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Tytuł:
Zróżnicowanie reakcji odpornościowej wybranych odmian tytoniu (Nicotiana tabacum) w zależności od użytego izolatu wirusa Y ziemniaka (PVY)
Diversification of resistance response of selected tobacco cultivars (Nicotiana tabacum) depending on the used potato virus Y isolates
Autorzy:
Depta, Anna
Doroszewska, Teresa
Czubacka, Anna
Powiązania:
https://bibliotekanauki.pl/articles/2147936.pdf
Data publikacji:
2020-09
Wydawca:
Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
Tematy:
izolaty PVY
gen va
tolerancja
PVY isolates
va gene
tolerance
Opis:
Wirus Y ziemniaka (Potato virus Y, PVY) powoduje brunatną nekrozę nerwów liści tytoniu. W obrębie gatunku Nicotiana tabacum odporność na PVY warunkowana jest pojedynczym recesywnym genem va powstałym w wyniku delecji w genie podatności Va. Odporność tę posiada wiele odmian uprawnych tytoniu, jednak może być ona przełamywana przez zjadliwe izolaty PVY, dlatego konieczne jest poszukiwanie nowych źródeł odporności lub łączenie czynników odporności już poznanych. Celem pracy była identyfikacja odmian mających odporność typu va oraz ocena jej skuteczności wobec czterech izolatów PVY, a także poszukiwanie nowych czynników odporności. Przebadano odporność 25 odmian tytoniu poprzez wykonanie testów biologicznych metodą inokulacji izolatami PVY w warunkach szklarniowych oraz zastosowanie testu DAS-ELISA w celu potwierdzenia obecności wirusa w inokulowanych roślinach. Identyfikację genu va prowadzono metodą PCR poprzez amplifikację dwóch markerów genu podatności Va. W odmianach posiadających gen odporności va nie dochodziło do amplifikacji produktów. Najwyższą odpornością charakteryzowała się odmiana VAM, która nie została porażona słabszymi izolatami, chociaż izolaty silne spowodowały nekrozę nerwów. Niższą odpornością cechowało się 6 odmian, które nie wykazały objawów chorobowych po zastosowaniu izolatu słabego. Pozostałe odmiany posiadające czynnik typu va zostały porażone przez wszystkie izolaty. Kolejnych pięć odmian, posiadających gen podatności Va, wykazało objawy tolerancji na zakażenie użytymi izolatami PVY. Odmiana Węgierski Ogrodowy, pomimo obecności genu podatności (Va), nie została porażona przez izolat słaby.
Potato virus Y (PVY) causes tobacco veinal necrosis. It be-longs to the group of ten most dangerous plant viruses respon-sible for large economic losses. Within the species Nicotiana tabacum, the resistance to this virus is conditioned by the single recessive va gene resulting from a deletion in the susceptibility Va gene. Many tobacco cultivars have this resistance, including VAM, Wiślica and Virginia SCR (V. SCR). However, their resist-ance is overcome by the virulent PVY isolates, so it is necessary to search for new sources of resistance or combine ones already known. The aim of the study was to identify cultivars with va resist-ance, and to assess its effectiveness depending on the used PVY isolate. Research also included the search for new resistance fac-tors within Nicotiana tabacum cultivars. Twenty five tobacco cultivars were tested for resistance to PVY in biological tests by artificial inoculation under greenhouse conditions. Four virus iso-lates with different levels of virulence were used for the studies. After four weeks, disease symptoms were observed, and DAS-ELISA tests were performed using specific antibodies to confirm the presence of the virus in plants. The tested cultivars showed a different degree of PVY susceptibility depending on the used isolate. The identification of the va gene was carried out by using PCR for amplification of two markers of the length 146 and 402 bp. The presence of amplicons indicated the presence of Va sus-ceptibility gene, while cultivars with the va resistance gene did not amplify the products. The highest resistance was character-istic of cv. VAM which was not infected with isolates IUNG 23 and IUNG 17, defined as weak and medium, although the remain-ing isolates, described as strong (IUNG 22 and IUNG20), caused vein necrosis and the presence of the virus was confirmed in plant tissues by a positive DAS-ELISA test result. Six cultivars that did not show disease symptoms only after applying the weak isolate, had a slightly lower resistance. Other cultivars with va resistance were infected by all used PVY isolates. Another five cultivars, after infection with four isolates, showed symptoms of tolerance, i.e. vein clearing and chlorotic spots of a leaf blade, but they did not have vein necrosis, in spite of that molecular tests confirmed the presence of Va susceptibility gene. Moreover, interesting re-sults were noted for cv. Węgierski Ogrodowy, that, despite the presence of the susceptibility gene, was not infected by weak isolate IUNG23. The last group included susceptible cultivars that reacted with vein necrosis to all used PVY isolates. Since virulent PVY isolates are able to break va resistance, the knowledge of the nature and stability of the resistance of cul-tivars is particularly important, especially within Polish cultivars. In addition, the rising number of necrotic isolates in Poland and in the world, capable of breaking existing sources of resistance, can cause an increased use of tolerant cultivars in tobacco breeding.
