防盗盖表面环状线流纹研究

分析了防盗盖表面环状线流纹的产生原因及避免产生环状线流纹的工艺措施。指出了环状线流纹是因组织不均匀导致变形不均匀所致。分析了产生组织不均匀的原因，指出了在生产过程中使偏析最小并防止形成粗晶粒是避免防盗盖表面产生环状线流纹的关键。

Differential utilization of cyclic, orthorhombic α- and chain-like polymeric μ-sulfur by Acidithiobacillus ferrooxidans

The differential utilization of cyclic, orthorhombic α-sulfur （α-S） and chain-like polymeric g-sulfur （μ-S） by Acidithiobacillus ferrooxidans was investigated. The growth and sulfur oxidation results indicated that utilization of μ-S by A. ferrooxidans was clearly different from α-S. Even if the planktonic cells were produced, the fall of pH and the rise of sulfate concentration were the same after 300 h on each substrate, the speeds of the planktonic cells increase, pH decrease and sulfate concentration increase in the earlier cultivation stage were faster on polymeric sulfur compared with the orthorhombic form. The adsorption capacity of the cells was higher on μ-S than on α-S, The results of SEM, DRIFTS and XRD analyses indicated that the surfaces of α-S and μ -S were modified differently by cells. Differential expression of 11 selected sulfur adsorption-activation and metabolism relevant genes was detected by RT-qPCR. The results showed that the expression of the hydrophobic substrate transport proteins and the sulfur metabolism related proteins was up-regulated, and the adsorption and activation related proteins were down-regulated when the cells were grown on μS, suggesting that μ-S could be more easily bio-adapted and activated than α-S.

铝防盗盖表面流纹成因的研究

研究了铝防盗盖成型过程中铝板的应力，应变状态和金属流动特征，从理论上和铝板的组织状态方面分析了流纹的成因；同时从铝板表面粗糙度和表面缺陷方面分析了流纹的成因，提出了铝防盗盖表面流纹的控制方法．

内窥镜下手术缝合手法

近年我院开展内视镜下手术,我们参阅有关资料改进缝合方法介绍如下; 缝合用针带环状线,第一针用套绕法,以后可以连续缝合、最后不需用旧法打结,用一种可吸收小夹做固定,亦可用金属夹代替固定最后针线,剪线即完成缝合作业。上述简易方法。

二十一世纪日本大阪的规划蓝图

一、构思大阪未来蓝图的指导思想 面向21世纪,大阪期望在世界上发挥积极的作用,谋求对人们提供舒适、易于生活的优越条件。基于这点,要取社会潮流之先,根据成为“交流和创造时代之先导的大阪”及“新的富足时代之先导的大阪”这二个基本理论,为未来的大阪勾划出以下四种蓝图。

大发GRAN MOVE

GRAN MOVE 不单纯是将大车做小,而是创新的高车身旅行车式样。GRAN MOVE 以其小型的车身,酿出了强力、安心的存在感。短车头、长车室、宽车身,具有稳定感和高位环状线型的 GRAN MOVE的特征。从前面看 GRAN MOVE 的印象是力度感。首先映入眼帘的是带车幅灯的巨大异形的前照灯,还有从侧面向前延伸的特征曲线,以及风趣、状似蜂巢的格栅。

Climate Change in China Congruent with the Linear Trends of the Annular Modes

The authors exploit the remarkable connection between the Chinese climate trends and the annular modes by partitioning the trends into components linearly congruent with and linearly independent of the annular modes. Results show that the winter hemisphere annular mode has closer connection to Chinese climate than the summer one, e.g., the wetting JJA (June-July-August) rainfall trend along the Yangtze River valley and the associated temperature trends are significantly linearly congruent with the trend of the southern annular mode, while the JFM (January-February-March) climate trends are closely linked to the northern annular mode. The seasonal differences of a meridional wave-train-like chain across the equatorial Pacific associated with the annular modes are responsible for the seasonal-dependent connections to Chinese climate.

组合数学中的圆排列

集S上的一个k元环状字(或圆排列),即⊙x1x2…xk,就是把属于S的x1,x2,…,xn按顺时针方向依次排列成圆周状所得,这里的x1,x2,…,xn可能有重复。本文主要讨论n元集上字母不重复的k元环状字排列的情况。

建筑:契入与永恒——纪念馆设计实践

在胡耀邦纪念馆的设计中,设计者首先从环境出发,通过整合故居与纪念馆的矛盾、人工建造与自然环境的矛盾、纪念馆参观顺序的内在矛盾,试图建立一个弱化空间导向作用的三维时空环,形成闭合的观展流线、错落跌宕的观展序列,并与建筑的外环境、光环境、形态风格等因素一起营造庄严而凝重的场所精神。

Channel＇s Concurrence and Quantum Teleportation

Concurrence can measure the entanglement property of a system. If the channel is a pure state, positive concurrence state can afford the good performance in the teleportation process. If the channel ia a mixed state, positive concurrence state cannot assure the good performance in the teleportation. The conditions of the positive concurrence and the quantum teleportation in the Heisenberg spin ring is derived.

Interpretation of remote sensing of geological structures and prediction of gold mineralization in Mohe area and its adjacent region

The authors took the ETM+ multi-spectra data as the data information and correlation coefficient for each band and carried out their information volume statistics.According to certain criteria,the authors also determined the optimum band-combined image.The image clarity is improved by various enhancements and fusions method.Based on remote sensing geological interpretation in detail,the relationship between remote sensing geological characters and gold mine were analyzed systemically.Using all kinds of remote sensing structure information,combining other research data,the authors determined mainly ore-controlling ore structure.Several prospective areas of gold ores were determined and furthermore significant finding mine target areas was confirmed.

Permissible Stress Level of Brick Masonry under Compressive Cyclic Loading

Laboratory tests revealed that the behavior of brick masonry under compressive cyclic loading is characterized by three distinct stress-strain curves. These three curves are termed as envelope curve, common point curve and stability point curve. The envelope curve is obtained by superimposing the cyclic peaks on the monotonic stress-strain curve. The common point curve is the locus of intersection points of loading and unloading curves of the cycles. If for the same cycle, the loading and unloading are repeated several times, the intersection points of loading and unloading paths will stabilize at a lower bound. The locus of these stabilized points （lower bound points） of all cycles form the stability point curve. Therefore, the stability point curve can be used as a measure for the allowable stress for masonry under cyclic loadings. The proposed cyclic allowable stress level is associated with the accumulation of residual （plastic） strain levels as a result of cyclic loading history. The permissible stress level was found to be about two thirds of the cyclic peak stress of the specimen.

The scaling behavior of the second virial coefficient of linear and ring polymer

The scaling behavior of the second virial coefficient of ring polymers at the theta temperature of the corresponding linear polymer(θ_L) is investigated by off-lattice Monte Carlo simulations. The effects of the solvents are modeled by pairwise interaction between polymer monomers in this approach. Using the umbrella sampling, we calculate the effective potential U(r) between two ring polymers as well as the second virial coefficient A_2 of ring polymers at θ_L, which results from a combination of 3-body interactions and topological constraints. The trend in the strength of the effective potential with respect to chain length shows a non-monotonic behavior, differently from that caused only by topological constraints. Our simulation suggests that there are three regimes about the scaling behavior of A_2 of ring polymers at θ_L: 3-body interactions dominating regime, the crossover regime, and the topological constraints dominating regime.