关于Smarandache函数的复合函数的均值

对任意的正整数n,定义数论函数W（n）为最小的正整数k,使得n≤k（3k＋1）,即（）W（n）=min{k：n≤k（3k＋1）,k∈N}.利用初等及解析的方法研究复合函数S（W（n））的均值分布,并获得了较强的均值分布的渐近公式.     

一个包含Smarandache函数的混合均值

对任意n∈N＋,著名的F.Smarandache LCM函数SL（n）定义为最小的正整数k使得n｜[1,2,…,k],即SL（n）=min{k：n｜[1,2,…,k]}。本文利用初等和解析的方法研究了SmarandacheLCM函数SL（n）和除数函数σ（n）的混合均值,并给出了一个较强的渐近公式。     

一个包含F．Smarandache函数的复合函数

对任意正整数n,著名的F．Smarandache LCM函数SL（n）定义为最小的正整数七,使得n｜[1,2…,k],其中,n｜[1,2…,k]表示1,2,…,k的最小公倍数。而函数Z（n）定义为最小的正整数k,使得n≤k（k＋1）/2,即Z（n）=min｜k：n≤k（k＋1）/2｜,主要目的是利用初等及解析方法研究复合函数乩（Z（n））的均值性质,得到了一个有趣的渐近公式。     

p次幂原数函数Sp（n）和它的均值性质

设p为素数,n为任意的正整数,我们定义p的原数函数为最小的正整数m,使得pn｜m!即就是SP（n）=min{m∶pn｜m!},其中p为素数.本文研究了这一类Smarandache数论函数p次幂原数函数Sp（n）的均值性质,并给出关于｜Sp（k（n＋1））-Sp（kn）｜和｜Sp（k（n＋1））-Sp（kn）｜2的渐近公式.     

一个包含伪F.Smarandache函数的对偶的方程

对任意正整数n,伪F.Smarandache函数的对偶Z（n）定义为最大的正整数m使得（m（m＋1））/2.利用初等方法研究一类包含伪F.Smarandache函数的对偶的方程的可解性,即一定存在正整数n满足方程∑d｜nZ（d）=Ф（n）并获得了给定方程的部分正整数解.     

关于Smarandache LCM函数与k次补数的一个混合均值

对任意的非负整数n,著名的Smarandache LCM函数SL(n)定义为最小的正整数k,使得n|[1,2,…,k],其中n|[1,2,…,k]表示1,2,…,k的最小公倍数。设k≥2为给定的整数,bk(n)定义为最小的正整数使得bk(n)·n为完全k次幂,则称bk(n)为n的k次补数。本文主要利用初等及解析方法,研究复合函数SL(bk(n))与n的最大素因子函数P(n)的均方差,得到了一个较强的渐近公式。     

关于F.Smarandache LCM函数与素因数和函数的一个混合均值

对任意的非负整数n,著名的F.Smarandache LCM函数SL(n)定义为最小正整数k,使得n│[1,2,…,k],其中[1,2,…,k]表示1,2,…,k的最小公倍数.利用初等及解析的方法研究函数SL(n)与素因数和函数ω軍(n)的加权均值分布,并给出一个有趣的加权均值分布的渐近公式.     

奇异k-紧整数无限族

设n，s1，s2是3个正整数，使得s1〈s2〈n，gcd（n，s1，s2）=1．双环网G（n；s1，s2）是个有向图，其结点集为V={0，1，2，…，n-1}，其弧集为A={i→i＋s1 （mod n），i→i＋s2（mod n）｜i∈V}，s1和s2称为步长．设d（n；s1，s2）为双环网G（n；s1，s2）的直径．令 d（n）=min{d（n；s1，s2）｜s1〈s2〈n}，d1（n）=min{d（n；1，s）｜1〈s〈n）． 已知d1（n）≥d（n）≥｜√3n｜-2=lb（n）．若d（n；s1，s2）=d（n）=lb（n）＋k（k≥0），则称G（n：s1，s2）是个k-紧优的双环网．虽然等式d1（n）=d（n）对于无限多个整数n成立，但也存在无限多个整数n使得d1（n）〉d（n），这样的n称为奇异整数．若d1（n）〉d（n）=lb（n）十k，k≥0，则这样的n称为奇异k-紧整数． 本文给出构造奇异k-紧整数无限族的方法，并对于k=1,2．…．20，构造出这样的无限族．     

一个关于自然数数码平方和问题的推广

设f(x)为定义在{0,1,2,…,o}取值为非负整数的函数,对于任意自然数n,设n的十进制表示为n=a1a2…at,定义F(n)=∑i=1^tf(a1）,记F^(1)(n)=F(n),F^(2)（n）=F(F^(1)（n）),…,则总存在自然数k,使得F^(k)（n）落入有限个循环圈{a11,a12,…,a1r1},…,{am1,am2,…,amrm}内,其中{ai1,ai2,…,airi}满足F(ai1）=ai2,F(ai2)=ai3…,F(air1)=ai1(i=1,2,…,m）。     

关于Jordan函数的gcd和函数的渐近估计（英文）

将整数k和j的最大公约数记为gcd(k,j).设k为正整数,f为任意算术函数,r是任意固定整数,n为任意正整数.对实数x≥2,定义与f关联的gcd和函数M_r(x;f)为■.本文利用Kiuchi在2017年得到的关于M_r(x;f)的一个恒等式及初等和解析方法给出了M_r(x;J_k)的渐近公式,其中的若当函数J_k定义为■.本文的结果加强了Kiuchi和Saadeddin在2018年得到的结果。     

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.     

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.     

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.     

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。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

A computer generator for randomly layered structures

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

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-