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Tytuł:
„Gazeta Polska Bukowiny” jako źródło do badań współczesnej polszczyzny pisanej na Ukrainie
The Magazine “Gazeta Polska Bukowiny” as a Source for the Study of Contemporary Written Polish in Ukraine
Autorzy:
Krawczuk, Ałła
Powiązania:
https://bibliotekanauki.pl/articles/38453581.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Instytut Slawistyki PAN
Tematy:
polszczyzna pisana na Ukrainie
„Gazeta Polska Bukowiny”
źródło materiałowe
interferencja
norma językowa
deklinacja rzeczownika
korpus elektroniczny
written Polish in Ukraine
"Gazeta Polska Bukowiny"
source material
interference
language norm
declension of a noun
electronic corpus
Opis:
This article presents the magazine Gazeta Polska Bukowiny [The Polish Gazette of Bukovina], which has been published in Ukraine since 2007, as a source for the study of contemporary written Polish under the conditions of its contact with other languages in Ukraine. The analysis is set against the background of research on the press of the Polish national minority in the country. The article offers a discussion of the advantages and prospects of the linguistic study of texts published in Gazeta Polska Bukowiny, including the use of the electronic corpus of this periodical as a research tool. The study outlines the characteristics of the magazine (time of publication, structure, topics of texts, their authors, editing) and, in the most general terms, the scope of deviations from the general Polish norm, which can be analysed on the basis of texts written by people of Polish descent. The linguistic specificity of these texts is more precisely illustrated on the example of case forms of nouns which deviate from their normative Polish equivalents. The author considers the potential impact of interference resulting from contact between Polish and Ukrainian and – directly or indirectly – Russian, which functions in Ukraine alongside the official language of the country.
Celem publikacji jest przedstawienie „Gazety Polskiej Bukowiny”, ukazującej się od 2007 roku na Ukrainie, jako źródła do badań nad współczesną polszczyzną pisaną w tym kraju w warunkach jej kontaktu z innymi językami. Na tle pokazania stanu badań nad językiem prasy polskiej mniejszości narodowej na Ukrainie omawia się zalety i perspektywy studiów językoznawczych prowadzonych na materiale tekstów „Gazety Polskiej Bukowiny”, w tym także z uwzględnieniem – jako narzędzia badawczego – utworzonego na potrzeby naukowe elektronicznego korpusu tego periodyku. Podaje się charakterystykę gazety (czas wydawania, struktura, zakres tematyczny publikacji, ich autorzy, redakcja) i najogólniej określa się zasięg odstępstw od ogólnopolskiej normy językowej, które można analizować na podstawie tekstów publikacji pisanych przez osoby polskiego pochodzenia. Dokładniej zaś specyfikę językową ilustruje się na przykładzie deklinacyjnych form rzeczownika odbiegających od normatywnych odpowiedników ogólnopolskich. Przytacza się komentarze o możliwych wpływach zewnątrzinterferencyjnych w wyniku kontaktów polszczyzny z językiem ukraińskim i – bezpośrednio lub pośrednio – rosyjskim, który aktywnie funkcjonuje na Ukrainie obok języka państwowego.
Źródło:
Acta Baltico-Slavica; 2021, 45
2392-2389
0065-1044
Pojawia się w:
Acta Baltico-Slavica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
„Pamiętnik dla dzieci” Heleny Masalskiej – świadectwo polszczyzny łotewskiej XX wieku
“Pamiętnik dla dzieci” [A Memoir for Children] by Helena Masalska: A Testimony of Twentieth-Century Latvian Polish
Autorzy:
Ostrówka, Małgorzata
Golachowska, Ewa
Lieģeniece, Liene
Powiązania:
https://bibliotekanauki.pl/articles/38587371.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Slawistyki PAN
Tematy:
język polski
Łotwa
XX wiek
pamiętnik
sytuacja socjolingwistyczna
interferencje
Polish language
Latvia
20th century
memoir
sociolinguistic situation
interference
Opis:
This article presents Pamiętnik dla dzieci [A Memoir for Children] by Helena Masalska, a text which may not be very long but is certainly important for scholars documenting the Latvian variety of twentieth-century Polish. Written in a colloquial variety of the language in 1992, the memoir tells about the childhood and the youth of the author, born in 1917. The study considers the influence of Russian and Latvian as well as a dialect of Belarusian on the author’s Polish, provides a description of its features of spelling, and reconstructs the sociolinguistic situation in which the Polish of Helena Masalska was shaped.
