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    Wyświetlanie 1-12 z 12
    Tytuł:
    A GIS-Based Analysis of Temporal Changes of Land Use Pattern in Batticaloa MC, Sri Lanka from 1980 to 2018
    Autorzy:
    Mathanraj, S.
    Ratnayake, R. M. K.
    Rajendram, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1046562.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Barren land
    Land use changes
    Planning
    Temporal pattern
    Opis:
    Batticaloa MC, one of the fastest-growing cities in Sri Lanka, is the most vital agglomeration that should concentrate upon temporal changes in land use. Various land use categories, namely commercial, residential, agricultural, scrubland, mangroves, water and barren land in Batticaloa, have been modified by the different purposes of utilization. This study aims to identify the land-use changes of Batticaloa Municipal Council from 1980 to 2018. Primary and secondary data collection methods were used to gather the data for analysis. Comparison was made to the various land use categories in 1980, 1990, 2000, 2010 and 2018. The temporal pattern of land-use change was presented via a comparison of the five-time periods of land use. ArcGIS 10.4.1 and MS Excel 2013 were applied to analyse the maps and data. The finding of the study was that between 1980 and 2018, there were significant land-use changes in the study area. Commercial and residential areas increased by 20.17 ha and 1148.57 ha, respectively, and barren land and agricultural land lost 769.54 ha and 301.99 ha, respectively. In addition, rest land use categories were converted into other land use categories during these periods. The effects of human activities are immediate and often radical, while the natural effects are relatively long. The recommendations are to enforce future land use planning, and protect forest resources through land-use strategies by way of the government with community participation encouraging the approval of urban planners to make decisions about urban development.
    Źródło:
    World Scientific News; 2019, 137; 210-228
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Темпоральний патерн антонімічної атракції в українській публіцистиці початку ХХІ ст.
    The Temporal Pattern of Antonymic Attraction in Ukrainian Journalism at the Beginning of the 21st Century
    Autorzy:
    Połtaweć, Julija
    Powiązania:
    https://bibliotekanauki.pl/articles/1790536.pdf
    Data publikacji:
    2016-02-02
    Wydawca:
    Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
    Tematy:
    Ukrainian journalism
    antonymic attraction
    syntagmatic аnd paradigmatic attraction
    language рattern
    temporal pattern
    Opis:
    The article is devoted to the temporal pattern of antonymic attraction in Ukrainian journalism at the beginning of the 21st century. It was found that synonymic, paronymic and antonymic attractions are kinds of lexical attraction. The mechanism of antonymic attraction is based on the fact that there is attraction among linguistic units, based on their semantic similarity. The temporal pattern is considered. It appears in the transformation from linear and cyclical time. Paradigmatic and syntagmatic types of the functioning of antonymic attraction were analyzed. Special attention was paid to the semantics and functions of antonymic attractants in Ukrainian newspapers. In the conclusion, the function of the temporal pattern of antonymic attraction in journalistic style is discussed. It is an important indication of the Ukrainian journalistic style.
    Źródło:
    Studia Ucrainica Varsoviensia; 2016, 4; 241-248
    2299-7237
    Pojawia się w:
    Studia Ucrainica Varsoviensia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Post-fire succession on abandoned fields in coniferous forest habitat [Nord-East Poland]
    Autorzy:
    Kwiatkowska-Falinska, A J
    Powiązania:
    https://bibliotekanauki.pl/articles/57402.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    post-fire succession
    abandoned field
    coniferous forest
    forest habitat
    secondary succession
    spatial pattern
    temporal pattern
    species turnover
    fire
    Polska
    Opis:
    In July, 1992, fire swept through the Jelonka Reserve (52o35'33"N; 23o22'10"E). Litter, herbs layer and juniper shrubs were razed and the tree trunks of Pinus sylvestris and Populus tremula damaged, which resulted in their death the following year. Five research plots of 25 m2 each were established in the post-fire area. The species present there and their degrees of coverage were listed on the Londo scale between 1993 and 2002. The calculation of average degrees of coverage for individual populations allowed for the establishing of a chronological pattern of post-fire succession. The following findings have been made: 1) the primary function in colonization belongs to species of guerilla strategy of growth whose dormant buds survived fire underground (Holcus mollis, Calluna vulgaris and Populus tremula) or phalanx strategy of growth (Corynephoms canescens); 2) the dominants of the initial succession stage are perennial grasses, not therophytes; 3) the spatial pattern of succession is influenced by the occurrence of H. mollis or C. canescens in a particular location; 4) the initial stage terminates with the occurrence and further growth of C. vulgaris clumps; the post-fire succession in the Jelonka Reserve attained a brushwood stage faster in comparison to secondary succession, formerly triggered by the cessation of cultivation on arable land.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2008, 77, 3; 245-254
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Temporal alarm pattern discovery in mobile telecommunication networks based on binary series analysis
    Autorzy:
