Abstract: An on-chip pulse synthesizer including an integrated photonic chip that temporally and spectrally shapes pulses of light using primarily quadratic optical nonlinearities. Through this synthesis, the light pulses undergo temporal shortening or reshaping, spectral broadening, wavelength conversion, or a combination thereof. A key aspect of this synthesis is the mode engineering of the waveguides, which includes converting the pump source mode to the relevant mode in the nonlinear optical region and tailoring the waveguide geometry and material stack to enable dispersion-engineering as well as engineering of the phase matching for various nonlinear processes.

Abstract: Systems and methods for creating and utilizing digital twins for three-dimensional building visualization and simulations. A method includes parsing tabular data associated with a building. Units represented in the tabular data may be assigned unit class data structures, where each unit class data structure stores data for its respective assigned unit. Data for each unit identified via the parsing may be stored in the respective unit class data structure for that unit. A digital twin is linked to the tabular data with respect to the unit class data structures. Building data for the building is analyzed to identify polylines in the building. Each polyline is extruded to create a 3D model of each unit. In the 3D model, each unit is converted into a mesh. A digital twin of the building is created and linked to at least a portion of the tabular data.

Abstract: Provided is a system for detecting a video semantic interval. The system includes a communication module configured to receive a video and a query sentence, memory in which a program for outputting a semantic interval proposal from the video and the query sentence is stored, and a processor configured to execute the program stored in the memory. By executing the program, the processor outputs a semantic interval proposal having start timing and end timing, which is matched with the query sentence within the video, over a pre-trained video semantic interval detection network based on boundary refinements as the results of the detection of the semantic interval proposal, and outputs a semantic interval proposal having a variable boundary through the refinements of a predetermined semantic interval proposal.

Abstract: Disclosed are a lock catch and a vehicle. The lock catch includes: a base seat, a buckle, a buckle return spring, a transmission member and a button. The base seat is provided with an inserting groove extending in a first direction; the buckle is corresponding to the inserting groove, the buckle is rotatably connected to the base seat to have a first state and a second state, the buckle is provided with a buckle portion configured to be buckled with the buckle hole, and the buckle portion is further configured to be abutted against the locking tongue; the buckle return spring is provided between the buckle and the base seat; the transmission member is connected to the buckle; and the button is provided with two abutting surfaces respectively towards the two transmission portions.

Abstract: A 2D area array camera-line laser 3D sensor joint calibration method, comprising: establishing a 3D coordinate system of the line laser 3D sensor, and obtaining 3D coordinates of a light bar point on the 2D area array camera; placing a target at a common measurement position, and allowing the 2D area array camera to acquire images of intersection lines of three sets of laser plane and cylinders and the image coordinates of three sets of laser light bars respectively; calculating 3D coordinates of the light bar point in a 2D area array camera coordinate system, and calculating three ellipse center position coordinates; directly acquiring 3D coordinates of three sets of laser light bars in the 3D sensor coordinate system from the line laser 3D sensor, and calculating three ellipse center position coordinates; and calculating a conversion distance between two coordinate systems.

Abstract: The invention describes a tsunami warning system utilizing properties of light in optical fibers within submarine telecommunication cables. Enhanced by microwave frequency modulation and High-Loss Loop Back (HLLB) techniques, this system measures photoelastic changes for more stable, long-period tsunami wave detection.

Abstract: The present disclosure relates to novel cinnamamide derivatives and use thereof in preventing or treating cancer.

Abstract: Described herein are medical devices and medical implements with high lubricity to flesh (or biological fluid) and/or inhibited nucleation on its surface. The device has a surface comprising an impregnating liquid and a plurality of micro-scale and/or nano-scale solid features spaced sufficiently close to stably contain the impregnating liquid therebetween. The impregnating liquid fills spaces between said solid features, the surface stably contains the impregnating liquid between the solid features, and the impregnating liquid is substantially held in place between the plurality of solid features regardless of orientation of the surface.

Abstract: Provided is a wireless communication terminal. The wireless communication terminal includes a transceiver; and a processor. The processor is configured to receive a signaling field of a first PLCP Protocol Data Unit (PPDU) through the transceiver, and access a channel based on information identifying a Basic Service Set (BSS) indicated by the signaling field.

Abstract: A semiconductor device and a method of manufacturing the same, and an electronic apparatus including the semiconductor device are provided. The semiconductor device includes: an active region, on a substrate, extending substantially in a vertical direction; a gate stack formed around at least a part of a periphery of the active region, the active region including a channel region opposite to the gate stack, and a first source/drain region and a second source/drain region, and the gate stack including a gate dielectric layer, a work function tuning layer and a gate electrode material layer, and the work function tuning layer being between the gate electrode material layer and the channel region; and a first low-k dielectric layer extending from a first end of the work function tuning layer to surround a first corner of an end portion, on a side facing the channel region, of the gate electrode material layer.

Abstract: Provided is a recognition method of 3D vein pattern including the following steps. A plurality of first light beams are emitted by a recognition device to a wrist of a user. A plurality of first reflected light beams from the wrist are received by the recognition device to form a first 3D vein pattern of the wrist. Differences between the first 3D vein pattern and a wrist vein pattern of a database are compared to identify an identity or a gesture of the user. A recognition device of 3D vein pattern is also provided.

