• 제목/요약/키워드: Lowering

검색결과 3,072건 처리시간 0.033초

VA-LCD의 측면전장효과에 관한 연구 (A Study on the Lateral Field Effect of VA-LCDs)

  • 임철재
    • 한국전기전자재료학회논문지
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    • 제21권3호
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    • pp.260-264
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    • 2008
  • We analyzed the lowering of transmittance due to lateral field effect in the edge of pixel. We studied the method to solve the problem of VA-LCD. It occurred director distortion and transmittance lowering by strong lateral field in the edge of pixel. For analyzing the director distortion and improving the transmittance lowering, we applied the edge pattern to PVA-LCD of cross pattern. As a results, transmittance in the new VA modes were higher than that of conventional VA modes.

마그네슘 및 칼슘이 혈청콜레스테롤 농도 저하에 미치는 영향(II) (Influence of Magnesium and Calcium on the Serum Cholesterol Level Lowering (II))

  • 남현근
    • 한국응용과학기술학회지
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    • 제2권2호
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    • pp.21-24
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    • 1985
  • The effects of dietary magnesium, calcium on the serum cholesterol concentration in rabbit was studied for a period of 21 days using isocalorids and isonitrogenous basal diet. It is investigated that the serum cholesterol level lowering by feeding with calcium, magnesium, sesame oil and perilla oil, did not appeared but perilla oil and magnesium feeding group appeared a little bit lowering. There was no effect for the total protein, but there was some sort of effect for albumin and globulin. Particulary, alpa-globulin was increased by calcium, magnesium, sesame oil and perilla oil feeding groups. The esterified cholesterol was increased at the magnesium and perilla oil diet group. It is also, investigate that there is almost no effect for the electrolytes concentration and transport phenomena in the cell through magnesium, calcium, sesame oil and perilla oil diet groups.

결합된 수동물질취급 작업에서의 인체심리학적 연구 (Psychophysical Study of Combined Manual Material Handling Tasks)

  • 윤훈용
    • 산업경영시스템학회지
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    • 제22권50호
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    • pp.65-73
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    • 1999
  • Most psychophysical studies in manual material handling (MMH) have paid more attention to two-handed MMH activities than to one-handed MMH activities. Also, studies are involved only with single MMH activities - lifting, lowering, carrying, holding, pushing or pulling. Very few studies are reported on the determination of workers' capacities for combinations of one-handed MMH activities (lifting a box, then carrying the box, and lowering the box). The objective of this study was to find the psychophysical and physiological responses of human subjects from a simulated industrial task involving one-handed and two-handed combined tasks. The capacities that were determined as the maximum acceptable weight workloads for 1 hr work period for one-handed and two-handed combined tasks - lifting a box from floor to knuckle height, carrying the box for 4.3 m, and lowering the box from knuckle to floor height - were determined psychophysically under three frequencies: six handlings per minute, one handling per minute and one handling per five minutes. In addition to maximum acceptable weight, heart rate and RPE values on wholebody, back, and arm were also measured as responses.

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유산균(Bifidobacterium bifidus)에 의해 발효된 발효유가 고지방식을 섭취한 흰쥐의 혈청과 간의 콜레스테롤 농도 저하에 미치는 효과 (The Effects of milk fermented by Bifidobacterium bifidus on lowering effect of Serum and Liver cholesterol in High Fat Diet Fed Rats)

  • 원향례;최석호
    • 한국지역사회생활과학회지
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    • 제12권1호
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    • pp.15-22
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    • 2001
  • This study was conducted to find out the effect of fermented milk on lowering of serum and liver cholesterol in high diet. Sprague-Dawley male rats of 200g initial average weight were assigned to four experimental group : (1) high fat diet + milk (2) high fat diet + bifidobacteria (3) high fat diet + microcapsulated bifidobacteria (4) high fat diet + fermented milk by bifidobacteria. Milk, bifidobacteria, microcapsulated bifidobacteria and fermented milk by bifidobacteria were given 2ml per day. According to the result, there was lowering effect of serum and liver total cholesterol in fermented milk feeding group, Serum LDL-cholesterol was also low tendency in fermented milk by bifidobacteria feeding group. Accordingly, it was confirmed that the material that caused hypocholesteremic effect was not the bifidobacteria itself in fermented milk but the metabolic material produced in the fermentation, and it inhibited cholesterol synthesis in liver.

Effects of Coptidis Rhizoma on Lowering Lipid and Oxidative Stress

  • Lee, Eun;Cho, Eun-Joo
    • 한국자원식물학회지
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    • 제20권6호
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    • pp.544-547
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    • 2007
  • The effects of hwangryun(Coptidis Rhizoma) on lowering lipid and oxidative stress in the induced obesity rat was observed. The concentration of plasma triglyceride in hwangryun treatment groups showed the low values compared to the control group, and as the increased hwangryun, the concentration of triglyceride decreased. The concentration of plasma total cholesterol decreased in all hwangryun treatment groups. However the concentration of plasma HDL-cholesterol and LDL-cholesterol showed no significantly difference in all the treatment groups. Thiobarbituric acid reactive substance(TBARS) concentration in plasma and liver showed low values in all hwangryun treatment groups compared to the control group. Glutathione peroxidase(GSH-Px) and superoxide dismutase(SOD) activities showed no significantly difference in all the treatment groups. However catalase(CAT) activity showed a tendence to increase in hwangryun groups, and in 200mg/kg hwangryun treatment group showed significantly a high value than the control group. Summarizing the results above, hwangryun has the functional materials that lowering lipid and works with oxidative stress.

