지하수-습지-지표수 상호작용에 따른 수화학적 특성 연구

유한선(Han-Sun Ryu),김희정(Heejung Kim),문진아(Jinah Moon),Naing Aung Khant 대한지질학회 2021 대한지질학회 학술대회 Vol.2021 No.10

본 연구에서는 전 세계 하나의 종만 존재하는 희귀종 물거미가 서식하고 있는 은대리 물거미서식지 일대에서 지하수-습지-지표수 상호작용에 따른 수화학적(양이온, 음이온, 알칼리도, 산소-수소 동위원소, 라돈) 특성을 분석하였다. 현장조사 지점은 은대리 물거미서식지(습지)를 중심으로 500 m 내외에 위치하고 있는 지하수 4지점, 습지 3지점, 지표수 3지점을 선정하였다. 2021년 5월부터 8월까지 총 4회 현장조사 및 시료채취를 수행하였다. 연구지역의 지하수, 습지 그리고 지표수의 수리화학특성 분석 결과 습지와 가장 근접해 있는 심부 지하수(EDG4)를 제외한 모든 지점이 Ca-HCO₃ 유형에 도시되었으며, EDG4에 경우 Na-HCO₃ 유형에 도시되어 다른 지점과 구분되었다. 산소-수소 동위원소 분석자료는 지하수, 습지 및 지표수의 물 모두 같은 기원인 것으로 보인다. 하지만 지하수와 지표수는 비슷한 동위원소 함량(δ<SUP>18</SUP>O: -8.51~–7.11‰, δD: -57.13~-49.78‰)을 가지고 있어 함께 도시되는 것을 볼 수 있었으나, 습지의 경우 지하수와 지표수에 비해 비교적 무거운 동위원소 함량(δ<SUP>18</SUP>O: -5.88~–2.13‰, δD: -41.76~-27.13‰)을 보이며 확연히 구분된 위치에 도시 되었다. 라돈의 경우 지하수, 습지 및 지표수 모두 조사를 시작한 5월에서부터 6월, 7월 점차적으로 농도가 감소하는 경향을 보였다. 지하수에서 가장 높은 라돈 농도를 보이며, 지표수의 농도가 가장 낮게 측정 되었다. 습지는 지하수와 하천수 사이의 농도 값을 보여 습지가 지하수와 지표수 모두의 영향을 받고 있을 가능성 또한 보여준다. 은대리 물거미서식지는 우리나라 유일하게 멸종위기 물거미가 서식하고 있는 의미있는 지역으로 이 일대 지하수, 습지 그리고 지표수의 수화학적 특성 연구를 통해 물거미 서식 환경에 대한 기초적인 수리생태학적 정보를 제공할 수 있을 것으로 기대한다.

Illegal Trade between India and Myanmar

Naing Naing,Kim, Chan-wahn 한국외국어대학교 인도연구소 2015 남아시아연구 Vol.20 No.3

Illegal trade, a long-standing issue in Myanmar and India, hinder the socio-economic development of the both countries. Therefore, this paper discussed illegal trade relations between India and Myanmar with special reference to its impacts on Myanmar socio-economic sectors. It was observed that Myanmar has suffered from many negative impacts, except few positive, of the illegal trade with India on their socioeconomic fronts. Illegal trade can be considered in a good way that can improve living standard of the people who involve in the illegal trade activities in Myanmar. Nevertheless, illegal trade is mostly regarded as a barrier to the socio-economic development of the country losing the government"s revenues and creating unfair competition on the market, providing a source of corruption, damaging public health and even harming for environment. It is recommended that in order to enhance formal trade cooperation and reduce illegal trade between Myanmar and India, the existing rules and procedures of trade and the range of commodities allowed to be traded in the border trade agreement should be revised and reformulated. It is said, however, that trade liberalization alone will not be able to contribute to promote trade and reduce illegal trade, if a pro-poor trade strategy is not included in the trade regimes of the countries. So, government of Myanmar has to actively engage in tackling down various problems to promote legal trade with government of India, in general and Manipur state government, in particular. If then, certainly the relations between India and Myanmar will be greatly improved. It is also good for the future prospect of sub-regional cooperation such as BIMSTEC and BCIM that bridge between South and Southeast Asian regions.

