摘要:
The invention provides a piezoelectric polymer material comprising a helical chiral polymer having a weight average molecular weight of from 50,000 to 1,000,000 and optical activity, the piezoelectric polymer material having: crystallinity as obtained by a DSC method of from 20% to 80%; a transmission haze with respect to visible light of 50% or less; and a product of the crystallinity and a standardized molecular orientation MORc, which is measured with a microwave transmission-type molecular orientation meter at a reference thickness of 50 μm, of from 40 to 700.
摘要:
The invention provides a piezoelectric polymer material comprising a helical chiral polymer having a weight average molecular weight of from 50,000 to 1,000,000 and optical activity, the piezoelectric polymer material having: crystallinity as obtained by a DSC method of from 20% to 80%; a transmission haze with respect to visible light of 50% or less; and a product of the crystallinity and a standardized molecular orientation MORc, which is measured with a microwave transmission-type molecular orientation meter at a reference thickness of 50 μm, of from 40 to 700.
摘要:
The invention provides a piezoelectric polymer material including a helical chiral polymer having a weight average molecular weight of from 50,000 to 1,000,000 and having optical activity, the piezoelectric polymer material having a piezoelectric constant d14 at 25° C. of 10 pC/N or more, a degree of crystallinity obtained by X-ray diffraction of from 40% to 80%, and a haze of from 0.5 to 30.
摘要:
The invention provides a piezoelectric polymer material including a helical chiral polymer having a weight average molecular weight of from 50,000 to 1,000,000 and having optical activity, the piezoelectric polymer material having a piezoelectric constant d14 at 25° C. of 10 pC/N or more, a degree of crystallinity obtained by X-ray diffraction of from 40% to 80%, and a haze of from 0.5 to 30.
摘要:
The ice prevention system of the present invention utilizes, in combination, a de-ice subsystem and anti-ice subsystem in a new configuration on an aircraft with engines located behind its wings. Depending on the vertical location of the engines with respect to the wings, the anti-ice subsystem is configured on an upper or lower portion of a leading edge of the wings. If the engine is located above the wing, the anti-ice system is configured only on a section of the wing aligned with the engine and only on the upper portion of the leading edge. If the engine is located below the wing, the placement of anti-ice system is reversed. The de-ice subsystem is configured on the opposite portion of the leading edge adjacent to the anti-ice subsystem and on the remainder of the leading edge of the wing.
摘要:
A fuel cell system 100 includes: a fuel cell 1 for generating a power by causing an electrochemical reaction between an oxidant gas supplied to an oxidant electrode 34 and a fuel gas supplied to a fuel electrode 67; a fuel gas supplier HS for supplying the fuel gas to the fuel electrode 67; and a controller 40 for controlling the fuel gas supplier HS to thereby supply the fuel gas to the fuel electrode 67, the controller 40 being configured to implement a pressure change when an outlet of the fuel electrode 67 side is closed, wherein based on a first pressure change pattern for implementing the pressure change at a first pressure width API, the controller 40 periodically changes a pressure of the fuel gas at the fuel electrode 67.
摘要:
In a triterpenic acid having hydroxyl groups, at least one of the hydroxyl groups is phosphorylated to produce a phosphorylated triterpenic acid and/or a salt thereof, thereby improving the solubility of the triterpenic acid in a preparation for external application for the skin and allowing the physiological activity of the triterpenic acid to be exerted satisfactorily. The phosphorylated triterpenic acid is preferably, for example, ursolic acid phosphate and/or a salt thereof. The preparation for external application for the skin is preferably a cosmetic, particularly preferably a quasi-drug.
摘要:
The present invention provides a fuel cell system having means for controlling the flow of coolant within a fuel cell system. A desirable rate of flow of coolant is created, during power generation, by determining the difference in temperature between coolant flowing into individual cell sets of the fuel cell assembly and the temperature of coolant exhausted from the cell assembly. The fuel cell system features controls adapted to evaluate the heat generation state of each fuel cell set and to regulate the temperature of cell sets by controlling the rate circulation of the coolant.
摘要:
A method of manufacturing a CMOS semiconductor device able to reduce the effective thickness of the gate insulating film and able to secure stable performance is provided. The method in one embodiment comprises the steps of: forming a polycrystalline silicon film on a gate insulating film; introducing an n-type impurity into the polycrystalline silicon film in an nMOS formation region before gate processing of the polycrystalline silicon film; performing heat treatment so that the impurity diffuses in the polycrystalline silicon film and is activated; and patterning the polycrystalline silicon to form a gate pattern before introducing an impurity into the polycrystalline silicon film at a pMOS formation region.
摘要:
A tunneling insulating film is formed on the partial surface area of a semiconductor substrate. A floating gate electrode is formed on the tunneling insulating film. A gate insulating film covers the side wall of the floating gate electrode and a partial surface area of the semiconductor substrate on both sides of the floating gate electrode. A first control gate electrode is disposed on the gate insulating film over the side wall of the floating gate electrode and over a partial surface area of the semiconductor substrate on both sides of the floating gate electrode. A pair of impurity doped regions is formed in a surface layer of the semiconductor substrate on both sides of a gate structure including the floating gate structure and first control gate structure.