대학건물에서 에너지비용 변화에 따른 히트펌프 냉난방시스템에 대한 경제성 분석 (Economic Analysis of Heating and Cooling System Corresponding to the Energy Cost of University Building)

  • 김동완
    • 교육시설
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    • 제16권1호
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    • pp.43-50
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    • 2009
  • This research is to analyze LCC of Heat Pump system in university building by reduction of electric power costs for education and incentive system for gas. Produced details item different expense of EHP and GHP equipment construction step and preservation administration step. Analysis result is as following. 1) Executed LCC analysis for target system after lowering whole curriculum reduction of electric power costs for education. Analysis result, energy cost-cutting effect of EHP appears greatly than GHP unlike existent study finding, EHP decided by economical system. 2) Sensitivity analysis executed by incentive 500,000 won per units and geometrical ration of gas expense by 1%. As a result, because lowering effect of electric charges appears greatly, EHP decided by more economical system than GHP. As research result of front is different from existent study finding, EHP by lowering of electric charges for alteration and education of governmental frequent volunteer system was decided by more economical system than GHP.

A Comparison of the Immediate Effects of Alternate Methods to Medication in Lowering the Blood Pressure in Prehypertensive Patients

  • Moon, Hyun-Ju;Cho, Sung-Hak
    • The Journal of Korean Physical Therapy
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    • 제28권3호
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    • pp.201-204
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    • 2016
  • Purpose: The purpose of this study was to compare the immediate effects of alternative treatment methods in lowering the blood pressure and pulse of prehypertensive patients. Methods: A total of 48 prehypertensive patients were randomly divided into 4 groups of 12 patients and each group received a different intervention. The control group was made to rest, the heat pack (HP) group received heat pack treatment, the ultrasound (US) group received an ultrasound massage, and the myofascial release (MFR) group received myofascial release. The blood pressure and pulse rate were measured before and after intervention. Results: Following intervention, the patients of the MFR group showed a decrease in systolic pressure, diastolic pressure, and pulse rate. Although blood pressure was similar in all groups, a significant decrease in pulse rate was seen in the MFR group compared to others. Conclusion: The application of MFR was shown to be an effective method for lowering the blood pressure and pulse rate in prehypertensive patients.

Effects and Mechanisms of Silkworm Powder as a Blood Glucose-Lowerinly Agent

  • Ryu, Kang-Sun;Lee, Heui-Sam;Kim, Iksoo
    • International Journal of Industrial Entomology and Biomaterials
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    • 제4권2호
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    • pp.93-100
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    • 2002
  • Cocoon production, which is a representative of traditional sericulture shifted into silkworm powder production in the spring of 1995. This, infect, signifies the change from the dress-centered textile business to the bio-industry and the functional resource industry. One of the most outstanding shifting is utilization of silkworm larvae for anti-diabetic agent. In Asian countries including Korea, silkworm powder derived from the domestic silkworm (Bombyx mori L.) has long been favored for anti-diabetic agent, but its efficacy was not tested until last decade by modern scientific methods. In this article, we reviewed the major researches on the silkworm powder as a blood glucose-lowering substance. After the beginning test of the efficacy of silkworm powder by a cooperative research between Department of Sericulture and Entomlogy, NIAST, RDA and Kyung Hee University, substantial data have been accumulated so far, In a serial experiment to select best condition, the fifth instar larvae prepared by freeze dry method turned out to have the best blood glucose-lowering effect. In the pharmacological experiment to understand the mechanism of silkworm powder in small intestine, the silkworm powder turned out to inhibit the activity of ${\alpha}$-glucosidase, by competitively binding to $\alpha$-type disaccharides. The animal experiment showed that the extract of silkworm powder prevents a rapid increase of blood glucose level after meal and prevents hunger and law blood glucose level during empty stomach. In the experiment to isolate the major component of silkworm powder, which exerts blood glucose-lowering effect, 1-deoxynojirimy-cin (DNJ) was eventually mass-purified, and it turned out that DNJ isolated from silkworm powder was excellent in its blood glucose-lowering effect. In the experiment to understand the personal difference of the efficacy of the silkworm powder, clinical candidates were divided on the basis of the criterion of traditional Chinese medicine: Tae-Yang, Tae-Um, So-yang, and So-Um. The result showed that silkworm powder has a tendency to reduce blood glucose level at fasting and at 2 hours after meal, and this trend was somewhat obvious in the Tae-Um body type. In summary, we reviewed scientific papers on the efficacy of silkworm powder and its purified DNJ as a blood glucose-lowering agent. These suggest that silkworm powder truly possesses blood glucose-lowering effect as documented in the traditional Chinese medicine, although further researches will be required to develop them as "medical" resource instead of functional food.

Quenching을 이용한 $1\mu{m}$ 미만의 Cell 형성 (Formation of cell under $1\mu{m}$ by quenching)

  • 이병희;차성운
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 2005년도 춘계학술대회 논문집
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    • pp.1420-1423
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    • 2005
  • Micro Cellular Plastics create a sensation at polymer industrial for lowering product cost & overcoming a lowering of mechanical intensity. Reduction of MCPs cell size increases the intensity of MCPs. This research based on the experiment about cell size reduction method. At this study, Quenching & Pressure foaming process are introduced to one of methods. Conclusion of study is that Quenching process is the simplest process for nano cell formation.

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A DIFFERENTIAL EQUATION FOR MULTIPLE BESSEL POLYNOMIALS WITH RAISING AND LOWERING OPERATORS

  • Baek, Jin-Ok;Lee, Dong-Won
    • 대한수학회보
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    • 제48권3호
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    • pp.445-454
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    • 2011
  • In this paper, we first find a raising operator and a lowering operator for multiple Bessel polynomials and then give a differential equation having multiple Bessel polynomials as solutions. Thus the differential equations were found for all multiple orthogonal polynomials that are orthogonal with respect to the same type of classical weights introduced by Aptekarev et al.