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microsystems & Nanoengineering 2024年第2期10卷 83-90页

作者： Shinji Bono Ryotaro Nakai satoshi Konishi Research Organization of Science and Technology Ritsumeikan UniversityShigaJapan Ritsumeikan Advanced Research Academy KyotoJapan Ritsumeikan Global Innovation Research Organization Ritsumeikan UniversityShigaJapan Graduate School of Science and Engineering Ritsumeikan UniversityShigaJapan

Implementing a signal-switching mechanism for the selective use of integrated sensors and actuators plays a crucial role in streamlining the functionality of miniaturized ***,a liquid metal droplet(LmD)-based signal-switching mechanism is introduced to achieve such *** modulation with a 100-μm spatial resolution enabled precise control of the position of the LmDs within a *** integrating the channel with asymmetrically structured electrodes,the effect of the shuttle-like movement of LmD on the temporal changes in the overall capacitance was ***,analysis of the capacitive peaks revealed the directional movement of the LmDs,enabling estimation of the position of the LmDs without direct *** addition,we achieved successful signal extraction from the capacitive sensor that was linked to the activated electrodes,thereby enabling selective data *** proposed signal-switching mechanism method achieved a detection accuracy of~0.1 *** sensor’s ability to simultaneously detect the LmD position and generate a signal underscores its significant potential for multiplexing in multisensing systems,particularly in concealed environments,such as in vivo settings.

关键词： liquid thereby integrating

γ-Butyrolactone Synthesis from Allylic Alcohols Using the CO_(2)Radical Anion

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Precision Chemistry 2024年第3期2卷 88-95页

作者： Saeesh R.mangaonkar Hiroki Hayashi Wataru Kanna Suvankar Debbarma Yu Harabuchi satoshi maeda Tsuyoshi mita Institute for Chemical Reaction Design and Discovery(WPI-ICReDD) Hokkaido UniversitySapporoHokkaido 001-0021Japan JST ERATO Maeda Artificial Intelligence in Chemical Reaction Design and Discovery ProjectSapporoHokkaido 060-0810Japan Department of Chemistry Faculty of ScienceHokkaido UniversitySapporoHokkaido 060-0810Japan Research and Services Division of materials Data and Integrated System(maDIS) National Institute for Materials Science(NIMS)TsukubaIbaraki 305-0044Japan

γ-Butyrolactone structures are commonly found in various natural products and serve as crucial building blocks in organic ***,the development of methods for synthesizingγ-butyrolactones has garnered significant interest within the organic synthesis *** this study,we present a direct and highly efficient approach for the synthesis ofγ-butyrolactones from allylic ***,this study represents the first instance ofγ-butyrolactone synthesis initiated by radical hydrocarboxylation using CO_(2)^(•–),generated from metal formates,followed by *** two-step process is achieved through the synergistic interaction of photoredox and hydrogen atom transfer(HAT)catalysis,resulting in the production ofγ-butyrolactones with exceptional ***,when employingα,α-diaryl allylic alcohol derivatives as substrates,the reaction involves 1,2-aryl migration,which occurs concomitantly with CO_(2)^(•–)addition,leading to the formation of 4,5-substituted lactones in a good *** artificial force induced reaction(AFIR)method identified the preferred 1,2-aryl migration pathway along with potential byproduct pathways,in which the targeted 1,2-migration was found to be the most plausible pathway.

关键词： CO_(2) lactone radical photoredox visible light carboxylation calculation DFT

mitigating Iron Toxicity by Using Rock Phosphate to Improve Rice Productivity

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Agricultural Sciences 2024年第4期15卷 423-438页

作者： Adama Bagayogo Honoré Kam Jacques Sawadogo moumouni Konate moussa Sie satoshi Nakamura Fujio Nagumo mahamadou Sawadogo Ouaga I Uviversity Jospeph Ki-Zerbo Life and Earth Sciences Training and Research Unit (UFR/SVT) Ouagadougou Burkina Faso National Center for Scientific and Technological Research National Institute of Environment and Agricultural Research (INERA) Bobo-Dioulasso Burkina Faso Japan International Research Center for Agricultural Sciences Ibaraki Japan

