잣나무의 낙엽송림에 있어서 수형과 (樹型) 재적간의 (材積間) 관계 비교

김지홍,이종구 ( Ji Hong Kim,Chong Koo Lee ) 한국산림과학회 1986 한국산림과학회지 Vol.74 No.1

Noticed that large number of the Korean white pine (Pinus koraiensis S. et Z.) has lost its typical excurrent tree from by removal of apical shoot in the process of cone harvesting, the investigation and analysis for the species were made on the basis of the relationship among DBH, total height, merchantable height, and merchantable volume, compared with normally grown Japanese larch (Larix leptolepis Gordon). One hundred sample trees for each species were selected in the same aged stands for the study. Results have indicated that the pine has shown abnormal height growth pattern mainly by the disturbance of external artificial force. The pine`s forked and/or crooked stems by the reason lave led the result of less merchantable volume in the same DBH classes. Consequently, the pine would have undesirable tree form in terms of timber production, unless free from apical shoot disturbances. Considered to the merit of the Korean white pine that can produce timber and pine nuts, management alternatives for the pine stand were suggested to achieve maximum rate of return for the silvicultural investment.

시장진입(市場進入)과 공업발전법(工業發展法) 운용방안(運用方案)

김지홍,Kim, Ji-Hong 한국개발연구원 1989 韓國 開發 硏究 Vol.11 No.2

본고(本稿)는 시장진입(市場進入)에 대해 시장기능(市場機能)에 맡기기를 주장하는 자유경제주의(自由經濟主義)(laissaire faire)와 정부개입(政府介入)을 주장하는 산업정책주의(産業政策主義)(industrial policy)간의 논란(論難)에 대해서 일발적인 이론(理論)을 비교설명하고 석유화학산업(石油化學産業)의 예(例)를 듦으로써 공업발전법(工業發展法) 운용방안(運用方案)에 대한 몇가지 기준(基準)을 제시하려 하였다. 1986년에 발효(發效)된 공업발전법(工業發展法)은 합리화지정(合理化指定)을 통한 시장진입(市場進入)을 제한(制限)함에 있어서 구체적인 기준의 제시없이 2개의 협의회(協議會)에 위임하고 있어 일관성(一貫性) 및 공평성(公平性)의 결여로 사회적(社會的) 비용(費用)이 발생될 우려가 있으며, 본고(本稿)의 분석결과(分析結果)를 토대로 합리화산업지정(合理化産業指定)에 대한 몇가지 기준(基準)을 제시하였다.

불법주차 무인단속시스템의 적정설치지점 선정에 관한 연구

김지홍,이경순,김영환,장현호,Kim, Ji-Hong,Lee, Gyeong-Sun,Kim, Yeong-Hwan,Jang, Hyeon-Ho 대한교통학회 2008 교통 기술과 정책 Vol.5 No.1

미곡시장(米穀市場) 구조변화(構造變化)와 가격지지정책(價格支持政策)

김지홍,Kim, Ji-hong 한국개발연구원 1990 韓國 開發 硏究 Vol.12 No.3

1990년대에 들어 한국(韓國)의 미곡시장(米穀市場)은 대내외적(對內外的)으로 새로운 변화를 겪고 있다. 대외적(對外的)으로는 "우루과이라운드" 및 쌍무협정을 통해 대외개방(對外開放)과 생산보조금(生産補助金)의 감축에 대한 압력에 직면해 있고, 대내적(對內的)으로도 쌀소비의 감소(減少)로 1989년부터는 정부수매가격(政府收買價格)이 도매가격(都賣價格)을 상회하는 구조적(構造的)인 문제가 나타났다. 이러한 가격역전현상(價格逆轉現象)은 민간상인(民間商人)의 재고기능(在庫機能), 계절적(季節的) 가격안정기능(價格安定機能), 유통기능(流通機能)을 위축시키며, 정부재정(政府財政)에 주는 부담을 기하급수적으로 증가시킬 뿐만 아니라 미곡시장(米穀市場)의 가격구조(價格構造) 및 유통과정(流通過程)을 왜곡시키고 있다. 따라서 미가지지정책(米價支持政策)을 통환 증산(增産)보다는 농촌생활기반조성(農村生活基盤造成) 및 농업구조조정(農業構造調整)으로의 전환(轉換)이 필요하다. 그러나 농민들의 농업정책(農業政策)에 대한 불신, 농업기반(農業基盤)의 취약성, 그리고 정치적인 역학관계를 고려할 때 정부(政府)의 일방적인 지시보다는 농민이 선택할 수 있는 대안(代案)을 제시함이 바람직하며, 점진적인 구조개선(構造改善)이 필요하다고 생각된다. 이 논문에서는 전환기에 처한 한국(韓國) 미곡시장(米穀市場) 현황(現況) 대한 경제적(經濟的) 분석(分析)과 사회적(社會的) 비용(費用) 및 마찰(摩擦)을 최소화(最小化)하며 대내외(對內外) 환경변화에 적응할 수 있는 정책대안(政策代案)을 제시하고자 한다. Encouraged by the investment in the rice paddy, the introduction of new varieties (Tong-Il), and the price support program, there has been great success in increasing rice production. Meanwhile, the demand for rice has decreased rapidly as per capita income continues to rise. Rice self-sufficiency has been attained, and a new over-supply problem is emerging. Moreover, the Uruguay Round Agricultural Negotiation would prohibit government price support for agricultural products. In October the Korean government decides the government purchase amount and support price, which works as the price guideline. All interested parties exert political efforts to influence the decision. The continued increase of the government purchase price of rice due to political pressure pushed the government purchase price above the market wholesale price in 1988. Also, the farmers preferred to sell to the government than to the wholesaler. This has discouraged the market mechanism, and the government is to take over the three functions of the market mechanism: stockpiling, seasonal price fluctuation adjustment, and circulation. Another big increase may cause the government purchase price to rise above the consumer price, which might lead to arbitrage opportunities for the farmers and suffocate the market mechanism. However, the current political situations limits the options for the Korean government. This paper argues that a supply control policy will reduce the social cost resulting from the high level of producer price support, and it proposes several second best policies: First, the production of new varieties should be reduced rapidly. Second, the old rice in the government warehouse should be auctioned or disposed of in order to reduce the government handling and management costs. Third, the acreage diversion program should be launched in order to control rice paddy acreage. Fourth, a social welfare program in rural areas should be introduced, since the share of population over 60 is increasing rapidly. Fifth, instead of the price support which is forbidden by the Uruguay Round, Korea should restructure the agricultural industry by developing new crops, by enhancing productivity and by improving the agricultural infrastructure.

