Results 111 to 120 of about 741,238 (303)

Record Energy Storage Performance Metrics in Ferroelectric Hafnia‐Based Films through Heterostructure Design

open access: yesAdvanced Functional Materials, EarlyView.
Dielectric capacitors typically struggle to achieve both high energy storage density and high efficiency at applied voltages below 10 V. Here, we address this challenge by introducing a novel hybrid fluorite/perovskite heterostructure design that combines ultra‐high recoverable energy storage density with efficient energy release (Uf ≈ 1016 J/cm3), at ...
Ampattu R. Jayakrishnan   +10 more
wiley   +1 more source

Digital Assessment of Transverse Maxillary Arch Measurements for Predicting Arch Length: Implications for Early Orthodontic Diagnosis and Preventive Dentistry

open access: yesSulaimani Dental Journal
Objective: The aim of this study was to investigate the possible correlation between the maxillary dental arch length and three other transverse linear measurements on three-dimensional digital models for developing a predictive model to be applied ...
Arass Rauf
doaj   +1 more source

Parametric and Nonparametric Volatility Measurement [PDF]

open access: yes
Volatility has been one of the most active areas of research in empirical finance and time series econometrics during the past decade. This chapter provides a unified continuous-time, frictionless, no-arbitrage framework for systematically categorizing ...
Francis X. Diebold   +2 more
core  

Effect of time yield in concrete upon deformation stresses in a reinforced concrete arch bridge : a report [PDF]

open access: yes, 1935
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, University of Illinois at Urbana ...
Kluge, Ralph Wendel, 1905-   +1 more
core  

Silicified Wood‐Inspired, High‐Strength Fire‐Resistant Chitin‐Based Aerogels for Sustainable High‐Temperature Thermal Insulation

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by natural silicified wood, a biomimetic mineralized chitin‐derived aerogel is constructed. It can withstand 81 000 times its own weight, and its backside temperature is 130.4°C after exposure to ∼1300°C butane flame for 600 s, exhibiting high‐strength, fire‐resistance, and super thermal‐insulation properties.
Kai Xu   +11 more
wiley   +1 more source

Biting midges from Dominican amber : 3. Species of the tribes Culicoidini and Ceratopogonini (Diptera: Ceratopogonidae) [PDF]

open access: yes, 1998
The following 10 new species of biting midges are described and illustrated from Dominican amber: Culicoides (Oecacta) antilleanus, C. (0.) brodzinskyi, C. (0.) ambericus, C. (0.) hispanicolus, C. mammalicolus, Brachypogon (B.) american us, B. (Isohelea)
Grogan, William L. Jr.   +1 more
core  

Transfer Printing and Reconfiguration of Soft Electronics Using Digital Microfluidics and Laser Machining

open access: yesAdvanced Functional Materials, EarlyView.
This paper presents a digital microfluidics‐based technique for transferring and reconfiguring soft nanomembranes. Laser‐machined nanothin membranes are picked up, transported, and aligned via tailored surface tension and the actuation of water droplets, enabling the development of flexible electronics, the integration of functional materials on 3D ...
Quang Anh Nguyen   +15 more
wiley   +1 more source

Cambios dimensionales de los arcos dentales en niños de 3 a 12 años de edad de la ciudad de Medellín. Estudio longitudinal- reporte preliminar

open access: yesRevista Facultad de Odontología Universidad de Antioquia, 1997
This is a preliminary report (4 years) of an eight years longitudinal study. These results were obtained from 74 children: 24 boys and 50 girls, all of them starting at 3 to 5 years of age and follow up to the age of 9years.
Libbe Mariaca-de Botero   +3 more
doaj  

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