SM25C의 마찰용접에서 용접면에 가공된 홀의 영향에 관한 연구

윤병수,홍일표,민택기,김진건 忠南大學校 産業技術硏究所 1999 산업기술연구논문집 Vol.14 No.1

This study deals with friction welding of SM25C. One of test material has a hole in the center, but the other is not. Then,same friction welding condition is applied. Friction welding is conducted with varying hole diameter at one material. The results obtained are as follows. 1. When the diamether of machined hole is 4mm, the highest bending strength of friction wleld was 1569MPa which was about 120% of base metal strength. 2. When the diameter of machined hole is 6mm, the highst shear strength of friction weld was 512MPa which was about 115% of base metal strength. 3. The machined hole at one material can be increased in the bending and shear strength.

임신중 요통증

성연상,김상진,박찬용,박순필,도종웅 대한신경외과학회 1988 Journal of Korean neurosurgical society Vol.17 No.6

The authors surveyed one-hundred women whithin 24-36 hours after delivary for the evaluation of low back pain in pregnancy. It showed that 55% of them suffered from low back pain during pregnancy. Low back pains mostly started form 6-9 months of gestational age. Low back pains were tolerable at 84% of them. And low back pains were not aggravated during pregnancy among the 67% of low back pain pregnant women. Leg pains were noted at 34% of low back pain group.

굴껍질에 의한 산성폐수 중화능에 관한 연구

박진식,장성호,문추연,성낙창,김수생 동아대학교 환경문제연구소 1995 硏究報告 Vol.18 No.2

This Study has been carried out to evaluate the neutralization ability of waste oyster shelles. The results of this study are summerized as following ; 1. For reactiontime, neutralization effective were investigate smally but pH variations were investigate largely for 10 minutes reactiontime. 2. pH variations with dosage of oyster shelles were small except pH 2 3. Therefore, waste oyster shelles is able to neutralize for acid wastewater.

활성슬러지법을 이용한 화장품폐수 처리에 관한 연구

박진식,문추연,김동일 경운대학교 산업기술연구소 2001 産業技術硏究論文誌 Vol.3 No.2(B)

In this study, Activated Sludge was operated for treatment of cosmetic wastewater and combined with sewage The results from this study are follows. During the experiments, average COD and BOD concentrations of raw wastewaters were ranged 690∼1,010 ㎎/l, 550 ∼ 880㎎/l respectively, and fluctuated sharply with time. COD removal efficiency was 73.6% at HRT 12hr. It is higher removal efficiency than HRT 4hr 62.6%, HRT 8hr 69.4% when cosmetic wastewater combine with sewage, COD and BOD removal efficiencies were higher than wastewater only, therefore treatment of combined sewage was effective.

