• Transactions of the Korean Society of Pressure Vessels and Piping
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• v.13 no.2
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• pp.75-83
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• 2017

In severe accident conditions of light water reactors, the loss of coolant may cause problems in integrity of zirconium fuel cladding. Under the condition of the loss of coolant, the zirconium fuel cladding can be exposed to high temperature steam and reacted with them by producing of hydrogen, which is caused by the failure in oxidation resistance of zirconium cladding materials during the loss of coolant accident scenarios. In order to avoid these problems, we develop a multi-metallic layered composite (MMLC) fuel cladding which compromises between the neutronic advantages of zirconium-based alloys and the accident-tolerance of non-zirconium-based metallic materials. Cold pilgering process is a common tube manufacturing process, which is complex material forming operation in highly non-steady state, where the materials undergo a long series of deformation resulting in both diameter and thickness reduction. During the cold pilgering process, MMLC claddings need to reduce the outside diameter and wall thickness. However, multi-layers of the tube are expected to occur different deformation processes because each layer has different mechanical properties. To improve the utilization of the pilgering process, 3-dimensional computational analyses have been made using a finite element modeling technique. We also analyze the dimensional change, strain and stress distribution at MMLC tube by considering the behavior of rolls such as stroke rate and feed rate.

• The Journal of Pediatrics of Korean Medicine
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• v.15 no.1
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• pp.203-216
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• 2001

Objective : The purpose of this study is to investigite the more effective oriental medical treatment in pediatric diseases and its clinical applicability and chief complaints at oriental pediatrics in an area of busan and kyeungnam. Method : 884 new patients of theirs ages between 0 term 20 years who were treated at the pediatrics in Dong-Eui Oriental Medicine Busan Hospital from 1. 2000 to 29. Feb. 2001 Result : 1. The number of male cases was 514 (58%) and female cases 370 (42%) an so male cases 1.38 more than female. In age distribution, 0-1year: 242 patients(27.4%), 2-6years: 455 patients(51.4%), 7-20years: 187 patients(21.2%). 2. The Chief Complaint according to systemical division was Resparatory diseases (37.4%) for common cold, chronic cought, take a easy cold etc and the Digestive diseases(23.6%) for anorexia, diarrhea, abdominal pain etc and Nervous also Mental(11.8%) diseases for sezure, tic, etc and Allergic diseases(6.2%) for atopic dermititis, allergic rhinitis, etc and Physique diseases(5.4%) for short stature, leg pain, etc and Genaral symptoms(4.5%) for sweat profusely, headache, etc and Urinary diseases(3.3%) for bed wetting, frequently voiding, etc Discussion : 1. The Chief Complaint cannot be found a regional specificity 2. The oriental medicine treatment was still congnated as a way to improve the weakness by patients, also was widely noised about preventive medicine. In particular, Respiratory and Disestive diseases are dependent on the oriental medicine. 3. The new diseases and the new treatment method should be investigated as field of oriental medical treatment.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.29 no.8
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• pp.419-428
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• 2017

In this study, energy loss due to ventilation load in the dock system was analyzed through simulation. Also, flow generated in the dock system of the warehouse was measured using manufactured measuring devices. Numerical simulation was conducted by simulating the most common picking tasks by examining the actual working environment. Incompressible and unsteady turbulent flows were assumed, and the turbulence model was the k-e standard model. Proper grid was selected through grid dependency test. Measurement was conducted using Honeywell and Vaisala sensors, and flow and temperature inside the warehouse were measured and compared with simulation results to validate simulation. When comparing amount of loss occurring in two hours and amount of loss occurring in 15 minutes, docking time of the former was eight times longer but energy loss was 3.8 times lower. Ventilation load occurring during the initial period after opening docking system accounted for a large proportion of total ventilation load. Also, comparing the load when the dock was closed and the load when the truck was parked, ventilation load was significantly higher than load due to heat conduction from the wall. Therefore, in improving the docking system, it is effective to reduce the gap by improving compatibility of the docking system and truck, rather than wall material.

