• Journal of the Korea Fashion and Costume Design Association
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• v.7 no.3
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• pp.113-127
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• 2005

From the ancient times, incense was used for various usages including a means of beauty expression with flavor, a medicine for disease treatment and a device for religious event or ritual. The period of T'ang was the times when cultural and material exchanges with foreign countries were very actively made under the political openness of the Chinese nation. Here the exchanges were made mainly through inland trade, called Silk Road(絲綢之路) and marine trade routes, Incense Road(香料之路). This indicates that incense was one of the main items actively traded at that time. In addition, literatures of the T'ang period show that in the Chinese nation, a wide range of classes from the imperial family to the public used incense for many different purposes. This suggests that the culture of incense was deeply prevailed and very socially significant in T'ang. This study investigated social factors that promoted the incense culture of T'ang and the applications and types of incense widely used in the period of T'ang. First, influential religions and the openness of sex culture were main social factors that made incense culture flourish in the period of T'ang. Above all, two main religions of the Chinese nation, Buddhism and Taoism became secularized under political protection by the imperial family. As Buddhism was popularized, the Buddhist ritual of incense burning made a contribution to making public incense culture. Providing its doctrines of eternal youth and eternal life, Taoism necessarily used incense to form a Taoistic climate. The flourishment of the foresaid religion in T'ang added more fuel to that of incense culture in the Chinese nation. The openness of sex culture brought about the Inauguration of the empress, improvement in female position and free relationships between man and woman. It was accelerated by sexology as a method of eternal youth provided by Taoism. The opened culture also developed the culture of kibang where female entertainers called kinyeo consumed lots of incense for decoration and sexual desire stimulation. These open climates of T'ang society made a great contribution to making incense culture, especially for decoration, prevailed throughout the Chinese nation. Second, types of incense prevailed and widely used in the period of T'ang included olive incense, germander(廣藿香), olibnum(乳香), myrrh Resinoid(沒藥), jia Xiang(甲香), clove(丁香) and Shen xian(沈香), all of which were imported from foreign nations and had various applications. Specifically, olive incense, germander(廣藿香), olibnum(乳香) and myrrh Resinoid(沒藥) were used for religious purposes while, jia Xiang(甲香), clove(丁香) and Shen xian(沈香) for the purposes of religion and decoration. In conclusion, a number of social factors including political, religious and medical purposes and the openness of sex culture set fundamentals on which the culture of incense was extensively developed and established as a social trend in T'ang. In the Chinese nation, incense culture was not just an option for taste, but a part of life style social members needed to know. People of T'ang not only enjoyed incense mainly for purposes of religion, pleasure and make-up, but also had the wisdom to know various effects of incense, curiosity about such new things and the will to imitate and pursue alien culture, resultantly flourishing incense culture. Thus the culture of incense represented many social aspects of T'ang.

• The Journal of Korean Society for Radiation Therapy
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• v.15 no.1
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• pp.1-9
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• 2003

I. Purpose The multileaf collimator(MLC) has many advantages, but use of the MLC increased effective penumbra and isodose undulation in dose distribution compared with that of an alloy block. In this work, we introduced the HD-270 MLC, which can improve the above disadvantages of MLC, and reported its feasibility study. II. Method and Materials The HD-270 MLC is a technique which combines the use of the existing Siemens multileaf collimator(3D MLC) with patient translation perpendicular to the leaf plane. The technique produces a smoothed isodose distribution with the reduced isodose undulation and effective penumbra. To assess the efficacy of the HD-270 technique and determine the appropriate resolution, a polygonal shaped MLC field was made to produce field edge angles from 0 degree to 75 degree with a step of 15 degree. Each HD-270 group was generated according to the allowed resolution, i. e., 5, 3, and 2mm. The experiment was carried out on Primus, a Siemens linear accelerator configured with HD-270 MLC. The total 60 MU of 6 MV photon beam was delivered to X-Omat film(Kodak, USA) at a SAD of 100 cm and 1.5 cm depth in solid water phantom. Exposed films were scanned by Lumiscan75(LUMISYS) and analyzed using RIT113 software(Radiological Imaging Technology Inc., USA). To test the mechanical accuracy of table movement, the transverse, longitudinal, and vertical positions were controlled by a consol with ${\pm}5\;mm,\;{\pm}4\;mm,\;{\pm}3\;mm,\;and\;{\pm}2\;mm$ steps, and then measured using a dial gauge with an accuracy of 0.001 inch. During the experiments, the table loaded with about 50Kg human phantom to simulate the real treatment situation. III. Results The effective penumbra and isodose undulation became larger with increase the resolution and field edge angle. The accuracy of the table movement on each direction is good within the ${\pm}1\;mm$. IV. Conclusion Clinical use of the MLC can be increased by using of the HD-270 MLC which complements to the disadvantages of the MLC.

