Optical granulometric analysis of sedimentary deposits by color segmentation-based software: OPTGRAN-CS

The study of grain size distribution is fundamental for understanding sedimentological environments. Through these analyses, clast erosion, transport and deposition processes can be interpreted and modeled. However, grain size distribution analysis can be difficult in some outcrops due to the number and complexity of the arrangement of clasts and matrix and their physical size. Despite various technological advances, it is almost impossible to get the full grain size distribution (blocks to sand grain size) with a single method or instrument of analysis. For this reason development in this area continues to be fundamental. In recent years, various methods of particle size analysis by automatic image processing have been developed, due to their potential advantages with respect to classical ones; speed and final detailed content of information (virtually for each analyzed particle). In this framework, we have developed a novel algorithm and software for grain size distribution analysis, based on color image segmentation using an entropy-controlled quadratic Markov measure field algorithm and the Rosiwal method for counting intersections between clast and linear transects in the images. We test the novel algorithm in different sedimentary deposit types from 14 varieties of sedimentological environments. The results of the new algorithm were compared with grain counts performed manually by the same Rosiwal methods applied by experts. The new algorithm has the same accuracy as a classical manual count process, but the application of this innovative methodology is much easier and dramatically less time-consuming. The final productivity of the new software for analysis of clasts deposits after recording field outcrop images can be increased significantly.The study of grain size distribution is fundamental for understanding sedimentological environments. Through these analyses, clast erosion, transport and deposition processes can be interpreted and modeled. However, grain size distribution analysis can be difficult in some outcrops due to the number and complexity of the arrangement of clasts and matrix and their physical size. Despite various technological advances, it is almost impossible to get the full grain size distribution (blocks to sand grain size) with a single method or instrument of analysis. For this reason development in this area continues to be fundamental. In recent years, various methods of particle size analysis by automatic image processing have been developed, due to their potential advantages with respect to classical ones; speed and final detailed content of information (virtually for each analyzed particle). In this framework, we have developed a novel algorithm and software for grain size distribution analysis, based on color image segmentation using an entropy-controlled quadratic Markov measure field algorithm and the Rosiwal method for counting intersections between clast and linear transects in the images. We test the novel algorithm in different sedimentary deposit types from 14 varieties of sedimentological environments. The results of the new algorithm were compared with grain counts performed manually by the same Rosiwal methods applied by experts. The new algorithm has the same accuracy as a classical manual count process, but the application of this innovative methodology is much easier and dramatically less time-consuming. The final productivity of the new software for analysis of clasts deposits after recording field outcrop images can be increased significantly

Roundness Estimation of Sedimentary Rocks Using Eliptic Fourier and Deep Neural Networks

Sedimentary rocks analysis is useful in geological science, economic sector, and risk evaluation. Roundness is a morphological parameter that provide information to characterize and classify sedimentary material. Roundness degrees is estimated from the contour of the particle. Waddell (1932) proposed a remarkable method based on the measurement of particle’s curvature. This method is accurate; evertheless, it is not invariant to scale and rotation. This problem can be solved by mapping the contour to the frequencydomain, however, spectral analysis is a difficult task. Based on these two approaches, we propose to use a deep neural network whose input is the elliptical Fourier spectrum and target is roundness proposed by Wadell. The training database consists of 623 realrocks images from some geological phenomena. We have found the neural networks perform very well on the 88.8% of rocks

Roundness Estimation of Sedimentary Rocks Using Eliptic Fourier and Deep Neural Networks

Sedimentary rocks analysis is useful in geological science, economic sector, and risk evaluation. Roundness is a morphological parameter that provide information to characterize and classify sedimentary material. Roundness degrees is estimated from the contour of the particle. Waddell (1932) proposed a remarkable method based on the measurement of particle’s curvature. This method is accurate; evertheless, it is not invariant to scale and rotation. This problem can be solved by mapping the contour to the frequencydomain, however, spectral analysis is a difficult task. Based on these two approaches, we propose to use a deep neural network whose input is the elliptical Fourier spectrum and target is roundness proposed by Wadell. The training database consists of 623 realrocks images from some geological phenomena. We have found the neural networks perform very well on the 88.8% of rocks

