Revitalisation of the British Co-operative Movement

商学部創設100周年 商学会設立50周年 記念特

Dynamics of coupled vortices in a pair of ferromagnetic disks

We here experimentally demonstrate that coupled gyration modes can be resonantly excited primarily by the ac current in a pair of ferromagnetic disks with varied separating distance. The sole gyrotropic mode clearly splits into a higher and a lower frequency modes for different configurations of polarities via dipolar interaction. These experimental results indicate that the magnetostatically coupled pair of vortices behaves similar to a diatomic molecule with bonding and anti-bonding states. These findings lead to the possible extension of designing the magnonic band structure in a chain or an array of vortices.Comment: 4 pages, 4 figures, accepte

Leadership in Co-operatives : The Experience of the Japanese Consumer Co-operative Movement

What kind of leadership should the co-operative movement seek and exercise? Because democracy is the most basic principle of the movement and underpins the structure of co-operative societies, the leadership of co-ops must be completely different from that of a private company or an autocratic organisation. As my research has been mainly on the history of the consumer co-operative movement in Japan and Britain, this paper will be from the historical viewpoint

Detecting human heads with their orientations

We propose a two-step method for detecting human heads with their orientations. In the first step, the method employs an ellipse as the contour model of human-head appearances to deal with wide variety of appearances. Our method then evaluates the ellipse to detect possible human heads. In the second step, on the other hand, our method focuses on features inside the ellipse, such as eyes, the mouth or cheeks, to model facial components. The method evaluates not only such components themselves but also their geometric configuration to eliminate false positives in the first step and, at the same time, to estimate face orientations. Our intensive experiments show that our method can correctly and stably detect human heads with their orientations

Some Governance Problems in the British Co-operative Movement in the 1990s

© 2014 L. U. Sultanov and R. L. Davydov. The paper is devoted to development and numerical implementation for a method for investigation of stress-strain state of the solids with large elastic-plastic deformations. Calculation algorithm is based on the linearized equation of virtual work, defined to actual state. The arc-length method is used. A spatial discretization is based on the finite element method. The developed algorithm of investigation of large elastic-plastic deformations is tested on the solution of the necking of circular bar