Refine your search:     
Report No.
 - 
Search Results: Records 1-20 displayed on this page of 29

Presentation/Publication Type

Initialising ...

Refine

Journal/Book Title

Initialising ...

Meeting title

Initialising ...

First Author

Initialising ...

Keyword

Initialising ...

Language

Initialising ...

Publication Year

Initialising ...

Held year of conference

Initialising ...

Save select records

Journal Articles

Slow magnetic relaxation of linear trinuclear M(II)-Gd(III)-M(II) complexes with $$D_{3}$$ point group symmetry (M(II) = Zn(II) and Mg(II))

Masuda, Yuka*; Sakata, Shiomi*; Kayahara, Saori*; Irie, Natsumi*; Kofu, Maiko; Kono, Yohei*; Sakakibara, Toshiro*; Horii, Yoji*; Kajiwara, Takashi*

Journal of Physical Chemistry C, 127(6), p.3295 - 3306, 2023/02

JAEA Reports

Development of the desalting method for gross alpha activity determination (Contract research)

Koike, Yuko; Yamada, Ryohei; Nagaoka, Mika; Nakano, Masanao; Ono, Yosuke; Suitsu, Yuichi

JAEA-Technology 2021-011, 39 Pages, 2021/08

JAEA-Technology-2021-011.pdf:1.56MB

In the Analyzed Liquid Treatment Facility of Japan Nuclear Fuel Co., Ltd. (JNFL) MOX Fuel Fabrication Plant (J-MOX), the interfere by salts with the analysis of gross alpha activity concentration analysis will be caused during the treatment process. Therefore, JNFL devised the desalting method using a solid-phase extraction chromatography. Japan Atomic Energy Agency carried out the experimental study to confirm the validity of this desalting method for the treatment liquid based on the contract with JNFL. This study consists of three experiments as follows: Step 1 - Selection of an optical solid-phase extraction agent, Step 2 - Evaluation of variation optical solid-phase extraction agent, and Step 3 - Application of the imitation liquid waste. The result of Step 1 determined the solid-phase extraction agent (InertSep ME-2) and the optimum condition (aspiration method by manifold (about 5-10 mL/min), 3M nitric acid as eluent, pH: 5, and no adjustment of ionic valence). Then, the result of Step 2 and 3 made sure the validation of this method by obtaining over 70% recovery for the imitation liquid waste sample of the Analyzed Liquid Treatment Facility of J-MOX.

Journal Articles

Report on social communication activities of Young Researchers Association and Students Association of JHPS; Chiba-shi Science Festa

Yamada, Ryohei; Kono, Takahiko; Nakajima, Junya; Hirouchi, Jun; Tsuji, Tomoya; Umeda, Masayuki; Igarashi, Yu*; Koike, Hiromi*

Hoken Butsuri (Internet), 56(1), p.32 - 38, 2021/03

no abstracts in English

Journal Articles

Morphological reproductive characteristics of testes and fertilization capacity of cryopreserved sperm after the Fukushima accident in raccoon (${it Procyon lotor}$)

Komatsu, Kazuki*; Iwasaki, Tsugumi*; Murata, Kosuke*; Yamashiro, Hideaki*; Goh, V. S. T.*; Nakayama, Ryo*; Fujishima, Yohei*; Ono, Takumi*; Kino, Yasushi*; Shimizu, Yoshinaka*; et al.

Reproduction in Domestic Animals, 56(3), p.484 - 497, 2021/03

 Times Cited Count:9 Percentile:90.55(Agriculture, Dairy & Animal Science)

We have established an archive system of livestock and wild animals from the surrounding ex-evacuation zone. Wildlife within the alert zone have been exposed to low-dose-rate (LDR) radiation for a long and continuous time. In this study, we analysed the morphological characteristics of the testes and in vitro fertilization (IVF) capacity of cryopreserved sperm of raccoons from the ex-evacuation zone of the FDNPP accident. This study revealed that the chronic and LDR radiation exposure associated with the FDNPP accident had no adverse effect on the reproductive characteristics and functions of male raccoons.

