In this work, hierarchical WO3 core-shell microspheres were synthesized via a facile template-free precipitation method. Gas sensing properties of the synthesized powder to acetone and some other volatile organic compounds were comparatively investigated with commercial WO3 nanoparticles. The synthesized and commercial powders were characterized by X-ray diffraction, scanning electron microscop...

The rate of return on investment for unit-linked insurance products in Indonesia is still volatile and depends the instruments performance. However, net that given to policyholders projected at beginning year used as a benchmark choosing right instrument, referred credited interest rate. Interest rates movements affect yield Therefore, calculation requires appropriate methods reduce risk loss, ...

investment in oil and gas upstream activities is very important for the exploration and development of oil and gas fields. different and various laws and regulations deal with the investment in upstream operations. by reviewing these various laws and regulations, this research paper tries to discuss to what extent these laws and regulations have created legal confident for foreign investment up...

Field studies have demonstrated that it is possible to evaluate the state of many shipboard systems by analyzing the electrical power that is drawn by electromechanical actuators (Ramsey et al. 2005, DeNucci et al. 2005, Cox et al. 2006, Cox et al. 2007). This paper demonstrates how a device known as a non-intrusive load monitor (NILM) uses only electrical power data to detect several critical ...