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Lee, Sang Moon,Won, Jong Min,Kim, Geo Jong,Lee, Seung Hyun,Kim, Sung Su,Hong, Sung Chang Elsevier BV * North-Holland 2017 Applied Surface Science Vol.419 No.-
<P><B>Abstract</B></P> <P>Palladium was added on the Ni-YSZ catalytic porous membrane by wet impregnation and electroless plating methods. Its surface morphology characteristics and carbon deposition properties for the low temperature steam methane reforming were investigated. The addition of palladium could obviously be enhanced the catalytic activity as well as carbon tolerance of the Ni-YSZ porous membrane. The porous membranes were evaluated by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), H<SUB>2</SUB> temperature-programmed reduction (H<SUB>2</SUB>-TPR), CH<SUB>4</SUB> temperature-programmed reduction (CH<SUB>4</SUB>-TPR), and O<SUB>2</SUB> temperature-programmed oxidation (O<SUB>2</SUB>-TPO). It was found that the Pd-Ni-YSZ catalytic porous membrane showed the superior stability as well as the deposition of carbon on the surface during carbon dissociation adsorption at 650°C was also suppressed.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Pd-Ni-YSZ porous membrane was prepared by electroless Pd deposition. </LI> <LI> Pd-Ni-YSZ (EPL) porous membrane showed the superior stability and carbon tolerance. </LI> <LI> Pd clusters can reduce the deposition of carbon on the Ni surface. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Characteristics of pilomatricoma in adults: A review of 137 patients
( Geo Han ),( Sung Hui Kwan ),( Jung Woo Lee ),( Jae Woo Ahn ),( Chil Hwan Oh ),( Hae Jun Song ),( Jiehyun Jeon ) 대한피부과학회 2015 대한피부과학회 학술발표대회집 Vol.67 No.2
Background: Pilomatricoma is known to occur most frequently in children. However, some researchers have reported a second peak in adults and the elderly. Objectives: To describe our experience with pilomatricoma in the adult population, specifically examining its clinical presentation, associated conditions, and future implication. Methods: This is a retrospective review of a tertiary hospital. Subjects included 137 patients with diagnosis of pilomatricoma between the years of 1994 and 2014 with ages more than 20 years old. Gender, duration of lesions, age at excision, number of tumors, tumor location, preoperative diagnosis along with associated neoplasmswere assessed. Results: A total of 137 patients were identified with 145pilomatricoma lesions. The median age at biopsy excision was 33 years old, with the oldest patient at 75 years. Majority of patients (51.1%) visited department of dermatology for their pathologically proven pilomatricomas and preoperative impression was correct in 35.2% of cases. Pilomatricomas on head and neck area predominated with 50.3% (n=73) of all pilomatricomas followed by the upper extremities with 35.2% (n=51). A male to female ration of 1:1.2 was observed. Conclusion: Pilomatricoma, thought to be a rare lesion, is one of the common causes of superficial masses even in adults. In general, clinical features of pilomatricomas in adults were similar with those of children when this study is compared with reports concerned with pilomatricomasin children.
Ancient Schwannoma: A Case Report
Lee Sang-Houn,Park Geo-seong,Jang Hyoung-gyu,Park Jung-soo,Lee Jong-Myong,Koh Eun-jeong,최하영 대한말초신경학회 2022 The Nerve Vol.8 No.2
Schwannomas are common, slow-growing benign tumors derived from Schwann cells lining the nerve sheath which are rarely developed from the scalp. There are several types of schwannoma; however, ancient schwannoma is a rare benign tumor. We present a case of a 36-year-old man with an approximately 3 × 2-cm palpable mass on the left parietal area of his scalp that slowly grew over 5 years. The tumor was surgically excised and confirmed by immunohistochemistry, indicating an “ancient schwannoma” different from a trichilemmal or dermoid cyst.
김거종 ( Geo Jong Kim ),이상문 ( Sang Moon Lee ),홍성창 ( Sung Chang Hong ) 한국공업화학회 2013 공업화학 Vol.24 No.6
In this study, we investigated the NH3 oxidation reaction characteristic over W/TiO2 catalyst in order to control NH3 generated from a thermoelectric power plant or incinerator. As a result, it was found that the optimal content of tungsten in W/TiO2 catalyst is 10 wt% and NH3 removal efficiency decreased due to decreasing specific surface areas of catalyst with increasing tungsten contents. When NH3 was injected more than 420 ppm, NH3 conversion decreased at the middle temperature range. In addition, NH3 conversion decreased due to the competitive adsorption of moisture and with increasing oxygen concentration, the NH3 conversion increased while the N2 selectivity decreased.
