This work reports on independent component analysis (ICA) as a tool used to discriminate between odour signals. Measurements of six different alcohol solutions were carried out with a commercial gas sensor array system, a so called electronic nose. The solutions were made of either pure propanol or butanol at concentration levels of 0.5%, 1% and 2%. Principal component analysis (PCA), a standar...

A multifunctional platform based on the microhotplate was developed for applications including a Pirani vacuum gauge, temperature, and gas sensor. It consisted of a tungsten microhotplate and an on-chip operational amplifier. The platform was fabricated in a standard complementary metal oxide semiconductor (CMOS) process. A tungsten plug in standard CMOS process was specially designed as the se...

Due to the poor anti-jamming performance, less gas species, low detection accuracy, short life, medium leaking or carbonmonoxide poisoning and other defects that current sensors for gases dissolved in transformer oil have, a SOFC-based multi-component gas sensor has been designed. The physical, chemical and electrochemical mechanisms of gases in the SOFC have been analyzed, and the mathematical...

A novel signal amplification strategy for quartz crystal microbalance (QCM) based on catalytic gas generation was developed to construct an ultrasensitive immunosensor for the detection of proteins (immunoglobulin G, IgG, used as a model). A catalase modified immunoparticle was prepared to form a sandwich-type immunocomplex with the IgG and anti-IgG antibodies that were immobilized on the QCM s...

Recent experimental realizations of the lattice Schwinger model [Nature 587, 392 (2020) and Science 367, 1128 (2020)] open a door for quantum simulation elementary particles their interactions using ultracold atoms, in which matter gauge fields are constrained by local U(1) invariance known as Gauss's law. Stimulated such exciting progress, we propose new scenario simulating spin-1 Bose-Einstei...

The performance of plasma facing components (PFC) is of great important for the realization of prototype nuclear fusion. Tungsten has been considered as the leading high-Z PFC material for these reactors and tokamaks due to its superior thermophysical properties, high melting point, low sputtering yield, and low tritium inventory. However, its surface deteriorates significantly under helium ion...

Large public displays are becoming a ubiquitous resource in the urban environment. Interconnected over the Internet these hitherto isolated “ad displays” could become a novel and powerful communication medium – networked public displays. One example for such a novel type of communication is their use as community tools. Scattered across the urban landscape and equipped with additional sensors, ...