We present a new standard atlas of the human brain based on magnetic resonance images. The atlas was generated using unbiased population registration from high-resolution images obtained by multichannel-coil acquisition at 3T in a group of 24 normal subjects. The final atlas comprises three anatomical channels (T(1)-weighted, early and late spin echo), three diffusion-related channels (fraction...

We present a method of constructing the volume meshes of the membrane-channel protein system for finite element simulation of ion channels. The membrane channel system consists of the solvent region and the membrane-protein region. Our method focuses on labeling the tetrahedra in the solvent and membrane-protein regions and collecting the interface triangles between different regions. It contai...

In this paper we explore how IF (Barwise-Seligman’s information flow theory) [3] and FCA (Formal Concept Analysis) [20] may be used to help conceptual data modeling. A fundamental observation we make is that the process of conceptual data modeling is a distributed system in the sense of Barwise-Seligman’s information flow theory, i.e., the Channel theory [3], and therefore the process of concep...

This paper investigates polar codes for the additive white Gaussian noise (AWGN) channel. The scaling exponent μ of polar codes for a memoryless channel qY |X with capacity I(qY |X) characterizes the closest gap between the capacity and non-asymptotic achievable rates in the following way: For a fixed ε ∈ (0, 1), the gap between the capacity I(qY |X) and the maximum non-asymptotic rate R n achi...

In this correspondence, we generalize the theory of compactly supported biorthogonal two-channel wavelet bases to M -channel. A sufficient condition for the M -channel perfect reconstruction filter banks to constructM -channel biorthogonal bases of compactly supported wavelets is derived. It is shown that the construction of biorthogonal M -channel wavelet bases is equivalent to the design of a...

In this correspondence, we generalize the theory of compactly supported biorthogonal two-channel wavelet bases to M -channel. A sufficient condition for the M -channel perfect reconstruction filter banks to constructM -channel biorthogonal bases of compactly supported wavelets is derived. It is shown that the construction of biorthogonal M -channel wavelet bases is equivalent to the design of a...

The unavoidable parametrization of the wireless link represents a major problem of the network-coded modulation synthesis in a 2-way relay channel. Composite (hierarchical) codeword received at the relay is generally parametrized by the channel gain, forcing any processing on the relay to be dependent on channel parameters. In this paper, we introduce the codebook design criteria, which ensure ...

An EPR-channel consists of two Hilbert spaces, H A and H B , and of a density operator sitting on the their direct product space H AB. The channel is triggered by a von Neumann measurement on H A , resulting in a state (density operator) ω A. Because a measurement in H A can be considered as a measurement in H AB equally well, it induces a new state in H AB and, hence, a new state, ω B , in H B...

It is one of the biggest challenges of distributed cooperative antenna (COOPA) systems to provide base stations (BSs) with downlink channel information for transmit filtering (precoding). In this paper, we propose a novel feedback scheme via a subspace-based channel quantization method. The proposed scheme adopts the chordal distance as a channel quantizer criterion so as to capture channel cha...