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Journal Articles

Intercalative and non-intercalative photo-recharge using all-solid-state cells for solar energy conversion and storage

Yoshimoto, Masataka*; Tamura, Kazuhisa; Watanabe, Kenta*; Shimizu, Keisuke*; Horisawa, Yuhei*; Kobayashi, Takeshi*; Tsurita, Hanae*; Suzuki, Kota*; Kanno, Ryoji*; Hirayama, Masaaki*

Sustainable Energy & Fuels (Internet), 8(6), p.1236 - 1244, 2024/03

Photo-rechargeable systems, which can efficiently convert and store solar energy into chemical energy within single devices, are essential to harness sunlight effectively. Photo-(de)intercalation plays a pivotal role in the functionality of photorechargeable systems. Nevertheless, the photo-(de)intercalation process has not been conclusively confirmed owing to potential interference from side reactions, such as the decomposition of liquid electrolytes and the elution of electrode materials. In this study, we successfully demonstrated photo-responsive Li$$^{+}$$-deintercalation using an all-solid-state thin-film battery comprised of epitaxially-grown anatase TiO$$_{2}$$ doped with Nb (a-TiO$$_{2}$$:Nb) as the cathode. Under light irradiation, Li$$^{+}$$-deintercalation occurred and was subsequently reversibly intercalated into a-TiO$$_{2}$$:Nb during discharge.

Journal Articles

Revealing the ion dynamics in Li$$_{10}$$GeP$$_{2}$$S$$_{12}$$ by quasi-elastic neutron scattering measurements

Hori, Satoshi*; Kanno, Ryoji*; Kwon, O.*; Kato, Yuki*; Yamada, Takeshi*; Matsuura, Masato*; Yonemura, Masao*; Kamiyama, Takashi*; Shibata, Kaoru; Kawakita, Yukinobu

Journal of Physical Chemistry C, 126(22), p.9518 - 9527, 2022/06

 Times Cited Count:3 Percentile:44.2(Chemistry, Physical)

Journal Articles

Correlated Li-ion migration in the superionic conductor Li$$_{10}$$GeP$$_{2}$$S$$_{12}$$

Yajima, Takeshi*; Hinuma, Yoyo*; Hori, Satoshi*; Iwasaki, Rui*; Kanno, Ryoji*; Ohara, Takashi; Nakao, Akiko*; Munakata, Koji*; Hiroi, Zenji*

Journal of Materials Chemistry A, 9(18), p.11278 - 11284, 2021/05

 Times Cited Count:15 Percentile:81.41(Chemistry, Physical)

Journal Articles

Improvement of a metabolic model for iodine and consideration of a equivalent dose to the thyroid reduction factor for application to the OSCAAR code

Kimura, Masanori; Hato, Shinji*; Matsubara, Takeshi*; Kanno, Mitsuhiro*; Munakata, Masahiro

Proceedings of Asian Symposium on Risk Assessment and Management 2017 (ASRAM 2017) (USB Flash Drive), 9 Pages, 2017/11

The authors developed a new metabolic model for iodine by combining the respiratory tract model (Publ.66), the gastrointestinal tract model (Publ.30) of the ICRP and the metabolic model for iodine (Johnson's model) in order to evaluate the behavior of radioiodine and stable iodine in the body more realistically. The developed metabolic model indicated that a reduction factor (RF) depends on dosage of stable iodine, timing of the administration of stable iodine, different iodine isotopes ($$^{131}$$I - $$^{135}$$I), and age groups. Therefore, the RF was calculated by changing these parameters and then a database of the RF was constructed for the application to the OSCAAR code.

JAEA Reports

Clearance of concrete generated from modification activities of JRR-3; Results for measuring and evaluating radioactivity concentration

Ogoshi, Yurie; Satoyama, Tomonori; Kishimoto, Katsumi; Nanri, Tomohiro; Suzuki, Takeshi; Tomioka, Osamu; Takaizumi, Hirohide*; Kanno, Tomoyuki*; Maruyama, Tatsuya*

JAEA-Technology 2017-017, 152 Pages, 2017/08

JAEA-Technology-2017-017.pdf:15.97MB

At Nuclear Science Research Institute, clearance works for about 4,000 tons of extremely low-level radioactive concrete debris, which were generated from the modification activities of JRR-3 from FY 1985 to FY 1989 and stored in the waste storage facility NL, carried out. First of this clearance works, method for measuring and evaluating radioactivity concentration was approved by Minister of MEXT on July 25, 2008. And then, clearance works were started from FY 2009. Measuring and evaluating radioactivity concentration was achieved by using the approved method, and was confirmed by government. And then, clearance works were completed in FY 2014. The clearance concrete was recycled as a material for restoration works of the 2011 off the Pacific coast of Tohoku Earthquake. This report summarizes the results of measuring and evaluating radioactivity concentration, achievement of confirmation by government, recycling of cleared concrete and cost for clearance works.

