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In this study, low-profile planar triple symmetric arms dipole antenna is proposed for wireless communication applications. Three symmetric arms are etched on the metallic layer of a single sided printed circuit board to form the planar dipole antenna. The size parameters of symmetric arms are changed to design and fabricate the antenna which can be operated at 900/1800/2450 MHz successfully. We use...
Compressed sensing has attracted much attention in researches due to its new thoughts and superior performances in data compression. For the delivery of compressed information, because it is vulnerable to channel errors during transmission, error control for compressed information has long been a practical topic for researches and applications. In this paper, we aim at the error control of compressed...
It has been an important issue to improve customers' satisfaction in theme parks for which become a major role of recreation in our daily life. Waiting for rides has been identified as a factor decreasing satisfaction. A previous study indicated that a virtual queuing system can reduce the total waiting time so the customer's satisfaction is improved. The results from a simulation tool Arena show...
Reversible data hiding has emerged in recent years, and it has the fundamental requirement of reversibility. For reversible data hiding, secret information is embedded into original image with devised algorithms, and the marked image should be delivered to the decoder without any damage. For decoding, both the embedded secret and original image should be recovered perfectly. With these characteristics,...
Compressive sensing is a potential technology for lossy image compression. With a given quality, we may represent an image with a few significant coefficients in the transform domain. When the number of the significant coefficients is much less than the number of the pixels, the assumption of sparse representation is satisfied. Based on the sparse modeling theories, an image could be sensed with a...
Hiding data into images can be referred to as a constrained optimization problem. Hence, we proposed a reversible genetic watermarking scheme based on the wavelet packet transform in this paper. Genetic algorithm is used to select an appropriate basis from permissible bases of wavelet packet transform to increase the robustness of the embedded data, and the binary string to be hidden is embedded into...
A hand injury can have great impact on a person's daily life. However, the current manual evaluations of hand functions are imprecise and inconvenient. In this research, a data glove embedded with 6-axis inertial sensors is proposed. With the proposed angle calculating algorithm, accurate bending angles are measured to estimate the real-time movements of hands. This proposed system can provide physicians...
In recent years, because of the effects of low birth rates, developed countries are not only encountering aging population issues but also facing a shortage of quality care for the aged and disabled. Most senior and long-term care providers have difficulty recruiting and retaining a sufficient number of skillful caregivers because a caregiver is usually burdened with monitoring many people whose physical...
Brain computer interface (BCI) is a communication system to establish a communication interface between the brain and the device. Motor imagery-based brain computer interface is one of asynchronous BCIs, and have been widely developed in recent years. However, most of motor imagery-based BCI require bulk EEG machines, and lots of EEG data have to be transmitted to the back-end computer for analysis...
Swallowing difficulty is also called dysphasia. It is usually a sign related to the problems of your throat or oesophagus the muscular tube that moves food and liquids from the back of your mouth to your stomach. These diseases are the common problem in people who have problems of the brain or nervous system. Surface electromyography (sEMG) signals provide the valuable information about the changes...
The rapid development of Internet application leads to the problem of the IPv4 address exhaustion. How to efficiently promote the IPv6 upgrade to foster the development of IP network and relevant industries becomes an important issue. Therefore, in this paper, we construct an IPv6 virtual lab with the Multi-level Training Mechanism (MTM). It consists of three levels, the basic training, the simulation-based...
From global Internet information, IPv6 traffic grows slowly. A large portion of service providers are still using IPv4 even IPv6 co-exists with IPv4 for long time. However, IPv6 traffic are gradually growing especially most of network backbone sides. This paper proposes an enhancement mechanism of IPv4-in-IPv6 which supports IPv6 natively and provides IPv4 connectivity by using IPv4-in-IPv6 tunneling,...
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