The question of normal pitch error is educed,the answer of how to settle it is found.

Analysis of normal heat transfer in multilayer insulation;

For some disadvantages in the practice of existing radial spreading method,a new radial spreading approach with a concern of outside normal direction,which was based on geometric mapping method and triangle meshes,was developed to resolve blank design problem of sheet metal part with or without hole features.

Generally,normal based shape histogram feature,such as Complex Extend Gaussian Image,is rotation-variant for 3D shape.

A new technology,which is called non-interference normal tracking for NC curve grinding was presented.

The Median Theorem will be applied to determining the normal vector of the point on parabola and then using the technology of tip compensation to measure the parabola accurately.

In this paper, first introduces about normal vector and then deals with how the stylus regulating automatically its own level on contact complex surface and holds constant level with nominal deflection.

Our method uses object surface normal vectors to obtain vector distances between 3D objects.

Study on Intervention in Normal Circular-arc Bevel Gears Processing;

Study on intervention in milling normal circular-arc bevel gears;

Study on NC Machining of Normal Circular-arc Bevel Gears;

Considering the difference of normal angle between the tube inner surface and the solid-liquid interface of the melting PCM,the new model was set up and the fundamental equations of the melting process are derived by the film theory.