摘要:
A respiratory protection device is provided that allows the wearers of a facepiece to smoothly have a conversation with each other. A respiratory protection device (1) includes a facepiece (10). The protection device (1) also includes a voice amplifier (40) that includes a microphone and a speaker therein, a detection unit that directly or indirectly detects the inner pressure of the facepiece, a power source unit, and a control unit. The control unit controls so as to place the voice amplifier (40) in an operational state or a non-operational state, based on a result of comparison of information from the detection unit with a determination reference in the control unit.
摘要:
A system for decomposing a liquid or gaseous organic compound comprises a ultraviolet decomposition unit and an intermediate product treatment apparatus. The ultraviolet decomposition unit decomposes an organic compound contained in polluted liquid or polluted gas by irradiating ultraviolet rays whose wavelength is less than 300nm to the polluted liquid or the polluted gas containing the organic compound. An acid electrolytic water feed pipe and an alkali electrolytic water feed pipe are respectively connected to the intermediate product treatment apparatus through valves to neutralize an intermediate product, which results from decomposition of the organic compound, for decomposition by selectively adding strong alkali electrolytic water and strong acid electrolytic water to the polluted liquid or the polluted gas containing the intermediate product.
摘要:
A system for decomposing a liquid or gaseous organic compound comprises a ultraviolet decomposition unit and an intermediate product treatment apparatus. The ultraviolet decomposition unit decomposes an organic compound contained in polluted liquid or polluted gas by irradiating ultraviolet rays whose wavelength is less than 300nm to the polluted liquid or the polluted gas containing the organic compound. An acid electrolytic water feed pipe and an alkali electrolytic water feed pipe are respectively connected to the intermediate product treatment apparatus through valves to neutralize an intermediate product, which results from decomposition of the organic compound, for decomposition by selectively adding strong alkali electrolytic water and strong acid electrolytic water to the polluted liquid or the polluted gas containing the intermediate product.
摘要:
A washing apparatus for an endoscope 51 includes a wire brush 31, a region for housing the wire brush and a drive means 57 adapted to advance and retract the wire brush 31. The wire brush 31 is received in a pipe section 56 of the wire housing region so that the wire brush 31 may be selectively advanced out or retracted in this pipe section 56 which is, in turn, provided along its front end portion 56a and a rear end portion 56b with position sensors 67, 68 to detect a position of a wire component 33 of the wire brush 31.
摘要:
A tumor cell growth inhibitor which comprises 10 parts by weight of a low condensate and polymer of an α-hydroxy acid, 1 to 4 parts by weight of an oligopeptide containing at least one pyroglutamic acid residue, and 1 to 3 parts by weight of a stabilizer. Said α-hydroxy acid condensate and polymer mainly comprise a condensate of 2 to 10 molecules of an α-hydroxy acid, a polymer thereof, and metal salts thereof; said oligopeptide comprises an oligopeptide composed of 2 to 8 amino acid residues and containing at least one pyroglutamic acid residue and metal salts thereof; and said stabilizer comprises a sugar and a sugar alcohol.
摘要:
Agents for inhibiting the proliferation of malignant tumour cells are described together with processes for their preparation. Malignant tumour cells are cultivated in a culture medium for a period before being removed therefrom. By means of fractional filtration from the culture medium, that fraction having a molecular weight of not less than 500 is separated. Results show that this fraction has a significant inhibiting effect against proliferation of malignant tumour cells.
摘要:
An agent for inhibiting proliferation of malignant tumour cells is obtained by culturing the malignant tumour cells in a medium and then removing the malignant tumour cells by extraction.
摘要:
Agents for inhibiting the proliferation of malignant tumour cells are described together with processes for their preparation. Malignant tumour cells are cultivated in a culture medium for a period before being removed therefrom. By means of fractional filtration from the culture medium, that fraction having a molecular weight of not less than 500 is separated. Results show that this fraction has a significant inhibiting effect against proliferation of malignant tumour cells.