오대산국립공원 계방산지구 관속식물의 고도별 수직분포

안지홍,박환준,남기홍,박찬호,김중현 한국하천호수학회 2017 생태와 환경 Vol.50 No.4

In order to investigate distribution of vascular plants along elevational gradient in the Nodong valley of Gyebangsan, vascular plants of eight sections with 100-meter-high were surveyed from the Auto-camping site (800 m) to the top of a mountain (1,577 m). There were a total of 382 taxa: 89 families, 234 genera, 339 species, 7 subspecies, 34 varieties, and 2 forms. As a result of analyzing the pattern of species richness, it showed a reversed hump-shaped with minimum richness at mid-high elevation. As a result of analyzing habitat affinity types, the proportion of forest species increased with increasing elevation. But, the ruderal species decreased with increasing elevation, and then increased at the top of a mountain. As for the proportion of life forms, the annual herbs gradually decreased with increasing elevation, but it did not appear between 1,300 m and 1,500 m and then increased at the top of a mountain. The trees gradually increased with elevation and decreased from 1,300~1,400 m. The vascular plants divided into four groups by using DCA. The arrangement of each stands was arranged in order from right to left on the Ⅰ axis according to the elevation. The distribution of vascular plants is determined by their own optimal ranges of vegetation. Also, rise in temperature due to climate change affects the distribution of vascular plants, composition, and diversity. Therefore, continuous monitoring is necessary to confirm ecological and environmental characteristics of vegetation, distribution ranges, changes of habitat. Furthermor plans for conservation and management based on these data should be prepared according to climate change.

사이버무역 활성화를 위한 인프라 구축에 관한 연구

안지홍 한국통상정보학회 2001 통상정보연구 Vol.3 No.1

급속히 변화하는 무역환경은 새로운 경쟁을 유발시키게 될 것이며, 이러한 경쟁은 변화하는 환경에 적응하지 못하는 기업들을 도태시킬 것이며, 새로운 환경에 적극적으로 대응하는 기업에게는 더 많은 기회와 이윤을 가져다 줄 것이다. 따라서 새로운 환경에 적응하며, 경쟁에서 살아남기 위해서 기업들은 나름대로 철저한 준비와 함께 적극적인 대응을 하여야 할 것이나, 사회 전반적인 인프라 구축은 개인이나 기업의 입장에서는 대응하기가 어려운 부분이다. 따라서 이러한 사이버무역의 활성화를 위한 인프라의 구축은 국가적 차원에서 논의되어야 할 것이다. 즉, 사이버무역으로의 환경 변화에 대응하기 위핸 산·관·학의 연계에 의한 전문 인력 양성과 법·제도적 개선 방안, R & D 지원 방안 및 시설기반 확충 방안, 정보 인프라 구축 및 물류 기반 조성 방안 등에 대한 사이버무역의 활성화를 위한 인프라 구축은 국가적 차원에서 논의·시행·지원되어야 할 것이다.

