No abstract

No abstract

No abstract

No abstract

A cost analysis for the possibility of a log identification system using Radio Frequency Identification (RFID) is presented in this paper. The introduction provides a brief description of the RFID technology and its usefulness within the area of forest logistics. Information network mapping is used to facilitate an understanding of the current information flow and identification requirements along the supply chain. The cost analysis is performed using the method of break-even analysis using nine different scenarios by means of a case study at the Ortviken paper mill, which is located in central Sweden. The analyses of the processes in the supply chain revealed that the potential exists to streamline operations and to make more efficient use of the available resources by implementing an open loop RFID-based log tracking system in the supply chain using read only tags. Furthermore, this study indicates that even in those cases in which RFID does not provide any major improvements to the firm’s inventory management; it is still possible to achieve economic benefits. However, implementation of such a system will require further development of, in particular, the RFID tags to satisfy the feasibility requirements in the wood supply chain

The outbreak and rapid spread of SARS-CoV-2, commonly known as COVID-19, has led to a loss of life, widely spread economic consequences, and changed behavior in many, if not all, sectors of society. One such sector is institutes for higher education. Against this backdrop, in this paper, we aim to study how engineering training was affected at the beginning of this global pandemic. The point of departure in the paper is the students' perceptions. Our study is based on survey responses from students from Singapore, Sweden and Taiwan. Three themes were identified in the results: a) issues related to transitioning from the physical classroom to an online environment, b) examination activities, and c) perceptions about the future. As such, this paper contributes with first-hand experiences and reflections on engineering training during a global crisis.

Mohammadi Z., Mohammadi Limaei S., Lohmander P., Olsson L. (2017): Estimating the aboveground carbon sequestration and its economic value (case study: Iranian Caspian forests). J. For. Sci., 63: 511-518.The aim of the study is to estimate the aboveground carbon sequestration and to determine the economic value of forests in carbon sequestration as a way of mitigating climate change. This research was conducted at Asalem forests in the north of Iran. In order to estimate the amount of annual carbon sequestration, the annual volume growth of stand was determined using the diameter increment data and tariff. The amount of carbon sequestration was estimated based on wood density and using the allometric equation. The carbon model was obtained for each species. The value of sequestrated carbon in stumpage and the net present value of carbon sequestration were determined in order to estimate the economic value of carbon sequestration. Results indicated that the annual volume growth per hectare and the carbon stored are 6.023 m 3 ·yr -1 and 2.307 t·ha -1 , respectively. Finally, the carbon sequestration value of stumpage and the net present value of carbon sequestration are 11,023.753 and 790.361 (10,000 IRR·t -1 ·ha -1 ), respectively. Our results are very useful in estimating the total economic value of Asalem forests and other Iranian Caspian forests in the future.

No abstract