Search results for: N. Yoshinaga

Items from 1 to 20 out of 26 results

article

Development of co-located 129Xe and 131Xe nuclear spin masers with external feedback scheme

T. Sato, Y. Ichikawa, S. Kojima, C. Funayama, more

Physics Letters A > 2018 > 382 > 8 > 588-594

We report on the operation of co-located ¹²⁹Xe and ¹³¹Xe nuclear spin masers with an external feedback scheme, and discuss the use of ¹³¹Xe as a comagnetometer in measurements of the ¹²⁹Xe spin precession frequency. By applying a correction based on the observed change in the ¹³¹Xe frequency, the frequency instability due to magnetic field and cell temperature drifts are eliminated by two orders of...

article

Heterogeneous nanostructure developed in heavily cold-rolled stainless steels and the specific mechanical properties

H. Miura, M. Kobayashi, Y. Todaka, C. Watanabe, more

Scripta Materialia > 2017 > 133 > C > 33-36

Stainless steels were cold rolled to 92% reduction. The microstructure developed in a stable austenitic stainless steel was complicated heterogeneous nanostructure composed of lamellar-twin domains, shear bands and low-angle lamellar boundaries. Cold-rolled duplex stainless steel, however, exhibited more complicated and mixed microstructure where ferritic lamellar and the heterogeneous nanostructure...

article

Probing exotic phenomena at the interface of nuclear and particle physics with the electric dipole moments of diamagnetic atoms: A unique window to hadronic and semi-leptonic CP violation

N. Yamanaka, B. K. Sahoo, N. Yoshinaga, T. Sato, more

The European Physical Journal A > 2017 > 53 > 3 > 1-49

. The current status of electric dipole moments of diamagnetic atoms which involves the synergy between atomic experiments and three different theoretical areas, i.e. particle, nuclear and atomic, is reviewed. Various models of particle physics that predict CP violation, which is necessary for the existence of such electric dipole moments, are presented. These include the standard model of particle...

chapter

Triaxiality and Chirality in Nuclei Around Mass 130

N. Yoshinaga, K. Higashiyama

Symmetries in Science XI > 589-609

Nuclei around mass 130 have many interesting features such as high-spin isomers, backbending phenomena, even-odd energy staggering of quasi-γ band caused by a soft triaxial deformation, and features recently referred to as “chiral bands”. Moreover, the beta-decays and electron-captures in this region provide us with necessary information for predicting the abundance of nuclei in the environment of...

article

Emission of herbivore elicitor‐induced sesquiterpenes is regulated by stomatal aperture in maize (Zea mays) seedlings

I. SEIDL‐ADAMS, A. RICHTER, K. B. BOOMER, N. YOSHINAGA, more

Plant, Cell & Environment > 38 > 1 > 23 - 34

Maize seedlings emit sesquiterpenes during the day in response to insect herbivory. Parasitoids and predators use induced volatile blends to find their hosts or prey. To investigate the diurnal regulation of biosynthesis and emission of induced sesquiterpenes, we applied linolenoyl‐L‐glutamine (LG) to maize seedlings in the morning or evening using a cut‐stem assay and tracked farnesene emission,...

chapter

A turnout without movable parts for magnetically levitated vehicles with hybrid magnets

T. Kakinoki, H. Yamaguchi, N. Yoshinaga, E. Mukai, more

2012 15th International Conference on Electrical Machines and Systems (ICEMS) > 1 - 4

2012 15th International Conference on Electrical Machines and Systems (ICEMS)

This paper describes a turnout without movable parts for magnetically levitated vehicles with hybrid magnets, which have been studied by the authors in place of street cars. Their low construction cost and low maintenance are key to their practical use. Magnetic levitation systems using forces of attraction can generate guidance force automatically, but the damping force against lateral motion is...

chapter

Proposal of user-collaborative mobile object assignment system

S Itaya, N Yoshinaga, H Ito, R Tanaka, more

IEEE Local Computer Network Conference > 658 - 662

2010 IEEE 35th Conference on Local Computer Networks (LCN 2010)

Recently, mobile object sharing systems including car-sharing systems have been gathering more attention as an ecological activity. In this paper, we propose a user-collaborative mobile object assignment system using location information of users. The optimal mobile object assignment is to minimize travel distances of mobile objects in the existing mobile object assignment system, and the system controls...

