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| 1 | Effects of Eu3+ and Dy3+ doping or co-doping on optical and structural properties of BaB2Si2O8 phosphor for white LED applications显示文摘A series of Eu3+ and Dy3+ doped/co-doped as well as un-doped BaB2Si2O8 phosphors were synthesized via solid state reaction method. The PL result showed typical blue and green emission from Dy3+ and red emission from Eu3+. The f-f transitions involving the lanthanide ions along with dopant site occupancy were discussed thoroughly. Phonon assisted energy transfer process was observed from Eu3+ to Dy3+, which enhanced the emissions of Dy3+. Combinations of the emissions from Eu3+ and Dy3+ showed a possible white to red tuneable emission on the CIE diagram. The white warmth emissions of the phosphor were revealed to be adjustable through designing the dopant concentration and excitation wavelengths. An unusual energy transfer that originated from Eu3+ to Dy3+ was also discovered and the energy transfer mechanism was discussed. Proposed energy transfer mechanism was investigated using luminescence decay lifetime. All the phosphor exhibited efficient excitation in the UV range which matched well with the emissions from Ga N-based LED chips. This presented the Ba B2Si2O8 phosphor as a promising candidate for white LED applications. The effects of doping on the structural properties and the optical band gap of Ba B2Si2O8 phosphor were also discussed in this study. | 廖侹乔 刘宏 R. HUSSIN Z. IBRAHIM K. DERAMAN H.O. LINTANG W.N.W SHAMSURI | 2016 | Journal of Rare Earths2016,34,1: | 4 |
| 2 | 马来西亚番荔枝科紫玉盘属(Uvaria Linn.)、杯冠木属(Cyathostemma Griff.)和 Ellipeia Hook. f. et Thomson叶的比较解剖学(英文)显示文摘对紫玉盘属8种,杯冠木属3种和Ellipeia属 1种进行了叶的比较研究,以调查不同种之间解剖 学的不同点,这对种的鉴别和了解它们的分类学意义可能是有用的。有意义的解剖学特征是:末端石细 胞,表皮细胞的晶簇,毛状体,在中脉和叶柄的薄壁组织内的短石细胞以及中脉和叶柄横切面的形状。 有某些特征仅出现在某些种中,这对种的鉴别是有用的。结果亦显示这三个属的联系十分紧密。 | Khatijah Haji HUSSIN Noraishah Abu SAMAH Kamarudin MAT-SALLEH | 2000 | 热带亚热带植物学报2000,8,3: | 4 |
| 3 | Structural and luminescence studies of europium ions in lithium aluminium borophosphate glasses显示文摘Eu3+ doped borophosphate glasses with the chemical composition 20Li2O-30Al2O3-10B2O3-40P2O5-xEu2O3(where x=0.05 mol.%, 0.1 mol.%, 1.0 mol.%, 1.5 mol.% and 2.0 mol.%) were prepared by conventional melt quenching technique. The structural and luminescence properties of the prepared Eu3+ doped borophosphate glasses were studied and compared with reported results. The XRD pattern showed the amorphous nature of the prepared glasses. Whereas, the FTIR spectra revealed the vibrational modes in the prepared glasses. The bonding parameters( β and ?) were calculated through the excitation spectra. Judd–Ofelt(J–O) intensity parameters were calculated from the emission spectra and were used to determine transition probability(A), stimulated emission cross-section(σE P), radiative lifetime(τR) and branching ratios(βexp) for the transition 5D0→7Fj(j=1, 2, 3 and 4) of Eu3+ ions. Furthermore, the luminescence intensity ratio(R) of 5D0→7F2 to 5D0→7F1 transition was also calculated. Transition 5D0→7F2 had the highest value of stimulated emission cross-section and branching ratios and the results were comparable with the reported values. This indicated that the present glass is promising host material for Eu3+ doped fiber amplifiers. | Poh Sum Wong Ming Hua Wan Rosli Hussin Hendrik O.Lintang Salasiah Endud | 2014 | Journal of Rare Earths2014,32,7: | 3 |