    Mazdziarz, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/205702.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Instytut Badań Systemowych PAN
    Tematy:
    mobile telecommunication network
    fault diagnosis
    root cause analysis
    Dice similarity coefficients
    Hamming distance
    temporal pattern mining
    Opis:
    Highly-advanced systems, such as mobile telecommunication networks, characterized by increased complexity, make maintenance routines difficult. Amount of data to be analyzed in a short time during fault diagnosis of the mobile telecommunication networks strongly justifies the need to automate alarm correlation and root cause analysis. A major challenge in the establishment of alarm correlation is to determine how to reflect the alarm flow inertia. Thus, adequate temporal alarm pattern discovery methods should be used in fault diagnosis for correlation-related purposes. Automatic temporal alarm pattern discovery allows fast generation of root cause analysis hypotheses and supports effective troubleshooting of network problems. The process for fault propagation throughout the network is manifested by the time lag between the root-cause alarm and potentially linked symptoms, as well as weakening correlation strength with time. The paper presents a novel method for alarm correlation analysis in mobile telecommunication networks, based on binary series analysis. The method allows for discovery of causal relationship between alarms with dynamic alarm correlation window size estimation.
    Źródło:
    Control and Cybernetics; 2018, 47, 2; 191-213
    0324-8569
    Pojawia się w:
    Control and Cybernetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Spatio-temporal patterns of PAHs, PCBs and HCB in sediments of the Western Barents Sea
    Autorzy:
    Zaborska, A.
    Carroll, J.
    Pazdro, K.
    Pempkowiak, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/47438.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    Arctic
    Barents Sea
    hexachlorobenzene
    marine sediment
    organic contaminant
    persistent organic pollutant
    polychlorinated biphenyl
    polycyclic aromatic hydrocarbon
    sediment
    sediment accumulation
    spatio-temporal pattern
    Opis:
    We examine the composition and levels of organic contaminants (PAHs, PCB, HCB) in four sediment cores collected from the Barents Sea. We assess the influence of temporal variations in contaminant supplies and post-depositional reworking on contaminant distribution. Anthropogenic levels of P12PAH reached 95 ng g−1, higher inventories dominated by BKF were observed at southern stations, while northern stations exhibited lower inventories with PHE as the dominant compound. The PCB composition was similar at all stations dominated by CB101, 138 and 153. P7PCB concentrations were higher at northern stations. The observed composition and spatio-temporal pattern of organic contaminants is in accordance with long-range transport supplies.
    Źródło:
    Oceanologia; 2011, 53, 4
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wzorce czasowe kolizji łosi z pociągami na terenie Kolumbii Brytyjskiej i ich wpływ na metody zapobiegające takim zdarzeniom
    Temporal patterns of moose-train collisions in British Columbia – implications for mitigation
    Autorzy:
    Jasińska, K.D.
    Bijak, S.
    Child, K.N.
    Rea, R.V.
    Powiązania:
    https://bibliotekanauki.pl/articles/974063.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    Alces alces
    Kolumbia Brytyjska
    Kanada
    łowiectwo
    zwierzęta łowne
    łoś
    kolizje z pociągami
    zmienność czasowa
    alces alces
    temporal pattern
    season
    month
    weekdays
    wildlife−train collisions
    Opis:
    Where train tracks bisect moose habitat, trains may collide with moose, impacting the local population and creating a safety concern for rail traffic. Understanding the patterns underlying these collisions, is critical for helping managers choose the right mitigation methods to reduce mortality on railways. Our objective was to analyze the long−term temporal patterns of moose−train collisions. We used data on moose−train collisions from British Columbia (Canada) obtained from Canadian National Railways and British Columbia Rail Corporation. We analysed data from collision events that occurred between 1990 and 2010, excluding 1995−1996 for which there were no data. A total number of days, when moose−train collisions occurred (LD), and a total number of moose killed from collisions (LK) were calculated in annual, seasonal and monthly resolutions. We also investigated distribution of these data for day of the week. We used chi2 and Mann−Kendall tests to investigate whether LD or LK changed over time and Pearson correlation coefficient to relate these trends to the annual moose harvest in the analysed period. The number of days in which moose−train collisions occurred varied by year and by time of year. LD occurred most often in winter and least often in summer, with the highest number being recorded in February and the lowest in July. There were no significant differences in the number of moose−train collisions on various days of the week. We found no significant trends in LD for seasons, months (except for November) and weekdays for the period under investigation. In general, LK revealed a temporal pattern as LD, however number of killed moose was significantly lower on Fridays and Saturdays comparing to other week days. Because moose−train collision patterns did not change significantly between years, we assume that the temporal patterns exhibited in our study likely hold true from year to year and can be used to inform managers considering mitigation measures aimed at reducing moose−train collisions.
