Post-Detection Interference Rejection and Weak Burst Detection in Time-Frequency Spectrograms

Proc. of XXVII General Assembly of the International Union of Radio Sciencejournal articl

対話状況におけるミラーリングが対人魅力に及ぼす影響

departmental bulletin pape

川崎市多摩区住民の生活と福祉に関する意識調査 : 調査結果中間報告

departmental bulletin pape

Study on approaching to defense techniques in basketball ― targeting high school coaches in the Kinki area ―

departmental bulletin pape

Studies on Water Pollution and Aquatic Insects in the Takahashi River Part I

departmental bulletin pape

Mathematics and Chemistry Interdisciplinary Joint Research and the Fukui Project VI

publisherThis is the sixth part of the series of articles that records and further develops essentials of the Mathematics and Chemistry Interdisciplinary Symposium 2013 Tsuyama, whose main themes were symmetry, periodicity, and repetition. The symposium was held on April 5th and 6th in Tsuyama city, Okayama, Japan, in conjunction with the Fukui Project and was devoted to the memory of the late Professor Kenichi Fukui (1981 Nobel Prize) who initiated the project. The present series also provides challenging cross-disciplinary problems which are directly related to the Fukui conjecture and to recent carbon nanotube research. Most of these problems are formulated using mathematical language of unique factorization domain (UFD) and related notions, which are not well known among chemists despite the importance of these notions in elucidating additivity and high-speed asymptotic phenomena in molecules having many repeating identical moieties.departmental bulletin pape

Study of the Relationship of Trust and Skepticism with Media Literacy among University students, with a focus on Documentary Programs

departmental bulletin pape

Flow control of vortex shedding by a short splitter plate asymmetrically arranged downstream of a cylinder

The flow around a circular cylinder （diameter d） was investigated, behind which a short thin splitter plate with a chord of 1.0d was inserted horizontally as an interference element. The plate was traversed upstream along the wake; hence its relative position is defined by gap G from the cylinder base to the plate tip and by level Z from the wake centerline. The variation in both base suction coefficient and Strouhal number with G/d significantly depends on Z/d. In the circular cylinder case with Z/d = 0.5–1.3, as the plate approaches the cylinder, the base suction coefficient exhibits a critical fall in a similar fashion to Roshko's experiment where Z/d = 0. Interestingly, however, unlike his experiment, the Strouhal number exceeds the natural one for some range of G/d beyond the critical gap. To further examine the flow mechanism, a similar situation was investigated by using a rectangular cylinder （height h, depth 0.1h） in place of the circular cylinder. A rise in the Strouhal number is observed for Z/h = 1.1. These rises in Strouhal number are explained by the flow mode in which the shear layer separated from the gap side is forced to flow into the gap and to interact in the nearer wake by the approach of the splitter plate. ©1999 American Institute of Physics

Vortex suppression of the cylinder wake by deflectors

The flow around a circular cylinder with a few interference elements shifted along the wake was investigated. This paper is mainly concerned with the case where a circular cylinder of the same diameter as that of the main cylinder was used as an interference element. In fact, this situation coincides with the flow around two circular cylinders in staggered arrangement that had been studied extensively. In the present study, however, a different point of view was adopted. Attention was devoted to a critical nature of the base pressure of the upstream fixed cylinder. As the downstream cylinder was shifted upstream, the base suction exhibited a critical fall at a certain gap for different levels off the wake centerline. The spatial trace of the critical gaps was compared with those of the experiments using thin splitter plates as an interference element.Journal HP:http://www.elsevier.com/wps/product/cws_home/50565

Simple Bitplane Coding and Its Application to Multi-Functional Image Compression

A simple image compression scheme is presented for various types of images, which include color/grayscale images, color-quantized images, and bilevel images such as document and digital halftone images. It is a bitplane coding composed of a new context modeling and adaptive binary arithmetic coding. A target bit to be encoded is conditioned by the estimates of the neighboring pixels including non-causal locations. Several functionalities are also integrated. They are arbitrary shaped ROI transmission, selective tile partitioning, accuracy scalability, and others. The proposed bitplane codec is competitive with JPEG-LS in lossless compression of 8-bit grayscale and 24-bit color images. The proposed codec is close to JBIG2 in bilevel image compression. It outperforms the existing standards in compression of 8-bit color-quantized images.journal articl