• Title/Summary/Keyword: pattern comparison

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The examination of the pores of casting bodies depending on the position of wax pattern in the ring for precious alloys (Ring 내 납형의 위치에 따른 귀금속합금 주조체의 수축공 관찰)

  • Park, Min-Ju;Noh, Hak;Ko, Dae-Jin;Jung, Jong-Hyun
    • Journal of Technologic Dentistry
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    • v.30 no.1
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    • pp.9-15
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    • 2008
  • An investigation was carried out to examine the pores of casting bodies depending on the position of wax pattern in the ring for precious alloy by optical micrographs. From the result of optical micrographs, many pores were found in the Group C that wax pattern is placed in the center of the ring. However, any pores were scarcely found in the Group A, B, D and E that wax patterns are placed out of the center of thermal zone. In comparison with the pores of casting bodies of Group C, many pores were found at the cusp area rather than at the proximal surface. From these examination, it was concluded that wax pattern should be placed out of the center of thermal zone to prevent casting boies from occurring pores.

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A Comparate Study for the PD Pattern Analysis using Different Type of Sensors Applicable to the On-line Monitoring of GIS (GIS 감시진단용 다양한 센서를 적용한 PD 검출 및 패턴분석 결과 비교연구)

  • Koo Ja-Yoon;Chang Yong-Moo;Choi Jae-Ok;Yeon Man-seung;Lee Ji-Chul
    • The Transactions of the Korean Institute of Electrical Engineers C
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    • v.54 no.5
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    • pp.198-205
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    • 2005
  • Many precedent investigations hate been made for the reliable assessment of the insulation state of large power apparatus for which partial discharge detection is one of tile plausible way. In this work, experimental investigations have been carried out to make the comparison on the PD(partial discharge) pattern analysis related to the five different types of artificial defects such as SFMP (Single Free Moving Particle), MFMP (Multi Free Moving Particle), Void, CFP (Conductor-Fixed Protrusion), EP (Enclosure Protrusion). For each PD pattern, PD detection has been done by tee different types of PD sensors such as HFCT(High Frequency Current Transformer), AE(Acoustic Emission) and UHF(Ultra High Frequency). And, in addition, frequency spectrum by the UHF sensor has been also made for each defect respectively. As a result, it is observed that the possibility of obtaining PD pattern based on PRPD(Phase Resolved Partial Discharge) in connection with the defects tinder investigation is dependant on the type of the sensor while the spectrum analysis is always successful to be achieved for every defect. Therefore, it could be suggested that the nature of PD source can be identified more distinctively when the conventional PRPDA is combined with spectrum analysis.

An analysis of botanical patterns식 religious symbol in clothing - focusing on comparison of Korea and Byzantine - (동서양 복식에 나타난 식물문양의 종교적 상징성 연구 -한국과 비잔틴의 비교를 중심으로-)

  • 이윤정
    • Journal of the Korea Fashion and Costume Design Association
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    • v.5 no.3
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    • pp.37-48
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    • 2003
  • 'Pattern' is of very unique nature in each and every country around the world, and its aesthetic feeling of 'pattern' has been handed down according to its nationality and cultural development process. That is, 'pattern' is ornament to symbolize each country's aesthetic standard or choice through some shape, reflecting social consciousness or religion philosophy. Mostly based upon literature survey and case study, this survey paper analytically compares oriental botanical pattern with occidental botanical figure, which has been influenced by Buddhism-Confucianism and Christian religion respectively. The results show that some patterns are commonly used in both area, while meaning differently in some cases: lotus (life), pomegranate (wealth and prosperity in orient, resurrection in occident), grape (fecundity in orient, wealth in occident), dangcho (fecundity in orient, victory in occident). And the other patterns look uniquely used either just in orient or only in occident. For instance, oriental area had its own patterns such as peony (meaning wealth and honour), peach (longevity), ume flower (happiness), orchid (fecundity); while occidental area used lily (purity), olive (peace), palm (victory), and so on. Interestingly, the botanical patterns were used as main patterns in orient whereas as minor in occident.

