• Journal of the Korean Society of Radiology
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• v.81 no.5
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• pp.1109-1120
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• 2020

Pleural masses may be caused by various conditions, including benign and malignant neoplasms and non-neoplastic tumorlike conditions. Primary pleural neoplasms include solitary fibrous tumor, malignant mesothelioma, and primary pleural non-Hodgkin's lymphoma. Metastatic disease is the most common neoplasm of the pleura and may uncommonly occur in patients with hematologic malignancy, including lymphoma, leukemia, and multiple myeloma. Pleural effusion is usually associated with pleural malignancy. Rarely, pleural malignancy may arise from chronic empyema, and the most common cell type is non-Hodgkin's lymphoma (pyothorax-associated lymphoma). Non-neoplastic pleural masses may be observed in several benign conditions, including tuberculosis, pleural plaques caused by asbestos exposure, and pleural loose body. Herein, we present a review of benign and malignant pleural neoplasms and tumorlike conditions with illustrations of their computed tomographic images.

• Journal of Wetlands Research
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• v.16 no.3
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• pp.337-346
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• 2014

This study was carried out to investigate the terrestrial diurnal insects in the Donggang river neighborhood. A total of 455 species belonging to 117 families of 16 orders were identified from 3,001 collected terrestrial insects around the Donggang river. Species richness showed as follows; Coleoptera (166 species, 34.48%), Hemiptera (11 species, 24.0%), Lepidoptera (68 species, 14.95%), Diptera (40 species, 8.79%), Hymenoptera (28 species, 6.15%), Orthoptera (18 species, 3.96%), Odonata (7 species, 1.54%), and others (3.74%). The Coleoptera consisted of the most number of individuals (33.2%), followed by 951 Hemiptera (31.7%), 662 Lepidoptera (20.7%), 155 Orthoptera (5.2%), 100 Diptera (3.3%), 87 Hymenoptera (2.9%), 30 Odonata (1.0%) and others (2.0%). Among them, 1 endangered species of Ministry of Environment, 1 Critically Endangered Korean species, 7 Vulnerable Korean species (VU), and also 2 Near Threatened Korean species were surveyed in the Donggang river neighborhood.

• FLOWER RESEARCH JOURNAL
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• v.16 no.1
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• pp.63-70
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• 2008

This experiment was conducted to acquire the basic data necessary for the artificial pond greening. Eighty four hydrophytes collected from 11 domestic small ponds and a farm were used in this experiment. The size of the artificial pond used was $6m{\times}3m{\times}1.5m(length{\times}width{\times}depth)$. Twelve months after planting, species were selected for their high ornamental values and tissue contents of N and P in each month. Tissue contents of N in Trapha nantan, Nymphoides indica, Nymphaea hybrid, and Murdannia keisak were high. Tissue contents of P in Monochoria vaginalis and Murdannia keisak were also high. The pH of artificial pond stabilized at a 6.8~7.6 range from May 2005 to March 2007. The EC was low in summer and high in autumn. From April to October, 5, 19, 23, 32, 31, 28, and 26 species, respectively, were selected for artificial pond greening. One year after planting, vegetation changed from 78 species (Potamogeton octqandrus, Salvinia natans, Potamogeton malaianus, etc.) to 38 species (Scirpus tarbernaemontani, Scirpus karuizawensis, Scirpus triqueter, etc.). Species diversity in the artificial pond was as follows, indicating it being a stabilized artificial pond; 38 species, 1,437 total number of plants, species richness index of 11.72, and maximum diversity index of 0.97.

• Journal of agriculture & life science
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• v.45 no.4
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• pp.37-45
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• 2011

The study was carried out to investigate distribution and diversity of beetles with pitfall traps and beatings 3 times at Baegyang temple area of Naejangsan National park from July to September in 2010. A total of 333individuals belonging to 32 species from 13 families were captured beetles at Baegyang temple area of Naejangsan National park. The rate of captured individuals was 17.4% and 13.3% in Synuchus cycloderus and Synuchus nitidus, respectively. The total of two species was 30.7%. The number of individuals by altitude was the highest at 200m, and was order of 500m>400m>700m. A total of 333 individuals belong to 32 species from 13 families were captured at Baegyang temple area of Naejangsan National park. The number of captured individuals by monthly was 95 on July, 178 on August and 60 on September, respectively. Dominance index was the highest to Attelabidae and was the lowest to Rutelidae. Dominance index by monthly was the highest on July and was the lowest on September. Diversity index showed the highest to Rutelidae in family and on August in monthly. Menhinich index was 1.75 which species abundance indicated by beetles at Baegyang temple area of Naejangsan National park.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2019.10a
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• pp.47-47
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• 2019

