scholarly journals Borehole logging based on ultrasonic measurements

2020 ◽  
Vol 201 ◽  
pp. 01025
Author(s):  
Vitalii Tron ◽  
Alena Haponenko ◽  
Iryna Haponenko ◽  
Dmytro Paranyuk
Keyword(s):  
Magnetic Permeability ◽  
Additional Data ◽  
Quality Characteristics ◽  
Suggested Method ◽  
High Quality ◽  
Borehole Logging ◽  
Ferromagnetic Component ◽  
Ultrasound Attenuation ◽  
Ultrasonic Measurements ◽  
Electromagnetic Signals

The coefficient of ultrasound attenuation is noted for sufficient sensitivity to provide high-quality characteristics of rocks. Efficiency of transforming electromagnetic signals into elastic oscillations of the ferromagnetic rock and backward depends on magnetic permeability of the rock, i.e. the content of the ferromagnetic component. The suggested method enables receiving additional data on concentration and structure of the ferromagnetic component distributed in the rock. To use the method one does not need either borehole liquid or any specific devices to introduce elastic oscillations into the rock, this fact facilitating its extensive application.

scholarly journals Quality characteristics of spatial furniture

2009 ◽  
pp. 135-145 ◽  
Author(s):  
Dusan Skakic ◽  
Igor Dzincic
Keyword(s):  
Quality Control ◽  
Quality Characteristics ◽  
High Quality ◽  
Production Economy ◽  
Production Practice ◽  
Basic Quality ◽  
Quality Of Products ◽  
Quality Production

The quality of products represents one of the key aims of any modern organized production. In the production practice, it is essential to establish the optimal relationship between quality, production economy and delivery deadlines. Furniture quality is evaluated by three levels and they are: basic quality, high quality and especially high quality. The results presented in this paper are based on the sample measurements of chairs and tables during 2007 and 2008 at the Institute for Furniture Quality Control.

Nondestructive Quality Evaluation From a Horticulturist's Point of View

1978 ◽  
Vol 41 (1) ◽  
pp. 63-66 ◽  
Author(s):  
W. E. BALLINGER ◽  
W. F. McCLURE ◽  
E. P. MANESS ◽  
W. B. NESBITT ◽  
D. E. CARROLL ◽  
...  
Keyword(s):  
Quality Evaluation ◽  
Fruits And Vegetables ◽  
Quality Characteristics ◽  
Point Of View ◽  
High Quality ◽  
Nondestructive Techniques ◽  
Nondestructive Quality

Application of nondestructive sorting of fruits can be direct or indirect. Direct applications involve mainly objective means of establishing grades and quality of fruits and vegetables, as well as use of light-sorting and other nondestructive means for determining when a crop should be harvested or whether it should be marketed fresh or processed immediately. Indirect applications might be termed “research” usage of nondestructive sorting. Plant breeders would find nondestructive techniques useful for rapidly evaluating quality characteristics during the development of high quality cultivars. Physiologists could utilize it to rapidly determine the effects of treatments upon the quality of the commodity. Examples of development of techniques of light-sorting of blueberries and grapes for ripeness are discussed.

Study on Preparation and Dielectric Properties of Nano Ni/SiC Composite Particles

2012 ◽  
Vol 151 ◽  
pp. 218-221
Author(s):  
Hui Xu ◽  
Guo Xing Wang ◽  
Xi Chun Yu ◽  
Mao Sheng Cao
Keyword(s):  
Dielectric Constant ◽  
Magnetic Permeability ◽  
Composite Particles ◽  
High Quality ◽  
Chemical Plating ◽  
Sic Particles ◽  
Plating Method ◽  
Core Shell Structure ◽  
And Performance ◽  
Quality Surface

In order to alleviate the glomeration of nanometer (SiC)p and improve its compatibility and performance, the chemical plating method was applied to get high-quality surface modification, and achieve the Ni/SiC composite particles. The dielectric and absorbing properties of the Ni/SiC particles were studied. The results showed that the modified SiC particles is nearly spherical, homogeneous morphology, and has a distinct core and shell parts. The different contrast of the shell indicated that more Ni is deposited on the (SiC)p surface, and the silicon carbide-nickel core-shell structure is formed. The dielectric constant, dielectric loss and magnetic permeability of the Ni/SiC composite particles have significant improvements compared with those of the original one. The dielectric constant rises about 24%, and R reaches -25.15dB when magnetic permeability up to 16.11GHz.

