Abstract: Disclosed herein are apparatus and methods for acoustic imaging. The disclosed embodiments include an optical sensor. The optical sensor may include an acoustic stack. The acoustic stack may include a backing layer that supports an optical layer. The optical layer may include an optical waveguide and a tuning device configured to tune an optical propagation property of the optical waveguide. The optical waveguide may include a core region and one or more cladding regions. The one or more cladding regions may have optical refractive index less than that of the core region.

Abstract: A displacement sensor including an optical whispering gallery mode (WGM) microresonator and a package encasing at least a portion of the WGM microresonator, the package comprising polydimethylsiloxane (PDMS). The WGM microresonator can be configured as a sensor and used in a displacement detection system that can detect displacement with high quality. Artificial intelligence can be implemented in the displacement detection system for improved sensing of different variables and/or pinpointing the location of perturbations.

Abstract: An acousto-optic imaging system may include at least one transducer that transmits an ultrasound signal having a fundamental frequency f. The acousto-optic imaging system includes at least one optical sensor that may produce one or more optical responses upon receiving harmonic-related ultrasound echoes corresponding to the transmitted ultrasound signal. For example, the one or more optical sensors may have a bandwidth ranging from at least f/M to Nf, where M and N are integers greater than 1.

Abstract: Described and provided herein are novel antibodies for Claudin 18.2. Also described and provided are pharmaceutical compositions of the antibodies and methods of use for the treatment of cancer.

Abstract: A compact mixed ultrasound transducer including a transducer case, a source array configured comprising at least one acoustic energy generating transducer and configured to transmit acoustic waves; and an optical receiver array including at least one optical sensor and configured to detect acoustic echoes associated with the acoustic waves is provided. The mixed ultrasound transducer may have a compact geometry facilitated by various features.

Abstract: An optical module, comprising a circuit board (110), a photoelectric assembly (130) electrically connected to the circuit board (110), an optical interface (120), and optical fiber (140) in optical communication with the photoelectric assembly (130) and the optical interface (120), and a fiber coiling member (150). The fiber coiling member (150) comprises a fiber coiling body (151) enclosing an accommodating cavity (1510), and the fiber coiling body (151) is provided with a bottom wall (1512) and a fiber coiling wall (1511) extending from the bottom wall (1512) in the thickness direction of the circuit board (110). The fiber coiling wall (1511) defines a peripheral boundary of the accommodating cavity (1510). The fiber coiling member (150) further comprises stop walls (152) arranged opposite to the bottom wall (1512) in the thickness direction of the circuit board (110), and protruding from the fiber coiling wall (1511) to the interior of the accommodating cavity (1510).

Abstract: A cerium-zirconium-aluminum-based composite material, a cGPF catalyst and a preparation method thereof are provided. The cerium-zirconium-aluminum-based composite material adopts a stepwise precipitation method, firstly preparing an aluminum-based pre-treated material, then coprecipitating the aluminum-based pre-treated material with zirconium and cerium sol, and finally roasting at high temperature to obtain the cerium-zirconium-aluminum-based composite material. The cerium-zirconium-aluminum-based composite material has better compactness and higher density, and when it is used in cGPF catalyst, it occupies a smaller volume of pores on the catalyst carrier, such that cGPF catalyst has lower back pressure and better ash accumulation resistance, which is beneficial to large-scale application of cGPF catalyst.

Abstract: The invention provides a fracture opening simulation device for hard brittle mudstone and shale with organic matter, it includes a simulated support, the lower part of the simulated support is connected with a storage bucket bottom block plate through a screw, the middle of the simulated support is provided with a support socket with a circular structure, the upper surface of the storage bucket bottom block plate is provided with a circular convex structure of a block plate boss, the block plate boss is closely inserted in the support socket, the upper surface of the simulated support is fixed connected with a core column storage barrel.

Abstract: A method of transmitting at least one optical signal through an add-drop filter includes directing the at least one optical signal into a first tapered optical fiber of the add-drop filter. The add-drop filter includes an active resonator side-coupled between the first tapered optical fiber and a second tapered optical fiber, and the active resonator is doped with at least one rare earth ion. A tuned optical gain is produced by delivering a tuned amount of pump laser energy to the at least one rare earth ion at a sub-lasing level, the tuned optical gain configured to compensate an intrinsic loss of the active resonator.

Abstract: Techniques are described herein that are capable of providing a modularized acoustic probe that includes multiple acoustic transducers that have discrete substrates. A first acoustic transducer is configured to generate an acoustic signal and to transmit the acoustic signal toward an object. The second acoustic transducer is configured to detect a reflected acoustic signal, which results from the acoustic signal reflecting from the object, and to convert the reflected acoustic signal to an electrical signal. The first and second acoustic transducers have respective discrete substrates. In an example, the second acoustic transducer may not be configured to generate acoustic signals. In another example, the first and second acoustic transducers may be in respective first and second rows of a two-row transducer array. In accordance with this example, the first and second acoustic transducers may be designed to have an acoustic parameter having respective first and second parameter values.

