Abstract: An apparatus for wireless communication includes a receiver configured to receive a request for data associated with an Internet-of-things (IoT) service session with an IoT cloud server. The apparatus further includes a transmitter configured to transmit, based on receiving the request and prior to transmitting a response to the request, a message indicating a timing parameter associated with availability of the data. The receiver is further configured to receive an uplink grant at a time that is based on the timing parameter, and the transmitter is further configured to transmit the response to the request based on the uplink grant. The response includes at least a subset of the data.

Abstract: The present disclosure discloses a method for detecting a natural frequency of a blade by a single blade tip timing sensor. In the method, two segments of displacement data vectors are subjected to dot product to obtain a product data vector after multiplication of corresponding serial numbers, the product data vector is subjected to low-frequency filtering, the filtered product vector is subjected to Hilbert transform to obtain an instantaneous phase, the instantaneous phase is subjected to discrete Fourier transform, an absolute value of a natural frequency difference between blades is extracted from amplitude frequency data, blades on a bladed disk are subjected to permutation and combination to obtain absolute values of the natural frequency differences between all the blades, a sum of the absolute values of the natural frequency differences between each blade and other blades is calculated.

Abstract: A controller used in an isolated switching converter having a transformer, a primary switch and a secondary switch. The controller has an error amplifying circuit, a control generator and an isolation circuit. The error amplifying circuit generates a first compensation signal based on the difference between a reference voltage and an output feedback signal. The control generator generates a first and second control signals based on the first compensation signal. The isolation circuit has a first channel for providing a first synchronous signal electrically isolated from the first control signal, for controlling a peak value of a current flowing through the primary switch, and has a second channel for providing a second synchronous signal electrically isolated from the second control signal, for controlling the switching frequency of the primary switch.

Abstract: A controller used in an isolated switching converter. The controller has an error amplifying circuit for generating a first compensation signal based on the difference between an output feedback signal and a reference voltage, a control generator for generating a first and second control signals based on the first compensation signal, an isolation circuit for providing a first synchronous signal electrically isolated from the first control signal and a second synchronous signal electrically isolated from the second control signal, an upper threshold generator for providing an upper threshold voltage, and a peak current generator for providing a peak current signal for controlling a peak value of a current flowing through the primary switch based on the first synchronous signal, the second synchronous signal and the upper threshold voltage. The upper threshold voltage is adjusted above a first upper threshold voltage when a peak power demand is made.

Abstract: A package comprising a substrate comprising at least one dielectric layer and a plurality of interconnects, a first chiplet coupled to the substrate, a second chiplet coupled to the first chiplet, an encapsulation layer coupled to the substrate, the first chiplet and the second chiplet, a plurality of encapsulation interconnects located in the encapsulation layer, a metallization portion coupled to the encapsulation layer, the second chiplet and the plurality of encapsulation interconnects and a first integrated device coupled to the metallization portion.

Abstract: The method includes: A first device obtains an auxiliary device of the first device; the first device divides to-be-backed up data into N data sets, where N is a quantity of backup devices, and the backup devices include the first device and the auxiliary device of the first device; the first device sends backup information to the auxiliary device, where the backup information includes a data set allocated to the auxiliary device, and the backup information indicates the auxiliary device to send the received data set to a preset cloud platform; and the first device sends a data set allocated to the first device to the preset cloud platform.

Abstract: This application provides a communication method and apparatus, to resolve a problem that an amount of data transmitted by a sharing device per unit of time is limited and a sharing distance is short, thereby improving data quality and increasing a quantity of shared devices. The communication method and apparatus may be applied to a communication system. The method includes providing a communication method. The method is applied to a forwarding device. The communication method includes: The forwarding device receives sharing indication information from a terminal device. The sharing indication information indicates to share first data, and the first data is to-be-shared data of the terminal device. The forwarding device obtains the first data, and sends the first data to a plurality of receiving devices based on the sharing indication information.

