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Journal Articles

High-speed classification of coherent X-ray diffraction Patterns on the K computer for high-resolution single biomolecule imaging

Tokuhisa, Atsushi*; Arai, Junya*; Jochi, Yasumasa*; Ono, Yoshiyuki*; Kameyama, Toyohisa*; Yamamoto, Keiji*; Hatanaka, Masayuki*; Gerofi, B.*; Shimada, Akio*; Kurokawa, Motoyoshi*; et al.

Journal of Synchrotron Radiation, 20(6), p.899 - 904, 2013/11

 Times Cited Count:5 Percentile:29.23(Instruments & Instrumentation)

Journal Articles

Compact XFEL and AMO sciences; SACLA and SCSS

Yabashi, Makina*; Tanaka, Hitoshi*; Tanaka, Takashi*; Tomizawa, Hiromitsu*; Togashi, Tadashi*; Nagasono, Mitsuru*; Ishikawa, Tetsuya*; Harries, J.; Hikosaka, Yasumasa*; Hishikawa, Akiyoshi*; et al.

Journal of Physics B; Atomic, Molecular and Optical Physics, 46(16), p.164001_1 - 164001_19, 2013/08

 Times Cited Count:71 Percentile:95.16(Optics)

Journal Articles

Isolation and characterization of the fragrant cyclamen ${it O}$-methyltransferase involved in flower coloration

Akita, Yusuke; Kitamura, Satoshi; Hase, Yoshihiro; Narumi, Issei; Ishizaka, Hiroshi*; Kondo, Emiko*; Kameari, Naoko*; Nakayama, Masayoshi*; Tanikawa, Natsu*; Morita, Yasumasa*; et al.

Planta, 234(6), p.1127 - 1136, 2011/12

 Times Cited Count:41 Percentile:75.95(Plant Sciences)

Journal Articles

Red-purple flower due to delphinidin 3,5-diglucoside, a novel pigment for ${it Cyclamen}$ spp., generated by ion-beam irraidation

Kondo, Emiko*; Nakayama, Masayoshi*; Kameari, Naoko*; Tanikawa, Natsu*; Morita, Yasumasa*; Akita, Yusuke; Hase, Yoshihiro; Tanaka, Atsushi; Ishizaka, Hiroshi*

JAEA-Review 2010-065, JAEA Takasaki Annual Report 2009, P. 65, 2011/01

no abstracts in English

Journal Articles

Red-purple flower due to delphinidin 3,5-diglucosides, a novel pigment for ${it Cyclamen}$ spp., generated by ion-beam irradiation

Kondo, Emiko*; Nakayama, Masayoshi*; Kameari, Naoko*; Tanikawa, Natsu*; Morita, Yasumasa*; Akita, Yusuke; Hase, Yoshihiro; Tanaka, Atsushi; Ishizaka, Hiroshi*

Plant Biotechnology, 26(5), p.565 - 569, 2009/01

 Times Cited Count:33 Percentile:66.84(Biotechnology & Applied Microbiology)

Fragrant cyclamen cultivar (${it C. persicum}$ $$times$$ ${it C. purpurascens}$), that bloomed purple flower containing malvidin 3,5-diglucoside as the major anthocyanin, was irradiated with a 320-MeV carbon-ion beam at 0-16 Gy to increase flower color variation by mutation. Some of the M2 plants derived from self-pollination of M1 plants irradiated at 2 Gy were flower-color mutants that retained desirable flower shape, flower size, and leaf color. One of the mutants bloomed novel red-purple flowers, the major anthocyanin of which was delphinidin 3,5-diglucoside. Because the major anthocyanins in flowers of ${it Cyclamen}$ spp. were previously restricted to malvidin, peonidin, and cyanidin types, the generation of a cyclamen containing mostly the delphinidin-type anthocyanin is an important breakthrough in cyclamen breeding. We expect this mutant to become not only a commercial cultivar itself, but also a valuable genetic resource for cyclamen breeding.

