Results 31 to 40 of about 2,366,407 (358)

Hollow-core photonic crystal fibers for Power-over-Fiber systems [PDF]

open access: yes, 2022
Research achievements in hollow-core photonic crystal fibers technology allow ascertaining such fibers as outstanding platforms for delivering high-power laser beams. Indeed, the key property underlying the success of this family of optical fibers for high-power beam delivery is their capability of efficiently transmitting light through empty space ...
arxiv   +1 more source

The Main Problems of Scientific Support of Flax Growing

open access: yesСельскохозяйственные машины и технологии, 2020
Strategic plans for the economic development of the Russian Federation involve an increase in demand for natural fiber products, including linen, which will require an increase in the production of domestic linen in the near future.
R. A. Rostovtsev   +3 more
doaj   +1 more source

Ultrasound-assisted extraction (UAE) of antioxidant phenolics from Corchorus olitorius leaves: a response surface optimization

open access: yesChemical and Biological Technologies in Agriculture, 2023
Background Besides fibre production, Corchorus olitorius is considered a nutritional and medicinal plant in traditional medicine. Its leaves possess different antioxidant compounds and display various biological properties.
Ashok Biswas   +8 more
doaj   +1 more source

Efficient large-scale multiplexing of fiber Bragg grating and fiber Fabry-Perot sensors for structural health monitoring applications [PDF]

open access: yes, 2006
Fiber Bragg gratings have been demonstrated as a versatile sensor for structural health monitoring. We present an efficient and cost effective multiplexing method for fiber Bragg grating and fiber Fabry-Perot sensors based on a broadband mode-locked ...
Cranch, Geoffrey A.   +2 more
core   +1 more source

In-Situ Detection Method of Jellyfish Based on Improved Faster R-CNN and FP16

open access: yesIEEE Access, 2023
In recent years, large numbers of jellyfish have congregated in marine areas, leading to a decline in other plankton and fisheries. Jellyfish themselves have a certain toxicity and aggression, which have a serious impact on the safety of human life.
Bi Weihong   +5 more
doaj   +1 more source

IMPROVING STUDENTS’ READING COMPREHENSION THROUGH LISTEN READ DISCUSS (LRD) STRATEGY [PDF]

open access: yes, 2023
This research was conducted in order to find out wheter LRD Strategy can improve students’ Reading Comprehension in Recount Text and to know the students’ responses toward the learning reading comprehension through LRD Strategy.
Ginting, Fiber Yun Almanda   +2 more
core   +1 more source

Digital Light Processing of 2D Lattice Composites for Tunable Self‐Sensing and Mechanical Performance

open access: yesAdvanced Engineering Materials, EarlyView., 2023
The study presents the mechanical and in situ sensing performance of digital light processing‐enabled 2D lattice nanocomposites under monotonic tensile and repeated cyclic loading, and provides guidelines for the design of architectures suitable for strain sensors and smart lightweight structures.
Omar Waqas Saadi   +3 more
wiley   +1 more source

Recognition Preference of Rhodamine Derivative Bearing Phthalimido Gly for Hg2+ by UV-Vis and Fluorescence Spectroscopy

open access: yesJournal of Spectroscopy, 2013
An effective Hg2+-specific probe 1 was designed and prepared based on Phthalimido Gly modified rhodamine B. The sensing behavior of probe 1 was studied by UV-Vis and fluorescence spectroscopy.
Fanyong Yan   +5 more
doaj   +1 more source

High-brightness table-top coherent XUV source at 130eV [PDF]

open access: yesEPJ Web of Conferences
We present a highly stable, easy-to-use, table-top coherent XUV source delivering a brightness of >1kW/(mm²sr)/1%BW at 130eV (9.5nm). It is based on high-harmonic generation driven by an ultrastable ytterbium-based fiber laser and a multipass-cell-based ...
Tschernajew Maxim   +8 more
doaj   +1 more source

Reaction of fiber flax varieties to seeding rates, sowing time and optimization of mineral nutrition on sod-podzolic medium- cultivated soils in the Pskov region

open access: yesАграрная наука Евро-Северо-Востока, 2020
The article presents the results of scientific research for 2014-2019 on the reaction of early-maturing fiber flax varieties (Linum usitatissimum L.) of the Pskov selection Peresvet, Kvartet, Voskhod and Dobrynya to growing conditions: sowing time ...
A. D. Stepin   +4 more
doaj   +1 more source

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