Temat: RESISTANCE - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Pomiary rezystancji przejścia między dwiema nitkami elektroprzewodzącymi
Measurements of transition resistance between two electroconductive threads
Autorzy:: Gniotek, K.
Zięba, J.
Frydrysiak, M.
Tokarska, M.
Powiązania:: https://bibliotekanauki.pl/articles/157806.pdf
Data publikacji:: 2010
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: pomiary rezystancji
rezystancja przejścia
rezystancja linii
resistance measurements
transition resistance
contact point resistance
contact line resistance
Opis:: W artykule opisano sposób pomiaru nowej cechy tekstyliów jaką jest rezystancja punktu styku i linii styku dwóch nitek elektroprzewodzących nazwana łącznie rezystancją przejścia. Cecha ta ma kluczowe znaczenie w systemach tekstronicznych łączących technologie włókiennicze z elektronicznymi i informatycznymi. Podano przykładowe wyniki pomiarów przeprowadzonych na unikatowych stanowiskach pomiarowych. Opisano też weryfikację hipotezy o wpływie długości linii styku na wartość rezystancji przejścia.
The paper describes a method for measuring the new feature of textiles, namely the resistance of a contact point and contact line of two electro conductive threads. It is known as a transition resistance. The feature is of special importance in case of textronic systems combining textile, electronic and informatic technologies. The scheme of electroconductive woven fabric and its electrical model is shown. In the structure the contact point resistance is dominant. The contact line resistance is characteristic for knitted structures. They are presented, too, and their electrical model is described. The analysis of the influence of a lap angle of two electro conductive threads on the contact line length was performed. There are also given some results of measurements taken on unique measuring stands. Verification of the hypothesis concerning the influence of the contact line length on the transition resistance value is described. The hypothesis says that when the contact line length increases the line resistance decreases in the lap angle range from 20° to 120°. For the angle value higher than 120° the phenomenon does not exist. The analysis of this phenomenon will be the subject of next investigations.
Źródło:: Pomiary Automatyka Kontrola; 2010, R. 56, nr 9, 9; 1020-1023
0032-4140
Pojawia się w:: Pomiary Automatyka Kontrola
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Nonviolent civil resistance against military force: The experience of Lithuania in 1991
Autorzy:: Petrauskaite, Audrone
Powiązania:: https://bibliotekanauki.pl/articles/1311093.pdf
Data publikacji:: 2021
Wydawca:: Akademia Sztuki Wojennej
Tematy:: civil resistance
nonviolent resistance
state defense
Opis:: Evolving threats to national security have resulted in the adoption of comprehensive (total) defence concepts by a number of small and medium states. Civil resistance constitutes a considerable part of such concepts, complementing military defence. The historical experience of Lithuania proved the value of nonviolent resistance between 1988 and 1991 for regaining independence, and defending it in January 1991. The aim of this article is to analyse the role of non-violent civil resistance in the national defence system, based on the experience of 13 January 1991 in Lithuania and develop further discussion about the concept of civil resistance. The methodological approach of the article is based on historical and theoretical analysis. This allows the experience of Lithuania to be assessed on the basis of Lithuanian National Security and Defence Strategy and scientific research. Lithuanian non-violent civil resistance in 1988–1991 was successful in terms of strategy, leadership, organisation, planning, non-violence priorities and the number of citizens involved. The leaders of the movement were able to mobilise people into a widespread movement based on their moral authority and value orientations, strongly appealing to different groups in society. Lithuania’s independence was achieved with minimal human sacrifice, preserving the country’s resources and infrastructure. This experience of non-violent civil resistance came to be used by modern state institutions to create strategic documents of the state. In the current situation, it is necessary to focus not only on the knowledge required for state defence and civil resistance, but also on its moral aspects such as values, ethical behaviour, civic and human maturity.
Źródło:: Security and Defence Quarterly; 2021, 34, 2; 38-52
2300-8741
2544-994X
Pojawia się w:: Security and Defence Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Changes in the microbiological and biochemical properties of soil contaminated with zinc
Autorzy:: Wyszkowska, J.
Boros-Lajszner, E.
Borowik, A.