Abstract: A display panel, a method for driving a display panel, and a display apparatus are provided. The display panel includes first sub-pixels. At least one of the first sub-pixels includes a first pixel circuit and a first light-emitting element. The first pixel circuit includes a display controller and a detector that are electrically connected to a first electrode of the first light-emitting element, respectively. An operating process of the first pixel circuit includes a detection stage. In the detection stage, the detector is turned on to detect a voltage of the first electrode of the first light-emitting element.

Abstract: The present invention discloses a watermark embedding method based on service invocation data, comprising obtaining service invocation data, and preprocessing the invocation data, then, obtaining the key data through screening the preprocessed invocation data based on relevant weights, then, adding timestamps to the key data to obtain enhanced data, after that, selecting the contribution degree of the enhanced data to obtain high-quality data, and encoding the high-quality data to generate encoded data, then, constructing a data watermark embedding model by employing the encoded data, and inputting the service invocation data to be embedded into the data watermark embedding model, and thus the embedding results can be output. This method can not only improve the accuracy of watermark embedding for service invocation data, but also provides good interpretability, making it directly applicable to watermark embedding systems.

Abstract: In an approach to reduce nitrous oxide emissions using predictive urea dosing control, a route is determined. A set of target coverage fractions of ammonia is determined over a set of steps for the route, where the coverage fraction of ammonia is a ratio of stored ammonia to a maximum storage capacity of ammonia in a selective catalytic reduction (SCR) device. An actual coverage fraction of ammonia is determined for each step of the route. The actual coverage fraction of ammonia is compared to the target coverage fraction of ammonia for each step. The urea injection rate is adjusted based on a cost function.

Abstract: The present invention relates to a radiopharmaceutical distribution image generation system and method using deep learning and, more specifically, to a radiopharmaceutical distribution image generation system and method using deep learning, wherein dynamic medical images collected from multiple patients and a time-radiation dose distribution curve for each organ can be learnt through a deep learning network and a spatial distribution image of a radiopharmaceutical can be generated from a static medical image acquired from a specific patient. According to the present invention, even when a medical image is acquired only for a specific time after a radiopharmaceutical is injected into a patient, a spatial distribution image of the radiopharmaceutical can be acquired across the entire time by using the deep learning network, and quantitative analysis of the radiopharmaceutical can be performed by calculating a time-radiation dose distribution curve on the basis thereof.

Abstract: The present invention discloses a flexible sensor detection system for medical care and health, including: an information collection module, which uses a wearable device as a carrier, where flexible sensors are respectively arranged on the wearable device; an information transmission module, configured to wirelessly transmit collected information to an information processing and feedback module; and the information processing and feedback module, configured to perform grading treatment on received data information and feed back a health condition corresponding to the data information to the information transmission module, where the information transmission module compares feedback health condition data with a preset health threshold to determine whether to give an alarm. A heart rate ECG band, a breathing band, a shell temperature band, a blood flow rate band, a blood glucose band, a blood oxygen band, and a deep temperature band of the present invention are provided with the built-in flexible sensors.

Abstract: A superconducting single-photon detection system includes: a plurality of optical transmission paths through each of which a photon emitted from a light source is transmitted; a plurality of superconducting single-photon detectors (hereinafter referred to as “SSPDs”) that are independent of each other and in one-to-one correspondence with the optical transmission paths; and a superconducting logic circuit that multiplexes first pulse signals output from the SSPDs. A photon entry time at which the photon enters each of the SSPDs through a corresponding one of the optical transmission paths is different for each of the optical transmission paths, and a difference in the photon entry time between the optical transmission paths is greater than a pulse width of a corresponding one of second pulse signals output from the superconducting logic circuit.

Abstract: A high resolution fluorescence imaging device includes a light guide plate having a fluid channel which allows a solution containing a fluorescent sample to pass; a light source disposed on a side of the light guide plate to irradiate light inward the light guide plate; an image sensor disposed under the light guide plate; and a thin film interposed between the light guide plate and the image sensor, wherein the thin film has a first surface having a plurality of pillars and a second surface, the pillars separate the light guide plate and the image sensor apart from each other, and the second surface is bonded to the light guide plate. According to an embodiment, since the light guide plate acts in place of a filter element, it is possible to manufacture in ultrasmall size and achieve multiple fluorescence imaging without replacing a filter.

Abstract: A beam steering system includes a differentially segmented aperture antenna comprising a plurality of pyramid structures arranged in an array, and a plurality of elements formed in an array, each element being defined between two adjacent pyramid structures; phase conversion circuitry to determine a phase conversion for each element, the phase conversion for each element being based on an angle of a target with respect to the element, and an operating frequency of the DSA antenna; transmit phase shift circuitry to apply a phase difference for each element based on the phase conversion, the phase difference steering the signal to the target so that the signal interferes constructively; and receive phase shift circuitry to apply a phase difference for each element based on the phase conversion, causing the signal to interfere constructively for a signal of interest, and suppresses an unwanted signal by steering the signal into a null.

Abstract: Disclosed herein include systems, devices, and methods for generating training data for spot detection using generative models with expectation maximization. The training data can be used to train a machine learning model for spot detection.