Artykuł jest prezentacją Pamiętnika dla dzieci Heleny Masalskiej, niezbyt długiego, ale ważnego dla badacza tekstu dokumentującego łotewską odmianę polszczyzny XX wieku. Pamiętnik… jest napisany potoczną odmianą języka polskiego. Powstał w 1992 roku, ale opowiada o dzieciństwie i młodości autorki urodzonej w 1917 roku. W artykule ukazano wpływy języka rosyjskiego i łotewskiego oraz gwary białoruskiej na polszczyznę autorki, scharakteryzowano elementy pisowni, a także zrekonstruowano sytuację socjolingwistyczną, w której kształtowała się polszczyzna Heleny Masalskiej.
Źródło:
Acta Baltico-Slavica; 2020, 44; 168-237
2392-2389
0065-1044
Pojawia się w:
Acta Baltico-Slavica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
“This England”: Re-Visiting Shakespearean Landscapes and Mediascapes in John Akomfrah’s The Nine Muses (2010)
Autorzy:
Calbi, Maurizio
Powiązania:
https://bibliotekanauki.pl/articles/647934.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
John Akomfrah
Migration
Archive
Media Interference
Rhizomatic Shakespeare
Postcolonial Shakespeare
Home and Hospitality
Englishness
Richard II
Hamlet
Opis:
The paper will offer a reading of John Akomfrah’s The Nine Muses (2010), a 90-minute experimental feature film that has been defined as “one of the most vital and original artistic responses to the subject of immigration that British cinema has ever produced” (Mitchell). It will focus on the multifarious ways in which the film makes the “canonical” literary material that it incorporates, including Shakespeare, interact with rarely seen archival material from the BBC regarding the experience of Caribbean and South Asian immigrants in 1950s and 1960s Britain. It will argue that through this interaction the familiarity of Western “canonical” literature re-presents itself as an uncanny landscape haunted by other stories, as a language that is already in itself the “language of the other” (Derrida). In particular, it will claim that Shakespearean fragments are often used in an idiosyncratic way, and they repeatedly resonate with some of the most fundamental ethical and political issues of the film, such as the question of England as “home” and migration. The paper will also argue that the decontextualization and recontextualization of these fragments makes them re-emerge as part of an interrogation of the mediality of the medium, an interrogation that also offers insights into the circulation of Shakespeare in the contemporary mediascape.
Źródło:
Multicultural Shakespeare: Translation, Appropriation and Performance; 2017, 15, 30; 59-75
2083-8530
2300-7605
Pojawia się w:
Multicultural Shakespeare: Translation, Appropriation and Performance
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A High Capacity Energy Efficient Approach for Traffic Transmission in Cellular Networks
Autorzy:
Esmaeilifard, M.
Rahbar, A. G.
Powiązania:
https://bibliotekanauki.pl/articles/958113.pdf
Data publikacji:
2015
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
cellular networks
energy efficiency
frequency assignment
interference avoidance
transmission power control
Opis:
The efficiency of cellular networks can be improved in various aspects such as energy consumption, network capacity and interference between neighboring cells. This paper proposes a high capacity energy efficient scheme (HCEE) for data transmission in cellular networks in a country area. In this paper, the authors obtain a new equation to characterize the minimal required output power for traffic transmission between a base station (BS) and a mobile user (MU) based on the MU distance from the BS. Also, the cells boundaries (the boundary of overlapping areas of neighboring cells) by two static and dynamic approaches are specified. This work helps for better frequency allocation to MUs and allows increasing network capacity. In this paper, the analytical modeling in order to formulate the HCEE algorithm and evaluate its performance is used. The performance evaluation results show the simplicity of the HCEE algorithm and its effect on energy consumption decline, network capacity enhancement and the interference reduction.
