Since the publication of its 2020 position statement on artificial intelligence (AI) in sleep medicine by American Academy Sleep Medicine, there has been a tremendous expansion AI-related software and hardware options for clinicians. To help clinicians understand current state AI medicine, to further enable these solutions be adopted into clinical practice, discussion panel was conducted June 7, 2022, at Associated Professional Societies Conference Charlotte, North Carolina. The article is...

Three-dimensional (3D) printer-based self-healing capsules, embedded in cement composites, were proposed to heal cracks, as they allow for various structural designs of repeatable fabrication, and strength analysis. Out many 3D printing methods, such fusion deposition modeling (FDM), powder layer fusion, PolyJet printing, FDM was used design, analyze, produce new which are widely due their high-speed, low-cost, precise manufacturing. However, the PLA extruded had low adhesion energy between...

Studies on self-healing capsules embedded in cement composites to heal such cracks have recently been actively researched order improve the dimensional stability of concrete structures. In particular, capsule studies were mainly conducted separately inject reactive healing solutions into different capsules. However, with this method, there is an important limitation that probability greatly reduced because two must meet and react. Therefore, we propose three-dimensional (3D) printer-based a...

We developed a sound absorber using magnetorheological fluid(MR-F) based on the density and alignment angle of carbonyl iron powder(CIP) chains by controlling magnetic field strength direction. The magnetically arranged CIP lattice structure considerably influenced transmission loss(STL). used optical microscopy, energy-dispersive X-ray spectrometry, diffraction to investigate STL varying from 0 40 mT 30°. was markedly increased (133%) owing an ∼10-fold alignment. These results were verified...

As contaminated water increases due to environmental pollution, the need for excellent treatment is increased, and several studies have reported polyvinylidene fluoride (PVDF)-based membranes. However, PVDF membrane has problems such as low filtration performance, fouling resistance, difficulty in precisely controlling morphology of pores hydrophilicity. Therefore, we newly produced a containing graphene oxide (GO) multi-walled carbon nanotubes (MWCNTs) improve performance. Surface...

The effect of changes in non-solvent coagulation bath temperature on surface properties such as morphology and hydrophilicity were investigated multi-walled carbon nanotubes (MWCNTs) graphene oxide (GO)-based polyvinylidene fluoride (PVDF) membranes. pores (size, shape, number) well membrane using field emission scanning electron microscopy, Raman spectroscopy, optical water contact angle, flux. Results showed that the pore size increased with an increase temperature. hydrophilic functional...

We report graphene oxide (GO) and multi-walled carbon nanotube (MWCNT)-based polyvinylidene fluoride (PVDF) to improve the nanopore properties of pure PVDF for water treatment. The surface such as morphology, size pores, hydrophilicity were characterized using an optical microscope, FE-SEM, Raman spectra, a capillary flow porometer. membrane performance was evaluated free residual chlorine flux. GO MWCNTs uniformly synthesized in PVDF, hydrophobic became hydrophilic because oxygen functional...

Magneto-rheological gel (MRG) has been the subject of recent research due to its versatile applications. Especially, magneto-induced electrical properties MRGs under different levels magnetic field enables them be used as magneto-sensors. However, conventional MRG shows a low level conductivity, complicating use in sensor In this regard, present study, carbon nanotube (CNT) and graphene oxide (GO) are added fabricate new types MRG. Herein, four samples were fabricated with reference an...

We developed a complex three-dimensional (3D) multilayer deposition method for the fabrication of single-walled carbon nanotubes (SWCNTs) using vacuum filtration and plasmonic carbonization without lithography etching processes. Using this method, SWCNTs can be stacked to form 3D structures that have large surface area relative unit volume compared single-plane structure conventional SWCNTs. characterized SWCNT patterns optical profiler, Raman spectroscopy, sheet resistance, scanning...

Self-healing capable of storing two or more solutions is proposed to heal cracks by manufacturing capsules with a 3D printer enable structural design, repeatable fabrication, and strength analysis. The Fusion Deposition Modeling (FDM) method was used analyze, produce new, widely self-healing at low cost. However, since the PLA extruded from FDM has interlayer adhesion energy, varies depending on load angle applied laminated surface concrete structure, which degrades performance capsule....

In recent years, self-healing research has been actively carried out to increase the life and stability of concrete structures. A representative method is a using bacterial substrate capsule. Bacteria-based greatly influenced by external environment, sleeping structures are more suitable for capsule-based methods. this study, mechanical properties bonding surface photocurable resin used grow cracks in capsule so that pops healing liquid inside can be diffused efficiently. We proceeded with...

This paper intended to measure the material's rigidity according orientation of PLA specimen produced by FDM method. To change strength and stiffness direction stacking PLA, was manufactured tested not only in but also infill using line pattern concentric pattern. The intensity each 38.11MPa with a 0 degree tensile pattern, 3.45 times higher than 11.9MPa 90 tensile, 2.15 shear 28.05MPa 13.88MPa. In 50.62MPa, 6.25 8.46MPa, 2.23 at 13.52MPa compared 29.56MPa. biggest difference zero-degree 37%...

This study presents the possibility of control nanofluidics in bio-inspired nanosized ion channel using a field effect transistor (FET) structure. We analyzed effects from main dominant factors to flow such as electro-osmosis, diffusion effect, Coulomb force between ions and pressure force. Additionally, we suggest strategy accurately at specific position nanochannel by handling viscosity, molecular density, pressure, gate trans-cis voltages FET