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Metrology for sub-Rayleigh-length target positioning in~10^(22)W/cm^(2)laser-plasma experiments

High Power Laser Science and Engineering 2024年第3期12卷 90-105页

作者： E.A.Vishnyakov A.Sagisaka k.Ogura T.Zh.Esirkepov B.Gonzalez-Izquierdo C.D.Armstrong T.A.Pikuz S.A.Pikuz W.Yan T.M.Jeong S.Singh P.Hadjisolomou O.Finke G.M.Grittani M.Nevrkla C.M.Lazzarini A.Velyhan T.Hayakawa Y.Fukuda J.k.koga M.Ishino k.kondo Y.Miyasaka A.kon M.Nishikino Y.V.Nosach D.khikhlukha I.P.Tsygvintsev D.kumar J.Nejdl D.Margarone P.V.Sasorov S.Weber M.kando H.kiriyama Y.kato G.korn k.kondo S.V.Bulanov T.kawachi A.S.Pirozhkov ELI Beamlines Facility The Extreme Light Infrastructure ERICDolníBrežanyCzech Republic kansai Institute for Photon Science(kPSI) QSTKyotoJapan Central Laser Facility Rutherford Appleton LaboratorySTFCHarwell OxfordDidcotUK Institute for Open and Transdisciplinary Research Initiatives Osaka UniversityOsakaJapan HB11 Energy Holdings FreshwaterAustralia key Laboratory for Laser Plasmas(Ministry of Education) School of Physics and AstronomyShanghai Jiao Tong UniversityShanghaiChina Collaborative Innovation Center of IFSA Shanghai Jiao Tong UniversityShanghaiChina Institute of Plasma Physics ASCR PragueCzech Republic FZU-Institute of Physics ASCR PragueCzech Republic Czech Technical University in Prague FNSPEPragueCzech Republic Institute of Laser Engineering Osaka UniversityOsakaJapan Institute of Physics National Academy of Sciences of UkraineKyivUkraine ISTEQ AR YerevanArmenia

Tight focusing with very small f-numbers is necessary to achieve the highest at-focus ***,tight focusing imposes strong demands on precise target positioning in-focus to achieve the highest on-target irradiance We describe several near-infrared,visible,ultraviolet and soft and hard X-ray diagnostics employed in a~10^(22)W/cm^(2)laser±plasma *** used nearly 10 J total energy femtosecond laser pulses focused into an approximately1.3-μm focal spot on 5±20μm thick stainless-steel *** discuss the applicability of these diagnostics to determine the best in-focus target position with approximately 5μm accuracy(i.e.,around half of the short Rayleigh length)and show that several diagnostics(in particular,3ωreflection and on-axis hard X-rays)can ensure this *** demonstrated target positioning within several micrometers from the focus,ensuring over 80%of the ideal peak laser intensity *** approach is relatively fast(it requires 10±20 laser shots)and does not rely on the coincidence of low-power and high-power focal planes.

关键词： laser-plasma interaction precise target positioning spectroscopy ultra-high intensity X-rays

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Characteristics of Nutrient Salt Uptake Associated with Water Use of Corn as a Catch Crop at Different Plant Densities in a Greenhouse

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Pedosphere 2014年第3期24卷 339-348页

作者： D.YASUTAkE C.kIYOkAWA k.kondo R.NOMIYAMA M.kITANO M.MORI S.YAMANE M.MAEDA H.NAGARE T.FUJIWARA Agriculture Unit Research and Education Faculty Kochi University The United Graduate School of Agricultural Sciences Ehime University Faculty of Agriculture Kyushu University Graduate School of Environmental and Life Science Okayama University

Dent corn, as a catch crop used for salt removal, was cultivated at different densities, i.e., 7.3 （low density）, 59.7 （normal density）, and 119.5 plants m-2 （high density）, during a 50 d fallow period after cultivation of a commercial crop in a greenhouse, to analyze the characteristics of nutrient salt （N, k, Mg, and Ca） uptake by roots and to study the effect of plant density on the characteristics associated with crop water use. Leaf area index for the high and normal density treatments reached extremely high values of 24.3 and 14.9, respectively. These values induced higher transpiration rates that were estimated using the Penman-Monteith model with the incorporation of specific parameters for crop and greenhouse conditions. The total N, k, Mg, and Ca contents in the crop canopy at harvest were 26.8, 13.0, 1.0, and 1.7 g m-S, respectively, under the high density treatment. The dynamics of salt uptake rates for high, normal, and low density treatments were evaluated by assessing weekly changes in salt content, and were subsequently compared against the transpiration rate. A positive linear relationship was obtained between these 2 parameters for all 3 density treatments and all tested salts. Hence, higher transpiration rates caused higher salt uptake rates through water absorption. On the other hand, salt uptake efficiency per unit water use by cultivation was lower in the low density treatment. Therefore, management procedures with dense planting that induce higher transpiration rates and lower evaporation rate are extremely important for the effective cultivation of corn catch crops.