한국산 너도바람꽃속(미나리아재비과)의 종자 형태 비교

안지홍,김현진,김동갑,오경해,이기철,서강욱 한국임학회 2012 산림과학 공동학술대회 논문집 Vol.2012 No.-

국립생태원 습지에서 진행 중인 자발적 복원

안지홍,임치홍,남경배,정성희,이창석 한국습지학회 2016 한국습지학회지 Vol.18 No.4

본 연구는 국립생태원 캠퍼스 내에서 주요 습지로 자리잡은 국립생태원 건립 전의 논을 자연의 과정에 맡긴 습지, 물길을 내어 자발적 복원을 유도한 습지 그리고 생태적 원리에 바탕을 두고 복원 처리한 저수지, 즉 생태연못을 대상으로 식생의 정착과정을 모니터링하여 복원의 진행정도를 평가하기 위해 수행하였다. 경관변화 분석 결과, 국립생태원의 현존 습지는 주로 이전의 논에 기원하였고, 일부는 주거지와 산림에서 기원한 것으로 나타났다. 식생의 종 조성 변화에서 초기에는 경작식물이나 인간 간섭에 내성을 갖는 식물이 우세한 경향이었으나 복원이 진행됨에 따라 인간 간섭에 의해 제거되었던 식물들과 습지의 생태적 특성에 어울리는 식물들이 늘어나는 경향을 보였다. 종 다양성과 외래종 출현 비율은 둘 다 복원 사업 진행 단계에서 가장 높았고, 복원 후와 복원 전 단계 순으로 이어져 외래종의 침입이 종 다양성에 영향을 미친 것으로 나타났다. 생태연못에서 나타난 변화는 수변 완충용으로 도입한 식생의 성공적인 정착이 두드러져 향후 외부로부터 오는 환경영향을 완충하는데 크게 기여할 수 있을 것으로 판단되었다. 이상의 결과를 종합할 때, 국립생태원에 성립한 습지식생의 변화는 묵논에서 일어나는 전형적인 천이 초기과정의 모습을 보여 성공적인 복원을 이루어내고 있는 것으로 평가되었다. 최소한의 인위적 보조를 가한 생태연못에서도 복원의 과정은 성공적으로 진행되고 있다고 평가할 수 있다. 특히 다양한 생태적 기능을 발휘할 수 있는 완충식생대의 성공적인 정착은 의미있는 복원효과로 평가할 수 있다. 그러나 아직 완충식생대가 빈약한 구역에 대해서는 그 질을 개선하기 위한 적응관리대책이 요구되었다. This study was carried out to evaluate restoration process of a few wetlands in the National Institute of Ecology (NIE). Wetlands were composed of the former rice paddies that passive restoration was led through only natural process and by creating waterway, and an ecological pond, a reservoir that restorative treatment was practiced. As the result of analysis on landscape change in the current wetland space, existing wetland in NIE was usually from the former rice field and some parts were from the residential area or forest. Change of species composition was progressed from crops or ruderals resistant to human interferences to plant species, which has removed artificially for cultivation and grow usually in the typical wetland. Both species diversity and occurrence of exotic plants were the highest when restoration project is in progress and stages after and before restoration were followed. In an ecological pond that restorative treatment was done, vegetation introduced as riparian buffer was established successfully and thereby it was expected that it could contribute to buffer environmental stress comming from the outside. Synthesized the above mentioned results, change of wetland vegetation established in NIE resembled the typical trend of early successional stage occurring in the abandoned rice paddy and consequently, it was estimated that successful restoration is under progress. Restoration under progress in an ecological pond where artificial aid in the least level was added, could be evaluated in successful as well. In particular, successful establishment of buffering vegetation, which can play diverse ecological functions, could be evaluated as significant restoration effect. But adaptive management to improve ecological quality for the section that buffering vegetation is insufficient, is required.

Slowly Digestible Sweetpotato Flour: Preparation by Heat-moisture Treatment and Characterization of Physicochemical Properties

안지홍,백혜림,김경미,한귀정,최준봉,김양,문태화 한국식품과학회 2013 Food Science and Biotechnology Vol.22 No.2

The preparation and physicochemical characteristics of sweetpotato flour with increased slowly digestible starch (SDS) fraction were investigated under various heat-moisture treatment (HMT) conditions. The optimum conditions for preparing slowly digestible sweetpotato flour established using response surface methodology were moisture content of 22%, temperature of 103oC, and treatment time of 5.8 h. The highest SDS content in heat-moisture treated sweetpotato flour was 57.6%. The relative crystallinity of heat-moisture treated sweetpotato flour decreased, but the X-ray diffraction pattern maintained the A-type. The DSC of the heatmoisture treated flour showed a decreased gelatinization temperature range and gelatinization enthalpy compared with native one. The viscosity profiles and values changed significantly with HMT, resulting in a higher pasting temperature, decrease of the viscosity values, and no breakdown. It indicates that heat-moisture treated sweetpotato flour is more stable at high temperatures and shear rates than native one.