Źródło:
Polish Journal of Agronomy; 2020, 42; 3-13
2081-2787
Pojawia się w:
Polish Journal of Agronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Real-Time S-Parameter Imaging System
Autorzy:
Naik, P. S.
Cheung, C. K.
Beling, C. D.
Fung, S.
Powiązania:
https://bibliotekanauki.pl/articles/2043310.pdf
Data publikacji:
2005-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.30.Va
78.70.Bj
Opis:
Obtaining a lateral S-parameter image scan from positrons implanted into semiconductor devices can be a helpful research tool both for localizing device structures and in diagnozing defect patterns that could help interpret function. S-parameter images can be obtained by electromagnetically rastering a variable energy positron beam of small spot size across the sample. Here we describe a general hardware and software architecture of relatively low cost that has recently been developed in our laboratory which allows the whole sub-surface S-parameter image of a sample or device to be obtained in real time. This system has the advantage over more conventional sequential scanning techniques of allowing the operator to terminate data collection once the quality of the image is deemed sufficient. As an example of the usefulness of this type of imaging architecture, S-parameter images of a representative sample are presented at two different positron implantation energies.
Źródło:
Acta Physica Polonica A; 2005, 107, 5; 761-768
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Soil Contamination by Lead, Nickel and Cadmium and VA-Mycorrhizal Fungi on Yield and Heavy Metal Concentration in Roots and Aboveground Biomass of Oat
Wpływ skażenia gleby ołowiem, niklem i kadmem oraz VA-mikoryzy na plonowanie i zawartość metali ciężkich w korzeniach i częściach nadziemnych owsa
Autorzy:
Zalewska, M.
Powiązania:
https://bibliotekanauki.pl/articles/387821.pdf
Data publikacji:
2010
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
nikiel
kadm
ołów
zanieczyszczenie gleby
VA-mikoryza
owies
nickel
cadmium
lead
soil contamination
VA-mycorrhiza
oat
Opis:
An exact two-factorial pot experiment was conducted in an environmental test chamber at the Institute of Plant Nutrition (Justus-Liebig-Universitat) in Giessen, Germany. Experimental factor l was soil contaminated by Pb, Ni and Cd, and experimental factor 2 was plant infection by VA and mycorrhizal fungi the introduction of cadmium, nickel and lead into the soil system. Soil contamination by heavy metals at a level of 50 mg Ni, 10 mg Cd and 100 mg Pb per kg of soil significantly decreased the weight of roots and aboveground parts of oat plants. Nickel, cadmium and lead were accumulated primarily in the roots, and their translocation to the aboveground parts was limited. This suggests that plants possess effective mechanisms involved in the detoxification of heavy metals in the roots. Root infection by mycorrhizal fungi had no significant effect on the concentrations of nickel, cadmium and lead in the roots and aboveground parts of plants, or on oat yield. Nickel and cadmium were readily absorbed by the roots. The nickel and cadmium content of roots was high in contaminated than in natural soil, reaching 440.6 mg o kg-1 d.m. and 110.9 mg o kg-1 d.m., respectively. Lead was found to be ąuite immobile. Following the introduction of the largest amount of this heavy metal into the soil system, Pb content reached 18.5 mg o kg-1 d.m. in the roots and only 3.4 mg o kg-1 d.m. in the green matter of oat. Plants grown in soil contaminated by nickel, cadmium and lead had significantly smaller length of roots (by 47 % on average), compared with plants grown in soil with a natural heavy metal content.
