Abstract
Skin-like soft sensors are key components for human–machine interfaces; however, the simultaneous sensing of several types of stimuli remains challenging because large-scale sensor ...integration is required with numerous wire connections. We propose an optical high-resolution multimodal sensing approach, which does not require integrating multiple sensors. This approach is based on the combination of an optical scattering phenomenon, which can encode the information of various stimuli as a speckle pattern, and a decoding technique using deep learning. We demonstrate the simultaneous sensing of three different physical quantities—contact force, contact location, and temperature—with a single soft material. Another unique capability of the proposed approach is spatially continuous sensing with an ultrahigh resolution of few tens of micrometers, in contrast to previous multimodal sensing approaches. Furthermore, a haptic soft device is presented for a human–machine interface. Our approach encourages the development of high-performance smart skin-like sensors.
From detailed illustrations in The Morning Glory Knitting Method, based on the book Illustrated Yarn Knitting Methods by Kanichiro Komakine, published by Shunshun-do in 1887, it is learned that ...knitted artificial flowers were exhibited in Kobe, Japan, in 1887. Not only detailed morning glory knitting illustrations, but also flower baskets that were used for wakes following the customs of Meiji-era Japan were included in this book. After yarn dyeing was invented in 1888, it became possible to freely create original and innovative knitted artificial flowers. They became popular to the extent that the yarn sold out. Some people even registered their designs. The spread of knitted artificial flowers exerted significant influence. The exploration extends beyond knitting textbooks to encompass job guides and magazines with a focus on the spread of knitted artificial flowers, the evolution of women's independence in various occupations, and an examinations of the surrounding culture, including comparisons with traditional Japanese artificial flowers. This is a brief history of woven artificial flowers in Japan.
Lipopolysaccharides free P3-hydroxybutyrate (3HB)-
co-3-hydroxyvalerate (3HV) production was achieved using recombinant
Corynebacterium glutamicum harboring polyhydroxyalkanoate (PHA) biosynthetic ...genes from
Ralstonia eutropha. Cells grown on glucose with feeding of propionate as a precursor of 3HV unit accumulated 8–47
wt% of P(3HB-
co-3HV). The 3HV fraction in the copolymer was varied from 0 to 28
mol% depending on the propionate concentrations.
Haruyo Eto was a knitting teacher who actively promoted various knitting activities from the Meiji Period to the Showa Period. In1924, she contrived for the first time the practical knitting ...symbols “goritekifugo.” She advocated financial independence and a spirit of self-reliance by knitting after a number of political changes, many wars and the Great Kanto Earthquake. In order to help the country recover from wars and disasters, Eto initiated and implemented a large number of knitting activities. As a result, many Japanese women took up knitting as a means of livelihood, in the hope of living a peaceful life. By learning proper knitting techniques, women were able to use various yarns such as wool and cotton during times of disaster and war, and earn income from selling their goods. While knitting was a symbol of high culture in Europe and the United States, it was a means of sustenance in Japan.
Hyperdimensional computing (HDC) is an emerging computing paradigm that exploits the distributed representation of input data in a hyperdimensional space, the dimensions of which are typically ...between 1,000-10,000. The hyperdimensional distributed representation enables energy-efficient, low-latency, and noise-robust computations with low-precision and basic arithmetic operations. In this study, we propose optical hyperdimensional distributed representations based on laser speckles for adaptive, efficient, and low-latency optical sensor processing. In the proposed approach, sensory information is optically mapped into a hyperdimensional space with >250,000 dimensions, enabling HDC-based cognitive processing. We use this approach for the processing of a soft-touch interface and a tactile sensor and demonstrate to achieve high accuracy of touch or tactile recognition while significantly reducing training data amount and computational burdens, compared with previous machine-learning-based sensing approaches. Furthermore, we show that this approach enables adaptive recalibration to keep high accuracy even under different conditions.
『Amimono Shinan』 (Knitting Tutorial) was published by Hakubunkan in 1907 and reprinted 30 times. In it, there was information about yarn and tools, ways of knitting, miscellaneous notes about ...knitting, as well as 35 knitted works, 28 crocheted works, 5 laceworks and a number of knitted flowers. A sequel was published in 1909, and it was very popular. The author of these books, Tomiko Ishii, had one of her new works published in a girls' magazine for the first time in 1906. A lot of her works were subsequently published in magazines such as 『Shōjo Sekai』 (Girl World), 『Fujin Sekai』 (Women's World), 『Fujin Club』 (Women's Club) and 『Shōjo Gahou』 (Girls' Pictorial) from 1906 to 1915. In this paper I attempted to clarify her popularity and document her works.
Liquid−liquid equilibria (LLE) for the systems 1-propanol + water + K2HPO4 and 2-propanol + water + K2HPO4 were measured at temperatures of (288.15, 298.15, and 308.15) K. The binodal curves of the ...systems were fitted to a nonlinear equation relating the mass fraction of 1- or 2-propanol to that of K2HPO4, and the tie lines were successfully correlated with the Othmer−Tobias and Bancroft equations. LLE results were predicted using a pair of the binodal and Bancroft equations and one of the binodal and Othmer−Tobias equations. Both predictions showed close agreement with experimental values, and the average root-mean-square deviations of the values predicted from the former pair were 0.28 % and 0.27 % for the systems 1-propanol + water + K2HPO4 and 2-propanol + water + K2HPO4, respectively.
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