Źródło:
Journal of Telecommunications and Information Technology; 2015, 3; 5-12
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new feature extraction method for gear fault diagnosis and prognosis
Nowa metoda diagnozowania i prognozowania uszkodzeń przekładni z wykorzystaniem ekstrakcji cech
Autorzy:
Zhang, X.
Kang, J.
Bechhoefer, E.
Zhao, J.
Powiązania:
https://bibliotekanauki.pl/articles/301191.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
degradacja
diagnoza uszkodzeń
prognozowanie uszkodzeń
wskaźnik wstęgi bocznej
Narrowband Interference Cancellation
degradation
fault diagnosis
fault prognosis
sideband index
Opis:
Cechy odporne (robustfeatures) mają krytyczne znaczenie w trakcie śledzenia procesu degradacji przekładni. Stanowią one kluczowy czynnik w procesie diagnozowania i prognozowania uszkodzeń. Fakt ten stwarza w badaniach naukowych potrzebę ekstrakcji pożądanych cech. W niniejszej pracy wykorzystano nową metodę, tzw. metodę eliminacji zakłóceń wąskopasmowych (NarrowbandInterferenceCancellation), za pomocą której można wytłumić składową wąskopasmową, a wzmocnić składową impulsową, co ułatwia wykrywanie uszkodzeń przekładni. Metoda ta pozwala poprawić stosunek sygnału do szumu w szeregu impulsów związanym z częstotliwością charakteryzującą uszkodzenie przekładni. Skuteczność przedstawionej metody można wykazać za pomocą badań typu „pracuj do awarii” (run-to-failure) . Na podstawie synchronicznego sygnału wału wysokoobrotowego, z sygnałów przetwarzanych za pomocą metody eliminacji zakłóceń wąskopasmowych ekstrahuje się wskaźnik wstęgi bocznej (Sideband Index). Cecha ta ma lepszy trend degradacji niż tradycyjny wskaźnik wstęgi bocznej ekstrahowany bezpośrednio z sygnału uśrednionego synchronicznie w czasie. Porównanie cech wyodrębnionych w różnych procesach ekstrakcji dowodzi skuteczności opracowanej metody.
Robust features are very critical to track the degradation process of a gear. They are key factors for implementing fault diagnosis and prognosis. This has driven the need in research for extracting good features. This paper used a new method, Narrowband Interference Cancellation, to suppress the narrow band component and enhance the impulsive component enabling the gear fault detection easier. This method can improve the signal to noise ratio of impulse train associated with the gear fault frequency. A run-to-failure test is used to demonstrate the method’s effectiveness. Based on the time synchronous signal of high speed shaft, Sideband Index is extracted from the signals processed by Narrowband Interference Cancellation. This feature has good degradation trend than traditional Sideband Index extracted from the time synchronous average signal directly. Comparison of features based on different extraction process proves the effectiveness of developed method.
Źródło:
Eksploatacja i Niezawodność; 2014, 16, 2; 295-300
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new mechanism for data visualization with TSK-type preprocessed collaborative fuzzy rule based system
Autorzy:
Prasad, M.
Liu, Y.-T.
Li, D.-L.
Lin, C. -T.
Shah, R. R.
Kaiwartya, O. P.
Powiązania:
https://bibliotekanauki.pl/articles/91743.pdf
Data publikacji:
2017
Wydawca:
Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
Tematy:
fuzzy interference system
collaborative clustering
fuzzy logic
big data
data visualization
Opis:
A novel data knowledge representation with the combination of structure learning ability of preprocessed collaborative fuzzy clustering and fuzzy expert knowledge of TakagiSugeno-Kang type model is presented in this paper. The proposed method divides a huge dataset into two or more subsets of dataset. The subsets of dataset interact with each other through a collaborative mechanism in order to find some similar properties within eachother. The proposed method is useful in dealing with big data issues since it divides a huge dataset into subsets of dataset and finds common features among the subsets. The salient feature of the proposed method is that it uses a small subset of dataset and some common features instead of using the entire dataset and all the features. Before interactions among subsets of the dataset, the proposed method applies a mapping technique for granules of data and centroid of clusters. The proposed method uses information of only half or less/more than the half of the data patterns for the training process, and it provides an accurate and robust model, whereas the other existing methods use the entire information of the data patterns. Simulation results show the proposed method performs better than existing methods on some benchmark problems.
