The present invention relates to processes for hydromethanating a carbonaceous feedstock to a fines-depleted methane-enriched synthesis gas, with recycle of recovered particulate fines back into a specified portion of a hydromethanation reactor. By the handheld device, a control message is converted into a pulse signal. The three-dimensional portions are bonded to the flat portions at cutout portions thereof by a thermo-compression sheet or adhesive tape or the like. When an accessor object tries to access a related accessed object over an authorization relationship type, the authorization system determines the permissions granted by inspecting the implicit authorization relationship type definition. The shape retaining element enables the intumescent sheet material to maintain a cone shape. 1\u02dc1%, an undoped GaN layer formed on the Al-doped GaN layer, and an AlGaN layer formed on the undoped GaN layer such that a two-dimensional electron gas layer is formed at an interface of the undoped GaN layer.