scholarly journals Time Consumption and Productivity in Wood Extraction Using Traditional Cable Car

2021 ◽  
Vol 5 (2) ◽  
pp. 39-45
Author(s):  
Ylli KORTOÇI ◽  
Mirvjena KORTOÇI

Forests are a very important component for the environment in Albania considering the fact that they occupy more than 36% of the country's surface. The evaluation of the working time consumption and productivity of the various sub-phases of wood extraction work, in a beech forest in Albania, with traditional methods and old equipment’s, was considered of interest in this study to highlight the weaknesses to be corrected. Considering the slope in our study site, a traditional cable car Austrian Type R-Gander (A 6832 SULZ) manufactured in 1985 was used for the extraction of timber. Trunks from a distance of 800 - 900 m were extracted using this equipment. The operating team consisted of 3 workers. 10 - 15 working days are required for the assembly and disassembly of the equipment. During the work performed, data regarding working times were collected, paying special attention to dead times, where avoidable times are high 61,0 %. The extracted volume was 31.46 m3, which corresponds to a weight of 41.82 t.

Nativa ◽  
2017 ◽  
Vol 5 (4) ◽  
pp. 298-302 ◽  
Author(s):  
Eduardo S. Lopes ◽  
Diego Oliveira ◽  
Carla K. Rodrigues ◽  
Carlos H. Drinko
Keyword(s):  

2021 ◽  
Vol 26 (4) ◽  
pp. 119-131
Author(s):  
Alexander Tokarčík ◽  
Henrieta Pavolová ◽  
Tomáš Bakalár ◽  
Lucia Bednárová

The article deals with innovation management in the conditions of a manufacturing company whose aim is to reduce the working time fund that directly determines productivity or efficiency of the company in competitive market conditions. Based on explicit quantification of time frames based on an analytical – chronometric method applicable to production operations in the process. The results of observation, time measurement, research and evaluation of time consumption during the implementation of a repeated production operation, or its complex part within defined production site are presented. Based on explicitly performed quantitative analysis, introducing of innovative technology, innovative solutions in the field of production technology management that support sustainable development with an emphasis on the development of environmental quality are presented including an explicit quantification of working time fund savings through the implementation of innovative machinery and equipment in critical production operations of the analysed production process.


Forests ◽  
2020 ◽  
Vol 11 (10) ◽  
pp. 1081
Author(s):  
Witold Grzywiński ◽  
Rafał Turowski ◽  
Bartłomiej Naskrent ◽  
Tomasz Jelonek ◽  
Arkadiusz Tomczak

The purpose of this study was to establish the impact of season on productivity, labour consumption, and working time structure during timber harvesting from young alder stands (Alnus glutinosa Gaertn.). An early thinning process was performed in summer and winter in pure alder stands (38 and 40 years old) in the Płaska Forest Division (NE Poland). The felling and processing operations were performed by experienced loggers using the cut-to-length (CTL) system, and forwarding with manual loading and unloading involved the use of a Zetor 7045 (65 HP) farming tractor and trailer. In both summer and winter, the loggers spent most of their labour time on felling trees (approx. 23%) and bucking (approx. 36%). Assistant loggers spent most of their time stacking logs (49.2% in summer and 58% in winter). The most time-consuming activities in forwarding were loading, unloading, and transportation. The average time consumption of tree felling and processing amounted to 0.36 ± 0.11 h/m3; that of forwarding was lower, at 0.24 ± 0.07 h/m3. No statistically significant differences in the labour consumption of tree felling were identified between winter and summer (p = 0.863). For forwarding, labour consumption was significantly higher in winter (0.28 h/m3) than in summer (0.19 h/m3, p = 0.001). Average productivity was 3.02 ± 1.09 m3/h for tree felling and 4.76 ± 1.80 m3/h for forwarding. The productivity of felling was similar in winter (2.83 m3/h) and in summer (3.22 m3/h). For forwarding, productivity was significantly higher in summer (5.70 m3/h) than in winter (3.81 m3/h, p < 0.01).