关键词： evapotranspiration root uptake salt removal transpiration

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Application of coincidence Doppler broadening spectroscopy to some liquids and gamma-irradiated polymers

Application of coincidence Doppler broadening spectroscopy t...

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第九届全国正电子谱学会议

作者： T.Suzuki Yasuo Ito N.Djourelov k.kondo V.P.Shantarovich Radiation Science Center High Energy Accelerator Research Organization(KEK)1-1 OhoTsukubaIbaraki 305-0801Japan

Recently, a new positron annihilation technique, coincidence Doppler broadening (CDB) spectroscopy, has appeared as a chemical probe in positron spectroscopy. Compared with the traditional Doppler broadening measurement using a single Ge detector, the combined use of two Ge detectors improves the energy resolution of thewhole system by a factor of (?);meanwhile, the peak-to-background ratio of the measured CDB spectra is significantly improved from -200 to 106. This enables one to identify positron annihilation with high momentum electrons belonging to certain element like oxygen. Based on this principle, we successfully investigated the effect

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实用汽车零件净形锻造技术

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锻造与冲压 2006年第2期 88-90页

作者： k.kondo 吴源(编译)

全球汽车制造业的高速发展对汽车零部件的生产提出了高质、低耗、环保的新要求。汽车零部件制造中心转移到发展中国家也许是一种解决办法。然而，净形锻造则是满足这些需求的根本的解决途径。

关键词：锻造技术汽车零件汽车零部件汽车制造业发展中国家净形锻造

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半固态锻造：锻造工业的新机遇

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锻造与冲压 2006年第2期 77-79页

作者： k.kondo 吴源(编译)

半固态特性是20世纪70年代Eb法国的Fleemings在金属合金中发现的。经过三十多年的有关半固态加工的研究，工业生产中已经使用低熔点材料进行半固态加工。

关键词：半固态加工锻造工业 20世纪70年代金属合金工业生产低熔点

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Relativistic Electron Generation and Its Behaviors Relevant to Fast Ignition

Relativistic Electron Generation and Its Behaviors Relevant ...

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2006年全国强场激光物理会议

作者： k.A.Tanaka H.Habara R.kodama k.kondo G.R.kumar k.Mima T.Tanimoto T.Yabuuchi Institute of Laser Engineering Osaka University2-6 Yamada-okaSuitaOsaka 565-0871 Japan Institute of Laser Engineering Osaka University2-6 Yamada-okaSuitaOsaka 565-0871 Japan Institute of Laser Engineering Osaka University2-6 Yamada-okaSuitaOsaka 565-0871 Japan Institute of Laser Engineering Osaka University2-6 Yamada-okaSuitaOsaka 565-0871 Japan Institute of Laser Engineering Osaka University2-6 Yamada-okaSuitaOsaka 565-0871 Japan Institute of Laser Engineering Osaka University2-6 Yamada-okaSuitaOsaka 565-0871 Japan Institute of Laser Engineering Osaka University2-6 Yamada-okaSuitaOsaka 565-0871 Japan Institute of Laser Engineering Osaka University2-6 Yamada-okaSuitaOsaka 565-0871 Japan

＜正＞Ultra-intense laser（UIL）has been used to create relativistic hot electrons in order to study the behaviors relevant to fast *** electrons generated at an oblique UIL incidence shows their transport along the target surface consistent with strong B field responsible with the *** foam was used to enhance the production of hot electrons via UIL irradiation on a target.

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Plasma Confinement Characteristics in Heliotron J——Spontaneous Change of Plasma Confinement State

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Plasma Science and Technology 2004年第4期6卷 2371-2376页

作者： T.Mizuuchi H.Okada k.Nagasaki S.kobayashi S.Yamamoto F.Sano k.kondo k.Hanatani M.Nakasuga Y.Nakamura Y.Suzuki Y.Manabe H.Shidara H.kawazome M.kaneko Y.Nishioka Y.Ohno T.Takamiya H.Yukimoto Y.Fukagawa Y.Morita S.Nakazawa S.Nishio k.Takahashi S.Tuboi M.Yamada k.Ohashi Y.Ijiri T.Senju k.Yaguchi k.Sakamoto k.Tohshi M.Shibano T.Obiki Institute of Advanced Energy Kyoto UniversityUji 611-0011Japan Graduate School of Energy Science Kyoto UniversityUji 611-0011Japan

Spontaneous transition of the plasma confinement mode was observed in thehelical-axis heliotron device 'Heliotron J' for three different plasma heating schemes, ***-only, NBI-only and the combination of ECH and NBI. The transition seems to occur above a certaincritical density. In addition to the confinement transition, a spontaneous shift of the hittingposition of the divertor plasma flux on the wall was observed. This shift could be related with thechange of the edge field topology caused by non-inductive toroidal currents.

