Abstract: The disclosure provides an optical lens assembly and an electronic device. The optical lens assembly comprises: a first lens having a negative refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a positive refractive power; a fifth lens having a refractive power; a sixth lens having a refractive power; and a seventh lens having a refractive power; a distance d11 from a second side surface of the sixth lens to a first side surface of the seventh lens on the optical axis and a total optical length TTL of the optical lens assembly meet: d11/TTL?0.03. The disclosure solves at least one problem among high resolution, miniaturization, inability of clear imaging during large temperature differences, or poor imaging quality in low light environments in optical lens assembly in the related art.

Abstract: An optical lens and an electronic device comprising same. The optical lens sequentially comprises, from an object side to an image side along an optical axis: a first lens (L1) having a negative focal power, an object side surface (S1) of the first lens being concave; a second lens (L2) having a positive focal power; a third lens (L3) having a positive focal power, an object side surface (S6) of the third lens being convex, and an image side surface (S7) of the third lens being convex; a fourth lens (L4) having a positive focal power; a fifth lens (L5) having a negative focal power; a sixth lens (L6) having a focal power; and a seventh lens (L7) having a negative focal power; the number of lenses having refractive powers in the optical lens assembly is seven.

Abstract: This application provides a communication method and a related device, to indicate, on a transmission path of a packet, different network measurement technologies by using information at different positions of the packet, so that communication devices on the path can implement network measurement based on the different network measurement technologies. In this method, a first device receives a first packet. The first packet includes first information, and the first information indicates to perform first network measurement on the first packet. The first device sends a second packet based on the first packet. The second packet includes second information, and the second information indicates to perform second network measurement on the second packet. A first position of the first information in the first packet is different from a second position of the second information in the second packet.

Abstract: A high-strength steel structure joint connection device includes a device body and a connection seat disposed on two opposite side surfaces of the device body. An inner locking block fixedly connected to the side surface of the device body is disposed inside the connection seat. A steel structure body is inserted between the connection seat and the inner locking block. The steel structure body and the connection seat are detachably and fixedly connected through a positioning mechanism. The high-strength steel structure joint connection device can effectively achieve firm connection of steel structure members, ensure structural stability and improve load-bearing capacity under seismic action or in low-temperature environments, while being suitable for various complex structural forms and facilitating installation and disassembly.

Abstract: Provided in the disclosure are an optical lens assembly and an electronic device. The optical lens assembly includes, in sequence from a first side to a second side: a first lens with a positive refractive power, wherein a first-side face of the first lens is a convex face; a second lens with a negative refractive power, wherein a first-side face of the second lens is a concave face, and a second-side face of the second lens is a concave face; a third lens with a positive refractive power, wherein a second-side face of the third lens is a convex face; a fourth lens with a refractive power, wherein a first-side face of the fourth lens is a convex face; a fifth lens with a refractive power; and a sixth lens with a negative refractive power.

Abstract: An optical lens assembly and an electronic device are provided. From an object side to an image side along an optical axis, the optical lens sequentially comprises: a first lens (L1) having a negative refractive power, wherein the object-side surface (S1) of the first lens is a convex surface, and the image-side surface (S2) of the first lens is a concave surface; a second lens (L2) having refractive power, wherein the object-side surface (S3) of the second lens is a concave surface, and the image-side surface (S4) of the second lens is a convex surface; a third lens (L3) having positive refractive power; a fourth lens (L4) having refractive power, wherein the object-side surface (S8) of the fourth lens is a convex surface; a fifth lens (L5) having refractive power; and a sixth lens (L6) having refractive power.