Plant regeneration through various explants of Lilium longiflorum hybrid “Bright Tower” and determination of ploidy level of regenerated plants

Naing, A.H.,Yun, H.,Lucidos, J.,Hwang, Y.J.,Kim, C.K.,Ahn, B.J.,Lim, K.B. Taylor Francis 2014 Plant biosystems Vol.148 No.2

Seasonal Effects on Shoot Regeneration from Petal Explants of Chrysanthemum (Chrysanthemum morifolium) cv. 'Baeksun'

Naing, Aung Htay,Kim, Chang Kil 경북대학교 농업생명과학대학 2014 Current Research on Agriculture and Life Sciences Vol.32 No.4

This is the first report describing the seasonal conditions affecting shoot regeneration by the chrysanthemum cv. Baeksun. The shoot regeneration from petal explants was found to be more favorable from September to December, reaching the highest values in December. In addition, the quality of the shoots was also influenced according to the season of the explant collection, where healthy and uniform plants were derived from the explants collected in December. Choosing the proper season for explant collection affected the successive plant growth parameters (i.e., plant height and fresh weight). Thus, the current results strongly suggest that season plays an important role in plant tissue culturing, which is an essential tool for micropropagation and Agro-bacterium-mediated genetic transformation studies.

Geology, geochemistry, mineralogy of Phayaung Taung, Patheingyi Township, Mandalay Division, Myanmar

NAING AUNG KHANT,Adam Piestrzynski,임충완 한국지질과학협의회 2021 Geosciences Journal Vol.25 No.2

Myanmar is endowed with a diverse array of metallic and nonmetallic mineral deposits, a number of which have recently been developed as world-class mines. Tagaung Taung deposit north of Mandalay is a resource approximately 40 km from Mandalay City. The Phayaung Taung gold deposit from the Slate Belt is hosted in phyllite, schist, and quartzite. Mineralization is associated with the stockwork quartz vein system. Wall-rock silicic alteration by cryptocrystalline quartz or amorphous silica is dominant. Phyllic alteration is characterized by sericite, quartz, chlorite, and pyrite with disseminated hematite. Gold occurs in tourmaline-quartz and sulfide-bearing quartz veins. It is associated with pyrite and chalcopyrite as well as Au-Ag-Bi-Te ore assemblages of petzite, hessite, and tellurobismuth. The Phayaung Taung gold deposit shows typical mesothermal characteristics. Scanning electron microscopy with energy-dispersive X-ray analyses revealed the average gold content of electrum grains, i.e., 75.1 wt% Au, with grain sizes ranging from 3 to 40 μm. Moreover, secondary native gold grains were formed with hematite and iron oxides in secondary remobilized/deformed veins at strongly brecciated/oxidized zones. The association between gold and altered sulfides suggests that gold was refractory in sulfides. It can be considered that supergene oxidation extended to deep mineralization veins. Such gold grains had the highest Au content, and are often in almost pure condition. This study discussed the geology, geochemistry, and mineralogy of the Phayaung Taung gold mine in Myanmar. New minerals were identified in the samples obtained from the study area, which were subjected to multiple analyses to determine their properties and understand the relationships between them.

The Beginnings of the Sudhamma Buddhist Order of Monks

Naing, Shwe Zin Hpon Korea Institute for ASEAN Studies 2012 Suvannabhumi Vol.4 No.2

This article uncovers the beginning of the Sudhamma Buddhist order tracing its background history. After ascending the throne, being interested in trying to bring back Buddhism to its ancient strength and prosperity, King Mindon paid fully attention in all the religious affairs like King Asoka. Therefore, the different Sangha associations had emerged in his time. It had grown wider and wider and that brought about many adverse effects. During the time of King Thibaw, to reorganize the Sangha associations, he appointed two Supreme Leaders; one for Sudhamma and one for the Rhwekyan Buddhist Order of Monks. Thus the rise of the term of Sudhamma Buddhist Order of Monks became the most popular among the Theravada Buddhist monks. This article, tracing its history, will answer the question that what about any difference between the Sudhamma Buddhist Order and others especially?

