Resolution Research Articles

A Resolution to Keep

A Resolution to Keep

정치-행정 관계의 이론적 곤경과 해결방안

정치-행정 관계의 이론적 곤경과 해결방안

Culture-based Resolution of Implicature Clash : Korean and English Scalar Adjectives1

Culture-based Resolution of Implicature Clash : Korean and English Scalar Adjectives1

A low temperature approach for photo/cathodoluminescent Gd2O2S:Tb (GOS:Tb) nanophosphors

AbstractTitrating the aqueous solution of equimolar RE(NO3)3 and (NH4)2SO4 with NH4OH to pH~9 at ~4°C produced an amorphous precursor that yielded phase‐pure and well‐dispersed RE2O2S nanopowder (RE = Gd0.99Tb0.01; GOS:Tb) via a RE2O2SO4 intermediate upon annealing in H2. The powders calcined at the typical temperatures of 700/1200°C exhibited unimodal size distributions and have the average crystallize sizes of ~17/55 nm, average particle sizes of ~284/420 nm, and specific surface areas of ~14.62/4.53 m2/g (equivalent particle sizes: ~56/180 nm). The 1200°C product exhibited sharp green luminescence at ~544 nm (FWHM = 2.3 nm; λex = 275 nm), with an absolute quantum yield of ~24.8% and a fluorescence lifetime of ~1.34 ms at room temperature. It was also shown that the powder possesses favorable thermal stability (the activation energy for thermal quenching of luminescence ~0.305 eV) and is stable under electron beam irradiation up to 7 kV and 50 μA. The synthetic technique has the advantages of scalability and favorable dispersion and high chemical/phase purity for GOS powder, which may allow the sintering of scintillation ceramics at lower temperatures.

Резолюция экспертного совета "Расширение доступа лиц, живущих с ВИЧ, к антиретровирусной терапии и меры предупреждения осложнений".

Резолюция экспертного совета "Расширение доступа лиц, живущих с ВИЧ, к антиретровирусной терапии и меры предупреждения осложнений".

A 2019 New Year’s Resolution to Consider

A 2019 New Year’s Resolution to Consider

A 2019 New Year’s Resolution to Consider

A 2019 New Year’s Resolution to Consider

Разрешение коллизий с участием норм Гражданского кодекса Российской Федерации: старые и новые проблемы

Разрешение коллизий с участием норм Гражданского кодекса Российской Федерации: старые и новые проблемы

Modeling Molecular Orientation Effects in Dye-Coated Nanostructures Using a Thin-Shell Approximation of Mie Theory for Radially Anisotropic Media

We here develop a thin-shell approximation of the Mie scattering problem for a spherical core–shell structure with radial anisotropy in the shell. The solution of the full anisotropic Mie theory re...

Resolution of methoxyphenamine and its analogues on a chiral stationary phase based on (+)-(18-crown-6)-2,3,11,12-tetracarboxylic acid.

A liquid chromatographic chiral stationary phase, which contains two N-CH3 amide connecting groups, based on (+)-(18-crown-6)-2,3,11,12-tetracarboxylic acid was first applied to the resolution of methoxyphenamine (2-methoxy-N-methylamphetamine, a β-adrenergic receptor agonist used as a bronchodilator). The resolution of methoxyphenamine on the chiral stationary phase containing two N-CH3 amide connecting groups was quite successful with the separation factor (α) of 1.42 and resolution (RS ) of 4.22 compared with those (α of 1.09 and RS of 1.55) on the chiral stationary phase containing two N-H amide connecting groups. In addition, the chiral stationary phase containing two N-CH3 amide connecting groups was applied to the resolution of methoxyphenamine analogues. From the comparison of the resolution results of methoxyphenamine with those of methoxyphenamine analogues on the chiral stationary phase containing two N-CH3 amide connecting groups, the N-methyl group and the 2-methoxyphenyl group of methoxyphenamine were elucidated to be the structurally essential parts for the resolution on the chiral stationary phase.

State Statute Protects Architect From Owner’s Indemnity Claim

This month’s column features a previously litigated fee dispute that sprouted new life following its resolution.

GHG emission reduction in energy sector and its abatement cost: Case study of five provinces in Mekong delta region, Vietnam

ABSTRACTRenewable energy (RE) and energy efficiency (EE) are globally promoted as measures to reduce greenhouse gas (GHG) emission and response to climate change. Under the context of budgetary constraint, especially in a developing country like Vietnam, different energy-related solutions should be weighted to obtain the appropriate solutions at a reasonable cost. In this paper, which is a case study in five Mekong provinces, the marginal abatement cost curve has been utilized to analyze the contribution of RE and EE solutions to GHG emission as well as their abatement costs, by 2020. The results indicate that all RE and EE solutions bring a total emission reduction benefit of 11.47 million tCO2e by 2020, being equivalent to 26.5% of the total emission of the five provinces. The abatement costs ranged from −US$59.71 to +US$318.53 /tCO2e.

