scholarly journals STRENGTH TESTING OF STRIPPING CYLINDER’S TOOTH

2021 ◽  
pp. 67-72
Author(s):  
Alexey Buryanov ◽  
Ivan Chervyakov ◽  
Alexey Kolin’ko
Keyword(s):  
Winter Wheat ◽  
Strength Testing ◽  
Definition Of

A magnitude of a stripping tooth’s necessary strength is an important parameter for designing of reapers. Methodology and means of efforts’ measuring, appeared at stripping teeth, are suggested in the article so as they are necessary for strength calculations. As an example of this method, the definition of efforts, which appear at a tooth during stripping of winter wheat “Luchezar” variety with humidity 10.7% at the certain conditions, is used.

scholarly journals ФОРМУВАННЯ ЕЛЕМЕНТІВ СТРУКТУРИ ВРОЖАЙНОСТІ ТА ЯКОСТІ ЗЕРНА НОВИХ СОРТІВ ПШЕНИЦІ ОЗИМОЇ В ПІВНІЧНОМУ СТЕПУ

2014 ◽  
pp. 165-168
Author(s):  
Н. Л. Ноздріна
Keyword(s):  
Winter Wheat ◽  
Grain Quality ◽  
Weather Conditions ◽  
Yielding Capacity ◽  
New Varieties ◽  
Bare Fallow ◽  
Definition Of

Наведено результати дослідження з визначенняелементів структури урожайності (кількість продукти-вних стебел на 1 м2, кількість зерен у колосі, масазерна із колоса, маса 1000 зерен) та якості зернанових сортів пшениці озимої по чорному пару. Вста-новлено вплив погодних умов на урожайність таякість зерна. Виявлено, що більшу урожайність усіхсортів було отримано в сприятливому за зволожен-ням 2013 році, меншу – в посушливому 2012 році.Найбільш урожайними були сорти Заможність іАнтонівка. У різні за погодними умовами роки найлі-пші показники якості зерна формував сорт Сонечко,а нижчі – сорт Розкішна. The results of research concerning the definition of structure units of yielding  capacity (quantity of productive stems on 1 m2, quantity of grains in an ear, mass of grain in an ear, mass of 1000 grains) and quality of grain of new varieties of winter wheat, grown on bare fallow are cited. Influence of weather conditions on yielding capacity and quality of grain is established. It is revealed that the greatest yielding capacity of all varieties has been received in 2013 year with sufficient moistening, the least - in droughty 2012 year. The varieties Zamozhnist  and Antonivka were the most productive. In years different in weather conditions the best indexes of grain quality were formed by variety of Sonechko, and low – by variety Rozkishna.

A New Hooked Needle Device For Forming Fiber Beards For Length and Strength Measurement

1978 ◽  
Vol 100 (1) ◽  
pp. 5-7
Author(s):  
R. L. Barker ◽  
H. W. Poole ◽  
D. W. Lyons
Keyword(s):  
Cotton Fiber ◽  
Automated Analysis ◽  
Design Parameters ◽  
Strength Testing ◽  
Design Development ◽  
Strength Measurement ◽  
Visual Appearance ◽  
Critical Design ◽  
Thin Profile ◽  
Definition Of

Research was conducted in the design, development, and evaluation of a new hooked needle device for obtaining from a sample of cotton a parallelized beard of fiber suitable for instrumented length and strength testing. Through systematic definition of critical design parameters, needle combs were developed capable of forming thin profile fiber beards of exceptional uniformity and visual appearance. The acceptability of a hooked needle method for preparing beards of cotton fiber for automated analysis was demonstrated as this device was compared with conventional clamp and comb arrangements of fiber sampling.

scholarly journals Genotypic specificity of some winter wheat traits and their effect on grain yield

Genetika ◽  
2012 ◽  
Vol 44 (2) ◽  
pp. 251-258
Author(s):  
Nebojsa Deletic ◽  
Slavisa Stojkovic ◽  
Slavisa Gudzic ◽  
Vladan Djuric ◽  
Miroljub Aksic
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Total Nitrogen ◽  
Nitrogen Accumulation ◽  
Good Definition ◽  
Joint Influence ◽  
Biological Yield ◽  
Distinctive Property ◽  
Definition Of ◽  
Genotypic Specificity

