Mekonen samuel (38 risultati)

Condizione: New.

Condizione: New.

Taschenbuch. Condizione: Neu. Finishing Material and Physical Properties of Wood | Effect of Finishing Material (wood finishes) on Some Selected Physical Properties of C. lusitanica Grown at Arsi Forest | Samuel Mekonen Wendmagegnehu | Taschenbuch | 64 S. | Englisch | 2018 | LAP LAMBERT Academic Publishing | EAN 9786139862665 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.…

Paperback. Condizione: Brand New. 72 pages. 8.66x5.91x0.17 inches. In Stock.

Taschenbuch. Condizione: Neu. Initial Spacing and Physical Properties of Wood | The Effect of Initial Spacing on Saw Log Quality and Selected Physical Properties of Juniperus procera | Samuel Mekonen | Taschenbuch | 72 S. | Englisch | 2011 | LAP LAMBERT Academic Publishing | EAN 9783846549506 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu.…

Condizione: New.

Taschenbuch. Condizione: Neu. Matériaux de finition et propriétés physiques du bois | Effet des matériaux de finition (finitions du bois) sur certaines propriétés physiques de C. lusitanica cultivé dans la forêt d'Arsi | Samuel Mekonen Wendmagegnehu | Taschenbuch | Französisch | 2023 | Editions Notre Savoir | EAN 9786206194095 | Verantwortliche Person für die EU: SIA OmniScriptum Publishing, Brivibas Gatve 197, 1039 RIGA, LETTLAND, customerservice[at]vdm-vsg[dot]de | Anbieter: preigu.…

Condizione: New.

Condizione: New.

Taschenbuch. Condizione: Neu. Materiale di finitura e proprietà fisiche del legno | Effetto del materiale di finitura (finiture del legno) su alcune proprietà fisiche selezionate di C. lusitanica coltivata nella foresta di Arsi | Samuel Mekonen Wendmagegnehu | Taschenbuch | Italienisch | 2023 | Edizioni Sapienza | EAN 9786206194101 | Verantwortliche Person für die EU: SIA OmniScriptum Publishing, Brivibas Gatve 197, 1039 RIGA, LETTLAND, customerservice[at]vdm-vsg[dot]de | Anbieter: preigu.…

Taschenbuch. Condizione: Neu. Material de acabamento e propriedades físicas da madeira | Efeito do material de acabamento (acabamentos de madeira) em algumas propriedades físicas seleccionadas de C. lusitanica cultivada na floresta de Arsi | Samuel Mekonen Wendmagegnehu | Taschenbuch | Portugiesisch | 2023 | Edições Nosso Conhecimento | EAN 9786206194118 | Verantwortliche Person für die EU: SIA OmniScriptum Publishing, Brivibas Gatve 197, 1039 RIGA, LETTLAND, customerservice[at]vdm-vsg[dot]de | Anbieter: preigu.…

Taschenbuch. Condizione: Neu. Endbearbeitungsmaterial und physikalische Eigenschaften von Holz | Auswirkung des Veredelungsmaterials (Holzbehandlungen) auf einige ausgewählte physikalische Eigenschaften von C. lusitanica aus dem Arsi-Wald | Samuel Mekonen Wendmagegnehu | Taschenbuch | 56 S. | Deutsch | 2023 | Verlag Unser Wissen | EAN 9786206194019 | Verantwortliche Person für die EU: SIA OmniScriptum Publishing, Brivibas Gatve 197, 1039 RIGA, LETTLAND, customerservice[at]vdm-vsg[dot]de | Anbieter: preigu.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Finishing technology is among the factors that play a great role in determining the durability and visual value of the end product. In this study, the effect of wood finishing materials was studied on the above listed physical properties of C.lusitanica. A total of 10 trees were felled and a replicate of green sample discs having a dimension of about 3cm thick was taken from the butt, a middle and top portion of the tree, to investigate moisture and density variation along the tree height. A total of 90 specimens from 10 trees having a dimension of about [2x2cm (cross-section) and 3cm long] were prepared from three trees were prepared for shrinkage, WAA, and ASE analysis. The Statistical Analysis Software (SAS) was used to analyze the data using analysis of variance (ANOVA) procedure and a least significant difference (LSD) method was used for mean comparison at P 0.05. D showed an increasing trend as the tree height increases, unlikely both tangential and radial shrinkage decreases as the tree height increases. WAA showed a less value in varnish treatments and ASE of the species was revealed a significant difference along the tree height and different finishing materials. 64 pp. Englisch.…

Condizione: New. Print on Demand.

