Abstract: The importance of architectural asymmetry is investigated to improve the output voltage of TENGs with polyester/spandex blend three-dimensional (3D) spacer fabrics. Different types of TENGs are fabricated by stacking the 3D spacer fabrics, polydimethylsiloxane (PDMS) films, and electrodes with different stack configurations. The 3D spacer fabric TENGs fabricated with higher architectural asymmetry show higher output voltages than those fabricated with lower architectural asymmetry. In particular, the TENG with the PDMS/fabric/fabric configuration shows the highest peak-to-peak output voltage among all types. An increase in the TENG output voltage is attributed to the relatively high architectural asymmetry in the device configuration and the relatively high effective density of triboelectric charge.

Abstract: Organic polymer semiconductor-based polymer solar cells (PSCs) have attracted considerable research interest due to having excellent electrical, structural, optical, mechanical, and chemical properties. In the past 20 years, considerable efforts have been made to develop PSCs. Generally, poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is used as a hole transport layer (HTL) of the PSC to enhance hole extraction efficiency, but highly acidic PEDOT:PSS destroys an indium tin oxide (ITO) electrode and an active layer and thus reduces the lifetime of the device. To avoid this problem, some attempts have been made to develop inverted PSCs having different electron transport layers (ETLs). However, such a device has limited power conversion efficiency (PCE) due to low electron mobility of the ETL. Therefore, attempts have been made to enhance the PCE of inverted PSCs using indium gallium zinc oxide (IGZO) having optimized indium (In), gallium (Ga), and zinc (Zn) contents.

Abstract: An information management apparatus may include a storage device that separately stores ontology information of an intelligent robot that provides a service and includes a plurality of repositories each having meta information. A storage management device sorts and stores ontology information of the intelligent robot in the plurality of repositories based on a prefix of the ontology information of the intelligent robot and the meta information.

Abstract: The present invention discloses a Quantum Fourier Transformation (QFT) circuit and a method of forming the QFT circuit capable of reducing the number of T-count and T-depth. The method of forming a QFT circuit comprises moving Hadamard gate (H-gate) of an even-numbered qubits to the earliest stage where there is no quantum entanglement with other qubits, in a standard n (n is a natural number greater than or equal to 5) qubit QFT, decomposing quantum circuit into a form in which Rz gate is implemented, using quantum addition, and reducing a number of Rz gate layers using ancilla qubits.

Abstract: An air control system and method using air in an upper zone of the atmosphere are disclosed. An air control system using air in an upper zone of the atmosphere includes: a floating body 11 provided to stay in the upper zone of the atmosphere; air transporting pipes 15a and 15b interlocked with the floating body 11 to transport air in the upper zone of the atmosphere; blowers 22a and 22b mounted below the air transporting pipe 15a and 15b; and an air transporting controller 18 controlling an operation of the blowers 22a and 22b. According to the embodiment of the present invention, it is possible to implement functions such as cooling, drying, and purifying of the surrounding air, removing mist, or generating clouds through the transport of dry and low-temperature clean air in the upper zone of the atmosphere with a simple structure.

Abstract: A data scrambling method for controlling a code density according to an exemplary embodiment of the present disclosure includes receiving a plain code which is a code to be stored in the non-volatile memory device and a storage address at which the plain code is recorded; determining a rank corresponding to the plain code, using an ET table including appearance frequency rank information corresponding to individual plain code; calculating an adjustment rank corresponding to the plain code, using the rank and a random number that is generated based on the address of storage address; determining a cipher code corresponding to the appearance frequency rank of the plain code, using the adjustment rank and an ECC table including rank information determined by an objective function for individual cipher code; and storing the cipher code in the storage address.

Abstract: A preconditioned conjugate gradient (PCG) solver, embedded in an electronic device to perform a simultaneous localization and mapping (SLAM) operation, includes an image database, a factor graph database, and a back-end processor, wherein the back-end processor is configured to receive an image from the image database to perform re-localization, receive, from the factor graph database, data for calculating six degrees of freedom (DoF)-related components, construct a matrix including the six degrees of freedom-related components based on the received data, and load and rearrange the matrix and a vector, to perform calculation on each block of each row of the matrix and the vector, then output first data, and shift second data to a location of the first data.

Abstract: Provided are a method and a system for broadcasting a disaster alert. The method of broadcasting a disaster alert includes: receiving an Advanced Emergency Alert Table (AEAT) message and an Advance Emergency Alert (AEA) message generated to include an NRT component corresponding to a multimedia file from an AEA message application according to an AEA protocol; receiving trigger information extracted from a Cell Broadcast Service (CBS) message from a Non-3GPP InterWorking Function (N3IWF); and transmitting the AEA message to a mobile terminal through an Advanced Television Systems Committee (ATSC) 3.0 broadcast station according to the trigger information.

