• 제목/요약/키워드: Added mass

검색결과 932건 처리시간 0.027초

중년여성을 위한 건강정보 프로그램 개발과 건강교육 활용에 관한 연구 (Development of Health Information Program for the Middle Aged Women)

  • 박현애;박영숙;오효숙;김후정
    • 여성건강간호학회지
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    • 제8권2호
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    • pp.165-176
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    • 2002
  • The purpose of the study was to develop a Web site for the middle-aged women and test the usability of the site. Users' need for information were identified via online survey of 189 middle-aged women. It was found that they had various health problems but very few did any health prevention or health promotion activities. A web site for the middle-aged women was developed based on the result of needs assessment. The site includes content on exercise, diet including weight control, osteoporosis, climacteric, aging, breast and cervical cancer. Besides this health information, FAQ on women's health, my health knowledge test, statistics, link to related institutes and web sites, newspaper articles/mass media clips, journal articles, conferences, papers and other educational information were added. The site was developed as a subsystem of the Healthguide(http://healthguide.kihasa.re.kr). As a way of utilizing the homepage, twenty two women aged 40-50 were recruited at a community-based gathering and health promotion education program was conducted. To test the effectiveness of the education, knowledge, attitude and behavior changes of before and after education were compared. There were significant differences of knowledge and behavior in breast cancer, cervical cancer, osteoporosis, menopause and sexual life. It is expected that Web-based women's health information will contribute to women's health promotion and provide an effective learning media for health education.

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Relationship between sensory attributes and volatile compounds of polish dry-cured loin

  • Gorska, Ewa;Nowicka, Katarzyna;Jaworska, Danuta;Przybylski, Wieslaw;Tambor, Krzysztof
    • Asian-Australasian Journal of Animal Sciences
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    • 제30권5호
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    • pp.720-727
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    • 2017
  • Objective: The aim of this work was to determine the relationship between objective sensory descriptors and volatile flavour compound composition of Polish traditional dry-cured loin. Methods: The volatile compounds were investigated by using solid phase microextraction (SPME) and gas chromatography-mass spectrometry (GC-MS). For sensory assessment, the quantitative descriptive analysis (QDA) method was used. Results: A total of 50 volatile compounds were found and assigned to 17 chemical families. Most of the detected volatile compounds derived from smoking, lipid oxidative reactions and seasoning (46.8%, 21.7%, and 18.9%, respectively). The dominant compounds were: aromatic hydrocarbon (toluene); alkanes (hexane, heptane, and 2,2,4-trimethylpentane); aldehyde (hexanal); alcohol (2-furanmethanol); ketone (3-hydroxy-2-butanone); phenol (guaiacol); and terpenes (eucalyptol, cymene, ${\gamma}-terpinen$, and limonene). Correlation analysis showed that some compounds derived from smoking were positively correlated with the intensity of cured meat odour and flavour and negatively with the intensity of dried meat odour and flavour, while terpenes were strongly correlated with odour and flavour of added spices. Conclusion: The analysed dry-cured loins were characterized by specific and unique sensory profile. Odour and flavour of studied loins was mainly determined by volatile compounds originating from smoking, seasoning and lipid oxidation. Obtained results suggest that smoking process is a crucial stage during Polish traditional dry-cured loins production.

제품구성모델을 이용한 쌍동형 레저보트 건조공수 추정 연구 (Study of Shipbuilding Cost Estimation for Catamaran-type Leisure Boats Using Product Configuration Model)

  • 오대균;오우준;이동건
    • 대한기계학회논문집A
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    • 제38권8호
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    • pp.911-916
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    • 2014
  • 레저보트산업은 미래형 고부가가치 산업으로 최근 국내에서는 한국형 고속레저낚시보트에 대한 연구가 수행되었다. 본 논문에서는 고속레저낚시보트의 대량생산을 위한 기초연구로서 제품구성모델 기반의 건조공수 추정 연구를 수행하였다. 이를 위해 레저보트의 건조공정을 분석하고 범용 작업분류체계를 적용하였으며, 업체 설문조사를 통해 계층분석법 기반의 레저보트 건조공수 비례계수를 도출하였다. 또한 실적선의 공수를 기반으로 비례계수를 이용한 개발선 후보들의 정량적인 공수추정을 수행하였으며, 그 결과 실적선 공수 대비 17% 감소된 쌍동형 개발선을 최종 선정할 수 있었다. 이는 개발된 레저보트의 설계가 실제 건조단계에서 가격경쟁력을 갖출 수 있는 양산가능수준의 제품임을 의미한다.

