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갑상선 수질암과 갑상선 유두암의 충돌종양: 5예 증례보고
정호철,김제룡,안병현,이진선,장일성,김진만1,Ho Chul Jeong,Je Ryong Kim,Byong Hyon Ahn,Jin Sun Lee,Eil Sung Chang,Jin Man Kim1 대한갑상선-내분비외과학회 2014 The Koreran journal of Endocrine Surgery Vol.14 No.1
Medullary thyroid carcinoma and papillary thyroid carcinoma are different subtypes of thyroid carcinoma. The concomitant occurrence of medullary thyroid carcinoma and papil-lary thyroid carcinoma as a collision tumor is rare. We describe five cases of medullary and papillary thyroid carcinoma as a collision tumor. Four women and one man underwent thyroidectomy for treatment of thyroid cancer. Collision tumor was then detected by histopathologic finding. Genetic testing, point mutation of the BRAF gene or mutation of the RET gene was performed in three cases. However, only one case had point mutation of the BRAF gene. Exact diagnosis of this uncommon event is important because the strategies for treatment of papillary thyroid carcinoma and medullary thyroid carcinoma are different.
Acupuncture and Spontaneous Regression of a Radiculopathic Cervical Herniated Disc
Kim, Sung-Ha,Park, Man-Young,Lee, Sang-Mi,Jung, Ho-Hyun,Kim, Jae-Kyoun,Lee, Jong-Deok,Kim, Dong-Woung,Yeom, Seung-Ryong,Lim, Jin-Young,Park, Min-Jung,Park, Se-Woon,Kim, Sung-Chul KOREAN PHARMACOPUNCTURE INSTITUTE 2012 Journal of pharmacopuncture Vol.15 No.2
The spontaneous regression of herniated cervical discs is not a well-established phenomenon. However, we encountered a case of a spontaneous regression of a severe radiculopathic herniated cervical disc that was treated with acupuncture, pharmacopuncture, and herb medicine. The symptoms were improved within 12 months of treatment. Magnetic resonance imaging (MRI) conducted at that time revealed marked regression of the herniated disc. This case provides an additional example of spontaneous regression of a herniated cervical disc documented by MRI following non-surgical treatment.
Enhancement of cycle performance of Li–S batteries by redistribution of sulfur
Kim, Kwi Ryong,Yu, Seung-Ho,Sung, Yung-Eun The Royal Society of Chemistry 2016 Chemical communications Vol.52 No.6
<P>A practically available strategy is employed to improve the cycle life of lithium-sulfur batteries. The simple process of activation cycling at the polysulfide dissolution region leads to the partial dissolution of polysulfides and the redistribution of sulfur on the electrode. After 50 cycles, the modified activation-cycled sulfur cathode exhibits a capacity that is roughly double that of a cathode without activation cycling.</P>
Fabrication of pseudo-crystal nanostructures of TiO2 particles under UV-irradiation.
Kim, Young-Kwan,Yun, Seong-Hun,Lee, Myoung-Jae,Shin, Yong-Hun,Kim, Kyung-Min,Kim, Sung-Ryong,Lee, Seung Woo,Lim, Jung-Hyurk American Scientific Publishers 2009 Journal of nanoscience and nanotechnology Vol.9 No.12
<P>Colloidal titanium dioxide (TiO2) suspensions were synthesized by hydrolysis of titanium isopropoxide in the presence of acetic acid. When TiO2 colloids were subjected to bandgap excitation (ultraviolet [UV] irradiation), the colloidal solution exhibited yellow coloration, leading to the trapping of holes and electrons on the particle surfaces. The absorption spectra indicated a distinct absorption band in the UV and visible region. Dried-drop film of the UV-irradiated TiO2 suspension on the mica surface was characterized by scanning electron microscopy (SEM). SEM images showed that 'crystal-like' network structures of TiO2 nanoparticles had formed dramatically on the solid surface. The resulting networks ranged in size from 100 nm to 500 nm and had crystal-growth patterns, while also having almost similar rectangular shapes. It seems that the individual particles, with electron or hole scavengers such as oxygen in ambient conditions, make contact with a number of neighbors, thereby forming self-assembled three-dimensional nanoparticle-based pseudo-crystalline structures.</P>
A New Gerbera Cultivar "Pink Swan"; High-yielding Cultivar with Pink and Semi-double for Cut-flower
Sang Kun Park,Jin Hee Lim,Mi Seon Kim,Hyang Young Joung,Hak Ki Shin,Hae Ryong Cho,Hye Kyung Rhee 한국육종학회 2009 한국육종학회지 Vol.41 No.4
A new gerbera variety "Pink Swan" was released by the National Horticultural Research Institute (NHRI) in 2007. A cross was made between "Royal" with orange and single and 'Himalaya' with white and semi-double in 2004. After investigation of the characteristics for 4 years (from 2004 to 2007), it was selected specially for the use of cut-flower. "Pink Swan" is a vigorous medium-sized cultivar with pink (RHS R48D), yellow green center and semi-double. The average flower diameter is 10.6 cm. And inner ray floret and disc diameter is 5.99cm and 1.83cm, respectively. It produces a large yield with continuous supply of flowers and has adequate peduncle height. We believe that "Pink Swan" has a great potential for expanding cultivated area of domestic gerbera cultivar and increasing farmers-income.
Rheological properties of hydrogen fermented food waste
Kim, Min-Gyun,Sivagurunathan, Periyasamy,Lee, Mo-Kwon,Im, Seongwon,Shin, Sang-Ryong,Choi, Chang-Su,Kim, Dong-Hoon Elsevier 2019 International journal of hydrogen energy Vol.44 No.4
<P><B>Abstract</B></P> <P>Although rheological properties are essential in scaling up fermenters, there has been no report on hydrogen fermentation of organic solid wastes. In the present work, hydrogen fermentation of food waste (FW) was conducted at various substrate concentrations (10–50 g Carbo. COD/L) and operational pHs (4.5–6.5), and rheological properties were attained. High hydrogen production performance showing over 1.7 mol H<SUB>2</SUB>/mol hexose<SUB>added</SUB> was achieved at 10–40 g Carbo. COD/L and pH 5.5 and 6.0. The viscosity tended to increase with substrate concentration increase, and fermentation led to a significant reduction of viscosity. Before fermentation, zero viscosity and infinite viscosity of FW ranged 6.8–1274.1 mPa s and 2.2–58.1 mPa s, which were reduced to 10.4–346.2 mPa s and 1.1–5.3 mPa s after fermentation, respectively. Compared to substrate concentration, operational pH showed a less effect on rheological properties. At the similar volatile solids concentration range, hydrogen-fermented FW showed lower values of rheological properties than that of anaerobic digester sludge. Based on the agitation speed values assuring turbulent condition (complete mixing), the energy required for agitation can be reduced by 30–67% by lowering the applied agitation speed with fermentation time.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Shear thinning behaviour was found in all H<SUB>2</SUB>-fermented FW. </LI> <LI> Hydrogen fermentation led to a significant reduction of viscosity. </LI> <LI> Compared to substrate concentration, operational pH showed a little effect on rheological properties. </LI> <LI> H<SUB>2</SUB>-fermented FW showed lower rheological property values than those of digester sludge. </LI> <LI> Energy saving by 30–67% by slowing down the agitation speed with time. </LI> </UL> </P>