Journal Articles

Enhancement of element production by incomplete fusion reaction with weakly bound deuteron

Wang, H.*; Otsu, Hideaki*; Chiga, Nobuyuki*; Kawase, Shoichiro*; Takeuchi, Satoshi*; Sumikama, Toshiyuki*; Koyama, Shumpei*; Sakurai, Hiroyoshi*; Watanabe, Yukinobu*; Nakayama, Shinsuke; et al.

Communications Physics (Internet), 2(1), p.78_1 - 78_6, 2019/07

 Times Cited Count:7 Percentile:54.31(Physics, Multidisciplinary)

Searching for effective pathways for the production of proton- and neutron-rich isotopes through an optimal combination of reaction mechanism and energy is one of the main driving forces behind experimental and theoretical nuclear reaction studies as well as for practical applications in nuclear transmutation of radioactive waste. We report on a study on incomplete fusion induced by deuteron, which contains one proton and one neutron with a weak binding energy and is easily broken up. This reaction study was achieved by measuring directly the cross sections for both proton and deuteron for $$^{107}$$Pd at 50 MeV/u via inverse kinematics technique. The results provide direct experimental evidence for the onset of a cross-section enhancement at high energy, indicating the potential of incomplete fusion induced by loosely-bound nuclei for creating proton-rich isotopes and nuclear transmutation of radioactive waste.

Journal Articles

Magnetization study on the Ising ferromagnet URhGe with high-precision angle-resolved magnetic field near the hard axis

Nakamura, Shota*; Sakakibara, Toshiro*; Shimizu, Yusei*; Kittaka, Shunichiro*; Kono, Yohei*; Haga, Yoshinori; Pospisil, J.; Yamamoto, Etsuji

Progress in Nuclear Science and Technology (Internet), 5, p.123 - 127, 2018/11

Journal Articles

Generation new ornamental plant varieties using ion beams

Affrida, A. H.*; Zaiton, A.*; Salahbiah, A. M.*; Shakinah, S.*; Yoshihara, Ryohei; Narumi, Issei; Hase, Yoshihiro; Ono, Yutaka

JAEA-Review 2010-065, JAEA Takasaki Annual Report 2009, P. 62, 2011/01

Journal Articles

Development of new Gunma original variety of chrysanthemum by ion beam irradiation

Okada, Tomoyuki*; Ikeda, Hiroshi*; Ono, Yutaka; Yoshihara, Ryohei; Hase, Yoshihiro; Narumi, Issei

JAEA-Review 2010-065, JAEA Takasaki Annual Report 2009, P. 63, 2011/01

no abstracts in English

Journal Articles

Feasible evaluation of neutron capture therapy for hepatocellular carcinoma using selective enhancement of boron accumulation in tumour with intra-arterial administration of boron-entrapped water-in-oil-in-water emulsion

Yanagie, Hironobu*; Kumada, Hiroaki*; Nakamura, Takemi; Higashi, Shushi*; Ikushima, Ichiro*; Morishita, Yasuyuki*; Shinohara, Atsuko*; Fujiwara, Mitsuteru*; Suzuki, Minoru*; Sakurai, Yoshinori*; et al.

Proceedings of 14th International Congress on Neutron Capture Therapy (ICNCT-14) (CD-ROM), p.157 - 160, 2010/10

Journal Articles

Anisotropic and inhomogeneous magnetic interactions observed in all-organic nitroxide radical liquid crystals

Uchida, Yoshiaki*; Suzuki, Katsuaki*; Tamura, Rui*; Ikuma, Naohiko*; Shimono, Satoshi*; Noda, Yohei; Yamauchi, Jun*

Journal of the American Chemical Society, 132(28), p.9746 - 9752, 2010/06

 Times Cited Count:51 Percentile:75.71(Chemistry, Multidisciplinary)

An anisotropic and inhomogeneous magnetic interaction (the average spin-spin interaction constant, $$bar{rm J}$$ $$>$$ 0) was observed in the various liquid crystalline (LC) phases of racemic and nonracemic all-organic radical LC compounds. We discussed how the LC superstructures induced the magnetic interaction to operate in the LC phases in terms of spin-spin dipole and exchange interactions by means of VT-EPR spectroscopy. The magnitude of the magnetic interaction depended on the type of LC phase, or the superstructure. Furthermore, these radical LC droplets floating on water were commonly attracted to a permanent magnet and moved freely under the influence of this magnet, whereas the crystallized particles of the same compounds never responded to the magnet. The response of the LC droplets to the magnet also varied depending on the type of LC phase, that is, the extent of the magnetic interaction.

