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SOIL BACTERIA: TRANSPORT IN BIDIMENSIONAL POROUS MEDIA 土壤细菌:在二维多孔介质中运输
IF 0.3
Anales AFA Pub Date : 2019-01-01 DOI: 10.31527/analesafa.2018.29.4.137
S. Montagna, A. Lodeiro, V. Marconi
{"title":"SOIL BACTERIA: TRANSPORT IN BIDIMENSIONAL POROUS MEDIA","authors":"S. Montagna, A. Lodeiro, V. Marconi","doi":"10.31527/analesafa.2018.29.4.137","DOIUrl":"https://doi.org/10.31527/analesafa.2018.29.4.137","url":null,"abstract":"","PeriodicalId":41478,"journal":{"name":"Anales AFA","volume":"35 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78511957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CANALES DE MINIMA ENERGIA PARA LAS REACCIONES DEL RADICAL CCl2 CON O2(1∑g) Y O2(1Δg) 一个长条能量通道的激进反应CCl2 O2(∑(g)和O2(1Δ(g)
IF 0.3
Anales AFA Pub Date : 2019-01-01 DOI: 10.31527/ANALESAFA.2019.30.1.1
N. D. Gómez, J. Codnia, M. Azcárate, Carlos J. Cobos
{"title":"CANALES DE MINIMA ENERGIA PARA LAS REACCIONES DEL RADICAL CCl2 CON O2(1∑g) Y O2(1Δg)","authors":"N. D. Gómez, J. Codnia, M. Azcárate, Carlos J. Cobos","doi":"10.31527/ANALESAFA.2019.30.1.1","DOIUrl":"https://doi.org/10.31527/ANALESAFA.2019.30.1.1","url":null,"abstract":"","PeriodicalId":41478,"journal":{"name":"Anales AFA","volume":"1 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83266006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
SEGMENTATION OF SEQUENCES WITH GAMMA DISTRIBUTION 伽玛分布序列的分割
IF 0.3
Anales AFA Pub Date : 2019-01-01 DOI: 10.31527/ANALESAFA.2019.30.2.36
G. G. A. Varela, M. Ré, S. Masuelli
{"title":"SEGMENTATION OF SEQUENCES WITH GAMMA DISTRIBUTION","authors":"G. G. A. Varela, M. Ré, S. Masuelli","doi":"10.31527/ANALESAFA.2019.30.2.36","DOIUrl":"https://doi.org/10.31527/ANALESAFA.2019.30.2.36","url":null,"abstract":"In images obtained with coherent lighting such as synthetic aperture radar (SAR), a multiplicative noise known as speckle appears. The speckle makes radiometric homogeneous zones respond with Gamma type distributions. The detection of edges in this type of images is of interest and usefulness in many applications. In this paper three methods of analysis by segmentation based on the calculation of the Jensen Shannon Divergence that can be applied to SAR images are proposed. The approximation of the probability distributions was carried out using the density Kernel method.","PeriodicalId":41478,"journal":{"name":"Anales AFA","volume":"23 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83118638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
AN EPHIMERAL ACOUSTICS LABORATORY AT LA PLATA NATIONAL UNIVERSITY 拉普拉塔国立大学的一个声学实验室
IF 0.3
Anales AFA Pub Date : 2019-01-01 DOI: 10.31527/ANALESAFA.2018.29.4.116
María Cecilia von Reichenbach
{"title":"AN EPHIMERAL ACOUSTICS LABORATORY AT LA PLATA NATIONAL UNIVERSITY","authors":"María Cecilia von Reichenbach","doi":"10.31527/ANALESAFA.2018.29.4.116","DOIUrl":"https://doi.org/10.31527/ANALESAFA.2018.29.4.116","url":null,"abstract":"","PeriodicalId":41478,"journal":{"name":"Anales AFA","volume":"52 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78120481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
THE REFORM FAR FROM THE REFORM IN THE PHISICALMATEMATICAL SCIENCES FACULTY OF THE NULP: RICARDO GANS AND HIS AMBIVALENCES, 1918-1921. 与物理数学科学系改革相去甚远的改革:里卡多·甘斯及其矛盾心理，1918-1921。
IF 0.3
Anales AFA Pub Date : 2019-01-01 DOI: 10.31527/ANALESAFA.2018.29.4.129
Andrés Dragowski
