Search results for: foresters

• Annals of WULS, Forestry and Wood Technology

  Journals

  ISSN: 1898-5912

• Leakage Current Measurements of Surge Arresters

  Publication

  • M. Olesz
  • L. Litzbarski
  • G. Redlarski

  - ENERGIES - Year 2023

  The paper presents the methods of assessing the technical condition of varistor surge arresters used in laboratory tests and in operation—performed without disconnecting the arresters from the network. The analysis of the diagnostic methods was supplemented with the results of the measurements of the leakage current of arresters coming directly from their production and used in the power industry. Among the available methods of...

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• Quality assessment of low voltage surge arresters

  Publication

  • L. Litzbarski
  • M. Olesz
  • S. Wojtas
  • M. J. Winiarski
  • T. Klimczuk
  • H. Glowinski
  • B. Andrzejewski

  - IEEE Access - Year 2022

  Users expect reliable operation of the surge arrester during overvoltages, which may originate from a switching process or a lightning discharge. The necessary conditions to guarantee these expectations are: appropriate construction of the surge arrester, its production being maintained in accordance with technical standards, and a positive results of the type test (as well routine and acceptance tests). The recipient, especially...

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• Outlier Detection with the Use of Isolation Forests

  Publication

  • K. Najman
  • K. Zieliński

  - Year 2021

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• Straightened characteristics of McKendrick-von Foerster equation

  Publication

  • A. Bartłomiejczyk
  • H. Leszczyński
  • M. Matusik

  - JOURNAL OF DIFFERENTIAL EQUATIONS - Year 2022

  We study the McKendrick-von Foerster equation with renewal (that is the age-structured model, with total population dependent coefficient and nonlinearity). By using a change of variables, the model is then transformed to a standard age-structured model in which the total population dependent coefficient of the transport term reduces to a constant 1. We use this transformation to get existence, uniqueness of solutions of the problem...

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• Newton’s Method for the McKendrick-von Foerster Equation

  Publication

  • A. Bartłomiejczyk
  • M. Wrzosek

  - Year 2020

  In the paper we study an age-structured model which describes the dynamics of one population with growth, reproduction and mortality rates. We apply Newton’smethod to the McKendrick-von Foerster equation in the semigroup setting. We prove its first- and second-order convergence.

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• Malaysian Forester

  Journals

  ISSN: 0302-2935

• FORESTRY

  Journals

  ISSN: 0015-752X , eISSN: 1464-3626

• Chemical Composition of Atmospheric Air in Nemoral Scots Pine Forests and Submountainous Beech Forests: The Potential Region for the Introduction of Forest Therapy

  Publication

  • T. Dudek
  • M. Marć
  • B. Zabiegała

  - International Journal of Environmental Research and Public Health - Year 2022

  Studies show that forests are one of the main recreational destinations. This can be explained by their beneficial effects on the health of their visitors, which can be attributed to compounds from the terpene group. The aim of this research was to determine the chemical composition of air in the interiors of Nemoral Scots pine forests and submountainous beech forests, with the determination of compounds of the terpene group. Samples...

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• Methods of estimating the elements of water balance in a forested catchment basin

  Publication

  • B. Osuch
  • W. Gądek
  • A. Homa
  • M. Cebulska
  • R. Szczepanek
  • A. Hebda-Małocha

  - Journal of Water and Land Development - Year 2009

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• Forster energy transfer from nonexponentially decaying donors

  Publication

  • A. Czuper
  • I. Gryczyński
  • J. Kuśba

  - JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY - Year 2007

  Przedyskutowano niezbędne modyfikacje stałej szybkości transferu foersterowskiego w sytuacji, kiedy zanik fluorescencji donora w nieobecności akceptora jest nieeksponencjalny. Stwierdzono, że najbardziej przydatna modyfikacja wynika założenia jednakowej wartości stałej zaniku radiacyjego dla wszystkich molekuł donora.

• Existence and uniqueness of solutions for single-population McKendrick-von Foerster models with renewal

  Publication

  • A. Bartłomiejczyk
  • H. Leszczyński
  • P. Zwierkowski

  - ROCKY MOUNTAIN JOURNAL OF MATHEMATICS - Year 2015

  We study a McKendrick-von Foerster type equation with renewal. This model is represented by a single equation which describes one species which produces young individuals. The renewal condition is linear but takes into account some history of the population. This model addresses nonlocal interactions between individuals structured by age. The vast majority of size-structured models are also treatable. Our model generalizes a number...

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• AUSTRALIAN FORESTRY

  Journals

  ISSN: 0004-9158 , eISSN: 2325-6087

• Forestry Letters

  Journals

  ISSN: 0079-4708 , eISSN: 2450-4920

• FORESTRY CHRONICLE

  Journals

  ISSN: 0015-7546 , eISSN: 1499-9315

• Forestry Journal

  Journals

  ISSN: 0323-1046

• Forestry Studies

  Journals

  ISSN: 1406-9954

• Forestry Ideas

  Journals

  ISSN: 1314-3905

• JOURNAL OF FORESTRY

  Journals

  ISSN: 0022-1201 , eISSN: 1938-3746

• Agriculture and Forestry

  Journals

  ISSN: 0554-5579 , eISSN: 1800-9492

• Invasive giant hogweeds in Poland: Risk of burns among forestry workers and plant distribution

  Publication

  • P. Rzymski
  • P. Klimaszyk
  • B. Poniedziałek

  - BURNS - Year 2015

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• Habitat displacement effect between two competing owl species in fragmented forests

  Publication

  • Ł. Kajtoch
  • M. Żmihorski
  • P. Wieczorek

  - POPULATION ECOLOGY - Year 2015

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• NEW FORESTS

  Journals

  ISSN: 0169-4286 , eISSN: 1573-5095

• Southern Forests

  Journals

  ISSN: 2070-2620 , eISSN: 2070-2639

• What fosters firm-level labour productivity in Eastern European and Central Asian countries?

