• Journal of the Korean Society of Clothing and Textiles
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• v.13 no.3 s.31
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• pp.252-258
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• 1989

The purpose of this study was to investigate the general Kasa. More specially, the objectives of the research was (a) to determine the reason why dyes the colour of kasa; (b) to examine the kinds of Kasa colour; (c) to provide the dyeing method of Kasa colour; (d) to clarify the prohibited colour and the permitted limit; and (e) to find which and why kasa colour in our country use. The reason why dyes the colour of Kasa are the following; (a) it differentiates between the white robe in the leading ascetic life of Buddhism at ones home and that of the entering the priesthood. (b) it protects the victim of robbery (c) it discards the attachment to the ownership (d) it lessens the burden of at alms. The kinds of Kasa's color consist of several one such as 증(cheung), 흑(heuk), 전(chun), 목란(mokran), and so on. The three colour among them use as the colour of kasa in the each vinaya pitaka. The dyeing method of kasa is composed of two ways; One is to dye the whole Kasa; the other is to dye the part of Kasa. Recently, in our country, the red which is the branch of kalasama is the leading colour of Kasa.

• Korean Journal of Microbiology
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• v.30 no.6
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• pp.519-523
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• 1992

The glucoamylase of Candida tsuubaensis was purified to homogeneity form culture filtrate by means of ultrafiltration, Sephacryl S-200 gel filtration and Sp-Sephadex C-50 chromatography. The purified enzyme was a glycoprotein with a molecular mass of approximately 50 kDa, which was a monomeric protein. Km values were 5.8 mg/ml for soluble starch and 0.04 mM for maltose. Glucoamylase also released only glucose from both pullulan and isomaltose. The analysis of amino acid composition revealed that the enzyme contained a high content of acidic and polar amino acids. In addition, Western blotting analysis indicates that C. tsukubaensis glucoamylase is resistant to glucose repression.

• Transactions of the Korean Society of Mechanical Engineers B
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• v.29 no.12 s.243
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• pp.1335-1343
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• 2005

The calibration technique of Time Resolved Laser Induced Incandescence was investigated both experimentally and numerically by using standard-sized carbon black particles for the instantaneous soot measurement at exhaust tail pipe in engine. The carbon black particles (19nm, 25nm, 45nm and 58nm) used in this study are similar, though not identical, to soot particle generated from flame not only in morphology but also in micro-structure. The amount of soot loading in flow was controled by a diluted gas (nitrogen) and was measured by the gravimetric method at exhaust pipe in calibrator. The successful calibrations of primary particle size and soot mass fraction were carried out at the range from 19nm to 58nm and from $0.25mg/m^3$ to $37mg/m^3$ respectively. And based on these results the numerical simulation of LII signal was tuned and the effect of an exhaust temperature variation on the decay rate of LII signal was corrected.

• Biomolecules & Therapeutics
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• v.2 no.1
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• pp.23-27
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• 1994

Wound healing and antibacterial effects of solcoseryl-micronomicin combination gel on an open wound were studied in mice. A simple model was designed for assessing the effects. Using the model, we compared the efficacy of a combined topical gel of solcoseryl and micronomicin with those gels of solcoseryl or micronomicin alone. From the results of our experiment, the wound healing effect of open wounds by treatment with the combination gel was significantly enhanced when compared with those by treatment with solcoseryl gel or micronomicin gel alone. And the antibacterial effect of the combination gel was higher than those of solcoseryl gel or micronomicin gel alone.

• Proceedings of the Korean Society of Applied Pharmacology
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• 1996.04a
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• pp.255-255
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• 1996

Flavonoids are the large class of plant-derived polyphenolic compounds with a broad spectrum of biological actions including anti-inflammatory, anti-allergic and anti-asthmatic activities. It has been reported that quercetin and some other flavonoids inhibit the histamine release from mast cells. Disodium cromoglycate, a kind of biflavonoid, have been used as a anti-asthmatic agent. Therefore, the following study was undertaken to characterize tile structure-activity relationships of flavonoids in the inhibition of histamine release, from IgE-sensitized mast cells. Flavonoid acetate were synthesized by addition of acetic anhydride to the flavonoids dissolved in pyridine. According In the Mota method, IgE-rich serum was made in rats sensitized with Pertussis vaccine and ovalbumin. Rat abdominal mast cells were harvested and purified over tile discontineous Percoll gradients, Mast cells were preincubated in RPMI with IgE-rich serum and further incubated with flavonoids. Histamine contents released from mast cells were determined fluorospectrophotometrically after stimulation with ovalbumin. (omitted)