JAEA Reports

Study of extracted complexes in TRUEX process by nuclear magnetic resonance

Sano, Yuichi; Karino, Junichi*; Koyama, Tomozo; Tanaka, Yasumasa

PNC TN8410 98-053, 67 Pages, 1998/03

PNC-TN8410-98-053.pdf:1.33MB

The coordination properties of extracted HNO$$_{3}$$ and lanthanide (Ln) complexes in TRUEX process were studied by NMR (nuclear magnetic resonance) measurements. The main results are shown as follows; (1)In the HNO$$_{3}$$ extraction with TRUEX solvent, coordination manner of CMPO to HNO$$_{3}$$ changes with the HNO$$_{3}$$ concentration in the aqueous phase. (2)The mole ratio of coordinated ligands (TBP and CMPO) to free ligands in the heavy organic phase (third phase), which was generated from the TRUEX solvents after extracting HNO$$_{3}$$, is larger than that in the light organic phase. (3)In the Ln extraction with TRUEX solvents, only CMPO coordinates to the lanthanide ion, and TBP doesn't exist within the first coordination sphere. (4)The eontribution of CMPO carbonyl to the Ln extraction will become larger with the extraction of HNO$$_{3}$$. (5)The CMPO coordinates to Ln in the bidentate manner, which is independent of Ln elements and the phase separation. (6)About the CMPO exchange reaction in the extracted Ln complexes, the following results were obtained ; (a)The activation parameters (exchange rate constants, activation enthalpy and activation entropy) decrease with the increase of atomic number of extracted Ln, which may be caused by the interaction with TBP in the outer sphere. (b)The exchange rate constants in the heavy organic phase are larger than that in the light organic phase.

Journal Articles

$$gamma$$-ray irradiation effect on corrosion rates of stsinless steel in boilingnitric acid containi

; Nagai, Takayuki; Takeda, Seiichiro; Tanaka, Yasumasa

Journal of Nuclear Science and Technology, 35(5), p.353 - 356, 1998/00

None

Journal Articles

Gamma-ray Irradiation Effects on Corrosion Rates of Stainless Steel in Boiling Nitric Acid Containing Ionic Additives

; Nagai, Takayuki; Takeda, Seiichiro; Tanaka, Yasumasa

Journal of Nuclear Science and Technology, 35(5), p.353 - 356, 1998/00

 Times Cited Count:12 Percentile:66.43(Nuclear Science & Technology)

None

JAEA Reports

None

Koma, Yoshikazu; Shibata, Atsuhiro; Koyama, Tomozo; Tanaka, Yasumasa; Yamana, Hajimu*

PNC TN8410 97-068, 46 Pages, 1997/03

PNC-TN8410-97-068.pdf:1.46MB

None

JAEA Reports

None

Shiba, Masanori*; *; *; Tanaka, Yasumasa

PNC TN8410 97-423, 46 Pages, 1997/01

PNC-TN8410-97-423.pdf:1.68MB

None

Journal Articles

Back-end electrochemical procedures for waste minimizing in advanced actinide separation system

Ozawa, Masaki; Tanaka, Yasumasa; Ohara, Chisako*; Tanuma, Hiroyuki*

Proceedings of International Conference on Future Nuclear Systems (GLOBAL'97), p.1232 - 1237, 1997/00

None

Journal Articles

Trivalent Minor Actinides (Am, Cm)/Lanthanides Separation, Using Organothiophosphinic Acids

Ozawa, Masaki; Tanaka, Yasumasa; Baron, P.*

Proceedings of International Conference on Future Nuclear Systems (GLOBAL'97), 0 Pages, 1997/00

None

JAEA Reports

Study of lanthanide (III) nitrate complexes in CMPO/TBP systems by nuclear magnetic resonance (II)

Sano, Yuichi; *; ; *; Koyama, Tomozo; Tanaka, Yasumasa

PNC TN8410 96-362, 19 Pages, 1996/10

PNC-TN8410-96-362.pdf:2.27MB

The coordination properties of the lanthanide (La, Ce, Pr, Nd, Sm and Eu) complexes in lanthanide/TBP (tributylphosphate), lanthanide/CMPO (octyl(phenyl)-N,N-diisobutycarbamoylmethylphosphine oxide) and lanthanide/CMPO/TBP systems were investigated by NMR (nuclear magnetic resonance) measurements. In the lanthanide/CMPO/TBP system, it is shown that the structure of lanthanide complex is changed by the concentration ratio for added CMPO to the lanthanide ion ; lanthanide/CMPO/TBP system ([CMPO]/[Ln] $$<$$ 3 (mole ratio)) NO$$_{3}$$ - the similar coordination in the Ln/TBP system TBP, CMPO - These coordinate to the lanthanide ion together. (the existence of several complexes) lanthanide/CMPO/TBP system ([CMPO]/[Ln} $$>$$ 3(mole ratio)) NO$$_{3}$$ - the same coordination in the Ln/CMPO system TBP, CMPO - Only CMPO coordinates to the lanthanide ion. TBP doesn't exist within the first coordination sphere, but affects the CMPO exchange reaction.

