检索结果-内蒙古大学图书馆

Search for electron EDM with laser cooled radioactive atom

AIP Conference Proceedings 2013年第1期1533卷 134-139页

作者： T. Inoue H. Arikawa S. Ezure K. Harada T. Hayamizu T. Ishikawa M. Itoh T. Kato H. Kawamura H. S. Nataraj T. Sato T. Aoki T. Furukawa A. Hatakeyama K. Hatanaka K. Imai T. Murakami Y. Shimizu T. Wakasa H. P. Yoshida Y. Sakemi Cyclotron and Radioisotope Center Tohoku University Miyagi 980-8578 Japan Graduate School of Arts and Sciences University of Tokyo Tokyo 153-8902 Japan Department of Physics Tokyo Metropolitan University Tokyo 192-0397 Japan Department of Applied Physics Tokyo University of Agriculture and Technology Tokyo 184-8588 Japan Research Center for Nuclear Physics Osaka University Osaka 567-0047 Japan Advanced Science Research Center Japan Atomic Energy Agency Ibaraki 319-1195 Japan Department of Physics Kyoto University Kyoto 606-8502 Japan Department of Physics Tohoku University Miyagi 980-8578 Japan Department of Physics Kyushu University Fukuoka 812-8581 Japan

The permanent electric dipole moment (EDM) of the elementary particle has the sensitivity to the CP violation in the theories beyond the standard model (SM). The search for the EDM constitutes the stringent test to discriminate between the SM and beyond it. We plan to perform the electron EDM search by using the laser cooled francium (Fr) atom which has the largest enhancement factor of the electron EDM in the alkali atoms. In this paper, the present status of the laser cooled Fr factory that is being constructed at Cyclotron and Radioisotope center (CYRIC), Tohoku University are reported.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Spider hero: Entertainment VR with pulling force

引用

Kyokai Joho Imeji Zasshi/Journal of the Institute of Image Information and Television Engineers 2012年第1期66卷 J11-J16页

作者： Ishibashi, Ken Da Luz, Toni Eynard, Remy Kita, Naoki Jiang, Nan Segi, Hiroshi Terada, Keisuke Fujita, Kyohei Miyata, Kazunori School of Knowledge Science Japan Advanced Institute of Science and Technology 1-1 Asahidai Nomi Ishikawa 923-1292 Japan Arts et Metiers ParisTech Presence and Innovation Laboratories Ingcnicrium - 4 rue dc l'Ermitagc 53000 Laval France Research Center for Innovative Lifestyle Design Japan Advanced Institute of Science and Technology 1-1 Asahidai Nomi Ishikawa 923-1292 Japan

In our entertainment VR application, the user can move freely through a virtual city by using a web like Spiderman™. In this application, the user wears a web shooter, which is a device to shoot webs, and takes aim at a target building. Then, when the user swings his/her arm ahead, a web is launched and it sticks to the target building on the screen. After the web sticks to the building, the user's arm is pulled in the direction of the target building by a pulling force feedback system, which gives the feeling of pulling to the user directly and smoothly, as if he/she were attached to an elastic string. Finally, the user moves to the target building. In three exhibitions, we surveyed the effectiveness of the application by questionnaire. We were able to confirm that a lot of users had enjoyed and were satisfied with our VR application.

关键词： Buildings

来源：评论

学校读者我要写书评

暂无评论

Artifactual component classification from MEG data using support vector machine

Artifactual component classification from MEG data using sup...

