10,114 research outputs found
Biodistribution of <sup>177</sup>Lu-CHOI-3.1 in mice bearing OHS xenografts.
No full textBiodistribution of 177Lu-labeled chimeric OI-3 IgG1 isotype antibody (CHOI-3.1) in tissues of interest in OHS xenograft-carrying nude mice. At each time point from three to six animals were used, with number of tumors ranging from five to twelve per group. Straight lines have been drawn to connect the data points. The error bars correspond to the standard error of the mean.</p
Recent Developments in 2D Nanomaterials for Chemiresistive-Type Gas Sensors
No full textTwo-dimensional (2D) nanostructures are gaining tremendous interests due to the fascinating physical, chemical, electrical, and optical properties. Recent advances in 2D nanomaterials synthesis have contributed to optimization of various parameters such as physical dimension and chemical structure for specific applications. In particular, development of high performance gas sensors is gaining vast importance for real-time and on-site environmental monitoring by detection of hazardous chemical species. In this review, we comprehensively report recent achievements of 2D nanostructured materials for chemiresistive-type gas sensors. Firstly, the basic sensing mechanism is described based on charge transfer behavior between gas species and 2D nanomaterials. Secondly, diverse synthesis strategies and characteristic gas sensing properties of 2D nanostructures such as graphene, metal oxides, transition metal dichalcogenides (TMDs), metal organic frameworks (MOFs), phosphorus, and MXenes are presented. In addition, recent trends in synthesis of 2D heterostructures by integrating two different types of 2D nanomaterials and their gas sensing properties are discussed. Finally, this review provides perspectives and future research directions for gas sensor technology using various 2D nanomaterials. [GRAPHICS] .
An approach to a hybrid software process simulation using the DEVS formalism
No full textThis article proposes an approach to a hybrid software process simulation modeling (SPSM) using discrete event system specification (DEVS) formalism, which implements the dynamic structure and discrete characteristics of the software development process. Many previous researchers on hybrid SPSM have described both discrete and continuous aspects of the software development process to provide more realistic simulation models. The existing hybrid models, however, have not fully implemented the feedback loop mechanism of the system dynamics. We define the DEVS_Hybrid_SPSM formalism by extending DEVS to the hybrid SPSM domain. Our hybrid SPSM approach uses system dynamics modeling to convey details concerning activity behaviors and managerial policies, while discrete event modeling controls activity start/completion and sequence. This approach also provides a clear specification, an explicit extension point to extend the simulation model, and a reuse mechanism. We will demonstrate a Waterfall-like hybrid software process simulation model using the DEVS_Hybrid_SPSM formalism. Copyright ？ 2006 John Wiley & Sons, Ltd.This work was supported by the Ministry of
Information & Communication, Korea, under the
Information Technology Research Center (ITRC)
Support Program
Medium- and high-intensity rTMS reduces psychomotor agitation with distinct neurobiologic mechanisms
No full textCd Concentration (mg kg<sup>−1</sup> DW) in Pak choi Grown under Different Cd Levels in Seven Chinese Soils.
