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Дисертації з теми "Neutral fraction"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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1

Norman, andrew J. "Measurement of the branching fraction for neutral kaon(long) decaying to muon-electron-positron." W&M ScholarWorks, 2004. https://scholarworks.wm.edu/etd/1539623447.

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This dissertation describes the measurement of the decay of the long lived neutral kaon into two muons and two electrons. The measurement was performed using the data taken during experiment E871 which was performed on the B5 beamline at the Alternating Gradient Synchrotron (AGS) of the Brookhaven National Laboratory (BNL). The branching ratio B( K0L → mu+mu-e +e-) is sensitive to the absorptive portion of the long distance amplitude for decays of the form K0L → &ell;+&ell;- and can be used to properly extract the short distance weak interaction amplitudes from the dileptonic events.;Meas

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2

Redjimi, Radia. "Absolute branching fraction measurements and electron spectrum of inclusive charged and neutral D meson semileptonic decays." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2005. http://wwwlib.umi.com/cr/syr/main.

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3

Spradlin, Patrick Michael. "Measurements of the branching fraction, CP asymmetry and isospin asymmetry of the radiative penguin deca [neutral B meson decays to neutral kaon(0) resonance] and a search for the decays [B meson decays to rho photon] and [neutral B meson decays to omega photon] at BABAR /." Diss., Digital Dissertations Database. Restricted to UC campuses, 2005. http://uclibs.org/PID/11984.

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4

Moss, Joshua J. "Measurement of the branching fraction for the decay neutral kaon(long) going to pion-antipion-positron-electron in the high M(pi-pi) invariant mass region." W&M ScholarWorks, 2007. https://scholarworks.wm.edu/etd/1539623516.

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A measurement of the branching fraction for the rare decay K0L → pi+pi-e +e- was performed using data collected from experiment E871 which ran at the AGS of Brookhaven National Laboratory. Analysis of the data revealed 27.7 +/- 7.4 signal events in the signal region, 0.4905 GeV < Mpipiee < 0.505 GeV together with 13.3 +/- 3.7 background events. The branching fractions of ( 8.5+/-2.3stat +/-1.0sys ) x 10-6 using the phenomenological model acceptance and ( 2.3+/-0.6stat +/-0.3sys ) x 10-6 using the chiral perturbation model represent the first measurements for K0L → pi+pi-e +e- in the d

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5

Khalil, Sadia. "Measurement of the branching fraction of D+ meson going to muon+ neutrino and the pseudoscalar decay constant fD+ using the full psi'' sample and search for neutral D meson going to proton-electron and neutral D meson going to antiproton-positron." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2009. http://wwwlib.umi.com/cr/syr/main.

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6

Yamanaka, Masao. "Effective Delayed Neutron Fraction in Subcritical States." 京都大学 (Kyoto University), 2017. http://hdl.handle.net/2433/225708.

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7

Gomes, Rodrigo Reis. "Simulações de problemas inversos com aplicações em engenharia nuclear usando técnicas de transporte de partículas neutras monoenergéticas na formulação unidimensional de ordenadas discretas." Universidade do Estado do Rio de Janeiro, 2012. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=3812.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Neste trabalho, três técnicas para resolver numericamente problemas inversos de transporte de partículas neutras a uma velocidade para aplicações em engenharia nuclear são desenvolvidas. É fato conhecido que problemas diretos estacionários e monoenergéticos de transporte são caracterizados por estimar o fluxo de partículas como uma função-distribuição das variáveis independentes de espaço e de direção de movimento, quando os parâmetros materiais (seções de choque macroscópicas), a geometria, e o fluxo incidente nos contornos do dom

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8

Goliath, Elroy Mario. "Adsorptive separations in the production of neutral wine alcohol." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52634.

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Thesis (PhD)--University of Stellenbosch, 2002.<br>ENGLISH ABSTRACT: This study describes the design, construction, complete industrialisation and operation of a dual bed vacuum swing adsorption (VSA) demonstration plant, which operates at atmospheric and sub-atmospheric conditions. All design objectives as set out initially were met. The plant removes contaminants such as methanol and water from neutral wine spirit. Neutral wine spirit is a key component of various local and international spirituous products which include liqueurs, gin, vodka, fortified wines and brandy. Neutral wine

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9

Nguyen, Le Ha Vy. "Stability and stabilization of several classes of fractional systems with delays." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112387/document.

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Nous considérons deux classes de systèmes fractionnaires linéaires invariants dans le temps avec des ordres commensurables et des retards discrets. La première est composée de systèmes fractionnaires à entrées multiples et à une sortie avec des retards en entrées ou en sortie. La seconde se compose de systèmes fractionnaires de type neutre avec retards commensurables. Nous étudions la stabilisation de la première classe de systèmes à l'aide de l'approche de factorisation. Nous obtenons des factorisations copremières à gauche et à droite et les facteurs de Bézout associés: ils permettent de con

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10

Brennecke, Käthery. "Fracionamento de carboidratos e proteínas e a predição da proteína bruta e suas frações e das fibras em detergentes neutro e ácido de Brachiaria brizantha cv. Marandu por uma rede neural artificial." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/74/74131/tde-24042007-141702/.

