Results 141 to 150 of about 1,047,460 (310)

Solutions to Soil Problems: IV. Soil Structure

open access: yes, 2010
Soil structure refers to the combination of primary soil particles – sand, silt and clay – into larger units called aggregates or clods. Aggregates are commonly seen when a soil is tilled or disturbed.
Koenig, Rich, Cerny, Teresa
openaire   +1 more source

Hyperelastic Starch Hydrogel Configures Edible and Biodegradable All‐Components for Soft Robots

open access: yesAdvanced Science, EarlyView.
Hyperelastic starch hydrogel is tailored via a phase separation strategy of solvent‐antisolvent co‐modulation. The mechanical performance of starch hydrogel is widely tuned with maximum strains: 194.4–361.4%; maximum tensile stresses: 34–192 kPa; and Young's moduli: 36.0–205.8 kPa. Notably, the hydrogel achieves complete soil degradation within 24 days
Siyu Yao   +7 more
wiley   +1 more source

Chemical composition of the humus layer, mineral soil and soil solution of 200 forest stands in the Netherlands in 1995 [PDF]

open access: yes
A nationwide assessment of the chemical composition of the soil solid phase and the soil solution in the humus layer and two mineral layers (0-10 cm and 10-30 cm) was made for 200 forest stands in the year 1995.
Leeters, E.E.J.M., Vries, W., de
core   +1 more source

Cattle trampling reduces the risk of nitrate leaching in organic dairy rotations [PDF]

open access: yes, 2010
Organic dairy farming is characterized by grazing cows in contrast to Danish conventional farms where the majority of cows are kept indoors. Cattle trampling reduces the finer macroporosity in the top 5-10 cm of the soil.
Eriksen, J.   +3 more
core  

Top‐Down Fabricated Wood‐Derived Pressure and Strain Sensors: A Review

open access: yesAdvanced Science, EarlyView.
This review focuses on wood‐derived pressure/strain sensors fabricated via top‐down strategies. It analyzes wood's structural composition, examines processing techniques, discusses sensor types and sensing mechanisms, and reviews existing research. The article concludes with future directions for enhancing performance and scalability.
Yi Ren   +8 more
wiley   +1 more source

La disolución del suelo en comunidades de Erica andevalensis del entorno de las minas de Riotinto (Huelva, SO España) Soil solution in soils under Erica andevalensis formations in the Riotinto mining area (Huelva, SW Spain)

open access: yesRevista de Ciências Agrárias, 2010
Erica andevalensis es un brezo endémi­co de la Faja Pirítica Ibérica, catalogado en peligro de extinción por la Junta de Andalucía (Decreto 104/1994, Ley 8/2003), que crece espontáneamente en áreas mineras. El estudio de la disolución de los suelos puede
E. Buján   +3 more
doaj  

Modifications of chemical properties and copper speciation in the solution of field-collected rhizosphere [PDF]

open access: yes, 2015
Among the potential soil drivers of trace element phytoavailability, the ability of plant roots to alter the chemical properties and consequently trace element speciation in the solution of their rhizosphere remained comparatively poorly addressed.
Bravin, Matthieu   +4 more
core  

Edible and Recyclable Gelatin‐Based Electronics for High‐Precision Health and Environmental Monitoring

open access: yesAdvanced Science, EarlyView.
An edible and recyclable composite film composed of gelatin and activated charcoal is presented for multifunctional health and environmental monitoring. The edible films exhibit tuneable mechanical and electrical properties, along with multimodal sensing capabilities for strain, humidity, and temperature. The composite film is degradable and recyclable,
Ming Dong   +6 more
wiley   +1 more source

A Degradable Bioinspired Flier with Aerogel‐Based Colorimetric Sensors for Environmental Monitoring

open access: yesAdvanced Science, EarlyView.
Biodegradable fliers are developed inspired by Tipuana tipu samaras, integrating cellulose nanocrystal aerogel (CNCa) sensors loaded with natural dyes for pH and ammonia detection. The lightweight, degradable fliers mimic natural morphology and aerodynamics, offering an eco‐friendly, scalable solution for in situ environmental monitoring after passive ...
Gianpaolo Gallo   +4 more
wiley   +1 more source

Generalized Mechanism Model for Ecosystem Hysteresis

open access: yesAdvanced Science, EarlyView.
A simplified model examines ecosystem transitions into alternative states after disturbances by leveraging positive and negative feedbacks. It identifies critical tipping points and quantifies hysteresis. Tests conducted on lakes, grasslands, and pitcher‐plant leaves align closely with empirical data and enable the prediction of recovery trajectories ...
Yanbin Hao   +9 more
wiley   +1 more source

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