• 한국연소학회:학술대회논문집
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• 2001.11a
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• pp.179-184
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• 2001

The characteristics of $NO-NO_2$ conversion and soot oxidation by corona discharge are investigated experimentally. The discharge current decreases with the increase of oxygen concentration and it increases more sharply for anode corona than for cathode corona as discharge voltage increases after corona onset voltage. $NO-NO_2$ conversion increases with the energy density of corona discharge and the addition of $O_2$ in a base $N_2$ gas. Soot oxidation occurs at approximately $480^{\circ}C$ in a mixture of 21% $O_2$, base $N_2$ gas, and enhances as temperature increases. The initiation temperature of soot oxidation advances greatly to about $280^{\circ}C$ with the addition of 300ppm $NO_2$, which is generated from the conversion of NO to $NO_2$ by corona discharge. CO is generated at higher temperature by about $50{\sim}100^{\circ}C$ than $CO_2$ in the process of soot oxidation.

• Biomolecules & Therapeutics
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• v.6 no.4
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• pp.378-382
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• 1998

In the previous screening on antidiabetic effect of Lycii fructus by glucose transport method using $N_2$-STZ diabeted rat model, each extracts showed the potent antidiabetic activity. We obtained three compounds isolated from the water fraction, EtOAc fraction and n-BuOH fraction of Lycii fructus in the present work and their structures were identified as 1-carboxy-N,N,N-trimethylmethanaminium hydroxide inner salt, 2,4(1H,3H)-pyrimidinedione and 3,3',4',5,7-pentahydroxyflavone-3-rutinoside . Among the constituents separated from Lycii fructus, 2,4(IH,3H)-pyrimidinedione, 3,3',4',5,7-pentahydroxyflavone-3-rutinoside and ascorbic acid were shown a remarkable antidiabetic effect.

• Proceedings of the KIEE Conference
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• 1996.07c
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• pp.1505-1507
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• 1996

In this study, $(Pb_{0.88}La_{0.12})(Zr_{0.40}Ti_{0.60})O_{2.97}$ (La/Zr/Ti=12/40/60) ceramic thin films were fabricated from an alkoxide-based by Sol-Gel method. PLZT stock solutions were made and spin-coated on the ITO-glass rubstrate at 4000[rpm] for 30[sec]. Coated specimens were baked to remove the organic materials at $400[^{\circ}C]$ for 10[min]. This procedure was repeated 5 times. The coated films were finally annealed at $450{\sim}700[^{\circ}C]$ for 1[hr]. The ferroelectric perovskite phases precipitated under the sintering of $550{\sim}700[^{\circ}C]$ for 1[hr]. Relative dielectric constant of the PLZT thin were increased with increasing the sintering temperature, the thin file sintered at $650[^{\circ}C]$ showed the highest value of 196. But in the PLZT thin film sintered at $700[^{\circ}C]$, relative dielectric constant was greatly decreased due to reacts between ITO electrode and glass substrate. In all thin films, the transmittance was more than 70[%] (at 632.8[nm]).

• Transactions of the Korean Society of Mechanical Engineers A
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• v.21 no.2
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• pp.223-231
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• 1997

A variety of approaches have been investigated for the application of spark-ignition engine knock control. The control method implemented, here as "Fuzzy Control", has the advantage of not requiring the knowledge of a mathematical model of the controlled object and is more robust and flexible than conventional approaches. Knock control in this study is performed using vibration signal which is measured with accelerometer attached to the cylinder block of a 1498cc four-cylinder spark-ignition engine. The experimental results obtained with this method are compared with those obtained with a knock interval controller and with those of a conventional controller. Those results illustrate better performance in torque than knock interval controller and conventional controller.ontroller.

• Korean Journal of Pharmacognosy
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• v.28 no.3
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• pp.138-142
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• 1997

To elucidate antidiabetic activity of Lycii Fructus. The extract of the Lycii Fructus was subjected to bioactivity-guided fractionation. The extract of the Lycii Fructus was partitioned suceesively with hexane, dichloromethane, ethylacetate and butanol. The butanol fraction, which is most abundant in the Lycii Fructus was subjected to silica gel column chromatography and resulted in seven fractions namely Fr. I - Fr. VII. Among tested several subfractions, Fr IV. Showed the highest antidiabetic activity in the streptozotocin-induced model rat.