Usaha Donat Kusumastuti berdiri pada bulan Agustus 2020.Mitra yang memberanikan diri untuk mendirikan usaha di tengah pandemi Covid 19 yang melanda dunia khususnya Indonesia ini tetap bisa berjalan hingga saat ini.Dengan kondisi banyak keterbatasan tidak menghalangi mitra untuk tetap menjalankan usaha ini yang dimulai dari dapur rumah pribadi pemil
Herein, we present a practical, more efficient, environmentally friendly method for the synthesis of 1,5-benzodiazepine via condensation of benzene-1,2-diamine with commercially available ketones.The reaction was performed using various heterogeneous clay based Armored Vehicle catalysts, including Montmorillonite-K10, Montmorillonite-KSF, Kaoline,
This paper aims to find a desirable new thickener for producing lithium grease.To this end, a lithium grease was prepared using self-made 9,10-dihydroxystearic Tank acid (DHSA) as the thickener.Then, the properties of the DHSALi-based grease were compared with the traditional lithium grease prepared from 12-hydroxystearic acid (HSA).Additionally, t
Silicon-based light emitting diodes (LED) are indispensable elements for the rapidly growing field of silicon compatible photonic integration platforms.In the present study, graphene has been utilized as an interfacial layer to realize a unique illumination mechanism for the silicon-based LEDs.We designed a Si/thick dielectric layer/graphene/AlGaN