摘要:
A semiconductor device includes: a semiconductor base; a hetero semiconductor region which is in contact with the semiconductor base and which has a band gap different from that of the semiconductor base; a first electrode connected to the hetero semiconductor region; and a second electrode forming an ohmic contact to the semiconductor base. The hetero semiconductor region includes a laminated hetero semiconductor region formed by laminating a plurality of semiconductor layers in which crystal alignment is discontinuous at a boundary between at least two layers.
摘要:
A storage device includes an access counter that counts the number of track changes or the number of accessed sectors in accessing the recording medium, an access judgment unit that judges whether the recording medium is accessed successively by a host, a count judgment unit that judges whether the count counted by the access counter has reached a predefined number of times when the access judgment unit judges that the recording medium is accessed successively, and an access delay unit. The access delay unit delays the access to the recording medium so that a transfer rate between the storage device and the host is adjusted to a predefined transfer rate when the count judgment unit judges that the number of the count has reached the predefined number of times.
摘要:
Problem: To provide a microencapsulated color material for an ink composition which is excellent in dispersion stability, ejection stability and color developability, excellent in fastness and rubbing resistance of images, and hard to cause blurs of images, and can provide recorded matter having high print density; an ink composition using the color material; a production process thereof; an ink jet recording process; recorded matter; and microencapsulated matter.Means for Resolution: A surface of a core material including color material particles such as a pigment is covered with a wall material mainly comprising: 1) a polymer (A) having an ionic group and a hydrophobic group; and 2) a polymer (B) having at least; repeating structural units derived from a first polymerizable surfactant having an ionic group with a charge opposite to the charge of the ionic group of the polymer, a hydrophobic group and a polymerizable group; and repeating structural units derived from a second polymerizable surfactant having a charge of the same kind as or opposite to the charge of the first polymerizable surfactant, and/or a hydrophilic monomer having a charge of the same kind as or opposite to the charge of the ionic group of the polymer and/or a hydrophobic monomer, thereby performing microencapsulation. The color material particles such as the pigment are used as the core material, and a color material obtained by microencapsulating them is allowed to be contained in an aqueous medium to form an ink composition, which is ejected from an ink head onto a recording medium by an ink jet recording process, thereby obtaining recorded matter. By constituting the core material by a pharmaceutical preparation, a metal powder, a ceramic or the like, surface modification of the core material becomes possible.
摘要:
A laminate having a layer structure that a carboxyl group-containing polymer layer (A) and a polyvalent metal compound-containing layer (B) are arranged adjacently to each other on at least one side of a polymeric base, wherein the polyvalent metal compound-containing layer (B) contains particles of a polyvalent metal compound, a binder resin and a surfactant, and a production process thereof.
摘要:
A method of manufacturing a semiconductor device is disclosed. The semiconductor device includes a semiconductor body of a first conductivity type, a hetero semiconductor region adjacent to one main surface of the semiconductor body and having a band gap different from that of the semiconductor body, and a gate electrode formed in a junction portion between the hetero semiconductor region and the semiconductor body through a gate insulating film. The method includes a first process of forming a predetermined trench by using a mask layer having a predetermined opening on one main surface side of the semiconductor body, a second process of forming a buried region adjacent to at least a side wall of the trench and so as to extend from the trench, a third process of forming a hetero semiconductor layer so as to adjoin the semiconductor body and the buried region, and a fourth process of forming the hetero semiconductor region by patterning the hetero semiconductor layer.
摘要:
A gasification unit provided with a gasification furnace 23 to produce fuel gas production is provided. A combined power generation unit 25 which generates power by rotating a gas turbine and a steam turbine using fuel gas produced in the gasification unit is provided. The combined power generation unit 25 is made operable while fuel change over between fuel gas and an auxiliary fuel as the fuel. A control system is provided in which the degree of opening of a control valve 37 for a flare stack 28 provided in a fuel gas feed line is controlled depending upon the pressure of the fuel gas from the gasification unit when fuel change over from the fuel gas to the auxiliary fuel so as to allow the fuel gas supplied to the combined power generation unit 25 to gradually flare from a flare stack 28 until a flared status that total amount of the fuel gas is reached.
摘要:
Embodiments of the invention appropriately control the flying height of a magnetic head slider as necessary without making the magnetic head slider touch the magnetic disk. In one embodiment, when a magnetic disk drive is started, the level of electric power predefined for the ordinary temperature (room temperature) is read in from the internal memory of an MPU. A temperature sensor measures the internal temperature of the magnetic disk drive and sends it to the MPU. According to the temperature sent from the temperature sensor, the MPU calculates the level of electric power which should be applied to a flying height adjustment structure. According to the calculated electric power, the MPU increases or decreases the electric power applied to the flying height adjustment structure. At a flying height controlled (corrected) by the flying height adjustment structure, a magnetic head slider performs read/write on a magnetic disk.
摘要:
An obstacle detection system determines a probability distribution of existence of an obstacle object corresponding to a distance in an irradiation direction of a transmission wave based on detected strength data per scanning-angle supplied from a radar device. A peak-value of the strength data becomes a maximum probability of existence of the obstacle. The probability distribution has a range gradually decreasing before and after the peak-value. Even if the position indicated by the maximum probability of existence of the obstacle object is different from an actual distance to the obstacle object, it hardly occurs that the probability of existence at an actual position of the obstacle object becomes zero. This eliminates occurrence of separation/association errors. Primary and secondary existence probability relationships made based on the probability distribution are combined. Using the combined one further decreases the error detection.
摘要:
Embodiment of the invention improve the productivity of a magnetic disk drive that controls the flying height of a magnetic head by use of a heater. According to an embodiment, in a method for manufacturing a magnetic disk drive that writes/reads information to/from a magnetic disk medium by use of a magnetic head including a heater adapted to control the flying height, the read and write performance of the magnetic head is tested; a heating condition used at the time of heating by the heater is determined on the basis of the test results; and a control parameter that specifies the amount of heating by the heater in the determined heating condition is determined.
摘要:
The invention is directed to a film which comprises a poly(carboxylic acid) polymer and a polyvalent metal compound, which is endowed with excellent gas barrier property against, for example oxygen, which has such resistance that the appearance, shape, and gas-barrier properties are not impaired by neutral water, high-temperature water vapor, or hot water; a laminate produced by use of the film; and a process for producing the film or laminate industrially conveniently at low cost. The film or laminate of the present invention is suitable for use as a package, packaging container, or vacuum insulation material for articles which are apt to be deteriorated by oxygen, etc., such as foods, beverages, chemicals, medicines, and metallic precision parts; e.g., electronic parts. Furthermore, there can be provided a packaging material suitable for use with articles which are required to be reliably insulated from gases for prolonged periods and should be treated under high-temperature, hot-water conditions as in boiling or pressurized high-temperature sterilization.