Results 81 to 90 of about 47,639 (261)

Protocols for Integrity Constraint Checking in Federated Databases [PDF]

open access: yes, 1996
A federated database is comprised of multiple interconnected database systems that primarily operate independently but cooperate to a certain extent. Global integrity constraints can be very useful in federated databases, but the lack of global queries ...
Grefen, Paul, Widom, Jennifer
core   +3 more sources

Enhancement of Modulation Bandwidth for VLC Utilizing Green Mini‐LED Light Source

open access: yesAdvanced Physics Research, EarlyView.
This paper investigates three sizes of green Mini‐LEDs for visible light communication, focusing on modulation bandwidth and the impact of atomic layer deposition (ALD) sidewall passivation. ALD significantly enhances bandwidth (up to 21.6%), confirming suppression of nonradiative recombination.
Rongxing Wu   +9 more
wiley   +1 more source

Narrow Linewidth Distributed Bragg Reflectors Based on InGaN/GaN Laser

open access: yesMicromachines, 2019
A variety of emerging technologies, such as visible light communication systems, require narrow linewidths and easy-to-integrate light sources. Such a requirement could be potentially fulfilled with the distributed Bragg reflector (DBR) lasers, which are
Wuze Xie   +5 more
doaj   +1 more source

Teacher agency in curriculum and pedagogical development: Reflections from a design research project about self‐regulated learning in secondary schools

open access: yesThe Curriculum Journal, EarlyView.
Abstract Transnational guidelines on skills and competencies for lifelong learning, along with curriculum reforms to promote curriculum flexibility and autonomy in schools, are pressing teachers to be engaged in curriculum and pedagogical innovation focused on student‐centred approaches favourable to developing learner autonomy.
Thiago Freires   +3 more
wiley   +1 more source

High-Performance Ultraviolet Photodetectors Based on Nanoporous GaN with a Ga2O3 Single-Crystal Layer

open access: yesNanomaterials
The utilization of a nanoporous (NP) GaN fabricated by electrochemical etching has been demonstrated to be effective in the fabrication of a high-performance ultraviolet (UV) photodetector (PD).
Junjie Wen   +6 more
doaj   +1 more source

Exact solution to the steady-state dynamics of a periodically-modulated resonator

open access: yes, 2017
We provide an analytic solution to the coupled-mode equations describing the steady-state of a single periodically-modulated optical resonator driven by a monochromatic input.
Fan, Shanhui, Minkov, Momchil, Shi, Yu
core   +2 more sources

Lactuca sativa L. losses and wastes as a source of biobased ingredients

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND The growing global population and increasing consumer focus on healthy eating challenge the agricultural sector to ensure both sustainable food production and safety. Lettuce (Lactuca sativa Mill.), the most cultivated leafy vegetable worldwide, can lose up to 40% of its weight during processing.
Joana PB Rodrigues   +8 more
wiley   +1 more source

Nutritional parameters of sheep fed diets based on grass silage with brewery residue and a concentrate with rice bran

open access: yesAIMS Agriculture and Food
The objective was to evaluate the intake, digestibility, and feeding behavior of sheep receiving diets based on marandu grass silage (MGS) with different levels of dehydrated brewery residue (DBR) inclusion and different types of concentrates.
Anderson de Moura Zanine   +13 more
doaj   +1 more source

3D Polymeric Nanonetworks: From Self‐Assembly to Advanced Fabrication

open access: yesMacromolecular Materials and Engineering, EarlyView.
This review provides the first systematic cross‐method comparison of fabrication techniques for 3D polymeric nanonetworks. It evaluates five key strategies—block copolymer self‐assembly, hyper‐crosslinking, template‐assisted methods, 3D printing, and nanolithography—across critical metrics including resolution, throughput, scalability, and material ...
Carlos G. Cobos   +2 more
wiley   +1 more source

Dry brewery residue in broiler chickens feed

open access: yesSemina: Ciências Agrárias, 2018
The residual from the food industry has the potential to replace the traditional ingredients used in animal feed, and the dry brewery residue (DBR) may be an alternative for this purpose.
Wiliam Parpinelli   +4 more
doaj   +1 more source

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