Abstract: A control device is for use in a case where frame periods, each being a period in which one image continues to be displayed, vary in length within a given range or temporarily become stable in length on a frame-by-frame basis, and accurate lengths of the frame periods are not known beforehand. The control device changes a total number of subframe periods to reconfigure the frame period with n subframe periods, where n is an integer of two or more, regardless of the frame period input, and causes the display of the image. The control device includes a signal processor that outputs an output video signal according to a first input video signal on a subframe-period-by-subframe-period basis; and a controller that supplies the output video signal output from the signal processor and a control signal for controlling an operation of the display panel to the display panel.

Abstract: A method of managing system health is provided. The method includes calculating a reconstruction missing value with respect to the second domain data, determining a degree of degradation of the system on the basis of the reconstruction missing value, predicting a second remaining useful life (RUL) prediction value {tilde over (y)} of the system on the basis of the second domain data, based on a result of the determination of the degree of degradation, optimizing a degradation compensation function on the basis of a distribution of a first RUL prediction value y of the system predicted based on the first domain data in a pre-learning process of the diagnosis model, and predicting a final RUL prediction value {tilde over (y)}? obtained by compensating for the second RUL prediction value {tilde over (y)}, by using the optimized degradation compensation function.

Abstract: An apparatus and a method of predicting a video frame are provided. The apparatus includes a level encoder configured to extract and learn at least one feature from a video frame, a feature learning unit configured to learn based on the at least one feature or transmit predicted feature data corresponding to the at least one feature, and a level decoder configured to obtain and learn a predicted video frame based on the predicted feature data.

Abstract: A method of reducing carbon dioxide (CO2) including contacting a catalyst and the CO2 and irradiating the catalyst and the CO2 with visible light. Upon irradiating the CO2 is reduced to a conversion product. The catalyst includes Fe2TiO5 in the form of nanosheets. The nanosheets have an average width of 200 nanometers (nm) to 800 nm and form a hierarchical structure.

Abstract: Provided herein are a method for modulation of a variable binary offset carrier (VBOC) having a discrete time-variant frequency and a satellite navigation signal generator using the same. The method for modulation of a VBOC having a discrete time-variant frequency may comprise: generating navigation message data; generating a carrier; generating a VBOC subcarrier; generating a pseudo-random code; synthesizing the pseudo-random code and the VBOC subcarrier; and synthesizing a synthesized signal of the pseudo-random code and the VBOC subcarrier, the carrier, and the navigation message data.

Abstract: The disclosure relates to a phase change thermal storage ceramic having high service temperature and improved utilization rate and utilization efficiency of heat. It is prepared at a low cost with a simple, easy-to-industrially-realized method. A mixture is obtained by mixing and stirring evenly 50-85 wt % of fused mullite powder, 10-45 wt % of pretreated aluminum-silicon alloy powder, and 3-8 wt % of ball clay. A ceramic body is formed by press molding the mixture at 80-150 MPa. The ceramic body is cured at 25-28° C. and a relative humidity of 70-75 RH for 24-36 h, dried at 80-120° C. for 24-36 h, and held at 1,100-1,300° C. for 3-5 h to prepare the phase change thermal storage ceramic. The pretreated aluminum-silicon alloy powder is prepared by holding aluminum-silicon alloy powder in water vapor at 0.02-0.20 MPa for 0.5-3 h to impregnate in an alkaline silica sol and drying the impregnated powder.

Abstract: A protection device includes a memory, and processing circuitry coupled to the memory and configured to acquire a list of file paths of predetermined protection target files, and perform an operation of protecting data of a file corresponding to a file path included in the list.

Abstract: Provided are a mesomechanics testing system and method integrating heating and observation, relating to the field of rock mechanics testing. The system includes a control and collection module, a loading module, a vacuum module, and an observation module. The loading module and the observation module are both connected to the control and collection module; the loading module is configured to apply a load required by mechanics testing to a mesoscopic sample to be tested, and transmit mechanics testing data to the control and collection module; the vacuum module is configured to provide the mesoscopic sample with a vacuum space for real-time heating and mechanics testing; and the observation module is configured to collect image data of the mesoscopic sample during the mechanics testing, and transmit the image data to the control and collection module.

Abstract: In an optical transmission system including a plurality of optical transmitting units and a relay device, the plurality of optical transmitting units include a frequency modulation conversion unit that converts an input signal into a frequency modulation signal through frequency modulation conversion processing, a multiplexing unit that multiplexes monitoring signals with different frequencies with the frequency modulation signal, and an optical modulation unit that converts the frequency modulation signal that is an electric signal in which the monitoring signals are multiplexed into optical signals having different wavelengths, and the relay device includes a photoelectric conversion unit that acquires a combined signal obtained by combining optical signals having different wavelengths from each other and converts the combined signal into an electric signal, and a measuring unit that measures transmission quality of the plurality of monitoring signals included in the electric signal.

