Abstract: The present invention relates to an X-ray imaging device for minimally invasive surgery, the device including: a rod having a clamp module disposed at a first end of the rod and including a first clamp body, a second clamp body, and a clamp support; an X-ray emission module; an X-ray sensing module; and a manipulation module, in which the rod is inserted into the human body, X-rays are emitted from the X-ray emission module with the first end of the first clamp body and the first end of the second clamp body open with a lesion positioned therebetween in the human body, and the X-rays travel through the lesion and is then sensed by the X-ray sensing module.

Abstract: Provided is a liquid crystal polarization antenna including a plurality of unit cells arranged two-dimensionally in a first direction and a second direction perpendicular to the first direction, and a conductive line configured to electrically connect to each other the unit cells arranged in the first direction of the plurality of unit cells.

Abstract: The present disclosure relates to an intercellular proximity labeling technique. According to an embodiment of the present disclosure, intercellular proximities can be distinguished by cell types, in particular, synapses of nerve cells can be distinguished by types.

Abstract: A processor-implemented data processing method includes encoding a plurality of weights of a filter of a neural network using an inverted two's complement fixed-point format; generating weight data based on values of the encoded weights corresponding to same filter positions of a plurality of filters; and performing an operation on the weight data and input activation data using a bit-serial scheme to control when to perform an activation function with respect to the weight data and input activation data.

Abstract: A host includes: an index tree storing an index including information for identifying a versioning key; and an index update buffer storing a write key included in data subject to a write request and the versioning key corresponding to the write key. When a preset update condition is satisfied, the host transfers the versioning key stored in the index update buffer to the index tree, and when the index update buffer requires recovery, the host designates a recovery section of memory of the storage device including data corresponding to the versioning key which has not been updated to the index tree, to be read by a plurality of threads, reads data included in the recovery section from the storage device through the plurality of threads, and inserts the read data into the index update buffer to recover the index update buffer.

Abstract: A phase mixing circuit for a multi-phase signal includes a jitter cancellation circuit configured to mix phases of a signal input to a first node and a signal input to a second node to produce signals at a third node and a fourth node; and a delay adjustment circuit configured to adjust delays of the signals output from the third node and the fourth node to produce signals at a fifth node and a sixth node.

Abstract: An operating method of a server for calculating a position of a measurement target includes receiving first measurement information including a result of measuring the measurement target by a first electronic device, receiving second measurement information including a result of measuring the measurement target by a second electronic device, and calculating the position of the measurement target based on the first measurement information and the second measurement information.

Abstract: A resonant cavity structure includes an upper layer in which first dielectric layers and second dielectric layers having different refractive indices are alternately stacked, a lower layer in which the first dielectric layers and the second dielectric layers are alternately stacked, and a cavity formed between the upper layer and the lower layer, wherein the cavity includes a wavelength conversion material that absorbs light having a first wavelength and emits light having a second wavelength different from the first wavelength, the resonant cavity structure is designed so that resonance occurs in the cavity at the first wavelength, and is provided so that an excitation light of the first wavelength is incident from below the lower layer.

Abstract: A motor driving apparatus which drives a motor including a plurality of windings corresponding to a plurality of phases, respectively, includes: a first inverter including a plurality of first switching elements and connected to a first end of each of the windings; a second inverter including a plurality of second switching elements and connected to a second end of each of the windings; and a controller obtaining a vector corresponding to a voltage command of the motor by combining switching vectors which cause difference between a common mode voltage of the first inverter and a common mode voltage of the second inverter to be zero and configured to control the plurality of first switching elements and the plurality of second switching elements in a pulse width modulation method based on the obtained vector.

Abstract: A Raman spectroscopy apparatus using a nano printing device is provided to perform Raman spectroscopy on nanoscale nanostructures printed from the nano printing device. The Raman spectroscopy apparatus includes a laser light source configured to generate and emit a laser light to the nanostructures, and a Raman detector configured to collect spectroscopic information from the light scattered by the nanostructures.

Abstract: Disclosed is a gear including a resettable metallic glass. The gear of the present disclosure includes, as a base material, a resettable metallic glass, wherein the resettable metallic glass includes at least one metal element selected from each of (a) the group consisting of Ti, Zr, and Hf and (b) the group consisting of Fe, Co, Ni, Cu, and Zn, and further includes at least one metal element to maximize the complexity in the thermodynamic enthalpy of mixing among constituent elements, thereby including multiple resetting cores in various atomic-scale cluster forms in an amorphous matrix, leading to a structure with maximized structural complexity.