Badania wykonano jako dwuczynnikowe doświadczenie wazonowe przeprowadzone w klimatyzowanej komorze Instytutu Żywienia Roślin Uniwersytetu Justusa Liebiga w Giessen. Pierwszym czynnikiem doświadczalnym było zanieczyszczenie gleby kadmem, niklem i ołowiu, zaś drugim infekcja roślin grzybami arbuskularnymi (VAM). Zanieczyszczenie gleby metalami ciężkimi na poziomie 50 mg Ni, 10 mg Cd i 100 mg Pb na kg gleby istotnie zmniejszyło masę korzeni i części nadziemnych owsa. Nikiel, kadm i ołów kumulowane były przede wszystkim w korzeniach, a ich transport do części nadziemnych został silnie ograniczony. Sugeruje to istnienie sprawnych mechanizmów detoksykacji metali ciężkich w korzeniach, uruchamianych przez samą roślinę. Infekcja korzeni grzybami mikoryzowymi nie różnicowała istotnie plonów roślin oraz nie wpłynęła znacząco na koncentrację niklu, kadmu i ołowiu w korzeniach i częściach nadziemnych. Nikiel i kadm przenikał do korzeni z dużą łatwością. W glebie skażonej zawartość niklu i kadmu w korzeniach była duża i wynosiła 440,6 mg Ni o kg-1 s.m. i 110,9 mg Cd o kg-1 s.m. Ołów okazał się natomiast bardzo mało ruchliwym pierwiastkiem. Pomimo zastosowania dużej ilości tego metalu w celu zanieczyszczenia gleby, zawartość Pb w korzeniach wynosiła 18,5 mg o kg-1 s.m. i tylko 3,4 mg o kg-1 s.m. zielonki owsa. Rośliny uprawiane na glebie zanieczyszczonej niklem, kadmem i ołowiem miały znacznie mniejszą długość korzeni w porównaniu z roślinami uprawianymi na glebie o naturalnej zawartości metali ciężkich.
Źródło:
Ecological Chemistry and Engineering. A; 2010, 17, 4-5; 541-548
1898-6188
2084-4530
Pojawia się w:
Ecological Chemistry and Engineering. A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pattern Recognition Algorithm for Eye Tracker Sensor Video Data Analysis
Autorzy:
Murawski, K.
Różanowski, K.
Powiązania:
https://bibliotekanauki.pl/articles/1399387.pdf
Data publikacji:
2013-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.30.Sy
42.30.Va
07.05.Pj
Opis:
The aim of the paper is to discuss research conducted at the Military University of Technology as well as the Military Institute of Aviation Medicine. The essence of the research is to develop a pattern recognition algorithm for the analysis of data received from an eye tracker sensor. Data analysis can be done using computer vision algorithms. In the article the state of the art pattern recognition algorithms were presented. Particular attention was paid to the possibilities and limitations of their use. The main part of the paper is the presentation of the author's pattern recognition algorithm. In the paper we have also shown the results obtained by other techniques of image processing, which are frequently used to determine the position of the pupil of the eye on the image.
Źródło:
Acta Physica Polonica A; 2013, 124, 3; 509-512
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Infrared Sensor for Monitoring Meibomian Gland Dysfunction
Autorzy:
Murawski, K.
