The experimental results showed that there occurred bis transition points or pseudo double plateau regions on the γ -lg c curves of AS-PVP and of AS-PEG with greater molecular weights.

The Algorithm and application of discrete inflection point;

8 A note on extreme points and inflection points of rational entire functions;

2007:the profit turning point for papermaking industry;

The general trend of work safety in China have entered the turning point——macro-early warning and analysis of trend of work safety

Does Turning Point of Real Estate Price Emerge with Macro-Control

Analyzing and Forecasting on the Emergence Time of China s Secondary Industry Inflexion;

An Inflexion Explanation for"Preference for Boys"from Social Gender Culture Perspective

Discussion on the effect of changing mathematic simulation curve inflexion points to the polymerization temperature rising state;

Moreover,the flocculation settlement curves of the lignin locution were determined at deferent temperatures under the condition of the polyaluminum ferric chloride flocculation,the sense of the inflexion point of the curve was discussed,and the acaivation energy of the colloid solution flocculatiov was eltimated,which corresponds to the potential-energy(Φm) between sol particles accordin.

Several sufficient conditions of inflexion point of curve are gained.

We analyze the geometric features like cusps and inflection points in the curve and calculate the cusps and inflection points, then give a necessary and sufficient condition to the inflection points.

In this paper the authors analyze the shape features like singularities,inflection points and local or global convexity of rational C-Bézier curve,then give the necessary and sufficient conditions for this curve having one or two inflection points,or a loop,or a cusp,or being local or global convex in terms of the relative position of its control polygons′ side vectors.

In this paper we discuss the distribution of singular points and inflection points on a planar C-Bezier curve in details, and give the necessary and sufficient conditions for having one or two inflection points, or a loop, or a cusp, or none of the above points on the curve in terms of their control polygons.