条件压缩算子不动点与Banach空间Volterra型积分方程的解

给出了Banach空间条件压缩算子定义,讨论了此类算子不动点的存在性和Banach空间中非线性Volterra型积分方程解的存在性和唯一性.     

分隔区域模型正周期解的存在性与唯一性

运用非线性泛函中的锥压缩不动点原理，证明了在一定条件下，一类描述分隔区域模型非线性积分方程正周期解的存在性与唯一性。     

具有n元点组的非线性压缩映象的不动点定理

在更为一般的压缩条件下,在完备度量空间中研究具有n元点组的非线性压缩映象不动点的存在性,给出了一个新的不动点定理,推广和改进了相关结果.     

完备度量空间中的耦合不动点理论

通过构造混合单调映射,利用非线性压缩条件,研究了完备度量空间中耦合不动点的存在性和唯一性,改进了最近的一些结果.     

一类奇异多点(k,n-k)共轭边值问题正解的存在性

利用非线性泛函分析中推广的锥拉伸与锥压缩不动点定理,在多点边值条件下得到了一类高阶奇异非线性(k,n-k)共轭边值问题正解的存在性结果.     

关于一类二阶两点边值问题的正解存在性

利用锥拉伸与锥压缩型的Krasnoselskii不动点定理研究了一类非线性二阶两点边值问题的正解存在性。这些结论是在比已有献更弱的条件下获得证明的。其中，允许非线性项是奇异的，并且允许非线性项既不是超线性的，又不是次线性的。     

分数阶微分方程反周期边值问题解的存在性

研究了一类在非线性项中含有未知函数分数导数的分数阶微分方程反周期边值问题解的存在性。利用Schauder不动点定理及压缩映射原理,在非线性项有界和无界的情况下,分别研究了反周期边值问题解存在的条件,最后得到了关于分数微分方程反周期的多个存在性定理。     

三阶非线性微分方程组边值问题的正解

本文讨论了三阶非线性微分方程组正解的存在性.在假设条件下,利用锥拉伸与锥压缩不动点定理获得了正解的存在性.     

一类非线性分数阶微分方程四点边值问题解的存在性和唯一性

研究了一类非线性分数阶微分方程四点边值问题解的存在性和唯一性,利用Schauder不动点定理以及压缩映像原理,得到了边值问题解的存在性以及唯一性的充分条件。     

MSCS光场广义非线性不等幂次差压缩特性研究

利用多模辐射场的广义非线性不等幂次差压缩的一般理论，研究了具有普遍意义的两态叠知多模薛定谔猫态（MSCS）光场的广义非线性不等幂次差压缩特性（即Nj次方X压缩特性）。通过计算，求得了MSCS的Nj次方X压缩的一般理论结果，为寻找压缩条件提供了理论依据。     

“健美操”命名小考

“健美操”之名在我国的确立主要受到了国外“Aerobics”的命名演变和国内“健美操”命名发展的两方面影响。在国外，“Aerobics”命名演变经历了由有氧练习创立而出现，经操舞融合而定型，借明星推广和竞赛载体而确立的演变历程；在国内，“健美操”的命名发展经历了由文史资料理性推进，代表性人物重点推介，在竞赛中最终定性的发展历程。其间，美国肯尼士·库伯尔、杰希·索伦森、简·方达和我国的戚玉芳、孙玉琨、马华、孙纪云等人对健美操术语的确立与完善起到了至关重要的作用。     

B/S架构的煤矿智能化信息管理平台的设计和实现

针对煤矿信息管理相对落后的现状,运用ASP.Net,SQL server,Ajax,Workflow技术开发了基于B/S架构的煤矿智能化信息管理系统,实现集煤矿隐患、三违、事故、质量标准化、新闻发布、领导带班、短信发送平台等功能为一体的智能化管理应用平台.目前,该系统已经在义海集团公司大煤沟矿应用,运行至今效果良好.     

《四库全书总目.锦里耆旧传》提要辨证

五代时后蜀国人勾延庆所著的《锦里耆旧传》一书,是记载五代时期前蜀国、后蜀国兴亡事迹的一部历史著作,该书著录于《四库全书》“史部·载记类”,其提要见于《四库全书总目》卷六十六.该则提要于作者名字、书的卷数、记事起讫等问题,颇多讹误,今依据笔者的研究心得予以辨正.     

Solar eclipses of Phobos and Deimos observed from the surface of Mars

The small martian satellites Phobos and Deimos orbit in synchronous rotation with inclinations of only 0.01 degrees and 0.92 degrees , respectively, relative to the planet's equatorial plane. Thus, an observer at near-equatorial latitudes on Mars could occasionally observe solar eclipses by these satellites (see ref. 1, for example). Because the apparent angular diameter of the satellites is much smaller than that of the Sun, however, such events are more appropriately referred to as transits. Transit data can be used for correcting and refining the orbital ephemerides of the moons. For example, Phobos is known to exhibit a secular acceleration that is caused by tidal dissipation within Mars. Long-term, accurate measurements are needed to refine the magnitude and origin of this dissipation within the martian interior as well as to refine the predicted orbital evolution of both satellites. Here we present observations of six transits of Phobos and Deimos across the solar disk from cameras on Mars aboard the Mars Exploration Rovers Spirit and Opportunity. These are the first direct imaging observations of satellites transiting the Sun from the surface of another planet.     

