• 한국수학사학회지
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• 제23권1호
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• pp.41-52
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• 2010

고대의 인도수학은 산스크리트어로 쓰여 있고, 수학의 법칙이나 문제들은 구전되었거나 필사본의 형태로 경전 속에 포함되어 있으며, 학생들이 암기를 쉽게 할 수 있도록 아주 간결하게 정리되어 있다. 고대 인도의 많은 수학자들은 일찍이 십진법, 계산법, 방정식, 대수학, 기하학, 삼각법 등의 연구에 공헌하였다. 이 논문은 고대 인도수학과 다른 문명권의 수학발전을 비교하였다. 고대 그리스 수학이 공리적이고 연역적이라면, 인도수학은 양적이며 계산적이지만 원리를 가지고 문제를 해결하는 특성이 있다. 고대 인도와 타 문명권의 수학을 비교하는 것은 오늘날 수학교육과 수학사 연구에 의미가 있는 것으로 사료된다.

• 보존과학회지
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• 제36권1호
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• pp.1-14
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• 2020

This study investigates the crystallinity distribution of ancient silk. Owing to the inherent multi-hierarchical structure of silk protein and the complicated structural changes that occur due to various burial environments, it is challenging but worthwhile to study ancient silk ageing behavior, which is based on the fact that ageing begins with a single fiber and then spreads to a whole fabric. Crystallinity was one of the most effective indicators found to reveal the ageing status of silk. Therefore, a synchrotron radiation-based X-ray diffraction(SR-XRD) method was employed to study the crystallinity distribution of single fibers of ancient silk unearthed from seven archaeological sites in China from historical periods including the warring states, Han dynasty, Song dynasty, and Ming dynasty. In comparison, the conventional X-ray diffraction method, which uses large amounts of samples, was also performed to determine the integral crystallinity of ancient silk. Thermal stability experiments by thermogravimetry(TG) as well as morphology observations by scanning electron microscopy(SEM) and optical microscopy(OM) all confirmed the deterioration of ancient silk. Moreover, the ageing mechanism of ancient silk was proposed with the assistance of an artificial ageing study. The results confirmed the effectiveness of SR-XRD as an ageing indicator, revealing the crystallinity distribution. This research could provide motivation to determine the deterioration status of ancient silk, and would also aid in explaining the fragility of ancient silk due to ageing.

• Animal cells and systems
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• 제11권2호
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• pp.147-153
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• 2007

DNA extracted from ancient bones of Cervidae animals was examined to identify the species and to determine the phylogenetic relationships to those from extant cervids. Abundant ancient bones were excavated from Kumsung archaeological site in Jeju Island, Korea, and were identified as Cervidae animals based on morphological features of their antlers and lower mandibles. Their mitochondrial DNA (mtDNA) control region (CR) was partially sequenced and subsequently compared with those previously reported in database. The results confirmed that the ancient sequences are lineage of Cervidae. On the phylogenetic trees constructed using the sequence diversity of the CR sequences of family Cervidae, the ancient DNA sequences were found on distinct clusters. The ancient sequences were located in the subfamily Capreolinae cluster, and six ancient sequences were closely related to those of extant Korean roe deer in Jeju Island and Korean Peninsula. Consequently, the results of this study suggest that the roe deer inhabited Jeju Island in ancient times. However, there is no evidence for the existence of subfamily Cervinae, including Sika deer, while it has been described in several historical records. The results suggest that this finding could contribute to understanding of the origin and phylogenetic relationships of extant and ancient roe deer on Jeju Island.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제14권7호
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• pp.2769-2784
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• 2020

This paper aims to compare the scenic images of four ancient Chinese cities including Lijiang, Pingyao, Huizhou and Langzhong, so as to provide specific development strategies for the ancient cities. In this paper, the ancient cities' scenic images are divided into three sub-indexes and eight evaluation dimensions. Based on this, the study first uses Python software to collect tourists' online comments on the four ancient cities. Then, the social network analysis method is used to build a high-frequency keywords matrix of tourist comments and the R language is used to generate a visual network graph. After this, the entropy weight method is used to determine the weights and values of eight evaluation dimensions. Finally, the tourists' overall satisfaction indexes of the four ancient cities are calculated accordingly. The results show that (1) the overall satisfaction of Lijiang is the highest, while that of Huizhou is the lowest; (2) from the weight of each evaluation dimension, it can be seen that tourists care more about the national culture and historical culture; (3) from tourists' satisfaction index on each evaluation dimension of the four ancient cities, we can find that the four ancient cities has their own advantages and disadvantages in tourism development. (4) local tourism-related institutions should strengthen their advantages and improve their deficiencies so as to enhance tourists' overall image of the ancient city.

