• Title, Summary, Keyword: Morphology

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A STUDY ON DTCNN APPLYING FUZZY MORPHOLOGY OPERATORS (퍼지 형태학 연산자를 적용한 DTCNN 연구)

  • 변오성;문성룡
    • Proceedings of the IEEK Conference
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    • pp.13-16
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    • 2000
  • This paper is to compare DTCNN(Discrete-time Cellular Neural Networks) applying the fuzzy morphology operators with the conventional FCNN(Fuzzy CNN) using the general morphology operators. These methods are to the image filtering, and are compared as MSE. Also the main goal of this paper is to compare the fuzzy morphology operators with the general morphology operators through image input. In a result of computer simulation, we could know that the error of DTCNN applying the fuzzy morphology operators is less about 6.1809 than FCNN using the general morphology operators in the image included 10% noise, also the error of the former is less about 5.5922 than the latter in the image included 20% noise. And the image of DTCNN applying the fuzzy morphology operators is superior to FCNN using the general morphology operators.

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Polyetherimide/Dicyanate Semi-interpenetrating Polymer Networks Having a Morphology Spectrum

  • Kim, Yu-Seung;Min, Hyun-Sung;Kim, Sung-Chun
    • Macromolecular research
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    • v.10 no.2
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    • pp.60-66
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    • 2002
  • The morphology, dynamic mechanical behavior and fracture behavior of polyetherimide (PEI)/dicyanate semi-interpenetrating polymer networks (semi-IPNs) with a morphology spectrum were analyzed. To obtain the morphology spectrum, we disported PEI particles in the procured dicyanate resin containing 300 ppm of zinc stearate catalyst. The semi-IPNs exhibited a morphology spectrum, which consisted of nodular spinodal structure, dual-phase morphology, and sea-island type morphology, in the radial direction of each dispersed PEI particle due to the concentration gradient developed by restricted dissolution and diffusion of the PEI particles during the curing process of the dicyanate resin. Analysis of the dynamic mechanical data obtained by the semi-IPNs demonstrated that the transition of the PEI-rich phase was shifted toward higher temperature as well as becoming broader because of the gradient structure. The semi-IPNs with the morphology spectrum showed improved fracture energy of 0.3 kJ/$m^2$, which was 1.4 times that of the IPNS having sea-island type morphology. It was found that the partially introduced nodular structure played a crucial role in the enhancement of the fracture resistance of the semi-IPNs.

The Study about Morphology of Mouth according to Sasang Constitution and its Correlation with Digestion (사상체질별 입의 형태와 소화기능과의 상관성에 관한 연구)

  • Ban, Duk-Jin;Park, Seong-Sik
    • Journal of Sasang Constitutional Medicine
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    • v.21 no.1
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    • pp.127-138
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    • 2009
  • 1. Objectives To examine appearances is essential of diagnosing Sasang constitution. It has been studied in various way, we focus the correlation between morphology of mouth and digestion. 2. Methods We have collected 231 cases of participants who were diagnosed sasnag constitution and measured morphology of mouth and analyzed the correlation between morphology of mouth and digestion. 3. Results and conclusions In result of analyzing the relation between morphology of mouth and digestion, morphology of mouth have correlation with digestion. And also morphology of mouth have correlation with digestion according to sex and sasang constitution.

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Paradigm Forces in English Derivational Morphology

  • Kim, Jin-Hyung
    • Korean Journal of English Language and Linguistics
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    • v.1 no.2
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    • pp.243-272
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    • 2001
  • This paper focuses on the applicability of paradigm to derivational morphology and the pressure of paradigm enforced on derivational phonology and morphology. Through a close examination of well-attested data, we will demonstrate that apparent surface idiosyncrasies in phonology are the results of paradigm leveling, and that paradigmatic forces of analogy are productively operating in English word formation. On the basis of these observations, it can be argued that the notion of paradigm has at least some justification within derivational morphology as well, even if not to the same extent that it has with inflectional morphology and that the paradigm forces are independently needed in any adequate phonological and morphological theory. This can also be extended to provide evidence against the split morphology hypothesis that inflectional and derivational morphology belong to different grammatical modules.

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The effect of NPB morphology on OLEDs optoelectronic characteristics

  • Jiang, Yurong;Xue, Wei
    • 한국정보디스플레이학회:학술대회논문집
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    • pp.602-604
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    • 2004
  • NPB surface morphologies deposited on different temperature substrates were investigated using atomic force microscopy(AFM). It has been found that the NPB morphology turned from island morphology at high temperature(100$^{\circ}C$) to grain morphology at room temperature. To characterize the effect of NPB surface morphology, the devices with the structure of Glass/ITO/NPB/$Alq_3$/Al were fabricated using NPB films deposited at different substrate temperature and their performances were compared.

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Brain morphology according to age, sex, and handedness

  • Kang, Sa Jin;Kang, Kyeong A;Jang, Han;Lee, Jae Youn;Lee, Kang Il;Kwoen, Min Seok;Kim, Jung Soo;Park, Kang Min
    • Annals of Clinical Neurophysiology
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    • v.19 no.2
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    • pp.93-100
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    • 2017
  • In this article, we review the differences of the brain morphology according to age, sex, and handedness. Age is a well-known factor affecting brain morphology. With aging, progressive reduction of brain volume is driven. Sex also has great effects on brain morphology. Although there are some reports that the differences of brain morphology may originate from the differences of weight between the 2 sexes, studies have demonstrated that there are regional differences even after the correction for weight. Handedness has long been regarded as a behavioral marker of functional asymmetry. Although there have been debates about the effect of handedness on brain morphology, previous well-established studies suggest there are differences in some regions according to handedness. Even with the studies done so far, normal brain morphology is not fully understood. Therefore, studies specific for the each ethnic group and standardized methods are needed to establish a more reliable database of healthy subjects' brain morphology.