    Źródło:
    Sylwan; 2020, 164, 01; 32-40
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Time Domain Model of GPR Antenna Radiation Pattern
    Autorzy:
    Edemsky, F.
    Popov, A.
    Zapunidi, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/226318.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    subsurface sensing
    ground penetrating radar
    electromagnetic pulse radiation
    ground-air interface
    time-domain Green function
    spatio-temporal radiation pattern
    inverse problem
    deconvolution
    Źródło:
    International Journal of Electronics and Telecommunications; 2011, 57, 3; 407-411
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    One shot profilometry using iterative two-step temporal phase-unwrapping
    Autorzy:
    Du, G.
    Wang, M.
    Zhou, C.
    Si, S.
    Li, H.
    Lei, Z.
    Li, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/173912.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    phase unwrapping
    composite fringe pattern
    Fourier transform
    two-step temporal phase-unwrapping
    Opis:
    This paper reviews two techniques that have been recently published for three-dimensional profilometry and proposes one shot profilometry using iterative two-step temporal phase-unwrapping by combining the composite fringe projection and the iterative two-step temporal phase unwrapping algorithm. In temporal phase unwrapping, many images with different frequency fringe pattern are needed to project, which would take much time. In order to solve this problem, Ochoa proposed a phase unwrapping algorithm based on phase partitions using a composite fringe. However, we found that the fringe order determined through the construction of phase partitions tended to be imprecise. Recently, we proposed an iterative two-step temporal phase unwrapping algorithm, which can achieve high sensitivity and high precision shape measurement. But it needs multiple frames of fringe images which would take much time. In order to take into account both the speed and accuracy of three-dimensional shape measurement, we get a new, and more accurate unwrapping method based on a composite fringe pattern by combining these two techniques. This method not only retains the speed advantage of Ochoa’s algorithm, but also greatly improves its measurement accuracy. Finally, the experimental evaluation is conducted to prove the validity of the proposed method.
    Źródło:
    Optica Applicata; 2017, 47, 1; 97-110
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessing the temporal stability of spatial patterns of soil apparent electrical conductivity using geophysical methods
    Autorzy:
    De Caires, S.A.
    Wuddivira, M.N.
    Bekele, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/26396.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    temporal stability
    spatial pattern
    soil
    plantation
    cocoa
    Theobroma cacao
    soil property
    electrical conductivity
    electromagnetic induction
    geophysical method
    Opis:
    Cocoa remains in the same field for decades, resulting in plantations dominated with aging trees growing on variable and depleted soils. We determined the spatio-temporal variability of key soil properties in a (5.81 ha) field from the International Cocoa Genebank, Trinidad using geophysical methods. Multi-year (2008-2009) measurements of apparent electrical conductivity at 0-0.75 m (shallow) and 0.75-1.5 m (deep) were conducted. Apparent electrical conductivity at deep and shallow gave the strongest linear correlation with clay-silt content (R = 0.67 and R = 0.78, respectively) and soil solution electrical conductivity (R = 0.76 and R = 0.60, respectively). Spearman rank correlation coefficients ranged between 0.89-0.97 and 0.81-0.95 for apparent electrical conductivity at deep and shallow, respectively, signifying a strong linear dependence between measurement days. Thus, in the humid tropics, cocoa fields with thick organic litter layer and relatively dense understory cover, experience minimal fluctuations in transient properties of soil water and temperature at the topsoil resulting in similarly stable apparent electrical conductivity at shallow and deep. Therefore, apparent electrical conductivity at shallow, which covers the depth where cocoa feeder roots concentrate, can be used as a fertility indicator and to develop soil zones for efficient application of inputs and management of cocoa fields.
