mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
“HY-1”卫星COCTS水色遥感器精确瑞利散射算法研究

“HY-1”卫星是我国自主研制发射的第一颗海洋卫星，水色遥感器COCTS具有8个可见光（412，443，490，520，565，670nm）、近红外通道（750，865nm）以及2个热红外通道（10．30～11．40，11．40～12．50μm）．COCTS遥感器上采用了多元并扫技术用以提高遥感器的信噪比和探测灵敏度，但是由于并扫会带来像元旋转的问题，于是我国“HY-1”卫星水色遥感器COCTS上采用了K镜消旋技术，而K镜消旋技术带来的一个消极影响是偏振响应很大，通过发射前实验室监测结果发现其值达到了8％．在这种情况下必须采用带偏振的大气修正算法对遥感信号进行修正，使COCTS水色二级产品（叶绿素、悬浮泥沙和黄色物质等）能够达到用户的指标要求。
血管内介入治疗15例颅内静脉窦血栓形成

目的 探讨血管内介入治疗颅内静脉窦血栓形成的疗效。方法 自2004—03～2006—03收治15例抗凝治疗无效的颅内静脉窦血栓形成患者，均行血管内介入治疗，其中12例行血管内介入局部静脉窦溶栓和机械性破栓治疗，3例行血管内介入局部静脉窦溶栓和机械性破栓及动脉溶栓治疗。结果 出院前12例患者腰椎穿刺时颅内压达正常，血管造影或MRV检查证实，12例患者静脉窦主干通畅，皮层静脉和深静脉恢复正常；3例部分再通，皮层静脉和深动脉部分代偿。出院时14例患者的症状、体征都得到改善，其中头痛消失11例，轻度头痛3例，失明1例。1例症状无改善。结论 血管内介入治疗是颅内静脉窦血栓形成安全、有效的治疗手段。
健胃消食胶囊质量标准的研究

目的：建立健胃消食胶囊的质量标准。方法：采用TLC法对处方中山楂、太子参、陈皮进行鉴别；用高效液相色谱法测定橙皮苷的含量。结果：在TLC色谱中检出陈皮、山楂、太子参；橙皮苷在0．92-4．6μg范围内显良好的线性关系，r=0．9999，平均回收率98．66％，RSD为0．85％。结论：所建立的方法简便可行，重现性好，为健胃消食胶囊质量控制提供了方法。
黄芩光合作用日变化特征的研究

目的：研究黄芩净光合速率的日变化特性，为黄芩栽培提供参考。方法：利用Li-6400便携式光合作用系统测定一天中不同时段、不同光合有效辐射下的净光合速率，以及光合速率的环境因子的日变化。结果：黄芩光饱和点为1305 μmol·m^-2·s^-1“；光补偿点为93斗μmol·m^-2·s^-1；净光合速率日变化呈双峰曲线，有典型的“午休”现象。经相关性分析，净光合速率与光合有效辐射、蒸腾速率、气孔导度之间呈正相关，与胞间CO2浓度呈负相关，与相对湿度的相关性不显著。结论：黄芩的光合特性表明为典型的阳性植物，对光照的适应性较强，在生产上，选择光照条件好的地块，并加大种植密度，以提高黄芩的产量。
妇清雪莲栓的临床前安全评价研究

目的：妇清雪莲栓的临床前安全性，给临床试验提供参考。方法：进行大鼠阴道内一日给药6次总剂量926mg／kg的急性毒性试验。重复给药毒性试验中，大鼠按体重随机分为基质对照组和三个不同剂量给药组（76．8，155．2，308．8mg／kg），经阴道给药，1日2次，连续给药30天。结果：大鼠阴道内一日给药926mg／kg（约为临床拟用量的192倍），未见明显急性毒性作用。阴道内给药30天的无毒反应剂量为76．8mg／kg（约为临床拟用量的16倍）；给药达155．2mg／kg（约为临床拟用量的32倍）或以上，可能出现血小板数轻度下降；给药达308．8mg／kg（约为临床拟用量的64倍），除血小板数轻度下降外，还可能出现体重增长缓慢。各脏器未见明显组织学改变。对阴道粘膜无明显的刺激性作用。结论：妇清雪莲栓未见明显急性毒性作用，其重复给药的毒性作用是可逆性的，停药后可恢复，未观察到延迟性毒性作用。
黄芪种质资源调查报告

