K. Nakamura

Complete genome sequence of Levilactobacillus acidifarinae type strain JCM 15949 (DSM 19394)

Mugihito Oshiro, K. Nakamura, Rahul Sk, Yukihiro Tashiro et autres

ABSTRACT Here, we report the complete genome sequence of Levilactobacillus acidifarinae type strain JCM 15949 (DSM 19394), which was isolated from a Belgian artisanal wheat sourdough. The genome consisted of a circular chromosome (2,915,962 bp, 51.71% GC content) and a circular plasmid …

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Longitudinal tapering in meter-scale gas jets for increased efficiency of laser plasma accelerators

Raymond Li, A. Picksley, Carlo De Benedetti, F. Filippi et autres

Modern laser plasma accelerators (LPAs) often require plasma waveguides tens of cm long to propagate a high-intensity drive laser pulse. Tapering the longitudinal gas density profile in 10 cm scale gas jets could allow for single stage laser plasma acceleration well beyond …

Challenge of validation in whole-cell spike-in amplicon sequencing to comprehensively quantify food lactic acid bacteriota

Mugihito Oshiro, K. Nakamura, Yukihiro Tashiro

Lactic acid bacteria (LAB) shape diverse communities in fermented foods. Developing comprehensive quantification methods for community structure will revolutionize our understanding of food LAB microbiome. For this purpose, 16S rRNA gene amplicon-based quantification, using spiked exogenous bacterial cells as an internal standard, …

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Design and Control of Self‐sorting Patterns of Supramolecular Peptide Nanofibers

K. Nakamura, Itaru Hamachi

In a living system, myriad biomolecules, such as proteins/peptides, nucleic acids, lipids, saccharides, and other metabolites, undergo self-sorting through specific interactions, resulting in a well-organized structure with sophisticated functions. Self-sorting is the key to realizing life-like emergent functions of synthetic peptide self-assembly. …

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Concerted Hydrosilylation Catalysis by Silica-Immobilized Cyclic Carbonates and Surface Silanols

Shingo Hasegawa, K. Nakamura, K. Soga, Kei Usui et autres

High Resolution Image Download MS PowerPoint Slide Developing a method for creating a novel catalysis of organic molecules is essential because of the growing interest in organocatalysis. In this study, we found that cyclic carbonates immobilized on a nonporous or mesoporous silica …

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Four distinct network patterns of supramolecular/polymer composite hydrogels controlled by formation kinetics and interfiber interactions

K. Nakamura, Ryou Kubota, Takuma Aoyama, Kenji Urayama et autres

Synthetic composite hydrogels comprising supramolecular fibers and covalent polymers have attracted considerable attention because their properties are similar to biological connective tissues. However, an in-depth analysis of the network structures has not been performed. In this study, we discovered the composite network …

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Expression of concern: Versatile plasmonic-effects at the interface of inverted perovskite solar cells

Ahmed Esmail Shalan, Tomoya Oshikiri, Hiroki Sawayanagi, K. Nakamura et autres

Expression of concern for ‘Versatile plasmonic-effects at the interface of inverted perovskite solar cells’ by Ahmed Esmail Shalan, et al. , Nanoscale , 2017, 9 , 1229–1236, https://doi.org/10.1039/C6NR06741G.

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Four distinct network patterns of supramolecular/polymer composite hydrogels controlled by formation kinetics and interfiber interactions

K. Nakamura, Ryou Kubota, Itaru Hamachi

Synthetic composite hydrogels comprising supramolecular fibers and covalent polymers have attracted considerable attention because their properties are similar to biological connective tissues. However, an in-depth analysis of the network structures has not been performed. In this study, we discovered the composite network …

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Phototriggered Spatially Controlled Out-of-Equilibrium Patterns of Peptide Nanofibers in a Self-Sorting Double Network Hydrogel

K. Nakamura, Wataru Tanaka, Kei Sada, Ryou Kubota et autres

Out-of-equilibrium patterns arising from diffusion processes are ubiquitous in nature, although they have not been fully exploited for the design of artificial materials. Here, we describe the formation of phototriggered out-of-equilibrium patterns using photoresponsive peptide-based nanofibers in a self-sorting double network hydrogel. …

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50. Robust vegetation segmentation for image-based field survey

Y. Moriuchi, K. Nakamura, Hajime Mihara, Takayuki Sasaki et autres

This paper proposes a robust vegetation segmentation method against illumination changes and noise, using a unique likelihood with efficient optimization and explainable thresholding for stable image-based field surveys. The proposed segmentation provides crop-focused measurements, with small variance, with plant cover maps. Analysis …

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Multiscale imaging reveals four distinct hierarchical networks in supramolecular/polymer hydrogel composites

K. Nakamura

Radial Density Profile and Stability of Meter-Scale Capillary Discharge Plasma Waveguides

Miles M. Turner, Anthony J. Gonsalves, S. S. Bulvanov, Carlo De Benedetti et autres