No full text<p>Mean values followed by different letters within the same column are significantly different at <i>P</i> <0.05.</p><p>Cd Concentration (mg kg<sup>−1</sup> DW) in Pak choi Grown under Different Cd Levels in Seven Chinese Soils.</p
Spin-orbit density functional theory calculations for heavy metal monohydrides
No full textSpin-orbit density functional theory method implemented in the NWCHEM program package has been employed with the shape-consistent relativistic effective core potentials to calculate spectroscopic constants (bond lengths, frequencies, and dissociation energies) and estimate spin-orbit effects for 6th(Tl-At)- and 7th(113-117)-row element monohydrides. Results calculated with local density approximation and gradient-corrected approximation of the exchange-correlation functional are usually similar to those of other all-electron relativistic density functional approaches. The spin-orbit effects on the spectroscopic constants are in good agreement with previous two-component coupled-cluster singles and doubles with perturbative triples results calculated with same relativistic effective core potentials and basis sets. Spin-orbit density functional theory calculations with extended basis sets and extensive set of functionals for TlH, (113)H, PbH, (114)H, and PbO molecules indicate that there could be substantial variations among functionals and that the hybrid functionals produce the results in excellent overall agreement with empirical measures. (C) 2003 American Institute of Physics
Understanding President Choi Kyu-hahs Administrative Leadership Qualities
No full text이 글은 격동과 혼란이 지배했던 잔인한 시대적 상황과 정치적 구조아래서 잊혀진 최규하 대통령의 리더십을 살펴보고 있다. 최규하 대통령은 대통령직에 관한 한 시간의 한계와 구조의 한계를 동시에 지니고 있는 대통령이다. 8개월이라는 짧은 기간 동안 현실을 관리하고 정책을 집행하는 행정에 치중했던 대통령을 평가하는 것은 매우 어렵다. 따라서 이 글은 먼저 최규하 대통령의 자질을 그의 삶의 궤적을 통해 살펴보고 있다. 또한 시간과 구조의 한계 아래서 잊혀진 최규하 대통령의 리더십을 제한적이지만 객관적인 자료의 확보가 가능한 경제정책을 중심으로 행정 리더십에 국한하여 살펴보고 있다.Prime Minister Choi Kyu-hah became acting president after the assassination of President Park Chung-hee (1961-1979) in October 1979. He won an election in December of that year to become South Korea's 10th president. However, Major General Chun Doo-hwan and close allies within the military staged a coup d'état against his government in December 1979. They virtually controlled the government by early 1980. Chun-Doo-hwan declared martial law in May 1980 and became South Koreas de facto ruler. President Choi Kyu-hah was forced to resign in July 1980. This study analyzed what led to his administrative leadership styles/qualities. His administrative leadership styles/qualities are argued as the products of his unique personal background and South Koreas immature democratic institutions. In other words, the political context needs to be investigated to understand his administrative leadership styles/qualities. The analysis of these factors will help better understand Choi Kyu-hahs administrative leadership styles/qualities as well as South Korean politics and political system
Formation of the Charge-Localized Dimer Radical Cation of 2-Ethyl-9,10-dimethoxyanthracene in Solution Phase
No full textAlthough dimer radical ions of aromatic molecules in the liquid-solution phase have been intensely studied, the understanding of charge-localized dimers, in which the extra charge is localized in a single monomer unit instead of being shared between two monomer units, is still elusive. In this study, the formation of a charge-localized dimer radical cation of 2-ethyl-9,10-dimethoxyanthracene (DMA), (DMA) 2 .+ is investigated by transient absorption (TA) and time-resolved resonance Raman (TR 3 ) spectroscopic methods combined with a pulse radiolysis technique. Visible- and near-IR TA signals in highly concentrated DMA solutions supported the formation of non-covalent (DMA) 2 .+ by association of DMA and DMA .+ . TR 3 spectra obtained from 30 ns to 300 μs time delays showed that the major bands are quite similar to those of DMA except for small transient bands, even at 30 ns time delay, suggesting that the positive charge of non-covalent (DMA) 2 .+ is localized in a single monomer unit. From DFT calculations for (DMA) 2 .+ , our TR 3 spectra showed the best agreement with the calculated Raman spectrum of charge-localized edge-to-face T-shaped (DMA) 2 .+ , termed DT .+ , although the charge-delocalized asymmetric π-stacked face-to-face (DMA) 2 .+ , termed DF3 .+ , is the most stable structure of (DMA) 2 .+ according to the energetics from DFT calculations. The calculated potential energy curves for the association between DMA .+ and DMA showed that DT .+ is likely to be efficiently formed and contribute significantly to the TR 3 spectra as a result of the permanent charge-induced Coulombic interactions and a dynamic equilibrium between charge localized and delocalized structures. © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinhei
Replication Data for: Unwelcome Immigrants Knocking on the Door
No full textReplication Data for: Unwelcome Immigrants Knocking on the Doo
Micelle-Mediated Synthesis of Single-Crystalline beta(3C)-SiC Fibers via Emulsion Electrospinning
No full textSubmicroscale SiC fiber mats were prepared by the electrospinning of an oil-in-water(O/W) precursor emulsion, a subsequent thermal curing treatment, and calcination at 1600 degrees C. Low-molecular-weight PCS micelles entrapped within an aqueous PVP matrix played an important role in forming the continuous and dense core structure, resulting in pure SiC fibers. The manipulation of SiC fiber diameters could be obtained via control of the micellar PCS concentration (10-30 wt %), enabling the production of dense and highly crystallized SiC fiber architectures with diameters ranging from 200 to 350 nm
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