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Search Results: 1 - 10 of 325293 matches for " Iordam S; "
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Produtividade da pimenta-do-reino em fun??o de doses de esterco bovino
Oliveira, Ademar P;Alves, Edna U;Silva, Jandiê A;Alves, Anarlete U;Oliveira, Arnaldo Nonato P;Leonardo, Francisco AP;Moura, Mácio F;Cruz, Iordam S;
Horticultura Brasileira , 2007, DOI: 10.1590/S0102-05362007000300017
Abstract: although paraíba state, has shown aptitude for black pepper cultivation, being possible to recommend it as an alternative for agricultural diversification in that area, no recommendation for black pepper crop fertilization exists. this research was conducted at the universidade federal da paraíba, in areia, paraíba state, brazil, to evaluate black pepper genotypes submitted to increasing levels of cattle manure. the experimental design was of randomized blocks, with treatments in the factorial 5 x 3 scheme. the first factor was represented by cattle manure levels (0; 4; 8; 12; and 16 kg plant-1) and the second factor, by the black pepper genotypes (ia?ará, cingapura and bragantina), with four replications. black pepper production increased with the use of cattle manure in environmental conditions. the highest pepper yield per plant of bragantina (1012 g), ia?ará (1269 g), and cingapura (627 g) were obtained with 7.3; 8.6; and 7.0 kg of cattle manure/plant, respectively. the estimated yields of dry pepper were of 6.5; 8.9; and 7.8 kg plant-1, responding to maximum yields of 358, 793 and 204 g plant-1 for bragantina, ia?ará and cingapure genotypes, respectively.
Yield of gherkin in response to doses of bovine manure
Oliveira, Arnaldo Nonato P de;Oliveira, Ademar P de;Leonardo, Francisco de Assis P;Cruz, Iordam da S;Silva, Damiana F da;
Horticultura Brasileira , 2009, DOI: 10.1590/S0102-05362009000100020
Abstract: considering the importance of gherkin in northeastern brazil, studies focusing on increasing its quality and yield are powerful tools to improve people social and economical condition in this region. the effects of doses of bovine manure were evaluated in gherkin yield in an experiment using cultivar nordestino, from may to september 2006, at the federal university of paraíba, in areia county, paraíba state, brazil. the experimental design was randomized complete blocks, with five treatments (0; 10; 20; 30, and 40 t ha-1) of bovine manure, in four replications. the working area in each experimental plot corresponded to 80 m2, including 20 plants, with 2.0 x 2.0 m spaces. the highest number of fruits per plant (30) was achieved with 32.2 t ha-1 of bovine manure. both fruit production per plant and fruit yield increased with doses of bovine manure, with maximum values of respectively 1,306 g and 19.5 t ha-1, when 40 t ha-1 of bovine manure were used.
Yield and phenology of yam as affected by the physiological rest period of seed-rhizomes
Oliveira, Ademar P de;Moura, Márcio F de;Alves, Edna U;Alves, Anarlete U;Oliveira, Arnaldo Nonato P de;Leonardo, Francisco de Assis P;Cruz, Iordam da S;
Horticultura Brasileira , 2008, DOI: 10.1590/S0102-05362008000200005
Abstract: the objective of this work was to evaluate the effects of the rest period of seed-rhizomes in the phenology and yield of yam da costa (dioscorea cayennensis). the experiment was carried out in field conditions at the federal university of paraíba, in areia, brazil, from january to december 2004, in an ustpsamment soil. a completely randomized block design was used to test three treatments, 60-, 80-, and 100-day seed-rhizome rest periods, with seven replications. plant emergency was evaluated every ten days from 40 to 90 days after planting (dap), as well as plant height, evaluated up to 80 dap. the average mass of commercial rhizomes and the yield of commercial and seed-rhizomes were also assessed. at 40, 50, and 60 days after planting, plant emergency was superior for seed-rhizomes submitted to 100-day rest periods. at 70 and 80 dap, there were no significant differences. at 90 dap, seed-rhizomes that rested for 60 and 100 days provided around 91 and 83% of plant emergency, respectively. concerning plant height, seed-rhizomes that rested 100 days produced the tallest plants. the average mass of commercial rhizomes and the yield of commercial and seed-rhizomes were 1.22 kg, 13.1 t ha-1, and 7.7 t ha-1, respectively, for seed rhizomes submitted to 60-day rest periods. for 100-day rest period rhizomes, the average mass of commercial rhizomes and the yield of commercial and seed-rhizomes, were 0.73 kg, 7.7 t ha-1, and 1.7 t ha-1, respectively.
