• Journal of the Korean Ceramic Society
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• v.20 no.2
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• pp.153-160
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• 1983

This study was carried out to research the change of mineral phases and the characteristics(apparent specific gra-vity water absorption firing shrinkage modulus of rupture thermal expansion and specific dielectric constant) of the sintered bodies manufactured by kaolin and limestone. Samples were composed of the same theoretical composition as it of anorthite and fired up to 145$0^{\circ}C$ Investigated the change and micro-structure of the mineral phases by XRD and SEM the characterisdtics of the sintered bodies by TMA Automatic Capacitance Bridge and etc. The results were as follow. 1. Reactions of sintering are occurred between 860-95$0^{\circ}C$ and 1200-138$0^{\circ}C$ and state of bloating is occurred at 1410-145$0^{\circ}C$ 2. For the inclusion of feldspar and its fine particles of materials the temperature of producing and collapsing is decreased. 3. Pseudo-wollastonite and gehlenite are formed about 95$0^{\circ}C$ 4. At 114$0^{\circ}C$ anorthite are begin to forming and increase continuously to 138$0^{\circ}C$. Above 141$0^{\circ}C$ content of anorthite are decreased. 5. The variations of bending strength with sintering temperature reflect similar trend of sintered contraction and in-crease continuously from 120$0^{\circ}C$. At 145$0^{\circ}C$ reached about 680kg/cm2. 6. Specific dielectric constant$($\varepsilon$_s)$ of specimen sintered at 141$0^{\circ}C$ is 7.12 and that value is most favorable.

• Journal of Welding and Joining
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• v.28 no.5
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• pp.80-85
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• 2010

This study focused on laser assisted machining (LAM) of silicon nitride ceramic that efficiently removes the material through machining of the softened zone by local heating. The effects of laser-assisted machining parameters were studied for cost reduction, and active application in processing of silicon nitride ceramics in this study. Laser assisted machining of silicon nitride allows effective cutting using CBN tool by local heating of the cutting part to the softening temperature of YSiAlON using by the laser beam. When silicon nitride is sufficiently preheated, the surface is oxidized and decomposed and then forms bloating, micro crack and silicate layer, thereby making the cutting process more advantageous. HIPSN and SSN specimens were used to study the machining characteristics. Higher laser power makes severer oxidation and decomposition of both materials. Therefore, HIPSN and SSN specimens were machined more effectively at higher power.

• The Journal of Internal Korean Medicine
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• v.42 no.6
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• pp.1331-1340
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• 2021

A 42-year-old patient with functional dyspepsia had suffered from early satiation and postprandial fullness for 1 year despite Western medicine treatment. We treated her with the Spleen Daoyin method, along with acupuncture, moxibustion, and herbal medicine and scored her symptoms using a 4-point Functional Dyspepsia-related Quality of Life (4p-FD-QoL) questionnaire, the Gastrointestinal Symptom Rating Scale (GSRS), and a visual analogue scale (VAS). A 7-day Spleen Daoyin treatment decreased her 4p-FD-QoL score from 61 to 51, with a marked decrease in the emotional part (18 to 10). Her GSRS score did not change, but her bloating score decreased from 3 to 1. Her VAS score decreased from 6.6 to 4.3 for upper abdomen discomfort, but lower abdomen discomfort was unchanged. The patient showed high compliance and satisfaction with exercise therapy and reported no adverse events. Spleen Dayoin may be a useful therapy for functional dyspepsia, especially when accompanied by psychological problems.

