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      • 난소의 유피낭포에서 발생한 편평세포암종 1례

        최병관,정일균,최동수,목정은 慶熙大學校 1984 論文集 Vol.13 No.-

        A case of squamous cell carcinoma arising in dermoid cyst of the ovary is presented with a brief review of the literatures.

      • MAP(Magnesium-Ammonium-Phosphate) 및 응집침전을 이용한 축산폐수의 처리

        정병곤,김광균,김병효 국립7개대학공동논문집간행위원회 2003 공업기술연구 Vol.3 No.-

        Crystallization method such as struvite or hydroxyapatite formation is one of the promising methods in removing nitrogen and phosphorus simultaneously from biologically recalcitrant wastewater. In these methods, Alkali is necessary in increasing pH because crystallization is occurred in high pH condition. NaOH has been traditionally used as alkali agent. However, in view of economic point, lime is cheaper than NaOH. Thus, lime was used as alkali agent instead of NaOH in this experiment and the feasibility was studied. Using swine wastewater as influent, the feasibility of removing nutrient salts through struvite formation and the feasibility of using seawater or bittern as magnesium source in chemical coagulation process were evaluated. When using caustic lime as alkali agent instead of NaOH, struvite was not formed because calcium ion caustic lime react with phosphorus in wastewater before struvite formation. In case of using seawater or bittern as magnesium source, ammonia nitrogen was removed 53~74%, and 41~78%, respectively. This means that the main mechanism of ammonia nitrogen removal is not by struvite formation but by ammonia stripping. Based on the results obtained in this experiment, it is recommended that optimum seawater dosage for efficient coagulation was 5% by volume ratio.

      • KCI등재

        이소성 타액선에 의한 경부 누공 1예

        김병균,김문범,이재봉,오창근,장호선,권경술 대한피부과학회 2003 대한피부과학회지 Vol.41 No.3

        Ectopic salivary tissue is an uncommon etiology of a neck mass in an infant. It is due to anomalous embryologic development of salivary tissue. We have experienced a case of cervical fistula due to ectopic salivary gland in 3-year-old male. The discharge is saliva-like and related to meals. Histopathologically, mucinous acini are located in lower dermis and subcutaneous fat. When a cystic neck mass or fistula is present on cervical area especially in children, an ectopic salivary gland should be considered as one of the causes. (Korean J Dermatol 2003;41(3) : 394∼396)

