Results 71 to 80 of about 8,731,572 (183)

Topology‐based Visual Analysis of Hydrothermal Plumes

Computer Graphics Forum, EarlyView.
Abstract Hydrothermal plumes are turbulent structures of intense heat and mineral smoke that rise and disperse into the deep ocean. Existing models generally characterize these systems as a single axisymmetric plume originating from a point source. However, this assumption breaks down in weakly venting, spatially distributed systems, where low‐flux ...
Adhitya Kamakshidasan, Tushar Jain, Karen Bemis, Valerio Pascucci   +3 more
wiley   +1 more source

A Comparative User Study on Control‐Flow Visualizations of Event Log Data

Computer Graphics Forum, EarlyView.
This paper compares seven commonly used control‐flow visualizations using a formal user study with 48 participants. Directly‐Follows Graphs (DFGs), Petri nets, Business Process Model and Notations, Process trees, variant timelines, Icicle plots, and Sankey visualizations are evaluated on their performance on different tasks, understandability, and user
S. van der Linden, M. C. Willemsen, M. D. Brunings, A. Vilanova, S. van den Elzen   +4 more
wiley   +1 more source

Análisis de Flujo AC Aplicados a un Sistema Eléctrico de Potencia

Ingenio
En la actualidad, la carrera de Ingeniería Eléctrica en la Universidad Politécnica Salesiana, sede Guayaquil campus Centenario, se enfrenta a limitaciones de recursos para enseñar el análisis de corriente alterna en Sistemas Eléctricos de Potencia. Este
Alexander Emanuel Torres Romero, David Humberto Cárdenas Villacres, Raquel de los Angeles Salas Ibarra   +2 more
doaj   +1 more source

Potential of organogel‐based colloidal hydrogels for new cosmetic formulations

International Journal of Cosmetic Science, EarlyView.
Colloidal hydrogels are formed by combining anionic, cationic, or nonionic surfactants with two oils of cosmetic interest: sweet almond oil and phytosqualane. These systems are obtained through hot emulsification followed by cooling, which leads to the aggregation of gel‐like particles.
Andrea Gregorio Gomes, Lea Broche, Bruno Payre, Emile Perez, Celine Picard, Sophie Franceschi   +5 more
wiley   +1 more source

Evaluación de materiales en la zona de la sabana de Bogotá como medios filtrantes para aguas residuales

Revista Científica, 2011
El propósito de la investigación se centró tanto en la evaluación como en la comparación de materiales filtrantes convencionales y no convencionales en sistemas percoladores de aguas residuales. Para ello se realizaron ensayos, en un módulo experimental,
Helmut Espinosa García, Vilma Hernández Montaña, Nelly P. Lozano Puentes, Johana Tavera Tavera, Alexis Cervera Bonilla, Adriana Granja Rodríguez, Didier Yagüará   +6 more
doaj   +1 more source

Miners' Reward Elasticity and Stability of Competing Proof‐of‐Work Cryptocurrencies

International Economic Review, EarlyView.
ABSTRACT Proof‐of‐Work cryptocurrencies employ miners to sustain the system through algorithmic reward adjustments. We develop a stochastic model of the multicurrency mining and identify conditions for stable transaction speeds. Bitcoin's algorithm requires hash supply elasticity <$<$1 for stability, while ASERT remains stable for any elasticity and ...
Kohei Kawaguchi, Junpei Komiyama, Shunya Noda   +2 more
wiley   +1 more source

Disminución del módulo dinámico de la madera por exposición al fuego. Evaluación por ondas de esfuerzo.

Memoria Investigaciones en Ingeniería, 2018
La madera es un material combustible. Por lo tanto, el diseño arquitectural y el cálculo ingenieril requieren de información experimental sobre parámetros para la fabricación de productos o estructuras de madera. El objetivo de la investigación fue medir
Javier Ramón Sotomayor Castellanos
doaj  

Impacto de uma intervenção educativa sobre segurança do paciente para residentes em anestesiologia [PDF]

Revista Brasileira de Educação Médica
RESUMO Introdução: A matriz de competências dos programas de residência médica em anestesiologia do Brasil apresenta como objetivo específico “realizar a anestesia com segurança em todas as suas etapas”, cujos elementos para a implementação de um ...
Kariny Sheyla Rodrigues Maranhão, Cristiane Ribeiro de Melo Lino, Ramon Arruda Câmara Santos, Délio Henrique Vieira da Silva, Marise Reis de Freitas   +4 more
doaj   +1 more source

Marchenko–Pastur Laws for Daniell Smoothed Periodograms

Journal of Time Series Analysis, EarlyView.
ABSTRACT Given a sample X0,…,Xn−1$$ {X}_0,\dots, {X}_{n-1} $$ from a d$$ d $$‐dimensional stationary time series (Xt)t∈ℤ$$ {\left({X}_t\right)}_{t\in \mathbb{Z}} $$, the most commonly used estimator for the spectral density matrix F(θ)$$ F\left(\theta \right) $$ at a given frequency θ∈[0,2π)$$ \theta \in \left[0,2\pi \right) $$ is the Daniell smoothed ...
Ben Deitmar
wiley   +1 more source

Previsão do módulo dinâmico de misturas asfálticas brasileiras

Transportes, 2018
O módulo dinâmico |E*| é a propriedade de rigidez de misturas asfálticas mais utilizada como parâmetro de entrada no dimensionamento mecanístico-empírico de estruturas de pavimentos asfálticos. Apesar de bem estabelecido internacionalmente, ainda não há,
Beatriz Chagas Silva Gouveia, Jorge Barbosa Soares, Francisco Thiago Sacramento Aragão, Luciano Pivoto Specht   +3 more
doaj   +1 more source