• Interdisciplinary Bio Central
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• 제3권1호
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• pp.4.1-4.7
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• 2011

Forty-seven wild accessions of Lotus japonicus Regal (Japanese trefoil) indigenous to Japan were investigated for nine morphological characters. Average temperature and annual precipitation were negatively correlated with stem color and seed weight. On the other hand, latitude was positively correlated with these traits. Consequently, accessions from sites at higher latitudes with low temperatures and precipitation tend to have dark red stems and heavy seeds. Cluster analysis based on nine morphological characters classified 47 wild accessions into six major groups. Cluster I included four accessions of tall and erect plants. These plants are phenotypically similar to commercial variety 'Empire'. Cluster II consisted of three accessions of creep plants with pale red stems. Cluster III contained 24 accessions that had average values for all morphological characters evaluated. Cluster IV included two accessions of erect plants with rounded leaflets and dark red stems. Cluster V included four accessions of small, creep plants with pale red stems. Cluster VI included seven accessions of small and erect plants, a phenotype that also applies to ?Gifu B-129?, which is used as experimental strain worldwide. These data were deposited into LegumeBase, an online database (http://www.legumebase.brc.miyazaki-u.ac.jp/) supported by the National BioResource Project (NBRP) in Japan.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2010년도 춘계학술대회 논문집
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• pp.1363-1364
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• 2010

• 한국수산과학회지
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• 제48권2호
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• pp.233-243
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• 2015

Controlled broadband acoustic scattering laboratory experiments were conducted using a linear chirp signal (95-220 kHz), and x-ray images of live and model fish with an artificial swim bladder were analyzed to investigate the changes in orientation and frequency dependence of target strength (TS) due to morphological differences in fish swim bladders. The broadband echoes from live and model fish were measured over an orientation angle range of ${\pm}45^{\circ}$ in the dorsal plane and in approximately $1^{\circ}$ increments. The location of nulls in the simulated echo response of the SINC [sinc function] model was overlaid on the TS map, showing the orientation and frequency dependence of fish TS, and they matched very well. It was possible to infer the equivalent fish scattering size (or swim bladder) using the null spacing in the experimentally obtained broadband TS map. Good agreement was observed for inferring the equivalent scattering size between the SINC model and the broadband echoes measured for the three fish species (black scraper Thamnaconus modestus; goldeye rockfish Sebastes thompsoni; and whitesaddled reef fish Chromis notatus). Some results of this inference are discussed.

• 반도체디스플레이기술학회지
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• 제21권4호
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• pp.92-98
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• 2022

This paper proposes a new method of the traffic signal detection and the recognition in an HSI color model. The proposed method firstly converts a ROI image in the RGB model to in the HSI model to segment the color of a traffic signal. Secondly, the segmented colors are dilated by the morphological processing to connect the traffic signal light and the signal light case and finally, it extracts the traffic signal light and the case by the aspect ratio using the connected component analysis. The extracted components show the detection and the recognition of the traffic signal lights. The proposed method is implemented using C language in Raspberry Pi 4 system with a camera module for a real-time image processing. The system was fixedly installed in a moving vehicle, and it recorded a video like a vehicle black box. Each frame of the recorded video was extracted, and then the proposed method was tested. The results show that the proposed method is successful for the detection and the recognition of traffic signals.

• 대한토목학회논문집
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• 제34권3호
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• pp.805-812
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• 2014

본 연구에서는 하상변동의 고려가 물리서식처 모의에 미치는 영향을 검토하였다. 이를 위해 수리 및 이동상 계산은 CCHE2D 모형을 이용하였으며 서식처 적합도 곡선을 사용하여 서식처 평가를 실시하였다. 적용구간은 달천 유역 괴산댐 하류 수전교에서 대수보까지 약 2.5km 구간이며, 2006년 7월 홍수기 시 실측된 유량 및 수위자료를 이용하여 이동상 모의를 수행하였다. 수치모형의 검증은 실측된 수위와의 비교를 통해 수행되었으며 하상변동의 검증은 실시 하지 않았다. 물리서식처 분석은 우점종인 성어기 피라미를 대상으로 실시하였다. 고정상과 이동상 조건에서 각각 갈수량, 저수량, 평수량, 풍수량의 유랑조건에 대한 복합서식처 적합도 지수 분포를 모의하고 가중가용면적을 산정하였다. 모의 결과, 이동상 조건에서 모의구간의 상류 및 만곡부에서 복합 서식처 적합도지수가 상승하는 결과를 확인하였다. 또한 가중가용면적은 이동상 고려 시 5.4~11.3%정도 증가하는 것을 확인하였다.