Kucharski, J.
Baćmaga, M.
Tomkiel, M.
Powiązania:: https://bibliotekanauki.pl/articles/1190211.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:: zinc
soil enzymes
microbes resistance
plants resistance
Opis:: Zinc is an essential element for all living organisms, but overexposure to this element can have strongly toxic effects. A pot experiment was carried out to evaluate the influence of different zinc concentrations (0, 100, 300, 600, 1200, 2400, 4800 mg Zn2+ kg-1 of soil) on the soil biological activity by analyzing changes in soil stability over time and by determining the resistance (RS) of microorganisms and soil enzyme activity. The influence of Zn2+ on the growth and development of oat and white mustard was evaluated. Overexposure to zinc inhibited the growth of soil microorganisms, the activity of soil enzymes, and the growth and development of plants. Excessive zinc doses cause lower microbial biodiversity and enzyme activity. Bacteria of the genus Azotobacter were most sensitive and spore-forming oligotrophic bacteria were least sensitive to excessive zinc doses. β-glucosidase was most resistant and arylsulfatase was least resistant to the analyzed element. The resistance of the tested microorganisms and enzymes decreased with an increase in zinc accumulation in the soil environment. White mustard was more sensitive to zinc contamination than oat and zinc doses of 2400 and 4800 mg Zn2+ kg-1 led to the death of white mustard plants. The results of this study indicate that soil contamination with zinc poses a threat for living organisms. In areas with a higher risk of zinc deposition, the content of this element in soils should be monitored more frequently than prescribed by environmental protection regulations.
Źródło:: Journal of Elementology; 2017, 22, 2; 437-451
1644-2296
Pojawia się w:: Journal of Elementology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Electrolyte coatings of chromium with nanodiamonds on sintered steels
Autorzy:: Gidikova, N.
Valov, R.
Petkov, V.
Salamci, E.
Bilgili, Z.
Unal, R.
Powiązania:: https://bibliotekanauki.pl/articles/391723.pdf
Data publikacji:: 2017
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Odlewnictwa
Tematy:: sintered products
chromium coating
wear resistance
corrosion resistance
Opis:: Sintered ferrous components were coated with electrochemical chromium coatings modified with nanodiamond particles. The nanodiamond particles were produced by detonation synthesis with an average grain size 8 nm. The objective of this study was to determine the tribological properties and the corrosion resistance of sintered iron samples coated with an electrochemically deposited chromium layer modified with nanodiamond particles. The thickness of the obtained composite coatings was more than 25 μm. The microstructure and microhardness were determined by metallographic methods. The mechanical and chemical properties of the samples were compared to uncoated samples prepared from the same iron powder. The microhardness was 5 times higher, the wear resistance increased 6 times and the corrosion resistance in 0.1 M NaCl solution was 10 times higher.
Źródło:: Prace Instytutu Odlewnictwa; 2017, 57, 4; 333-336
1899-2439
Pojawia się w:: Prace Instytutu Odlewnictwa
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Comprehensive tests of sintered carbides in the aspect of conical picks operational life
Autorzy:: Grzegorzek, Wojciech
Jaszczuk, Marek
Powiązania:: https://bibliotekanauki.pl/articles/1402296.pdf
Data publikacji:: 2020
Wydawca:: Politechnika Wrocławska. Wydział Geoinżynierii, Górnictwa i Geologii. Instytut Górnictwa
Tematy:: conical picks
sintered carbide
fracture resistance
abrasion resistance
Opis:: The results of tests on the brittle fracture and abrasive wear of conical picks sintered carbides taking into account the size of tungsten carbide grains and the content of cobalt are presented. The tests were carried out on the innovative laboratory stand for tribological tests using the method for determination of resistance to edge fracture and abrasive wear. Test results have shown that an increase in the size of tungsten carbide grains, and thus an increase in the cobalt content, reduces the wear resistance and increases the resistance to brittle fracture. The results of the tests of sintered carbides inserts in the aspect of their durability are presented.
