Analysis of Technologies and Technological Process of Forest Harvesting – Case Study Tuzla Canton

2021 ◽  
pp. 930-944
Author(s):  
Velid Halilović ◽  
Jusuf Musić ◽  
Jelena Knežević ◽  
Edin Jusufović
Keyword(s):  
Technological Process ◽  
Forest Harvesting

scholarly journals Biotic response to forest harvesting in acidic blanket peat fed streams: A case study from Ireland

2013 ◽  
Vol 310 ◽  
pp. 729-739 ◽  
Author(s):  
Connie O'Driscoll ◽  
Elvira de Eyto ◽  
Mark O’Connor ◽  
Zaki-ul-Zaman Asam ◽  
Michael Rodgers ◽  
...  
Keyword(s):  
Forest Harvesting ◽  
Biotic Response ◽  
Blanket Peat

scholarly journals Optimization of a forest harvesting set based on the Queueing Theory: Case study from Karelia

2015 ◽  
Vol 61 (4) ◽  
pp. 211-220 ◽  
Author(s):  
Ilya Shegelman ◽  
Pavel Budnik ◽  
Evsey Morozov
Keyword(s):  
Queueing Theory ◽  
Timber Harvesting ◽  
Operational Efficiency ◽  
Forest Harvesting ◽  
Set Design ◽  
Optimal Harvesting ◽  
Queueing Model ◽  
Modeling Methods ◽  
The Republic

Abstract The modern technological process of timber harvesting is a complex system both technically and organizationally. Nowadays, the study of such systems and improvement of their efficiency is impossible without the use of mathematical modeling methods. The paper presents the methodology for the optimization of logging operations based on the queueing theory. We show the adapted queueing model, which characterizes the process of logging with the use of a harvesting set consisting of harvesters and forwarders. We also present the experimental verification of the designated model that confirmed mode’s adequacy. The analysis of the effectiveness of the investigated harvesting set was conducted and the recommendations for its optimization were drawn. The research was conducted in the Pryazhinsky District in the Republic of Karelia. We showed that significant improvement of operational efficiency of the investigated harvesting set in the study area cannot be done by adjusting separate machine operations (i.e. by reducing the time of operations execution and their steadiness). However, a change in the number of machines allowed significant improvement in the operational efficiency. The most optimal harvesting set design for the experimental area consisted of two harvesters and two forwarders.

Monitoring moisture and inorganic content of forest harvesting residues for energy production purposes: A case study

2020 ◽  
Vol 61 (1) ◽  
pp. 8.01-8.12
Author(s):  
Mahdi Vaezi ◽  
◽  
Md Ruhul Kabir ◽  
Amit Kumar ◽  
◽  
...  
Keyword(s):  
Energy Production ◽  
Forest Harvesting ◽  
Inorganic Content

An integrated TRIZ approach for technological process and product innovation

2015 ◽  
Vol 231 (6) ◽  
pp. 1062-1077 ◽  
Author(s):  
Miao Li ◽  
Xinguo Ming ◽  
Maokuan Zheng ◽  
Lina He ◽  
Zhitao Xu
Keyword(s):  
Problem Solving ◽  
Technological Process ◽  
Manufacturing Process ◽  
Product Innovation ◽  
Interaction Matrix ◽  
Function Model ◽  
Manufacturing Defects ◽  
Root Cause ◽  
Innovative Solution

Process trimming (also can be called as trimming for process) helps to trim and eliminate process operations by redistributing their functions among other operations. It offers one way to eliminate key disadvantages in product and manufacturing process that other methods do not see. However, few methods have been disclosed in a structured way for process trimming effectively. Therefore, this article proposes an integrated process focused on technological process and product innovation to solve the key problems with process trimming-based TRIZ (theory of inventive problem-solving) approach. This method helps to identify and inventively solve the key problems and maximize use resource of system and supersystem. First, process trimming candidates are identified based on component function model, component trimming rules, process function model analysis, component–process interaction matrix, and root cause analysis. Then, three types of process trimming strategies are presented. Algorithm of process trimming is developed to identify key problems in technological process. TRIZ problem-solving tools are used to solve these key problems. Finally, a case study of refrigerator door foam innovative design and manufacturing process is investigated to test the efficiency of the approach. The innovative solution significantly decreases manufacturing defects and service cost.

scholarly journals Considering the relationship of slope and soil loss on skid trails in the north of Iran (a case study)

2013 ◽  
Vol 59 (No. 9) ◽  
pp. 339-344 ◽  
Author(s):  
M. Akbarimehr ◽  
H. Jalilvand
Keyword(s):  
Soil Loss ◽  
Rainfall Intensity ◽  
Forest Harvesting ◽  
Slope Gradient ◽  
Slope Length ◽  
The North ◽  
North Of Iran ◽  
Relationship Of ◽  
The Relationship

With increasing mechanization of forest harvesting operations the impacts on soil have increased quite dramatically. The objective of this paper was to examine the relationship of slope and soil loss. This research was carried out in parcels 14 and 26 of the third district of Nav-Asalem forest in the north of Iran. Erosion plots were 75, 150 and 225 m<sup>2</sup> with two slope classes. After each rainfall event the amount of runoff was measured; then, a sample was taken to determine the weight of soil loss. The results of correlation analysis by Pearson&rsquo;s test between soil loss and slope classes, soil loss and slope length showed that there was a significant (P &lt; 0.05) and positive correlation between the mentioned factors. Also, linear regression between soil loss, slope length and slope gradient was significant. It could be concluded that studying and underlying factors that increase soil loss such as soil type, rainfall intensity, should also be taken into consideration in future. Skid trail construction and skidding should be limited to the slope of &lt; 20%; machine traffic should be restricted. The above-mentioned conclusions can be applied to proper harvesting and management of forest ecosystems.&nbsp; &nbsp;

Life Cycle Assessment of Timber Formwork: Case Study

2014 ◽  
Vol 1001 ◽  
pp. 155-161
Author(s):  
L'uboš Krišták ◽  
Rastislav Igaz ◽  
Dušan Brozman ◽  
Roman Réh ◽  
Petra Šiagiová ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Experimental Model ◽  
Technological Process ◽  
Experimental Research ◽  
Manufacturing Process ◽  
Energy Savings

The article deas with evaluation of the selected parts of a life cycle of timber formwork on a wooden basis, notably in the field of manufacturing and usage. Experimental research focused mainly on assessing the possibilities of energy savings in a manufacturing process through shortening a technological process of moulding. By optimalisation of a moulding period, it is possible to achieve considerable energy savings. Based upon the experiments, we created an experimental model in order to determine optimum moulding time. Withing a process of usage, we evaluated particular materials with regard to re-use cycle based upon the experience of commercial manufacturers.

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