Evaluation of Dietary Multiple Enzyme Preparation (Natuzyme) in Laying Hens

  • Lee, K.W.;Choi, Y.I.;Moon, E.J.;Oh, S.T.;Lee, H.H.;Kang, C.W.;An, B.K.
    • Asian-Australasian Journal of Animal Sciences
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    • 제27권12호
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    • pp.1749-1754
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    • 2014
  • The current experiment was designed to evaluate the efficacy of adding the multi-enzyme mixture (Natuzyme) into layers' diets with different levels of energy and available phosphorus in relation to laying performance, egg qualities, blood cholesterol level, microflora and intestinal viscosity. Two hundred and fifty 43-wk-old Hy-Line commercial layers were divided into five groups with five replicates per group (10 birds per replicate) and fed one of five experimental diets. A corn and soybean meal-based control diet was formulated and used as a control diet. Two experimental control diets were formulated to reduce energy and crude protein contents (rE) or energy, crude protein and phosphorus contents (rEP). In addition, Natuzyme was added into either rE (rE-Natu500) or rEP (rEP-Natu500) diet to reach a concentration of 500 mg per kg of diet. The experiment lasted 8 weeks. There were no significant differences in feed intake, egg production, egg weight, egg qualities such as eggshell color or Haugh unit, total cholesterol, relative organ weights and cecal microflora profiles between any dietary treatments. Natu500 supplementation into the rE diet, but not rEP diet significantly increased egg mass and eggshell qualities such as strength and thickness, but it decreased cecal ammonia concentration and intestinal viscosity in laying hens. In conclusion, the present study shows that adding multiple enzyme preparation could improve performance of laying hens fed energy and protein restricted diets.

탄화공정에 의한 저가 해조류의 탄화 유기용액(해초액) 제조공정에 관한 연구 (Study on the Manufacturing Process of Low Cost Seaweed's Carbonized Organic Solution(Seaweed vinegar liquid) by Carbonization Process)

  • 류성렬
    • 한국응용과학기술학회지
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    • 제30권1호
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    • pp.183-196
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    • 2013
  • 본 연구는 여러 해조류 소재 중에서 국내 생산량이 많고 연소가 뛰어나 수율이 높은 해초액 화합물을 대량생산 실용화가 가능한 것을 목표로 하며, 해조류인 미역 다시마 톳 기타 김 등을 이용하는 것으로서 주로 원료확보는 폐자원 해조류 등을 이용하여 고온에서 Poly step trap식 건류 공정 적용인 탄화공정을 수반함으로서 생성된 해초 액을 개발하는 연구다. 이를 분리 정제하는 기술적 공정을 개발하고 나아가 시제품을 개발하여 농업, 식품, 비료, 의약품 대체화를 추진함과 동시에 제일 문제시 되고 있는 식품 첨가제를 해결함으로서 고 부가치성 창출과 바이오 생물약제 원료로 개발하고자 하였다. 그래서 해초 액을 추출 분리 및 정제연구를 실시하여 화합물 분석실험을 추진하였다. 그리고 목초액과 성분비교 우위성 입증실험을 성분비교실험을 통해서 비교 검증실험을 추진하였다.

