A configuration system for the ATLAS trigger

The ATLAS detector at CERN's Large Hadron Collider will be exposed to proton-proton collisions from beams crossing at 40 MHz that have to be reduced to the few 100 Hz allowed by the storage systems. A three-level trigger system has been designed to achieve this goal. We describe the configuration system under construction for the ATLAS trigger chain. It provides the trigger system with all the parameters required for decision taking and to record its history. The same system configures the event reconstruction, Monte Carlo simulation and data analysis, and provides tools for accessing and manipulating the configuration data in all contexts.Comment: 4 pages, 2 figures, contribution to the Conference on Computing in High Energy and Nuclear Physics (CHEP06), 13.-17. Feb 2006, Mumbai, Indi

Resonant and nonresonant D+ -> K- pi+ l+ nu(l) semileptonic decays

We analyse the semileptonic decay D+ -> K- pi+ l+ nu(l) using an effective Lagrangian developed previously to describe the decays D -> P l nu(l) and D -> V l nu(l). Light vector mesons are included in the model which combines the heavy quark effective Lagrangian and chiral perturbation theory approach. The nonresonant and resonant contributions are compared. With no new parameters the model correctly reproduces the measured ratio Gamma(nres)/Gamma(nres + res). We also present useful nonresonant decay distributions. Finally, a similar model, but with a modified current which satisfies the soft pion theorems at the expense of introducing another parameter, is analyzed and the results of the models are compared.Comment: 17 pages, 3 Postscript figures, standard Latex, extended revision, title, abstract and text (especially Sec. IV) changed, results unchange

Extractive method optimization for Ligustrum lucidum yhat leads to a better free radical scavenging activity

info:eu-repo/semantics/publishedVersio

Heavy Quark Symmetry Violation in Semileptonic Decays of D Mesons

The decays of $D$ mesons to $K l \nu$ and $K^* l \nu$ final states exhibit significant deviations from the predictions of heavy-quark symmetry, as one might expect since the strange quark's mass is of the same order as the QCD scale. Nonetheless, in order to understand where the most significant effects might lie for heavier systems (such as $B \to D l\nu$ and $B \to D^* l\nu$), the pattern of these deviations is analyzed from the standpoint of perturbative QCD and ${\cal O}(1/m_s)$ corrections. Two main effects are noted. First, the perturbative QCD corrections lead to an overall decrease of predicted rates, which can be understood in terms of production of excited kaonic states. Second, ${\cal O}(1/m_s)$ effects tend to cancel the perturbative QCD corrections in the case of $Kl\nu$ decay, while they have minimal effect in $K^*l\nu$ decay.Comment: 25 pages (LaTeX) + 7 pages of Postscript figures (included at end), EFI-92-3

Hot water treatment as and alternative control of postharvest decay of mango.

This study was undertaken to determine the effects of hot water treatment to contraI postharvest decay of mango

Voice Interaction for Augmented Reality Navigation Interfaces with Natural Language Understanding

Voice interaction with natural language understanding (NLU) has been extensively explored in desktop computers, handheld devices, and human-robot interaction. However, there is limited research into voice interaction with NLU in augmented reality (AR). There are benefits of using voice interaction in AR, such as high naturalness and being hands-free. In this project, we introduce VOARLA, an NLU-powered AR voice interface, which navigate courier driver delivery a package. A user study was completed to evaluate VOARLA against an AR voice interface without NLU to investigate the effectiveness of NLU in the navigation interface in AR. We evaluated from three aspects: accuracy, productivity, and commands learning curve. Results found that using NLU in AR increases the accuracy of the interface by 15%. However, higher accuracy did not correlate to an increase in productivity. Results suggest that NLU helped users remember the commands on the first run when they were unfamiliar with the system. This suggests that using NLU in an AR hands-free application can make the learning curve easier for new users

Assessment of Exoskeleton Related Changes in Kinematics and Muscle Activity

Work-related musculoskeletal disorders, reported at shoulder and low back regions, rank among the most serious health problems in industry. Owing to their ability in providing support to the shoulder and back regions during sustained and repetitive tasks, passive exoskeletons are expected to prevent work-related disorders. In this work, experimental protocols were conducted for the extraction of relevant information regarding the neuromuscular activation and kinematics during simulated working activities with passive exoskeletons. Our results support the notion these passive exoskeletons have the potential to alleviate muscular loading and therefore to prevent musculoskeletal disorders in the industrial sector

Avaliação multicritério para priorização de ações e tecnologias visando o desenvolvimento sustentável de Paty do Alferes - RJ.

Levando-se em consideração as profundas e constantes transformações em áreas ambientais, como as das microbacias hidrográficas e sendo os agentes tomadores de decisões em relação ao setor, observa-se que são muitas as questões que estão a exigir soluções, bem como os objetivos a serem compatibilizados, tornando?se necessário a utilização de metodologias que considerem as interdependências e as transformações que vêm passando as áreas em questão. Assim sendo, devido à complexidade da situação e da necessidade de um tratamento global e sistêmico utilizaram-se métodos de Análise Multicritérios como suporte para priorização de ações e/ou alternativas tecnológicas viáveis para a região, levando-se em consideração aspectos econômicos, sociais e ambientais. Foram utilizados os métodos de Ponderação Linear, Método AHP Multiplicativo (Expert Choise), Método AIM(Aspiration Level Interactive Method) e o Método MATS-PC(Multi Atribute Tradeoff System). Ficou claro, como resultado global deste segmento, que não existe uma única estratégia (tanto ação quanto tecnologia) que se destaque significativamente das demais. Existe, sim, um grupo de alternativas que se encontram, em qualquer método, na mesma faixa (entre as primeiras, entre as últimas ou em posições intermediárias).bitstream/CNPS/11845/1/bpd03_2002_paty.pd

Diagnóstico socioeconômico dos municípios da região noroeste do Estado do Rio de Janeiro.

O diagnóstico do noroeste fluminense tem por objetivo avaliar a situação atual de cada município da região, destacando os principais pontos socioeconômicos. Os resultados obtidos mostram a precariedade em diversos setores da sociedade, onde as estatísticas revelam números insatisfatórios. Na educação, foram registrados altos índices de analfabetismo, destacando ainda a presença significativa do trabalho infantil. O êxodo rural é uma realidade na região, onde todos os municípios vêm sofrendo sucessivas quedas nas populações de campo. Neste contexto, a produção agropecuária (lavoura e leite) é razoavelmente baixa no Noroeste, onde a produtividade nos diversos setores se encontra abaixo dos níveis estaduais. Melhorias nas condições de produção agropecuária, assim como projetos que visem atender às demandas sociais, tornam-se extremamente necessários para o desenvolvimento da região.bitstream/item/63326/1/bpd41-2003-socioeconomia-noroeste-rj.pd