نتایج جستجو برای: led lights

تعداد نتایج: 218683  

Journal: :AJN, American Journal of Nursing 2021

Journal: :Nature 1991

Journal: :Nature 1877

Journal: :Nature 1939

Journal: :Current Biology 2004

2003
Ian Savage Shannon Mok

(includes addition of the effect of " ditch lights ") Abstract The number of collisions and fatalities at rail-highway intersections has declined significantly over the past thirty years, despite considerable increases in the volume of both rail and highway traffic. This paper disaggregates the improvement into its constituent causes. Negative binomial regressions are conducted on a pooled data...

Journal: :Daun 2022

Shallots are a type of horticultural plant that is widely cultivated and used as source livelihood by the people Enrekang Regency. Shallot cultivation has challenges in form controlling attacks plant-disturbing organisms (OPT) which require large amount money if it not carried out, there risk reducing production yields even causing crop failure. This study aims to determine effect using LED lig...

2017
Franka Seiler Jürgen Soll Bettina Bölter

Comparative analyses of phenotypic and molecular traits of Arabidopsis thaliana grown under standardised conditions is still a challenge using climatic devices supplied with common light sources. These are in most cases fluorescent lights, which have several disadvantages such as heat production at higher light intensities, an invariable spectral output, and relatively rapid "ageing". This resu...

2010
John H. Wang

Visual cues play important roles in sea turtle foraging behavior and likely influence their interactions with fishing gear. Altering these cues may be a useful strategy to reduce the incidental catch of sea turtles in various fisheries. We examined the potential effectiveness of 3 visual cues — shark shapes placed along the length of the gill net, illumination of nets by LED lights, and nets il...

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