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Wyświetlanie 1-10 z 48
Tytuł:
Extractive substances of selected species of exotic wood
Autorzy:
Waliszewska, B.
Wiaderek, I.
Pradzynski, W.
Powiązania:
https://bibliotekanauki.pl/articles/29831.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
wood
exotic wood
exotic tree
physicochemical property
Instsia
Millettia laurentii
Pterocarpus soyauxii
Afzelia africana
soluble substance
Źródło:
Folia Forestalia Polonica. Series B - Drzewnictwo; 2010, 41
0071-6685
Pojawia się w:
Folia Forestalia Polonica. Series B - Drzewnictwo
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigating cotton dyeing using exotic wood waste sawdust
Badanie możliwości wykorzystania odpadowej frakcji drewna egzotycznego do barwienia tkanin bawełnianych.
Autorzy:
Brański, Robert
Radomski, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/2200112.pdf
Data publikacji:
2022
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
exotic wood
mordant
cotton
dyeing
color fastness
Opis:
Investigating cotton dyeing using exotic wood sawdust. The study investigated the possibility of using extracts from various species of exotic wood, obtained from waste sawdust, for dyeing cotton fabrics. Material from Obeche, Iroko, Merbau, Apple tree, American walnut, Tulip tree, Cumaru and Rosewood were used for the tests. Solutions of oxalic acid, tin chloride, aluminum sulfate and ferric chloride were used as mordants, along with no-mordant tests. The color was determined in the CIE L*a*b* coordinate system. Color fastness was tested using n-hexane for dry cleaning and acidic, alkaline and hydrogen peroxide bleach solutions. The results showed a strong dependence on the type of wood, the mortar used and the washing agent and covered a wide spectrum of color intensity and fastness. The best results were obtained for Rosewood, Merbau and Apple trees, while Tulip tree and American walnut turned out to be practically useless. Among the mordants used, the most intense colors were produced by metal salts, including ferric chloride, which strongly darkened fabrics. Dry cleaning proved to be the mildest of those tested, with the least effect on color fading.
W pracy zbadano możliwość zastosowania ekstraktów z drewna egzotycznego różnych gatunków, pozyskanych z odpadowych trocin, do barwienia tkanin bawełnianych. Do badań użyto materiału z Obeche, Iroko, Merbau, jabłoni, orzecha amerykańskiego, tulipanowca, Cumaru i palisandru. Jako zaprawy użyto roztworów kwasu szczawiowego, chlorku cyny(II), siarczanu glinu i chlorku żelaza(III), równolegle przeprowadzono próby bez zaprawy. Barwa oznaczana była w systemie współrzędnych CIE L*a*b*. Trwałość barwy badano stosując n-heksan do prania chemicznego oraz roztwory kwaśny, alkaliczny i nadtlenku wodoru jako wybielacza. Wyniki wskazały silną zależność od gatunku drewna, zastosowanej zaprawy oraz czynnika piorącego i objęły szerokie spektrum intensywności i odporności barw. Najlepsze wyniki uzyskano dla drewna palisandru, Merbau i jabłoni, natomiast tulipanowiec i orzech amerykański okazały się praktycznie nieprzydatne. Spośród zapraw najintensywniejsze barwy dawały sole metali, w tym chlorek żelaza dawał silne ściemnienie tkanin. Pranie chemiczne okazało się najłagodniejsze ze zbadanych, najmniej wpływając na blaknięcie koloru.
Źródło:
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology; 2022, 120; 5--13
1898-5912
Pojawia się w:
Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Perception of farmers on exotic chicken breeds and its management condition in North western zone Tigray, Ethiopia
Autorzy:
Teklemariam, Abadi
Powiązania:
https://bibliotekanauki.pl/articles/1178284.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
chicken management
constraints
exotic chicken breed
perception
Opis:
The study was conducted in two Woredas of North western zone of Tigray, Ethiopia. The survey was conducted by interviewing 264 randomly selected respondents to assess the chicken production system and perception of farmers regarding the benefits and constraints of using exotic chicken breeds. Of total, 95.1% of respondents practiced free ranging type chicken production system with little feed supplementation. About 95.4% of the respondents were using traditional treatment for their chicken as prevention as well as for treating their poultry from different diseases. Farmers’ in the study area were perceiving that producing of exotic poultry have the benefits such as higher egg production capacity, fast growing ability of chicken and higher selling price of exotic poultry eggs as compared to the local ones. On the other hand, cost of the exotic chicken breed, needs more care, higher feed requirement, susceptibility to diseases and predators are among the major constraints in producing exotic poultry breeds as compared to local poultry. The government and non-governmental organizations that involved in improving poultry production in the rural areas should address the major constraints of poultry production that hinder the adoption of exotic poultry in the study area. Therefore, technical and institutional interventions are very crucial to reduce the existing constraints and improve the existing traditional chicken production system in the study area.
