Search results: 66,433 results (approx.)

1. Technical solutions of forest machine hybridization.

The paper deals with the characteristics of three different types of power train hybridization of forest logging machines and with the benefits of reducing environmental impacts by comparing new technology with more conventional, older technology. New hybridization options that could be implemented ...

Author(s) : Mergl, V.; Pandur, Z.; Klepárník, J.; Kopseak, H.; Bačić, M.; Šušnjar, M.

Publisher : MDPI AG, Basel, Switzerland

Journal article : Energies 2021 Vol.14 No.10 ref.52

2. Improvement of panel edge sealing quality during trimming using statistical process control technology.

Sealing edge is an indispensable working procedure in the production of panel furniture. The key to enhance the overall edge sealing quality of panel is to improve the edge trimming performance. The traditional edge trimming quality control improvement depends on the edge sealing machine operator...

Author(s) : Lou QiaoLian; Hao JingXin; Wu XinFeng; Nie XinLei; Sun DeLin

Publisher : Journal of Forestry Engineering, Nanjing, China

Journal article : Journal of Forestry Engineering 2021 Vol.6 No.3 pp.171-177 ref.10

3. An analysis of South African sawmilling competitiveness.

The South African sawn timber market supply and demand are in equilibrium and significantly associated with the local residential construction market. During the great financial crisis (GFC), the local residential construction market contracted. This caused a reduction in sawn timber demand, price...

Author(s) : Grobbelaar, S.; Visser, J. K.

Publisher : NISC - Taylor & Francis, Grahamstown, South Africa

Journal article : Southern Forests: a Journal of Forest Science 2021 Vol.83 No.1 pp.28-37 ref.31

4. Driving speed influence on operator vibration exposure in forwarding operations.

Mechanized forest works, especially cut-to-length operations, have spread widely over the last decades. Operation of harvesters and forwarders is related with increased productivity compared with manual cutting, generally better working conditions for operators, but it also might have some negative ...

Author(s) : Vasiliauskas, G.; Butkus, R.; Zinkevicius, R.

Publisher : Latvia University of Life Sciences and Technologies, Jelgava, Latvia

Conference paper : Proceedings of 20th International Scientific Conference "Engineering for Rural Development", Jelgava, Latvia, 26-28 May 2021 2021 pp.1789-1794 ref.11

5. Clearcutting and selective logging have inconsistent effects on liana diversity and abundance but not on liana-tree interaction networks.

Understanding the effects of forest management on lianas and their interaction with trees is an important step toward effective forest management. Our study therefore aimed at quantifying the patterns of liana diversity and abundance, and liana-tree interaction network structure in response to...

Author(s) : Addo-Fordjour, P.; Afram, I. S.

Publisher : Wiley, Boston, USA

Journal article : Biotropica 2021 Vol.53 No.2 pp.442-452

6. Are wide but selectively logged buffer strips better than narrow ones?

The microclimate of streamside habitats are protected from the effects of logging with buffer strips of retained trees. However, these buffer strips are often narrow due to their financial loss. Wider, selectively logged buffers might protect the microclimate while providing the same economic...

Author(s) : Berrigan, A.; Halme, P.; Peura, M.; Oldén, A.

Publisher : Taylor & Francis, Abingdon, UK

Journal article : Scandinavian Journal of Forest Research 2021 Vol.36 No.2/3 pp.177-187 ref.44

7. Thermal performance and economic analysis of an indirect solar dryer of wood integrated with packed-bed thermal energy storage system: a case study of solar thermal applications.

The present work is aimed at investigating the thermal performance and the economic feasibility of an indirect solar dryer of wood integrated with thermal energy storage system. The proposed dryer system is composed of a drying chamber, a solar air collector and a packed-bed energy storage (PBES)...

Author(s) : Lamrani, B.; Draoui, A.

Publisher : Taylor & Francis, Philadelphia, USA

Journal article : Drying Technology 2021 Vol.39 No.10 pp.1371-1388 ref.46

8. Influence of radial force and rake angle on ring debarking efficiency of frozen and unfrozen black spruce logs.

The effects of the radial force applied by a ring tip debarker and the rake angle on debarking quality of frozen and unfrozen black spruce logs were studied. A one-arm ring debarker prototype was built, which controlled the radial force, the rake angle, and the cutting and feed speeds. The...

Author(s) : Kharrat, W.; Hernández, R. E.; Cáceres, C. B.; Blais, C.

Publisher : Springer-Verlag GmbH, Berlin, Germany

Journal article : European Journal of Wood and Wood Products 2021 Vol.79 No.3 pp.629-643 ref.many

9. Generalized cutting force model for peripheral milling of wood, based on the effect of density, uncut chip cross section, grain orientation and tool Helix angle.

The influence of the grain angle on the cutting force when milling wood is not yet detailed, apart from particular cases (end-grain, parallel to the grain, or in some rare cases 45°-cut). Thus, setting-up wood machining operations with complex paths still relies mainly on the experience of the...

