Microstructural characterisation of metallurgical grade porous silicon nanosponge particles

Upgraded metallurgical-grade silicon solar cells with efficiency above 20%

Additivity, Metallurgical Recovery, and Grade

Proper estimation of the metallurgical recovery is very important for the assessment of the economical value of a mining business. As this quantity is nonadditive, it is not possible to model its spatial variability or to perform its estimation directly. In the present work, we first recall that additivity can concern the intrinsic nature of point-support quantities, and not only the usual supp...

Porous Silicon Particles for Imaging and Therapy of Cancer

11 11.1 Introduction The aim of the National Cancer Institute is to eliminate death and suffering from cancer by 2015, by harnessing the power of nanotechnology to provide new tools for diagnosing, imaging and treating cancer. Funded research projects include the design and fabrication of multifunctional nanodevices which promise to change the way we pinpoint cancer and deliver anticancer drugs...

Performance Analysis of a Grid-Connected Upgraded Metallurgical Grade Silicon Photovoltaic System

Because of their low cost, photovoltaic (PV) cells made from upgraded metallurgical grade silicon (UMG-Si) are a promising alternative to conventional solar grade silicon-based PV cells. This study investigates the outdoor performance of a 1.26 kW grid-connected UMG-Si PV system over five years, reporting the energy yields and performance ratio and estimating the long-term performance degradati...

Microstructural Characterisation of Chromium Slags

J. Burja, F. Tehovnik, F. Vode, B. Arh, Institute of Metals and Technology, Ljubljana, Slovenia In this chromium slags that form during melting of chromium alloyed steels are examined. During melting and oxidation of these steel grades a considerable amount of chromium is lost, and gained back with slag reduction. Laboratory experiments were performed to study the mechanism of chromium oxide re...