• Korean Journal of Fisheries and Aquatic Sciences
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• v.12 no.3
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• pp.125-130
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• 1979

In this paper, the noise pressure propagated in the air on account of the engine revolution of a stern trawler, Sae-Ba-Da(G. T. 2275.71) was measured at the check points No.1 through No.43 when the vessel was cruising, towing nets, and drifting. The experiment was carried out in the period from August 23 to October 22, 1978 at the locations of lat. $33^{\circ}$ 47'N, long. $127^{\circ}$ 34'E; lat. $34^{\circ}$ 24'N, long. $128^{\circ}$ 23'E; and lat. $6^{\circ}$ 01'N, long. $108^{\circ}$ 04'E. In case of cruising, noise on the weather deck came from funnel noise. The highest noise pressure was 92dB at observation point No.9 where tile noise pressure from main engine was 105dB when the engine was operated at 730rpm and $12^{\circ}$ sorely propeller pitch. The noise measured was reduced to 90dB at observation point No.9 when the screw propeller pitch was changed to $8^{\circ}$ that resulted in reduction of engine to 103dB. In case of towing net, the main engine revolution and screw propeller pitch was fixed at 730rpm and $8^{\circ}$ respectively. But the engine noise pressure was increased up to 106dB due to the towing resistance by 14 tons of the nets, and the noise pressure was 90dB at No.9 point. A hight noise was also generated from screw because of the towing reoistance and could be measurable even in the wall of the insulated freezing room. When the vessel was drifting: the noise pressure from the generator operated, at 720rpm was 100dB. This caused 87dB noise pressure at No.9 point. The noise pressure in the boarding or residence sections was 45 to 60dB in each case of cruisinrg towing net or drifting but it was so high as 82dB on the open deck that voice could hardly be heap.

• Journal of the Korean Chemical Society
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• v.10 no.2
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• pp.51-53
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• 1966

A new conventional method for the preparation of 5-iodo, chloro-, and bromo-6-methyluracil by Sandmeyer reaction was described. According to this procedure, 5-halo-6-methyluracils have been prepared in high yields (up to 70%) without any difficulties to obtain highly pure products. No appreciable competing reaction was observed.

• Archives of Craniofacial Surgery
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• v.21 no.2
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• pp.119-122
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• 2020

Stevens-Johnson syndrome (SJS) is a rare disease in which extensive toxic epidermolysis occurs after medication. Skin and mucous membranes are involved in about 90% of SJS cases, and webbing of mouth corners (microstomia) may occur when they are affected. Few reports have been issued on microstomia in SJS, and no consensus has been reached regarding treatment methods, timings, or results. We encountered a case of microstomia following SJS after ofloxacin medication in a 22-year-old woman treated by commissuroplasty using a lozenge-shaped excision. We present an appropriate correction method and surgical timing for microstomia following SJS.

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 2004.11a
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• pp.117-122
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• 2004

In order to improve the fuel economy by design change of automatic transmission, various technologies such as increased shift stages, slip control of lock-up clutch and compact and low-weight design have been developed. And also many OEMs have developed their own ATFs as a part of these automatic transmissions. In this study. to investigate the effects of ATF characteristics on fuel economy, we got the worldwide OEM ATFs and made some reference fluids. And physical properties, frictional characteristics and fuel economy using dynamometer test for these fluids were evaluated. From the investigation, it was found that viscosities of ATFs are correlated with fuel economy in dynamometer test and reducing the viscosities made it possible to obtain fuel economy.

• Tribology and Lubricants
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• v.25 no.6
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• pp.381-386
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• 2009

In general, a brake system of axle for heavy duty machine as a wheel excavator makes use of wettype multiple disk brakes. These disk bakes are very important parts of heavy duty machine because they are dvanced in durability and braking power, and can be designed compactly. Thus, we adesigned and made wettype multiple disk brakes of axle for the wheel excavator to be localization of these imported all. In this study, wet multiple disk brakes were made a comparative test with the 3 types materials of friction disk by the SAE No.2 dynamometer. The friction characteristics were measured and analyzed to decide a suitable material as wear depth of friction disk and dynamic and static friction coefficient on temperature of oil and applied pressure.

