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Search Results: 1 - 10 of 41700 matches for " HAN Yong "
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Titanium Rib Plate Technique for Huge Chest Wall Reconstruction  [PDF]
Yong Han Yoon
Surgical Science (SS) , 2011, DOI: 10.4236/ss.2011.26070
Abstract: Chest wall reconstruction after en-bloc tumor resection is very important to preserve functional mobility and to enhance the cosmetic effect. Because they are flexible and pliable, titanium plates are proposed to reconstruct the chest wall, even though such chest wall reconstruction has been performed in only a few cases worldwide. We present a case of a 49-year-old man with a chondrosarcoma arising from the left 1st rib, invading the manubrium, clavicle, 2nd and 3rd ribs, and the anterior segment of the left upper lobe. After wide resection, the chest wall was reconstructed using titanium rib plates and Marlex mesh- the Bovine pericardium sandwich type. The patient tolerated the pain well, and fourteen months after surgery, the chest wall was well preserved function mobility and improved pulmonary function test.
Analysis of magic lengths in growth of supported metallic nanowires
Yong Han
Physics , 2014,
Abstract: Metallic nanowires can exhibit fascinating physical properties. These unique properties often originate primarily from the quantum confinement of free electrons in a potential well, while electron-electron interactions do not play a decisive role. A recent experimental study shows that self-assembled Ir nanowires grown on Ge(001) surface have a strong length preference: the nanowire lengths are an integer multiple of 4.8 nm. In this paper, a free electron-gas model for geometries corresponding to the nanowires is used to analyze the selection of these preferred or magic lengths. The model shows that the inclusion of even numbers of free electrons in an Ir nanowire corresponds to these magic lengths once an electron spillage effect is taken into account. The model also shows that the stability of the nanowire diminishes with its increasing length, and consequently suggests why no long nanowires are observed in experiments. It is also shown that applying generic results for quantum size effects in a nanofilm geometry is not adequate to accurately describe the length selection in the rather different nanowire geometry, where the transverse dimensions smaller than the electron Fermi wavelength. Finally, the monatomic Au chain growth on Ge(001) surface is also analyzed. In contrast to Ir nanowires, the model shows that the stability of an Au chain strongly depends on its electron spillage.
A Crystalline Material Made from Oxidation of Vanadium Nitride via Foam Route  [PDF]
Yong Cheol Hong, Han Sup Uhm
Soft Nanoscience Letters (SNL) , 2013, DOI: 10.4236/snl.2013.34015
Abstract: Facile method of synthesizing organic-inorganic solid foam in complex structure is presented. The synthesis method is based on the use of neutral surfactant (1-hexadecylamine, C16H33NH2) as structure directing agent and inorganic salt (vanadium nitride, VN) as precursor. The foam containing C16H33NH2 has been synthesized by evolution of oxygen gas produced spontaneously from hydrogen peroxide through a viscous VN gel. The foam from the precursor of 0.5 gVN nanopowder grows gradually, reaching about 0.3 liters 10 minutes after excess addition of H2O2 and stirring. The ultralight, crystalline material made via foam processing was observed by XRD, SEM, TEM, and FTIR.
Improvements to the Fluoride Reactivation Method by Simple Organic Extraction for Retrospective Detection of Exposure to the Organophosphorus Nerve Agents in Human Plasma  [PDF]
Jin Young Lee, Yong Han Lee
International Journal of Analytical Mass Spectrometry and Chromatography (IJAMSC) , 2014, DOI: 10.4236/ijamsc.2014.23007
Abstract: A rapid and simple organic extraction method for the determination of the chemical warfare agent, isopropyl methylphosphonofluoridate (sarin, GB) in human plasma has been developed using gas chromatography-tandem mass spectrometry (GC-MS/MS). In the course of method development, several organic solvents have been screened and chloroform show a low background and increase signal to noise ratio of GB among other organic solvents. Especially, the organic extraction method of reactivated GB from the human plasma has a 30% greater recovery yield than solid-phase ex-traction (SPE). This simple extraction method was successfully applied to the trace analysis of nerve agents in human plasma in the 3rd Organisation for the Prohibition of Chemical Weapons (OPCW) confidence building exercise on biomedical sample analysis.
