Abstract: The present invention provides novel compounds having the general formula (I) wherein R1 to R6, and m are as described herein, compositions including the compounds and methods of using the compounds.

Abstract: The present invention discloses a frame structure of a grill, in which support legs are obliquely disposed so that a grill body placed on a grill body support seat cannot easily topple, the grill body support seat and the support legs are detachably assembled by means of mating between accommodating spaces and first fasteners to limit the support legs in multiple directions, so that the support legs cannot be easily displaced relative to the grill body support seat, thus improving stability of the frame, facilitating assembly, storage and transportation, using less parts and providing a wheel body for easy movement.

Abstract: Disclosed are a method and a system for modularized modeling of equipment entities in simulation field based on meta-model, where meta-modeling is combined with modularized modeling, and equipment simulation entities are divided into different model modules in terms of their physical attributes, behavior attributes, and task reliability attributes; a complete set of metadata is designed to characterize each dimensional attribute of the entity, and a meta-model representation protocol based on extensible markup language (XML) description is used to loosely couple the modeling of each module; after the simulation experiment is designed, the modules are bound for entity instantiation.