• 한국레이저가공학회지
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• 제12권2호
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• pp.26-30
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• 2009

Scanning Electron Microscopy (SEM) includes high voltage generator, electron gun, column, secondary electron detector, scan coil system and image grabber. Column includes electron lenses (condenser lens and objective lens). Condenser lens generates fringe field, makes focal length and control spot size. Focal length represents property of lens. Objective lens control focus. Most of the electrons emitted from the filament, are captured by the anode. The portion of the electron current that leaves the gun through the hole in the anode is called the beam current. Electron beam probe is called the focused beam on the specimen. Because of the lens and aperture, the probe current becomes smaller than the beam current. It generate various signals(backscattered electron, secondary electron) in an interaction with the specimen atoms. In this paper, we describe the result of research to develop the core elements for low-resolution SEM.

• 한국식생활문화학회지
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• 제9권1호
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• pp.95-103
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• 1994

Hospitalized patients' perceptions of the quality of hospital food and their importance were surveyed through questionnaires by 820(men 435, women 385) hospitalized patients in Seoul. The results are as follows: Men rated the size of food portion as being smaller, compared with women. The mean rating for nutrition of food was 3.24, freshness 3.15, taste 2.88, temperature 2.82; Among the food characteristics, nutrition was considered important by largest percentage(75.5%) of respondents, the taste ranked second(74.4%), and freshness was 62.2%; Appetite, atmosphere of ward were positively correlated(p<0.001) with rating of the taste, nutrition, and freshness, but length of hospitalization was negatively correlated (p<0.001) with them; Multiple regression analysis showed that appetite made the greatest contribution and length of hospitalization made the second greatest contribution. The third was atmosphere of ward, and the forth mood condition.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제29권3호
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• pp.191-194
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• 2003

Macroglossia can cause dentomusculoskeletal deformities, instability of orthodontic and orthognathic surgical treatment, and create masticatory, speech and airway management problems. To determine whether a reduction glossectomy is necessary, it will important to identify the signs and symptoms of macroglossia. Development of dentoskeletal changes directly related with tongue size, such as an anterior open bite or a Angle Class III malocclusion tendency, would indicate that reduction glossectomy may be beneficial. For reduction glossectomy, several techniques have been reported. However, in most techniques the tip of tongue is removed. So its excision causes the loss of most mobile and sensitive portion of the tongue, and creates ankylosed, globular tongue. To avoid such problems, central tongue reduction technique have been proposed. This article will introduce central tongue reduction for anterior openbite case associated with macroglossia.

• Nuclear Engineering and Technology
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• 제34권6호
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• pp.574-585
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• 2002

The microstructural characteristics and its related mechanical properties of RPV cladding have been investigated using small punch (SP) tests. SA508 Cl.3 RPV steel plates were overlay cladded with the type ER309L welding consumables by submerged arc welding process. Although the RPV clad material had a small portion of 5 ferrite phase, it still showed the ductile to brittle transition behavior The transition temperature was determined by the SP test and it depended on the content of $\sigma$ phase, specimen size, and determination methods. The fracture appearance of SP specimen was changed from circumferential to radial cracking as test temperature became low, and below the transition temperature region, ER309L cladding usually fractured along the 6 ferrite by the low temperature failure of ferrite phase.

• Journal of Plant Biology
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• 제4권1호
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• pp.21-24
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• 1961

The strains of fungus which belong to Coniothyrium genus were isolated from leaf spoot of Yucca. The isolated strain can grow easily and forms characteristic colonies on Saido's soy agar. There are definite differences, according to other authors, (By Miyake et Hara 1911) Pycnidio-spore are usually formed ellipsoidal, dark brown, 4$\times$2. 5-4. $O\mu$ in size, whereas isolated strains are globose, yellowish brown, 2.8-4.2$\mu$ in diameter. The positive inoculation test can be attained by burned petridish method, preserving it in incubator at 28$^{\circ}C$, and the pycnidio-spore can be reisolated from the inoculated portion. (Photo.7) Up to the present day there is no report for leaf spot of Yucca caused by Coniothyrium sp.. Comparing the writer's isolate with those fungi described(leaf spot of alloe, rose canker and elm canker etc.) hitherto, there are no accordance in the symptom and especially in morphological charactgers and Pathogenicitys.