Źródło:
World Scientific News; 2017, 86, 3; 168-179
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kakaowce nad Wisłą? Przyczynek do analizy percepcji roślin egzotycznych w Polsce
Autorzy:
Popławski, Błażej,
Powiązania:
https://bibliotekanauki.pl/articles/897435.pdf
Data publikacji:
2018-08-01
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
cocoa
cocoa tree
chocolate
exotic plants
exotica
plant studies
Opis:
The aim of the article is to characterize the perception of exotic plants in Poland – the process of their demostication in the cultural and social senses. As an example for the analysis, cocoa was selected. In the introduction, the mechanisms of constructing the concept of exotica were described. Then, the changes in the cultural significance of cocoa from pre-colonial times to the present were discussed. In the following part, the perception of cocoa cultivation in Poland was outlined.
Źródło:
Przegląd Humanistyczny; 2018, 62(1 (460)); 121-130
0033-2194
Pojawia się w:
Przegląd Humanistyczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distribution and Management of the Invasive Exotic Species Ambrosia Trifida and Sicyos Angulatus in the Seoul Metropolitan Area
Autorzy:
Kim, K. D.
Powiązania:
https://bibliotekanauki.pl/articles/124560.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
Ambrosia trifida
exotic
invasive
management
Sicyos angulatus
spreading
urban ecosystem
Opis:
We investigated the status of invasive exotic plants disturbing the ecosystem of the Seoul metropolitan area and examined the management of such plants. We selected our study sites based on those used in previous studies and on information in databases. All flora were classified into 57 families and 211 species; we evaluated 253 plant communities. The representative, invasive exotic species were Sicyos angulatus, Lactuca scariola, Ambrosia trifida, Ambrosia artemisiifolia, and Eupatorium rugosum. Stands of A. trifida ranged in area from 214 to 16,882 m2 and were present in riparian zones, road and forest edges, slopes, and other open habitats at all sites, covering an average of 37.87% of all study areas. In Gwangju, Ansan, and Anyang cities and in Yeoncheon-gun, A. trifida coverage was >50%; the total mean coverage was near-continuous along the Han and the South Han rivers, broken only by cliffs in some riparian zones, and anthropogenic constructions. A. trifida and S. angulatus require careful management because of extensive growth, shading, and twining. The biodiversity of native species may be conserved by physical eradication of these plants. We describe the extents and distribution patterns of these two representative invasive exotic species in the enormous urban ecosystem of Seoul.
Źródło:
Journal of Ecological Engineering; 2017, 18, 5; 27-36
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Remote Islands as Fictional and Metaphorical Places in Cervantes, Fletcher and Shakespeare
Autorzy:
González, José Manuel
Powiązania:
https://bibliotekanauki.pl/articles/648054.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
islands
sea
travels
Cervantes
Shakespeare
Fletcher
barbarism
gender
culture
metaphorical
exotic
Opis:
Islands have always occupied a significant place in literature and have been a source of inspiration for the literary imagination. Fictional islands have existed as either lost paradises, or places where law breaks down under physical hardships and a sense of entrapment and oppression. Islands can be sites of exotic fascination, of cultural exchange and of great social and political upheaval. However, they are more than mere locations since to be in a place implies being bound to that place and appropriating it. That means that the islands narrow boundaries, surrounded by the sea and cut off from mainland, can create bridges between the real and the imaginary as a response to cultural and social anxieties, frequently taking the form of eutopias/dystopias, Edens, Arcadias, Baratarias, metatexts, or cultural crossroads, deeply transforming that particular geographical location. This article is concerned with insularity as a way of interrogating cultural and political practices in the early modern period by looking at the works of Cervantes, Fletcher and Shakespeare where insular relations are characterized by tensions of different sort. The arrival of Prospero and Miranda, Periandro and Auristela (The Trials of Persiles and Segismunda), and Albert and Aminta (The Sea Voyage) to their respective islands take us to a different world, revealing different political and cultural interests and generating multiple perspectives on the shifting relationship between culture, society and power.
