学位论文

The differences of capability enrichment in potassium were very significant between different species of grain amaranths grown on deficient potassium soil after 60 days of seeding and in water culture after transplanting 30 days.

中文题名籽粒苋富钾营养机理研究副题名外文题名 The nutrition mechanism of grain amaranth enrichment in potassium 论文作者李廷轩导师马国瑞学科专业植物营养学研究领域\研究方向学位级别博士学位授予单位浙江大学学位授予日期2003 论文页码总数126页关键词钾营养植物营养富钾基因型籽粒苋馆藏号BSLW /2003 /Q949 /47 1。

Using such key concepts as"aret〓","practice", and"practical reason", critically integrating related theories and thoughts from philosophy, ethics, sociology, psychology, pedagogics, politics, etc. this thesis systematically analyzed public administrator's discretion and professional autonomy, responsibilities, duties and professional virtues, and the theoretical basis and methodology for construction of public administrative ethics.

中文题名行政人的德性与实践副题名外文题名 Administrator's virtues and practice 论文作者李春成导师竺乾威曹沛霖浦兴祖教授学科专业行政管理学研究领域\研究方向学位级别博士学位授予单位复旦大学学位授予日期2002 论文页码总数213页关键词伦理学行政伦理行政管理道德行政裁量权行政人馆藏号BSLW /2003 /B82 /10 本文借用亚里士多德的德性论传统的一些基本概念，包括&德性&、&实践&、&实践理性&，批判性地综合运用哲学、伦理学、行政学、政治学、社会学、心理学、教育学等多学科的相关研究成果，对行政人的裁量权与专业自主性、行政人的责任与义务、行政人应当具备的专业美德、行政伦理建设的依据与方法等基本问题，进行了系统的讨论。

With the rapid developments of science and technology, the modern avion simulation system faces two requirements. One is function requirement and the other is technology renovation requirement. As to the first requirement, functions of modern avion are becoming more and more abundant, which causes the flight simulation training change greatly. As to the second requirement, with the development and adoption of new technology, high verisimilitude requirements are raised to avion simulation system.

中文题名现代军机飞行仿真系统的研究副题名外文题名 A study on modern avion flight simulation system 论文作者黄安祥导师李明陈宗基学科专业导航、制导与控制研究领域\研究方向学位级别博士学位授予单位北京航空航天大学学位授予日期2003 论文页码总数150页关键词军用飞机飞行仿真系统仿真馆藏号BSLW /2003 /V271 /3 随着科学技木的飞速发展，现代军机仿真训练系统面临两大需求：一是功能需求，现代军机功能的增强，使飞行仿真训练内容发生了较大变化；二是技术更新需求，新技术的发展及其在仿真系统中的应用，对军机仿真系统的逼真度提出了更高的要求。

Transition metal borides and inorganic boron-containing compounds, such as TiB〓, BN, B〓C and BP, are one of the most important groups for application in high-temperature performance, electronics and catalysts. Traditionally, they were prepared by high-temperature reactions; however, the products were beyond nanometer scale.

中文题名溶剂热合成硼化物及非金属含硼化合物纳米材料副题名外文题名论文作者谷云乐导师钱逸泰学科专业无机化学研究领域\研究方向学位级别博士学位授予单位中国科学技术大学学位授予日期2003 论文页码总数70页关键词纳米材料硼化物溶剂热合成馆藏号BSLW /2003 /O613 /6 硼化物、非金属含硼化合物功能材料（如硼化钛、氮化硼、碳化硼和磷化硼等）通常具有高硬度、高熔点、机械强度大、高温化学稳定性好等一系列优良性能，有些还具有奇异的光、电、磁、热学性能和催化活性，是一类最富潜力的非氧化物高温结构材料、电子材料和催化材料。

Several tens of superlarge hydrothermal gold deposits related to volcano subvolcanic rocks have been defined in the world since 1980s. It is of great importance, both economically and theoretically, to study this type of gold deposits. The newly discovered Jinchang gold deposit, Heilongjiang Province, is one of this type of gold deposits, which is hosted by breccias bodies that are associated with volcano-subvolcanic rocks. More than 30 t Au resource has been proved after preliminary exploration by the 5〓 Geological Party of Gold Headquarter.

中文题名黑龙江省东宁金厂金矿床综合地质异常及找矿评价副题名外文题名 Comprehensive geological anomaly and exploring evaluation of the Jinchang gold deposit，Dongning，Heilongjiang province 论文作者朱成伟导师崔彬教授学科专业矿物学、岩石学、矿床学研究领域\研究方向成矿系列与成矿预测学位级别博士学位授予单位中国地质大学学位授予日期2001 论文页码总数75页关键词金矿床金厂金矿综合地质异常找矿评价馆藏号BSLW /2003 /P618.51 /5 80年代以来，国内外发现的与火山-次火山有关的浅成热液型特大型金矿床数十处，具有很大的工业价值和找矿前景，对该类型金矿进行深入研究具有重要的理论和实际意义。

Vitrectomy allows us to manage otherwise untreatable ocular pathologies, but the substitution of the vitreous by an artificial intraocular irrigation solution would probably disturb the physiology of the retina and choroids.