Journal Articles

Generating new ornamental plant varieties using ion beams

Affrida, A. H.*; Shakinah, S.*; Zaiton, A.*; Yoshihara, Ryohei; Narumi, Issei; Hase, Yoshihiro; Ono, Yutaka

JAEA-Review 2009-041, JAEA Takasaki Annual Report 2008, P. 70, 2009/12

Journal Articles

Screening of higher astaxanthin producing mutants of a green unicellular alga ${it Haematococcus pluvialis}$ at elevated acetate concentrations by ion beam irradiation

Kakizono, Toshihide*; Omichi, Daisuke*; Yoshihara, Ryohei; Hase, Yoshihiro; Narumi, Issei

JAEA-Review 2008-055, JAEA Takasaki Annual Report 2007, P. 73, 2008/11

no abstracts in English

Journal Articles

Unusual intermolecular magnetic interaction observed in an all-organic radical liquid crystal

Uchida, Yoshiaki*; Ikuma, Naohiko*; Tamura, Rui*; Shimono, Satoshi*; Noda, Yohei; Yamauchi, Jun*; Aoki, Yoshio*; Nohira, Hiroyuki*

Journal of Materials Chemistry, 18(25), p.2950 - 2952, 2008/07

 Times Cited Count:43 Percentile:76.09(Chemistry, Physical)

We found out an unusual intermolecular magnetic interaction in the liquid-crystalline (LC) state of an all-organic radical compound on surface of water (73 $$^{circ}$$C); the magnetic interaction actually allows the LC droplet on water to be attracted by a weak permanent magnet, whereas the crystalline phase did not respond to the magnet.

Journal Articles

Progress in R&D efforts on the energy recovery linac in Japan

Sakanaka, Shogo*; Ago, Tomonori*; Enomoto, Atsushi*; Fukuda, Shigeki*; Furukawa, Kazuro*; Furuya, Takaaki*; Haga, Kaiichi*; Harada, Kentaro*; Hiramatsu, Shigenori*; Honda, Toru*; et al.

Proceedings of 11th European Particle Accelerator Conference (EPAC '08) (CD-ROM), p.205 - 207, 2008/06

Future synchrotron light sources based on the energy-recovery linacs (ERLs) are expected to be capable of producing super-brilliant and/or ultra-short pulses of synchrotron radiation. Our Japanese collaboration team is making efforts for realizing an ERL-based hard X-ray source. We report recent progress in our R&D efforts.

Journal Articles

Genetic dissection of hormonal responses in the roots of arabidopsis grown under continuous mechanical impedance

Okamoto, Takashi*; Tsurumi, Seiji*; Shibasaki, Kyohei*; Obana, Yoshimi*; Takaji, Hironori*; Ono, Yutaka; Rahman, A.*

Plant Physiology, 146(4), p.1651 - 1662, 2008/04

 Times Cited Count:43 Percentile:74.38(Plant Sciences)

The Arabidopsis seedlings grown horizontally on a dialysis membrane-covered agar plate encountered adequate mechanical impedance as the roots showed characteristic ethylene phenotypes: 2-fold reduction in root growth, increase in root diameter, decrease in cell elongation, and ectopic root hair formation. The root phenotype characterization of various mutants having altered response to ethylene biosynthesis or signaling, the effect of ethylene inhibitors on mechanically impeded roots, and transcription profiling of the ethylene-responsive genes led us to conclude that enhanced ethylene response plays a primary role in changing root morphology and development during mechanical impedance. Further, the differential sensitivity of horizontally and vertically grown roots toward exogenous ethylene suggested that ethylene signaling plays a critical role in enhancing the ethylene response. We subsequently demonstrated that the enhanced ethylene response also affects the auxin response in roots. Taken together, our results provide a new insight into the role of ethylene in changing root morphology during mechanical impedance.

