Bibliografie tematiche / Bark area

Letteratura scientifica selezionata sul tema "Bark area"

Autore: Grafiati

Pubblicato: 8 giugno 2024

Cita una fonte nei formati APA, MLA, Chicago, Harvard e in molti altri stili

Scegli il tipo di fonte:

Consulta la lista di attuali articoli, libri, tesi, atti di convegni e altre fonti scientifiche attinenti al tema "Bark area".

Accanto a ogni fonte nell'elenco di riferimenti c'è un pulsante "Aggiungi alla bibliografia". Premilo e genereremo automaticamente la citazione bibliografica dell'opera scelta nello stile citazionale di cui hai bisogno: APA, MLA, Harvard, Chicago, Vancouver ecc.

Puoi anche scaricare il testo completo della pubblicazione scientifica nel formato .pdf e leggere online l'abstract (il sommario) dell'opera se è presente nei metadati.

Articoli di riviste sul tema "Bark area":

Wilms, Florian, Nils Duppel, Tobias Cremer e Ferréol Berendt. "Bark Thickness and Heights of the Bark Transition Area of Scots Pine". Forests 12, n. 10 (11 ottobre 2021): 1386. http://dx.doi.org/10.3390/f12101386.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

The estimation of forest biomass is gaining interest not only for calculating harvesting volumes but also for carbon storage estimation. However, bark (and carbon) compounds are not distributed equally along the stem. Particularly when looking at Scots pine, a radical change in the structure of the bark along the stem can be noted. At the bark transition area, the bark changes from thick and rough to thin and smooth. The aim of our study was (1) to analyze the height of the bark transition area where the bark structure changes and (2) to analyze the effect of cardinal direction on the bark thickness. Regression analyses and forward selection were performed including measured tree height, DBH, bark thickness, crown base height and upper and lower heights of the bark transition areas of 375 trees. While the cardinal direction had no effect on bark thickness, DBH was found to have a significant effect on the heights of the bark transition areas, with stand density and tree height having a minor additional effect. These variables can be used to estimate timber volume (without bark) with higher accuracy and to predict the carbon storage potential of forest biomass according to different tree compartments and compounds.

Wang, Shaoke, M. A. Brick e C. E. Townsend. "Response of alfalfa to bidirectional selection for root bark area and xylem vessel diameter". Canadian Journal of Plant Science 71, n. 2 (1 aprile 1991): 427–35. http://dx.doi.org/10.4141/cjps91-059.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

Development of alfalfa [Medicago sativa L. ssp. sativa and M. sativa ssp. falcata (L.) Arcangeli] germplasm with contrasting root bark area and xylem vessel area could be useful to evaluate relationships between anatomical root characteristics and plant functions such as drought tolerance. This study was conducted to determine the response of alfalfa to bidirectional selection for root bark area and xylem vessel area of the largest vessels as viewed in cross section. Bidirectional selection for large and small root bark area and for large and small xylem vessel area was conducted for two cycles. Selection for high root bark area resulted in an increase in root bark area in cycle one (C1), but no further response occurred in cycle two (C2). Response to selection for low bark area resulted in no response in the C1, but a response occurred in the C2. Response to selection for large xylem vessel area increased xylem area in the C1 but no further response occurred in the C2. There was no response to selection for small vessel area in either of the two cycles of selection. Asymmetrical responses to bidirectional selection were found. Root size increased significantly over the two cycles of selection and was probably due to indirect selection for large root size. Key words: Medicago sativa L., ssp. sativa and M. sativa ssp. falcata (L.) Arcangeli, root bark area, xylem vessel diameter

Kula, E., e W. Ząbecki. "Merocoenoses of cambioxylophagous insect fauna of Norway spruce (Picea abies [L.] Karst.) with focus on bark beetles (Coleoptera: Scolytidae) and types of tree damage in different gradation conditions". Journal of Forest Science 56, No. 10 (30 settembre 2010): 474–84. http://dx.doi.org/10.17221/33/2010-jfs.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

Research on merocoenoses of cambioxylophagous insect fauna of Norway spruce (Picea abies [L.] Karst.) was carried out in spruce stands of different age in the area with an endemic population (Moravian-Silesian Beskids, Czech Republic) and in the area with an epidemic population (Beskid Żywiecki, Poland) of the eight-toothed spruce bark beetle Ips typographus (L.). The structure of merocoenoses was characterized separately for standing trees attacked by bark beetles, trees struck by lightning, trees affected by fungal pathogens and wind-felling and trees in the form of snags and fragments. The occurrence of cambioxylophagous insects, mostly bark beetles (Coleoptera: Scolytidae), was compared between the study areas with emphasis on dominant facultative primary bark beetles and types of damage to spruce trees.  

Świercz, A. "Suitability of pine bark to evaluate pollution caused by cement-lime dust". Journal of Forest Science 52, Special Issue (1 gennaio 2006): S93—S98. http://dx.doi.org/10.17221/10166-jfs.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

The aim of this paper is to show the application of pine bark to indicate the level of air contamination by cement-lime dust and to determine the impact range of cement plants. The pine bark was analyzed in the forested formed around three cement plants in the Świętokrzyski administrative district (South of Poland). The test results were compared with the results gained from the controlled forested areas, free from alkali contamination. The strongly alkali areas show high pHH2O of bark in the range of 7.2–8.5 and low coefficient of change v% = 2.2. The pine bark values of pHH2O in the alkali areas are on average 2.5 times as high as those achieved in the controlled area (natural pH of bark shows the range of 2.8–3.5). On the basis of the measurements of pHH2O there are five alkali-forested spheres determined. The existence of the forest spheres confirms the variable mineral composition of the bark, and first of all the variable content of calcium, magnesium, potassium, aluminium, manganese, zinc and iron as a function of the distance from the emitter and real dust fall.

