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26th IEEE International Conference on Advanced Information Networking and Applications Workshops, WAINA 2012

作者： Murakami, Fumiaki Komoriya, Kenji Uda, Ryuya Gohshi, Seiichi Echizen, Isao Computer Science Program Tokyo University of Technology Graduate School Hachioji city Japan Kogakuin University Shinjuku ward Japan National Institute of Informatics Chiyoda ward Japan

ISBN: (纸本)9780769546520

There are two methods for detecting videos illegally recorded in theaters. One uses digital watermarks to identify on what dates and in what theaters such videos were recorded. The other method uses infrared light, which degrades such videos by using the difference between human and device sensitivities. However, neither method detects the act of recording a video. Therefore, these methods are not the best to prevent movies from being illegally recorded. Our previously proposed method uses reflected infrared light to identify places where surreptitious filming takes place (in this paper, we call a camera used for surreptitious filming a surreptitious filming camera (SFC)). This method focuses infrared light on places where surreptitious filming takes place and disrupts it. In addition, this method distinguishes camera lenses from other lenses, such as those for eyeglasses, to analyze the RGB of reflected infrared light. However, this method cannot capture reflected infrared light depending on a SFC's location and direction. As a result, we propose using a moving infrared detection camera (IDC) to solve these problems and a method for more effectively detecting reflected infrared light. © 2012 IEEE.

关键词： Infrared radiation

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Improved contact prediction in proteins: Using pseudolikelihoods to infer Potts models

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Physical Review E 2013年第1期87卷 012707-012707页

作者： Magnus Ekeberg Cecilia Lövkvist Yueheng Lan Martin Weigt Erik Aurell Engineering Physics Program KTH Royal Institute of Technology 100 44 Stockholm Sweden Department of Computational Biology Alba Nova University Center 106 91 Stockholm Sweden Department of Physics Tsinghua University Beijing 100084 P.R. China Université Pierre et Marie Curie UMR7238—Laboratoire de Génomique des Microorganismes 15 rue de l'Ecole de Médecine 75006 Paris France ACCESS Linnaeus Center KTH Royal Institute of Technology 100 44 Stockholm Sweden Aalto University Department of Information and Computer Science PO Box 15400 FI-00076 Aalto Finland

Spatially proximate amino acids in a protein tend to coevolve. A protein's three-dimensional (3D) structure hence leaves an echo of correlations in the evolutionary record. Reverse engineering 3D structures from such correlations is an open problem in structural biology, pursued with increasing vigor as more and more protein sequences continue to fill the data banks. Within this task lies a statistical inference problem, rooted in the following: correlation between two sites in a protein sequence can arise from firsthand interaction but can also be network-propagated via intermediate sites; observed correlation is not enough to guarantee proximity. To separate direct from indirect interactions is an instance of the general problem of inverse statistical mechanics, where the task is to learn model parameters (fields, couplings) from observables (magnetizations, correlations, samples) in large systems. In the context of protein sequences, the approach has been referred to as direct-coupling analysis. Here we show that the pseudolikelihood method, applied to 21-state Potts models describing the statistical properties of families of evolutionarily related proteins, significantly outperforms existing approaches to the direct-coupling analysis, the latter being based on standard mean-field techniques. This improved performance also relies on a modified score for the coupling strength. The results are verified using known crystal structures of specific sequence instances of various protein families. Code implementing the new method can be found at http://***/.

关键词： AMINO acid sequence AMINO acids PROTEIN structure STATISTICAL mechanics PROTEINS -- Models

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Prospects and limitations of Organic Thin Film Transistors (OTFTs)

Prospects and limitations of Organic Thin Film Transistors (...

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2nd International Conference on computer science, Engineering and Applications, ICCSEA 2012

作者： Kaushik, B.K. Kumar, Brijesh Negi, Y.S. Mittal, Poornima Department of Electronics and Computer Engineering Indian Institute of Technology Roorkee 247667 India Polymer Science and Technology Program DPT Indian Institute of Technology Roorkee 247667 India Department of Electronics and Communication Engineering Graphic Era University Dehradun 248001 India

ISBN: (纸本)9783642301100

Organic Transistor (OT) modeling, fabrication and applicability has undergone remarkable progress during last ten years. Organic Thin Film Transistors (OTFTs) have received significant attention recently because of their considerable utility. They can be fabricated at lower temperature and significantly reduced cost as compared to Hydrogenated Amorphous Silicon Thin Film Transistors (a-Si: H TFTs). Fabrication of OTFTs at low temperature allows utilization of wide range of substrates, thereby permitting usage of organic transistors as future candidate for many low-cost electronics applications that require flexible polymeric substrates such as RFID tags, smart cards, electronic paper, and active matrix flat panel displays. This paper provides detailed insight of OTFTs, their operating principles, device materials and various structures such as Top Gate Top Contact (TGTC), Top Gate Bottom Contact (TGBC), Bottom Gate Top Contact (BGTC) and Bottom Gate Bottom Contact (BGBC). Although OTFTs find tremendous and widespread applications, but is marred by few limitations related to factors such as speed, compatibility, stability, degradability and variability. This paper comprehensively discusses the performance and limitations of OTFTs. © 2012 Springer-Verlag GmbH.

