Abstract: An embodiment of the present disclosure provides an oral scanner calibration device including: a casing into which an oral scanner body is inserted; a reflector part disposed on a central axis of the oral scanner body and configured to reflect light irradiated from an optical device of the oral scanner body; a pattern plate part configured to face the optical device through the reflector part; a rotating part mechanically fastened to the reflector part and the pattern plate part; and a driving part configured to provide a driving force to the rotating part, wherein, in conjunction with rotation of the rotating part, the reflector part linearly moves relative to the oral scanner body, and the pattern plate part rotates about an optical axis of the light reflected by the reflector part.

Abstract: An embodiment of the present disclosure provides an oral scanner system including: an oral scanner body which has an optical device and an imaging board disposed therein and is configured to receive power from an external power source or an internal battery; and an oral scanner calibration device configured to support the oral scanner body and calibrate the optical device using a pattern plate provided therein, wherein, upon insertion of the oral scanner calibration device into the oral scanner body, the oral scanner calibration device is electrically connected to the oral scanner body, and power is supplied to the oral scanner calibration device.

Abstract: Provided in one embodiment of the present invention is a calibration device for an oral scanner, comprising: a casing in which an oral scanner body is coupled to an open upper part; a rotational part rotatably provided with respect to the casing; a reflector part arranged on the central axis of an optical device in the oral scanner body; and a pattern plate part facing the optical device through the reflector part, wherein the pattern plate part is linked with the rotation of the rotational part and rotates in place, and the reflector part moves in a straight line with respect to the oral scanner body.

Abstract: Present disclosure A hydraulic stopping damper includes a cylinder in which a work fluid is stored, a piston rod coupled such that one side of the piston rod is to be inserted into an inner space of the cylinder, and a rod guide through which the piston rod passes and coupled to one side of the cylinder. The hydraulic stopping damper includes a rebound spring surrounding the piston rod and disposed in an inner space of the cylinder, and a shock mitigator between the rod guide and the rebound spring, the shock mitigator configured to generate a damping force by a hydraulic pressure of the work fluid when one side of the rebound spring compressed in response to a rebound stroke of the piston rod is inserted into the rod guide.

Abstract: Disclosed is a contactless magnetic sensing system. Proposed is a sensing system in which multiple magnetic sensors are disposed at the center of a rotating magnet and rotation angles of the magnetic sensors disposed around a center point at intervals of an angle of 90 degrees can be extracted.

Abstract: Disclosed are a contactless magnetic sensing system and method. Disclosed are a sensing system and method capable of extracting a rotation angle without a problem although the center axis of a rotating magnet is separated and disposed from an extension line in a detection direction of a Z-axis magnetic sensor or a center axis of the magnetic sensor.

Abstract: The present disclosure provides a blood vessel-mimicking microfluidic chip for cell co-culture and a use thereof, wherein the microfluidic chip of the present disclosure is a microfluidic chip capable of co-culturing vascular endothelial cells and cancer cells, and can mimic normal vascular tissue, cancer tissue, and cancer-metastatic vascular tissue, and therefore can be widely used in studies associated with cancer, and especially, is suitable in studies on cancer metastasis, intravenous injection environments for cancer treatment, photothermal therapeutic effects on cancer cell, and the like.

Abstract: Disclosed is a polypeptide containing an extracellular domain of a synaptogenic protein, and a method for manufacturing a nerve cell, a complex containing a biotin tagged at the C-terminus of the polypeptide, an artificial synapse inducer for coupling the composite to a streptavidin (SAV)-coated substrate and a nerve cell. The complex tagged with a biotin at the C-terminus of the polypeptide containing the extracellular domain of the synaptogenic protein, such as neuroligin-1, can display activity by being attached to the SAV-coated substrate to adjust the orientation thereof without help of a supported lipid bilayer. The complex containing an additional RFP between the extracellular domain and the biotin of the synaptogenic protein not only facilitates easier mass-production, quantification, and tracking, but also displays activity of a normal synaptogenic protein, thereby inducing excitatory or inhibitory synaptic differentiation by being fixed to the substrate and added to the nerve cell culture.

Abstract: A rotation angle detecting method includes detecting a first rotation angle based on a first measured magnetic value received from a first hall element, detecting a first magnetic value received from a second hall element corresponding to the first detected rotation angle, adjusting a gain based on a first difference value between a second measured magnetic value received from the second hall element, in response to one of the magnetic pieces being rotated at the first rotation angle, and the first magnetic value, redetecting a second rotation angle by applying the gain to the first magnetic value and redetecting a second magnetic value received from the second hall element, corresponding to the second rotation angle, and outputting the second rotation angle as a confirmed rotation angle in response to a second difference value between the second magnetic value and the second measured magnetic value becoming less than a delta value.

Abstract: A rotation angle detecting method includes detecting a first rotation angle based on a first measured magnetic value received from a first hall element, detecting a first magnetic value received from a second hall element corresponding to the first detected rotation angle, adjusting a gain based on a first difference value between a second measured magnetic value received from the second hall element, in response to one of the magnetic pieces being rotated at the first rotation angle, and the first magnetic value, redetecting a second rotation angle by applying the gain to the first magnetic value and redetecting a second magnetic value received from the second hall element, corresponding to the second rotation angle, and outputting the second rotation angle as a confirmed rotation angle in response to a second difference value between the second magnetic value and the second measured magnetic value becoming less than a delta value.

