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Backward Explicit Congestion Control in Image Transmission on the Internet

  • Kim, Jeong-Ha;Kim, Hyoung-Bae;Lee, Hak-No;Nam, Boo-Hee
    • 제어로봇시스템학회:학술대회논문집
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    • 2003.10a
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    • pp.2106-2111
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    • 2003
  • In this paper we discuss an algorithm for a real time transmission of moving color images on the TCP/IP network using wavelet transform and neural network. The image frames received from the camera are two-level wavelet-trans formed in the server, and are transmitted to the client on the network. Then, the client performs the inverse wavelet-transform using only the received pieces of each image frame within the prescribed time limit to display the moving images. When the TCP/IP network is busy, only a fraction of each image frame will be delivered. When the line is free, the whole frame of each image will be transferred to the client. The receiver warns the sender of the condition of traffic congestion in the network by sending a special short frame for this specific purpose. The sender can respond to this information of warning by simply reducing the data rate which is adjusted by a back-propagation neural network. In this way we can send a stream of moving images adaptively adjusting to the network traffic condition.

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Correction of an unusual abnormal buccal frenum by Total Palatal Mucosal Free Graft : A Case Report (Total Palatal Mucosal Free Graft를 이용한 비정상 협소대 치험 1예)

  • Park, Hyung-Sik;Kim, Sun-Yong;Lee, Sang-Hye
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.12 no.3
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    • pp.42-48
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    • 1990
  • This is a case report on an unusual - heavy buccal frenum in young lady which was treated by frenectomy, vestibuloplasty and total-palatal mucosal free graft. The authors noticed that this abnormal condition lead several chronic complications in young patient as like as premature loss of upper molar teeth, early and rapid loss of alveolar bone around insertion of frenum, over - extended eruption of lower molar teeth and abnormal mandibular movements, etc. After frenectomy and surgical extension of buccal vestiblue on both upper and lower posterior regions, we obtained a full - sized palatal mucosal graft and moved it on upper and lower extension area seperately as two pieces of free grafts to offer inherent function of denture - bearing mucogingiva and same color - matching with oral mucosa and to prevent post - operative relapse of vestibular height. We discussed here about unusual abnormality and their complications of unusual buccal frenum and its treatment.

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User's evaluation on the ecological trail in Gunsan reservoir area through importance-performance analysis (문화생태탐방로 조성에 대한 중요도 성취도 분석 - '구불길' 군산저수지 구간을 중심으로 -)

  • Kim, Sang-Wook
    • Korean Journal of Agricultural Science
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    • v.39 no.3
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    • pp.319-325
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    • 2012
  • This study investigated the user's attitude to the nature trail called Gubulgil in Gunsan reservoir area and evaluated the quality of user's satisfaction of the trails and their facilities by importance-performance analysis (IPA). User's evaluation was achieved through questionnaire survey and total 283 pieces of subjects were used for the analysis. The results are as follows. Firstly, importance value of circularity of trails was very high, and it has great implication to ordinary trails which connect ecological, historical and cultural spots routinely and linearly. Secondly, through the IPA, relatively dissatisfied attributes were parking lots, direction boards, storytelling, convenient facilities and encountering of wildlife. Expansion of parking lots can cause the environmental disruption, so running a shuttle service from Gunsan downtown to the reservoir at weekends can be more reasonable. In case of ecological and historical information delivery, softwares like storytelling contents with sense of realism as well as hardwares of informative signboards are very important in nature trails. Encountering wildlife in trails is fascinating experience but it means visitors may disturb wildlife habitats. So route design should be done very carefully not to intrude their territories.