Author(s) : Curti, R.; Marcon, B.; Denaud, L.; Togni, M.; Furferi, R.; Goli, G.

Publisher : Springer-Verlag GmbH, Berlin, Germany

Journal article : European Journal of Wood and Wood Products 2021 Vol.79 No.3 pp.667-678 ref.24

10. Surface creation and cutting characteristics during sugar maple wood scratching with spherical cone grit.

A series of single-grit cutting tests were performed with spherical cone tools on sugar maple (Acer saccharum) wood to investigate its surface creation and cutting behavior. The tools with apex angles 2α = 84 and 2α = 108 were selected to clarify the effect of negative rake angles. It was found...

Author(s) : Zhang Jian; Sun Ping; Luo Bin; Li Li; Liu HongGuang

Publisher : Springer-Verlag GmbH, Berlin, Germany

Journal article : European Journal of Wood and Wood Products 2021 Vol.79 No.3 pp.679-689 ref.many

11. Pressure control systems for tyre preservation in forestry machinery and forest soils.

Most forestry machinery today has a wheel-driven engine, and its tyre pressure has a significant impact on the compaction and degradation of the forest soil, causing environmental damages. Not only the durability of the tyres but also the driving characteristics and productivity of wheeled forest...

Author(s) : Kunickaya, O.; Hertz, E.; Kruchinin, I.; Tikhonov, E.; Ivanov, N.; Dolmatov, N.; Zorin, M.; Grigorev, I.

Publisher : IOS Press, Amsterdam, Netherlands

Journal article : Asian Journal of Water, Environment and Pollution 2021 Vol.18 No.3 pp.95-102

12. Research on tool wear factors for milling wood-plastic composites based on response surface methodology.

A high-speed milling experiment on wood-plastic composites was performed using cemented carbide tools, and the resulting wear pattern was studied. The influence of the cutting parameters, the cutting speed, feed speed, and axial cutting depth on the tool wear was studied via response surface...

Author(s) : Wei WeiHua; Li YingLi; Li YuanTong; Xu YiQi; Yang ChangYong

Publisher : North Carolina State University, College of Natural Resources, Raleigh, USA

Journal article : BioResources 2021 Vol.16 No.1 pp.151-162 ref.17

13. The effects of drying method on the wood permeability, wettability, treatability, and gluability of southern pine from Australia.

Drying has a major impact on the viability of sawn timber production, particularly through its influence on productivity, energy usage, and product quality. Traditionally, plantation-grown southern pine structural grade timber from Australia has been dried using high temperature (≥ 180°C)...

Author(s) : Leggate, W.; Chandan Kumar; McGavin, R. L.; Faircloth, A.; Knackstedt, M.

Publisher : North Carolina State University, College of Natural Resources, Raleigh, USA

Journal article : BioResources 2021 Vol.16 No.1 pp.698-720 ref.many

14. Analysis of cutting conditions in the process of cross-cutting wood by circular saws.

An analysis was conducted of the effects of cutting conditions in the cross-cutting of wood using circular saws. Gradual wear of the saw blade cutting wedges impacted the entire cutting process. Two different types of circular saw blades were used. One blade type featured sintered carbide tips and...

Author(s) : Kovác, J. H.; Harvánek, P.; Krilek, J.; Kuvik, T.; Melichercík, J.

Publisher : North Carolina State University, College of Natural Resources, Raleigh, USA

Journal article : BioResources 2021 Vol.16 No.1 pp.1029-1041

15. Characteristics of radio-frequency/vacuum combined with mechanical press drying of heavy softwood timbers with longitudinal kerf.

The aim of this study was to evaluate the characteristics of radio-frequency/vacuum combined with mechanical press (RF/VP) drying on three softwood timbers (Douglas fir, Hemlock, and Radiata pine) with longitudinal kerfs. The results were as follows: Due to the dielectric permittivity of wood,...

Author(s) : Zhao XueFeng; Lee ChangJin

Publisher : Walter de Gruyter, Berlin, Germany

Journal article : Holzforschung 2021 Vol.75 No.1 pp.48-55 ref.19

16. Direct and indirect disturbance impacts in forests.

Human and natural disturbances are key drivers of change in forest ecosystems. Yet, the direct and indirect mechanisms which underpin these changes remain poorly understood at the ecosystem level. Here, using structural equation modelling across a 150+ year chronosequence, we disentangle the direct ...

Author(s) : Bowd, E. J.; Banks, S. C.; Bissett, A.; May, T. W.; Lindenmayer, D. B.

Publisher : Wiley, Oxford, UK

Journal article : Ecology Letters 2021 Vol.24 No.6 pp.1225-1236

17. Evaluation of salvage logging productivity and costs in the sensitive forests of Bulgaria.

Steep terrain harvesting can only be implemented by a limited set of operational alternatives; therefore, it is important to be efficient in such conditions, in order to avoid incurring high costs. Harvesting abiotically-disturbed forests (salvage harvests caused by wet snow), which is becoming...

