The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Proactively pushing content to users has emerged as a promising way of coping with the explosively growing traffic demand of next-generation mobile networks. However, it is still unclear whether content pushing can improve the energy efficiency of hard delay-constrained communications over additive white Gaussian noise (AWGN) channels. With pushing, the energy consumption can be reduced by increasing...
In this paper, we proposed a compact quad-band bandpass filter (BPF) using multilayer substrate technique. The filter is designed to have quad-band at 1.8, 2.4, 3.5 and 4.2 GHz. The four passbands are simultaneously generated by controlling the impedance and length ratios of the stub-loaded stepped impedance resonators (SIRs). By using the stub-loaded SIRs, the filter with closed passbands can be...
This paper presents a novel wearable complementary split-ring resonator (CSRR) sensor for smart clothing to measure cardiorespiratory signs. The cardiorespiratory vital signs can be measured in the frequency and amplitude deviations of CSRR caused by the slight displacement from the chest. The heart signals can be extracted from the respiratory signals simultaneously by using a high sensitive CSRR...
We demonstrate an attempt on seismic oceanography (SO) study by using seismic “noise” for imaging Kuroshio Current in the offshore Taiwan. The Kuroshio around Taiwan has moderate seasonal variation but with complicated spatial distribution. Multi-Channel Seismic (MCS) reflection profiling has the advantages for detecting any impedance changes associated with physical processes (temperature, salinity,...
Spectrum database plays an increasingly important role in spectrum measurements and monitoring, which lays foundations for accurate and real-time spectrum sensing in future cognitive radio networks. A successful identification of the channel propagation model is of great importance to construct spectrum database so as to give an accurate picture of spectrum use in real-world environments. In this...
In this paper, we propose a sparse and low-rank optimization approach for network topology control in the partially connected fog radio access network (Fog-RAN). In this model, the sparsity of the modeling matrix represents the number of non-connected interference links, while the rank of the matrix models the achievable symmetric degrees-of-freedom (DoF) allocations. This model helps find the network...
It is well known that the fragmentation of Android ecosystem has caused severe compatibility issues. Therefore, for Android apps, cross-platform testing (the apps must be tested on a multitude of devices and operating system versions) is particularly important to assure their quality. Although lots of cross-platform testing techniques have been proposed, there are still some limitations: 1) it is...
This paper presents a novel microchip integrated with a GHz complementary split-ring resonator (CSRR) and a microfluidic channel for non-contact detecting the ionic strength of solutions. An upper C-ring resonator induced with an underneath linear micro-strip is used to generate the complementary resonance. The induced electromagnetic resonance is sensitive to surrounding material properties including...
Operation services are reusable and shareable units of configuration code executed by configuration management tools (CMTs), achieving continuous deployment and continuous delivery. With the prevalence of DevOps (Development and Operations), thousands of operation services have been developed for various software systems, and they are publicly available through the online repositories of popular CMTs...
The inaccuracy of CNC machining may come from several factors, such as machine vibration, dynamic stiffness, and thermal expansion. Once a workpiece is machined inaccurately, we can modify the NC program to generate compensation tool paths, and then perform the finishing process. However, the modification of the NC code is time-consuming, and the results may not be satisfactory as well. We propose...
The Taiwan Mandarin Radio Speech Corpus consists of roughly 300 (and growing) hours of audio recordings, selected from Taiwan's National Education Radio (NER) archive. The corpus includes speech from hundreds of speakers and various speech styles (spontaneous conversational and read news). This corpus provides a rich resource for research in speech and automatic speech recognition (ASR). In this paper,...
Understanding the causality behind the observational data is of great importance to a lot of real world applications, e.g., the improvement of Quality of Service. Non-Gaussianity has been exploited in numerous causal discovery methods for observational linear acyclic data. Transforming non-Gaussianity into indirect metrics is a conventional solution employed by existing methods, although this usually...
The pLDMOS related devices fabricated by a TSMC 0.25 µm 60 V process was investigated in this paper. For the ESD improvement, some DUTs inserting the N+ zone to form an embedded SCR in the drain end or guard-ring area, respectively. From the TLP testing results, the It2 values of the drain parasitic SCR npn-type and pnp-type could reach > 7 A, higher than that of the traditional pLDMOS device....
This paper proposes a fast algorithm based on depth map segmentation for the depth coding of 3D video coding to reduce the coding complexity of the depth map. The proposed algorithm segments the depth map into different regions by modifying automatic thresholding technique. We also propose the search range adjustment according to the classification of the coding tree unit (CTU). The early termination...
The wound care management of bedsore is important to long-term bedridden patients. The wound size is usually monitored by a consumer-graded camera and then calculated by computer-aided analysis. In this paper, we simulated a subcutaneous and dermal injury using vacuum cupping experiment and performed multispectral imaging with three wavelengths, including active 650 nanometers red light and 940 nanometers...
Sequence data are sometimes rare, non-linear and non-normal, the models form grey theory are just suitable for this kind of scenario. An generalized version of originally GM(1,1) is described that takes power exponent, smoothing factor, initial condition and residual modification into account. In order to alleviate the tediousness of manual parameter selection and the problem of over- fitting in training...
This paper proposes dynamic ramp control in current-mode adaptive on-time control for Buck converter on chip. It improves system stability and reduces output voltage at the load release. The concept of dynamic ramp control uses sample and hold circuit, comparator, and ramp valley control circuit adjusted according to the varied ramp signal to avoid the generation of an error pulse signal to regulate...
In this paper, we review recent advances in high speed optical short reach transmission systems. Recent progress on advanced modulation formats, DSP, transmission schemes and devices are discussed.
We experimentally apply MC-CDMA based on OFDM to a 2-meter transmission phosphor-based LED VLC system. MC-CDMA provides highly uniform per-user performances and thus enhances the available communication bandwidth.
This paper presents a budgetary learning algorithm for online multiclass classification. Based on the multiclass passive-aggressive learning with kernels, we introduce a dual perspective that gives rise to the proposed budgetary algorithm. Basically, the proposed algorithm limits the amount of data in use and fully exploits the available data on hand through optimization. The algorithm has both constant...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.