• Title/Summary/Keyword: Small object

Search Result 974, Processing Time 0.025 seconds

Operational Ship Monitoring Based on Integrated Analysis of KOMPSAT-5 SAR and AIS Data (Kompsat-5 SAR와 AIS 자료 통합분석 기반 운영레벨 선박탐지 모니터링)

  • Kim, Sang-wan;Kim, Dong-Han;Lee, Yoon-Kyung
    • Korean Journal of Remote Sensing
    • /
    • v.34 no.2_2
    • /
    • pp.327-338
    • /
    • 2018
  • The possibility of ship detection monitoring at operational level using KOMPSAT-5 Synthetic Aperture Radar (SAR) and Automatic Identification System (AIS) data is investigated. For the analysis, the KOMPSAT-5 SLC images, which are collected from the west coast of Shinjin port and the northern coast of Jeju port are used along with portable AIS data from near the coast. The ship detection algorithm based on HVAS (Human Visual Attention System) was applied, which has significant advantages in terms of detection speed and accuracy compared to the commonly used CFAR (Constant False Alarm Rate). As a result of the integrated analysis, the ship detection from KOMPSAT-5 and AIS were generally consistent except for small vessels. Some ships detected in KOMPSAT-5 but not in AIS are due to the data absence from AIS, while it is clearly visible in KOMPSAT-5. Meanwhile, SAR imagery also has some false alarms due to ship wakes, ghost effect, and DEM error (or satellite orbit error) during object masking in land. Improving the developed ship detection algorithm and collecting reliable AIS data will contribute for building wide integrated surveillance system of marine territory at operational level.

'Study on Oui-Ga-Sil( 胃家實 )' (위가실(胃家實)에 관(關)한 연구(硏究))

  • Han, Gyu-Eon;Ryu, Bong-Ha;Park, Dong-Won;Ryu, Gi-Won;Jang, In-Gyu
    • The Journal of Internal Korean Medicine
    • /
    • v.10 no.1
    • /
    • pp.65-80
    • /
    • 1989
  • About Oui-Ga-Sil(胃家實) in order to considerate the contents recorded in Nai-Gyung Sang-Han-Lon and latter literature, definition, etiopathology, syndrome, differential diagnosis, therapy, Prognosis and prevention were classified. And the results were as follows: 1. Oui-Ga(胃家)was a term which indicated the whole digestive system such as stomach, small intestine, large intestine, rectum and anus. Sil(實)could be defined as the peculiar concept pertaining to the acute and last stage which was invaded to inside bowels because of abundance with evil influence. 2. Eliology of Oui-Ga-Sil was abunt gastric fever originally, injured mucus because of mistreatment, the invasion to inside of outside evil influence through meridian. Pathology was the opening and shutting appearance of gastric abundance with intestinal emptiness, and intestinal abundance with gastric emptiness, Oui-Ga-Sil could be occurred because of gastric abundant dryness and splenic humidifying capacity decrease. 3. Symptom of Oui-Ga-Sil was classified as for the sunlight outside syndrome and the inside abundant syndrome. The sunlight outside syndrome was body fever, sweating, no chilling, on the contrary hatred of fever. The chief complaint of inside abundant syndrome was daily fever, talking in delirium, hand and foot sweating, abdominal distention, difficult defection and those could be pertained to sunlight bowel syndrome. 4. Diagnostic views of Oui-Ga-Sil were that pulse was descending abundant large strong and smooth quick, a coated tongue was yellow, deep yellow, old yellow, thick, scorching dry rough or gray black. On abdominal diagnosis, pressing by hand, patient was conscious of pain, excessive pain, rejection against press, impossible press or intermittent abdominal pain and bowel cutting pain without press. 5. Differential diagnosis was that the sunlight of Nai-Gyung-Fever-Theory was outside desease making meridian the prime object, Baik-Ho-Tang syndrome was making figureless abundant fever the pivotal point. And important differential standard of splenic shrink syndrome was that a daily fever, an irritation with fever were not occurred. 6. Theory of Oui-Ga-Sil was that Seng-Gi-Tang classes had been used in attacking downward or making balance, and moxibustion on Jung-Wan, honey boiling induction theory had been also used. Attacking downward therapy was invigorating method to preserve mucus, and if mucus had been exausted with complicating emptiness prognosis had been appeared badly. 7. Preventing from Oui-Ga-Sil diet by rule, fitness to cold and warmth may be needed to prevent outside evil influence attack and inside evil influence occurrence. Prudence with being very busy, fatigue, wine and woman may be also needed not to be an injury to splanic and gastric spirit.

