نتایج جستجو برای: forestry operations
تعداد نتایج: 145536 فیلتر نتایج به سال:
The harvester has been widely used in forestry operations. However the existence of obstacles in forests, such as stones, animals, human and clustered trees, may leads to safety accident and decreases the operating efficiency of the harvester. Therefore it becomes vital to show the obstacles accurately to provide guidance for the harvester. In this paper, an improved image fusion algorithm base...
Operations research is becoming increasingly prevalent in the natural resource sector, specifically, in agriculture, fisheries, forestry and mining. While there are similar research questions in these areas, e.g., how to harvest and/or extract the resources and how to account for environmental impacts, there are also differences, e.g., the length of time associated with a growth and harvesting ...
Oak wilt, caused by Ceratocystzsfagacearum (T.W. Bretz) J. Hunt, is probably the most destructive disease of oak trees (Quercus species) in the United States, and is currently causing high mortality at epiphytotic proportions in central Texas. The serious potential for damage prompted an increase in federal funding within the past fifteen years for new oak wilt research. New research developmen...
Heavy construction equipment is routinely used on construction projects that entail earthmoving operations. Owning and operating these machines may comprise a significant portion of the project costs. An important element of the owning costs is the residual value. However, the nature of the residual value of construction equipment is largely unknown. Ongoing research at Virginia Tech examines t...
Jiankun Liang 1,2,†, Zhigang Wu 3,†, Hong Lei 1,*, Xuedong Xi 1, Taohong Li 1 ID and Guanben Du 1,* 1 Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, Southwest Forestry University, Kunming 650224, China; [email protected] (J.L.); [email protected] (X.X.); [email protected] (T.L.) 2 Material Science and Technology College, Beijing Forestry University, Beijing 100083...
Proposing a suitable soil quality index for natural, secondary and rehabilitated tropical forests in Malaysia A. Arifin*, D. S. Karam, J. Shamshuddin, N. M. Majid, O. Radziah, A. H. Hazandy and I. Zahari Department of Forest Production, Faculty of Forestry, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia. Laboratory of Sustainable Bioresource Management, Institute of Tropical F...
In order to deal with the problem of low categorization accuracy of minority class of the uneven forestry information text classification algorithm, this paper puts forward the uneven forestry information text classification algorithm based on weighted Gauss-Newton neural network, on the basis of weighted Gauss-Newton algorithm, the algorithm is proved via singular value decomposition principle...
Contact Information Developing an online database of descriptions of ectomycorrhizae 1. Research Scientist, Canadian Forest Service, Natural Resources Canada, Pacific Forestry Centre, 506 Burnside Road West, Victoria, BC, V8Z 1M5. Email: [email protected] 2. Biologist, Canadian Forest Service, Natural Resources Canada, Pacific Forestry Centre, 506 Burnside Road West, Victoria, BC, V8Z 1...
Dr. Muhittin Yilmaz received the B.S. degree in Electrical and Electronics Engineering from Gazi University, Ankara, Turkey, and the M.Sc. and Ph.D. degrees in Electrical Engineering from Pennsylvania State University, University Park, PA, USA. He has been an Associate Professor with the Electrical Engineering and Computer Science Department, Texas A&M University-Kingsville (TAMUK) since 2013. ...
Environmental interest groups have traditionally equated herbicide use with degradation of water quality. If the entire water quality picture is rationally analyzed. the conclusions are quite the contrary. Use of herbicides compared to mechanical site preparation improves or maintains water quality. Short-duration pulses of residues may appear in streamflow. but data from forest ecosystem studi...
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