Konôpka, Bohdan, Vladimír Šebeň, Jozef Pajtík e Lisa A. Shipley. "Influence of Tree Species and Size on Bark Browsing by Large Wild Herbivores". Plants 11, n. 21 (30 ottobre 2022): 2925. http://dx.doi.org/10.3390/plants11212925.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

Although an important part of the ecosystem, large wild herbivores (LWH), especially red deer (Cervus elaphus L.), cause significant damage to economically valuable timber in forests of Central Europe. Recent work has demonstrated that less valuable softwood broadleaved trees can act as “biological control” that helps reduce bark browsing on more valuable trees in a mixed stand. To better understand the factors that influence how much bark area and mass are removed by LWH from these broadleaved trees, we took advantage of a novel “natural” experiment that occurred after a breach in a herbivory exclosure surrounding a 10-year old mixed broadleaved/conifer stand in the Western Carpathians in north-western Slovakia. We measured the area of old (up to 2 years previously) and new browsed patches on stems of common aspen (Populus tremula L.), common rowan (Sorbus aucuparia L.) and goat willow (Salix caprea L.), and their position along the vertical profile of the stem. The browsed bark area (cm2) was then converted to the bark mass (g) removed and the proportion of browsed bark to total bark (%) using conversion equations. Our models demonstrated that the amount of bark removed was influenced by tree species, stem diameter, age of browsing (old vs. new), and stem section along the vertical profile. LWH removed the most bark area from willow but the most bark mass from aspen because aspen had thicker bark than the other tree species. Bark browsing was greater on trees > 6 cm basal diameter. The distribution of bark browsing along the vertical profile was symmetrical (unimodal) with maximum intensity at 101–125 cm from the ground, which corresponds with the height most optimal for feeding by red deer. However, previous browsing in 2019 and 2020 caused new browsing on willow in 2021 to be focused in stem sections lower (51–75 cm) and higher (126–150 cm) than that optima. By quantifying browsing patterns and the amount of bark that is accessible to LWH for forage on the most attractive softwood broadleaved trees, our work will contribute to developing better methods for protecting commercially important species such as European beech (Fagus sylvatica L.) and Norway spruce (Picea abies L. Karst.) in areas of Central Europe that are greatly affected by increasing population density of LWH, especially red deer.

Park, Sung-Jin, Byung-Wook Yang, Young-Tae Hahm, Deog-Hwan Oh, Jung-Beom Kim, Ji-Yun Yang e Byung-Sun Kang. "Antioxidative Activities of Rhus verniciflua Bark from Different Area". Korean Journal of Food And Nutrition 25, n. 3 (30 settembre 2012): 430–35. http://dx.doi.org/10.9799/ksfan.2012.25.3.430.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

M, SURIACHANDRASELVAN, VIJAYARAGHAVAN H e BHASKARAN R. "PATHOPHYSIOLOGY OF THANJAVUR WILT AFFECTED COCONUT PALMS". Madras Agricultural Journal 80, March (1993): 134–37. http://dx.doi.org/10.29321/maj.10.a01632.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

The sugar-phenol relationship of Thanjavur wilt-affected coconut palms was studied in detail. In the diseased palms, there was an increase of total and reducting sugars in tissues of root, bark and cortex of bleeding area. In leaf, no marked difference could be seen in total sugars but there was reduction in reducing sugars. The bark and cortex above the bleeding area also showed high concentrations of both total and reducing sugars. Non-reducing sugars also accumulated in root, leaf, bark and cortex of severaly affected palms. Total phenol content also increased in leaf, bark and cortex while in root, there was no significant difference. The content of Ortho dihydroxy phenols was also high in bark and cortex while there was no marked difference in leaf and root. The bark and cortex above the bleeding area of wilt affected palms also showed more total and ortho dihydroxyphenols than apparently healthy palms

Jové, Patricia, M. Àngels Olivella e Laura Cano. "Study of the variability in chemical composition of bark layers of Quercus suber L. from different production areas". BioResources 6, n. 2 (7 aprile 2011): 1806–15. http://dx.doi.org/10.15376/biores.6.2.1806-1815.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

Cork is the bark of the cork oak tree (Quercus suber L), a renewable and biodegradable raw bioresource concentrated mainly in the Mediterranean region. Development of its potential uses as a biosorbent will require the investigation of its chemical composition; such information can be of help to understand its interactions with organic pollutants. The present study investigates the summative chemical composition of three bark layers (back, cork, and belly) of five Spanish cork samples and one cork sample from Portugal. Suberin was the main component in all the samples (21.1 to 53.1%), followed by lignin (14.8 to 31%), holocellulose (2.3 to 33.6%), extractives (7.3 to 20.4%), and ash (0.4 to 3.3%). The Kruskal-Wallis test was used to determine whether the variations in chemical composition with respect to the production area and bark layers were significant. The results indicate that, with respect to the bark layer, significant differences were found only for suberin and holocellulose contents: they were higher in the belly and cork than in the back. Based on the results presented, cork is a material with a lot of potential because of its heterogeneity in chemical composition.

Da Silva, Jéssica Maus, Ervandil Corrêa Costa, Eli Nunes Marques e Emanuel Arnoni Costa. "Monitoring of Population of Scolytinae in Olive Culture". Journal of Agricultural Science 10, n. 8 (10 luglio 2018): 457. http://dx.doi.org/10.5539/jas.v10n8p457.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

Monitoring of insects is important to analyze the species present in culture of economic interest, to verify the period of highest incidence and quantify the damages caused by the pest insects. Here, we aim to assess the diversity of bark beetles in an olive orchard. The experiment was assessed in fortnightly series throughout a year and conducted with a completely randomized experimental design, consisting of three treatments: T1: homogeneous olive culture; T2: heterogeneous olive culture; T3: border area. An ethanol trap was used for the sampling of bark beetles. The species Hypothenemus eruditus, Xyleborus linearicolis and Hypothenemus seriatus showed greater abundance among the treatments. The decrease of abundance, diversity and dominance of bark beetles occurred in the heterogeneous culture (T2). Homogeneous cultures (T1) are more susceptible to the attack of pest-insects due to the lower ecological balance among associate, predator or parasitoid insects. Border areas (T3) showed an increased diversity of arboreal species, favoring the higher incidence of insects. In spring, there is a greater incidence of bark beetles, what reinforces the need for monitoring during this period. So far, there are no evidences of bark beetles infesting olive trees in the area, or the presence of Phloeotribus scarabaeoides, which is the pest bark beetle of olive cultures.