中文题名眼内灌注液对视网膜色素上皮细胞凋亡的影响副题名外文题名 The effects of different intraocular irrigating solutions on the apoptosis of RPE cells 论文作者殷春悦导师黎晓新教授学科专业眼科学研究领域\研究方向临床医疗技能训练与研究学位级别博士学位授予单位北京大学学位授予日期2001 论文页码总数94页关键词玻璃体切除术眼科手术细胞凋亡视网膜色素上皮细胞眼内灌注液馆藏号BSLW /2001 /R779.6 /42 随着玻璃体切除术的出现和日益发展，眼内灌注液作为术中使用的玻璃体替代物，直接影响视网膜和脉络膜的正常生理功能。

As the peripheral part of central nerve system, the eye is one of the best-perfused organs in the body. In human and in many animals, the eye has two separate systems of blood vessels that differ anatomically and physiologically: the retinal vessel and cillary vessels. The disorder of fundus circulation take part in pathogenesis of many discases, such as diabetic retinopathy, central serous retinochoroidopathy and glaucoma.

中文题名眼外负压吸引诱导的视乳头微循环变化和意义副题名外文题名 The effect on optic nerve head circulation induced by extraocular-suction 论文作者陆云峰导师褚仁远教授学科专业眼科学研究领域\研究方向学位级别博士学位授予单位复旦大学学位授予日期2002 论文页码总数67页关键词青光眼眼底视神经乳头馆藏号BSLW /2003 /R775 /8 眼底血管系统的功能紊乱和多种疾病的发生相关，如糖尿病视网膜病变、中心性浆液渗出性视网膜脉络膜病变以及青光眼等。

Materials and Methods Thirty SD rats, feeding in clearing grade standard, were classified into five groups at random. Application of transmission electron microscopy, scanning electron microscopy, light microscopy and immunohistological staining meth- ods, normal morphology of outflow pathways was observed and component of extra cel- lular matrix was defined. The effects of 50 IU of TNF-α given intracamerally on the morphology of outflow pathways and other tissues of anterior segments, expression of trabecular stromelysin and the change of components of trabecular extra cellular matrix were observed in 24h, 3days, 7days and 14days after injection.

中文题名TNFα对鼠眼房水外流影响的形态学观察副题名外文题名 The effect of TNFα on morphology of outflow pathways in rat eyes 论文作者王大博导师王竫华教授学科专业眼科学研究领域\研究方向学位级别博士学位授予单位青岛大学学位授予日期2002 论文页码总数90页关键词青光眼房水外流通道肿瘤坏死因子-α馆藏号BSLW /2003 /R775 /1 目的在观察SD大鼠眼房水外流通道形态及确定其房水外流通道细胞外基质成份的基础上，探讨房水中肿瘤坏死因子α浓度的增加是否能诱导小梁细胞基质溶解素的表达和分泌，进而启动小梁细胞外基质的重塑过程。

In this dissertation the"Penalty"finite element method was employed to compute the velocity of the three-dimensional flow of power-law fluid in a profile die. In order to decrease the needed computer memory and raise the stability of numerical simulation, a set of decoupled methods such as PFEM, pseudo-body force method and transformation of momentum equation to the elliptic equation was developed to establish the general finite element equations to compute the distributions of velocity and viscoelastic stress of the three-dimensional viscoelastic flow of the Phan ThienTanner fluid in a profile die. During numerical simulation of the extrudate swell of the PTT fluid, the flow in the die and out of the die was analyzed separately, which demands less computer memory. The key techniques used in numerical simulation of the three-dimensional extrusion from dies such as decision of boundary conditions, creation of initial velocity field, selection of penalty factor, high Weissenberg number problem , regeneration of the free surface were studied in detail.

中文题名聚合物异型材口模挤出三维流动研究副题名外文题名 Study on three-dimensional flow of polymer melts during the process of profile extrusion from dies 论文作者涂志刚导师柳和生包忠诩教授学科专业材料加工工程研究领域\研究方向学位级别博士学位授予单位南昌大学学位授予日期2001 论文页码总数148页关键词挤出成型聚合物材料挤出口模聚合物异型材馆藏号BSLW /2003 /TQ320 /9 本文建立了求解挤出口模内幂律流体流动速度场的通用三维罚有限元模型；对于非线性粘弹性的Phan Thien-Tanner流体，为了降低模拟计算对计算机硬件的要求，并使模拟计算更加稳定，采用了一种去耦算法，包括罚有限元方法、拟体力方法和动量方程的椭圆类方程转化方法，并建立了求解速度场和粘弹性应力场的总体有限元方程；对于PTT流体的挤出胀大问题，提出了挤出胀大熔体口模内外分离模拟法，这样可以显著降低数值模拟对计算机硬件的要求。

It is revealed that natural diamonds may contain as much as 59 different trace elements. The concentration of each trace element is above 1 ppm(10〓). However, the major impurities are nitrogen, hydrogen, oxygen and boron. The study of the forms of hydrogen in diamonds not only enriched the contents of mantle mineralogy, material sciences and gemology, but also provided some important informations for dealing with some problems concerning the Earth's mantle and core.

中文题名金刚石中氢的赋存状态研究副题名外文题名 The existing states of hydrogen in diamonds 论文作者杨志军导师谢先德研究员彭明生教授学科专业矿物学、岩石学、矿床学研究领域\研究方向学位级别博士学位授予单位中国科学院广州地球化学研究所学位授予日期2002 论文页码总数10，113页关键词空隙氢晶格氢金刚石馆藏号BSLW /2003 /P57 /1 天然金刚石中的微量元素达59种之多，其含量都在10〓级规模以上，且最主要的杂质元素为氮、氢、氧和硼等。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新