chapter

Formal concept analysis based web pages classification/visualization and their application to information retrieval

N Yoshinaga, H Nobuhara

2010 10th International Symposium on Communications and Information Technologies > 153 - 157

2010 10th International Symposium on Communications and Information Technologies (ISCIT 2010)

The net users are required a lot of time to treat with web search engines due to their retrieved results as ranking lists. In order to reduce load of users, `search@once' that provides well-structured outputs as line-diagram, is proposed. The proposed system employs formal concept analysis to classify web pages and visualize the lattice structure of web pages and keywords as line diagram. This system...

chapter

Content Propagation Analysis of E-mail Communications

N Yoshinaga, S Itaya, R Tanaka, T Konishi, more

2010 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology > 3 > 79 - 82

2010 IEEE/ACM International Conference on Web Intelligence-Intelligent Agent Technology (WI-IAT)

We analyze email communications within a large company to reveal how email activity patterns depend on content. We characterize email contents using keywords and examine statistics of email transmissions. As a result, we are able to identify differences in network structures and propagation behaviors depending on the type of keyword.

chapter

Incentive Rewarding Method for Information Propagation in Social Networks

Y Takata, R Hashimoto, R Shinkuma, T Takahashi, more

2010 10th IEEE/IPSJ International Symposium on Applications and the Internet > 173 - 176

2010 10th IEEE/IPSJ International Symposium on Applications and the Internet (SAINT)

A problem in the social-network-based intaraction distribution is that people are less motivated to forward information when psychological forwarding cost is large. The simplest solution for this is to compensate for the cost by giving people incentive reward when they forward information. However, it is unclear that, even if we successfully propagate information over the whole social network by the...

article

On the Adsorption of Two-State Polymers

N. Yoshinaga, E. Kats, A. Halperin

Macromolecules > 2008 > 41 > 20 > 7744 - 7751

article

Deformation behavior of carbon steel with dispersed fine voids at elevated temperatures

H. Miura, T. Sakai, M. Okonogi, N. Yoshinaga

Materials Science & Engineering A > 2008 > 483-484 > Complete > 590-593

A carbon steel containing dispersed fine voids, with diameters in the range of 3–5μm, was deformed in compression at temperatures between 1063K and 1153K and at true strain rates from 4.2×10 ⁻⁵ s ⁻¹ to 4.2×10 ⁻³ s ⁻¹ . The deformation behavior did not differ much from that of a carbon steel without voids. The maximum stress and the corresponding maximum strain increased...

chapter

A Novel Web-Oriented Writing Environment Using Objects' Facts Acquired from the Web

N. Yoshinaga, K. Nakamura, K. Torisawa

2007 IEEE/WIC/ACM International Conferences on Web Intelligence and Intelligent Agent Technology - Workshops > 230 - 234

WI-IAT Workshops 2007. 2007 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology

This paper presents a novel web-oriented writing environment that helps users describe their opinions on topics/events through weblogs, by showing facts related to the objects. Our writing environment automatically recognizes information needs for facts on aspects (e.g., "opening hours") of the objects (e.g., "J's cafe") by applying lexico- syntactic patterns to the snapshots of...

article

Dynamic Core−Shell Structures in Two-State Models of Neutral Water-Soluble Polymers

N. Yoshinaga, D. J. Bicout, E. I. Kats, A. Halperin

Macromolecules > 2007 > 40 > 6 > 2201 - 2209

article

Application of a quadrupole-coupling model to doublet bands in doubly-odd nuclei

K. Higashiyama, N. Yoshinaga

The European Physical Journal A > 2007 > 33 > 4 > 355-374

. A simple model is applied to the yrast and yrare states based on the νh _11/2 ⊗ πh _11/2 configuration in the doubly-odd nuclei around the mass 130. In the model, the basis state is constructed by one neutron and one proton both in the 0h _11/2 orbital, and by the collective core which couples with the two particles through a quadrupole interaction. The model reproduces quite well the overall energy...

