Strengths,Weaknesses,Opportunities,and Threats Analysis and Countermeasures on the Cultivation of Preschool Teachers in Sichuan Province

Training of preschool teachers in Sichuan Province brings advantages in increasing government support for the preschool education industry.The society attaches an important role to the preschool education industry as well as the rapid development of preschool education in Sichuan Province.However,problem exists in large flows of preschool teachers and imbalanced gender ratios.By viewing from the new situation,the comprehensive liberalization of the second-child policy and the development of educational informatization as well as the implementation of the one belt and one road strategy have created great opportunities in training of preschool teachers.At the same time,the increase in external impact of high-quality graduates in the east also poses a great threat to the development of preschool teachers in Sichuan Province.Through the strategic combination of strengths,weaknesses,opportunities,and threats analysis,the paper explores effective countermeasure ways to improve the quality of training of the preschool teachers in Sichuan Province and the construction of an excellent team of preschool teachers in Sichuan Province.

Business Incubator

WHEN China＇s biggest online commerce company Alibaba rang the bell at the New York Stock Exchange on September 19 and its CEO Ma Yun became the wealthiest man in China. Yang Yong, a graduate from Peking University, was also in the United States, sharing his experience of Chinese-style group funding.

Preparation of dense Ta-LLZO/MgO composite Li-ion solid electrolyte:Sintering, microstructure, performance and the role of MgO

Cubic phase Li7La3Zr2O12(LLZO),a member of the Li–Garnet family,is a promising solid electrolyte and has been widely studied in recent years.However,LLZO samples prepared via conventional ambient air sintering reported in the published literature often contain large grains with lower than desired(<94%)relative density.In this study,a non-contact method of co-firing with mother powder method is proposed to prepare high-quality Ta-doped LLZO–MgO composite ceramics.By sintering at 1150℃for 5 h,the ceramics can reach relative density of 98.2%,conductivity of 5.17×10^-4 S cm^-1 at 25℃and fracture strength of 150 MPa.The sintered samples have uniform fine-grained microstructure and high critical current densities of 0.75–0.95 mA cm-2 at room temperature in Li–Li symmetry cell with Au modification.In addition,systematic sintering experiments and characterizations are conducted to explore the function of MgO in inhibiting the Ta-LLZO grain growth and its existing form inside the composite ceramics.

用于亚65nm刻蚀的含硅材料

随着景深和光刻胶薄膜厚度的不断减小，在未来光刻方案中所用的含硅材料应当提供抗刻蚀的选项。

Progress in Marine Meteorology Studies in China during 1999-2002

The progresses of marine meteorology studies achieved in China during the four year period from 1999 to 2002 are summarized in six directions: air-sea flux, marine meteorology in high latitudes, marine disasters, connection between ocean and weather/climate in China, remote sensing applications and new methodologies in marine meteorology. Compared to the previous ones, these studies adopted much more first-hand datasets, and more scientific issues were involved. As an exciting remark, there were so many contributions done by the young scientists. A brief statement about the research strategy of marine meteorology in China for the coming years is also given.

DYNAMIC RESPONSES OF VISCOELASTIC AXIALLY MOVING BELT

Based on the Kelvin viscoelastic differential constitutive law and the motion equation of the axially moving belt, the nonlinear dynamic model of the viscoelastic axial moving belt was established. And then it was reduced to be a linear differential system which the analytical solutions with a constant transport velocity and with a harmonically varying transport velocity were obtained by applying Lie group transformations. According to the nonlinear dynamic model, the effects of material parameters and the steady-state velocity and the perturbed axial velocity of the belt on the dynamic responses of the belts were investigated by the research of digital simulation . The result shows:1) The nonlinear vibration frequency of the belt will become small when the relocity of the belt increases . 2) Increasing the value of viscosity or decreasing the value of elasticity leads to a deceasing in vibration frequencies. 3) The most effects of the transverse amplitudes come from the frequency of the perturbed velocity when the belt moves with harmonic velocity .

