• Title/Summary/Keyword: hardness

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A ground theory approach on fatigue of the female elderly with osteoarthritis (관절염을 앓고 있는 노인 여성 피로 경험의 근거 이론적 접근)

  • Kwon, Young-Eun;Chung, Myung-Sill
    • Journal of muscle and joint health
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    • v.3 no.1
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    • pp.50-62
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    • 1996
  • The purpose of this study was to identify and construct a substantive theory about the experience of fatigue among the female elderly with osteoarthritis. The interviewees were 6 female elderly with osteoarthritis. Of them 3 were admitted General hospital, the remaining 3 didn't admitted hospital. The data were collected through in-depth interviews by the investigators from May 20th, 1995 to June 19th, 1995. The collected data were coded into concepts and categories according to Strauss & Corbin's grounded method. The data thus collected were analyzed immediatly after interviews and fed into next round of interviews until the data collection reaches the saturation point where no additional concepts emerge. The 35 concepts were from analyzing the grounded data. The results of this study were as follows : 'change of the health condition','change of the life pattern', 'physiologic change', 'change of the coping pattern', 'performance of homework', 'activity daily living', 'tireness', 'ache', 'change of general apperance', 'sleep disturbance', 'powerlessness'. 'Physiologic unbalance', 'change of the family dynamics', 'physical imbalance', 'loss of the control', aviodance', 'conversion', 'leaving', 'indifference', 'hesitation', 'the pursue of information and trial', 'the western therapy', 'heat therapy', 'the oriental therapy','exercise', 'weight control', 'support', 'solution', 'being as before', 'adding more'. Six categories emerged from the analysis of ground data. They were as follows : 'stimuli', 'fatigue', 'passive coping', 'active coping', 'disolution', 'remains'. 13 hypothesis were derived from the integration of categories as follows : 1. The stronger the stimulus as perceived by the subjects, the more the fatigue will exrerience. 2. The more severe the fatigue, the more severe the tireness. 3. The more severe the fatigue, the more the hardness. 4. The more severe the fatigue, the more the variability of appear will experience. 5. The more severe the fatigue, the more the pain will experience. 6. The more severe the fatigue, the more the insomnia will experience. 7. The more severe the fatigue, the more the powerless will experience. 8 The more severe the fatigue, the more the psychological unbalance will experience. 9. The more severe the fatigue, the more variability of the family dynamics will experience. 10. The more severe the fatigue, the more the physical unbalance will experience. 11. The more severe the fatigue, the more loss of control will experience. 12. The subjects who experienced the fatigue will be to show passive coping and active coping mechanism.

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Scintigraphy with Indium-111-oxine Labeled Leukocytes for Localization of Abscesses (복부농양진단을 위한 Indium-111 표지백혈구스캔)

  • Kim, Byung-Tae;Lee, Dong-Soo;Lee, Kyung-Soo;Choi, Hyung-Shik;Kim, Myung-Joon;Yang, Seung-O;Lee, Jae-Hoon;Choi, Chang-Soon;Kim, Taek-Kyu;Chung, June-Key;Lee, Myung-Chul;Koh, Chang-Soon
    • The Korean Journal of Nuclear Medicine
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    • v.24 no.1
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    • pp.37-48
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    • 1990
  • Detection of deep-seated abscesses is sometimes difficult with ultrasonogrpahy or computed tome graphy alone. Indium-111-labeled leukocyte has widely used in the localization of abscesses after introduction by Segal and Thakur in 1976. But there are some difficulties in using indium-111-oxine in our country because of hardness to get the radiopharmaceutical timely and long time for labeling leukocytes. So we peformed the indium-111-labeled leukocyte scan for establishment of the labeling procedure and clinical application. We labeled the mixed leukocytes from 36 ml of patient's blood using 4 ml of ACD solution, 7 ml of 6% hydroxyethyl starch solution $(HESPAN^{(R)})$, 1 mCi of indium-111 oxine, 5 ml of normal saline and centrifuge. It took about 2 hours for the preparation of radiolabeled leukocytes and attention for contamination was needed. The average injected dose of labeled mixed leukocytes was 465 uCi. The average number of injected leukocytes was $2.5\times10^8$ and the labeling ratio was $57{\pm}13%$ (Table 2, Fig. 5). These number and ratio were sufficient for the localization of abscess. About twenty per cent of indium was labeled to red blood cells and platelets (Fig. 6) and the half-life of injected radiolabeled leukocytes was 8.3 hours. Scan was performed in 9 patients who were suspected to have abscesses clinically or radiologically. Three patients were positive, in one patient who had abscess close to lower lumbar vertebrae was surgically drained and another 2 positive cases did not show abscess clearly on computed tomography, so only antibiotics were administrated and treated successfully. The negative 6 patients were improved without specific treatment. In conclusion, the use of indium-111 oxine labeled leukocytes for localization of abscesses were very specific and helpful in the decision of treatment considering its relatively simple labeling method, and could be easily performed providing timely supply of the radiopharmaceutical.

