In recent years, there has been a growing desire to monitor and control harmful substances
arising from industrial processes that impact upon our health and quality of life. This has led …

Volatile compounds not only contribute to the distinct flavors and aromas found in foods and
beverages, but can also serve as indicators for spoilage, contamination, or the presence of …

Establishing a platform comprising different nanostructured oxides is an emerging idea to
develop highly sensitive and selective sensing devices. Herein, novel 3D‐heterostructures …

Electronic noses can be applied as a rapid, cost-effective option for several applications.
This paper presents the results of measurements of samples of two pathogenic fungi …

Significant scientific efforts have been made to mimic and potentially supersede the
mammalian nose using artificial noses based on arrays of individual cross-sensitive gas …

This article develops a low-cost dual-input multisensor odor detection system relying on
sensor detection technology and the changing characteristics of the odor itself. The finite …

Metal oxide semiconductor (MOS) gas sensors have many advantages, but the main
obstacle to their widespread use is the cross-sensitivity observed when using this type of …

This article aims to study how to use gas sensor array detection system to realize the remote
contactless identification of drug-producing chemicals in the external environment. The …

This paper presents the design and experimental characterization of a portable high-
precision single-phase lock-in instrument with phase adjustment. The core consists of an …

Narcotic and psychotropic drugs seriously endanger human health and the stable
development of society. In order to snipe drugs from the source, it is extremely significant to …