From now on transition metal catalyzed cross-coupling reactions can be performed in food grade and waste vegetable oils. Appropriate methodologies for high-throughput screening isolation techniques applicable oils are described.

Hydrodistilled volatile oils, as well as the extracts from waste water after hydrodistillation from the aerial parts of Satureja montana and Satureja cuneifolia, growing wild at Mt. Biokovo (Croatia), were analyzed by GC-MS. Sixty compounds were identified in four samples. The major constituents of essential oil obtained from the plant material of S. montana were carvacrol (63.4%) and thymol (1...

Abstract: This paper studies the dynamic response of a wind turbine gearbox under different excitation conditions. The proposed 4 degree-of-freedom (DOF) dynamic model takes into account the key factors such as the time-varying mesh stiffness, bearing stiffness, damping, static transmission error and gear backlash. Both the external excitation due to wind and the internal excitation due to the ...

This study addresses the chemical composition of some commercial essential oils (clove, juniper, oregano, and marjoram oils), as well as appropriate herbal extracts obtained in the process of cold maceration and their biological activity against selected Escherichia coli strains: E. coli ATTC 25922, E. coli ATTC 10536, and E. coli 127 isolated from poultry waste. On the basis of the gas chromat...

The expansion of oil palm cultivation in Indonesia has been driven by a strong world demand for food especially fats and oils. Commencing in the island of Sumatra, it spread out to other island like Kalimantan, Sulawesi and Irian but not to the island of Bali which was already well developed. The role of palm oil in developing remote inland regions and improving the standard of living of rural ...

The Organic Bin Recycler machine is designed on a small scale to be placed in the kitchen and functions as special trash can for organic waste. design of this aims reduce problems related disposal food waste waste, environmental pollution, produce compost. Composting done by adding bioactivator. carried out with catia v5 software accordance calculations that have been done. has two main compone...

New generations of biorefinery combine innovative biomass waste resources from different origins, chemical extraction and/or synthesis of biomaterials, biofuels, and bioenergy via green and sustainable processes. From the very beginning, identifying and evaluating all potentially high value-added chemicals that could be removed from available renewable feedstocks requires robust, efficient, sel...

Reducing the impact of human activity on environment and, in general, Earth, represents most challenging target next years [...]

Preliminary notes This paper in its theoretical part presents basic and advanced methods of Rapid Prototyping (RP) technology with a special focus on Fused Deposition Modelling (FDM) method used by authors on Faculty of Manufacturing Technologies of Technical University of Košice with a seat in Prešov (Slovakia). Principles of FDM technology and materials used for production of models and produ...

The gearbox is a complicated rotating machinery equipment, in order to realize the gearbox fault early detection and prevention, it is the key to carry out the online diagnosis. This paper used the adaptive variable step-length natural gradient blind source separation algorithm to realize the helicopter gearbox meshing vibration signal and fault vibration signal effective separation. Through th...