CT&F - Ciencia, Tecnología y Futuro最新文献_第3页

Analysis of the covariance matrix in FWI through density of covariance maps 通过协方差图的密度分析FWI的协方差矩阵

CT&F - Ciencia, Tecnología y Futuro Pub Date : 2020-06-30 DOI: 10.29047/01225383.163

A. Jim'enez, Juan Carlos Muñoz Cuartas, S. Avendaño, Leonardo Gómez Bernal

引用次数: 0

Origin of a double forearc basin: The example of the Tumaco - Manglares basin, Northestern Southamerica 双前弧盆地的起源:以南美洲东北部的图马科-曼格拉雷斯盆地为例

CT&F - Ciencia, Tecnología y Futuro Pub Date : 2020-06-30 DOI: 10.29047/01225383.161

Eduardo López- Ramos

{"title":"Origin of a double forearc basin: The example of the Tumaco - Manglares basin, Northestern Southamerica","authors":"Eduardo López- Ramos","doi":"10.29047/01225383.161","DOIUrl":"https://doi.org/10.29047/01225383.161","url":null,"abstract":"The subsidence and uplift history of the forearc system of southwestern Colombia and northern Ecuador margin is complex and reveals several stages of deformation. The sequential stratigraphy of the forearc area shows the development of three megasequences (M1 to M3). The basal megasequence corresponds to the basement of the forearc, which was formed at the end of the Mesozoic and at the beginning of the Cenozoic and accreted against the Northwestern part of South America related to the accretion of the Late Cretaceous – Paleoceneoceanic plateau. This accretion occurred in a transpressional regime. The second megasequence is composed by deep water sediments, recording the transition between transpressional to compressional stages of the margin from the Late Eocene to the Middle Miocene. The third megasequence is characterized by shallow water sediments strongly constrained by the compressional stage of the margin and the uplift activity of the structural highs since the Late Miocene up to present. The structural geometry of the margin is characterized by basement thrusts that deformed the forearc crust. Westward, the forearc zone -according to the support of the overriding plate -is divided into mantle wedge and lower plate domains. The margin evolution suggests that the subducting plate geodynamical changes affect strongly the interplate coupling and mantle wedge and produce changes in the subsidence or uplift through the double forearc basin systems.","PeriodicalId":10745,"journal":{"name":"CT&F - Ciencia, Tecnología y Futuro","volume":"15 2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75556036","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: 2

Helical tubular photobioreactor design using computational fluid dynamics 利用计算流体动力学设计螺旋管式光生物反应器

CT&F - Ciencia, Tecnología y Futuro Pub Date : 2020-06-30 DOI: 10.29047/01225383.117

Arnold Garcia, Daniel A Antequera, J. Arango, C. A. Gómez‐Pérez, J. Espinosa

引用次数: 1

An additional layer of protection through superalarms with diagnosis capability 通过具有诊断能力的超级警报提供额外的保护层

CT&F - Ciencia, Tecnología y Futuro Pub Date : 2020-03-17 DOI: 10.29047/01225383.168

J. Vásquez-Capacho, Gustavo Pérez-Zúñiga, Y. Muñoz, A. Ospino

{"title":"An additional layer of protection through superalarms with diagnosis capability","authors":"J. Vásquez-Capacho, Gustavo Pérez-Zúñiga, Y. Muñoz, A. Ospino","doi":"10.29047/01225383.168","DOIUrl":"https://doi.org/10.29047/01225383.168","url":null,"abstract":"An alarm management methodology can be proposed as a discrete event sequence recognition problem where time patterns are used to identify the process safe condition, especially in the start-up and shutdown stages. Industrial plants, particularly in the petrochemical, energy, and chemical sectors, require a combined approach of all the events that can result in a catastrophic accident. This document introduces a new layer of protection (super-alarm) for industrial processes based on a diagnostic stage. Alarms and actions of the standard operating procedure are considered discrete events involved in sequences, where the diagnostic stage corresponds to the recognition of a special situation when these sequences occur. This is meant to provide operators with pertinent information regarding the normal or abnormal situations induced by the flow of alarms. Chronicles Based Alarm Management (CBAM) is the methodology used to build the chronicles that will permit to generate the super-alarms furthermore, a case study of the petrochemical sector using CBAM is presented to build the chronicles of the normal startup, abnormal start-up, and normal shutdown scenarios. Finally, the scenario validation is performed for an abnormal start-up, showing how a super-alarm is generated.","PeriodicalId":10745,"journal":{"name":"CT&F - Ciencia, Tecnología y Futuro","volume":"88 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78063325","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

Optimal shape parameter for meshless solution of the 2D Helmholtz equation 二维亥姆霍兹方程无网格解的最优形状参数

CT&F - Ciencia, Tecnología y Futuro Pub Date : 2019-11-11 DOI: 10.29047/01225383.178