This paper presents the two year results of a study dealing with genotypic specificity of some nitrogen accumulation parameters and yield components, as well as their individual and joint influence on grain yield per plant, in twenty Serbian winter wheat cultivars. There were significant differences among the investigated cultivars regarding the all studied traits. Coefficient of variation ranged from 6.81% for 1000 grain mass to 12.91% for total nitrogen accumulation. Cluster analysis showed the studied genotypes divided into two clusters, where larger one was further divided into several smaller clusters. Good definition of clusters is a sign that these traits? pattern is a distinctive property of a genotype. Multiple regression analysis showed that the all four studied traits, as well as intercept value, had significant effect on grain yield. The greatest effect was expressed by number of grain per spike, where standardized regression coefficient (?) was 0.535. Adjusted R2 value (0.984) showed that 98.4% of the observed variation in grain yield was explained by the studied four traits. When biological yield is regarded, only total nitrogen accumulation and intercept value were significant. ? value for total NA was 0.713, and adjusted R2 was 0.787.

Introductory paper

1966 ◽  
Vol 24 ◽  
pp. 3-5
Author(s):  
W. W. Morgan
Keyword(s):  
Line Intensity ◽  
Classification Scheme ◽  
Two Dimensional ◽  
Spectral Classification ◽  
Dimensional Array ◽  
Rr Lyrae ◽  
Metallic Line ◽  
Introductory Paper ◽  
Parameter Varying ◽  
Definition Of

1. The definition of “normal” stars in spectral classification changes with time; at the time of the publication of theYerkes Spectral Atlasthe term “normal” was applied to stars whose spectra could be fitted smoothly into a two-dimensional array. Thus, at that time, weak-lined spectra (RR Lyrae and HD 140283) would have been considered peculiar. At the present time we would tend to classify such spectra as “normal”—in a more complicated classification scheme which would have a parameter varying with metallic-line intensity within a specific spectral subdivision.

2.2. Working Group 2: Conceptual Definitions of Reference Coordinate Systems for Earth Dynamics

1975 ◽  
Vol 26 ◽  
pp. 21-26
Keyword(s):  
Coordinate System ◽  
Working Group ◽  
General Character ◽  
Coordinate Systems ◽  
Reference Coordinate System ◽  
Group 2 ◽  
Definition Of ◽  
Earth Dynamics

An ideal definition of a reference coordinate system should meet the following general requirements:1. It should be as conceptually simple as possible, so its philosophy is well understood by the users.2. It should imply as few physical assumptions as possible. Wherever they are necessary, such assumptions should be of a very general character and, in particular, they should not be dependent upon astronomical and geophysical detailed theories.3. It should suggest a materialization that is dynamically stable and is accessible to observations with the required accuracy.

Symbiotic Stars at Optical, Infrared and Radio Wavelengths

1979 ◽  
Vol 46 ◽  
pp. 125-149 ◽  
Author(s):  
David A. Allen
Keyword(s):  
Temperature Regime ◽  
Type Star ◽  
Stellar Systems ◽  
Symbiotic Stars ◽  
Lower Excitation ◽  
Definition Of ◽  
Original Type

No paper of this nature should begin without a definition of symbiotic stars. It was Paul Merrill who, borrowing on his botanical background, coined the termsymbioticto describe apparently single stellar systems which combine the TiO absorption of M giants (temperature regime ≲ 3500 K) with He II emission (temperature regime ≳ 100,000 K). He and Milton Humason had in 1932 first drawn attention to three such stars: AX Per, CI Cyg and RW Hya. At the conclusion of the Mount Wilson Ha emission survey nearly a dozen had been identified, and Z And had become their type star. The numbers slowly grew, as much because the definition widened to include lower-excitation specimens as because new examples of the original type were found. In 1970 Wackerling listed 30; this was the last compendium of symbiotic stars published.

