비용ㆍ편익 분석을 중심으로 한 중수도 시설의 처리방법별 적정규모선정

노상환,민동기,송영일,박태욱,박주양 한양대학교 환경공학연구소 2000 環境科學論文集 Vol.21 No.-

미래의 안정적인 수자원 확보를 위한 수요관리방안인 중수도 시설 설치 시 발생하는 비용과 편익의 현재가치를 이용하여 처리방식별로 중수도 시설의 경제성 분석을 하였다. 사회적 편익을 고려하였을 경우 중수도 시설규모가 300㎥이상의 1일 처리용량의 경우 경제성이 있는 것으로 나타났다. 그러나 사적편익을 고려하였을 경우에는 사회적 편익에서 고려된 환경비용절감등의 여러 외부 편익이 포함되지 않아 중수도 시설에 의한 편익이 작아지게 된다. 따라서 사적편익만을 고려할 경우에는 대체로 경제성이 있는 중수도 시설의 규모는 사회적 비용을 고려하였을 경우 보다 커진다. Water reuse is a control method of water demand to steadily assure water resources in the future. Economical efficiency of wastewater reuse plants with various treatment processes was studied using the present value of cost-benefit. When social benefits are considered, the capacity of 300㎥/ day was found to be economically effiecient. However, when private benefits are considered, the social benefit of wastewater treatment plant decreases because the private benefits do not include environmental expenses and other benefits which are included in social benefits. Therefore, when the private benefits are only considered, the economically efficient capacity of the wastewater reuse plant will be higher than that considering social expenses.

Hatta No.(MH)와 Enhancement Factor(E)가 고려된 수용 BPA의 오존 산화 모델 적용성 연구

박노석(No Suk Park),김성은(Sung Eun Kim),김정현(Jeong Hyun Kim),배철호(Chul Ho Bea),민진희(Jin Hui Min),안효원(Hyo Won Ahn) 大韓環境工學會 2004 대한환경공학회지 Vol.26 No.12

일 지역 농업인의 근력강화운동이 정신사회 및 신체적 건강수준에 미치는 영향

정민예,양노열,유인규,고상백,이경숙,김경란,김효철 大韓産業醫學會 2008 대한직업환경의학회지 Vol.20 No.4

목적 농업인을 대상으로 근골격계질환의 예방과 관리를 위한 근력강화운동을 실시하여 심리상태와 신체능력에 미치는 효과를 밝힘으로써 농작업과 관련된 향후 치료프로그램의 기초자료를 제공하고자 하였다 방법 규칙적인 운동프로그램의 참여 경험이 없는 농작업 종사자 28명을 대상으로 8주간 주 3회 근력강화운동을 실시하여 4주 이상 규칙적으로 참여한 대상자의 정신사회적 수준(자아존중감 사회심리적 스트레스) 신체적 수준(장악력 민첩성 동 정적 균형능력 근지구력) 요통 수준의 변화를 측정하였다 결과 근력강화운동에 참여한 대상자들의 자아존중감은 운동전에 비하여 유의하게 향상되었고 사회 심리적 스트레스는 유의하게 감소하였다 장악력 민첩성 동 정적균형능력은 운동 후 모두 유의하게 향상되었으며 요통 수준 또한 유의하게 감소하였다 결론 농업인에게 근력강화운동의 적용은 심리적인 안정을 주고 신체능력을 향상시켜 근골격계질환을 예방하고 관리하는데 적합한 치료프로그램으로 사용될 수 있으며 요통 수준을 감소시키는데 유용한 프로그램이었다. Objectives To evaluate both the psychosocial and physical effects of muscle strengthening exercise on farmers and in so doing evaluate their effect on musculoskeletal disorders in farmers. Methods 28 subjects participated in our muscle strengthening exercise program. Mean age of subjects was 63±13 years. The exercise program was performed 3 times a week during the 8 week studys period Before and after training various measurements were made self esteem scale (SES), psychosocial well being index short form (PWI SF), static and dynamic balance ability grip strength arm curl, time up and go (TUG), functional reach, and oswestry disability index. Results The muscle strengthening exercise program increased the self esteem grip strength and static and dynamic balance of subjects, while psychosocial stress and low back pain levels were decreased significantly (P<0.05) Conclusions The muscle strengthening exercise improved psychosocial and physical status of test subjects. Thus exercise may be an effective strategy for enhancing the psychosocial and physical health of farmers.