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Study on Removal Time of Former Crop and Bacterial Wilt Reduction in Non-Tillage Tomato Culture by Grafting with EG-203 after Strawberry Cropping (가지대목(EG-203)을 이용한 딸기 후작 토마토 무경운 재배에서의 풋마름병 경감 및 전작물 제거시기 구명 연구)

  • Lee, Mun-Haeng;Park, Guen-Se;Lee, Hee-Keyung;Lee, Hwan-Gu;Kim, Keyng-Jae;Lee, Sun-Gye;Cho, Pyeng-Hwa;Kim, Young-Shik;Kim, Sung-Eun;Han, Kyoung Suk;Hwang, Gap-Chun
    • Korean Journal of Organic Agriculture
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    • v.22 no.4
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    • pp.657-665
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    • 2014
  • This study was carried out to study the effect of eggplant (EG203) grafting and strawberry removal time on succeeding tomato cropping in high temperature season. In non tillage culture, bacterial wilt incidence was 30% and 0% in nongrafting and eggplant (EG203) grafting while 25% in non-grafting and 0% in eggplant (EG203) grafting in tillage culture. Commercial yield was similar in tillage and non-tillage culture using EG-203 grafting as 2,693 kg/10a and 2,657 kg/10a respectively with no difference in soluble solid content and hardness. Strawberry removal time after tomato planting enhanced plant height and internode length in 20days and 30days later removal while no difference in other growth characters. Commercial yield was higher as 1,885 kg/10a in strawberry removal before tomato planting than 1,678 kg/10a in 30days later removal. From this research, strawberry removal time should be determined by considering strawberry price and growth and expecting profit by succeeding tomato cropping.

Han River Pollution Studies (한강의 오염도)

  • Choe, Sang
    • 한국해양학회지
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    • v.7 no.1
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    • pp.24-45
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    • 1972
  • The Han River is an important water source in Seoul and neighbouring districts, for public and industrial supply, and for agriculture and fishery. Nowadays, more than six million inhabitants are supplied withe water from this river. The total length of the river is 470km, and has 17 10$\^$9/㎥ an average annual flow. The hydrographic characteristics at Seoul are 653㎥/sec in an average flow, 4,608㎥/sec in the maximum average flow, and 201㎥/sec in the minimum average flow. These are influenced in some degree by snowmelt in early spring, and greatly by the flood during summer. For the pollution problems, the periods of low flow are critical ones. As a rule they occur around the months November through June. Nowadays, most of the sewage from towns and industries is discharged untreated. Apart from domestic and industrial sewages, there are some discharges of mineral matter by mines in the upriver region. In general, water quality of the Han River is kept very clean and healthy until Kwangnaru of the upper region of Seoul. A large pollution, however, is received in the downstream by the domestic and industrial sewages of Seoul. It can be seen that dissolved oxygen, COD and BOD$\sub$5/ diminish markedly, and the intensity of almost every water parameter of the river continues to increase. Comparison of the figures for 1971 derived from a sampling point 40km downstream of Kwangnaru leads to the conclusion that hardness, Ca and Mg were no changed; alkalinity, Si and soluble- Fe were slightly increased; CO$\sub$2/, acidity, Cl, NO$\sub$2/-N, Cu, Zn and Al were increased in 2 and 3 times; total residue, total ignitious residue, COD, BOD$\sub$5/, NH$\sub$4/-N, PO$\sub$4/-P, Mn, Pb and total-Fe were increased in 4 to 7 times; and SO$\sub$4/, particulate-Fe and Cd were increased in 10 to 11 times. On the other hand, coliforms were increased in 650 times; fecal coliforms in 365 times; enterococci and total plate counts in 30 times, respectively. In view points of water quality standards, the down Han River water is now leveling out in Cd, coliforms and fecal coliforms for the agricultural use; in dissolved oxygen and some trace elements (Cu, Zn, Pb and Cd) for the fishery use; in ammonia, COD, BOD$\sub$5/, and Cd for the drinking use.

