Investigation and Development of the High-Efficiency Vertical Chip

GaN基LED一般生长在蓝宝石衬底上，由于蓝宝石是绝缘体和不良的导热物质，使得传统的正装芯片在大功率下工作时，容易因散热不佳导致失效。本论文利用外延转移技术把蓝宝石衬底更换成更好的导热导电衬底，制备成薄膜垂直芯片，以利于大电流，大功率下应用。 本论文所述芯片，使用ICPdamage作为电流阻挡层，使用基板键合技术将导电导热衬底和GaN结合，然后用激光剥离方式将蓝宝石衬底去除，为了增加出光效率，对GaN表面进行粗化。 我们发现PCB-ICP条件会导致垂直结构LED在老化过程发生漏电，通过更换镜面Mir的金属及EMMI&SEM分析，发现引起老化漏电的原因来源于镜面金属——Ag迁移所致，迁移通道...As GaN-base LED is usually grown on sapphire substrate, the conventional lateral chip is normally failed to be applied in high power application for the electrical insulated and poor heat conductor. We use epi-transfer technology to transfer the sapphire to a better thermal dissipation and conductive substrate and manufacture the vertical thin-film for the high power application。 The vertical thi...学位：博士后院系专业：物理与机电工程学院_微电子学与固体电子学学号：201217004

Theoretical Investigation for the Electronic Structure of the Molecules with Small HOMO-LUMO Gap and Related Materials

硅基电子学已发展至极限，未来的集成电路将由独立的分子及其有限聚集体构成。因此，分子器件及分子电子学引起人们极大的兴趣。本论文主要对可用于分子电子学的窄能隙分子——M(ETTF)2(M-金属，ETTF-四硫富瓦烯衍生物)进行系统的理论研究，发现： 1. 发现第10族M(ETTF)2（Ni、Pd和Pt）的分子基态是平面结构的单态双自由基态，中心金属呈+2价，两个负一价配体上的自由基呈反铁磁耦合；第12族M(ETTF)2（Zn、Cd和Hg）的分子基态是四面体结构的三重态，中心金属呈+2价，两个负一价配体上的自由基呈铁磁耦合；第11族M(ETTF)2（Cu、Ag和Au）的中心金属的表现出丰富的价态：...Molecules with extremely narrow HOMO-LUMO gaps (学位：理学博士院系专业：化学化工学院化学系_物理化学学号：2052007015360

Immobilized cultivation of Dictyostelium discoideum with polyurethane foam

研究了聚氨酯泡沫应用于固定化盘基网柄菌的可行性,发现以简单处理过的聚氨酯泡沫为载体,能够高效实现盘基网柄菌的固定化培养。考察了载体粒径大小、载体量和摇床转速等对固定化培养的影响,在优化的培养条件和固定化条件下,盘基网柄菌的最大细胞密度是悬浮培养的2~4倍。The immobilization of D.discoideum with polyurethane foam(PUF) was proposed and the effects of PUF's properties on the immobilization was examined.The results showed that PUF was a suitable carrier for the efficient imoblization of D.discoideum.The effects of PUF addition and culture conditions were optimized to attain high density of D.discoideum.Under optimized culture conditions,high cell density of D.discoideum(4.56×107 cells/mL) has been achieved in the shake flasks,which was 2～4 times higher than that of free-cell culture in the axenic medium.国家自然科学基金资助项目(30370039

Aging characteristic investigation of VLEDs with current blocking layer structure

发现ICP dAMAgE制作电流阻挡层的制程会导致垂直结构lEd在老化过程中发生漏电。通过更换反射层的金属及EMMI&SEM分析,发现老化漏电的原因来源于反射金属——Ag的电迁移,迁移通道可能来源于ICP打开穿透位错的封口。在缺陷位错内填入低电迁移率金属并检测。结果表明,填入低电迁移率金属后既解决了老化漏电问题,同时不影响芯片的初始光电特性。The failure of current leakage in the process of ICP-damage current blocking layer was found.Through changing reflecting layer metal and EMMI & SEM inspection, it was found that the failure can be ascribed to reflecting metal Ag electro migration, whose migrating channel may be ascribed by penetrating dislocation seal opened by the ICP treatment.Low electro migration rate metal was deposited in the defect dislocation, then the chip was tested.Results show that the question of aging current leakage is solved after the low electro migration rate metal to be deposited.Meanwhile, initial lighting property of the chip isn't influenced.2013年国家发改委产业振兴与技术改造项

Analysis of genetic effects for grain quality characters in late indica hybrid rice

