Results 131 to 140 of about 8,091,828 (309)

Smart‐Release Ion‐Exchanged Ca‐Montmorillonite for Corrosion Protection of AA2024 Aluminium Alloy

open access: yesAdvanced Materials Interfaces, EarlyView.
Smart‐release anticorrosion pigments based on Zn‐ and Mn‐modified montmorillonite were developed by ion exchange of Ca‐montmorillonite and evaluated for the protection of AA2024 aluminium alloy in artificial acid rain. Both modified pigments provided effective corrosion inhibition, with Zn‐modified montmorillonite (Zn‐MMT) achieving an inhibition ...
Sergiy Korniy   +2 more
wiley   +1 more source

Propriedades físico-mecânicas da madeira de canafístula aos 10 anos de idade Physical and mechanical properties of 10 years old wood trees of canafístula

open access: yesCiência Rural, 2010
A presente pesquisa objetivou caracterizar as propriedades físico-mecânicas da madeira de canafístula (Peltophorum dubium (Spreng.) Taub.) proveniente de árvores com 10 anos, por meio da determinação da massa específica básica, da retratibilidade, do ...
Magnos Alan Vivian   +5 more
doaj  

Gravity Models of the Intra-EU Trade: Application of the Hausman-Taylor Estimation in Heterogeneous Panels with Common Time-specific Factors [PDF]

open access: yes
In this paper we follow recent developments of panel data studies and explicitly allow for the existence of unobserved common time-specific factors where their individual responses are also allowed to be heterogeneous across cross section units.
Laura Serlenga, Yongcheol Shin
core  

Programmable Variable‐Stiffness Multilayer Elastomer Composites With High‐Aspect‐Ratio Low‐Melting‐Point Alloy Inclusions

open access: yesAdvanced Materials Technologies, EarlyView.
High‐aspect‐ratio low‐melting‐point alloy inclusions are embedded within multilayer silicone laminates to create thermally programmable stiffness. Sequential activation of alloy‐rich layers produces four distinct mechanical states and reconfigures tendon‐driven actuator trajectories under the same load.
Palpolage Don Shehan Hiroshan Gunawardane   +4 more
wiley   +1 more source

Preference Erosion: The case of Bangladesh - A SUR-EC-AR Gravity Model of Trade [PDF]

open access: yes
This paper analyses the impact of preference erosion on Bangladesh’s clothing industry coming from both the ATC quotas phasing-out and the reduction on MFN tariffs under NAMA negotiations. First, it undertakes a numerical exercise to estimate the effects
Erika Vianna Grossrieder
core  

Moisture‐Adaptive Triboelectric Materials and Platforms: Design Strategies, Performance Enhancement, and Applications in Energy Harvesting and Wearable Electronics

open access: yesAdvanced Materials Technologies, EarlyView.
This review summarizes moisture‐adaptive strategies that enable triboelectric nanogenerators (TENGs) to operate across diverse moisture conditions. It examines moisture‐management methods, including exclusion, directional transport, removal, and utilization, with charge‐regulation approaches based on interfacial, dielectric, and structural engineering.
Junzhe Gan   +4 more
wiley   +1 more source

Integrated Nutrient Management Enhances Potato Yield and Quality Under Acidic Soil Conditions

open access: yesFood and Energy Security
Soil acidity and unbalanced fertilization constrain potato yield and processing quality in Kenya's highlands. This study evaluated the effects of organic manure, lime, and mineral fertilizers applied alone or in combination on potato yield and tuber ...
Emmanuel R. Mwakidoshi   +7 more
doaj   +1 more source

Zero‐Waste Manufacturing of Ophthalmic Lenses by Direct Fluidic Shaping in Arbitrary Domains

open access: yesAdvanced Materials Technologies, EarlyView.
Conventional ophthalmic lens manufacturing discards up to 97% of material through subtractive processes. The Cookie Cutter algorithm extends Fluidic Shaping to arbitrary rim geometries. The framework prescribes a spatially varying boundary height that, under neutral buoyancy and surface tension, shapes curable polymer into spherocylindrical lenses that
Yotam Katzman   +6 more
wiley   +1 more source

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