Propuesta de Plan de Mejora para sistema de Mantenimiento preventivo a los Equipos de transporte de carga pesada en empresa comercializadora de Maní S.A. COMASA

Presenta propuesta de Plan de Mejora para sistema de Mantenimiento preventivo a los Equipos de transporte de carga pesada en empresa comercializadora de Maní S.A. COMASA en el cual se realizó un estudio de la situación actual así como el establecimiento de indicadores de mantenimiento a implementar

Unravelling the relevance of the polyadenylation factor EhCFIm25 in entamoeba histolytica through proteomic analysis

We recently reported that silencing of the polyadenylation factor EhCFIm25 in Entamoeba histolytica, the protozoan which causes human amoebiasis, affects trophozoite proliferation, death, and virulence, suggesting that EhCFIm25 may have potential as a new biochemical target. Here, we performed a shotgun proteomic analysis to identify modulated proteins that could explain this phenotype. Data are available via ProteomeXchange with identifier PXD027784. Our results revealed changes in the abundance of 75 proteins. Interestingly, STRING analysis, functional GO‐term annotations, KEGG analyses, and literature review showed that modulated proteins are mainly related to glycolysis and carbon metabolism, cytoskeleton dynamics, and parasite virulence, as well as gene expression and protein modifications. Further studies are needed to confirm the hypotheses emerging from this proteomic analysis, to thereby acquire a comprehensive view of the molecular mechanisms involved

URNA ELECTRÓNICA MÓVIL

RESUMEN ANALÍTICOEn este artículo se presenta la implementación de una aplicación denominada “Urna Electrónica Móvil” (UEM). UEM permite emitir un voto a través de un teléfono móvil durante una jornada electoral sin importar su ubicación. UEM está basada en la tecnología WAP (Wireless Application Protocol), implementada en XHTML-MP (Extensible Hypertext Markup Language-Mobile Profile) y WAP CSS (WAP Cascading Style Sheets). Para el almacenamiento de los datos se utiliza el manejador PostgreSql bajo la plataforma Linux. El uso de Servlets de Java permite la generación de código XHTML-MP para su visualización en un celular. También se presenta una interfaz para graficar los resultados de las preferencias electorales mediante la biblioteca de clases “JFreeChart”. Asimismo se utiliza el protocolo SSL (Secure Socket Layer) para proteger la información transmitida entre el cliente móvil y el servidor Web. Además se presenta el diseño de una interfaz a través de la API WMA (Wireless Menssage API) de la plataforma J2ME (JAVA 2 Micro Edition), para implementar UEM a través de mensajes de texto SMS (Short Message Service). Con el uso de UEM los usuarios podrán ser capaces de emitir su voto en cualquier momento y en cualquier lugar.PALABRAS CLAVES: Computo Movil, Gobierno Electronico ,WAP: Wireless Application Protocol, WMA: Wireless Message Api, SMS: Short Message Service, SSL: Secure Sockets Layer, GSM: Global System For Mobile Communications  ANALYTICAL SUMMARYThis article shows the implementation of an application called “Mobile Electronic Ballot Box” (MEB). MEB allows sending a vote via mobile phone during an election day, anytime and anywhere. MEB is based on WAP (Wireless Application Protocol) technology, is implemented with XHTML-MP (Extensible Hypertext Markup Language-Mobile Profile) and WAP CSS (WAP Cascading Style Sheets). PostgreSql is used to hold the database under the Linux platform. Java Servlets generate the XHTML-MP code in order to display it in a mobile device. An interface to show the electoral preference results using graphics is also presented via “JFreeChart” library. Furthermore, the SSL (Secure Socket Layer) protocol is used to protect the information transmitted between the mobile client and the Web server. In addition, the design of an interface through the WMA (Wireless Message API) of J2ME (Java 2 Micro Edition) platform is presented, in order to implement MEB via Short Message Service (SMS). Using MEB, users will be able to cast their vote at anywhere and anytime.KEYWORDS: Mobile Computing, Electronic Government, WAP: Wireless Application Protocol, WMA: Wireless Message Api, SMS: Short Message Service, SSL: Secure Sockets Layer, GSM: Global System For Mobile Communications