  Publication

  • A. Kordalska
  • M. Olczyk

  - Bank i Kredyt - Year 2020

  This study examines labour productivity performance and its determinants in Eastern European and Central Asian (EECA) firms using micro-level data. We find significant differences in labour productivity among members of the European Union in Eastern Europe and other Eastern European and Central Asian countries. We also confirm the important impact of foreign ownership, exporter status, and highly skilled workers on productivity...

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• Revue Forestiere Francaise

  Journals

  ISSN: 0035-2829

• Hazel Grouse occurrence in fragmented forests: habitat quantity and configuration is more important than quality

  Publication

  • Ł. Kajtoch
  • M. Żmihorski
  • Z. Bonczar

  - EUROPEAN JOURNAL OF FOREST RESEARCH - Year 2012

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• Tree rings as an indicator of atmospheric pollutant deposition to subalpine spruce forests in the Sudetes (Southern Poland)

  Publication

  • M. Godek
  • M. Sobik
  • M. Błas
  • Ż. Polkowska
  • P. Owczarek
  • A. Bokwa

  - ATMOSPHERIC RESEARCH - Year 2015

  In spite of their moderate altitude (1000–1600m a.s.l.), the Western SudetyMountains belong to areas with the most efficient fog precipitation in Europe. Intense industrial activity in the area of windward western foothills caused an exceptional intensification of atmospheric pollutant deposition via precipitation and fog to take place since the 1950s. In the second half of the 1970s a massive spruce forest dieback began affecting...

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• Small-Scale Forestry

  Journals

  ISSN: 1873-7617 , eISSN: 1873-7854

• Journal of Sustainable Forestry

  Journals

  ISSN: 1054-9811 , eISSN: 1540-756X

• JOURNAL OF FORESTRY RESEARCH

  Journals

  ISSN: 1007-662X , eISSN: 1993-0607

• iForest-Biogeosciences and Forestry

  Journals

  ISSN: 1971-7458

• Current Forestry Reports

  Journals

  ISSN: 2198-6436

• Arboriculture and Urban Forestry

  Journals

  ISSN: 1935-5297

• INTERNATIONAL FORESTRY REVIEW

  Journals

  ISSN: 1465-5489 , eISSN: 2053-7778

• Journal of Forestry Engineering

  Journals

  ISSN: 2096-1359

• Social media as an opportunity or a blind alley in social communication and forest education? – Experiences from Poland

  Publication

  • R. Lewoń
  • N. Korcz

  - BALTIC FORESTRY - Year 2021

  The article characterizes the experiences, problems, and prospects for the development of forest education on social media, which in Poland has been carried out by the Państwowe Gospodarstwo Leśne Lasy Państwowe (National Forest Holding ‘State...

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• Investigating impacts of asphalt mixture properties on pavement performance using LTPP data through random forests

  Publication

  • H. Gong
  • Y. Sun
  • W. Hu
  • P. Polaczyk
  • B. Huang

  - CONSTRUCTION AND BUILDING MATERIALS - Year 2019

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• Grzyby wielkoowocnikowe (macromycetes) Doliny Zielonej (Lasy Oliwskie) = The report of macromycetes in Zielona Valley (Oliwskie Forests)

  Publication

  • M. Wilga

  - Year 2004

  W artykule wyszczególniono 203 gatunki grzybów wielkoowocnikowych (macromycetes) stwierdzonych w Dolinie Zielonej, położonej w Lasach Oliwskich, z podziałem na klasy I rzędy. Zaznaczono te taksony, które znajdują się pod ochroną oraz na "czerwonej liście makrogrzybów". Opisano krótko kilka interesujących taksonów - podano ich miejsce występowania. Zamieszczono krótki opis budowy geomorfologicznej Doliny Zielonej, wymieniono gatunki...

• Forests

  Journals

  ISSN: 1999-4907

• Assessment of damage to trees in the Herby Forestry District caused by glazed frosts and snow during severe weather in January 2010

  Publication

  • G. Urban
  • W. Gil
  • T. Zachara

  - Leśne Prace Badawcze - Year 2011

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• Forests Trees and Livelihoods

  Journals

  ISSN: 1472-8028

• Trees Forests and People

  Journals

  eISSN: 2666-7193

• What makes a group worth dying for? Identity fusion fosters perception of familial ties, promoting self-sacrifice.

  Publication

  • W. Swann
  • M. Buhrmester
  • A. Gómez
  • J. Jetten
  • B. Bastian
  • A. Vázquez
  • A. Ariyanto
  • T. Besta
  • O. Christ
  • L. Cui... and 7 others

  - JOURNAL OF PERSONALITY AND SOCIAL PSYCHOLOGY - Year 2014

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• Getting to know the potential of social media in forest education

  Publication

  • R. Lewoń
  • E. Pirożnikow

  - Leśne Prace Badawcze - Year 2019

  The development of social network sites not only facilitates the acquisition and deepening of knowledge but also provides the possibility of easily contacting foresters, specialists in natural sciences and nature enthusiasts. In addition, for some years...

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• WESTERN JOURNAL OF APPLIED FORESTRY

  Journals

  ISSN: 0885-6095

• Indonesian Journal of Forestry Research

  Journals

  ISSN: 2355-7079 , eISSN: 2406-8195

• International Journal of Forestry Research

  Journals

  ISSN: 1687-9368

• Central European Forestry Journal

  Journals

  ISSN: 2454-034X , eISSN: 2454-0358

• Lesnoy Zhurnal-Forestry Journal

  Journals

  ISSN: 0536-1036