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981.
Batteries: In Situ Formation of Conductive Metal Sulfide Domain in Metal Oxide Matrix: An Efficient Way to Improve the Electrochemical Activity of Semiconducting Metal Oxide (Adv. Funct. Mater. 31/2015)
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In Young Kim Jiyoon Seo Seung Mi Oh Sharad B. Patil Seong‐Ju Hwang 《Advanced functional materials》2015,25(31):4921-4921
982.
Vitamins: Surface Chemistry of Vitamin: Pyridoxal 5′‐Phosphate (Vitamin B6) as a Multifunctional Compound for Surface Functionalization (Adv. Funct. Mater. 30/2015)
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Jung Seung Lee Kyuri Kim Kihong Lee Joseph P. Park Kisuk Yang Seung‐Woo Cho Haeshin Lee 《Advanced functional materials》2015,25(30):4745-4745
983.
Organic Electronics: Self‐Assembled,Millimeter‐Sized TIPS‐Pentacene Spherulites Grown on Partially Crosslinked Polymer Gate Dielectric (Adv. Funct. Mater. 24/2015)
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Hocheon Yoo Hyun Ho Choi Tae Joo Shin Taiuk Rim Kilwon Cho Sungjune Jung Jae‐Joon Kim 《Advanced functional materials》2015,25(24):3795-3795
984.
Kyoungmi Hwang Kyungsik Lee Chungmok Lee Sungsoo Park 《The Journal of the Operational Research Society》2015,66(3):434-449
We propose two multi-class classification methods using a signomial function. Each of these methods directly constructs a multi-class classifier by solving a single optimization problem. Since the number of possible signomial terms is extremely large, we propose a column generation method that iteratively generates good signomial terms. Both of these methods obtain better or comparable classification accuracies than existing methods and also provide more sparse classifiers. 相似文献
985.
986.
Mi-Seon Jeong Yongsoo Hwang Chul-Hyung Kang 《Journal of Radioanalytical and Nuclear Chemistry》2011,289(1):287-293
A deep geologic disposal is the prime option for the long-term isolation of high-level radioactive waste (HLW) in many countries.
For deeply located repositories, a radionuclide released from a failed waste container moves through the engineered and natural
barriers before it reaches a biosphere. The pseudo-colloid which a radionuclide is adsorbed on a moving natural humic or fulvic
colloid can be generated in a fractured porous medium. The size of a colloid is in general in the order of a hundred nanometer
so that its migration velocity in a fracture is higher than that of a radionuclide due to the hydrochromatic effect. A large
colloid cannot diffuse easily into a surrounding rock. Also, there are many kinds of actinides and these actinides have decay
chains. In this analysis, the canonical form solution is derived for a pseudo-colloid and a solute in a fracture and a surrounding
rock with a realistic inlet boundary condition with multi-member decay chains. It is used the Fortran based a computational
code which uses a special subroutine for the inversion of Laplace transform. Consequently, the role of the pseudo-colloid
in the fractured porous medium is important and also their decay chains aren’t neglected in the performance assessment of
the HLW. 相似文献
987.
988.
Shin JH Kang JH Jin WM Park JH Cho YS Moon JH 《Langmuir : the ACS journal of surfaces and colloids》2011,27(2):856-860
Engineering of TiO(2) electrode layers is critical to guaranteeing the photoconversion efficiency of dye-sensitized solar cells (DSSCs). Recently, a novel approach has been introduced for producing TiO(2) electrodes using the inverted structures of colloidal crystals. This paper describes a facile route to producing ordered macroporous electrodes from colloidal crystal templates for DSSCs. Using concentrated colloids dispersed in a volatile medium, the colloidal crystal templates were obtained within a few minutes, and the thickness of the template was easily controlled by changing the quantity of colloidal solution deposited. Here, the effects of the structural properties of the inverse opal TiO(2) electrodes on the photovoltaic parameters of DSSCs were investigated. The photovoltaic parameters were measured as a function of pore ordering and electrode film thickness. Moreover, DSSC applications that used either liquid or viscous polymer electrolyte solutions were investigated to reveal the effects of pore size on performance of an inverse opal TiO(2) electrode. 相似文献
989.
A hypothesis concerning the exponential buildup of polyelectrolyte multilayer films prepared by layer-by-layer assembly has become widely accepted in the scientific community. This model was first introduced with experimental data in Langmuir. It was subsequently described in Proceedings of the National Academy of Sciences and extended and amended in papers in Langmuir and other journals. According to the "in and out diffusion" hypothesis, as it is called, or "common rule" of exponential multilayer film buildup, as it is widely regarded, "a diffusion-based buildup mechanism ... explains most of the exponential-like growth process of polyelectrolyte multilayers reported in the literature." The present work offers an alternative viewpoint to specific elements of the hypothesis and the model as a whole. 相似文献
990.
Cho S Jang JW Jung A Lee SH Lee J Lee JS Lee KH 《Langmuir : the ACS journal of surfaces and colloids》2011,27(1):371-378
We report a method for synthesizing zinc citrate spheres at a low temperature (90 °C) under normal atmospheric pressure. The spherical structures were amorphous and had an average diameter of ~1.7 μm. The amorphous zinc citrate spheres could be converted into crystalline ZnO nanostructures in aqueous solutions by heating at 90 °C for 1 h. By local dissolution of the zinc citrate spheres, nucleation and growth of ZnO occurred on the surfaces of the amorphous zinc citrate spheres. The morphologies and exposed crystal faces of the crystalline ZnO nanostructures (structure I: oblate spheroid; structure II: prolate spheroid; structure III: hexagonal disk; structure IV: sphere) could be controlled simply by varying the solution composition (solutions I, II, III, or IV) in which the as-prepared amorphous zinc citrate spheres were converted. The concentration of citrate anions and solution pH played a decisive role in determining the morphologies and exposed crystal faces of the crystalline ZnO nanostructures. On the basis of experimental results, we propose a plausible mechanism for the conversion of amorphous zinc citrate spheres into the variety of observed ZnO structures. 相似文献