Abstract: In some implementations, a wavelength division multiplexing (WDM) device includes a spacer; a first filter component; and a second filter component. The spacer is configured to propagate a light beam emitted from an input fiber of the WDM device within the spacer to the first filter component. The first filter component is configured to filter the light beam to create and direct a once-filtered light beam to the spacer. The spacer is configured to propagate the once-filtered light beam within the spacer to the second filter component. The second filter component is configured to filter the once-filtered light beam to create and direct a twice-filtered light beam to the spacer. The spacer is configured to propagate the twice-filtered light beam within the spacer to another component of the WDM device, such as another filter component, a mirror component, or an output fiber of the WDM device.

Abstract: A method of simultaneously modifying degradation rates of at least two compounds including a first compound having a first unmodified degradation rate constant k1 and a second compound having a second unmodified degradation rate k2 is provided. The method includes combining a first composition including the first compound with a second composition including the second compound, degrading the first compound and forming a first degradation product; and degrading the second compound and forming a second degradation product. The second degradation product modifies the first unmodified degradation rate constant k1 of the first compound to a first modified degradation rate k1? and the first degradation product modifies the second unmodified degradation rate k2 of the second compound to a second modified degradation rate k2?. Compositions resulting from the method are also provided.

Abstract: A combustion system may include a piston, a fuel injector, and a cylinder. At a main fuel injection stage, the fuel injector injects a main fuel into the cylinder in sequence to drive the piston to work. A method for controlling the combustion system includes controlling the fuel injector to execute a first-stage main fuel injection in a compression stroke, the first-stage main fuel injection includes at least one injection, and continues till a power stroke such that the cylinder pressure in the cylinder reaches a target pressure peak value; and before the cylinder pressure in the cylinder reaches a descending critical point, executing a second-stage main fuel injection, the second-stage main fuel injection includes at least one injection, and the fuel injected in the second-stage main fuel injection and the fuel injected in the first-stage main fuel injection are superimposed.

Abstract: A device for removing unwanted objects from cut tobacco in a cut tobacco production line is disclosed, which includes: a raw cut tobacco feeding and conveying unit (N1), a heavy unwanted object removal unit (N2), a cut tobacco dispersion and recovery unit (N3), a moderate unwanted object removal unit (N4), a cut tobacco humidification unit (N5) and a light unwanted object removal unit (N6). An unwanted object removal method using the cut tobacco unwanted object removal device is also disclosed. The device and method of the disclosure can effectively remove unwanted objects from cut tobacco.

Abstract: A PCIe/SAS connector structure includes a female part and a male part; the female part is engaged with the male part; wherein the female part has a female plastic member, a female cover, a female signal terminal part, a fix pin and a female signal and power terminal; wherein the male part has a male plastic member, a male cover, a male signal and power terminal, a male terminal, and a fix plate; wherein the female cover is in a full-wrap structure; wherein the female cover has a protruding elastic plate, respectively; wherein the male terminal is formed in an L shape; two male terminals are fixed as a set by a plastic; the male terminal is inserted to be positioned in the male cover; wherein the male cover is formed in an L shape in a full-wrap structure. Interference performance of signal terminal is improved.

Abstract: Techniques for virtual assistant execution of ambiguous commands is provided. A voice instruction from a user may be received at a virtual assistant. The voice instruction may request the virtual assistant to perform a command. The command that is most likely being requested by the voice instruction from the user is identified. An ordered set of actions to execute when performing the command may be retrieved. Each action of the ordered set of actions may indicate if the action is reversible. Each action of the ordered set of actions may be executed in order until a not reversible action is reached or no further actions are in the ordered set of actions.

Abstract: This application provides a folding assembly and a foldable electronic device. The folding assembly is applied to a foldable electronic device, and is configured to carry a flexible display screen. The folding assembly includes a shaft base, a first housing, and a second housing. The first housing and the second housing are respectively disposed on both sides of the shaft base. A door plate swing arm is located above the shaft base and is disposed on each of both sides of a center line of the shaft base, one end of each door plate swing arm is rotatably connected to the shaft base, and the other end of each door plate swing arm is rotatably connected to the first housing or the second housing.