Abstract: The present disclosure provides an automatic driving test method. The method includes: acquiring test configuration information input by a user; generating test cases according to the test configuration information, and allocating the test cases to corresponding test types, wherein test types comprise a virtual simulation test, a whole vehicle in-loop test, a closed site test, and an open road test; and under each test type, testing a to be tested vehicle based on the corresponding test cases to obtain test results corresponding to each of the test type, and the test results comprise a simulation test result, a whole vehicle in-loop test result, a closed road test result, and an open road test result. Thus obtaining rich comprehensive test evaluation results makes the test results for autonomous vehicles more accurate.

Abstract: A displacement sensor including an optical whispering gallery mode (WGM) microresonator and a package encasing at least a portion of the WGM microresonator, the package comprising polydimethylsiloxane (PDMS). The WGM microresonator can be configured as a sensor and used in a displacement detection system that can detect displacement with high quality. Artificial intelligence can be implemented in the displacement detection system for improved sensing of different variables and/or pinpointing the location of perturbations.

Abstract: The optical fiber with an acoustically sensitive fiber Bragg grating includes an optical fiber core with a pair of fiber Bragg gratings formed therein, such that each of the fiber Bragg gratings is spaced apart from the other. A cladding material is disposed on and surrounds at least a portion of the optical fiber core. The cladding material has at least one material property associated therewith, where the at least one material property may be a smaller Young's modulus than a Young's modulus of the optical fiber core, a larger photo-elastic coefficient than a photo-elastic coefficient of the optical fiber core, or combinations thereof. An ultrasound sensor includes at least one of the optical fibers embedded in a polymer layer, along with a backing layer and an acoustic matching layer.

Abstract: Optical fiber based acoustic sensors are provided herein. The optical fiber based acoustic sensors described herein include acoustically responsive optical structures configured to detect and receive acoustic signals, including ultrasound signals, and provide associated optical signals to a system for processing and interpretation to implement tracking, location, and imaging capabilities. Optical fiber based sensors provided herein may be disposed at ends of or along the length of optic fibers. Optical fiber based sensors may be included within various devices, including, for example, medical devices.

Abstract: Mixed sensor array devices are provided herein. Mixed sensor arrays as described herein include acoustic energy generating elements and optical fiber based acoustic sensors. Optical fiber based sensors may optical structures responsive to physical parameters including acoustic signals, pressure, and temperature, and are configured to detect and receive acoustic signals and other physical parameters and provide associated optical signals to a system for processing and interpretation to implement tracking, location, imaging, and other sensing capabilities. Optical fiber based sensors provided herein may be disposed at ends of or along the length of optic fibers. Optical fiber based sensors may be included within various devices, including, for example, medical devices.

Abstract: An example embodiment may involve receiving, via a user interface, a plurality of textual user feedback regarding operation of a software application; aggregating, via a trained machine-learning model, the plurality of textual user feedback into a discrete number of observations regarding the operation of the software application, wherein the observations are in textual form; determining a subset of the observations that satisfy a relevance criterion; and providing the subset of the observations for display.

Abstract: The present disclosure provides a test scenario generation method, system and device for risky lane-changing test of autonomous driving. The method includes: obtaining a real risky lane change trajectory set; generating an adversarial network TimeGAN, and obtaining a constructed risky lane change trajectory generation model Traj-TimeGAN; inputting the data in the real risky lane change trajectory set into Traj-TimeGAN, and outputting a lane change trajectory of a lane change background vehicle with human driving characteristics; analyzing safety constraint conditions of an autonomous driving vehicle and constructing a critical safety distance model for the vehicle; constructing a critical lane change scenario test case, and generating critical lane change test scenarios corresponding to all risky lane change trajectories through scenario generalization. The present disclosure can generate multi-directional lane change entry angles to meet the needs for high-risk testing of autonomous driving.

Abstract: Systems and methods for detecting multiple physical features is described herein. The method may include receiving a sensor signal from a single optical sensor proximate to a measurement region, determining a plurality of sensor responses from the sensor signal, and generating a plurality of measurement signals from the plurality of sensor responses. Each of the measurement signals may correspond to a different respective physical signal of the measurement region.

Abstract: An apparatus for imaging a target and a process of making the apparatus are provided. The apparatus includes a housing and a distal portion. The distal portion includes an acoustic subarray on a first substrate configured to transmit acoustic signals toward the target. The distal portion includes an optical subarray on a second substrate, configured to detect acoustic signals from the target. The distal portion includes an input/output (I/O) region including one or more optical I/O channels. The one or more optical I/O channels is configured to bend optical signals between the optical subarray and the one or more optical I/O channels.

Abstract: A power supply circuit is configured to supply power to a display panel. The power supply circuit includes a receiver circuit and a transmitter circuit. The receiver circuit is configured to couple the display panel and output a hot plugging signal. The transmitter circuit is configured to receive the hot plugging signal and couple a power circuit. The transmitter circuit is further configured to communicate the receiver circuit to generate an enable signal. The hot plugging signal and the enable signal are configured to control whether a first voltage signal from the power circuit is transmitted to the receiver circuit and the display panel via the transmitter circuit.