In this paper we present a method for reconstructing static scene viewed through thick smoke using multiple images. Based on spatiotemporal statistical approach our method works well on noisy videos containing swirlin...
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In the last two decades, Chaos theory has received a great deal of attention from the cryptographic community. This paper presents two ideas. First idea is using chaotic functions to overcome the weaknesses of the cla...
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In the last two decades, Chaos theory has received a great deal of attention from the cryptographic community. This paper presents two ideas. First idea is using chaotic functions to overcome the weaknesses of the classical Hill cipher. The second idea is proposing a new encoder-decoder architecture, called ChaoEncoDeco, for securing JPEG images. An extra stage of encryption is embedded within the traditional JPEG codec to improve security level of such system. This security stage uses one of the chaotic functions called Logistic Map. This map is used to enhance the Hill cipher and achieve more secure encryption key. The properties of both chaotic system and of the Hill cipher encryption key are all utilized to obtain ultimate secure systems. The proposed encryption algorithm is crypto-analyzed and compared to the standard Hill cipher algorithm. Complete evaluation for the proposed architecture is also performed which indicates the effectiveness of the proposed system.
Thailand has exported longan to international market more than four decades, and China is the main international market. After Thailand and China agreed the ASEAN framework under Free Trade Agreement (FTA) since 2003,...
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Thailand has exported longan to international market more than four decades, and China is the main international market. After Thailand and China agreed the ASEAN framework under Free Trade Agreement (FTA) since 2003, the average volume and value of longan export per year during 2004-2010, grow up to 200,000 tons and 2,737 million Baht respectively. And the average of growth rate per year of volume and value is 18%, 15%. Therefore, the objectives of the research aim to investigate the supply chain performance, collaborative supply chain of exported longan and impact factors under Thailand-China FTA. The results are based upon empirical studies, a grower and an exporter. The questionnaires developed by Q-sort technique, have been intensively employed in order to collect data. As a significant result; this paper finds exporters have high level out of eight factors, it illustrates that good competence in business for this part of supply chain as well as are well-packed and much stronger than the grower. Nevertheless, the results from regression analysis also confirm the relationship of factors in all four models. From these experimental results, both international business and agriculture business have to be emphasized in order to manage longan export.
The disturbance observer (DOB) is one of the widely-used control methods for robust tracking under plant uncertainties and external disturbances. Typically it is implemented by two (so-called) Q-filters as well as an ...
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ISBN:
(纸本)9781612848006
The disturbance observer (DOB) is one of the widely-used control methods for robust tracking under plant uncertainties and external disturbances. Typically it is implemented by two (so-called) Q-filters as well as an inverse model for the nominal plant. Observing that these two Q-filters have identical dynamics, we propose a reduced-order implementation of the conventional DOB configuration. Moreover, we analyze this newly proposed configuration and claim that the robust stability condition, which has been found for the conventional configuration, still holds for the reduced-order case, and the robust transient performance can also be maintained as before with a saturation function introduced in the feedback loop.
For a single-phase grid-connected power system, output power is pulsated instantaneously with a double-fundamental frequency. Accordingly, the current drawn from renewable energy sources tends to be pulsated and conta...
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ISBN:
(纸本)9781457705427
For a single-phase grid-connected power system, output power is pulsated instantaneously with a double-fundamental frequency. Accordingly, the current drawn from renewable energy sources tends to be pulsated and contains low frequency ripple components, which causes several issues including a power harvesting deterioration and energy source's life shortening. This paper proposes a novel power pulsation decoupling scheme to reduce low frequency ripple current with a fast voltage loop. Proper control design based the small-signal model of two-stage dc-dc-ac converter is presented in a frequency domain analysis, and its experimental waveforms are provided to verify the effectiveness.
The paper presents respectively a modeling and a control approach of urban traffic networks, integrated into a software application. These approaches are based on an agent-oriented methodology and have as a goal the p...
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In order to improve the accuracy of line losses calculation, and reducing the time-consumption calculation, this paper proposed a novel calculation based on support vector machine for line losses. This paper used supp...
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Since being introduced into domestic measurement field during the 1980's, grating-shape capacitive sensors have played an important role in due to their high accuracy and low cost compared to ordinary capacitive s...
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This study develops and implements a SoC-based HW/SW (Hardware-Software) codesign for an intelligent diagnostic system. To improve the efficiency of the VLSI (Very Large Scale Integration) design process, the componen...
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Most of embedded cross compiler tools are cross-compilers based on glibc and Linux kernel in the form of ARCH-Hnux-*. They are mainly for Linux operating system, depending on specified C language library glibc, and al...
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