Book review: deciphering Sun Tzu: how to read the art of war by Derek M Yuen

Derek M Yuen aims to offer readers a fresh and comprehensive analysis of Sun Tzu’s celebrated treatise The Art of War. Gavin E Hall recommends the book to those interested in strategic commentary

Efficient Direct Detection of M-PAM Sequences with Implicit CSI Acquisition for The FSO System

Compared to on-off keying (OOK), M-ary pulse amplitude modulation (M-PAM, M>2) is more spectrally efficient. However, to detect M-PAM signals reliably, the requirement of accurate channel state information is more stringent. Previously, for OOK systems, we have developed a receiver that requires few pilot symbols and can jointly detect the data sequence and estimate the unknown channel gain implicitly. In this paper, using the same approach, we extend our previous work and derive a generalized receiver for M-PAM systems. A Viterbi-type trellis-search algorithm coupled with a selective-store strategy is adopted, resulting in a low implementation complexity and a low memory requirement. Therefore, the receiver is efficient in terms of energy, spectra, implementation complexity and memory. Using theoretical analysis, we show that its error performance approaches that of maximum likelihood detection with perfect knowledge of the channel gain, as the observation window length increases. Also, simulation results are presented to justify the theoretical analysis.Comment: 6 page

Hong Kong Medical Forum, 1996: programme book : 13th - 14th July 1996, Hotel Furama Kempinski Hong Kong

Cover title.published_or_final_versionPrevention and screening in osteoporosis Seeman, Ego Seeman, Ego 5Acknowledgment 25ProgrammeCurrent treatment of non-small cell carcinoma of lung (NSCLC) based on staging Lam, Wah-kit Lam, Wah-kit 18Organizing committeeManagement of coronary artery disease: Drugs, PTCA or surgery? Ho, David Ho, David 22Welcome message Lam, Shiu-kum Lam, Shiu-kumStrategies for the treatment of heart failure Ikram, Hamid Ikram, Hamid 19Diastolic heart failure Ikram, Hamid Ikram, Hamid 24Management of acute myocardial infarction Lau, Chu-pak Lau, Chu-pak 20Gene therapy for respiratory disease Geddes, Duncan M. Geddes, Duncan M. 15Advances and controversies in sleep related breathing disorders Ip, Mary Ip, Mary 16Rapid diagnosis of cytomegalovirus and other viral infections Peiris, Joseph Sriyal Malik Peiris, Joseph Sriyal Malik 14HIV/AIDS: learning from new findings Lee, Shui-shan Lee, Shui-shan 13Update on methods if diagnosis for tuberculosis Yuen, Kwok-yung Yuen, Kwok-yung 12The genetics of asthma Geddes, Duncan M. Geddes, Duncan M. 17Inhitors of bone resorption and stimulators of bone formation Seeman, Ego Seeman, Ego 10The role of calcium and vitamin D in osteoporosis Kung, Annie W.C. Kung, Annie W.C. 9The epidemiology of osteoporotic fracture of proximal femur and is outcome in Hong Kong Chiu, Kwong-yuen, Peter Chiu, Kwong-yuen, Peter

On the Number of Circuit-cocircuit Reversal Classes of an Oriented Matroid

The first author introduced the circuit-cocircuit reversal system of an oriented matroid, and showed that when the underlying matroid is regular, the cardinalities of such system and its variations are equal to special evaluations of the Tutte polynomial (e.g., the total number of circuit-cocircuit reversal classes equals $t(M;1,1)$, the number of bases of the matroid). By relating these classes to activity classes studied by the first author and Las Vergnas, we give an alternative proof of the above results and a proof of the converse statements that these equalities fail whenever the underlying matroid is not regular. Hence we extend the above results to an equivalence of matroidal properties, thereby giving a new characterization of regular matroids.Comment: 7 pages. v2: simplified proof, with new statements concerning other special evaluations of the Tutte polynomia

A ghost tour in Rouge = 遊魂《胭脂扣》

This paper discusses how Fleur\u27s association to some of the worldwide ghost tours insinuates the haunting quality of the past, time, and the cityscape; in other words, it discusses how the tragic love story between Fleur and Twelfth Master can also be allegorically read as a tragic cultural story of Hong Kong. This discussion allegorically reads Fleur, Twelfth Master and Yuen as figures hauled by modernity