Abstract: A communication system comprising a first base station that includes a first controller and a second base station that includes a second controller, wherein the first controller is configured to transmit a handover request to the second base station in a case where handover of a user terminal to the second base station is required, the second controller is configured to transmit a handover response to the first base station in response to reception of the handover request, the handover response including a renewable energy use rate of the second base station, and the first controller is configured to transmit a handover command to the user terminal in response to reception of the handover response, the handover command including the renewable energy use rate or a data transmission control command according to the renewable energy use rate.

Abstract: A communication system comprising: a first base station having a first controller and a second base station having a second controller, wherein the first controller transmits a handover request to the second base station when a handover to the second base station is required for a user terminal, the second controller transmits a handover response including congestion state information at the second base station to the first base station in response to receiving the handover request, and the first controller transmits a handover command including the congestion state information or a data transmission control command according to the congestion state information to the user terminal in response to receiving the handover response.

Abstract: A detection device for detecting a workpiece with multiple surfaces includes a rotary table carrying the workpiece and moving the workpiece by rotation and a plurality of photographing devices arranged at a plurality of different positions around the rotary table. Each photographing device has an image capture device capturing an image of a corresponding surface of the workpiece that is moved to the image capture device. An orientation of the image capture device is defined by a first offset angle and a second offset angle when the image capture device captures the image of the corresponding surface of the workpiece.

Abstract: The present disclosure provides a radiation inspection system, including a container respectively provided with an entrance and an exit on opposite side walls thereof; and a radiation scanning imaging device disposed in the container and having an inspection channel. The radiation scanning imaging device includes a ray source, the ray source includes ray generators, and ray generators are configured to emit ray beams at different angles, so that the radiation scanning imaging device performs radiation scanning inspection on an object to be inspected passing through the inspection channel from the entrance to the exit.

Abstract: A native leaflet treatment system and method for treating native heart valve leaflets before heart valve repair or replacement procedure. The treatment system includes a delivery apparatus configured to enter the heart, and a native leaflet treatment device stored in the delivery apparatus in a compressed state. The treatment device includes a clamping structure, which is configured to retain at least a portion of the native leaflets in the deployed state. The treatment device is delivered into the heart using the delivery apparatus, and released near the native heart valve, where the treatment device expands and the clamping structure captures and holds the native leaflet, such that the native leaflets will no longer block blood flow. This improves the dynamics of the blood flow which facilitates subsequent surgical procedures (minimally-invasive surgery or open surgery) for heart valve repair or replacement.

Abstract: The present disclosure provides methods and devices for key management. In one example, a method of key management comprises: obtaining, at a user device, a number of users in a group of users and a minimum number of users for restoring a transaction key; randomly generating the transaction key; splitting the transaction key into a plurality of sub-keys, the number of sub-keys being the same as the number of users; and sending the plurality of sub-keys to a management device, each of the plurality of sub-keys being encrypted with a public key of a user corresponding to a sub-key.

Abstract: The present disclosure relates to a method, apparatus, electronic device and storage medium for presentation of a matching scheme. The method comprises: acquiring a set of matching schemes; transmitting, to a first terminal, attribute information of matching schemes in the set of matching schemes, so that the first terminal displays attribute information of matching schemes comprised in the set of matching schemes; in response to a selection request for one of matching schemes transmitted by the first terminal, determining the selected matching scheme as a matching scheme to be explained; in response to a presentation request for the matching scheme to be explained that is transmitted by a second terminal, transmitting attribute information of the matching scheme to be explained to the second terminal, so that the second terminal presents a target information streaming page comprising at least a part of attribute information of the matching scheme to be explained.

Abstract: The present invention relates to application of gossypol and its optical isomers to preparation of an anti-Coronavirus drug. Specifically disclosed is application of pharmaceutically acceptable salts, solvates, isotopes, stereoisomers, stereoisomer mixtures, and tautomers of the gossypol and its optical isomers to preparation of a drug for preventing and/or treating a disease caused by a Coronavirus. The Coronavirus is MERS-CoV, SARS-CoV, or SARS-CoV-2. It is found in the present invention for the first time that the gossypol and its optical isomers can inhibit the activity of Coronavirus 3CL proteases to achieve an anti-Coronavirus effect. The half maximal inhibitory concentrations of gossypol and (?)-gossypol to SARS-CoV proteases and SARS-CoV-2 3CL proteases are all lower than 10 ?M. The anti-Coronavirus 3CL protease effect is good. Therefore, the gossypol and its optical isomers have the potential for use in the preparation of a drug for preventing and/or treating novel Coronavirus infections.

Abstract: The present disclosure relates to an organic electroluminescent device, in which co-host materials with a specific P:N ratio are used, and the energy level and mobility of the materials of the functional layers are adjusted to be within specific ranges, so that good device performances could be produced under a plurality of P:N ratios, thereby providing more possibilities for the selection of devices.

Abstract: The present disclosure provides a radiation inspection device, which has a transportation state and a working state, and includes a container with an adjustable width, and the width of the container in the transportation state is smaller than that in the working state; a radiation inspection apparatus arranged in the container and including a radiation source and a detector, and in the transportation state, the length of the radiation inspection apparatus is arranged along the length direction of the container, and in the working state, the length of the radiation inspection apparatus is arranged along the width direction of the container to perform radiation scanning inspection on vehicles passing through the container along the length direction; a rotating apparatus arranged in the container and configured to rotate the radiation inspection apparatus when the radiation inspection device is switched between the transportation state and the working state.

