Sustainable production of levulinic acid and its derivatives for fuel additives and chemicals: progress, challenges, and prospects - Green Chemistry (RSC Publishing) DOI:10.1039/D1GC02919C,ZX-DECL-PSSET-(1)(W),ZXメディアIP電話機用(電話機壁掛用品),Analysis and optimization of a high-speed generator's cooling structure based on Taguchi method - ScienceDirect