Rimondi, Valentina, Renato Benesperi, Marc W. Beutel, Laura Chiarantini, Pilario Costagliola, Pierfranco Lattanzi, Daniela Medas e Guia Morelli. "Monitoring of Airborne Mercury: Comparison of Different Techniques in the Monte Amiata District, Southern Tuscany, Italy". International Journal of Environmental Research and Public Health 17, n. 7 (31 marzo 2020): 2353. http://dx.doi.org/10.3390/ijerph17072353.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

In the present study, mercury (Hg) concentrations were investigated in lichens (Flavoparmelia caperata (L.) Hale, Parmelia saxatilis (L.) Ach., and Xanthoria parietina (L.) Th.Fr.) collected in the surrounding of the dismissed Abbadia San Salvatore Hg mine (Monte Amiata district, Italy). Results were integrated with Hg concentrations in tree barks and literature data of gaseous Hg levels determined by passive air samplers (PASs) in the same area. The ultimate goal was to compare results obtained by the three monitoring techniques to evaluate potential mismatches. Lichens displayed 180–3600 ng/g Hg, and Hg concentrations decreased exponentially with distance from the mine. Mercury concentration was lower than in Pinus nigra barks at the same site. There was a moderate correlation between Hg in lichen and Hg in bark, suggesting similar mechanisms of Hg uptake and residence times. However, correlation with published gaseous Hg concentrations (PASs) was moderate at best (Kendall Tau = 0.4–0.5, p > 0.05). The differences occurred because a) PASs collected gaseous Hg, whereas lichens and barks also picked up particulate Hg, and b) lichens and bark had a dynamic exchange with the atmosphere. Lichen, bark, and PAS outline different and complementary aspects of airborne Hg content and efficient monitoring programs in contaminated areas would benefit from the integration of data from different techniques.

Più fonti

Tesi sul tema "Bark area":

DeGomez, Tom. "Guidelines for Thinning Ponderosa Pine for Improved Forest Health and Fire Prevention". College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2006. http://hdl.handle.net/10150/146952.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

7 pp.
Preventing catastrophic stand replacing events are best accomplished through thinning. Lower tree densities result in greater tree growth. Stands with lower tree densities have greater plant diversity. Determining stand conditions will provide a baseline for formulating a plan to improve stand conditions. Thinning around individual trees can improve individual tree health reducing the likelihood of damage from bark beetles, fire or drought.

McMullen, Sarah Margaret. "Tectonic evolution of the Bark Lake area, eastern Central Gneiss Belt, Ontario Grenville, constraints from geology, geochemistry and U-Pb geochronology". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0010/MQ48503.pdf.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

McMullen, Sarah Margaret Carleton University Dissertation Earth Sciences. "Tectonic evolution of the Bark Lake area, Eastern Central Gneiss Belt, Ontario Grenville; constraints from geology, geochemistry and U-Pb geochronology". Ottawa, 1999.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Umoru, Joseph Adejo. "Characteristics assessment of aspen logs used in the production of matches". Thesis, Linnéuniversitetet, Institutionen för skog och träteknik (SOT), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-75913.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

Aspen (Populus tremula L.) accounts for about 2% of the total wood stock in Sweden. Sawmills use only a small part (about 5,000 m³fub) of round wood aspen per year. Since there are no Swedish gradings and design values for aspen, no aspen is used for structural purposes. This also applies to other hardwood trees in Sweden. Aspen is mainly used for pulp and paper with a mass consumption of 800,000 m³fub per year of which about 50% is imported. Most imported aspen is from Russia and the Baltics. The other major use of aspen is in match industries. Consumption for matches amounts to approximately 30,000 m³fub per year in Sweden. The aim of the research work was to increase knowledge on the wood quality of aspen used in the production of matches. Aspen (Populus tremula L.) logs were collected from two different sites in Sweden and a non-destructive tools weas used to estimate the modulus of elasticity in logs. To measure the dynamic modulus of elasticity (MOEdyn), Fakopp resonance log grader used. Other properties like density and moisture content were measure and were correlated with the MOEdyn values in order to identify the site that has a better log quality. Besides, horizontal and vertical variation of different wood properties were measured and compared within and between trees from two different sites in order to justify the variation of log quality. A total of 20 trees from Askaremåla and Vimmerby, Sweden were felled and used in this study. From each tree, 3 m long logs were sampled from each base, middle and top. After that, non-destructive evaluations were performed in those logs. Besides, 5 cm thick discs were collected in every tree height (base, middle and top) to measure horizontal and vertical variations. This study shows that there were differences in MOEdyn between and within trees. It was evident that trees collected from Vimmerby had a better log property than that in Askaremåla. Using non-destructive tools, it is possible to sort out quality logs for the production of Swedish matches.

Hedvall, Per-Olof. "Situerad design för alla : till improvisationens lov /". Lund : Centrum för rehabiliteringsteknisk forskning, 2007. http://www.certec.lth.se/publikat.asp?sidename=publikationer&area=4.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Bauer, Rodolphe. "La modélisation du volume des compartiments riches en composés chimiques extractibles (écorce et nœud) dans six essences d'intérêt des régions Grand-Est et Bourgogne Franche-Comté". Electronic Thesis or Diss., Paris, AgroParisTech, 2021. http://www.theses.fr/2021AGPT0025.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

