Results 21 to 30 of about 3,507,754 (357)

Comparison of endothelial cell loss in diabetic patients after conventional phacoemulsification and femtosecond laser-assisted cataract surgery

open access: yesBMC Ophthalmology, 2023
Purpose This study aims to comparatively evaluate the morphological changes of the cornea after phacoemulsification (PHACO) and femtosecond laser-assisted cataract surgery (FLACS) without intercurrences in patients with type 2 diabetes mellitus.
João Carlos Gonçalves Cruz   +6 more
doaj   +1 more source

Suitability of Selenate Containing Silage Additives for the Supply of Beef Cattle [PDF]

open access: yes, 2023
Selenium concentrations in herbage are frequently insufficient (\u3c 100 μg Se/kg dry matter (DM)) to meet the requirements of ruminants. Whereas increasing Se supply by feeding mineral mixtures is a reliable method to prevent Se deficiencies for dairy ...
Laser, Harald
core   +1 more source

To laser or not?

open access: yesIndian Journal of Ophthalmology, 2018
A 64-year-old male patient presented to the clinic with diminished vision in his right eye for the past 2 years. Examination revealed a best-corrected visual acuity (BCVA) of counting fingers at 1 m with a scarred choroidal neovascular membrane (CNVM) in the right eye while the left eye had a BCVA of 20/20 with a small peripapillary subretinal ...
Govindhari, Jay Chhablani
openaire   +3 more sources

Longitudinal Laser Shaping in Laser Wakefield Accelerators [PDF]

open access: yesPhys.Lett.A296:125-130,2002, 2000
We study the energetics of wake excitation during the laser-plasma interaction in application to laser wakefield accelerators. We find that both the wake amplitude and the accelerating efficiency (transformer ratio) can be maximized by properly shaping the longitudinal profile of the driving laser pulse.
arxiv   +1 more source

Unresonant interaction of laser beams with microdroplets [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2012
The interaction of distilled water droplets (volumes of 3-4 µl) with pulsed laser beams emitted at 532 nm is described. At 532 nm the distilled water absorption is very low and the interaction of a water droplet with the laser radiation is dominated by ...
Pascu M. L.   +3 more
doaj   +1 more source

Effect of legume proportion and physiological age on forage quality and the suitability of Agrostis capillaris L. and Festuca rubra L. for silage making

open access: yesPlant, Soil and Environment, 2004
The chemical and physical properties of herbage from low-input grassland usually differ from plant material of intensively managed swards. The experiment in split-plot design with four replicates was carried out to examine, whether legume proportions and
H. Laser, W. Opitz Von Boberfeld
doaj   +1 more source

A Feasibility Study on Monitoring Shelf Life of Bottled Natural Fruit Juice Using Laser-Induced Autofluorescence

open access: yesInternational Journal of Optics, 2023
Shelf life of bottled natural fruit juice (BNFJ) provides relevant information on quality and authenticity for consumer protection. However, existing techniques for monitoring the shelf life of BNFJ are destructive and time-consuming.
Peter Osei-Wusu Adueming   +7 more
doaj   +1 more source

Thermal photon statistics in laser light above threshold [PDF]

open access: yesPhys.Rev. A62 (2000) 063807, 1999
We show that the reduction in photon number fluctuations at laser threshold often cited as a fundamental laser property does not occur in typical semiconductor lasers such as the ones commonly used in modern technological applications today. Indeed, such lasers may still exhibit thermal intensity fluctuations far above threshold.
arxiv   +1 more source

Rethinking Patent Law\u27s Exclusive Appellate Jurisdiction [PDF]

open access: yes, 2022
The United States Court of Appeals for the Federal Circuit was created in 1982 to unify and clarify patent law, inter alia. It was built from political compromise after the Hruska Commission, which studied the caseload crisis in the federal appellate ...
Laser, Christa
core   +1 more source

Rod Laser – The first laser was a rod laser [PDF]

open access: yesLaser Technik Journal, 2005
Laser technology is relatively young. The first laser was built in 1960 by Maiman at AT&T Labs in the USA. It was a rod-shaped ruby laser, this arrangement having been chosen for its favourable symmetry (Fig. 1). Starting from this device, the technology of solid-state lasers developed rapidly.
Hans Amler, Josef Thumbs
openaire   +2 more sources

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