We present here a new approach to simulate three-dimensional vertex etching, which is applicable to quartz crystals and other crystal so. In this paper we describe the theoretical method behind t ... Read More

In this paper, we report the optimal design of a support for a fundamental-type plano-convex AT-cut quartz resonator which was fabricated using our newly developed etching process. We established ... Read More

Quartz crystal microbalances (QCMs) have found application as popular chemical and biological sensing tools. However, their current device geometry prevents their commercialization for industria ... Read More

In our previous work, we studied capacitive micro-accelerometers fabricated using a simple silicon-on-insulator (SOI)-MEMS technology, studied the feasibility of an accelerometer with a beam leng ... Read More

Measurements of the surface texture of objects, including optical and tactile features, using a multimodal micro-electromechanical systems (MEMS) sensor are reported in this paper. The proposed ... Read More

This paper deals with heating technologies for gas sensors. To discuss the requirements of heating accuracy of the sensor quantitatively, the effect of temperature error on the sensitivity of the ... Read More

Buffer type, concentration, and pH value are important factors, which may affect protein formulation, stability, bio-reactivity, and other behavior. When bio-sensing application factors are the i ... Read More

Nitric oxide (NO) is an air pollutant known to adversely affect the environment, humans, and other living organisms. Low-level NO gas is also created by human bodies and emitted as a component of ... Read More

This short review describes our recent approaches and strategies for the development of quartz crystal microbalance (QCM)-based odor sensor systems for environmental and human health monitoring. ... Read More

Partial discharge (PD) usually occurs before the insulation failure of gas-insulated-switchgear (GIS). Early failures in GIS can be detected effectively by monitoring the vibration signal initia ... Read More

An enhanced solution method, which is based on the maximum likelihood estimation (MLE) of the projection plane, is proposed. The method utilizes a 2D target and an optimization process to achiev ... Read More

The autofocus system has gained popularity in over 40 years. Embedded in a camera, it is able to bring the best focused image to the viewer within a few seconds, which frees users from focusing ... Read More

In this study, we evaluate the thermal oxidization methods of iridium to simplify the fabrication of Ir/IrOx pH microsensors. Iridium oxide (IrOx) is a typical pH-sensing material. Specifically, ... Read More

A uric acid biosensor aimed at a simplified determination of salivary uric acid was fabricated and utilized for measurement of diurnal variation of salivary uric acid. The biosensor measures uric ... Read More

Sake brewing is a complicated process. Different kinds of sake with various tastes are produced depending on the raw materials [e.g., rice, water, rice malt (koji), and sake yeast (kobo)], brewi ... Read More

Wettability is an important feature describing the physicochemical surface properties of material surfaces. It can be determined by measurements of the contact angle. A plasma jet reactor with di ... Read More

For some applications of plastic materials, such as polystyrene, an important role is played by the wettability of the material. One of the methods for modification material properties such as wa ... Read More