Results 111 to 120 of about 666,855 (310)

L'Impacte ambiental dels abocadors de residus assimilables als urbans. Mètodes de detecció i correcció [PDF]

open access: yes, 1991
Després d'una introducció dedicada a centrar 1'exposició en l'impacte ambiental dels abocadors de residus industrials assimilables als urbans, es descriuen diversos métodes de detecció, control, prevenció i correcció dels diversos tipus d'impacte sobre ...
Feliubadaló, J.
core  

Dual‐Mode Film Based on Highly Scattering Nanofibers and Upcycled Chips‐Bags for Year‐Round Thermal Management

open access: yesAdvanced Functional Materials, EarlyView.
Intelligent radiative cooling devices, adaptable to various weather conditions, have the potential for year‐round energy savings. This study introduces a sustainable dual‐mode film made from polycaprolactone nanofibers and upcycled chip bags for effective thermal management.
Qimeng Song   +4 more
wiley   +1 more source

Evaluation of UV/TiO2/H2O2 photocatalysis for the removal of perfluorinated organic compounds from water

open access: yesScientific Reports
Conventional processes do not eliminate PFAS in wastewater treatment plants, so they are found in trace concentrations in wastewater and rivers. Perfluorinated organic pollutants (PFAs) are toxic and persistent, that have a significant risk to human ...
María Lizeth Marín Marín   +1 more
doaj   +1 more source

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu   +5 more
wiley   +1 more source

AIR POLLUTION MANAGEMENT IN TWO COLOMBIAN CITIES: CASE STUDY [PDF]

open access: yes
This document is a case study that focuses on the air pollution problems of Bogotá and Medellín. These are the largest; most populated and industrialized cities of Colombia.
Eduardo Uribe
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Limitantes actuales en el ejercicio del control fiscal ambiental [PDF]

open access: yes, 2014
El ejercicio del control fiscal ambiental en Colombia tiene establecidas funciones ambientales, sin embargo, se observa que en la actualidad, existen deficiencias en la aplicación de la norma, escases de fuentes doctrinales y falta de metodologías ...
Gutiérrez Reynales, Nohora Carolina
core  

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

open access: yesAdvanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana   +2 more
wiley   +1 more source

La contaminació d'aqüífers: aspectes legals i delimitació de responsabilitats [PDF]

open access: yes, 1998
La publificació dels aqüifers operada amb la Llei 29/1985, de 2 d'agost, d'aigües, ha esdevingut un fet cabdal per a la seva protecció. Fenòmens com la seva sobreexplotació, la salinització i contaminació per abocaments incontrolats es sotmeten al ...
Castañón, Òscar
core  

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

open access: yesAdvanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner   +9 more
wiley   +1 more source

Validation of Dynamic Natural Ventilation Protocols for Optimal Indoor Air Quality and Thermal Adaptive Comfort during the Winter Season in Subtropical-Climate School Buildings

open access: yesApplied Sciences
The need for energy-efficient buildings must be based on strong effective passive-design techniques, which coordinate indoor air quality and thermal comfort.
Antonio Sánchez Cordero   +2 more
doaj   +1 more source

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