## 2 _An Overview of Published Articles_
[13] investigated the feasibility of using vibration monitoring on a pneumatic gripper for adaptive control during the milling process. This study analyzed vibration data collected during milling operations, employing fast Fourier transform to identify the dominant frequencies related to tool cutting [14; 15]. Statistical analysis revealed that tool type, spindle rotation, and material significantly influenced vibration patterns. While feed rate showed less impact, the results suggest that vibration monitoring can potentially serve as a valuable signal for adaptive control. Future research will focus on combining vibration data with surface roughness measurements and developing a smart pneumatic gripper for the woodworking industry. The research by [PERSON] et al. [16] shows the potential to increase the value of Portuguese eucalyptus forests by using them for gulam production. This research succeeded in producing gulam from eucalyptus without changing the standard production process. The resulting gulam exceeded the strength requirements for high-strength softwood gulam. The aim of the paper by [PERSON] [17] was to improve the properties of black poplar wood through impregnation with calcium oxide solutions. This research compared vacuum and immersion impregnation methods, using different solution concentrations. The results showed that both methods improved the wood's thermal stability and flame resistance while reducing water absorption and swelling. The impregnation process also affected the wood's surface properties, increasing roughness but decreasing water contact angle. This study concludes that calcium oxide is effective in improving the overall performance of black poplar wood. The study [18] compared the embedment strength of cross-laminated timber (CLT) reinforced with glass fiber-reinforced polymer (GFRP) or densified wood. The results showed that both reinforcement methods improved embedment strength, with densified wood offering the highest values. The embedment strength was higher when the load was applied parallel to the outer layers of CLT [19]. The NDS formula (National Design Specification) provided the most accurate prediction of embedment strength compared to other models. This study concludes that both densification and GFRP reinforcement can enhance CLT performance, but densification appears to be a more effective option. A recent paper by authors [PERSON] and [PERSON] [20] investigated the surface roughness of chestnut wood in different anatomical regions and trunk heights. This research found that surface roughness varied significantly depending on the orientation of the wood grain, with measurements perpendicular to the grain resulting in higher roughness values. While no significant differences were observed between heartwood and sapwood roughness, tangential surfaces exhibited the highest roughness overall. This study concludes that surface roughness in chestnut wood is primarily influenced by wood grain orientation and is consistent across different trees and trunk heights. This research was supported by the Scientific grant agency of the Ministry of Education, Science, Research and Sports of the Slovak Republic and the Slovak Academy of Sciences under project No. 1/0323/23. Thanks to all the authors and peer reviewers for their valuable contributions to this Special Issue 'Advances in Wood Processing Technology'. I would also like to express my gratitude to all the staff and people involved in this Special Issue. The authors declare no conflict of interest.