Abstract: This application relates to the field of optical communication technologies. An optical engine assembly, an optical interconnection system, and a network device are provided. The optical engine assembly includes an optical engine, a coupling base, and a fiber array unit. A first guide portion is disposed on the coupling base, a second guide portion is disposed on the fiber array unit, and one of the first guide portion and the second guide portion is a guide rod. The other of the first guide portion and the second guide portion is a guide hole, and the guide rod is pluggably connected to the guide hole. The optical engine is configured to implement conversion between an optical signal and an electrical signal.

Abstract: Described herein are ultrasensitive gas sensors based on a vertical-channel organic semiconductor (OSC) diode, along with methods for making such devices, and uses thereof. The organic sensing layer comprises a fused thiophene-based organic polymer that connects top and bottom electrodes to deliver a vertical current flow. The nano-porous top-electrode structure enables the contact between ambient gas molecules and the vertical organic channel. The device has high sensitivity, is easy to process, and has a long shelf life.

Abstract: A speech synthesis system may be configured to be robust against variations and errors in spelling and/or punctuation in the input text. A text modifier may generate a parallel training dataset by modifying text from a training dataset to include variations in spelling, punctuation, and/or formatting. The speech synthesis system may generate synthesized speech based on the modified text in the parallel training dataset. A robustness tester may compare audio from the original training dataset with synthesized speech generated using the modified text. The results may be used to update parameters of one or more speech generation models of the speech synthesis system. The results may also be used to adjust the frequency of modifications generated by the text modifier to, for example, ensure that performance of the speech synthesis system on unmodified text is not adversely affected by the training using the modified text.

Abstract: An optical lens group for augmented reality (AR) near-eye display includes a primary lens and an auxiliary lens. An image presented by a microdisplay is enlarged by the optical lens group to form a virtual image which can be observed by an eye of a user. A shape of an outermost surface of the optical lens group can be changed to meet requirements of different diopters. The optical lens group has a primary lens mainly used for image information transmission and image enlargement and an auxiliary lens close to at least one surface of the primary lens. The auxiliary lens is arranged on a lower side or an outer side of the primary lens without propagating any image light signal from a micro image display.

Abstract: Provided are a handheld power tool and a chainsaw. After the battery pack is mounted on the handheld power tool, in the case where the handheld power tool does not satisfy the balance requirement, the electric motor does not start.

Abstract: A method includes receiving, via a computing device, a screenshot of a display provided by a graphical user interface of the computing device. The method also includes generating, by an image-structure transformer of a neural network, a representation by fusing a first embedding based on the screenshot and a second embedding based on a layout of virtual objects in the screenshot. The method additionally includes predicting, by the neural network and based on the generated representation, a modeling task output associated with the graphical user interface. The method further includes providing, by the computing device, the predicted modeling task output.

Abstract: A fan-in-fan-out (FIFO) optical device may include a multiple-core fiber (MCF) collimator including a plurality of fiber cores; a plurality of single-mode fiber (SMF) collimators, where each SMF collimator includes a single fiber core; and a device body engaging the MCF collimator and the plurality of SMF collimators. The device body may define an interior space. The MCF collimator and the plurality of SMF collimators may be arranged and/or configured to communicate within the interior space, a plurality of collimated beams. Each collimated beam may be communicated between one of the plurality of SMF collimators and a corresponding one of the plurality of cores in the MCF collimator.

Abstract: A method includes receiving a pilot signal or a measurement report from a user equipment (UE) or a base station (BS). The method also includes updating a CSI buffer with channel state information (CSI) obtained from the pilot signal or the measurement report, the CSI buffer configured to store previous uplink or downlink channel estimates. The method also includes providing at least a portion of the CSI buffer to a CSI predictor comprising an artificial intelligence (AI) model that utilizes one or more weight sharing mechanisms, the AI model comprising a sequence of layers. The method also includes predicting temporal CSI using the CSI predictor. Depending on the configured output, the method can also include and/or be used for denoising and frequency extrapolation.

Abstract: A secondary battery including a negative electrode plate. The negative electrode plate includes a negative electrode current collector and a negative electrode material layer disposed on at least one surface of the negative electrode current collector. The negative electrode material layer includes a negative electrode active material, a binder, and a conductive agent. The negative electrode active material includes a carbon material and silicon-carbon composite particles. Based on a mass of the negative electrode material layer, a mass percentage of silicon element is 4.4% to 10.5%, and a mass percentage of carbon element is 85% to 90%. A powder conductivity of the negative electrode material layer is 8 S/m to 15 S/m.

Abstract: The use of a mitoxantrone preparation in the preparation of a drug for diagnosing and treating breast cancer. Provided is the use of mitoxantrone and/or a pharmaceutically acceptable salt thereof in the preparation of a lymphatic tracer in a disease associated with breast resection. No local or systemic toxic and side effects are seen after local injection of the preparation, suggesting that the preparation has good tolerance, effectiveness and safety, which provides a new treatment idea for thoroughly curing breast cancer in a breast cancer patient.