黄芪原植物为膜荚黄芪Astragalus membranaceus（Fisch．）Bge．和蒙古黄芪A．membranaceus（Fisch．）Bge．var．mongholicus（Bge）．Hsiao，野生资源几近枯竭，1970年始有栽培。本研究从查阅文献人手，结合市场产销信息和网络信息，调查重点放在栽培品种、产量、质量、抗性及形态特殊的群体和个体。调查发现黄芪种植区近年发生了很大变化，种子来源复杂、混杂情况严重，野生种质也较难采得。此外，目前品种选育工作薄弱，栽培地区大多缺乏规范的栽培管理和适当的病虫害防治技术等问题，亟待重视和加强。
刀具测量装置的正确使用

随着加工中心的广泛使用，许多用户也开始使用刀具测量装置。它不仅可以检测刀具的磨损情况，而且可实现自动补偿（通过修改刀补值实现），极大的提高了加工效率和精度。另外，同时使用其刀具破损检测功能与刀具寿命管理功能，还可以实现自动寻找同组刀具的功能，节约了刀具检查和更换的时间。但由于用户对测量原理不是很了解，使用时容易产生误区，有时补偿后的精度反而不如补偿前，这就使用户产生了迷惑，限制了测量装置的广泛使用。本文以英国雷尼绍（RENISHAW）公司TS27R测头的安装调试为例，就如何更好的使用刀具测量装置做一详细介绍，供读者参考借鉴。
HIWIN LM直线电动机在半导体业中的应用

直线电动机除具有高速、高精度的特点外，还有低磨耗、无背隙、结构简单、单轴多动子控制，运动平稳及行程无限等优点；近年来广泛应用于平面液晶显示器、半导体集成电路、印刷电路板、太阳能等高科技生产设备上。如平面液晶显示器的面板检测机、激光修补机，印刷电路板的插件机、电路板钻孔机、组件／电路板检测机、半导体集成电路的焊线机、粘晶机、晶圆检测机、晶圆激光切割机、精密注胶机，以及太阳能发电面板生产及检测设备。
领域特征分析建模的研究及应用

文中详细探讨了特征和特征的表现机制、特征模型的建立,介绍了面向特征的领域分析方法,并将这种方法应用在集团化企业供应物流领域建模中,通过对集团化企业供应物流的详细分析,建立了供应物流领域的特征模型.
基于SALT平台上的一电子商务网站设计与实现

本文介绍了一个基于SALT平台上的电子商务网站的设计及实现方案.该网站采用人机自然交互的全新语音技术,利用Agent技术引入的能说话的虚拟人物来引导用户购物.另外,该网站的热线服务还实现了智能无人值守,节约了网站的运营成本提升了电子商务企业的核心竞争力.利用这种技术还可使得某些生理缺陷的用户也能享受购物的快乐,这极大的改变了他们的生活.
概念格在Web日志挖掘中的应用

概念格作为一种用于数据组织和数据分析的形式化工具,有着广阔的应用领域,如信息检索、数字图书馆、软件工程、数据挖掘等方面.先对概念格进行了简单的介绍,然后讨论了Web日志挖掘过程的两个重要阶段:数据预处理和模式发现,并将概念格应用于模式发现以进行频繁页面之间的关联规则挖掘和频繁访问路径挖掘,减少了候选项集的产生,可有效提高挖掘效率.
基于Delphi的数字地图投影功能的实现

20世纪80年代后，地理信息系统和数字地图技术广泛应用于各个领域。地图投影是数字地图的计算机实现所特有的问题，文章以摩尔威特投影为例，论述了数字地图投影坐标计算功能的DeIphi程序实现过程。
麻醉临床信息系统的设计与应用

本文在充分调查临床麻醉过程中各种操作的现状和对信息技术应用的期求之后，给出了临床麻醉系统的需求说明．确定了临床麻醉系统设计目标，构建出系统的结构，给出了系统的功能描述，以及与医院信息系统整体集成的情况。最后介绍了系统的实际应用情况。
乙型肝炎病毒DNA等温扩增体系的建立

