Green BaSi2O2N2:0.02Eu2+ phosphor is synthesized through a two-step solid state reaction method. The first firing is for crystallization, and the second firing is for reduction of Eu3+ into Eu2+ and growth of crystal grains. By thermal analysis, the three-time endothermic reaction is confirmed: pyrolysis reaction of BaCO3 at 900 oC and phase transitions at 1,300 oC and 1,400 oC. By structural analysis, it is confirmed that single phase [BaSi2O2N2] is obtained with Cmcm space group of orthorhombic structure. After the first firing the morphology is rod-like type and, after the second firing, the morphology becomes round. Our phosphor shows a green emission with a peak position of 495 nm and a peak width of 32 nm due to the 4f65d1→4f7 transition of Eu2+ ion. An LED package (chip size 5.6 x 3.0 mm) is fabricated with a mixture of our green BaSi2O2N2, and yellow Y3Al5O12 and red Sr2Si5N8 phosphors. The color rendering index (90) is higher than that of the mixture without our green phosphor (82), which indicates that this is an excellent green candidate for white LEDs with a deluxe color rendering index.

BaSiO3:RE3+ (RE = Sm or Eu) phosphor powders with different concentrations of activator ions are synthesized using the solid-state reaction method. The effects of the concentration of activator ions on the structural, photoluminescent, and morphological properties of the barium silicate phosphors are investigated. X-ray diffraction data reveals that the crystal structure of all the phosphors, regardless of the type and the concentration of the activator ions, is an orthorhombic system with a main (111) diffraction peak. The grain particles agglomerate together to form larger clusters with increasing concentrations of activator ions. The emission spectra of the Sm3+-doped BaSiO3 phosphors under excitation at 406 nm consist of an intense orange band at 604 nm and three weak bands centered at 567, 651, and 711 nm, respectively. As the concentration of Sm3+ increases from 1 to 5 mol%, the intensities of all the emission bands gradually increase, reach maxima at 5 mol% of Sm3+ ions, and then decrease significantly with further increases in the Sm3+ concentration due to the concentration quenching phenomenon. For the Eu3+-doped BaSiO3 phosphors, a strong red emission band at 621 nm and several weak bands are observed. The optimal orange and red light emissions of the BaSiO3 phosphors are obtained when the concentrations of Sm3+ and Eu3+ ions are 5 mol% and 15 mol%, respectively.

이 논문은 Sweetser(1990)의 개념영역(概念域) 이론과 Traugott(1995)의 주관성 이론으로 중국어 ‘如果’와 한국어 ‘-(으)면, -거든’ 가정조건문의 의미적 특성을 고찰하고 대조하였다. 의미의 개념영역은 현실 세계 영역(行域), 인식 영역(知域)과 화행 영역(言域) 등 세 개의 하위분류로 나눌 수 있다. ‘如果’ 조건문과 ‘-(으)면’ 조건문은 현실 세계 영역에서 조건-결론 관계를 나타낼 수 있다. 이때 ‘如果’ 조건문은 ‘-(으)면’ 조건문보다 인과 관계의 객관성이 더 엄격하게 요구되고 주관성도 더 약하다. 인식 영역으로의 의미 확장은 범주 은유의 작용 결과이다. 인식 영역에서 ‘如果’ 조건문과 ‘-(으)면’ 조건문은 의미적 기능이 비슷하다. 화행 영역에서 ‘如果’와 ‘-(으)면’에 비해 ‘-거든’ 조건문은 조건과 결론에 대한 제약이 더 많다. 대부분 경우에 ‘-거든’은 화행 영역에서만 조건 의미가 있고 인식 영역과의 의미 중첩 현상을 가끔 보인다.