• 해부∙생물인류학
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• 제31권4호
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• pp.105-119
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• 2018

고고유전학은 고DNA에 대한 분석을 고고학 및 인류학적 증거와 교차검증함으로써 인류사에 대한 과학적인 사실을 정립하고자 하는 학문이다. 30여 년 전 시작된 고DNA 연구는 급격하게 발전하여 최근 10년간은 전장유전체의 염기서열을 분석하는 고유전체 연구로 그 범위를 확장하였다. 이를 통해 고인류 종들과 현생 인류 고대 집단들의 기원 및 이주 패턴들을 진화유전학적으로 엄밀하게 연구하는 것이 가능해졌다. 본 연구에서는 고고유전학의 전반적인 분석 원리와 최근의 고유전체 연구 성과 및 경향을 검토하였다. 시료 채취 기술 및 통계 분석 방법의 발전, 고인류 및 서유라시아 고대 집단들의 고유전체 연구들을 통해 정립된 연구 방법들은 현재 다른 지역들에도 활발하게 적용되고 있는 추세다. 그러나 한반도를 포함한 동아시아 고유전체 연구는 아직 부진한 실정이다. 본 연구를 통해 아직 수행된 바 없는 한반도 고유전체 연구가 진행될 시 어떠한 사실들을 밝힐 수 있는지 그 가능성을 전망하고자 한다.

• 헤리티지:역사와 과학
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• 제37권
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• pp.309-326
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• 2004

유적지의 발굴 현장에서 고대인의 삶과 동일시대에 존재했던 토양을 이용하여 유기 화학적 방법을 통한 잔존 지방산 분석과 현미경 관찰로 기생충 충란과 화분의 분석, 그리고 고대 미생물의 유전자 분석을 수행 할 수 있다. 지방산 분석은 인간과 동물의 부산물을 규명할 수 있어 고대 화장실 문화의 복원을 위해 유용하게 사용되어지고 있다. 유기 화학적으로 TLC와 GC-MS 방법을 이용하여 고대 식생활과 영양원을 확인 할 수 있다. 고대 토양의 현미경 관찰로는 기생충의 충란과 화분을 확인 할 수 있는데, 기생충의 확인을 통해 과거 인류의 질병을 유추 할 수 있으며, 화분은 고대 인류 거주지 주변의 환경을 간접적으로 확인 및 복원이 가능하다. 또한 유전자 분석을 통하여 유적지 토양에 존재하는 고대 생명체의 유전적 다양성과 변화 양상을 확인 할 수 있으며, 멸종된 생명체의 유전자 보존에도 중요한 역할을 수행할 것이다. 유기화학, 토양학, 미생물학, 분자 생물학, 유전학과 같은 자연과학적 방법을 이용하여 고고학적 발굴지의 토양을 분석한다면 기존에 해석하기 힘들었거나 간과하였던 부분을 재해석과 이해를 돕는데 상당한 도움이 될 것이다. 또한 생물 종 다양성과 고대 인류의 기원과 생활문화를 이해하는데도 중요한 역할을 수행하리라 생각된다.

• 인문언어
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• 제5권
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• pp.109-126
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• 2003

The aim of this paper is to elucidate ancient Chinese philosophy and linguistics through the concept of the Dao. Ancient Chinese thought had developed together with ancient Chinese theories of language and the linguistic features of Classical Chinese. The concept of the Dao served as an intermediary among them. The Dao which ancient Chinese philosophers sought for has several characteristics: ethical normativity, wholeness, dynamicity, non-reducibility. Linguistic studies also revealed them. The following linguistic features of Classical Chinese are the cause and/or the effect of such Dao-based philosophy and linguistics: No explicit subject-predicate sentential structure, no parts of speech, heavy reliance on the word order and context for meaning determination, no explicit distinction between compound words and a sentence, the pictographic or the ideographic features of Chinese graphs, and non-existence of a copula.