Abstract: Disclosed are an antimicrobial high-entropy alloy FeCoNiCrCe and a preparation method thereof, falling within the technical field of high-entropy alloys. The high-entropy alloy in the present disclosure has an expression: FeCoNiCrCex, 0.1?x?0.5, and a proportion of each element is a molar ratio. In the present disclosure, the microstructure and mechanical and antimicrobial performances of high-entropy alloy FeCoNiCrCex are improved by adjusting a content of Ce.

Abstract: Provided is a wireless communication terminal. The wireless communication terminal includes a transceiver configured to transmit/receive a wireless signal and a processor configured to control an operation of the wireless communication terminal. The transceiver receives a MAC frame including information on a plurality of wireless communication terminals that are to receive data from a base wireless communication terminal. The plurality of wireless communication terminals include the wireless communication terminal and receive data from the base wireless communication terminal based on the MAC frame.

Abstract: A base station of a wireless communication system is disclosed. The base station of wireless communication includes a communication module and a processor. The processor is configured to receive a grant for scheduling a plurality of uplink transmissions from the base station, and when the UE attempts to a first fixed duration-based channel access for a first transmission which is one of the plurality of uplink transmission and fails in the first fixed duration-based channel access, attempt to a second fixed duration-based channel access for a second transmission which is a transmission following the first transmission.

Abstract: An ultrastable laser system is based on a polarization-maintaining optical fiber. The ultrastable laser system comprises a laser device; acousto-optic modulators, a first beam splitter, a polarizer, an optical fiber interferometer comprising a second beam splitter, an optical fiber delay line, a third acousto-optic modulator, and a beam combiner; a beam combiner, a polarization beam splitter, photoelectric detectors, a frequency synthesizer, frequency mixers, a servo feedback circuit and a piezoelectric ceramic. The temperature interference is eliminated based on the characteristic that refractive indexes of a fast axis and a slow axis of the polarization-maintaining optical fiber differently change with a temperature, a vacuum structure can be avoided, and the ultrastable laser system has low cost, small system, simple structure and high signal stability.

Abstract: An optical communication system includes a looped path in which an active trunk fiber and a standby trunk fiber are connected in a loop. A plurality of optical combining/splitting units is provided on an active trunk fiber in series, and a plurality of slave devices is connected the plurality of optical combining/splitting units, respectively. A master device performs optical communication with each slave device. Each optical combining/splitting unit includes an optical sensor configured to detect an optical signal passing through an optical fiber and a transmitter. The transmitter determines whether or not there is an abnormality in optical communication on the basis of a detection state of the optical signal and transmits an abnormality notification including identification information of the optical combining/splitting unit to a monitoring apparatus in a case where there is an abnormality.

Abstract: In a time synchronization system, a network controller sets transmission distance information on a transmission distance through which an optical signal is transmitted between transmission and receiving servers via a queueless network to a receiving server, based on network topology information. The transmitting server transmits a transmitting side current time synchronized with a reference time to the receiving server 12 via the queueless network. The receiving server calculates a transmission delay time between the transmission and receiving servers by dividing the transmission distance, which is based on the set transmission distance information, by light speed in the queueless network. A receiving side current time is calculated by adding the transmission delay time to the transmitting side current time.

Abstract: The embodiments of the present disclosure relate to the technical field of content delivery network, and disclose a service processing method. The service processing method includes: receiving a customized service logic issued by a CDN user, receiving a user request corresponding to the customized service logic, loading the customized service logic and the user request to at least one execution process of a restricted namespace, where the restricted namespace is restricted to at least one of accessing CDN system files, calling key system interfaces, and using system resources, and processing and responding to the user request in the at least one execution process according to the customized service logic.

Abstract: A device may receive session data of a communication session between an artificial intelligence (AI) communication device and a first user device. The device may analyze the session data to determine one or more portions of the session data and may identify a portion, of the one or more portions, for processing based on one or more criteria associated with the portion. The portion may include a plurality of entries including communications from the first user device and from the AI communication device. The device may analyze the plurality of entries to identify an entry including information regarding an escalation and may analyze one or more additional entries, of the plurality of entries, to determine a category associated with a cause of the escalation. The device may cause the AI communication device to be configured to address the cause based on the one or more additional entries and the category.