• Journal of the Korean Crystal Growth and Crystal Technology
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• v.17 no.6
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• pp.277-282
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• 2007

The artificial lightweight aggregate (ALA) was manufactured using coal bottom ashes produced from a thermoelectric power plant with clay and, the sintering temperature and batch composition dependence upon physical properties of ALA were studied. The bottom ash (BA) had 13wt% coarse particle (>4.75mm) and showed very irregular shape so should be crushed to fine particles to be formed with clay by extrusion process. Also the bottom ash contained a many unburned carbon which generates the gas by oxidation and lighten a aggregate during a sintering process. Plastic index of green bodies decreased with increasing bottom ash content but the extrusion forming process was possible for the green body containing BA up to 40wt% whose plastic index and plastic limit were around 10 and 22 respectively. The ALA containing $30{\sim}40wt%$ BA sintered at $1100{\sim}1200^{\circ}C$ showed a volume specific density of $1.3{\sim}1.5$ and water absorption of $13{\sim}15%$ and could be appled for high-rise building and super-long bridge.

• Journal of the Korean Crystal Growth and Crystal Technology
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• v.18 no.6
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• pp.258-263
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• 2008

The fine aggregates of below 2 mm size was fabricated using by the vertical furnace in which the aggregates could be sintered at floating state and its physical properties were analyzed. The liquid formed at the surface of specimens sintered at $1200{\sim}l300^{\circ}C$ induced a gas in core to expand so the denser shell and porous core could be produced. The C series specimen fabricated by crushing an extruded body had an irregular shape and sharp edges but those became spheroidized by bloating due to gas expansion inside. The fine aggregates fabricated in this study was as light as floating in the water and had an apparent density of $0.68{\sim}1.08$. The absorption rate was proportioned to a porosity showing that the pores in core was not closed completely. The properties of fine aggregates fabricated in vertical furnace were similar with those of in an electric muffle furnace but the sticking-together phenomenon by surface fusion was not occurred in the vertical furnace. The aggregates fabricated in this study had a little lower impact resistance than that of natural aggregate but satisfied the unit volume weight standard specified in KS.

• The Journal of Internal Korean Medicine
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• v.26 no.3
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• pp.641-651
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• 2005

It is well known that functional dyspepsia is one of the most common diseases. Functional dyspepsia, as defined by Rome I and II criteria, is a known and important gastrointestinal disorder. Symptoms of functional dyspepsia are postprandial fullness, postprandial discomfort, epigastric bloating, epigastric lump sensation, early satiety, nausea, vomiting, regurgitation, eruction, hunger pain, postprandial epigastric pain, heartburn, soreness and anorexia. Treatment of these symptoms are recorded in the Donguibogam(東醫寶鑑). This study is a comparative study between initial medical examination and end of medical treatment with LJTG mentioned in the Donguibogam. After treatment with LJTG, patients showed improvement in all symptoms associated with functional dyspepsia, including general condition. The results of this study suggest that LJTG is an effective treatment for functional dyspepsia.

• The Journal of Korean Medicine
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• v.41 no.3
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• pp.173-179
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• 2020

Objectives: This study aims to report a case of hot flush-type rosacea improved by oral administration of Baekho-tang. Methods : The patient visited our clinic due to hot flash symptom on April 16, 2020. Based on the symptoms of hating heat, bloating, sweating, and thirst, traditional medicine Baekho-tang was prescribed. Results : After 5 days of taking Baekho-tang, the symptom score of hot flush improved significantly from 8 to 3. About a week later, most of the symptoms, including hot flush, edema, and burning sensation almost disappeared. After treatment, the follow-up process was conducted for about a month, and it was confirmed that the flushing of the face did not recur and remained improved. Conclusions : After a week of Baekho-tang administration, hot flush, burning sensation, edema and other symptoms associated with rosacea improved overall.