Dans un contexte de renouvellement de l'industrie chimique et de recherche de nouveaux débouchés pour la foresterie, les extractibles deviennent des molécules de plus en plus intéressantes, tant écologiquement que financièrement parlant. Afin d'évaluer la pertinence de ces molécules comme nouvelle ressource pour la chimie et potentiel débouché pour la foresterie, il est nécessaire de faire une évaluation préalable de la ressource. Ceci nécessite de connaître le volume des compartiments riches en extractibles, particulièrement les écorces et les nœuds. La présente étude s'intéresse donc à la modélisation des volumes d'écorce et de nœuds. Elle se concentre spécifiquement sur deux régions françaises, le Grand Est et la Bourgogne-Franche-Comté et six essences d'importance, Abies alba, Picea abies, Pseudotsuga menziesii, Quercus robur, Quercus patraea, Fagus sylvatica.Cette étude est rendue possible grâce à l'utilisation d'une grande base de données comprenant des mesures d'épaisseur d'écorce pratiquées à différentes hauteurs sur la tige de nombreux arbres. D'autre part de nouveaux échantillonnages ont eu lieu ce qui a permis d'obtenir, grâce à l'utilisation d'un scanner à rayon X, une image informatique des nœuds et d'en mesurer précisément le volume.Afin de modéliser la quantité d'écorce disponible trois types de modèles ont été construits, des modèles de prédiction du volume d'écorce, des modèles de prédiction de la surface d'écorce le long de la tige et des modèles de prédiction de l'épaisseur d'écorce à 1m30. Les premiers ont permis d'atteindre une racine de l'erreur quadratique moyenne relative (RMSErel) comprise entre 16.7 % et 27.5 % en fonction des espèces.L'étude portant sur les modèles de surface d'écorce a permis de mettre en évidence la possibilité d'utiliser un modèle indépendant du diamètre-sur-écorce mais que les modèles utilisant en entrée cet variable sont encore plus précis. Le RMSErel atteint par ces modèles de surface d'écorce varie entre 23 et 38 % en fonction de l'espèce et du modèle considéré. Ce travail a montré l'importance de l'utilisation de l'épaisseur d'écorce à 1m30 comme donnée d'entrée. Celle-ci n'étant aujourd'hui que rarement mesurée, elle a aussi été modélisée à partir du D130. Cela a permis de mettre en évidence une influence de l'altitude sur l'épaisseur d'écorce à 1m30 pour trois espèces : Abies alba, Picea abies, Fagus sylvatica. Les modèles obtenus atteignent un RMSErel allant de 26.8 % à 36 % en fonction de l'espèce considérée.Enfin, les volumes de nœuds ont commencé à être étudiés. Bien que ce travail n'ai pas été entièrement mené, il montre déjà l'importance de produire de nouveaux modèles de volume de nœuds. De plus leur quantité dans le bois semble, à ce stade de l'étude, trop peu importante pour dégager de grandes ressources en extractible, malgré leur grande richesse intrinsèque. Leur intérêt pourrait donc plus se trouver dans l'extraction de molécules spécifiques
In a context of renewal of the chemical industry and the search for new outlets for forestry, extractives are becoming increasingly interesting molecules, both ecologically and financially speaking. In order to evaluate the relevance of these molecules as a new resource for the chemical industry and a potential outlet for forestry, it is necessary to make a preliminary evaluation of the resource. This requires knowledge of the volume of compartments rich in extractable material, particularly bark and knots. The present study therefore focuses on modeling bark and knot volumes. It focuses specifically on two French regions, the Grand Est and the Bourgogne-Franche-Comté, and on six important species, Abies alba, Picea abies, Pseudotsuga menziesii, Quercu robur, Quercus patraea, and Fagus sylvatica.This study is made possible, on one hand, by the use of a large database including numerous measurements of bark thickness made at different heights on the stems of many trees. On the other hand, new samplings have been made to allow X-ray scanning of nodes all along the stem and thus to determine precisely the volume on a computer picture.In order to model the available amount of bark, three types of models were built, models predicting the volume of bark, models predicting the surface area of bark along the stem and models predicting the thickness of bark at 1m30. The former achieved a relative root mean square error (RMSErel) of 16.7% to 27.5% depending on the species.The study of bark area models showed that it was possible to use a model independent of diameter-over-bark but that model using this variable are more accurate. The RMSErel achieved by these bark area models varied between 23 and 38% depending on the species and model considered.This work showed the importance of using the bark thickness at 1m30 as an input data. As it is rarely measured today, it was also modelled using the DBH. This allowed us to show the influence of altitude on bark thickness at 1.30 m for three species: Abies alba, Picea abies, Fagus sylvatica. The models obtained RMSErel of the models ranged from 26.8 to 36 % of RMSErel depending on the species considered.Finally, knot volumes have started to be studied. Although this work has not been fully completed, it already shows the importance of producing new models in order to fit the predicted knot patterns as closely as possible to reality. Moreover, the quantity of these compounds in the wood seems, at this stage of the study, to be too small to provide a large extractable resource, despite their great intrinsic richness. Their interest could therefore be more in the extraction of specific molecules

Yeboah, Eric Adjei. "Determinants of bank net interest margin : does monetary union membership matter?" Thesis, Brunel University, 2016. http://bura.brunel.ac.uk/handle/2438/14563.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

The purpose of this thesis is to carry out an empirical investigation into whether membership of monetary union matter in the determination of bank net interest margin. Bank net interest margin is the difference in bank borrowing and lending rates relative to the total interest-earning assets. We operationalise this study by comparing panels of commercial banks within and outside economic and monetary unions in Europe and Sub-Saharan Africa. For our European analysis we use bank-level data from nine Euro Area countries and seven non-Euro Area economies, in a dynamic empirical model, employing Arellano and Bover (1995)/Blundell and Bond (1998) system GMM estimation method. We find that stronger competition and efficiency, as well as greater macroeconomic stability in the Euro Area reduce bank net interest margins more than in the non-Euro Area. We attribute this to the well-developed single market with a strong socio-economic cohesion underpinning rather than the economic and monetary union. We extend the same level of analysis to the Sub-Saharan Africa, where we contrast our findings in the West African Economic and Monetary Union (WAEMU) with those of twenty non-monetary union Sub-Saharan African economies. Our findings in the Sub-Saharan African context reveal a rather different scenario. While the WAEMU enjoys relatively lower net interest margins than its non-monetary union counterparts, this is attributable to the union’s ability to pursue vigorously its primary objective of maintaining price stability by maintaining lower interest rates. Unlike in the Euro Area we do not observe a reducing impact of bank competition and efficiency on bank net interest margin in the West African Economic and Monetary Union (WAEMU) as we do in the non-monetary union Sub-Saharan Africa. We find these results for the Sub-Saharan African analysis puzzling, and attribute it to the absence of a well-developed single/common market which is supposed to drive competition and efficiency with the effect of reducing net interest margins, as it obtains in the Euro Area. Our conclusion is that it is rather the presence of a well-developed single market that engenders competition and efficiency effects to reduce bank net interest margins rather than membership of a monetary union per se.

寺本, 敦子, Atsuko TERAMOTO, 哲郎辻本 e Tetsuro TSUJIMOTO. "植生域を伴う砂州の地形変化-木津川下流域を例として-". 土木学会, 2005. http://hdl.handle.net/2237/8587.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Shih, Janet Wei. "Waiting for TOD : developing in the Millbrae BART Station Area". Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/73824.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

Thesis (M.C.P.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, 2012.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 128-133).
The suburban terminus station dedicates large amounts of land for parking in order to cater to its driving riders, and causes a trade-off tension between attracting ridership through providing park-and-rides and building transit-oriented development (TOD) within station areas. I focus my research on the Millbrae Intermodal Station, a suburban terminus station in the Bay Area Rapid Transit (BART) system, which is still waiting for a large amount of TOD to occur in its station area. The predominant research question for this thesis is: What are the challenges of creating TOD at suburban terminus stations and how can mixed use, highdensity, and human-scaled environments be better facilitated to become a reality? To answer this question, I took a mixed methods approach that included (1) evaluating ridership and parking supply data of all BART stations, (2) analyzing the primary and contextual case studies by comparing TOD plan documents to the current build-out reality of each station's station area, (3) conducting focused interviews with experts to gain insight on the barriers to implementing TOD at the Millbrae Station, and (4) developing a design proposition of how the Millbrae Station Area could engage alternative uses on its station parking lots. For all of the evaluated stations, parcels immediately approximate to the station had more difficulty realizing TOD than parcels further away from the station. Issues that surfaced as barriers to TOD included weak market conditions, land assemblage, construction costs, parking replacement standards, existing parcel ownership, and existing land use. In addition, TOD plans at more mature stations took an extensive period of time to become realized. To demonstrate how this inevitable waiting period could be more productive, I conclude by proposing design interventions and a strategy for how Millbrae, in the meantime, could apply and experiment with temporary flexible uses on its station parking lots.
by Janet Wei Shih.
M.C.P.

