Abstract: An information presentation device according to an embodiment includes a contour extraction unit, an abstraction processing unit, and a contour correction unit. The contour extraction unit extracts a contour of each structural object included in data showing a layout of a plurality of structural objects. The abstraction processing unit abstracts a contour of each structural object extracted by the contour extraction unit and draws the abstracted contour on a plane grid surface in which grid lines in two directions orthogonal to each other are drawn. The contour correction unit corrects, among contour lines to constitute a contour abstracted by the abstraction processing unit, a contour line deviating from both of the grid lines in the two directions so as to match a grid line in at least one direction of the grid lines in the two directions.

Abstract: A visualization system includes: a first creation section configured to create, for each product manufacturing unit, a line segment connecting a start or end time of a first step to a start or end time of a subsequent second step; a second creation section configured to identify, based on a change log of a step characteristic factor at each manufacturing step, any change in step characteristic factor observed at the first and second steps, and to create a display object representing magnitude of the change in step characteristic factor or including a region representing an attribute of the changed step characteristic factor; and a display control section configured to cause: to display a line segment representing the time axis, created by the first creation section, and the display object, and to display the display objects over positions of the start or end times on time axes of their associated steps.

Abstract: A visualization system includes: a first creation section configured to create, for each product manufacturing unit, a line segment connecting a start or end time of a first step to a start or end time of a subsequent second step; a second creation section configured to identify, based on a change log of a step characteristic factor at each manufacturing step, any change in step characteristic factor observed at the first and second steps, and to create a display object representing magnitude of the change in step characteristic factor or including a region representing an attribute of the changed step characteristic factor; and a display control section configured to cause: to display a line segment representing the time axis, created by the first creation section, and the display object, and to display the display objects over positions of the start or end times on time axes of their associated steps.

Abstract: An information presentation device according to an embodiment includes a contour extraction unit, an abstraction processing unit, and a contour correction unit. The contour extraction unit extracts a contour of each structural object included in data showing a layout of a plurality of structural objects. The abstraction processing unit abstracts a contour of each structural object extracted by the contour extraction unit and draws the abstracted contour on a plane grid surface in which grid lines in two directions orthogonal to each other are drawn. The contour correction unit corrects, among contour lines to constitute a contour abstracted by the abstraction processing unit, a contour line deviating from both of the grid lines in the two directions so as to match a grid line in at least one direction of the grid lines in the two directions.

Abstract: A corrugated fin heat exchanger is provided in which the direction in which louvers are cut and raised is inclined in one direction only, and in which heat transfer performance is improved above that of conventional fins. To accomplish this, the relationship H>Qup/(Qup?1)×?H is satisfied. H represents the core height of the heat exchanger, Qup represents the ratio of the amount of heat exchanged per corrugation between one-directional louver fins and multi-directional louver fins in an airflow part, and ?H represents the amount of increase in a heat transfer reduction region of a heat exchanger core as a result of changing from multi-directional louver fins to one-directional louver fins.

Abstract: A corrugated fin heat exchanger is provided in which the direction in which louvers are cut and raised is inclined in one direction only, and in which heat transfer performance is improved above that of conventional fins. To accomplish this, the relationship H>Qup/(Qup?1)×?H is satisfied. H represents the core height of the heat exchanger, Qup represents the ratio of the amount of heat exchanged per corrugation between one-directional louver fins and multi-directional louver fins in an airflow part, and ?H represents the amount of increase in a heat transfer reduction region of a heat exchanger core as a result of changing from multi-directional louver fins to one-directional louver fins.