Results 11 to 20 of about 37,926 (166)

Comparative Analysis of Small-Scale Organic Rankine Cycle Systems for Solar Energy Utilisation

open access: yesEnergies, 2019
Small-scale organic Rankine cycle (ORC) systems driven by solar energy are compared in this paper, which aims to explore the potential of power generation for domestic utilisation.
Ruiqi Wang   +5 more
doaj   +1 more source

A Swan's Secret. [PDF]

open access: yesNature, 1892
Now that the breeding-season for birds is coming near, it would be interesting to note if the following sight I saw last spring is common to swans. A pair of swans built on an island on the River Wey, which runs through our grounds, and I stood on the bank opposite their nest, and watched for a view of the cygnets, which were just hatched out. The male
openaire   +2 more sources

Emergence, prevalence, and evolution of H5N8 avian influenza viruses in central China, 2020

open access: yesEmerging Microbes and Infections, 2022
Highly pathogenic influenza A(H5N8) viruses have caused several worldwide outbreaks in birds and are able cross the species barrier to infect humans, posing a substantial threat to public health.
Xiang Li   +28 more
doaj   +1 more source

Wave Energy Assessment in the South Aquitaine Nearshore Zone from a 44-Year Hindcast

open access: yesJournal of Marine Science and Engineering, 2020
Wave resource assessment is the first step toward the installation of a wave energy converter (WEC). To support initiatives for wave energy development in the southwest of France, a coastal wave database is built from a 44-year hindcast simulation with ...
Ximun Lastiri   +6 more
doaj   +1 more source

Influence of Time and Frequency Domain Wave Forcing on the Power Estimation of a Wave Energy Converter Array

open access: yesJournal of Marine Science and Engineering, 2020
Industry-specific tools for analyzing and optimizing the design of wave energy converters (WECs) and associated power systems are essential to advancing marine renewable energy. This study aims to quantify the influence of phase information on the device
Fadia Ticona Rollano   +4 more
doaj   +1 more source

Evaluación de una propuesta de playa artificial para el sector Oasis, playa Varadero. Cuba

open access: yesIngeniería Hidráulica y Ambiental, 2021
La playa de Varadero es un polo turístico cubano conocido mundialmente por sus hermosas playas, en el sector Oasis para la mejora del sector de playa se ha diseñado un suministro de arena inicial, y para proteger el mismo se ha propuesto un sistema de ...
Luis Fermín Córdova López   +2 more
doaj  

A Generalization of Swan's Theorem [PDF]

open access: yesMathematics of Computation, 1986
Let f and g denote polynomials over the two-element field. In this paper we show that the parity of the number of irreducible factors of
Fredricksen, Harold M.   +2 more
openaire   +1 more source

Harnessing the Antibacterial Properties of Fluoridated Chitosan Polymers against Oral Biofilms

open access: yesPharmaceutics, 2022
Dental caries are a worldwide endemic chronic disease affecting people of all ages. Due to the limitations of daily used oral hygiene products, there is an unmet need for new, effective, safe, and economic oral products.
Dien Puji Rahayu   +3 more
doaj   +1 more source

Performance Analysis of a Flexi-Fuel Turbine-Combined Free-Piston Engine Generator

open access: yesEnergies, 2019
The turbine-combined free-piston engine generator (TCFPEG) is a hybrid machine, generating both mechanical work from the gas turbine and electricity from the linear electric generator for battery charging.
Boru Jia   +5 more
doaj   +1 more source

Study of the 16S microbiome of swans died during the H5N1 outbreak in the Caspian seashore

open access: yesFrontiers in Veterinary Science
IntroductionIn 2023 and 2024, mass mortalities of swans occurred on the Caspian coast of Kazakhstan, which affected more than seven hundred birds of a local population of 10–15 thousand.
Kobey Karamendin   +5 more
doaj   +1 more source

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