Rendimento de feij?o-vagem em fun??o de doses de K2O
Oliveira, Ademar Pereira de;Silva, Jandiê Araújo;Alves, Adriana Ursulina;Dorneles, Carina Seixas M;Alves, Anarlete Ursulino;Oliveira, Arnaldo Nonato P. de;Cardoso, Edson A.;Cruz, Iordam da Silva;
Horticultura Brasileira , 2007, DOI: 10.1590/S0102-05362007000100007
Abstract: aiming to evaluate the effect of k2o levels on the increase of snap bean yield, an experiment was performed in paraíba state, brazil, in a quartz psamment soil. the experimental design was of randomized blocks, with six treatments (0; 50; 100; 150; 200 and 250 kg ha-1 of k2o), in four replications. each plot contained 40 plants spaced 1.0 m x 0.2 m. pods maximum number/plant (20 pods) and the maximum yield/plant (171 g), were obtained, respectively with 145 and 173 kg ha-1 of k2o, and pods yield reached maximum value around 25,3 t ha-1 at the level of 171 kg ha-1 of k2o. the most economic level of k2o for the production of pods was of 165 kg ha-1. the most economic level represented 96% comparing to that responsible for maximum pods production. the k2o levels that obtained maximum pods production and economic return were correlated, respectively, with 181 and 176 mg dm-3 of k available for the extractor mehlich 1.
Study of the Structural and Electrical Properties of Cr-Doped BiFeO3 Ceramic  [PDF]
S. S. Arafat, S. Ibrahim
Materials Sciences and Applications (MSA) , 2017, DOI: 10.4236/msa.2017.810051
Abstract: Multiferroic BiFe1-xCrxO3 (x = 0.2 and 0.4) ceramics were synthesized in a single phase. The effects of Cr3+ substitution on the crystal structure, dielectric permittivity and leakage current were investigated. Preliminary X-ray structural studies revealed that the samples had a rhombohedral perovskite crystal structure. The dielectric constant ε' significantly increased while the dielectric loss tanδ was substantially decreased with the increase in Cr3+ substitution. The temperature effect on the dielectric properties exhibited an anomaly corresponding to magneto-electric coupling in the samples and was shifted to lower temperatures with the increase in Cr3+ substitution. The leakage current density also reduced in magnitude with the increase in the Cr3+ substitution.
Degree Splitting of Root Square Mean Graphs  [PDF]
S. S. Sandhya, S. Somasundaram, S. Anusa
Applied Mathematics (AM) , 2015, DOI: 10.4236/am.2015.66086
Abstract: Let \"\" be an injective function. For a vertex labeling f, the induced edge labeling \"\" is defined by, \"\" or \"\"; then, the edge labels are distinct and are from \"\". Then f is called a root square mean labeling of G. In this paper, we prove root square mean labeling of some degree splitting graphs.
A Parameter Estimation Model of G-CSF: Mathematical Model of Cyclical Neutropenia  [PDF]
S. Balamuralitharan, S. Rajasekaran
American Journal of Computational Mathematics (AJCM) , 2012, DOI: 10.4236/ajcm.2012.21002
Abstract: We investigate the FFT (Fast Fourier Transform) model and G-CSF (granulocyte colony-stimulating factor) treatment of CN (Cyclical Neutropenia). We collect grey collies and normal dog’s data from CN and analyze the G-CSF treatment. The model develops the dynamics of circulating blood cells before and after the G-CSF treatment. This is quite natural and useful for the collection of laboratory data for investigation. The proposed interventions are practical. This reduces the quantity of G-CSF required for potential maintenance. This model gives us good result in treatment. The changes would be practical and reduce the risk side as well as the cost of treatment in G-CSF.
Synthesis, Thermal Behaviour, XRD, and Luminescent Properties of Lighter Lanthanidethiodipropionate Hydrates Containing Aminogunidine as Neutral Ligand  [PDF]
S. Packiaraj, S. Govindarajan
Open Journal of Inorganic Chemistry (OJIC) , 2014, DOI: 10.4236/ojic.2014.43006
Aminoguanidine lanthanide thiodipropionate hydrates of composition [Ln(Agun)2(tdp)3·nH2O], Agun = Aminoguanidine, tdp = thiodipropionic acid, where Ln = La, Pr, Nd and Sm if n = 2, have been prepared and characterized by physic-chemical techniques.
Fuzzy Based Intelligent Monitoring of Critical Lines in the Restructured Power Market  [PDF]
S. Rajasekaran, S. Sathiyamoorthy
Circuits and Systems (CS) , 2016, DOI: 10.4236/cs.2016.79191
Abstract: Restructured electric market environment allows the power wheeling transactions between the power producers and customers to meet the growing load demand. This will lead to the possible of congestion in the transmission lines. The possible contingencies of power components further worsen the scenario. This paper describes the methodology for the identification of critical transmission line by computing the real power and reactive power performance indices. It also demonstrates the importance of fuzzy logic technique used to rank the transmission lines according to the severity and demonstrated on IEEE-30 bus system.
Error Correction Circuit for Single-Event Hardening of Delay Locked Loops  [PDF]
S. Balaji, S. Ramasamy
Circuits and Systems (CS) , 2016, DOI: 10.4236/cs.2016.79210
Abstract: In scaled CMOS processes, the single-event effects generate missing output pulses in Delay-Locked Loop (DLL). Due to its effective sequence detection of the missing pulses in the proposed Error Correction Circuit (ECC) and its portability to be applied to any DLL type, the ECC mitigates the impact of single-event effects and completes its operation with less design complexity without any concern about losing the information. The ECC has been implemented in 180 nm CMOS process and measured the accuracy of mitigation on simulations at LETs up to 100 MeV-cm2/mg. The robustness and portability of the mitigation technique are validated through the results obtained by implementing proposed ECC in XilinxArtix 7 FPGA.
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