Abstract: Laminates can comprise a substrate and a film. The film can comprise a film thickness from about 5 micrometers to about 400 micrometers and a tri-block copolymer comprising a first block positioned between two second blocks. The first block can be grafted with a first functional group. The first block can comprise a first glass transition temperature of about 0° C. or less. The two second blocks can each comprise a glass transition temperature of about 50° C. or more. A combined weight of the two second blocks can be from about 10 wt % to about 50 wt % of the tri-block copolymer. The film can comprise a refractive index from about 1.48 to about 1.55. Methods of forming a laminate can comprise disposing a film over a substrate. Methods can further comprise heating the film and the substrate to a first temperature and then a second temperature.

Abstract: An adsorbent is in a liquid-phase hydrogenation catalyst composition. A catalyst bed containing the liquid-phase hydrogenation catalyst composition may be applicable in adsorption technology or oil liquid-phase hydrogenation technology. The adsorbent contains a porous material and a hydrogenation active metal supported on the porous material. The adsorbent has an average pore diameter of 2-15 nm, a specific surface area of 200-500 m2/g, and the hydrogenation active metal is present in an amount, calculated as metal oxide, of 2.5 wt % or less, based on the total weight of the adsorbent. The adsorbent has a high hydrogen sulfide adsorption efficiency for a long period of time, and can effectively prolong the protection period for the hydrodesulfurization catalyst.

Abstract: A communication method adopted by a Bluetooth system is provided. The Bluetooth system includes a master device and a slave device. The communication method includes the master device and the slave device establishing a connection, the master device sending a power-saving command to the slave device, in response to the power-saving command, the slave device sending a power-saving acknowledgement command to the master device, then terminating the connection and entering a slave power-saving mode, and in response to the power-saving acknowledgement command, the master device entering a master power-saving mode.

Abstract: Provided is a speaker, including: a diaphragm structure including first and second diaphragms, the first diaphragm is configured to push air to vibrate to generate initial sound wave, and a signal of which is modulated based on a signal within an audible sound frequency band; and a cover plate structure enclosing with the diaphragm structure to form sound-generating cavity, the cover plate structure has a sound outlet hole connecting the sound-generating cavity with outside, the initial sound wave in the sound-generating cavity is transmitted to the outside through the at least one sound outlet hole to form a sound signal, the second diaphragm and the cover plate structure generate an acoustic environmental impedance used to modulate the initial sound wave to change sound pressure of the sound signal. The speaker can modulate and output a sound signal covering the audible sound frequency band based on the acoustic environmental impedance.

Abstract: A communication method for a communication system includes a first device sending a device power-on packet to the second device, in response to the device power-on packet, resetting a second device, after the second device is reset, the second device sending a first handshake packet to the first device, and in response to the first handshake packet, the first device returning a second handshake packet to the second device.

Abstract: Current treatments for corneal disorders, also called keratopathies, depend on the stage of the keratopathy. For mild keratopathies, supportive treatments such as saline eyedrops may be sufficient to ameliorate symptoms. The present disclosure provides methods of treating corneal disorders with modulators of the WNT signaling pathway. More particularly, provided are treatments for cornea epithelial and/or endothelial injuries, defects, deficiencies, and dystrophies. Further provided are methods of dosing and pharmaceutical compositions for the treatment of corneal disorders.

Abstract: Provided is a fully decoupled MEMS gyroscope, including a base, a sensing unit elastically connected to the base, and a driving unit coupled with the sensing unit and driving the sensing unit to move. The base includes a coupling anchor point located at a center of a rectangle and a coupling structure elastically connected to the coupling anchor point. The driving unit includes four driving members located at inner positions of four corners of the rectangle. The sensing unit includes two X mass blocks symmetrically arranged in two of the avoiding intervals, two Y mass blocks symmetrically arranged in the other two of the avoiding intervals, four Z mass blocks elastically connected to the adjacent driving members and located at the four corners of the rectangle, and four Z detection decoupling members elastically connected to the adjacent Z mass blocks and elastically connected to each other around the rectangle.

Abstract: The present invention provides a multimass MEMS gyroscope featuring an orthogonal arrangement, which comprises an anchor point unit, a sensing unit and a driving unit; the anchor point unit comprises a central anchor point subunit located at the center of a rectangle and four corner anchor points located at the four corners of the rectangle respectively; the sensing unit comprises four detection mass blocks each of which has a frame structure and is elastically connected between the central anchor point subunit and the corresponding corner anchor point, receding spaces being formed between the detection mass blocks, and four detection decoupling parts; and the driving unit comprises four driving mass blocks, and driving decoupling parts. The gyroscope can improve the arrangement area of transducers and reduce the mass of the detection mass blocks to improve the Coriolis gain, thereby improving the mechanical sensitivity of the gyroscope.

Abstract: A handheld cutting tool includes a housing, a motor, a saw chain, a guide plate, and a blade sheath, where the motor is supported by the housing, the saw chain is driven by the motor to perform a cutting function, an end of the guide plate is supported by the housing and the guide plate is used for supporting and guiding the saw chain, and the blade sheath is formed with or connected to the first limiting portion, the housing or the guide plate is formed with a second limiting portion, and the first limiting portion and the second limiting portion are adaptable to each other so that the blade sheath is not separated from the handheld cutting tool at least under the action of gravity.