Abstract: A vehicle FMCW Doppler radar system (3) and related method using transmitter arrangement (4), a receiver arrangement (7) and at least one control unit (15). The radar system (3) is arranged to transmit signals (11), to receive reflected signals (12), and to obtain a plurality of measure results from the received reflected signals (12) along a main field of view (10) during at least two radar cycles where each radar cycle including a plurality of FMCW ramps. For each radar cycle, the control unit (15) is arranged to form a spectrum density map (30) from measuring points (14) along the main field of view (10), where each measure result results in a measuring point (14). The control unit (15) is arranged to combine at least two spectrum density maps to form a combined spectrum density map.

Abstract: Embodiments of systems and methods for measuring a surface topography of a semiconductor chip are disclosed. In an example, a method for measuring a surface topography of a semiconductor chip is disclosed. A plurality of interference signals each corresponding to a respective one of a plurality of positions on a surface of the semiconductor chip are received by at least one processor. The plurality of interference signals are transformed by the at least one processor into a plurality of spectrum signals each corresponding to the respective one of the positions on the surface of the semiconductor chip. The spectrum signals are classified by the at least one processor into a plurality of categories using a model. Each of the categories corresponds to a region having a same material on the surface of the semiconductor chip.

Abstract: Disclosed are a high performance thermoelectric device and a method of manufacturing the same at ultra-high speed. The high performance thermoelectric device includes segmented structures which may provide an optimal match between the thermoelectric materials and the environmental temperature difference; blocking layers and stress-buffering layers which can reduce interface element migration and longitudinal contact thermal expansion stress and increase bonding strength; phonon scattering layers and negative thermal expansion buffering layers inserted and fixing the thermoelectric leg, thereby increasing internal thermal resistance and improving transverse thermo-match for the high performance thermoelectric device; an inner package and an outer package, thus avoiding sublimation and oxidation of the thermoelectric materials and providing the thermoelectric device with enhanced impact resistance from outside.

Abstract: A method for establishing a data connection between a mobile terminal and a server includes sending a request for data connection to the server, generating a random password, transmitting the random password to the server for storing in the server, establishing the data connection between the mobile terminal and the server, and encrypting data to be transmitted through the communication connection using the random password.

Abstract: This disclosure is directed to a fusion protein composition comprising an alpha-1-antitrypsin or ?1-antitrypsin (also known as A1AT, A1A, or AAT) polypeptide (AAT), a modified AAT (mAAT) or a functional variant thereof and a bioactive polypeptide. This disclosure is particularly directed to a pharmaceutical composition comprising the fusion protein for treating a disease, such as a cancer or an autoimmune disease. The bioactive polypeptide can be a peptide hormone, interferon, or cytokine, such as interleukin-2 (IL-2), a modified IL-2 (mIL-2), IL-15, G-CSF, GM-CSF, IFN-?2, IFN-?1, GLP-1, FGF21, sdAb, a fragment thereof, a modified polypeptide thereof, or a combination thereof. One advantage of the fusion protein is to enhance the activity, stability, bioavailability or a combination thereof, of the bioactive polypeptide.

Abstract: The present invention provides a liquid antioxidant composition used for raw rubbers comprising 5% to 30% by weight of at least one aromatic amine-based antioxidant agent, 20% to 70% by weight of at least one hindered phenol-based antioxidant agent, 0% to 40% by weight of at least one phosphite-based antioxidant agent; and 20% to 40% by weight of at least one solvent having boiling point higher than 185° C. and freezing point lower than ?10° C. under 101.325 KPa, the weight percentage of component a), b), c) or d) is based on the total weight of antioxidant composition, wherein the mixture of component a), b) and c) is liquid at 25° C. under 101.325 KPa. The weight percentage is based on the total weight of antioxidant composition. The present invention further provides an application of said liquid antioxidant composition in raw rubbers such as natural rubber and raw rubbers synthesized via solution polymerization.

