摘要:
A liquid precursor containing a metal is applied to a substrate, RTP baked, and annealed to form a layered superlattice material. Special polyoxyalkylated precursor solutions are designed to optimize polarizability of the corresponding metal oxide materials by adding dopants including stoichiometric excess amounts of bismuth and tantalum. The RTP baking process is especially beneficial in optimizing the polarizability of the resultant metal oxide.
摘要:
A number of embodiments of induction systems for multiple valve internal combustion engines wherein the performance of the engine is improved throughout the engine speed and load ranges by providing variable effective areas for the induction passages. The embodiments disclosed all relate to three intake valve engines and show a number of different variations in intake passages. In all embodiments an EGR system is employed for improving exhaust emission control.
摘要:
This invention relates to peptide derivatives of the formula ##STR1## or salts thereof, wherein: (a) Q.sub.1 represents a 1-dimethylamino-2-methylpropyl group and Q.sub.2 represents an (R)- or (S)-2-hydroxy-2-phenylethylamino group, a 2-phenylcyclopropylamino group or a 1,2,3,4-tetrahydroisoquinolin-2-yl group, or (b) Q.sub.1 represents a 1-methyl-2-pyrrolidinyl group and Q.sub.2 represents ##STR2##
摘要:
An improved feedback control system for an engine that employs only a single sensor associated with only one cylinder of the engine. Cylinder-to-cylinder adjustments are made based upon measurement of the differences in crankshaft speed during a portion of the compression stroke for each cylinder so as to provide an accurate indication of air flow to the individual cylinders.
摘要:
A peptide derivative represented by the following formula or a salt thereof ##STR1## wherein A and B each represent either of the following (a) and (b), (a) A represents a hydrogen atom, and B represents a phenyl group substituted with a halogen atom, hydroxyl group, lower alkyl group or lower alkoxy group, or a heteroaryl group, (b) A represents --CONH--R.sup.1, --CSNH--R.sup.1, a hydroxymethyl group, a lower alkoxycarbonyl group or a carboxyl group, wherein, R.sup.1 represents a lower alkyl group or a heteroaryl group, and B represents a phenyl group optionally substituted with a halogen atom, hydroxyl group, lower alkyl group or lower alkoxy group, has an antitumor activity stronger than that of dolastatin 10, and is useful as an anticancer or antitumor agent.
摘要:
A thin-film zinc oxide varistor (10) for use in integrated circuits and the like is produced by applying a polyoxyalkylated metal complex, such as a metal alkoxycarboxylate, to a substrate (12, 14, and 16) for the formation of a dried nonohmic layer (18). The method of production includes the steps of providing a substrate and a precursor solution including a polyoxyalkylated zinc complex (P22, P24), coating a portion of the substrate with the precursor solution (P26), drying the coated substrate (P32), and crystallizing the dried thin-film zinc oxide layer (P30). The resultant crystalline zinc oxide varistor layer (18) may be doped with bismuth, yttrium, praseodymium, cobalt, antimony, manganese, silicon, chromium, titanium, potassium, dysprosium, cesium, cerium, and iron to provide a non-ohmic varistor. The varistor layer (10) is annealed at a temperature ranging from about 400 to about 1000.degree. C. to provide a layer having a thickness ranging from about 50 nanometers to about 500 nanometers and an average grain size diameter less than about 200 nanometers.
摘要:
A mobile object positioning system includes a GPS signal receiver for receiving positioning radio signals from a plurality of satellites, calculating a present location of a mobile object in accordance with the positioning radio signal and outputting present location data at each of a plurality of calculating times. An electronic controller is provided for updating the present location data at each calculating time, storing the present location data, estimating an error of the present location data in accordance with the positioning radio signals and outputting error data at each estimating time. A vehicle velocity sensor is disposed on the mobile object for detecting the velocity of the moving mobile object and outputting a mobile velocity signal. The electronic controller determines a stationary condition of the mobile object in accordance with the mobile velocity signal and prohibits updating the present location data when a stationary condition of the mobile object is determined and a value of the error data at a present estimating time is larger than that at a last previous estimating time.
摘要:
A power window apparatus is controlled by comparing present rotational frequency of a motor with a reference value selected depending on a present position of a window glass among plural reference values predetermined at every position of the window glass, supplying an electric current to the motor in the closing direction of a window when the present rotational frequency of the motor is larger than selected reference value, supplying the electric current to the motor in the opening direction of the window when the present rotational frequency is not larger than the selected reference value and the window glass does not arrive in a full-closed position, and cutting the current supply to the motor when the present rotational frequency is not larger than the selected reference value and the window glass arrives in the full-closed position.
摘要:
An optical recording and reproducing apparatus uses a laser to form one or more spots on an information recording medium preformatted with wobbling guide grooves, and detects tracking error. If the differential push-pull method of detecting tracking error is used, a center spot is flanked by satellite spots distant by an odd multiple of half time repeating period of tile wobble. If tile three-beam method is used, the distance is an odd multiple of one-fourth the repeating period of the wobble. If the push-pull method is used, a split photodetector generates a pair of electrical signals. The sum and difference of these signals are filtered, then synchronously detected, and the result is combined with the difference signal to generate a corrected tracking error signal.
摘要:
A negative feedback amplifier including, in an input stage, a common-emitter first transistor and a common-base second transistor for supplying a quiescent collector current (standing current) to the first transistor so that a sufficient standing current flows. A negative feedback circuit is connected between an output terminal of an output stage and the emitter of the second transistor, and a first limiter diode is parallely connected to the feedback circuit so as to prevent saturation of an NPN transistor of the output stage. The common-base transistor in the input stage makes it possible to select a high resistance resistor as a feedback resistor, thus enabling the standing current of the output stage to be reduced. A second limiter diode may be connected between the output terminal and the input terminal of the output stage.