Structure, Magnetic and Electronic Transport Properties of New-Type Magnetic Nanocluster Assembled Thin Films

纳米粒子以及由它们构成的纳米结构材料由于具有尺寸效应、量子限域效应和界面效应，通常显示出许多不同于常规块体材料的磁、光、电等特性，在现代工业、国防和高新技术发展中充当着重要的角色。纳米粒子复合薄膜材料由于其兼有复合材料和纳米材料两者的优点，引起了越来越多的关注，并成为一个重要的前沿研究领域。 本论文的研究工作包括两个方面：1）利用纳米粒子束流复合薄膜沉积系统将由等离子体溅射惰性气体冷凝法制备的Fe65Co35合金纳米粒子原位封装到由常规磁控溅射制备的Ni0.5Zn0.5Fe2O4薄膜中，制备了[email protected]双磁性相纳米复合薄膜，并系统地研究了合金纳米粒子含量...Compared with the bulk materials, nanoparticles and nanostructure materials show many different magnetic, optical and electrical properties due to their size effect, quantum confinement and interfacial effect, and play an important role in the development of modern industry, national defence and high technology field. Especially the nanocomposite materials have drawn extensive attentions and becom...学位：工学博士院系专业：材料学院_材料物理与化学学号：2072012015331

中国における都市集合住宅の管理システムに関する研究

博士(学術)大阪市立大

烟台近海大型底栖动物群落特征

根据2010年和2011年对烟台近海大型底栖动物的周年调查资料,采用优势度指数、物种多样性指数及Cluster聚类和MDS排序方法,进行群落特征和群落演替情况的。研究。结果表明,该海域共采集大型底栖动物176种,其中优势类群为多毛类。群落中的优势种主要包括短叶索沙蚕和不倒翁虫。烟台近海年平均生物量和丰度分别为16.72g/m~2和1022ind/m~2,且存在季节性差异。丰富度指数(D)、均匀度指数(J)和多样性指数(H')的年平均值分别为2.30、0.70和1.91。烟台近海大型底栖动物群落与底质和水深关系密切。群落特征发生了一定程度的变化,软体动物比例减少,多毛类比例增加。人类活动包括污水排放、养殖和捕捞、港口建设和船舶航运等干扰是导致上述变化的主要原因

甘孜地热发电热力计算及优化

A geothermal well in Ganzi was chosen for the study. To provide a reference for the design and construc?tion of a geothermal plant, power generation techniques were selected and the thermodynamic process was calculat?ed based on cold and heat source dat

Multi-scale display of point data sets at the client side

IEEE GRSS; The Geographical Society of China<span class="MedBlackText">Multi-scale representation of geographic features is one of the research focuses of Geographic Information System (GIS). Most of the work has been done at the server side, especially when dealing with massive lines and polygons data by using spatial database technology. This paper discusses the issue about multi-scale display of point data sets, and presents a solution which is implemented at the client side. This solution overcomes the problem of losing some points of interest and their attribute. It also promotes the efficiency of displaying large point dataset with limited pixels. First, we process the level of details at the client side to avoid communicating with the server side at every scale but only at the first process. This strategy greatly decreases the time consumption in querying the server and network transmission. Second, when doing multi-scale manipulations at the server side (including spatial database), some points at certain scales will lose; some points more or less at certain scales will be disposed. However, by processing at the client side, because it contains all of the point data sets, this problem is solved. At last, this paper designs an adaptive algorithm to resolve the contradiction between small screen area and large point data sets with the tedious overlap phenomenon in displaying. A case study verifies the optimized display effect and improved efficiency of the proposed approach.</span

Periodontal disease as a biofilm infectious disease: a hypothesis : Periodontal therapy by macrolide antibiotic

Caries and periodontal disease are two major oral diseases and are the infectious diseases due to dental plaques which are formed by intraoral bacteria. In 1999, Costerton proposed that they are biofilm infectious diseases. The systemic disorders due to biofilm include cystic fibrosis pneumonia and infective endocarditis. Biofilms are bacterial populations which are enclosed by extracellular matrix produced by bacteria per se and which adhere to each other and/or surfaces or interfaces such as medical devices. Importantly, bacteria in biofilm are resistant to antibiotics. Periodontal disease as a biofilm infectious disease is considered as below. Porphyromonas gingivalis is implicated in the initiation and progression or periodontitis. Periodontal disease-associated bacteria such as Porphyromonas gingivalis formed biofilm in periodontal pockets or on the surface of cementum. Planktonic bacteria from biofilm invade into periodontal tissues and lead to inflammation and destruction of tissues directly and indirectly by elicit host defense mechanism. Supragingival dental plaques are easily removed by professional mechanical tooth cleaning (PMTC), while subgingival biofilm and bacteria invading into periodontal tissues are difficult to be removed. Therefore, the development of novel methods for periodontal disease is needed to eliminate these biofilms efficiently. Recently, we examine the effect of azithromycin to in vitro biofilm model, which is made of Streptococcus gordonii and Porphyromonas gingivalis to confirm these clinical findings in vitro. Our results suggest that pharmacotherapy to destroy biofilm using antibiotics such as erythromycin and azithromycin is effective and necessary for the treatment of periodontal disease. In addition, our group demonstrated that systemic administration of azithromycin is clinically effective to the treatment of early-onset (aggressive) periodontitis and shorten the period of initial preparation. These results suggest that pharmacotherapy to destroy biofilm using antibiotics is effective and necessary for the treatment of periodontal disease