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Acoustic spin transfer to a subwavelength spheroidal particle [article]

Jose H. Lopes, Everton B. Lima, Jose P. Leao-Neto, Glauber T. Silva
2020 arXiv   pre-print
The timedependent term e −iωt is omitted for simplicity. The incident pressure and velocity fields are given, respectively, by v in = ∇φ in and p in = ikρ 0 c 0 φ in .  ...  The density of angular momentum flux is then L = r × P.  ... 
arXiv:2003.12784v1 fatcat:rnu7vbnk5rhkrklmhnii4dcn5e

Acoustic radiation force and torque on spheroidal particles in an ideal cylindrical chamber [article]

Jose P. Leao-Neto, Mauricio Hoyos, Jean-Luc Aider, Glauber T. Silva
2020 arXiv   pre-print
We use the complexphase representation to express the acoustic pressure and fluid velocity, p(r, t) = p(r)e −iωt and v(r, t) = v(r)e −iωt , respectively.  ...  Using the expression sin −1 2β dβ = ln(tan β)/2, we find β(t) = arccot exp − t t β J 2 0 (k 0m ) cot β 0 , (42a) t β = 4k k 1 2 g t µ 0 χE 0 . (42b) The orientation angle asymptotically approaches β =  ... 
arXiv:2009.08808v1 fatcat:qnug247spnbbnpeqy6y6gcqpcq

Distribution loss allocation methods assessment under electricity market environment

P. M. De Oliveira-De Jesus, M. T. Ponce de Leao
2005 2005 IEEE Russia Power Tech  
P. M. De Oliveira-De Jesús, Member, IEEE, and M. T.  ...  (6) ∑ = = m j Gj Gi Gi T T L % L 1 50 i ,…, n (7) B.  ... 
doi:10.1109/ptc.2005.4524630 fatcat:m2zed6r2mbfcpgn7v6kcfcpzha

Intervalo hídrico ótimo na avaliação de sistemas de pastejo contínuo e rotacionado

T. P. Leão, A. P. Silva, M. C. M. Macedo, S. Imhoff, V. P. B. Euclides
2004 Revista Brasileira de Ciência do Solo  
e 3,5 t ha-1 MST (R2).  ...  Tanzânia, foram retiradas 30 amostras por piquete; em um dos piquetes, o resíduo pós-pastejo era mantido entre 2,0 e 2,5 t ha-1 de matéria seca total (MST) (R1), enquanto no outro era mantido entre 3,0  ...  Foi utilizado um limite crítico de significância de p = 0,05.  ... 
doi:10.1590/s0100-06832004000300002 fatcat:l7cdarr5izfzrpkv6iiiwzjda4

Acoustic radiation torque exerted on a subwavelength spheroidal particle by a traveling and standing plane wave [article]

Jose P. Leao-Neto, Jose H. Lopes, Glauber T. Silva
2019 arXiv   pre-print
The density of angular momentum flux is defined as L = r × P = r × ρ 0 vv, since r × I = 0.  ...  At the trapping point, the radiation torque of a standing plane wave is tantamount that of a traveling plane wave, τ S rad = τ T rad .  ... 
arXiv:1912.12933v1 fatcat:ruuvyrwkxrcqziery66f7q2mvq

A twenty-year survey of dermatophytoses in Braga, Portugal

G. L. Valdigem, T. Pereira, C. Macedo, M. L. Duarte, P. Oliveira, P. Ludovico, A. Sousa-Basto, C. Leao, F. Rodrigues
2006 International Journal of Dermatology  
Analysis of the clinical forms and the isolated fungi supports that the dermatophyte species have a predilection for certain body areas ( P ≤ 0.01).  ...  Overall the gender of the patients is not an association factor for the development of dermatophytoses; however, significant differences were detected in the distribution of some etiologic agents ( P ≤  ...  **P ≤ 0.01, ***P ≤ 0.0001. Acknowledgments We are grateful to Agostinho Carvalho for helpful discussions and suggestions and to Pedro Gomes for help on the data statistical analysis.  ... 
doi:10.1111/j.1365-4632.2006.02886.x pmid:16863519 fatcat:2xsxuwng6ngyhjkmzq2duqqzdi

Communication of students with ASD: A self-regulation of learning based intervention

Andréia T. Leão, Siglia P. H. Camargo, Lourdes Maria B. Frison
2019 Psicologia - Teoria e Prática  
Leão, Siglia P. H. Camargo, Lourdes Maria B.  ...  Andréia T. Leão, Siglia P. H. Camargo, Lourdes Maria B. Frison There was also an increase in eye contact for participants 1 (X A =0.6; X B =5.4) and 3 (X A =0.1; X B =1.8).  ... 
doi:10.5935/1980-6906/psicologia.v21n3p473-500 fatcat:pwjgmxcfqzb7tca7xbcirxldpa

Heterogeneidade da compactação de um latossolo vermelho-amarelo sob pomar de laranja

C. L. R. Lima, A. P. Silva, S. Imhoff, H. V. Lima, T. P. Leão
2004 Revista Brasileira de Ciência do Solo  
Os resultados foram submetidos à análise de variância, sendo as médias nas diferentes posições de amostragem comparadas por meio do teste t de student a 5 % (SAS, 1991).  ...  Considerando que somente este indicador apresentou-se significativamente relacionado com o local de amostragem, procedeu-se a uma análise de comparação de médias, utilizando o teste t de student a 5 %,  ... 
doi:10.1590/s0100-06832004000300001 fatcat:u66abkuy4bhuvoys2mfbcxs2z4

