• Proceedings of the Korean Institute of Building Construction Conference
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• 2022.11a
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• pp.187-188
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• 2022

In this study, the compressive strength and carbonation properties of geopolymer paste according to the amount of alkali admixture added were evaluated for the development of geopolymer concrete that recycles industrial waste. A geopolymer paste specimen was prepared using Ca(OH)2 as an admixture, and the prepared specimen was standard cured for 28 days. After curing, the compressive strength of the specimen was measured. As the amount of alkali admixture increased, the compressive strength increased. After curing, carbonation was carried out for 7 days in a CO2 5% environment. As a result of comparative evaluation of the amount of CaCO3 produced according to carbonation, the amount of CaCO3 produced increased as the amount of Ca(OH)2 added increased. However, when the amount of admixture added exceeds 5%, the increase rate decreases, so the optimum addition rate is considered to be 5%.

• Journal of Korean Academy of Nursing
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• v.43 no.3
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• pp.305-311
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• 2013

Purpose: The purpose of this study was to compare the effect of alcohol gel according to the amount and drying time in health personnel hand hygiene and to promote in their practice adequate and effective hand hygiene. Methods: The crossover experimental study was performed with 14 volunteers. Hands were artificially contaminated with 5 mL of $10^8$ CFU/mL of Serratia marcescens (ATCC 14756) and four different alcohol gel hand hygiene methods varying by the amount of alcohol gel (2 mL vs. 1 mL) and drying time (complete vs. incomplete) were compared. Samples were collected by glove juice sampling procedures. Results: Mean log reduction values of the four different hand hygiene methods were $2.22{\pm}0.36$, $1.26{\pm}0.53$, $1.49{\pm}0.60$, $0.89{\pm}0.47$ respectively for the 4 groups: adequate amount (2mL) and complete dry (30 seconds rubbing followed by 2 min air-dry), inadequate amount (1 mL) and complete dry, adequate amount and incomplete dry (15 seconds rubbing and no air-dry), and inadequate amount and incomplete dry. The difference was statistically significant in the adequate amount and complete dry group compared to other three groups (p<.001). Conclusion: Only alcohol gel hand hygiene with adequate amount and complete drying was satisfactory by U.S. FDA-TFM efficacy requirements for antiseptic hand hygiene products.

• Herbal Formula Science
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• v.17 no.1
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• pp.113-120
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• 2009

Objectives : This study focuses on the effect of the extract which We manufactured by adding Aliium sativum to Ojayeonjonghwan on the amount of semen, the number and the activity of sperm. Methods : We observed any changes in the amount of semen, the number and the activity of sperm after orally administering the test drug for thirty days and taking semen samples from a selected group of men - healthy men in their 20s, as well as men in their 40s who were feeling a decrease in energy. Results : This experiment showed the result that the amount of semen increased by adding Aliium sativum to Ojayeonjonghwan in the case of men in their 20s, but did not show a statistically significant result. It showed the result that the amount of semen increased by a statistically significant level as well as the activity of sperm. Consequently, the result indicated that orally administering the extract added Aliium sativum to Ojayeonjonghwan increased the amount of semen, the number and the activity of sperm for men in their 20s. Men in their 40s who are feeling a decline in energy generally decreased the amount of semen, the number and the ratio of activity of sperm. However the amount of semen remarkably increased and the number and the activity of sperm increased but the result was not statistically significant after orally administering the test drug for thirty days. Conclution : Eventually, the result after orally administering the test drug to the group of men in their 20s and 40s for thirty days indicated that both groups increased the amount of semen, number of sperm and activity of sperm to a statistically significant degree.

