摘要:
A wheel assembly is provided. The wheel assembly includes a wheel of the kind that may be mounted to a frame of a bicycle. The wheel assembly also has a spinning component mounted with a bearing on to a hub of the wheel. The spinning component has a plurality of radially extending, angularly-spaced components. The spinning component is set in motion when the wheel turns, and continues spinning for a period of time when the wheel is brought to a stop.
摘要:
A wheel assembly is provided. The wheel assembly includes a wheel of the kind that may be mounted to a frame of a bicycle. The wheel assembly also has a spinning component mounted with a bearing on to a hub of the wheel. The spinning component has a plurality of radially extending, angularly-spaced components. The spinning component is set in motion when the wheel turns, and continues spinning for a period of time when the wheel is brought to a stop.
摘要:
A portable refrigerator assembly includes a refrigerator that has a box and a door that is hingedly coupled to the box. A plurality of feet is each coupled to and extends laterally away from the refrigerator for stabilizing the refrigerator on a support surface. A cooling unit is provided and the cooling unit is positioned in the refrigerator such that the cooling unit is in thermal communication with an interior of the refrigerator. In this way the cooling unit can cool the interior of the refrigerator. A pair of warming plates is each coupled to the refrigerator and a food item can be positioned on each of the warming plates. Additionally, each of the warming plates generates heat when the warming plates are turned on to warm the food item.
摘要:
A tetrahedrally shaped pivotable sailing frame of four spars and a sail with balanced hydrofoils is disclosed. A hydrofoil sailboat is created by pivotally attaching the frame to a hull along a longitudinal axis of the hull. Tacking is accomplished by rotation of the frame about that axis. Although the sailing frame can be adapted to a variety of types of hulls, including windsurfers, catamarans, and multiple-hulled craft, a preferred embodiment of a hull is disclosed which in combination with the sailing frame affords the proper lift and forward vectors and obviates the need for a keel, live or dead ballast, or sail adjustments. The lift affords very high speeds and minimal wetted surface. The tetrahedral structure of the sailing frame is stiff, giving a level, stabilized ride and permitting an optimal surface area of sail. The hull design provides swift, easy tacking and reduces the possibility of backwinding.
摘要:
A long lived high current density cathode is made from a mixture of tungs and iridium powders by processing the mixture of powders with an activator into a porous billet, and then impregnating the billet with a chemical mixture of barium oxide, strontium oxide, and aluminum oxide by firing the billet in a dry hydrogen furnace at a temperature at which the impregnant melts.
摘要:
A hydrofoil sailboat with a slender hull and a foil-shaped sail spaced laally therefrom. The hull has one flat side facing the sail and one convex side. The sail is inclined from the vertical toward the hull and is supported at its base ends by a pair of freely swiveling waterskis. The hull supports a rudder at each of its ends, the rudders being hydrofoils with their flat sides facing the sail. The length-to-width ratio of the hull is no less than 5:1 and the inclination of the sail about 30.degree. from the vertical.
摘要:
A system is disclosed in which recovery scenarios in a system for global transaction processing are testable with application programs. A client application program initiates a global transaction that results in multiple service requests to be processed by one or more server application programs. After processing of the service requests is complete, the client application program issues a selected test command that partially performs two-phase commit processing according to a predetermined recovery scenario. Recovery processing is initiated to recover the databases affected by the global transaction Control and status information are then returned to the client application program. After recovery processing is complete, the databases are compared to the expected states according the recovery scenario.
摘要:
A cathode is made from a mixture of tungsten and iridium powders using a ction product formed from reacting barium peroxide with an excess of tungsten as the impregnant.
摘要:
A long life high current density cathode is made from a mixture of tungstennd iridium powders by processing the mixture of powders with an activator into a porous billet, and then impregnating the billet with a low melting point impregnant by firing the billet in a dry hydrogen furnace at a temperature at which the impregnant melts.