Onipede, Bolarinwa O. "Design of a cross section reduction extrusion tool for square bars". Texas A&M University, 2005. http://hdl.handle.net/1969.1/4880.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

The objective of this project is to design a tool for moderate cross section reduction of bars that are deformed within a channel slider tool that is used for equal channel angular extrusion (ECAE). The bars that are deformed via ECAE have an initial square cross section with a nominal value of 1.00 in2 and aspect ratios (length/width) ranging between 4 and 6. A systems engineering design methodology is used to generate a topbottom approach in the development of the tool's design. This includes defining a need statement, which is the "Need for an area reduction extrusion tool to replace the current practices of machining ECAE processed billets". The system functions and requirements are defined next and used to generate three concepts that are compared to select the winning concept for further refinement. Major components of the selected tool are: a container, ram, base plate, punch plate, four die-inserts, four wedges and four flange locks. For materials, such as copper (C10100) and aluminum (Al6061-T6), that can be processed by this tool, the upper bound extrusion pressure, which is derived by limit analysis, is set at 192 ksi. The upper bound extrusion pressure is constrained by the buckling limit of the ram, which is 202 ksi. The maximum wall stress experienced by the container is 113 ksi. For materials with the same cross section and dimensions, fixed end conditions of the Ram support larger bucking loads when compared to other end conditions such as rounded ends or rounded-fixed ends. With the application of the upper bound method, an increase in the extrusion ratio of the tool causes a corresponding rise in the optimal cone angle of the die further translating to a rise in the extrusion pressure.

Più fonti

Libri sul tema "Bark area":

United States. Forest Health Protection. Assessment and response to bark beetle outbreaks in the Rocky Mountain area: Report to Congress from Forest Health Protection, Washington Office, Forest Service, U.S. Department of Agriculture. A cura di Samman Safiya, Logan Jesse A e Rocky Mountain Research Station (Fort Collins, Colo.). Fort Collins, Colo. (2150 Centre Ave., Fort Collins 80526): U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Research Station, 2000.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

A, Rasmussen Lynn, a cura di. Bark beetle and wood borer infestation in the Greater Yellowstone Area during four postfire years. Ogden, UT: U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1996.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Safranyik, L. Line intersect sampling for the density and bark area of logging residue susceptible to the spruce beetle, Dendroctonus rufipennis (Kirby). Victoria, B.C: Pacific Forestry Centre, 1987.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

McConnell, Doug. Bay Area back roads. San Francisco: Chronicle Books, 1999.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

National Research Center on the Gifted and Talented, a cura di. Content area consultant bank directory. [Storrs, CT: NRC/GT, University of Connecticut], 1991.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Group, South Bank Employers, e Ove Arup & Partners., a cura di. South Bank Area: Traffic and pedestrian study. London: Ove Arup & Partners, 1992.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Jackson, P. L. Field analysis of estuarine restoration at the Astoria mitigation bank, 1990. [Corvallis, Or: Oregon State University, Dept. of Geosciences, 1990.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Wood, Sharron S., e Michele Laudig. Zagat 2013 San Francisco Bay Area nightlife. New York: Zagat Survey, 2012.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Banking, Maine Bureau of, a cura di. Economic area survey, December 31, 1989. Augusta, Me: The Bureau, 1990.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

1961-, Fagan Gabriel, e Morgan Julian 1966-, a cura di. Econometric models of the euro-area central banks. Cheltenham, UK: Edward Elgar, 2005.

Cerca il testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Più fonti

Capitoli di libri sul tema "Bark area":

Halldin, S. "Leaf and Bark Area Distribution in a Pine Forest". In The Forest-Atmosphere Interaction, 39–58. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5305-5_3.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Marx, G. "Injections in the lumbar area". In Back Pain, 139–42. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-2165-8_15.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Čihák, Martin, Thomas Harjes e Emil Stavrev. "Euro Area Monetary Policy in Uncharted Waters". In The European Central Bank at Ten, 87–117. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-14237-6_4.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

d'Auzac, J. "Tapping Systems and Area of Drained Bark". In Physiology of Rubber Tree Latex, 221–32. CRC Press, 2018. http://dx.doi.org/10.1201/9781351075695-10.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Vieito, Catarina, Preciosa Pires e Manuela Vaz Velho. "Pinus Pinaster Bark Composition and Applications". In Novel Technologies and Systems for Food Preservation, 174–89. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-7894-9.ch008.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

The food market is demanding natural antioxidants either to be applied to food or cosmetic and nutraceutical purposes. Plants are very rich in polyphenols that have diverse biological functions, such as defending plants against microbiological attacks, becoming essential to plant life. The bark of Pinus pinaster Aiton subsp. atlantica is known to have a great amount of polyphenols with antioxidant and antimicrobial properties. P. pinaster has a large area of distribution in the northwest of Portugal, making this source a biomass feedstock of great interest for the food industry in Portugal. Therefore, embarking on the trend of circular economy, polyphenols are being extracted aiming for the exploitation of their antioxidant and antimicrobial properties as a food additive in a variety of food matrices. This chapter aims to provide a more insightful view of the chemical composition, extraction methods, and food applications of pine bark of Pinus pinaster Aiton subsp. atlantica polyphenols.

Kotilainen, Eija-Maija. "Cultural history of the Pacific and the bark cloth making in Central Sulawesi". In Culture and History in the Pacific, 202–16. Helsinki University Press, 2021. http://dx.doi.org/10.33134/hup-12-13.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

Archaeologists, anthropologists and linguists are now in general agreement about the prehistory of the Austronesian-speakers, but most details are still obscure. The Philippines and the eastern part of Indonesia have received very little attention in research into the cultures of the Pacific region and the settling of the area by the Austronesian peoples. Based on ethnographical and linguistic evidence, bark cloth making has generally been regarded as a common feature of early Austronesian culture. Ethnography informs us that bark cloth making was known in large areas of Southeast Asia and Oceania, and also in Africa and Central and South America. The importance and position of bark cloth as part of the culture of the Austronesian people is illustrated by the persistence of its manufacture in many places. In this paper I examine in some detail the bark cloth production of the Kaili-Pamona speakers in Central Sulawesi (Celebes) and discuss how the study of their bark cloth may add to research into the cultural history of the Austronesian peoples. I argue that the vitality and important position of bark cloth as part of the culture of the Austronesian peoples is largely due to its central role in religious rituals and social practices. Thus, it is associated with the most sacred powers which represent the continuity and immortality of the society.

