Artículo en revista de investigación: Envíos recientes
Mostrando ítems 741-760 de 1091
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Corotating binary systems of identical Kerr-Newman black holes
(2020-11-05)In the present paper binary configurations of identical corotating Kerr-Newman black holes separated by a massless strut are derived and studied. After solving the axis conditions and establishing the absence of magnetic ... -
The Frame of Nuclei on an Alexandroff Space
(2020-06-20)Let O𝑆 be the frame of open sets of a topological space S, and let 𝑁(O𝑆) be the frame of nuclei on O𝑆. For an Alexandroff space S, we prove that 𝑁(O𝑆) is spatial iff the infinite binary tree 𝒯2 does not embed ... -
Work Standardization and Anthropometric Workstation Design as an Integrated Approach to Sustainable Workplaces in the Manufacturing Industry
(2020-05-04)or workstation designs represent a risk factor for operators in assembly production lines. Anthropometric design of workstations facilitates the sustainable development of the workplace. This paper proposes a novel integrated ... -
Indicadores de agua y saneamiento en ISO 37120. Caso de estudio: Ciudad Juárez
(2019-12-07)Los recursos deben estar en armonía con la fuente de abastecimiento para ser sustentables. Los indicadores proveen una herramienta de evaluación del servicio y calidad de la entrega del recurso, para establecer políticas ... -
Intelligent Surveillance Systems: A Review
(2020-12-01)La seguridad es la percepción que se tiene en algún entorno, de estar protegido, sin miedo a sufrir algún daño. Este documento ofrece una revisión de literatura sobre el tema de seguridad inteligente, basada en técnicas ... -
Burnout Syndrome in Police O cers and Its Relationship with Physical and Leisure Activities
(2020-08-03)No previous studies in Mexico have been found that jointly analyze physical and leisure activities as variables related to mental health in police o cers. This paper presents research on burnout in Mexican Police o cers. ... -
Análisis termodinámico del intercambiador de calor de un sistema ORC para el aprovechamiento de calor residual en procesos industriales
(2019-07-01)En este trabajo se presenta la implementación de un sistema basado en ciclo Rankine orgánico acoplado a una descarga de calor de un proceso industrial. El calor desechado se utiliza como fuente energética de entrada en un ... -
Understanding dust sources through remote sensing: Making a case for CubeSats
(2020-10-05)Abstract: Dust sources have been revealed through remote sensing, first regionally by ~1° resolution sensors (TOMS), then at sub-basin scale by moderate-resolution sensors (MODIS). Sensors with higher spatial resolution ... -
Geometric considerations for the 3D printing of components using fused filament fabrication
(2020-06-30)Demand in 3D printing products using fused filament fabrication (FFF) in industry has been growth a lot with 55% in development of prototypes, 43% in production, and 41% in conceptual models for testing. However, information ... -
Convolutional Neural Network in a Pseudo-Distributed Environment for Classification of Chest X-Ray Images of Patients with Pneumonia
(2020-05-01)In recent years, there has been an increase in the volume of medical data, generating hundreds of terabytes (TB)/petabytes (PB) of data from different sources. This has led to the emergence of innovative technologies such ... -
Exact analytic solution of an unsolvable class of first Lane–Emden equation for polytropic gas sphere
(2020-07-24)This article provides for thefirst time a general analytical solution to the Lane-Emden equation of thefirst kind.So far only three known analytical solutions are found in the literature, for the following values ofn: 0, ... -
Mathematical help-seeking: observing how undergraduate students use the Internet to cope with a mathematical task
(2020-01-07)We report on a study focused on identifying how undergraduate students make use of the Internet as a source of help to solve their mathematical queries. In particular, with the help of monitoring software, we observe how ... -
Environmental impact of wine fermentation in steel and concrete tanks
(2020-08-10)Wine industries commonly use concrete and stainless-steel tanks in fermentation, but the selection of a container depends on factors such as price, installation costs, requirements, maintenance costs, and monitorability. ... -
A Review of Carpal Tunnel Syndrome and Its Association with Age, Body Mass Index, Cardiovascular Risk Factors, Hand Dominance, and Sex
(2020-05-18)Carpal tunnel syndrome (CTS) is one of the most common compressive, canalicular neuropathies of the upper extremities, causing hand pain and impaired function. CTS results from compression or injury of the median nerve at ... -
Effect of ICT integration on SC flexibility, agility and company’ performance: the Mexican maquiladora experience
(2019-06-24)s article reports a structural equation model (SEM) with four latent variables to measure the relationship between information and communication technologies (ICT) integration with supply chain flexibility, supply chain ... -
Procesos de Oxidación Avanzada y Electroquímicos para Remover Edulcorantes Artificiales del Agua
(2020-01-31)El objetivo de la presente revisión es presentar investigaciones recientes sobre la remoción de algunos edulcorantes —reconocidos como contaminantes emergentes— del agua o matrices acuosas, utilizando los Procesos de ... -
Stress-Based Weibull Method to Select a Ball Bearing and Determine Its Actual Reliability
(2020-11-16)Since the designed bearing’s reliability of 90% was determined in a lab environment, it does not represent the actual used environment. In this paper, a new methodology to determine the actual reliability that corresponds ... -
Corotating dyonic binary black holes
(2020-11-12)This paper is dedicated to derive and study binary systems of identical corotating dyonic black holes separated by a massless strut—two 5-parametric corotating binary black hole models endowed with both electric and magnetic ... -
Fatigue-Life Prediction of Mechanical Element by Using the Weibull Distribution
(2020-09-13)Applying Goodman, Gerber, Soderberg and Elliptical failure theories does not make it possible to determine the span of failure times (cycles to failure-Ni) of a mechanical element, and so in this paper a fatigue-life/Weibull ... -
News Classification for Identifying Traffic Incident Points in a Spanish-Speaking Country: A Real-World Case Study of Class Imbalance Learning
(2020-09-09)‘El Diario de Juárez’ is a local newspaper in a city of 1.5 million Spanish-speaking inhabitants that publishes texts of which citizens read them on both a website and an RSS (Really Simple Syndication) service. This ...