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Hybrid Approach to Sentiment Analysis based on Syntactic Analysis and Machine Learning (구문분석과 기계학습 기반 하이브리드 텍스트 논조 자동분석)

  • Hong, Mun-Pyo;Shin, Mi-Young;Park, Shin-Hye;Lee, Hyung-Min
    • Language and Information
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    • v.14 no.2
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    • pp.159-181
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    • 2010
  • This paper presents a hybrid approach to the sentiment analysis of online texts. The sentiment of a text refers to the feelings that the author of a text has towards a certain topic. Many existing approaches employ either a pattern-based approach or a machine learning based approach. The former shows relatively high precision in classifying the sentiments, but suffers from the data sparseness problem, i.e. the lack of patterns. The latter approach shows relatively lower precision, but 100% recall. The approach presented in the current work adopts the merits of both approaches. It combines the pattern-based approach with the machine learning based approach, so that the relatively high precision and high recall can be maintained. Our experiment shows that the hybrid approach improves the F-measure score for more than 50% in comparison with the pattern-based approach and for around 1% comparing with the machine learning based approach. The numerical improvement from the machine learning based approach might not seem to be quite encouraging, but the fact that in the current approach not only the sentiment or the polarity information of sentences but also the additional information such as target of sentiments can be classified makes the current approach promising.

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Analysis of Pattern Shape and Types for Non-woven Protective Coverall on Domestic Market (시판 부직포 전신 보호복의 패턴형상 및 유형분석)

  • Moon, Jeehyun;Jeon, Eunkyung
    • Journal of the Korean Society of Clothing and Textiles
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    • v.40 no.2
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    • pp.273-286
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    • 2016
  • Protective coveralls are very uncomfortable to work in comparison to ordinary top and bottom separated clothing. A pattern maker has to consider the size of the human body and human motion range when designing protective coverall patterns. It is difficult to produce well-fitted coveralls because of the lack of readymade patterns despite the increased need for protective coveralls at various jobs. Patterns are decomposed by unsewing 18 products in the domestic market to provide the fundamental information on developing patterns for protective coveralls. The characteristics and differences of pattern types are compared after grouping patterns with information taken from the analysis of the shapes and measurements of patterns from the acquired patterns. The results of the analysis showed that on-market protective coveralls were less curved but much linear when compared to ordinary clothing patterns; however, the breasts and crotch circumferences were very loose and bulky, which is quite different from the other all-in one style working clothes. For the pattern shapes, patterns are classified into waistline-seamed and bustline-seamed types. The result of the hierarchical cluster analysis with 27 measurement variables were classified into four groups. Types by shape and measurements were related to each other; therefore, we expect the information of each type to be used in developing protective clothing patterns.

Comparison of Pattern and Cause of Activity Injury in Military Service (군부대에서 신체활동시 병사의 상해 유형과 원인 비교 분석)

  • Cho, Byung-Jun;Kim, Hak-Soo
    • The Korean Journal of Emergency Medical Services
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    • v.9 no.2
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    • pp.137-146
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    • 2005
  • This research focused on studying the phenomena of activity injuries occurred in military service, the object of which is soldiering soldiers in army. I made a inquiry paper including 6 items such as injury frequency, athletic event when you are injured, injury pattern, injury part in body and injury time according to military classes, and distributed it to elected 421 soldiers, the number of which is the total number of injured soldiers having time for physical activities in a year(last 2002 year). The results were as follows ; First, Injury frequency was according to private middle classes, private second classes, private last classes, private first classes. Second, Athletic event when you are injured was according to soccer, basketball, running and Martial Art(Taekwondo). 1) An abrasion was the most injury pattern when playing soccer. 2) A sprain was the most injury pattern when playing basketball. Third, Most causes of injuries dued to his / her carelessness, which is his / her excessive greed to win. Fourth, The most injury pattern was a skin abrasion. Fifth, The most injury part in body was a leg. Sixth, There was the most injury in summer. Wednesday on week, especially afternoon when you have time for physical to improve your battle-power.