关键词： Electronic paper

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Label-free multimodal nonlinear optical microscopy for in vivo diagnosis of precancerous squamous epithelia

Label-free multimodal nonlinear optical microscopy for in vi...

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Biomedical Optics, BIOMED 2012

作者： Teh, Seng Khoon Zheng, Wei Li, Shuxia Li, Dong Zeng, Yan Yang, Yanqi Qu, Jianan Y. Biomedical Engineering Program Division of Bioengineering HKG China Biomedical Engineering Program Department of Electronic and Computer Engineering Hong Kong University of Science and Technology Hong Kong Hong Kong Faculty of Dentistry University of Hong Kong Hong Kong

We explore in vivo diagnostic utility of an in-house developed multimodal nonlinear optical microscopy for detection of squamous epithelia precancer. Our results reveal all epithelial sublayers and stroma provide sign... 详细信息

ISBN: (纸本)9781557529428

关键词： Nonlinear optics

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Nanobiocomposite-based Bienzyme Screen-printed Electrode For Glucose Monitoring

Nanobiocomposite-based Bienzyme Screen-printed Electrode For...

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International Conference on Management, Manufacturing and Materials Engineering (ICMMM 2011)

作者： Pakapongpan, Saithip Thachepan, Surachai Poo-arporn, Yingyot Palangsuntikul, Rungtiva Nanoelectronics and MEMs Laboratory National Electronics and Computer Technology Center (NECTEC) Thailand Department of Chemistry Faculty of Science Kasetsart University Thailand Synchrotron Light Research Institute Thailand Biological Engineering Program King Mongkut's University of Technology Thonburi Thailand

ISBN: (纸本)9783037853511

Multi-walled carbon nanotubes (MWNTs) were coated first with methylene blue (MB) by noncovalent adsorption and then by horseradish peroxidase (HRP) and glucose oxidase (GOD) by covalent-linking. The MB-MWNTs/GOD/HRP composites formed stable films on screen-printed electrodes (SPE). The electrochemical and electrocatalytic behaviors of the bienzyme modified SPE were studied using cyclic voltammetry (CV) and amperometry. Using the MB-MWNT/GOD/HRP composites, glucose could be calibrated by amperometry at -0.35 V vs. SCE. The optimized response (at pH 7.0) had a sensitivity of 2.4 mA.M-1 and a limit of detection (3xS/N) of 35 mu M. Tests of the portable bienzyme sensor demonstrate its imperviousness to the effects of ascorbic acid, uric acid and p-acetaminophen, as well as its ability to measure glucose concentrations ranging from 0.25 to 2 mM.

关键词： Bienzyme Composite Carbon nanotubes Methylene blue HRP GOD

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Privacy Protection on Transfer System of Automated Teller Machine from Brute Force Attack

Privacy Protection on Transfer System of Automated Teller Ma...

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International Conference on Advanced Information Networking and Applications Workshops (AINAW)

作者： Sho Kurita Kenji Komoriya Ryuya Uda Computer Science Program Graduate School Tokyo University of Technology Hachioji Japan School of Computer Science Tokyo University of Technology Hachioji Japan

Currently, an authentication system used in banks is to protect assets of users. However, these systems are weak against the peeping attack. That is high risk. Therefore, we proposed that a user safely enters credentials and information to transfer money after launching Live CD on stand-alone in place without risk of peeping attack such as a home. The entered information is encrypted by common key crypto system and stored in a QR code. If the peeping attack occurred, this information were protected by using the QR code, also can be high-speed processing. However, if QR codes ware obtained by unauthorized users, they can find out privacy information of owner by reading QR code to a ATM. Therefore, we propose that the system is appended function for privacy protection to the previous method.

