This study elucidated the effect of diamond abrasive on the ionic conductivity of polyethylene oxide (PEO) as a solid polymer electrolyte and its electrolytic reaction on WC-Co based ultra-fine grain cemented carbides in order to develop an electrolytic polishing method without using an electrolyte for SiC and GaN wafer substrates and cemented carbides. Diamond grinding tool bonded with PEO using NaSCN as sodium salt were prepared and the characteristics of the grinding tool were evaluated. The ionic conductivity of the samples was determined by AC impedance measurement. The addition of abrasive grains increased the ionic conductivity by up to approximately 1970 % compared to the PEO and NaSCN samples. Furthermore, electrolytic machining tests were conducted on cemented carbide using the fabricated grinding tool, and the specimen surfaces were analyzed by SEM, EDS, and XPS after the tests. After the electrolytic processing test, many granular materials of 0.5～2 μm in size were observed on the specimen surface. The XPS analysis revealed the formation of tungsten oxide (WOx). Cobalt, which is the binder phase, was partially leached, and oxides and hydroxides were formed. This shows potential for application to electropolishing without the use of electrolytic solution.

Recently, five-axis machine tools with non-orthogonal rotation axes have been developed to achieve a high stiffness and large machining area. Such machine tools are customarily developed as partial modifications of conventional orthogonal five-axis machine tools. However, significantly modifying the traditional structures of machine tools has the possibilities to improve several characteristics. Then, if there is an evaluation method of the several characteristics quantitatively before new non-orthogonal five-axis machine tools are developed, development efficiency is improved. Therefore, this paper classifies the machining area into four categories based on the posture conditions and derives the machining area for the three current mainstream types of configurations. Finally, it is shown that the relationship between the axis configuration obtained from the evaluation and the machining area of the five-axis machine.

In recent years, the commercial application of teleoperation for wheeled humanoids has advanced, driving active research and development of related technologies. However, current wheeled humanoid operation systems often rely on glove-based devices to provide tactile and force feedback to the operator's fingers. This approach restricts finger movement, making it difficult for operators to perform delicate tasks simultaneously with movement operations using their upper limbs. Research on performing movement operations exclusively with the lower limbs has been conducted, but these systems have yet to reproduce realistic contact forces. To resolve these issues, this study proposes a novel interface named ”FRIC” (Foot Reactive and Intuitive Controller), which utilizes dimensional scaling bilateral control to enable the realistic presentation of contact forces. This interface allows intuitive control using only the operator's lower limbs. Experimental evaluations in various environments demonstrated that operators could effectively acquire force feedback from remote environments through FRIC. Additionally, obstacle navigation tasks were conducted to assess the effectiveness of the proposed interface.

Since enzyme-linked immunosorbent assay (ELISA) requires time for antigen-antibody reaction, it generally requires a long time of 1 to 12 hours or more, and the problem is that it cannot be used as rapid test.

In this study, we aim to speed up ELISA using electric field mixing (EFM)． Specifically, we developed the microplate for electric field mixing with versatility in mind, examined an ELISA protocol using EFM, and investigated a new evaluation method suitable for miniaturization, replacing absorbance evaluation.

As a result, we found that rapid ELISA method is possible by using a glass plate and performing EFM at frequency that shows vigorous stirring behavior and by applying EFM not only to the antigen-antibody reaction process but also to the color development process. Also, regarding the evaluation of ELISA, we found that it is possible to evaluate even minute amounts by evaluating "saturation" using a light quality sensor instead of the conventional absorbance measurement.

Our method has been enriched from the original KIZKI algorithm by introducing a pair of schemes of anisotropic lattice and of micro-saccadic processing in digital image. An anisotropic lattice was designed by imitating the human retina configuration of foveal and peripheral visions. A saccadic processing was fabricated by using the mean-shift method within the whole image so that effective careful inspection could reduce the cost with no degradation in performance. Experiments using texture images with defects showed that the proposed method becomes capable to cope with the tiny defects.