Abstract: An internal combustion engine inducts no air from outside atmosphere and it discharges no gas into outside environment. The engine receives hydrocarbon fuel and oxygen, and its combustion gas consists mostly of carbon dioxide and water vapor. Carbon dioxide is captured, stored and subsequently sequestered by using it with water to create a hydrocarbon fuel that can be supplied back to the engine. In that way, the engine fuel is repeatedly regenerated and reused, and the engine operates in a carbon neutral mode of operation. Some of the combustion gas is used as a diluent gas in the engine. High specific heat and high density of that gas permit operation in high-efficiency overexpanded cycle without an increase in the engine size. Various methods of the engine control and operation are described, including methods to reduce pumping loss. Various modes of in-cylinder diluent gas formation are considered.

Abstract: A smart electronic personal identification document, including a smart identification module and an automated anti-skimming element. The smart identification module includes a contactless chip module and an antenna. The smart identification module is operative to store and exchange personal identification information contactlessly with an external reader. The automated anti-skimming element is configured for preventing unauthorized theft of the information.

Abstract: A smart electronic personal identification document, including a smart identification module and an automated anti-skimming element. The smart identification module includes a contactless chip module and an antenna. The smart identification module is operative to store and exchange personal identification information contactlessly with an external reader. The automated anti-skimming element is configured for preventing unauthorized theft of the information.

Abstract: The system monitors and controls access and attendance of individuals, and includes an identification means for each individual which are characteristic to said individual; a mobile data collection unit for reading and storing the identification means and transferring it to the controller, a management computer; a first relay system to transmit data regarding an individual from the data collection unit to the management computer; and, a second relay system to transmit data regarding an individual to a remote client.