본 연구의 목적은 미국, 유럽에 출원된 기후기술관련 특허의 특성을 분석하고 지재권 소송경향을 파악하여 우수한 기후기술에 대한 지재권 제도가 원활하게 활용되도록 제언함에 있다. 기후변화관련 유효특허 중 기술 분류상에서는 감축기술이, 국가별로는 미국이 유럽보다 더 많은 비중을 차지하고 있었다. 기후변화 감축, 적응, 리스크 예측 등 기후기술영역별로 지재권의 보호를 통해 배타적인 권리를 부여하는 것은 발명의 진흥에는 도움이 되지만 기술공유에는 장애가 될 여지도 있다. 이에, 특허법상 특허권 이전 및 공유에 대한 제도를 활용하거나, 「기후변화적응법」(안),「환경기술 및 환경산업 지원법」,등의 제·개정을 통한 제도적인 보완책도 가능하다. 또한 기후변화 관련 소송에 있어 최근의 주요한 소송전략으로서 공공신탁이론을 활용한 사례와 헌법 및 인권주장의 사용한 사례를 분석하였다. 분석결과, 2015년을 기점으로 공공신탁이론과 헌법 및 인권주장이 기후변화 소송에 사용되고 그러한 주장이 법원에 의해 받아들여지면서 개별국가의 책임성이 보다 강조되고 있다. 이런 경향성에 따라 각국은 기후변화에 대처하는 다양한 정책을 개발할 필요성이 제기되고 있는데, 지적재산권과 관련하여서도 새로운 특허개발의 촉진ᆞ개발된 특허의 국가간 이전 등 다양한 정책방안이 마련될 토대가 형성되는 상황이다. 국가책임을 강조하는 현 소송경향을 반영하여, 특허매입 및 실시권 제도의 활용, 자유실시 제도, 강제실시권의 적용 폭을 넓힌다면 범지구적 기후변화 문제를 해결할 기후기술의 지재권을 보호하면서도 기술공유의 공익성도 증진시킬 것으로 판단된다.

이온성 액체를 이용하여 질산 용액으로부터 Am(Ⅲ)과 Eu(Ⅲ)의 추출 거동을 조사하고 이온성 액체의 활용가능성을 살펴보았다. 이온성 액체로는 1-alkyl-3- methylimidazolium bis(trifluoromethylsulfonyl)imide ([Cnmim][Tf2N])을 사용하였고, noctyl( phenyl)-N,N-diisobutyl carbamoylmethyl phosphine oxide (CMPO)와 tri-n-butylphosphate (TBP)를 추출제로 사용하여, Am(Ⅲ)과 Eu(Ⅲ)의 추출 분배계수를 질산농도, CMPO, TBP와 같은 변수들의 함수로서 측정하였다. 이온성 액체를 사용함으로써 기존의 n-doodecane (n-DD)과 비교하여 추출 효율이 현저히 증가하였다. 질산 용액의 농도가 높을수록 Am(Ⅲ)과 Eu(Ⅲ)의 추출률은 감소하였으며, Eu(Ⅲ)의 추출률은 Am(Ⅲ)보다 전반적으로 작았다. 이온성 액체를 이용한 Am(Ⅲ)과 Eu(Ⅲ)의 추출 메카니즘은 n-DD와 같은 분자성 유기용매를 사용하는 경우와는 달리 양이온 교환 메카니즘에 의해 일어나는 것으로 판명되었다. 사용한 모든 이온성 액체에 대하여 Am(Ⅲ)과 Eu(Ⅲ)의 추출 분배계수는 CMPO의 농도가 높을수록 증가 하고, CMPO 농도에 대한 추출 데이터의 직선 기울기 값은 약 3.0으로 이온성 액체를 이용한 Am(Ⅲ)과 Eu(Ⅲ)의 추출반응에서 3분자의 CMPO가 복합착물을 형성하는 것으로 나타났다.

Ca3MgSi2O8:Eu2+(x = 0.003, 0.005, 0.007, 0.01, 0.03 mol) white phosphors for Light Emitting Diodes(LED) are synthesized with different concentrations of Eu2+ ions using a solid state reaction method. The crystal structures, surface and optical properties of the phosphors are investigated using X-Ray Diffraction(XRD), Scanning Electron Microscope(SEM) and photoluminescence(PL). The X-Ray Diffraction results reveals that the crystal structure of the Ca3MgSi2O8:Eu2+ is a monoclinic system. The particle size of Ca3MgSi2O8:Eu2+ white phosphors is about 1~5 μm, as confirmed by SEM images. The maximum emission spectra of the phosphors are observed at 0.01 mol Eu2+ concentration. The decrease in PL intensity in the Ca3MgSi2O8:Eu2+ white phosphors with Eu2+ concentration is interpreted by concentration quenching. The International Commission on Illumination(CIE) coordinate of 0.01 mol Eu doped Ca3MgSi2O8 is X = 0.2136, Y = 0.3771.