Abstract: A modular connector with components that can be economically assembled to provide high signal integrity in a harsh environment. The connector includes an insulative housing bounding a mating interface, a conductive housing engaging a rear of the insulative housing and having tubes extending through the rear of the insulative housing to the mating interface, and lead assemblies disposed in respective tubes. The conductive housing has a channel extending from its top to its front. The insulative housing has a top extension extending beyond its rear, and a locking feature extending from its rear into the channel through the front of the conductive housing. A member is disposed in the channel and has opposite ends disposed in the top extension and locking feature of the insulative housing, respectively. Such a configuration prevents relative movement of components within the connector in a harsh environment and therefore provide more consistent signal paths.

Abstract: Provided by the present invention are a fusion protein binding to a CD47 protein and an application thereof, wherein the fusion protein is capable of binding to a CD47 protein by using a KD value of 1×10?8M or lower. The fusion protein may specifically block the interaction between a CD47 protein and SIRP? without causing a blood coagulation reaction, and may further inhibit the growth and/or proliferation of tumors or tumor cells.

Abstract: A PCIe SAS direct link connector includes a cable end and a back board; the cable end fixed on the back board and including a direct link female head, a high-speed line, and a 15pin plug terminal; the back board including a primary and a secondary cavity position; the direct link female head connected with the high-speed line; the 15pin plug terminal being an asymmetric bow shape and having a short and a long side, a first contact point disposed on the short side, and a second contact point disposed on the long side; the 15pin plug terminal connected with the high-speed line; when the 15pin plug terminal is combined with a server board end connector, the first contact point and the second contact point contact a terminal of the server board end connector, respectively, simplifying the connection structure and improving heat dissipation.

Abstract: A method for extracting a dam emergency event based on a dual attention mechanism is provided. The method includes: performing data preprocessing, building a dependency graph, building a dual attention network, and filling a document-level argument. The performing data preprocessing includes labeling a dam emergency corpus and encoding sentences. Building a dependency graph includes assisting a model to mine a syntactic relation based on a dependency. Building a dual attention network includes weighing and fusing an attention network based on a graph transformer network (GTN) and capturing key semantic information in the sentence. Filling a document-level argument includes filling a document-level argument by detecting a key sentence and ordering a semantic similarity. The method introduces a dependency and overcomes the long-range dependency problem based on the dual attention mechanism, thus achieving high identification accuracy and reducing a lot of labor costs.

Abstract: Disclosed is an intelligent recognition method for a time sequence image of a concrete dam defect. The method includes: extracting a feature sequence of the time sequence image containing the concrete dam defect; matching a located defect with a real defect by using an objective function; adding a loss term based on a tight sensing intersection-over-union to a loss function of a model so as to pay attention to integrity of a defect sequence and improve accuracy; and extracting a defect feature and recognizing a defect type after completing defect location. According to the present disclosure, the time sequence image of the concrete dam defect is detected effectively, so that a defect in a long image sequence can be located and the defect type can be recognized accurately.

Abstract: The present invention relates to the field of petroleum industry phase oilfield chemistry, and specifically relates to a bionic and dual-phobic drilling fluid. The drilling fluid contains a bionic wall-fixing agent, a bionic lubricant, a super dual-phobic agent, a scrap-carrying agent and a bionic shale inhibitor. The present invention uses the theory of bionics and the theory of a downhole rock surface being double phobic as a basis. By means of using the bionic wall-fixing agent, the bionic lubricant, the super dual-phobic agent, the scrap-carrying agent and the bionic shale inhibitor, which have special properties of imitating animals and plants in nature, and using a series of bionic treatment agents, a set of bionic and dual-phobic drilling fluid systems, which corresponds to an unconventional, complex oil and gas well, is formed.