• The Journal of Korean Society for Radiation Therapy
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• v.18 no.1
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• pp.1-5
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• 2006

Purpose: IMRT quality assurance(Q.A) is consist of the absolute dosimetry using ionization chamber and relative dosimetry using the film. We have in general used 0.015 cc ionization chamber, because small size and measure the point dose. But this ionization chamber is too small to give an accurate measurement value. In this study, we have examined the degree of calculated to measured dose difference in intensity modulated radiotherapy(IMRT) based on the observed/expected ratio using various kinds of ion chambers, which were used for absolute dosimetry. Materials and Methods: we peformed the 6 cases of IMRT sliding-window method for head and neck cases. Radiation was delivered by using a Clinac 21EX unit(Varian, USA) generating a 6 MV x-ray beam, which is equipped with an integrated multileaf collimator. The dose rate for IMRT treatment is set to 300 MU/min. The ion chamber was located 5cm below the surface of phantom giving 100cm as a source-axis distance(SAD). The various types of ion chambers were used including 0.015cc(pin point type 31014, PTW. Germany), 0.125 cc(micro type 31002, PTW, Germany) and 0.6 cc(famer type 30002, PTW, Germany). The measurement point was carefully chosen to be located at low-gradient area. Results: The experimental results show that the average differences between plan value and measured value are ${\pm}0.91%$ for 0.015 cc pin point chamber, ${\pm}0.52%$ for 0.125 cc micro type chamber and ${\pm}0.76%$ for farmer type 0.6cc chamber. The 0.125 cc micro type chamber is appropriate size for dose measure in IMRT. Conclusion: IMRT Q.A is the important procedure. Based on the various types of ion chamber measurements, we have demonstrated that the dose discrepancy between calculated dose distribution and measured dose distribution for IMRT plans is dependent on the size of ion chambers. The reason is small size ionization chamber have the high signal-to-noise ratio and big size ionization chamber is not located accurate measurement point. Therefore our results suggest the 0.125 cc farmer type chamber is appropriate size for dose measure in IMRT.

• Journal of Environmental Impact Assessment
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• v.29 no.3
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• pp.157-181
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• 2020

Sediments from rivers, lakes and marine ports serve as end points for pollutants discharged into the water, and at the same time serve as sources of pollutants that are continuously released into the water. Until now, the contaminated sediments have been landfilled or dumped at sea. Landfilling, however, was expensive and dumping at sea was completely banned due to the London Convention. Therefore, this study applied contaminated sedimentation soil of 'Royal Palace Livestock Complex' as soil purification method. Soil remediation methods were applied to pretreatment, composting, soil washing, electrokinetics, and thermal desorption by selecting overseas application cases and domestically applicable application technologies. As a result of surveying the site for pollutant characteristics, Disolved Oxigen (DO), Suspended Solid (SS), Chemical Oxygen Demand (COD), Total Nitrogen (TN), and Total Phosphorus (TP) exceeded the discharged water quality standard, and especially SS, COD, TN, and TP exceeded the standard several tens to several hundred times. Soil showed high concentrations of copper and zinc, which promote the growth of pig feed, and cadmium exceeded 1 standard of Soil Environment Conservation Act. In the pretreatment technology, hydrocyclone was used for particle size separation, and the fine soil was separated by more than 80%. Composting was performed on organic and Total Petroleum Hydrocarbon (TPH) contaminated soils. TPH was treated within the standard of concern, and E. coli was analyzed to be high in organic matter, and the fertilizer specification was satisfied by applying the optimum composting conditions at 70℃, but the organic matter content was lower than the fertilizer specification. As a result of continuous washing test, Cd has 5 levels of residual material in fine soil. Cu and Zn were mostly composed of ion exchange properties (stage 1), carbonates (stage 2), and iron / manganese oxides (stage 3), which facilitate easy separation of contamination. As a result of applying acid dissolution and multi-stage washing step by step, hydrochloric acid, 1.0M, 1: 3, 200rpm, 60min was analyzed as the optimal washing factor. Most of the contaminated sediments were found to satisfy the Soil Environmental Conservation Act's standards. Therefore, as a result of the applicability test of this study, soil with high heavy metal contamination was used as aggregate by applying soil cleaning after pre-treatment. It was possible to verify that it was efficient to use organic and oil-contaminated soil as compost Maturity after exterminating contaminants and E. coli by applying composting.

