Results 121 to 130 of about 746,766 (283)

Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection

open access: yesAdvanced Materials, EarlyView.
Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel   +7 more
wiley   +1 more source

The Contracts of Public Administrations

open access: yesRevista de la Facultad de Derecho de México, 2018
Practicamente no existe ningun aspecto de la teoria de los contratos que haya escapado a un analisis cuidadoso en terminos comparativos.  La renuencia tradicional de la ley administrativa a de verse obligada a cierta medida de homogeneizacion. Por lo tanto, es dificil explicar por que ningun tratado, libro o articulo extenso se ha dedicado a una ...
openaire   +3 more sources

Radiation‐Resistant Aluminum Alloy for Space Missions in the Extreme Environment of the Solar System

open access: yesAdvanced Materials, EarlyView.
A novel ultrafine‐grained aluminum crossover alloy exhibits unprecedented radiation resistance and mechanical stability under extreme irradiation doses up to 100 dpa. The exceptional resilience arises from thermodynamically stable T‐phase precipitates, enabling lightweight structural materials for next‐generation spacecraft and extraterrestrial ...
Patrick D. Willenshofer   +9 more
wiley   +1 more source

Improving the provision of financial services to micro-entrepreneurs, emerging farmers and agribusiness: Lessons from Kwazulu-Natal [PDF]

open access: yes
Three development finance institutions (DFIs) which operate in KwaZulu-Natal (KZN) province were assessed in 1996/97 to see how they could improve financial viability and outreach to emerging farmers, agribusiness and micro-entrepreneurs.
Darroch, Mark A.G.   +3 more
core   +1 more source

From Fiber Architecture to Functional Attachment: A Clinically Relevant, Mechanically Tunable Cardiac Patch

open access: yesAdvanced Materials, EarlyView.
A personalizable platform featuring a multi‐zonal cardiac patch design at clinical scale enables precise customization of fiber architecture at micro‐ and macroscale via melt electrowriting. Distinct scaffold zones support cell alignment with mechanical force transfer and epicardial attachment.
Johannes Braig   +31 more
wiley   +1 more source

Administrative Management Capacity in Out-of-School Time Organizations: An Exploratory Study [PDF]

open access: yes, 2008
Based on interviews with sixteen high-quality out-of-school time (OST) program providers, identifies the managerial and administrative needs of OST nonprofits such as financial and human resources management and information technology.
John Summers, Lana Price
core  

Soft Ionic and Electronic Triboelectric Nanogenerators: Toward Attachable and Implantable Biomedical Applications

open access: yesAdvanced Materials, EarlyView.
This review provides an overview of triboelectric nanogenerator (TENG)–based biomedical applications by classifying studies into electronic and ionic systems across attachable and implantable platforms. It summarizes key material choices, device structures, and working mechanisms that characterize current TENG‐based research, and outlines six future ...
Kyongtae Choi   +12 more
wiley   +1 more source

Federal Employees Health Benefits (FEHB) Program: An Overview [PDF]

open access: yes, 2015
[Excerpt] The Federal Employees Health Benefits (FEHB) Program provides health insurance to federal employees, retirees, and their dependents. This report provides a general overview of FEHB.
Blom, Kirstin B, Cornell, Ada S
core   +3 more sources

Machine Learning‐Informed Nano Co‐Assembly Inhibits Fibroblast Activation Protein and Improves Drug Delivery in Fibrotic Tissue

open access: yesAdvanced Materials, EarlyView.
We present SP‐13786 (SP), a fibroblast activation protein (FAP) inhibitor, as a universal excipient for co‐assembling stable drug nanoparticles (SCAN). Assembly mechanism deciphered by molecular dynamics and explainable machine learning, SCAN attenuate fibrosis‐induced stromal barriers, enhances lesional drug accumulation, and improves therapeutic ...
Zehua Liu   +15 more
wiley   +1 more source

Decoding High‐voltage LiCoO2: From Degradation to Stabilization Toward Durable Li‐ion Batteries

open access: yesAdvanced Materials, EarlyView.
This review systematically addresses the degradation mechanisms and stabilization strategies for high‐voltage LiCoO2 cathodes. Key enhancement approaches including foreign‐ion doping, surface modifications, structural design, and electrolyte optimization are critically assessed.
Zezhou Lin   +6 more
wiley   +1 more source

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