Abstract: Embodiments relate to interactively debugging non-native code inside native executables to identify erroneous execution logic and/or performance issues. The non-native code can be WebAssembly (WASM) code. Source smart contract code can be converted into a native binary in a format of a shared library. The shared library can be loaded by a blockchain executable when ready to load the smart contract for execution, and execution control can be passed to the shared library. A debugger can be attached to the host executable and single step through the smart contract code invoked. Embodiments relate to enabling interactive debugging of code as shared libraries (.

Abstract: A self-massaging tool is provided. The self-massaging tool comprises a first base layer. Further, the self-massaging tool comprises a second layer formed upon the first base layer, wherein the second layer comprises a plurality of rounded protruding structures configured to assert pressure during self-massage of the user, wherein the self-massaging tool has a curved shape providing an outward bulge around its center when the self-massaging tool is aligned with the spine of the user, and wherein the curved shape of the self-massaging tool facilitates a neutral alignment with the spine of the user.

Abstract: A power take-off unit ring gear shaft, a method of manufacturing such a power take-off unit ring gear shaft and an apparatus comprising the power take-off unit ring gear shaft. The ring gear shaft of the invention has an annular shaft wall which surrounds a hollow inner cavity that extends throughout the entire gear shaft in an axial direction, and hollow portions are formed in the shaft wall. The invention realizes a lightweight product, helps to realize a lightweight entire vehicle, and meanwhile reduces machining areas, thus improving production efficiency of machining, reducing production cost of product, reducing labor intensity and improving productivity.

Abstract: A power take-off unit ring gear shaft, a method of manufacturing such a power take-off unit ring gear shaft and an apparatus comprising the power take-off unit ring gear shaft. The ring gear shaft of the invention has an annular shaft wall which surrounds a hollow inner cavity that extends throughout the entire gear shaft in an axial direction, and hollow portions are formed in the shaft wall. The invention realizes a lightweight product, helps to realize a lightweight entire vehicle, and meanwhile reduces machining areas, thus improving production efficiency of machining, reducing production cost of product, reducing labor intensity and improving productivity.