Removing Baseline Drift in ECG Signal using Morphology-pair Operation and median value (Morphology-pair 연산과 중간 값을 이용한 심전도 신호의 기저선 변동 잡음 제거)

  • Park, Kil-Houm;Kim, Jeong-Hong
    • Journal of the Korea Society of Computer and Information
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    • v.19 no.8
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    • pp.107-117
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    • 2014
  • This paper proposed the method of removing baseline drift by eliminating local maxima such as P, R, T-wave signal region and local minima Q, S-wave signal region. We applied morphology-pair operations improved from morphology operation to the ECG signal. To eliminate overshoot in the result of morphology-pair operation, we apply median value operation to the result of morphology-pair operation. We use MIT/BIH database to estimate the proposed algorithm. Experiment result show that proposed algorithm removing baseline drift effectively without orignal ECG signal distortion.

Particle Size, Morphology and Color Characteristics of C.I. Pigment Red 57:1 : 2. Effect of Salt Milling Process

  • Seo, Hee Sung;Lee, Hyun Kyung;Yoo, Eui Sang
    • Textile Coloration and Finishing
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    • v.27 no.4
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    • pp.245-260
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    • 2015
  • The effect of salt milling process on the crystal size, morphology, and color characteristics of C.I. Pigment Red 57:1 was studied. The primitive morphology and color properties of the pigment after synthesis were studied in the former series work. The size and morphology of primary particles and the second aggregation features should be considered because they are very important to determine pigment quality. We compared the primary morphology of pigment particles before drying with the secondary aggregated morphology of pigment particles after drying and salt milling process. Morphological properties were investigated by particle size analysis, X-ray diffraction, and scanning electron microscopy and color measurement was carried out. Significant reduction in particle size as well as enhanced crystallite size after salt milling process was observed. This result might give a difference in color of the pigment, turning into brighter and more blue-toned red color. It was revealed that synthesis condition affect the morphology and color of the pigment even after milling. Increase in HCl concentration in the synthesis process enhanced crystal size and quality forming bluer-red pigments but an increase in $CaCl_2$ concentration resulted in more amorphous crystals forming darker-red pigments after salt milling.

Observation of sperm-head vacuoles and sperm morphology under light microscope

  • Park, Yong-Seog;Park, Sol;Ko, Duck Sung;Park, Dong Wook;Seo, Ju Tae;Yang, Kwang Moon
    • Clinical and Experimental Reproductive Medicine
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    • v.41 no.3
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    • pp.132-136
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    • 2014
  • Objective: The presence of sperm-head vacuoles has been suspected to be deleterious to the outcomes of assisted reproductive technology (ART). It is difficult to accurately distinguish morphologically abnormal sperm with vacuoles under a light microscope. This study was performed to analyze the result of the observation of sperm-head vacuoles using Papanicolaou staining under a light microscope and whether the male partner's age affects these vacuoles. Methods: Sperm morphology with vacuoles was evaluated using Papanicolaou staining and observed under a light microscope ($400{\times)$) in 980 men. The normal morphology was divided into three categories (group A, <4% of normal morphology; group B, 4%-14% of normal morphology; and group C, >14% of normal morphology). The criteria for the sperm-head vacuoles were those given in the World Health Organization manual. For the analysis of the age factor, the participants were divided into the following groups: 26-30 years, 31-35 years, 36-40 years, 41-45 years, and 46-50 years. Results: The percentage of sperm-head vacuoles increased with normal sperm morphology (group A vs. groups B, C) (p<0.05). In the case of the age factor, a statistically significant difference was not observed across any of the age groups. Conclusion: A majority of the sperm-head vacuoles showed a statistically significant difference among normal morphology groups. Therefore, we should consider the probability of the percentage of sperm-head vacuoles not increasing with age but with abnormal sperm morphology. A further study is required to clarify the effect of the sperm-head vacuoles on ART outcomes.

A Study on Progressive Removing Radar Clutter by Wavelet and Recursive Mathematical Morphology (Wavelet과 반복적 수리형태학을 이용한 레이더 클러터의 점진적 제거에 관한 연구)

  • Jeong, Gi-Ryong
    • Journal of Navigation and Port Research
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    • v.26 no.2
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    • pp.209-213
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    • 2002
  • MRA(Multi-resolution analysis) algorithm by Wavelet and morphology with $3{\times}3$ SQ(square) SE(structure element) is efficient to remove ship's radar clutter progressively and enhances detecting performance. Smoothing efficiency of RMM (Recursive mathematical Morphology) is better than that of Morphology. So, to get a better result than that of old algorithms, this paper proposes a new MRA algorithm which uses Wavelet and Recursive mathematical Morphology with $3{\times}3$ RHR(rhombus) SE. Simulation result of the proposed algorithm shows that PSNR is 0.65~1.50db better than that of old method.