Abstract: Apparatuses, methods and storage medium associated with installing and executing an application program on an embedded system are described herein. In embodiments, an embedded system may include an application management program and an application execution program to install an application program onto the embedded system. The application management program is to verify metadata associated with the application program, in response to a first request to install the application program on the embedded system; and the application execution program is to verify the application program, in response to a second request, subsequent to the first request, to verify the application program. Other aspects and embodiments may be described and/or claimed.

Abstract: Apparatuses, methods and storage medium associated with installing and executing an application program on an embedded system are described herein. In embodiments, an embedded system may include an application management program and an application execution program to install an application program onto the embedded system. The application management program is to verify metadata associated with the application program, in response to a first request to install the application program on the embedded system; and the application execution program is to verify the application program, in response to a second request, subsequent to the first request, to verify the application program. Other aspects and embodiments may be described and/or claimed.

Abstract: An axial plunger slurry pump comprises a pump body, a sloping cam plate, a swashplate, cylinders, plungers and a pump head. Each of the plungers comprises a plunger body with a rubber piston positioned in its front end and being able to slide over it, and an oil receiving gap communicating with an oil passage disposed between two facing end surfaces of the plunger body and the rubber piston. There are check valves each of which is provided in an oil passage between a ball of each of two-ball links, which ball is coupled with the swashplate, and the swashplate. Each of the cylinder and the plunger body are fitted together by means of a half-and-half locating pad, a cylinder sleeve, a pressing cap, and a locking device. The pump may be used widely in drilling, electric power, mine, building, and metallurgy, etc., for conveying mud, mortar, ore pulp, coal pulp, concrete, etc.