• Journal of the Korean Wood Science and Technology
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• v.43 no.1
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• pp.9-16
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• 2015

This study was carried out to investigate the effect of delignification on properties of lignocellulose nanofibers (LCNFs) prepared by wet disk-milling (WDM) after steam and ozone oxidation pre-treatments and their nanopaper sheets. Delignification treatment was effective to obtain fine morphology with uniform fiber diameter less than 35 nm without aggregation, and increased the specific surface area (SSA) and filtration time of LCNFs. In particular, SSA and filtration time of the LCNFs prepared by WDM after ozone pretreatment increased 1.5 and 5.4 times after further delignification. Delignification also increased whiteness and decreased the redness of nanopaper sheets. The highest color difference (41.9) before and after the delignification was obtained in LCNFs prepared by WDM after the steam pretreatment. Tensile properties of nanopaper sheets were also increased by further delignification. The highest tensile strength was found to be 142 MPa.

• Journal of the Korean Society of Radiology
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• v.83 no.5
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• pp.1175-1181
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• 2022

Progressive massive fibrosis (PMF) with atypical findings is often misdiagnosed as lung cancer. Atypical features of PMF have been described in some reports; however, these reports only introduced their cases with a short literature review. We report two cases of solitary PMFs with no underlying simple pneumoconiosis or rapid growth at atypical location that were mistaken for lung cancer. We also suggest the useful CT findings to aid in the differential diagnosis.

• Journal of the Korean Society of Radiology
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• v.82 no.5
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• pp.1346-1351
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• 2021

Mazabraud syndrome is a rare benign disease that is accompanied by polyostotic fibrous dysplasia and intramuscular myxoma. Malignant transformation of fibrous dysplasia occurs in approximately 1% of cases. To date, only eight cases of malignant transformation, of fibrous dysplasia to osteosarcoma, in Mazabraud syndrome have been reported worldwide. The authors report the first case of osteosarcomatous transformation in a patient with Mazabraud syndrome in the Republic of Korea, focusing on imaging findings.

• Journal of the Korean Society of Food Science and Nutrition
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• v.23 no.1
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• pp.120-124
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• 1994

Nine wind vegetables were analyzed for moisture, ash, crude protein, crude lipid and dietary fiber. Wild vegetables contained 33-53% of dietary fiber on a dry weight basis. Dalle (Allium monanthum) contained 49% total dietary fiber and 22% soluble dietary fiber and dodok(Codonopsis lanceolata) contained 55% total dietary fiber and 21% soluble dietary fiber. Wild 8% more dietary fiber than cultivated one. Water holding capacities of wild vegetables were higher than commercial wheat bran and soy fiber, but lower in oil absorption. When wild dodok and dalle were wet milled by blade grinding before sieving the dietary fiber content in dodok was increased from 55 to 83 % with increasing the dietary fiber content in dalle form 49% to 69%.

• Journal of the korean academy of Pediatric Dentistry
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• v.28 no.1
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• pp.171-174
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• 2001

This case describes a case of desmoplastic fibroma of the mandible. A 9-year-old boy was seen with a history of progressive swelling and expansion of the left mandible for one month period. Desmoplastic fibroma was diagnosed on histopathologic examination This report reviews the diagnostic criteria, differential diagnosis and surgical treatment of choice in brief of this uncommon primary bone tumor of the oral and maxillofacial region.

• The Journal of the Korean dental association
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• v.26 no.11 s.234
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• pp.1008-1012
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• 1988

구강점막에 발생하는 종양성 병변으로는 대표적으로 구강점막암(oral mucous membrane cancer), 유두종(papilloma),혈관종(hemangioma), 임파관종(lymphangioma),섬유종(fibroma)등이 있는데 이들 병변들은 구강내 협점막, 치은, 경구개, 연구개, 구강저, 혀 등에 궤양이나 증식성 병소로 나타나서 동통, 출혈, 치아동요, 종창 등의 증상을 유발시킨다. 이러한 병변들에 대한 명확한 치료와 예후를 결정하기 위해서는 무엇보다도 이들 병변들에 대한 정확한 소견에 근거한 진단이 우선되어야 할 것이다. 따라서 본 장에서는 정확한 진단과 치료를 위해 이들 병변들에 대해 소개하고자 한다.

• Journal of the korean academy of Pediatric Dentistry
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• v.38 no.3
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• pp.262-269
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• 2011

Ameloblastic fibroma is rare true benign mixed odontogenic tumor. Most of these tumors occur in the posterior region of the mandible under 20 years of age. It develops generally associated with unerupted tooth and grows slowly on the surface of alveolar bone, therefore interferes normal tooth eruption. These lesions rarely showing a little bony expansion, are usually asymptomatic and are discovered incidentally on routine dental exam. It is similar to amleoblastic fibroodontoma and ameloblastic fibrodentinoma clinically and roentgenographically but represents no dental hard tissue formation histologically. Enucleation and curettage of surrounding bone are generally recommended options for treatment. Even though there are some reports of recurrence and malignant transformation and more aggressive treatment options like block resection are suggested sometimes, but in most cases, recurrence is unusual because it is well encapsulated and easily separated from adjucent bony socket. In these cases, we did conservative treatment such as enucleation and curettage to the patients who were visited for ameloblastic fibroma associated with delayed eruption of lower first molar. After regular check-ups, we found relatively natural eruption process of combined teeth.

• The Journal of the Korean bone and joint tumor society
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• v.14 no.1
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• pp.62-67
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• 2008

Malignant degeneration of fibrous dysplasia is rare and involves transformation into osteosarcoma, fibrosarcoma and chondrosarcoma. The most frequent sites involved in malignant transformation were craniofacial bones, proximal femur, humerus, pelvis, tibia and scapula in a decreasing order of frequency. An 41-year-old man with a history of polyostotic fibrous dysplasia presented with increasing left arm pain. Plain radiograph showed expansile destructive lesion along the humeral shaft. As initial biopsy report was low grade chondrosarcoma, he underwent marginal resection. However, he developed local recurrence 7 month later and subsequent pathologic finding was chondroblastic osteosarcoma. We report one case of secondary chondroblastic osteosarcoma from polyostotic fibrous dysplasia initially misdiagnosed as low grade chondrosarcoma that caused fallacy in treatment strategy.

• Proceedings of the Korean Fiber Society Conference
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• 2002.04a
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• pp.211-214
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• 2002

셀룰로오즈/아민 옥사이드(NMMO) 수화물 계로부터 제조되는 Lyocell 섬유는 기존의 재생 셀룰로오즈 섬유에 비해 우수한 인장특성과 촉감을 가지고 있다. 특히 이것은 용매의 무독성, 재활용 및 부산물 억제와 같은 환경 친화적인 제조공정으로 인하여 새로운 섬유 소재로 부각되고 있다[1]. 그러나 높은 배향도와 피브릴간의 약한 결합력으로 인하여 섬유 표면의 과도한 피브릴이 형성되고 이는 염색가공시 많은 문제를 일으키는 것으로 알려져 있다. (중략)

• Proceedings of the Korean Fiber Society Conference
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• 1999.04a
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• pp.44-48
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• 1999