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Wyszukujesz frazę "Łuczak, Marcin." wg kryterium: Autor


Wyświetlanie 1-7 z 7
Tytuł:
Struktura biologiczna i dynamika drzewostanów uroczyska Paprotnia w Parku Krajobrazowym Wzniesień Łódzkich
Biological structure and dynamics of the tree-stands in the Paprotnia range in the Wzniesienia Łódzkie Landscape Park
Autorzy:
Łuczak, Marcin
Łuczak, Anna
Powiązania:
https://bibliotekanauki.pl/articles/944556.pdf
Data publikacji:
2000
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Opis:
The structure of plant layers as well as diameters of trees in forest communities of the Paprotnia Range are presented in the paper. On the base of these results are characterized: the story of development, the present biological structure, the dynamic tendencies and the prognosis of future development of forest phytocoenoses. Described researches were carried out in the years 1993-1994 and are the continuation of researches on vegetation of the Paprotnia Range (A. Łuczak, M. Łuczak 2000).
Źródło:
Acta Universitatis Lodziensis. Folia Botanica; 2000, 14
0208-6174
Pojawia się w:
Acta Universitatis Lodziensis. Folia Botanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Szata roślinna uroczyska Paprotnia w Parku Krajobrazowym Wzniesień Łódzkich
Vegetation of the Paprotnia range in the Wzniesienia Łódzkie Landscape Park
Autorzy:
Łuczak, Anna
Łuczak, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/944557.pdf
Data publikacji:
2000
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Opis:
In the paper there are presented results of researches on flora and plant communities of the Paprotnia Range. These researches were carried out in the years 1993-1994. The following forest communities were distinguished in the range: Circaeo-Alnetum, Luzulo pilosae-Fagetum - the poor variant and variant with Anemone nemorosa, Tilio-Carpinetum typicum, T.-C. stachyetosum, the pine-oak community in the habitat of Luzulo pilosae-Fagetum, the pine community in the habitat of an oak-hornbeam forest. The paper contains also the map of real vegetation of the Range and the list of 265 species of bryophyta and vascular plants.
Źródło:
Acta Universitatis Lodziensis. Folia Botanica; 2000, 14
0208-6174
Pojawia się w:
Acta Universitatis Lodziensis. Folia Botanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geobotaniczno-sozologiczna waloryzacja siedlisk przyrodniczych na wybranych fragmentach Błękitno-Zielonej Sieci
Geobotanical and sozological valorization of natural habitats in selected areas of the Blue-Green Network
Autorzy:
Łuczak, Marcin
Witosławski, Piotr
Andrzejewski, Hieronim
Kiedrzyński, Marcin
Kurowski, Józef K
Powiązania:
https://bibliotekanauki.pl/articles/970743.pdf
Data publikacji:
2006
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
geobotanical and sozological valorization
environment protection
Blue-Green Network concept
waloryzacja geobotaniczno-sozologiczna
ochrona przyrody
koncepcja Błękitno-Zielonej Sieci
Opis:
One of the key components of The Blue-Green Network in Łódź are valuable natural areas like the relicts of the natural wildlife (called “Green Treasures of Łódź”) which parts have been preserved in Łódź in spite of two hundred years, very intense urbanization processes. The result of years of geobotanical research in the city was establishing 23 areas of nature protection and proposing of 12 additional natural areas which need to be protected (8 areas of landscape protection and 4 ecological sites). Existing and proposed areas of nature protection, including river valleys, build the wildlife system of Łódź. Predominantly the important role in this concept play the Łódź’s river valleys with their vegetation potential. The Sokolowka River Valley which is located in the Northern-West part of Łódź was the exemplary research field for geobotanical and sozological valorization of the natural habitat of the Blue-Green Network. Within the Sokolowka valley there are retained fragments of precious nature ecosystems.
Źródło:
Acta Universitatis Lodziensis. Folia Biologica et Oecologica; 2006, Supplementum; 27-42
1730-2366
2083-8484
Pojawia się w:
Acta Universitatis Lodziensis. Folia Biologica et Oecologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Application of Selected Hierarchical Clustering Methods for Classification the Acoustic Emission Signals Generated by Partial Discharges
Autorzy:
Borucki, Sebastian
Łuczak, Jacek
Lorenc, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/2097707.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
acoustic emission method
acoustic signals
partial discharges
power transformer
clustering method
Opis:
The paper presents the results of the application of the hierarchical clustering methods for the classification of the acoustic emission (AE) signals generated by eight basic forms of partial discharges (PD), which can occur in paper-oil insulation of power transformers. Based on the registered AE signals from the particular PD forms, using a frequency descriptor in the form of the power spectral density (PSD) of the signal, their representation in the form of the set of points on plane XY was created. Next, these sets were subjected to analysis using research algorithms consisting of selected clustering methods. Based on the suggested numeric performance indicators, the analysis of the degree of reproduction of the actual distribution of points showing the particular time waveforms of the AE signals from eight adopted PD forms (PD classes) in the obtained clusters was carried out. As a result of the analyses carried out, the clustering algorithms of the highest effectiveness in the identification of all eight PD classes, classified simultaneously, where indicated. Within the research carried out, an attempt to draw general conclusions as to the selection of the most effective hierarchical clustering method studied and the similarity function to be used for classification of the selected basic PD forms.
Źródło:
Archives of Acoustics; 2021, 46, 3; 409-417
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of tumour characteristic and treatment modality on the local recurrence and the survival in patients with oral squamous cell carcinoma
Autorzy:
Kos, Marcin
Łuczak, Klaudiusz
Brusco, Daniel
Engelke, Werner
Powiązania:
https://bibliotekanauki.pl/articles/1398799.pdf
Data publikacji:
2008
Wydawca:
Index Copernicus International
Tematy:
oral cancer
oral neoplasms
prognostic factors
Opis:
Purpose of the study. To evaluate the impact of tumour location, local and regional advancement, histological differentiation, status of the surgical margins and radiotherapy on the disease-free time and overall survival rates in patients with oral squamous cell carcinoma. Material and methods. A retrospective analysis of 67 patients treated with surgery (61 pts.), radiotherapy (6 pts.) and their combination (28 pts.). Follow time on average 40 months. The probabilities of survival were assessed using the Kaplan-Meier estimates, the differences were calculated with the log-rank test. An analysis of the infl uence of the neck recurrences on the prognosis was additionally performed. Relationship between independent categorical variables as: primary local advancement, location of the tumour, histological grading and lymph node metastases was evaluated with Fisher´s Exact Test. Results. Disease-free time rate amounted to 40,1%. There was no independent prognostic importance of primary location, T-staging and N-staging, histological grading of the tumour or radiation on disease-free time, just opposite to the status of the resection margins. However, the number of neck metastases was directly proportional to the tumour dimension and poor histological differentiation. Overall survival rate amounted to 87,5%. Posterior location in the oral cavity, involvement of cervical lymph nodes, surgical margins with the presence of tumour cells, poor histological differentiation and necessity of irradiation negatively correlated with the survival. Conclusions. A complete resection of the tumour was the most important independent prognostic parameter for the disease-free and overall survivals in oral squamous cell carcinomas in this study. An adjuvant radiation therapy could improve the results of treatment of oral squamous cell carcinoma also in cases were so far considered only for surgical management.
Źródło:
Polish Journal of Otolaryngology; 2008, 62, 6; 722-726
0030-6657
2300-8423
Pojawia się w:
Polish Journal of Otolaryngology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

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