Abstract: A lumbar retractor according to an embodiment comprises: a first fixing part for fixing the user's lumbar regions; a second fixing part for fixing the user's pelvic regions; and a connection part disposed between the first fixing part and the second fixing part to connect the first fixing part and the second fixing part, wherein the distance between the first fixing part and the second fixing part can be adjusted by changing the length of the connection part, and the first fixing part can press each of a plurality of segments of the user's lumbar regions individually.

Abstract: A method and apparatus for a surgical procedure simulation based on virtual reality (VR) are provided. The method includes generating a virtual three-dimensional (3D) body model corresponding to a body part of a subject of a surgical procedure based on a computed tomography (CT) image and providing a surgical procedure simulation for spinal cord stimulation based on the virtual 3D body model. The providing of the surgical procedure simulation for spinal cord stimulation includes outputting a virtual screen including the virtual 3D body model and a virtual C-arm apparatus, providing a surgical procedure simulation of loss of resistance (LOR) according to a selection of a user wearing the surgical procedure simulation apparatus within the virtual screen, and providing, when the surgical procedure simulation of LOR is completed, a surgical procedure simulation for lead insertion into a virtual spinal cord part included in the virtual 3D body model.

Abstract: The telemedicine system includes a gateway for transmitting monitoring information including a stimulation signal and a biosignal corresponding to the stimulation signal to a cloud; and a server for extracting the stimulation signal and the biosignal from the transmitted monitoring information, providing the extracted stimulation signal and biosignal as inputs of a pre-stored artificial intelligence machine learning algorithm-based stimulation control model, regenerating the biosignal as an output of the stimulation control model into a stimulation signal to be regulated for the balance between sympathetic and parasympathetic nerves, and feeding back the regenerated stimulation signal to a personalized vagus nerve stimulation and pulse electromagnetic field treatment device.

Abstract: A tunneling device includes a first semiconductor portion disposed on a first oxide substrate, a second semiconductor portion disposed on the first semiconductor portion, and an intermediate layer disposed between the first semiconductor portion and second semiconductor portion. The intermediate layer is a natural oxide film obtained by naturally oxidizing one surface of the second semiconductor portion for a predetermined time.

Abstract: A processor-implemented method with virtual object rendering includes: determining a plurality of predictive trajectories of a first object according to a Gaussian random path based on a high-level model that is trained by hierarchical reinforcement learning; determining direction information of a second object according to subgoals corresponding to the predictive trajectories based on a low-level model that is trained by hierarchical reinforcement learning; determining direction information of the second object according to a subgoal corresponding to one of the predictive trajectories based on an actual trajectory of the first object; and rendering the second object, which is a virtual object, based on the determined direction information.

Abstract: Provided are Fc variants having improved half-life by binding to and unbinding from FcRn in a pH-dependent manner and which have improved selective binding to Fc? receptors. The human Fc domain variants have lower capacity to bind to immune inhibiting receptor Fc?RIIb and have higher capacity to bind to immune activating receptor Fc?RIIa (increased A/I ratio) than a wild-type human antibody Fc domain and conventional antibodies approved as antibody therapeutic agents, thereby having remarkably improved ADCP induction ability and having maximized half-life in blood in which excellent pH-selective FcRn binding and unbinding capacity is exhibited, and thus bind to numerous peptide drug therapeutics having a low half-life and retention time in the body to enable the peptide drug therapeutics to have an increased blood half-life and exhibit long-term drug efficacy, and can maximize the immune mechanism of therapeutic protein drugs to be effectively used as an improved antibody drug.

Abstract: Provided are a spectral camera and an electronic apparatus including the same. The spectral camera includes an image sensor including a plurality of channels configured to detect a plurality of central wavelengths; an optical module configured to be movable with respect to the image sensor to provide an image of an object on the image sensor; a memory configured to store first information about a change in an optical characteristic of each of the plurality of channels in the image sensor, the change in the optical characteristic of each of the plurality of channels corresponding to a movement of the optical module; and a processor configured to: obtain the first information from the memory, obtain second information corresponding to the plurality of central wavelengths detected by the image sensor, and obtain third information by correcting the second information based on the first information.

Abstract: The present disclosure relates to an organic compound having the following structure, and an organic light emitting diode (OLED) and an organic light emitting device including the organic compound. Applying the organic compound into an emissive layer makes the OLED and the organic light emitting device lower their driving voltage, improves their luminous efficiency and color purity.

Abstract: Disclosed is a device for analyzing a single cell using a micropore including an inlet chamber; an outlet chamber provided on an opposite side of the inlet chamber; a pore membrane disposed between the inlet chamber and the outlet chamber; a pressure generating means provided in the inlet chamber or the outlet chamber; and a pair of electrodes respectively disposed in front and rear of the pore membrane, wherein a diameter D of the micropore is larger than a diameter of the target cell, a thickness t of the pore membrane is 0.5 ?m to 1 mm, and a slenderness ratio (t/D) is 0.001 to 5.