Satisfaction Measurement in Education

2010 ◽  
pp. 435-466
Author(s):  
Lilyana Nacheva-Skopalik
Keyword(s):  
Quality Management ◽  
Multiple Criteria Decision Making ◽  
Quality Characteristics ◽  
Management Systems ◽  
High Quality ◽  
Quality Management Systems ◽  
Level Of Satisfaction ◽  
E Learning ◽  
Satisfaction Measurement ◽  
Weighting Coefficients

The chapter presents the importance of providing high quality e-learning and the need to apply the requirements of the standards from ISO 9000 series for continual improvement of the quality management systems in education. The work applies the main principles for multiple criteria decision making. An approach for satisfaction measurement is developed. It uses weighting coefficients as qualitative valuation of the importance of the quality characteristics and numerical valuation for the level of satisfaction with the quality characteristics. The suggested approach is suitable to apply for different purposes in education in order to achieve high quality e-learning. It is also suitable to apply to different areas within quality management systems.

Small Apartments As an Investment Medium in the Housing Market

2016 ◽  
Vol 4 (6) ◽  
pp. 50-58
Author(s):  
Рыжкова ◽  
M. Ryzhkova ◽  
Кондратьева ◽  
A. Kondrateva
Keyword(s):  
Housing Market ◽  
Quality Characteristics ◽  
Economic Downturn ◽  
High Quality ◽  
Average Size

In the context of economic downturn, Russian households seek to preserve their savings by investing them on local housing market. The research shows a decrease in the newly-built apartment’s average size that leads to the suggestion that apartment purchases on Russian housing market are in many cases investments by their nature. On the example of the Tomsk primary housing market, we reveal that small-sized apartments as an investment medium has sufficiently high quality characteristics which ensures their liquidity. The availability of investments is guaranteed by reducing the size of an apartment.

Evaluation of piemontese-cross friesian steers and heifers on silage-based diets

1992 ◽  
Vol 1992 ◽  
pp. 194-194
Author(s):  
M.H. Davies ◽  
H.F. Grundy ◽  
S. Page
Keyword(s):  
United States ◽  
Meat Quality ◽  
Production Systems ◽  
The United States ◽  
Quality Characteristics ◽  
Fat Content ◽  
Quality Data ◽  
Low Fat ◽  
High Quality ◽  
Meat Yield

The Piemontese breed is reputed to produce high quality carcasses, but its potential in U.K. beef production systems is unknown. Data from the United States on crossbred progeny (Cundiff et al., 1990) and from Italy on both pure breeds (La Carne Bovina, 1988) and crossbreds (Gigli et al., 1990) shown the Piemontese to be a light boned, low fat, high meat yield breed with a high dressing out proportion. Furthermore the meat quality data show that it produced the most tender meat of all breeds tested and this was achieved at a low marbling fat content. This trial compares the performance of Piemontese x Friesian and Charolais x Friesian steers and heifers when fed on an indoor silage beef system. The meat quality characteristics of the carcasses produced are reported elsewhere (Fisher et al., 1992).

Tolerance Allocation Using Design of Experiments

2015 ◽  
Vol 760 ◽  
pp. 45-50
Author(s):  
Felicia Veronica Banciu ◽  
Ion Grozav ◽  
Cristian Gheorge Turc
Keyword(s):  
Design Of Experiments ◽  
Practical Problem ◽  
Quality Characteristics ◽  
Tolerance Allocation ◽  
Quality Characteristic ◽  
Design Activity ◽  
Tolerance Design ◽  
Mathematical Function ◽  
Optimal Parameters ◽  
High Quality

Tolerance design plays a very important in any manufacturing process because this activity directly influences products cost and quality. In design activity the designer solve the quality problems selecting tight tolerances for components but this generates cost increasing. The practical problem is to assure the high quality characteristics using the maximum tolerances for components that influence them. The paper’s aim is to find optimal parameters setting which assure the desire value of quality characteristics using the DoE (Design of Experiments), and to find a mathematical model and a respective quality characteristic function of the parameters that it was influenced. Using the mathematical function, by imposing the desired tolerance for quality characteristic, it will be allocated the optimal tolerance for components. This tolerance allocation will be verified using Monte-Carlo method.

scholarly journals COMPUTER MODELING AS THE MAIN STAGE OF ENDODONTIC ROOT NEEDLE REFINEMENT

2021 ◽  
pp. 76-82
Author(s):  
LARISA N. KAZAKOVA ◽  
◽  
OKSANA S TERESHCHUK ◽  
ROMAN S. NEBOGATIKOV ◽  
ALEXANDER V. KULIGIN ◽  
...  
Keyword(s):  
English Language ◽  
Quality Characteristics ◽  
Permanent Teeth ◽  
Main Stage ◽  
High Quality ◽  
Face To Face ◽  
Medical Products ◽  
Root Canals ◽  
Huge Variety ◽  
Language Literature

The issue of high-quality root canal treatment in deciduous and permanent teeth is currently highly relevant. There is a huge variety of tools, devices, and medicines that can be used for working with the root canals. It is often the case that in the dental market medical products of various quality characteristics are being offered for a certain manipulation, leaving consumers face to face with a tough choice of what to buy to obtain good results. According to the English-language literature review, evaluation of the technical characteristics of endodontic needles and the results of their use in practice showed a rather large number of negative aspects, which outlines the need to find the ways of endodontic needle refinement.

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