Abstract: A left atrial appendage (LAA) closure (1) and a system (6) for delivering the LAA closure are disclosed. The LAA closure (1) includes supporting struts (11), wherein the supporting struts (11) are distributed peripherally around a first hub (10) and extend outward, the supporting strut (11) bifurcates at a first position (110) into a left branch (111) and a right branch (112). The left branch (111) of each supporting strut (11) and the right branch (112) of an adjacent supporting strut join each other at a second position (113) and extend distally to form a distal end. The LAA closure further includes a supporting rod (12) between adjacent supporting struts (11) which ensures stability, absence of irregular deformation and lateral slippage, of the LAA closure (1). With the supporting rods (12) between the adjacent supporting struts (11), the LAA closure (1) forms a dense mesh which imparts high overall strength of the LAA closure (1).

Abstract: A method and a system for creating a workload distribution plan on a storage system. The method includes, for each storage location, initializing components for at least one data type, such that the components establish a baseline distribution percentage. The method also includes writing data packages onto the storage system over a predetermined time period. The method also includes, for each data type on each storage location, creating a workload distribution plan, where the workload distribution plan distributes a workload of the storage system to the storage location. The method also includes implementing the workload distribution plan on the storage system.

Abstract: The present application discloses a speech recognition method, apparatus, device and readable storage medium, and relates to the technical field of artificial intelligence. A specific implementation includes: an electronic device recognizes a speech signal to obtain a first text; if a first pinyin sequence corresponding to the first text exists in the database, the electronic device uses a correct text corresponding to the first pinyin sequence as the speech recognition result; otherwise, the electronic device performs a fuzzy matching on the first pinyin sequence to obtain multiple second pinyin sequences and second texts corresponding to the second pinyin sequences, and selects the speech recognition result from the multiple second texts.

Abstract: A power tool includes a tool accessory, a motor, a control module, a power supply, and an operating switch. The operating switch includes a trigger mechanism, a current switch coupled to the trigger mechanism to be actuated by the trigger mechanism for connecting and disconnecting the electrical connection between the power supply module and the motor, and a signal switch coupled to the trigger mechanism to be actuated by the trigger mechanism at least configured to output a control signal to the control module to control the start of the motor.

Abstract: A left atrial appendage (LAA) closure (1) and a system (6) for delivering the LAA closure are disclosed. The LAA closure (1) includes supporting struts (11), wherein the supporting struts (11) are distributed peripherally around a first hub (10) and extend outward, the supporting strut (11) bifurcates at a first position (110) into a left branch (111) and a right branch (112). The left branch (111) of each supporting strut (11) and the right branch (112) of an adjacent supporting strut join each other at a second position (113) and extend distally to form a distal end. The LAA closure further includes a supporting rod (12) between adjacent supporting struts (11) which ensures stability, absence of irregular deformation and lateral slippage, of the LAA closure (1). With the supporting rods (12) between the adjacent supporting struts (11), the LAA closure (1) forms a dense mesh which imparts high overall strength of the LAA closure (1).

Abstract: Embodiments of systems and methods for measuring a geometric attribute of a hole structure in a semiconductor chip are disclosed. In an example, an optical spectrum signal corresponding to the hole structure in the semiconductor chip is received. The optical spectrum signal is characterized by one or more optical features. The geometric attribute of the hole structure is determined based, at least in part, on the optical features using a model. The model is trained from a plurality of training samples each including a pair of an optical spectrum signal and a labeled reference signal both corresponding to a same hole structure.

Abstract: A method for determining the temperature-induced sag variation of the main cable and the tower-top horizontal displacement of suspension bridges takes the sag variation and the span variation of each span of the main cable as the unknown quantities. By using the horizontal tension equilibrium at the tower top, the geometric relationship between the shape and the length of the main cable, and the compatibility condition to be satisfied by the sum of spans of each span of the main cable, a linear system of equations is constructed. The linear system of equations is solved to obtain the temperature-induced sag variation of the main cable and the tower-top horizontal displacement of the suspension bridge. This method can be extended to the temperature deformation analysis of the other cable systems with any number of spans such as transmission lines, ropeways, and the like.

