• Title/Summary/Keyword: Retention loss

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A Study on The Phenolic Content of Potatoes (감자에서의 페놀화합물에 대한 연구)

  • Choi, Hay-Mie
    • Korean Journal of Food Science and Technology
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    • v.8 no.2
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    • pp.80-84
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    • 1976
  • Two varieties, Lasoda and Sebago potatoes, were studied. Different cooking methods, conventional oven baking at $218^{\circ}C$ and microwave oven baking, have been used to compare the retention of the phenolic compounds. Peeled cortex samples of fresh and cooked potatoes were analyzed for total phenols, phenolic constituents, and moisture loss. Phenolic content was higher in fresh potatoes than in cooked potatoes. Laasoda had higher phenolic content (3. 63mg) than Sebago (1. 71mg). Potatoes with higher phenols (Lasoda) also had larger quantities of chlorogenic acid. There was a greater moisture loss in conventional oven baking potatoes than in microware oven.

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Study on the Activation Energy of Charge Migration for 3D NAND Flash Memory Application (3차원 플래시 메모리의 전하 손실 원인 규명을 위한 Activation Energy 분석)

  • Yang, Hee Hun;Sung, Jae Young;Lee, Hwee Yeon;Jeong, Jun Kyo;Lee, Ga won
    • Journal of the Semiconductor & Display Technology
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    • v.18 no.2
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    • pp.82-86
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    • 2019
  • The reliability of 3D NAND flash memory cell is affected by the charge migration which can be divided into the vertical migration and the lateral migration. To clarify the difference of two migrations, the activation energy of the charge loss is extracted and compared in a conventional square device pattern and a new test pattern where the perimeter of the gate is exaggerated but the area is same. The charge loss is larger in the suggested test pattern and the activation energy is extracted to be 0.058 eV while the activation energy is 0.28 eV in the square pattern.

Complication rates and patient satisfaction with removable dentures

  • Bilhan, Hakan;Erdogan, Ozge;Ergin, Selen;Celik, Melahat;Ates, Gokcen;Geckili, Onur
    • The Journal of Advanced Prosthodontics
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    • v.4 no.2
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    • pp.109-115
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    • 2012
  • PURPOSE. The purpose of this clinical study was to evaluate the frequency and type of prosthetic complications in relation to type and properties of removable dentures and to investigate the influence of these complications and several data about the existing dentures on patient satisfaction. MATERIALS AND METHODS. Ninety nine patients (44 males and 55 females) wearing removable dentures have been included in the study. The complications of the patients were recorded; patient satisfaction was determined with a Visual Analog Scale (VAS) and the relationship of complications and patient satisfaction with several data about the dentures such as denture age, type of denture, centric relation and vertical dimension was investigated. Kruskal Wallis, Mann Whitney U and Chi square tests were used for statistical analyses. The results were evaluated statistically at a significance level of $P$ <.05. RESULTS. Need for addition of artificial teeth for dentures with correct centric relations was found to be significantly lower than dentures with wrong centric relations ($P$ <.01). Loss of retention, ulcerations and high vertical dimension affected the VAS chewing ability scores negatively and ulcerations affected the VAS phonation scores negatively ($P$ <.05). CONCLUSION. Considering the results of this study, it can be concluded that loss of retention, ulcerations and high vertical dimension caused patient dissatisfaction. Additionally, dentures with wrong centric relations caused need for addition of artificial teeth.

REMOVABLE FLEXIBLE DENTURE FOR CHILD WITH LOSS OF MULTIPLE TEETH : A CASE REPORT (소아에서 다수치아 상실 시 탄성의치 사용의 치험례)

  • Chung, Yang-Seok;Lee, Nan-Young;Lee, Sang-Ho
    • Journal of the korean academy of Pediatric Dentistry
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    • v.34 no.3
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    • pp.513-518
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    • 2007
  • Loss of multiple teeth by multiple dental caries, traumatic influence or hereditable disease can cause many problem in children. Using removable appliance can be used for treatment of this problem. But conventional removable appliance has limits of retention by wire-clasp, non esthetic appearance, difficulty in pronunciation by its volume. Flexible denture using $Valplast^{(R)}$ system could be a excellent partial denture for restorarion in child because of various advantage such as retention from soft tissue, natural esthetic aspect, biocompatibility, durability to compare with conventional acrylic appliance. The present case report describe properties and consideration of flexible denture using Valplast $system^{(R)}$ in comparison with conventional acrylic appliance and report successful restoration of child using Valplast $system^{(R)}$.

