Abstract: Disclosed is a micro viscometer comprising a body including an inlet where a fluid flows in, an outlet where the fluid flows out, a first chamber and a second chamber that is connected to the inlet and the outlet, respectively, a substrate and a cover that partition multiple micro channels that connect the first chamber and the second chamber; a first thin film that vibrates with the fluid within the first chamber and locates on the side of the first chamber; a second thin film that vibrates with the fluid within the second chamber and locates on the side of the second chamber; an actuating part that applies vibration onto the fluid within the first chamber by conducting vibration through the first thin film; a sensing part that senses vibration or pressure onto the fluid that transfers through the micro channels to the second thin film through vibration of the first thin film.

Abstract: A delivering unit for a semiconductor chip provided with a solder bump may include a shuttle configured to move translationally along a direction; at least one chip supporting plate provided on the shuttle to support the semiconductor chip; a pick-up head configured to pick up the semiconductor chip from the at least one chip supporting plate; and at least one buffering member supporting the at least one chip supporting plate and relieving an impact between the pick-up head and the semiconductor chip. A semiconductor chip mounting apparatus may include a chip providing unit configured to provide semiconductor chips having one or more solder bumps; a mounting unit configured to mount the semiconductor chips on printed circuit boards in a surface mounting manner; and a chip delivering unit configured to deliver the semiconductor chips from the chip providing unit to the mounting unit.

Abstract: An image forming apparatus detects whether a cover is opened or closed in each of a general power mode and a power saving mode. The image forming apparatus includes a cover opening/closing sensor to detect opening or closing of a cover, a cover opening/closing sensing power-supply input unit to provide or not to provide a voltage different from an operation voltage of the image forming apparatus, to the cover opening/closing sensor according to the opening or closing of the cover, and an interlock switch to connect or not to connect the cover opening/closing sensor to the cover opening/closing sensing power-supply unit according to the opening or closing of the cover.

Abstract: An image forming apparatus detects whether a cover is opened or closed in each of a general power mode and a power saving mode. The image forming apparatus includes a cover opening/closing sensor to detect opening or closing of a cover, a cover opening/closing sensing power-supply input unit to provide or not to provide a voltage different from an operation voltage of the image forming apparatus, to the cover opening/closing sensor according to the opening or closing of the cover, and an interlock switch to connect or not to connect the cover opening/closing sensor to the cover opening/closing sensing power-supply unit according to the opening or closing of the cover.

Abstract: The present invention relates to a method for preparing monoglyceride sulfonate that is useful for a cleansing agent for a human body, economically in a large amount, from an inexpensive fatty acid using a convenient manufacturing unit. The present invention also provides a soft soap composition comprising monoglyceride sulfonate and a fatty acid soap, which has superior molding and stamping workability, softness, smoothness, foamability, and moisturizing ability. The present invention also provides a method for preparing a salt-containing soft soap using the fatty acid used for preparation of the monoglyceride sulfonate, which contains a lot of salt, so that is softens skin, easily removes waste materials, prevents irritation, promotes blood circulation, and prevents depilation and dandruff.