ハンガリー語の私的動詞に関する一考察― アスペクトの觀點から ―

안지홍 한국일어일문학회 2010 日語日文學硏究 Vol.73 No.1

アスペクトの研究において、動詞の分類は重要な意味をもつ。動詞タイプによって、アスペクトの有り様が異なってくるからである。たとえば、運動動詞(dynamic verb)の場合、完成相と継続相という典型的なアスペクトの対立を持つ反面、狀態動詞(static verb)の場合、「シテイル」形を取らないものもあり、形態的には對立するものの時間的展開性のないものもある。しかし、このような運動動詞と狀態動詞の2分類のみでは収めきれない動詞も存在している。この種の動詞は、私的動詞(private verb)と呼ばれているが、人間の<思考・感情・知覺・感覺>を言い表し、時間的展開性はあり得るが、典型的なアスペクト對立はないという特徵を持っている。恐らく、これは多くの言語に當てはまるだろう。しかし、この私的動詞が、どのように內的時間構造をとらえるか、どのような特徵を持つかは言語ごとに異なっている。例えば、ハンガリー語の場合、日本語のように、完成相の形と繼續相の形ともにとることができるが、主に無標形式の動詞(動詞接頭辭のない形式)で表される。また、動詞接頭辭を付加える有標形式になっても、完成相ではなく開始局面を表すことになる。つまり、同じ動詞接頭辭であってもどの動詞グループに付くかによってアスペクト的意味が異なるのである。ただ、注意すべきは、ハンガリー語の私的動詞の全てが動詞接頭辭を付加えて開始局面のみを表すわけではない。思考動詞、感覺動詞、知覺動詞、感情動詞の順で、有標形式が開始局面を表す頻度は減っていく。私的動詞のうち、知覺動詞と感情動詞の大部分は、動詞接頭辭を付加えて形態上のみの對立を表したり、語彙派生をもたらしたりする。上記のように、ハンガリー語という個別言語における私的動詞の特徵も見えるが、次のような現象は他言語でも見られると思われる。①完成相と繼續相という典型的なアスぺクト對立を持たない。②完成相の形と繼續相の形の両方を取って、形態上の對立をもつことができる。③完成相の形のみで表される私的動詞も存在し、繼續相の形のみで表される動詞も存在しているという類似點をみつけることができる。以上、私的動詞の意味・形態論的特徵をアスペクトの觀點からの高察してみた。今後はアスペクト的觀點のみならず、今後の課題とした人稱との関わりなども含め、モ─ダルな側面まで視野に入れて考察を進めたいと思う。

ハンガリー語の形容詞述語文に関する一考察 -日本語との比較を中心に-

안지홍 일본어문학회 2022 일본어문학 Vol.97 No.-

This study examines the meaning of the Hungarian adjectival predicates by applying the category of <temporal stability> from a typological perspective. The main purpose of this study is to explore the semantic features of Hungarian adjectives in detail and to present the characteristics of Hungarian adjectives clearly on the basis of the typological study. Based on the research findings of Givón (2001:49), Kudo (2012:159), etc., this study presupposes that nouns, adjectives, and verbs are on a continuum, and that <state> and <property> are mutually transferable. Although most of the studies on adjectives in Hungarian have mainly focused on their derivations, this study examines <state> and <property> categorized according to the meanings expressed by adjectival predicates regarding <temporal stability>. The results are summarized as follows. ① There are no grammatical ways in Hungarian to distinguish between accidental <state> and permanent <property>, unlike Russian and Spanish. ② The meanings expressed by adjectival predicates are classified into four groups: <state>, <existence>, <property>, and <relationship>. ③ Adjectival predicates can mean either <state> or <property> in conformity with the syntactic rules relating to the following: (a) addition of time adverbs, (b) types of subjects, and (c) context 本稿では、<時間的限定性>を軸として、ハンガリー語の形容詞述語文が表す意味について考察し、その中心となる<特性>と<状態>との相互移行について類型論的な観点から論じる。<時間的限定性>とは知覚․体験できる一時的現象か、思考によって一般化された恒常的特性かのスケール的な違いに関わるものである。従来、ハンガリ─語における形容詞の研究は動詞または名詞からの派生を中心に行われてきたので、類型論の研究成果にしたがって、ハンガリー語の形容詞述語文を対象にし、<時間的限定性>との相関性について記述する。世界の諸言語のように、ハンガリー語の形容詞述語文も<特性><状態><存在><関係>を表し、この中で中心的な<特性>と<状態>は相互移行が可能であることを確認した上で、その相互移行に関わっている要素について記述を行う。ロシア語やスペイン語などには一時的<状態>と恒常的<特性>を区分する形態論的な手段が存在するが、ハンガリー語と日本語標準語には<特性>か<状態>かを表す形態論的な手段がない。したがって、構文論的な要素である時の状況成分や文脈や≪個≫主体か≪類≫主体かによって相互移行が起こる。

디지털 제품의 사이버무역의 법적 문제에 관한 연구

안지홍 한국기업경영학회 2001 기업경영연구 Vol.8 No.1

What is most important in the Cybertrade is all about trading On-Line Goods. In terms of visible products, trading including contract, payment, and shipping documents can be carried out through computerization or automatization. However in terms of On-Line Goods, the real transmission is carried out not by physical transmission but by wire transmission, which needs for new customs, system and rules. In addition, such a wire transmission needs a totally different marketing strategy from the beginning of trade. Therefore conflicts in the wire transmission should be solved in a different way from the existing one. As communication networks such as the Internet have been developed, the world trade environment rapidly changes. It is necessary that we adapt ourselves to the changes while prepare for the future. To activate the Cyertrade, first our government should avoid overwhelmingly restricting, taxing, and censoring on the trade, leading to control the market by the principle of market. The second role of our government is to let the general rules of Cybertrade made by business and individuals concerned not by government, itself. The third role is to let the Internet relevant industries operated by the rule of competition among businesses and individuals or consumers` choice not by the government regulations. Finally, the government as representative not as regulator should constitute various kinds of regulations for an active and smooth Cybertrade around the world. At the same time, businesses and individuals should recognize the importance of credit in the Cybertrade and keep commercial morals intact. The Cybertrade is not already completed. It is like a fledgling. The trade will change into a more economical and effective direction, accomplished by a lot of new problems. It requires to conduct a serious study not only on intellectual rights, taxation, internationally unified customs and procedure, protection of individual information and customers but also on effective and reasonable development of Internet related technology and communication technology.