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Studies on the Shellfish Processing -4. The Changes of Pigment Retention and Water Absorbing Capacity of Dehydrated Surf Clam Meat during Storage- (패류 가공에 관한 연구 -4. 개량조개 건제품 저장중의 색소 잔존율 및 흡수율의 변화에 대하여-)

  • Lee, Eung-Ho;Hur, Jong-Wha;Han, Bong-Ho
    • Korean Journal of Food Science and Technology
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    • v.3 no.1
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    • pp.52-56
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    • 1971
  • The cooked surf clam meat was treated with BHA or EDTA, and then dehydrated by means of hot-air dehydration or sun drying. The dehydrated products were packed in glass bottle and stored for three months in the dark place. After three month storage, the pigment loss and water absorbing capacity of dehydrated products were compared with those of directly after dehydration. Both of the sun dried and hot-air dehydrated surf clam products showed a great deal of pigment loss during storage. The BHA treatment prior to dehydration of surf clam meat had good effects on the pigment retention, and the EDTA treatment had a weak effect on it during storage. The rate of rehydration of dehydrated surf clam products had markedly decreased during storage. And it could be seen that there was little difference among the rate of rehydration of the BHA or EDTA treated product and untreated one during storage.

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Reproductive Disorders that Limits the Reproductive Performances in Dairy Cows of Bangladesh

  • Al Maruf, Abdulla;Paul, Ashit Kumar;Bonaparte, Napolean;Bhuyian, Mosharrof Hossain;Shamsuddin, Mohammed
    • Journal of Embryo Transfer
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    • v.29 no.2
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    • pp.189-194
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    • 2014
  • The reproductive disorders are the major causes of reproductive infertility in cows that affect the total annual calf crop, resulting in great economic loss in Bangladesh. The aim of the study was to find out the reproductive disorders (RD) in dairy cows that markedly influences the reproductive performances in aspect of Bangladesh. A total number of 1658 dairy cows were selected according to their body condition score (BCS) in different farms at the southern part of Bangladesh during the period of 2011 to 2012. The preliminary data (basic information) were collected directly from the dairy farmer's record books and asking questions according to a prescribed questionnaires as well as the diagnosis of RD was presumptively confirmed on the basis of history, clinical signs and examination of animals by ultrasonography and others necessary tools. There are thirteen major reproductive disorders were identified. Overall prevalence of reproductive disorders at that area were 23%, among of these anoestrus 5.1%, repeat breeder 3.7%, metritis 4.4%, poor heat detection 1.6%, ovarian cyst 0.36%, retain placenta 4.6%, dystocia 0.97% and pyometra 0.24%. It is indicated that anoestrus and retention of placenta after calving was most hazardous cause of infertility whereas the metritis and repeat breeder were the second line of consequence. RD had shown significantly higher incidence in low BCS (${\leq}2$) than that of fair (2.5) and very good (${\geq}3{\sim}3.5$). In conclusion, the highest RD especially anoestrus and retention of placenta is very alarming for reproductive loss which might be needed further research to identify the specific cause of these disorders for establishment a profitable dairying and dairy population.

A CASE REPORT ON PRIMARY INCISOR TREATMENT USING OPEN-FACE STAINLESS STEEL CROWN (Open-face Stainless Steel Crown을 이용한 유전치의 치료에 대한 증례보고)

  • Kim, Jong-Min;Choi, Hyung-Jun;Lee, Jae-Ho;Choi, Byung-Jae
    • Journal of the korean academy of Pediatric Dentistry
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    • v.24 no.4
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    • pp.781-787
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    • 1997
  • In spite of the improvements of the techniques in the field of preventive dentistry, many children still present with extensive destruction of primary anterior teeth. Not only the practioner must consider the pulp state of the primary incisor, but also restore the form, function and esthetics of the tooth. Restorative treatment of primary incisor tooth requires durability, retention and esthetics. Stainless steel crowns used in restoring primary anterior teeth is retentive and durable in comparison with the composite resin, celluloid crown. But they are not esthetic. To enhance the esthetics of the anterior stainless steel crown without reducing its superior retention, an open-face stainless steel crown has been suggested. Several authors have suggested cutting away the labial portion of the stainless steel crown and placing the composite resin in that area. By following this technique, the practioner can prepare a retentive, durable, and esthetic restoration for primary teeth which have suffered from extensive loss of teeth structure. In addition, the single missing primary anterior teeth can be successfully restored by soldering the stainless steel crown together. Open-face stainless steel crown is indicated in the areas of large interproximal lesions involving incisal edge, crown fracture with pulp exposure and congenital malformation of the teeth. By this technique, the practioner can restore primary anterior teeth successfully regardless of the amount of remaining tooth structure, bruxism habit and presence of attrition. In this case, rampant caries with extensive loss of tooth structure and single missing of primary anterior tooth hart been successfully treated with open-face stainless steel crown.