The effect of long-term supplementation with different dietary ${\omega}-6/{\omega}-3$ ratios on mineral content and ex vivo prostaglandin E2 release in bone of growing rabbits

  • Alnouri, Doha Mustafa;El-Din, Mohamed Fekry Serag;Al-Khalifa, Abdulrhman Salih
    • Nutrition Research and Practice
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    • 제8권4호
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    • pp.360-367
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    • 2014
  • BACKGROUND/OBJECTIVES: The aim of this research was to study the different long term effects of consumption of dietary oil sources with varying omega-6/omega-3 (${\omega}-6/{\omega}-3$) polyunsaturated fatty acids (PUFAs) ratios on bone marrow fatty acid level, ex vivo prostaglandin $E_2$ ($PGE_2$) release, and mineral content of bone in rabbits. MATERIALS/METHODS: For this purpose, weaning and female New Zealand white rabbits were purchased and randomly divided into five groups and offered ad libitum diets containing 70 g/kg of added oil for 100 days. The dietary lipid treatments were formulated to provide the following ratios of ${\omega}-6/{\omega}-3$ fatty acids: 8.68 soy bean oil (SBO control), 21.75 sesame oil (SO), 0.39 fish oil (FO), 0.63 algae oil (DHA), and 0.68 algae oils (DHA/ARA). DHA and ARA are two types of marine microalgae of the genus Crypthecodinium cohnii. RESULTS: The dietary treatments had significant effects on the bone marrow fatty acids of rabbits. Rabbits fed the FO diet, containing the highest ${\omega}-3$ PUFA concentration, and those fed the SBO diet showed the highest ${\omega}-6$ PUFA. On the other hand, a positive correlation was observed between Ex vivo $PGE_2$ level and the ${\omega}-6/{\omega}-3$ dietary ratio. Significant effects of dietary treatment on femur Ca, P, Mg, and Zn contents were observed in both genders. CONCLUSIONS: Findings of the current study clearly demonstrated that dietary PUFA, particularly ${\omega}-6/{\omega}-3$ and ARA/EPA ratios are important factors in determining bone marrow fatty acid profile, and this in turn determines the capacity of bone for synthesis of $PGE_2$, thereby reducing bone resorption and improving bone mass during growth.

사이버 중독의 수학적 모델링과 비선형 거동 해석 (Mathematical Modelling and Chaotic Behavior Analysis of Cyber Addiction)

  • 김명미;배영철
    • 한국지능시스템학회논문지
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    • 제24권3호
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    • pp.245-250
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    • 2014
  • 중독은 크게 매개체 자체가 중독성을 가진 매개성 중독과 매개체 자체가 중독성을 가진 것이 아니라 예민한 개인과 잠재된 어떤 행동과 결합하여 중독을 유발하는 유발성 중독으로 나눌 수 있다. 매개성 중독은 약물 중독, 알코올 중독과 주로 화학물질의 직접 적인 원인이 되어 중독현상을 일으킨다. 유발성 중독은 쇼핑 중독, 일 중독, 게임 중독, 인터넷 중독, TV중독, 도박 중독 등의 사이버 중독이 있다. 유발성 중독은 개인의 감수성의 문제로서 개인에 따른 편차가 존재한다. 본 논문에서는 전기 시스템의 R-L-C 직렬 회로와 기계 시스템의 Spring-Damper-Mass를 이용하여 등가적으로 동일한 2차원의 중독 모델을 제안한다. 제안한 중독 모델에 비선형 항을 추가하여 Duffing을 구성한 후 파라미터 변화에 의해 주기운동과 카오스 운동을 시계열과 위상공간으로 나타내었다. 또한 파라미터 중 통제계수의 변화에 의해 주기 운동은 중독 되기 전의 상태를 카오스 운동은 중독된 상태임을 확인하였다.

판으로 나뉘어진 2차원 충류 채널유동에서 동적 유체-구조물 상호작용 수치해석 (Computation of Dynamic Fluid-Structure Interaction in a 2-Dimensional Laminar Channel Flow Divided by a Plate)

  • 남궁각;최형권;유정열
    • 대한기계학회논문집B
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    • 제26권12호
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    • pp.1738-1746
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    • 2002
  • In the FSI (Fluid-Structure Interaction) problems, two different governing equations are to be solved together. One is fur the fluid and the other for the structure. Furthermore, a kinematic constraint should be imposed along the boundary between the fluid and the structure. We use the combined formulation, which incorporates both the fluid and structure equations of motion into a single coupled variational equation so that it is not necessary to calculate the fluid force on the surface of structure explicitly when solving the equations of motion of the structure. A two-dimensional channel flow divided by a Bernoulli-Euler beam is considered and the dynamic response of the beam under the influence of channel flow is studied. The Navier-Stokes equations are solved using a P2P1 Galerkin finite element method with ALE (Arbitrary Lagrangian-Eulerian) algorithm. The internal structural damping effect is not considered in this study and numerical results are compared with a previous work fer steady case. In addition to the Reynolds number, two non-dimensional parameters, which govern this fluid-structure system, are proposed. It is found that the larger the dynamic viscosity and density of the fluid are, the larger the damping of the beam is. Also, the added mass is found to be linearly proportional to the density of the fluid.