• Korea-Australia Rheology Journal
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• 제17권1호
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• pp.15-20
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• 2005

In this study, the relationship between morphology and viscosity of the main culture broth of Cephalosporium acremonium M25 was investigated in a 2.5 L bioreactor. The differentiation of C. acremonium M25 showed a complex pattern during the main culture. The morphological changes of C. acremonium M25 were related to the rheological properties of the culture broth and it was well agreed with the power law model. As a result of rheology study, it was found that rheological properties of the main culture broths of C. acremonium M25 in bioreactor were closely related to morphological changes. Also, fractal dimension fairly predicted morphological and rheological changes in the main culture broth.

• 복식
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• 제21권
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• pp.87-99
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• 1993

The fiber morphologies of the textiles from the burials of the Seip group of Ohio Hopewell (ca. 100 B.C. to A.D. 500)mounds were examined using light and scanning electron microscopy. A theoretical model was proposed which delineates the rate of morphological change in fibers through time and the cultural activities which occur during the life of a textile element. The Seip textiles were categorized according to their visual and structural characteristics. The microscopic examination of the Seip textiles yielded the evidence of animal hair fibers and bast fibers. The animal hair fibers of the seip textiles were identified as the hair of rabbit or hare. The bast fibers of the Seip textiles exhibited variation in morphological features such as the degree of bundle separation and the presence of transverse striations, fibrillations, or trans-verse cracks.

• 센서학회지
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• 제28권4호
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• pp.231-235
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• 2019

We investigated the facile and effective strategy for sensitive and selective $C_2H_5OH$ sensors based on the In-decorated NiO nanoigloos. The In-decorated NiO nanoigloos is fabricated by RF sputtering using 750 nm-diameter polystyrene beads using a soft-template. The morphological evolution based on the Van der Drift model was generated through a heterojunction between In metal and NiO, resulting in a pyramidal rough surface. Upon decorating the In on the NiO surface, high sensitivity and selectivity to $C_2H_5OH$ were observed, and gas sensing mechanism was demonstrated by a high surface-to-volume and double Schottky barrier. We are confident that the method presented in this study will have a significant impact on the fabrication of effective nanostructures and their application for the gas sensors.

• 정보과학회 논문지
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• 제43권4호
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• pp.430-436
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• 2016

형태소 분석시 나타나는 고유명사나 신조어 등의 미등록어에 대한 처리는 다양한 도메인의 문서 처리에 필수적이다. 이 논문에서는 3단계 확률 기반 형태소 분석에서 미등록어를 분리하고 태깅하기 위한 방법을 제시한다. 이 방법은 고유명사나 일반명사와 같은 개방어 뒤에 붙는 다양한 접미사를 분석하여 미등록 개방어를 추정할 수 있도록 했다. 이를 위해 형태소 품사 부착 말뭉치에서 자동으로 접미사 패턴을 학습하고, 확률 기반 형태소 분석에 맞도록 미등록 개방어의 분리 및 태깅 확률을 계산하는 방법을 제시하였다. 실험 결과, 제안한 방법은 새로운 미등록 용어가 많이 나오는 문서에서 미등록어 처리 성능을 크게 향상시켰다.

• 인지과학
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• 제4권2호
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• pp.145-180
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• 1994

본 논문은 단어를 구성하는 모든 가능한 형태소열 생성하는 효율적인 한국어 형태소분석 모델을 제시한다.본 논문의 형태소분석 모델은 결정적인(deterministic) 철자규칙의 적용을 보장하며,복합어나 중의성을 지니는 단어의 경우에도 불필요한 계산을 방지한다.이러한 효율성의 획득은 (1)철자규칙을 해석하는 새로운 방법. (2)입력단어에 적합한 철자규칙만을 적용하는 예측중심의 규칙적용방법.(3)중의성이 있는 단어의 경우 이미 분석된 형태부분의 반복계산을 방지하는 동적 프로그래밍 기법의 사용에 의한 새로운 분석기술에 의하여 이루어진다.본 논문에서는 제시된 형태소 분석 모델은 국민학교 국어교과서에서 무작위로 추출된 413,975개의 단어 를 대상으로 실험되었으며, 실험 결과는 본 모델이 효율적이면서도 견고한 형태소 분석을 보장하는것으로 나타났다.