1,252 research outputs found

    Fast System Identification and Model Reduction Solvers

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    Enhancement of ferromagnetism by nickel doping in the 112 cobaltite EuBaCo2O5.50

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    The study of the ordered oxygen deficient perovskite EuBaCo2-xNixO5.50 shows that the doping of cobalt sites by nickel induces a strong ferromagnetic component at low temperature in the antiferromagnetic matrix of EuBaCo2O5.50. This system exhibits indeed phase separation, i.e. consists of ferromagnetic domains embedded in the antiferromagnetic matrix of EuBaCo2O5.50. Besides, a magnetic transition is observed for the first time at 40K in the undoped and nickel doped phases, which can be attributed to the ferromagnetic ordering of the Eu3+ moments below this temperature. Moreover sharp ultra magnetization multisteps are observed below 5K, characteristic of motion of domain walls in a strong pinning system and very different from any metamagnetic transition

    Gold Market Analyzer using Selection based Algorithm

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    Gold is the most important and valuable element right from its discovery. It is the most significant element at present and also the most valuable asset to. In the present market scenario the investors use gold as the security for their shares investment. During International trade all the countries use gold as their main mode of transaction. It is seen that all the currencies accepted by the International market are having the gold as the backup for their economy. The prices of gold are rising day by day continuously. As we see in the history of gold market the present prices of gold are much high as compare to the past values and that's why the gold market has attracted the most attention. The paper focus on the continuous changing in the gold rates, investment policies depend on the forecasting of trends in gold which will help the data mining companies to minimize the risk The description of the future situation on the basis of present trends is just not limited to the forecasting the prices. The knowledge discovers by the data mining techniques is gathered from the different gold related websites and also from the jewellers database. It is much more important for the ornaments making companies to know the demand and the requirements for the ornaments during the unstable (uncertain) market conditions. For the classification purpose the maid and sale database was gathered from the nearest jewellery shops of the past 5 years. The prediction is done after complete analysis of the gathered data set. With this the paper concentrate on making the information available about the government and private schemes related to gold market on one place. The paper proposes the system that gives the total access to the registered user and limited access to the unregistered user to get the required information of gold. The latest updates are provided to the registered user by sending mail or text message when the user was offline

    Volunteer RR® corn management in Roundup Ready® soybean-corn succession system.

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    ABSTRACT - The present study evaluated the effects of cover crops (Pennisetum glaucum, Crotalaria spectabilis and Urochloa ruziziensis) associated with the application of herbicides {glyphosate; (glyphosate + haloxyfop-R); (glyphosate + fluazifop-p-butyl); (glyphosate + imazethapyr) and (glyphosate + imazaquin)} in soybean desiccation management for volunteer RR® corn control. The experiment was conducted under field conditions at Sinop-MT, during the 2013/2014 crop season, in a randomized complete blocks design with factorial scheme and four replications. The following parameter were evaluated: dry matter of cover crops and ground coverage rate, control of volunteer RR® corn present at the time of desiccation, dry matter, height and intoxication level on soybean plants caused by herbicides at 7, 14 and 28 days after emergence (DAE), control of volunteer RR® corn derived from emergence fluxes subsequent to desiccation management and soybean yield. The joint application of (glyphosate + haloxyfop-R) provided the best level of volunteer RR® corn control present at the time of desiccation. Satisfactory control (80%) of volunteer corn was obtained with the application of (glyphosate + imazethapyr). This treatment displayed an additional residual effect of imazethapyr, which efficiently controled volunteer RR® corn derived from fluxes subsequent to desiccation management, especially in treatments performed under U. ruziziensis straw. None of the herbicides used in desiccation management caused any significant effect on dry matter, height and phytotoxicity of soybean plants at 7, 14 and 28 DAE nor on grain yield. RESUMO - Avaliaram-se nesta pesquisa os efeitos de plantas de cobertura (Pennisetum glaucum, Urochloa ruziziensis e Crotalaria spectabilis) associadas à aplicação de herbicidas {glyphosate; (glyphosate+haloxyfop-R), (glyphosate+fluazifop-p-butil), (glyphosate+imazethapyr) e (glyphosate+imazaquin)} no manejo de dessecação na cultura da soja, visando o controle do milho RR® voluntário. O experimento foi conduzido em campo no município de Sinop-MT, na safra 2013/2014, no delineamento experimental de blocos casualizados, em esquema fatorial, com quatro repetições. Foram avaliados: matéria seca das plantas de cobertura e cobertura do solo, controle do milho RR® voluntário presente no momento da dessecação, matéria seca, altura e intoxicação das plantas de soja pelos herbicidas aos 7, 14 e 28 dias após a emergência (DAE), controle do milho RR® voluntário oriundo de fluxos de emergência posterior ao manejo de dessecação e produtividade da soja. A aplicação conjunta de (glyphosate+haloxyfop-R) proporcionou o melhor nível de controle do milho RR® voluntário presente no momento da dessecação. Controle satisfatório (80%) do milho voluntário foi obtido com a aplicação de (glyphosate+imazethapyr). Este tratamento teve como adicional o efeito residual do imazethapyr, que controlou de maneira eficiente o milho RR® voluntário oriundo de fluxo posterior ao manejo de dessecação, principalmente nos tratamentos cultivados sob palhada de U. ruziziensis. Não houve efeito significativo dos herbicidas utilizados no manejo de dessecação na matéria seca, altura e fitotoxicidade das plantas de soja aos 7, 14 e 28 DAE e na produtividade de grãos
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