고온욕 후 저온욕이 백서 고환의 정자형성에 미치는 영향

이재규,박광성 大韓泌尿器科學會 2001 Korean Journal of Urology Vol.42 No.7

Circuit Weight Training이 여윈 여고생의 혈청 항산화 작용에 미치는 영향

이재규,한재웅 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.4

The purpose of this study was to determine the effects of Circuit Weight Training(CWT) serum antioxidant activity in lean high school girls. The subjects were 10 lean highschool girls(BMI<19㎏/㎡). They were to perform the Circuit Weight Training with 40~55% intensity of 1RM, for 50 mins/day, 3 times/week during 12 weeks, Before and after training 10 ㎖ blood was extracted from the antecubital vein of each subject for the purpose of analyzing its effects on serum antioxidant activity. The conclusion of this study is as follows: 1. In serum antioxidant activity profile after 12-week Circuit Weight Training was increased significantly in H₂ O₂ OH, MDA. 2. In serum antioxidant activity profile after 12-week Circuit Weight Training was decreased significantly in Uric acid.

2元系反應擴散における異相界面移動に關する 界面反應と局所平衡

李贊揆,尹在弘,下崎敏唯,大西正已 창원대학교 공작기계기술연구센터 1999 연구업적집 Vol.1 No.1

A moving phase boundary under the influence of binary reaction diffusion has been represented by the following flux equation; (Ji)αβ- (Ji)βα =-[(Ci)αβ-(Ci)βα]υ. If Ji is identical with the flux defined by Fick's first law, the boundary never moves. Other types except the Fick's flux, i.e., the fluxes relative to the phase boundary are introduced. Interfacial reaction and a local equilibrium state as non-equilibrium phenomena are discussed from the stand point of the flux balance at the phase boundary, Usually, interfacial reaction causes the boundary migration controlled by diffusion. The migration depends on the magnitude of a free energy difference developed at the boundary. As a special case the boundary moves under the existence of a local equilibrium state at the boundary without the interfacial reaction. The movement at the state arises from the Kirkendall effect.

포도당 섭취와 운동이 인슐린과 글루카곤 호르몬에 미치는 영향

이재규,고기준,박정근 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.2

The purpose of this study in to find out how oral injection glucose effect blood-glucose and hormone. To conduct the study seven healthy male students were chosen as subject, when each subject oral injected glucose and non-injected exercise of 30minutes with 60%HRmax the comparative analysis of the progressive change in their blood-glucose and hormone is as follows: 1) When oral injected glucose and non-injected significantly of blood-glucose did not present, as compared pre-exercise with post-exercise and recovery 30minutes change presented significantly. 2) When oral injected glucose and non-injected significantly of blood-insulin did not present, as compared pre-exercise with post-exercise and recovery 30minutes change presented significantly. 3) When oral injected glucose and non-injected significantly of blood-glucagon presented as compared pre-exercise with post-exercise and recovery 30minutes change presented significantly. Therefore when oral injected glucose blood-glucose and insulin did not present change, blood-glucagon presented many change.

Consideration of Diluents Selection and Input Amounts of the Hunter Process for Tantalum Production

Jae‑Jin Sim,Sang‑Hoon Choi,Yong‑Kwan Lee,Sung Gue Heo,Taek‑Soo Kim,Seok‑Jun Seo,Kyoung‑Tae Park 대한금속·재료학회 2021 METALS AND MATERIALS International Vol.27 No.7

Tantalum (Ta) is a heavy refractory metal with an atomic weight of 180.95 g/mol, a density of 16.6 g/cm3, and a high meltingpoint of 3017 °C. With its refractory characteristics, it shows excellent chemical and physical stability as well as corrosionand heat resistance at elevated temperatures. The demand for Ta metal and related compounds is increasing with the expansionof the electronics and chemical industries. The Hunter process was proven to be effective in producing Ta powder in1953. Hunter proposed a method in which potassium heptafluorotantalate (K2TaF7) was reduced by sodium (Na). Thus far,this process has been the primary commercial method to produce Ta powder. In this study, quantitative differences wereanalyzed for diluent selection. Additionally, consideration was given to changes in the caloric value depending on the inputamount of diluents. Finally, the optimum material input and the properties of the prepared Ta were analyzed. Stoichiometricratios of K2TaF7(1 mol), NaCl (6.2–6.7 mol), Na (5–7 mol) were weighed, to perform a metallothermic reduction reaction. After the reaction, the tantalum powder was recovered and the flush process was carried out. After that, it was dried in avacuum atmosphere. Physical properties such as oxygen concentration, PSA, ICP-OES, and XRD of powder were conductedto evaluate the characteristics of Ta powder that was finally manufactured.

