Results 71 to 80 of about 359,376 (304)

Urban nutrient balance for Bankok [PDF]

open access: yes, 2001
To enhance agricultural sustainability, former linkages between agriculture and urban waste production should be reintroduced. Therefore, to explore the options for recycling of nutrients from mega-cities, a nutrient balance model was developed.
de Vries, Fritz Pennig   +2 more
core  

Intrabandgap States Engineering in Functionalized Nanodiamond to Generate Solvated Electrons for Photocatalysis Under Solar Illumination

open access: yesAdvanced Functional Materials, EarlyView.
The negative electron affinity of diamond allows to emit highly reductive electrons. By introducing intra‐bandgap states and an optimized electron transfer mechanism by surface functionalization with Ru(bpy)3, the formation of solvated electrons is achieved upon solar irradiation.
Benjamin Kiendl   +20 more
wiley   +1 more source

An Ecological Risk Assessment of the Dianchi Basin Based on Multi-Scenario Land Use Change Under the Constraint of an Ecological Defense Zone

open access: yesLand
Ecological risk evaluation is a prerequisite for the rational allocation of land resources, which is of great significance for safeguarding ecosystem integrity and achieving ecological risk prevention and control.
Shu Wang   +8 more
doaj   +1 more source

Assessment of Impact on Landscape Development to Ecological Service Values and Goods Using Integrated Remote Sensing and GIS Techniques [PDF]

open access: yes, 2005
Amongst the impacts of converting forest to agricultural activities is the degradation of ecology service values and goods (ESVG). Impacts on ESVG can be devastating in environmental, biological, and socio-economics manners.
Hashim, Mazlan   +4 more
core  

Switchable Supramolecular Adhesive by Tuning Interfacial Bonding and Modulus

open access: yesAdvanced Functional Materials, EarlyView.
The supramolecular adhesive (HyDiP) shows reversible adhesion and recyclability. In the dehydrated state, it is dense, stiff (E ≈445 MPa), transparent, and provides strong bonding with adhesion strengths up to 4.65 MPa. In the hydrated state, it becomes porous, soft (E ≈0.11 MPa), and detaches easily, enabling sustainable high‐strength applications ...
Rumin Fu   +10 more
wiley   +1 more source

Micro and Nanostructural Diversity of Lizard Osteoderm Capping Tissue in Relation to Mechanical Performance

open access: yesAdvanced Functional Materials, EarlyView.
This study shows that lizard osteoderm capping tissue is a hyper‐mineralized hydroxyapatite layer consistently covering the superficial osteoderm surface in those species studied here, yet it varies greatly in morphology, nanostructure, and mechanical performance across species.
Adrian Rodriguez‐Palomo   +10 more
wiley   +1 more source

Cities and Satellites: Spatial Effects and Unobserved Heterogeneity in the Modeling of Urban Growth [PDF]

open access: yes
The confluence of factors driving urban growth is highly complex, resulting from a combination of ecological and social determinants that co-evolve over time and space.
Colin Vance, Rich Iovanna
core  

Focus groups of value concepts of producers: National Report UK [PDF]

open access: yes, 2005
The Organic Revision project was funded by the EU with the aim of supporting the further development of the EU Regulation 2092/91 on organic production. As part of the project focus groups were run in five European countries on value concepts of organic ...
Deane, Joanne, Padel, Susanne
core  

Metal–Organic Frameworks for Gaseous Pollutant Management: From Capture to Neutralization and Reutilization

open access: yesAdvanced Functional Materials, EarlyView.
This review maps how MOFs can manage hazardous gases by combining adsorption, neutralization, and reutilization, enabling sustainable air‐pollution control. Covering chemical warfare agent simulants, SO2, NOx, NH3, H2S, and volatile organic compounds, it highlights structure‐guided strategies that boost selectivity, water tolerance, and cycling ...
Yuanmeng Tian   +8 more
wiley   +1 more source

Agriculture production versus biodiversity protection: what role for north-south unconditional transfers? [PDF]

open access: yes
In developing countries, biodiversity is often threatened by the development of agricultural production because natural habitats are destroyed by the conversion of forests, wetlands or natural pastures into arable land.
Charles Figuières   +2 more
core  

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