当前乙型肝炎病毒(HBV)的全球感染形势依然严峻,流行病学评估目前世界上有4亿多慢性感染者,高流行区域如我国人群感染率>15%,基因型分布以B、C型为主.HBV的病毒载量与感染状态密切相关,寻求快速、简便、灵敏、特异的定量手段是对HBV早期诊断、病程监控及流行病学调查的需求.本研究在Notomi T的环介导等温扩增(LAMP)技术基础上,建立起HBV DNA等温扩增的定量检测体系.
佛山市南海区大葱生产技术规程

根据佛山市南海区大葱生产的实际情况,以规范栽培、肥料和农药的使用等为主要内容,制定较全面的大葱生产技术规程.该规程在生产上推广应用可提高大葱的质量及市场竞争力.
有机农业生产中的害虫种群生态控制技术

病虫害控制是有机农业农产品生产中最重要的环节,有机农业生产中可供使用的害虫控制技术和措施主要包括植物检疫、农业耕作、抗性品种利用、生物防治技术、昆虫性信息技术、天然植物保护剂、生物源及矿物源杀虫剂以及害虫的信息化管理技术等.
姜花属种间杂交育种研究初报

研究结果表明, 采用观赏性强的金姜花与具芳香性、抗寒性优良特点的白姜花进行正反交, 均能杂交成功,其中金姜花×白姜花F1代植株己开花,与两亲本相比,在生长势和成熟期方面表现出较明显的杂种优势,其花瓣淡黄色、花朵芳香美丽,适于园林布置或生产切花.
头孢克肟治疗女性急性单纯性尿路感染38例临床分析

目的 分析头孢克肟(CFIX)治疗女性急性单纯性尿路感染的有效性和安全性.方法 采用随机对照方法,将72例急性单纯性尿路感染患者分成两组.其中38例给予CFIX每天400 mg,34例给予阿莫西林/克拉维酸钾(AMPC/CA)每天625 mg,均分2次口服,疗程7 d.结果 两组临床痊愈率和有效率分别为71.1%、92.1%和73.5%、94.1%;细菌清除率分别为95.0%和97.1%;不良反应发生率分别为5.3%和2.9%.结论 CFIX治疗女性急性单纯性尿路感染安全、有效.
Positive Solutions for Second-Order m-Point Boundary Value Problems on Time Scales

Let T be a time scale such that 0, T ∈ T. By means of the Schauder fixed point theorem and analysis method, we establish some existence criteria for positive solutions of the m-point boundary value problem on time scales where α ∈ Ctd（（O,T,[0,∞））,f∈ Ckd（[0,∞）×[0,∞））,β,γ ∈[0,∞）,ξi ∈（0,p（T）.b,ai∈ （0,∞） （for i = 1,..., m - 2） are given constants satisfying some suitable hypotheses. We show that this problem has at least one positive solution for sufficiently small b 〉 0 and no solution for sufficiently large b. Our results are new even for the corresponding differential equation （T = R） and difference equation （T = Z）.
Fractional-Linear Transformations of Operator Balls; Applications to Dynamical Systems

The operator sets, which are the subject of this paper, have been studied in many papers where, under different restrictions on the generating operators, convexity, compactness in the weak operator topology, and nonemptiness were proved for sets of different classes under study. Then the results obtained were used in these papers to solve several applied problems. Namely, they played the key role in establishing the dichotomy of nonautonomous dynamical systems, with either continuous or discrete time. In the present paper, we generalize and sharpen the already known criteria and obtain several new criteria for convexity, compactness, and nonemptiness of several special operator sets. Then, using the assertions obtained, we construct examples of sets of the form under study which are nonconvex, noncompact in the weak operator topology, as well as empty, and are generated by ＂smooth＂ operators of a special class. The existence problem for such sets remained open until the authors of this paper announced some of its results.
Hilbert Space of Probability Density Functions Based on Aitchison Geometry