조직접착제를 이용한 익상편의 상하결막전위술 3례

김지홍,이지은,이종수.Ji Hong Kim. M.D.. Ji Eun Lee. M.D.. Jong Soo Lee. M.D. 대한안과학회 2006 대한안과학회지 Vol.47 No.12

Purpose: To report the clinical effect of a superior-inferior sliding conjunctival flap for pterygium using fibrin tissue adhesives (Tisseel?; Baxter Healthcare Corporation, Glendale, CA) instead of sutures. Methods: After the primary pterygial tissue was removed from the sclera, a superior-inferior sliding conjunctival flap was created. The fibrin tissue adhesive (Tisseel?) was composed of two solution types: fibrinogen containing aprotinin solution and a CaCl solution containing thrombin. The two solutions with 27 G needle were applied on the bare sclera in sequence, and the conjunctival flap was attached into the bare sclera within 5 seconds. We performed this procedure with a fibrin tissue adhesive instead of sutures in three patients, and follow-up for recurrence of pterygium and postoperative complications. Results: The superior-inferior sliding conjunctival flaps were attached into the bare sclera in all patients using fibrin tissue adhesives. We didn`t find any significant postoperative complications such as ocular pain, epiphora, foreign body sensation, wound defect, or dehiscence. Conclusions: A superior-inferior sliding conjunctival flap constructed with fibrin tissue adhesives should be a useful management tool for the inhibition of the recurrence of pterygial.

터치 터미널의 개요

김지홍,Kim, Ji-Hong 한국정보통신집흥협회 1991 정보화사회 Vol.48 No.-

회원작품 - 반짝반짝 _ 서수소

김지홍,Kim, Jihong 대한건축사협회 2023 建築士 Vol.657 No.-

분산시스템에서의 속성인증서를 이용한 접근통제방안

김지홍,박종화,황태현,Kim, Ji-Hong,Park, Chong-Hwa,Hwang, Tae-Hyun 한국정보기술전략혁신학회 2003 情報學硏究 Vol.6 No.1

With the development of Information Communication Technique, electronic commerce is widely used in internet using public key certificates. And the study for access control in database system is also progressed actively. In this paper, we analyze access control mechanism using attribute certificated and we propose new access mechanism in distributed system using attribute certificates.

LED Array의 반사영상에 의한 경면체의 3차원 형상 측정

김지홍,Kim, Jee Hong 한국광학회 2016 한국광학회지 Vol.27 No.1

본 논문은 경면체의 3차원 형상을 측정하기 위한 광학시스템에 관한 것으로, 특히 LED 배열로 이루어진 점광원과 하프미러, 이미지센서로 구성된 비전시스템을 구성하여 광로분석을 수행하고 효과적인 근사화 방법을 제시한다. 실험을 통하여 취득된 영상 내의 점광원의 상대적 위치변화로부터 경면체의 3차원형상의 효과적 추정이 가능함을 보인다. An optical method to measure the three-dimensional (3D) shape of a surface with specular reflection is proposed. The proposed method is based on the analysis of the geometric path of the light from a point source, and the relative displacements of points in the reflection image. The 3D shape of a concave mirror is shown to be determined approximately via experiments, where the vision system consists of LED array illumination, a half-mirror, and an imaging sensor.

「한국석탄산업(韓國石炭産業)의 현황(現況)과 구조개선방안(構造改善方案)」 : 응답(應答)

김지홍,Kim, Ji-Hong 한국개발연구원 1988 韓國 開發 硏究 Vol.10 No.4