This paper presents a new methodology for detecting the longitudinal location of the hidden hole in a log using impact-echo testing.The hole and the end surface of the log produced two different amplitude peaks in the frequency spectrum after a mechanical tap on the top of the log.The ratio of the two frequencies was used to estimate AC Power Switc
A considerable body of research exists concerning the development of technologies to engineer sterility in forest trees.The primary driver for this work has been to mitigate concerns arising from gene flow from commercial plantings of genetically engineered (GE) trees to non-GE plantations, or to wild or feral relatives.More recently, there has bee
Of 214 Pseudomonas strains isolated from maize rhizosphere, 46 turned out to be antagonistic, of which 43 displayed clear colony phase variation.The latter strains formed both opaque and translucent colonies, designated as phase I and phase II, respectively.It appeared that important biocontrol traits, such as motility and the production of antifun
This study aimed to evaluate the environmental impact of using liquefied petroleum gas (LPG) in small fishing vessels by conducting a life cycle assessment (LCA) in Korea.For the first time in the country, LPG engines designed for small fishing ships were utilized in this study.In addition, this research examined the potential benefits of employing