引用

Biomedical Engineering International Conference (BMEiCON)

作者： Montri Phothisonothai Fang Duan Hiroyuki Tsubomi Aki Kondo Kazuyuki Aihara Yuko Yoshimura Mitsuru Kikuchi Yoshio Minabe Katsumi Watanabe Research Center for Advanced Science and Technology Department of Electrical Engineering and Information Systems University of Tokyo Tokyo Japan Institute of Industrial Science Collaborative Research Center for Innovative Mathematical Modelling University of Tokyo Tokyo Japan Faculty of Humanities University of Toyama Toyama Japan Kanazawa University Kanazawa Japan Research Center for Child Mental Development Graduate School of Medical Science Kanazawa University Kanazawa Japan

ISBN: (纸本)9781467348904

Recently, an independent component analysis (ICA) has been proven to be an effective method for removing artifacts and noise in multi-channel physiological measures. ICA can extract independent component (IC) which was directly regarded as artifacts. In this paper, we propose an automatic method for classifying physiological artifacts from magnetoencephalogram (MEG) data. The artifactual ICs were classified based on support vector machine (SVM) algorithm. The following parameters: kurtosis (K), probability density (PD), central moment of frequency (CMoF), spectral entropy (SpecEn), and fractal dimension (FD) were used as input vector of SVM. The proposed method showed the average classification rates of 99.18%, 92.33%, and 98.15% for cardiac (EKG), ocular (EOG), and high-amplitude changes (HAM), respectively.

关键词： Support vector machines Electrooculography Electrocardiography Noise Integrated circuits Independent component analysis Educational institutions

来源：评论

学校读者我要写书评

暂无评论

Ultrafast Time-Resolved Faraday Rotation in EuO Thin Films

引用

Physical Review Letters 2012年第25期108卷 257401-257401页

作者： F. Liu T. Makino T. Yamasaki K. Ueno A. Tsukazaki T. Fukumura Y. Kong M. Kawasaki Quantum Phase Electronics Center and Department of Applied Physics University of Tokyo Tokyo 113-8656 Japan School of Physics Nankai University Tianjin 300071 China Cross-Correlated Materials Research Group (CMRG) and Correlated Electron Research Group (CERG) RIKEN Advanced Science Institute Wako 351-0198 Japan Institute for Materials Research Tohoku University Sendai 980-8577 Japan Graduate School of Arts and Sciences University of Tokyo Tokyo 153-8902 Japan PRESTO Japan Science and Technology Agency Tokyo 102-0075 Japan Department of Chemistry University of Tokyo Tokyo 113-0033 Japan WPI-Advanced Institute for Materials Research Tohoku University Sendai 980-8577 Japan Japan Science and Technology Agency (CREST) Tokyo 102-0075 Japan

We have investigated the ultrafast spin dynamics in EuO thin films by time-resolved Faraday rotation spectroscopy. The photoinduced magnetization is found to be increased in a transient manner, accompanied with subsequent demagnetization. The dynamical magnetization enhancement showed a maximum slightly below the Curie temperature with prolonged tails toward both lower and higher temperatures and dominates the demagnetization counterpart at 55 K. The magnetization enhancement component decays in ∼1 ns. The realization of the transient collective ordering is attributable to the enhancement of the f−d exchange interaction.

关键词： TIME-resolved spectroscopy FARADAY effect THIN films NUCLEAR spin MAGNETIZATION CURIE temperature HIGH temperatures TRANSIENTS (Dynamics)

来源：评论

学校读者我要写书评

暂无评论

Tachyon Condensation Due to Domain-Wall Annihilation in Bose-Einstein Condensates

引用

Physical Review Letters 2012年第24期109卷 245301-245301页

作者： Hiromitsu Takeuchi Kenichi Kasamatsu Makoto Tsubota Muneto Nitta Graduate School of Integrated Arts and Sciences Hiroshima University Kagamiyama 1-7-1 Higashi-Hiroshima 739-8521 Japan Department of Physics Kinki University Higashi-Osaka 577-8502 Japan Department of Physics and The Osaka City University Advanced Research Institute for Natural Science and Technology (OCARINA) Osaka City University Sumiyoshi-ku Osaka 558-8585 Japan Department of Physics and Research and Education Center for Natural Sciences Keio University Hiyoshi 4-1-1 Yokohama Kanagawa 223-8521 Japan

We show theoretically that a domain-wall annihilation in two-component Bose-Einstein condensates causes tachyon condensation accompanied by spontaneous symmetry breaking in a two-dimensional subspace. Three-dimensional vortex formation from domain-wall annihilations is considered a kink formation in subspace. Numerical experiments reveal that the subspatial dynamics obey the dynamic scaling law of phase-ordering kinetics. This model is experimentally feasible and provides insights into how the extra dimensions influence subspatial phase transition in higher-dimensional space.

