美國의 私有林支援 政策 硏究

石玄德,尹汝昌 한국산림경제학회 2003 산림경제연구 Vol.11 No.1

미국의 사유림관리에 있어서 타용도 전용이 가장 큰 문제이다. 따라서 미국의 사유림 지원정책의 주요 목적은 사유림의 타용도 전용을 막기 위한 것으로 교육, 기술지원, 자금지원 등 세가지 주요 정책수단을 이용하고 있다. 사유림지원 프로그램은 약 10종류가 되는 데 이중 Forest Land Enhancement Program(FLEP) 과 Forest Legacy Program(FLP) 이 가장 중요하다. 그 외 다른 프로그램은 임업 이외의 부문에서 지원되고 있어 지원정도가 많지는 않다. 사유림 지원제도를 관리하는 주요 행정부는 산림청이고, 자연자원보전청은 사유림 보호와 직접적으로 관련된 지원제도에 대해서만 관리하고 있다. Since the vast landscape of American forests is increasingly threatened by the rising demand of commercial and residential uses, the major interests and goals of policies for the privately owned forests in US are protecting them from converting for oher uses. In order for protecting privately owned forests, the American Government uses three major tools; education, technical assistance, and financial aid. Two major aiding programs-Forest Land Enhancement Program (FLEP) and Forest Legacy Program (FLP)-are considered as the heart of aiding programs for the privately owned forests among more than 10 programs. Other aiding programs such as Conservation Reserve Program(CRP) can be available for the privately owned forests although the forest can not be the major objects for aiding. Forest Service under the USDA has been the major government body of administrating policies for the private forests, while NRCS(Natural Resource Conservation Service) deals with a part of them, mainly protection policies of the private forest.

대화체 음성번역 시스템을 위한 원격 음성입력기 설계

이광석,김현덕 진주산업대학교 산업과학기술연구소 2007 산업과학기술연구소보 Vol.- No.14

음성 인식기를 사용할 때에 마이크의 위치에 구애받지 않고, 자동적으로 음성을 검출하는 음성 입력 방식은 사용자의 측면에서 대단히 편리하다. 본 연구에서는 대화체 음성 번역 시스템에 이와 같은 원격음성 입력 기술을 구현하기 위하여 자동 음성부 검출 방법과 마이크 어레이를 이용한 다채널 잡음 감소 방법을 적용하였다. 신호 대 잡음비가 25[dB]인 상황에서, 음성부의 시작점과 끝점이 기준점의 200[msec] 이내로 검출될 정확도는 약 97%이었다. 지연-가산 방법을 이용한8 채널 마이크 어레이 잡음 감소기는 최대 6[dB]의 신호 대 잡음비의 개선을 나타내었으며 음성 인식에서의 오류 감축률은 약 16% 정도를 보였다.

건설 예정의 Coil Center 운영에 대한 Simulation 분석

성덕현,윤원영,옥영석 釜山大學校生産技術硏究所 1997 生産技術硏究所論文集 Vol.52 No.-

본 논문은 건설예정인 coil center의 처리능력과 물류를 평가하기위한 시뮬레이션모델을 개발하는 연구이다. 경험적인 추정에 의한 야드에서의 수량, 저장시간의 분포를 구하고 3가지 운영대안이 제안되어 SLAMII를 이용한 시뮬레이션을 실시하며 최종적인 대안은 설비(Slitter)의 추가가 추천되어 이 것에 대한 시뮬레이션 결과를 분석한다. 그 결과 Slitter와 저장야드의 병목현상이 나타나므로 향후 이부분에 대한 기술적인 고려가 필요한 것으로 나타났다. In this paper, the simulation model is developed to evaluate the capacity and the material flow of the planned coil center. By the empirical estimation, the distributions of the quantity and the elapse time in the yard are obtained, and three alternatives are proposed. Based on the primitive simulation using SLAMII, the final alternative is prepared which includes one more facility (slitter), and the simulation is also performed. The result shows that the slitter and the storage yard are the bottleneck points throughout the slitting process. And the problem should be solved technically in managerial decision making related to construct the new coil center.