소 수정란의 공배양 및 동결이 체외발생에 미치는 영향에 관한 연구

이종진,이명헌,남윤이,이만휘,이봉구,김상근 충남대학교 수의과대학 동물의과학연구소 1996 動物醫科學硏究誌 Vol.4 No.-

The studies on the carried out to investigate the effects of co-culture with cumulus cells and oviduct epithelial cells on the in vitro fertilization and cleavage rate of bovine follicular oocytes, and to determine the optimum thawing temperature and equilibration time of frozen bovine embryos and on survival rate and in vitro developmental rate of bovine embryos. The ovaries were obtained from slaughtered Korean native cows. The follicular oocytes were cultured in TCM-199 medium containing 10 IU/㎖의 PMSG(Sigma, USA), 10 IU/㎖의 hCG, 1 ㎍/㎖의 β-estradiol(Sigma, USA) and 10% FCS(Sigma, USA) for 24-48 hrs in incubator with 5% CO_2 in air at 38.5℃ and then matured oocytes were again cultured for 12-18 hrs with motile capacitated sperm by preincubation of heparin. The bovine embryos following dehydration by cryoprotective agents and a various concentrations of sucrose were directly plunged into liquid nitrogen and thawed in 30℃ water. The results are summarized as followes : 1. The in vitro fertilization and in vitro developmental rates of bovine oocytes co-cultured with cumulus cells in TCM-199 media were 75.0%-76.8% and 17.3%-27.6%, respectively. And in-vitro fertilization rates of cumulus-enclosed oocytes(55.4%) were significantly(p<0.05) higher than cumulus-denuded oocytes(23.1%). 2. The in vitro fertilization and in vitro developmental rates of bovine oocytes co-cultured with 1 ×10^4 cells/㎖, 1 ×10^6 cells/㎖, 1 ×10^8 cells/㎖ and 1 ×10^15 cells/㎖ oviduct epithelial cells in TCM-199 media were 74.5%-77.8% and 15.7%-21.2%, respectively. 3. The in-vitro fertilization and in vitro developmental rates of bovine oocytes co-cultured in TCM-199 media containing PMSG, hCG, PMSG + hCG, PMSG + β-estradiol, hCG + β-estradiol 0 to 40 hrs after insemination were 74.0%-77.4% and 18.9% - 23.1, respectively. 4. The survival rates of bovine embryos thawed after rapid freezing in the media containing various kinds of cryoprotective agents added 0.25M and 0.50M sucrose were 14.7% - 35.1% and 17.6% - 31.6%, respectively. The survival rates of bovine embryos thawed after rapid freezing in the freezing media containing a various concentration of sucrose added 1.5M and 2.0M glycerol, 1.5M and 2.0M DMSO, and 1.5M and 2.0M propanediol were 23.5% -31.4% and 20.6% - 34.1%, respectively. 5. The temperature thawed at 30℃ after rapid freezing of bovine embryos resulted in a significantly higher embryos survival rate than did at 20℃ and 35℃. 6. The equilibration time on the survival rates of bovine embryos was attained after short period of time(2.5-5 min.) in the freezing medium higher than ling period of time(10-20min.).

약식조리시 당의 종류와 당의 양, 조리기기에 따른 물리적 특성 연구

김연진,우순임 서울여자대학교 자연과학연구소 1997 자연과학연구논문집 Vol.9 No.-

This study makes effort to bring a nutritional but quite troublesome traditional food, yaksik, closer to the modern times by studying how different utensils(steaming pots, microwave oven, pressure cooker), types of sugars(black sugar, oligo sugar, and brown+white sugar, honey), amounts of sugar(0.75Cup, 1.00Cup, 1.25Cup) all differ in preference. And using scientific methods to evaluate the physical characteristics of yaksik, the objective is to set a standardized recipe to fit into our modern diet efficiently. Now in our experiments, with different types of sugars, amount of sugar, and cooking utensils, the results on physical characteristics of yaksik were attained by texture, water content, color measurements.