김상희(Sang-hee Kim),이거룡(Geo-Lyong Lee) 한국인체미용예술학회 2018 한국인체미용예술학회지 Vol.19 No.2
Herbs play a particularly important role in the modern world, where damage from food processing and drug overuse is a concern. Herbs are used for many purposes. The history of the oldest medicine in the world, especially the best of Indian Ayurveda and Chinese herbal medicine, is that researching the characteristics of herbal medicine not only helps to find better medicines and improves disease treatment tomorrow, but also greatly contributes to the development of medicine. Records from India indicate that ancient medicine used herbs to cure diseases. The Chinese medical system, too, has a very long history and has no external influence on the record. Ayurveda and traditional Chinese medicine have much in common. Both systems focus on patients rather than illnesses. Both systems aim to enhance health and improve the quality of life by fundamentally promoting health or disease through a holistic treatment strategy. Almost half of the plant materials used as medicine are similar. Furthermore, the two systems have a similar philosophy in the way they classify individuals, data, and diseases. Traditionally these system regard humans as the center of the universe, as an antenna that mediates the elements of the heavens and the elements of the earth. It was natural for people to look to nature for medicine when experiencing illness. Herbal remedies have been inherited from the ancient times and have been transformed along the ages by taking advantage of local and ethnic characteristics. The common points and differences of the herbs used in Chinese medicine and Ayurveda have been studied by this research. So we hope that oriental traditional medicine contributes to the world for one s health and beauty with modern medical in the ranks of integrated medicine. Therefore, a comparative study of the herbal medicine of Ayurveda in India and the Chinese traditional medicine is a study of the basis of world medicine and, more importantly, it is an important task as a pioneer role in leading the future of world medicine.
Shin, Geo-Myung,Lee, Jung-Woo,Choi, Soon-Mi,Moon, Seung-Hyun,Yoo, Sang-Im Institute of Electrical and Electronics Engineers 2015 IEEE transactions on applied superconductivity Vol.25 No.3
<P>We report the effects of barium-based perovskite particle inclusions of BaCeO<SUB>3</SUB> (BCO), BaZrO<SUB>3</SUB> (BZO), and YBa<SUB>2</SUB>SnO<SUB>5.5</SUB> (YBSO) on the thickness dependence of critical current density <inline-formula> <TEX-math notation='LaTeX'>$(J_c)$</tex-math></inline-formula> in metal organic deposition (MOD) -processed <inline-formula> <TEX-math notation='LaTeX'><TEX>$\mbox{YBa}_2\mbox{Cu}_3\mbox{O}_{7-\delta} $</TEX></tex-math></inline-formula> (YBCO) films on the SrTiO<SUB>3</SUB> (STO) single-crystal substrate. With increasing film thickness, while BZO-doped YBCO films show a serious degradation in <inline-formula> <TEX-math notation='LaTeX'><TEX>$J_\mathrm{c} $</TEX></tex-math></inline-formula>, caused by the interlayer at the boundaries of multicoated layers, BCO- and YBSO- doped films exhibit a significant enhancement of <inline-formula> <TEX-math notation='LaTeX'>$J_c$</tex-math></inline-formula> (77 K, self-field) over ∼1 μm thickness even though BCO- or YBSO-doped YBCO films have degraded <I>in-plane</I> textures compared with undoped films, implying that these perovskite dopants affect not only the pinning properties but also the growth of multicoated layers. The highest critical current <inline-formula> <TEX-math notation='LaTeX'><TEX>$(I_\mathrm{c} )$</TEX></tex-math></inline-formula> value over 440 A/cm-width, corresponding to <inline-formula> <TEX-math notation='LaTeX'><TEX>$J_\mathrm{c} $</TEX></tex-math></inline-formula> value of 1.8 MA/cm<SUP>2</SUP>, was obtained from the 2.4-<inline-formula> <TEX-math notation='LaTeX'><TEX>$\mu\mathrm{m}$</TEX></tex-math></inline-formula>-thick YBSO-doped film.</P>