Huawei v. ZTE 판결은 표준필수특허 침해를 근거로 한 금지청구가 시장지배적지위 남용에 해당하는지에 관한 EU 개별국 법원들의 입장이 분열된 상황에서 이를 수렴으로 이끌기 위한 하나의 시도이다. Huawei v. ZTE 판결 이후에도, 영국 법원은 표준필수특허권자의 금지청구 인용 여부에 있어 여전히 법원의 재량을 중시하는 입장을 취하고 있다. 구체적으로, 영국 법원은 표준필수특허권자의 금지청구가 시장지배적지위 남용에 해당하는지 여부는 관련 제반 상황을 고려하여 판단해야 하며, Huawei Choreography는 하나의 참작 사유일 뿐이라고 본다. 한편, 독일 법원은 Huawei v. ZTE 판결 이후 Huawei Choreography 상 절차를 엄격히 집행하면서, 위 절차를 구성하는 개별 단계에 관하여 상세한 해석을 해 나가고 있다. 다만, 시장지배적 지위 남용 여부의 판단에 있어 경쟁법적 검토가 명시적으로 이루어지지 않고 있다는 점, 그리고 과도기적 사건(transitional case)에 대한 예외를 인정하고 있다는 점은 주목할 만하다. 종합하자면, 현재까지 EU 개별국 판례 동향에 비추어 볼 때, Huawei 판결이 표준필수특허권자의 금지청구에 대한 판단에 있어 가장 중요한 기준으로 등장한 것은 분명하나 EU 전역의 수렴을 달성했다고 보기는 어렵다. 다만, 향후 영국과 독일 외에 다른 EU 내 국가들에서의 후속 판결과 영국 및 독일의 상급심 판결 동향을 지속적으로 추적하여야 할 것이다.

Nanosized Gd2O3:Eu3+ red phosphor is prepared using a template method from metal salt impregnated into a crystalline cellulose and is dispersed using a bead mill wet process. The driving force of the surface coating between Gd2O3:Eu3+ and mica is induced by the Coulomb force. The red phosphor nanosol is effectively coated on mica flakes by the electrostatic interaction between positively charged Gd2O3:Eu3+ and negatively charged mica above pH 6. To prepare Gd2O3:Eu3+-coated mica (Gd2O3:Eu/mica), the coating conditions are optimized, including the stirring temperature, pH, calcination temperature, and coating amount (wt%) of Gd2O3:Eu3+. In spite of the low luminescence of the Gd2O3:Eu/mica, the luminescent property is recovered after calcination above 600℃ and is enhanced by increasing the Gd2O3:Eu3+ coating amount. The Gd2O3:Eu/mica is characterized using X-ray diffraction, field emission scanning electron microscopy, zeta potential measurements, and fluorescence spectrometer analysis.

Gd2O3:Eu3+ red phosphors were prepared by template method from crystalline cellulose impregnated by metal salt. The crystallite size and photoluminescence(PL) property of Gd2O3:Eu3+ red phosphors were controlled by varying the calcination temperature and Eu3+ mol ratio. The nano dispersion of Gd2O3:Eu3+ was also conducted with a bead mill wet process. Dependent on the time of bead milling, Gd2O3:Eu3+ nanosol of around 100 nm (median particle size : D50) was produced. As the bead milling process proceeded, the luminescent efficiency decreased due to the low crystallinity of the Gd2O3:Eu3+ nanoparticles. In spite of the low PL property of Gd2O3:Eu3+ nanosol, it was observed that the photoluminescent property was recovered after re-calcination. In addition, in the dispersed nanosol treated at 85 oC, a self assembly phenomenon between particles appeared, and the particles changed from spherical to rod-shaped. These results indicate that particle growth occurs due to mutual assembly of Gd(OH)3 particles, which is the hydration of Gd2O3 particles, in aqueous solvent at 85 oC.