Sivrikaya, Fatih, Gonca Ece Özcan e Korhan Enez. "Predicting the Susceptibility to Pityokteines curvidens Using GIS with AHP and MaxEnt Models in Fir Forests". In Analytic Hierarchy Process - Models, Methods, Concepts, and Applications [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.1001074.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

One of the most harmful biotic factors in forests is the bark beetle (Coleoptera: Curculionidae: Scolytinae). They might have catastrophic consequences on the coniferous forest ecosystems, killing a lot of trees in forested area. One of the most significant pests of coniferous trees, particularly pine and fir, is the silver fir bark beetle, or Pityokteines curvidens. It may cause significant tree mortality and alter the structure and composition of forest ecosystems. The invasion of bark beetles is influenced by a variety of biotic and abiotic variables. Reducing the effects of potential infestations will benefit from early diagnosis of forest stands vulnerable to bark beetle infestations. The study focused on the comparison of Pityokteines curvidens susceptibility maps using the analytical hierarchy process (AHP), and Maximum Entropi (MaxEnt) methods. The research was carried out in the fir forests of the Kastamonu regional directorate of Forestry in the Western Black Sea region of Türkiye. The eight main criteria used to produce the map were the stand structure, site index, crown closure, stand age, slope, and bioclimatic variables. The map of the infested stands was used for the models' validation. The receiver operating characteristic (ROC) curves and area under the curve (AUC) were used to determine the accuracy of the maps. This study could help decision makers to produce bark beetle susceptibility maps easily and rapidly so they can take the necessary precautions to slow or prevent infestations.

Matsushita, Koji. "Legal and Administrative Aspects of Forest Pest and Disease Control in Japan". In Silviculture [Working Title]. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.95005.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

Approximately 40% of Japanese forests are softwood plantations consisting of trees such as Japanese cedar (Cryptomeria japonica), Japanese cypress (Chamaecyparis obtusa), and several varieties of pine (Pinus spp.). Policies and programs related to forest pests and diseases are important for growing forest plantations. Damage caused by the pine bark beetle (Monochamus alternatus) has been a long-standing problem in Japan. Forest damage caused by the pine bark beetle was first found in Nagasaki Prefecture in 1905. Since then, the area of damage has expanded gradually to all prefectures. Damage caused by pine bark beetles became serious during and just after the end of the Second World War. In 1950, the Natural Resource Section of the General Headquarters of the Allied Forces, Supreme Commander for the Allied Powers (GHQ/SCAP) made recommendations for how to control forest pests and diseases. The first act was enacted in 1950, although the control of forest pests was initially addressed as part of the first Forest Act of 1897. Several important reasons for why the Japanese government has failed to stop the expansion of the damaged area can be found in GHQ recommendations: the lack of coordinated programs, underutilization of damaged trees, and shortcomings of forest-management plans.

"Back Matter". In Grey Area, 165. UCL Press, 2019. http://dx.doi.org/10.2307/j.ctv8xnh8p.17.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

"stand-back area". In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik, 1297. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_196682.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Atti di convegni sul tema "Bark area":

Lyabzina, S. N., e D. F. Zinnikov. "THE USE OF PHEROMONE TRAPS IN TRAINING FIELD PRACTICE". In V International Scientific Conference CONCEPTUAL AND APPLIED ASPECTS OF INVERTEBRATE SCIENTIFIC RESEARCH AND BIOLOGICAL EDUCATION. Tomsk State University Press, 2020. http://dx.doi.org/10.17223/978-5-94621-931-0-2020-23.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

In field practice on invertebrate zoology and other subjects, in addition to the traditional methods of collecting insects, we can use pheromone traps. Traps were applied in studying the dynamics of xylophilous insects: a sawyer beetle and two bark beetles (an eight-dentated bark beetle and a six-dentated bark beetle). The pheromonitoring have been obtained seasonal variations in the number of populations and density of these species of some nature conservation area in Karelia. The collection efficiency of bark beetles during the period of the maximum number of species was about 600 individuals.

Szollosi-Mo?a, Andrei, Maria Prodan, Vasilica Irina Nalboc, Niculina Sonia Suvar e Nicolae Ianc. "BIOMONITORING OF HEAVY METAL POLLUTION THROUGH NEEDLES AND CONIFER BARK IN INDUSTRIAL AND URBAN AREAS OF THE JIU VALLEY". In 22nd SGEM International Multidisciplinary Scientific GeoConference 2022. STEF92 Technology, 2022. http://dx.doi.org/10.5593/sgem2022/5.1/s20.010.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

Certain studies have determined specific conifers, which can be found in urban and industrial areas can be used to monitor the degree of air pollution being used for passive biomonitoring processes. The needles and bark of conifers taken from the industrial and urban areas of the Jiu Valley, mercury, chromium) and arsenic, after acid mineralization of the samples of pine bark (Pinus sp.), spruce (Picea Abies) and thuja (Thuja Occidentalis) and those taken from these conifers in the urban area and in the vicinity of the industrial units in the Jiu Valley. The processing of experimental data allowed the use of conifers to detect the accumulation and degree of heavy metal pollution. The results of this study show that the highest concentrations of heavy metals were found in areas with heavy traffic, as well as in the vicinity of industrial areas, the Jiu Valley, being an area with a highly developed mining industry. The lowest concentrations of heavy metals in the analyzed samples were found in the vicinity of recreational areas and parks.

