
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Samverkan kring införande av miljöledningssystem i småföretagHederberg, Peter January 2005 (has links)
<p>Denna intervjubaserade kvalitativa fallstudie handlar om hur processen att införa miljöledningssystem (MLS) i en mindre företagsgrupp har fungerat. Studien innefattar fem företag med mellan tre och femton anställda som gemensamt infört MLS på sina företag enligt en nätverksmetod som kallas Hackeforsmodellen. Studiens syfte har varit att ta reda på vilka för- och nackdelar det inneburit att införa MLS i ett nätverk samt om samarbetet mellan företagen ökat efter införandet på andra områden än just MLS. Teorin har inhämtats från tidigare utförda studier kring liknande projekt. Intervjuerna genomfördes med miljöansvariga på respektive företag. Resultatet från studien visar att kostnaderna för att certifiera MLS blev överkomliga på grund av samarbetet i nätverket. Vidare såg företagen positivt på hur hela processen fungerade, och de var speciellt nöjda med att ha fått ordning och styrning på avfallshanteringen. Viss kritik framfördes mot revisorerna, som ansågs se storföretagsmässigt på MLS vid externrevisionerna. Dessutom framfördes viss kritik mot den omfattande dokumentation som krävs. Ett viktigt argument för att införa MLS var att öka antalet kunder, men någon sådan ökning har företagen i studien ännu inte kunnat se. Företagen har inte ökat samarbetet på andra områden än just kring MLS i och med införandet av MLS.</p>
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Samverkan kring införande av miljöledningssystem i småföretagHederberg, Peter January 2005 (has links)
Denna intervjubaserade kvalitativa fallstudie handlar om hur processen att införa miljöledningssystem (MLS) i en mindre företagsgrupp har fungerat. Studien innefattar fem företag med mellan tre och femton anställda som gemensamt infört MLS på sina företag enligt en nätverksmetod som kallas Hackeforsmodellen. Studiens syfte har varit att ta reda på vilka för- och nackdelar det inneburit att införa MLS i ett nätverk samt om samarbetet mellan företagen ökat efter införandet på andra områden än just MLS. Teorin har inhämtats från tidigare utförda studier kring liknande projekt. Intervjuerna genomfördes med miljöansvariga på respektive företag. Resultatet från studien visar att kostnaderna för att certifiera MLS blev överkomliga på grund av samarbetet i nätverket. Vidare såg företagen positivt på hur hela processen fungerade, och de var speciellt nöjda med att ha fått ordning och styrning på avfallshanteringen. Viss kritik framfördes mot revisorerna, som ansågs se storföretagsmässigt på MLS vid externrevisionerna. Dessutom framfördes viss kritik mot den omfattande dokumentation som krävs. Ett viktigt argument för att införa MLS var att öka antalet kunder, men någon sådan ökning har företagen i studien ännu inte kunnat se. Företagen har inte ökat samarbetet på andra områden än just kring MLS i och med införandet av MLS.
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Analysis and evaluation of the Lincoln laboratory MLS computer modelHassan, Shahrulzaman January 1983 (has links)
No description available.
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Development of an enzymatic method for the determination of cholesterol in food systemsSteiner, Peggy Hartz January 1978 (has links)
No description available.
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Microphthalmia with linear skin defects syndrome (MLS): a male with a mosaic paracentric inversion of XpKutsche, Kerstin, Werner, Walter, Bartsch, Oliver, von der Wense, Axel, Meinecke, Peter, Gal, Andreas 20 March 2014 (has links) (PDF)
The microphthalmia with linear skin defects syndrome (MLS) is an X-linked dominant disorder with male lethality. In the majority of the patients reported, the MLS syndrome is caused by segmental monosomy of the Xp22.3 region. To date, five male patients with MLS and 46,XX karyotype (“XX males”) have been described. Here we report on the first male case with MLS and an XY complement. The patient showed agenesis of the corpus callosum, histiocytoid cardiomyopathy, and lactic acidosis but no microphthalmia, and carried a mosaic subtle inversion of the short arm of the X chromosome in 15% of his peripheral blood lymphocytes, 46,Y,inv(X)(p22.13∼22.2p22.32∼22.33)[49]/46,XY[271]. By fluorescence in situ hybridization (FISH), we showed that YAC 225H10 spans the breakpoint in Xp22.3. End-sequencing and database analysis revealed a YAC insert of at least 416 kb containing the genes HCCS and AMELX, and exons 2–16 of ARHGAP6. Molecular cytogenetic data suggest that the Xp22.3 inversion breakpoint is located in intron 1 of ARHGAP6, the gene encoding the Rho GTPase activating protein 6. Future molecular studies in karyotypically normal female MLS patients to detect submicroscopic rearrangements including the ARHGAP6 gene as well as mutation screening of ARHGAP6 in patients with no obvious chromosomal rearrangements will clarify the role of this gene in MLS syndrome. / Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
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Etude du colmatage des systèmes carburant de turboréacteurs par des suspensions denses de particules de glace / Clogging of jet-engine fuel systems by dense suspensions of ice particlesMarechal, Ewen 28 January 2016 (has links)