  • PDF

The Type of Dwelling Sites of Ancient People and Excavation-Recommended Spot in the Viewpoint of Geomorphology - 'Ohnju Region Urban Development Business Site' as an Example - (지형학적 관점에서 본 고대인의 생활터전 유형 및 시굴 추천지점 -충남 아산 '온주지구 도시개발 사업부지'를 사례로-)

  • Park, Ji-Hoon
    • The Korean Journal of Quaternary Research
    • /
    • v.25 no.2
    • /
    • pp.25-37
    • /
    • 2011
  • The purpose of this study is to assume the particular area of hills where it is highly possible for historical site to be buried in the viewpoint of geomorphology and based on this to suggest excavation-recommended area. Namely, this writer is to understand the dwelling site type of ancient people who had resided there at that time for the object of 'Ohnju region urban development business site' (referred as investigation area hereinafter) and considering the characteristics of micro-landform of hills which are distributed in investigation area and is to recommend the area where it is highly possible for historical site to be buried. The result of analysis is like the following. (1) Dwelling site types of ancient people who might have resided in the whole area of investigation region are discovered to be largely 'low hills+wetland' of Type-I and 'alluvial fan(or river terrace+wetland' of Type-II. (2) In investigation area if the area which has high possibility of distribution of historical site namely, excavation-recommended area is looked as based on micro-landform unit of hills, they are Crest slope and Crest flat. Individual area ratios which Crest slope and Crest flat occupies in investigation area are 12.9% and 10.2% respectively and the rankings are 3 and 6 each. And excavation-recommended areas in valley plain(or bottomland) of investigation area are in the vicinity of 'distal end' or 'buried distal end'of small scale alluvial fan.

  • PDF

A Study of Somatotype Characteristics of Infants and Sizes Specifications of Apparel Products for Infants I (유아(乳兒)의 체형특징(體形特徵)및 의류제품(衣類製品) 치수규격(規格)에 관(關)한 조사(調査) 연구(硏究) I)

  • Kim, Jin;Sohn, Hee-Soon
    • Journal of Fashion Business
    • /
    • v.5 no.3
    • /
    • pp.85-93
    • /
    • 2001
  • This study was aimed at reviewing the preceding studies regarding infants' physical characteristics and comparatively examining their apparel specifications among countries, and thereupon, surveying the sizes and specifications of each special infant apparel brand in korea, and thereby, providing for the basic data useful to consumers when they choose infants' apparel sizes and specifications, and at the same time to brand makers for effective exchange of information. Thus, domestic special infant's apparel brands were surveyed for their own sizes and specifications, and thereby, the basic data useful to consumers when they choose their infants' apparel sizes and specifications as well as to brand makers when they exchange information among themselves were produced. The results of this study can summarized as follows: As a result of surveying the general trend of the infant apparel brands in korea, it was found that 5 brands had been established before 1990's, and that the remaining 7 ones had emerged during 1990's. When viewed in terms of brands' originality, it was disclosed that 10 brands were korean originals, while 2 brands were foreign ones licensed. On the other hand, as a consequence of surveying the target age groups of each brand, it was found that the targe age groups differed much ranging from 0 to 72 months or more narrowly from 12 to 24 months, which means that the infant age has yet to be defined for all the brands. In the case of the domestic infant-clothing product respect of inner wear, 8 clothing companies are producing the the outside clothing. In the outside clothing, from 6 months to 36 months' infant is the object, and 6m, 12m, 18m, 24m, 30m, 36m appeared with the fact that it produces in 6 sizes. In the case of the f and the g company which has the difference of size control is big, the f company is producing infant clothing for the age 0 to 72 months in 6 size which the difference of the measurement between the size is a lot to be appear, on the other hand, the g company is producing infant clothing for the age 0 to 6 months in 6 size which the difference of the measurement between the size is small to be appear.