      • KCI등재
      • Benzalkonium Chloride가 BPDM/HEMA계 접착제의 상아질 접착에 미치는 영향

        권병균 慶北大學校 齒科大學 1996 慶北齒大論文集 Vol.13 No.-

        양이온계면활성효과로 소독능을 가지고 있는 benzalkonium chloride를 BPDM/HEMA 계 접착제의 적용시 접착강도에 미치는 영향을 알아보기 위하여 소의 하악전치 160개를 40개씩 4개군으로 분류하여 순면의 상아질을 노출시키고 0%, 0.02%, 0.1% 또는 0.5% benzalkouium chloride를 10% 또는 32% 인산과 함께 상아질을 처리하거나, 인산 처리한 후에 상아질에 적용하여 재습윤시켰으며 BPDM/HEMA계 접착제인 One-Step^TM 과 NTG-GMA/BPDM계 상아질 접착제인 All-Bond^R 2를 사용하여 접착하였다. One-Step^™ 접착시편에서는 32% 인산을, All-Bond^R 2 접착시편에서는 10% 인산을 사용하였으며, 모든 시편을 Aelitefil^™(Bisco. Inc., U.S.A.) 복합레진으로 최종 접착시킨 후 인장접착강도를 측정하고, 파단면을 주사전자 현미경으로 관찰하여 다음과 같은 결과를 얻었다. 1. 산 처리후 benzalkonium chloride로 재습윤시킨 경우에 BPDM/HEMA계 상아질접착제인 One-Step^™의 접착강도가 유의하게 감소되었다 (p<0.05). 2. Benzalkonium chloride는 NTG-GMA/BPDM계 상아질접착제인 All-Bond^R 2의 접착강도에 유의한 영향을 나타내지 않았다 (p>0.05). 3. Benzalkonium chloride의 농도 및 적용 방법의 차이는 One-Step^™및 All-Bond^R 2 상아질접착제의 접착강도에 유의한 영향을 나타내지 않았다 (p>0.05). 4. 파단면에 대한 주사전자 현미경적 관찰에서 benzalkonium chloride의 농도나 적용방법에 관계없이 One-Step^™ 접착에서는 혼합성 파단양상이 우세하였으나 All-Bond^R 2 접착에서는 혼합성 및 부착성 파단양상이 혼재하여 나타났다. The purpose of this study was to elucidate the effect of benzalkonium chloride on tensile bond strength of BPDM/HEMA dentin bonding. One hundred sixty dentin specimens from freshly extracted bovine mandibular incisors were used, and 0, 0.02, 0.1 or 0.5% benzalkonium chlordie solution was applied to the dentin specimen with/after phosphoric acid. 32% phosphoric acid was used when the specimens were bonded with One-Step^™, a BPDM/HEMA system and 10% was used when bonded with All-Bond^R 2, a NTG-GMA/BPDM system. Aelitefil^™ composite resin was bonded to the pretreated dentin specimen with the use of All-Bond^R 2 or One-Step^™ dentin bonding agent. After the bonded specimens were stored in 37℃ distilled water for 24 hours, tensile bond strength was measured. The fractured dentin specimens were examined under the scanning electron microscope. The results were as follows: Benzalkonium chloride application after acid-treatment resulted in decrease of dentin bond strength of One-Step^™, a BPDM/HEMA system (p>0.05). Benzalkonium chloride application did not exert any influence on dentin bond strength of All-Bond^R 2, a NTG-GMA/BPDM system (p>0.05). There was no relationship between the concentration or application method of benzalkonium chloride and the dentin bond strength of One-Step^™ or All-Bond^R 2 (p<0.05). On SEM examination of the fractured dentin-resin interface, while mixed failure was prominent in dentin bonding with One-Step^™, adhesive and mixed failures were seen together in dentin bonding with All-Bond^R 2 regardless of the concentration and application method of benzalkonium chloride.

      • KCI등재

        전산화단층영상에서 절치관 및 순측 치조골 폭경에 관한 연구

        노양균,장현선,김병옥,김진수 대한구강악안면방사선학회 2006 Imaging Science in Dentistry Vol.36 No.3

        Purpose : To assess the width of the labial alveolar bone of the incisive canal and the width of the incisive canal on spiral computed tomographic images of the anterior portion of the maxilla. Materials and Methods : Study materials included 38 CT scans taken for preoperative planning of implant placement. Axial cross-sectioned image entirely showing the incisive canal was selected and scanned with 600 DPI resolution. The width of the labial alveolar bone of the incisive canal at an orifice to the oral cavity, middle portion, and an orifice to the nasal cavity and the diameter of the incisive canal at the middle portion were determined by two specialist using Digora for Windows 2.1. The statistical analyses were carried out using SPSS 12.0.1. Results : When the maxillary central incisors remained, the mean labial alveolar bone width were 6.81±1.41 mm, 6.46±1.33 mm, and 7.91±1.33 mm. When the maxillary central incisors were missed the mean width were 5.42±2.20 mm, 6.23±29 mm, and 7.89±2.13 mm. Conclusions : The labial alveolar bone width at middle portion and an orifice to the nasal cavity were of no statistical significant difference according to presence of the maxillary central incisors (P>0.05). The width between oral cavity and nasal cavity, middle portion and to nasal cavity revealed statistically significant difference (P<0.05).