Food preferences of Men Working at Industry in Ulsan area (울산지역 산업체에 근무하는 남성 근로자의 기호도 조사)

  • Lee, Jae-Eun;Kim, Hye-Gyeong
    • Journal of the Korean Dietetic Association
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    • v.2 no.2
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    • pp.141-157
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    • 1996
  • This study was carried out to obtain the information concerning food preferences of 588 men working at industry in Ulsan area. The subjects of this study were composed of 245 clerical workers and 343 physical workers. The results of this study can be summarized as follows: 1. Average age of this subjects was 36.1 years(ranging from 21 to 57), in the educational background, most of subjects were high school graduates. The mean height and weight were l71.6cm and 67.5kg. 2. In the preference of food 1) The preference for staple foods, well-milled cooked rice was preferred the most by the subjects. Kalkooksoo(hot noodle), cooked rice covered with raw fish pieces, bread with red bean were preferred the most by the workers. 2) The acceptance for side-dishes were high in sirak(woogyogi) soup, bach tang, soybean paste soup, broiled fish, wild plant namul, small radish kimchi and crab steaming products by clerial and physical workers all together. 3) The preferences for fruits and beverages were high in water-melon, pear, fruit juice and Korean traditional beverage.

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A study of creative humor represented in Moschino's works (모스키노의 패션 세계에 반영된 창조적 유머)

  • Kim, Sun Young
    • The Research Journal of the Costume Culture
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    • v.23 no.4
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    • pp.628-643
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    • 2015
  • This study is to assist in developing creative designs based on the humor available in the fashion world of Moschino. For the research method, this writing examined literature on humor and Moschino's fashion world and analyzed Moschino's fashion collection, show window, Maison Moschino, and collaborative products to conduct an empirical analysis of humor shown to the fashion media. The research results are as follows. The humor in Moschino's fashion appeared in the form of surrealistic humor with the depaysement technique, deconstructive wit in clothing, such as distortion, change, or exaggeration, and textual humor, including brand symbols, logos, and graffiti. Collection pieces indicated the brand's confirmative identity based on humor with the surrealistic depaysement technique and deconstructive wit through irregular phenomena, such as change, distortion, exaggeration, and illusion in clothing form. Additionally, such attributes added to Moschino's wit and humor in decorative costume components as graphic images, graffiti, and brand symbols, including smile, love, and reversal. The show window display delivered surprises and smiles through the production of surrealistic space borrowed from various objects. In particular, performance with surrealistic images helped to show the characteristics of parodic humor. Maison Moschino was a surrealistic space for the concept of the fairy tale and for practical experience, thus working as a communication channel for humor and emotion. Collaborative products also clearly reflected the identity of the designer's own humor, which showed scarcity value as well as differentiation.

Style changes of women's heel height in Vogue 1950~2014 (여성 구두 굽 높이의 변화 연구)

  • Ahn, In-sook
    • The Research Journal of the Costume Culture
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    • v.23 no.4
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    • pp.604-615
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    • 2015
  • The objectives of this study were to investigate whether heel height changes in the U.S. market occur in a cyclical pattern and heel heights show greater within-year variability over time. Heel height data from U.S. Vogue's spring and fall editions were analyzed over the time period 1950~2014. A total of 1581 pieces of data were measured in millimeter units using Adobe Illustrator and standardized by dividing the height of the heel by the shoe length through the curved sole line. To analyze the cycle pattern of heel heights, the yearly averages were standardized by using three-year moving average technique to average out the irregular components of time series data and give a better indication of the long-term fluctuation of heel height. To identify the degree of within-year variability of heel height, the standard deviation of the average measurements for a year was calculated, and then decade averages were drawn from the yearly averaged standard deviation. One-way ANOVA was conducted to compare the within-year variability of data in heel height over the time period studied by decade. The results showed: First, there was a trend toward higher heels from the early 1950s to 2011. Second, four cyclical movements of heel height were observed from 1950 to 2007, and heel heights gradually decreased after 2008. Third, the within-year variability significantly increased over time, especially after the 1980s.