URNA ELECTRÓNICA MÓVIL

RESUMEN ANALÍTICOEn este artículo se presenta la implementación de una aplicación denominada “Urna Electrónica Móvil” (UEM). UEM permite emitir un voto a través de un teléfono móvil durante una jornada electoral sin importar su ubicación. UEM está basada en la tecnología WAP (Wireless Application Protocol), implementada en XHTML-MP (Extensible Hypertext Markup Language-Mobile Profile) y WAP CSS (WAP Cascading Style Sheets). Para el almacenamiento de los datos se utiliza el manejador PostgreSql bajo la plataforma Linux. El uso de Servlets de Java permite la generación de código XHTML-MP para su visualización en un celular. También se presenta una interfaz para graficar los resultados de las preferencias electorales mediante la biblioteca de clases “JFreeChart”. Asimismo se utiliza el protocolo SSL (Secure Socket Layer) para proteger la información transmitida entre el cliente móvil y el servidor Web. Además se presenta el diseño de una interfaz a través de la API WMA (Wireless Menssage API) de la plataforma J2ME (JAVA 2 Micro Edition), para implementar UEM a través de mensajes de texto SMS (Short Message Service). Con el uso de UEM los usuarios podrán ser capaces de emitir su voto en cualquier momento y en cualquier lugar.PALABRAS CLAVES: Computo Movil, Gobierno Electronico ,WAP: Wireless Application Protocol, WMA: Wireless Message Api, SMS: Short Message Service, SSL: Secure Sockets Layer, GSM: Global System For Mobile Communications  ANALYTICAL SUMMARYThis article shows the implementation of an application called “Mobile Electronic Ballot Box” (MEB). MEB allows sending a vote via mobile phone during an election day, anytime and anywhere. MEB is based on WAP (Wireless Application Protocol) technology, is implemented with XHTML-MP (Extensible Hypertext Markup Language-Mobile Profile) and WAP CSS (WAP Cascading Style Sheets). PostgreSql is used to hold the database under the Linux platform. Java Servlets generate the XHTML-MP code in order to display it in a mobile device. An interface to show the electoral preference results using graphics is also presented via “JFreeChart” library. Furthermore, the SSL (Secure Socket Layer) protocol is used to protect the information transmitted between the mobile client and the Web server. In addition, the design of an interface through the WMA (Wireless Message API) of J2ME (Java 2 Micro Edition) platform is presented, in order to implement MEB via Short Message Service (SMS). Using MEB, users will be able to cast their vote at anywhere and anytime.KEYWORDS: Mobile Computing, Electronic Government, WAP: Wireless Application Protocol, WMA: Wireless Message Api, SMS: Short Message Service, SSL: Secure Sockets Layer, GSM: Global System For Mobile Communications

Acoustic individual identification in birds based on the band-limited phase-only correlation function

A new technique based on the Band-Limited Phase-Only Correlation (BLPOC) function to deal with acoustic individual identification is proposed in this paper. This is a biometric technique suitable for limited data individual bird identification. The main advantage of this new technique, in contrast to traditional algorithms where the use of large-scale datasets is assumed, is its ability to identify individuals by the use of only two samples from the bird species. The proposed technique has two variants (depending on the method used to analyze and extract the bird vocalization from records): automatic individual verification algorithm and semi-automatic individual verification algorithm. The evaluation of the automatic algorithm shows an average precision that is over 80% for the identification comparatives. It is shown that the efficiencies of the algorithms depend on the complexity of the vocalizations