Condizione: New. PRINT ON DEMAND.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -La tecnología de acabado es uno de los factores que más influyen en la durabilidad y el valor visual del producto final. En este estudio, se estudió el efecto de los materiales de acabado de la madera sobre las propiedades físicas de C.lusitanica mencionadas anteriormente. Se talaron un total de 10 árboles y se tomó una réplica de discos de muestras verdes con una dimensión de unos 3 cm de grosor de la culata, una parte media y la parte superior del árbol, para investigar la variación de humedad y densidad a lo largo de la altura del árbol. Se preparó un total de 90 especímenes de 10 árboles con una dimensión de aproximadamente [2x2cm (sección transversal) y 3cm de largo] de tres árboles para los análisis de contracción, WAA y ASE. Se utilizó el programa informático de análisis estadístico (SAS) para analizar los datos mediante el procedimiento de análisis de la varianza (ANOVA) y el método de la diferencia mínima significativa (LSD) para la comparación de medias a P ¿ 0,05. D mostró una tendencia creciente a medida que aumentaba la altura del árbol, siendo poco probable que tanto la contracción tangencial como la radial disminuyeran a medida que aumentaba la altura del árbol. WAA mostró un valor menor en los tratamientos con barniz y ASE de la especie se reveló una diferencia significativa a lo largo de la altura del árbol y los diferentes materiales de acabado. 56 pp. Spanisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Basic wood density and initial moisture content are the two important wood properties for solid timber applications, especially for structural timber is strongly related to wood density. Density of Junipures excelsa is highly variable and poorly understood. In this study the effect of initial spacing on saw log quality and physical properties of Juniperus excelsa grown at Wondo Genet were investigated. A total of 27 trees from three replicates (three per treatment on each replicate) were felled and discs were cut for this study. A replicates of green samples discs having a dimension of about 3cm thick were taken from the butt, middle and top portion of the tree, to investigate moisture and density variation along the tree height. A total of 270 specimens (i.e. 90 specimens from each spacing, 5 from one portion of sapwood and heartwood) having a dimension of about [2 x 2 cm (cross section) and 3 cm long] were prepared from three trees for shrinkage analysis. A lumber having a dimension 2,000 x 100 x 25 mm were processed for knot number and size determination. The results indicated that these exists a significance difference in basic wood density, tapering, and average knot size. 72 pp. Englisch.…

Taschenbuch. Condizione: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Finishing technology is among the factors that play a great role in determining the durability and visual value of the end product. In this study, the effect of wood finishing materials was studied on the above listed physical properties of C.lusitanica. A total of 10 trees were felled and a replicate of green sample discs having a dimension of about 3cm thick was taken from the butt, a middle and top portion of the tree, to investigate moisture and density variation along the tree height. A total of 90 specimens from 10 trees having a dimension of about [2x2cm (cross-section) and 3cm long] were prepared from three trees were prepared for shrinkage, WAA, and ASE analysis. The Statistical Analysis Software (SAS) was used to analyze the data using analysis of variance (ANOVA) procedure and a least significant difference (LSD) method was used for mean comparison at P 0.05. D showed an increasing trend as the tree height increases, unlikely both tangential and radial shrinkage decreases as the tree height increases. WAA showed a less value in varnish treatments and ASE of the species was revealed a significant difference along the tree height and different finishing materials.…