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Effect of pretreatment conditions on quality characteristics and antioxidant activity in pak choi (Brassica rapa L. ssp. chinensis)

  • Jin-Hee Choi;Hyun-do Ahn;Hae-Yeon Choi
    • Food Science and Preservation
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    • v.30 no.6
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    • pp.969-982
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    • 2023
  • This study evaluated the impact of blanching pak choi stems and leaves in various solutions (distilled water, 2% NaCl, and 2% citric acid) at 100℃ on their quality characteristics. The highest stem heating loss was observed in the sodium chloride solution (S-NB) at 15.10% (p<0.001), and the highest leaf heating loss was in L-NB at 11.44% (p<0.001). No significant variation was found in the moisture content of both stems and leaves. Relative to the control, the L value (lightness) of the stem decreased while the b value (yellowness) increased (p<0.05). In the leaves, the a value (redness/greenness) and b value increased in L-CB, whereas they decreased in other groups (p<0.05). S-NB exhibited the highest true retention (TR) of total polyphenol content (TPC) in stems (p<0.01) and the highest TR of total flavonoid content (TFC) as well (p<0.001). For leaves, the highest TR of TPC and TFC was in L-WB (p<0.001). In terms of antioxidant activity, S-NB in stems and L-WB in leaves showed the highest scavenging activity measured by DPPH and ABTS+ assays (p<0.001). Microorganisms were absent in all pretreatment groups but present in the control. The results suggest that blanching pak choi stems in 2% NaCl solution and leaves in water optimally preserves biologically active compounds and nutrients.

Effects of Fouling and Scaling on the Retention of Explosives in Surface Water by NF-the Role of Cake Enhanced Concentration Polarisation (지표수 조건의 나노여과공정에서 파울링 및 스케일링이 화약류 물질 잔류에 미치는 영향 연구 - 케익층 형성 및 농도분극 영향 분석)

  • Heo, Jiyong;Han, Jonghun;Lee, Heebum;Lee, Jongyeol;Her, Namguk
    • Journal of the Korean GEO-environmental Society
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    • v.16 no.4
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    • pp.13-22
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    • 2015
  • The combined impact of Dissolved Organic Matter (DOM) fouling and inorganic ($CaSO_4,Ca_3(PO_4)_2$) scaling on the retention of TNT (2, 4, 6-Trinitrotoluene), RDX (Hexahydro-1, 3, 5-trinitro-1, 3, 5-triazine) and HMX (1, 3, 5, 7-Tetranitro-1, 3, 5, 7-tetrazocane) explosive contaminants by nano-filtration membrane were studied, since organic fouling and salt scaling are the major limitations for membrane filtration. Results reported here indicate that DOM fouling layer with a humic acid does not necessarily lead to an immediate loss of permeate flux but can result in a severe impact on the flux loss when both humic acid and inorganic scaltants were presented simultaneously. The $Ca_3(PO_4)_2$ mixed with humic acid showd most sever flux loss (42%) compared to that of only humic acid presence (8%). It could be a result that the scaling formation of the NF membrane was dominated by cake layer formation of DOM and it was along with pore blocking by the formation of crystals inside the porous active matrix of the NF membrane. In addition, these results indicated that the membrane selectivity of the explosives retention trended correlated with respect to increasing explosives size (listed by MW) based on greater steric interactions and followed the order (MW, g $mol^{-1}$; removal, %): HMX (296.15; 83%) ${\gg}$ RDX (222.12; 49%) ≋ TNT (227.13; 32%). Because the scaling and fouling layer could lead to a additional cake-enhanced concentration polarisation effect, the retention of explosives with the presence of humic acid in the feed solution and inorganic scaling formation on top of an organic fouling layer do not differ substantially retention from that of pure DI feed and NaCl solution.

Effects of Wearing Support Panty Stocking on Thermoregulatory Responses When Exposed to the Cool Environment (서늘한 환경 노출시 고탄력 팬티스타킹 착용의 온열생리적 효과)

  • 이종민
    • Journal of the Korean Society of Clothing and Textiles
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    • v.24 no.5
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    • pp.696-701
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    • 2000
  • Stockings are considered to be excellent in retention of heat in cool weather. This study was to investigate the physiological effects of wearing support panty stocking when exposed to the cool environment from mild environment. Five healthy female college students wearing(ST) or not wearing(NST) support panty stocking, rested at 25$\pm$1$^{\circ}C$, 50$\pm$5% R.H. and were exposed to 18$\pm$1$^{\circ}C$, 50$\pm$5% R.H. for 90 minutes. The results obtained were as follows: Rectal Temperatures were lower in ST than in NST at both environments. Skin temperatures in ST were revealed higher at $25^{\circ}C$, but lower at 18$^{\circ}C$ than in NST. Heat production and total weight loss didn't show significant difference between ST and NST. Total thermal conductance from the body to the environment was higher in ST than in NST at 18$^{\circ}C$. It was suggested that wearing support panty stocking would keep the body warm in mild environment, but facilitate heat loss from the body in cool environment.

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