• The Korean Journal of Food And Nutrition
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• v.31 no.5
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• pp.640-646
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• 2018

Cassia obtusifolia L. is commonly used as medicinal foods to treat gastrointestinal disease in many countries. This study evaluated the anti-constipation effects of ethanolic extract of Cassia obtusifolia L. in rats with loperamide-induced constipation. Diffferent concentrations of ethanolic extract of Cassia obtusifolia L. (0, 10, 250, and 500 mg/kg) was administered to rat orally once daily for 3 weeks following loperamide treatment. Six-week-old Sprague-Dawley rats (N=25) were randomly divided into five groups: normal control and experimental groups and injected loperamide intraperitoneally to induce constipation in the latter four experimental groups. Following the induction of loperamide-induced constipation, a marked decrease was observed in the fecal weight and water content discharged for over 1 week and intestinal transit time while an increase was observed in the number of fecal pellets remaining in the colonic lumen as compared with the normal control group. These conditions were significantly alleviated following the administration of the two doses (250 and 500 mg/kg) of ethanolic extract of Cassia obtusifolia L. when compared to the loperamide-treated (constipation control) group. More specifically, the number of fecal pellets in the colon was 3, 5, 4, 2.8, and 1.2 in the five groups, respectively and the corresponding GIT ratio was 70.77, 56.59, 58.67, 66.81, and 72.10%, respectively. The fecal water content, transit distance, and GIT ratio in the high-dose treatment group were significantly higher than that in the medium-dose treatment group, but a significant decrease in the number of fecal pellets in the colon. In conclusion, the Cassia obtusifolia L. extract is suggested to have beneficial effects as a therapeutic and preventive strategy to alleviate constipation and to relieve the symptoms of constipation such as pain, flatulence, distention, bloating, and unpleasant taste.

• Korean Journal of Adult Nursing
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• v.19 no.2
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• pp.237-247
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• 2007

Purpose: This study was a randomized single-blind trial of whole versus split-dose PEG solutions for colonoscopy preparation to compare the patient compliance, quality of bowel cleansing, and endoscopist's satisfaction. Methods: The participants were recruited from outpatients who planned to receive colonoscopy of C hospital in Busan. Sixty participants were randomly assigned to receive either a spit-dose group(n=30) consuming $2{\ell}$ of PEG solution twice, or a whole-dose group(n=30), consuming $4{\ell}$ of PEG solution once. These participants completed the questionnaire to assess their compliance before colonoscopy. The quality of bowel cleansing was assessed using the Ottawa Scale with the endoscopist who was blinded to the type of preparation, and their satisfaction by using VAS. Results: The participants who did not completely consume $4{\ell}$ of PEG solution were less in split-dose than in whole-dose group (0% vs 13.3%). The split-dose group complained less about abdominal pain(t=2.644, p=0.009) and abdominal bloating(t=2.802, p=0.013) with a statistical significance. For the quality of bowel preparation, there were no significant differences in the bowel cleansing scores and the endoscopist's satisfaction between two groups. Conclusion: Colonic preparation with split-dose of PEG solution could be a more useful method for better patient compliance, with no significant impact on bowel cleansing quality.

• Food Science of Animal Resources
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• v.31 no.6
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• pp.893-898
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• 2011

Milk contains a number of nutrients required for human growth and development, such as disaccharide lactose which is significantly contained in milk and dairy products. About two thirds of world populations are reportedly suffering from lactose intolerance after drinking milk. Lactose intolerance is defined as a maldigestion of lactose in the human intestine with typical symptoms of abdominal pains, bloating, and diarrhea. In this study, incidence of lactose intolerance has been investigated for the elementary school children for 1 year from July, 2010 to June, 2011. It is found that about 70% of the total elementary students have joined the school milk program. Out of 636 total students that participated in this study, 449 were from the metropolis, 85 from middle-sized city, and 102 from the small town including rural areas (small town/rural areas). For distributions of lactose intolerance, 154 students (24.2%) were found to be positive among the total 636 subjects. Based on the size of the city, the symptoms were the most prevalent for the students in the small town/rural areas at 31.4% (32/102), followed by 30.6% (26/85) in middle-sized city, and 21.4% (96/449) in the metropolis. On the other hand, gender had no significant effect on the incidence of lactose intolerance, shown those for boys and girls were 24.8% (77/310), 23.6% (77/326), respectively. Further research is needed to confirm the correct incidence of lactose intolerance symptoms as the frequency is significantly affected by subject's digestive functions including irritable bowel syndrome.