• Korean Journal of Veterinary Research
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• v.38 no.3
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• pp.467-473
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• 1998

The relative frequency and distribution of bovine chromogranin(BCG)-, serotonin-, somatostatin(SOM)-, and S-100 protein-immunoreactive cells in the proventriculus, gizzard and proventriculus-gizzard junction(P-G junction) of the duck(Anas platyrhynchos platyrhyncos, Linne) were studied using immunohistochemical methods. BCG-, and SOM-immunoreactive cells were detected in all ages of this study in the proventriculus and the gizzard, and BCG-immunoreactive cells were also detected in the P-G junction. SOM-immunoreactive cells were detected rarely on occasions only in 1 week, 2 weeks, 3 weeks and 9 weeks after hatching. But no S-100 protein-immunoreactive cells were detected in this study.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.16 no.3
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• pp.252-259
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• 2003

Hemorrhoid generally refers to a prolapsed nodule in the anus, and major symptoms are swelling, bleeding, pain. itching, and rectal discharge. For severe conditions, that is stage Ⅲ & Ⅳ, hemorrhoidectomy is commonly performed by surgeons. Yet, many patients are afraid of postoperative recurrence, and complications such as pain, wound bleeding, urinary retention, and dyschezia are not avoidable. We treated two patients with Stage Ⅱ and Ⅲ. and both of the cases were diagnosed as the hemorrhoid due to "moist and heat of the large intestine". After a couple of times of treatment only with SaAhm acupuncture, the symptoms were improved to the degrees where no discomfort could be found in the daily living.

• Proceedings of the Korean Society for Food Science of Animal Resources Conference
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• 2004.05a
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• pp.349-352
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• 2004

Twelve strains of Lactobacillus acidophilus isolated from feces of human or animal sources were tested for probiotic properties such as cholesterol assimilation, bile and acid tolerances, and CLA production. Although the cultures showed some variation with respect to each test, the 12 strains could be classified into 3 groups based on their ability to assimilate cholesterol. The cholesterol assimilation showed positive correlation with bile tolerance and negative correlation with acid tolerance. The cholesterol assimilation of L. acidophilus strains may not be related to the deconjugation activity, but may in fact be attributed to its bile tolerance. CLA production by lactic acid bacteria (LAB) exhibited a wide variation that ranged from 2.69 to 7.64 mg/g fat. CLA production of Bifidobacterium longum ATCC 15707 was the highest among the LAB tested, but there was no evidence for differences in CLA production between genus and species.

• Journal of The Korean Society of Clinical Toxicology
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• v.3 no.2
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• pp.107-109
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• 2005

Paraqaut, a widely used herbicide, is extremely toxic, causing multiple organ failure in human. Most of paraquat intoxications happen through oral administration. But there is no clinical data for parenteral paraquat intoxication. A 35-year-old male injected paraquat solution on his forearm. He visited emergency room within 10 minutes and was treated with tourniquet, incision, washing and suction. After eight days, the patient was discharged without respiratory symptoms and complications. In treatment of parenteral paraquat intoxication, first aid was very important and the treatment should include tourniquet, incision, washing and suction in order to delay absorptions.

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 2001.06a
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• pp.191-197
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• 2001

Performance requirements for automatic transmission fluids have been changing to reflect the design changes of automatic transmission. The major purpose for these design changes is to improve fuel economy and drivability. The use of special base oils like API Group III and IV base oils has increased in order to formulate high performance ATF. In this study. the effect of base oils characteristics on ATF performance is investigated, mainly regarding differences in frictional characteristics with deterioration. Moreover, low-temperature fluidity. oxidation stability. and seal compatibility are also compared for four different ATFs. From the investigation, it was found that the use of Group III and IV base oils in ATF has several benefits in low temperature viscosity. oxidation stability and SAE No.2 friction characteristics.