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Breeding of New Ever-bearing Strawberry 'Gangha' for Summer Culture (사계성 딸기 '강하' 육성)

  • Lee, Jong-Nam;Lee, Jun-Gu;Lee, Eung-Ho;Kim, Hye-Jin;Jang, Suk-Woo
    • Horticultural Science & Technology
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    • v.28 no.3
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    • pp.515-518
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    • 2010
  • 'Gangha' is new strawberry ($Fragaria{\times}ananassa$ Duch.) cultivar, which was released by National Institute of Highland Agriculture, RDA, in 2008. In 2004, this cultivar was originated from a cross between 'Samahberi' and 'Elan' and showed excellent ever-bearing characteristics including continuous flowering habit, high yield under long-day and high temperature condition. It was named 'Saebong No.2' after examining its characteristic and productivity in summer culture from 2006 to 2007. Again, after two regional adaptability tests in 2008, 'Gangha' was selected as an elite cultivar. The general characteristics of 'Gangha' include semi-spreading type, middle vigor, elliptic leaf, and long cluster in growth. The fruit shape is oval and fruit color is red. Fruit quality had 1ow activity, hardness but high soluble solids contents. This average fruit weight of 'Gangha' is about 12.0 g and the marketable yield is relatively high because of more flower cluster appearance. It is resistant against powdery mildew, anthracnose, and fusarium wilt. 'Gangha' is suitable for summer culture using domestic consumption because it is shows continuous flowering habit, high yield, and fruit quality under long-day and high temperature condition.

Modification of Water-borne Polyurethane Using Benzophenone Crosslinker (Benzophenone 가교제를 이용한 수분산 폴리우레탄 개질)

  • Kim, HyeokJin;Kim, Jin Chul;Chang, SangMok;Seo, BongKuk
    • Applied Chemistry for Engineering
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    • v.27 no.2
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    • pp.221-226
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    • 2016
  • Production of eco-friendly and biologically harmless materials is strongly required in all industries. In particular, reducing volatile organic compounds in coating processes is extremely important to secure worker's safety. During recent two decades, extensive research works on water-borne polyurethane dispersion (PUD) have been continuously developed as an alternative to solvent-borne polyurethane. However, PUD was shown inferior mechanical properties to the organic solvent-borne polyurethane due to a limit to the molecular weight increase, which resulted in the limit of applications. To overcome this drawback, several approaches have been examined such as polymer blends and thermal/radiation induced crosslinking. Among these methods, the radiation curing system was suitable for industrialization because of the high crosslinking density and fast curing speed. In this study, we overcame the drawback for PUD via introducing benzophenone radiation curable units to PUD. We synthesized PUD films which possessed good dispersion in water for 30 days, increased Tg and Td more than $5^{\circ}C$ after UV curing film as well as improved young's modulus more than double.

The Study of Water Resistance and Water/Oxygen Barrier Properties of Poly(vinyl alcohol)/Water-soluble Poly(ethylene-co-acrylic acid) Blend Films (폴리비닐알콜/수분산 에틸렌-아크릴산 공중합체 블렌딩 필름의 내수성 및 수분/산소 차단성 연구)

  • Kim, Eun Ji;Park, Jae Hyung;Paik, In Kyu
    • Applied Chemistry for Engineering
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    • v.23 no.2
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    • pp.217-221
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    • 2012
  • Blending films having enhanced water-resistance and barrier properties were prepared using the mixtures of poly(vinyl alcohol) (PVA) aqueous solution and poly(ethylene-co-acrylic acid) (EAA) dispersed in water. Thermal-mechanical properties, contact angles, water-vapor transmission rates (WVTR) and oxygen transmission rates $(O_2TR)$ were measured with the content of EAA of blending films, and their water-resistance was evaluated. The tensile strength of the films was found to be $9.16{\sim}11.75\;kg/mm^2$ which showed no significant difference compared with that of PVA, and the hardness increased with the content of EAA. The glass transition temperature and melting temperature of the blending films were slightly improved. The film prepared with PVA/EAA (= 90/10), of which the swelling and solubility were measured to be 109 and 0%, respectively, showed improved water-resistance. The WVTR and $O_2TR$ for the PET film (thickness $50\;{\mu}m$) coated with PVA/EAA (= 90/10) film (thickness $2.5\;{\mu}m$) were measured to be $9.1\;g/m^2/day$ and $2.0\;cc/m^2/day$, respectively.