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Numa área experimental de 25,2 ha formada com o capim-braquiarão (Brachiaria brizantha (Hochst) Stapf.) cv. Marandu e localizada no Campus da USP em Pirassununga/SP, durante o período de janeiro a julho de 2004, conduziu-se a presente pesquisa pela Faculdade de Zootecnia e Engenharia de Alimentos (FZEA/USP) com os seguintes objetivos: 1) Determinar as frações de carboidratos (A - açúcares solúveis com rápida degradação ruminal; B1- amido e pectina; B2 - parede celular com taxa de degradação mais lenta; C - fração não digerida) e as frações protéicas (A - NNP; B1 - peptídeos e oligopeptídeos; B

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11

長家, 康展. "確率論的手法による炉心解析に関する研究". 京都大学 (Kyoto University), 2012. http://hdl.handle.net/2433/165032.

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12

Vernet, Maxime. "Study of charmless four-body decays of neutral b-baryons with the LHCb spectrometer." Thesis, Université Clermont Auvergne‎ (2017-2020), 2018. http://www.theses.fr/2018CLFAC020/document.

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Le travail présenté dans ce document est dédié à l’étude des désintégrations faibles de deux baryons beaux, Λ0b (|udb>) et Ξ0b (|usb>), et utilise des échantillons de données enregistrés par l’expérience LHCb en 2011 et en 2012. La production abondante des baryons Λ0b et Ξ0b dans les collisions proton-proton ainsi que la grande probabilité pour un quark b d’hadroniser en un baryon beau au Large Hadron Collider (LHC), donne à l’expérience LHCb l’opportunité d’étudier les désintégrations multicorps sans charme de baryons beaux. Une part significative de cette étude est dédiée aux mesures d

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13

Henry, Louis. "Charmless hadronic three-body decays of neutral B mesons with a Kos in the final state in the LHCb experiment : branching fractions and an amplitude analysis." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066428/document.

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Dans cette thèse sont présentées plusieurs études relatives aux désintégrations de mésons Bd et Bs en trois corps sans charme avec un KS dans l'état final.Ces analyses portent sur des données collectées par l'expérience LHCb durant le Run I du LHC, et qui correspondent à une luminosité intégrée de 3 fb-1.Une première analyse consiste à la mesure des rapports d'embranchements des modes B(d,s) -> KSh+h'-, ou h(') désigne un kaon ou un pion.Les mesures précédemment effectuées par LHCb de ces rapports d'embranchement, relativement à celui du mode Bd->KSpi+pi-, sont actualisées.Le but princip

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14

Ducouret, Guylaine. "Fractionnement des asphaltènes par chromatographie d'exclusion stérique : caractérisation des fractions par diffusion des neutrons aux petits angles." Paris 6, 1987. http://www.theses.fr/1987PA066348.

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Le but de l'étude est de déterminer la taille, la structure et la masse moléculaire des asphaltènes après un fractionnement par chromatographie d'exclusion stérique. La caractérisation des fractions et des asphaltènes non fractionnés est réalisée par chromatographie analytique et diffusion des neutrons aux petits angles. Des corrélations entre les résultats de ces deux techniques sont développées afin d'étalonner le système chromatographique analytique, ce qui permet de l'utiliser comme méthode rapide de caractérisation. L'étude est réalisée sur des asphaltènes safanya et étendue aux autres ty

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15

Schramm, Marcelo. "Análise do modelo fracionário de cinética pontual de nêutrons pelo método da decomposição." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2013. http://hdl.handle.net/10183/96357.

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O objetivo deste trabalho é realizar uma análise sobre a cinética de nêutrons utilizando um modelo fracionário, recente na literatura. Este novo modelo envolve uma nova relação constitutiva entre a corrente de nêutrons e o fluxo escalar de nêutrons, em que uma das suposições realizada para a relação constitutiva clássica (lei de Fick) não é feita: a densidade de corrente não mais é irrelevante se comparada `a taxa de colisão. Ao considerar esta hipótese, este novo modelo aqui apresentado se torna mais abrangente que o modelo fickiano clássico. Para manter o caráter geral do modelo é considerad

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16

KURAMOTO, RENATO Y. R. "Desenvolvimento de uma metodologia baseada no modelo de duas-regiões e em técnicas de análise de ruído microscópico para a medida absoluta dos parâmetros cinéticos Betasub(eff), Lambda e Betasub(eff/Lambda do reator IPEN/MB-01." reponame:Repositório Institucional do IPEN, 2007. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11547.