First Record of Ghost Pipefish, Solenostomus cyanopterus (Solenostomidae: Gasterosteiformes) from Korea (한국산 큰가시고기목, Solenostomidae과 어류 1 미기록종, Solenostomus cyanopterus)

  • Yim, Hu-Soon;Park, Jeong-Ho;Han, Kyeong-Ho
    • Korean Journal of Ichthyology
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    • v.19 no.4
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    • pp.360-364
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    • 2007
  • A single female specimen (73.6 mm SL) of ghost pipefish, Solenostomus cyanopterus Bleeker, belonging to the family Solenostomidae (new Korean name: Yu-ryeong-sil-go-gi-gwa), was observed and collected in the water off Yeongdeck, East Sea of Korea. Unlike to syngnathids, solenostomids are characterized by having the brood pouch formed by pelvic fins in female and dorsal fin spines present. This species is characterized by having the deep snout, and short, deep caudal peduncle, but no cirri and striped markings. In the water, the species swims slowly head downward in pairs and looks like a drifting pieces of algae or fallen leaf. We describe this species as new to Korean fish fauna and propose its new Korean name, "Yu-ryeong-sil-go-gi".

Fabrication of axially aligned $TiO_2/PVP$ nanofibers ($TiO_2/PVP$ 나노섬유의 제조)

  • Lee, Se-Jong
    • Journal of the Korean Crystal Growth and Crystal Technology
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    • v.17 no.1
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    • pp.30-34
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    • 2007
  • [ $TiO_2/PVP$ ] nanofibers were electrospun by varying the collector grounding design to improve the axial alignment of fibers. The collectors are composed of two pieces of conductive substrates separated by a gap f3r the uniaxial alignment of fibers (X design). The collectors consisting of two sets of substrates placed by $90^{\circ}$ (XY design) equipped with a timer are also prepared for biaxial alignment of fibers. Both collectors show that the charged nanofibers are stretched to span across the gap between the electrodes. Experimental results reveal that the latter collector is more effective on the directionality of electrospun $TiO_2/PVP$ nanofibers due to the dissipation of accumulated electric charge between the collectors.

A CASE REPORT OF THE HUGE COMPLEX ODONTOMA TREATED WITH THE SAGITTAL SPLITTING OF BUCCAL BONE PLATE AND ILIAC BONE GRAFT IN LEFT MANDIBLE ANGLE (하악 협측골 시상분절술 및 장골 이식술을 이용한 거대치아종의 치험례)

  • Kim, Ho-Seok;Song, Jae-Chul;Kim, Chin-Soo
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.15 no.4
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    • pp.269-274
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    • 1993
  • This is the case report of huge complex odontoma treated with sagittal splitting of buccal bone plate and iliac bone graft in left mandible angle. The 22 years old patient was admitted to the department of Oral and Maxillofacial Surgery of Kyungpook National University Hospital with the chief complaint of swelling on the left mandible angle area. We used extra oral Risdon incision and splitted the buccal cortical bone after making the horizontal bone cut buccally. The tumor mass was removed with cutting into the pieces with surgical bur to prevent mandibular fracture. The dead space was grafted with autogenous iliac bone graft and the splitted buccal cortical bone was fixed with two L-type miniplate. After 12months follow up check, we noticed good process of bone healing and satisfactory aesthetic result. In this case, my operative approach provided the excellent surgical access to the hard tissue mass and minimized post operative complication comparing with the conventional surgical approaches.

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Taxonomic identity of Dioscorea coreana (Prain & Burkill) R. Kunth

  • JEONG, Dae-Hui;KIM, Jae-Young;JO, Hyeong-Jun;PARK, Hong-Woo;LEE, Kang-Hyup;JI, Seong-Jin;CHUNG, Gyu-Young
    • Korean Journal of Plant Taxonomy
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    • v.50 no.2
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    • pp.232-238
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    • 2020
  • The identity of Dioscorea coreana (Prain & Burkill) R. Kunth is recognized during the re-identification process of Korean Dioscorea specimens. Given the relatively few pieces of information, including few descriptions and research papers, this species has been misidentified as D. tokoro, which has a similar leaf shape, but D. coreana is distinguished from D. tokoro by the absence of a pedicel in the male flower, the green color of the tepal, and the shapes of the fruit and seed. Thus, detailed descriptions, illustrations, and photographs of D. coreana and a key to the Korean Dioscorea, including this species, are presented.