关键词： ANNIHILATION reactions BOSE-Einstein condensation TACHYONS PARTICLES (Nuclear physics) NUMERICAL analysis

来源：评论

学校读者我要写书评

暂无评论

Ultrafast optical control of magnetization in EuO thin films

引用

Physical Review B 2012年第6期86卷 064403-064403页

作者： T. Makino F. Liu T. Yamasaki Y. Kozuka K. Ueno A. Tsukazaki T. Fukumura Y. Kong M. Kawasaki Correlated Electron Research Group (CERG) and Cross-Correlated Materials Research Group (CMRG) RIKEN Advanced Science Institute Wako 351-0198 Japan Quantum Phase Electronics Center and Department of Applied Physics University of Tokyo Tokyo 113-8656 Japan School of Physics Nankai University Tianjin 300071 China Institute for Materials Research Tohoku University Sendai 980-8577 Japan Graduate School of Arts and Sciences University of Tokyo Tokyo 153-8902 Japan PRESTO Japan Science and Technology Agency Tokyo 102-0075 Japan Department of Chemistry University of Tokyo Tokyo 113-8656 Japan

All-optical pump-probe detection of magnetization precession has been performed for ferromagnetic EuO thin films at 10 K. We demonstrate that the circularly polarized light can be used to control the magnetization precession on an ultrafast time scale. This takes place within the 100-fs duration of a single laser pulse, through combined contribution from two nonthermal photomagnetic effects, i.e., enhancement of the magnetization and an inverse Faraday effect. From the magnetic field dependencies of the frequency and the Gilbert damping parameter, the intrinsic Gilbert damping coefficient is evaluated to be α ≈ 3 × 10−3.

关键词： OPTICAL control MAGNETIZATION THIN films RARE earths ULTRASHORT laser pulses FARADAY effect DAMPING (Mechanics)

来源：评论

学校读者我要写书评

暂无评论

Evaluation of Carbon Interstitial in C‐ion Implanted ZnO Bulk Single Crystals by a Nuclear Reaction Analysis Study: An Origin of Low Resistivity

引用

AIP Conference Proceedings 2011年第1期1399卷 69-70页

作者： Y. Izawa K. Matsumoto T. Oga K. Kuriyama K. Kushida A. Kinomura aCollege of Engineering and Research Center of Ion Beam Technology Hosei University Koganei Tokyo 184‐8584 Japan bDepartment of Arts and Sciences Osaka Kyoiku University Kashiwara Osaka 582‐8582 Japan cNational Institute of Advanced Industrial Science and Technology Tsukuba Ibaraki 305‐8568 Japan

Nuclear reaction analysis (NRA) of carbon‐implanted ZnO bulk single crystals (carbon concentration: 1.5×1020 cm−3 ), in conjunction with the channeling technique, using the 12C(d,p)13C and 16O(d,p)17O reactions shows the presence of the interstitial carbon (Ci) and the occupancy of substitute sites of oxygen atoms. These results suggest that the variation in resistivity from the order of 104 Ωcm (for un‐implanted samples) to that of 10 Ωcm (for as‐implanted ones) is attributed to the Ci and/or its complex defects, which would act as a shallow donor in ZnO.

关键词：

来源：评论

学校读者我要写书评

暂无评论

A wire-tap approach to enhance security in communication systems using the encoding-encryption paradigm

A wire-tap approach to enhance security in communication sys...