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Made available in DSpace on 2014-10-09T12:53:07Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T13:59:04Z (GMT). No. of bitstreams: 0<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP<br>FAPESP:03/01261-0

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17

FANARO, LEDA C. C. B. "Determinacao experimental de indices espectrais por varredura gama de vareta combustivel no reator IPEN/MB-01." reponame:Repositório Institucional do IPEN, 2009. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9410.

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Made available in DSpace on 2014-10-09T12:26:35Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:06:28Z (GMT). No. of bitstreams: 0<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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18

Le, Maître Johann. "Développement de la spectrométrie de masse à ultra- haute résolution associée à la spectrométrie de mobilité ionique pour la caractérisation de coupes pétrolières lourdes. structural analysis of heavy oil fractions afterr hydrodenitrogenation by high-resolution tandem mass spectrometry and ion mobility spectrometry Structural analysis of neutral nitrogen compounds refractory to the hydrodenitrogenation process of heavy oil fractions by high-resolution tandem mass spectrometry and ion mobility-mass spectrometry Chemical characterization of 15 biocrudes obtained from hydrothermal liquefaction of industrially cultivated wild micro algae Chemical characterization with different analytical techniques, a way to understand the process: Case of the paraffinic base oil production line Exploring complex mixtures by cyclic ion mobility high-resolution mass spectrometry – Application towards Petroleum. Simulation and modeling of Collision Cross Section for structural elucidation of heavy oil fraction by ion mobility-mass spectrometry: Using polyaromatic hydrocarbons compounds mixture as calibration standard Characterization of sulfoxides compounds in dimeric distribution of heavy oil fractions by positive-ion electrospray ionization FTICR mass spectrometry Structural analysis of Petroporphyrins from asphaltene by trapped ion mobility coupled with a Fourier transform ion cyclotron resonance mass spectrometer. Cyclic ion mobility spectrometry coupled to high-resolution time-of-flight mass spectrometry equipped with atmospheric solid analysis probe for the molecular characterization of combustion particulate matter. Structural study of analogues of Titan’s haze by trapped ion mobility coupled with a Fourier transform ion cyclotron mass spectrometer." Thesis, Normandie, 2020. http://www.theses.fr/2020NORMR051.

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L'évolution des réserves de pétrole implique l'utilisation en raffinerie de pétroles bruts non conventionnels, bien souvent plus lourds et donc difficiles à caractériser. Les produits pétroliers sont en effet des mélanges chimiques extrêmement complexes. La partie légère et volatile peut être analysée par chromatographie en phase gazeuse couplée à la spectrométrie de masse (GC/MS), permettant l'identification des composés par l'utilisation de mesures de masses précises et de modèles de fragmentation. Cependant ces techniques sont inadaptées à l'analyse des fractions lourdes. Dans la pratique,

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19

Lima, Janaina Rosolem. "Impacto da variabilidade populacional na degradabilidade ruminal in situ em touros alimentados com forragens de baixa qualidade." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/11/11139/tde-18062015-112757/.

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Estudos in situ comumente são conduzidos com pequeno número de animais, existindo poucos trabalhos enfocando o impacto da variabilidade animal sobre seus resultados. O objetivo deste estudo foi explorar o efeito da variabilidade animal sobre as taxas fracionais de degradação (kd) de MS, FDN, FDA e CEL de forragens. Foi conduzido experimento utilizando trinta novilhos Nelore portadores de cânula ruminal (372 ± 16,02 kg P.V.). Dieta 1, todos os animais receberam dieta contendo 100% feno de Coast-cross + sal mineral, ambos ad libitum. Na Dieta 2, todos os animais receberam dieta com 88% de bagaço

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20

Kuramoto, Renato Yoichi Ribeiro. "Desenvolvimento de uma metodologia baseada no modelo de Duas-Regiões e em técnicas de análise de ruído microscópico para a medida absoluta dos parâmetros cinéticos βeff, Λ e βeff/Λ do reator IPEN/MB-01." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/85/85133/tde-29032012-133723/.

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Uma nova metodologia para a medida absoluta da fração efetiva de nêutrons atrasados βeff, baseada em técnicas de análise de ruído microscópico e no modelo de Duas- Regiões, foi desenvolvida no reator IPEN/MB-01. Diferentemente das demais técnicas, tais como o Método de Bennet Modificado, o Método do Número de Nelson e o Método da fonte de 252Cf, a principal vantagem da metodologia proposta é a obtenção de βeff de um modo puramente experimental, sem a necessidade de quaisquer outros parâmetros, sejam estes calculados ou provenientes de outros experimentos. Com a finalidade de validar

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21

Kumar, Mithlesh. "Magnetic flux distorsion in two-phase liquid metal flow." Phd thesis, Toulouse, INPT, 2016. http://oatao.univ-toulouse.fr/15854/1/Kumar_1.pdf.

