摘要:
A DC constant voltage circuit comprises a rectifier and a boosting chopper circuit controlled by a general purpose PWM control IC. The general purpose PWM control IC receives a reference voltage Vref which regulates the output voltage by pulse width modulation and produces a voltage having the same waveform and phase as the input current to improve the power factor of the output voltage. An AC constant voltage circuit comprises a common line connecting an AC input terminal and an output terminal, positive and negative boosting chopper circuits for boosting and chopping a half-wave rectified respectively in both positive and negative sides into a DC voltage and a DC-AC inverter for inverting the DC voltage into the AC output voltage. The positive and negative boosting chopper circuits are used as a filter for improving the power factor and adjusting the waveform and phase of the output voltage to be the same as the sine full waveform of the input voltage.
摘要:
An electromagnetic switchgear wherein an eyelet is used to secure an external terminal at a lead hole for use in leading lead conductors of coils to the outside, wherein the lead conductors of the coils are led out of the eyelet, and wherein the lead conductors of the coils, the eyelet and the external terminal are connected together, characterized by applying a tap or protrusion between the interior of the eyelet and the ends of the lead conductors of the coils in order to connect them with solder.
摘要:
The invention provides a novel method for controlling various kinds of pests harmful against sanitation and agriculture by applying an organosilicon compound, never used hitherto for such a purpose, to the body of the pest or distributing the compound over the site or field infested therewith. The organosilicon compound which is an organosilane or organopolysiloxane compound, is characterized by at least one (poly)oxyalkylene group bonded to the silicon atom in a molecule and advantageously has no toxicity against human body.
摘要:
A plurality of magnetic pole bodies, provided on a stator of a steering motor, are divided into two electrically independent groups. Each group includes i) six magnetic pole bodies that are arranged in succession and ii) a corresponding number of magnetic pole bodies arranged opposing those six magnetic pole bodies. The two groups vibrate only slightly when operating normally. However, if one of the groups fails, vibration of the stator from elastic deformation in an undulating manner in the circumferential direction will increase, thereby alerting the driver of an abnormality in the steering motor. This increases the likelihood of measures being taken promptly to fix the abnormality in the steering motor, thus improving fail-safe performance.
摘要:
One or a plurality of prime numbers pi which are generated and a generated random number are used to calculate a larger prime number candidate, and a judgment is made as to whether or not the prime number candidate is a prime number by using a provable prime number judging method, and when the judgment is made that the candidate is a prime number, the prime number p is outputted. As for at least three polynomials F(p) which are factors of ps−1 (s: arbitrary natural number) by a prime number p, a measure against prime factorization is taken. Moreover, when the prime number p is used for a secret key of RSA cryptosystem, a strong prime number p against the iterated-encryption attack on RSA cryptosystem is generated.
摘要:
In a lure, a mechanism is provided for moving and holding a balance-weight having a lip (2) mounted at a front end portion of a lure body (1) and a balance-weight (9) incorporated in the lure body (1). The balance-weight (9) is adopted to be movable along a longitudinal direction of the lure body (1). The balance-weight (9) moves along a longitudinal direction of the lure body (1) by rolling along a guide (10). The guide (10) has a pocket (10a) provided at a front end portion thereof. The balance-weight (9) can be held within the pocket (10a).
摘要:
A plurality of control channels different frequency is used at equal frequencies to couple a base unit and radio communication terminal unit. A radio communication device uses the plurality of control channels sequentially or at equal frequencies by switching operations to thereby transmit and/or receive information on talking channels, etc. When a particular control channel is occupied for a long time due to cross talk, etc., another control channel is selected for telephone communication purposes.
摘要:
The invention provides a novel method for controlling various kinds of pests harmful against sanitation and agriculture by applying an organosilicon compound, never used hitherto for such a purpose, to the body of the pest or distributing the organosilicon compound over the site or field infested therewith. The organosilicon compound is a cyclic organopolysiloxane compound represented by the general formula ##STR1## in which each of the groups R is a hydrogen atom or a monovalent hydrocarbon group independently from the others, at least one of the groups denoted by R in a molecule being a monovalent hydrocarbon group, and n is an integer in the range from 3 to 7.