    Źródło:
    International Agrophysics; 2014, 28, 4
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modeling of distributed objects computing pattern combinations using a formal specification language
    Autorzy:
    Taibi, T.
    Ngo, D. C. L.
    Powiązania:
    https://bibliotekanauki.pl/articles/908185.pdf
    Data publikacji:
    2003
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    informatyka
    Balanced Pattern Specification Language (BPSL)
    First-Order Logic (FOL)
    Temporal Logic of Actions (TLA)
    substitution
    addition
    elimination
    Opis:
    Design patterns help us to respond to the challenges faced while developing Distributed Object Computing (DOC) applications by shifting developers' focus to high-level design concerns, rather than platform specific details. However, due to the inherent ambiguity of the existing textual and graphical descriptions of the design patterns, users are faced with difficulties in understanding when and how to use them. Since design patterns are seldom used in isolation but are usually combined to solve complex problems, the above-mentioned difficulties have even worsened. The formal specification of design patterns and their combination is not meant to replace the existing means of describing patterns, but to complement them in order to achieve accuracy and to allow rigorous reasoning about them. The main problem of the existing formal specification languages for design patterns is the lack of completeness. This is mainly because they tend to focus on specifying either the structural or behavioral aspects of design patterns but not both of them. Moreover, none of them even ventured in specifying DOC patterns and pattern combinations. We propose a simple yet Balanced Pattern Specification Language (BPSL) aimed to achieve equilibrium by specifying both the aspects of design patterns. The language combines two subsets of logic: one from the First-Order Logic (FOL) and the other from the Temporal Logic of Actions (TLA).
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2003, 13, 2; 239-253
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Spatial patterns of the wave climate in the Baltic Proper and the Gulf of Finland
    Autorzy:
    Soomere, T.
    Raamet, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/47721.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    Baltic Sea
    Finland Gulf
    instrumental measurement
    long-term change
    sea wave modelling
    spatial pattern
    temporal variation
    visual observation
    wave climate
    wave measurement
    wind speed
    wind wave
    Opis:
    We make an attempt to consolidate results from a number of recent studies into spatial patterns of temporal variations in Baltic Sea wave properties. The analysis is based on historically measured and visually observed wave data, which are compared with the results of numerical hindcasts using both simple fetch-based one-point models and contemporary spectral wave models forced with different wind data sets. The focus is on the eastern regions of the Baltic Sea and the Gulf of Finland for which long-term wave data sets are available. We demonstrate that a large part of the mismatches between long-term changes to wave properties at selected sites can be explained by the rich spatial patterns in changes to the Baltic Sea wave fields that are not resolved by the existing wave observation network. The spatial scales of such patterns in the open sea vary from >500 km for short-term interannual variations down to about 100 km for long-term changes.
    Źródło:
    Oceanologia; 2011, 53, (1-TI)
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A system for deduction-based formal verification of workflow-oriented software models
    Autorzy:
    Klimek, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/330429.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    formal verification
    deductive reasoning
    temporal logic
    semantic tableaux
    workflow pattern
    logical primitive
    generating logical specification
    business model
    BPMN
    formalna weryfikacja
    wnioskowanie dedukcyjne
    logika temporalna
    tablica semantyczna
    wzorzec przepływu pracy
    generowanie specyfikacji logicznej
    model biznesowy
    Opis:
    The work concerns formal verification of workflow-oriented software models using the deductive approach. The formal correctness of a model’s behaviour is considered. Manually building logical specifications, which are regarded as a set of temporal logic formulas, seems to be a significant obstacle for an inexperienced user when applying the deductive approach. A system, along with its architecture, for deduction-based verification of workflow-oriented models is proposed. The process inference is based on the semantic tableaux method, which has some advantages when compared with traditional deduction strategies. The algorithm for automatic generation of logical specifications is proposed. The generation procedure is based on predefined workflow patterns for BPMN, which is a standard and dominant notation for the modeling of business processes. The main idea behind the approach is to consider patterns, defined in terms of temporal logic, as a kind of (logical) primitives which enable the transformation of models to temporal logic formulas constituting a logical specification. Automation of the generation process is crucial for bridging the gap between the intuitiveness of deductive reasoning and the difficulty of its practical application when logical specifications are built manually. This approach has gone some way towards supporting, hopefully enhancing, our understanding of deduction-based formal verification of workflow-oriented models.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2014, 24, 4; 941-956
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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