scholarly journals The Basic Characteristics of Ferromagnetic Materials Used as Cores in the Magnetic Microdevices

1991 ◽  
Vol 111 (4) ◽  
pp. 262-266
Author(s):  
Yutaka Shimada
Keyword(s):  
Ferromagnetic Materials ◽  
Basic Characteristics ◽  
Materials Used

Vehicle Navigation Using the Adaptive Compass

1986 ◽  
Vol 39 (2) ◽  
pp. 279-285 ◽  
Author(s):  
M. R. Foster
Keyword(s):  
Ferromagnetic Materials ◽  
Magnetic Sensors ◽  
Mathematical Representation ◽  
Vehicle Navigation ◽  
Land Vehicles ◽  
Continued Use ◽  
Materials Used ◽  
Fundamental Physical ◽  
Physical Principles ◽  
Compass System

Magnetic sensors have been used in navigation for many centuries. During this time the effects of magnetic interference from ferromagnetic materials used in vehicle construction have become an increasing problem, and correction techniques have evolved progressively to allow the continued use of magnetic heading detection. The advent of the microprocessor has made it possible to take a fresh look at the problems of compass operation in vehicles and to devise more accurate processes for the correction of the indicated heading. The compass system described in this paper uses a mathematical representation of the magnetic environment based on fundamental physical principles to supply accurate heading information even in the most magnetically hostile land vehicles.

Photovoltaic Solar Modules of Different Types and Designs for Energy Supply

2020 ◽  
Vol 9 (2) ◽  
pp. 74-94 ◽  
Author(s):  
Vladimir Panchenko ◽  
Andrey Izmailov ◽  
Valeriy Kharchenko ◽  
Yakov Lobachevskiy
Keyword(s):  
Solar Cells ◽  
Solar Radiation ◽  
Amorphous Silicon ◽  
Energy Supply ◽  
Russian Research Institute ◽  
Different Types ◽  
Basic Characteristics ◽  
Materials Used ◽  
Russian Research ◽  
Research Institute

The article presents photovoltaic solar modules that have a different design and purpose. The principles of photoconversion in solar cells, materials used in their manufacture and basic characteristics of solar cells are described. Solar cells of amorphous silicon and two-sided solar cells are considered. Photovoltaic planar and matrix solar modules with extended lifetime are presented. Solar tiles and compact folding photovoltaic solar modules, as well as paraboloid concentrator of solar radiation for solar cogeneration plants are presented. Also considered cascade solar cells and solar modules with the decomposition of the light. The considered photovoltaic solar modules are investigated and manufactured in the All-Russian Research Institute of Electrification of Agriculture and Federal Scientific Agroengineering Center VIM, Moscow, Russia.

The magnetic properties of the ferromagnetic materials used for HTS transformers at 77 K

2003 ◽  
Vol 13 (2) ◽  
pp. 2313-2316 ◽  
Author(s):  
Min Chen ◽  
Y.J. Yu ◽  
L.Y. Xiao ◽  
Q.L. Wang ◽  
Wooho Chung ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Ferromagnetic Materials ◽  
Materials Used

Photovoltaic Solar Modules of Different Types and Designs for Energy Supply

2021 ◽  
pp. 731-752
Author(s):  
Vladimir Panchenko ◽  
Andrey Izmailov ◽  
Valeriy Kharchenko ◽  
Yakov Lobachevskiy
Keyword(s):  
Solar Cells ◽  
Solar Radiation ◽  
Amorphous Silicon ◽  
Energy Supply ◽  
Russian Research Institute ◽  
Different Types ◽  
Basic Characteristics ◽  
Materials Used ◽  
Russian Research ◽  
Research Institute

The article presents photovoltaic solar modules that have a different design and purpose. The principles of photoconversion in solar cells, materials used in their manufacture and basic characteristics of solar cells are described. Solar cells of amorphous silicon and two-sided solar cells are considered. Photovoltaic planar and matrix solar modules with extended lifetime are presented. Solar tiles and compact folding photovoltaic solar modules, as well as paraboloid concentrator of solar radiation for solar cogeneration plants are presented. Also considered cascade solar cells and solar modules with the decomposition of the light. The considered photovoltaic solar modules are investigated and manufactured in the All-Russian Research Institute of Electrification of Agriculture and Federal Scientific Agroengineering Center VIM, Moscow, Russia.

