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Article
Open AccessInvestigation of daily patterns for smartphone keystroke dynamics based on loneliness and social isolation
This study examined the relationship between loneliness levels and daily patterns of mobile keystroke dynamics in healthy individuals. Sixty-six young healthy Koreans participated in the experiment. Over five ...
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Article
Open AccessEx-situ generation and synthetic utilization of bare trifluoromethyl anion in flow via rapid biphasic mixing
Fluoroform (CF3H) is the simplest reagent for nucleophilic trifluoromethylation intermediated by trifluoromethyl anion (CF3–). However, it has been well-known that CF3– should be generated in presence of a stabil...
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Article
Etch Mechanism of AlN Thin Film in Cl2/Ar Inductively Coupled Plasma
The etching characteristics of aluminum nitride (AlN) were investigated with the etch rate of AlN thin film and the selectivity of AlN to SiO2 in an inductively coupled Cl2/Ar plasma. The AlN etch rate was linear...
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Article
Open AccessThe influence of object-location binding mental load effects on the visual N1 and N2 Event-related Potentials
This study aimed to analyze the effect of object-location binding on the visual working memory workload. For this study, thirty healthy subjects were recruited, and they performed the “What was where” task, wh...
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Article
Open AccessRedefining differential roles of MAO-A in dopamine degradation and MAO-B in tonic GABA synthesis
Monoamine oxidase (MAO) is believed to mediate the degradation of monoamine neurotransmitters, including dopamine, in the brain. Between the two types of MAO, MAO-B has been believed to be involved in dopamine...
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Article
Open AccessFlow parallel synthesizer for multiplex synthesis of aryl diazonium libraries via efficient parameter screening
The development of miniaturized flow platforms would enable efficient and selective synthesis of drug and lead molecules by rapidly exploring synthetic methodologies and screening for optimal conditions, progr...
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Article
Open AccessIdentifying the cause of thermal droop in GaInN-based LEDs by carrier- and thermo-dynamics analysis
This study aims to elucidate the carrier dynamics behind thermal droop in GaInN-based blue light-emitting diodes (LEDs) by separating multiple physical factors. To this end, first, we study the differential ca...
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Chapter and Conference Paper
Development of Bio-signal Acquisition and Processing System and Its Utilization for Educational Purpose
There are many biological signal measurement systems such as BIOPAC and evaluation boards for specific signals. However, most of these boards and systems are manufactured for research, not for educational purp...
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Article
Effects of degree and symmetricity of bilateral spectral smearing, carrier frequency, and subject sex on amplitude of evoked auditory steady-state response signal
The characteristics of an auditory steady-state response (ASSR) signal can be affected by the pathophysiological statuses of the left and right ears, such as a smeared sensation by native spectral smearing owi...
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Article
Open AccessModified carbon nitride nanozyme as bifunctional glucose oxidase-peroxidase for metal-free bioinspired cascade photocatalysis
Nanomaterials-based biomimetic catalysts with multiple functions are necessary to address challenges in artificial enzymes mimicking physiological processes. Here we report a metal-free nanozyme of modified gr...
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Chapter and Conference Paper
A Haptic Feedback Touch Panel
We present a haptic feedback touch panel. This actuator is capable of generating haptic stimulations, and thus can be used as a vibrotactile display. It is composed of two layers, a touch panel and a glass pan...
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Article
Silver-Nanowires Coated Pitch-Tuned Coiled Polymer Actuator for Large Contractile Strain under Light-Loading
We report a pitch-tuned coiled polymer actuator (CPA) with a compliant silver-nanowires (AgNWs) electrode. For a pitch-tuning of the CPA, we sequentially implement a twist-insertion for coiling a nylon-6 fiber...
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Article
Open AccessMetal-organic framework patterns and membranes with heterogeneous pores for flow-assisted switchable separations
Porous metal-organic-frameworks (MOFs) are attractive materials for gas storage, separations, and catalytic reactions. A challenge exists, however, on how to introduce larger pores juxtaposed with the inherent...
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Article
Open AccessMechanical Vibration Influences the Perception of Electrovibration
Recently, various methods using, simultaneously, two types of tactile feedback have been proposed to emulate a real object. However, the possible masking effect when providing two types of tactile feedback has...
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Article
Open AccessIntensified synthesis and post-synthetic modification of covalent organic frameworks using a continuous flow of microdroplets technique
Covalent organic frameworks (COFs) are two-dimensional/three-dimensional crystalline polymeric materials with diverse molecular backbones and topologies and are strong candidates for numerous applications. How...
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Chapter and Conference Paper
Simultaneous Representation of Texture and Geometry on a Flat Touch Surface
We propose to combine two types of tactile feedback, electrovibration and mechanical vibration, for haptic interaction on a flat touch surface. This approach would enrich haptic effects for touch screen-based ...
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Article
Effects of spectral smearing of stimuli on the performance of auditory steady-state response-based brain–computer interface
There have been few reports that investigated the effects of the degree and pattern of a spectral smearing of stimuli due to deteriorated hearing ability on the performance of auditory brain–computer interface...
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Article
Sex differences of cognitive load effects on object-location binding memory
In this study, we investigated where the sex differences of object-location binding memory performance were influenced by the cognitive load. We used the fractal objects version of the ‘What was where?’ task ...
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Article
Open AccessEmerging Microreaction Systems Based on 3D Printing Techniques and Separation Technologies
The past three decades have seen increasing progress in the integration and process diversification of microfluidic systems for use in chemistry, biochemistry, and analysis. Here we summarize recent achievemen...
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Article
Analysis of temporal firing patterns of primary afferent C-fibers for different sensations in mice
Some people with amputated limbs can benefit from neural prosthetics to restore tactile sensation through electrical stimulation of the afferent nerve. The temporal spike train pattern generated in healthy sub...