Helicobacter pylori와 대장균의 Shuttle Vector 개발

조명제,이우곤,이상룡,김경희,안영숙,김성희,김현주,류복덕,최여정,윤영혜,백승철,전영석,이광호 경상대학교 유전공학연구소 1997 遺傳工學硏究所報 Vol.16 No.-

In this study, a vehicle vector using cryptic plasmids was constructed for gene transfer in Helicobacter pylori. pHP51(3.9 kb) and pHP489(1.2 kb) were selected for constructing vectors from cryptic plasmid of H. pylori isolates in Korea. The HindⅢ-digestedDNA fragment(1.2kb) of pHP489 and 1.6kb DNA fragment of pHP51 were ligated with a kanamycin resistance gene(aph3'-Ⅲ) from C. jejuni to produce the recombinant plasmids pHP489K and pHP51K, respectively. Transformation frequency of pHP51K by electroporation was low. But pHP489K could be effectively transformed into various H. pylori strains. In order to design an intermdiate vehicle vector for gene transfer into H. pylori, pBlueHP489K was prepared by recloning pHP489K DNA into pBluescript and pTZ19R vector. This vector permitted the DNA fragment containing pHP489 sequence, aph3'-Ⅲ, and cloned DNA to be cut and self-ligated in the SacⅠ site after cloning. ureA and ureB gene were inserted into pBlueHP489K, resulting in pBlueHP489K/AB. The DNA fragment containing pHP489, kanamycin resistance gene(aph3'-Ⅲ), and urease structural gene was cut away from pBlueHP489K/AB and self-ligated to generate pBlueHP489K/AB. pBlueHP489K/AB made urease-negative H. pylori strains restore their urease activity. By this experiment, pBlueHP489K was confirmed to be the vehicle system for transferring H. pylori genes.

Clinical Outcome of Endoscopic Submucosal Dissection for Papillary Type Early Gastric Cancer: A Multicenter Study

( Hyun-deok Shin ),( Ki Bae Bang ),( Sun Hyung Kang ),( Hee Seok Moon ),( Jae Kyu Sung ),( Hyun Yong Jeong ),( Dong Kyu Lee ),( Ki Bae Kim ),( Sun Moon Kim ),( Seung Woo Lee ),( Dong Soo Lee ),( Young 대한소화기기능성질환·운동학회 2024 Gut and Liver Vol.18 No.3

Background/Aims: Papillary adenocarcinoma is classified to differentiated-type gastric cancer and is indicated for endoscopic submucosal dissection. However, due to its rare nature, there are limited studies on it. The purpose of this study was to determine the outcome of endoscopic submucosal dissection in patients with papillary-type early gastric cancer and to find the risk factors of lymph node metastasis. Methods: Patients diagnosed with papillary-type early gastric cancer at eight medical centers, who underwent endoscopic submucosal dissection or surgical treatment, were retrospectively reviewed. The clinical results and long-term outcomes of post-endoscopic submucosal dissection were evaluated, and the risk factors of lymph node metastasis in the surgery group were analyzed. Results: One-hundred and seventy-six patients with papillary-type early gastric cancer were enrolled: 44.9% (n=79) in the surgery group and 55.1% (n=97) in the endoscopic submucosal dissection group. As a result of endoscopic submucosal dissection, the en bloc resection and curative resection rates were 91.8% and 86.6%, respectively. The procedure-related complication rate was 4.1%, and local recurrence occurred in 3.1% of patients. Submucosal invasion (odds ratio, 3.735; 95% confidence interval, 1.026 to 12.177; p=0.047) and lymphovascular invasion (odds ratio, 7.636; 95% confidence interval, 1.730 to 22.857; p=0.004) were the risk factors of lymph node metastasis in papillary-type early gastric cancer patients. Conclusions: The clinical results of endoscopic submucosal dissection in papillary-type early gastric cancer were relatively favorable, and endoscopic submucosal dissection is considered safe if appropriate indications are confirmed by considering the risk of lymph node metastasis. (Gut Liver 2024;18:426-433)