JAEA Reports

None

Koma, Yoshikazu; Watanabe, Masayuki; Nemoto, Shinichi; Ozawa, Masaki; Okamoto, Fumitoshi; Tanaka, Yasumasa

PNC TN8410 95-193, 49 Pages, 1995/06

PNC-TN8410-95-193.pdf:0.8MB

None

JAEA Reports

Basic studies about CMPO, Diamide comparison; Properties of Ln(III) extraction and behavior of third phase formation

Shibata, Atsuhiro; P.Y.COR*; *; ; ; *; Tanaka, Yasumasa

PNC TN8410 95-112, 100 Pages, 1995/05

PNC-TN8410-95-112.pdf:3.69MB

PNC has developed the TRUEX process to recover transuranium elements from high level liquid waste. This process uses CMPO as extracting solvent. DIAMEX process which uses Diamide has been developed bY CEA in France. The aim of basic studies was to get some comparison data between CMPO and Diamide. We have conducted the experiments regarding properties of Ln(III) extraction and behavior of third phase formation. Also, we have investigated properties of Ln(III) extraction with TBP and DBBP to compare bidentate ligand with monodentate ligand. This study was conducted as a frame of PNC/CEA collaboration on minor Actinide partitioning. The conclusions drawn from our studies can be summarized as follows; (1)Trivalent Lanthanides extraction reaction. CMPO, TBP and DBBP ; Ln$$^{3-}$$ + 3NO$$_{3}^{-}$$ + 3Extractant $$leftrightarrow$$ Ln(NO$$_{3}$$)$$_{3}cdot$$ 3Extractant. Diamide; Ln$$^{3-}$$ + 3NO$$_{3}^{-}$$ + m Diamide $$leftrightarrow$$ Ln(NO$$_{3}$$)$$_{3}$$ $$cdot$$ m Diamide : m=O.7$$sim$$1.8. (2)Extraction equilibrium constant. Apparent extraction equilibrium constants were calculated from the trivalent Lanthanides extraction reaction. The value of the constants were CMPO $$>$$ Diamide $$>>$$ DBBP $$>$$ TBP.CMPO has high extraction efficiency for trivalent metals such as Am, but the back extraction is difficult in nitric acid media. Diamide indicated better behavior about both extraction and back extraction. (3)Separation Factors. We got separation factors (SFs) for intra-group in nitric acid. So SFs for CMPO and Diamide were nearly one, that these solvents could not separate each Lanthanides elements. The other hand, SFs for TBP and DBBP were 2 $$sim$$ 10. (4)Behavior of third phase formation. When using CMPO or Diamide, even in the case of extraction of nitric acid, third phase formation was found. When third phase was formed, the nitric acid concentration in aqueous phase was 6 N for CMPO, 4 N for Diamide. If Diamide diluted with Decaline was used, third phase wasn't found ...

Journal Articles

Development of remote dismantling and removal of large components in Reprocessing Plant

Ishibashi, Yuzo; Kawata, Tomio; Tanaka, Yasumasa; ;

Proceedings of 3rd International Conference on Nuclear Engineering (ICONE-3), p.0 - 0, 1995/00

None

JAEA Reports

None

Tateishi, Yoshinori*; Tanaka, Yasumasa; *; *; Goto, Tatsuro*; *; *

PNC TN841 84-66, 197 Pages, 1983/08

PNC-TN841-84-66.pdf:8.98MB

no abstracts in English

JAEA Reports

Evaluation of Strength of Fuel Assembly Materials for the Prototype FBR "Monju" (1) Tensile Properties of Fuel Cladding Tube

Miura, Makoto; Omori, Takuro; Sawayama, Yukio; Shiina, Sadamu; Tanaka, Yasumasa

PNC TN841 79-23, 77 Pages, 1979/03

PNC-TN841-79-23.pdf:3.08MB

no abstracts in English

JAEA Reports

None

Miura, Makoto; ; ; Omori, Takuro; ; Tanaka, Yasumasa; Shiina, Sadamu; Ogasawara, Koji

PNC TN841 79-12, 103 Pages, 1979/03

PNC-TN841-79-12.pdf:4.84MB

no abstracts in English

JAEA Reports

None

Miura, Makoto; Honda, Yutaka*; Omori, Takuro; Kaneko, Hiromitsu; ; Yato, Tadao*; Tanaka, Yasumasa; Konashi, Kenji

PNC TN841 79-11, 118 Pages, 1979/02

PNC-TN841-79-11.pdf:10.71MB

no abstracts in English

48 (Records 1-20 displayed on this page)