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After passing through both agricultural and industrial phase, today society, due to technological revolution is becoming highly information oriented. This has resulted in the need for greater amounts of information in all fields of society. In step with this trend, office automation, home automation and factory automation are being promoted extensively. In turn these tendencies have been the main cause of grand scale disasters and the problem of ensuring safety in buildings has manifested itself as a problem for the whole society. However at present in most buildings the fire-fighting facilities and supervisory equipments are usually set-up separately, trailing greatly in areas of safety and efficency. Although there are numerous methods for improving security in office buildings, this study will focus on Intelligent Building and ultimately try to reach the goal of ensuring safety in buildings through interconnecting security systems with intellectualization of buildings. Untill now security systems were usually set-up and operated apart from the central supervision and control department which oversees and regulates the electricity, air conditioning, sanitary facilities and so on. But in Intelligent Buildings central supervisory, control system is introduced in which fire-fighting, crime prevention facilities, electricity, air conditioning, comunications devices and so on are all inter-connected organically, and thus each facility is comprehensively intergrated and interlocked. From the above viewpoint, planning of a system best suited to the requirements which have taken into consideration future usage and expansion on the basis of extensive professional knowledge and experience, must be the preconditions for the fulfillment of Intelligent Building with its highrate safety capabilities.
Bacteriological characteristics of C. pylori were studied with the isolates from the gastric biopsy specimens of gastroduoduoal patients of Gyeong-Sang National University Hospital. Isolates of C. pylori had developed the alpha hemolytic colonies on Mueller-Hinton agar (MHA) plates supplemented with the bovine blood at the ratio of 10% after the 3-day-incubation under 5% CO, at 37Y. The transition from curved bacilli to coccoid form were pronounced with the prolonged incubation, and lophotricous or amphitricous flagella was also identified by electron microscopy. Culture conditions of C. pylori including the kinds of media, optimum pH and temperature were investigated. C. pylori grew in the MHA with the addition of either serum, albumin or activated charcoal. These materials are assumed to play a role of detoxifying the toxic subs- tances in the media. And the resistance of C, pylori to the selective agents sur.h as triphenyl tetrazolium were tested, too. Biochemical properties and the antimicrobial resistance of the isolated C. pylori were examined. The isolates were resistant to lincomycin, nalidixic acid, trimethoprim, vancomycin, polymyxin B and 'sulfomethoxazole but sensitive to rifampin, streptomycin, kanamycin, gentamicin, penicillin, tetracycline, and chloramphenicol.
In order to evaluate the antiinflammatory effect of a therapeutic toothpaste containing TNA, ALCA, Vit-E, and MFP on gingivitis, the authors had examined the periodontal status of 240 female junior technical college students aged from 19 to 20, and divided into two groups, 120 students in one control group were given with cosmetic toothpastes, 1?0 students in the other experimental group with therapeutic toothpaste containing TNA, ALGA. Vit-E, and MFP. At the same time, all students were given with straight handled medium bristled toothbrush and directed to brush teeth with toothpaste and toothbrush offered. Thereafter, the gingival tissues were repeatedly examined in the 20th day, 40th day, 80th day, and 160th day. From the collected data, the percentages of gingival units, where the inflammatory signs in the initial periodontal examination disappeared, to the gingival units with the inflammatory signs in the initial periodontal examination and the relative potency were calculated and discussed. The obtained results were as follows: 1. The relative potency of therapeutic toothpaste versus cosmetic toothpaste was 1.11 : 1. 2. It is recommended that the dentifrice with more potent therapeutic effect should be developed.
In order to evaluate the desensitization effect of two kinds of therapeutic dentifrice, the authors had examined 90 hypersensitive teeth of 80 people aged from 20 to 60, who were divided into one control group and two experimental groups. The control toothpaste contained 0.76% SMFP and 45.0% of DCPD, and the one experimental toothpaste contained 5.0% of potassium nitrate, 0.76% SMFP, and 36.0% of DCPD, and the other one had 10.0% of strontium chloride and 38.0% CaCO₃. Baseline data was obtained by the checking of the responds of pulp activity before study, and the desensitizing effect was checked at each 4 weeks, 8 weeks and 12 weeks by electrical pulp tester. At the same time, the questionnaire was obtained in order to evaluate the subjective pain response before and after the study. All the examine were given with control and test toothpastes respectively and straight-handled soft and medium bristled toothbrushes and directed to use the toothpastes and toothbrushes offered. The obtained results were as follows. 1. The two kinds of therapeutic dentifrices containg strontium chloride and potassium nitrate had desensitizing effect of hypersensitive dentin. 2. The toothpaste containing strontium chloride reduced 77.27% of dentinal hypersensitivity and the other containing potassium nitrate reduced 82.61% of dentinal hypersensitivity in 12 weeks.
The purpose of this study was to test the abrasiveness of toothpastes marketing in Korea. The authors had measured the abrasiveness of 31 kinds of toothpastes, which were 18 domestic toothpastes and 12 foreign toothpastes. The abrasiveness was tested by surface profile method. Obtained results were as follows: 1. The abrasiveness of all tested toothpastes marketing in Korea was acceptable. 2. Abrasiveness of domestic and foreign toothpastes showed no significant variation. 3. It is recommended that the abrasiveness of toothpaste should be subscribed on package.