혈액 투석 환자에서 중심정맥 협착에 대한 스텐트 삽입술 : Wallstent Placement

임대승,노상필,이유선,정승현,김보영,이정우,강정아,김정희,이민수,정준용,최시완,정진옥,성인환,이강욱,신영태 충남대학교 의과대학 의학연구소 2002 충남의대잡지 Vol.29 No.1

Stenosis of central vein is a common complication arising after percutaneous subclavian vein catheter insertion performed for temporary vascular access in chronic renal failure patients undergoing hemodialysis. There are several treatment methods for the condition like percutaneous angioplasty(PTA), stent insertion, and surgery, but recent trend is toward PTA and stents. Among the patients diagnosed with chronic renal failure from March 1993 to May 2002 and undergoing hemodialysis through AV fistula, the 14 Patients in whom central vein stenosis arose were selected for the study. A total of 28 percutaneous interventions(5 PTA and 23 stent placement) were performed, and restenosis rate and the time taken till the restenosis in de novo lesions and instant lesions were compared. All 28 cases were operated successfully. The 14 cases that received both anigioplasty and stent placement initially. (de novo lesion : 14 cases), Among the 10 cases with de novo lesion that followed up more than 1 year, 3 cases are currently undergoing hemodialysis without restenosis, and the remaining 7 cases have recurred stenosis with the mean time to restenosis of 10.9 months. In the 7 cases in whom stenosis recurred, 11 interventions were done(instent lesion: 11 cases). 4 of these were using only ballon angioplasty with 100% restenosis rate and the mean time of 3 months until restenosis. The remaining 7 cases were using both balloon angioplasty and stent placement, also with 100% restenosis rate but with the mean time of 12 months until restenosis, which was later than the group receiving only balloon angioplasty. In treating the patients with central vein stenosis, stent placement seems to be more advantageous over PTA in terms of restenosis rate and the mean duration of patency. In the case of instent lesion, inserting the stent for the second time after stenosis recurred lengthened the duration of patency compared to performing balloon angioplasty alone.

초음속 유동장치의 설계 및 성능시험

박종호,이성노,이정민,이택상,신완순 충남대학교 산업기술연구소 1999 산업기술연구논문집 Vol.14 No.2

Theoretical analysis, design and evaluation of a supersonic cold-flow system were conducted. It is designed to study of jet-vane for Thust Vector Control system, but a design process is similar general that of supersonic cold-flow system. The nozzle for this system was designed same exit Mach number as that of real rocket motor, because the jet boundary of designed nozzle approximated to real jet boundary very closely. The working gas is air exit Mach No. is 2.88, and nozzle chamber volume is 1.5ℓ. From the result, proper test time is about 0.3 seconds, low pressure chamber pressure and the measured axial thrust are appeared to 83% and 83.7% of the theoretical data respectively. It is due to pressure loss in sudden divergent-convergent section.

프로 축구팀 이미지가 기업 이미지에 미치는 영향

김장환,이성노,김민지,박진기 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6

This Study has examined the influences of the images of the pro soccer teams on the images of the businesses by the method of covariance structure analysis. That is, the structural model of the influences of the images of the pro soccer teams and then the causal relationship of each variable has been analyzed quantitatively. For this purpose, the general people seeing the soccer games in the soccer grounds have been the population, and 280 sampling objects have been selected out of them by simple random sampling. Out of the 250(89.3%) collected questionnaires, 213(76.1%) questionnaires, excluding those questionnaires are those whose answers are insincere or some parts of which are missing, are as valid samples. As the measuring instrument for this study, the measures of Aaker (1997) are used, and the questionnaires used by Yu, Taeyong(1990) are revised and restructured to be fit for the purpose of the study. The method of the statistical analysis used to find out the influences of the pro soccer teams on the images of businesses are the covariance structure analysis. The findings concerning the structural models obtained on the basis of the methods of the study and the analysis of the data are as follows: The analysis of the images of the pro soccer teams on the images of businesses show that the factor of credibility influences the intellect, vividness, inhumanity and solidity, the factor of certainty influences vividness, solidity, the factor of advancedness influences inhumanity, wildness. On the other hand, the factor of interestingness doesn't influences the intellect, vividness, inhumanity, wildness, and solidity.