• Clinics in Shoulder and Elbow
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• v.13 no.2
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• pp.244-249
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• 2010

Purpose: Our goal of this study was to compare the mechanism of injury and the clinical outcomes between the non-traumatic and traumatic type II SLAP lesions. Materials and Methods: From January 2007 to May 2009, the sunjects of this study were 27 patients who had undergone operations for isolated type II SLAP lesions. The lesions were classified according to Burkhart's method. The lesions that were located on the anterior-superior labrum were classified as type I, those lesions located on the posterior-superior labrum were classified as type II and those lesions located on the anterior-posterior labrum were classified as type III. The clinical outcomes were evaluated by the UCLA score and the KSS score preoperatively and postoperatively. Results: Of the 27 cases, 16 cases were traumatic and eleven cases were non-traumatic. In the traumatic group, there were 12, 2 and 2 cases of type I, type II and type III, respectively (p=0.013). In non-traumatic group, there were 2, 6 and 3 cases of type I, type II and type III (p=0.026). Anterior lesions were more frequent in the traumatic group and posterior lesions were more frequent in the non-traumatic group. For the clinical outcomes, the mean preoperative UCLA score and KSS score were 18 (range: 14~23) and 48 (range: 32~76), respectively, and the postoperative UCLA score and KSS score were 32 (range: 28~33) and 86 (range: 71~92), respectively, in the traumatic group, and the preoperative UCLA score and KSS score were 21 (18~25) and 58 (41~68), respectively, and the postoperative UCLA score and KSS score were 29 (26~31) and 81 (68~89), respectively in the non-traumatic group. There was no significant statistical difference of clinical outcomes between the two groups (p=0.317, 0.405). Conclusion: In this study, the anatomical feature of type II SLAP lesion was associated with a trauma mechanism. Therefore, a trauma mechanism must be considered when planning the surgical treatment for type II SLAP lesions.

• Childhood Kidney Diseases
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• v.1 no.2
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• pp.117-122
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• 1997

Purpose : To clarify the clinical findings, laboratory findings and disease course of EP complicated with CAPD and to find out possible predisposing factors to EP. Methods : The medical records of 34 children who underwent CAPD at our hospital between Jan. '94 and Dec. '96 were retrospectively reviewed. The clinical features and laboratory findings of EP were analyzed, and several parameters were evaluated as predisposing factors of EP. Results : EP developed in 7(21%) out of 34 patients. The major symptom of EP was turbid peritoneal fluid without fever, abdominal pain or disturbance of drainage in all cases. The microbiologic culture studies of the peritoneal fluid resulted negative in all cases. Patients with peripheral blood eosinophilia before insertion of CAPD catheter had higher risk of EP than those without eosinophilia (P=0.002). And peripheral blood eosinophilia, noted after insertion of hemodialysis catheter in cases with previous hemodialysis before CAPD, showed significant correlation with the occurrence of EP (P=0.016), too. However, there was no significant correlation between peripheral blood eosinophilia noted after insertion of CAPD cathter and the occurrence of EP. Identification of eosinophils in peritoneal fluids was more accurate with cytospin analysis. Conclusions : An early and accurate diagnosis of EP in patients with CAPD can prevent unnecessary treatment of antibiotics. Peripheral blood eosinophilia before insertion of CAPD catheter is one of the predisposing factors of EP. And, cytospin analysis of peritoneal fluid is an accurate method for diagnosis of EP.

• Childhood Kidney Diseases
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• v.4 no.2
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• pp.111-119
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• 2000

Purpose : Henoch-$Sch{\ddot{o}}nlein$ purpura(HSP) is a common pediatric discase presenting most frequently with skin, gastrointestinal, joint and renal manifestations. The prognosis of HSP is mainly determined by the involvement of the kidney, but prognostic markers have not been established. We evaluated the patients who have HSP nephritis with nephrotic syndrome. Method : Clinical manifestations and laboratory findings were observed and analyzed in 34 cases with HSP which were manifested by nephrotic syndrome hospitalized at Kyung Hee university Hospital during the period from Jan. 1990 to Dec. 1998. Results : 1) Male to female ratio was 1.3:1, and mean age at onset was 8.3 year. 2) Mean duration from symptom onset to renal biopsy was 10.5 weeks. 3) Proportion of patients presenting with acute nephritis was 32.4$\%$, gross hematuria 17.6$\%$, microscopic hematuria 50$\%$. 4) The findings of renal biopsy were 20 cases of grade II, 11 cases of grade III, 2 cases of grade I, 1 case of grade IV according to classification by ISKDC. 5) Patients with grade I were recovered with no residual defect, but patients with grade IV shows active renal disease(states C). Conclusion : Among the 디le patients with Henoch-$Sch{\ddot{o}}nlein$ purpura accompanying nephrotic syndrome, more aggressive treatment might be needed in patients showing crescents formation on renal biopsy. A prospective study will be needed to explore the progression of this disease.