article

A simple model for doublet bands in doubly odd nuclei

N. Yoshinaga, K. Higashiyama

The European Physical Journal A > 2007 > 31 > 3 > 395-395

Original Article: Eur. Phys. J. A 30, 343-346 (2006) DOI: 10.1140/epja/i2006-10141-6

article

A simple model for doublet bands in doubly odd nuclei

N. Yoshinaga, K. Higashiyama

The European Physical Journal A > 2006 > 30 > 2 > 343-346

. Nuclear structure of doublet bands in doubly odd nuclei with mass A ∼ 130 is investigated within the framework of a simple model where the even-even core couples with a neutron and a proton in intruder orbitals through a quadrupole-quadrupole interaction. The model reproduces quite well the energy levels of doublet bands and electromagnetic transitions. The staggering of the ratios B(M1;I → I -...

article

Erratum to “In vitro biosynthesis of volicitin in Spodoptera litura” [Insect Biochemistry and Molecular Biology 35 (2005) 175–184]

N. Yoshinaga, N. Morigaki, F. Matsuda, R. Nishida, more

Insect Biochemistry and Molecular Biology > 2005 > 35 > 8 > 945

article

Different pathways in mechanical unfolding/folding cycle of a single semiflexible polymer

N. Yoshinaga, K. Yoshikawa, T. Ohta

The European Physical Journal E > 2005 > 17 > 4 > 485-491

. Kinetics of conformational change of a semiflexible polymer under mechanical external field were investigated with Langevin dynamics simulations. It is found that a semiflexible polymer exhibits large hysteresis in mechanical folding/unfolding cycle even with a slow operation, whereas in a flexible polymer, the hysteresis almost disappears at a sufficiently slow operation. This suggests that the...

article

Molecular dynamics simulation for the baryon-quark phase transition at finite baryon density

Y. Akimura, T. Maruyama, N. Yoshinaga, S. Chiba

The European Physical Journal A > 2005 > 25 > 3 > 405-411

. We study the baryon-quark phase transition in the molecular dynamics (MD) of the quark degrees of freedom at finite baryon density. The baryon state at low baryon density, and the deconfined quark state at high baryon density are reproduced. We investigate the equations of state of matters with different u-d-s compositions. It is found that the baryon-quark transition is sensitive to the quark width.

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Search results for: N. Yoshinaga

Development of co-located 129Xe and 131Xe nuclear spin masers with external feedback scheme

Heterogeneous nanostructure developed in heavily cold-rolled stainless steels and the specific mechanical properties

Probing exotic phenomena at the interface of nuclear and particle physics with the electric dipole moments of diamagnetic atoms: A unique window to hadronic and semi-leptonic CP violation

Triaxiality and Chirality in Nuclei Around Mass 130

Emission of herbivore elicitor‐induced sesquiterpenes is regulated by stomatal aperture in maize (Zea mays) seedlings

A turnout without movable parts for magnetically levitated vehicles with hybrid magnets

Proposal of user-collaborative mobile object assignment system

Formal concept analysis based web pages classification/visualization and their application to information retrieval

Content Propagation Analysis of E-mail Communications

Incentive Rewarding Method for Information Propagation in Social Networks

On the Adsorption of Two-State Polymers

Deformation behavior of carbon steel with dispersed fine voids at elevated temperatures

A Novel Web-Oriented Writing Environment Using Objects' Facts Acquired from the Web

Dynamic Core−Shell Structures in Two-State Models of Neutral Water-Soluble Polymers

Application of a quadrupole-coupling model to doublet bands in doubly-odd nuclei

A simple model for doublet bands in doubly odd nuclei

A simple model for doublet bands in doubly odd nuclei

Erratum to “In vitro biosynthesis of volicitin in Spodoptera litura” [Insect Biochemistry and Molecular Biology 35 (2005) 175–184]

Different pathways in mechanical unfolding/folding cycle of a single semiflexible polymer

Molecular dynamics simulation for the baryon-quark phase transition at finite baryon density

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