Results 51 to 60 of about 150,384 (314)

Zein‐Based Adhesives: Sustainable Extraction and Application in Bioadhesive Technologies

open access: yesAdvanced Engineering Materials, EarlyView.
Zein is extracted from corn gluten meal using a simple and scalable process with high yield (~90%). The resulting protein is applied in bioadhesives modified with Ca2+ and Fe3+ ions, exhibiting substrate‐dependent adhesion. The findings demonstrate competitive bonding performance and highlight the role of ionic interactions in tuning adhesion ...
Paula Bertolino Sanvezzo   +3 more
wiley   +1 more source

Study of 9 Oak (Quercus castaneifolia) provenances performance in west of Guilan province [PDF]

open access: yesتحقیقات جنگل و صنوبر ایران, 2007
Genetic variation within population as a result of geographical variation is one of the important factors in forest tree improvement. Therefore investigation of genetic variation rate and its variability is necessary for each species that is used in ...
Sooran Naghshi   +5 more
doaj  

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

open access: yesAdvanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar   +7 more
wiley   +1 more source

Study of flora, life form and chorology of plant Species in Zarivar Region of Marivan, Kurdistan [PDF]

open access: yesتاکسونومی و بیوسیستماتیک, 2016
Zarivar region, with about 12,000 km2 area, is located in the west of Iran, neighboaring the Marivan city. This region has a rich floral diversity due to some ecological factors such as: the average annual precipitation (about 997 mm/year), influence of ...
Mohamad Aref Tabad   +2 more
doaj   +1 more source

Forests: when natural regeneration is unrealistic [PDF]

open access: yesNature, 2019
Monoculture or mixed-species tree plantations could be better alternatives in highly degraded areas that are distant from native seed sources. Financial compensation for landowners who conserve carbon, water or biodiversity in regenerating forests might not match incomes from agriculture or commercial forestry.
Guariguata, M.R.   +3 more
openaire   +3 more sources

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

Measuring the conservation value of tropical primary forests : the effect of occasional species on estimates of biodiversity uniqueness [PDF]

open access: yes, 2010
Background Developing effective conservation plans for multi-functional landscapes requires an accurate knowledge of the relative conservation value of different land-uses.
Carlos A Peres   +12 more
core   +1 more source

Identification and prioritization of stepping stones for biodiversity conservation in forest ecosystems

open access: yesConservation Science and Practice
Habitat degradation and fragmentation are two of the main drivers for biodiversity loss. To mitigate the negative impact of fragmentation in forests, conservation targets are increasingly addressing connectivity to facilitate the independent movement of ...
Katharina Lapin   +3 more
doaj   +1 more source

Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi   +5 more
wiley   +1 more source

The impact of forest management on saproxylic beetles and other arthropods in a semi-deciduous forest in Southern Benin [PDF]

open access: yes, 2004
Tropical forest ecosystems worldwide are suffering from anthropogenic pressures leading to deforestation and forest degradation, and resulting in a loss of biodiversity.
Lachat, Thibault
core   +1 more source

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