{"title":"THE REFORM FAR FROM THE REFORM IN THE PHISICALMATEMATICAL SCIENCES FACULTY OF THE NULP: RICARDO GANS AND HIS AMBIVALENCES, 1918-1921.","authors":"Andrés Dragowski","doi":"10.31527/ANALESAFA.2018.29.4.129","DOIUrl":"https://doi.org/10.31527/ANALESAFA.2018.29.4.129","url":null,"abstract":"","PeriodicalId":41478,"journal":{"name":"Anales AFA","volume":"1 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78464963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
MICROCONFINED SPERMATIC CELLS: WALL INTERACTION 微受限精细胞:细胞壁相互作用
IF 0.3
Anales AFA Pub Date : 2019-01-01 DOI: 10.31527/ANALESAFA.2018.29.4.111
M. A. B. Marcat, A. J. Banchio, V. Marconi
{"title":"MICROCONFINED SPERMATIC CELLS: WALL INTERACTION","authors":"M. A. B. Marcat, A. J. Banchio, V. Marconi","doi":"10.31527/ANALESAFA.2018.29.4.111","DOIUrl":"https://doi.org/10.31527/ANALESAFA.2018.29.4.111","url":null,"abstract":"","PeriodicalId":41478,"journal":{"name":"Anales AFA","volume":"1 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77985363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
KINETIC EVOLUTION OF A 3D SPHERICAL CRYSTAL WITH MOBILE PARTICLES USING MONTE CARLO 用蒙特卡罗方法研究具有可移动粒子的三维球形晶体的动力学演化
IF 0.3
Anales AFA Pub Date : 2019-01-01 DOI: 10.31527/analesafa.2019.30.2.25
C. L. Di Prinzio, P. I. Achával, D. Stoler, G. Varela
{"title":"KINETIC EVOLUTION OF A 3D SPHERICAL CRYSTAL WITH MOBILE PARTICLES USING MONTE CARLO","authors":"C. L. Di Prinzio, P. I. Achával, D. Stoler, G. Varela","doi":"10.31527/analesafa.2019.30.2.25","DOIUrl":"https://doi.org/10.31527/analesafa.2019.30.2.25","url":null,"abstract":"In this work, the evolution of a tridimensional (3D) spherical crystal with mobile particles using a Monte Carlo algorithm is presented. The mean radius R of spherical crystal without particles changes according to the law: R2 = -4kt + Ro2, where Ro is the initial radius and k is a crystal constant. However, this law is modified when mobile particles are included. The effect of two types of mobile particles on the grain boundary migration of a spherical grain was also studied. One type of particle remained located in the middle of the grain boundary once it was incorporated (CT), and the other type of particle remained at the grain boundary without having any particular location (NC). It could be seen that the CT particle slowed down more the grain boundary migration than the NC particles. It was also found that the rate of reduction of the grain area is inversely proportional to the concentration of CT particles in the grain boundary for all the CT particles concentrations. Finally, it was established that the grain reaches a limit radius for CT particles which is related to the amount of particles that can be accommodated in the grain boundary.","PeriodicalId":41478,"journal":{"name":"Anales AFA","volume":"61 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88973278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
ESTUDIO DE LA EVOLUCIÓN SUPERFICIAL DE UN BORDE DE GRANO EN HIELO PURO POR PROCESOS EVAPO-DIFUSIVOS 通过蒸发扩散过程研究纯冰中颗粒边缘的表面演化
IF 0.3
Anales AFA Pub Date : 2019-01-01 DOI: 10.31527/ANALESAFA.2019.30.1.10
M. Lado, D. Stoler, G. Varela, C. D. Prinzio
{"title":"ESTUDIO DE LA EVOLUCIÓN SUPERFICIAL DE UN BORDE DE GRANO EN HIELO PURO POR PROCESOS EVAPO-DIFUSIVOS","authors":"M. Lado, D. Stoler, G. Varela, C. D. Prinzio","doi":"10.31527/ANALESAFA.2019.30.1.10","DOIUrl":"https://doi.org/10.31527/ANALESAFA.2019.30.1.10","url":null,"abstract":"In this work, we studied the evolution of the groove that forms the grain boundary (BG)when it emerges to a free surface, in the presence of different processes of matter transport. The depth of a groove of the BG was obtained in an ice sample with orientation <1010>/50º at -5 ºC for 3h in dry air, by using a confocal microscope. The experimental results are fitted correctly with a process of transport of matter governed mainly by gaseous diffusion.","PeriodicalId":41478,"journal":{"name":"Anales AFA","volume":"88 2 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88501633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