Skirin, F. V. "ВИДОВОЙ СОСТАВ ЛИШАЙНИКОВ И ЭКОЛОГО-СУБСТРАТНЫЕ ОСОБЕННОСТИ КОРЫ КАЛОПАНАКСА СЕМИЛОПАСТНОГО". In GEOGRAFICHESKIE I GEOEKOLOGICHESKIE ISSLEDOVANIIA NA DAL`NEM VOSTOKE. ИП Мироманова Ирина Витальевна, 2019. http://dx.doi.org/10.35735/tig.2019.57.80.011.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

Данная работа направлена на изучение видового состава эпифитных лишайников калопанакса семилопастного (диморфанта) и экологосубстратных особенностей его коры (ритидома). Работы проводились на юге Приморского края: на полуострове МуравьёваАмурского, в окрестностях посёлка Заводской (Артёмовский городской округ), на о. Русский и хребте Барачный (Надеждинский район). Заложено 9 пробных площадей. На калопанаксе были отобраны образцы эпифитных лишайников и коры (ритидома) для определения реакции рН. При выявлении видового состава эпифитных лишайников были использованы как собственные данные автора, так и литературные данные. Видовой состав эпифитных лишайников для калопанакса семилопастного включает 46 видов, 24 из которых, приводятся по литературным данным. Отмечено преобладание в видовом составе диморфанта накипных лишайников, что не характерно для форофитов с подобным типом коры. Исследованы экологосубстратные особенности коры диморфанта для деревьев различного возраста. Структура коры взрослого калопанакса сходна с таковой у дуба монгольского. Также, впервые был определен диапазон рН коры диморфанта. Отмечено сходство значений кислотности коры исследуемого форофита с таковыми для дуба монгольского, липы амурской и многих других деревьев. Отмечается, что видовое богатство и проективное покрытие лишайников на стволах калопанакса заметно ниже, чем у форофитов, имеющих сходные с ним характеристики коры и произрастающих в той же лесной формации. Отчасти это явление обуславливается особенностями коры молодых калопанаксов, отчасти общим снижением видового разнообразия эпифитных лишайников под антропогенным влиянием. Тем не менее, не удаётся выявить факторы, затрудняющие заселение стволов взрослых калопанаксов эпифитами, в условиях экосистем с высоким видовым разнообразием лишайников. Возможно, причина заключается в химическом составе ритидома дерева. В литературе упоминалось о подавлении роста бактерий золотистого стафилококка настоем коры калопанакса, однако сведений о влиянии химических компонентов его коры на лишайники или их отдельные компоненты не выявлено.This paper represents a study of a species composition of lichens that grows on Kalopanax septemlobus and ecosubstrate features of its bark. The area of study covers the south of Primorsky Krai at MuravyovAmursky peninsula near the Zavodskoy town (Artyomovskiy city district), at Russky island and at the Barachniy ridge (Nadezhdinsky district). 9 sample plots were placed. Epiphytic lichens and three bark samples for the pH determination was taken from kalopanax. For the identification of epiphytic lichens species composition both authors own data and literature data were used. Epiphytic lichens composition for the Kalopanax septemlobus includes 46 species, 24 of which are given according to literature data. Predominance of crustose thallus lichens over foliose thallus lichens was observed. This fact shows nontypical situation for the phorophytes with this type of bark. Ecosubstrate features of kalopanax bark were studied for threes of different ages. Bark structure of the mature kalopanax is similar to bark of Quercus mongolica. Also, there was the first time when pH range of kalopanax bark was identified. A similarity was noted between the acidity of the bark of the studied forophyte and those for Mongolian oak, Amur linden and many other trees. We have noted that biodiversity and projective cover of epiphytic lichens on kalopanax trunk is noticeably lower than for ones on the other threes that have similar bark properties and those are growing at the same forest ecosystem. Partly this phenomenon is caused by the peculiarities of the bark of young kalopanaks, partly by a general decrease in the species diversity of epiphytic lichens under anthropogenic influence. Nevertheless, it is not possible to identify factors that impede the colonization of adult kalopanax trunks with epiphytes in ecosystems with a high species diversity of lichens. Perhaps the reason is the chemical composition of tree ritidom. In the literature, it was mentioned that staphylococcus aureus bacteria growth was suppressed by infusion of kalopanax bark, however, no information was found on the effect of the chemical components of its bark on lichens or their separate components.

Iijima, K., H. Funaki, T. Tokizawa e S. Nakayama. "Distribution of Radioactive Cesium in Trees and Effect of Decontamination of Forest Contaminated by the Fukushima Nuclear Accident". In ASME 2013 15th International Conference on Environmental Remediation and Radioactive Waste Management. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icem2013-96113.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

In decontamination pilot projects conducted by Japan Atomic Energy Agency (JAEA), many different techniques were tested to determine their applicability to remediate areas evacuated after the Fukushima Daiichi nuclear accident following the Great Tohoku earthquake and tsunami of March 11, 2011. In addition to buildings, roads and farmland, the forest adjacent to living areas was one of the main decontamination targets. The projects evaluated the radioactive contamination of trees and the effectiveness of decontaminating a highly contaminated evergreen forest. This forest was located 1.3 km southwest of the Fukushima Daiichi Nuclear Power Plant and is dominated by Japanese cedar trees and fir trees. As the first step, three Japanese cedar trees and three fir trees were cut down and the distributions of radioactive cesium (Cs) were measured in each. The total concentrations of 134Cs and 137Cs in the leaves and branches were about 1 MBq/kg for both cedar and fir trees, and were appreciably higher than in the bark for cedar. The concentrations in the outer part of the trunks (under the bark) were lower, on the order of 10 kBq/kg, and those in the core of the trunks were lower than 1 kBq/kg for both kinds of trees. The observation that the Cs concentrations are higher in the outer part of trees, is compatible with the assumption that radio-Cs was mostly adsorbed on the surface of trees and partly penetrated into the trunks through the bark. Evolution of air dose rates in a 100 × 60 m pasture adjacent to the forest was monitored during decontamination of the forest and of the pasture itself. The dose rates in the pasture decreased drastically after stripping contaminated topsoil from the pasture and decreased slightly more after stripping contaminated topsoil of the forest floor and pruning the trees. Cutting down and removing 84 trees in the outermost area (10-m width) of the forest also slightly decreased these dose rates. After decontamination, the residual dose rates around the highly contaminated forest were mostly attributed to radioactive Cs existing in or on trees and topsoil in the untouched forest beyond the decontaminated area.