      • Struvite 생성 공정을 이용한 도시폐기물 매립지 침출수 처리

        정병곤,김광균,김병효 7개 국립대학교 환경연구 논문집 공동발행 위원회 2003 공업기술연구 Vol.3 No.-

        Crystallization such as struvite or hydroxyapatite formation is one of the promising methods in removing nitrogen and phosphorus simultaneously from biologically recalcitrant wastewater. In applying these methods, Alkali is necessary in increasing pH because crystallization is occurred in high pH condition. NaOH has been traditionally used as alkali agent. However, in view of economic point, lime is cheaper than NaOH. Thus, lime was used as alkali agent instead of NaOH in this experiment and the feasibility was studied. Using leachate from landfill site of municipal solid waste as influent, the feasibility of removing nutrient salts through struvite formation and the feasibility of using seawater or bittern as magnesium source in chemical coagulation process were evaluated. When using caustic lime as alkali agent instead of NaOH, struvite was not formed because calcium ion caustic lime react with phosphorus in wastewater before struvite formation. In case of using seawater or bittern as magnesium source, ammonia nitrogen was removed 29-52%, and 36-56%, respectively. This means that the main mechanism of ammonia nitrogen removal is not by struvite formation but by ammonia stripping. Based on the results obtained in this experiment, it is recommended that optimum seawater dosage for efficient coagulation was 5% by volume ratio. It can be estimated that sodium inhibition will not be occurred at this concentration in biological wastewater treatment system.

      • SCIESCOPUSKCI등재
      • 비소성 준설토의 침강-압밀 거동 특성

        박윤균,박병수,정길수,유남재 江原大學校 産業技術硏究所 2004 産業技術硏究 Vol.24 No.A

        A series of column test with a silty marine soil mixed with Jumunjin Standard Sand were performed to investigate the characteristics of settling and consolidation of non-plastic dredged soils. Column tests were carried out by using the separable column to measure the grain size distribution of consolidated layer. Column tests were performed with changing the mixing ratio of Jumunjin Standard Sand to the silty marine soil, initial water content of slurry and initial height of slurry. Height of interface of slurry was monitored during tests and grain size distribution tests were carried out after finishing tests. Influencing factors on the particle segregation, eventually to the characteristics of settling and consolidation of non-plastic soil, were analyzed on the thesis of test results. As results of column tests, the mixing ratio of sand to the silty marine soil and the initial water content of slurry were known to affect the characteristics of settling and consolidation resulted in significant particle segregation of slurry. Initial height of slurry was found not to affect seriously to particle segregation.

      • 대학생들의 氣에 대한 의식 조사 연구

        홍성균,이성수,안규동,이병국 순천향대학교 산업의학연구소 2001 순천향산업의학 Vol.7 No.1

        Ki is emerging and getting popular as a new alternative therapy in new millenium. The purpose of this study was to investigate the understanding and experience of the Ki therapy for college students. 320(Male=138, Female=182) students were participate in this study. Study subjects were answered with prepared 8 questions for their personal opinion and experience about Ki therapy. Study variables about personal information such as sex, blood type, religion, health status, personality, parent's religion, parent' occupation and parent educational level were also collected. The results of this study were as follows; 1 Among all study students (n=320), 89% of students answered positively in the existence of Ki, whereas only 11% answered negatively. 2. Among all study students (n=320), 13% (n=41) of students had a chance to have a Ki therapy and among 41 students 93% of them had experienced real Ki in any kind of form. 3. Among 41 Ki experienced students, 32% of students felt a feeling of floating and flying, 25% of students felt a feeling of pulling from the back and 21% of students felt a feeling of warming and comfortable, 10% of students felt refreshment and 5% of students felt a feeling of dizziness, whereas only 7% of students did not feel anything from Ki therapy. 4. While 53% of students among 41 Ki experienced students experienced their Ki in Ki training center, 31% and 6% of students experienced in college or university and other place, respectively. 5. Among all study students, 89% of students thought that Ki therapy was useful and wanted to have Ki therapy in case of medical attention, whereas only 11 % of students did not want Ki therapy. 6. Among study students with positive thinking about Ki therapy, 24% and 23% of students thought Ki therapy useful for (endocrine and skin diseases) and chronic adult diseases such as hypertension, cardiac disease, diabetes and obesity, respectively, whereas 21% and 18% of study students thought Ki therapy useful for neuropsychiatric disease and digestive diseases, respectively. 7. Regarding to the reason of attraction of Ki therapy compared with other treatment methods, 51% of students answered that Ki therapy gave comfortable and easiness to mind and 42% of students answered that it did not need any kind of injection or medicine.

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