미얀마 Indo-Burma 지역은 13,500종의 식물종이 분포하고 있는 생물다양성 핫스팟이다. 북부 산악지역에서 남부의 망그로브 지역에 이르는 다양한 특성의 생태계로 구성되어있다. 그러나, 풍부한 생물 다양성은 인간에 의해 인위적인 간섭, 개발, 모노크림 재배와 같은 지속적인 삼림 벌채로 위협 받고 있다. Dprovidedc와 Krupnick (2018년)은 123과 472종의 미얀마 약용식물을 학명, 영명, 미얀마 식물명 그리고 미얀마 현지에서 쓰이고 있는 약용식물의 활용 및 보존 상태를 종합적으로 정리했다. 이 중 약 13%가 보존 상태에 대한 평가를 받았으며 IUCN의 멸종 위기 종 목록(IUCN2017)에 등재되었다. 비록, 전국에 다양한 식물 및 생물 다양성이 분포되어 있지만, 미얀마는 여전히 지속 가능한 관리와 사용을 위한 인적자원과 시설이 부족하다. 국립수목원(KNA)은 2013년부터 미얀마 천연자원환경보전부(MINISTRY OF NATURAL RESOURCES AND ENVIRONMENTAL CONSERVATION, MONREC)와 미얀마 산림과학원(Forest Research Institute, FRI)과 함께 미얀마 보호지역 및 Saggaing 지역 내 식물 다양성 보존을 위한 공동 현장조사, 연구 및 출판 등의 협력사업을 진행하고 있다. 또한 국립수목원(KNA)는 약용으로 가치가 있는 미얀마 식물 생체를 수집, 현지외 보전 중이며 이중 65과 326종의 식물 생체를 국립수목원(KNA)에 있는 열대식물자원연구센터에 보존과 교육 목적으로 전시 중이다. 이 기증은 미얀마에서 식물생체를 국외로 반출한 첫 번째 사례이며 국립수목원(KNA)은 2008년 독일에서 열대식물을 기증받은 사례 다음으로 두 번째로 외국 정부의 공식적인 대량 식물 도입 사례이다. 도입한 식물 중 Santalum album L. 과 Amorphopallus paeoniifolius (Dennst.) Nicolson. 은 IUCN Red List of Threated Spiences (IUCN2017)에 취약(Vulnerable, VU), 관심필요(Least Concern, LC)로 분류되어 있다. 국립수목원 (KNA)는 2019년 6월 17일 개최된 "2019 아태지역 산림주간 및 28차 아태지역 산림위원회"에 참가하여 미얀마 도입식물 전시회를 개최 하였고, 국내 최초로 Amorphopallus paeoniifolius (Dennst.) Nicolson.의 Leaf Cycle을 타임랩스 촬영하여 국립수목원 웹진(10월 호) 과 YouTube에 연구성과를 홍보하고 있다. 또한 국립수목원 열대식물자원연구센터는 2,700여종의 미얀마, 라오스 등 무한한 가치를 지닌 열대식물의 수집 보전으로 기초 응용 연구기반을 구축하여 국민들에게 열대식물의 중요성과 잠재적인 자원가치를 알리는 역할을 하고 있다.

• Korean Journal of Ecology and Environment
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• v.54 no.2
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• pp.96-101
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• 2021

In this study, we wanted to obtain the information of the ecological impact of alien species on native fish communities. The Ichthyofauna and fish community in Joongchosan Reservoir and Bukchosan Reservoir in Gunsan-si Korea were investigated over the period from March to October 2020. During the survey period, a total of 1,895 individuals representing eight species, five families, and four orders were caught in the Joongchosan Reservoir. In the Bukchosan Reservoir, a total of 171 individuals were caught, representing seven species, five families, and three orders. The dominant species and subdominant species of Joongchosan Reservoir were Pseudorasvora parva (661 individuals, RA: 34.7%), and Rhodeus ocellatus (660 individuals, RA: 34.7%). Conversely, Micropterus salmoides (77 individuals, RA: 45.0%), and Carassius auratus (60 individuals, RA: 35.1%), were the two most common species in the Bukchosan Reservoir. The community indices showed a dominance of 0.697, diversity of 1.483, evenness of 0.713, and species richness of 0.928 in the Joongchosan Reservoir. In comparison, the community indices in the Bukchosan Reservoir showed a dominance of 0.801, diversity of 1.304, evenness of 0.670, and species richness of 1.167. This study confirms that the number of native fishes and the associated community diversity have decreased due to the influence of Micropterus salmoides. This highlights the need for removal of alien species from reservoirs, while simultaneously preventing future introductions.