Źródło:
Journal of Artificial Intelligence and Soft Computing Research; 2017, 7, 1; 33-46
2083-2567
2449-6499
Pojawia się w:
Journal of Artificial Intelligence and Soft Computing Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new method to reduce electromagnetic interference using signal modeling
Autorzy:
Daneshvar, Milad
Parhizgar, Nasser
Oraizi, Homayoon
Powiązania:
https://bibliotekanauki.pl/articles/949874.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
electromagnetic radiation
frequency response
interference
multi-component
signals
parameter modeling
transmission lines
Opis:
Controlling and reducing the radiation emitted by various systems helps the board designer improve systems’ performance. One proposed way to achieve these goals is to use an algorithm to control the radiation applied to systems. According to the executive structure of the algorithm and considering the nature of the existing signals in several components, the separation of the signal components is on the agenda of the algorithm. In fact, the goal is to create an intuitive view of the multi-component signals around the systems that enter the systems from different angles and have a detrimental effect on their performance. Using signal processing methods, we will be able to break down the signal into different components and simulate each component separately. To prevent high computational repetitions and increase simulation time in signal component analysis, by reducing the components, we reduce the number of mesh cells in the software and, using linear approximation, determine the exact position of the radiation signal applied to systems and thus the best linear relationship. The signal entry path is used to apply the rules required for prediction design.
Źródło:
Archives of Electrical Engineering; 2020, 69, 4; 829-840
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A novel method for separability of signal components to estimate radiation from a high-frequency subsystem
Autorzy:
Daneshvar, Milad
Parhizgar, Naser
Oraizi, Homayoon
Powiązania:
https://bibliotekanauki.pl/articles/140523.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
electromagnetic interference
electromagnetic radiation
parameter estimation
multi-component signals
frequency response
radio frequency
Opis:
Specific requirements are designed and implemented in electronic and telecommunication systems for received signals, especially high-frequency ones, to examine and control the signal radiation. However, as a serious drawback, no special requirements are considered for the transmitted signals from a subsystem. Different industries have always been struggling with electromagnetic interferences affecting their electronic and telecommunication systems and imposing significant costs. It is thus necessary to specifically investigate this problem as every device is continuously exposed to interferences. Signal processing allows for the decomposition of a signal to its different components to simulate each component. Radiation control has its specific complexities in systems, requiring necessary measures from the very beginning of the design. This study attempted to determine the highest radiation from a subsystem by estimating the radiation fields. The study goal was to investigate the level of radiations received and transmitted from the adjacent systems, respectively, and present methods for control and eliminate the existing radiations. The proposed approach employs an algorithm which is based on multi-component signals, defect, and the radiation shield used in the subsystem. The algorithm flowchart focuses on the separation and of signal components and electromagnetic interference reduction. In this algorithm, the detection process is carried out at the bounds of each component, after which the separation process is performed in the vicinity of the different bounds. The proposed method works based on the Fourier transform of impulse functions for signal components decomposition that was employed to develop an algorithm for separation of the components of the signals input to the subsystem.
Źródło:
Archives of Electrical Engineering; 2019, 68, 3; 497-510
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A proposed preamble channel estimation scheme for flip FBMC-based indoor VLC systems
Autorzy:
El-Ganiny, Mohamed Y.
Khalaf, Ashraf A. M.
Hussein, Aziza I.
Hamed, Hesham F. A.
