Abstract: An ultra-large horizontal seepage test system with intelligent graded loading and variable seepage path is provided, which includes a water storage system, a water pressure system, a horizontal seepage test system and an intelligent loading and control system. The water storage system, the water pressure system and the horizontal seepage test system are connected in sequence, and the water pressure system is used to apply a water pressure and a vertical pressure to a test piece to be tested in the horizontal seepage test system. An outlet valve of the horizontal seepage test system is connected to the water storage system, and the intelligent loading and control system is used to control operations of electrical components of the water pressure system and the horizontal seepage test system. With the test system, a water head pressure can be loaded intelligently, and an infiltration angle of water inflow can be adjusted.

Abstract: An optical lens has an optical axis. The optical lens includes a lens barrel, a first lens element, a lens element group, and an optical element. The lens barrel has a first opening and a second opening opposite to each other, and the first opening is smaller than the second opening. The first lens element abuts against the lens barrel. The lens element group is fitted with the first lens element. The optical element includes a fixing portion and a bearing portion connected to each other. The fixing portion abuts against the lens barrel, the bearing portion abuts against the lens element group, and the fixing portion has a protrusion extending toward a direction of the first lens element. The protrusion is positioned between the lens barrel and the lens element group in a radial direction.

Abstract: A lens barrel, including a barrel wall and a sleeve, is provided. The barrel wall extends from an object side to an image side around an optical axis, and has a lens barrel inner surface facing the optical axis and a lens barrel outer surface facing away from the lens barrel inner surface. The lens barrel outer surface includes a lens barrel object-side surface facing the object side. The sleeve is fixed on the lens barrel outer surface and partially embedded in the barrel wall. The sleeve has an object-side end closest to the object side and an image-side end closest to the image side. The object-side end does not extend beyond the lens barrel object-side surface not covered by the sleeve and closest to the object-side end in a direction parallel to the optical axis.

Abstract: A lens barrel, including a barrel wall and a sleeve, is provided. The barrel wall extends from an object side to an image side around an optical axis, and has a lens barrel inner surface facing the optical axis and a lens barrel outer surface facing away from the lens barrel inner surface. The lens barrel outer surface includes a lens barrel object-side surface facing the object side. The sleeve is fixed on the lens barrel outer surface and partially embedded in the barrel wall. The sleeve has an object-side end closest to the object side and an image-side end closest to the image side. The object-side end does not extend beyond the lens barrel object-side surface not covered by the sleeve and closest to the object-side end in a direction parallel to the optical axis.

Abstract: An optical lens including a light-shielding sheet and a spacer sequentially arranged along an optical axis from a first side to a second side is provided. No other element is disposed between the light-shielding sheet and the spacer. A second side surface of the light-shielding sheet includes a first surface. A first side surface of the spacer includes an abutting surface and a connecting surface connected to each other, and the connecting surface has a protrusion portion. A cross-sectional line of the abutting surface of the spacer in a radial direction is a straight line and abuts against the first surface of the light-shielding sheet, and an abutment between the abutting surface and the first surface falls on a first reference plane. The light-shielding sheet and a most protruding portion of the protrusion portion are located on a same side of the first reference plane.

Abstract: A message transmission method and apparatus in a cluster file system includes determining, by a first host in a cluster file system, that the message network link is faulty; switching from the message network link for message transmission to a storage channel; generating a first message; and recording the first message in a first location area of a data storage medium, where the first location area is used by a second host to access and read the first message.

Abstract: The disclosed embodiments describe a method, apparatus, and system for pushing information. In one embodiment, the method comprises: receiving dynamic spatio-temporal behavior data of a moving individual; conducting an analysis according to historical dynamic spatio-temporal behavior data of the moving individual to acquire spatio-temporal behavioral characteristics of the moving individual; determining appropriate information as matching information for the moving individual according to the spatio-temporal behavioral characteristics of the moving individual in combination with dynamic spatio-temporal behavior data of the moving individual at a current time; and sending the matching information to the moving individual. In the method of the disclosure, behavioral characteristics of a moving individual are analyzed to obtain habit and preference characteristics of the moving individual.

Abstract: A message transmission method and apparatus in a cluster file system includes determining, by a first host in a cluster file system, that the message network link is faulty; switching from the message network link for message transmission to a storage channel; generating a first message; and recording the first message in a first location area of a data storage medium, where the first location area is used by a second host to access and read the first message.

Abstract: A lens barrel module is disclosed to include a lens barrel unit and a flow path unit. The lens barrel unit extends along an axis and includes a peripheral wall that surrounds the axis and that has a first end adjacent to an object side of a lens assembly and a second end opposite to the first end and adjacent to an image side of the lens assembly. The peripheral wall defines an accommodation space configured as a series of accommodation sections for receiving the optical members. The flow path unit is formed in the lens barrel module and is in spatial communication with at least two of the accommodation sections. A lens assembly including the lens barrel module is also disclosed.

Abstract: The disclosed embodiments describe a method, apparatus, and system for pushing information. In one embodiment, the method comprises: receiving dynamic spatio-temporal behavior data of a moving individual; conducting an analysis according to historical dynamic spatio-temporal behavior data of the moving individual to acquire spatio-temporal behavioral characteristics of the moving individual; determining appropriate information as matching information for the moving individual according to the spatio-temporal behavioral characteristics of the moving individual in combination with dynamic spatio-temporal behavior data of the moving individual at a current time; and sending the matching information to the moving individual. In the method of the disclosure, behavioral characteristics of a moving individual are analyzed to obtain habit and preference characteristics of the moving individual.

Abstract: A lens barrel module is disclosed to include a lens barrel unit and a flow path unit. The lens barrel unit extends along an axis and includes a peripheral wall that surrounds the axis and that has a first end adjacent to an object side of a lens assembly and a second end opposite to the first end and adjacent to an image side of the lens assembly. The peripheral wall defines an accommodation space configured as a series of accommodation sections for receiving the optical members. The flow path unit is formed in the lens barrel module and is in spatial communication with at least two of the accommodation sections. A lens assembly including the lens barrel module is also disclosed.

Abstract: An imaging lens includes a lens barrel, a plurality of lens elements and a spacer. The lens elements are disposed in the lens barrel. The spacer is disposed between the lens barrel and one of the lens elements or between two adjacent lens elements. The spacer is ring-shaped and includes an inside layer and two outside layers. The two outside layers are attached on opposite sides of the inside layer, respectively. The spacer has an object-side surface, an image-side surface and a first inner ring-shaped oblique surface. The object-side surface and the image-side surface are formed outside the two outside layers in parallel and oriented toward an object side and an image side of the lens elements, respectively. The first inner ring-shaped oblique surface is formed at an inner periphery of the spacer and connected to at least one of the object-side surface and the image-side surface.

Abstract: An imaging lens includes a lens barrel, a plurality of lens elements and a spacer. The lens elements are disposed in the lens barrel. The spacer is disposed between the lens barrel and one of the lens elements or between two adjacent lens elements. The spacer is ring-shaped and includes an inside layer and two outside layers. The two outside layers are attached on opposite sides of the inside layer, respectively. The spacer has an object-side surface, an image-side surface and a first inner ring-shaped oblique surface. The object-side surface and the image-side surface are formed outside the two outside layers in parallel and oriented toward an object side and an image side of the lens elements, respectively. The first inner ring-shaped oblique surface is formed at an inner periphery of the spacer and connected to at least one of the object-side surface and the image-side surface.