Resolution of Respect

Resolution of Respect

Recyclable magnetic Fe3O4@SiO2/β-NaYF4:Yb3+,Tm3+/TiO2 composites with NIR enhanced photocatalytic activity

To extend the activities of TiO2 to the near infrared (NIR) region and to separate and recycle photocatalysts easily is vital for the high harvest of solar energy for sustainable society. The magnetic NIR activated Fe3O4@SiO2/β-NaYF4:Yb3+,Tm3+/TiO2 (FS/UC/T) composites have been synthesized by using the solvothermal method by adding Fe3O4@SiO2 and Degussa P25 into the mixed solution of NaOH, ethanol, oleic acid, Re(NO3)3 and NH4F. Moreover, the obtained composites were explored for photocatalytic applications. It was found that FS/UC/T emit UV–vis light under irradiation of 980 nm laser and efficient energy transfer from β-NaYF4:Yb3+,Tm3+ to TiO2 was verified. The photodegradation experiments for treating methylene blue (MB), rhodamine B (RhB), methyl orange (MO) and colorless phenol were carried out to evaluate the photocatalytic activities of the samples. The photodegradation rates reach 76.62%, 68.48%, 30.05% and 27.16% for MB, RhB, MO and phenol under irradiation of 980 nm laser, respectively, which suggested magnetic FS/UC/T composite is an advanced NIR-driven photocatalyst. Moreover, the magnetic photocatalyst showed easy separation and good stability in the recycled tests. It suggested a promising system to utilize the NIR energy for photocatalysis based on TiO2 and to utilize the magnetic for separation of photocatalysts, which will contribute to practical environmental remediation in the future.

Impact of Ocean Eddy Resolution on the Sensitivity of Precipitation to CO2 Increase

AbstractThe past few years have seen a growing investment in the development of global eddy‐resolving ocean models, but the impact of incorporating such high ocean resolution on precipitation responses to CO2 forcing has yet to be investigated. This study analyzes precipitation changes from a suite of Geophysical Fluid Dynamics Laboratory models incorporating eddy‐resolving (0.1°), eddy‐permitting (0.25°), and eddy‐parameterizing (1°) ocean models. The incorporation of eddy resolution does not challenge the large‐scale structure of precipitation changes but results in substantial regional differences, particularly over ocean. These oceanic differences are primarily driven by the pattern of sea surface temperature (SST) changes with greater sensitivity in lower latitudes. The largest impact of ocean resolution on SST changes occurs in eddy‐rich regions (e.g., boundary currents and the Southern Ocean), where impact on precipitation changes is also found to various degrees. In the Gulf Stream region where previous studies found considerable impact of eddy resolution on the simulation of climatological precipitation, we do not find such impact from the Geophysical Fluid Dynamics Laboratory models, but we do find substantial impact on precipitation changes. The eddy‐parameterizing model projects a banded structure common to the Coupled Model Intercomparison Project (Phase 5) models, whereas the higher‐resolution models project a poleward shift of precipitation maxima associated with an enhanced Gulf Stream warming. Over land, precipitation changes are generally not very sensitive to ocean resolution. In eastern North America adjacent to the Gulf Stream region, moderate differences are found between resolutions. We discuss the mechanisms of land differences, which arise through the simulation of both climatological SST and SST changes.

Resolution of a triazol-containing compound through co-crystallisation

Resolution of a triazol-containing compound through co-crystallisation

Effect of Noise on Density Differences of Tissue in Computed Tomography

Currently, the highest cancer death rate in Korea is lung cancer, which is a typical cancer that is difficult to detect early. Low-dose chest CT is being used for early detection, which has a greater lung cancer diagnosis rate of about three times than regular chest x-ray images. However, low-dose chest CT not only significantly reduces image resolution but also has a weak signal and is sensitive to noise. Also, air filled lungs are low-density organs and the presence of noise can significantly affect early diagnosis of cancer. This study used Visual C++ to set a circle inside a large circle with a density of 2.0, with a density of 1.0, which is the density of water, in which five small circle of mathematics have different densities. Gaussian noise was generated by 1%, 2%, 3%, and 4% respectively to determine the effect of noise on the mean value, the standard deviation value, and the relative noise ratio(SNR). In areas where the density difference between the large and small circles was greatest in the event of 1 % noise, the SNR in the area with the greatest variation in noise was 4.669, and in areas with the lowest density difference, the SNR was 1.183. In addition, the SNR values can be seen to be high if the same results are obtained for both positive and negative densities. Quality was also clearly visible when the density difference was large, and if the noise level was increased, the SNR was reduced to significantly affect the noise. Low-density organs or organs in areas of similar density to cancers, will have significant noise effects, and the effects of density differences on the probability of noise will affect diagnosis.

Implementation of Radiotherapy Educational Contents Using Virtual Reality

The development of smart devices has brought about significant changes in daily life and one of the most significant changes is the virtual reality zone. Virtual reality is a technology that creates the illusion that a 3D high-resolution image has already been created using a display device just like it does in itself. Unrealized subjects are forced to rely on audiovisual materials, resulting in a decline in the concentration of practices and the quality of classes. It used virtual reality to develop effective teaching materials for radiology students. In order to produce a video clip bridge using virtual reality, a radiology clinic was selected to conduct two exposures from July to September 2017. The video was produced taking into account the radiology and work flow chart and filming was carried out in two separate locations : in the computerized tomography unit and in the LINAC room. Prior to filming the scenario and the filming route were checked in advance to facilitate editing of the video. Modeling and mapping was performed in a PC environment using the Window XP operating system. Using two leading virtual reality camera Gopro Hero, CC pixels were produced using a 4K UHD, Adobe, followed by an 8 megapixel resolution of 3,840 × 2,160 /4,096 × 2,160. Total regeneration time was performed in about 5 minutes during the production of using virtual reality to prevent vomiting and dizziness. Currently developed virtual reality radiation and educational contents are being used to secure the market and extend the promotion process to be used by various institutions. The researchers will investigate the satisfaction level of radiation and educational contents using virtual reality and carry out supplementary tasks depending on the results.

Reflections and resolutions 2: Beyond the surface

Reflections and resolutions 2: Beyond the surface

Reflections and resolutions 3: To advance equality

Reflections and resolutions 3: To advance equality