Abstract: An off-road vehicle includes a frame and an engine. The engine includes a cylinder block and a cylinder head, on which an exhaust passage is arranged. The cylinder head is provided with a supplementary air supply passage for mixing air into the exhaust gas discharged from the combustion chamber. Alternatively, the supplementary air supply passage can be included in the exhaust system, such as in a cylinder head mounting flange of the exhaust pipe, upstream of an oxygen sensor and first and second stage catalytic converters. The exhaust gas from the engine is further oxidized by air, which reduces the content of components such as CO and NOx in the exhaust gas, improving environmental protection.

Abstract: A method for displaying a graphical user interface (GUI) based on a gesture is implemented by an electronic device. The method includes displaying a first GUI on a touchscreen of the electronic device, where the first GUI includes two or more entries, and each entry includes at least two interface elements. The method further includes receiving a first gesture of a user on the touchscreen. The method further includes displaying a second GUI on the touchscreen in response to the first gesture, where the second GUI includes two or more entries, and each entry includes at least one interface element. A quantity of entries in the second GUI is greater than a quantity of entries in the first GUI, and a quantity of interface elements in the second GUI is less than a quantity of interface elements in the first GUI.

Abstract: Disclosed is a sulfate corrosion-resistant concrete, a method for optimizing proportion and application thereof. The concrete is formed by mixing and stirring base stocks, aggregates, admixtures, external additives and water. The base stock of the concrete is 17.4-17.5 parts of Portland cement; the aggregates include 38.9 parts of basalt with aggregate size of 5-10 mm and 33.1-33.2 parts of basalt medium sand; the admixtures are 1.9-1.95 parts of silica fume or fly ash, and further including 0.23-0.24 part of polycarboxylate water reducer and 1.34-1.35 part of sulfate corrosion-resistant liquid preservative. Optimized proportion method: according to the corrosion characteristics of sulfate and corrosion environment parameters, determine the composition and proportion of basic samples and comparison samples, make and cure sample components, test the deep components of the samples, and obtain the optimal composition and proportion according to the test results.

Abstract: Disclosed is a method for evaluating environmental erosion of thaumasite in tunnel concrete, including: acquiring natural corrosion action parameters and environmental influence action parameters, and evaluating a natural corrosion situation based on the natural corrosion action parameters to obtain an initial evaluation result; and modifying the initial evaluation result based on the environmental influence action parameters to obtain a target evaluation result.

Abstract: Disclosed is a sulfate corrosion-resistant concrete, a method for optimizing proportion and application thereof. The concrete is formed by mixing and stirring base stocks, aggregates, admixtures, external additives and water. The base stock of the concrete is 17.4-17.5 parts of Portland cement; the aggregates include 38.9 parts of basalt with aggregate size of 5-10 mm and 33.1-33.2 parts of basalt medium sand; the admixtures are 1.9-1.95 parts of silica fume or fly ash, and further including 0.23-0.24 part of polycarboxylate water reducer and 1.34-1.35 part of sulfate corrosion-resistant liquid preservative. Optimized proportion method: according to the corrosion characteristics of sulfate and corrosion environment parameters, determine the composition and proportion of basic samples and comparison samples, make and cure sample components, test the deep components of the samples, and obtain the optimal composition and proportion according to the test results.

Abstract: A database (DB) file backup method and apparatus, and an electronic device are provided. The method includes: an electronic device segments a DB file, to obtain local subfiles of the DB file, obtains a first local subfile from the local subfiles, and uploads the first local subfile to a server, where the first local subfile is a local subfile that does not have a corresponding server side subfile in the server; and/or obtains a second local subfile from the local subfiles, and uploads the second local subfile to the server, where the second local subfile is a local subfile that has a corresponding server side subfile in the server and that corresponds to a content comparison result indicating that the second local subfile and the corresponding server side subfile are inconsistent. In this case, a local subfile whose content does not change is not uploaded each time.

