Results 41 to 50 of about 60,962 (182)

GEOMORFOLOGÍA DE LA PLATAFORMA SOMERA DEL DEPARTAMENTO DE CÓRDOBA, COSTA CARIBE COLOMBIANA

open access: yesBoletín de Ciencias de la Tierra, 2007
La plataforma continental somera (PSC, profundidades < 10m) del Departamento de Córdoba se ubica entre los 8º 52´ 58” N, 76º 24´ 53” O y los 9º 20’ 42”N, 75º 47’ 55” O, inmediatamente al sur del Golfo de Morrosquillo, Costa Caribe colombiana.
Isabel Cristina Restrepo C.   +2 more
doaj  

Biodegradable 3D‐Printable and Coatable Antifouling Composites for Marine Applications

open access: yesAdvanced Functional Materials, EarlyView.
Marine biofouling damages submerged surfaces and raises greenhouse gas emissions. Biodegradable antifouling biocomposites were developed by hot‐mixing beeswax, Tween 80, and calcium stearate or stearic acid. Adjusting the component ratio enables processing via hot‐pressing, 3D‐printing, or dip‐coating.
Gabriele Corigliano   +17 more
wiley   +1 more source

Funções elíticas simétricas e aplicações em superfícies mínimas [PDF]

open access: yes, 2010
In 1989, H.Karcher elaborated a method for the construction of minimal surfaces, denominated reverse construction method given in [10]. In that work it was rewritten the theory of elliptic functions using an approach more geometrical than analytical ...
Hancco, Alvaro Julio Yucra
core  

Uma Representação de Weierstrass para Superfícies Mínimas em H3 e H2 × R. [PDF]

open access: yes, 2008
A representação deWeierstrass para superfícies mínimas em R3 e sua generalização a Rn mostra-se uma ferramenta muito útil no estudo de superfícies mínimas nestes espaços.
Roque, Alejandro Caicedo
core   +1 more source

Beyond Thin Film Limits—Superhard and Hydrogen‐Free Amorphous Carbon Coatings With Over 100 µm Thickness

open access: yesAdvanced Functional Materials, EarlyView.
For the first time, an extreme‐thick laser‐arc PVD ta‐C (DLC) coating exceeding 100 µm is demonstrated, opening up new possibilities for ultra‐high load bearing capacity. This superhard amorphous carbon architecture combines >50% sp3 bonding, robust adhesion and self‐supporting performance, shielding substrates from plastic flow under extreme contact ...
Martin Zawischa   +3 more
wiley   +1 more source

SUPERFÍCIES MÍNIMAS EM R3

open access: yes, 2013
Neste trabalho estudamos a teoria clássica das superfícies mínimas em R3, focando na representação de Enneper-Weierstrass e suas consequências. São exibidos vários exemplos, incluindo as superfícies de Jorge-Meeks e de Jorge-Xavier.
FELIPE DE ALBUQUERQUE MELLO PEREIRA
core  

Superfícies isotérmicas em R³ [PDF]

open access: yes, 2020
In this work we obtain a method of obtaining new examples of isothermal surfaces in R³ by applying the surface transformation in R³, due to Darboux and Bianchi, to a class of minimum surfaces.
Melo, Luiz Ricardo Abreu
core  

Near‐Infrared Light‐Activated Polydopamine Nanoparticles Conjugated With Transferrin Peptides for Enhanced Brain Accumulation

open access: yesAdvanced Healthcare Materials, EarlyView.
This study demonstrates that Tf‐PDA NPs combine a receptor‐mediated targeting with mild photothermal activation to enhance nanoparticle accumulation in the brain. NIR‐activated Tf‐PDA NPs increase BBB permeability to NPs in vitro and in vivo without inducing cytotoxicity or adverse immune responses.
Rafaela Ferrão   +5 more
wiley   +1 more source

Um estudo sobre superfícies em R3 [PDF]

open access: yes, 1985
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Florianópolis ...
Leivas, José Carlos Pinto
core  

Microfluidic Engineering of Microgels: A Review of Emerging Technologies, Materials, Fabrication Strategies, and Applications

open access: yesAdvanced Healthcare Materials, EarlyView.
Recent advances in microfluidic technologies for microgel fabrication are critically reviewed, highlighting the capabilities and limitations of major microfluidic platforms and discussing how platform design, material selection, and crosslinking strategies influence microgel architecture and functionality. Current challenges and future opportunities in
Afshin Abrishamkar   +6 more
wiley   +1 more source

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