Ethanol as a blending component of petrol. Determination of appearance. Visual method

2015 ◽  
Keyword(s):  
Visual Method

Multi-Criteria Analysis in Assessment of the Degree of Degradation Pavement Elements Functional Airports Made of Cement Concrete

2017 ◽  
Author(s):  
Mariusz Wesołowski ◽  
Krzysztof Blacha ◽  
Piotr Barszcz
Keyword(s):  
Quality Management System ◽  
Technical Condition ◽  
Cement Concrete ◽  
Functional Elements ◽  
Surface Degradation ◽  
Visual Method ◽  
Flight Operations ◽  
Multi Criteria Analysis ◽  
Degree Of Degradation

An important factor that affects the safety of flight operations is the proper management of airports, which should be based on the obtained in systematic way information about the state of the surface of the functional elements. One of the characteristic quantities of the technical condition of airport indicator is the assessment of the degree of degradation. It should be noted that the degradation is a slow process extended in time and is the lowering of the properties of the structure by external influences, which in turn generates the changes in their structure. Rating degrade surface should be conducted periodically, which period shall be estimated on the basis of information obtained from the process of the operation of aircraft. Demotions surface is determined on the basis of the type and quantity survey found damage and made repairs. The basis for evaluating the degree of surface degradation is to obtain data from surveys conducted using the method of visual and inventory of them. Research by visual method, despite its apparent simplicity, it is difficult to implement. Qualification of damage or repairs to the appropriate group is often not clear, and therefore the inventory process is described in the documentation of quality management system. The multi-criteria analysis is a method of evaluating the weighted supporting estimating the degree of degradation airfield pavements based on data obtained through inspections performed. Its base is included in the determination of a number of criteria for the selection variant, taking into account different weights to each criterion. The value of the indicator characterizing the degree of surface degradation in relation to estimated criteria allows you to schedule the necessary resources needed to carry out repairs and rational planning of repairs.

scholarly journals DETERMINATION OF THE POLISHING QUALITY IN THE WORKING CHANNEL OF THE DRAWING OF CARBIDE TOOLS PRODUCED BY OJSC «BSW – MANAGEMENT COMPANY OF HOLDING «BMC»

2018 ◽  
pp. 75-81
Author(s):  
T. P. Kurenkova ◽  
I. V. Borisovets ◽  
I. P. Lazebnikova
Keyword(s):  
Quality Control ◽  
Roughness Parameter ◽  
Sufficient Accuracy ◽  
Central Laboratory ◽  
Drawing Tool ◽  
Destructive Testing ◽  
Visual Method ◽  
Management Company

The quality of the drawing tool depends on the quality of the channel. Channel processing is carried out in order to obtain the desired geometric shape, required size and limit deviations in accordance with the size and quality of the wire stretched, as well as to obtain the required purity of the surface of the channel drawing. The determination of the surface roughness in the die channel is not possible due to the design of the die, so the quality control of the channel polishing is carried out by a visual method using a stereoscopic microscope.In the laboratories at the Central laboratory of OJSC «BSW – Management Company of Holding «BMC» the experience was undertaken for the determination of the roughness parameter in the channel of the dies by the method of destructive testing. The results obtained show that the visual method of quality control of the working channel polishing of the carbide drawing tool with the help of a stereoscopic microscope provides sufficient accuracy of assessing the quality of the roughness of the surface of the working channel when monitoring the draw die intended for coarse-medium and thin drawing.

scholarly journals The effect of the barley variety, location and year crop on the haze of congress wort

2009 ◽  
Vol 27 (No. 3) ◽  
pp. 158-164 ◽  
Author(s):  
V. Psota ◽  
Z. Skulilová ◽  
J. Hartmann
Keyword(s):  
Hordeum Vulgare ◽  
Subjective Evaluation ◽  
Considerable Effect ◽  
Technological Parameters ◽  
Visual Evaluation ◽  
Visual Method ◽  
Nephelometric Method ◽  
Apparent Attenuation ◽  
The Relationship

The study set consisted of eleven barley (<i>Hordeum vulgare</i> L.) varieties grown at four different locations for a three-year period. The malting characteristics were determined in all samples. The results obtained using the traditional visual evaluation of wort clarity were compared with those obtained nephelometerically. The results indicate a considerable effect of a variety on the wort haze (30–40%). The effect of location on the wort haze varied from 13–22%, the effect of year was small. The level of wort haze or wort clarity split the set of the varieties under study to clearly distinguishable groups. The worts from the varieties Annabell and Nordus inclined to form wort haze. Statistically significant or highly significant correlation was found between the wort haze and clarity and the relative extract at 45°C, diastatic power, final apparent attenuation, and saccharification time. The relationship between the wort haze or clarity and other technological parameters was not statistically significant in most cases. The correlation coefficient between the haze at 15° or 90° (nephelometric method) and wort clarity (visual method) was 0.89. The nephelometric determination of wort haze completely replaces the traditional subjective evaluation of wort clarity. Keywords:

Visual colorimetry for determination of trace arsenic in groundwater based on improved molybdenum blue spectrophotometry

2015 ◽  
Vol 7 (6) ◽  
pp. 2794-2799 ◽  
Author(s):  
Takuya Okazaki ◽  
Hideki Kuramitz ◽  
Noriko Hata ◽  
Shigeru Taguchi ◽  
Keita Murai ◽  
...  
Keyword(s):  
Membrane Filtration ◽  
Visual Method ◽  
Molybdenum Blue ◽  
Arsenic In Groundwater ◽  
Filtration Technique

A sensitive on-site visual method for determination of trace arsenic in groundwater based on molybdenum blue colorimetry combined with a membrane filtration technique was developed.

A green and simple visual method for the determination of the acid-number of biodiesel

Fuel ◽  
2012 ◽  
Vol 95 ◽  
pp. 659-661 ◽  
Author(s):  
Juliana Aparecida Aricetti ◽  
Matthieu Tubino
Keyword(s):  
Acid Number ◽  
Visual Method

scholarly journals Variability in expression of male fertility in triticale (Xtriticosecale wittmack) with Triticum timopheevi cytoplasm

2009 ◽  
Vol 60 (1) ◽  
pp. 23-30 ◽  
Author(s):  
Halina Góral ◽  
Mirosław Tyrka ◽  
Stefan Stojałowski ◽  
Maria Wędzony
Keyword(s):  
Male Fertility ◽  
Anther Development ◽  
Male Sterile ◽  
Visual Method ◽  
Winter Triticale ◽  
Triticum Timopheevi ◽  
The Third ◽  
Plant Fertility

Variability in expression of male fertility in triticale (Xtriticosecalewittmack) withTriticum timopheevicytoplasmWe present a reliable, visual method for evaluation of the level of male fertility during flowering, that is indispensable for breeding of hybrid cultivars of winter triticale based on the cms-T.timopheevisystem. Detailed observations of anther development were performed on 20 F2and BC1plants derived from crosses between male-sterile and fertility restoring lines. Variation of anther development within florets, spikelets, spikes, and among spikes of the same plant was examined. Hierarchic analysis showed significant role of these factors in determination of anther development, irrespective of the level of plant fertility. The sterilizing effect of cytoplasm was always better visible in the tip and base spikelets of the spike, in the third floret, and the anther adjacent to the floret axis. Our data indicate that during selection toward male-sterile plants at anthesis, at least 5 spikes should be evaluated. Special attention should be paid to the development of the anthers at the 2ndand 7thspikelet of the spike along with the variability in anther development within spikelet and floret. The anthers in the tip and base spikelets of the spike must be precisely evaluated during selection toward restorer lines.

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