• Fashion & Textile Research Journal
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• v.17 no.6
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• pp.996-1003
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• 2015

This study aims to examine the effects of the cutting amount at the waistline on the jacket appearance evaluation and movement functionality, and to suggest a proper waistline cutting amount when designing the men's casual jacket for those in their 30's. The researchers prepared 4 kinds of experimental jackets varying the waistline cutting amount: 0.0cm, 0.5cm, 1.0cm, and 1.5cm. The results of the study are as follows: Regarding the front view appearance, the jacket with the 0.5cm cutting amount achieved the highest score (6 out of 9). On the side view and the back view, there was no meaningful difference. However, the jacket with 0.5cm cutting amount achieved the highest score (4 out of 5). On the other hand, on the movement functionality, there was small statistical difference; the 1.5cm experimental jacket received the highest score in the most areas. This is resulted because if the cutting amount was increased, equally with the V-zone area which gives room for movements. This result showed the difference from the previous research of men in their 20’s,where 0.0cm achieved the highest test score for both appearance and movement functionality. Therefore, this study suggests using the 0.5cm and 1.5cm for the waistline cutting amount; for the jacket appearance 0.5cm is the best while the 1.5cm is better for the movement.

• Atmosphere
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• v.22 no.4
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• pp.401-413
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• 2012

In this study, an investigation has been carried out to understand 1) temporal variation of rainfall amount in summer over south Korea during the 30-year period of 1979-2008 and 2) the relationship between the variation of rainfall amount and the change of large-scale monsoon circulation around 1993/1994 over East Asia. The analysis of rainfall amount is carried out separately for whole summer (June-August), climatological Changma period of 23 June-23 July, and August to consider variations within summer. To relate the variation of rainfall amount with the change of large-scale circulation, we have considered two 15-year periods of 1979-1993 and 1994-2008. This study has used observations at 58 stations in South Korea and NCEP-NCAR $2.5^{\circ}{\times}2.5^{\circ}$ reanalysis data. The major change in synoptic environment for the Changma period is characterized by the intensified anticyclone over Mongolia during 1994-2008, which results in a weak meridional oscillation of Changma front. As a result, rainfall amount for the Changma period and the frequency of extreme events have significantly increased after 1993/1994. A major change of synoptic environment for August is the significant westward extension of the western Pacific subtropical high, which allows not only more moisture transports but also stronger cyclonic circulation over the Korean peninsula. Rainfall amount for August and frequency of extreme events have also increased after 1993/1994. However, variability of rainfall amount is larger for August than that for the Changma period, with some years showing very dry August (monthly rainfall amount less than 150 mm).

• Korean Journal of Plant Resources
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• v.18 no.2
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• pp.279-284
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• 2005

The study was conducted to investigate the correlation and regression analysis between the factors - diameter, hight and crown width - and collection amount of Rhus lacquer by the sex of Rhus verniciflua. The relationship between the diameter and the collection amount of the lacquer by the sex of the lacquer tree indicated that, for both of the male and the female, the lacquer amount was likely to increase as the diameter got larger. In general, the male trees tended towards the higher amount of the lacquer than the female. The relationship between the crown width and the collection amount of the lacquer by the sex showed little difference. As the crown became wider, however, the lacquer amount showed the increasing trend. The regression analysis by the sex of the tree indicated that the major factors of the female had larger influence on the lacquer amount than those of the male. The no differences of statistical significance were found among the diameter, the height, the crown width, and the lacquer amount.

• Journal of the Korean Society of Clothing and Textiles
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• v.35 no.12
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• pp.1418-1424
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• 2011

This study proposes the suggested amount of clothing (SAC) and examines the preferred amount of clothing (PAC) for thermal comfort in mild cold conditions. Six male and nine female college students were systematically exposed to mild cold conditions by reducing the amount of clothing (Step I, 1.2clo ${\rightarrow}$ Step II, 1.0clo ${\rightarrow}$ Step III, 0.8clo ${\rightarrow}$ Step IV, 0.7clo). The subjects were then asked to adjust the amount of clothing to attain overall thermal comfort until they maintained thermal comfort for 10 minutes without changing the amount of clothing (Step V). The experiment was carried out in a climatic chamber at $19.5^{\circ}C$, 50%R.H. Body composition was measured and individual cold climate adaptability was surveyed before starting the experiment. Rectal temperature ($T^{re}$), skin temperature ($T_{sk}$), and oxygen consumption ($\dot{V}O_2$) were measured and the overall thermal sensation was voted in each step. PAC was obtained from the garments weight selected by each subject in Step V. SAC was proposed based on the change of oxygen consumption (${\Delta}\dot{V}O_2$). As a result, males showed higher $\bar{T}_{sk}$ and greater $O_2$ than females (p<.01). SAC obtained from $\dot{V}O_2$ were 652.0 (SE 3.9) g/$m^2$ for males and 766.0 (SE 2.5) g/$m^2$ for females and it was significantly different between groups (p<.01). PAC of males and females were 1.6 and 1.5 times heavier than SAC. In conclusion, females were more sensitive to the cold stress and recommended larger amount of clothing than males.