Abstract: A file sharing method, a system, and a related device are provided, which are applicable to the field of internet technologies. The file sharing method includes, after detecting a sharing operation instruction of an original file, a terminal device obtains a cloud identifier corresponding to the original file, the terminal device obtains, from the cloud disk server, the original file corresponding to the cloud identifier, and the terminal device sends the obtained original file corresponding to the cloud identifier to a target sharing terminal, so that sharing of a file stored in the cloud disk server can be implemented without jumping by using an address link.

Abstract: An autonomous driving control system, comprising a main control system and a backup control system. The main control system comprises a main control module and main execution modules, and the backup control system comprises a backup control module and backup execution modules; the main control module monitors an operating status of the main control system in real time; the main control module further sends, when detecting that a failure occurs in the main control system, a failure notification to the backup control module, and sends a response termination control instruction to each of the main execution modules, the response termination control instruction being a control instruction for instructing each of the main execution modules not to respond to any control over a vehicle; and the backup control module controls, after receiving the failure notification, the backup execution modules to start to execute a backup control instruction.

Abstract: A method for displaying a graphical user interface (GUI) based on a gesture is implemented by an electronic device. The method includes displaying a first GUI on a touchscreen of the electronic device, where the first GUI includes two or more entries, and each entry includes at least two interface elements. The method further includes receiving a first gesture of a user on the touchscreen. The method further includes displaying a second GUI on the touchscreen in response to the first gesture, where the second GUI includes two or more entries, and each entry includes at least one interface element. A quantity of entries in the second GUI is greater than a quantity of entries in the first GUI, and a quantity of interface elements in the second GUI is less than a quantity of interface elements in the first GUI.

Abstract: A microsphere of oxide has an opening on its surface connected to a hollow core inside, forming a cavity. The oxide the microsphere is made of is selected from the group consisting of alumina, silica, zirconia, magnesium oxide, calcium oxide and titania. The microsphere of oxide shows better mass and heat transfer characteristics, and has strength significantly higher than that of existing products with similar structures. A FT synthesis catalyst has the microsphere of oxide as a support and an active metal component disposed on the support. The active metal component is one or more selected from the group consisting of Co, Fe, and Ru.

Abstract: An autonomous driving control system comprises a main controller, a backup controller, main execution apparatuses and backup execution apparatuses. The backup controller is configured to decompose, when receiving a main control instruction from the main controller, the main control instruction to obtain backup control instructions corresponding to the backup execution apparatuses respectively, and send the backup control instructions to the backup execution apparatuses correspondingly; and the control system is configured to control, when detecting that an abnormality occurs in any one device of the main execution apparatuses, the backup execution apparatus corresponding to the device in which the abnormality has occurred to execute a corresponding backup control instruction. The system can solve the problem that an autonomous driving control system cannot operate normally when any controller or actuation mechanism fails at a single point.

Abstract: A method for displaying a graphical user interface (GUI) based on a gesture is implemented by an electronic device. The method includes displaying a first GUI on a touchscreen of the electronic device, where the first GUI includes two or more entries, and the entry includes at least two interface elements. The method further includes receiving a first gesture of a user on the touchscreen. The method further includes displaying a second GUI on the touchscreen in response to the first gesture, where the second GUI includes two or more entries, and the entry includes at least one interface element. A quantity of entries in the second GUI is greater than a quantity of entries in the first GUI, and a quantity of interface elements in the second GUI is less than a quantity of interface elements in the first GUI.

Abstract: An orbiting scroll plate driving assembly provided by the present application includes a main shaft (7), a tail driving shaft (6), and an eccentric shaft sleeve (5). The tail driving shaft (6) is eccentrically connected to the main shaft (7), and the eccentric shaft sleeve (5) is rotatably sleeved on the tail driving shaft (6). The orbiting scroll plate driving assembly further includes a limiting portion (14). The limiting portion (14) is disposed on the tail driving shaft (6), and provided with a first limiting portion protrusion (141). The eccentric shaft sleeve (5) is provided with an eccentric shaft sleeve groove (51). The first limiting portion protrusion (141) is correspondingly inserted into the eccentric shaft sleeve groove. A circumferential size of the eccentric shaft sleeve groove (51) is larger than a circumferential size of the first limiting portion protrusion (141).