A series of CaNb2O6:Dy3+, CaNb2O6:Eu3+ and CaNb2O6:Dy3+, Eu3+ phosphors were prepared by solid-state reaction process. The effects of activator ions on the structural, morphological and optical properties of the phosphor particles were investigated. XRD patterns showed that all the phosphors had an orthorhombic system with a main (131) diffraction peak. For the Dy3+-doped CaNb2O6 phosphor powders, the excitation spectra consisted of one broad band centered at 267 nm in the range of 210-310 nm and three weak peaks; the main emission band showed an intense yellow band at 575 nm that corresponded to the 4F9/2→ 6H13/2 transition of Dy3+ ions. For the Eu3+-doped CaNb2O6 phosphor, the emission spectra under ultraviolet excitation at 263 nm exhibited one strong reddish-orange band centered at 612 nm and four weak bands at 536, 593, 650, and 705 nm. For the Dy3+ and Eu3+-codoped CaNb2O6 phosphor powders, blue and yellow emission bands due to the 4F9/2→ 6H15/2 and 4F9/2→ 6H13/2 transitions of Dy3+ ions and a main reddish-orange emission line at 612 nm resulting from the 5D0→ 7F2 transition of Eu3+ ions were observed. As the concentration of Eu3+ ions increased from 1 mol% to 10 mol%, the intensities of the emissions due to Dy3+ ions rapidly decreased, while those of the emission bands originating from the Eu3+ ions gradually increased, reached maxima at 10 mol%, and then slightly decreased at 15 mol% of Eu3+. These results indicate that white light emission can be achieved by modulating the concentrations of the Eu3+ ions incorporated into the Dy3+-doped CaNb2O6 host lattice.

The purpose of this study is to investigate EU, UK and USA’s laws and standards related to safety criteria for commercial kitchen machines. The study was based on literature survey and web surfing. The results revealed that EU has relevant directives by kitchen machines and harmonized standards according to the directives. The directives and harmonized standards are translated into the laws and standards of EU member countries, respectively. The kitchen facility relevant legal systems of UK and USA do not prescribe the safety devices or measures, but only the basic health and safety requirements. The requirements were forcefully implemented through the certificate systems such as CE(Confommite European), UL(Underwriters Laboratories), etc. Only products with CE, UL or NRTL(ationally Recognized Testing Laboratory) certificate marking can be placed on the market of EU and USA, or put into service. For achieving the certificates, all requirements regulated in the relevant standards should be met. The standards of UK and USA were presented by kitchen machines or by standards themselves, respectively. Safety devices required by the standards were also summarized by kitchen machines and their risk factors.

Inorganic phosphors based on ZrO2:Eu3+ nanoparticles were synthesized by a salt-assisted ultrasonic spray pyrolysis process that is suitable for industrially-scalable production because of its continuous nature and because it does not require expensive precursors, long reaction time, physical templates or surfactant. This facile process results in the formation of tiny, highly crystalline spherical nanoparticles without hard agglomeration. The powder X-ray diffraction patterns of the ZrO2:Eu3+ (1-20 mol%) confirmed the body centered tetragonal phase. The average particle size, estimated from the Scherrer equation and from TEM images, was found to be approximately 11 nm. Photoluminescence (PL) emission was recorded under 266 nm excitation and shows an intense emission peak at 607 nm, along with other emission peaks at 580, 592 and 632 nm which are indicated in red.

The impending British exit (Brexit) from the European Union has placed the UK’s investment policy at a crossroads. A post-Brexit UK will now have to reorganise its investment relationships with its economic partners through bespoke UK IIAs. This exercise will have to accommodate the shifting zeitgeist concerning the balance of investors’ rights and the right to regulate IIAs that is expected. This paper examines the continued relevance of the recently minted Investment Protection Chapter in the EU-Singapore Free Trade Agreement, acknowledged by Britain’s power brokers, as a persuasive model for the UK to emulate for this purpose. This is notwithstanding the uncertainties that now surround the implementation and efficacy of the Agreement in light of Brexit and a pending decision from the Court of Justice of the European Union. Such emulation would ultimately make for a better Investor-State Dispute Settlement System in the UK IIAs by providing a much needed update to its old investment treaty architecture.

Nanosized and aggregated Y2O3:Eu Red phosphors were prepared by template method from metal salt impregnated into crystalline cellulose. The particle size and photoluminescent property of Y2O3:Eu red phosphors were controlled by variation of the calcination temperature and time. Dispersed nanosol was also obtained from the aggregated Y2O3:Eu Red phosphor under bead mill wet process. The dispersion property of the Y2O3:Eu nanosol was optimized by controlling the bead size, bead content ratio and milling time. The median particle size (D50) of Y2O3:Eu nanosol was found to be around 100 nm, and to be below 90 nm after centrifuging. In spite of the low photoluminescent properties of Y2O3:Eu nanosol, it was observed that the photoluminescent property recovered after re-calcination. The dispersion and photoluminescent properties of Y2O3:Eu nanosol were investigated using a particle size analyzer, FE-SEM, and a fluorescence spectrometer.