Dans certaines conditions de température et de débit, l’eau naturellement présente dans le kérosène va givrer l’intérieur des conduites du système carburant avion. Ces dépôts peuvent libérer des particules de glace qui sont entrainées par l’écoulement, et provoquent le colmatage des équipements hydrauliques situés en aval. Ce phénomène fut mis en évidence suite à l’accident d’un Boeing 777 en 2008, aussi sa compréhension est un enjeu important pour les acteurs de l’industrie aéronautique. Un dispositif a été spécialement conçu pour reproduire cette menace de façon quantifiée. De l’eau est atomisée dans un écoulement à basse température, puis cristallise pour former une suspension qui vient colmater différentes cibles perforées. Les températures, débits et pertes de charge sont mesurées, et le phénomène est filmé par une caméra haute fréquence. Un modèle a été réalisé à partir de cesobservations, complétées par des données issues de la littérature et de retoursd’expérience. Pour la phase fluide, les équations de Navier-Stokes incompressibles sont résolues par une approche volumes finis. Le couplage pression-vitesse est obtenu par l’algorithme SIMPLE et l’ordre élevé au moyen de la méthode MLS. La phase solide est simulée par éléments discrets. L’interaction fluide-particules repose sur une approche de type milieu poreux. Un code CFD-DEM parallèle a été développé, et les premières simulations d’écoulement en milieu granulaire sont en bon agrément avec des résultats expérimentaux. / Water, which exists naturally in jet-engine fuel, may freeze within theaircraft fuel pipes under certain temperatures and flow rates. The ice particles released by these deposits are entrained by the flow, and clog the hydraulics downstream. The understanding of this phenomenon, highlighted by the crash of a Boeing 777 in 2008, is an important issue for the aviation industry. Therefore a device has been designed to reproduce this threat in a controlled and quantified way. Water is atomized in low temperature jet-engine fuel and the droplets crystallize. The resulting slurry clogs different kinds of perforated targets. Temperatures, flow rates and pressure drops are monitored, and the phenomenon is filmed by a high frequency camera. A model was constructed based on these observations and data from literature and feedbacks. For the fluid phase, the incompressible Navier-Stokes equations are solved within a finite volume framework. The pressure-velocity coupling is achieved using the SIMPLE algorithm and high order of accuracy thanks to the MLS method. The solid phase is simulated using discrete elements. The fluid-particle interaction is based on a porous medium approach. A CFD-DEM parallel code has been developed to run the model. The first simulations of flow through granular media are in good agreement with experimental results.
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Recuperação de Eu(III) e U(VI) de efluentes aquosos utilizando a técnica de membranas líquidas suportadas (MLS) e macrocíclicos como agentes extratores / RECOVERY IONS Eu(III) AND U(VI) FROM AQUEOUS EFFLUENTS USING THE SUPPORTED LIQUID MEMBRANES (SLM) TECHNIQUE AND MACROCYCLICS AS EXTRACTOR AGENTSSantos, Jacinete Lima dos 17 October 2007 (has links)
Este trabalho apresenta um estudo sobre a síntese e caracterização de novos agentes extratores da família dos calixarenos, utilizados com a técnica de membranas líquido suportadas para recuperar íons Eu(III) e U(VI) de efluentes aquosos. Os novos agentes extratores, os n-acetatocalix[n]arenos ( n= 4, 6 e 8), foram obtidos a partir da reação de acetilação dos p-terc-butilcalix[n]arenos (n = 4, 6 e 8) com anidrido acético e caracterizados por: análise elementar de CHN, espectroscopia vibracional na região do infravermelho, espectroscopia de absorção na região do UV-Vis, ressonância magnética nuclear RMN 1H, análise termogravimétrica e testes de solubilidade. Os compostos obtidos foram usados em estudos de distribuição líquido-líquido e também na técnica de membranas líquido suportadas (MLS), utilizando suportes poliméricos de 0,45, 1,2 e 5 m. A partir dos resultados da análise de caracterização verificou-se a funcionalização dos calixarenos. Tanto os calixarenos não funcionalizados quanto os funcionalizados mostraram-se bastante efetivos para extração de íons Eu(III) e U(VI). Da análise dos resultados concluiu-se que: a eficiência de extração é dependente do pH. Para íons Eu(III) a máxima eficiência de extração foi alcançada em pH 4 e 5 e para o U(VI) em pH 7. Os solventes utilizados, tolueno e clorofórmio, mostraram-se bastante eficazes no processo de extração já que os dois tiveram eficiência de extração bastante próxima. Nos estudos de extração utilizando a técnica de membranas líquido suportadas (MLS) os resultados mostraram que a permeação dos íons Eu(III) e U(VI) é dependente do pH, da concentração dos metais e da concentração de NaNO3 na solução de alimentação, da porosidade da membrana e da concentração do HNO3 na solução de reversão. / This work presents a study about the synthesis and characterization of new extractor agents of the calixarenes family, used with the supported liquid membranes technique to recovery Eu(III) and U(VI) ions from aqueous effluents. The new extractor agents, n-acetatecalix[n]arenes (n = 4, 6 e 8), were obtained through acetylating reaction of the p-terc-butilcalix[n]arenes (n = 4, 6 e 8) with acetic anhydride and characterized for: elementary analysis of CHN, infrared vibrational spectroscopy, UV-Vis absorption spectroscopy, NMR 1H nuclear magnetic resonance, thermal analysis and tests of solubility. The compounds obtained were used in liquid-liquid distribution studies and also supported liquid membranes technique (SLM), using PTFE polymeric supports with porous size equal to 0,45 m, 1,2 m and 5,00 m. Based on the results of characterization the functionalization of calixarenes were verified. So much the calixarenes fathers as the functionalized were shown effectiveness in the extraction of Eu(III) and U(VI) ions. Of the analysis of the results it was ended that: the extraction efficiency is dependent of the pH. The maximum extraction efficiency for Eu(III) ion was reached in pH 4 and 5 and in pH 7 for U(VI) ion. The solvents used toluene and chloroform, demonstrate to be quite effective in the extraction process since the two had efficiency of quite close in the results of extraction. In the studies using the supported liquid membrane technique (SLM) the results showed that the permeation of Eu(III) and U(VI) ions depends on: the pH, concentration of the metals and of the concentration of NaNO3 in the feeding solution, of the porosity of the membrane and concentration of HNO3 in the reversion solution.
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