• 한국동물위생학회지
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• 제35권2호
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• pp.153-157
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• 2012

A 7-year-old, castrated male dachshund dog with tumor of the spleen portion was referred to the Kangwon National University. The tumor removed surgically and tumor size was 6~7 cm. Histopathologically, this neoplasm was the presence of perivascular whorls of fusiform cells. The cells also arranged in interlacing bundles or storiform patterns. And this neoplasm consisted of spindle cells that often formed distinct whorls around a central capillary. Immunohistochemical analysis revealed multi-focally immunoreactivity for ${\alpha}$-smooth muscle actin, whereas not immunoreactive for desmin, S-100, von Willebrand factor. On the base of the histological and immunohistochemical results, this neoplasm was diagnosed as a canine hemangiopericytoma.

• 한국측량학회지
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• 제20권2호
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• pp.207-214
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• 2002

서해 연안의 개발은 갯벌의 감소로 해양생태계를 위협하고 있으며 산업화에 따른 대형 매립공사는 주변의 기상변화와 해상변화를 일으켜 해저지형 및 해안선에 많은 변화를 발생시키고 있다. 또한 선박의 안전한 입, 출항을 위한 항로에 영향을 주고 있다. 따라서 본 연구는 해도에 나타난 기준선인 최저저조면의 해양 기준면에 근거한 해안선(0 m선), 수심 2 m선. 그리고 지형도에 근거한 해안선(육지부분)으로 나누어 수치화하였으며 수치화 된 도면을 4개의 구역으로 구분하여 분석함으로써 인천국제공항 건설, 신도시 개발, 방조제 공사 등의 서해 연안 개발에 따른 해안과 해저의 변화 정도를 알아보았다.

• Journal of Chest Surgery
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• 제27권2호
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• pp.161-165
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• 1994

We have experienced a case of ventricular septal defect due to blunt chest trauma. A 22 year old male patient was admitted due to chest pain after Motor cycle accident on July 1st,1993. On 5th hospital day, sudden onset of dyspnea was noted and auscultation represented newly developed systolic murmur. A cardiac catheterization and Left ventriculogram revealed ruptured septum at the apical portion. Because there was open wound on anterior chest wall and congestive heart failure was medically controlled, the patient was discharged for elective operation. He was readmitted on August 14th, 1993.At operation, ventricular septal defect was found in apico-posterior muscular septal area, about 2.0 x 1.5 cm in size. The defect was repaired by double velour patch with interrupted suture and ventriculotomy was closed with Teflon felt. The patient`s postoperative course was uneventful and discharged 10 days postoperatively without complication. The patient have been followed up~ for 2 months. He is on functional class I with small amount of residual shunt at the ventricular septum.

• 한국식품조리과학회지
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• 제24권5호
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• pp.682-690
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• 2008

The principal objective of this study was to develop a standardized recipe for the large-scale production of Salbob and Ogokbob. The recipe was standardized as follows: we collected and recorded the amount of ingredients and production procedures currently being used by cooks in the contracted foodservice management company and hotel-based Korean restaurants. According to the food preferences of Koreans, we selected 2 kinds of rice; Salbob and Ogokbob. We developed a revised recipe and an evaluation form. We conducted a sensory evaluation with 30 panels, using a JAR (just-about-right) scale. We developed a standardized recipe for both kinds of rice. Yield, portion size, temperature, preparation time, equipment, cost, ingredients, weight of ingredients, method, and critical point were all components accounted for in the developed recipe. The factor method and the percentage method were proposed techniques for adjusting the recipe, and a direct measurement table for Salbob and Ogokbob was also devised.

• Animal cells and systems
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• 제16권3호
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• pp.254-259
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• 2012

The riffle beetle genus Leptelmis is newly recorded in the Korean fauna with descriptions of two new species, L. coreana, n. sp. and L. ochra, n. sp. Dorsal habitus and line-drawings of diagnostic characters are provided. The adults of L. coreana and L. ochra are similar to those of L. gracilis Sharp or L. parallela Nomura in general appearance, but can be distinguished by the absence of apical spurs on the middle and hind tibiae, light brown body color, smaller body size, and the shape of aedeagus apex. Leptelmis coreana can be distinguished from L. ochra by the absence of hindwings, lack of prominent humeri and wider elytra in posterior portion. Adults of both species occur in lowland streams and large rivers, but L. ochra were encountered relatively infrequently.