DETERMINACIÓN DEL COEFICIENTE DE AUTO-DIFUSIÓN SUPERFICIAL DEL HIELO IH 冰表面自扩散系数IH的测定
IF 0.3
Anales AFA Pub Date : 2019-01-01 DOI: 10.31527/analesafa.2019.30.1.6
D. Stoler, M. Lado, R. P. Arcila, G. Varela, C. L. Di Prinzio
{"title":"DETERMINACIÓN DEL COEFICIENTE DE AUTO-DIFUSIÓN SUPERFICIAL DEL HIELO IH","authors":"D. Stoler, M. Lado, R. P. Arcila, G. Varela, C. L. Di Prinzio","doi":"10.31527/analesafa.2019.30.1.6","DOIUrl":"https://doi.org/10.31527/analesafa.2019.30.1.6","url":null,"abstract":"En este trabajo se estudió la evolución del ancho del surco formado por la intersección del borde de grano (BG) en una muestra de hielo bicristalina con la superficie libre de la misma. La muestra de hielo estudiada tenía una desorientación cristalina desconocida y fue sumergida en aceite de siliconas ultra puro a -5oC a fin de evitar procesos de evaporación. Se tomaron fotografías del surco cada 17 minutos durante 100 horas con un microscopio óptico y con estas imágenes se determinó la evolución del ancho del surco. Mediante ese estudio se pudo medir el coeficiente de autodifusión superficial del hielo a -5oC. In this work the evolution of the groove in a bicrystalline ice sample was studied. The groove is formed by the intersection of the grain boundary(BG) with the free surface. The ice sample studied had arbitrary misorientation angle and was immersed in ultra pure silicone oil at -5oC in order to avoid evaporation processes. Photographs of the groove was taken every 17 minutes for 100 hours with an optical microscope and the evolution of the groove was determined with these images. The coefficient of superficial self-diffusion of ice at -5oC has been measured","PeriodicalId":41478,"journal":{"name":"Anales AFA","volume":"21 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77774750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
IMPLEMENTATION OF A SOFTWARE TOOL FOR THE STUDY OF CENTRAL-FORCE PROBLEMS 一个研究中心力问题的软件工具的实现
IF 0.3
Anales AFA Pub Date : 2018-10-16 DOI: 10.31527/analesafa.2018.29.3.73
F. Arriaga, J. P. Staneck, F. Lanzini, O. Fornaro
{"title":"IMPLEMENTATION OF A SOFTWARE TOOL FOR THE STUDY OF CENTRAL-FORCE PROBLEMS","authors":"F. Arriaga, J. P. Staneck, F. Lanzini, O. Fornaro","doi":"10.31527/analesafa.2018.29.3.73","DOIUrl":"https://doi.org/10.31527/analesafa.2018.29.3.73","url":null,"abstract":"Se presenta una implementación computacional desarrollada como herramienta de enseñanza para ser utilizada en el aula en el estudio del movimiento en un campo de fuerzas centrales. Esta implementación permite la visualización del potencial efectivo y de la trayectoria de una partícula de masa reducida alrededor del centro de fuerzas. El uso de esta herramienta permite complementar la resolución de problemas con solución analítica, y estudiar problemas no solubles analíticamente.","PeriodicalId":41478,"journal":{"name":"Anales AFA","volume":"94 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2018-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83933407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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