Results 51 to 60 of about 14,198 (283)

Impact de l’évolution de l’utilisation des terres sur la dégradation des ressources en sols dans le Rif Central méridional, Maroc

open access: yesRevue Marocaine des Sciences Agronomiques et Vétérinaires, 2021
Dans le Rif central au nord du Maroc, les écosystèmes forestiers ont subi une régression très forte au profit des zones agricoles. L’installation de la culture du cannabis au détriment de la forêt illustre les rôles importants des forêts sur le plan ...
M. EL MAZI, M. HMAMOUCHI, A. HOUARI
doaj  

Portable Breathing Monitoring With Phase‐Resolved Airflow Dynamics Enabled by a Dual‐Response Flexible PZT Sensor

open access: yesAdvanced Healthcare Materials, EarlyView.
A portable respiratory monitoring device based on a flexible PZT sensor captures pressure‐ and temperature‐related airflow responses in a single waveform. Polarity‐opposed piezoelectric and pyroelectric components generate a narrow transient spike and a broad quasi‐steady peak during both inhalation and exhalation. This dual‐component structure enables
Minyu Li   +7 more
wiley   +1 more source

Présentation et performances des techniques simplifiées du travail du sol

open access: yes, 1994
After a review of the main soil preparation types, various simplification techniques are compared. It has been observed that simplified techniques are characterized by a drop in manpower and energy needs.
Barthelemy, P.   +2 more
core  

Water Permeates and Plasticizes Amorphous Carbon Dots: Unraveling the Inner Accessibility of the Nanoparticles by Glass Transition Studies

open access: yesAdvanced Materials, EarlyView.
The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti   +8 more
wiley   +1 more source

Mesoporous Silica Nanoparticles in Biomedicine: Advances and Prospects

open access: yesAdvanced Materials, EarlyView.
Mesoporous silica nanoparticles offer unique properties like high surface area, tunable pores, and functionalization. They excel in drug delivery, tissue engineering, and stimuli‐responsive therapies, enabling targeted and controlled treatments. With roles in cancer therapy and diagnostics, their clinical translation requires addressing challenges in ...
Miguel Manzano, María Vallet‐Regí
wiley   +1 more source

Extrait rapport annuel 1967 : IC-Travail du sol

open access: yes, 1967
Compte-rendu d'essais de travail du sol en terrains dunaires, sablo-limoneux et alluvionnaires : conséquences du non travail du sol, du labour, du scarifiage ou du sous solage en fin de saison des pluies (sols dunaires et sols alluvionaires) ou de saison
IRAT - FRA
core  

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Caractérisation de l'état de dégradation des sols du bassin versant de Zagota (Maroc) à l'aide d'indicateurs spectraux

open access: yesRevue Marocaine des Sciences Agronomiques et Vétérinaires, 2012
Les milieux arides et semi-arides sont vulnérables au processus de dégradation et d’extension de la désertification. Dans un tel environnement où la végétation est éparse, l’information spectrale générée par l’image satellitaire est souvent dominée par ...
E. BAHRI   +4 more
doaj  

Quelles sources cartographiques pour la définition des usages anciens du sol en France ?

open access: yesRevue Forestière Française, 2017
La délimitation de forêts dites anciennes, caractérisées par une longue continuité temporelle de l’état boisé, impose le recours à des sources cartographiques.
Xavier Rochel   +9 more
doaj   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

open access: yesAdvanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

Home - About - Disclaimer - Privacy