Abstract: An optical lens and an electronic device comprising same. The optical lens sequentially comprises, from an object side to an image side along an optical axis: a first lens (L1) having a negative focal power, an object side surface (S1) of the first lens being concave; a second lens (L2) having a positive focal power, an object side surface (S3, S4) of the second lens being convex; a third lens (L3) having a positive focal power, an object side surface (S6) of the third lens being convex, and an image side surface (S7) of the third lens being convex; a fourth lens (L4) having a positive focal power, an object side surface (S8) of the fourth lens being convex; a fifth lens (L5) having a negative focal power, an image side surface (S10, S9) of the fifth lens being concave; a sixth lens (L6) having a focal power; and a seventh lens (L7) having a negative focal power, an image-side surface of the fifth lens being a concave surface.

Abstract: In a method for cross-cluster service access, a tenant configures a created cluster group, and a gateway sends configuration information to each application gateway such that when receiving a service access request of a client in a first cluster, a first application gateway may directly forward, based on the configuration information, the service access request to an application gateway corresponding to another cluster. In this way, the tenant can access a service in the other cluster, to implement automatic access between services in a plurality of clusters, thereby facilitating management.

Abstract: An optical lens assembly and an electronic device are provided. From an object side to an image side along an optical axis, the optical lens sequentially comprises: a first lens (L1) having a negative refractive power, wherein the object-side surface (S1) of the first lens is a convex surface, and the image-side surface (S2) of the first lens is a concave surface; a second lens (L2) having refractive power, wherein the object-side surface (S3) of the second lens is a concave surface, and the image-side surface (S4) of the second lens is a convex surface; a third lens (L3) having positive refractive power; a fourth lens (L4) having refractive power, wherein the object-side surface (S8) of the fourth lens is a convex surface; a fifth lens (L5) having refractive power; and a sixth lens (L6) having refractive power.

Abstract: The disclosure provides an optical lens assembly and an electronic device. The optical lens assembly comprises: a first lens having a negative refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens having a positive refractive power; a fifth lens having a refractive power; a sixth lens having a refractive power; and a seventh lens having a refractive power; a distance d11 from a second side surface of the sixth lens to a first side surface of the seventh lens on the optical axis and a total optical length TTL of the optical lens assembly meet: d11/TTL?0.03. The disclosure solves at least one problem among high resolution, miniaturization, inability of clear imaging during large temperature differences, or poor imaging quality in low light environments in optical lens assembly in the related art.

Abstract: The present disclosure discloses an optical lens assembly and an imaging device including the same. The optical lens assembly includes seven lenses, wherein a first lens has a negative refractive power, an object-side surface thereof is a convex surface, and an image-side surface thereof is a concave surface; a second lens has a negative refractive power, and an image-side surface thereof is a concave surface; a third lens has a negative refractive power; a fourth lens has a positive refractive power, and an object-side surface thereof is a convex surface; an object-side surface of a fifth lens is a convex surface; a seventh lens has a positive refractive power, and an object-side surface thereof is a convex surface; and the fifth lens and the sixth lens are cemented to form a cemented lens.

Abstract: A cloud management platform obtains service configuration information configured by a tenant on the cloud management platform, where the service configuration information includes one or more of the following: a network identifier, a terminal node identifier, and a terminal node type. The network identifier indicates identifiers of networks including at least two resource pools that establish a network connection, each terminal node corresponds to one resource pool, the resource pools correspond to a plurality of service providers, each resource pool includes a plurality of computing nodes, the plurality of computing nodes are used to run a business of the tenant, and the terminal node type indicates a type of a resource pool corresponding to the terminal node. The cloud management platform creates corresponding terminal nodes for the at least two resource pools based on the terminal node type.

Abstract: An optical lens assembly and an imaging device including the optical lens assembly are disclosed. The optical lens assembly, from an object side to an image side along an optical axis may sequentially include: a first lens, a second lens, a third lens, a fourth lens and a fifth lens. The first lens is of meniscus shape, at least one of surfaces of the second lens is a convex surface, one of the third and fourth lens has a positive refractive power, and the other has a negative refractive power, wherein the third lens and the fourth lens are cemented to form an cemented lens, at least one of surfaces of the fifth lens is a concave surface, and at least one of the first lens, second lens or the fifth lens has a positive refractive power.

