A5022263790- Nuclear physics research studies
- Nuclear Physics and Applications
- Astronomical and nuclear sciences
- Geography and Environmental Studies
- Irrigation Practices and Water Management
- Atomic and Molecular Physics
- Nuclear reactor physics and engineering
- Growth and nutrition in plants
- Radiation Detection and Scintillator Technologies
- Cold Fusion and Nuclear Reactions
- Particle Detector Development and Performance
- Environmental and biological studies
- Quantum Chromodynamics and Particle Interactions
- Soil Management and Crop Yield
- Particle physics theoretical and experimental studies
- Boron Compounds in Chemistry
- X-ray Spectroscopy and Fluorescence Analysis
- Banana Cultivation and Research
- Particle accelerators and beam dynamics
- Medical Imaging Techniques and Applications
- Radiopharmaceutical Chemistry and Applications
- Animal and Plant Science Education
- Graphite, nuclear technology, radiation studies
- Nuclear and radioactivity studies
- Hydraulic flow and structures
National Nuclear Energy Commission
2011-2022
Instituto de Pesquisas Energéticas e Nucleares
2011-2022
Universidade Federal de Campina Grande
2012-2022
Universidade de São Paulo
2006-2019
Universidade Federal da Grande Dourados
2016
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Sud
2009-2014
Universidade Federal do Ceará
1987-2012
Czech Academy of Sciences, Nuclear Physics Institute
2009-2010
Universidade Brasil
2005-2010
The University of Tokyo
2009
Excitation functions for sub- and near-barrier total (complete + incomplete) fusion cross sections are presented the 6,7Li+59Co reactions. Evaporation residues were identified by their characteristic γ rays corresponding yields measured with both IReS Garel array at Vivitron facility São Paulo Ge 8UD Pelletron tandem using standard γ-ray techniques. The data extend to medium-mass systems previous works exploring coupling effects (hindrance versus enhancement) in reactions of lighter heavier...
The $^{10}\mathrm{B}(p,{\ensuremath{\alpha}}_{0})^{7}\mathrm{Be}$ bare nucleus astrophysical $S(E)$ factor has been measured for the first time at energies from about 100 keV down to 5 by means of Trojan Horse method (THM). In this energy region, is strongly dominated 8.699 MeV $^{11}\mathrm{C}$ level (${J}^{\ensuremath{\pi}}={\frac{5}{2}}^{+}$), producing an $s$-wave resonance centered 10 in entrance channel. Up now, only high--energy tail measured, while low-energy trend extrapolated...
A new measurement of the 11B(p,?0)8Be has been performed applying Trojan horse method (THM) to 2H(11B,?80Be)n quasi-free reaction induced at a laboratory energy 27 MeV. The astrophysical S(E) factor extracted from ?600 keV down zero by means an improved data analysis technique and it compared with direct available in literature. range investigated here overlaps region light element LiBeB stellar burning that future aneutronic fusion power plants using 11B+p fuel cycle. investigation...
For the first time astrophysical factor of $^{10}\mathrm{B}(p,{\ensuremath{\alpha}}_{0})^{7}\mathrm{Be}$ reaction has been measured over a wide energy range, from 5 keV to 1.5 MeV, via Trojan horse method (THM) applied quasifree $^{2}\mathrm{H}(^{10}\mathrm{B},\ensuremath{\alpha}^{7}\mathrm{Be})n$ reaction. Therefore, $S(E)$ recast into absolute units by scaling in range 200 keV--1.2 MeV recent measurement using activation method, leading normalization uncertainty $4%$. An $R$-matrix fit THM...
The elastic scattering for the $^{6,7}\mathrm{Li}+^{59}\mathrm{Co}$ systems was investigated in bombarding energy range $12\phantom{\rule{0.3em}{0ex}}\text{MeV}\ensuremath{\leqslant}{E}_{\mathrm{lab}}\ensuremath{\leqslant}30\phantom{\rule{0.3em}{0ex}}\text{MeV}$ by means of an analysis using S\~ao Paulo potential, through which behavior real and imaginary parts as function established. experimental results suggest that overall there is evidence usual threshold anomaly both systems, although...