The set of probability functions is a convex subset of L1 and it does not have a linear space structure when using ordinary sum and multiplication by real constants. Moreover, difficulties arise when dealing with distances between densities. The crucial point is that usual distances are not invariant under relevant transformations of densities. To overcome these limitations, Aitchison＇s ideas on compositional data analysis are used, generalizing perturbation and power transformation, as well as the Aitchison inner product, to operations on probability density functions with support on a finite interval. With these operations at hand, it is shown that the set of bounded probability density functions on finite intervals is a pre-Hilbert space. A Hilbert space of densities, whose logarithm is square-integrable, is obtained as the natural completion of the pre-Hilbert space.
One-regular Normal Cayley Graphs on Dihedral Groups of Valency 4 or 6 with Cyclic Vertex Stabilizer

A graph G is one-regular if its automorphism group Aut（G） acts transitively and semiregularly on the arc set. A Cayley graph Cay（Г, S） is normal if Г is a normal subgroup of the full automorphism group of Cay（Г, S）. Xu, M. Y., Xu, J. （Southeast Asian Bulletin of Math., 25, 355-363 （2001）） classified one-regular Cayley graphs of valency at most 4 on finite abelian groups. Marusic, D., Pisanski, T. （Croat. Chemica Acta, 73, 969-981 （2000）） classified cubic one-regular Cayley graphs on a dihedral group, and all of such graphs turn out to be normal. In this paper, we classify the 4-valent one-regular normal Cayley graphs G on a dihedral group whose vertex stabilizers in Aut（G） are cyclic. A classification of the same kind of graphs of valency 6 is also discussed.
The Theory of Finite Models without Equal Sign

In this paper, it is the first time ever to suggest that we study the model theory of all finite structures and to put the equal sign in the same situtation as the other relations. Using formulas of infinite lengths we obtain new theorems for the preservation of model extensions, submodels, model homomorphisms and inverse homomorphisms. These kinds of theorems were discussed in Chang and Keisler＇s Model Theory, systematically for general models, but Gurevich obtained some different theorems in this direction for finite models. In our paper the old theorems manage to survive in the finite model theory. There are some differences between into homomorphisms and onto homomorphisms in preservation theorems too. We also study reduced models and minimum models. The characterization sentence of a model is given, which derives a general result for any theory T to be equivalent to a set of existential-universal sentences. Some results about completeness and model completeness are also given.
Ideal-comparability over Regular Rings

We introduce the concept of ideal-comparability condition for regular rings. Let I be an ideal of a regular ring R. If R satisfies the I-comparability condition, then R is one-sided unit-regular if and only if so is R/I. Also, we show that a regular ring R satisfies the general comparability if and only if the following hold： （1） R/I satisfies the general comparability; （2） R satisfies the general I-comparability condition; （3） The natural map B（R） → B（R/I） is surjective.
Additive Maps Preserving Similarity of Operators  on Banach Spaces

Let X be an infinite-dimensional complex Banach space and denote by B（X） the algebra of all bounded linear operators acting on X. It is shown that a surjective additive map Φ from B（X） onto itself preserves similarity in both directions if and only if there exist a scalar c, a bounded invertible linear or conjugate linear operator A and a similarity invariant additive functional ψ on B（X） such that either Φ（T） = cATA^-1 ＋ ψ（T）I for all T, or Φ（T） = cAT＊A^-1 ＋ ψ（T）I for all T. In the case where X has infinite multiplicity, in particular, when X is an infinite-dimensional Hilbert space, the above similarity invariant additive functional ψ is always zero.
会计国际趋同及国外相关组织近期动态

国际会计准则理事会10月和11月会议议题国际会计准则理事会（IASB）分别于10月16日至19日和11月16日至17日在伦敦举行了理事会10月和11月会议，主要讨论了以下议题：《国际会计准则第24号——关联方披露》、金融工具、企业合并第二阶段、保险、财务报表列报、退休后雇员福利、服务特许权协议、收入确认、采掘活动、中小主体会计准则、概念框架、短期趋同项目：分部报告、借款费用及合营。
研究新问题 实现新跨越--会计新领域和新问题专题研讨会会议综述