Abstract: An adaptive continuous-time linear equalizer (CTLE) includes a CTLE cell including input terminals and output terminals, a low-pass filter configured to respectively output low-band differential signals obtained by respectively low-pass filtering differential output signals, and an error amplifier configured to amplify a difference between the low-band differential signals and output the difference as a control voltage. The CTLE cell includes first and second transistors each including an input terminal and an output terminal and an offset compensator configured to adjust a potential difference between a supply voltage source and the output terminal according to the control voltage.

Abstract: A method of adaptively training an equalizer system of a PAM-N receiver is disclosed. The method of training an equalizer system according to the present invention employs a training pattern including a first training data pattern and second training data pattern to tune the continuous-time linear equalizer, decision feedback equalizer and sampler constituting the equalizer system before use in actual communication enabling long-distance, high-speed communication.

Abstract: A method of adaptively training an equalizer system of a PAM-N receiver is disclosed. The method of training an equalizer system according to the present invention employs a training pattern including a first training data pattern and second training data pattern to tune the continuous-time linear equalizer, decision feedback equalizer and sampler constituting the equalizer system before use in actual communication enabling long-distance, high-speed communication.

Abstract: A PAM-N receiver capable of adaptively adjusting threshold voltages determining a level of a received signal and a method of adaptively adjusting threshold voltages thereof are disclosed. According to the method of the present invention, the result of comparison between reference data levels and the level of data in the received signal are used to adjust the reference data levels, and the threshold voltages of a PAM-N receiver are adaptively calculated from the adjusted reference data levels, thereby reflecting transmission line conditions and Inter-Symbol Interference.

Abstract: The present invention relates to a method for preparing a fully ceramic capsulated nuclear fuel material containing three-layer-structured isotropic nuclear fuel particles coated with a ceramic having a composition which has a higher shrinkage than a matrix in order to prevent cracking of ceramic nuclear fuel, wherein the three-layer-structured nuclear fuel particles before coating is included in the range of between 5 and 40 fractions by volume based on after sintering.

Abstract: A PAM-N receiver capable of adaptively adjusting threshold voltages determining a level of a received signal and a method of adaptively adjusting threshold voltages thereof are disclosed. According to the method of the present invention, the result of comparison between reference data levels and the level of data in the received signal are used to adjust the reference data levels, and the threshold voltages of a PAM-N receiver are adaptively calculated from the adjusted reference data levels, thereby reflecting transmission line conditions and Inter-Symbol Interference.

Abstract: Provided is a thermoelectric element assembly including a soft support including a plurality of through-holes, and a plurality of p-type thermoelectric elements and a plurality of n-type thermoelectric elements inserted into a plurality of through-holes of the support, wherein a thickness of the support is less than a length of the thermoelectric element.

Abstract: An apparatus for accelerating simultaneous localization and mapping (SLAM) includes a SLAM processor including a front-end processor and a back-end processor. The front-end processor is configured to track a position of a first feature, among features extracted from a first frame, in a second frame subsequent to the first frame, and the back-end processor is configured to obtain a first measurement regarding a map point and a camera pose of the first feature based on the position of the first feature in the second frame tracked by the front-end processor, compute elements affecting an optimization matrix in relation to the first measurement, among elements of a Hessian matrix regarding the map point and the camera pose, and accumulate the computed elements in the optimization matrix used to perform an optimization operation with respect to states of the map point and the camera pose.

Abstract: The present disclosure relates to an ion gel having superior ion conductivity and mechanical strength, a polymer electrolyte including the same, and a manufacturing method thereof. The method of manufacturing the ion gel is capable of simply and effectively manufacturing a polymer matrix through a one-pot reaction, thus exhibiting simple processing steps to thereby manifest excellent processing efficiency and generate economic benefits. Moreover, the polymer electrolyte including the ion gel can exhibit superior ion conductivity and mechanical strength despite the low glass transition temperature (Tg) of the monomer contained in the polymer matrix.

Abstract: The present invention relates to an optical fiber device for removing cladding light, an apparatus and a method for etching the same.

Abstract: The present invention relates to a face recognition method and a face recognition device, the method including: a step for detecting one or more faces in an image frame; a step for updating a face object in a face list by using the one or more pieces of detected face information; and a step for recognizing an identity corresponding to the face object by using a plurality of feature vectors of the face object in the updated face list.

Abstract: The present invention relates to an optical fiber device for removing cladding light, an apparatus and a method for etching the same.