Różycki, R.
Murawski, P.
Matyja, A.
Rękas, M.
Powiązania:
https://bibliotekanauki.pl/articles/1399390.pdf
Data publikacji:
2013-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.30.Sy
07.07.Df
42.30.Va
Opis:
Meibomian gland dysfunction is one of the most common eye disorders observed in clinical practice. It applies to almost 50% of the population, especially people using contact lenses. It is believed that meibomian gland dysfunction is the most common cause of abnormal stability and integrity of the tear film. Despite this, there is no commercially available equipment for the diagnosis. The article proposes the construction of an optical sensor and a computer system for the rapid, non-invasive diagnosis of meibomian gland dysfunction. The designed hardware and software as well as preliminary results of clinical research are also described.
Źródło:
Acta Physica Polonica A; 2013, 124, 3; 517-520
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biomedical Optical Applications of Liquid Crystal Devices
Autorzy:
Abdulhalim, I.
Moses, R.
Sharon, R.
Powiązania:
https://bibliotekanauki.pl/articles/1814044.pdf
Data publikacji:
2007-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.30.Va
42.70.Df
42.81.Gs
Opis:
Liquid crystals exhibit large electro-optic effects which make them useful for a variety of applications as fast, compact, and tunable spectral filters, phase modulators, polarization controllers, and optical shutters. They were largely developed for liquid crystal displays and in the last decade for optical telecommunications, however their application in the field of optical imaging just started to emerge. These devices can be miniaturized thus have a great potential useful in miniature optical imaging systems for biomedical applications. Using a collection of tunable phase retarders one can perform: 1. Stokes parameters imaging for skin and eye polarimetric imaging; 2. Tunable filtering to be used for hyperspectral imaging, fluorescence microscopy, and frequency domain optical coherence tomography; 3. Adaptive optical imaging and eye aberrations correction; 4. Phase shift interferometric imaging; 5. Variable frequency structured illumination microscopy. Basic optics of liquid crystals devices is reviewed and some novel designs are presented in more detail when combined to imaging systems for a number of applications in biomedical imaging and sensing.
Źródło:
Acta Physica Polonica A; 2007, 112, 5; 715-722
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Recent Advances in Acousto-Optic Instrumentation for Astronomy
Autorzy:
Yushkov, K.
Anikin, S.
Chizhikov, S.
Esipov, V.
Kolesnikov, A.
Makarov, O.
Molchanov, V.
Potanin, S.
Tatarnikov, A.
Powiązania:
https://bibliotekanauki.pl/articles/1383428.pdf
Data publikacji:
2015-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
07.60.Rd
42.30.Va
42.79.Jq
Opis:
We report recent progress and new developments of acousto-optic imaging spectrometers and spectropolarimeters for astronomical observations. Prototype performance of hyperspectral visible-to-near-UV and visible-to-near-IR imaging systems is demonstrated. Wide-angle acousto-optic paratellurite monochromators were designed and fabricated. The problem of artifacts in spectral images of celestial objects is studied.
Źródło:
Acta Physica Polonica A; 2015, 127, 1; 81-83
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Infrared Sensor for Eye Tracking in a Harsh Car Environment
Autorzy:
Różanowski, K.
Murawski, K.
Powiązania:
https://bibliotekanauki.pl/articles/1418034.pdf
Data publikacji:
2012-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.30.Sy
42.30.Tz
42.30.Va
Opis:
The paper presents the optical sensor which is built for EyeTracker operating in car harsh environment. The sensor is based on USB high speed video infrared camera. Additional hardware was designed for control and emission of infrared light as well. The designed hardware and software of the sensor are described in the paper. Some results of work, including video processing, are also presented.
Źródło:
Acta Physica Polonica A; 2012, 122, 5; 874-879
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optical Sensor to Monitor Pupillary Light Reflex
Autorzy:
Różanowski, K.
Murawski, K.