Źródło:: Mining Science; 2020, 27; 119-131
2300-9586
2353-5423
Pojawia się w:: Mining Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: A Three-dimensional Model of Resistance in Education
Autorzy:: Babicka-Wirkus, Anna
Powiązania:: https://bibliotekanauki.pl/articles/1969549.pdf
Data publikacji:: 2018-06-30
Wydawca:: Wydawnictwo Adam Marszałek
Tematy:: three-dimensional model of resistance
action dimension of resistance
motivation dimension of resistance
space dimension of resistance
education
Opis:: The article attempts to systematize the issue of resistance manifestations in the context of education. The analyses presented in the article are an introduction to designing a three-dimensional model of resistance, which enables to examine acts of resistance from the angle of their three intertwined aspects: action, space and motivation. They are basic layers determining the analysis range of particular displays of resistance in education and society. These dimensions were developed based on the analysis of theoretical and empirical literature regarding the issue of resistance and on the author’s own research on this phenomenon.
Źródło:: The New Educational Review; 2018, 52; 43-54
1732-6729
Pojawia się w:: The New Educational Review
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Physico-mechanical properties of Ti-containing chromium-free conversion coatings on zinc coated steel
Autorzy:: Winiarski, J.
Szczygieł, B.
Powiązania:: https://bibliotekanauki.pl/articles/115610.pdf
Data publikacji:: 2011
Wydawca:: Fundacja na Rzecz Młodych Naukowców
Tematy:: zinc coating
corrosion resistance
conversion coating
adhesion
wear resistance
Opis:: This work aims at physico-mechanical properties of the Ti-containing chromium-free conversion coatings on zinc coated steel. The wear resistance of the whole conversion coating/zinc coating system depends on the deposition time of these coatings. As the duration of the deposition of conversion coatings containing titanium increases, the wear resistance of the samples decreases. The reason for this deterioration in wear resistance is likely worse adhesion of these coatings obtained at longer deposition times. The best adhesion to the zinc substrate posses coatings deposited for 20 s.
Źródło:: Challenges of Modern Technology; 2011, 2, 4; 27-30
2082-2863
2353-4419
Pojawia się w:: Challenges of Modern Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Resistance to the tetracyclines and macrolidelincosamide-streptogramin group of antibiotics and its genetic linkage - a review
Autorzy:: Marosevic, Durdica
Kaevska, Marija
Jaglic, Zoran
Powiązania:: https://bibliotekanauki.pl/articles/989867.pdf
Data publikacji:: 2017
Wydawca:: Instytut Medycyny Wsi
Tematy:: antibiotics
genetic determinants of resistance
transposons
transmission of resistance
Opis:: An excessive use of antimicrobial agents poses a risk for the selection of resistant bacteria. Of particular interest are antibiotics that have large consumption rates in both veterinary and human medicine, such as the tetracyclines and macrolidelincosamide-streptogramin (MLS) group of antibiotics. A high load of these agents increases the risk of transmission of resistant bacteria and/or resistance determinants to humans, leading to a subsequent therapeutic failure. An increasing incidence of bacteria resistant to both tetracyclines and MLS antibiotics has been recently observed. This review summarizes the current knowledge on different tetracycline and MLS resistance genes that can be linked together on transposable elements.
Źródło:: Annals of Agricultural and Environmental Medicine; 2017, 24, 2
1232-1966
Pojawia się w:: Annals of Agricultural and Environmental Medicine
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Electrical and thermal analysis for the copper removal process in an electric furnace
Autorzy:: Zybała, Radosław
Golak, Sławomir
Sak, Tomasz
Madej, Piotr
Powiązania:: https://bibliotekanauki.pl/articles/29519766.pdf
Data publikacji:: 2023
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: numerical modelling
copper removal
electric resistance furnace
contact resistance
Opis:: The article presents an electrical model of a resistance furnace with two electrodes encompassing the generation of Joule heat. The characteristic feature of this model was the consideration of contact resistance between the electrodes and the slag. A series of analyses were conducted based on this model. Firstly, the impact of contact resistance on current flow and Joule heat generation in the furnace was assessed, demonstrating its significant importance. A separate group of analyses focused on the spatial configuration of the furnace and its interaction with the aforementioned phenomena. The impact of symmetric and asymmetric electrodes immersion was analysed. In addition to the impact on current flow, the study also demonstrated the influence on the natural convection mechanism described by the proposed measures of the spatial non-uniformity of heat generation. The research showed that symmetric electrode immersion allows for the generation of more heat in the system at a constant voltage. Asymmetric electrodes immersion causes an increase in the non-uniformity of heat generation, which translates into a higher intensity of natural convection.