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Movement Pattern Recognition of Medaka for an Insecticide: A Comparison of Decision Tree and Neural Network

  • Kim, Youn-Tae;Park, Dae-Hoon;Kim, Sung-Shin
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • v.7 no.1
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    • pp.58-65
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    • 2007
  • Behavioral sequences of the medaka (Oryzias latipes) were continuously investigated through an automatic image recognition system in response to medaka treated with the insecticide and medaka not treated with the insecticide, diazinon (0.1 mg/l) during a 1 hour period. The observation of behavior through the movement tracking program showed many patterns of the medaka. After much observation, behavioral patterns were divided into four basic patterns: active-smooth, active-shaking, inactive-smooth, and inactive-shaking. The "smooth" and "shaking" patterns were shown as normal movement behavior. However, the "shaking" pattern was more frequently observed than the "smooth" pattern in medaka specimens that were treated with insecticide. Each pattern was classified using classification methods after the feature choice. It provides a natural way to incorporate prior knowledge from human experts in fish behavior and contains the information in a logical expression tree. The main focus of this study was. to determine whether the decision tree could be useful for interpreting and classifying behavior patterns of the medaka.

A Comparison of the Pattern and the Investigation of Determinants in Rural Couples′ Time-Use (농촌지역 부부의 시간사용 실태 비교 및 관련요인 분석)

  • 김인숙;허경옥
    • Korean Journal of Rural Living Science
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    • v.9 no.1
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    • pp.67-78
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    • 1998
  • This study compared the pattern of couples' time-use in rural areas. Wives' and husbands' time spent in household work, leisure, and agricultural labor were compared. In addition, this study examined what factors determine the amount of time of couples spent in such activities. According to the results, in general, the pattern of couple's time-use in rural area was different. Regarding the pattern of time-use, three major results could be mentioned. First of all, husband in rural area spent most agricultural labour time in busy farming season. And then husband spent much time in leisure activities and wife spent in household work. Second, wife spent more time in inactive leisure and husband spent more time in active leisure. Third, husband in rural area spent less time in household work. In particular. they spent less time in female-typed work than male-typed work. To examine what factors determine the extent of time spent in such activities, three theories were employed and tested. According to the results, the models employed in this study were realistic in explaining the amount of time of couple in rural area, and more adjustable wife than husband. In conclusion, a combination of the multidimensional theoretical perspectives used in this study helpfully explains the variation in the amount of time-use of couple in rural area.

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Comparison of Fragmentation Performance of Two Different Blast Patterns (두 가지 발파 패턴의 파쇄 성과 비교)

  • Rai, Piyush;Yang, Hyung-Sik
    • Tunnel and Underground Space
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    • v.20 no.5
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    • pp.325-331
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    • 2010
  • In the present research paper large scale blasting was conducted on two different firing patterns, namely, straight V type and skewed V type pattern on the same sandstone overburden bench with similar explosives. The post-blast fragmentation assessments were made by use of digital imaging technique. The total cycle time of 10 $m^3$ rope shovels was also recorded in the field. The results reveal improvements in the fragmentation and excavator performance results for the blasts fired on skewed V type pattern. The paper discusses the skewed V firing pattern and the reasons for its superior performance vis-$\grave{a}$-vis the straight V type pattern.

The Discussion on Treatment Based on Pattern Identification in Guidelines for Traditional Chinese Medical Treatment of COVID-19 in China (COVID-19 중국 진료방안의 변증론치에 대한 고찰)

  • Sanghyun, Kim
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.36 no.5
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    • pp.163-168
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    • 2022
  • After the outbreak of COVID-19 in China, the national health commission of the people's republic of China distributed guidelines for the diagnosis and treatment of COVID-19. Based on that, each region of China made guidelines for traditional Chinese medical treatment of COVID-19 applicable to clinical field. Under the hypothesis that each region's guideline contains regional characteristics, a comparison was made on pattern identification among each region's guidelines and central guidelines. At the beginning of the analysis of the cases, opinions on pattern identification vary from region to region, and the diversity is mainly reflected in the early stage of the disease. When the guideline is organized to a certain level due to the accumulation of clinical cases, there is a strong tendency to enumerate various types of pattern identification. It means that as a specific infectious disease progresses, it can appear in various cases due to variables. In some guidelines, disease stages were analyzed by only a limited pathological mechanism, but no regional characteristics were found here. Rather, it may mean that unique characteristics for disease can be derived.