Results 51 to 60 of about 1,253,056 (320)

Update: Enzymatische Synthese für industrielle Anwendungen

open access: yesAngewandte Chemie, EarlyView.
Die Biokatalyse hat sich zu einer nachhaltigen und wettbewerbsfähigen Alternative zur herkömmlichen chemischen Synthese entwickelt und ermöglicht die enzymbasierte Herstellung nicht nur von chemischen Grundstoffen, sondern auch von (nicht natürlichen) Aminosäuren, (seltenen) Zuckern und synthetischen Nukleotiden.
Thomas Bayer   +4 more
wiley   +1 more source

Sistema de transporte urbano de pasajeros de la ciudad de Rosario, Argentina

open access: yesUrbano, 2003
El presente artículo sintetiza el trabajo desarrollado por la Comisión Interdisciplinaria de Transporte, conformada en el marco de la Secretaría de Servicios Públicos de la Municipalidad de Rosario, con el objeto de planificar el Sistema de Transporte y ...
Comisión Interdisciplinaria de Transporte
doaj  

ATRIBUTOS QUALITATIVOS E FATORES DE SATISFAÇÃO COM O TRANSPORTE PÚBLICO URBANO POR ÔNIBUS

open access: yesContextus, 2019
O crescimento das cidades tem influenciado a mobilidade urbana. Os meios de transporte coletivo representam uma maneira de amenizar os problemas de locomoção, sendo a satisfação dos usuários um dos principais indicadores da qualidade do serviço prestado.
Elaine Gorgen Strehl   +2 more
semanticscholar   +1 more source

Ultrafast Organic Emulsion‐Based Synthesis of High‐Performance Cathode Materials for Rechargeable Batteries

open access: yesBatteries &Supercaps, EarlyView.
An organic emulsion‐based fabrication method of cathode materials which drastically reduces synthesis times and energy consumption in comparison with other established synthesis routes is presented, providing materials with excellent electrochemical properties.
Francisco J. Garcia‐Garcia   +10 more
wiley   +1 more source

The Impact of Oil Viscosity and Fuel Quality on Internal Combustion Engine Performance and Emissions: An Experimental Approach

open access: yesLubricants
The automotive industry faces increasing challenges due to fuel scarcity and pollutant emissions, necessitating the implementation of strategies that optimize engine performance while minimizing the environmental impact.
Milton Garcia Tobar   +3 more
doaj   +1 more source

Sistema de transporte público de pasajeros, su encadenamiento y desplazamiento hacia el comercio [PDF]

open access: yesRevista Ingeniería UC, 2018
En este artículo se analiza la reducción de pasajeros en el transporte público de Santo Domingo de Los Colorados, (Ecuador), la dinamización del comercio de bienes de consumo como resultado de la desconcentración de la ciudad, la nueva construcción de ...
Diego López C.   +3 more
doaj  

La inseguridad en el transporte público del Área Metropolitana de Buenos Aires. Experiencias y percepciones de mujeres y varones

open access: yesTerritorios, 2018
El trabajo busca visibilizar una forma de la inseguridad ciudadana aun no analizada en profundidad: aquella en el transporte público. Si bien, la vulneración de la seguridad es un condicionante socioeconómico y espacial que limita el acceso a los bienes,
L. Pereyra, Andrea Gutiérrez, M. Nerome
semanticscholar   +1 more source

Transporte membranar [PDF]

open access: yes, 2011
Recurso em formato vídeo para apoio a aprendizagem de conteúdos das ciências biológicas: "Transporte de membrana plasmática".info:eu-repo/semantics ...
Nicolau, Paula Bacelar
core  

Improving the Efficiency of a Bioreactor Equipped With Mixed‐Flow Impellers

open access: yesChemical Engineering &Technology, EarlyView.
The present work investigated the biological performance of mixed‐flow impellers. To the authors’ knowledge, this is the first experimental study on such impellers in a fermentation process using A. vinelandii, which was chosen as a microorganism due to its high oxygen demand.
David Posadas‐Navarro   +6 more
wiley   +1 more source

Physics-Informed Neural Networks for the Structural Analysis and Monitoring of Railway Bridges: A Systematic Review

open access: yesMathematics
Physics-informed neural networks (PINNs) offer a mesh-free approach to solving partial differential equations (PDEs) with embedded physical constraints. Although PINNs have gained traction in various engineering fields, their adoption for railway bridge ...
Yuniel Martinez   +4 more
doaj   +1 more source

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