Powiązania:
https://bibliotekanauki.pl/articles/2063904.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
Tematy:
channel estimation
filter bank multicarrier
IEEE 802.15.7 standard
interference approximation method
visible light communication
Opis:
Filter bank multicarrier waveform is investigated as a potential waveform for visible light communication broadcasting systems. Imaginary inter-carrier and/or inter-symbol interference are causing substantial performance degradation in the filter bank multicarrier system. Direct current-biased optical filter bank multicarrier modulation overcomes all the problems of direct current-biased optical-orthogonal frequency division multiplexing modulation approaches in terms of speed and bandwidth. However, it also wastes a lot of energy while transforming a true bipolar signal into a positive unipolar signal by adding direct current-bias. In this paper, a flip-filter bank multicarrier-based visible light communication system was introduced to overcome this problem. In this system, a bipolar signal is converted to a unipolar signal by isolating the positive and negative parts, turning them to positive and then delivering the signal. Also, a new channel estimation scheme for a flip-filter bank multicarrier system is proposed which improves the channel estimation performance compared to that of each of the conventional schemes. The proposed system performance is measured in terms of bit error rate, normalized mean squared error, and constellation diagram. The superiority of the proposed scheme over other conventional structures has been successfully verified by MATLAB 2020b simulation experiments results. These results are evaluated under indoor visible light communication standard.
Źródło:
Opto-Electronics Review; 2022, 30, 1; art. no. e140859
1230-3402
Pojawia się w:
Opto-Electronics Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A reliability-operational analysis of a track-side CCTV cabinet taking into account interference
Autorzy:
Paś, Jacek
Rosiński, Adam
Białek, Kamil
Powiązania:
https://bibliotekanauki.pl/articles/2128147.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
operation
reliability
electromagnetic interference
modelling
closed circuit television
CCTV
operacja
niezawodność
interferencja elektromagnetyczna
modelowanie
telewizja przemysłowa
Opis:
The paper presents issues associated with the impact of electromagnetic interference on track-side cabinets of a closed-circuit television system (CCTV) functioning in a railway transport environment. The measurements of an electromagnetic field emitted by a track-side CCTV cabinet were presented. Designs of this kind are operated in railway facilities; therefore, they should not disturb the functioning of other equipment, the rail traffic control systems, in particular (so-called inner compatibility). An analysis of the obtained results enabled developing a research model, and a further reliability and operational analysis, taking into account electromagnetic interference. This enabled determining a relationship allowing the determination of the probability of a track-side CCTV cabinet staying in a state of full ability. The presented discussions regarding a track-side CCTV cabinet, taking into account electromagnetic interference, allow for the numerical assessment of different types of solutions (technical and organizational), which can be implemented in order to mitigate the impact of electromagnetic interference on a system’s functioning.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 2; e136747, 1--11
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Accuracy performance of e-Loran receivers under Cross-Rate Interference conditions
Autorzy:
Šafář, J.
Williams, P.
Vejražka, F.
Powiązania:
https://bibliotekanauki.pl/articles/320661.pdf
Data publikacji:
2012
Wydawca:
Polskie Forum Nawigacyjne
Tematy:
e-Loran
Cross-Rate Interference
signal processing
Opis:
According to a recent Business Case produced by the General Lighthouse Authorities of the United Kingdom and Ireland (GLAs), e-Loran is the only system that, when combined with GNSS, can achieve cost effective resilient Positioning, Navigation and Timing (PNT) by 2018 for maritime e-Navigation. The GLAs currently operate a trial e-Loran service from Harwich, UK and are working towards establishing e-Loran Initial Operational Capability (IOC) in the seven busiest UK ports and port approaches by mid-2013. A future extension of e-Loran coverage to the entire GLA service area will require the installation of additional transmitting stations. When planning the installation of e-Loran transmitters service providers will need a good understanding of the effects of the new signals on the system’s performance. Since all e-Loran stations share the same frequency band and the e-Loran signals propagate over vast distances, special attention needs to be paid to the issue of intra-system interference. This is also referred to as Cross-Rate Interference (CRI) and is inherent to the way e-Loran operates. In this paper we examine the impact of CRI on the position accuracy performance of e-Loran receivers. First, a signal processing model for a typical e-Loran receiver is developed. This could provide the e-Loran community with a unified framework for receiver performance evaluation. Numerical and, where possible, analytical results obtained from the model are then presented, describing the achievable accuracy performance under different interference conditions. The theoretical results are also compared to those obtained from measurements made on a commercially available receiver driven by a signal simulator. Our analysis shows that modern e-Loran signal processing algorithms can achieve a substantial reduction of the negative effects of CRI. However, there is still an appreciable residual effect, which should be taken into account when designing future e-Loran networks and determining their coverage and performance.
