This paper designs a personalized navigation service based on the student cognitive levels. The personalized navigation service takes the interpretive structural modeling to generate concept navigation matrix by using...
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In this work, we proposed a direct computation of the DCT algorithm that is improved by utilizing the coefficients of cosine and sine to calculate the DCT bins for Mel-scale frequency cepstral coefficients (MFCC). Ins...
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Reports of enhanced sintering rates associated with microwave heating may be due to nonthermal lattice fluctuation statistics. Recent theoretical analyses reviewed in this paper confirm the feasibility of this phenome...
Reports of enhanced sintering rates associated with microwave heating may be due to nonthermal lattice fluctuation statistics. Recent theoretical analyses reviewed in this paper confirm the feasibility of this phenomenon for a wide variety of situations involving very different microwave absorption mechanisms. For materials with weak microwave absorption coefficients, the effect is expected to be uniformly distributed throughout the volume. For strongly absorbing materials, however, the effect is expected to be concentrated near the material surface, with a characteristic exponential penetration dept. of Lnt ∼ 10 − 100 μm. An “observable” nonthermal effect depends on the relative magnitude of the microwave electric field strength ¦E¦ and the lattice ion energy relaxation rate γ with the most pronounced effects occurring for larger values of ¦E¦ and smaller values of γ.
In this paper, we propose spatio-spectral processing techniques for the detection of dust storms and automatically finding its transport direction in 5-band NOAA-AVHRR imagery. Previous methods that use simple band ma...
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Explainability in Artificial Intelligence is gaining increasing importance, especially in critical fields. In biomedical applications, attribution maps are particularly relevant for their inherent spatial localization...
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Medical knowledge extraction has great potential to improve the treatment quality of hospitals. In this paper, we propose a clinical problem-action relation extraction method. It is based on clinical semantic units an...
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ISBN:
(纸本)9781450325981
Medical knowledge extraction has great potential to improve the treatment quality of hospitals. In this paper, we propose a clinical problem-action relation extraction method. It is based on clinical semantic units and event causality patterns in order to present a chronological view of a patient's problem and a physician's action. Based on our observation, a clinical semantic unit is defined as a conceptual medical knowledge for a problem and/or action. Since a clinical event is a basic concept of the problem-action relation, events are detected from clinical texts based on conditional random fields. A clinical semantic unit is segmented from a sentence based on time expressions and inherent structure of events. Then, a clinical semantic unit is classified into a problem and/or action relation based on event causality features in support vector machines. The experimental result on Korean medical collection shows 78.8% in F-measure when given the answer of clinical events. This result shows that the proposed method is effective for extracting clinical problem-action relations.
We demonstrated a single cell migration chip which can emulate cancer cell invasion in lymphatic capillaries through a migration channel with resistance choke points. Using a hydrodynamic capturing scheme based on the...
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ISBN:
(纸本)9780979806452
We demonstrated a single cell migration chip which can emulate cancer cell invasion in lymphatic capillaries through a migration channel with resistance choke points. Using a hydrodynamic capturing scheme based on the difference in flow resistance, the device allows for positioning single cells at the start of a migration channel. Different sizes of the resistance choke points in the migration channels are investigated to characterize the deformation capability of cells. To verify the migration platform, we used p38γ gene knockdown MDA-MB-231 (breast cancer) cells, which are known to show lower lymphatic metastasis in-vivo in a separate study. The reduction of the invasive ability in lymphatic capillaries was confirmed by the fabricated migration chip.
The connectivity of the nervous system of the nematode Caenorhabditis elegans has been described completely, but the analysis of the neuronal basis of behavior in this system is just beginning. Here, we used an optimi...
The connectivity of the nervous system of the nematode Caenorhabditis elegans has been described completely, but the analysis of the neuronal basis of behavior in this system is just beginning. Here, we used an optimization algorithm to search for patterns of connectivity sufficient to compute the sensorimotor transformation underlying C. elegans chemotaxis, a simple form of spatial orientation behavior in which turning probability is modulated by the rate of change of chemical concentration. Optimization produced differentiator networks with inhibitory feedback among all neurons. Further analysis showed that feedback regulates the latency between sensory input and behavior. Common patterns of connectivity between the model and biological networks suggest new functions for previously identified connections in the C. elegans nervous system.
PVD-TixSiyNz films formed by reactive RF-magnetron co-sputtering of Ti and Si in Ar/N2 are evaluated as a diffusion barrier between Cu and Si. A complete range of compositions are obtained by Ti targets inlaid with Si...
PVD-TixSiyNz films formed by reactive RF-magnetron co-sputtering of Ti and Si in Ar/N2 are evaluated as a diffusion barrier between Cu and Si. A complete range of compositions are obtained by Ti targets inlaid with Si. Film composition is controlled by the target ratio of titanium to silicon and N2 partial pressure. Electrical results versus thermal history for films of ∼6-18% Si as well as the composition and microstructure as determined by Rutherford back scattering (RBS), TEM and electron diffraction are reported. These films are an amorphous matrix with imbedded nanocrystals of titanium nitride as-deposited and undergo phase separation to yield titanium nitride and silicon nitride after a 1000r.C anneal. As-deposited compositions which lie above the TiN-Si3N4 phase line yield crystals of TiN. Compositions below the TiN-Si3N4 phase line yield crystals of Ti2N. Bulk resistivity as-deposited (<400µΩ-cmµ) is acceptable for use as a contact liner/barrier material and improves with annealing. Si pn-diodes metallized with 20nm Ti40Si15N45 and Cu show no significant increase in reverse leakage current at anneal temperatures below 700r.C.
This study introduced a capacitive sensing interactive game platform aimed at promoting emotional stability, which we have named the 'Sunrise and Sunset' game. This game primarily consists of two pieces of reg...
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