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Taiwanese economy is extremely export-oriented. However, Taiwan also starts to actively look for opportunities for participation, because of the slowdown of multinational liberalizations, and as a result of the advance of the regional economic integration trend. As an example, Taiwan vigorously participates in FTAs with countries in Asia and Central America. International economic conditions are significantly...
This paper describes a database system with tenant technology on Eucalyptus platform for a rural drinking water supply system. This database use a sharing model to store data and a tenant placement algorithm to properly put tenants in virtual machine therefore it can ensure the service quality for the tenants with the minimum use of hardware resources. The experiment results show that the tenant placement...
Extreme weather always brings potential risk to driving, which leads to people's life and property being put into great dangers. Therefore, the automatic recognition of extreme weather plays an important role in the application of the highway traffic condition warning, automobile auxiliary driving, climate analysis and so on. Generally, multiple sensors are adopted in traditional methods of automatic...
We consider a large-scale road network in Eastern Massachusetts. Using real traffic data in the form of spatial average speeds and the flow capacity for each road segment of the network, we convert the speed data to flow data and estimate the origin-destination flow demand matrices for the network. Assuming that the observed traffic data correspond to user (Wardrop) equilibria for different times-of-the-day...
AT-cut Quartz crystal Microbalance (QCM) has been used as a high precision sensor for decades, which could detect the trace mass deposited on the crystal surface. The accuracy of QCM can be achieved ng level. When used as biosensor in liquid, the resonant frequency is not only affected by the mass change, but also by the liquid density and viscosity, which are greatly dependent on the liquid temperature...
Currently, cloud computing is experiencing the rapid development. However, cloud migration is firstly required for the adaptation of some application systems to new cloud computing environments. Consequently, theories and strategies of the cloud migration research have emerged to be hot spots. In spite of the availability of many successful economic plans and technical schemes in this field, few guiding...
At present, research of Mesos is in the early stage. Because of the two-level hierarchical scheduling, Mesos doesn't take the whole cluster into consideration in resource scheduling, which could cause load imbalance and low resource utilization. To solve above-mentioned problem, this paper proposed a resource adjustment plan based on an improved artificial fish swarm algorithm, it adopts a new behavior...
Cone beam computed tomography (CBCT) has widely applied in dental procedures at present days compared with computed tomography (CT). The artifacts caused by beam hardening phenomenon can affect the quality of image after reconstruction. And this would affect the diagnosis of diseases of patients. Some techniques from the hardware and software proposed by researchers can efficiently reduce the beam...
This paper compared the fatigue damage accumulation of the gold-tin eutectic die attach layer in different high electron mobility transistor (HEMT) packages with various types of die attach layers and substrates under thermal cyclic loading. The fatigue damage per cycle used in this study was characterized by the accumulation of plastic work, which was derived by the finite element analysis (FEA)...
In this paper, the effects of newly defined solder geometric factors in a 2-pad LED lighting assembly on the reliability of Land Grid Array solder joints are investigated by adopting the methodology that we derived from our previous work. This has been done by conducting a series of FEM simulations to establish a response surface model for LED package geometric parameters to predict solder joint reliability...
We propose and experimental demonstrate an elastic-bandwidth access scheme using spectrum-sliced incoherent light (SSIL) source with adaptive OFDM modulation in WDM-PON. We optimize the frequency efficiency of SSIL source by adaptive algorithm.
A sliding mode based active center of gravity control law is designed for the aircraft with center of gravity varying during flight. As the basis, the general scheme of the active center of gravity control system is proposed, and the mathematic model of aircraft center of gravity varying with fuel transfer is established. Then, the center of gravity control law based on sliding mode control theory...
Base station sleep mode is an effective method to reduce the energy consumption of cellular networks. Taking into account a cellular network, its central base station (BS) can turn into sleep mode when the traffic is low and the users in this cell can access to neighbor active cells. A user offloading algorithm for the sleeping cell is investigated. The energy consumption of the cellular network in...
Energy efficiency is considered a critical technical parameter for the performance evaluation, sizing, and design of control strategies of grid-connected battery systems. Therefore, measurement of the energy efficiency of grid-connected battery systems is necessary. In this paper, the experimental evaluation and measurement of the energy efficiency of a small-scale grid-connected NiMH battery system...
Active center of gravity control can transfer fuel among many fuselage fuel tanks to effectively optimize aircraft center of gravity and gain the potential economic performance benefits. In-flight possible failures in the fuel system may generate direct influences on aircraft center of gravity control. The aim of this article is to investigate the influence of partial fuel transfer line leak on the...
Infrared videos from transmission line inspection of UAV have a large amount of data with low SNR (Signal to Noise Ratio). Identifying heat defects automatically using infrared videos is difficult and inefficient. In this paper, an advanced method is proposed. Firstly, points with excessive value of the component regions according to conductors are analyzed in their neighbors to obtain defect points...
Spectrum prediction, as one enabling technique for dynamic spectrum access (DSA), has recently been received ever-increasing research attention. Most related studies (explicitly or implicitly) assume that spectrum prediction is useful for DSA. However, it does't fundamentally clear when spectrum prediction is really beneficial. To address this issue, this paper firstly provides a high-level review...
This paper presents the investigation of the effects of Silicon-Carbide Schottky Barrier Diodes (SiC SBDs) on the switching transient performance of a SiC MOSFETs-based Bidirectional Switching Power Pole (BSPP). The investigation was focused on the contribution of the SiC SBDs in reducing the overshoot in the drain current when they are connected as freewheeling diodes. A double pulse test (DPT) is...
Aircraft center of gravity control is an important technology to gain potential performance benefits. In-flight center of gravity control is usually based on a fuel transfer system which enables fuel to be transferred among fuselage fuel tanks and then adjust aircraft center of gravity. The aim of this article is to systematically investigate the influences of partial fuel pump failures on the CG...
Spectrum data, which is usually characterized by many dimensions, such as location, frequency, time and signal strength, presents formidable challenges in terms of acquisition, processing and visualization. In practice, a portion of spectrum data entries may be unavailable due to the interference during the acquisition process or the compression during the sensing process. However, the completion...
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