2019 ◽  
pp. 23-35
Author(s):  
Luís Ávila Silveira ◽  
Norberto Santos

Leisure is currently seen as a social value of reference. Perceived and valued as a way of rest, but simultaneously of fun, development and personal formation, leisure affects a significant part of our free time and our free will. In this article, particular attention is given to the explication and the integration of the concepts of working time, free time and leisure time. It is valued the interpretation given to leisure and the consecutive changes that brought us to the current understanding of leisure practices. Various perspectives of socioeconomic interpretation of leisure valuation, from the civilization of leisure to the societies of free time, consumption, spectacle, fun, postmodern and hypermodern, are discussed. In view of the enormous diversity of interpretations, a synthesis work is carried out on the meanings of the relations between the socioeconomic and the leisure elements.  


2021 ◽  
Vol 93 ◽  
pp. 03011
Author(s):  
Elena Shevchenko ◽  
Angelika Efremova ◽  
Nataliya Oshovskaya ◽  
Aleksey Voloshin ◽  
Anna Finogentova

The article is devoted to the study of the impact of digitalization on the accounting of working time. The paper considers the traditional methods of accounting for working time, and modern methods, the use of which is associated with the development of digitalization: methods based on the use of software and hardware control and automated systems for recording working time. The advantages and disadvantages of modern methods of accounting of working time are revealed, their functionality is described. It has been established that the organization of the system for monitoring and recording working time based on the use of modern methods allows automating the elements of the analysis of the activities of each employee and the enterprise.


Author(s):  
Santa KALEJA ◽  
Agris ZIMELIS ◽  
Andis Lazdins ◽  
Per Olof Johansson

The aim of this study is to investigate potential uses of Kranman Bison 10000 6WD forwarder in stands, where roundwood is extracted with a chainsaw and Vimek 404 T5 harvester in normal and difficult forwarding conditions. Productivity of Kranman forwarder was compared with medium-sized John Deere 810 forwarder under normal conditions. In total 230 loads were forwarded during the study, including 63 loads from areas, harvested with a chainsaw, and 167 loads from areas, harvested with Vimek 404 harvester. The average forwarded load is 2.0 m³ (the maximum load is 2.5 m³ therefore the average load capacity is 80%). In average 33 minutes of productive work time were spent by forwarding one load (the proportion of productive working time is 94% from total engine hours of the machine). The average length of forwarding road in trials is 286 m. In normal conditions forwarding of 1 m³ of roundwood extracted with a chainsaw takes 15 minutes of productive working time, but in difficult forwarding conditions the time consumption increases by 13%. The average forwarder fuel consumption is 1.8 L per hour. Accordingly, 0.8 L of fuel are consumed to forward 1 m³ roundwood. In comparison, John Deere 810 under similar conditions consumed 1.6 L fuel to forward 1 m³ roundwood. Study results prove that the best application of Kranman Bison 10000 is forwarding small stands or individual trees logged with a chainsaw. Forwarder can work on soils with low bearing capacity, however productivity can be significantly reduced by stumps and uneven terrain.


Author(s):  
Sushant Bajpai ◽  
Nehil Shreyash ◽  
Muskan Sonker ◽  
Vishwas Gupta ◽  
Saurabh Kr Tiwary ◽  
...  

Artificial Intellignece (AI) is a platform lending immense assistance in discovering and developing drugs and thus, various such approaches have been developed with the intent of simplifying and improving biomedical operations such as drug repurposing and drug discovery. In the past decade, AI-based investigation of nanomedicines, as well as non-nanomedicines has reached the clinical level. In semblance with the traditional methods of therapy, nanomedicine therapy is employed at limited doses. The study of a variety of drugs resulted in the conclusion that the effect of each drug is variable for every patient and, evaluating that perfect drug combination manually is a time-consuming as well as an inefficient treatment method. Therefore, the use of AI simplifies and reduces the time consumption in determining the perfect customized drug combination for nano-therapy. The area with the most potential for meeting this reality is to optimize the drug and dosage parameters. It is a universally known fact that cancer is dangerous and unique because of the exacting challenges it poses during treatment and, to achieve a better treatment, the therapeutic effect on each patient must be delineated even if the volume of data generated is massive. The article aims at analyzing the AI technologies that help yield results much quicker, make the analyses simple, and efficient.


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