• 한국콘텐츠학회논문지
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• 제18권4호
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• pp.388-397
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• 2018

현대도시의 끊임없는 확장과 갱신에 따라 고성구(古城區)는 역사문화공간으로써 현대 도시확장으로 인해 받는 타격도 점점 커져갔다. 현재 고성구에 대한 재생보호는 좋은 효과를 거둔 것도 있으며 효과가 별로 좋지 않은 것도 있다. 본문은 이 배경에서 출발하여 '공간실천', '공간재현', '재현공간'을 프레임으로 3개의 재생 고성구 공간생산에서의 권한운영을 밝히고 이해관계자들이 공간조성에 끼치는 영향을 지적하며 재생방식의 구성분석을 진행할 것이다. 구체적인 물질, 사회, 권력, 문화의 각도에서 오진 고성구 재생구축의 방법을 분석하고, 고성구가 어떻게 재생보호를 진행할지에 대해 새로운 방법과 참고를 제공할 것이다. 고성구와 마을 등 역사문화지역 재생문제의 연구와 분석에 따라 정부는 명확하게 소유권문제와 계획자, 관리자를 지정해야 하며 지역문화와 현대문화의 융합을 추진해야 한다는 것을 알게 되었다. 전체적인 공간의 사람과 문화, 건축은 서로 상호작용을 하여 고성구의 영향력을 높여야 한다.

• 복식
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• 제53권6호
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• pp.45-61
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• 2003

Parhae and ancient Japan officially exchanged at 34 times during the period from AD.727 to AD.920. The envoys of each nation also sent the other nation with some items. The names of the items are identified by the historical records; those which Parhae presented to ancient Japan were leader shoes, which is called AmMoHwa(암모화), belt(대) various leaders and those which ancient Japan presented to Parhae were formal uniforms[관복], various textiles, coronet, shoes. We can recognize that the leader items of Parhae are frequently recorded as the gift to ancient Japan because they were the main manufactures in Parhae at that time. In addition, the government of ancient Japan gave the Parhae's envoys a high rank, five-grade(5위) and noble costumes like JinKaeEui(진개의) and so on were well-matched with their high rank. While being official exchanges, it is supposed that there were lots of other unofficial exchanges. Historically, in Japan, the time came under Nara(나양) era(AD.719~AD.794) and the beginning of PyungAn(평안) era(AD.794~AD.1192) and in the same way in Parhae, King Mun(737-793) reign. One of the features at that time is that Tang's culture was introduced to ancient Japan positively. Since Nara era strongly accepted Tang's culture, I assume that Nara costumes were affected by Tang's therefore they are the same as Tang's. In the same way, Parhae's costumes are the same as Tang's, too. The point is, it is expected that the costumes of Parhae which were exchanged with ancient Japan are similar to those of Nara by the medium of Tang's costumes.

• 보존과학연구
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• 통권25호
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• pp.47-74
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• 2004

We investigated the nucleotide substitution and insertion polymorphism of the hypervariable region Ⅰ and Ⅱ in mt DNA by sequencing ancient DNA from 51 ancient bones and teeth excavated at Nuk-do and Yimdang-dong in Korea. It revealed 35 sequence types from the ancient Korean. Of these, different sequences were 34 sequences. There were 19 and 38 base substitutions in HVI and HVⅡ, respectively. Some substitutions were characteristic of East Asian populations as compared with data reported on Caucacianpopulations,16051, 16150, 16172, 16223 in region I and 73, 263 in region II were noted as polymorphic sites, respectively. These were distributed evenly along the control region, though the frequency of each site was variable. Nucleotide substitution rather than insertion and deletion was the prevalent pattern of variation. Insertion of cytosine between312 and 315 in region HVⅡ were detected up to 98% in 51 ancient bone samples. This sequence data represents a phylogenetic tree using NTI DNA Suite computer program. The phylogenetic tree showed that mt DNA sequences of Nuk-do bones were relative to west Siberian and Indonesian. The usefulness of mt DNA sequencing in ancient Korean population excavated atarchaeological sites is based on biological and historical evidence for origin and migration of ancient Korean.