Iron toxicity is a major constraint to rice production, particularly in highly weathered soils of inland valleys in Sub-Saharan Africa where the rice growing area is rapidly expanding. This study aimed to improve the productiveness of iron toxicity sensitive’s rice fields as well as in the unsensitive fields by using local phosphate fertilizers. Eighteen (18) rice genotypes were been assessed in a split plot design in two areas: without iron toxicity and with iron toxicity. NPK, NK, Rock Phosphate, Triple super phosphate, Calcined phosphate and Acidulated phosphate were used as fertilizers. Data collection was focused on agronomic traits and yield (g/m2). The best fertilizers in the area without iron toxicity were NPK (820.2 g/m2) and triple super phosphate (751.7 g/m2). In the iron toxicity area, the best yields were performed by NPK (785.5 g/m2) and raw calcined phosphate (698.3 g/m2). Yet, the Accessions 15, Accessions 225, Accessions 226 and Accessions 270 were rainfed rice genotypes while CC109 A, HB 46 and HB 62 were low-land/irrigated rice genotypes. NPK, NK and acidulated phosphate fertilizers alleviate the best, iron toxicity in both sensitive and unsensitive rice fields.

关键词： Oryza NPK NK Rock Phosphate Rice

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Rubber–ice friction

Friction 2023年第8期11卷 1534-1543页

作者： Toshi TADA satoshi KAWASAKI Ryouske SHImIZU Bo N.J.PERSSON Sumitomo Rubber Industries Ltd.Material Research&Development HQ.2-1-1Kobe 651-0071Japan Peter Grünberg Institute(PGI-1) Forschungszentrum JülichJülich 52425Germany multiscaleConsulting Jülich 52428Germany

We study the friction when a rectangular tire tread rubber block is sliding on an ice surface at different temperatures ranging from−38 to−2℃,and sliding speeds ranging from 3μm/s to 1 cm/*** low temperatures and low sliding speeds we propose that an important contribution to the friction force is due to slip between the ice surface and ice fragments attached to the rubber *** temperatures above−10℃ or for high enough sliding speeds,a thin premelted water film occurs on the ice surface and the contribution to the friction from shearing the area of real contact is *** this case the dominant contribution to the friction force comes from viscoelastic deformations of the rubber by the ice *** comment on the role of waxing on the friction between skis and snow(ice particles).

关键词： ice friction rubber friction ice premelting

Throughfall and stemflow chemical dynamics of Satoyama, a traditional secondary forest system under threat in Japan

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Journal of Forestry Research 2022年第3期33卷 813-826页

作者： satoshi Asaoka Fuyuhiko Sumikawa Yoshifumi Watanabe Waqar Azeem Jadoon masaki Ohno Nobumichi Shutoh Yuki Wakamatsu Lawrence m.Liao Akane Kanazawa Yuka Sato Natsumi Fujiwara Graduate School of Integrated Sciences for Life Hiroshima University1-4-4 KagamiyamaHigashi-Hiroshima739-8528Japan Research Center for Inland Seas Kobe University5-1-1 FukaeminamiHigashinadaKobe658-0022Japan Naragakuen Senior High School 430 YamadaYamatokoriyamaNara639-1093Japan Department of Environmental Sciences Faculty of Natural and Computational SciencesHazara UniversityDhodiaMansehra21130Khyber PakhtunkhwaPakistan Niigata University of Pharmacy and Applied Life Sciences 265-1 HigashijimaAkihaNiigata956-8603Japan Faculty of Science and Engineering Kindai University3-4-1 KowakaeHigashi-OsakaOsaka577-8502Japan Department of maritime Science and Technology Japan Coast Guard Academy5 WakabaKureHiroshima737-8512Japan

The term 'Satoyama' refers to traditional and unique secondary forests in Japan that occupy intermediate zones between villages ('sato') and hills or mountains ('yama'). Satoyama landscapes help sustain ecosystem services and the diversity of secondary natural environments. As Japan relies more heavily on foreign timber imports, the traditional role of Satoyama in providing forest products has diminished, and this has led to their abandonment and poor management. The chemical behavior of cations, anions, and dissolved organic matter in throughfall and stemflow from one such threatened Satoyama system in central Japan was investigated. From autumn to winter, the atmospheric deposition of sulfates and nitrates was 2.5–6.0 times higher compared to the amounts in summer due to the intrusion of air masses from the Asian continent. The dissolved organic matter in the throughfall and stemflow was composed mainly of humic substances and protein derivatives. The deposition fluxes of dissolved organic carbon from throughfall (7.31–10.1 g m^(−2) a^(−1)) and stemflow (1.79–3.84 g m^(−2) a^(−1)) in this study were within ranges seen in temperate forests in previous studies. The deposition flux of sulfates was low compared to that in other forest types because canopy interaction was lower, suggesting higher canopy openness than in primary forests. If a shift from a mixed species Satoyama forest to a conifer-dominated forest occurs after the mass mortality of oak, the deposition flux of dissolved organic carbon and K^(+) might decrease by 33% and 62%, respectively, while NO_(3)^(−) might increase by 20%. In the near future, the degradation of Satoyama landscapes might change the levels of dissolved organic carbon and nitrogen loads, resulting in imbalances in river-ocean linkages affecting forested catchments and aquatic ecosystems in Japan.

