摘要:
A process for recovering a high-purity L-amino acid from a fermentation liquor obtained by fermentation or an enzymic method, which comprises removing the impurities contained in said fermentation liquor by passing said fermentation liquor through an ultrafilter membrane and then through an ion-exchange or adsorbent resin; concentrating or cooling the effluent thus obtained to result in crystallization of said L-amino acid, and isolation said crystalline L-amino acid from said fermentation liquor.
摘要:
An electron emission device comprises an electron emission electrode with a pointed end and a counter electrode positioned opposite to the pointed end, both formed by fine working of a conductive layer laminated on an insulating substrate.
摘要:
A method for recovery of optically active tryptophane, which comprises filtering a solution of optically active tryptophane containing impurities through a semi-permeable membrane; adding a lower alcohol or a ketone to the filtrate; maintaining the solution containing the lower alcohol or ketone at an alkaline pH and a temperature higher than the .alpha./.beta. crystalline transition point; adding acid to the solution, thereby causing crystals of optically active tryptophane to form in the solution; and separating the crystals from the solution containing impurities, is disclosed. This method avoids the use of resins in the purification steps.
摘要:
To prevent a reduction in engine load detection accuracy due to variations in reluctor size within mass production tolerances, an engine control unit includes a pulse generator PC that detects a reluctor to output crank pulses. An angular velocity calculating unit calculates a first crank angular velocity on the basis of an interval between two crank pulses output in a predetermined section near compression top dead center TDC, and detects near overlap top dead center OLP the same reluctor used for calculating the first crank angular velocity to calculate a second crank angular velocity on the basis of an interval between generated two crank pulses. An engine load estimating unit calculates, as an engine load, a difference between the first crank angular velocity and the second crank angular velocity. The engine load is indicated mean effective pressure over a whole cycle including negative work done by the engine.
摘要:
An ignition timing setting apparatus includes a pulse generator for generating crank pulses corresponding to crank angles, a crank angular speed variation calculating section for calculating a crank angular speed variation based on an interval of the crank pulses, an engine load estimating section for estimating an indicated mean effective pressure from the crank angular speed variation, and an ignition timing determining section having an ignition timing control map for determining an ignition timing advance quantity in accordance with the estimated indicated mean effective pressure and an engine temperature or an engine speed. Such ignition timing setting apparatus sets appropriate ignition timings for avoiding a knocking occurrence load range based on an accurate estimated engine load.
摘要:
An air-fuel ratio estimating device can include an amount of fuel injected calculating unit which can estimate the amount of fuel injected GF for each cycle on the basis of a driving time Tout of a fuel injection valve. A proportional constant calculating section determines a proportional constant K, using the estimated charging efficiency CE and the amount of fuel injected Gf, when the output value of a sensor is in a transition region R. When the sensor output value is not in the transition region R, an air-fuel ratio A/F is estimated from the determined proportional constant K, a charging efficiency CE calculated by a calculating section, and the amount of fuel injected Gf.
摘要:
Provided is a read circuit for a semiconductor memory device which may have a reduced circuit scale, and a semiconductor memory device. In a plurality of sense amplifiers of the read circuit of the semiconductor memory device, for serially reading data from a serial output terminal, if a number of byte selectors which may be selected to determine an address at a predetermined time before determination of the address is four, only four sense amplifiers are required in total, and hence the read circuit and the semiconductor memory device are reduced in circuit scale.
摘要:
An image forming apparatus includes a recording head, a main tank, a sub tank, a negative pressure state indicator, a position detector, and a sub tank position indicator. The recording head discharges recording liquid. The main tank supplies the recording liquid. The sub tank is supplied with the recording liquid from the main tank and supplies the recording liquid to the recording head. The negative pressure state indicator is displaced according to a negative pressure state of the sub tank to indicate the negative pressure state of the sub tank. The position detector detects the displacement of the negative pressure state indicator as position information. The sub tank position indicator is detected by the position detector and indicates a position of the sub tank without being displaced according to the negative pressure state of the sub tank.
摘要:
Meal menu data suitable for each patient is created as a combination of a plurality of types of meal according to the symptom, actual condition, or preference and provided to the patient or alliance restaurants. An information processing system for meal management comprises medical institution network servers interconnected through a bidirectional information communication network, restaurant servers, patient data processors, and a center server. The center server includes meal restriction information storage means for storing meal restriction information created according to electronic medical record information on each patient provided from the medical institution network server for each patient ID number, means for creating meal menu information served in the restaurants corresponding to the electronic medical record information or the meal restriction information on the patient according to the meal restriction information for each patient ID number and means for distributing the meal menu information to the restaurant servers and the patient data processors through the bidirectional information communication network.
摘要:
A method and an apparatus of manufacturing an image displaying apparatus having an electron source substrate and a phosphor substrate. The electron source substrate is provided with an electron emitting element formed by covering with a container and by applying a voltage to an electronic conductor on the substrate. While, the phosphor substrate is provided with a phosphor thereon. The substrates are subjected to a getter processing and to a seal bonding process under a vacuum condition through a processing chamber, to complete an image forming apparatus. An improvement resides in miniaturizing and simplifying operation, and in greater manufacture speed and mass production.