Results 61 to 70 of about 396,733 (211)

Carbono orgánico del suelo en tres sistemas de producción ganadera del Valle del Patía – Colombia [PDF]

open access: yes, 2017
El suelo es un importante reservorio de carbono, lo captura a través de los aportes de materia orgánica (proveniente de las plantas y de los microorganismos) y almacena hasta el 70% del Carbono Orgánico (COS) del planeta, lo que contribuye ...
Albán López, Noé   +6 more
core   +1 more source

Los aportes de aerosoles afectan las propiedades ópticas de la materia orgánica disuelta en las aguas costeras del Mediterráneo Noroccidental [PDF]

open access: yes, 2017
10 pages, 6 figures, 1 table[EN] Aeolian inputs of organic and inorganic nutrients to the ocean are important as they can enhance biological production in surface waters, especially in oligotrophic areas like the Mediterranean.
Aparicio, Francisco Luis   +8 more
core   +1 more source

Space‐ and Time‐resolved Emission Features of Micro‐ and Nano‐sized Perylene‐based Zr Metal‐Organic Frameworks

open access: yesAdvanced Optical Materials, Volume 13, Issue 2, January 14, 2025.
The synthesis, structural characterization, and optoelectronic properties of a novel perylene‐based Zr metal‐organic framework (MOF) is reported here. Interestingly, a detailed study on the emissive features of micro‐ and nano‐sized crystalline samples of such material showed a strong dependence of the fluorescence, both in terms of its intensity and ...
Ignacio Romero‐Muñiz   +6 more
wiley   +1 more source

Emissions de compostos orgànics volàtils (COVs) associats al compostatge de residus urbans [PDF]

open access: yes, 2014
El procés de compostatge permet estabilitzar la matèria orgànica per tal que tingui una sortida com a fertilitzant orgànic i obtenir un material que tanqui el cicle de la matèria orgànica.
Sanchez, Antoni
core   +1 more source

Hybrid Nanoparticles: Ni and Au Decorated with [FeFe]‐Hydrogenase Mimics

open access: yesChemCatChem, Volume 17, Issue 1, January 9, 2025.
Complexes [(μ‐S₂C₂H₄NHR)Fe₂(CO)₆] (R = p‐C₆H₄‐OCO(CH₂)₉Br (3a); R = p‐C₆H₄‐OCO(CH₂)₈CH₃ (3b)) are used as stabilizing agents in the synthesis of Ni@3 and Au@3 nanoparticles (NPs), which are the first reported stable metallic NPs decorated with [(μ‐S₂C₂H₄NHR)Fe₂(CO)₆] moieties.
Sergio Aguado   +9 more
wiley   +1 more source

INTERFERÊNCIAS ANTRÓPICAS NA RECARGA DE AQÜÍFEROS NO VALE DO CARIRI – CEARÁ

open access: yesRevista Águas Subterrâneas, 2008
Os parâmetros umidade, densidade aparente, porosidade total e condutividade hidráulica dos solos do vale do Cariri apresentaram boa correlação linear com o teor de matéria orgânica.
Sanne Anderson de Moura Araújo   +3 more
doaj  

Micromorfologia de horizontes espódicos nas restingas do Estado de São Paulo

open access: yesRevista Brasileira de Ciência do Solo, 2012
Os solos de restinga são pouco estudados e conhecidos no Brasil. Neste trabalho, a micromorfologia de horizontes espódicos foi investigada em quatro locais do litoral do Estado de São Paulo (Bertioga, Ilha de Cananeia, Ilha do Cardoso e Ilha Comprida). A
Maurício Rizzato Coelho   +6 more
doaj   +1 more source

El futuro de la bioenergía en relación a la producción agrícola [PDF]

open access: yes, 2010
La “bioenergía” consiste en la utilización de la materia orgánica de origen biológico (biomasa) para fines energéticos, mediante diversos procesos de combustión.
Fernandez Gonzalez, Jesus
core   +1 more source

Electrochemical Deposition of Manganese Oxide on Paper‐Based Laser‐Induced Graphene for the Fabrication of Sustainable High‐Energy‐Density Supercapacitors

open access: yesAdvanced Sustainable Systems, Volume 8, Issue 12, December 2024.
An easy, fast, scalable, and energy‐efficient fabrication method utilizing electrochemical deposition of manganese oxide on paper‐based laser‐induced graphene is reported. The study demonstrates the potential application of these electrodes in degradable and flexible high‐energy density supercapacitors, paving the way for large‐scale production of ...
Maykel dos Santos Klem   +5 more
wiley   +1 more source

Evaluación de la actividad enzimática del suelo en un sistema de producción ganadero con diferentes usos de suelo en Pasto, Colombia [PDF]

open access: yes, 2018
Se evaluó la actividad de las enzimas ureasa y fosfatasa en un sistema ganadero con tres diferentes usos de suelo en la zona alto andina del municipio de Pasto (Nariño); los usos evaluados correspondieron a: sistema silvopastoril, pastura y bosque ...
Merchancano Torres, Viviana   +1 more
core  

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