Results 51 to 60 of about 246,280 (321)

Experimental study and finite elementanalysis on freeze-thaw resistance of PE-ECC beams

open access: yesJournal of Hebei University of Science and Technology, 2022
In order to study the freeze-thaw resistance of polyethylene engineered cementitious composite (PE-ECC) beams,15 PE-ECC beams were tested with reference to the average lowest temperature in January of recent ten years in winter in Northwest China.The ...
Fengxia HAN, Xin GUO, Qing LIU
doaj   +1 more source

Longer Acting Injectable: Continuous, Linear Release of a Progestin Contraceptive From an Oxidized Porous Silicon Host

open access: yesAdvanced Healthcare Materials, EarlyView.
Progestin drugs are loaded into a mesoporous silicon dioxide host by melt‐infiltration. Drugs that decompose at or close to their melting point can be loaded by the addition of cholesterol, which acts as a melting point suppressor. High mass loading of the drug is achieved, and dissolution of the composite is controlled by the nanoscale properties of ...
Geoffrey Hollett   +13 more
wiley   +1 more source

Biomimetic Scaffolds with Dual Gradients of Biological Effectors for Tendon‐to‐Bone Repair

open access: yesAdvanced Healthcare Materials, EarlyView.
The authors have developed a biomimetic scaffold with dual gradients through a diffusion‐driven method. The scaffold features funnel‐shaped microchannels for cell infiltration, while the dual gradients synergetically induce the graded differentiation of mesenchymal stem cells into osteoblasts, chondrocytes, and tenocytes, allowing for a seamless ...
Min Hao   +3 more
wiley   +1 more source

Exploring the association between early childhood caries, malnutrition, and anemia by machine learning algorithm

open access: yesJournal of Indian Society of Pedodontics and Preventive Dentistry
Objective: The objective of this study was to determine the prevalence of early childhood caries in children with severe acute malnutrition (SAM) and also the hierarchy of association if any with malnutrition, anemia, and other risk factors with ECC ...
K Fasna   +3 more
doaj   +1 more source

Evaluación de un filtro percolador sin recirculación con medio de soporte en PVC para el tratamiento de aguas residuales combinadas (domésticas y pecuarias)

open access: yesI+D Revista de Investigaciones, 2017
La remoción de los contaminantes de un agua residual combinada (doméstica y pecuaria) considera la utilización de tecnologías de tratamiento, como los filtros percoladores, con lechos en policloruro de vinilo (PVC) y sin recirculación de efluentes, para ...
Yenny Tatiana Romero Ladino   +2 more
doaj   +1 more source

A Number-Theoretic Error-Correcting Code

open access: yes, 2015
In this paper we describe a new error-correcting code (ECC) inspired by the Naccache-Stern cryptosystem. While by far less efficient than Turbo codes, the proposed ECC happens to be more efficient than some established ECCs for certain sets of parameters.
B Chevallier-Mames   +11 more
core   +1 more source

Thermal Processing Creates Water‐Stable PEDOT:PSS Films for Bioelectronics

open access: yesAdvanced Materials, Volume 37, Issue 13, April 2, 2025.
Instead of using chemical cross–linkers, it is shown that PEDOT:PSS thin films for bioelectronics become water‐stable after a simple heat treatment. The heat treatment is compatible with a range of rigid and elastomeric substrates and films are stable in vivo for >20 days.
Siddharth Doshi   +16 more
wiley   +1 more source

Instruções de uso para 'o livro de Hilda' (1902), de João Kopke, aos mestres

open access: yesRevista Brasileira de História da Educação, 2015
Neste artigo, pretendemos apresentar o livro de Hilda – processo analytico da leitura, com data de 1902, que faz parte do acervo pessoal da família Köpke e que, provavelmente, não foi publicado. Trata-se de uma cartilha manuscrita, criada por João Köpke (
Norma Sandra de Almeida Ferreira   +1 more
doaj  

Siting Foreign Law: How Derrida Can Help [PDF]

open access: yes, 2011
Secondary spectrum access to TV white spaces is considered as a promising solution to relieve the spectrum shortage. In Europe, SE43 working group in CEPT is leading the discussion on the technical requirements for exploiting TV white spaces through the ...
Shi, Lei, Sung, Ki Won, Zander, Jens
core   +1 more source

Magnetically Controlled Reversible Photomagnetic Nanoactuators for Dynamic Contrast Enhancement in Optical Coherence Tomography

open access: yesAdvanced Materials, EarlyView.
Photomagnetic nanoactuators with ≈90% scattering efficiency in the second near‐infrared window are demonstrated to exhibit magnetic field‐controlled modulation of optical scattering and optical coherence tomography signals. These nanoactuators are reversibly assembled and disassembled under the external magnetic field modulation, enabling enhanced ...
Myeongsoo Kim   +5 more
wiley   +1 more source

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