浮生三趣

劳作之余,更愿品味“偷得浮生半日闲”的境界,珍爱那份难得的宁静与安详。桑田沧海,岂能尽如人意,但求天愧我心。奔波之余,学会调节和放松,保持一个好兴致、平常心,无论做人、做事都是不可少的。

Spheroidal Oscillations in the Earth Excited by the Wenchuan Earthquake

Based on the digital observational data from pendulum tilt-meters and water tube tilt-meters, the spheroidal free oscillations of the Earth, excited by the M_S8.0 Wenchuan earthquake of May 12, 2008, were obtained using the method of power spectral density estimation without any calculation to erase solid tides. The result matches well with the PREM results. Compared to the theoretical free oscillation from the PREM model, all relative errors are concentrated on 0.1% except for _0S_7, whose relative error is greater than 0.3%. This research provides a new method to determine the spheroidal modes of Earth's free oscillations from observations of the pendulum tilt-meter and water tube tilt-meter, which may be useful in the future study of the Earth's free oscillations.

Dynamics of Globalization： Linguistic and Cultural Perspectives in Nigeria

The word globalization and what it stands for is no longer new in the world of today. However, there is still no universal definition of globalization. This has led to erroneously or otherwise, the interchangeable use of the word with internationalization and liberalization. Suffice it therefore to say that globalization is the transcendence of the economic, political, environmental, social and cultural constraints across territories. The task of this paper is essentially to ascertain the level of involvement of Africa via Nigeria in this new international economic power and order. This is necessary because Nigeria particularly, has become a good consumer of information technology which is an essential ingredient of globalization. The issue then is how prepared are the Nigerian languages in the challenges of information technology as demanded by globalization. What are the implications of the order to Nigerian cultural revival and development？

Petrogenesis of Early Cretaceous hornblende gabbro in Khanka Massif: evidence from geochronology and geochemistry

The authors report zircon U-Pb geochronological, whole-rock geochemical and zircon Lu-Hf isotope data for the hornblende gabbro within the Khanka Massif, with the aim of constraining its formation time and petrogenesis. The zircon U-Pb dating shows that 206 pb^238 Pb ages of zircons from the hornblende gabbro range from 120 to 129 Ma, yielding a weighted mean age of 123±2 Ma, i.e., the Early Cretaceous. The hornblende gabbro has SiO2 of 44.77%-46.58% and belongs to the tholeiitie series on FeOt/MgO-SiO2 diagram. It dis-plays a right-inclined REE pattern with （La/Yb）N ratios of 3.44 to 4.42. The trace element spidergram shows that they are enriched in large ion lithophile elements （LILE） such as Rb, Th, U, K and Pb, and depleted in high field strength elements （HFSE） such as Nb, Ta, Ti and P, indicating an affinity to arc igneous rocks. The ettf（t） values of zircons vary from -2.6 to ＋ 3.9 and Hf model ages （TDM1 ） range from 622 to 883 Ma. These geochemical characteristics indicate that primary magma of the hornblende gabbro could be derived from partial melting of young mantle material acereted during the Neoproterozoie. Combined with the Early Creta-ceous igneous rock assemblages in NE Asia. It is concluded that the hornblende gabbro formed in an active con-tinental margin related to the westward subduction of the Paleo-Paeific Plate beneath the Khanka Massif.

Management of transport of dangerous goods based on networking technology

Networking is the core area of national strategic emerging industry development of information industry; it will play an important role in national economic development. Currently, it is hot issue of global research at home and abroad regardless of the mention of its development of a national strategic level, it is called the third wave of the world information industry following the computer, and internet.

Application of geophysical-geochemical method in verification of stream sediment anomaly in Baoxinggou area of Heilongjiang

Baoxinggou area is located in northern Daxing'anling. In this area,comprehensive use of geophysical and geochemical exploration methods plays an important role in the prospecting,and has yielded some application results so far. Based on the 1 /100 000 stream sediment anomaly survey,the methods of 1 /20 000 soil geochemical measurement,trenching engineering on the earth's surface and 1 /10 000 IP intermediate gradient survey were all used to verify and decompose drainage anomalies,as well as to find and locate ore bodies. In this way,an effective,economical and quick prospecting method was concluded,which focuses on the middle and lower mountain forest swamp landscape in the northern part of Daxing'anling,and provides reference for the prospecting in the area.

Geochemistry and tectonic significance of Early Cretaceous granites in Highland 1248 of Daxing'anling

The Early Cretaceous granitic complex in Highland 1248 of Daxing'anling successively consists of intruded granodiorite,monzonite granite and syenite granite. Through test analysis on the major,trace and rare earth elements of the intrusive complex,this study focuses on the source characteristics and tectonic environment of the original magma of intrusive complex. The results show that the intrusive rocks in Highland 1248 are meta-aluminous-peraluminous rocks in calc-alkaline series with homologous characteristics in δEu negative anomalies; the complex is enriched in LILE( Rb,Cs and K) and depleted in HFSE( lanthanide,Sc,Y,U,Nb and Ta),displaying the geochemical characteristics of I-type granites in active continental-margin subduction zones. The complex also has the characteristics of granites after the collision of plate with rich aluminum and high potassium,but significantly depleted Nb,Ta,Ti,P and other elements,i. e. in the orogenic evolutionary stage. The zircon U-Pb SHRIMP isotopic apparent age of the complex in Highland 1248 is 140. 0--141. 0Ma,and the formation time is in Early Cretaceous.

Typical Water-land Utilization GIAHS in Low-lying Areas:The Xinghua Duotian Agrosystem Example in China

Xinghua Duotian Agrosystem is a raised ifeld agriculture system with typical water-land utilization. It was identiifed as a Globally Important Agricultural Heritage Systems （GIAHS） site by FAO in April 2014. Based on a literature review and ifeld investigations, we analyzed the history and development, structure and characteristics, functions and values of the Xinghua Duotian Agrosystem in this research. The system has a long history, rich biodiversity, important ecosystem services, traditional adapted agricultural technologies and a folk culture. Altogether, these features form an attractive landscape created by its special water-land utilization. It also has great importance for the livelihood maintenance of the local people. However, the inheritance and conservation effort of Xinghua Duotian Agrosystem is facing great threats from modern agriculture, urbanization and labor loss. This paper wil provide insight into the Xinghua Duotian Agrosystem, and provide scientiifc support for the conservation and development of this special system. It will also provide a good example for similar areas in China and worldwide.

Resurgence relation and global asymptotic analysis of orthogonal polynomials via the Riemann-Hilbert approach

A global asymptotic analysis of orthogonal polynomials via the Riemann-Hilbert approach is presented,with respect to the polynomial degree.The domains of uniformity are described in certain phase variables.A resurgence relation within the sequence of Riemann-Hilbert problems is observed in the procedure of derivation.Global asymptotic approximations are obtained in terms of the Airy function.The system of Hermite polynomials is used as an illustration.

Second harmonic generation of centrosymmetric nanospheres excited by tightly-focused doughnut beams

Using the vector diffraction theory and the phenomenological model, this paper investigates the second harmonic tion （SHG） of a single centrosymmetric nanosphere excited by focused doughnut beams （DBs） with different topological charges. The results show that strong backward SHG （BSHG） appears when the particle is excited by focused DBs with topological charges of ±1. The backward second harmonic radiation can be caused by the depolarized effect of high numerical aperture （NA） objectives due to the strong longitudinal components.