Abstract: Disclosed is a polypeptide containing an extracellular domain of a synaptogenic protein, and a method for manufacturing a nerve cell, a complex containing a biotin tagged at the C-terminus of the polypeptide, an artificial synapse inducer for coupling the composite to a streptavidin (SAV)-coated substrate and a nerve cell. The complex tagged with a biotin at the C-terminus of the polypeptide containing the extracellular domain of the synaptogenic protein, such as neuroligin-1, can display activity by being attached to the SAV-coated substrate to adjust the orientation thereof without help of a supported lipid bilayer. The complex containing an additional RFP between the extracellular domain and the biotin of the synaptogenic protein not only facilitates easier mass-production, quantification, and tracking, but also displays activity of a normal synaptogenic protein, thereby inducing excitatory or inhibitory synaptic differentiation by being fixed to the substrate and added to the nerve cell culture.

Abstract: A damping force controlling shock absorber can generate a hard damping force through disk slits during a low speed operation by adding a disk valve to a chamber, can constantly maintain a pressure of a back pressure compartment by opening a disk valve and discharge the pressure of the back pressure compartment to the outside when the pressure of the back pressure compartment is at a predetermined level or more, thereby generating a harder damping force during a low speed operation, and can adjust a disk valve open pressure during a medium/high speed operation so as to prevent the durability of the equipment from being lowered by an excessive increase of a pressure and prevent an abnormal operation from occurring.

Abstract: Provided is a shock absorber capable of suppressing a great change in a damping force even upon a stroke change. The shock absorber with a pilot chamber includes: a housing that constitutes the pilot chamber and includes a pilot hole and an inflow passage; a disk valve body that allows a fluid inside the pilot chamber to be discharged outside via the pilot hole; and a check valve body that allows the fluid to flow into the pilot chamber through the inflow passage.

Abstract: In a damping force controlling shock absorber, a pilot passage and a bypass passage are shared between a cut-out portion formed in a hollow of a pilot disk and a branch groove of a spool guide, thus simplifying a passage structure, simplifying a passage adjustment structure of a spool, and improving productivity and dispersion of products.

Abstract: Provided are a sensing apparatus using a plurality of Hall sensors and an apparatus using the sensing apparatus. The sensing apparatus is configured to measure an intensity of a magnetic field with respect to a magnetic element by using a plurality of Hall sensors and to identify a body that includes the magnetic element.

Abstract: A damping force controlling shock absorber includes: retainers respectively connected to top and bottom surfaces of the piston, a connection passage communicating with a main passage being formed to vertically penetrate the retainers; housings respectively disposed on corresponding opposite surfaces of the retainers to form pilot chambers on mutual corresponding surfaces of the housings, a pilot passage being formed to vertically penetrate the housings so as to communicate the pilot chambers with the outside; pilot valves that are in close contact with the connection passage between the retainers and the housings to generate a main damping force; and a spool guide that penetrate and connects to the retainers, the housings, and the pilot valves and guides the spool in a state of surrounding the outside of the spool.

Abstract: An electronically controlled internal damper includes: a main passage formed by a working fluid flowing through a main piston; a pilot passage formed by a working fluid as much as a predetermined amount discharged from a first pilot chamber and a second pilot chamber so as to maintain internal pressures of the first pilot chamber and the second pilot chamber to a predetermined level when pressures of the first pilot chamber and the second pilot chamber are increased beyond the predetermined level; and a bypass passage formed by a working fluid passing through the compression retainer and the rebound retainer symmetrically disposed above and under the main piston and a plurality of holes formed transversely to a vertical length direction of a spool rod. Accordingly, the electronically controlled internal damper is capable of implementing damping performance in both a soft mode and a hard mode with a relatively simple structure and increasing sealing performance while reducing rigidity.

Abstract: An electronically controlled internal damper is provided. Due to a structure in which a valve unit is mounted on a spool rod along which a driven spool reciprocates and a damping unit is provided in an outer peripheral surface of the driven spool and the spool rod, it is possible to improve ride comfort by reducing a low-speed damping force of a soft mode in the driven spool and the spool rod without increasing their sizes.

Abstract: The present invention relates to a camera-integrated LED lighting device including a body having an open upper surface and providing an accommodation space therein, the body having a bottom surface formed with a rear portion of the bottom surface arranged lower than a front portion of the bottom surface, a power supply, a communication control unit, and an antenna unit accommodated in the body, a plurality of lighting units coupled to the front portion of the bottom surface of the body, a camera unit coupled to the rear portion of the bottom surface of the body, a cover part openably hinge-coupled to the upper surface of the body at one end thereof and having an antenna cover part formed with a part of the cover part protruding upward to accommodate the antenna unit in a protruded state, and a speaker unit coupled to the bottom surface of the body.

Abstract: In a damping force controlling shock absorber, a pilot passage and a bypass passage are shared between a cut-out portion formed in a hollow of a pilot disk and a branch groove of a spool guide, thus simplifying a passage structure, simplifying a passage adjustment structure of a spool, and improving productivity and dispersion of products.