불안정 지지면을 이용한 운동 프로그램이 뇌졸중 환자의 균형에 미치는 효과

이지연,김용수,김진섭,박진현,최윤희,전덕훈,김경 대구대학교 특수교육재활과학연구소 2010 再活科學硏究 Vol.28 No.1

본 연구의 목적은 뇌졸중 환자의 재활을 위하여 불안정 지지면을 이용한 운동 프로그램이 균형 능력과 운동 기능 능력에 미치는 효과를 알아보고자 실시하였다. 불안정 지지면의 이용한 치료는 임상적으로 뇌졸중으로 인한 편마비 환자뿐만 아니라 스포츠 손상 및 노인들의 질환 등 다양한 병인을 가진 환자들의 치료에 이용되고 있다. 대부분의 뇌졸중 환자들은 재활 훈련을 할 수 있는 병원이나 기관에서 치료를 받을 때에 지지면의 차이를 제공함으로써 보다 더 안정한 지지면에서 적응할 수 있는 방법이 요구되고 있다. 하지만, 아직도 불안정 지지면을 이용한 구체화된 치료적 운동 방법과 객관적 평가에 대한 연구가 미비한 실정이다. 이러한 문제점을 해결하기 위하여 최근 뇌졸중 환자의 불안정 지지면과 이론적 근거를 바탕으로 한 운동 프로그램에 대한 연구가 더욱 필요하다. 본 연구에서는 실험군과 대조군이 같은 운동 프로그램을 적용하였을 때, 두 그룹 간에서 나타나는 균형 향상과 운동 기능 향상에 어떠한 효과를 주는지 살펴보고자 하였다. The purpose of this article was to study the effect of the exercise programme that uses the unstable supporting surface to rehabilitate cerebrovascular patients on balance ability and exercise function ability. The therapy is being clinically used for the patients with diverse pathological factors such as hemiplegia caused by CVA, sports injury, and diseases in the elderly. when most patients with CVA are treated in the hospital or institute that can provide rehabilitation training, they need to be given the way to adjust more stable surpporting surface by being provide with various stages of surface. However, the actual therapeutic exercises is still needed and the study for objective assessments wants conducting. To solve these problems, the study of unstable surface exercise programmes based on the evidences recently need to be made for the patients with CVA. in this study, we intend to look into what effects on the balance improvement and the exercise function are different from the experimental group to the control group with the same programme applied to the two groups.

치매노인 부양가족을 위한 교육프로그램 개발연구

김시연,장진경 숙명여자대학교 건강·생활과학연구소 2001 生活科學硏究誌 Vol.16 No.-

This study is to provide the foundmentals of family life education programs to ease burden and difficulties who family members of senile dementia have commonly faced. Many of dementia families participated in the pilot study for the propose to catch their needs and to search for more stable and effective education tools auld programs for them. The necessity of some education program for senile dementia families was in detail varied by sociodemographical variables. The married was much stronger than the single in the need of medical information. For the support technique both less than the forties and the upper school career were higher. Stress Information recorded higher needs in the married people. Spouses and daughters-in-law of dementia sufferers showed much interest in the programs; and the income earners of 2,000,000 to 3,000,000 won showed the same results. In the field of social welfare information, however, daughters of the old demanded much more. The demand level of the programs by characteristics of the old dementia are as follows. The group of less serious patients required higher for medical information. Those who had no regard for dementia took much interest in stress information. There revealed no significant statistics in the large and small physical defects by demdntia. By types, however, less cognitive, emotional and behavior defects revealed higher in medial and stress information. Method of education program were also examined in the study; place was the old age welfare center, the size of participants was six to ten, frequency was six to ten times, time zone was twelve to six p.m, period was one to two hours, teaching was lecture and group discussion. In confusion, this syudy huts described a senile dementia program to ease mental burden, body pain and to help role plays of the family menbers. The program includes four sociodemographical factors of medical, stress, welfare information and support technique. Six times of curricula are to be done by contents of lecture, joint activity, group discussion and care release. Many of proving tests of the program would build up more stable program tools and method.

4-Stage BNR공정을 이용한 하수처리

박진식,문추연 경운대학교 산업기술연구소 2001 産業技術硏究論文誌 Vol.3 No.2(C)

Recently in Korea and developed countries, nitrogen and phophorus removal are the main target to improve effluent qualities, in order to protect discharge basins from eutrofication by N and P. Introduction of an advanced treatment function to existing wastewater treatment systems, which can be removed nitrogen and phophorus as well as BOD, COD and SS, have been required to protect water resources from domestic and industrial wastewaters. This study was undertaken to investigate the organic matter and nutrient removal efficiencies and the operating parameters for treatment of municipal wastewater by using laboratory scale BNR(Biological nutrient removal) process. The average removal efficiencies of BOD and COD were 91.7% and 81.9% respectively. The nutrient removal efficiencies were NH4-N 96.2%, T-N 67.8%, PO4-P 72.2% and T-P 70.7%, respectively.

CO₂ 레이저 및 Interferon을 이용한 후두 유두종의 치료

박구진,하정환,김연기,이원용,김종애 釜算慶南耳鼻咽喉科學會 1994 임상이비인후과 Vol.5 No.2