Author(s) : Stoilov, S.; Proto, A. R.; Angelov, G.; Papandrea, S. F.; Borz, S. A.

Publisher : MDPI AG, Basel, Switzerland

Journal article : Forests 2021 Vol.12 No.3 ref.69

18. Investigation of exposure to occupational noise among forestry machine operators: a case study in Brazil.

In mechanized harvesting of wood operations, in a cut-to-length system, occupational noise is emitted by self-propelled forest machines, which compromises the safety and health of operators. Therefore, the occupational noise levels emitted by self-propelled forestry machines, in a cut-to-length...

Author(s) : Camargo, D. A.; Munis, R. A.; Simões, D.

Publisher : MDPI AG, Basel, Switzerland

Journal article : Forests 2021 Vol.12 No.3 ref.many

19. Investigation of feller-buncher performance using weibull distribution.

With the advancement of technology in forestry, the utilization of advanced machines in forest operations has been increasing in the last decades. Due to their high operating costs, it is crucial to select the right machinery, which is mostly done by using productivity analysis. In this study, a...

Author(s) : Bilici, E.

Publisher : MDPI AG, Basel, Switzerland

Journal article : Forests 2021 Vol.12 No.3 ref.32

20. Climate change alters the ability of neotropical forests to provide timber and sequester carbon.

Logging is widespread in tropical regions, with approximately 50% of all humid tropical forests (1.73 × 109 ha) regarded as production forests. To maintain the ecosystem functions of carbon sequestration and timber supply in tropical production forests over a long term, forest management must be...

Author(s) : Hiltner, U.; Huth, A.; Hérault, B.; Holtmann, A.; Bräuning, A.; Fischer, R.

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Forest Ecology and Management 2021 Vol.492

21. Stakeholder engagement in a Forest Stewardship Council Controlled Wood assessment.

Forest certification has become an important element in the trade of forest and wood products in many countries worldwide. We reviewed the Controlled Wood audit process under the Forest Stewardship Council (FSC), which is one of the world's largest forest certification schemes. We analysed an FSC...

Author(s) : Taylor, C.; Lindenmayer, D. B.

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Environmental Science & Policy 2021 Vol.120 pp.204-212

22. Identifying efficient transport pathways in early-wood timber: insights from 3D X-ray CT imaging of softwood in the presence of flow.

Wider use of timber has the potential to greatly reduce the embodied carbon of construction. Improved chemical treatment could help overcome some of the barriers to wider application of timber, by furthering the durability and/or mechanical properties of this natural material. Improving timber...

Author(s) : Burridge, H. C.; Pini, R.; Shah, S. M. K.; Reynolds, T. P. S.; Wu, G.; Shah, D. U.; Scherman, O. A.; Ramage, M. H.; Linden, P. F.

Publisher : Springer, Amsterdam, Netherlands

Journal article : Transport in Porous Media 2021 Vol.136 No.3 pp.813-830 ref.34

23. Cold air ventilation for cooling and drying of poplar wood chips from short rotation coppice in outdoor storage piles in Germany.

The storage and natural drying of wood chips from short rotation coppices (SRC) in open-air piles can be related to high dry matter losses (DML) of more than 20%. Thus it should be researched, whether such loss can energy efficiently be reduced using cold air ventilation (CAV). Respectively, a...

Author(s) : Lühr, C.; Pecenka, R.; Lenz, H.; Hoffmann, T.

Publisher : Elsevier Ltd, Oxford, UK

Journal article : Biomass and Bioenergy 2021 Vol.146

24. Mathematical modelling of the surface roughness in orthogonal cutting of the massive wood.

This paper presented the quality of the treated surface, which is most often followed by roughness representing micro-geometric irregularities of the treated surface. The processing influence parameters behaviour of on the roughness of the treated wood surface was considered, where the results of...

Author(s) : Hasanagić, R.; Hodžić, A.; Bjelić, A.

Publisher : Taylor & Francis, Abingdon, UK

Journal article : Wood Material Science and Engineering 2021 Vol.16 No.2 pp.74-80 ref.21

25. Granulometric characterization of wood dust emission from CNC machining of natural wood and medium density fiberboard.

The aim of this paper was to determine the particle size composition of wood dust emission from CNC milling of natural wood and medium-density fiberboard (MDF) and evaluate the associated occupational exposure risks. The paper is focused on some of the most commonly used materials in the...

Author(s) : Kminiak, R.; Kučerka, M.; Kristak, L.; Reh, R.; Antov, P.; Očkajová, A.; Rogoziński, T.; Pędzik, M.

Publisher : MDPI AG, Basel, Switzerland

Journal article : Forests 2021 Vol.12 No.8 ref.71