Źródło:: Computer Methods in Materials Science; 2023, 23, 4; 31-44
2720-4081
2720-3948
Pojawia się w:: Computer Methods in Materials Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Characterization of the suppressor gene of powdery mildew resistance gene Pm8 in common wheat [Triticum aestivum L.] cv. Regina
Autorzy:: Hanusova, R
Bartos, P
Zeller, F J
Powiązania:: https://bibliotekanauki.pl/articles/2046597.pdf
Data publikacji:: 1997
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: yellow rust resistance
resistance gene Pm8
powdery mildew
wheat
suppressor gene
leaf rust resistance
Triticum aestivum
stem rust resistance
Opis:: The Czech winter wheat cv. Regina which does not possess specific genes for powdery mildew resistance except Pm5 was crossed with the cvs. Florida, Tjelvar, Agra, Olymp and Sabina, all possessing T1BL-1RS and the dominant suppressor SuPm8, with Riebesel 47/51 possessing substitution 1R-1B and SuPm8 and with the T1BL-1RS cvs. Sparta, Iris, Mona without SuPm8. Powdery mildew isolates avirulent on Pm8 and virulent on other Pm genes were used in the trials. Tests for resistance were carried out either on seedlings at the first leaf stage or on detached leaves cultured on benzimidazolagar. No segregation for resistant plants in F₂ of all crosses of the cv. Regina with cultivars possessing T1BL-1RS and SuPm8 indicates that Regina has SuPm8. The segregation ratio 3 resistant: 13 susceptible in the F₂ population of crosses between the cv. Regina and cultivars possessing T1BL-1RS and no SuPm8 also confirms the presence of SuPm8 in the cv. Regina. The obtained results also indicate that expression of Pm2 and Pm4b is not affected by SuPm8 and that SuPm8 does not affect stem rust resistance gene Sr31 located on 1RS segment.
Źródło:: Journal of Applied Genetics; 1997, 38, 1; 11-17
1234-1983
Pojawia się w:: Journal of Applied Genetics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: An AC measurement system for use with resistive temperature sensors
Autorzy:: Rybski, R.
Walkowiak, A.
Powiązania:: https://bibliotekanauki.pl/articles/114103.pdf
Data publikacji:: 2016
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: AC resistance thermometry
resistance ratio measurement
complex voltage ratio
Opis:: In the paper, a measurement system based on a universal commercial measuring module of alternating current for accurate temperature measurement by means of resistive temperature sensors is described. There are presented the research results on the basis of which the metrological properties of the system were evaluated. It was shown that this relatively simple measurement system is a competitive solution compared with the most accurate commercial DC measurement systems.
