Results 41 to 50 of about 183,782 (223)

The Improvement of Performance through Minimizing Scallop Size in MEMS Based Micro Wind Turbine

open access: yesMicromachines, 2021
In this paper we report on the improvement of performance by minimizing scallop size through deep reactive-ion etching (DRIE) of rotors in micro-wind turbines based on micro-electro-mechanical systems (MEMS) technology.
Young Chan Choi   +3 more
doaj   +1 more source

Broadband Mode Converter With Customizable Modal Ratio Leveraging Subwavelength Engineering for Advanced Multimode Silicon Photonics

open access: yesLaser &Photonics Reviews, EarlyView.
This work introduces a customizable mode converter for multimode silicon photonics, enabling precise control over the conversion ratio between optical modes. The device operates across a broad wavelength range (1350–1700 nm) with 15 distinct conversion levels.
Raquel Fernández de Cabo   +7 more
wiley   +1 more source

Safe and Efficient CRISPR Genome Editing of Primary Human T Cells Using a Droplet‐Based Cell Mechanoporation Platform

open access: yesSmall, EarlyView.
This study introduces a microfluidic droplet mechanoporation system for the engineering of primary human T cells. The platform enables efficient, scalable, and robust delivery of mRNA for CAR T cell production and CRISPR‐Cas9 ribonucleoproteins for genome editing, while maintaining high cell viability.
You‐Jeong Kim   +2 more
wiley   +1 more source

Het gezag van de Schrift

open access: yesIn die Skriflig, 1970
In de grond van de zaak zijn er maar drie verschillende Schriftbeschouwingen en alle drie hebben ze een overeenkomstige opvatting van het gezag der Schrift. In de eerste plaats is er de oude vrijzinnige Schriftbeschouwing.
K. Runia
doaj   +1 more source

Meniscal transplantation in the football player

open access: yesJournal of Cartilage & Joint Preservation, 2022
Introduction: Sport activity after meniscal allograft transplantation (MAT) still represents a controversial topic even among knee experts. The major discordance between the authors is whether patients are able to return to pre-injury levels of sports ...
Francesca de Caro   +2 more
doaj   +1 more source

“Tone‐Arm” Neuromodulation MEMS Microcoil for In Vivo Imaging

open access: yesSmall, EarlyView.
ABSTRACT Implantable neural interfaces have revolutionized neuromodulation by enabling bidirectional communication between neural circuits and external devices. Yet, existing modalities face important challenges in precision, high invasiveness, and compatibility with advanced in vivo imaging systems.
Xiyuan Liu   +6 more
wiley   +1 more source

Guidelines for etching silicon MEMS structures using fluorine high-density plasmas at cryogenic temperatures [PDF]

open access: yes, 2002
This paper presents guidelines for the deep reactive ion etching (DRIE) of silicon MEMS structures, employing SF/sub 6//O/sub 2/-based high-density plasmas at cryogenic temperatures.
Boer, Meint J. de   +6 more
core   +2 more sources

Single-mask thermal displacement sensor in MEMS [PDF]

open access: yes, 2010
In this work we describe a one degree-of-freedom microelectromechanical thermal\ud displacement sensor integrated with an actuated stage. The system was fabricated in the device layer of a silicon-on-insulator wafer using a single-mask process.
Abelmann, L.   +5 more
core   +2 more sources

A MEMS-based solid propellant microthruster array for space and military applications [PDF]

open access: yes, 2015
Since combustion is an easy way to achieve large quantities of energy from a small volume, we developed a MEMS based solid propellant microthruster array for small spacecraft and micro-air-vehicle applications.
Chaalane, A   +9 more
core   +2 more sources

Stemprobleme by enkele groepe professionele stemgebruikers: Implikasies vir voorkoming

open access: yesSouth African Journal of Communication Disorders, 1996
Primere voorkoming van kommunikasieafwykings word toenemend 'n belangrike beroepsfunksie van die spraak-taalterapeut. Funksionele stemhiperfunksie wat dikwels voorkom by professionele stemgebruikers kan voorkom word.
Anita van der Merwe   +3 more
doaj   +1 more source

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