• The Journal of Korean Obstetrics and Gynecology
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• v.22 no.2
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• pp.79-93
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• 2009

Purpose: This research aimed to study the effect of FAE(Ferment Artemisiae Argyi Folium and Epimedii Herba) on the mouse macrophage cell activity. Methods: Effect of FAE, which was fermented by Sacchromyces cerevisiae STV89, on cell viability, amount of $H_2O_2$ within cells, amount of NO was measured and compaperd by using mouse macrophage cells. Results: 1. Result of MTT assay conducted to observe the effect of FAE on the survival rate of mouse macrophage cells illustrated that, when FAE was proccessed for each concentration, there was no significant decrease of the survival rate. 2. FAE increased the amount of $H_2O_2$ within macrophage cells and increased inhibition of amount of $H_2O_2$ in macrophage induced by LPS. 3. FAE inhibited amount of NO in macrophage cells, and significantly inhibited increase of amount of NO in mcacrophage induced by LPS. Conclusion: FAE produced by Artemisiae Argyi Folium and Epimedii Herba did not induce the decrease of macrophage cell survival rate, increased amount of $H_2O_2$ within cells, and reduced amount of NO. FAE significantly increase by LPS, reduced the increase of amount of NO in macrophage induced by LPS. These results signify FAE has significant effect on immuno modulating activity of macrophage.

• Journal of Korean Library and Information Science Society
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• v.53 no.1
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• pp.211-230
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• 2022

The purpose of this study is to examine the relationship between reading attitude, reading amount, and personality type of college students, and to prepare a plan to improve the reading rate. As a result of the study, Reading attitudes have been shown to affect reading volume, paper book reading amount, personal reading amount, and e-book reading amount. In the personality type, openness has had a positive impact on reading and reading attitudes. On the other hand, the attention was negatively affecting the reading amount and the reading attitude, except for the amount of e-book reading. The implications derived from this are as follows. First, college students need a library environment and a library environment that can read books that can read books. Second, in order to increase the reading amount of extraversion, it is necessary to conduct dynamic reading activities in the center of the activity and conduct a local reading club activity linked to community activities.

• The Research Journal of the Costume Culture
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• v.31 no.5
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• pp.640-650
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• 2023

This study aimed to suggest a suitable collar pattern by visually evaluating the appearance of the amount of collar drape by the starting position of the lapel line of a double-breasted tailored jacket using a 3d virtual fitting program. It created an avatar based on the mean size of women in their 20s (the 8th Size Korea) using clo network (double fastening: 10cm, collar width: 4.5cm, collar stand: 3cm, and lapel width: 8.5cm). The starting of the lapel twist line was waistline level, the 1/2 level of bustline and waistline, or bustline level, and collar laying amount was 4.5, 5.5, 6.5, or 7.5cm. It was evaluated by garment construction experts using 5, 6, and 4 items on the front, sides, and back, respectively. Descriptive statistics, F-test, Duncan-test, and reliability analysis were conducted using SPSS 22. When collar laying amount was 6.5cm, it was best rated regardless of the starting point. Under waist line, when collar laying amount was 6.5cm, it was best rated regardless of the starting point. When collar laying amount was large, the collar's outline length increased, resulting in unnecessary wrinkles from the neckline to the lapel, affecting the overall collar appearance. When collar laying amount was the smallest, the collar was lifted and the width was narrowed, exposing the seam connecting the collar and neckline. The length of the collar's outline varied depending on collar laying amount, which was important to make the outline sit comfortably on the body.