  • PDF

A Method for Reconstructing Original Images for Captions Areas in Videos Using Block Matching Algorithm (블록 정합을 이용한 비디오 자막 영역의 원 영상 복원 방법)

  • 전병태;이재연;배영래
    • Journal of Broadcast Engineering
    • /
    • v.5 no.1
    • /
    • pp.113-122
    • /
    • 2000
  • It is sometimes necessary to remove the captions and recover original images from video images already broadcast, When the number of images requiring such recovery is small, manual processing is possible, but as the number grows it would be very difficult to do it manually. Therefore, a method for recovering original image for the caption areas in needed. Traditional research on image restoration has focused on restoring blurred images to sharp images using frequency filtering or video coding for transferring video images. This paper proposes a method for automatically recovering original image using BMA(Block Matching Algorithm). We extract information on caption regions and scene change that is used as a prior-knowledge for recovering original image. From the result of caption information detection, we know the start and end frames of captions in video and the character areas in the caption regions. The direction for the recovery is decided using information on the scene change and caption region(the start and end frame for captions). According to the direction, we recover the original image by performing block matching for character components in extracted caption region. Experimental results show that the case of stationary images with little camera or object motion is well recovered. We see that the case of images with motion in complex background is also recovered.

  • PDF

Study of Operation Condition of Biofilter Using Fibril-form Matrix for Odor Gas Removal (악취가스 제거를 위안 섬유상 담체를 적용한 바이오필터 운전조건에 관한 연구)

  • Jeong Gwi-Taek;Lee Gwang-Yeon;Byun Ki-Young;Lee Kyoung-Min;Sunwoo Chang-Shin;Lee Woo-Tae;Park Chan-Young;Kim Do-Hyeong;Cha Jin-Myoung;Jang Young-Seon;Park Don-Hee
    • KSBB Journal
    • /
    • v.20 no.5 s.94
    • /
    • pp.341-344
    • /
    • 2005
  • This research was performed for developing of biological treatment process of odor gas such as MEK, $H_2S$, and toluene, which was generated from the food waste recycling process. To establish the operational conditions of odor gas removal by small-scale biofiltration equipment, it was continuously operated by using toluene as a treating odor object. When the odor treating microorganisms were adhered to fibril form biofilter, high removal efficiency over $93\%$ was obtained by biofilm formation. At 400 ppm of inlet odor gas concentration and 10 sec of retention time, the removal efficiency was $76\%$ and $93\%$ in 1 st stage reactor and End stage reactor, respectively. However, the removal efficiency remained over $97\%$ at the operational conditions above 15 sec of retention time.

A Comparative Study of Korea and Japan Relating to the Welfare Business Operation of Pension Accumulation (연금적립금의 복지사업 운용에 관한 한.일 비교연구)

  • Chung, Ki-Ryong
    • Korean Journal of Social Welfare
    • /
    • v.35
    • /
    • pp.345-374
    • /
    • 1998
  • The purpose of this study is to contribute the improvement of national welfare by presenting of pension welfare business of Korea and Japan. The reason why I take the management of Japan's pension accumulation as the object of comparative study is that the history of pension system of Japan is relatively longer than that of Korea. First of all, National Pension Fund comes into use for public sector, financial sector, and welfare sector, The scale of pension management for welfare sector is 50 small. Therefore, the study for welfare business investment reflecting the intentions of pension entries and pensioners is needs of times. This study defines the concept of welfare investment business and prospects welfare investment business of the future on the basis of Japanese experiences, and then suggests the direction of efficient propulsion of welfare investment business to the reasonable decision-makers. Especially this study redefine the concept of welfare investment business on the basis of pension entry's social benefits which are composed of pension entry's gains and pensioner's gain. Of course, welfare investment business has to be presupposed the stability of pension system and the continuous contribution to national economy. Thus, in order to efficiently perform welfare business, the policy-making for national welfare improvement has to be established after the good of business is set up like the results of this study.

  • PDF

Studies on Target Market of GAP Certified Raw-Ginseng (GAP 인증 수삼의 표적시장 연구)

  • Kim, Gwan-Hou;Lee, Ka-Soon;Yi, Doo-Hee;Hong, Seung-Jee
    • Food Science and Preservation
    • /
    • v.18 no.5
    • /
    • pp.684-691
    • /
    • 2011
  • This study was carried out to suggest producers' marketing direction for GAP certified rawginseng using STP(segmentation, targeting and positioning). In order to fulfill this object, conjoint analysis and cluster analysis were used. The main results are as follows. Based on the results of part worth for attributes such as safety, size, and price, GAP certified raw-ginseng, large size, and low price were preferred to conventional ginseng, small size, and high price respectively. In the relative importance for each attributes, safety was 47.2%, size was 30.0%, and price was 17.8%. As a result of market segmentation, 3 consumer groups(large size preferred, safety preferred, lower price preferred) were classified. Among those groups, the safety preferred group was selected as a target market for GAP certified raw-ginseng and its market size was estimated approximately 2,968 tons which is 26.8% of total raw ginseng market.