Abstract: Systems and techniques that facilitate universal and efficient privacy-preserving vertical federated learning are provided. In various embodiments, a key distribution component can distribute respective feature-dimension public keys and respective sample-dimension public keys to respective participants in a vertical federated learning framework governed by a coordinator, wherein the respective participants can send to the coordinator respective local model updates encrypted by the respective feature-dimension public keys and respective local datasets encrypted by the respective sample-dimension public keys. In various embodiments, an inference prevention component can verify a participant-related weight vector generated by the coordinator, based on which the key distribution component can distribute to the coordinator a functional feature-dimension secret key that can aggregate the encrypted respective local model updates into a sample-related weight vector.

Abstract: Techniques for federated learning are provided. A plurality of public encryption keys are distributed to a plurality of participants in a federated learning system, and a first plurality of responses is received from the plurality of participants, where each respective response of the first plurality of responses was generated based on training data local to a respective participant of the plurality of participants and is encrypted using a respective public encryption key of the plurality of public encryption keys. A first aggregation vector is generated based on the first plurality of responses, and a first private encryption key is retrieved using the first aggregation vector. An aggregated model is then generated based on the first private encryption key and the first plurality of responses.

Abstract: The present application discloses a diffuser vane, a compressor structure and a compressor. The diffuser vane includes a vane body, wherein a cavity is formed inside the vane body, and a gas supplement hole is formed on the vane body.

Abstract: An integrated structure of a return device and a pressure diffuser, and a centrifugal compressor are provided. The structure includes a pressure diffuser portion and a return device portion integrally molded with the pressure diffuser portion. The pressure diffuser portion is configured to form a pressure diffusion flow channel. The return device portion has a return channel. The return channel is in communication with the pressure diffusion flow channel, and is configured to guide gas from the pressure diffusion flow channel. The structure of the present invention eliminates a need of independently installing a return device and a pressure diffuser, and eliminates connection seams caused by assembly and misalignment caused by accumulated errors. Therefore, gas can smoothly flow through the pressure diffusion flow channel into the return channel, such that a gas flow is well guided, and the gas flow uniformity is better.

Abstract: A system and method for capturing and analyzing a set of cells, comprising: an array including a set of parallel pores, each pore including a chamber including a chamber inlet and a chamber outlet, and configured to hold a single cell, and a pore channel fluidly connected to the chamber outlet; an inlet channel fluidly connected to each chamber inlet of the set of parallel pores; an outlet channel fluidly connected to each pore channel of the set of parallel pores; a set of electrophoresis channels fluidly coupled to the outlet channel, configured to receive a sieving matrix for electrophoretic separation; and a set of electrodes including a first electrode and a second electrode, wherein the set of electrodes is configured to provide an electric field that facilitates electrophoretic analysis of the set of cells.

Abstract: The invention provides methods and compositions generally useful to the use of polymerase chain reaction (PCR) amplification of trace DNA sequences from formalin-fixed paraffin-embedded (FFPE) biopsy samples and specifically relevant to the identification of multi-drug resistant H. pylori in such biopsy samples.

Abstract: Disclosed are a left atrial appendage occlusion device (100, 300) and a left atrial appendage occlusion system. A connecting member (140, 240, 340, 440) comprises a first unit (140a, 240a, 440a) and a second unit (140b, 240b, 440b), wherein the first unit (140a, 240a, 440a) is connected to a first frame (110, 310, 410), the second unit (140b, 240b, 440b) is connected to a second frame (120, 320, 420), and the first unit (140a, 240a, 440a) is rotatably connected to the second unit (140b, 240b, 440b).