• 한국가스학회지
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• 제24권1호
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• pp.49-55
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• 2020

산업용 혹은 발전용 가스터빈에 사용되는 이중 콘형 예혼합 연소기의 다단 연소 특성을 이해하기 위하여 실험적연구를 수행하였다. 이를 위하여 기존에 모두 경사면에 공급되는 연료를 콘부분으로 일부 할애하는 방식으로 다단연소 방식을 구성하였으며 콘에서 분사되는 연료공급은 축방향과 콘 경사면 방향으로 하였다. 다단연소 연소특성을 이해하기 위하여 콘에서의 연료 분사 방향과 연료 분배율 변화에 대한 NOx와 CO의 배출 농도 그리고 벽면 온도분포를 측정하였다. 그 결과 총 연료에 대한 콘으로의 분배율이 3%인 경우 콘에서의 연료 분사방향에 관계없이 노즐내의 예혼합 영역에서 연료가 공기와 균일하게 혼합됨으로서 연소영역의 고온점 감소에 의하여 NOx 배출 농도가 감소된다. 그러나 콘에서 축방향으로 분사되는 연료분배율이 8%로 증가하는 경우 노즐 내부 예혼합 영역으로의 화염 역화로 인하여 NOx의 배출농도가 오히려 증가하게 된다.

• 한국식품영양과학회지
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• 제42권7호
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• pp.1054-1064
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• 2013

폐경을 전후한 중년 여성(45~60세) 745명을 대상으로 식이보충제 섭취 수준에 따라 식습관, 갱년기 증상 및 일반적 건강 특성에 차이가 있는지 살펴보았다. 식이보충제 섭취 수준은 '전혀 섭취하지 않음(None)', '한 가지를 섭취함(Single)', '두 가지 이상을 섭취함(Multi)'으로 구분하였다. 전체 대상자 중 None, Single, Multi에 속하는 비율은 각각 33.56, 33.29, 33.15%로 나타났다. 식이보충제 사용자(Single 및 Multi)는 비사용자(None)에 비하여 식이보충제에 대한 관심이 월등히 높았으며, 식이보충제가 건강증진과 갱년기증상을 완화시킨다는 신념이 유의하게 높았다(P<0.0001). 주관적인 건강상태는 Multi가 None에 비하여 유의하게 낮게 나타났다(P<0.05). 식습관(20 문항)에 대한 요인분석 결과 '식사의 규칙성', '식사의 다양성', '건강에 해로운 식품의 절제'의 세 요인이 추출되었다. 식이보충제의 섭취수준이 증가할수록 '식사의 다양성'도 상승하였으며 Multi는 None에 비하여 유의하게 높게 나타났다(P<0.05). 갱년기 증상 25 문항으로부터 네 개의 요인(심리적, 신체적, 정신신체적, 홍조)이 추출되었다. 정신신체적 증상 및 홍조는 식이보충제 이용자가 비이용자에 비하여 유의하게 높았으며(P<0.001), 심리적 증상은 Single이 None에 비하여 높았다. 식이보충제의 섭취 수준과 폐경 단계는 유의한 관련성이 존재하였으며(P<0.01) Single이 폐경 중과 폐경 후 여성의 최상위 비율을 차지하였다. 종합적으로 볼 때, 폐경을 전후한 중년 여성이 인지하는 갱년기 증상이 심할수록 식사의 다양성을 유지하려 하고 식이보충제에 대한 의존도도 클 것으로 여겨진다. 본 연구는 중년 여성의 식이보충제 이용은 이들이 경험하는 갱년기 증상과 식습관과 관련성이 높음을 입증한 연구로서, 중년 여성의 건강증진을 위한 정책 수립 및 식생활 교육을 위한 기초 자료로 활용될 수 있을 것으로 사료된다.

• 대한한방부인과학회지
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• 제32권4호
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• pp.132-143
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• 2019

