Orlicz－Musielak序列空间中在Luxemburg范数下的严格凸性

本文给出了Ｏｒｌｉｃｚ—Ｍｕｓｉｅｌａｋ序列空间中关于Ｌｕｘｅｍｂｕｒｇ范数的严格凸性的一个充分条件与一个必要条件．     

Supply chain contagion of perk consumption: Who is more likely to be corrupted?

The contagion of interfirm behaviours along the supply chain has become a significant issue for both supply chain management and the internal governance of firms within the supply chain. By means of panel data of 1893 mated supply chain pairs collected from Chinese listed firms, we examine the supply chain contagion effect of corruption-related perk consumption by investigating whether firms’ perk consumption is influenced by their supply chain peers. We find a unilateral contagion effect of corrupt perk consumption along the supply chain, i.e., only from suppliers to customers. We suggest that suppliers exert this unilateral contagion effect by influencing customers’ managerial culture and the close business relationship between them. In addition, the unilateral contagion effect would be weakened when customers have a high level of employee salary.     

加捻对芳香族聚酰胺纤维拉伸性能的影响

本文对加捻芳香族聚酰胺纤维的拉伸性能进行了①定长加捻后拉伸;②定张力加捻后拉伸和③定长加捻后再退捻随后拉伸等三方面的测试.结果表明,芳香族聚酰胺纤维的强度及断裂伸长随捻度的增加而下降.对纤维断裂端进行了扫描电镜观察.加捻芳香族聚酰胺纤维断裂形态照片显示了纤维沿轴向分裂为微纤的现象,证明了微纤间横向联系的薄弱.加捻作用更削弱了这种联系,从而使纤维强度下降.本文对芳纶纤维在加工过程中应严格控制加捻提供了依据.     

两类循环矩阵求逆的一种算法

给出了两类循环矩阵求逆的一种算法．当循环矩阵非奇异时，该算法求循环矩阵的逆；当循环矩阵奇异时，该算法求循环矩阵的｛１，２｝逆     

贵州石炭纪地层沉积地球化学特征

本文对贵州石炭纪岩相古地理各单元的沉积特征进行描述。并利用多条剖面的近300多件样品的微量元素、同位素等分析资料,总结出各种岩石类型的微量元素分布情况。同时,对近百条割面的各种沉积环境成相中的岩石类型进行百分统计,从各种环境中的岩石组合与各种岩石类型中的微量元素分布情况,推算出各沉积环境成相带内微量元素的分布情况。另外,还建立了被动大陆边缘拉张盆地沉积的微量元素分布规律:从滨岸到开阔台地,微量元素Sr逐渐增加,而Ba、K、B、Be、Na、Ni、Ti、Cr、Mn等元素含量逐渐减少,而台盆沉积含有很高的Ba、K、Na、Ni、Ti、Cr、Mn,但Sr含量却很低。台地边缘斜坡相带,则是台盆与开阔台地之间的过渡地带,其既富含Sr。又富合Ba、Mn、Ti、Cr、Ni、K、Na等。     

Carbon isotopic record from Upper Devonian carbonates at Dongcun in Guilin,southern China,supporting the worldwide pattern of carbon isotope excursions during Frasnian-Famennian transition

Carbon isotopic composition of carbonates and or-ganic matter in sediments has been a powerful tool for deducing perturbations in the global carbon cycle which, in many cases, is observed together with the occurrence of biological mass extinctions[1]. The Frasnian-Famennian (F-F) mass extinction[2,3], so-called F-F event or bio-crisis, has been recognized as one of the five major bioevents of Phanerozoic time[4—7], and more than 60% of all Frasnian genera were eliminated[3,11]. This event …     

On the Distribution of Prime Pairs

A new approach to the research into the distribution of prime pairs is developed, attached with corollaries about the distribution of prime triplets and generally about that of prime h-tuplets. It differs from the usual methods（involving the sieve method） for this kind of research, and bases on Chebyshev inequality and on the computation of average concentration of all the related subsets, and leads to the proofs of following lemma and theorem, attached with four corollaries：[Lemma 1] Among all the prime-pair-subsets there exists at least one such subset （namely one of the sets of generalized prime twins） which is an infinite set.[Theorem 1] All the prime-pair-subsets （namely all sets of generalized prime twins） or infinitely many prime-pair-subsets are infinite sets.[Corollary 1] Among all the prime-triplet-subsets there exists at least one such subset which is an infinite set.[ Corollary 2] All the prime-triplet-subsets or infinitely many prime-triplet-subsets are infinite sets. [Corollary 3] Among all the prime-h-tuplet-subsets there exists at least one such subset which is an infinite set, where h is an arbitrary finite integer ≥ 2.[Corollary 4] All the prime-h-tuplet-subsets or infinitely many, prime-h-tuplet-subsets are infinite sets, where h is an arbitrary finite integer ≥ 2.     

直动从动件盘形凸轮机构中凸轮的基本尺寸确定方法

本文以从动件运动规律具有外凸、可微形状的ds/dφ曲线为例,分析了在不同条件下确定凸轮基本尺寸的解析方法,给出了简单可行的计算公式和电算框图,这种方法可推广到具有其它运动规律的凸轮机构中去,为该种凸轮机构的设计提供了理论依据。     

Lie球双曲空间上的奇异积分

Ｌｉｅ球双曲空间上的一种奇异积分的新的定义，比龚教授和史济怀教授所定义的奇异积分（见［２］）要方便得多，在此定义下，其计算量大大地少于［２］的计算，并在同等条件下，也能得到相应的结果，另外，在所定义的奇异积分之后，不难定义Ｌｉｅ球双曲空间上的Ｈａｄａｍａｒｄ积分，这是［２］所没做的。     

基于时效性分析的动态贝叶斯网络故障诊断方法

针对柴油机多源信息故障诊断中,由传感器采集的不确定性信息造成的融合误差问题,从多源传感器信息时效性角度,提出一种基于信息时效性机会窗口的动态贝叶斯网络故障诊断方法.首先,根据多源传感器不确定性信息的变化规律建立信息时效性机会窗口,计算得到目标状态偏离信息;其次,利用目标状态偏离信息动态调节贝叶斯网络观测节点信息效用,降低不确定性信息对融合误差的影响.R6105AZLD柴油机台架试验表明,引入该方法后故障诊断灵敏度增强,故障后验概率的对比差距提高到35%.