摘要:
A high-purity stable aqueous silica sol is prepared which has an SiO.sub.2 concentration of from 30 to 50% by weight and which is substantially free from any other polyvalent metal oxides than silica and in which the colloidal silica has a mean particle size falling within the range of from 10 to 30 millimicrons. The silica sol obtained by the method of the present invention has an extremely low content of oxides of polyvalent metals such as iron or aluminum and may therefore be employed for uses which require the absence of such metals in the silica sol, for example, as an abrasive for semiconductors.
摘要:
According to one embodiment, an optical element includes a first optical sheet having a first major surface. The first optical sheet includes a first Fresnel lens provided in the first major surface. An optical axis of the first Fresnel lens at the first major surface is disposed at a position different from a position of a center of an outline of the first major surface.
摘要:
The present invention provides an amino acid-containing composition for preventing or remedying a decrease in skeletal muscle mass of aged people, comprising L-leucine at a molar composition ratio of 35% or more with respect to total of essential amino acids. According to the invention, the protein anabolism of skeletal muscle can be promoted to prevent or remedy a decrease of the skeletal muscle mass of aged people.
摘要:
A muffler for a vehicle, such as a scooter type motorcycle, comprises an inner tubular member and an outer tubular member. An inner surface of the outer tubular member faces an outer surface of the inner tubular member. A ring shaped or annular member is positioned between the outer surface of the inner tubular member and the inner surface of the outer tubular member. The annular member has a substantially hollow cross section and is elastically deformable in a direction perpendicular to a longitudinal axis of the inner tubular member and the outer tubular member.
摘要:
An incident intensity L is categorized into a low illuminance range A1 for immediately moving a sun visor body toward a retracted position, a high illuminance range A2 for immediately moving the sun visor body in a target direction set based on an incident angle, and an intermediate illuminance range A3 set between the two regions A1 and A2. When the incident intensity is in the region A3 and after the target position is continuously set closer to the retracted position or the projected position than the present position for a predetermined time, the sun visor body moves toward the target position. That is, there is a range between an illuminance threshold L1 for immediately moving the sun visor body toward the retracted position and an illuminance threshold L2 for immediately moving the sun visor body in the target direction based on the incident angle.
摘要:
A sun visor apparatus for vehicle including a wiper apparatus that wipes a wipe area defined on an outer surface of a windshield. A light receiving sensor is arranged in the vehicle compartment facing toward the wipe area. When the windshield is stained by mud or bird feces, this does not interfere with the incident light received by the light receiving sensor as long as the wiper apparatus wipes the outer surface of the windshield. Accordingly, the light receiving sensor outputs an incident light detection signal that accurately corresponds to the incident light. A light shield body is properly extended and retracted in accordance with the incident light detection signal.
摘要:
A pair of drive gears rotated by a drive motor is meshed with meshing surfaces of a pair of slide guides of a light shield body. A plurality of rotation rollers rotate on roll surfaces of the slide guides and hold the pair of slide guides in a thicknesswise direction of the light shield body. The drive gears have contact portions that come into contact with side surfaces of the slide guides that are arranged to face each other or face opposite directions. Accordingly, a vehicle sun visor apparatus may be reduced in size.
摘要:
A novel L-sorbose dehydrogenase (SDH) and a novel L-sorbosone dehydrogenase both derived from Gluconobacter oxydans T-100, a DNA which encodes the SDH and/or SNDH, an expression vector which contains the DNA, a host cell transformed by the expression vector and a process for producing the SDH and/or SNDH, which comprises culturing the host cell in a medium and recovering the SDH and/or SNDH from the resulting culture. The SDH and SNDH of the present invention are useful enzymes having preferable properties for the production of 2-keto-L-gulonic acid, as well as L-ascorbic acid. According to the production method of the present invention, the SDH and SNDH having such preferable properties can be produced in large amounts by genetic engineering.
摘要:
A muffler for a vehicle, such as a scooter type motorcycle, comprises an inner tubular member and an outer tubular member. An inner surface of the outer tubular member faces an outer surface of the inner tubular member. A ring shaped or annular member is positioned between the outer surface of the inner tubular member and the inner surface of the outer tubular member. The annular member has a substantially hollow cross section and is elastically deformable in a direction perpendicular to a longitudinal axis of the inner tubular member and the outer tubular member.
摘要:
An incident intensity L is categorized into a low illuminance range A1 for immediately moving a sun visor body toward a retracted position, a high illuminance range A2 for immediately moving the sun visor body in a target direction set based on an incident angle, and an intermediate illuminance range A3 set between the two regions A1 and A2. When the incident intensity is in the region A3 and after the target position is continuously set closer to the retracted position or the projected position than the present position for a predetermined time, the sun visor body moves toward the target position. That is, there is a range between an illuminance threshold L1 for immediately moving the sun visor body toward the retracted position and an illuminance threshold L2 for immediately moving the sun visor body in the target direction based on the incident angle.