Powiązania:
https://bibliotekanauki.pl/articles/1399401.pdf
Data publikacji:
2013-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.66.Ct
42.30.Va
07.05.Pj
Opis:
The aim of the paper is to describe design of an optical sensor intended to analyze pupillary light reflex. It also presents the results of physiological adaptation mechanisms in human eye, i.e. response of the iris to changes in the intensity of light that falls on the retina of the eye under conditions of sensory deprivation. Pupillary light reflex is a closed loop nerve reflex. It controls the amount of light that reaches the retina. Based on the test results, an optical sensor was designed, fabricated and correctly calibrated. In comparative tests with the use of $F^2D$ Fit-For-Duty, a commercial system by AMTech, selected pupillographic parameters were primarily evaluated (baseline pupil diameter, oscillations, reflex latency, maximum reaction time, pupil constriction time, pupil dilation time, and constriction amplitude) under conditions of diminished alertness, reduced ability to concentrate, increasing fatigue, and drowsiness. The solution comes as part of a mobile pupillography device intended to be assembled in cars and airplanes to identify conditions of lower alertness, reduced ability to concentrate, increasing fatigue and drowsiness in drivers, pilots and traffic controllers, and to trigger alarm and preventive measures, if necessary.
Źródło:
Acta Physica Polonica A; 2013, 124, 3; 558-562
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
INTERREG a funds as an instrument for managing a border region
Autorzy:
Malkowska, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/321852.pdf
Data publikacji:
2019
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
INTERREG VA programmes
European Union funds
innovative project
management
cross-border cooperation
programy INTERREG VA
fundusze Unii Europejskiej
projekt innowacyjny
zarządzanie
współpraca transgraniczna
Opis:
The article focuses on the financing of border regions from the point of view of the use of selected EU funds. It analyses INTERREG A funds designed to support cross-border cooperation. The purpose of the research was to identify and analyse innovative projects undertaken under INTERREG A programmes in Polish-German areas. The territorial scope of the study corresponded to the assisted area outlined for the purposes of these programmes. It included Zachodniopomorskie Voivodeship on the Polish side, and Mecklenburg-Vorpommern and Brandenburg on the German side. The temporal scope covered three programming periods: 2000-2006 (Poland only joined it in 2004), 2007-2013 and 2014-2020 (still ongoing). The studies were based on an analysis of material obtained from INTERREG A online project databases, as well as the available reports and other sources. The results confirmed that INTERREG A programmes provided opportunities for innovative projects, the share of which, among all the projects completed was small, but essential from the point of view of the development of a cross-border region. The innovative projects were mostly in the field of healthcare. The structure of the entities performing such projects was diversified, although higher education institutions prevailed.
Źródło:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska; 2019, 139; 289-300
1641-3466
Pojawia się w:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative analysis of the effect of vernonia amygdaline on subsea transmission pipeline
Autorzy:
Samson, N.
Nwaoha, T. C.
Emmanuel, U. O.