Abstract: Systems and techniques are provided for simulating autonomous vehicle operations and outcomes for technical changes. An example method can include determining one or more conditions to be implemented in one or more autonomous vehicle (AV) driving simulations; simulating a performance of an autonomous vehicle with one or more AV modifications when driving in an environment having the one or more conditions; determining a particular impact that the one or more AV modifications need to have on the performance of the autonomous vehicle to achieve one or more objectives associated with the one or more conditions; and based on the particular impact that the one or more AV modifications need to have on the performance of the autonomous vehicle to achieve the one or more objectives, determining an AV modification estimated to have the particular impact on the performance of the autonomous vehicle needed to achieve the one or more objectives.

Abstract: Disclosed is a charging station capable of realizing mutual capacity aid, which comprises a plurality of charging units, a power bus and a mutual capacity aid bus. Each charging unit is powered by the power bus, and each charging unit provides mutual aid capacity for another charging unit through the mutual capacity aid bus or receives mutual aid capacity from other charging units through the mutual capacity aid bus. The charging station can realize rapid charging of electric vehicles, and can also realize mutual capacity aid.

Abstract: Propulsion systems for aircraft include a fan and a low pressure turbine operably coupled to a first shaft, a low pressure compressor and an intermediate pressure turbine operably coupled to a second shaft, and a high pressure compressor and a high pressure turbine operably coupled to a third shaft. A burner is arranged between the high pressure compressor and the high pressure turbine, with a main flow path defined through the propulsion system. A hydrogen fuel system is configured to supply hydrogen fuel to the burner. A condenser is arranged along the main flow path and configured to extract water from exhaust from the burner. An evaporator is arranged along the main flow path and configured to receive a portion of the water to generate steam which is injected into the main flow path upstream from the evaporator.

Abstract: A display panel and a terminal device in the field of terminal technologies. A light-emitting component is disposed in each of a first display region and a second display region of the display panel, and a pixel drive circuit and a signal line are disposed only in the first display region, so that each pixel drive circuit is connected to the light-emitting component by using a bridge wire. Therefore, when the signal line in the first display region is connected to a drive chip by using a fan-out lead, a size of the fan-out lead located in a fan-out region can be reduced in a direction from a display region to a binding region, thereby reducing a frame width on a first side of the display panel.

Abstract: The present disclosure relates to the field of biopharmaceuticals and provides a nerve growth factor (NGF) fusion protein and a preparation method and use thereof. The fusion protein has a general formula represented by A-B or A-L-B, wherein A is a nerve growth factor, L is a linker peptide, and B is an Fc moiety of IgG, or an analogue of the Fc moiety of IgG, or a fragment of the Fc moiety of IgG. The fusion protein of the present disclosure has the following advantages over a wild-type NGF: higher biological activity, a half-life extended more than 17 times, greatly reduced administration frequency, and significantly increased efficacy.

Abstract: An energy supply system includes a source of gas which is at a pressure that is equal to or greater than an atmospheric pressure. The source of gas is configured to deliver the gas into a combustor where it is mixed with a fuel. The combustor is also connected to receive a source of steam. The combustor is operable to provide combustion. Products of the combustion downstream of the combustor are connected to be delivered across a turbine rotor. The turbine rotor is provided with a shaft. The turbine shaft drives a generator. An evaporator downstream of the turbine receives the products of the combustion. The evaporator is operable to heat a source of water. The source of water downstream of the evaporator is the source of steam delivered into the combustor. The gas includes greater than 80% oxygen and the fuel includes hydrogen.

Abstract: An electronic device includes a camera and a position detection component arranged in an accommodating cavity. The position detection component includes a circuit board, a bracket, a first magnet, and a Hall sensor. The camera of the electronic device is arranged on the bracket, and the camera can stretch out of or retract into the accommodating cavity constituted by a housing. The Hall sensor includes a first working surface and a second working surface which respectively extend in different directions. The Hall sensor senses a magnetic field of the first magnet through the first working surface and the second working surface and generates induction signals. The induction signals are used to determine a stretching-out position and a retracting position of the camera.

Abstract: A display method is provided. The display method includes: obtaining information of a target display array on a display device, the target display array including a first number of display units arranged; obtaining target pulse sequences that characterize dynamic spatiotemporal information; determining display state information of each display unit in the first number of display units from a spatiotemporal relationship between the target pulse sequences and the target display array; and causing visualization of pulse signals in the target pulse sequences on the display device based on the display state information of each display unit in the first number of display units.

Abstract: The present invention discloses a special hydraulic press for bulging pressing forming of an automobile axle housing and a pressing forming method. A hydraulic press body is a closed frame consisting of an upper cross beam, a lower cross beam, four stand columns I, II, III, and IV, four vertical pull rods I, II, III, and IV, and four transverse pull rods I, II, III, and IV, and is used for balancing a deformation force up to 3000 T in the vertical direction or the horizontal direction in the pressing forming process. During pressing forming, the downward speeds of a main hydraulic cylinder, small left and right vertical hydraulic cylinders are precisely controlled to prevent the left end, the right end and the middle of the tube blank from bending.

Abstract: A gas turbine engine includes a core engine that includes a core flow path where air is compressed in a compressor section, communicated to a combustor section, mixed with an ammonia based fuel and ignited to generate a high energy combusted gas flow that is expanded through a turbine section. The turbine section is mechanically coupled to drive the compressor section. An ammonia flow path communicates an ammonia flow to the combustor section. A cracking device is disposed in the ammonia flow path. The cracking device is configured to decompose the ammonia flow into a fuel flow containing hydrogen (H2). At least one heat exchanger is upstream of the cracking device that provides thermal communication between the ammonia flow and a working fluid flow such that the ammonia fluid flow accepts thermal energy from the working fluid flow.