• Journal of Sasang Constitutional Medicine
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• v.26 no.3
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• pp.304-317
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• 2014

Objectives The purpose of this study was to find out whether there were differences of urticaria's disease aspect between patients classified into Sasang Constitution Types(SCTs) and whether those differences could be associated with Ordinary symptoms. Methods Medical records and questionnaires about 117 patients who visited one Korean medicine hospital due to urticaria were collated and statistically analyzed. Results 1) Ages 20 to 30, women, Soeumin(SE) and patients in conditions of chronic urticaria over 6 weeks were the majority among 117 patients in this study. Food and stress were most chosen as the main cause of urticaria. 2) Soyangin(SY) showed more severe symptoms of urticaria than other SCTs. In particular, the severity of pruritus, distribution of lesions and vulnerability to stress was statistically significant compared to other SCTs(p<0.05). SE expressed urticaria's symptoms at the medium-level of SY's and Taeeumin(TE)'s. TE exhibited relatively weak symptoms but TE only had slightly higher number of patients with angioedema compared to other SCTs. Taeyangin(TY) was only one case so more researches are needed. 3) In dispositional symptoms, SY had low quality of sleep and defecation. SE could not digest oily food well, felt dizzy and cold well, and had cold hands and feet. TE could eat and sweat much and tended to snore well. Conclusions In this study, urticaria had common cause of both stress and food in all SCTs but onset and severity of symptoms were different between SCTs. It could interpreted that these differences between SCTs were associated with ordinary symptoms native to each SCT.

• Preventive Nutrition and Food Science
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• v.8 no.1
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• pp.96-104
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• 2003

Ginger (Zingiber officinale Roscoe) is traditionally used as appetite enhancer, improver of the digestive system, antithusive, anti-cold, antipyretic, analgesic, and antiinflammation. In vitro evaluation using human lymphocyte cultures showed almost similar indication with those in in vivo mouse study, NK cell lysing activity was improved significantly. Proliferation activity of B and T cells, and CD3$^{＋}$ and CD3$^{＋}$CD4$^{＋}$T cell subset were better observed using oleoresin or gingerol and shogaol fractions. Although there were higher activities in gingerol, the improvement was almost equal to that by oleoresin. Shogaol did not show better improvement except at higher concentration. It could be concluded that treatment with single bioactive compound, such as gingerol, did not show significant effects compared to oleoresin, the crude extract. In human study, involving healthy male adult, the improvement of NK cell lysing activity was again demonstrated and even more apparent. The mechanism involved in the protection seemed to be through the antioxidant activity of gingerol. However, other mechanism underlying the improvement of NK cell lysing activity must be involved since this improvement seemed to be specifically toward NK cell activity. Since NK cells ave specific for the elimination of virus-infected cell and mutated cells, this positive effect on the immune system are very interesting. This work has also scientifically proved that the traditional beliefs that ginger had preventive effects on common cold appeared to be reasonable.

• Journal of Society of Preventive Korean Medicine
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• v.18 no.3
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• pp.81-90
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• 2014

Objective : We performed a clinical study to investigate pattern characteristics in persistent allergic rhinitis depending on Korean Medicine pattern questionnaire items as a pattern identification diagnostic tool. Method : 32 patients with persistent allergic rhinitis were asked to interview with doctor of Korean Medicine and perform the 4 pattern questionnaires(Cold-Heat Pattern, Phlegm Pattern, Yin Deficiency pattern, bloodstasis pattern). Then, we analyzed the response rate of each pattern questionnaires. Results : After diagnosis of Korean Medicine Doctor's pattern identification, 17 individual items have higher response rate, 7 of 17 items have a common tendency in allergic rhinitis. The other 8 of 10 items belong to Lung qi deficiency cold and Lung-spleen qi deficiency group, these have higher tendency of deficiency. In bloodstasis pattern questionnaires, we don't decide the tendency of patients with allergic rhinitis. Conclusion : The result may provide that we don't use Korean Medicine pattern questionnaires as a major tool in the pattern identification of allergic rhinitis. Continuous studies are needed to develop the standardized pattern identification diagnostic tool.

• Journal of Physiology & Pathology in Korean Medicine
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• v.17 no.4
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• pp.879-892
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• 2003

This thesis makes a review of symptoms and cause of the numbness in the literature. clinical case are studied and classified according to the Hyungsang of the patients. The followings are the conclusions: In case of Dam type persons, numbness is mainly caused by Fire with blood deficiency and so cured by tonifying the Jung and blood. In case of Bang Kwang type persons. it is generally caused by the deficiency of Ki and damp-phlegm and treated by reinforcing Ki and removing dampness. Persons of Jung and Hyal types are apt to be afflicted with numbness of deficiency symptoms which can be cured by tonifying the Jung and blood. Those of Ki and Shin types are inclined to get numb from the congestion and stagnancy and so treated by promotion the flow of Ki, dispelling stagnancy, resolving phlegm and promoting digestion. Numbness is common to the old people and women. The deficiency of blood and primordial energy is a cause of old people's numbness. Women get numb due to the pent-up feelings and emotional disturbance. The function disharmony of five Jang and six Bu makes the body lose the control of heat and cold or deficiency and excessiveness, which can be a cause of numbness. Especially the deficiency of the spleen results in numbness. When the special parts of the body become numb treatment must be decided after due consideration on which of the Jang and Bu or meridians is related to that affected area. In case of person with six meridian types. unbalance of Ki and blood leads the six atmospheric influences(wind, cold, heat, dampness, dryness and fire) get into the body through the most developed meridian and brings in numbness.

