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Alberto Rojo-Alboreca,Juan D. García-Villabrille,José J. Corral-Rivas,Ricardo Alía,Gregorio Montero
Pág. e03S
Aim of study: To propose a new approach to defining rotation ages on the basis of productive and technological aspects and to present an example of application of the methodology to natural Pinus sylvestris stands in relation to silvicultural treatment (...
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F.N Ogana,J.H. Dau
The distribution of crown diameter is important for assessing crown social class, monitoring forest health and wildlife management. However, the direct measurement of crown diameter is relative difficult, and as such, it is often predicted from diameter ...
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Jussi Peuhkurinen, Timo Tokola, Kseniia Plevak, Sanna Sirparanta, Alexander Kedrov and Sergey Pyankov
A tree list is a list of trees in the area of interest containing, for example, the species, diameter, height, and stem volume of each tree. Tree lists can be used to derive various characteristics of the growing stock, and are therefore versatile and in...
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Jose Javier Gorgoso-Varela,Alberto Rojo-Alboreca
Pág. 500 - 505
Aim of study: In this study we compared the accuracy of the Weibull and the Johnson?s SB functions for describing diameter distributions in pedunculate oak (Quercus robur L.) and birch (Betula pubescens Ehrh.) stands.Area of study: Galicia (Northwest Spa...
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Qinglong Zhang, Yu Liang and Hong S. He
Wall-to-wall tree-lists information (lists of species and diameter for every tree) at a regional scale is required for managers to assess forest sustainability and design effective forest management strategies. Currently, the k-nearest neighbors (kNN) me...
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Samuel Royer-Tardif, Sylvain Delagrange, Philippe Nolet and David Rivest
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A. Calzado,E. Torres
Pág. 15 - 24
Aim of study: The aim of this work was to model diameter distributions of Quercus suber stands. The ultimate goal was to construct models enabling the development of more affordable forest inventory methods. This is the first study of this type on cork o...
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J. J. Gorgoso,A. Rojo,A. Cámara-Obregón,U. Diéguez-Aranda
Pág. 446 - 459
The purpose of this study was to compare the accuracy of the Weibull, Johnson?s SB and beta distributions, fitted with some of the most usual methods and with different fixed values for the location parameters, for describing diameter distributions in ev...
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Míriam Piqué-Nicolau,Miren del Río,Rafael Calama,Gregorio Montero
Pág. 3 - 20
A yield model was developed to simulate silviculture alternatives for Pinus pinea L. in north-east Spain (Catalonia). The model uses several functions to estimate the main silvicultural parameters at stand level and a disaggregation system to predict dia...
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Victor A. Snyder and Miguel A. Vázquez
A phenomenon causing instability of soil structure and associated hydraulic properties in recently tilled soils is aggregate fragmentation induced by wetting and drying cycles. We analyzed data from three experiments in Puerto Rico, the UK and China meas...
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Lianfei Kuang, Lipeng Sun, Dongxu Yu, Yijiang Wang, Zhaoxiang Chu and Jo Darkwa
Efficient fracturing is the key issue for the exploitation of geothermal energy in a Hot Dry Rock reservoir. By using the laser irradiation cracking method, this study investigates the changes in uniaxial compressive strength, ultrasonic characteristics ...
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Olha Aleksieieva, Liliia Dereviankina, Paul Breuninger, Mustafa Bozoglu, Pavlo Tretiakov, Andrii Toporov and Sergiy Antonyuk
The cold gas-dynamic spray (CGDS) technique is utilized for repairing processes of a large number of metallic components in mechanical and process engineering, such as bridges or vehicles. Fine particles impacting on the component surface can be severely...
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Sium Gebremariam, Siwei Li and Mengsteab Weldegaber
The correlation between aerosol particulate matter with aerodynamic diameter =2.5 µ m (PM2.5) and cloud base height (CBH) of low clouds (CBH lower than 1.5 km a.g.l.) at Baltimore and New York, United States, for an 8 year period (2007?2014) was ...
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Jessica M. Kleiss, Erin A. Riley, Charles N. Long, Laura D. Riihimaki, Larry K. Berg, Victor R. Morris and Evgueni Kassianov
We develop a new approach that resolves cloud area distributions of single-layer shallow cumuli from ground-based observations. Our simple and computationally inexpensive approach uses images obtained from a Total Sky Imager (TSI) and complementary infor...
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Eric R. Labelle, Gaetan Pelletier and Michel Soucy
Variations in species composition, diameter and height distributions, and quality make the management of hardwood-dominated stands difficult, particularly when considering mechanized forest operations. This study aimed to develop and field test a tool de...
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Jose Javier Gorgoso-Varela,Juan Daniel García-Villabrille,Alberto Rojo-Alboreca,Klaus von Gadow,Juan Gabriel Álvarez-González
Pág. eSC07
Aim of study: In this study we compare the accuracy of three bivariate distributions: Johnson?s SBB, Weibull-2P and LL-2P functions for characterizing the joint distribution of tree diameters and heights.Area of study: North-West of Spain.Material and me...
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Hakam, A.
Pág. 64 - 68
The Padang earthquake of M7.6 on 30 September 2009 (30S?09) caused damage to buildings, houses, public water facilities, and road ways. Several buildings were damaged due to liquefaction. This paper describes the liquefaction potential in Padang based on...
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Wenfeng Guan, Ju Chen, Lijian Chen, Jiaolong Cao and Hongjun Fan
Adopting proton exchange membrane fuel cells fuelled by hydrogen presents a promising solution for the shipping industry?s deep decarbonisation. However, the potential safety risks associated with hydrogen leakage pose a significant challenge to the deve...
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Ming Li, Xiawei Yu, Hui Kang, Zhouqing Xie and Pengfei Zhang
During the third China Arctic Research Expedition (July?September 2008), size-resolved measurements of bacteria-containing particles (BCPs) in the marine boundary layer (MBL) air were conducted during a cruise through the East China Sea, the Yellow Sea, ...
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Penghao Zhao, Jianhua Liu, Hao Gong and Fenqi Xue
Loosening failure of bolted joints often occurs in a vibration environment. This may induce the separation of clamped components and even result in catastrophic consequences in certain situations. Various anti-loosening bolted connections have been devel...
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