关键词： Atmospheric deposition Dissolved organic matter Humic substance mass mortality Oak trees Sustainable development goals

Lymphocyte-to-monocyte ratio is a short-term predictive marker of ulcerative colitis after induction of advanced therapy

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Gastroenterology Report 2022年第1期10卷 370-376页

作者： Natsuki Ishida Yusuke Asai Takahiro miyazu satoshi Tamura Shinya Tani mihoko Yamade moriya Iwaizumi Yasushi Hamaya satoshi Osawa Takahisa Furuta Ken Sugimoto First Department of medicine Hamamatsu University School of MedicineHamamatsuShizuokaJapan Department of Endoscopic and Photodynamic medicine Hamamatsu University School of MedicineHamamatsuShizuokaJapan Department of Laboratory medicine Hamamatsu University School of MedicineHamamatsuShizuokaJapan Center for Clinical Research Hamamatsu University School of MedicineHamamatsuShizuokaJapan

Advanced therapies for patients with mild-to-severe ulcerative colitis(UC)may result in treatment *** examined whether the lymphocyte-to-monocyte ratio(L/m ratio)could predict the failure of advanced *** retrospective,observational,cohort study included 73 patients who were treated with advanced therapies at the Hamamatsu University School of medicine(Shizuoka,Japan)between February 2011 and November *** patients were divided into the nonfailure and failure groups,and their leukocyte counts and ratios before induction were *** and multivariate analyses were performed to identify the prognostic *** therapies failed within 3 months in 15(20.5%)*** the L/m ratio was significantly lower in the failure group than in the non-failure group(P=0.004).Receiveroperating characteristic(ROC)curve analysis revealed that an L/m ratio of ≤3.417 was predictive of treatment failure;the area under the curve(AUC)was 0.747(95%CI,0.620–0.874).Kaplan–meier analysis revealed that the failure-free rate was significantly lower in the group with an L/m ratio of≤3.417 than in the group with an L/m ratio of>3.417(log-rank test P=0.002).Cox proportional hazard regression analysis identified an L/m ratio of≤3.417 as an independent risk factor for failure within 3 months after the induction of advanced ***,ROC analysis of patients who did not receive immunomodulators also revealed that the cut-off L/m ratio was 3.417 and the AUC was 0.796(95%CI,0.666–0.925).In patients receiving advanced therapies for active UC,the L/m ratio can predict treatment failure within 3 months.L/m ratios could facilitate the transition from advanced therapies to subsequent treatments.

关键词： advanced therapy failure lymphocyte-to-monocyte ratio ulcerative colitis

Surgical outcome comparisons of multifocal IOLs of Lentis Comfort LS-313 mF15 and Tecnis Eyhance DIB00V

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International Journal of Ophthalmology(English edition) 2023年第12期16卷 2004-2010页

作者： Kyohei Sugawara Ryosuke Ito Hiroshi Horiguchi Kei mizobuchi satoshi Katagiri Hisato Gunji Tadashi Nakano Comparisons of multifocal IOLs of LS-313-mF15 and DIB00V Department of Ophthalmology the Jikei University School of MedicineTokyo 105-8461Japan

AIm:To compare the surgical outcomes of a multifocal intraocular lens(IOL;Lentis Comfort LS-313 mF15)with those of an enhanced monofocal IOL(Tecnis Eyhance DIB00V).mETHODS:This retrospective study included patients who underwent cataract surgery with LS-313 mF15 or Eyhance IOL *** regarding patient demographics,surgical records,and ophthalmic examination before the cataract surgery and one and three months postoperatively were *** acuities,refractive values,defocus curves,contrast sensitivities and subjective symptoms were ***:Among the 71 eyes(47 patients)included in this study,32 eyes(20 patients)underwent LS-313 mF15 IOL implantation,and 39 eyes(27 patients)underwent Eyhance IOL *** significant differences were observed in age,axial length,or refractive error between the two groups ***,the distancecorrected and uncorrected distance visual acuities one month postoperatively did not differ between the groups,and both groups had sufficient visual acuities at the distances of 5,1 m,70,50,and 30 *** ophthalmic data,including subjective symptoms based on the 14-item Visual Function Index Questionnaire,monocular defocus curves,contrast sensitivities,and halo and glare,did not differ between the groups three months ***,both groups had good *** spherical equivalent one month postoperatively was significantly myopic in the LS-313 mF15 group compared with that in the Eyhance group(P=0.033);however,this difference was not observed three months postoperatively(P=0.471).CONCLUSION:Comparison of the surgical outcomes of LS-313 mF15 with those of Eyhance with different optical properties reveal that both IOLs show good postoperative outcomes,with no significant differences being noted between the two IOLs.

