Abstract:
A driving wheel of a robot moving along a wire includes an inner wheel in which a rotation axis being driven to rotate by a motor is fitted, an outer wheel formed to surround the inner wheel and seated on the wire, and a shock absorbing support to elastically connect and support the inner wheel and the outer wheel between the inner wheel and the outer wheel, and a shock being transmitted is absorbed by allowing a relative movement of the inner wheel and the outer wheel by the elastic movement of the shock absorbing support. A robot moving includes a robot body, the driving wheel, a motor to drive the driving wheel by rotating the rotation axis, a connecting arm to connect and support the driving wheel and the robot body.
Abstract:
One aspect of the present disclosure is a method for selective surface functionalization using a single-photon source. The method for selective functionalization using a single-photon source includes: (a) adding a single-photon source to a solution containing a photosensitizer and a monomer; and (b) emitting a single photon from the single-photon source. One aspect of the present disclosure is a selectively functionalized single-photon source prepared by the method.
Abstract:
Provided is an apparatus for cell particle sorting based on microfluidic-chip flow, by using a design in which Dean flow focusing occurring in a spiral channel and hydrodynamic filtration are coupled. The apparatus comprises a first substrate including a spiral channel having an inner surface and an outer surface based on a radius of curvature, a sample solution inlet, a medium inlet, and a spiral inner-outlet and a spiral outer-outlet both for discharging the particles, and a second substrate including a main channel in which the sample solution discharged from the first substrate and passing through an inter-substrate way flows and a cut-off width WC is set, a side channel allowing a medium introduced into the medium inlet to flow to focus the sample solution on a sidewall of the main channel, a plurality of branch channels connected to the sidewall of main channel and configured to receive the particles from the main channel, a main channel outlet, and at least one branch channel outlet.
Abstract:
Provided is an extreme ultra-violet (EUV) beam generation apparatus using multi-gas cell modules in which a gas is prevented from directly flowing into a vacuum chamber by adding an auxiliary gas cell serving as a buffer chamber to a main gas cell, a diffusion rate of the gas is decreased, a high vacuum state is maintained, and a higher power EUV beam is continuously generated.
Abstract:
In artificial vision parameter automating method, the system includes a sensory module, a communication module, a database, an image processing module, a learning module and a automating and storing module. The sensory module is configured to take images. The communication module is configured to be send the data obtained from the sensory module to the database. The database is configured to store the images received from the communication module. The image processing module is configured to convert a selected image from the database into a low-resolution phosphene image, to generate test images with various artificial vision parameters. The learning module is configured to extract important features from high-resolution training images, and to build various machine learning models competent at identifying visual stimuli from low-resolution phosphene images. The automating and storing module is configured to automatically select and store primary test data, based on the learning in the learning module.
Abstract:
One embodiment of the present invention provides an optical imaging apparatus using a metamaterial including a metamaterial array sensor which includes a plurality of unit cells made of a metamaterial and is positioned adjacent to an observation object, an imaging beam providing unit which provides an imaging beam toward the metamaterial array sensor, a control beam providing unit which controls a control beam provided to the unit cell to block the imaging beam incident on the unit cell, and an imaging beam measuring unit which measures a unit cell imaging beam transmission amount passing through the unit cell by measuring an imaging beam transmission amount of the metamaterial array sensor when the imaging beam passes through the unit cell and an imaging beam transmission amount of the metamaterial array sensor when the control beam is focused on the unit cell to block the imaging beam incident on the unit cell.
Abstract:
According to one aspect of the present invention, a switching device using an electron shuttle includes a substrate, a center portion fixed onto the substrate, a first wing portion extending from the center portion in a first direction and spaced apart from the substrate, a second wing portion extending from the center portion in a second direction and spaced apart from the substrate, a conductive first electron shuttle connected to the first wing portion and disposed to be spaced apart from the substrate, and a conductive second electron shuttle connected to the second wing portion and disposed to be spaced apart from the substrate.
Abstract:
Disclosed are herein an apparatus and method for extreme ultraviolet (EUV) spectroscope calibration. The apparatus for EUV spectroscope calibration includes an EUV generating module, an Al filter, a diffraction grating, a CCD camera, a spectrum conversion module, and a control module that compares a wavelength value corresponding to a maximum peak among peaks of the spectrum depending on the order of the EUV light converted from the spectrum conversion module with a predetermined reference wavelength value depending on an order of high-order harmonics to calculate a difference value with the closest reference wavelength value, and controls the spectrum depending on the order of the EUV light converted from the spectrum conversion module to be moved in a direction of wavelength axis by the calculated difference value. Thus, it is possible to accurately measure a wavelength of a spectrum of EUV light used in EUV exposure technology and mask inspection technology.
Abstract:
Disclosed are an apparatus for estimating a pedestrian position based on pedestrian motion recognition, and a method therefor. The method for estimating the pedestrian position based on pedestrian motion recognition includes recognizing a specific motion of a plurality of motions of the pedestrian, performing a unique pedestrian dead-reckoning (PDR) technique corresponding to the recognized specific motion among unique PDR techniques for each of the plurality of motions of the pedestrian, and estimating the pedestrian's position by the performed unique PDR technique.
Abstract:
A method for forming a PN junction in graphene includes: forming a graphene layer, and forming a DNA molecule layer on a partial region of the graphene layer, the DNA molecule layer having a nucleotide sequence structure designed to provide the graphene layer with a predetermined doping property upon adsorption on the graphene layer. The DNA molecule has a nucleotide sequence structure designed for doping of graphene so that doped graphene has a specific semiconductor property. The DNA molecule is coated on the surface of the graphene layer of which the partial region is exposed by micro patterning, and thereby, PN junctions of various structures may be formed by a region coated with the DNA molecule and a non-coated region in the graphene layer.