A Study on the Performance of the Hybrid Ventilation System for Apartment Houses (공동주택의 하이브리드 환기시스템 성능평가 연구)

  • Chun, Chu-Young;Kim, Gil-Tae;Kim, Sang-Hee
    • Land and Housing Review
    • /
    • v.3 no.1
    • /
    • pp.89-96
    • /
    • 2012
  • The purpose of this study was to evaluate the applicability of hybrid ventilation system in apartment housings and present a design method to improve the performance of hybrid ventilation system using the CFD simulation. As the object of CFD simulation, a small apartment houses with area of $51m^2$ and $81m^2$ were selected and evaluated. The test hybrid ventilation system are window frame natural air supply & duct exhaust hybrid system(Hybrid 1) and window frame natural air supply & bathroom and livingroom exhaust hybrid ventilation system(Hybrid 2). To evaluate the ventilation efficiency, we used the locations of diffuser installed for each system as the variables through the CFD simulation. In the case of Hybrid 1, the ventilation efficiency of the exhaust duct diffuser located on the inside room was higher rather than the exhaust duct diffuser located on the entrance. In the case of Hybrid 2, the most efficient system was the system that the diffuser connecting the bathroom static pressure fan is installed on the center of the living room. The ventilation efficiency of the Hybrid 2 in the case of $51m^2$ type was more than 20% of the Hybrid 1. But, The ventilation efficiency of the Hybrid 2 in the case of $84m^2$ type was more than 14% of the Hybrid 1. Therefore, to apply the Hybrid ventilation, a study that considers various variable should be conducted.

The Management of Fish Culture Industry and the Role of Fisheries Cooperatives in Japan;- Focused on Yellowtail Cultural industry - (일본에 있어서 어류양식업의 경영과 어협의 역할;(방어양식경영을 중심으로))

  • 최정윤
    • The Journal of Fisheries Business Administration
    • /
    • v.25 no.2
    • /
    • pp.1-46
    • /
    • 1994
  • The Purpose of this research is to analyze and discuss the development of yellowtail aquaculture industry in Japan and its management structure. The research includes the following : (a) It confirms the industrial conditions of yellowtail aqaculture which has a national technical and mass production system that has been developed at great speed. (b) It analyzes yellowtail aqaculture development from a family - oriented management to a large scale production. (c) It examines how the fisheries cooperatives harmonized their role with the object of individual aqaculture management and aqaculture fishing ground management. The reasons for this study focusing on the yellowtail aqaculture industry of Japan are : (a) The yellowtail aqaculture is regared as a typical field in aqaculture because it reflects the general aqaculture history, quantity of fisheries aqaculture product, the number of fishermen involved in this industry, technology , and the live and fish market formation in Japan. (b) The aqaculture has the most powerful entrepreneurial in financial and management style. The aqaculture industry also has a most individual management style which includes planned production and shipping strategy. This research has attempted to study the industrial processes of fisheries aqaculture industry and its management development, and focused on the yellowtail aqaculture industry of Japan. This work also includes data about the aqaculture management of fisheries cooperatives and case by case analysis of aqaculture production. The following results were obtained from this study : First, even though ocean, weather conditions, and widespread propagation of places suitable for aqaculture in Japan were crucial factors in aqaculture development, it must be pointed out that fisheries policy in Japan changed from "catching" in the 1960s to "cultivating". Second, the widespread course of fisheries cultivating technology in Japan has had two characteristics. One is that early aqaculture technology spread to the southern part of Japan and the other is that the metal nets were widely used in the northern part in the 1970s. Japan's yellowtail aqaculture industry's overproduction was due to metal nets. However, the use of mwtal nets also contributed to the improvement of aqaculture and the strategic aspects of aqaculture management. In addition, it should be stressed that Kagoshima prefecture as the pioneer of metal nets contributed to fisheries aqaculture development in japan. Third, as aqaculture technology developed, entrepreneurial qualities of aqaculture management also developed this field into a large scale business. Even though it is not clear, large scale management of yellowtail aqaculture shows evidence of superiority over small andmedium - size management of yellowtail aqaculture. Fourth, yellowtail aqaculture management in Japan hascontributed to the production system and aqaculture strategy to meet consumers' needs and market demands from weather - oriented trational fisheries industry, which overcame their overproduction structure. Fifth, Japanese fisheries cooperative played very important roles in the prevention of fishing grounds production from destruction and in promoting suitable aqaculture facilities so that aqaculture could grow continually.ld grow continually.

  • PDF