Journal Articles

Characterization of nano-sized epitaxial Li$$_{4}$$Ti$$_{5}$$O$$_{12}$$(110) film electrode for lithium batteries

Kim, K.-S.*; Tojigamori, Takeshi*; Suzuki, Kota*; Taminato, So*; Tamura, Kazuhisa; Mizuki, Junichiro; Hirayama, Masaaki*; Kanno, Ryoji*

Denki Kagaku Oyobi Kogyo Butsuri Kagaku, 80(10), p.800 - 803, 2012/10

 Times Cited Count:12 Percentile:30.1(Electrochemistry)

Electrochemical properties and structure changes of nano-sized Li$$_{4}$$Ti$$_{5}$$O$$_{12}$$ during lithium (de)intercalation wereinvestigated using a two-dimensional thin film electrode. Li$$_{4}$$Ti$$_{5}$$O$$_{12}$$ thin films were deposited on a Nb:SrTiO$$_{3}$$(110)substrate by a pulsed laser deposition technique. In situ X-ray diffraction measurements clarified the drastic structural changes of the Li$$_{4}$$Ti$$_{5}$$O$$_{12}$$film upon soaking in the electrolyte and during the first intercalation and deintercalation processes. The surfaceregion of Li$$_{4}$$Ti$$_{5}$$O$$_{12}$$ had a different structure from the bulk during electrochemical cycling and could cause the nanosizedLi$$_{4}$$Ti$$_{5}$$O$$_{12}$$ electrodes to have high capacities and poor stabilities.

Journal Articles

The H-Invitational Database (H-InvDB); A Comprehensive annotation resource for human genes and transcripts

Yamasaki, Chisato*; Murakami, Katsuhiko*; Fujii, Yasuyuki*; Sato, Yoshiharu*; Harada, Erimi*; Takeda, Junichi*; Taniya, Takayuki*; Sakate, Ryuichi*; Kikugawa, Shingo*; Shimada, Makoto*; et al.

Nucleic Acids Research, 36(Database), p.D793 - D799, 2008/01

 Times Cited Count:51 Percentile:71.37(Biochemistry & Molecular Biology)

Here we report the new features and improvements in our latest release of the H-Invitational Database, a comprehensive annotation resource for human genes and transcripts. H-InvDB, originally developed as an integrated database of the human transcriptome based on extensive annotation of large sets of fulllength cDNA (FLcDNA) clones, now provides annotation for 120 558 human mRNAs extracted from the International Nucleotide Sequence Databases (INSD), in addition to 54 978 human FLcDNAs, in the latest release H-InvDB. We mapped those human transcripts onto the human genome sequences (NCBI build 36.1) and determined 34 699 human gene clusters, which could define 34 057 protein-coding and 642 non-protein-coding loci; 858 transcribed loci overlapped with predicted pseudogenes.

Journal Articles

Monte Carlo simulation of beta and $$gamma$$-rays emitted by radon progeny products in a thundercloud electric field and an analytical research on the atmospheric diffusion of the radon gases in the East Asia area

Torii, Tatsuo; Sugita, Takeshi*; Kido, Hiroko*; Kanno, Mitsuhiro*; Kurosawa, Naohiro*

Taiki Denki Kenkyu, (69), p.32 - 33, 2006/00

no abstracts in English

JAEA Reports

Analysis of Case with Change of Density of Buffer Material by Extrusion Behavior to Use Diffusion Model

Matsumoto, Kazuhiro*; Tanai, Kenji; Kanno, Takeshi*; Iwata, Yumiko*

JNC TN8400 2005-009, 40 Pages, 2005/06

JNC-TN8400-2005-009.pdf:2.5MB

The buffer that will be used as a component of the engineered barriers system swells when saturated by groundwater. As a result of this swelling, buffer may penetrate into the peripheral rock zone surrounding the buffer through open fractures. It sustained for extremely long periods of time, the buffer extrusion could lead to reduction of buffer density, which may in turn degrade the assumed performance. In this report, the viscosity of bentonite was measured as one of the parameter of diffusion model. In addition, the simulation analysis was carried out to confirm the applicability of diffusion model. Moreover, an analytical evaluation on extrusion behavior of buffer into rock fractures was performed due to estimate the long-term stability of buffer as reduction of density.

JAEA Reports

Study of analytical technique concerned with metal organic complexes in groundwater

Tochigi, Yoshikatsu*; Kanno, Takeshi*; Ueno, Shunichiro*; Kubota, Nobuhiko*; Nishino, Junnya*; Fukunaga, Sakae*

JNC TJ7400 2005-017, 49 Pages, 2004/03

JNC-TJ7400-2005-017.PDF:12.08MB

The analytical procedure is investigated and examined with the aim of considering complex stability constant concerned with abundance ratio of metal ion / organic complexes dissolved in groundwater. The condenser of organic material in groundwater and experimental system for simulating subsurface environment are constructed and the experiment.

