三峡库区巫山移民新城址松散堆积体成因机制研究

以巫山移民新城址松散堆积体成因类型为例 ,对三峡库区分布较广的松散堆积体进行了研究。通过对大量新开挖剖面的调查测绘 ,在许多地段发现了堆积与基岩之间的滑坡主滑带 ,说明了在该区分布较广的松散堆积体成因具有复合性。它是构造和岩溶作用前提下形成的滑坡体、崩塌体、泥石流堆积体和岩溶坍陷堆积体。运用高分辨率浅层地震勘探揭示堆积体发育深度可达 40 m至 6 0 m ,通过面波测试可按波速将之划分为三层。最后 ,建立了松散堆积体形成演化的概念模型 ,并运用目前最新版本的离散元软件 (UDEC3.0 )对其中最为重要的一种类型滑崩堆积体的形成演化过程进行了模拟。结果表明 ,该区的层状岩体在长江河流下切过程中 ,形成了区域性的卸荷松动 ,而在岩体下部形成压碎张裂带 ;地下水沿卸荷拉裂带渗入 ,并与压裂带贯通 ,形成了岩溶发育带 ,为滑坡、崩塌、塌陷等表生改造提供了条件。     

论古汉语两类被动式的特点

文章从语意、结构独立性及其造句功能、语气等方面考察两大类被动式的特点，文章认为，一类重在客观性叙述，强调客观事实，且多是已然之事，即使是末然之事，亦非主观意愿，它的独立性及其造句功能较强，可独立成句，也可充当句子成份，可带补，宾语，也可接受状语修饰，除不用于目的句及极少用于选择句外，可带补、宾语、也可接爱状语修饰，除不用于目的句及极少用于选择句外，可用于其他任何复句；语气多为确定不移或确认语气，也可用疑问或反问语气；一类重在主观性陈说，强调主观意愿，绝非客观事实；它的独立性及其造句功能较差，不能独立成句，一般只能用于假设句，目的句及让步句中，不能用于其他语境，语气多为祈使语气。     

Some considerations on biomaterials and bone

Osteoinduction is a property not traditionally attributed to Calcium Phosphate ceramics. Histologic, SEM and X-ray microanalyses of a biopsy of pulmonary alveolar microlithiasis allow to discredit this opinion. Bone, even lamellar type, was ectopically formed on microliths undergoing osteoclastic erosion. The SEM and X-ray microanalyses of coral granules implanted in humans indicate an osteoconductive property for both Calcium and Phosphorus. Analysis of in vitro allows to propose an enhancement of the osteocapability of coral. Lamellar bone formation in the near absence of loads undermines the opinion which sees a correlation between lamellar bone and mechanical loads. Analysis of the bone surrounding an uncemented titanium hip prosthesis highlights that both remodeled and newly formed bone have lamellae oriented parallel to prosthesis surfaces, i.e. orthogonal to loads, as opposed to that of lamellar bone of osteons which are oriented parallel to loads. Analysis of longitudinal sections of cortical bone under polarized light points out that lamellae are displaced parallel to the cement line surface both in the conic end of osteons and in Volkman's canals with thick wall, i.e. undergoing sloped load directions. In conclusion, there may be a relationship between lamellae formation and gravity.     

汉语动宾谓语句的形式刻画

运用认知范畴论的观点对动宾谓语句作类典型和非类典型的划分,着力分析这两类语句的不同特征;在此基础上,作者借助一阶谓词逻辑、类型论、λ演算等工具,对汉语类典型动宾谓语句与两种非类典型动宾语句作初步的形式刻画。     

基于句法语义规则系统的比较句自动识别

针对汉语比较句的自动识别, 提出一种基于句法语义规则的方法。将比较标记和比较结果做为识别比较句的关键因素, 归纳汉语比较句的类别, 书写比较句识别规则, 同时设计4个模型进行分类识别。实验结果表明, 规则系统可以有效地实现汉语比较句的句法分析和自动识别, 为比较关系的抽取打下良好的基础。     

Grinding Characteristics Of Directionally Aligned SiC Whisker Wheel - Comparison With A12O3 Fiber Wheel

A unique SiC whisker wheel was invented, in which the whiskers were aligned normally to the grinding wheel surface. In this paper, grindabilities of the SiC whisker wheel are investigated and compared with those of other wheels of SiC grains, Al2O3 grains, as well as Al2O3 long and short fibres which were also aligned normally to the grinding wheel surface, respectively. The main research contents concern grinding characteristics of a directionally aligned SiC whisker wheel such as material-removal volume, wheel-wear rates, integrity of the ground surfaces, grinding ratios and grinding efficiency. Furthermore, grinding wheels of whiskers and fibres have a common disadvantage: they tend to load easily. The authors have proposed a simple method of loading-free grinding to overcome this propensity and investigate some related grinding characteristics under loading-free grinding conditions.     

汉字最高阶条件熵及其实验测定

在文字的信息熵中，最高阶条件熵的最本质的，最重要的，是度量文字信息量的主要依据。本文论述了汉字最高阶条件熵的基本内涵和数学模式，以及最高阶条件熵与句熵的内在联系，结合汉字在语言中的实际使用情况，提出了在汉语句子的基础上，通过可控的，顺序猜字试验，求出试验句子的句熵与对应的最高阶条件熵的方法，并建立了为之服务的计算机测试系统，初步试验证明，机测系统是成功的，取得的数据是可靠的。     

Fragments of Arithmetic and true sentences

By a theorem of R. Kaye, J. Paris and C. Dimitracopoulos, the class of the Π_n+1‐sentences true in the standard model is the only (up to deductive equivalence) consistent Π_n+1‐theory which extends the scheme of induction for parameter free Π_n+1‐formulas. Motivated by this result, we present a systematic study of extensions of bounded quantifier complexity of fragments of first‐order Peano Arithmetic. Here, we improve that result and show that this property describes a general phenomenon valid for parameter free schemes. As a consequence, we obtain results on the quantifier complexity, (non)finite axiomatizability and relative strength of schemes for Δ_n+1‐formulas. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)     

试谈英文国际经济贸易合同的句法特点

结合英汉语言差弄的比较，从语法、修辞、结构、逻辑等不同角度，分析了英文经贸合同中的句法特点，并介绍了一些翻译经贸合同应采取的方法和技巧。     

论汉语复句的翻译

本文比较了英汉复句的特点，指出汉语复句是按时间顺序展开的，英语是逻辑语言。英译时，应以句子为单位，分析各子句概念意义的逻辑关系而翻译行文。