신장에 발생한 섬유육종 1례

이재규,손경민,권동득,오봉렬,류수방,박양일,최찬 大韓泌尿器科學會 2001 Korean Journal of Urology Vol.42 No.7

2×2 교차설계에 의한 생물학적 동등성 시험에서 결측치가 있을 때의 통계적 해석 방법

박상규,이재영,최성업,윤미경,이재휘,최영욱 한국약제학회 2004 Journal of Pharmaceutical Investigation Vol.34 No.5

Statistical interpretations in a bioequivalence trial are considered and studied when the missing observations occurred in 2 × 2 crossover experiment. Patel (1985) suggested the approximate test procedures for carryover effect and drug effect in 2 × 2 crossover design when some of data are missing in the second period. A modified Patel method is newly pro-posed to the bioequivalence trial and it is compared with the current method through the simulation study.

Circuit Weight Training이 비만 여고생의 신체조성 및 혈청지질에 미치는 영향

한재웅,고기준,이재규 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.2

The purpose of this study was to determine the effects of Circuit Weight Training (CWT) on body composition and serum lipids in obese high school girls. The subjects were 11 obese highschool girls(BMI≥27㎏/㎡). They were to perform the Circuit Weight Training with 40~55% intensity of 1RM, for 50 mins/day, 3 times/week during 12 weeks. Before and after training, 10 ml blood was extracted from the antecubital vein of each subject for the purpose of analyzing its effects on serum lipids. The conclusion of this study is as follows : 1. In body composition and anthropometry profile after 12-week Circuit Weight Training was decreased significantly in %fat, BMI, body weight but LBM had no statistical signification. 2. 1. In serum lipid profile after 12-week Circuit Weight Training was increased significantly in TC, HDL - C and decreased significantly in PL but LDL - C had no statistical signification.

운동시간별 단기간 수영운동이 흰쥐의 혈청지질 성분에 미치는 영향

고기준,이재규 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.2

The purpose of this study was to evaluate the effects of short-term swimming exercise on response of serum lipid components of cholesterol diet rats. Twenty-five male SD rats(6 weeks old) were randomly divided into control group and 4 swimming groups after hyperlipidemia induction for 4 weeks 1% cholesterol diet, and then swimming groups were divided into 10 min. loaded swimming group, 30 min. loaded swimming group and 60 min. loaded swimming group by swimming duration. The swimming period of swimming groups were 7 days. The swimming group rats among swimming groups swam a lead weight equivalent to 5% of body weight attached to the base of the tail. Analytical items were serum lipid components (total cholesterol, triglyceride, phospholipid, HDL-C, LDL-C, TC/HDL-C). The conclusions obtained from this study were as follows; 1. In TC, 60SG, 10SG and 30SG was significantly lower than control group(P<.05). 2. In TG, 60SG and 30SG was significantly lower than control group(P<.05). 3. In PL, 60GS and 10SG were significantly lower than control group(P<.05), and in HDL-C, 60SG were significantly higher than control group(P<.05). 4. In LDL-C and TC/HDL-C, all swimming exercise group was significantly lower than control group(P<.05)

중량물 운반시 잡기유형과 부하단계에 따른 생리학적 연구

윤양진,이훈식,윤길환,정미라,이재규,이중숙,서국웅 釜山大學校 附設 體育科學硏究所 1999 體育科學硏究所 論文集 Vol.15 No.-

The purpose of this study was to examine physiological changes of the body according to various weight loads and the holding during carrying object. The experiments were conducted with utilizing physiological analyses for five male and five female adults as subjects. The results were as followed. 1. Any significant difference was not shown in heart rate, ventilation and amount of oxygen uptake of male subjects in the case of no load and 5kg. And also no significant difference was shown in expiratory exchange ratio of male subjects of no load, 5kg and 10kg, but in other measure items and other stages of weight was shown. 2. Significant differences were shown in heart rate, ventilation, defluxion of carbon dioxide, oxygen uptake per body weights, respiratory exchange rate, respiration rate and all other measure items of female subjects in all stages of load. 3. In the MMH job, there was no influence on male subjects up to 5kg loads, but there was an significant difference in male subjects in load walking from 5kg. It shows that even in 5kg weight MMH work, female subject's expiratory function was influenced. 4. 10kg load was the limit weight of female subjects and 15kg was of male subjects when they walked on treadmills with 4km/h velocity for 3 minutes, holding loads in the right and vertical types.