Źródło:: Measurement Automation Monitoring; 2016, 62, 8; 259-261
2450-2855
Pojawia się w:: Measurement Automation Monitoring
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Sowieckie represje wobec polskiego podziemia niepodległościowego w Warszawie i okolicach na przełomie 1944 i 1945 roku
Autorzy:: Kalbarczyk, Sławomir
Powiązania:: https://bibliotekanauki.pl/articles/477299.pdf
Data publikacji:: 2002
Wydawca:: Instytut Pamięci Narodowej, Komisja Ścigania Zbrodni przeciwko Narodowi Polskiemu
Tematy:: Soviet repressions
anti-communist resistance
resistance movement
Warsaw
1944
1945
Źródło:: Pamięć i Sprawiedliwość; 2002, 2; 139-155
1427-7476
Pojawia się w:: Pamięć i Sprawiedliwość
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Drug resistance profile and detection of genes responsible for methicillin resistance in Staphylococcus aureus isolated from municipal waste
Autorzy:: Wolny-Koładka, Katarzyna
Powiązania:: https://bibliotekanauki.pl/articles/2203548.pdf
Data publikacji:: 2023
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: drug resistance
mecA gene
methicillin resistance
municipal waste
Staphylococcus aureus
Opis:: Currently, we are facing the ever-increasing phenomenon of bacteria being resistant to antibiotics. It is the consequence of excessive and incorrect use of drugs. The phenomenon is a global problem affecting bacteria both in their hospital population and in the natural environment. Municipal waste is an environment conducive to the development of microorganisms, therefore it contains various groups of bacteria, including drug-resistant staphylococci. The aim of the study was to identify species of bacteria, determine their antibiotic resistance, and assess the occurrence of genes responsible for methicillin resistance in Staphylococcus aureus isolated from mixed municipal waste. Strains were isolated by Koch’s serial dilution method with the use of microbiological media. Species were identified using the MALDI TOF-MS technique, whereas the drug resistance profile was determined by disk diffusion and molecular PCR methods. 250 isolates of S. aureus were collected. The highest resistance found was to cefoxitin, erythromycin and tetracycline. Among the bacteria collected, resistance to 1, 2, 3 or 4 antibiotics at the same time was the most common, with a maximum of 10. Additionally, 45 (18%) MDR (multidrug-resistant) isolates were detected. Methicillin resistance was found by the disk diffusion test in 60 (24%) strains, while the mecA gene was detected in as many as 180 (72%) isolates.
Źródło:: Journal of Water and Land Development; 2023, 56; 136--141
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Host adaptation in Phytophthora infestans: a review from a population biology perspective
Autorzy:: Andrivon, Didier
Corbière, Roselyne
Lebreton, Lionel
Pilet, Fabian
Montarry, Josselin
Pellé, Roland
Ellissèche, Daniel
Powiązania:: https://bibliotekanauki.pl/articles/2198969.pdf
Data publikacji:: 2004-12-20
Wydawca:: Instytut Hodowli i Aklimatyzacji Roślin
Tematy:: aggressiveness
host resistance
late blight
non-host resistance
specificity
virulence
Opis:: Phytophthora infestans behaves in natural and agricultural ecosystems as a biotrophic pathogen, although it can be cultured on artificial media. Pathogenicity and host adaptation are therefore essential traits to understand its biology and to come up with durable, efficient management of late blight. The present review focuses on adaptation to host species and host cultivars, and to both qualitative and quantitative types of resistance. It also discusses some of the patterns and population mechanisms involved in this adaptation, such as selection, genetic drift and migration. This highlights the need for an in-depth analysis of each local situation to accurately describe and understand the mechanisms responsible for observed population displacements.
Źródło:: Plant Breeding and Seed Science; 2004, 50; 15-27
1429-3862
2083-599X
Pojawia się w:: Plant Breeding and Seed Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Hybrid nanocomposite layers Ni/Al2O3/C graphite produced by electrocrystallization method
Autorzy:: Bartoszek, W.
Trzaska, M.
Powiązania:: https://bibliotekanauki.pl/articles/354819.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: hybrid composite layers
electrocrystallization
nickel layers
wear resistance
corrosion resistance
Opis:: The paper presents the results of studies of hybrid composite layers Ni/Al₂O₃/C_graphite produced by the electrodeposition method. Three variants of hybrid composite layers were prepared in electrolyte solutions with the same amounts of each dispersion phases which were equal to 0.25; 0.50 and 0.75 g/dm³. The structure of Ni/Al₂O₃/C_graphite layers as well as the Al₂O₃ and graphite powders, which were used as dispersion phases was investigated. The results of morphology and surface topography of produced layers are presented. The modulus of elasticity and microhardness of the material of produced layers were determined by DSI method. Tribological and corrosion resistance tests of produced layers were carried out. Realized studies have shown that the material of the produced layers is characterized by a nanocrystalline structure. Incorporation of dispersion phases into the nickiel matrix increases the degree of surface development of layers. Ni/Al₂O₃/C_graphite layers are characterized by high hardness and abrasion resistance by friction, furthermore, they provide good corrosion protection for the substrate material.
Źródło:: Archives of Metallurgy and Materials; 2019, 64, 1; 167-173
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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