Condizione: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Wendmagegnehu Samuel MekonenSamuel Mekonen Wendmagegnehu was born in Arsi - Sire Ethiopia on Oct 13, 1985. He has obtained his Master degree in Production Forestry from Hawassa University - Wondo genet college of Forestry and Natural.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -La technologie de finition fait partie des facteurs qui jouent un rôle important dans la détermination de la durabilité et de la valeur visuelle du produit final. Dans cette étude, l'effet des matériaux de finition du bois a été étudié sur les propriétés physiques susmentionnées de C.lusitanica. Au total, 10 arbres ont été abattus et des échantillons de disques verts d'une dimension d'environ 3 cm d'épaisseur ont été prélevés au niveau du pied, au milieu et au sommet de l'arbre, afin d'étudier les variations d'humidité et de densité le long de la hauteur de l'arbre. Au total, 90 spécimens de 10 arbres d'une dimension d'environ [2x2cm (section transversale) et 3cm de long] ont été préparés à partir de trois arbres pour l'analyse du retrait, de la WAA et de l'ASE. Le logiciel d'analyse statistique (SAS) a été utilisé pour analyser les données à l'aide de la procédure d'analyse de la variance (ANOVA) et la méthode de la plus petite différence significative (LSD) a été utilisée pour la comparaison des moyennes à P 0,05. D a montré une tendance à l'augmentation à mesure que la hauteur de l'arbre augmente, peu probable que le retrait tangentiel et radial diminue à mesure que la hauteur de l'arbre augmente. WAA a montré une valeur inférieure dans les traitements de vernis et ASE de l'espèce a révélé une différence significative le long de la hauteur de l'arbre et des différents matériaux de finition. 60 pp. Französisch.…

Taschenbuch. Condizione: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Basic wood density and initial moisture content are the two important wood properties for solid timber applications, especially for structural timber is strongly related to wood density. Density of Junipures excelsa is highly variable and poorly understood. In this study the effect of initial spacing on saw log quality and physical properties of Juniperus excelsa grown at Wondo Genet were investigated. A total of 27 trees from three replicates (three per treatment on each replicate) were felled and discs were cut for this study. A replicates of green samples discs having a dimension of about 3cm thick were taken from the butt, middle and top portion of the tree, to investigate moisture and density variation along the tree height. A total of 270 specimens (i.e. 90 specimens from each spacing, 5 from one portion of sapwood and heartwood) having a dimension of about [2 x 2 cm (cross section) and 3 cm long] were prepared from three trees for shrinkage analysis. A lumber having a dimension 2,000 x 100 x 25 mm were processed for knot number and size determination. The results indicated that these exists a significance difference in basic wood density, tapering, and average knot size.…

Condizione: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Mekonen SamuelMr.Samuel Mekonen was born in Arsi-Sire, Ethiopia in October 10, 1986. He has obtained his MSc degree in Forestry with specialization of Production Forestry from Wondo Genet College of Forestry and Natural Resources in .…

Taschenbuch. Condizione: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - La tecnología de acabado es uno de los factores que más influyen en la durabilidad y el valor visual del producto final. En este estudio, se estudió el efecto de los materiales de acabado de la madera sobre las propiedades físicas de C.lusitanica mencionadas anteriormente. Se talaron un total de 10 árboles y se tomó una réplica de discos de muestras verdes con una dimensión de unos 3 cm de grosor de la culata, una parte media y la parte superior del árbol, para investigar la variación de humedad y densidad a lo largo de la altura del árbol. Se preparó un total de 90 especímenes de 10 árboles con una dimensión de aproximadamente [2x2cm (sección transversal) y 3cm de largo] de tres árboles para los análisis de contracción, WAA y ASE. Se utilizó el programa informático de análisis estadístico (SAS) para analizar los datos mediante el procedimiento de análisis de la varianza (ANOVA) y el método de la diferencia mínima significativa (LSD) para la comparación de medias a P ¿ 0,05. D mostró una tendencia creciente a medida que aumentaba la altura del árbol, siendo poco probable que tanto la contracción tangencial como la radial disminuyeran a medida que aumentaba la altura del árbol. WAA mostró un valor menor en los tratamientos con barniz y ASE de la especie se reveló una diferencia significativa a lo largo de la altura del árbol y los diferentes materiales de acabado.…

