DETERMINATION METHOD OF FLORET NUMBER AND THEIR DENSITY IN SUNFLOWER HEAD / METODO PARA LA DETERMINACION DEL NUMERO DE FLORES Y SU DENSIDAD A LA CABEZA DE GIRASOL / METHODE DE DÉTERMINATION DU NOMBRE DE FLEURS ET DE LEUR DENSITÉ SUR LA TÊTE DE TOURNESOL

Helia ◽  
2001 ◽  
Vol 24 (34) ◽  
pp. 41-48
Author(s):  
I.V. Marin
Keyword(s):  
Initial Data ◽  
Golden Section ◽  
Determination Method ◽  
Flower Number ◽  
Disk Flower ◽  
Simple Method

SUMMARYThe aim of this work was to develop a simple method for calculating disk flower number and their density in sunflower head. The formula developed on the basis of the Golden section includes initial data of the number of smallshort rows and the number of florets in a row. It takes no more than a minute to gain initial data for calculating the formula for one head.

Fuzzy Number Approximation

1998 ◽  
Vol 06 (01) ◽  
pp. 69-78 ◽  
Author(s):  
Mariano Jiménez ◽  
Juan Antonio Rivas
Keyword(s):  
Initial Data ◽  
Economic Model ◽  
Fuzzy Number ◽  
Fuzzy Numbers ◽  
Triangular Fuzzy Number ◽  
Membership Functions ◽  
Simple Method ◽  
Non Linear

As the number of parameters involved in an economic model is often uncertain, we propose that it be estimated using fuzzy numbers. Since we move in an environment of uncertainty, it is logical to leave room for deviation in estimating membership functions. We should recall that when soft max-min operators are used, the resulting deviation is never greater than the variation introduced in estimating the initial data. Often, the result of our calculations is not a triangular fuzzy number. In this paper we study the value of approximating the resulting non-linear fuzzy number using a triangular fuzzy number having the same support and kernel. Finally, we present a simple method for weighing this approximation.

Research on Durability Test Method for Wheel Bearings

2012 ◽  
Vol 562-564 ◽  
pp. 803-807
Author(s):  
Hong Wu You ◽  
Ze Yu Weng ◽  
Di Jiang Yin ◽  
Bo Lu
Keyword(s):  
Test Methods ◽  
Test Method ◽  
Center Line ◽  
Determination Method ◽  
Durability Test ◽  
Monitoring Method ◽  
Simple Method ◽  
Outer Circle ◽  
Inner Circle ◽  
Wheel Bearing

The paper discusses durability test methods for wheel bearings. Through studying on the offset between the center line of a wheel and the center line on which the tire is forced, we get the determination method for the simulating load position on the wheel bearing . Depending on the influence study of inner circle or outer circle rotating method to the life performance of the wheel bearings, we give the test method on the bench. Based on the discussing of the bench monitoring method of wheel bearings, we give the effective and simple method to determine the failure of wheel bearings with Kur tosis.

A simple way for producing holographic filters suitable for image improvement

1978 ◽  
Vol 36 (1) ◽  
pp. 226-227
Author(s):  
K.-H. Herrmann ◽  
E. Reuber ◽  
P. Schiske
Keyword(s):  
Transfer Functions ◽  
Diffraction Order ◽  
Lateral Position ◽  
Simple Method ◽  
Spatial Frequencies ◽  
Resolution Electron ◽  
Wiener Filters ◽  
Image Improvement ◽  
Optical Reconstruction ◽  
Set Up

Aposteriori deblurring of high resolution electron micrographs of weak phase objects can be performed by holographic filters [1,2] which are arranged in the Fourier domain of a light-optical reconstruction set-up. According to the diffraction efficiency and the lateral position of the grating structure, the filters permit adjustment of the amplitudes and phases of the spatial frequencies in the image which is obtained in the first diffraction order.In the case of bright field imaging with axial illumination, the Contrast Transfer Functions (CTF) are oscillating, but real. For different imageforming conditions and several signal-to-noise ratios an extensive set of Wiener-filters should be available. A simple method of producing such filters by only photographic and mechanical means will be described here.A transparent master grating with 6.25 lines/mm and 160 mm diameter was produced by a high precision computer plotter. It is photographed through a rotating mask, plotted by a standard plotter.

Rotary Beveling for In Situ Thin-Section Microscopy of Cell Cultures

1981 ◽  
Vol 39 ◽  
pp. 550-551
Author(s):  
Dean A. Handley ◽  
Jack T. Alexander ◽  
Shu Chien
Keyword(s):  
Cell Growth ◽  
Cell Cultures ◽  
Molecular Interactions ◽  
Convenient Method ◽  
Petri Dish ◽  
Simple Method ◽  
Thin Section Microscopy ◽  
Thin Sectioning ◽  
Organic Fluids

In situ preparation of cell cultures for ultrastructural investigations is a convenient method by which fixation, dehydration and embedment are carried out in the culture petri dish. The in situ method offers the advantage of preserving the native orientation of cell-cell interactions, junctional regions and overlapping configurations. In order to section after embedment, the petri dish is usually separated from the polymerized resin by either differential cryo-contraction or solvation in organic fluids. The remaining resin block must be re-embedded before sectioning. Although removal of the petri dish may not disrupt the native cellular geometry, it does sacrifice what is now recognized as an important characteristic of cell growth: cell-substratum molecular interactions. To preserve the topographic cell-substratum relationship, we developed a simple method of tapered rotary beveling to reduce the petri dish thickness to a dimension suitable for direct thin sectioning.

Development of a simple method for the determination of single nucleotide polymorphisms

2010 ◽  
Vol 34 (8) ◽  
pp. S75-S75
Author(s):  
Weifeng Zhu ◽  
Zhuoqi Liu ◽  
Daya Luo ◽  
Xinyao Wu ◽  
Fusheng Wan
Keyword(s):  
Single Nucleotide Polymorphisms ◽  
Nucleotide Polymorphisms ◽  
Simple Method ◽  
Single Nucleotide
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