Supplementation of Probiotics on Feed Intake, Digestibility and Conjugated Linoleic Acid Contents in Plasma and Meat of Growing Goats
Pramote Paengkoum,Han Yong
Agricultural Journal , 2013,
Abstract: This experiment was performed with the purpose of investigating effect of additional blend of Saccharomyces cerevisiae and Lactobacillus acidophilus probiotics on growth, ruminal metabolism and plasma fatty acid profiles particularly Conjugated Linoleic Acid (CLA) in growing goats fed corn silage and selected the optimal levels of the probiotics for further study. Twenty-four growing crossbred (Thai native x Anglo-Nubian) goats that weighed (14.2±2.3 kg), aged about 6 months, were purchased and allocated to 4 treatments according to Randomized Complete Block Design (RCBD) with 6 goats in each treatment. The blocks were made by weight into heavy, medium and light goats and each of the treatments contained two goats from each of the blocks. The results displayed that g kg-1 W0.75 dry matter intake (p<0.05), average daily gain (g day-1) (p<0.01) and feed conversion (p<0.05) were increased. At the same time digestibility of neutral detergent fiber (p<0.05), ether extract, acid detergent fiber and CP (p>0.05) as well as that of dry matter and organic matter (p>0.05) also were increased. In the mean time, ruminal average pH unaffected, but the NH3-N and also plasma urea nitrogen (p<0.05), total volatile fatty acid (p>0.05) were raised, but propionic proportion (p<0.05) and butyric proportion (p>0.05) were reduced in concurrent with raise of acetic proportion and resultantly C2:C3 ratio (p>0.05). Protozoa number (p>0.05) was depressed contrasted to heighten total viable bacterial number. On plasma fatty acid profiles, total saturated fatty acids (p>0.05) was increased and contrasted with decrease of C15:0 (p<0.01), C16:0 (p>0.05) and C18-C22 polyunsaturated fatty acids (p<0.05 or p<0.01). In addition, the experiment proved that the supplemented probiotics was in force for heightening CLA (p<0.01); for raising desirable fatty acids (p<0.05); for reducing ratio of PUFA: SFA (p>0.05) and for raising ratio of n6:n3 (p<0.05).
2-Hydroxyethanaminium 2,4-dinitrophenolate hemihydrate
Yong Yan,Guoxia Han
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810031983
Abstract: In the title salt, C2H8NO+·C6H3N2O5 ·0.5H2O, the anions, cations and water molecules are linked via N—H...O and O—H...O hydrogen bonds, forming a three-dimensionl network.
Nuclear Power: Is It Blessing Or Disaster in East Asia?
Yong Han Kim
Iranian Journal of Public Health , 2012,
Disaster And Evacuation Guide: Is It Sufficient To Foreigners?
Yong Han Kim
Iranian Journal of Public Health , 2012,
Price Discovery, Competition and Market Mechanism Design
Fangliang Huang,Yong Han
Asian Social Science , 2009, DOI: 10.5539/ass.v4n6p122
Abstract: Based on the wide application of relevant classical and modern economic thoughts, this paper analyzed the implications of price discovery and competition, compared the market auto adjustment mechanism and the government control of economy, explored market failure and price distortion, and drew the conclusion of the necessity of market mechanism design which is especially helpful for the reform of transitional economies. We point out that market competition plays an important role in the process of price discovery. To promote the efficiency of price discovery, market competition can not be absent. But competition can not be the only solution to efficiency. Moderate government interference is needed in some circumstances. Optimal mechanisms should be designed to complement the incompleteness of competition.
Dynamically induced Fermi arcs and pockets: A model for the pseudogap in underdoped cupratesa
Choi Han-Yong
EPJ Web of Conferences , 2012, DOI: 10.1051/epjconf/20122300008
Abstract: We investigate the effects of the dynamic bosonic fluctuations on the Fermi surface reconstruction in two dimensions as a model for the pseudogap in underdoped cuprates. At energies larger than the boson energy ωb the dynamic nature of the fluctuations is not important and the quasi-particle dispersion exhibits the shadow feature like that induced by a static long range order. At lower energies, however, the shadow feature is pushed away by the finite ωb. The detailed low energy features are determined by the bare dispersion and the coupling of quasi-particles to the dynamic fluctuations. We present how these factors truncate the Fermi surface to produce the Fermi arcs or the Fermi pockets, or their coexistence. Our principal result is that the dynamic nature of the fluctuations, without invoking a yet-to-be-established translational symmetry breaking hidden order, can produce the Fermi arc or Fermi pocket centered away from the (π/2, π/2) towards the zone center. This is discussed in comparison with the experimental observations.
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