为了推动会计新领域和新问题的研究，由中国会计学会会计新领域专业委员会及环境会计专业委员会主办、重庆工学院承办、重庆市会计学会协办的“会计新领域和新问题”专题研讨会于2006年10月28日在重庆举办。参加会议的有来自全国20多所高校、政府部门、研究机构等的40多名专家学者。本次研讨会共收到论文88篇，确定入选论文42篇。重庆工学院副院长孙芳城教授主持了研讨会开幕式。研讨会主题报告由中国会计学会会计新领域专业委员会主任、中国人民大学戴德明教授主持，研讨会采用主题报告与分组自由讨论相结合的方式，围绕公司治理、投资者保护会计，环境会计与社会责任会计，价值链会计等议题进行了广泛而热烈地讨论，取得了良好的效果。本文对这次会议的主要观点作一综述。[第一段]
Independent continuous mapping for topological optimization of frame structures

Based on the Independent Continuous Mapping method (ICM), a topological optimization model with continuous topological variables is built by introducing three filter functions for element weight, element allowable stress and element stiffness, which transform the 0-1 type discrete topological variables into continuous topological variables between 0 and 1. Two methods for the filter functions are adopted to avoid the structural singularity and recover falsely deleted elements: the weak material element method and the tiny section element method. Three criteria (no structural singularity, no violated constraints and no change of structural weight) are introduced to judge iteration convergence. These criteria allow finding an appropriate threshold by adjusting a discount factor in the iteration procedure. To improve the efficiency, the original optimization model is transformed into a dual problem according to the dual theory and solved in its dual space. By using MSC/Nastran as the structural solver and MSC/Patran as the developing platform, a topological optimization software of frame structures is accomplished. Numerical examples show that the ICM method is very efficient for the topological optimization of frame structures.
Interactions of Penny-shaped Cracks in Three-dimensional Solids

The interaction of arbitrarily distributed penny-shaped cracks in three-dimensional solids is analyzed in this paper. Using oblate spheroidal coordinates and displacement functions, an analytic method is developed in which the opening and the sliding displacements on each crack surface are taken as the basic unknown functions. The basic unknown functions can be expanded in series of Legendre polynomials with unknown coefficients. Based on superposition technique, a set of governing equations for the unknown coefficients are formulated from the traction free conditions on each crack surface. The boundary collocation procedure and the average method for crack-surface tractions are used for solving the governing equations. The solution can be obtained for quite closely located cracks. Numerical examples are given for several crack problems. By comparing the present results with other existing results, one can conclude that the present method provides a direct and efficient approach to deal with three-dimensional solids containing multiple cracks.
The ICM method with objective function transformed by variable discrete condition for continuum structure

ICM （Independent Continuous Mapping） method can solve topological optimization problems with the minimized weight as the objective and subjected to displacement constraints. To get a clearer topological configuration, by introducing the discrete condition of topological variables and integrating with the original objective, an optimal model with multi-objectives is formulated to make the topological variables approach 0 or 1 as near as possible, and the model reduces the effect of deleting rate on the result. The image-filtering method is employed to eliminate the checkerboard patterns and mesh dependence that occurred in the topology optimization of a continuum structure. The computational efficiency is enhanced through selecting quasi-active displacement constraints and a design region. Numerical examples indicate that this algorithm is robust and practicable, though the number of iterations is slightly increased with respect to the original algorithm.
多功能污水处理剂的合成和应用

以含1～4个羟基的有机醇、环氧氯丙烷和有机胺为原材料,在催化剂作用下聚合而成的聚醚型有机胺盐(KL-1),具有浮选净化、杀菌、脱色、缓蚀的功能.通过室内和现场试验表明,KL-1不仅有良好的污油、固体悬浮物去除效果,而且有较好的杀菌和缓蚀性能,是一种具有广泛应用前景和良好经济效益的多功能污水处理剂.
气井变流量试井工艺技术

针对气井关井难或不宜采用关井测压状况,探讨气井变流量试井新方法,介绍了气井变流量切换装置的组成和工作原理,分析了系统的可靠性,给出了现场测试工艺步骤,对现场测试实例进行了详细分析,能及时取得气藏可靠的压力资料及地层参数,为气田动态分析和方案调整提供有价值的资料.
潜江盆地应城区块盐井固井技术

分析了盐井固井难点,进行了盐井固井水泥浆体系的研究,优选出了盐井固井水泥浆体系,总结出了下漏上涌盐井的固井工艺,有效地提高了盐井固井质量,延长了盐井开采寿命.
河南油田录井技术应用主要问题探讨