• Korean Journal of Plant Resources
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• v.35 no.5
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• pp.614-640
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• 2022

We investigated vascular plants of Bigeumdo and Dochodo Island in Shinan-gun, Jeollanam-do, Korea. By referring to 4 field surveys between June and September in 2021, a total of 490 taxa were identified and grouped into 113 families, 332 genera, 452 species, 6 subspecies, 27 varieties, and 3 forms. Among those observed, 232 taxa comprising 84 families, 189 genera, 220 species, 4 subspecies, 8 varieties, 4 forms were observed in Bigeumdo, 428 taxa comprising 107 families, 305 genera, 397 species, 5 subspecies, 23 varieties and 3 forms were observed in Dochodo. Among them, 7 taxa were Korean endemic plants. Protected species designated by the Ministry of Environment were 2 taxa of level II. In terms of threated plants according to the IUCN Red List Categoty, there were 5 taxa, consisting of 1 endangered species (EN), 3 vulnerable species (VU), 1 Near Threatened (NT). In total, there are 36 taxa of floristic regional indicator plants, including 1 level V taxa, 5 level IV taxa, 28 level III taxa. In Korea, 3 taxa were the northern distributional limit to Bigeumdo and Dochodo. Alien plants were 58 taxa.

• Journal of Life Science
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• v.20 no.6
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• pp.819-824
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• 2010

Genus Phyllostachys is a long-lived woody species primarily distributed throughout South East Asia. Many species of this genus has been regarded as medically and ecologically important in the world. We evaluated representative samples of the four taxa with RAPD to estimate genetic relationships within the genus Phyllostachys. The percentages of polymorphic loci were 8.9-33.3% at the species level. P. bambusoides was found to show lower genetic diversity (H=0.018) than other species. Total genetic diversity ($H_T$) was 0.315, genetic diversity within populations ($H_S$) was 0.043, the proportion of total genetic diversity partitioned among populations ($G_{ST}$) was 0.659 and the gene flow (Nm) was 0.0263. As some Korean populations were isolated and patchily distributed, they exhibited low levels of genetic diversity. The four taxa of the genus Phyllostachys analyzed were distinctly related to a monophyletic. P. nigra var. henonis. Stapf was found to be more closely related to P. pubescens than to P. nigra. P. bambusoides was quite distinct from the remaining species.

• Proceedings of the Korean Information Science Society Conference
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• 2007.06d
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• pp.338-343
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• 2007

WCDMA, WLAN, WiBro등과 같은 다양한 이기종 무선 네트워크들이 증가하면서 중첩된 네트워크가 발생하게 되어, 이기종망간의 vertical handover가 증가하게 되고 효율적인 Network 자원관리 필요성이 증가하였다. 이를 위해 특화된 CRRM을 활용한 중첩된 network들의 통합 자원 관리방안을 제안한다. 제안된 방안은 bandwidth와 사용자의 수를 고려하여 bandwidth를 adaptation 시키거나 forced vertical handover를 진행하여 자원을 관리하며, user는 별도의 handover discover 단계를 생략하고 vertical handover를 진행할 수 있으며, Multiple interface를 사용하여 MCoA를 등록하고 다양한 무선네트워크를 이용하여 데이터 전송이 가능해진다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 1998.11a
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• pp.325-328
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• 1998

통신처리시스템은 네트워크의 게이트웨이 설비로 56kbps 모뎀을 사용하는 PC통신 가입자를 위해 전화망과 패킷망의 연동뿐만 아니라 인터넷과도 접속 가능한 시스템으로 다양한 이기종 망간 연동 서비스를 제공한다. 그리고 ISDN 가입자 역시 패킷망과 인터넷과의 연동으로 고속 PC통신 서비스를 이용할 수 있다. 본 논문에서는 통신처리시스템을 통한 이기종 네트워킹의 연동 프로토콜을 중심으로 PC통신을 위한 다양한 백본 네트워크의 연동 프로토콜 스택을 제시한다.