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Hasan Arman and Safwan Paramban
The ultrasonic pulse velocity test is a widely used, inexpensive, nondestructive, and modest test to define the dynamic properties of rocks in various geotechnical and mining engineering applications as well as in gas and oil explorations under various e...
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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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Christoph Gollob, Tim Ritter, Sonja Vospernik, Clemens Wassermann and Arne Nothdurft
In this study, height?diameter relations were modeled using two different mixed model types for imputation of missing heights from longitudinal data. Model Type A had a hierarchical structure of sample plot-specific and measurement occasion-specific rand...
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Jiuyuan Zhang, Jingshan Lu, Qiuyan Zhang, Qimo Qi, Gangjun Zheng, Fadi Chen, Sumei Chen, Fei Zhang, Weimin Fang and Zhiyong Guan
Crown diameter is one of the crucial indicators for evaluating the adaptability, growth quality, and ornamental value of garden chrysanthemums. To accurately obtain crown diameter, this study employed an unmanned aerial vehicle (UAV) equipped with a RGB ...
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Ram P. Sharma, Zdenek Vacek, Stanislav Vacek and Milo? Kucera
Height-to-diameter at breast height (DBH) ratio (HDR) is an important tree and stand stability measure. Several factors such as stand dynamics, natural and anthropogenic disturbances, and silvicultural tending significantly affect HDR, and, therefore, in...
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Zhe Xiang, Nong Zhang, Zhengzheng Xie and Chenghao Zhang
To study the damage and destruction behavior of small coal pillars in coal mine roadway driving along gobs under long-term in-situ stress and multiple engineering disturbances, an unconfined compression experiment under a discontinuous cyclic load was de...
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Harry Patmadjaja,Suhartono Irawan
Pág. pp. 24 - 29
Cement Treated Base is a structural layer using Portland Cement as a bonding agent.Until now CTB is not commonly used in Indonesia, so the production method does not develop and the testing procedures is not standardized.AASHTO 1986 specifies a testing p...
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Shangzhi Li, Bo Sun, Zhijin Shang, Biao Li, Ruyue Cui, Hongpeng Wu and Lei Dong
A fast and highly sensitive polymer nano-mechanical thermal analysis method for determining the melting temperature (Tm) of polymer microwires was proposed. In this method, a small-size, low-cost quartz tuning fork was used as a piezoelectric transducer ...
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Gerson Andesron de Carvalho Lopes, Henrique Duarte da Fonseca Filho
Pág. 403 - 409
Dissipated energy measurements between a tip of an AFM and a sample have been used to analyze variations in mechanical and tribological properties of materials, using tapping mode AFM to generate topography and phase contrast images. Furthermore it's pos...
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Nikolay Fedorov, Pavel Shirokikh, Svetlana Zhigunova, Elvira Baisheva, Ilshat Tuktamyshev, Ilnur Bikbaev, Mikhail Komissarov, Gleb Zaitsev, Raphak Giniyatullin, Ilyusya Gabbasova, Ruslan Urazgildin, Aleksey Kulagin, Ruslan Suleymanov, Dilara Gabbasova, Albert Muldashev and Shamil Maksyutov
Due to the global increase in CO2 in the atmosphere, studies focusing on the carbon balance in forest ecosystems are currently particularly relevant. Abandoned agricultural lands could provide an important contribution to carbon sequestration in many par...
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Andre Novan,Ermiyati Ermiyati,Yenita Morena,Ella Silvana Chebelita
Pág. 1 - 11
MasterGlenium ACE® 8595 is a Type F chemical that serves to reduce the amount of mixing water, improve workability and improve concrete quality. The purpose of this study was to find out the effect of adding MasterGlenium ACE® 8595 with a reduction in wa...
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Andre Novan,Ermiyati Ermiyati,Yenita Morena,Ella Silvana Chebelita
Pág. 1 - 11
MasterGlenium ACE® 8595 is a Type F chemical that serves to reduce the amount of mixing water, improve workability and improve concrete quality. The purpose of this study was to find out the effect of adding MasterGlenium ACE® 8595 with a reduction in wa...
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Oleksiy Larin,Oleksandr Morozov,Sergii Nazarenko,Gennadiy Chernobay,Andrii Kalynovskyi,Roman Kovalenko,Svitlana Fedulova,Pavlo Pustovoitov
Pág. 63 - 70
Experimental research into determining the mechanical properties (elastic and dissipative) of the pressure fire hose of type «T» with an inner diameter of 66 mm under conditions of static load were presented. The experiment was conducted on the experimen...
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Ville Luoma, Ninni Saarinen, Michael A. Wulder, Joanne C. White, Mikko Vastaranta, Markus Holopainen and Juha Hyyppä
Forest resource information has a hierarchical structure: individual tree attributes are summed at the plot level and then in turn, plot-level estimates are used to derive stand or large-area estimates of forest resources. Due to this hierarchy, it is im...
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Yu Wang, Changhong Li, Xiaoming Wei and Zhiqiang Hou
A series of experimental flow tests for artificial block-in-matrix-soils (bimsoils) samples with various slenderness ratios were performed to study the Non-Darcy groundwater flow characteristics. The variations of seepage velocity, permeability coefficie...
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Yu Wang, Changhong Li, Xiaoming Wei, Zhiqiang Hou
Pág. 1 - 17
A series of experimental flow tests for artificial block-in-matrix-soils (bimsoils) samples with various slenderness ratios were performed to study the Non-Darcy groundwater flow characteristics. The variations of seepage velocity, permeability coefficie...
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S.M.C.U.P. Subasinghe,G.B. Munasinghe
Forests in Sri Lanka contribute to the mitigation of global climate change through sequestrating a net amount of carbon dioxide and also maintaining carbon stocks as forest biomass. This study was conducted using an empirical method to understand the bio...
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Slavko N. Ðuric, ?eljko Lj. Kaluderovic, Tijana R. Kosanic, Mirjana B. Ceranic, Milan M. Milotic, Sa?a D. Brankov
Pág. 141 - 147
This paper describes an experimental investigation of pyrolysis process of agricultural biomass mixture, without the addition of inert gas. The mixture consists of corn stalk, wheat straw, soy straw and oat straw with equal mass fractions. During the exp...
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Xiao Zhang, Zhi Ding, Shao-Heng He, Gui-Di Zhang, Miao-Miao Sun and Tang-Dai Xia
Based on the lateral consolidation compression experiment of remolded soil simulating the effects of pile driving and soil squeezing, in this paper, the microstructures of soil with different degrees of lateral consolidation were investigated by a scanni...
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Jozef Jurko, Martin Mi?kiv-Pavlík, Vratislav Hladký, Peter Lazorík, Peter Michalík and Igor Petru?ka
One of the most important operations in the technological production process is the inspection of the manufactured product. The gradual wear of the tool affects the achievement of the required quality of the functional surfaces. In this research, we pres...
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