Źródło:
Annual of Navigation; 2012, No. 19, part 1; 133-148
1640-8632
Pojawia się w:
Annual of Navigation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
All-optical sensor based on nonlinear multimode interference coupler features
Autorzy:
Tajaldini, M
Jafri, M Z M
Powiązania:
https://bibliotekanauki.pl/articles/173957.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
nonlinear multimode interference (NLMMI)
nonlinear modal propagation analysis (NMPA)
all-optical sensor
cladding refractive
chemical sensing
earthquake
air pollution
water-soluble
Opis:
In this study, we investigate the sensing applications in the presence of the nonlinear effects by proposing an all-optical sensor and considering nonlinear effects on modal propagation and output intensity based on an ultra-compact nonlinear multimode interference coupler. The sensor can be tuned to have the highest sensitivity in the wavelength and refractive index ranges and can detect water-soluble chemicals, air-pollutions, earthquake wave, blood parameters, and heart operation. The results indicate high output sensitivity to input wavelength whereas the nonlinear effects appear in the medium. This sensitivity led us to propose a wave sensor of both transverse and longitudinal waves, such as acoustic and light waves, when an external wave interacts with an input waveguide. For instance, this sensor can be implemented using a long input that is inserted in the land, and any wave could then be detected from the Earth. The visible changes in intensity at the output facet in various refractive indices of the surrounding layer show the high sensitivity to the refractive index of the surrounding layer, which is the foundation of introducing a sensor. Generally, the results show the high efficiency of nonlinear effects in all-optical sensing performances.
Źródło:
Optica Applicata; 2015, 45, 3; 327-340
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An approach for butterfly conservation through setting up a garden in an urban area, Kolkata, India
Autorzy:
Thakur, Debapriya Chakraborty
Chakrabarti, Pinakiranjan
Chaudhuri, Anuradha Chaudhuri
Powiązania:
https://bibliotekanauki.pl/articles/1178712.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
butterfly garden
habitat restoration
butterfly conservation
urbanization
human interference
eco-restoration
Opis:
Biodiversity declines due to unplanned urbanization as well as anthropogenic activities. It has already been documented that native flora and fauna are disappearing as an impact of biodiversity loss. There should be urgent need to restore our lost habitats through conservation techniques. The present study was aimed to conserve and restore lost habitat of pollinators with special reference to butterflies in an urban area through setting up a garden. The study was divided into two phases. In the first phase survey of butterflies found within an unmanaged garden in the campus (Lady Brabourne College, Kolkata) was performed prior to construction activity (May 2012 to October, 2012) and it was observed previously total 31 species of butterfly visited the garden. Developmental activities caused a sharp decline in their population causing an approach to relocate our garden in another area of college campus. In the second phase, setting up a garden in an alternative sites of same campus with plantation of host plants preferred by butterfly species was done and observed for butterfly visit. A slow increase in sighting over a study period of two years (between October, 2012 to June, 2015) was recorded. The results clearly indicate that total 43 species of butterflies were recorded in the garden including 9 species, which were not seen before and with 8 species completing their life cycles. In conclusion, declining of butterfly species can be increased and conserved through setting up of a garden. Presently the garden is flourishing but problems of increase in natural enemies as birds and other anthropogenic disturbances such as excess noise and vibration, street lighting, human interference etc. should be addressed in future within present conservation approach.
Źródło:
World Scientific News; 2017, 61, 2; 69-85
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An attempt to set limits on human interference in the environment
Rozpoznawanie granic ingerencji człowieka w środowisko przyrodnicze
Autorzy:
Latawiec, Michał
Powiązania:
https://bibliotekanauki.pl/articles/1062831.pdf
Data publikacji:
2020-12-31
Wydawca:
Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie
Tematy:
środowisko
ingerencja człowieka
granica
environment
human interference
boundaries
Opis:
In this article, the author discusses the problem of crossing the boundaries of human intervention in the environment that affect both nature and man. Setting limits on human interference in nature (and in man themselves) is dependent on the type of boundaries. For this reason, the author presents the issues of the role and development of human interference in nature, an attempt to justify the current intervention as well as the associated dilemmas. For the purpose of this analysis, the author formulates a definition of borderline interference in nature. Finally, the author gives examples of exceeding the permissible limits.