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A Generation IV Sodium cooled Fast Reactor (SFR) is being researched and developed at CEA, Cadarache France under the project named ASTRID. Monitoring gas presence in SFR is important with respect to its safe operation. In accordance with the principles of diversity, techniques based on different measurement principles have been proposed. This thesis concerns the detection and characterization of void using magnetic flux perturbation principle. An Eddy Current Flow Meter (ECFM) device is used for this purpose. From the technological point of view, the objective is to evaluate the feasibility o

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22

Galdino, Luciano. "CALFRAC: Programa que quantifica o processo de cristalização fracionada e sua aplicação ao estudo de soleiras da Bacia do Paraná (Estado do Paraná)." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/14/14132/tde-03012011-135433/.

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Foi desenvolvido um programa computacional escrito na linguagem de programação C++ denominado CALFRAC para quantificar o processo de cristalização fracionada em sistemas ígneos, utilizando para isso as concentrações dos elementos maiores, menores e traços. O algoritmo moderniza, torna mais eficiente e aprimora os programas publicados na literatura e possui a grande vantagem de poder calcular, automaticamente, todas as possíveis combinações de evolução das amostras envolvidas na diferenciação, além de associar aos cálculos os elementos-traço, os quais servem para confirmar os resultados sugerid

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23

Alavi-Harati, Ashkan. "Observation and branching fraction measurement of the [neutral cascade beta decay] at KTeV/E799-II, Fermilab." 1999. http://catalog.hathitrust.org/api/volumes/oclc/43268914.html.

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Thesis (Ph. D.)--University of Wisconsin--Madison, 1999.<br>Typescript. On t.p. neutral cascade beta decay is represented by Greek letters. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 236-239).

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24

Kutter, Paul E. "Measurement of CP violation in neutral B mesons decaying to phi K(short), and of branching fraction of and CP violation in neutral B mesons decaying to f0(980) K(short)." 2006. http://www.library.wisc.edu/databases/connect/dissertations.html.

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25

Nally, Christian Winslow. "Charged-current and neutral-current event fraction determination based on fit vertices, time residuals and PMT hit angles for the Sudbury Neutrino Observatory." Thesis, 1996. http://hdl.handle.net/2429/4607.

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The Sudbury Neutrino Observatory (SNO) aims to improve our understanding of neutrinos and energy-generating processes in the Sun. The central purpose of SNO is to compare the flux of charged-current (CC) and neutral-current (NC) events caused by solar neutrinos. The target in SNO will be 10⁶ kg of D₂O. One plan for enhancing the detection of NC events is by doping the D₂O with ³⁵Cl. This thesis describes maximum likelihood fitters created for the purpose of fitting CC events and for fitting NC events that result from neutron capture by a ³⁵Cl nucleus. For each fit event, likelihood ratio

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26

Wu, Tzu-Ying, and 吳姿瑩. "Measurements of Branching Fractions and CP Asymmetries in Charmless Hadronic Two-body Neutral-B Meson Decays." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/39060892761338998686.

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碩士<br>國立臺灣大學<br>物理研究所<br>99<br>We present the final-update on the measurements of branching fractionsforneutralBmesondecays,B0 →K+π−,π+π−,K+K− , K0K0, K0π0, and the measurement of the direct CP violating partial-rateasymmetriesACP inB0 →K+π−,π+π−,K0K0,K0π0 based on a data sample of 772 × 106BB pairs collected with the Belle detector at the KEKB energy-asymmetric e+e− collider op- erating on the Υ(4S) resonance. The data sample is around 1.7 times larger than the sample previous reported. The correspond- ing branching fractions are to be B(B0 → K+π−) = (20.0 ± 0.3(stat.) ± 0.6(syst.)) ×10−6, B(

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27

Chiang, Chih-Min, and 江致民. "Studies on the fractions of heavy metals associated with phosphate and released by HCl solution of polluted neutral and alkali soils." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/03057270635449339678.

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碩士<br>中興大學<br>土壤環境科學系所<br>94<br>There are some agricultural lands polluted by heavy metals in Taiwan .The over use of phosphate fertilizer may affect the fate of the heavy metals in soil, such as the precipitation of heavy metals as phosphates. The purposes of this study were to develop a sequential chemical extractions (SCE) scheme suitable to fractionate the forms of heavy metals associated with phosphate in neutral and alkali soils contaminated with heavy metals. In order to investigate the forms and fractions of heavy metals and nutrients removed as heavy metals polluted soil washed with H

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28

Liu, Ran. "The measurement of CP asymmetries and branching fractions in neutral B meson decays to charged rhos and pions (kaons) with the BABAR detector." 2004. http://www.library.wisc.edu/databases/connect/dissertations.html.

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