| 4 | 2种昆虫病原真菌对草地贪夜蛾体表侵染模式的扫描电镜观察显示文摘【目的】在前期筛选获得对草地贪夜蛾高效致病真菌球孢白僵菌(Beauveria bassiana)菌株GZSL-1和玫烟色虫草(Cordyceps fumosorosea)菌株IFCF01的基础上,进一步明确2株菌株在草地贪夜蛾体表的侵染模式,为阐明菌株致病机理,提高昆虫病原真菌对草地贪夜蛾的防效提供理论依据。【方法】利用扫描电镜观察草地贪夜蛾2龄幼虫分别接种菌株GZSL-1和IFCF01(孢子悬浮液浓度为1.0×10^(7)孢子/mL)后分生孢子在幼虫体表附着、萌发、穿透和增殖的过程。【结果】菌株GZSL-1和IFCF01萌发后均可形成附着胞,草地贪夜蛾幼虫体表结构对2株菌株分生孢子萌发、附着和穿透芽管长度有不同程度的影响。2株菌株在各结构区均有较高的萌发率(>90.00%)和附着胞率(>80.00%),在平缓结构区比瘤状突起结构区观察到更短的穿透芽管。在各结构区,菌株GZSL-1形成的穿透芽管长度均短于菌株IFCF01相应的芽管长度,在平缓结构区,菌株GZSL-1的穿透芽管长度显著短于菌株IFCF01(P<0.05)。菌株GZSL-1和IFCF01分生孢子接种后分别在16和8 h内萌发,在24和32 h内普遍出现穿透结构穿透草地贪夜蛾幼虫体壁。2株菌株的初级和次级分生孢子分别在接种后72和96 h内出现。【结论】扫描电镜观察证实球孢白僵菌菌株GZSL-1和玫烟色虫草菌株IFCF01对草地贪夜蛾具有高致病性,揭示了病原真菌分生孢子在草地贪夜蛾虫体上的侵染过程,结果为后续2株菌株的改良及田间应用打下理论基础。 | 雷妍圆 官昭瑛 Shoaib Freed Syed Muhammad Zaka Abid Hussin 章玉苹 | 2021 | 南方农业学报2021,52,3: | 2 |
| 5 | Nested PCR for the rapid detection of TB from pleural fluid at HUKM Malaysia 显示文摘 | Salleh SA Hussin S Rahman MM | 2008 | Pak J Biol Sci2008,11,13: | 1 |
| 6 | A MAS NMR structural study of cadmium phosphate glasses显示文摘 | Hussin R Holland D Dupree R | 2002 | Journal of Non-Crystalline Solids2002,298,: | 1 |
| 7 | Petrography evidence of the interfacial transition zone (ITZ) in the normal strength con- crete containing granitic and limestone aggregates显示文摘 | Azimah Hussin Colin Poole | 2011 | Con- str Build Mater2011,25,5: | 1 |
| 8 | Mobile phone applications in academic library service: A students' feedback survey 显示文摘 | Karim N S A Dams S H Hussin R | 2006 | Cam- pus- Wide Information System2006,23,1: | 1 |
| 9 | Document Clustering Using Hierarchical SOMART Neural Network显示文摘 | Hussin M F Kamel M | 2003 | Proceedings of the International Joint Conference on Neural Networks2003,3,6: | 1 |
| 10 | Focal atrial tachycardia arising from the mitral annulus electrocardiographic and electrophysiologic characterization显示文摘 | Kalman JM Sanders P Hussin A | 2003 | J Am Coll Cardiol2003,41,12: | 1 |
| 11 | Effects of large-scale turbulence on cyclic variability in spark-ignition engine显示文摘 | Burluka A A E1-Dein Hussin A Ling Z Y | | 0,,: | 1 |
| 12 | IT Alignment and Firm Performance in Small Manufacturing Finns 显示文摘 | Paul Cragg Malcolm King Husnayati Hussin | 2002 | Journal of Strategic Information Systems2002,,11: | 1 |
| 13 | Textural characteristics, surface chemistry and activation of bleaching earth: A review 显示文摘 | Farihahusnah Hussin Mohamed Kheireddine Aroua Wan Mohd Ashri Wan Daud | 2011 | Chemical Engineering Journal2011,,1: | 1 |
| 14 | Wireless Traffic Light Controller for Emergency Vehicle through XBee and Basic Stamp Microcontroller 显示文摘 | R Hussin R C Ismail E Murrali | 2012 | Procedia Engineering2012,41,: | 1 |
| 15 | First and second order Markov chain models for synthetic generation of wind speed time series 显示文摘 | Shamshad A Bawadi M A Wan Hussin W M A | 2005 | Wind Energy2005,30,5: | 1 |
| 16 | Fracture strength after dynamic loading of endontically treated teeth restored with different post and core system显示文摘 | Heydecke G Butz F Hussin A | 2002 | J Prosthet Dent2002,8,4: | 1 |
| 17 | Focal atrial tachycardia arising from the mitral annulus:electrocardiographic and electrophysiologic characterization显示文摘 | Kistler PM Sanders P Hussin A | | 0,,: | 1 |
| 18 | Annihilation operators and coherent states for the Jaynes-Cummings models显示文摘 | Hussin V Nieto L M | 1994 | Phys Rev A1994,50,2: | 1 |
| 19 | Estimating tropical for- est biomass more accurately by integrating ALOS/PALSAR and Land- sat - 7 ETM + data 显示文摘 | Basuki T M Skidmore A K Hussin Y A | 2013 | Interntional Journal of Remote Sensing2013,34,13: | 1 |
| 20 | Weight status and perceived body size image in overweight and obese children 8-12 years old显示文摘 | Hussin DK Mohammad IH AI-Hamad HA | | 0,,04: | 1 |