河南油田加强了录井新技术的引进和应用,解决了录井工作中遇到的问题和难题,特别是在对加有有机添加剂的钻井液影响现场录井的处理,对异常高压地层的录井预测,对"三低"储层油气层显示的录井识别,对PDC钻头下岩性识别难题的处理,对现场油气层录井的快速评价等方面取得了良好效果.
塔东地区英东2井钻探成果分析及其意义

英东2井为英吉苏凹陷阿拉干-英东构造带上英东2号构造高点上的一口预探井,该井在寒武系获得少量油气,但钻后分析研究表明,该井有3大重要发现.①首次在塔东地区发现上寒武统溶蚀孔洞型白云岩储层,②首次在塔东地区发现仍处于生油窗晚期阶段的烃源岩,③首次在塔东地区发现气洗沥青和天然气干气.这3大发现为下步勘探指明了方向.认为在塔东地区进行下古生界碳酸盐岩内幕勘探,寻找溶蚀孔洞型白云岩是基础,该层系找油,寻找生油窗晚期阶段的烃源岩是根本;而下古生界碳酸盐岩、碎屑岩和侏罗系碎屑岩天然气的勘探,成藏条件的良好匹配是关键.
中国煤层气资源开发的关键性问题及前景

讨论了煤层气开发的关键地质控制因素和煤层气开发新技术,分析了煤层气地质研究面临的问题.认为煤层气成藏的地质过程与动力学机制、煤层气储集系统与聚散机制、煤层气藏经济高效开发的场效应是当今煤层气资源地质研究的主要问题,今后要加强这些方面的研究.
The Construction of a Class of Compactly Supported Orthogonal Matrix-valued Wavelets

In this paper, we introduce matrix-valued multiresolution analysis and orthogonal matrix-valued wavelets. We obtain a necessary and sufficient condition on the existence of orthogonal matrix-valued wavelets by means of paraunitary vector filter bank theory. A method for constructing a class of compactly supported orthogonal matrix-valued wavelets is proposed by using multiresolution analysis method and matrix theory.
Extraction of indium from indium-zinc concentrates

A new process for extracting indium from indium-zinc concentrates was proposed. The process can directly extract indium from removed copper solution by D2EHPA, and cancel the stage of removing iron in the traditional process because of using iron and part of zinc in the In-Zn concentrates for direct preparing high quality Mn-Zn soft magnetic ferrites. The technologies in the processes, such as leaching the neutral leached residues with high concentrated acid at high temperature, reduction ferric and removing copper, and extracting indium, were investigated. The results show that total recovery ratio of indium is increased from less than 70% in the traditional process to more than 95%. This process has the advantages of largely simplifying the procedure of indium extraction, zero draining off of iron residue and zero emitting of SO2. So this is a clean production process.
Growth behavior of interfacial compounds in galvanized steel joints with CuSi3 filler under arc brazing

The galvanized steels were joined using a TIG arc brazing process with CuSi3 as the filler metal. The arcing time ranged from 1 s to 5 s with arcing current of 70 A in flowing argon. The possible reaction products at the interface were confirmed using thermodynamics, SEM, and EDS methods. The results show that a fragmention behavior in some whisker-like intermetallic compounds happens, and that there are two layers of Fe_2Si and Fe_5Si_3 formed at the interface of the galvanized steel and copper filler.From this, the schematic cycle of the interface growth behavior of Fe/Si compounds and the fragmentation behavior of whisker-like intermetallic compounds are developed.
Correlation analysis on partition of rare earth in ion-exchangeable phase from weathered crust ores

The rare earth(RE) in weathered crust ores mainly exists as ion-exchangeable phase, approximately 80%. The correlation analysis on partition of 376 samples in ion-exchangeable phase from weathered crust ores was conducted. The results show that partition both among heavy RE elements and light RE elements with high partition appears positive correlation, but partition sums between the heavy RE elements and the light RE elements appear close negative correlation obviously. Clear negative correlations exist between the light RE elements (except Ce) and yttrium(Y). Matrix of correlation analysis on this partition can be divided into three zones. The correlated coefficient variation from negative to positive in zones B and C occurs at Gd, so does that in zones B and A (except Ce, Eu, and Sm), suggesting that RE elements can be divided into two groups with Gd as border. This phenomenon is called Gadolinium-broken effect.
Preparation of ITO transparent conductive film by sol-gel method