关键词： cataracts intermediate distances intraocular lens multifocal surgical outcomes

Advances in quantum dots for classical and non-classical light sources Invited Paper

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Chinese Optics Letters 2008年第10期6卷 718-723页

作者： Yasuhiko Arakawa satoshi Iwamoto satoshi Kako masahiro Nomura Denis Guimard Research Center for Advanced Science and Technology Institute for Nano Quantum Information ElectronicsThe University of Tokyo4-6-1 Meguro-ku153-8505 TokyoJapan

Recent advances in quantum dots （QDs） for classical and non-classical light sources are presented. We have established metal organic chemical vapor deposition （mOCVD） technology for InAs-based QD lasers at 1.3 μm and achieved ultralow threshold in QD lasers with photonic crystal （PhC） nanocavity. In addition, single photon emitters at 1.55 μm, GaN-based single photon sources operating at 200 K, and high-Q PhC nanocavity have been demonstrated.

关键词： QDs Advances in quantum dots for classical and non-classical light sources Invited Paper AIN InAs

Ultra-thin, planar, Babinet-inverted plasmonic metalenses

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Light(Science & Applications) 2013年第1期2卷 170-175页

作者： Xingjie Ni satoshi Ishii Alexander V Kildishev Vladimir m Shalaev School of Electrical and Computer Engineering and Birck Nanotechnology Center Purdue UniversityWest LafayetteIN 47907USA

We experimentally demonstrate the focusing of visible light with ultra-thin,planar metasurfaces made of concentrically perforated,30-nm-thick gold *** perforated nano-voids—Babinet-inverted(complementary)nano-antennas—create discrete phase shifts and form a desired wavefront of cross-polarized,scattered *** signal-to-noise ratio in our complementary nano-antenna design is at least one order of magnitude higher than in previous metallic nano-antenna *** first study our proof-of-concept‘metalens’with extremely strong focusing ability:focusing at a distance of only 2.5 mm is achieved experimentally with a 4-mm-diameter lens for light at a wavelength of 676 *** then extend our work with one of these‘metalenses’and achieve a wavelength-controllable focal *** characterization of the lens confirms that switching the incident wavelength from 676 to 476 nm changes the focal length from 7 to 10 mm,which opens up new opportunities for tuning and spatially separating light at different wavelengths within small,micrometer-scale *** the proposed designs can be embedded on-chip or at the end of an optical *** designs also all work for two orthogonal,linear polarizations of incident light.

关键词： metalens nano-antennas plasmonics wavefront shaping

Field observations of debris-flow initiation processes on sediment deposits in a previous deep-seated landslide site

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Journal of mountain Science 2016年第2期13卷 213-222页

作者： Fumitoshi ImAIZUmI satoshi TSUCHIYA Okihiro OHSAKA Department of Environment and Forest Resources Science Faculty of AgricultureShizuoka University

Although information regarding the initiation processes of debris flows is important for the development of mitigation measures,field data regarding these processes are *** conducted field observations of debris-flow initiation processes in the upper Ichinosawa catchment of the Ohya landslide,central *** 19 June 2012,our videocamera monitoring systems recorded the moment of debris-flow initiation on channel deposits(nine surges) and talus slopes(eight surges).The initiation mechanisms of these surges were classified into three types by analyzing the video images: erosion by the surface flow,movement of deposits as a mass,and upward development of the fluid *** first type was associated with the progress of surface flow from the upper stream on unsaturated channel *** second type was likely caused by an increase in the pore water pressure associated with the rising in the groundwater level in channel deposits;a continuous water supply from the upper stream by the surface flow might have induced this *** third type was associated with changes in the downstream topography caused by *** flow velocity of most surges was less than 3 m s^(-1) and they usually stopped within 100 m from the initiation *** with abundant pore fluid had a higher flow velocity(about 3- 5 m s^(-1)) and could travel for alonger *** observations indicate that the surface flow plays an important role in the initiation of debris flows on channel deposits and talus slopes.

关键词：滑坡泥石流现场观测堆积过程地下水位上升河道沉积孔隙流体泥石流滑坡视频摄像头