W niniejszym artykule autor omawia problem takiego przekraczania granic ingerencji człowieka w środowisko naturalne, które oddziałuje zarówno na naturę, jak i człowieka. Ustalenie granic ingerencji człowieka w naturę (i w siebie samego) jest zależne od rodzaju tych granic. Z tego względu autor prezentuje kwestie roli i wzrostu ingerencji człowieka w naturę, próbę usprawiedliwienia współczesnych ingerencji i związane z tym dylematy. Dla potrzeb tej analizy zostaje zdefiniowana linia graniczna ingerencji w naturę. W części końcowej wskazane są przykłady rozszerzania dopuszczalnych ograniczeń.
Źródło:
Studia Ecologiae et Bioethicae; 2020, 18, 5; 87-96
1733-1218
Pojawia się w:
Studia Ecologiae et Bioethicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Experimental-Numerical Analysis of Plastic Zones Initiation Around Holes in Shields Made of Steel C45 Under Tension
Eksperymentalno-numeryczna analiza inicjacji stref plastycznych przy otworach w tarczach ze stali C45
Autorzy:
Bucko, S.
Jodłowski, H.
Trzebicki, M.
Powiązania:
https://bibliotekanauki.pl/articles/139924.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
stress gradient
platform of plasticity plastic zone
optical interference
Opis:
The paper presents the results of research on the plastic zones formation in thin (3.51 [mm]) shields made of steel C45 with holes of 4, 10 and 20 diameters. The authorship method of identifying plastic macro-strains utilizing optical interference phenomenon was used in the experiments. The basic idea of the method is summarized below as being: “The occurrence of plastic deformations in the active process of loading is testified by a loss of the interference fringes that were previously present or by a clear and rapid change in their character”. In the experiments, the values of the stress initiating the first plastic deformation were determined. In order to explain the processes of plastic deformation appearance a detailed stress state analysis in the holes surrounding area was realized with the use of Finite Element Method. Comparison of experimental results with the results of FEM calculations indicates that there are significant quantitative as well as qualitative differences. Namely stresses initiating plastic deformations clearly exceed the value of ReH, and plastic deformation are of local plastic slides character. Similar results were previously obtained in studies on the shields made of steel 15CrMo with holes.
W pracy zaprezentowano wyniki badan nad formowaniem stref plastycznych w cienkich tarczach wykonanych ze stali C45 z otworami o srednicach 4,10 i 20 milimetrów. W eksperymentach wykorzystano autorską metodę identyfikacji makro-odkształceń plastycznych za pomocą zjawiska interferencji optycznej. Główną zasadę wykorzystania tej metody mozna ując w zdaniu: „O występowaniu odkształceń plastycznych w czynnym procesie obciażania swiadczy zanik pierwotnie widocznych prążków interferencyjnych bądź gwałtowna zmiana ich charakteru”. Wyznaczono doświadczalnie wartości naprężeń inicjujacych odkształcenia plastyczne. W celu wyjaśnienia zjawisk towarzyszacych inicjacji procesów towarzyszących początkowej fazie odkształceń plastycznych została przeprowadzona szczegółowa analiza stanu naprezenia w strefie otworów. Porównanie wyników analizy eksperymentalnej z wynikami uzyskanymi za pomoca Metody Elementów Skończonych wykazało istotne róznice ilosciowe i jakosciowe. Mianowicie, napreżenia inicjujące odkształcenia plastyczne istotnie przekraczaja wartosc górnej granicy plastyczności ReH oraz odkształcenia plastyczne posiadają charakter towarzyszący lokalnym poślizgom plastycznym. Podobne wyniki były prezentowane uprzednio w badaniach tarcz z otworami wykonanych ze stali 15CrMo.
Źródło:
Archive of Mechanical Engineering; 2014, LXI, 1; 179-198
0004-0738
Pojawia się w:
Archive of Mechanical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł

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