The ITO transparent conductive films were prepared on substrate of quartz glass by sol-gel method. The raw materials were nitrate indium, acetylacetone and the dopant of anhydrous chloride (SnCl_4). The process from gel to crystalline film and the microstructure of the films were investigated by DTA-TG, XRD and SEM. The influence of preparation processes on the electricity performance of the films was also studied by four-probe apparatus. The results show that the crystallization process of ITO xerogel completes when the heat treatment temperature reaches 600 ℃. The ITO films possesses on vesicular structures accumulated by spherical particles, and both heat treatment temperature and cooling rate have important effects on the resistivity ofITO films.
Two-dimensional cellular automaton model for simulating structural evolution of binary alloys during solidification

Two-dimensional cellular automaton(CA) simulations of phase transformations of binary alloys during solidification were reported. The modelling incorporates local concentration and heat changes into a nucleation or growth function, which is utilized by the automaton in a probabilistic fashion. These simulations may provide an efficient method of discovering how the physical processes involved in solidification processes dynamically progress and how they interact with each other during solidification. The simulated results show that the final morphology during solidification is related with the cooling conditions. The established model can be used to evaluate the phase transformation of binary alloys during solidification.
Measurement and analyses of molten Ni-Co alloy density

With the advent of powerful mathematical modeling techniques for material phenomena, there is renewed interest in reliable data for the density of the Ni-based superalloys. Up to now, there has been few report on the density of molten Ni-Co alloy.In order to obtain more accurate density data for molten Ni-Co alloy, the density of molten Ni-Co alloy was measured with a modified sessile drop method, and the accommodation of different atoms in molten Ni-Co alloy was analyzed. The density of alloy is found to decrease with increasing temperature and Co concentration in the alloy. The molar volume of molten Ni-Co alloy increases with increasing Co concentration. The molar volume of Ni-Co alloy determined shows a positive deviation from the linear molar volume, and the deviation of molar volume from ideal mixing increases with increasing Co concentration over the experimental concentration range.
Recrystallization behavior of high purity aluminum at 300 ℃

The recrystallization behavior of 98.5% cold rolled high purity aluminum foils annealed at 300 ℃ was investigated, and the evolution of the microstructures was followed by electron back scattered diffraction(EBSD). The results show that the recrystallization process of the high purity aluminum foils at 300 ℃ is a mixture of discontinuous- and continuous-recrystallization.The orientations of the recrystallization nuclei include not only the cube orientation, but also other orientations such as some near deformation texture components which are the results of strong recovery process. However, such continuously recrystallized grains are usually associated with relatively high free energy, so they would be consumed by the discontinuously-recrystallized grains (cube-oriented grains) in subsequent annealing. On the other hand, the pattern quality index of recrystallized grains shows dependence on the crystal orientation which might introduce some errors into evaluating volume fraction of recrystallization by integrating pattern quality index of EBSD.
ANALYTICAL SOLUTION OF FILLING AND EXHAUSTING PROCESS IN PNEUMATIC SYSTEM

The filling and exhausting processes in a pneumatic system are involved with many factors, and numerical solutions of many partial differential equations are always adapted in the study of those processes, which have been proved to be troublesome and less intuitive. Analytical solutions based on loss-less tube model and average friction tube model are found respectively by using fluid net theory, and they fit the experimental results well. The research work shows that： Fluid net theory can be used to solve the analytical solution of filling and exhausting processes of pneumatic system, and the result of loss-less tube model is close to that of average friction model, so loss-less tube model is recommended since it is simpler, and the difference between filling time and exhausting time is determined by initial and final pressures, the volume of container and the section area of tube, and has nothing to do with the length of the tube.
RESEARCH ＆ DESIGN OF 60 kW SOFT-SWITCHING PLASMA CONVERTER

A novel 60 kW plasma converter with full range soft-switch by utilizing magnetizing inductance, leakage inductance and distributed inductance is introduced. The current injection phase-shifting technique is introduced into the research of soft-switching plasma converter successfully. The magnetic bias of transformer and the protection of switching parts are solved. The tests state that the power supply has excellent characteristics and higher efficiency and can meet the demand of large power plasma process well.