Studies on the Preservation of Apple -Effect of Inorganic Compounds Applied in the Field on the Shelf-life of Apples- (사과 저장(貯藏)에 관한 연구(硏究) -무기영양(無機營養)이 사과의 저장(貯藏)에 미치는 영향-)

  • Park, Nou-Poung;Kim, Yun-Jin;Kim, Sung-Kih;Rhee, Chong-Ouk
    • Korean Journal of Food Science and Technology
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    • v.9 no.1
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    • pp.13-18
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    • 1977
  • In order to improve the storage ability of Spur Red Delicious apple, calcium ingredients were applied to the apple tree during the growing period, and then the effects of calcium on appearances and respiratory activity of harvest apples were investigated during the storage period. The results of this work were summarized as follows: 1. The freshness of apples treated by calcium compounds reached $73{\sim}78%$, but that of control group was 68% by March of next year. 2. The respiratory rate of the apples that had been applied the high concentration of ammonium sulfate in field during the growing period, was accelerated rather than control group, and that of calcium treatment groups was continuously inhibited during the storage period. 3. The direct foliar application of calcium compounds in the field was more effective than dipping apples in calcium chloride solution for better quality and improving storage ability after harvest. 4. The freshness and hardness relatively not much decreased in calcium treatment groups even after 5 month storage.

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Quality Characteristics of Gangjung Made of Different Varieties of Waxy Rice (찹쌀 품종별 강정 제조 특성)

  • Kim, Kyung-Mi;Lee, Ji-Hyun;Kim, Haeng-Ran
    • Korean Journal of Food Science and Technology
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    • v.42 no.2
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    • pp.175-182
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    • 2010
  • Differences in physiochemical characteristics of row waxy rice, steeped in optimum steeping conditions ($31.5^{\circ}C$, 9 days) were investigated along with the relationship between these properties and the quality characteristics of Gangjung made from ten different varieties of waxy rice in order to identify the optimal waxy rice variety for making Gangjung. The moisture content of ten waxy rice varieties was increased, but protein and ash contents were decreased during steeping. Mineral analysis, showed that the Fe, Mg, Ca, Na and K contents of all samples were decreased during steeping. Regarding the gelatinization behavior of the ten waxy rice varieties, the peak viscosity and breakdown were increased with the exception of Backjinju and Backjinju-1 during steeping. Shinsunchalbyeo was the most adaptable waxy rice variety for making Gangjung, as its tested scores for expansion ratio and crispness were higher than other waxy rice varieties. The textural properties of Gangjung made from Backjinju and Backjinju-1 had the highest levels of hardness and showed the lowest expansion ratios. Therefore, Backjinju and Backjinju-1 are considered the worst varieties for making Gangjung.

Quality Characteristics of Low-Fat Butter Sponge Cakes Prepared with Whey Protein Isolate (Whey protein isolate가 첨가된 저지방 버터 스폰지 케이크의 품질 특성)

  • Kim, Chan-Hee
    • Korean Journal of Food Science and Technology
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    • v.42 no.2
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    • pp.165-174
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    • 2010
  • The effects of substituting whey protein isolate (WPI) for butter in the preparation of butter sponge cake were determined by objective and subjective tests. The specific gravity of cake batter, the cooking loss and moisture content of cake were all decreased with increasing amounts of WPI, whereas specific loaf volume was increased. With increasing WPI content, redness of crust and crumb, as well as lightness of crumb were increased, whereas lightness of crust, as well as yellowness of crust and crumb were all decreased. Hardness, chewiness, gumminess, adhesiveness and fracturability were increased significantly with increasing amounts of WPI, however, cohesiveness, springiness, and resilience were decreased. In the sensory evaluation, 20% WPI-substituted cake displayed scores similar to those of control. These results suggest that substitution of 20% WPI could be the best ratio for the preparation of butter sponge cake.