Results 51 to 60 of about 40,217 (164)

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  

Unraveling water pathways and sources in leafless maples during early spring sap ascent

open access: yesNew Phytologist, Volume 247, Issue 3, Page 1172-1185, August 2025.
Summary Maple trees repair cold‐induced embolism by generating positive stem pressure during their leafless state, altering sap transport in ways that remain poorly understood. This xylem pressure also drives sap exudation, enabling maple sap harvest for syrup production.
Élise Bouchard   +4 more
wiley   +1 more source

Herramienta para la evaluación del riesgo de robo en el autotransporte de carga

open access: yesNova Scientia, 2014
Introducción: En México el robo se ha convertido en uno de los riesgos más importantes para la eficiencia y la competitividad de las cadenas de suministro.
Elizabeth de la Torre Romero   +4 more
doaj   +1 more source

Eine techno‐ökonomische Perspektive für die Elektroreduktion von CO2 zu Ameisensäure: Scale‐up‐Strategien zur industriellen Machbarkeit

open access: yesAngewandte Chemie, Volume 137, Issue 31, July 28, 2025.
Die aktuelle techno‐ökonomische Analyse der CO2‐Elektroreduktion zur Herstellung “grüner” Ameisensäure zeigt die wirtschaftliche Optimierung durch die Implementierung von Mehrfachzellenstapeln und positioniert sie als wettbewerbsfähige Alternative zu etablierten industriellen Methoden.
Urbain Nzotcha   +3 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

Das labile Lewis‐Paar H3P→AlCl3 als Reagenz für die Synthese von sterisch hochgradig gehinderten primären und sekundären Alkylphosphanen

open access: yesAngewandte Chemie, Volume 137, Issue 29, July 14, 2025.
The weak Lewis Pair H3P→AlCl3 can be conveniently prepared in a solvent as toluene (up to 4 M). Under ambient conditions and pure form, this adduct is a crystalline compound, which can be rather easily handled. It is an excellent reagent for the synthesis of especially sterically hindered alkyl phosphanes (R = tBu, Ad). The reaction is highly selective
Jan Oswald   +7 more
wiley   +1 more source

Portada y equipo de trabajo

open access: yesRevista Transporte y Territorio, 2014
Revista Transporte y territorio
doaj   +3 more sources

An Experimental Pilot Approach to Evaluate the Infrastructure Accessibility and Level of Service at Metro Station Platforms

open access: yesApplied Sciences
Metro stations are essential for daily commuting, but overcrowding due to increased demand can severely impact infrastructure quality and passenger experience.
Sebastian Seriani   +9 more
doaj   +1 more source

Equipo de Trabajo

open access: yesRevista Transporte y Territorio, 2010
Revista Transporte y Territorio
doaj   +3 more sources

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