探索文学时间的生存维度——评《文学时间研究》

马大康、叶世祥和孙鹏程合著的《文学时间研究》一书结合具体的文学现象,对文学时间问题作了深入探讨,阐释了文学时间特性即“封闭性”、“现实性”、“包容性”、“双重个体性”以及既“异在”又“属己”性,同时又从怀旧、悲剧、庸常生活和后现代等方面探索了文学时间的生存维度,拓展了丈学时间研究的空间,对文学时间研究既具有现实意义又具有历史意义。     

辛亥革命前孙中山为何没能提出反帝的革命纲领

孙中山没能提出反对帝国主义的革命纲领的原因在于：一是孙中山本人对反对帝国主义斗争失败历史的认识；二是基于当时革命实践中在海外建立革命根据地的现实需要；三是基于他为寻求西方援助推翻清朝封建统治、建立国际统一战线的需要。它启示我们应怎样根据变化了的客观实际来制定政策与纲领。     

Eolian sand deposition and its environmental significance in the northeastern margin of the Qinghai-Xizang Plateau

The dry climate which appeared about 8#x2013;7 Ma ago in South Asia has been interpreted as results of the intensification of Asian monsoon caused by the uplift of the Qinghai-Xizang Plateau at its maximum altitude around that time. Whether it is or not, it is a critical problem. A total of 55 samples were taken from the Tertiary red earth and Quaternary lacustrine deposits and loess in the Linxia Basin which is located in the northeastern margin of the Qinghai-Xizang Plateau, for the analysis of quartz types and contents using electron probe microanalyzer. The results indicate that the eolian sands have existed since 15Ma and reached its maximum content at 8 and 6#x2013;5 Ma, respectively. This means that the climate was very dry during 8-5 Ma period in western China, which was regarded as the result of global climatic change at that time. Mean size of quartz sand grains was about 0.4 mm during 15#x2013;3.6/2.6 Ma period and dropped to 0.1–0.07 mm dramatically after 3.6–2.6 Ma. This demonstrates that the local eolian deposition was decreased significantly and even disappeared since Late Pliocene and was replaced by dust deposits from distal source, suggesting the uplift of Qinghai-Xizang Plateau and the change of air circulation after 3.6–2.6 Ma.     

Post-collisional lithosphere delamination of the Dabie-Sulu orogen

The consistence between the first rapid cooling time (226-219 Ma) of the untrahigh pressure metamorphic (UHPM) rocks in the Dabie Mountains and the formation time (205-220 Ma) of the syncollisional granites in the Qinling and Sulu areas suggests that the first rapid cooling and uplift of the UHPM rocks may be related to breakoff of subducted plate. Therefore the second rapid cooling and uplift (180-170 Ma) of the UHPM racks needs a post-collisional lithosphere delamination which resulted in the granitic magmatism with an age of about 170 Ma. In addition, the rapid rising of the Dabie dome in the early Cretaceous (130-110 Ma) and the corresponding large-scale magmatism in the Dabie Mountains need another lithosphere delamination. The geochronology of the post-collis- ional mafic-ultramafic intrusions and geological relationship between the mafic-ultramafic intrusions and granites suggest that partial melting was initiated in the mantle, and then progressively developed in the crust, suggesting a mantle upwelling underneath the Dabie Mountains. The unusual fractional trend of the gabbros characterized by lower SiO2 content (46.24%) corresponding to lower MgO content (4.53%) and their typical geochemistry features of the lower crust suggest underplating of the mantle derived magma and interaction between the magma and lower crust before their intrusion. Lithosphere delamination could be the dynamic cause of the mantle upwelling and underplating. The seismic tomography results of the Dabie Mountains and adjacent areas clearly show lithosphere thinning below the north and south sides of the Dabie Mountains. Because there is no Cenozoic magma event in the Dabie Mountains, the lithosphere thinning may result from delamination of thickened lithosphere mantle after collision. In addition, both the lower velocity zone in the 40 km depth and the basin + dome + basin coupling relationship in the Dabie Mountains also suggest the lithosphere delamination and underplating on the two sides of the orogen.     

Structural and chronological constraints on a Late Paleozoic shortening event in the Yanshan Tectonic Belt

Early deformation history of the Yanshan Tectonic Belt is an unsolved, important issue. We report early structures and their dating results in basement rocks south of the Kalaqin metamorphic core complex. The basement deformation zone is characterized by WNW-ESE steep gneissosity, WNW-ESE shallow mineral elongation lineation and many intrafolial or isoclinal folds. Many kinematic indicators show that it is a WNW-ESE steep, ductile sinistral deformation zone. LA-ICPMS zircon dating gives a crystallization age of 271 Ma for tatolly transposed, deformed monzonite granite dyke and crystallization ages of 251–250 Ma and 210 Ma for undeformed dyke, stock and pluton. The dating results demonstrate that the deformation related to regional shortening took place between 271 and 251 Ma, i.e. Middle-Late Permian. Combined with previous dating results for post-orogenic magmatism in the Yanshan Tectonic Belt, it is inferred that the shortening-related deformation happened in Middle Permian (271–260 Ma). Recent studies suggest that collision along the Solonker Suture took place in Middle Permian, and is then followed by post-collision extenion in Late Permian. We propose that the intense shortening deformation of the Middle Permian in the Yanshan Tectonic Belt belongs to foreland deformation along the norterhn margin of the North China Craton which is caused by continent-continent collision in the Xing-Meng Orogen. The belt was then oriprinted by shortening deformation of the Yanshanian Movement.     

我国女子重剑选手孙玉洁在伦敦奥运会的技术特点分析

通过对我国优秀女子重剑运动员孙玉洁比赛技术数据的统计，从进攻、抢攻、反攻等技术的成功率与使用率的比例进行分析研究。通过对孙玉洁在伦敦奥运会比赛中的所运用的技术的分析，从中了解击剑技术的变化是多样的，以及一种技术与另一种技术之间的所存在的关系，找出了孙玉洁在比赛中能够战胜对手的优点及技术特点，为女子重剑运动员发挥更好的成绩打下坚实的基础，从而使今后我国重剑运动员的技术能够得到全面的发展。