Results 91 to 100 of about 3,450 (259)

High-Performance PVC Gel for Adaptive Micro-Lenses with Variable Focal Length. [PDF]

open access: yes, 2017
This paper presents a bio-inspired adaptive micro-lens with electrically tunable focus made of non-ionic high-molecular-weight polyvinyl chloride (PVC) gel. The optical device mimics the design of the crystalline lens and ciliary muscle of the human eye.
Bae, Jin   +7 more
core   +1 more source

Fabrication and Characterization of a Magnetic 3D‐printed Microactuator

open access: yesAdvanced Materials Technologies, Volume 9, Issue 12, June 18, 2024.
A novel magnetic microactuator is presented. The mechanical structure is fabricated by two‐Photon‐Polymerization and functionalized in a post‐processing step by incorporating an NdFeB‐Epoxy composite into a designated reservoir. Continuous positioning with large displacement of up to 88.9 µm is achieved in actuation experiments. Hysteretic behavior due
Florian Rothermel   +7 more
wiley   +1 more source

Fabrication of Micro-Optics Elements with Arbitrary Surface Profiles Based on One-Step Maskless Grayscale Lithography

open access: yesMicromachines, 2017
A maskless lithography method to realize the rapid and cost-effective fabrication of micro-optics elements with arbitrary surface profiles is reported. A digital micro-mirror device (DMD) is applied to flexibly modulate that the exposure dose according ...
Qinyuan Deng   +5 more
doaj   +1 more source

Fabricating optical fibre-top cantilevers for temperature sensing [PDF]

open access: yes, 2014
In this paper, we propose techniques to fabricate micro-cantilevers onto the end of standard single mode optical fibres using a combination of picosecond laser machining and focused ion beam milling techniques and demonstrate their use as temperature ...
Albri, F   +6 more
core   +1 more source

Integrated Microfluidics for Single‐Cell Separation and On‐Chip Analysis: Novel Applications and Recent Advances

open access: yesSmall Science, Volume 4, Issue 4, April 2024.
Fully integrated microsystems have the potential to revolutionize single‐cell analysis by upholding common advantages of microfluidics while eliminating the need for off‐chip sample processing. In this manuscript, multiple emerging examples capable of isolation and analysis of different types of single cells are discussed.
Hazal Kutluk   +2 more
wiley   +1 more source

Long-lived monolithic micro-optics for multispectral GRIN applications

open access: yesScientific Reports, 2018
The potential for realizing robust, monolithic, near-surface refractive micro-optic elements with long-lived stability is demonstrated in visible and infrared transmitting glasses capable of use in dual band applications.
Antoine Lepicard   +8 more
doaj   +1 more source

Microoptics for efficient redirection of sunlight [PDF]

open access: yesApplied Optics, 2012
Ray-tracing calculations are employed to identify basic design rules for the configuration of microstructured daylighting systems. The results show the advantage of combinations of lenslike geometries in comparison to conventional microprism arrays regarding the overall light redirection efficiency as well as the producibility and cost efficiency ...
Stephan, Klammt   +2 more
openaire   +2 more sources

Dissecting wireless body area networks routing protocols: Classification, comparative analysis, and research challenges

open access: yesInternational Journal of Communication Systems, Volume 37, Issue 1, 10 January 2024.
WBANs are applied in E‐Healthcare systems, extract the physiological parameters through the implanted (in‐body) and/or wearable(on‐body) sensors applied to the human body, and route them to the remote server in a systematized and well‐grounded manner.
Bhawna Narwal   +5 more
wiley   +1 more source

Indication of Te segregation in laser-irradiated ZnTe observed by in situ coherent-phonon spectroscopy [PDF]

open access: yes, 2014
We irradiate a ZnTe single crystal with 10-fs laser pulses at a repetition rate of 80 MHz and investigate its resulting gradual modification by means of coherent-phonon spectroscopy.
Frischkorn, Christian   +4 more
core   +1 more source

Failure of isoxsuprine HCl to increase sheep fertility after cervical versus laparoscopic AI using chilled semen at different durations

open access: yesAnimal Science Journal, Volume 95, Issue 1, January/December 2024.
Abstract To improve the fertility of cervical artificial insemination (AI) in sheep, we investigated isoxsuprine HCl usage on the cervical passage during cervical AI. We also compared cervical and laparoscopic AI fertility results of using chilled semen at different durations.
Bülent Bülbül   +5 more
wiley   +1 more source

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