Journal Articles

Screening of higher astaxanthin producing mutants of a green unicellular alga ${it Haematococcus pluvialis}$ by ion beam irradiation

Kakizono, Toshihide*; Sugiura, Toshihiro*; Yoshihara, Ryohei; Hase, Yoshihiro; Narumi, Issei; Tanaka, Atsushi

JAEA-Review 2007-060, JAEA Takasaki Annual Report 2006, P. 91, 2008/03

no abstracts in English

Journal Articles

Measurement of the spin and magnetic moment of $$^{23}$$Al

Ozawa, Akira*; Matsuta, Kensaku*; Nagatomo, Takashi*; Mihara, Mototsugu*; Yamada, Kazunari*; Yamaguchi, Takayuki*; Otsubo, Takashi*; Momota, Sadao*; Izumikawa, Takuji*; Sumikama, Toshiyuki*; et al.

Physical Review C, 74(2), p.021301_1 - 021301_4, 2006/08

 Times Cited Count:41 Percentile:89.05(Physics, Nuclear)

no abstracts in English

Journal Articles

Magnetic structure and the hall resistivity of Cu$$_{1-x}$$Zn$$_{x}$$Cr$$_{2}$$Se$$_{4}$$

Iikubo, Satoshi*; Yasui, Yukio*; Oda, Keisuke*; Ono, Yohei*; Kobayashi, Yoshiaki*; Sato, Masatoshi*; Kakurai, Kazuhisa

Journal of the Physical Society of Japan, 71(11), p.2792 - 2799, 2002/11

 Times Cited Count:11 Percentile:57.06(Physics, Multidisciplinary)

no abstracts in English

Oral presentation

Molecular orientation of chiral paramagnetic liquid crystals under electric and/or magnetic fields

Noda, Yohei; Koizumi, Satoshi; Hashimoto, Takeji; Shimono, Satoshi*; Baba, Masaaki*; Yamauchi, Jun*; Ikuma, Naohiko*; Uchida, Yoshiaki*; Tamura, Rui*; Iima, Yoshio*

no journal, , 

Recently, the chiral paramagnetic liquid crystals (LCs) were synthesized, whose spin sources are fixed in their rigid core. Their responses to an electric and magnetic fields are attractive topics. In general, LC molecules align with the rubbing direction on the oriented film of the LC cell. By far, by use of this surface stabilization effect on LC cell surface, we have developed this potential method of the EPR measurement with rotating the oriented LC cell sample. More recently, the chiral paramagnetic LC showing ferroelectricity was synthesized. We will report the EPR investigation of the orientation change of the ferroelectric LC in response to the switching of an applied electric field. It was shown by the EPR measurement that with no electric field, the LC molecules directed nearly uniformly along the rubbing direction on the cell surface, on the other hand, with electric field (24V), the LC molecules largely tilted from the normal line of the smectic layer.

Oral presentation

Genetic dissection of hormonal responses in the roots of ${it Arabidopsis thaliana}$ grown under continuous mechanical impedance

Okamoto, Takashi*; Tsurumi, Seiji*; Shibasaki, Kyohei*; Ono, Yutaka; Rahman, A.*

no journal, , 

The ${it Arabidopsis}$ seedlings grown on a dialysis membrane-covered agar plate encountered adequate mechanical impedance to the roots showed characteristic ethylene phenotypes. Detailed characterization of this phenotype suggested that ethylene signaling, rather than ethylene production plays a critical role in enhancing the ethylene response. We subsequently demonstrated that the enhanced ethylene response also affects the auxin response in root. Our results provide a new insight into the role of ethylene in changing root morphology during mechanical impedance.

29 (Records 1-20 displayed on this page)