Effect of light emitting diodes (LED) light on the productivity and quality of selected crops in a modular agricultural production system

Metal halide perovskite light-emitting diodes (PeLEDs) are promising in lighting and display application, and the corresponding device performance is highly dependent on the film quality of the active layer. However,...

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Utjecaj različitog tipa umjetnog osvjetljenja na klijavost sjemena matovilca i kres salate

Glasnik zaštite bilja ◽

10.31727/gzb.40.6.8 ◽

2017 ◽

Vol 40 (6) ◽

pp. 70-76

Author(s):

Tomislav Vinković ◽

Monika Tkalec ◽

Nada Parađiković ◽

MIro Stošić ◽

Krunoslav Zmaić ◽

...

Keyword(s):

Light Emitting Diodes ◽

Light Emitting ◽

Led Light

Cilj rada je bio utvrditi utjecaj LED (Light Emitting Diodes) i FLUO (fluorescentno svjetlo) osvjetljenja na klijavost i energiju klijanja sjemena te masu i visinu klijanaca matovilca i kres salate. Sjetva naturalnog sjemena provedena je u Petrijeve zdjelice u komori opremljenoj LED i FLUO lampama. LED lampe su bile opremljene crvenim (650-670 nm) i plavim (440-460 nm) LED diodama u omjeru 3:1. Istraživanje je provedeno u Laboratoriju za povrćarstvo, cvjećarstvo, ljekovito i začinsko bilje Poljoprivrednog fakulteta u Osijeku. Utvrđen je statistički opravdan utjecaj tipa osvjetljenja na energiju klijanja i klijavost sjemena matovilca, a veće vrijednosti utvrđene su uslijed primjene LED lampi. Suprotno, pod FLUO lampama je utvrđena značajno veća masa i visina klijanaca matovilca te visina klijanaca kres salate. Međutim, tip osvjetljenja nije značajno utjecao na klijavost i energiju klijanja te masu klijanaca kres salate. Prema tome, može se zaključiti da je odgovor na tip osvjetljenja uvjetovan biljnom vrstom već od samih početaka rasta i razvoja.

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Photodynamic effect of light emitting diodes on E. coli and human skin cells induced by a graphene-based ternary composite

Journal of Photochemistry and Photobiology B Biology ◽

10.1016/j.jphotobiol.2021.112298 ◽

2021 ◽

pp. 112298

Author(s):

Maria Suciu ◽

Sebastian Porav ◽

Teodora Radu ◽

Marcela C. Rosu ◽

Mihaela D. Lazar ◽

...

Keyword(s):

Human Skin ◽

Light Emitting Diodes ◽

Photodynamic Effect ◽

Ternary Composite ◽

Light Emitting ◽

E Coli ◽

Skin Cells ◽

Human Skin Cells ◽

Effect Of Light

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Effect of light-emitting diodes, platelet-rich plasma, and their combination on the activity of sheep tenocytes

Lasers in Medical Science ◽

10.1007/s10103-018-2657-8 ◽

2018 ◽

Vol 34 (4) ◽

pp. 759-766

Author(s):

Jihad A. M. Alzyoud ◽

Saleh A. Al Najjar ◽

Seham Talat ◽

Basha’er Abu-Irmaileh ◽

Yasser Bustanji ◽

...

Keyword(s):

Light Emitting Diodes ◽

Platelet Rich Plasma ◽

Light Emitting ◽

Effect Of Light

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Profitability in a Sustainable Agricultural Production System: An Approach by the Soil and Water Conservation

Building a Resilient and Sustainable Agriculture in Sub-Saharan Africa ◽

10.1007/978-3-319-76222-7_7 ◽

2018 ◽

pp. 123-145

Author(s):

Idrissa Ouiminga

Keyword(s):

Production System ◽

Water Conservation ◽

Agricultural Production ◽

Soil And Water Conservation ◽

Agricultural Production System ◽

Soil And Water

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Compressive strength measurements of hybrid dental composites treated with dry heat and light emitting diodes (LED) post cure treatment

Padjadjaran Journal of Dentistry ◽

10.24198/pjd.vol26no3.14008 ◽

2014 ◽

Vol 26 (3) ◽

Author(s):

Jenny Krisnawaty ◽

Setiawan Natasasmita ◽

Dudi Aripin

Keyword(s):

Compressive Strength ◽

Hybrid Composite ◽

Light Emitting Diodes ◽

Composite Resin ◽

Hybrid Composites ◽

Testing Machine ◽

Dental Composite ◽

Light Emitting ◽

Led Light ◽

Dry Heat

Hybrid composites are mostly used on large cavities as restorative dental materials, whether it is used directly or indirectly. The mechanical properties of composite resin shall increase if it is treated with post cure treatment. The aim of this study is to evaluate compressive strength differences between dry heat and Light Emitting Diodes (LED) treatment on the hybrid dental composite. A quasi-experimental was applied on this research with a total of 30 samples that were divided into two groups. Each sample was tested using LLOYD Universal Testing Machine with 1 mm/min speed to evaluate the compressive strength. The compressive strength results were marked when the sample was broken. The results of two groups were then analyzed using t-test statistical calculation. The results of this study show that post cure treatment on hybrid composite using LED light box (194.138 MPa) was lower than dry heat treatment (227.339 MPa), which was also significantly different from statistical analysis. It can be concluded that compressive strength of LED light box was lower than dry heat post-cure treatment on the hybrid composite resin.

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