Abstract: An optical lens assembly is provided. The optical lens assembly includes: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens, which are arranged sequentially from an object side to an image side along an optical axis. The first lens has a negative refractive power, and an object-side surface of the first lens is a convex surface, and an image-side surface of the first lens is a concave surface. The second lens has a positive refractive power, an object-side surface of the second lens is a concave surface, and an image-side surface of the second lens is a convex surface. The third lens has a refractive power. The fourth lens has a refractive power. The fifth lens has a refractive power, the sixth lens has a refractive power, and the seventh lens has a positive refractive power.

Abstract: An optical system, a vehicle-mounted camera, and a vehicle are provided. The optical system is applied to a vehicle, including: a lens group, including a plurality of lenses disposed sequentially along an optical axis from an object side to an image side; and a compensating lens, at least one of an object-side surface or an image-side surface of the compensating lens being a free-form surface; where, the free-form surface of the compensating lens is adapted to be disposed on an inner side of a windshield of the vehicle, such that the optical system and the windshield form a corrected optical system, and an MTF value of the corrected optical system is within a preset range.

Abstract: Disclosed are an optical lens, and an imaging device comprising the optical lens.

Abstract: The present invention provides a fluid measurement apparatus, including a pressure sensing element and a data processing element. The pressure sensing element is disposed in direct contact with a measured fluid, the pressure sensing element is a sealed element, and includes a first surface and a second surface that are disposed opposite to each other, the measured fluid directly impacts the first surface and the second surface, and pressure values generated when the first surface and the second surface are impacted by the measured fluid are detected. The data processing element is connected to the pressure sensing element, and a flow velocity and/or a flow rate of the measured fluid are/is calculated by using the pressure value detected by the pressure sensing element. The present invention resolves a problem that the fluid measurement apparatus cannot operate normally due to clogging of a pressure tap hole.

Abstract: The present disclosure discloses an optical lens assembly including a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens, which are arranged sequentially from an object side to an image side along an optical axis. The first lens has negative refractive power, an object-side surface thereof is convex, and an image-side surface thereof is concave. The second lens has negative refractive power, an object-side surface thereof is convex, and an image-side surface thereof is concave. The third lens has positive refractive power, and both of an object-side surface and an image-side surface thereof are convex. The fourth lens has refractive power. The fifth lens and the sixth lens are cemented to form a cemented lens. The seventh lens has positive refractive power, and both of an object-side surface and an image-side surface thereof are convex.

Abstract: A segmental precast composite-material composite-slab composite beam and a construction method thereof are provided, relating to the technical field of bridge design and construction. The segmental precast composite-material composite-slab composite beam mainly includes a segmental precast orthotropic composite top slab, a web, a bottom slab, and a wet joint between segments. The orthotropic composite top slab is composed of an orthotropic slab and an ultra-high-performance concrete layer (UHPC), and the interface connection of the orthotropic slab and the UHPC structural layer is achieved by a shear key. The UHPC structural layer is superposed with the orthotropic slab in segments in a precast plant to form a composite-slab composite beam segment to be entirely transported, hoisted and assembled, and the connection of the UHPC structural layers between the segments is achieved by casting a transverse wet joint in place.

Abstract: The present disclosure discloses an optical lens assembly and an electronic device including the optical lens assembly. The optical lens assembly includes, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens and a fifth lens. The first lens has negative refractive power; the second lens has positive refractive power; the third lens has positive refractive power, and both of an object-side surface and an image-side surface of the third lens are convex; the fourth lens has negative refractive power, and both of an object-side surface and an image-side surface of the fourth lens are concave; and the fifth lens has refractive power. The optical lens assembly may achieve at least one of the beneficial effects of high resolution, miniaturization, small aperture, small CRA, and good temperature performance and the like.