Źródło:
Multicultural Shakespeare: Translation, Appropriation and Performance; 2017, 15, 30; 133-145
2083-8530
2300-7605
Pojawia się w:
Multicultural Shakespeare: Translation, Appropriation and Performance
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the Audibility of Electric Guitar Tonewood
Autorzy:
Jasiński, Jan
Oleś, Stanisław
Tokarczyk, Daniel
Pluta, Marek
Powiązania:
https://bibliotekanauki.pl/articles/2097700.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
electric guitar
tonewoods
spectral analysis
instrument timbre
exotic woods
guitar tone
Opis:
Electric guitar manufacturers have used tropical woods in guitar production for decades claiming it as beneficiary to the quality of the instruments. These claims have often been questioned by guitarists but now, with many voices raising concerns regarding the ecological sustainability of such practices, the topic becomes even more important. Efforts to find alternatives must begin with a greater understanding of how tonewood affects the timbre of an electric guitar. The presented study examined how the sound of a simplified electric guitar changes with the use of various wood species. Multiple sounds were recorded using a specially designed test setup and their analysis showed differences in both spectral envelope and the generated signal level. The differences between the acoustic characteristics of tones produced by the tonewood samples explored in the study were larger than the just noticeable differences reported for the respective characteristics in the literature. To verify these findings an informal listening test was conducted which showed that sounds produced with different tonewoods were distinguishable to the average listener.
Źródło:
Archives of Acoustics; 2021, 46, 4; 571-578
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Silesian Ridge in the light of petrological analyses and LA-ICP MS U-Pb analyses of the cohesive debrites from the Istebna Formation (Silesian Nappe, Outer Western Carpathians, Poland)
Autorzy:
Szczuka, Monika
Gawęda, Aleksandra
Waśkowska, Anna
Golonka, Jan
Szopa, Krzysztof
Chew, David
Drakou, Foteini
Powiązania:
https://bibliotekanauki.pl/articles/2187194.pdf
Data publikacji:
2022
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Outer Carpathians
Silesian Ridge
exotic clasts
U-Pb dating
zircon
rutile
Opis:
Exotic clasts present in flysch deposits of the Western Outer Carpathians enable investigation and reconstruction of the eroded crystalline basement of the Silesian Ridge. The flysch rocks of the Istebna Formation (Jasnowice Member: Paleocene) in the Silesian Nappe contain magmatic and metamorphic clasts derived from the Silesian Ridge basement. The crystalline rock fragments acquired from cohesive debrites were analyzed petrographically and geochemically, and zircon and rutile crystals were subject to LA-ICP-MS U-Pb dating. Granitoid clasts yielded Meso-Variscan U-Pb zircon ages (325.7 and 330.6 Ma), with older (Neoproterozoic to Paleoproterozoic) inherited cores and eNd330 = –12.0 (TDM age of 1.98 Ga). The orthogneiss clast yielded a protolith age of 1635 Ma and fingerprint of thermal reworking at ~288 Ma. Zircon crystals from the detrital clasts yielded similar U-Pb zircon ages to the granitoid clasts (311.5 to 391 and 331 Ma). The rutile crystals from sandstone yielded concordia age of 344.7 Ma. Zircon crystals from paragneiss, interpreted as a granitoid envelope, yielded 238U/206Pb ages between 557 and 686 Ma and include an inherited core of age ~1207.4 ±33.8 Ma. Age data from exotic clasts and the detrital zircon and rutile fraction suggest the core part of the Silesian Ridge was a Neoproterozoic to Mesoproterozoic envelope intruded by Meso-Variscan granitoid plutons.
Źródło:
Geological Quarterly; 2022, 66, 2; art. no. 20
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Deformation structures in the gneissic exotic pebbles from the area of Wołosate (Cisna sandstone, Dukla tectonic unit, Outer Carpathians, Poland)
Autorzy:
Kania, M.
Wolska, A.
Powiązania:
https://bibliotekanauki.pl/articles/191901.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
gneissic exotic pebbles
foliation
metamorphism
mica fish
Bieszczady Mts.
Outer Carpathians
Polska
Opis:
Gneissic exotic pebbles from the Cisna beds (Dukla tectonic unit) in the region of Wołosate (Bieszczady Mts., Eastern Carpathians) were investigated. These exotic pebbles are from 9.5 to 13 cm in size. Basing on the structural features, the following groups of exotic pebbles were distinguished: granitic gneisses, laminated gneisses, flaser gneisses and mylonitic gneisses. Granite - granodiorite protolith was deformed in the shear zone; strain partitioning was probably an important process during deformation. The observed structures allow to determine the temperature of metamorphism as 500-550°C. The lower limit of pressure was determined basing on phengite geobarometer as 5 kbar. The nature and localization of the source area can be similar to the Bretila sequence from the Romanian Eastern Carpathians.
Źródło:
Annales Societatis Geologorum Poloniae; 2009, 79, No 1; 41-52
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 48

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