Results 141 to 150 of about 443,830 (340)
Miniature implantable instrument measures and transmits heart function data [PDF]
, 1971 Heart diameter is derived from measured transit time of 2.25 MHz ultrasonic pulse between two piezoelectric crystals attached to diametrically opposite heart surfaces.
Lee, R. D.
core +1 more source
Improvement of measurement performance of miniaturized mass-flow meter for an axial flow blood pump
, 2008 Ryo Kosaka +5 more
openalex +2 more sources
Advanced Functional Materials, EarlyView.A multilayer‐stackable carbon nanotuber (CNT) scaffold‐based piezoelectric nanogenerator (CPENG) with domino‐patterned CNT pillars presents high, stable output (12.3 V, size of 1 cm × 1 cm) over 2000 cycles, operates across a wide temperature range, and efficiently converts energy from real‐life stimuli through optimized CNT length, layer stacking, and
Kwangjun Kim +3 more
wiley +1 more source
Reparable, high-density microelectronic module provides effective heat sink [PDF]
, 1967 Reparable modular system is used for packaging microelectronic flat packs and miniature discrete components. This three-dimensional compartmented structure incorporates etched phosphor bronze sheets and frames with etched wire conductors.
Carlson, K. J., Maytone, F. F.
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Digital Miniature Factory as Foundation for Smart Connected Production Systems
, 2023 Horst Orsolits +4 more
openalex +1 more source
Membrane Wrapping for High Capacity and Rapidly Switchable Adhesives
Advanced Functional Materials, EarlyView.A membrane‐wrapping mechanism enables high‐capacity, rapidly switchable adhesion by coupling suction, friction, and adhesion. Broadband performance is achieved in dry and underwater conditions, allowing fast, reversible manipulation of objects of diverse sizes and shapes, from delicate eggs and berries to flat, complex, or heavy objects. These outcomes
Yeunhee Kim +2 more
wiley +1 more source
Log amplifier instrument measures physiological biopotentials over wide dynamic range [PDF]
, 1970 To record biopotentials with extreme dynamic ranges, biopotential inputs are capacitatively coupled to a miniature, low power, solid-state signal conditioner consisting of a two-stage differential preamplifier that has a low noise figure.
Kado, R. T.
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Advanced Functional Materials, EarlyView.A novel approach for the design of functional semiconductors is presented, which utilizes the excellent optoelectronic properties of layered hybrid perovskites and the possibility to introduce a molecular photoswitch as the organic spacer. This concept is successfully demonstrated on a coumarin‐based system with the possibility to change the bandgap ...
Oliver Treske +4 more
wiley +1 more source
Advanced Functional Materials, EarlyView.In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa +19 more
wiley +1 more source
Scene simulation for passive IR systems [PDF]
The development of large mosaic detector arrays will allow for the construction of staring long wave infrared (LWIR) sensors which can observe large fields of view instantaneously and continuously.
Bailey, A. B., Dawbarn, R., Holt, J. D.
core +1 more source