引用

International Conference on Telecommunications (ICT)

作者： Miodrag Mihaljević Frédérique Oggier Mathematical Institute Serbian Academy of Sciences and Arts Belgrade Serbia and Research Center for Information Security (RCIS) Institute of Advanced Industrial Science and Technology (AIST) Tokyo Japan Division of Mathematical Sciences Nanyang Technological University Singapore

Motivated by the GSM system, we consider communication systems which employ the encoding-encryption paradigm of first encoding the data before encrypting it for transmission. We add one level of security to the existing system designs by introducing a wiretap encoder. We analyze the security from an information theoretical point of view, and prove the enhanced security of the proposed scheme, focusing on the case of known plain text attacks that can endanger not only the confidentiality of some messages but also the safety of the key used for encryption, and thus the security of the whole communication system.

关键词： Communication system security Cryptography Information security Data security GSM Error correction Communication systems Error correction codes Channel coding Art

来源：评论

学校读者我要写书评

暂无评论

A Security evaluation of certain stream ciphers which involve randomness and coding

A Security evaluation of certain stream ciphers which involv...

引用

International Symposium on Information Theory and Its Applications, ISITA

作者： Miodrag Mihaljević Hideki Imai Research Center for Information Security (RCIS) Nat. Inst. of Advanced Industrial Science and Technology (AIST) Tokyo Japan Mathematical Institute Serbian Academy of Sciences and Arts Belgrade Serbia Faculty of Sciences and Engineering Chuo University Tokyo Japan Research Center for Information Security (RCIS) National Institute AIST Tokyo Japan

Following some of the recently reported results, an approach for design of stream ciphers has been considered which is based on joint employment of pseudorandomness, randomness and dedicated wire-tap channel and error correction coding. The wire-tap channel coding controlled by the randomness, provides that an attacker faces not only the traditional problems of cryptanalysis but also the problem of decoding without the secret key which appears as complex as the exhaustive search over the possible secret keys. Security evaluation has been performed based on the algebraic representation of the proposed stream cipher. The given security evaluation has addressed hardness of the algebraic recovering of the secret key in the CPA scenario. It is shown that the secret key recovery is as hard as the LPN ϵ problem where ϵ = (1-(1-2p) (m-ℓ)/2 )/2 and m, ℓ and p are the stream cipher parameters.

关键词： Encoding Equations Encryption Decoding Noise Generators

来源：评论

学校读者我要写书评

暂无评论

Potential Linkages Between the Inner and Outer Cellular States of Human Induced Pluripotent Stem Cells

Potential Linkages Between the Inner and Outer Cellular Stat...

引用

第四届最优化与系统生物学国际研讨会

作者： Shigeru Saito Yasuko Onuma Yuzuru Ito Hiroaki Tateno Masashi Toyoda Hidenori Akutsu Koichiro Nishino Emi Chikazawa Yoshihiro Fukawatase Yoshitaka Miyagawa Hajime Okita Nobutaka Kiyokawa Yohichi Shimma Akihiro Umezawa Jun Hirabayashi Katsuhisa Horimoto Makoto Asashima Computational Biology Research Center National Institute of Advanced Industrial Science Technology (AIST)2-4-7 Aomi Koto-ku Tokyo 135-0064 Japan Research Center for Stem Cell Engineering National Institute of Advanced Industrial Science Technology (AIST) Tsukuba Central 41-1-1 Higashi Tsukuba Ibaraki 305-8562 Japan Research Center for Medical Glycoscience National Institute of Advanced Industrial Science Technology (AIST) Tsukuba Central 21-1-1 Umezono Ibaraki 305-8568 Japan Institute for Systems Biology Shanghai University Department of Life Sciences (Biology) Graduate School of Arts and Sciences The University of Tokyo

We analyzed both RNA profile to reveal gene expression changes and glycan profile to identify structural changes in glycans between four parental somatic cell （SC） lines and nine hiPSC lines that were originally established. The sum of these information by a combination of standard statistical techniques and a network approach showed significant differences in expression between the iPSCs and SCs. Subsequent network analysis of the gene expression and glycan signatures revealed glycan transfer network associated with known epitopes for differentiation. The present study is the first to uncover the relationships between gene expression patterns and cell surface changes in hiPSCs, and reinforces the importance of the cell surface to identify established iPSCs from SCs.

关键词： Induced pluripotent stem cell DNA microarray Lectin microarray Network Analysis

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：