摘要:
Disclosed is a process for producing a multicomponent catalyst containing molybdenum and bismuth and used for synthesis of unsaturated aldehydes and unsaturated carboxylic acids, characterized in that dried starting materials for the catalyst are calcinated in an atmosphere containing 1 vol % or more of a nitrogen oxide and 0.5 vol % or more of oxygen.
摘要:
A catalyst for acrylonitrile synthesis is disclosed which is composed of particles containing silica and a composite oxide including at least molybdenum. When the Mo/Si atomic ratio in bulk composition of the catalyst is represented by A and the Mo/Si atomic ratio in surface composition of the particles is represented by B, B/A is not more than 0.6.
摘要:
A motion detection device includes a feature extracting section 2 extracting a feature area of an object from among frame images clipped by an image pickup section 1, a feature standardizing section 3 standardizing a size of a feature area extracted by the feature extracting section 2, a balloting section 4 counting up a ballot value of an image area on a frame image located in a standardized pattern that is standardized by the feature standardizing section 3, and a shift speed detecting section 5 calculating a gradient of a counted-up ballot value and calculating a shift direction, a shift speed and position of a feature area based on the gradient.
摘要:
A catalyst for acrylonitrile synthesis is disclosed which is composed of particles containing silica and a composite oxide including at least molybdenum. When the Mo/Si atomic ratio in bulk composition of the catalyst is represented by A and the Mo/Si atomic ratio in surface composition of the particles is represented by B, B/A is not more than 0.6.
摘要:
A motion detection device includes a feature extracting section 2 extracting a feature area of an object from among frame images clipped by an image pickup section 1, a feature standardizing section 3 standardizing a size of a feature area extracted by the feature extracting section 2, a balloting section 4 counting up a ballot value of an image area on a frame image located in a standardized pattern that is standardized by the feature standardizing section 3, and a shift speed detecting section 5 calculating a gradient of a counted-up ballot value and calculating a shift direction, a shift speed and position of a feature area based on the gradient.
摘要:
Imaging device picks up an image of the area around a vehicle, edge extraction function extracts an edge image from the image picked up by the imaging device, edge width standardization function standardizes an edge width of the edge image extracted by the edge extraction function, counting functions increments a count value corresponding to a position where the edge image standardized by the edge width standardization function is detected, and also initializes a count value corresponding to a position where the standardized edge image is not detected, moving speed detection function calculates a moving direction and moving speed of the edge image extracted by the edge extraction function based on the inclination of the count values, and collision time calculation function calculates the time of collision with an object by utilizing the position and the moving speed of the edge image calculated by the moving speed detection function.
摘要:
A motion detection apparatuses and method where a characteristic region is extracted from an image produced by an imaging device are described. A modified region is formed by modifying the characteristic region. Voting occurs so as to count up to increase a count value at a memory address corresponding to a location inside the modified region and to reset a count value at a memory address corresponding to a location outside the modified region. At least one of the moving direction and the moving speed of the modified region is calculated based on a difference among accumulated count values for adjacent locations. The position of the modified region can be calculated based on count values and locations in the modified region.
摘要:
A motion detection apparatus. A characteristic region is extracted from an image produced by an imaging device. A modified region is formed by modifying the characteristic region. Voting occurs so as to count up to increase a count value at a memory address corresponding to a location inside the modified region and to reset a count value at a memory address corresponding to a location outside the modified region. At least one of the moving direction and the moving speed of the modified region is calculated based on a difference among accumulated count values for adjacent locations. The position of the modified region can be calculated based on count values and locations in the modified region.
摘要:
In method and apparatus for detecting a position of an object present in a surrounding detection zone of an automotive vehicle, a distance of the vehicle to the object is measured, the surrounding detection zone of the vehicle is photographed, the photographed surrounding detection zone to extract is image processed at least one longitudinal edge from the photographed surrounding detection zone of the vehicle, and the position of the object to the vehicle is detected on the basis of a direction of the extracted longitudinal edge and a measured value of the distance to the object.
摘要:
A process for producing a supported catalyst for the synthesis of methacrolein and methacrylic acid in which a catalytic active substance comprising a composite oxide containing molybdenum and bismuth as essential components is supported on the inside surface and/or the outside surface of an inert carrier, which comprises the steps of drying a mixed solution or an aqueous slurry containing the compounds of the elements constituting the catalytic active substance, subjecting the dried product to a primary calcination at a temperature in a range of 200.degree.-400.degree. C. to form a catalytic active substance precursor, comminuting the obtained catalytic active substance precursor to such an extent that the medium particle size in the volume-based particle size distribution becomes 10 .mu.m or less, supporting the comminution product on an inert carrier, and subjecting it to a secondary calcination at a temperature which is 100.degree. C. or more higher than the primary calcination temperature.