ABSTRACT: In the present study, we aimed to assess in vitro viability of pollen grains from maize cultivars collected at different times and days field. Four (Sol da Manhã, XB 6012, 8010, BRS 2020) were evaluated second fifth day anthesis three times. Pollen samples for their through standard germination test liquid solid media tetrazolium staining. The experimental design was completely randomized, 4x4x3 split-split plots with four replicates. Data subjected analysis variance followed by a...
This study applied regionalization techniques on future climate change scenarios for the precipitation over Xingu River Basin (XRB) considering 2021–2080 horizon, in order to assess impacts monthly flow rates and possible consequences electricity generation at Belo Monte Hydroelectric Power Plant (BMHPP). is fourth largest hydroelectric power plant world, with a generating capacity of 11,233 MW, located Brazilian Amazon. Two representative concentration pathways (RCP 4.5 RCP 8.5) an ensemble...
A complete algebraic model simulating furrow irrigation is presented. It can be used to analyze and predict the performance of sloping openended systems, based upon solution a mass conservation equation. The input variables are: length, slope, Manning roughness, infiltration parameters, shape, inflow rate, cutoff time. All information necessary estimate distribution water water‐application efficiency for particular event are obtained. Model evaluated by comparison with field data more...
FUNÇÃO DE RESPOSTA DA MELANCIA À APLICAÇÃO ÁGUA E NITROGÊNIO PARA AS CONDIÇÕES EDAFOCLIMÁTICAS FORTALEZA, CE[1] Francisco Edinaldo Pinto MousinhoUniversidade Federal do Piauí, Campus Amílcar Ferreira Sobral, Floriano-PIe-mail: edinaldomousinho@bol.com.brRaimundo Nonato Távora CostaFrancisco de Souza Departamento Engenharia Agrícola, Universidade Ceará, , Fortaleza-CERaimundo Rodrigues Gomes FilhoCENTEC- Centro Ensino Tecnológico – Sobral-CE 1 RESUMO Com o objetivo estudar efeito da água,...
Difficulties in cross-section measurements at very low energies, when charged particles are involved, led to the development of some indirect methods. The Trojan horse method (THM) allows us bypass Coulomb effects and has been successfully applied several reactions astrophysical interest. A brief review THM applications is reported together with most recent results.
O Estado da Paraíba apresenta alta variabilidade espacial e temporal na distribuição das chuvas. Além disso, existem muitos locais onde não se tem informações sobre os valores de precipitação. Logo, o uso regressão polinomial (superfície tendência) tentativa obter estimativas precipitação pode ser uma alternativa para um melhor entendimento espaço-temporal desse parâmetro meteorológico. Assim, objetivo principal estudo foi utilizar método como ferramenta estimar médias mensais conhecidos...
An experimental overview of reactions induced by the stable, but weakly-bound nuclei 6 Li , 7 and 9 Be exotic, halo He 8 B 11 17 F on medium-mass targets, such as 58 Ni 59 Co or 64 Zn is presented. Existing data elastic scattering, total reaction cross sections, fusion, breakup transfer channels are discussed in framework a CDCC approach taking into account degree freedom.
Este trabalho tem como objetivo estudar a variabilidade espacial da precipitação pluvial média mensal do Estado Paraíba, no período de 1962 2001, utilizando técnicas geoestatísticas. Os dados foram cedidos pela Unidade Acadêmica Ciências Atmosféricas (UACA) Universidade Federal Campina Grande (UFCG), coletados em estações meteorológicas e postos pluviométricos localizados 102 municípios Estado. Foi usado o semivariograma para determinar dependência variável estudo, seguida foi feita uma...