Objectives: The purpose of this study is to provide basic information on Korean medical research and treatment through analysis of breast cancer patients, who visited ${\bigcirc}{\bigcirc}$ university Korean medicine hospital. Methods: To analyze characteristics of breast cancer patients who visited korean medicine hospital, we searched medical records from January 1, 2016 to May 13, 2019, and 86 breast cancer patients were analyzed. Results: 1. The general characteristics of the subjects are as follows. The average age was $47.65{\pm}9.62years$ and 40's was the most (46.51%). The average height was $159.78{\pm}4.91cm$ and the average weight was $57.29{\pm}9.34kg$. The average body mass index (BMI) of the patients was $22.40{\pm}3.50kg/m^2$. 2. The stage distribution record indicated stage０ (9.72%), stageI (31.94%), stageII (34.72%), stageIII (20.83%) and stageIV (2.78%). 14 patients with unknown stage were excluded. 3. Before coming to the korean medicine hospital, of the 86 patients, 72 (83.72%) patients received surgical therapy, 55 (63.95%) patients received chemotherapy and 44 (51.16%) patients received radiotherapy. 11 (12.79%) patients chose oriental medicine as their primary treatment option. 4. The mean duration from diagnosis to hospital visit was $13.87{\pm}15.53months$. Among the total 86 patients, 46 (53.49%) patients visited for symptom relief during the follow-up period. 5. The most common symptom was general weakness in 29 (33.72%) patients, followed by hot flash, myalgia, insomnia, digestion disorder, numbness, edema, arthralgia, operation site pain, cold sensation and mastalgia. 6. Among 86 patients, 55 (63.95%) patients received acupuncture and moxibustion together. The most prescribed herbal medicine to subjects was Sibjeondaebo-tang-gamibang and Cheonhye-dan (25%). Conclusions: These results could be helpful to provide basic data on the Korean medical approach of breast cancer patients.

• 대한한방부인과학회지
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• 제20권3호
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• pp.200-212
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• 2007

Purpose: To find objective validity of minimal acupuncture using a modified guide tube as a method to verify the effect of acupuncture. Methods: Subjects of this study were participants of a randomized clinical trial which was practiced to verify the effect of acupuncture on postmenopausal hot flash. There were 2 arms of treatment, one's for active acupuncture group(AG) with manipulation and De qi, the other's for minimal acupuncture group(MG) using a modified guide tube which was designed to give minimal stimulation to the patient. After 8 weeks' treatment followed by 4 weeks' observation, participants were asked to fill in self-report forms on their education, previous experiences of acupuncture, original idea on the efficacy of acupuncture and recognition of blinding. Results: 19 participants of 26 in AG and 19 of 26 in MG completed the self-report form. There was no difference between AG and MG in their education(p=0.5976, Fisher exact test) and previous experiences of acupuncture(p=0.9999, Fisher exact test). In their original ideas on the efficacy of acupuncture, most of AG and MG respondents have been thought that acupuncture is very effective or quite effective, and there was no difference between 2 groups(p=0.5065). 16 of 19 in AG and 14 of 19 in MG believed that they underwent more effective way, there was no statistical difference between 2 groups(p=0.6928, Fisher exact test). Participants believed in undergoing more effective way not because they recognized treatment method, but they were satisfied with the effectiveness of treatment retrospectively. Conclusion: As the result of this study, these authors suggest that minimal acupuncture using a modified guide tube is acceptable as a method to verify the effect of acupuncture in acupuncture-familiar Korean culture. Also further studies on the stimulation-specific effect of minimal acupuncture are demanded.

• 대한한방부인과학회지
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• 제27권3호
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• pp.66-78
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• 2014

Objectives: The purpose of this study is to investigate the relationship between vasomotor symptoms with upper-lower body temperature differences, and to identify Kidney Deficiency pattern (腎虛證) in menopausal women. Methods: 51 women who visited Kangnam Kyung-Hee Oriental Hospital from July to December, 2013 were analyzed. The experimental group consisted of 30 patients reported with vasomotor symptoms (Vasomotor symptom group, VG), while the control group consisted of 21 patients without vasomotor symptoms (Control group, CG). According to their chief complaints, VG was further divided into VHG (vasomotor-hot flash group) and VCG (vasomotor-cold hypersensitivity group). The temperature differences between upper and lower body part (CV17-CV4), proximal and distal extremity part (LU4-HT8, ST32-LR3) were checked. All patients reported other complaints such as headache, sweating, anxiety, dyspepsia, leukorrhea, which belong to Kidney Yang Deficiency pattern (腎陽虛證) or Kidney Yin Deficiency pattern (腎陰虛證). The relationship between vasomotor symptom and repetition rate of additional complaints were analyzed. Results: Statistical analysis showed that lower abdomen temperature of experimental group was lower than the control group. Temperature differences of upper and lower body (CV17-CV4) was significantly larger in vasomotor symptom group. VHG had more symptoms of sweating, chest discomfort, constipation, which belong to Kidney Yang Deficiency pattern group. VCG had more symptoms of leukorrhea, diarrhea, and dyspepsia, which belong to Kidney Yin Deficiency pattern group. Conclusions: Climacteric women who suffered from vasomotor symptoms showed lower temperature tendency in [CV4], larger temperature differences in [CV17-CV4] compared to the control group. Among them, VHG showed more symptoms of Kidney Yin Deficiency pattern, whereas VCG showed more symptoms of Kidney Yang Deficiency pattern.