Results 61 to 70 of about 1,021,138 (276)

Exploring the Benefits and Drawbacks of AR and VR Technologies for Learners of Mathematics: Recent Developments

open access: yesSystems, 2023
Despite the growing interest in the field, the overall impact of augmented reality (AR) and virtual reality (VR) on mathematics learning remains unclear, with previous studies reporting mixed results. Moreover, to date, no systematic review has evaluated
Mustafa Cevikbas   +2 more
doaj   +1 more source

Total immersion crystal growth [PDF]

open access: yes, 1987
Crystals of wide band gap materials are produced by positioning a holder receiving a seed crystal at the interface between a body of molten wide band gap material and an overlying layer of temperature-controlled, encapsulating liquid.
Morrison, Andrew D.
core   +1 more source

Immersion microscopy based on photonic crystal materials

open access: yes, 2005
Theoretical model of the enhanced optical resolution of the surface plasmon immersion microscope is developed, which is based on the optics of surface plasmon Bloch waves in the tightly bound approximation.
Davis, Christopher C.   +4 more
core   +1 more source

Natural Fibrous Materials as Eco-Friendly Air Filters

open access: yesJournal of Natural Fibers
Exposure to particulate matter has various health consequences, and high-efficiency particulate air (HEPA) filters and facial masks are used to remove such pollutants.
Seokhyun Chin, Woori Choi, Sunghwan Jung
doaj   +1 more source

Multi-immersion open-top light-sheet microscope for high-throughput imaging of cleared tissues

open access: yesNature Communications, 2019
Recent advances in optical clearing and light-sheet microscopy have provided unprecedented access to structural and molecular information from intact tissues. However, current light-sheet microscopes have imposed constraints on the size, shape, number of
A. Glaser   +17 more
semanticscholar   +1 more source

Wedge immersed thermistor bolometers [PDF]

open access: yes, 1964
An immersed thermistor bolometer for the detection of ultraviolet, visible, and infrared radiation is described. Two types of immersed bolometers are discussed.
Dreyfus, M. G.
core   +1 more source

Current possibilities and challenges of using metaverse-like environments and technologies in education

open access: yesFrontiers in Virtual Reality
This paper presents findings from a stakeholder mapping exercise exploring how higher education professionals perceive and engage with metaverse‐like environments and technologies.
Ágnes Karolina Bakk   +3 more
doaj   +1 more source

Comparative Evaluation of Booster Vaccine Efficacy by Intracoelomic Injection and Immersion with a Whole-Cell Killed Vaccine against Lactococcus petauri Infection in Rainbow Trout (Oncorhynchus mykiss)

open access: yesPathogens, 2023
Lactococcus petauri is an important emergent bacterial pathogen of salmonids in the USA. The purpose of this study was to evaluate the protection conferred to rainbow trout (Oncorhynchus mykiss) against L. petauri by formalin-killed vaccines in immersion
Tryssa de Ruyter   +8 more
doaj   +1 more source

Constructing graphs with no immersion of large complete graphs [PDF]

open access: yes, 2012
In 1989, Lescure and Meyniel proved, for $d=5, 6$, that every $d$-chromatic graph contains an immersion of $K_d$, and in 2003 Abu-Khzam and Langston conjectured that this holds for all $d$.
E. Heenehan, Karen L. Collins, Megan
core  

Mitigation of corrosion attack on carbon steel coated cermet alloy in different anion contents [PDF]

open access: yes, 2017
This research study evaluated the corrosion mechanism attack on carbon steel coated with cermet alloys (WC9% Ni) in seawater at different sulphate-to-chloride ratios.
Ismail, Azzura   +1 more
core   +1 more source

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