Simovski, Bojan, e Jane Acevski. "Some Dendrological Phenomena in Mavrovo National Park, North Macedonia". In 3rd International Congress on Engineering and Life Science. Prensip Publishing, 2023. http://dx.doi.org/10.61326/icelis.2023.30.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

This research relates to occurrence of some morphological and ecological features of native woody plants in Mavrovo National Park situated in north-western Republic of North Macedonia on an area of about 73,000 ha. The Park represents more than 45% of the dendroflora and nearly 19% of the forest communities in the country. The observations were done during the past fifteen years covering different aspects of both individual and social life of the dendroflora, and various ecological conditions. In this context, dozen dendrological phenomena were found to be important to note. Namely, very old individual trees of the Balkan endemic species and Arcto-Tertiary relic of horse chestnut (Aesculus hippocastanum) thriving as riparian population were found; old European hop-hornbeam (Ostrya carpinifolia) individuals on remote sites; old Austrian pine (Pinus nigra), and sycamore (Acer pseudoplatanus) trees; old groves of common ash (Fraxinus excelsior), and of Austrian pine; firs (Abies borisii-regis and A. alba) with form of smooth or rough bark and aggressive territorial expansion on thermo-mesophilic sites. European beech (Fagus sylvatica) with oak-bark form (‘quercoides’) also was found. Furthermore, the occurrence of the hemiparasite juniper dwarf mistletoe (Arceuthobium oxycedri) on savin juniper (Juniperus sabina) was identified. In addition, finding site of Cotoneaster parnassicus was found. A few phenomena were observed concerning the spruce-fir forest community (ass. Abieti-Piceetum scardicum): dieback of Norway spruce individuals (Picea abies), emergence of Balkan pine (Pinus peuce) initial population in the vicinity and presence of barberry (Berberis vulgaris) as steppe floral element together with expressed mesophilic species.

Staiger, Jeff D. "The Forest, The Trees, The Bark, The Pith: An Intensive Look at the Circulation Rates of Primary Texts in Ten Major Literature Areas at the University of Oregon Libraries". In Charleston Library Conference. Purdue Univeristy, 2020. http://dx.doi.org/10.5703/1288284317145.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Abstract (sommario):

This poster looks at the circulation rate for literary primary texts, which constitute a unique area of collecting in academic libraries: while they do not in most cases meet immediate research needs, it is assumed that libraries ought to acquire them, for reasons including future research needs, preservation of the cultural record, and the ability of members of the intellectual community to stay current, those these remain primarily tacit. The circulation trends of contemporary literary works in ten areas of literature (English, American, German, French, Italian, Spanish, Latin American, Chinese, Japanese, and Russian) over the past twenty years at the University of Oregon Knight Library are presented and the circulation turnover rate (CTR), for each of these subject areas are presented. Sample graphs allow for the comparison of circulation rates and numbers of books across time, and serve as examples of the utility of such visualizations of the numbers. The key question raised by the study is what makes a good CTR for a particular region of the collection? The poster concludes by summarizing the considerations that bear on the interpretation of the CTR as an index of how the collection is “working.”

"BACK MATTER". In Proceedings of the International Workshop (ARENA 2005). WORLD SCIENTIFIC, 2006. http://dx.doi.org/10.1142/9789812773791_bmatter.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Sakamoto, Seiichi, Tetsuo Hasegawa, Masahiko Hayashi, Toshihiro Handa e Tomoharu Oka. "A large area CO(J=2−1) mapping of the Orion giant molecular clouds". In Back to the Galaxy. AIP, 1992. http://dx.doi.org/10.1063/1.43995.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

"LANMAN 2004 - Back cover". In The 13th IEEE Workshop on Local and Metropolitan Area Networks, 2004. LANMAN 2004. IEEE, 2004. http://dx.doi.org/10.1109/lanman.2004.1338444.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Musienko, Sergiy, e Maksym Rumiantsev. "CONDITION OF RECREATIONAL AND HEALTH-IMPROVING FORESTS IN LEFT-BANK UKRAINE". In Priority Development Fields of the European Research Area. Publishing House “Baltija Publishing”, 2020. http://dx.doi.org/10.30525/978-9934-588-84-6-17.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Rapporti di organizzazioni sul tema "Bark area":

Samman, Safiya, e Jesse Logan. Assessment and response to bark beetle outbreaks in the Rocky Mountain area. Ft. Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, 2000. http://dx.doi.org/10.2737/rmrs-gtr-62.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Dunn, C. E., D. Smith e D. E. Kerr. Biogeochemical survey of the Drybones Bay area, Northwest Territories (NTS 85I/4) using outer bark of black spruce. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2001. http://dx.doi.org/10.4095/212641.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Dunn, C. E., e N. L. Hastings. Biogeochemical survey of the Fraser Lake area using outer bark of Lodgepole pine (NTS 93K02/03): base metals, gold, and pathfinder elements, central British Columbia. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1999. http://dx.doi.org/10.4095/210374.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Dunn, C. E., e N. L. Hastings. Biogeochemical survey of the Fraser Lake area using outer bark of Lodgepole pine (NTS 93K02/03): alkali metals, alkaline earths, manganese and aluminum, central British Columbia. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1999. http://dx.doi.org/10.4095/210376.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Dunn, C. E., e N. L. Hastings. Biogeochemical survey of the Fraser Lake area using outer bark of Lodgepole pine (NTS 93K02/03): mafic suite of elements with thorium and lanthanum, central British Columbia. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1999. http://dx.doi.org/10.4095/210375.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Dunn, C. E., e N. L. Hastings. Biogeochemical survey of the Fraser Lake area using outer bark of Lodgepole pine (NTS 93K/2 and 93K/3 - north-central British Columbia): digital data listings and summary notes. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1999. http://dx.doi.org/10.4095/210377.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Dunn, C. E., e N. L. Hastings. Biogeochemical survey of the Ootsa-François lakes area using outer bark of Lodgepole Pine (NTS 93F/13, 14, and part of 12), base metals and pathfinder elements, north central British Columbia. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1998. http://dx.doi.org/10.4095/209913.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Dunn, C. E., e N. L. Hastings. Biogeochemical survey of the Ootsa-François lakes area using outer bark of Lodgepole Pine (NTS 93F/13, 14, and part of 12), alkaline earths, manganese and aluminum, north central British Columbia. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1998. http://dx.doi.org/10.4095/209915.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Dunn, C. E., e N. L. Hastings. Biogeochemical survey of the Ootsa-François lakes area using outer bark of Lodgepole Pine (NTS 93F13/14 and part of 12 - north central British Columbia): digital data listings and summary notes. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1998. http://dx.doi.org/10.4095/209916.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri

Dunn, C. E., e N. L. Hastings. Biogeochemical survey of the Ootsa-François lakes area using outer bark of Lodgepole Pine (NTS 93F/13, 14, and part of 12), mafic suite of elements with thorium and lanthanum, north central British Columbia. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1998. http://dx.doi.org/10.4095/209914.

Testo completo

Gli stili APA, Harvard, Vancouver, ISO e altri