Determination of Brittle Point of Rubber Materials in Cold Air

Abstract The method described herein for determining brittle point is relatively simple, and the results are indicative of the ability of the material to withstand impact combined with bending. It is believed that this combination will more correctly evaluate brittle point than a bent loop test or other moderate flexing tests. If the material is exposed to low ambient air temperatures in service, then tests to determine brittle point should be made in cold air and not in an immersion bath. Appreciable differences in brittle point are obtained by judicious modifications in compounding ingredients of Buna-N and chloroprene synthetic rubbers.

Download Full-text

The quantitative comparison of experimental and simulated diffraction contrast images

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010013688x ◽

1995 ◽

Vol 53 ◽

pp. 102-103

Author(s):

Stuart McKernan

Keyword(s):

Image Processing ◽

Personal Computer ◽

Close Agreement ◽

Quantitative Comparison ◽

Image Simulation ◽

Computing Power ◽

Diffraction Contrast ◽

Simulated Images ◽

Made In

For many years the concept of quantitative diffraction contrast experiments might have consisted of the determination of dislocation Burgers vectors using a g.b = 0 criterion from several different 2-beam images. Since the advent of the personal computer revolution, the available computing power for performing image-processing and image-simulation calculations is enormous and ubiquitous. Several programs now exist to perform simulations of diffraction contrast images using various approximations. The most common approximations are the use of only 2-beams or a single systematic row to calculate the image contrast, or calculating the image using a column approximation. The increasing amount of literature showing comparisons of experimental and simulated images shows that it is possible to obtain very close agreement between the two images; although the choice of parameters used, and the assumptions made, in performing the calculation must be properly dealt with. The simulation of the images of defects in materials has, in many cases, therefore become a tractable problem.

Download Full-text

Science of Ahangyol and Its Importance for Modern Scientific Thought

Journal of Business and Economics ◽

10.15341/jbe(2155-7950)/05.10.2019/009 ◽

2019 ◽

Vol 10 (5) ◽

pp. 473-478

Author(s):

Ahmad Gashamoglu ◽

Keyword(s):

Modern Science ◽

Scientific Basis ◽

New Paradigm ◽

Islamic Philosophy ◽

Scientific Thought ◽

Religious Books ◽

Strategic Approach ◽

Scientific Potential ◽

Made In

The Article briefly discusses the need for generation of the Science of Ahangyol, and this science’s scientific basis, object and subject, category system, scientific research methods and application options. Ahangyol is a universal science and may be useful in any sphere. It may assist in problem solving in peacemaking process and in many areas such as ecology, economics, politics, culture, management and etc. This science stipulates that any activity and any decision made in the life may only and solely be successful when they comply with harmony principles more, which are the principles of existence and activity of the world. A right strategic approach of the Eastern Philosophy and the Middle Age Islamic Philosophy and scientific thought has an important potential. This strategic approach creates opportunities to also consider irrational factors in addition to rational ones comprehensively in scientific researches. The modern scientific thought contributes to implementation of these opportunities. Ahangyol is a science of determination of ways to achieve harmony in any sphere and of creation of special methods to make progress in these ways through assistance of the modern science. Methods of the System Theory, Mathematics, IT, Astronomy, Physics, Biology, Sociology, Statistics and etc. are more extensively applied. Information is given on some of these methods. Moreover, the Science of Ahangyol, which is a new philosophical worldview and a new paradigm contributes to clarification of metaphysic views considerably and discovery of the scientific potential of religious books.

Download Full-text