Jun HASEGAWA

Bidirectional Packet Aggregation and Coding for Efficient VoIP Transmission in Wireless Multi-Hop Networks
Jun HASEGAWA Hiroyuki YOMO Yoshihisa KONDO Peter DAVIS Katsumi SAKAKIBARA Ryu MIURA Sadao OBANA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/10/01
Vol. E92-B  No. 10  pp. 3060-3070
Type of Manuscript:  Special Section PAPER (Special Section on Advanced Information and Communication Technologies and Services in Conjunction with Main Topics of APCC/COIN 2008)
Category: 
Keyword: 
wireless ad-hoc network, packet aggregation, network coding, VoIP, 
 Summary | Full Text:PDF
Variety of Effects of Decoherence in Quantum Algorithms
Jun HASEGAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/05/01
Vol. E92-A  No. 5  pp. 1284-1292
Type of Manuscript:  INVITED PAPER (Special Section on Frontier of Quantum Computing)
Category: 
Keyword: 
decoherence, quantum algorithms, Grover's database search, quantum walks, quantum circuits, 
 Summary | Full Text:PDF
Genesis of the Mechanical Heart Valves' Ultrasonic Closing Clicks
Jun HASEGAWA Kenji KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2009/04/01
Vol. E92-D  No. 4  pp. 717-722
Type of Manuscript:  PAPER
Category: Biological Engineering
Keyword: 
mechanical heart valve, clicks, ultrasonic closing clicks, cavitaion, in vitro experiment, 
 Summary | Full Text:PDF
A Quantum Protocol to Win the Graph Colouring Game on All Hadamard Graphs
David AVIS Jun HASEGAWA Yosuke KIKUCHI Yuuya SASAKI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/05/01
Vol. E89-A  No. 5  pp. 1378-1381
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: 
Keyword: 
graph colouring game, pseudo-telepathy, Hadamard graph, quantum chromatic number, 
 Summary | Full Text:PDF
Ultrasonic Closing Click of the Prosthetic Cardiac Valve
Jun HASEGAWA Kenji KOBAYASHI Hiroshi MATSUMOTO 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 1998/12/25
Vol. E81-D  No. 12  pp. 1517-1521
Type of Manuscript:  LETTER
Category: Bio-Cybernetics and Neurocomputing
Keyword: 
prosthetic cardiac valve, closing click, ultrasonic click, audible click, 
 Summary | Full Text:PDF
Noninvasive Diagnosis of Cerebrovascular Diseases Based on the Characterisitics of Blood Flow Noise
Jun HASEGAWA Kenji KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1995/12/25
Vol. E78-A  No. 12  pp. 1634-1639
Type of Manuscript:  Special Section PAPER (Special Section on Acoustic Diagnosis)
Category: 
Keyword: 
cerebrovascular disease, bruit, PVDF, FFT, Wigner distribution, 
 Summary | Full Text:PDF
Time–Frequency Domain Analysis of the Acoustic Bio–Signal--Successful Cases of Wigner Distribution Applied in Medical Diagnosis--
Jun HASEGAWA Kenji KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/11/25
Vol. E77-A  No. 11  pp. 1867-1869
Type of Manuscript:  Special Section LETTER (Special Section of Letters Selected from the 1994 IEICE Spring Conference)
Category: 
Keyword: 
acoustic bio–signal, Wigner distribution, local moment, intracranial vascular deformations, prosthetic valve, 
 Summary | Full Text:PDF
Noninvasive Detection of Intracranial Vascular Deformations by Bruit Transducer and Spectral Analysis
Kenji KOBAYASHI Jun HASEGAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1994/11/25
Vol. E77-A  No. 11  pp. 1870-1871
Type of Manuscript:  Special Section LETTER (Special Section of Letters Selected from the 1994 IEICE Spring Conference)
Category: 
Keyword: 
noninvasive measurement, bruit sensor, PVDF, cerebral aneurysm, intracranial stenosis, 
 Summary | Full Text:PDF