JAEA Reports

Study on Model for Bentonite Buffer Intrusion (II)

Kanno, Takeshi*; Iwata, Yumiko*

JNC TJ8400 2003-083, 65 Pages, 2004/02

JNC-TJ8400-2003-083.pdf:0.81MB

Modelling study on the extrusion phenomenon of the bentonite in a geological repository for the high-level radioactive is performed to enhance the reliability of latest model studied on fiscal year 2003(H14), on the matter of density distribution of extruded bentonite gel. In this study, the model is reconsidered and revised based on the result of comparison between experimental and calculated results. The numerical analyses for BENTFLOW type experiments and model experiments on extrusion in a pipe are performed using the revised model. The analyses for the BENTFLOW about distribution of extrusion density reproduce the experimental results tolerably. The agreement between the calculated and experimental results of the model experiments are not good. Our model is originated in solid diffusion model of swelling clay proposed by Nakano et al. To enhance the reliability of our model, the latest model is reviewed by experts. At last, the numerical analyses for H12 type repository are performed by revised model to evaluate the long-term reduction of bentonite density for the extrusion phenomenon. The analytical results are compared with the results described in H12 report.

JAEA Reports

Study on Microbial Influence Assessment in Geological Disposal (II) (Summary Report)

Fukunaga, Sakae*; Iwata, Yumiko*; Kanno, Takeshi*; Kudo, Akira*

JNC TJ8400 2003-070, 45 Pages, 2003/02

JNC-TJ8400-2003-070.pdf:0.13MB

This report summarizes two investigations concerned with microbial influence in geological disposal facilities. 1)Literature survey on simulation models for the microbial-influence evaluation, 2) Experiment for the interaction between bacteria and Pu at Eh=-135mV.

JAEA Reports

Study on Microbial Influence Assessment in Geological Disposal (II)

Fukunaga, Sakae*; Iwata, Yumiko*; Kanno, Takeshi*; Kudo, Akira*

JNC TJ8400 2003-069, 73 Pages, 2003/02

JNC-TJ8400-2003-069.pdf:0.39MB

This report summarizes two investigations concerned with microbial influence in geological disposal facilities. 1)Literature surevey on simulation models for the microbial-influence evaluation. 2)Interaction between Sulfate reducing bacteria(SRB) and Pu. For simulation models, we found some papers on gas production, geochemistry, microbial corrosion and microbial amount. To make the microbial-influence evaluation more reliable, it will be necessary to study subjects such as biodegradability of organic matter, microbial amount and certification of models. The sorption experiment for Pu onto SRB was conducted. It resulted in that effects of sterilization on the distribution coefficientat were not evident at Eh=-135mV.

JAEA Reports

Study on Model for Bentonite Buffer Intrusion Phenomenon

Kanno, Takeshi*; Iwata, Yumiko*

JNC TJ8400 2003-026, 63 Pages, 2003/02

JNC-TJ8400-2003-026.pdf:0.56MB

Modelling study on the extrusion phenomenon in a geological repository for the high-level radioactive is performed to enhance the reliability of existing model described in H12 report. Main conclusions of this study are as follows: (1) The methods and pysical interpretation of bentonite gel viscosity measurements are clarified and input data of the viscosity for the solid diffusivity are obtained. (2) The input data of the swelling pressure and hydraulic conductivity of bentonite in the low- density region necessary for the solid diffusivity are determined. (3) The consolidation-type model proposed by Ahn et al. is surveyed and compared with that used in this study. The consolidation-type model is thought to be equivalent to the solid diffusion model used in this study. (4) The numerical analyses for BENTFLOW experiments and model experiments on extrusion in a pipe are performed. The analyses for the BENTFLOW reproduce the experimental results better than the past studies. The agreement between the calculated and experimental results of the model experiments is not good. Thus further study is required for the evaluation of density distribution in extruding bentonite gel.

JAEA Reports

None

; Fujita, Tomoo; Kanno, Takeshi; Ishikawa, Hirohisa

PNC TN8410 97-308, 162 Pages, 1997/12

PNC-TN8410-97-308.pdf:8.36MB

None

JAEA Reports

None

Ishikawa, Hirohisa; Kanno, Takeshi; Matsumoto, Kazuhiro*

PNC TN8410 97-313, 32 Pages, 1997/09

PNC-TN8410-97-313.pdf:3.83MB

None

JAEA Reports

None

Matsumoto, Kazuhiro*; Kanno, Takeshi; Fujita, Tomoo; Suzuki, Hideaki*

PNC TN8410 97-296, 134 Pages, 1997/04

PNC-TN8410-97-296.pdf:6.57MB

None

JAEA Reports

None

; Kanno, Takeshi; Ishikawa, Hirohisa; Ishiguro, Katsuhiko

PNC TN8410 97-074, 60 Pages, 1997/02

PNC-TN8410-97-074.pdf:2.22MB

None

JAEA Reports

None

; Kanno, Takeshi; Ishikawa, Hirohisa; Ishiguro, Katsuhiko

PNC TN8410 97-051, 53 Pages, 1997/02

PNC-TN8410-97-051.pdf:1.4MB

None

JAEA Reports

None

Chijimatsu, Masakazu*; Matsumoto, Kazuhiro*; Kanno, Takeshi; Ishiguro, Katsuhiko; Sugita, Yutaka; Moro, Yoshiji*; Ishikawa, Hirohisa

PNC TN8410 97-025, 57 Pages, 1997/01

PNC-TN8410-97-025.pdf:5.18MB

None

32 (Records 1-20 displayed on this page)