The analysis of Impacts of factor prices on the production costs of the Korean plywood industry

( Hyun Deok Seok ) 한국농촌경제연구원 1991 Journal of Rural Development Vol.14 No.2

The Test of Technology change, Factor substitution and Production structure adjustment of the Korean plywood Industry

( Hyun Deok Seok ) 한국농촌경제연구원 1994 Journal of Rural Development Vol.17 No.2

Vision of Forestry And Its Assignment

( Hyun Deok Seok ),( Woo Whan Jang ) 한국농촌경제연구원 2000 Journal of Rural Development Vol.23 No.1

This study tries to set a new vision of forestry which can satisfy a sustainable development of forestry of the 21st century, and also discusses the assignments of forestry for realizing the new vision of forestry. The new vision for the 21st century is established as the construction of a forestry country for the affluent life of the people, Under this catch phrase, three main concepts are included the creation and conservation of sustainable forest ecosystems. forestry and its related industries raised as high technology industries, providing various forest services for abundant people`s lives. The results of this study can be used as basic information for directing a long-term forest policy because this study was conducted based on the changes of the environments surrounding forests in the 21st century.

An application of dynamo simulation model for the experimental forest of seoul national university

( Hyun Deok Seok ) 한국농촌경제연구원 1993 Journal of Rural Development Vol.16 No.2

Long-Term Prognosis for Chronic Hepatitis C: Clinical Follow-Up after Achieving and Non-Achieving Sustained Virologic Response with Peginterferon Plus Ribavirin Combination Therapy

( Deok Yeong Kim ),( Jae Ho Park ),( Myung Hee Kim ),( Min Seong Kim ),( Min Kyung Back ),( Byung Seok Lee ),( Eaum Seok Lee ),( Hyuk Soo Eun ),( Jong Seok Joo ),( Woo Sun Rou ),( Seok Hyun Kim ) 대한간학회 2018 춘·추계 학술대회 (KASL) Vol.2018 No.1

Aims: Peg-interferon and ribavirin combination therapy was once the treatment standard for patients with chronic hepatitis C and is an option that is still used today. Its ultimate goal is to achieve a sustained viral response (SVR). Several studies have shown about 42 to 82% SVR with less than 1% relapse rate. However, there are not many cases of SVR of HCV in Korea, and also there is no definite study on SVR maintenance and observation period. Aim of this study was to evaluate the achievement rate and the prognosis of patients with achievement of SVR or not during the period of 5 years for peg-interferon and ribavirin combination therapy. Methods: 94 patients successfully treated with peg-interferon and ribavirin combination therapy Patients with HCV genotype 1 (34 patients, 36.2%) at a constant dose received treatment for 48 weeks, whereas non-1 genotype patient (60 patients, 63.8%) received treatment for 24 weeks. The ratio of each achievement and non-achievement of SVR and the incidence rate of liver cirrhosis as well as HCC for each patients during 5- year follow-up periods were evaluated. Results: Among the whole patients, 86 patients (86/94, 80.8%) achieved SVR. However, relapse of HCV RNA occurred in 4 patients (4/86, 4.7%), including two patients with persistent viremia (2/86, 2.3%). The SVR rates of genotype 1 and non-1 genotype were 70.6% (24/34) and 91.7% (55/60), respectively. All of the 8 patients (8/94, 8.5%) who did not achieve SVR had persistent viremia and 7 patients (7/8, 87.5%) were genotype 1 and rest of the patients were genotype IIa. Six patients (6/8. 75%) with genotype 1 progressed to cirrhosis and four of them (4/8, 50%) progressed to HCC. Conclusions: Our results suggest that HCV patients who did not reached SVR, have a high risk for liver cirrhosis or HCC. However, although there are not many cases, our study showed that the risk of liver cirrhosis or HCC is still present in case of non-genotype I, even if SVR is reached. Therefore, longterm outpatient follow-up is recommended for patients chronic hepatitis C, and appropriate treatment and management are required for relapse.