关键词： Asynchronous transfer mode Authentication Cryptography Privacy Veins Internet Proposals

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Multiview Playback with Ghost in Required Condition

Multiview Playback with Ghost in Required Condition

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International Conference on Advanced Information Networking and Applications Workshops (AINAW)

作者： Yoshiyuki Tanaka Kenji Komoriya Ryuya Uda Computer Science Program Graduate School Tokyo University of Technology Hachioji Japan School of Computer Science Tokyo University of Technology Hachioji Japan

Modern society has recently had problems with a variety of crimes. Surveillance cameras have been installed in various locations to protect assets from these crimes. When the incident occurred, it is needed to manually find out suspicious people in a large number of footage. Manually extracting prowlers is inefficient in which a lot of surveillance cameras have been installed and have taken a large number of people. Many methods to extract prowler have been proposed. One of the methods, it must give people special devices in advance. The other methods, it does not work without around people in order to extract suspicious behavior compared to around people. To solve the problems, we proposed a method acquiring data of bony framework from the footage using distance sensor to extract suspicious behavior depending on state of each joint. Therefore, it can practically detect suspicious person than those and does not need to give special device. In experimental result, distance errors when mounting distance sensors and cost of mounting are described.

关键词： Servers Smart phones Databases Cameras Surveillance Joints

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Forces of Orthodontic Closed Coil Springs Measured using Fiber Bragg Gratings

Forces of Orthodontic Closed Coil Springs Measured using Fib...

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Latin America Optics and Photonics Conference, LAOP 2012

作者： Milczewski, Maura Scandelari Dinisio, Felipe Gonçalves Martelli, Cicero Borges, Paulo César Kalinowski, Hypolito José da Cunha, José Carlos Munhoz Federal University of Technology - Paraná Curitiba80230-901 Brazil Graduate Program on Electrical Engineering and Applied Computer Science Canada Department of Mechanical Engineering Brazilian Dentistry Association Paraná Brazil

The aim of this study is to compare forces generated by three different orthodontic closed coil springs supplied by three companies, optical fiber Bragg gratins are used to evaluate the force of closing of springs. &#... 详细信息

ISBN: (纸本)9781557529589

关键词： Fiber Bragg gratings

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The Usefulness of Overheard Information for Collision Avoidance in a Single-hop Underwater Acoustic Networks

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Procedia Engineering 2012年 32卷 329-335页

作者： N. Chirdchoo W.-S. Soh K.C. Chua P. Kovintavewat W. Cheunta Telecommunication Program Faculty of Science and Technology Nakhon Pathom Rajabhat UniversityNakhon Pathom 73000 Thailand Department of Electrical and Computer Engineering National University of Singapore Singapore Computer Industrial Technology Program Faculty of Science and Technology Nakhon Pathom Rajabhat UniversityNakhon Pathom73000 Thailand

A MAC protocol that depends on overheard information for its collision avoidance, such as Carrier Sense Multiple Access (CSMA) [1], may not work well in underwater, due to the long propagation delay characteristic of an underwater acoustic (UWA) channel. In such channel, the overheard information may already become obsolete by the time it reaches the node and, thus, should not be taken into account in the collision avoidance mechanism. Intuitively, the degree of usefulness of overheard information plays an important role in determining the network performance for channel listening-based MAC protocols. In this paper, we analytically study the usefulness of overheard information for collision avoidance in two different channel listening-based MAC protocols: (1) CSMA [1] and (2) Aloha-CA [2]. From our study, it is shown that the overheard information is beneficial for collision avoidance only if certain conditions can be satisfied. More specifically, in order for a node that overhears an ongoing transmission to be able to utilize the extracted information for collision avoidance, the node must be within a bounded region that is determined by the relative positions of the sender and the receiver, the packet's transmission time, as well as the length of the packet's header. Based on this analysis, we also present the “usefulness index (U)” which is defined as the degree of usefulness of information overheard.

关键词： Underwater acoustic network MAC protocol design Channel listening Collision avoidance

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Reversible JPEG Data Hiding Based on EMD

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通讯和计算机（中英文版） 2012年第10期9卷 1135-1141页

作者： Wen-Chung Kuo Shao-Hung Kuo Department of Computer Science and Information Engineering National Yunlin University of Science & Technology Yunlin 672 Taiwan Graduate School of Engineering Science and Technology Doctoral Program National Yunlin University of Science and Technology Yunlin 640 Taiwan

As the rapid growth of smart phone technology, people have a lot of digital image information such as digital photos or videos. Both data hiding and data compression are very important technologies in image processing field. On the overview, it seems that there is no relationship between data hiding and data compression because data hiding mechanisms focus on information security and data compression mechanisms emphasize the compression ratio. However, the more secret data is embedded, the more capacity the stego image increases. Actually, they are closely related. Until now, there are many literatures to discuss the secret data how to be embedded into the media image and keeps the original capacity as soon as possible. In this paper, a reversible data hiding scheme based on EMD data hiding and JPEG (Joint Picture Experts Group) compression technology will be proposed. According to experimental results, the authors can prove that our proposed scheme maintains high embedding capacity, security and good compression ratio.

关键词：数据隐藏 JPEG EMD 可逆数字图像信息数据嵌入压缩技术数据压缩

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