摘要:
Provided is a novel lactic acid bacterium strain which is capable of suppressing production of volatile sulfur compounds by oral bacteria, has no cariogenicity and no causative role in infective endocarditis, and is safe in an oral cavity, and provided is an agent for preventing, improving and/or treating oral diseases and discomforts by use of the bacterial strain.An agent for preventing and/or treating an oral disease, containing, as an active ingredient, at least one lactic acid bacterium selected from Lactobacillus crispatus, Lactobacillus fermentum, Lactobacillus gasseri, and Streptococcus mitis and having all of the following properties (1) to (6): (1) having no ability to produce a volatile sulfur compound (VSC); (2) having no ability to produce water-insoluble glucan; (3) having adhesiveness to a tooth surface and/or an oral cell; (4) having a growth inhibitory effect on a bad breath-causing bacterium and/or a periodontal pathogen; (5) having no causative role in infective endocarditis; and (6) having no cariogenicity.
摘要:
Provided is a novel lactic acid bacterium strain which is capable of suppressing production of volatile sulfur compounds by oral bacteria, has no cariogenicity and no causative role in infective endocarditis, and is safe in an oral cavity, and provided is an agent for preventing, improving and/or treating oral diseases and discomforts by use of the bacterial strain.An agent for preventing and/or treating an oral disease, containing, as an active ingredient, at least one lactic acid bacterium selected from Lactobacillus crispatus, Lactobacillus fermentum, Lactobacillus gasseri, and Streptococcus mitis and having all of the following properties (1) to (6): (1) having no ability to produce a volatile sulfur compound (VSC); (2) having no ability to produce water-insoluble glucan; (3) having adhesiveness to a tooth surface and/or an oral cell; (4) having a growth inhibitory effect on a bad breath-causing bacterium and/or a periodontal pathogen; (5) having no causative role in infective endocarditis; and (6) having no cariogenicity.
摘要:
A device and method for determining whether a malfunction is present in a drive circuit, which drives an electric device that generates counter-electromotive force, when all gates in the switching elements of the drive circuit are blocked. After the gates are blocked, the temperature of the switching elements is monitored and the presence of a malfunction is determined based on the detected temperature of the switching elements. A malfunction is determined to be present when the detected temperature equals or exceeds a predetermined temperature; the change in the detected temperature equals or exceeds a predetermined value; or the rate of change in the detected temperature equals or exceeds than a predetermined rate. Thus, it can be appropriately determined whether the gates in the drive circuit are appropriately blocked and minimize the influence of any malfunctions on other elements outside of the drive circuit.
摘要:
External skin preparations containing one or more members selected from among a fermentation product, which is obtained by treating a bean extract with a microorganism, vitamin A and its derivatives. By potentiating skin cells and accelerating the production of hyaluronic acid, these preparations exert effects of preventing and relieving skin roughness, improving keratin, moistening, and preventing and relieving skin tension failure and wrinkles, thereby efficaciously retarding skin aging.
摘要:
A discharge lamp operating apparatus includes a DC power circuit portion for outputting a DC voltage; an inverter circuit including a switching element provided with a control terminal for converting an output from the DC power circuit portion to an AC voltage; a control terminal driving circuit for controlling the switching element provided with a control terminal to be on or off; and a resonant load circuit including a discharge lamp, a first inductor and a first capacitor. The control terminal driving circuit includes a drive winding mutually coupled to the first inductor; a series circuit of a voltage clamp element and an impedance element, the series circuit being connected to at least one end of the drive winding, and the control terminal driving circuit is configured to control the switching element provided with a control terminal to be on or off by a voltage generated at the drive winding.
摘要:
An electrode-less discharge lamp lighting apparatus which is electrically connected to a dimming unit (2) is provided with: an electrode-less fluorescent lamp (3); and a lighting circuit (4) operable to apply a high-frequency voltage to the electrode-less fluorescent lamp (3), wherein the lighting circuit (4) includes: an AC/DC converting unit (5) operable to convert a phase-controlled AC voltage outputted from the dimming unit (2) into a DC voltage; a DC/AC converting unit (6) operable to convert the DC voltage into a high-frequency voltage; and a dimming controlling unit (7) that includes a resistor (29), a switching element (28), and a timer circuit (27) so as to detect a timing of a turn-on of the phase-controlled AC voltage and to, based on the detected timing, allow a current whose value is at least a threshold to flow across output terminals of the AC/DC converting unit (5) for at least a duration of a time lag between the turn-on of the phase-controlled AC voltage and the generation of the high-frequency voltage by the DC/AC converting unit (6).
摘要:
A discharge lamp lighting device according to the present invention includes: a discharge lamp including an electrode; and a lighting circuit for lighting the discharge lamp, the lighting circuit being connected to the discharge lamp, wherein the discharge lamp includes a conductor at least partially surrounding the electrode, and the lighting circuit provides a potential for the conductor that is higher than an average potential of the electrode.
摘要:
A discharge lamp apparatus is capable of securely detecting the decrease of emission in the terminal stage of the life of a discharge lamp by connecting a voltage detecting circuit to the discharge lamp, and a discharge lamp apparatus for securely starting, operating and dimming the discharge lamp, and is also capable of protecting the lamp in the event of abnormality; the apparatus includes two timer circuits, a reset circuit, a dimmer circuit, an abnormality detecting circuit, and a stopping circuit.
摘要:
An electrodeless discharge lamp operating device including an electrodeless discharge lamp 3 and a ballast circuit 4, wherein the ballast circuit 4 includes: an AC-DC converter 5 for converting a phase-controlled AC voltage into a DC voltage; a DC-AC converter 6 formed so as to intermittently drive the electrodeless discharge lamp 3 due to the existence of an operating period during which a high-frequency voltage is applied to the electrodeless discharge lamp 3 so that the electrodeless discharge lamp 3 is operated, and an extinguishing period during which the generation of the high-frequency voltage is stopped so that the electrodeless discharge lamp 3 is extinguished; and a dimming controller 7 for detecting the turn-on of the phase-controlled AC voltage, for outputting an intermittent command signal that changes the ratio between the operating period and the extinguishing period to the DC-AC converter 6, and for outputting a signal that maintains an intermittent dimmable operating state even if dimming state is in full illumination.
摘要:
An electrodeless self-ballasted fluorescent lamp includes an electrodeless fluorescent lamp 3, a ballast circuit 4 and a lamp base which are formed as one unit. The ballast circuit 4 includes: an AC-DC converter 5; a DC-AC converter 6 formed so as to intermittently drive the electrodeless fluorescent lamp 3; and a dimming controller 7 formed so as to detect the turn-on of a phase-controlled AC voltage and output an intermittent command signal for changing the ratio between an operating period and an extinguishing period to the DC-AC converter 6. Furthermore, the dimming controller 7 is formed so as to output a signal for extinguishing the electrodeless fluorescent lamp 3 before the operation thereof becomes unstable.