Powiązania:
https://bibliotekanauki.pl/articles/95356.pdf
Data publikacji:
2018
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
pipelines
corrosion
environment
sea water
inhibitors
specimen
VA solution
corrosion rate
weight loss
rurociągi
korozja
środowisko
woda morska
inhibitory
próbka
roztwór VA
szybkość korozji
ubytek masy
Opis:
Subsea transmission pipelines (STP) are designed to transport liquids, gases or solid/liquid mixtures over some distances. STP are buried underground or submerged in water for transportation of natural oil and gas (O&G) products. A Vernonia amygdalina (VA) solution is prepared to act as an inhibitor. The specimens are kept in a workable state. Steps are taken to prepare each specimen. All cuts and sheared edges were ground out to prevent them from becoming sites for preferential attack. The finishing of the specimen surface with grit abrasive paper (sand paper) and rinsing of the specimens in distilled water are carried out. Then, degreasing of specimen in acetone and air-dried are carried out. Upon drying, the specimens are immediately weighed to obtain their initial weights. Twelve specimens are used for the test as follows: 6 Aluminum (Al); and 6 mild steel (MS) samples. With a 2M concentration of VA solution, the MS and Al samples are immersed in different plastic containers containing 400ml of seawater with pH value of 7.25 with no (0%) inhibitor added to it. A 5% (400ml) of the VA solution is poured into the measuring cylinder for each sample-Al and MS. The specimens are suspended by the strings and completely immersed in the different percentage test media. The same procedure is carried out for each of the different percentages (i.e. 10%, 15%, 20%, and 25%) and a total of 12 solutions are set up. The seawater used has 7.25 pH. At the end of every week (168 hours), the specimens are removed from the corrosive media. Observation and recording of appearance of the specimen, noting sites are done to analyze the effect of the VA solution on the AL and MS used for the STP. Values are obtained and graphs plotted on weight loss (WL) and corrosion rate (CR) versus the time. It is observed that the VA solution has different effect on the STP at different time and percentage of the VA solution introduced into the environment of the pipe. It was also observed that optimum inhibition of coupons is obtained between 15-25% of VA solution during the first four weeks of testing. At the fifth week, the inhibitor was gradually losing its effectiveness. This means that more inhibitor needs to be added at regular intervals in order to sustain the effectiveness of the inhibitor.
Źródło:
Journal of Mechanical and Energy Engineering; 2018, 2, 4; 269-276
2544-0780
2544-1671
Pojawia się w:
Journal of Mechanical and Energy Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Adaptive Modulation Amplitude in 2D Spectral-Spatial EPR Imaging
Autorzy:
Czechowski, T.
Samolej, A.
Baranowski, M.
Boś-Liedke, A.
Chlewicki, W.
Jurga, J.
Tadyszak, K.
Powiązania:
https://bibliotekanauki.pl/articles/1030422.pdf
Data publikacji:
2018-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
76.30.-v
42.30.Wb
75.20.-g
42.30.Va
Opis:
A study concerning the image quality in Electron Paramagnetic Resonance Imaging (EPRI) in 2D spectral-spatial (2D SSI) experiments is presented. The aim of the measurements is to improve the signal to noise ratio (SNR) of the projections by applying a more consciously selected modulation amplitude parameter. Data is gathered by applying three constant and one adaptive modulation amplitude. The three fixed modulation amplitudes values are leading to undermodulated (0.01 G), partially overmodulated (0.15 G) and fully overmodulated (0.65 G) projections. The study demonstrates the advantages of the adaptive method, which involves selecting different and dependent on cosine function modulation amplitudes for each projection. The study is performed on a phantom containing four tubes of LiPc and TCNQ, characterized by a different peak to peak linewidth and spin concentration.
Źródło:
Acta Physica Polonica A; 2018, 133, 3; 710-712
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structural and Functional Properties of Ion Beam Modified Elastomers
Autorzy:
Jagielski, J.
Ostaszewska, U.
Bielinski, D.
Piatkowska, A.
Romaniec, M.
Powiązania:
https://bibliotekanauki.pl/articles/1400461.pdf
Data publikacji:
2013-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
83.80.Va
81.40.Pq
81.40.Cd
81.40.Ef
Opis:
Studies on the use of energetic ion beams for material modification have been initiated originally within the Manhattan project and have been continuously developed since then. The consecutive steps were devoted to the studies of ion implantation into semiconductors, metals, ceramics and, most recently, organic materials. One of the latest areas of applications is modification of elastomers, commonly known as rubbers. In the present paper the results of the studies on structural and functional properties of irradiated elastomers will be presented with the special emphasis on the materials used in aviation and military applications. Among the structural modifications, a massive loss of hydrogen atoms appears as the most peculiar characteristic of irradiated elastomers. Functional properties of irradiated rubbers: microhardness and friction coefficient, will be presented and application potential of the materials discussed.
Źródło:
Acta Physica Polonica A; 2013, 123, 5; 888-891
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł

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