摘要:
A motor controller includes: a motor control part for driving and controlling a motor; an estimated temperature computing part for computing an estimated temperature of a winding of the motor; and a motor protecting part for protecting the motor from being burned when the estimated temperature becomes larger than a predetermined temperature. A temperature rise value of the estimated temperature is computed according to operating conditions of the motor at the time of passing electric current through the winding. This temperature rise value is added to an estimated temperature stored in the estimated temperature storing part to update the estimate temperature. To compute the temperature rise value, an optimum temperature rise value is computed by the use of a plurality of temperature-rise value computing expressions.
摘要:
A wooden casing is provided with a conductive pattern formed on the surface of the wooden material by carbonizing the surface thereof. A method for processing a surface of a wooden material, is provided with the steps of carbonizing the surface of the wooden material, and compressing the wooden material.
摘要:
A process cartridge detachably mountable to a main assembly of an apparatus, includes a drum, a developing member, a cartridge frame including a developer accommodating portion, a first light guide adjacent one end of the cartridge frame and a leading end with respect to a cartridge mounting direction and including a light entrance portion opposed to an emitting portion to receive detecting light when the process cartridge is mounted to the main assembly and guiding the detecting light to cross with a developer accommodating space in the developer accommodating container, a second light guide adjacent the one end and the leading end, and including a light exit portion and directing, the detecting light having passed through the developer accommodating space to the light receiving portion, and a memory member communicatable with the main assembly and adjacent the one end o and the leading and including a cartridge electrical contact.
摘要:
A motor control apparatus for controlling an operation of an electric motor has an operational temperature estimator and an operation controller. The operational temperature estimator estimates an estimated temperature of the electric motor. The operation controller disables to start the operation of the electric motor while the estimated temperature is within a predetermined operation start disable range, and enables to continue the operation of the electric motor when the estimated temperature increases into the operation start disable range.
摘要:
A first oxide film and a second oxide film 16 are formed in a first region 13a and a second region 13b, respectively, on the surface of the semiconductor substrate 10, via thermal oxidization method, and the first oxide film is removed while the second oxide film 16 is covered with the resist layer 18 formed thereon, and then the resist layer 18 is removed with a chemical solution containing an organic solvent such as isopropyl alcohol as a main component. Subsequently, a third oxide film 22 having different thickness than the second oxide film 16 is formed in the first region 13a.
摘要:
An output voltage proportional to a duty ratio of a PWM signal can be obtained without using a large-scale circuit, even when a high potential (input potential) of an inverter is low. The digital to analog converter includes a CMOS inverter where a PWM signal generated from a pulse width modulation circuit is inputted, and a low-pass filer supplied with an output of a CMOS inverter. The CMOS inverter includes a P-channel type first MOS transistor and a N-channel type second MOS transistor connected in serial between an input potential and a ground potential, where the PWM signal is applied to each of gates, and an N-channel type third MOS transistor connected with the P-channel type first MOS transistor in parallel and forming a CMOS transmission gate together with the P-channel type first MOS transistor.
摘要:
The invention relates to a connecting member for covering members for forming a casing of an electronic device. The connecting member is a connecting member by which an end portion of a plurality of covering members is connected, including a covering member of which at least the end portion to be connected is made of a wooden material; and having at least one of an end holding portion and a side guide portion for connecting the covering members, the end holding portion being provided so that the end holding portion holds the top end of the end portion of each of the covering members, and, the side guide portion being provided along a side surface in a thickness direction of the end portion of each of the covering members.
摘要:
At a stage before manufacture (product design stage or manufacturing process design stage), influence of defect occurrence in a component or process on other components and processes is estimated, and defect importance is evaluated to support the manufacturing process design. Failure rates of components are previously stored in a database. At a product design stage, an assembly fraction defective is calculated for an assembly process of each component of the product. Component arrangement relations are extracted from product design information. A component fraction defective is calculated based on the assembly fraction defective and the component failure rate. A numerical value indicating an influence degree of each assembly process is calculated by multiplying component fraction defectives by coefficients based on of the component arrangement relations and the component fraction defective, for relating components in each assembly process. Thereby, influence degrees of each component and process are evaluated.
摘要:
There is provided a deceleration control apparatus for an automotive vehicle, including a target vehicle speed calculation unit that calculates a target vehicle speed and a deceleration control unit that performs deceleration control on the vehicle so that the vehicle reaches the target vehicle speed. The target vehicle speed calculation unit has a first target vehicle speed calculating section to give as the target vehicle speed a first target vehicle speed value by dividing a multiplication product of an estimated road friction coefficient and a predetermined target lateral acceleration limit by a determined actual yaw rate, and a target vehicle speed correcting section to correct the target vehicle speed depending on an accelerator pedal depression and a detected actual lateral acceleration, so as to adjust the amount of deceleration control on the vehicle.
摘要:
A method for separation of actinide elements comprising feeding a solution containing actinide elements such as americium, curium, californium and the like, into a resin column in which a weakly basic primary, secondary or tertiary anion exchange resin obtained by resinifying pyridine, imidazole or alkylamine has been packed, and then feeding an eluent of a mixed solution of nitric acid and alkyl alcohol such as methanol, ethanol, propanol and the like into the resin column to chromatographically separate the actinide elements from each other. This method makes it possible to efficiently separate the actinide elements from each other by a unit operation at ordinary temperature and ordinary pressure while avoiding oxidation operation, and hence makes it possible to avoid generation of secondary wastes and operations difficult in terms of engineering, such as precipitation.