关键词： heliotron J plasma confinement transition phenomena

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精锻研究过程的回顾

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国外金属加工 2004年第1期25卷 1-4页

作者： k.kondo 陈善民李新龙胡亚民柳莉谭险峰不详重庆工学院车辆工程学院，重庆400050

本文论述了三种精锻工艺过程即对向模具精冲、带法兰空心件净形加工和分流法的基本机理及其特征要点。同时对生产实践和实验过程中出现的异常现象仔细观察后形成的重要概念作了阐述。

关键词：精锻对向模具精冲净形加工分流法空心件

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多伞盘式绝缘子的污秽特性

多伞盘式绝缘子的污秽特性

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电工陶瓷第七次学术年会暨学术交流会

作者：周建国肖嵘 Y.Suzwki S.Ito M.akizuki k.kondo 华东电力试验研究院华东电力试验研究院日本碍子公司日本碍子公司日本碍子公司日本碍子公司

介绍了在工业污秽地区绝缘子伞型对积污的影响,其中以钟罩、双伞及三伞绝缘子的自然积污结果,证明在相同环境下,积污特性主要取决于绝缘子的形状。研究开发的循环积尘模拟试验方法也方便地验证了伞型对积污影响的结果。人工污秽试验数... 详细信息

介绍了在工业污秽地区绝缘子伞型对积污的影响,其中以钟罩、双伞及三伞绝缘子的自然积污结果,证明在相同环境下,积污特性主要取决于绝缘子的形状。研究开发的循环积尘模拟试验方法也方便地验证了伞型对积污影响的结果。人工污秽试验数据显示源于双伞的三伞绝缘子具有较优的防污耐污性能。

关键词：外伞型绝缘子自然积污试验积污特性耐受电压

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External defects and severity level evaluation of potato using single and multispectral imaging in near infrared region Author links open overlay panel

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Information Processing in Agriculture 2024年第1期11卷 80-90页

作者： Dimas Firmanda Al Riza Slamet Widodo kazuya Yamamoto kazunori Ninomiya Tetsuhito Suzuki Yuichi Ogawa Naoshi kondo Laboratory of Biosensing Engineering Graduate School of AgricultureKyoto UniversityKitashirakawaKyoto 6068267Japan Department of Biosystems Engineering Faculty of Agricultural TechnologyUniversitas BrawijayaJl.VeteranMalang 65145Indonesia Department of Mechanical and Biosystem Engineering Bogor Agricultural UniversityJl.Raya Darmaga Kampus IPB DarmagaBogor 16680Indonesia Technology Development Department Shibuya Seiki Co.Ltd.66Takaoka-choMatsuyamaEhime 7918036Japan

Non-invasive potato defects detection has been demanded for sorting and grading *** on the classification of the defects has been available,however,investigation on the severity level calculation is *** the detection of the common scab,it has been found that imaging in the infrared region provide an interesting characteristic that could distinguish defected area to normal ***,investigations on this wavelength range is interesting to add more knowledge and for *** this research,the multispectral image has been obtained and investigated especially at three wavelengths(950,1150,1600 nm).Image pre-processing and pseudo-color conversion techniques were explored to enhance the contrast between defects,normal background skin area and soil *** show that external defects,such as common scab and some mechanical damage types,appear brighter in the near infrared region,especially at 1600 nm against the normal skin *** has been found that pseudo-color images conversion provides more information regarding type if surface characteristics compared to grayscale single *** segmentation using pseudo-color images after multiplication operation pre-processing could be used for common scab and mechanical damage detection excluding soil deposits with a Dice Sorensen coefficient of *** addition,image segmentation using single image at 1600 nm shown relatively better results with Dice Sorensen coefficient of 0.72 with note that thick soil deposits will also be *** severity level evaluation had an R2 correlation of 0.84 against standard measurements of severity.

关键词： Multispectral imaging Pseudo-color Common scab External defects Near infrared

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