Abstract: The present invention relates to utilizing a prepared chiral ferromagnetic nanomaterial for a spintronic nanomaterial, such as an actual magnetic memory, and a device for measuring the asymmetrical magnetotransport property coupled with an electromotive force may include a rotating device that generates a rotational motion in an electrode; a stack stacked on the electrode; a chiral nanostructure in which a chiral ferromagnetic nanocoil is deposited on the stack, and, in response to the rotating device rotating, chirality-induced spin selectivity or the asymmetrical magnetotransport property may be measured through the chiral nanostructure.

Abstract: Disclosed is a method of detecting and responding to an attack, the method being performed by a computing device, the method including: obtaining a Controller Area Network (CAN) message from a bus of a CAN; obtaining a first voltage level based on the CAN message; and comparing the first voltage level with a preset normal voltage level to determine whether there is an attack.

Abstract: Disclosed is a computing-in-memory device, which includes a memory cell array including an analog multiplication unit that performs a multiply-accumulate (MAC) operation on a pre-stored weight and a first analog voltage corresponding to multi-bit input data, and a driver that applies the multi-bit input data to the analog multiplication unit, and the analog multiplication unit includes a digital-to-analog converter that converts the multi-bit input data into the first analog voltage.

Abstract: Disclosed is a head-up haptic display device for a vehicle including a display unit for displaying information on a display area and sensing a touch input and a pressing input of a user with respect to the display area; a haptic unit for providing the display area with vibration, and a resistance force with respect to the pressing input; and a control unit for determining whether the touch input is sensed in a button area within the display area, controlling the haptic unit to provide the vibration to the display area based on whether the touch input is sensed, determining whether the pressing input is sensed in each of a non-button area within the display area except the button area and the button area, and controlling the haptic unit to provide the resistance force to the display area based on whether the pressing input is sensed.

Abstract: The present invention relates to a haptic actuator using a magnetorheological elastomer and a magnetorheological fluid, which has a shape in which a magnetorheological elastomer surrounds a ferrous elastomer and a magnetorheological fluid, the haptic actuator being capable of providing kinesthetic feedback related to an external force by increasing rigidity of the magnetorheological elastomer and increasing viscosity of the magnetorheological fluid, and capable of providing vibration feedback by generating vibration by being repeatedly compressed and restored in shape when an alternating current magnetic field is applied.

Abstract: Disclosed is a method of extracting file feature information, the method being performed by a computing device including at least one processor, the method including: converting input data in a form of a binary file into data with a preset size; and extracting feature information of the input data from the data with the preset size. The representative drawing may be FIG. 2.

Abstract: A method of training an artificial intelligence model by using a hardware accelerator includes obtaining a training dataset including a plurality of first block floating-point values having a first block size, performing a training operation on the artificial intelligence model, based on the training dataset, repeating the training operation on the artificial intelligence model for a predefined number of epochs, and reconstructing the training dataset with a plurality of second block floating-point values having a second block size.

Abstract: Disclosed herein are a time synchronization method and apparatus for a low-orbit satellite cluster. The time synchronization method for a low-orbit satellite cluster includes: receiving time information from N participating satellites directly connected; calculating a reference time using time information based on a reliability of each of the N participating satellites; performing time synchronization using the reference time and then recording a synchronization history; and generating a new block using the synchronization history.

Abstract: The present invention relates to a glycosylated Fc variant with improved selective binding affinity to Fc?RIIIa. Novel human antibody Fc domain variants of the present invention have reduced binding affinity to Fc?RIIIb, which is an immuno-inhibitory receptor, compared to antibodies approved as conventional antibody therapeutic agents, and have improved binding affinity to Fc?RIIIa (an increase in the A/I ratio), which is an immuno-activating receptor, and thus have a significantly improved ability to induce ADCC, and have the effect of maximizing the immune action mechanism of therapeutic protein drugs, and thus can be effectively used as antibody drugs.

Abstract: This invention relates to a device for delivering substances within cells, comprising one or more main channels that extend in a first direction from one end to another and are equipped with a fluid passage inside; a first supply part connected to one end of the main channel, which injects a first fluid containing the cells and substances; and a second supply part connected to one end of the main channel, which injects a second fluid that does not mix with the first fluid. The interior of the main channel includes one or more compressing blocks, pertaining to a cell interior substance delivery platform.

Abstract: The present invention relates to a textile material-based porous water splitting catalyst and a preparation method therefor, and the textile material-based porous water splitting catalyst according to the present invention comprises: a porous textile support (10) formed by the inter-crossing of a plurality of fibers (11); binding layers (20) formed on the surface of the fibers (11); conductive layers (30) comprising nanoparticle layers (31), which comprise metal nanoparticles and are formed on the binding layers (20), and monomolecular layers (33), which comprise a monomolecular material containing an amine group (NH2) and are formed on the nanoparticle layers (31); and catalyst layers (40) which comprises a catalytic metal, and which is formed on the conductive layers (30) by the electroplating of the catalytic metal.