소득작물 전후작지 적응 극단기성 벼 ‘중모 1032’

손영보,이종희,조준현,이지윤,오성환,송유천,박동수,박노봉,김상열,여운상,남민희,권영업 忠北大學校 農業科學硏究所 2015 農業科學硏究 Vol.31 No.2

개에서 이중 결찰법을 통한 동맥관 개존증의 완치 예

윤헌영,정순욱,박희명,박철,정만복,김준영,한현정,황민,노병국,박상혁,장하영,박정윤 한국임상수의학회 2004 한국임상수의학회지 Vol.21 No.1

A ten months old, female Yorkshire terrier weighing 2.88 kg referred to veterinary teaching hospital of college of veterinary medicine, Konkuk University because of syncope, cough and dyspnea. First hematological and serum chemical test revealed thrombocytopenia, mild anemia, and increase of concentration of ALP (195 U/L). On 57 days later, second hematological and serum chemical test revealed polycythemia, increase of concentration of ALP (211 U/L), and Tchol (387 mg/dl). Right atrium enlargement, main pulmonary artery bulge and cardiomegaly (VHS = 11.5) were observed in radiographic findings. Ultrasonographic images showed both right and left ventricular dilation and turbulent flow between the descending aorta and the main pulmonary artery in color Doppler imaging. ECG showed left ventricular enlargement, SA block, and electrical alternant. Thoracotomy was performed through left fourth intercostal incision under isoflurane anesthesia. Patent ductus arteriosus was double ligated with 1-0 silk. Cough and dyspnea disappeared on 5 days after operation. Turbulent flow was not found in color doppler imaging of ultrasonography on 10 days after operation. Ten months later after the operation, syncope could not exist any more.

Development of SNP Markers to Distinguish Various Watermelon Traits and Validation Using Fluidigm Genotyping Assay

Sang-Min Yeo(Sang-Min Yeo),Jeong-Eui Hong(Jeong-Eui Hong),Md Abdur Rahim(Md Abdur Rahim ),Saleh Ahmed Shahriar(Saleh Ahmed Shahriar ),Phillip Choe(Phillip Choe),Sun-Kyun Jung(Sun-Kyun Jung),Ill-Sup No 한국육종학회 2023 Plant Breeding and Biotechnology Vol.11 No.2

Watermelon [Citrullus lanatus (Thunb.) Matsum and Nakai] is one of the economically most important fruit crops of the Cucurbitaceae family. Among different watermelon traits, disease resistance and fruit quality are the important traits for growers and consumers. The single nucleotide polymorphism (SNP) markers similar to those traits can potentially and cost-effectively distinguish the genetic variations among these traits. Consequently, we developed 33 SNP makers linked to different watermelon traits associated with fruit quality and disease resistance, and validated in the genetic resources of watermelon and F1 breeding lines using ‘Fluidigm SNP Genotyping’ assay. Most of the SNP markers distinguished the alleles into three different types such as reference allele, alternative allele and heterozygous from watermelon genotypes for various traits. The SNP markers ‘ZymFL-T81P’ (ZYMVresistance), ‘FON1-U161’ and ‘FON1-S075’ (Fusarium wilt-resistance), ‘Pmr21-Cla831’ (PM-resistance), and ‘ClGBS-J168’ and ‘GBS-GC230’ (GSB-resistance) can successfully differentiate resistant (R), susceptible (S) and heterozygous watermelon genotypes. Similarly, the SNP marker associated with sugar content, citrulline content, arginine content, rind hardness, flesh firmness, fruit shape, rind strip pattern of watermelon fruit and seed coat colour can successfully distinguished the watermelon genetic resources and F1 breeding lines as reference allele (A) type, alternative allele (B) type and heterozygous (H). These SNP markers could be utilized for marker assisted selection as well as screening of a large number of watermelon germplasm for fruit quality and disease resistance. However, further validation like artificial inoculation of pathogens for the traits related to disease resistance is required in watermelon crops.

Characterization of Humanized Antibody Produced by Apoptosis-Resistant CHO Cells under Sodium Butyrate-Induced Condition

( No Soo Kim ),( Kern Hee Chang ),( Bo Sup Chung ),( Sung Hyun Kim ),( Jung Hoe Kim ),( Gyun Min Lee ) 한국미생물생명공학회 2003 Journal of microbiology and biotechnology Vol.13 No.6