Abstract: A data processing method includes: obtaining an advertisement state of each candidate advertisement corresponding to a current exposure request and an overall state of an advertising platform in response to the current exposure request; determining, by a classification network in a scoring model, probability of each candidate advertisement belonging to different reference advertisement types; determining, by a scoring network in the scoring model, a competition score of the candidate advertisement for the current exposure request according to the advertisement state corresponding to the candidate advertisement and the overall state based on the probability of the candidate advertisement belonging to different reference advertisement types, the scoring model including multiple scoring networks corresponding to different reference advertisement types; and determining a target advertisement exposed by the current exposure request according to the competition score of each candidate advertisement for the current

Abstract: Provided by the invention is an antibody or an antigen-binding fragment thereof, which binds to a CD38 protein at a KD value below 1×10?9M. The antibody or an antigen-binding fragment thereof has strong specific recognition and binding capabilities for CD38 protein, and may kill CD38+ cells by means of antibody-dependent cell-mediated cytotoxicity (ADCC), complement-dependent cytotoxicity (CDC) and/or apoptosis. Further provided by the present invention is an application of the antibody or antigen-binding fragment thereof in preventing and treating tumors.

Abstract: Provided by the invention is an antibody or an antigen-binding fragment thereof, which binds to a CD38 protein at a KD value below 1×10-9M. The antibody or an antigen-binding fragment thereof has strong specific recognition and binding capabilities for CD38 protein, and may kill CD38+ cells by means of antibody-dependent cell-mediated cytotoxicity (ADCC), complement-dependent cytotoxicity (CDC) and/or apoptosis. Further provided by the present invention is an application of the antibody or antigen-binding fragment thereof in preventing and treating tumors.

Abstract: A 4D quantitative and intelligent diagnosis method for spatio-temporal evolution of oil-gas reservoir damage types and extent includes: determining a characteristic parameter characterizing reservoir damage by each of a plurality of factors based on a spatio-temporal evolution simulation equation of reservoir damage by each of the plurality of factors; and determining an effective characteristic parameter characterizing the damage extent of the reservoir based on the characteristic parameter characterizing reservoir damage by each of the plurality of factors. The method quantitatively simulate the characteristic parameters of reservoir damage caused by the various factors and a total characteristic parameter of the reservoir damage.

Abstract: An apparatus in the field of optics technology, can include a reflector, a reflector substrate, and an extinction component. The reflector can be mounted on the reflector substrate. The extinction component can be arranged on a front surface of the reflector substrate. The reflector can be configured to reflect incident light signals. The extinction component can be configured to reduce the scattered light produced by the incident light signal on the reflector substrate. An optical scanning device (for example, lidar) having such features may greatly reduce the scattered light inside the lidar, reduce the detection blind area caused by the stray light, and greatly improve the receiving and detecting capabilities of the lidar.

Abstract: A method and apparatus for improving laser beam ranging capability of a LiDAR system and a storage medium are provided. The method includes: acquiring a first current signal output by a receiving sensor and a second current signal output by a reference sensor; determining a cancellation residue based on the first current signal and the second current signal; determining whether glare noise exists in echo lights based on the cancellation residue; and adjusting a bias voltage at a receiving end of the LiDAR system in a case that the glare noise exists in the echo lights.

Abstract: Embodiments of the present application provide a status detection method and apparatus for a filter. The filter filters a fluid in a sealed channel. At least a pressure sensor is further provided downstream of the filter in the sealed channel. The method includes: if a fluid flowing through a filter in a sealed channel is controlled to have a first flow rate, then acquiring a first pressure value measured by a pressure sensor; if the fluid flowing through the filter in the sealed channel is controlled to have a second flow rate, then acquiring a second pressure value measured by the pressure sensor; and determining a status of the filter according to a difference between the first pressure value and the second pressure value. Therefore, detection of the status of the filter is achieved, and an operator is prompted to maintain/replace the filter in time. In addition, an existing component can be used, so that applicability is high and detection costs are low.