Gn的一种完全因子

设ｎ＝２＾λ－１＋ｔ，λ〉２，０≤ｔ〈２＾λ－１。反馈函数ｘｎ＝ｆ（ｘ０，ｘ１，…，ｘｎ－１）＝１＋ｘ０＋Σｉ∈Ｉｔ（ｘｉ＋ｘｎ－ｉ）产生ｎ阶ｄｅ Ｂｒｕｉｊｎ－Ｇｏｏｄ图Ｇｎ的一个完全因子ＰＦλ（２＾λ－１＋ｔ）其中Ｉｔ＝｛ｔ；（ｔｉ）是奇整数，１≤ｉ≤ｔ｝。     

最大似然估计的相合性、渐近正态性及重对数律

设有样本｛Ｙｉ，Ｚｉ｝，ｉ＝１，２，…，ｎ，其中：Ｙｉ＝ｍｉｎ（Ｘｉ，Ｔｉ），Ｚｉ＝Ｉ（ＸＩ≤Ｔｉ）．假定Ｘ１，Ｘ２，…，Ｘｎ相互独立，有共同的分布函数ＦＸ（ｘ）＝１－ｅ－αＱ（βｘ），Ｔ１，Ｔ２，…，Ｔｎ相互独立，分布函数分别为Ｇ１（ｔ），Ｇ２（ｔ），…，Ｇｎ（ｔ）本文给出参数（α，β）的最大似然估计具有相合性、渐近正态性及重对数律的一个充分条件，然后验证Ｌｏｍａｘ分布满足该条件     

B值随机元阵列加权和的收敛性与大数定律

令｛Ｘｎｉ，１≤ｉ≤ｋｎ↑∞，ｎ≥１｝为Ｂ值随机元阵列，｛ａｎｉ，１≤ｉ≤ｋｎ，ｎ≥１｝为实数阵列。讨论加权和Ｓｎ＝Σ↑ｋｎ↓ｉ＝１ａｎｉＸｎｉ，ｎ≥１的收敛性。在条件ｓｕｐ↓ｎ，ｉＰ（‖Ｘｎｉ‖〉ｘ）＝０（ｘ＾－ｒ）下给出了一些收敛性结果（１≤ｒ〈ｐ≤２），同时用这种收敛性刻划了Ｂａｎａｃｈ空间的ｐ型性质。     

时间序列引出的数学问题(Ⅱ)

Ｘ′＝（ｘ１，ｘ２…，ｘｎ），问在∑ｎｉ＝１ｘ２ｉ≤１条件下，ａ３＝∑ｎ－２ｉ＝１ｘｉｘｉ＋２，ａ５＝∑ｎ－１ｉ＝１ｘｉｘｉ＋１，当Ｘ取遍∑ｎｉ＝１ｘ２ｉ≤１上的点，（ａ３，ａ５）在平面上构成怎样的图形？该文对ｎ＝４给出解析解     

一个带多约束的整数瓶颈问题的Primal算法和Threshold算法

在这篇文章中，我们讨论了数学模型１：ｍａｘｆ（ｘ），ｘ∈｛ｘ｜ｘ＝（ｘ１，ｘ，…，ｘｎ），∑＾ｎｊ＝１ａｉｊｘｊ≤ｂｉ，ｉ＝１，２，…，ｍ，ｘｊ≥１且为整数｝，其中ｆ（ｘ）＝ｍｉｎ１≤ｊ≤ｎ｛ｃｊｘｊ｝且∑＾ｎｊ＝１ａｉｊ     

关于高阶泛函数值问题的一个比较定理

考虑泛函边值问题：ｘ＾（ｎ）－ｎ／∑／ｉ＝１Ａｉ（ｔ，，ｘ，ｘ′，…，ｘ＾（ｎ－１））ｘ＾（ｉ－１）＝ｆ（ｔ，ｘ，ｘ′，…，ｘ＾（ｎ－１）（０≤ｔ≤１），Ｂ（ｘ，ｘ′，…，ｘ＾（ｎ－１）＝ξ。在适当条件下，利用Ｂｏｒｓｕｋ定理主明了上述问题的可解性蕴含于边值问题：ｘ＾（ｎ）－ｎ／∑／Ｐｉ（ｔ）ｘ＾（ｉ－１）＝０，Ｂ（ｘ，ｘ′，…，ｘ＾（ｎ－１）＝ξ”解的唯一性。     

关于高阶泛函边值问题的一个比较定理

考虑泛函边值问题：ｘ（ｎ）－ｎｉ＝１Ａｉ（ｔ，ｘ，ｘ，…，ｘ（ｎ－１）ｘ（ｉ－１）＝ｆ（ｔ，ｘ，ｘ，…，ｘ（ｎ－１））（０≤ｔ≤１），Ｂ（ｘ，ｘ，…，ｘ（ｎ－１））＝ξ．在适当条件下，利用Ｂｏｒｓｕｋ定理证明了上述问题的可解性蕴含于边值问题“ｘ（ｎ）－ｎｉ＝１Ｐｉ（ｔ）ｘ（ｉ－１）＝０，Ｂ（ｘ，ｘ，…，ｘ（ｎ－１））＝ξ”解的唯一性．     

时间序列引出的数学问题（II）

Ｘ＇＝（ｘ１，ｘ２，…，ｘｎ），问在Σｉ＝１↑ｎｘｉ＾２≤１条件下，ａ３＝Σｉ＝１↑ｎ－２ｘｉｘｉ＋２，ａ５＝Σｉ＝１↑ｎ＝１ｘｉｘｉ＋１，当Ｘ取遍Σｉ＝１↑ｎｘｉ＾２≤上的点，（ａ３，ａ５）在平面上构成怎样的图形？该文对ｎ＝４给出解析解。     

无平均数集与无模n平均数集

我们称Ｚｎ＝｛０,１,…,ｎ－１｝的一个子集Ｘ是无模ｎ平均数集,如果对于所有｛ｘ,ｙ,ｚ｝Ｘ,ｘ＋ｙ≠２ｚ（ｍｏｄｎ）。我们记ｒ（ｎ）＝ｍａｘ｛｜Ｘ｜｜Ｘ是无模ｎ平均数集｝,Ｒ′（ｎ）＝ｍａｘ｛｜Ｘ｜｜Ｘ是无模ｎ平均数集,且对于所有｛ｘ,ｙ｝Ｘ,２Ｘ≠２ｙ（ｍｏｄｎ）｝。在本文中,我们证明了：当ｎ为奇数时,Ｒ′（ｎ）＝Ｒ（ｎ）,Ｒ（２ｎ）＝２Ｒ（ｎ）;当ｌ≥２ｎ－１时,Ｒ′（ｌ）≥ｒ（ｎ）;当ｌ≥２ｎ－２时,Ｒ（ｌ）≥ｒ（ｎ）;Ｒ′（ｎ）≤Ｒ（ｎ）≤ｒ（ｎ）     

Levy不等式的推广

设Ｂ为一可分的赋范空间（Ｘｉ）ｉ＝１是Ｂ值独立，对称的随机元Ｓｎ＝ｘ１＋．．．Ｘｎ（ｎ〉１），若Ｑ（ｎ）是（１，２，．．．ｎ）的一些子集构成的集合并使，对Ｑ（ｎ）中任意两个元素Ｍ，Ｎ都有Ｍ∩Ｎ等于Ｍ，Ｎ或Х则我们有Ｐ（ω：ｓｕｐ‖∑Ｘｉ‖〉ｔ）≤２Ｐ（‖Ｓｎ‖〉ｔ）。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.