Electronic goods are a major consumer of many critical metals, including copper, nickel, tin, zinc, lead, and precious metals. The processing end-of-life electronic equipment (E-Scrap) is becoming increasingly important to maintain the supply metals required globally, reduce environmental pollution. Currently, dominant route for E-Scrap pyrometallurgical processing, with first stage being reduc...

Fired steam generators are the dominating technology of coal combustion in power plants. This paper presents a model for pulverized coal fired steam generators in Modelica. The model components are designed as an extension of SiemensPower, a Modelica library for transient simulation of power plants. The focus is on coal combustion, gas-particle-flow and radiation heat transfer in the furnace. T...

Garam mandi (Bath salt) berbentuk seperti scrub atau lulur yang biasanya digunakan pada saat mandi. Bath salt dibuat dengan bahan utamanya Epsom. ini memiliki warna putih cerah. belum banyak dikenal oleh masyarakat. Untuk dapat memperkenalkan produk baru maka perlu dilakukan analisis pasar terhadap tersebut diantaranya kemasan. Salah satu daya tarik konsumen adalah Tujuan penelitian yaitu mengi...

The aim of this article is to present an overview impurities alkali metals and alkaline earth elements included in smelter-grade alumina other raw materials that primarily report the electrolyte, i.e., bath, suggest pathways for improved control at primary aluminum smelters. Comments are on how these affect intermediate subprocesses, metal products, cell condition. authors have worked create a ...

A coexistent system of itinerant and Iocalized electrons was prepared and the magnetic properties of bath electron~ were investigated. a-(BEDT-TTF)2CSCOjSCN)4 (abbreviated as the Csco Salt ), a-(BEDT-TTF)2RbCOjSCN)4 (the Rbco Salt), and a"-(BEDT-TTF)2 Ki 4Co(SCN)4 (the KCO Salt), undergo metal-insulator transitions at 10 K, 190 K, and 130 K. respectively. The ESR measurement of the Rbco sait in...

Developments in technology and the marketplace now make it possible for embedded systems to communicate in local Ethernet networks as well as on the Internet. Network communications can make an embedded system more powerful and easier to monitor and control. Ethernet solves the problem of remote communication with the embedded application. Challenges like application monitoring, control, diagno...

Silicomanganese (SiMn) is an alloy used in steelmaking to provide both Si and Mn additions at low carbon contents. In South Africa, SiMn is produced in three-phase alternating current (AC) submerged arc furnaces (SAFs) by carbothermic reduction of manganese ores in the form of lump, sinter, and briquettes (Steenkamp and Basson, 2013). In a SAF the electrode tips are submerged in a porous charge...