Abstract:
PROBLEM TO BE SOLVED: To develop a reactive material having high penetration potential and capable of being safely worked at a temperature lower than 350-390°C, the temperature required for working PTFE (polytetrafluoroethylene), from a view point of problems of working and safety of a Ta/PTFE reactive material and a W/PTFE reactive material. SOLUTION: A composition for the reactive material has a high fluorine content and comprises an oxidizing agent, which has a melting temperature substantially lower the thermal autoignition temperature of the reactive material, and at least one kind of metal fillers. The reactive material is worked at a temperature remarkably lower than the thermal autoignition point thereof. COPYRIGHT: (C)2004,JPO
Abstract:
PURPOSE: To compensate drift and to always secure high quality reproduction by detecting luminance changes that are caused by drift in video which occurs due to a temperature change and a change with the passage of time, changing voltage that is added to a 2nd grid and controlling video luminance to a pre scribed value. CONSTITUTION: A counting amplifier 110 outputs an output that corresponds to a cathode current IK from electric potential of a detection resistance 86, and an A/D converter 120 converts the output and adds it to a microcomputer(MC) 124. The MC 124 performs various arithmetic calculations and controls and decides the voltage of a 1st grid 74 and a cathode 72 through a control register 128, and amplifiers 132 and 136 with 1st and 2nd outputs. At the same time, after a D/A converter 158 has converted a 3rd output from the MC 124, an amplifier 160 amplifies it and supplies an appropriate bias signal to a 2nd grid 76. Through this, video luminance is controlled to a prescribed value, a drift that is caused by the temperature change and the change with the passage of time is compensated, and high quality reproduction is always secured.
Abstract:
Methods and systems of providing a source of hydrogen and oxygen with high volumetric energy density, as well as a power systems useful in non-air breathing engines such as those in, for example, submersible vehicles, is disclosed. A hydride reactor may be utilized in forming hydrogen from a metal hydride and a peroxide reactor may be utilized in forming oxygen from hydrogen peroxide. The high temperature hydrogen and oxygen may be converted to water using a solid oxide fuel cell, which serves as a power source. The power generation system may have an increased energy density in comparison to conventional batteries. Heat produced by exothermic reactions in the hydride reactor and the peroxide reactor may be transferred and utilized in other aspects of the power generation system. High temperature water produced during by the peroxide reactor may be used to fuel the hydride reactor.
Abstract:
The present invention provides O-nitro compound, pharmaceutical compositions of O-nitro compounds and methods of using O-nitro compounds and/or pharmaceutical compositions thereof to treat or prevent diseases or disorders characterized by abnormal cell proliferation, such as cancer, inflammation, cardiovascular disease and autoimmune disease.
Abstract:
Provided herein are methods and systems of producing hydrogen using ammonia borane, which has a high hydrogen density while being stable and easily stored. Ammonia borane may be exothermically reacted with a strong oxidizer, such as a mixture of hydrogen peroxide and water. The reaction between ammonia borane and the strong oxidizer may occur spontaneously and may produce heat. Unreacted ammonia borane may be exposed to and thermally decomposed using the heat produced during the exothermic reaction between ammonia borane and the strong oxidizer. The heat may be retained by performing the reactions in a vessel or reactor including a material capable of retaining the heat. A high gravimetric hydrogen yield is obtained from the reaction of ammonia borane with hydrogen peroxide and the thermal decomposition of unreacted ammonia borane. Hydrogen production using the methods and systems may yield a high gravimetric hydrogen content of at least about 10%.
Abstract:
PROBLEM TO BE SOLVED: To provide rockets, rocket motors, methods of controlling a rocket and methods of evaluating a rocket design.SOLUTION: In some embodiments, a method of controlling a rocket can include measuring a combustion chamber pressure, calculating a logarithm of the measured combustion chamber pressure, and computing the difference between the logarithm of the measured combustion chamber pressure and the logarithm of a reference combustion chamber pressure value to generate an error signal. The method can further include filtering the error signal to generate a compensated signal in the logarithm domain, and exponentiating of the compensated signal in the logarithm domain to provide a compensated signal in the physical domain.
Abstract:
PROBLEM TO BE SOLVED: To provide an automated bias-ply preparation device and a method.SOLUTION: The material preparation device 100 includes a bias-ply assembly 105, a raw-material assembly 103 and an application head 130. The bias-ply assembly 105 passes a bias-ply backing material 146 along a first path. The raw-material assembly 103 passes a raw-material along a second path that crosses the first path at a select angle. The raw-material includes a resin pre-impregnated fiber reinforced material (pre-preg) having fibers at a first orientation relative to an edge of the raw-material. The application head 130 is transfers the pre-preg from the raw-material to the bias-ply backing material 146 at a location where the first path crosses the second path to form a bias-ply 158 with the fibers of the pre-preg having a second different orientation relative to an edge of the formed bias-ply 158.