Results 141 to 150 of about 289,538 (285)

Celdas combustibles: una opción para la transformación descentralizada de energía

open access: yesRevista Científica de Ingeniería Energética, 2011
La solución a los problemas energéticos actuales y al progresivo deterioro del medio ambiente está estrechamenterelacionada con la elección de sistemas energéticos alternativos que sean capaces de garantizar el ...
Julio Alberto Gavilán Yodú
doaj  

Program for developing and implementing a new approach to designing for fire safety in buildings [PDF]

open access: yes
The traditional method of providing for fire safety in buildings through reliance on codes and standards that prescribe specific measures to be taken in the design and construction of buildings to minimize the potential for a fire occurring and to ...

core   +1 more source

Systematically Engineering for Efficient Production of 3‐Methyl‐1‐Butanol in Escherichia coli

open access: yesAdvanced Science, EarlyView.
An integrated metabolic engineering strategy was established for high‐level 3‐methyl‐1‐butanol biosynthesis in Escherichia coli. Molecular dynamics‐guided semi‐rational engineering of dihydroxyacid dehydratase uncovered and relieved key catalytic bottlenecks, while adaptive laboratory evolution enhanced strain robustness.
Nanfei Geng   +6 more
wiley   +1 more source

Thermal Cyclotrimerization Bridges Polymer‐Filler Interfaces for High‐Performance CO2 Separation Membranes

open access: yesAdvanced Science, EarlyView.
Thermal cyclotrimerization of nitriles converts interfacial discontinuity in MAF‐stu‐1/PIM‐1 MMMs into a continuity‐enhanced junction. Triazine–Zn2+ coordination between TR‐PIM chains and MAF‐stu‐1, together with hydrogen bonding and π–π stacking, lowers interfacial tension and builds selective CO2 pathways, enabling > 10 000 barrer CO2 permeability ...
Zhihong Lin   +7 more
wiley   +1 more source

ÓXIDO MIXTO DE Co-Mg-Al EN LA OXIDACIÓN DE COVs

open access: yesRevista de Investigaciones Universidad del Quindío, 2013
Se emplea el método de síntesis de autocombustión para obtener un óxido mixto de cobalto el cual se evalúa en reacciones de oxidación catalítica de dos COVs, el tolueno y el 2-propanol, y en la mezcla de los mismos.
María Haidy Castaño   +2 more
doaj  

Interfacially Coupled and Synergistic Effect of Ag/Co3O4‐C Nanocomposites for Enhanced Oxygen Reduction (ORR) and Evolution (OER) Reaction

open access: yesAdvanced Science, EarlyView.
Ag/Co3O4–C nanocomposites display well‐resolved lattice fringes and synergistic Ag/Co3O4 heterointerfaces that enhance charge transfer and active‐site exposure. The structural design enables superior bifunctional ORR/OER performance in alkaline media by promoting efficient adsorption and turnover of oxygen intermediates within an optimized ...
Adnan Qaseem   +8 more
wiley   +1 more source

Cálculo de los índices de consumo energéticos en la Panificadora Toyo

open access: yesRevista Científica de Ingeniería Energética, 2011
En medio de la política nacional de ahorro y conservación de portadores energéticos se ubica este trabajo,realizado en la Panificadora Toyo de la Ciudad de La Habana.
Marta Domingo Montané   +2 more
doaj  

A Novel Co3O4@Co3(HITP)2‐Based Sensor for Low‐Temperatures H2S Detection: Fabrication, Performance, and Preliminary Exploration in Monitoring Pork Spoilage

open access: yesAdvanced Science, EarlyView.
Hybrid Co3O4@Co3(HITP)2‐based chemiresitor was constructed for hydrogen sulfide detection at low‐temperature, which presented excellent sensing performance at room and refrigerant temperature. A proof of concept was conducted by monitoring hydrogen sulfide released from pork spoilage at both temperature using a portable device with a smartphone ...
Yongjiao Sun   +9 more
wiley   +1 more source

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

open access: yesAdvanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas   +6 more
wiley   +1 more source

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