방풍통성산가미방(防風通聖散加味方)이 비만유도(肥滿誘導) 백풍(白嵐)와 지방세포(脂肪細胞) 분화(分化)에 미치는 영향(影響) (Anti-obestic Effects of Bangpoongtongsungcankamibang(BTSK) in 3%3-L1 preadipocyte cells and the Lipid Metabolism of Obesity induced Rats)

  • 이진용;김덕곤;안홍식
    • 대한한방소아과학회지
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    • 제20권1호
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    • pp.219-240
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    • 2006
  • Objective : This experimental study was designed to determine the anti-obestic effects of Bangpoongtongsungcankamibang(BTSK). Method : In vitro, BTSK extracts of various concentration (50,100, 200 $200{\mu}g/ml$)were added examination. The protein and mRNA expression of $C/EBP{\alpha}$ and $PPAR{\gamma}$ receptor was measured by western blot assay and RT-PCR. In vivo, BTSK extracts of various concentration (100, $200{\mu}g/ml$) were orally administered to induced hyperlipidemic rats by poloxamer-407 for consecutive four weeks and serum triglyceride, total cholesterol were measured. This method applied to induced hyperlipidemic rats by triton WR-1339, too. Obesity induced rats by the high fat-diet for six weeks were orally administered BTSK extracts of various concentration (100, $200{\mu}g/ml$) and serum triglyceride, total cholesterol, LDL-cholesterol, triglyceride, LDL-cholesterol, triglyceride, HDL-cholesterol, hydroxy radical, superoxide dismuatse activity were measured. Results : I. In vitro 1. The 3T3-L1 cells' differentiation was significantly decreased by BTSK. 2. expression of $C/EBP{\alpha}$ and $PPAR{\gamma}$ was was significantly decreased by BTSK. II. In vitro 1. BTSK significantly reduced serum triglyceride, total cholesterol, contents in poloxamer-407 treated rat. 2. BTSK significantly reduced serum triglyceride, contents in Triton WR-1339 treated rat. But Total cholesterol did not show a significant change. 3. BTSK significantly reduced body weight gain of rat and adipose tissue mass of rats and serum triglyceride, LDL-cholesterol, contents and significantly increased HDL-cholesterol, HTR(HDL-cholesterol/Total-cholesterol) in rats with obesity induced by the high fat-diet. 4. BTSK reduced blood lipid peroxide, hydroxy radical and increased superoxied dismuatse(SOD) activity.

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현대 도예의 전사기법을 활용한 융복합 표현에 관한 연구 (A Study on Convergence Expression Using Transfer Printing Techniques in Contemporary Ceramic Art)

  • 박경주;최정화
    • 디지털융복합연구
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    • 제15권5호
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    • pp.333-338
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    • 2017
  • 현대 도자예술은 다양한 표현기법을 가지고 있다. 그 중에서 현대사회의 디지털화로 인하여 전사기법이 발전하게 되었고 전사기법은 현대도예의 표현매체로 활용되어지고 있다. 그러나 전사기법은 단순히 획일적이며 대량생산을 위한 현장에서의 적극적 활용에 비해 소공예 작가들이 전사기법을 활용해 그들의 작품에 응용할 예술적, 이론적인 충분한 정보를 주지 못하고 있다. 이에. 본 논문에서는 전사기법의 의미를 이해하고 작가의 개성과 예술성을 전사기법으로 표현한 현대 도예작가들의 작품을 고찰해 봄으로써 전사기법이 현대도예의 표현 매체로 도자공예의 미적 예술적 효과를 높일 수 있으며 좀 더 고부가가치 산업으로 자리매김 할 수 있는 토대를 마련하고자 한다.