Combined effects of supplementary light and CO₂ on rose growth and the production of good quality cut flowers

Naing, Aung Htay,Jeon, Su Min,Park, Jun Seong,Kim, Chang Kil,Charles, M. T. Canadian Science Publishing 2016 Canadian journal of plant science Vol.96 No.3

<P> The effects of supplementary lighting with high-pressure sodium (HSP) lamps alone or in combination with carbon dioxide (CO2) on the growth, yield, and flower stem quality of two rose cultivars (‘Loving Heart’ and ‘Top Grace’) were studied. Compared to natural lighting (control), supplementary lighting alone was beneficial for plant growth, and it increased plant height, stem diameter, and the number of axillary shoots. Furthermore, increases in flower stem yield (@@>@@70 cm), flower stem diameter, fresh weight, and the number of petals per flower were also observed. The combination of supplementary lighting and CO2 significantly enhanced all of the studied parameters compared to supplementary lighting alone. Moreover, stomatal density and chlorophyll fluorescence were seemingly affected by either supplementary lighting alone or in combination with CO2. This is the first study to examine the beneficial effects of combined supplementary lighting and CO2 conditions, and the resulting information is essential to rose growers and commercial production. </P>

Seasonal Effects on Shoot Regeneration from Petal Explants of Chrysanthemum (Chrysanthemum morifolium) cv. 'Baeksun'

Naing, Aung Htay,Kim, Chang Kil Institute of Agricultural Science and Technology 2014 慶北大農學誌 Vol.32 No.4

This is the first report describing the seasonal conditions affecting shoot regeneration by the chrysanthemum cv. Baeksun. The shoot regeneration from petal explants was found to be more favorable from September to December, reaching the highest values in December. In addition, the quality of the shoots was also influenced according to the season of the explant collection, where healthy and uniform plants were derived from the explants collected in December. Choosing the proper season for explant collection affected the successive plant growth parameters (i.e., plant height and fresh weight). Thus, the current results strongly suggest that season plays an important role in plant tissue culturing, which is an essential tool for micropropagation and Agro-bacterium-mediated genetic transformation studies.

Differential expression of anthocyanin structural genes and transcription factors determines coloration patterns in gerbera flowers

Naing, Aung Htay,Park, Da Young,Park, Kyeung Il,Kim, Chang Kil SpringerOpen 2018 3 Biotech Vol.8 No.9

<P>We investigated the expression of anthocyanin structural genes and transcription factors (TFs) associated with varying anthocyanin content during different developmental stages (S1-S4) of the gerbera cultivars Nathasha' and 'Rosalin'. Accumulation of anthocyanin started at S1 and reached a maximum at S3 in both cultivars. Enhancement of anthocyanin content in Nathasha' was associated with upregulation of ANS and MYB10, whereas in 'Rosalin', upregulation was associated with CHS1, MYB10, and MYC1 . Low-temperature exposure (6 degrees C) enhanced anthocyanin content to a greater extent than that at 22 degrees C via stronger upregulation of CHS1 and MYB10 in Nathasha' and CHS1 in 'Rosalin', irrespective of flower developmental stage. However, differences in anthocyanin content between the two cultivars were found to be influenced by the expression levels of all structural genes and TFs, irrespective of flower developmental stage and temperature conditions. We suggest that differences in the regulation mechanisms of anthocyanin biosynthesis and coloration pattern between Nathasha' and 'Rosalin' are related to differences in the expression patterns of structural genes and TFs; however, further functional studies of the key genes in anthocyanin biosynthesis are needed.</P>

An efficient protocol for Agrobacterium-mediated genetic transformation of recalcitrant chrysanthemum cultivar Shinma

Naing, Aung Htay,Ai, Trinh Ngoc,Jeon, Su Min,Lim, Sun Hyung,Kim, Chang Kil Springer-Verlag 2016 ACTA PHYSIOLOGIAE PLANTARUM Vol.38 No.2