scholarly journals Asaia spp., acetic acid bacteria causing the spoilage of non-alcoholic beverages

2019 ◽  
Vol 65 (1) ◽  
pp. 1-5
Author(s):  
Iveta Šístková ◽  
Iveta Horsáková ◽  
Mariana Hanková ◽  
Helena Čížková
Keyword(s):  
Acetic Acid ◽  
Acetic Acid Bacteria ◽  
Alcoholic Beverages ◽  
General Introduction ◽  
Adhesive Properties ◽  
Bioactive Substances ◽  
Microbiological Stability ◽  
Sensory Defects ◽  
Basic Characteristics ◽  
Materials Used

After a general introduction and introduction to acetic acid bacteria, this work focuses on the genus Asaia, which causes sensory defects in non-alcoholic beverages. Asaia representatives have strong adhesive properties for materials used in the food industry, where they subsequently form biofilms and are highly resistant to chemical preservatives. After the basic characteristics of the genus Asaia and its influence on humans, the main part of the paper deals with microbial contamination of beverages by these bacteria. The paper summarizes the knowledge of the influence of packaging materials on the development of defects in beverages and the use of natural bioactive substances and plant extracts as an alternative to maintaining the microbiological stability of beverages.

scholarly journals Suitability of Tyre Derived Geomaterial Mixed with Gravel to be used in Gabion Type Retaining Wall

2019 ◽  
Vol 8 (3S3) ◽  
pp. 412-416
Keyword(s):  
Slope Failure ◽  
Retaining Wall ◽  
Scale Model ◽  
Sieve Analysis ◽  
Soil Movement ◽  
Material Recycling ◽  
Artificial Rainfall ◽  
Basic Characteristics ◽  
Materials Used ◽  
Study Laboratory

The disposal of scrap tyre is a major problem in developing countries. Material recycling is adopted in order to promote safer disposal (beside conventional dump and thermal recycling). Tyre derived geomaterial (TDGM) are proposed to be used in construction of gabion type retaining wall to prevent slope failure that has been a serious geotechnical threat in many countries. The reason of choosing tyre is not only to help in reducing the stockpiling of scrap tyre generated in environmental friendly way but also to reduce the dependency of gravel as the material to filled current gabion wall. In this study, laboratory scale model of gabion wall was developed to protect soil slope. Various proportion mixture of gravel:TDGM were used to construct the gabion wall. The protected slope was subjected to an artificial rainfall of 13mm/hour. Soil movement from commencement of the test until the slope failed was recorded by using transducers. Sieve analysis, specific gravity test and compaction test were conducted beforehand upon all materials used in the study to determine basic characteristics of the materials. From this study, it is found that, due to its lightweight properties, the use of TDGM (tyre chips and tyre buffer) as unique material in gabion wall was insufficient to reduce the displacement of the gabion wall. Larger displacement of gabion wall was recorded in the case of gravel:TDGM mixture was used to fill gabion wall. TDGM need to be mixed with large amount of gravel (at least 80% by volume) to increase the self-weight of the gabion wall and increase its stability.

Friction Coefficient and Worn Surface of Ferromagnetic Materials under Magnetic Fields

2016 ◽  
Vol 848 ◽  
pp. 31-34 ◽  
Author(s):  
Jirasak Tharajak ◽  
Duongruitai Nicomrat
Keyword(s):  
Friction Coefficient ◽  
Magnetic Fields ◽  
Wear Behavior ◽  
Ferromagnetic Materials ◽  
Electrical Circuit ◽  
Wear Protection ◽  
Wear Mode ◽  
Automotive Part ◽  
Materials Used ◽  
Worn Surface

Several machine components including a part of electrical circuit box, an electrical motor and an automotive part were common ferromagnetic materials used under the magnetic fields. In the general, their friction had occurred in the magnetized materials during operation. The friction coefficient of the sample under magnetic fields was different from the sample without magnetic field treatment. Its friction coefficient had correlation with wear behavior of specimens. The wear protection procedures for the ferromagnetic parts during operation are recognized different from others without magnetization. Its friction coefficient was thus used to measure the wear characteristics with a ball on disc friction tester. The microstructure of wear trace and debris was investigated by scanning electron microscope. From the results, the magnetic fields affected the change of friction coefficient. The friction coefficient was decreased with an increasing magnetic intensity. This was because the wear debris was induced and thus decreased the adhesive wear mode during friction test.

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