Particle Patterning by Ultrasonic Standing Waves in a Rectangular Cavity

Glauber T. Silva, José H. Lopes, José P. Leão-Neto, Madeleine K. Nichols, Bruce W. Drinkwater
2019 Physical Review Applied  
The translation matrix T is a J × J matrix.  ...  The incident effective pressure on the particle at r i is given by p (i) eff (r|r 1 , . . . , r N ) = p in (r|r i ) + p sc (r|P), (19) where p sc (r|P) is the total scattered pressure by particles at P  ... 
doi:10.1103/physrevapplied.11.054044 fatcat:etwnclyq4jetnohompo6dfaohi

Compressibilidade de um solo sob sistemas de pastejo rotacionado intensivo irrigado e não irrigado

C. L. R. Lima, A. P. Silva, S. Imhoff, T. P. Leão
2004 Revista Brasileira de Ciência do Solo  
PRI I σ P PRI NI CICLO DE PASTEJO CV, %  ...  Os valores médios da pressão de preconsolidação, para os sistemas de pastejo intensivo rotacionado irrigado (PRI I ) e não irrigado (PRI NI ), foram comparados, utilizando o teste t de student a 5 % (  ... 
doi:10.1590/s0100-06832004000600002 fatcat:5zisqrchavckvajaus5nur72b4

Nonlinear interaction of acoustic waves with a spheroidal particle: radiation force and torque effects [article]

Everton B. Lima, JosE P. Leao-Neto, Alisson S. Marques, Giclenio C. Silva, Jose H. Lopes, Glauber T. Silva
2020 arXiv   pre-print
The acoustic pressure and fluid velocity are expressed using the complex-phase representation, p(r, t) = p(r)e −iωt and v(r, t) = v(r)e −iωt , respectively.  ...  the well-known linear acoustic equations v = − i ρ 0 c 0 k ∇p, (1a) ∇ 2 + k 2 p = 0, (1b) ∇ × v = 0. (1c) The time-dependent term e −iωt is omitted for simplicity.  ... 
arXiv:2004.12980v1 fatcat:qruwv7kasnca7ld4b22suy4eau

Improving the chemical properties of Buriti oil (Mauritia flexuosa L.) by enzymatic interesterification

P. Speranza, K. M.M. Leão, T. S. Narciso Gomes, L. V.C. Reis, A. P. Rodrigues, J. Alves Macedo, A. P.B. Ribeiro, G. Alves Macedo
2018 Grasas y Aceites  
ISSN-L: 0017-3495 • P. Speranza et al. Grasas Aceites 69 (4), October-December 2018, e282. ISSN-L: 0017-3495 • P.  ...  Commercial, purified and immobilized lipase from T. lanuginosa (Lipozyme TL-IM) was kindly supplied by Novozymes Latin America Ltda. All other reagents and solvents were of analytical grade.  ... 
doi:10.3989/gya.0229181 fatcat:boqrg3ugj5gdhpzv3b7rlbd44y

Synergistic allelochemicals from a freshwater cyanobacterium

P. N. Leao, A. R. Pereira, W.-T. Liu, J. Ng, P. A. Pevzner, P. C. Dorrestein, G. M. Konig, V. M. Vasconcelos, W. H. Gerwick
2010 Proceedings of the National Academy of Sciences of the United States of America  
Ilarri with the nutrient autoanalyzer, T. Byrum with the lung cancer cell line bioassays, O. Vinning with the extraction and VLC procedures, and A. Jansma with the 600 MHz NMR.  ...  | Leão et al.  ...  LEGE 03278 n/a Cylindrospermopsis raciborskii LEGE 99045 28.4 | Leão et al. | Leão et al.  ... 
doi:10.1073/pnas.0914343107 pmid:20534563 pmcid:PMC2895120 fatcat:atuzktp3izhfjihg4jiex73ery

Critical thickness investigation of magnetic properties in exchange-coupled bilayers

R. L. Rodríguez-Suárez, L. H. Vilela-Leão, T. Bueno, A. B. Oliveira, J. R. L. de Almeida, P. Landeros, S. M. Rezende, A. Azevedo
2011 Physical Review B  
We present a systematic investigation of the magnetic properties of two series of polycrystalline ferromagneticantiferromagnetic bilayers (FM-AF) of Ni 81 Fe 19 (10nm)/Ir 20 Mn 80 (t AF ) grown by dc magnetron  ...  Ferromagnetic resonance (FMR) was used to measure the exchange bias field H E , the rotatable anisotropy field H RA , and the FMR linewidth H as a function of the antiferromagnetic layer thickness t AF  ...  33 Å ΔH (Oe) t AF =45 Å φ H (deg) φ H (deg) t AF =56 Å V.  ... 
doi:10.1103/physrevb.83.224418 fatcat:bbdnxasdcjdb7fzjfsdenke2d4

Acoustic radiation force and torque exerted on a small viscoelastic particle in an ideal fluid [article]

J. P. Leao-Neto, Glauber T. Silva
2016 arXiv   pre-print
P. L. Neto received Ph.D. scholarship from CAPES Foundation.  ...  The total pressure and fluid velocity outside the particle are, respectively, p = p in + p sc and v = v in + v sc .  ...  (14) into Eq. (11) yields a wave equation for each potential, 1 + τ ν ∂ ν t ∇ 2 − c −2 ∂ 2 t φ e −iωt = 0, (15) 1 + τ ν s ∂ ν t ∇ 2 − c −2 s ∂ 2 t Ae −iωt = 0. (16) Given that the potential function  ... 
arXiv:1508.01908v2 fatcat:7bknqi3lujhcdeb4kwok2fed5u
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