Abstract: In an ultrasonic liquid atomizer, an oscillator has a transistor and a resonant circuit a part of which is formed by a piezoelectric vibrator mounted in an energy transfer relationship with liquid in a chamber. The transistor and the resonant circuit receive a full-wave rectified supply voltage to generate ultrasonic energy in the vibrator in the presence of a bias voltage. A soft start circuit has a time constant circuit responsive to the bias voltage and a transistor responsive to an output of the time constant circuit which provides switching action in phase with the full-wave rectified supply voltage so that ultrasonic energy is generated in the form of a series of bursts having durations gradually increasing as a function of time during an initial brief interval from application of the bias voltage to the oscillator.

Abstract: In an apparatus having an insulative substrate, a power circuit is mounted on one surface of the substrate and connected to receive power from a mains supply for rectifying the AC energy of the supply and supplying the rectified energy to a pair of power lines. A high frequency source is mounted on the same surface as the power circuit and electrically connected to the power lines for converting the rectified energy into oscillation energy. A shield casing, which is electrically connected to one of the power lines which is lower in impedance than the other, encases the high frequency source. A conductor, printed on the other surface of the substrate, is substantially aligned with a portion of the shield casing which is positioned between the power circuit and the high frequency source, the conductor being electrically connected to the power line having the lower impedance to suppress radiation which would otherwise leak through a gap between the shield casing and the substrate.

Abstract: Novel heterocyclic compounds shown by the formula ##STR1## wherein Het represents a 5-membered or 6-membered heterocyclic group which may have substituent(s); Z represents a sulfur atom or oxygen atom; X represents an oxygen atom or the unsubstituted or substituted imino group shown by N--R.sub.1 (wherein R.sub.

Abstract: Novel guanidinothiazole compounds of the general formula ##STR1## wherein R represents a hydrogen atom or a lower alkyl group, Y represents a sulfur atom or a methylene group, m and n each represents an integer of 1-3, A represents the group shown by ##STR2## (wherein R.sub.1 represents a hydrogen atom, a cyano group, a carbamoyl group, a ureido group, a hydroxyl group, a lower alkoxy group, a lower acyl group, an acylamino group, an arylsulfamoyl group, an aralkyl group or a carboxymethyl group, an arylsulfamoyl group, an aralkyl group or a carboxymethyl group, R.sub.2 represents a hydrogen atom, a lower alkyl group, a lower alkenyl group, a lower alkynyl group, a cyano group or a lower acyl group, and R.sub.3 represents a hydrogen atom, a lower alkyl group, a hydroxyl group or a sulfamoyl group), and the pharmacologically acceptable acid addition salts thereof; these compounds are useful as gastric acid secretion inhibitors.

Abstract: In a Fourier transform nuclear magnetic resonance spectrometer, as is known, a pulse modulated radio frequency is applied to a sample placed in a magnetic field, and a free induction decay signal resulting from the above application is Fourier transformed to obtain a nuclear magnetic resonance spectrum. In such a spectrometer, a material having a predetermined resonance peak, for example, tetramethylsilane is used as a reference sample, and the center frequency of the pulse modulated radio frequency is successively varied while maintaining a constant magnetic field intensity. The position of peak of tetramethylsilane in frequency spectra thus obtained is varied with the change of the center frequency. By measuring successively the signal strength of the peak, there can be obtained a frequency characteristic of a receiving system employed in the spectrometer, which is used to obtain correction coefficients of the receiving system.

Abstract: Novel guanidinothiazole compounds of the general formula ##STR1## wherein R represents a hydrogen atom or a lower alkyl group, R.sub.1 represents an amino group, a lower alkyl group, a halogeno lower alkyl group, a substituted- or unsubstituted-aryl group, a mono- or di-lower alkylamino group, an arylamino group or an aralkylamino group, R.sub.2 represents a hydrogen atom, a lower alkyl group, a lower alkenyl group or a lower alkynyl group, Y represents a sulfur atom or a methylene group, m and n, each represents an integer of 1-3, and the pharmacologically acceptable acid addition salts thereof, they are useful as gastric acid secretion inhibitors.

Abstract: Novel heterocyclic compounds shown by the formula ##STR1## wherein Het represents a 5-membered or 6-membered heterocyclic group which may have substituent(s); Z represents a sulfur atom or oxygen atom; X represents an oxygen atom or the unsubstituted or substituted imino group shown by N--R.sub.1 (wherein R.sub.

Abstract: The compounds of this invention are strong central nervous system depressants, in particular strong antipsychotics.

Abstract: The compounds of this invention are strong central nervous system depressants, in particular strong antipsychotics.

Abstract: Pyrazine derivatives by the formula ##STR1## are disclosed. In the above formula, R.sup.1 and R.sup.2, which may be the same or different, each represents a hydrogen atom, a halogen atom, a hydroxy group, a lower alkoxy group, a phenyl lower alkoxy group, a phenoxy group, a mercapto group, a lower alkylthio group, a phenyl lower alkylthio group, a phenylthio group, an amino group, a substituted amino group, a lower alkyl group, a carbamoyl group or a sulfamoyl group; R.sup.3 represents a lower alkoxy group; R.sup.4, R.sup.5, and R.sup.6, which may be the same or different, each represents a hydrogen atom, a lower alkyl group, a cycloalkyl group, a phenyl lower alkyl group, or a phenyl group; and A represents a lower alkylene group; said R.sup.4 and A, said R.sup.5 and A, said R.sup.4 and R.sup.5, or said R.sup.5 and R.sup.