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Finishing technology is among the factors that play a great role in determining the durability and visual value of the end product. In this study, the effect of wood finishing materials was studied on the above listed physical properties of C.lusitanica. A total of 10 trees were felled and a replicate of green sample discs having a dimension of about 3cm thick was taken from the butt, a middle and top portion of the tree, to investigate moisture and density variation along the tree height. A total of 90 specimens from 10 trees having a dimension of about [2x2cm (cross-section) and 3cm long] were prepared from three trees were prepared for shrinkage, WAA, and ASE analysis. The Statistical Analysis Software (SAS) was used to analyze the data using analysis of variance (ANOVA) procedure and a least significant difference (LSD) method was used for mean comparison at P ¿ 0.05. D showed an increasing trend as the tree height increases, unlikely both tangential and radial shrinkage decreases as the tree height increases. WAA showed a less value in varnish treatments and ASE of the species was revealed a significant difference along the tree height and different finishing materials.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 64 pp. Englisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Basic wood density and initial moisture content are the two important wood properties for solid timber applications, especially for structural timber is strongly related to wood density. Density of Junipures excelsa is highly variable and poorly understood. In this study the effect of initial spacing on saw log quality and physical properties of Juniperus excelsa grown at Wondo Genet were investigated. A total of 27 trees from three replicates (three per treatment on each replicate) were felled and discs were cut for this study. A replicates of green samples discs having a dimension of about 3cm thick were taken from the butt, middle and top portion of the tree, to investigate moisture and density variation along the tree height. A total of 270 specimens (i.e. 90 specimens from each spacing, 5 from one portion of sapwood and heartwood) having a dimension of about [2 x 2 cm (cross section) and 3 cm long] were prepared from three trees for shrinkage analysis. A lumber having a dimension 2,000 x 100 x 25 mm were processed for knot number and size determination. The results indicated that these exists a significance difference in basic wood density, tapering, and average knot size.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 72 pp. Englisch.…

Taschenbuch. Condizione: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - La technologie de finition fait partie des facteurs qui jouent un rôle important dans la détermination de la durabilité et de la valeur visuelle du produit final. Dans cette étude, l'effet des matériaux de finition du bois a été étudié sur les propriétés physiques susmentionnées de C.lusitanica. Au total, 10 arbres ont été abattus et des échantillons de disques verts d'une dimension d'environ 3 cm d'épaisseur ont été prélevés au niveau du pied, au milieu et au sommet de l'arbre, afin d'étudier les variations d'humidité et de densité le long de la hauteur de l'arbre. Au total, 90 spécimens de 10 arbres d'une dimension d'environ [2x2cm (section transversale) et 3cm de long] ont été préparés à partir de trois arbres pour l'analyse du retrait, de la WAA et de l'ASE. Le logiciel d'analyse statistique (SAS) a été utilisé pour analyser les données à l'aide de la procédure d'analyse de la variance (ANOVA) et la méthode de la plus petite différence significative (LSD) a été utilisée pour la comparaison des moyennes à P 0,05. D a montré une tendance à l'augmentation à mesure que la hauteur de l'arbre augmente, peu probable que le retrait tangentiel et radial diminue à mesure que la hauteur de l'arbre augmente. WAA a montré une valeur inférieure dans les traitements de vernis et ASE de l'espèce a révélé une différence significative le long de la hauteur de l'arbre et des différents matériaux de finition.…