Immunoferritin localization of intracellular antigens in positively stained frozen sections

1978 ◽  
Vol 36 (2) ◽  
pp. 168-169
Author(s):  
K. T. Tokuyasu
Keyword(s):  
Surface Tension ◽  
Water Surface ◽  
Thin Layers ◽  
The Other ◽  
Positive Staining ◽  
Frozen Sections ◽  
The Past ◽  
Ultrathin Frozen Sections ◽  
Definition Of

During the past investigations of immunoferritin localization of intracellular antigens in ultrathin frozen sections, we found that the degree of negative staining required to delineate u1trastructural details was often too dense for the recognition of ferritin particles. The quality of positive staining of ultrathin frozen sections, on the other hand, has generally been far inferior to that attainable in conventional plastic embedded sections, particularly in the definition of membranes. As we discussed before, a main cause of this difficulty seemed to be the vulnerability of frozen sections to the damaging effects of air-water surface tension at the time of drying of the sections.Indeed, we found that the quality of positive staining is greatly improved when positively stained frozen sections are protected against the effects of surface tension by embedding them in thin layers of mechanically stable materials at the time of drying (unpublished).

Initial Polymerization Sites Indicated During Mitochondrial Oxidation of Diaminobenzidine after Toluene Treatment

1977 ◽  
Vol 35 ◽  
pp. 408-409
Author(s):  
W. A. Shannon ◽  
M. A. Matlib
Keyword(s):  
Membrane Permeability ◽  
Cytochrome Oxidase ◽  
Rat Liver ◽  
Precise Definition ◽  
Cytochemical Localization ◽  
Oxidative Reaction ◽  
Mitochondrial Oxidation ◽  
Definition Of ◽  
Exogenous Substrates

Numerous studies have dealt with the cytochemical localization of cytochrome oxidase via cytochrome c. More recent studies have dealt with indicating initial foci of this reaction by altering incubation pH (1) or postosmication procedure (2,3). The following study is an attempt to locate such foci by altering membrane permeability. It is thought that such alterations within the limits of maintaining morphological integrity of the membranes will ease the entry of exogenous substrates resulting in a much quicker oxidation and subsequently a more precise definition of the oxidative reaction.The diaminobenzidine (DAB) method of Seligman et al. (4) was used. Minced pieces of rat liver were incubated for 1 hr following toluene treatment (5,6). Experimental variations consisted of incubating fixed or unfixed tissues treated with toluene and unfixed tissues treated with toluene and subsequently fixed.

Application of Scanning Electron Microscopy to Medical Research

1969 ◽  
Vol 27 ◽  
pp. 12-13
Author(s):  
J. D. Hutchison
Keyword(s):  
Electron Microscopy ◽  
Electron Microscope ◽  
Medical Research ◽  
Prosthetic Heart Valve ◽  
School Of Medicine ◽  
Transmission Electron ◽  
Definition Of ◽  
Mechanism Of Failure ◽  
The Brain ◽  
Scanning Electron

When the transmission electron microscope was commercially introduced a few years ago, it was heralded as one of the most significant aids to medical research of the century. It continues to occupy that niche; however, the scanning electron microscope is gaining rapidly in relative importance as it fills the gap between conventional optical microscopy and transmission electron microscopy.IBM Boulder is conducting three major programs in cooperation with the Colorado School of Medicine. These are the study of the mechanism of failure of the prosthetic heart valve, the study of the ultrastructure of lung tissue, and the definition of the function of the cilia of the ventricular ependyma of the brain.

Selection and Preparation of Specific Tissue Regions For Tem Using Large Epoxy-Embedded Blocks

1973 ◽  
Vol 31 ◽  
pp. 324-325 ◽  
Author(s):  
P. M. Lowrie ◽  
W. S. Tyler
Keyword(s):  
Electron Microscopy ◽  
Anatomical Structures ◽  
Ultrastructural Studies ◽  
Transmission Electron ◽  
Microscopic Evaluation ◽  
Embedded Blocks ◽  
Specific Tissue ◽  
Definition Of ◽  
Areas Of Interest ◽  
Selection Of

The importance of examining stained 1 to 2μ plastic sections by light microscopy has long been recognized, both for increased definition of many histologic features and for selection of specimen samples to be used in ultrastructural studies. Selection of specimens with specific orien ation relative to anatomical structures becomes of critical importance in ultrastructural investigations of organs such as the lung. The uantity of blocks necessary to locate special areas of interest by random sampling is large, however, and the method is lacking in precision. Several methods have been described for selection of specific areas for electron microscopy using light microscopic evaluation of paraffin, epoxy-infiltrated, or epoxy-embedded large blocks from which thick sections were cut. Selected areas from these thick sections were subsequently removed and re-embedded or attached to blank precasted blocks and resectioned for transmission electron microscopy (TEM).

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