Large single crystals of zeolite, |<TEX>$Na_{75}$</TEX>|[<TEX>$Si_{117}Al_{75}O_{384}$</TEX>]-FAU (Na-Y, Si/Al = 1.56), were synthesized from gels with composition 3.58Si<TEX>$O_2$</TEX> : 2.08NaAl<TEX>$O_2$</TEX> 7.59NaOH 455<TEX>$H_2$</TEX>O 5.06TEA 2.23TCl. One these, a colorless single-crystal was ion exchanged by allowing aqueous 0.02 M CsOH to flow past the crystal at 293 K for 3 days, followed dehydration 673 and 1 <TEX>${\times}\;10^{-6}$</TEX> Torr 2 days. The structure fully...

The crystal structure of partially Pd2+-exchanged zeolite X, dehydrated at 400 °C in a flowing O2 stream (a = 24.982(4) Å), has been determined by single-crystal X-ray diffraction techniques the cubic space group Fd3̄ 21(1) °C. was first 0.05 M aqueous Pd(NH3)4Cl2 for 3 days. After dehydration oxygen, evacuated and 2 × 10-6 Torr h. refined to final error indices R1 0.070 R2 0.051 196 reflections which I > 2σ(I). In this structure, Pd2+ ions are found four crystallographic sites: Na+ fill...

A single crystal of fully dehydrated Cd2+-exchanged zeolite X, Cd46Si100Al92O384 per unit cell, was exposed at 320 °C to 0.005 Torr Cd vapor for 9 days. The resultant crystal, Cd68Si100Al92O384 cell [a = 24.953(6) Å], determined by single-crystal X-ray diffraction techniques in the cubic space group Fd3̄m 21(1) °C. structure refined final error indices R1 0.073 and R2 0.100 with 249 reflections which I > 3σ(I). In this structure, species (formally Cd2+, Cd+, Cd0) are found seven...

A single crystal of fully dehydrated sodium zeolite X, Na92Si100Al92O384 per unit cell, was allowed to react with rubidium vapor at 400 °C. Its structure determined by single-crystal X-ray diffraction techniques in the cubic space group Fd3̄, a = 25.200(4) Å 21 It refined final error indices, R1 R2 0.063 276 reflections for which I > 2σ (I). Not only have all 92 Na+ ions been replaced Rb+ redox reaction, but also an additional 48 atoms Rb were sorbed cell give Rb140Si100Al92O384. In this...

Marine emissions of Volatile Organic Compounds (VOCs) have received much attention because the International Maritime Organization (IMO) requires installation vapour emission control systems for loading crude oils or petroleum products onto ships. It was recently recognised that significant corrosion occurs inside these systems, which can cause severe clogging issues. In this study, we analysed chemical composition drain water sampled from currently operating to investigate primary causes in...

In this study, we studied the effects of creative science activities children from low-income family. Before and after activity programs, investigated family on scientific attitude, self-esteem self-efficacy. Also, programs for were interviewed results analyzed. The result study was summarized as following. First, has a positive effect attitude children. Through activities, familie`s average increased meaningfully. Second, self-efficacy case self-efficacy`s points increased, but there no...

Abstract The sputter-deposited fcc-MgO (001)[100]/bcc-Co 40 Fe B 20 (001)[110] spin-tunnel contact (STC) was successfully prepared on n-Ge(001). We found that the interfacial modification by ultrathin (6 Å) Mg insertion at interface between n-Ge and MgO plays an important role in spin injection into Ge. significantly amplified accumulation observed this STC as a result of structural modification. three-terminal Hanle signal 2.7 times larger than without insertion. Our study confirms...

Korea, a nation whose development is led by the state, has industrialized through growth pole strategy intent on creating raindrop effect. This effect was continuously expected throughout selection and concentration method, of population to continued. However, from mathematical view, distribution cities Zipf's law shows that it changed concentrated pattern in some dispersed pattern. In other words, regions went process centralization or decentralization based effects agglomeration economy....

In this study, to raise the scientific literacy for students, teaching and learning program was developed by applying Circle Map. The purpose of study find out Effect Elementary Science Teaching Program with Map on Learning Motive Achievement.BR To end, 6th grade classroom A-elementary school located in Jeju-city selected experimental group (25 patients). And other same comparative conducted Comparison has been lesson accordance general science class teacher guide. Was through a pre-test...

The land feature survey needs to be conducted in an objective and consistent manner. Among the categories of characteristics survey, however, shape has had vague reference points, undermining objectivity consistency survey. As such, this study intended extract geometric information by use GIS apply data mining algorithm C4.5, thereby suggesting a new method for addressing problems subjectivity uncertainty. findings showed approximately 81.6% agreement (21,570 parcels among total 24,433...

Land prices are affected by land area and shape the standard comparison table of prices' explaining characteristics two components is applied to calculation official price. However, according recent trends researches, they have a complex effect on use depending combination two, which will inevitably affect in end. Therefore, this study empirically analyzed how The main results as follows. First, 'the applies depreciation wider area, but research show that increase factors occur widens....

This study analyzed the determinants of housing transaction volume and applied demographic composition by age group which is an essential factor to estimate demand analytical model. The key findings are as follows: Firstly, reaffirmed co-movement phenomenon between fluctuations in prices volumes. Secondly, aside from market interest rates, most influential affecting volatility transactions was identified psychological factors market. Thirdly, terms population demographics, individuals their...

Oxide-based solid electrolytes are gaining attention as for next-generation all-solid-state batteries (ASSBs) due to their high safety. However, the interfacial resistance resulting from solid-solid contact between electrolyte and electrode surface has been identified a major cause of performance degradation remains critical challenge be addressed practical application ASSBs. Moreover, infiltration lithium dendrites formed during cycling into interface causes deterioration, posing...

In this study, to raise the interest and curiosity of students at same time learn science concepts meaningfully for students, teaching learning program was developed by applying Frayer model. The purpose study find out Effect Elementary Science Teaching Program with model on Learning Motive Achievement. To end, 6th grade classroom A-elementary school located in Seogwipo-city selected experimental group (26 patients). And other comparative (27 conducted Comparison has been lesson accordance...

Urban sprawl occurred at the outskirts of downtown Sejong City and caused lots urban problems. So designated its surrounding areas as subject to “growth management plan” in an attempt prevent reckless development induce planned development. While reflects aspect expansion arising from growth, some argue that it results balloon effect by land use regulations. This study empirically analyzes causes terms growth effect. The main conclusions are follows: First, was found due regulations...

To investigate the tendency of <TEX>$Li^+$</TEX> exchange from polar organic solvents, <TEX>$Li^+$</TEX>-ion into zeolite Y (Si/Al = 1.56) was attempted by undried methanol (crystal 1) and formamide 2) solvent. Two single crystals Na-Y were treated with 0.1 M LiNO3 in each two solvents at 323 K, followed vacuum dehydration 723 K. Their structures determined single-crystal synchrotron X-ray diffraction techniques cubic space group <TEX>$Fd{\bar{3}}m$</TEX>, 100(1) In both structures, for...