The discharge characteristics of the face-to-face and coplanar sustain electrode structures in 42″ full-HD grade test panel were investigated. The UV conversion efficiency (plasma efficiency) was calculated by the vi...
The discharge characteristics of the face-to-face and coplanar sustain electrode structures in 42″ full-HD grade test panel were investigated. The UV conversion efficiency (plasma efficiency) was calculated by the visible emission of 585 nm from the Ne and infrared emission of 823 and 828 nm from Xe in the two different face-to-face and coplanar 6-inch test panels by using the digital photo meter (PR-920) and the spectrometer (diode array rapid analyzer system). The luminance efficiency of the face-to-face and coplanar sustain electrode structure were measured at a 4 % Xe content and a pressure of 450 Torr, and driving frequencies of 100 kHz with a duty ratio of 40 %, respectively. As a result, the UV conversion efficiency (plasma efficiency) of the face-to-face sustain electrode structure was improved by about 1.64 to 1.84 times than the coplanar structure and the luminance efficiency of the face-to-face structure was improved by about 2.03 times than the coplanar structure in the 42″ full-HD grade AC-PDPs.
Chronic obstructive pulmonary disease (COPD) refers to a group of lung diseases that block airflow and cause a huge degree of human suffering. While there is no cure for COPD and the lung damage that results in this d...
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Chronic obstructive pulmonary disease (COPD) is a devastating disease. In this paper, we propose a novel method for scoring of air trapping in the lungs for detection and evaluation of COPD. The proposed method finds ...
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We provide simple and versatile QD transplanting method, which allows well-defined QD patterns down to a few micrometers and also provides compatibility with conventional device fabrication process and device architec...
We provide simple and versatile QD transplanting method, which allows well-defined QD patterns down to a few micrometers and also provides compatibility with conventional device fabrication process and device architecture. We also demonstrate red, green, and blue QLEDs with transplanted QD active layers and characterize them in systematic correlation study between QD pattern morphology and device performances.
In this paper, a novel one‐time programmable (OTP) nonvolatile memory (NVM) device and its array structures based on silicon technology are proposed. There have been many features of OTP NVM devices utilizing various...
In this paper, a novel one‐time programmable (OTP) nonvolatile memory (NVM) device and its array structures based on silicon technology are proposed. There have been many features of OTP NVM devices utilizing various combinations of channel, breakdown region, barrier, and contact materials. However, this invention can be realized by simple materials and fabrication methods: it is silicon‐based materials and fully compatible with the conventional CMOS process. An individual memory cell is a silicon diode vertically integrated. Historically, OTP memories were widely used for read‐only‐memory (ROM) in the central processing unit (CPU) of the computer systems. By implanting the nanoscale fabrication technology into the concept of OTP memory, innovative high‐density NVM appliances for massive storage media becomes very promising. The program operation is performed by breaking down the thin oxide layer between pn doped structure and wordline (WL) and its state can be sensed by the leakage current through the broken oxide. Since this invention is based on neither transistor structure nor charge‐based mechanism, it is highly reliable and functional for the ultra‐large scale integration. The feasibility of its stacked array will be also checked.
The problem of defining the clustering structure in DNA methylation expressions is considered. A Dirichlet process beta mixture model (DPBMM) is proposed that models the DNA methylation data array. The model allows au...
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Nanographene materials have attracted much attention as their unique structures,interesting properties,and promising device ***,we established a high-speed synthesis technique of nanographene employing alcohols and in...
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Nanographene materials have attracted much attention as their unique structures,interesting properties,and promising device ***,we established a high-speed synthesis technique of nanographene employing alcohols and in-liquid plasma,and confirm high crystallinity of synthesized *** this study,growth processes and mechanisms of nanographenes are *** this method,one Ni electrode was immersed into an ethanol,and the other was fixed above the ethanol level at gaseous Ar *** a 9 kV and 60 Hz ac-power to these electrodes,the in-liquid plasma was *** the plasma discharge for 20 minutes,it was found that black-colored nanographenes with a size of microns were dispersed in the *** black substances and yellow-colored extraction liquid were separated by *** sharp G-band peaks at 1581 cm-1 in Raman spectra and the interlayer spacing(3.33 A) between graphite basal planes observed in the transmission electron microscopy(TEM) images revealed the high-crystallinity of synthesized *** the crystallographic properties were not significantly changed owing to the kinds of alcohols and electrode *** the other hand,according to the liquid chromatography analysis,various types of aromatic hydrocarbons were generated in the *** results indicate that the in-liquid plasma discharge induce the dissolution of alcoholic molecules and generation of aromatic hydrocarbons as elementary steps of nanographene ***,the polymerization of the aromatic hydrocarbons results in the nanographene *** results will open the way to further development of high-speed synthesis and precise control of crystallographic properties.
Using a linear variable filter in front of photo-detector array such as CCD or CMOS detector array, we could minimize the impact of stray light and improve the resolution of micro spectrometersUnfortunately, this meth...
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Using a linear variable filter in front of photo-detector array such as CCD or CMOS detector array, we could minimize the impact of stray light and improve the resolution of micro spectrometersUnfortunately, this method could not exhibit the spectral resolution of a parallel filter in the same way, because the transmitted beam from a linear variable filter has broadeningThe broadening becomes limited in the linear variable filter for high-resolution spectral systemsIn this study, through theoretical analysis of the focused beam and the experiments, we developed a method to improve the resolution of micro spectrometerThis method was useful for practical engineering applications.
Radio Frequency Identification (RFID) systems, due to recent technological advances, have been used for various advantages in industries like production facilities, supply chain management etc. However, this can requi...
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Radio Frequency Identification (RFID) systems, due to recent technological advances, have been used for various advantages in industries like production facilities, supply chain management etc. However, this can require a dense deployment of readers to cover the working area. Without optimizing reader's location and number, many of them can be redundant, reducing the efficiency of the whole RFID system. There are many algorithms proposed by researchers to solve redundant reader problem, but all these algorithms are based on omni-directional reader antenna patterns, which is not practical. In this paper we present an algorithm for redundant reader elimination for directional antenna. It uses a radio propagation model and also accounts for loss due to multipath fading to model communication between a reader and a tag. The efficiency of the proposed approach was demonstrated while preserving the tag coverage.
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