Mauricio Alejandro Londoño-Arboleda, Hebert Montegranario-Riascos

{"title":"Optimal shape parameter for meshless solution of the 2D Helmholtz equation","authors":"Mauricio Alejandro Londoño-Arboleda, Hebert Montegranario-Riascos","doi":"10.29047/01225383.178","DOIUrl":"https://doi.org/10.29047/01225383.178","url":null,"abstract":"The solution of the Helmholtz equation is a fundamental step in frequency domain seismic imaging. This paper deals with a numerical study of solutions for 2D Helmholtz equation using a Gaussian radial basis function-generated finite difference scheme (RBFFD). We analyze the behavior of the local truncation error in approximating partial derivatives of the 2D Helmholtz equation solutions when the shape parameter of RBF varies. For discretization, we performed, by means of a classical numerical dispersion analysis with plane waves, a minimization of the error function to obtain local and adaptive near optimal shape parameters according to the local wavelength of the required solution. In particular, the method is applied to obtain a simple and accurate solver by using stencils which seven nodes on hexagonal regular grids, wich mitigate pollution-effects. We validated numerically that the stability and isotropy are enhanced with respect to Cartesian grids. Our method is tested with standard case studies and velocity models, showing similar or better accuracy than finite difference and finite element methods. This is an efficient way for interacting with inverse and imaging problems such as Full Wave Inversion.","PeriodicalId":10745,"journal":{"name":"CT&F - Ciencia, Tecnología y Futuro","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75119617","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: 3

Submarine canyon-fill reconstruction from integrated seismic-stratigraphic analysis – application to Banquereau formation, Scotian basin – offshore Canada. 地震-地层综合分析的海底峡谷充填重建——在加拿大近海斯科舍盆地Banquereau组的应用。

CT&F - Ciencia, Tecnología y Futuro Pub Date : 2019-11-11 DOI: 10.29047/01225383.119

Patricia Chajin-Ortiz, E. Illidge, S. Khurama

{"title":"Submarine canyon-fill reconstruction from integrated seismic-stratigraphic analysis – application to Banquereau formation, Scotian basin – offshore Canada.","authors":"Patricia Chajin-Ortiz, E. Illidge, S. Khurama","doi":"10.29047/01225383.119","DOIUrl":"https://doi.org/10.29047/01225383.119","url":null,"abstract":"Building geological models (integrating stratigraphic, structural and paleo-environmental 3D models) that allow the interpretation of sand bodies deposited by turbidity currents along submarine canyons or channels, is one of the most useful tools used by geoscientists for the definition of new drilling opportunities in both exploration and development phases. In this context, the integration of methodologies such as sequence stratigraphyand seismic attributes, together with well-log and core information, outline the basis for the interpretation of sand-body lithostratigraphy and chronostratigraphy. Similarly, these models allow the interpreter to reconstruct the depositional environment and deformation history of a sedimentary basin [1]. Based on a series of chronostratigraphic stages, this paper proposes a 3D model for the sedimentation history of the Banquereau Formation.This model is based on the integration of seismic stratigraphy, seismic attribute interpretation and well-log analysis. Also, a set of system tracts and corresponding transgression and regression phases were identified for the sedimentary interval of interest. The available dataset provided the information to identify the geometry and changes in the sedimentation patterns of the stratigraphic sequences from the Tertiary to the present, thus defining a 3D model of the sedimentological and structural architecture of this interval. Last but not least, theresulting 3D stratigraphic model made possible the identification and description of an amalgamated channel complex filling a submarine canyon associated with a fluvio-deltaic setting. This sort of analysis might be used as an analog for similar reservoirs, providing key insights and vital information for decision making.","PeriodicalId":10745,"journal":{"name":"CT&F - Ciencia, Tecnología y Futuro","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75721004","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

Thermohydraulic modeling in transient state for evaluation of pipeline shutdown and restart procedures 用于评估管道关闭和重新启动过程的瞬态热水力建模

CT&F - Ciencia, Tecnología y Futuro Pub Date : 2019-11-11 DOI: 10.29047/01225383.179

C. Nieto-Londoño, Carlos Andrés Bustamante-Chaverra, Jhon Anderson Buendía-García, L. Novoa, Joao Alexander García-Lázaro, Geoffrey Viviescas-Ibarra

引用次数: 0

Performance analysis of a commercial fixed bed downdraft gasifier using palm kernel shells 商用棕榈仁壳固定床下吸式气化炉的性能分析

CT&F - Ciencia, Tecnología y Futuro Pub Date : 2019-11-11 DOI: 10.29047/01225383.181

Arnaldo Verdeza-Villalobos, Y. A. Lenis-Rodas, Antonio Bula-Silvera, J. M. Mendoza-Fandiño, R. Gómez-Vásquez

引用次数: 5

Kinetic model for FAME production using inmobilized Lipase in a solvent- free system 固定化脂肪酶在无溶剂体系中生产FAME的动力学模型

CT&F - Ciencia, Tecnología y Futuro Pub Date : 2019-11-11 DOI: 10.29047/01225383.129

John Henry Castro Posada, A. A. R. Colorado

引用次数: 2

Electrochemical monitoring of a photocatalytic desulfurization process of a model liquid fuel 模型液体燃料光催化脱硫过程的电化学监测

CT&F - Ciencia, Tecnología y Futuro Pub Date : 2019-11-11 DOI: 10.29047/01225383.180

Lina Marcela López-Lozano, César Quiñones-Segura, Oscar Rodríguez-Bejarano

引用次数: 0