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -La tecnología de acabado es uno de los factores que más influyen en la durabilidad y el valor visual del producto final. En este estudio, se estudió el efecto de los materiales de acabado de la madera sobre las propiedades físicas de C.lusitanica mencionadas anteriormente. Se talaron un total de 10 árboles y se tomó una réplica de discos de muestras verdes con una dimensión de unos 3 cm de grosor de la culata, una parte media y la parte superior del árbol, para investigar la variación de humedad y densidad a lo largo de la altura del árbol. Se preparó un total de 90 especímenes de 10 árboles con una dimensión de aproximadamente [2x2cm (sección transversal) y 3cm de largo] de tres árboles para los análisis de contracción, WAA y ASE. Se utilizó el programa informático de análisis estadístico (SAS) para analizar los datos mediante el procedimiento de análisis de la varianza (ANOVA) y el método de la diferencia mínima significativa (LSD) para la comparación de medias a P ¿ 0,05. D mostró una tendencia creciente a medida que aumentaba la altura del árbol, siendo poco probable que tanto la contracción tangencial como la radial disminuyeran a medida que aumentaba la altura del árbol. WAA mostró un valor menor en los tratamientos con barniz y ASE de la especie se reveló una diferencia significativa a lo largo de la altura del árbol y los diferentes materiales de acabado.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 56 pp. Spanisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Die Veredelungstechnologie gehört zu den Faktoren, die eine große Rolle bei der Bestimmung der Haltbarkeit und des optischen Wertes des Endprodukts spielen. In dieser Studie wurde der Einfluss von Holzveredelungsmaterialien auf die oben genannten physikalischen Eigenschaften von C.lusitanica untersucht. Insgesamt wurden 10 Bäume gefällt und eine Wiederholung von grünen, etwa 3 cm dicken Probescheiben aus dem unteren, mittleren und oberen Teil des Baumes entnommen, um die Schwankungen von Feuchtigkeit und Dichte entlang der Baumhöhe zu untersuchen. Insgesamt wurden 90 Proben von 10 Bäumen mit einer Abmessung von etwa [2x2cm (Querschnitt) und 3cm Länge] von drei Bäumen für die Schwindungs-, WAA- und ASE-Analyse vorbereitet. Die Daten wurden mit der Statistical Analysis Software (SAS) mittels Varianzanalyse (ANOVA) analysiert, und für den Mittelwertvergleich wurde die Methode der geringsten signifikanten Differenz (LSD) bei P 0,05 verwendet. D zeigte mit zunehmender Baumhöhe eine steigende Tendenz, während sowohl die tangentiale als auch die radiale Schrumpfung mit zunehmender Baumhöhe unwahrscheinlich abnimmt. WAA zeigte einen geringeren Wert bei den Lackbehandlungen und ASE der Arten zeigte einen signifikanten Unterschied entlang der Baumhöhe und verschiedener Veredelungsmaterialien. 56 pp. Deutsch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -A tecnologia de acabamento é um dos factores que desempenham um papel importante na determinação da durabilidade e do valor visual do produto final. Neste estudo, foi estudado o efeito dos materiais de acabamento da madeira nas propriedades físicas acima referidas da C.lusitanica. Um total de 10 árvores foi abatido e uma réplica de discos de amostras verdes com uma dimensão de cerca de 3 cm de espessura foi retirada da extremidade, do meio e do topo da árvore, para investigar a variação da humidade e da densidade ao longo da altura da árvore. Um total de 90 amostras de 10 árvores com uma dimensão de cerca de [2x2cm (secção transversal) e 3cm de comprimento] foram preparadas a partir de três árvores para análise de retração, WAA e ASE. O software de análise estatística (SAS) foi utilizado para analisar os dados através do procedimento de análise de variância (ANOVA) e o método da diferença menos significativa (LSD) foi utilizado para a comparação de médias com P ¿ 0,05. O D apresentou uma tendência crescente à medida que a altura da árvore aumenta, sendo improvável que tanto a retração tangencial como a radial diminuam à medida que a altura da árvore aumenta. A AAA apresentou um valor inferior nos tratamentos com verniz e a ASE da espécie revelou uma diferença significativa ao longo da altura da árvore e dos diferentes materiais de acabamento. 56 pp. Portugiesisch.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -La tecnologia di finitura è tra i fattori che giocano un ruolo importante nel determinare la durabilità e il valore visivo del prodotto finale. In questo studio è stato studiato l'effetto dei materiali di finitura del legno sulle proprietà fisiche sopra elencate di C.lusitanica. Un totale di 10 alberi è stato abbattuto e una replica di dischi campione verdi di circa 3 cm di spessore è stata prelevata dal tronco, dalla porzione centrale e da quella superiore dell'albero, per studiare le variazioni di umidità e densità lungo l'altezza dell'albero. Per l'analisi del ritiro, della WAA e dell'ASE sono stati preparati in totale 90 campioni da 10 alberi di dimensioni pari a circa [2x2 cm (sezione trasversale) e 3 cm di lunghezza]. Per analizzare i dati è stato utilizzato il software di analisi statistica (SAS) con la procedura dell'analisi della varianza (ANOVA) e il metodo della differenza minima significativa (LSD) per il confronto delle medie a P ¿ 0,05. La D ha mostrato una tendenza all'aumento con l'aumentare dell'albero. D ha mostrato un andamento crescente all'aumentare dell'altezza dell'albero, mentre è improbabile che sia il ritiro tangenziale che quello radiale diminuiscano all'aumentare dell'altezza dell'albero. La WAA ha mostrato un valore minore nei trattamenti con vernice e l'ASE della specie ha rivelato una differenza significativa in base all'altezza dell'albero e ai diversi materiali di finitura. 56 pp. Italienisch.…