Abstract: A semiconductor device includes a cell circuit including a plurality of memory arrays, and a control circuit configured to control the cell circuit. A memory array of the plurality of memory arrays has a plurality of sub-arrays including a first sub-array and a second sub array, and an array connecting circuit configured to connect bit lines of the first sub-array to respective corresponding bit lines of the second sub-array according to a copy signal. The semiconductor device may further include a partial sum circuit configured to perform charge sharing between a plurality of bit lines of the first sub-array.

Abstract: Provided herein are methods of forming a coating film that include providing a coating source including an orthorhombic vernier phase rare-earth element oxyfluoride and a part in a vacuum chamber, and performing a physical vapor deposition (PVD) process to form the coating film the part, wherein the coating film includes the orthorhombic vernier phase rare-earth element oxyfluoride. Apparatus including parts having coating films comprising an orthorhombic vernier phase rare-earth element oxyfluoride are also provided.

Abstract: A neural network includes a drop layer configured to drops feature values. A method of computation using the neural network includes extracting feature data from input data using a first portion of a neural network, generating compressed representation data of the extracted feature data by dropping a feature value from the extracted feature data at a drop layer of the neural network based on a drop probability corresponding to the feature value, and indicating an inference result from the compressed representation data using a second portion of the neural network.

Abstract: A processor-implemented method with homomorphic encryption includes: receiving a first ciphertext corresponding to a first modulus; generating a second ciphertext corresponding to a second modulus by performing modulus raising on the first ciphertext; and performing bootstrapping by encoding the second ciphertext using a commutative property and an associative property of operations included in a rotation operation.

Abstract: A light-emitting device may include a plurality of light-emitting rods. Each of the plurality of light-emitting rods may include a first semiconductor layer having a rod shape, an active layer having a shell shape disposed about a plurality of surfaces of the first semiconductor layer, and a second semiconductor layer having a shell shape disposed about a plurality of surfaces of the active layer. The light emitting device may further include an insulating layer disposed in spaces between the plurality of light-emitting rods; a transparent electrode electrically connected to the first semiconductor layer of each of the plurality of light-emitting rods; and a reflective electrode electrically connected to the second semiconductor layer of each of the plurality of light-emitting rods.

Abstract: A device and a method of detecting a concentration of a sample are provided. The device includes a power supply unit configured to supply power to generate plasma, a plasma generation unit connected to the power supply unit and including a pair of electrodes facing each other, a plurality of signal detection units arranged on the pair of electrodes and configured to sense light emitted from the sample because of the plasma, and a controller configured to control a driving start point of the signal detection unit so that the signal detection unit is driven after a preset period of time after oscillation is terminated between the pair of electrodes.

Abstract: A method of performing a class incremental learning in a neural network apparatus, the method including training an autoencoder using first input embeddings with respect to a first class group, calculating a contribution value of each of parameters of the autoencoder and calculating a representative value with respect to each of at least one first class included in the first class group in the training of the autoencoder, retraining the autoencoder using second input embeddings with respect to a second class group, and updating the contribution value of the each of the parameters and calculating a representative value with respect to each of at least one second class included in the second class group in the retraining the autoencoder.

Abstract: A motor driving device drives a motor having a plurality of windings corresponding to a plurality of phases. The motor driving device includes: a first inverter configured to include a plurality of first switching elements and connected to first stages of the plurality of windings; a second inverter configured to include a plurality of second switching elements and connected to second stages of the plurality of windings; and a controller configured to fix switching states of the second switching elements and switch the first switching elements to compose target voltage vectors if the motor is driven in an open end winding type by operating the first inverter and the second inverter in a space vector pulse width modulation mode.

Abstract: Provided are a method of manufacturing a micro-LED and a method of manufacturing a display apparatus to which the method is applied. In the method of manufacturing a micro-LED, a membrane formed to include a cavity is formed on a substrate, and then, a sacrificial layer that may be selectively removed by wet etching is formed on the membrane. Next, a light-emitting device is formed on the sacrificial layer, and the light-emitting device is separated from the membrane by the wet etching. In an example, an undoped semiconductor layer may further be formed between the membrane and the sacrificial layer. The sacrificial layer may include an oxide layer having the same crystal lattice structure as that of the undoped semiconductor layer. In an example, another undoped semiconductor layer may further be formed between the sacrificial layer and the light-emitting device.