以6个籼型野败三系不育系为母本,5个晚籼恢复系为父本,进行不完全双列杂交设计,对籼型杂交晚稻稻米品质性状的遗传效应进行分析.结果表明:糙米率、精米率、垩白粒率、碱消值和胶稠度等5个性状同时受到种子遗传效应和细胞质遗传效应的控制,但细胞质遗传效应都大于种子遗传效应.整精米率、垩白度和透明度等3个性状只受到种子遗传效应的控制,并且都以种子显性遗传效应为主.直链淀粉含量同时受到种子遗传效应和母体植株遗传效应的控制,但以种子显性遗传效应为主.粒长和长宽比同时受到母体植株加性遗传效应和母体植株显性遗传效应的控制.不育系451A、全丰A、长丰A及恢复系蜀恢527、科恢752、岳恢94是配制优质杂交晚稻组合的优异亲本.Six CMS(Fuyi A etc.) and 5 late-restorers(Minghui 63 etc.) were used in partial diallel crosses to analyse the genetic effects of grain quality characters in late indica hybrid rice,using seed quantitative traits genetic models and analysis methods developed by Zhu Jun in cereal crops.The results showed that the 5 characters were simultaneously controlled by seed genetic effects and cytoplasmic genetic effects in percentage of brown rice,percentage of milled rice,percentage of chalky grain,gelatinization temperature and gel consistency,but the cytoplasmic genetic effects were all higher than the seed genetic effects.The 3 traits were only controlled by seed genetic effects in percentage of head rice,chalkiness and translucency,and the effects were all mainly come from seed dominance genetic effects.Amylose content was controlled by seed genetic effects and maternal genetic effects,but was mainly controlled by seed dominance genetic effects.The 2 traits were simultaneously controlled by maternal additive genetic effects and maternal dominance genetic effects in kernel length and length/breadth ratio.The 6 materials were available parents for breeding late indica hybrid rice combinations with good quality,which included the CMS of 451 A,Quanfeng A and Changfeng A,the restorers of Shuhui 527,Kehui 752 and Yuehui 94.福建省自然科学基金资助项目(B0310020

The Jacobi Fields on a Complete Riemannian ManiFold

证明了在具非负曲率完备黎曼流形上，沿无共轭点测地线的正常平行向量场必为JA-CObI场.In this paper the authors prove that, in a complete Riemannian maniFold with nonnegative curvature, a normal parallel Field on a geodesic without conjugate points is a Jacobi Field.福建省自然科学基

Germination and Sprouting Physiology of Fresh Walnut Irradiated by ~(60)Co γ Ray

以‘辽河4号’脱皮鲜食核桃果实为试材,经60Coγ射线辐照处理和聚乙烯(PE)保鲜袋包装后贮藏于(25±3)℃和(20±3)℃条件下,测定了相关生理指标的变化,探究60Coγ射线辐照对鲜食核桃萌芽生理的影响。结果表明,在(25±3)℃和(20±3)℃的贮藏条件下,对照组鲜食核桃分别在贮藏12和20 d时开始发芽,处理组核桃在贮藏期间未出现发芽现象;在对照组鲜食核桃胚芽萌发期间,其呼吸强度、可溶性蛋白质和游离氨基酸含量及脂氧合酶(LOX)、过氧化氢酶(CAT)、过氧化物酶(POD)活性总体呈上升趋势,脂肪含量和脂肪酶(LPS)活性则降低;而60Coγ射线辐照有效地减缓了鲜食核桃脂肪、可溶性蛋白质及游离氨基酸含量的下降速度及其呼吸代谢强度,提高了POD活性,却抑制了LOX、LPS、超氧化物歧化酶(SOD)和CAT的活性,从而阻碍了其胚芽的萌发,以达到延长其贮藏期的目的

一种油水两相流型转换装置

本发明提供了一种油水两相流型转换装置，包括依次相连的：进液管，在管壁上垂直安装有与内部相通的进药管，在进药管下游的内部设置有强化扩散药剂的扩散片；转换管，用于实现油聚并，内部依次设置有倾斜的整流片和水平的聚并片；出口管，用于将聚并处理后的流体排出至后续油水分离系统。本发明体积小、占地面积小、没有运动部件、维护简单，该装置可提高传统油水分离工艺效率并精简其流程。该装置可配套用于海洋平台、陆上油田，甚至可用于未来水下油水分离系统

液--液--液三相萃取研究进展及其在生化分离中的应用

对液—液—液三相萃取体系的研究进展进行了综述，并按照其特点进行分类，讨论了液—液—液三相萃取方法在各种复杂体系中的应用。重点介绍了该新型萃取体系用于生化产品分离的研究进展，同时还展望了其将来的应用及研究前景