태백산국립공원 백단사코스의 고도별 관속식물상 변화와 환경요인 분석

안지홍,박환준,이새롬,서인순,남기흠,김중현 한국환경생태학회 2019 한국환경생태학회지 Vol.33 No.4

This study generated a list of plants in eight sections from the Baekdansa ticket office (874m) to Cheonjedan (1,560m) divided in the interval of 100m above sea level to examine the species diversity patterns and distribution changes of the vascular plants at different altitudes in Taebaeksan National Park. Four site surveys found a total of 385 taxa: 89 families, 240 genera, 345 species, 5 subspecies, 34 varieties, and 1 form. A result of analyzing the change of species diversity along elevational gradients showed that it decreased with increasing elevation and then increased from a certain section. A result of analyzing habitat affinity types showed that the proportion of forest species increased with increasing elevation. On the other hand, the ruderal species appeared at a high rate in the artificial interference section. A result of comparing the proportion of woody and herb plants showed that the woody plants gradually increased with elevation and rapidly decreased in the artificial interference section. On the other hand, the herb plants showed the opposite trend. A result of analyzing the change of distribution of species according to altitude with the DCA technique showed that the vascular plants were divided into three groups according to the elevation in order on the Ⅰ axis with the boundaries at 900m and 1,300m above sea level. The arrangement of each stand from right to left along the altitude on the Ⅰ axis with a significant correlation with warmth index (WI) confirmed that the temperature change along the altitude could affect the distribution of vascular plants, composition, and diversity. Therefore, the continuous monitoring is necessary to confirm ecological and environmental characteristics of vegetation, distribution ranges, changes of habitat. We expect that the results of this study will be used as the basic data for establishing the measurement measures related to the preservation of biodiversity and climate change. 태백산국립공원의 고도별 관속식물의 종다양성 패턴 및 분포변화를 파악하기 위해 백단사매표소(874m)에서 천제단(1,560m)까지 해발 100m 단위로 등분하여 8개 구간에 대한 식물목록을 작성하였다. 총 4회에 걸쳐 현지조사를 실시한결과 89과 240속 345종 5아종 34변종 1품종의 총 385분류군이 출현하였다. 고도별 종다양성의 변화를 분석한 결과, 고도가높아짐에 따라 점차 감소하다가 특정 구간에서부터 다시 증가하는 경향을 보였다. 구간별 출현종의 생육지 유형을 분석한결과, 고도가 높아짐에 따라 산림에 생육하는 종의 비율은 증가하였고, 교란지에 생육하는 종의 비율은 인위적 간섭이 높은곳에서 높은 비율로 출현하였다. 구간별 목본식물과 초본식물이 각각 차지하는 비율을 비교한 결과, 목본식물의 경우 고도가높아짐에 따라 점차 증가하다가 인위적 간섭이 높은 구간에서 큰 폭으로 감소하는 경향을 보였고, 초본식물의 경우 그 반대의경향성을 나타냈다. DCA기법을 이용하여 출현종의 고도별 분포변화를 분석한 결과, Ⅰ축상의 해발 900m와 1,300m를경계로 3개의 그룹으로 구분되었다. 구간별 식분의 배치는 Ⅰ축상의 오른쪽으로부터 왼쪽을 향해 고도에 따라 배열되었고, Ⅰ축은 온량지수(WI)와 유의한 상관관계를 나타냄에 따라 고도에 따른 온도변화가 식물분포의 양상에 영향을 미칠 수 있음을확인할 수 있었다. 따라서 기후변화로 인한 기온상승은 식물종의 수직 분포 한계선과 식물군락의 종조성 변화 및 다양성에영향을 미칠 것으로 예측된다. 본 연구결과는 생물다양성의 보전과 기후변화에 따른 관리방안 마련을 위한 기초자료로 활용될것으로 판단된다.

Bayesian Optimization of Steam-Methane Reformer Tube using Computational Fluid Dynamics

안지홍,강동현,( Ali Cherif ),신동경,김경일,함수빈,이철진 한국공업화학회 2023 한국공업화학회 연구논문 초록집 Vol.2023 No.0