• Childhood Kidney Diseases
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• v.18 no.1
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• pp.36-41
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• 2014

Purpose: Urinary tract infections (UTIs) are the most common source of bacterial infections in infants and young children. Accurate diagnosis and treatment is important because of their association with renal scarring, which can lead to complications. Urine endothelin-1 (ET-1) is the major renal isoform produced and released by renal mesangial cells in response to glomerular injury. This study aimed to investigate whether urinary levels of ET-1 can be used as a biomarker for UTI diagnosis. Method: We conducted a prospective study using medical records of 70 patients below the age of 18 years, who visited Chung-Ang University Hospital from July 2012 to July 2013. We classified the patients into the UTI and control groups based on urine culture studies. The UTI group was further divided into upper and lower UTI groups using 99m-Technetium dimercaptosuccinic acid scintigraphy. Urine ET-1 was measured using enzyme linked immunosorbent assay with 0.3 mL urine. Results: The UTI and control groups were comprised of 45 and 25 patients, respectively. Mean urine ET-1 levels were significantly higher in the UTI group than in the control group ($1.41{\pm}0.35$ pg/mL vs. $0.33{\pm}0.07$ pg/mL, P =0.04). There was no significance difference in the quantitative value between the upper and lower UTI groups (P =0.552). There was no correlation between urine ET-1 and serum C-reactive protein (Pearson correlation [R]=0.24), urine ET-1 and serum white blood cell count (R=0.19). Conclusion: Our study suggests that urine ET-1 can be used for early diagnosis of UTI in children.

• Journal of radiological science and technology
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• v.32 no.3
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• pp.313-323
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• 2009

Diffusion-weighted imaging (DWI) has been demonstrated to be a practical method for the diagnosis of various brain diseases such as acute infarction, brain tumor, and white matter disease. In this study, we used two techniques to examine the average signal intensity (SI) and apparent diffusion coefficient (ADC) of the brains of patients who ranged in age from 10 to 60 years. Our results indicated that the average SI was the highest in amygdala (as derived from DWI), whereas that in the cerebrospinal fluid was the lowest. The average ADC was the highest in the cerebrospinal fluid, whereas the lowest measurement was derived from the pons. The average SI and ADC were higher in $T_2^*$-DW-EPI than in FLAIR-DW-EPI. The higher the b-value, the smaller the average difference in both imaging techniques; the lower the b-value, the greater the average difference. Also, comparative analysis of the brains of patients who had experienced cerebral infarction showed no distinct lesion in the general MR image over time. However, there was a high SI in apparent weighted images. Analysis of other brain diseases (e.g., bleeding, acute, subacute, chronic infarction) indicated SI variance in accordance with characteristics of the two techniques. The higher the SI, the lower the ADC. Taken together, the value of SI and ADC in accordance with frequently occurring areas and various brain disease varies based on the b-value and imaging technique. Because they provide additional useful information in the diagnosis and treatment of patients with various brain diseases through signal recognition, the proper imaging technique and b-value are important for the detection and interpretation of subacute stroke and other brain diseases.

• Korean Journal of Organic Agriculture
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• v.17 no.4
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• pp.519-527
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• 2009

The main nutritional problem of sorghum$\times$sudangrass hybrid silage is low quality and dry matter (DM) contents. This experiment was conducted to evaluate whether field pre-wilting treatment of sorghum$\times$sudangrass hybrid silage increases DM content and forage quality of the silage. The experiment was a randomized complete block design with three replications. The treatments were consisted of five different wilting days: 0 day (direct cut silage), 0.5 day, 1 day, 2 days and 3 days. Sorghum$\times$sudangrass hybrid silage with pre-wilting showed low 4.00 pH values, however direct cut silage (control) showed a 4.30 value because of its high moisture content. The DM content of sorghum$\times$sudangrass hybrid silage with pre-wilting was high above 25.1% after 1 days, however that of direct cut silage had 17.6%. And the effluent of wilted silage was decreased with prolonged wilting period, but that of direct cut silage produced effluent of 183 mL/kg. Crude protein and ether extract with wilted silage were decreased, however crude ash was increased with prolonged wilting period. Silage with pre-wilting had higher acid detergent fiber (ADF) and neutral detergent fiber (NDF) contents than control silages, while its non-fiber carbohydrate (NFC) showed the opposite results. Lactic acid and total organic acid were increased with prolonged wilting period. For the palatability of dairy goat, silage with 2 days wilting was highest among silages. The experiment results indicate that wilted sorghum$\times$sudangrass hybrid silage could be recommended as effective method for reducing effluent, increasing pH and forage quality more than direct cut silage. Optimum pre-wilting day of sorghum$\times$sudangrass hybrid silage may be 1 days.