• Korean Journal of Acupuncture
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• v.36 no.1
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• pp.52-62
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• 2019

Objectives : The objective of this study was to investigate the effects of Zingiberis Rhizoma Pharmacopuncture(ZP) at GB30 and ST36 in neuropathic pain induced SD rats by the block of Transient Receptor Potential Vanilloid 1(TRPV1). Methods : Neuropathic pain in rats was induced by tibial and common peroneal nerve transection of right leg. The rat subjects were divided into 6 groups : normal(Nor, n=5), control(Con, n=5), neuropathic pain plus 2 mg/kg ZP injection at GB30 and ST36(ZP-A, n=5), 10 mg/kg ZP(ZP-B, n=5), 20 mg/kg ZP(ZP-C, n=5) and 0.45 mg/kg Tramadol(Tra, n=5). Three days after the surgery, injections were administered once a day for 17 days. Withdrawal response of neuropathic rats' legs were measured by stimulating the paw of Right leg with von frey filament, acetone and radient heat on day 3, 7, 11, 15, 19 after surgery. After all treatments were completed, c-Fos in the midbrain central gray and TRPV1 & TRPA1 of DRG(L5) were analyzed. Results : Groups ZP-B and ZP-C showed a meaningful decrease in the withdrawal response of mechanical allodynia, thermal hyperalgesia and cold allodynia compared to the control group(p<0.05, p<0.01, p<0.001). Groups ZP-B and ZP-C showed a meaningful decrease in the expression of c-fos and TRPV1 protein level compared to the control group(p<0.05, p<0.01, p<0.001). Conclusions : These results suggest that Zingiberis Rhizoma Pharmacopuncture at GB30 and ST36 could decrease mechanical & cold allodynia and thermal hyperalgesia by block the TRPV1 on the model of neuropathic pain.

• Journal of Korean Library and Information Science Society
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• v.52 no.2
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• pp.85-106
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• 2021

The purpose of this study is to analyze the form and color of the letter layout among 31 expression methods of official posters during the library week from 1964, for 57 years, and to propose the direction of poster production in the future by revealing what citizens prefer most by conducting a survey based on the results. As a result of analyzing the poster expression form for achieving the purpose of the study, the most common character layout was 'the top position of the character' in 13 out of 31 (41.9%), and in color, 'chromatic color' in 30 out of 31 (96.8%), and the temperature of color with 'cold color', 'fading color' and 'shrink color' in 18 out of 31 (58.1%), respectively. The results of the survey showed that the most preferred was 'top position of characters' for letter layout, and 'chromatic color' and 'cold color', 'advance color' and 'expansion color' were the most preferred for the color classification. Therefore, the character layout of the weekly poster for the library needs to be produced using 'the center position of the letter', and the colors need to be made using 'chromatic color', 'warm color', 'advance color' and 'expansion color'.

• The Journal of Internal Korean Medicine
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• v.42 no.2
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• pp.104-113
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• 2021

Introduction: The aim of this study is to report on the effectiveness of Korean medicine to improve symptoms of chemotherapy-induced peripheral neuropathy (CIPN). Some patients are treated with medication, but medications may have no effect in some patients. Korean medicine treatments have been used in such patients, but few reports exist. Case Presentation: A 58-year-old female patient with CIPN reported symptoms of bilateral limb pain and tingling sensations as well as cold sensations in bilateral lower legs and hands, fatigue, and bilateral limb weakness. To reduce the patient's symptoms, we provided Korean medical treatment, including herbal medicine (Uchashinki-hwan), acupuncture, and moxibation. To evaluate the results of this treatment, we used a numeric rating scale (NRS), the manual muscle test (MMT), the National Cancer Institute Common Toxicity Criteria for Adverse Events (CTCAE), and the European Organization for Research and Treatment of Cancer quality-of-life questionnaire about CIPN (EORTC-QLQ-CIPN20). After 49 days of treatment, the NRS scores decreased for bilateral limb pain and tingling, for bilateral lower leg and hand cold sensation, and for fatigue. The MMT results for the upper and lower extremities were improved. CTCAE Grade and EORTC QLQ-CIPN20 score were also decreased. Conclusion: According to these results, Korean medicine treatment may be considered an effective treatment for CIPN. Prospective studies are needed in the future to confirm and expand these findings.