The Characteristics of Ground Flashes in Beijing and Lanzhou Regions

Over twenty thousand lightning location data obtained by using Lightning Location System(LLS) from Lanzhou and Beijing regions have been analysed to ascertain the characteristics of ground flashes in both regions. The strength of positive flashes is 5 times higher in Lanzhou than in Beijing. The strength of positive flashes is 3 times and 2.2 times as large as negative flashes in Beijing and in Lanzhou respectively. It has been found that the strength of positive and negative flashes is submitted to the normal distribution, and is independent of the characteristics of thunderstorm. So the lightning strength obtained by DF may be used to forecast the coming of thunderstorm. Although the stroke number in both regions decreases as exponent regulation, the maximum number of return stroke for one lightning in Beijing is more than that in Lanzhou. The peak flash rate occurs in late afternoon for both regions, but the maximum and minimum flash rate appeared an hour earlier in Beijing than in Lanzhou.The relationship between DF display and lightning radiation electric field, discharge current is obtained.

Development of City Transport System and Two-wheel Vehicles

Based on the study on the city transport systems of some typical cities worldwide,this paper put forward that each city transport system has its own development mode,which is influenced by the city development plan,economic development level,traveling vehicle composition etc..When some problems occur,such as the congestions caused by contradiction between the road capacity and vehicle composition,the city transport system may come into temporary maturity period.If the improvement for road system is limited meanwhile,optimized structure of vehicle composition should be an effective solution in this case.With the development of economy-internationalization,the development speed of city transport modernization is rapid.When traveling easiness is conflicting with efficiency,the advantages of public transport system become more obvious.Correspondingly,the superiority of two-wheel vehicles will reappear.Though the important function of two-wheel vehicles for alleviating city traffic problems is obvious,however,their development strategy must be reasonably proposed,and operation regulations must be performed accordingly.

悠长假期

面积:约65平方米(实用面积)间隔:顶层连天台 12月24日平安夜明天是圣诞假期的开始,小娴问我有没有什么节目,我说除了一连串大食会派对外,还加送采访稿一篇。她来个不可思异的表情,大抵在想我这个懒人怎么肯在假期里工作吧。与设计师是第一次会晤,会是个怎样的人呢?我一向对设计师的故事比较有兴趣,他们都像写作人一样,有很大的神秘性,这种神秘感来自他的"作品"

Unequal Development and Territorial Competitiveness of Network Economy

The territorial consideration is enclosed in the development of network economy and e-Business, and there is no departure of the cultivation of e-Business from the establishment of territorial competitiveness. The traditional theory of the territorial competitiveness has come across a serious impact from the Internet. So the development of Intemet infrastructures and institutional environment would be something new to the theory of territorial competitiveness in the Internet era.

Dual Adaptive Turbo Coded Modulation for Integrated Multimedia Service Transmission

This paper proposes a cross-layer dual adaptive coded modulation architecture using turbo codes for mobile multimedia communication, which adapts to both the varying channel characteristics and the QoS of various multimedia services simultancously to increase the average system throughput substantially. A pragmatic channeladaptive turbo coded modulation schcme, which comes within 2.5 dB of the Shannon limit, is optimally designed, and then a QoS-adaptive scheme is superimposed to build the dual adaptive architecture. Simulation results show that the novel dual adaption reduces the gap from the fading channel capacity to 2 dB when assuming different services occur in equal probability and the service duration follows exponential distribution.

Studies on the Crystallization Properties and Morphology Structure of the Cationic Dyeable Polypropylene Fibers

The crystallization properties and morphology structure of the cationic dyeable polypropylene fibers which were produced by the blending spinning method were studied by making use of X-ray and scanning electron microscopy (SEM). It comes to the conclusions that the larger the crystallite size in the fibers is , the better the dyeable properties of the fibers are and there is a little compatibility between the dyeable agent and polypropylene resin. And the dye-uptake of the fibers may be up to 90% because the dyeable agent can uniformly be scattered in polypropylene.

Diagnosis of the Medium-Range Variation of the Subtropical High over the Western Pacific during a Meiyu Process by Three-Dimensional E-P Flux

In this paper, using the daily grid data (2.5 × 2.5) of the ECMWF / WMO, we have computed respectively the three-dimensional wave activity flux in the stages of pre-onset, prevailing and post ending of Meiyu from 1 to 31 July 1982. The potential vorticity field is taken as the physical quantity relating the wave activity flux to the variation of the subtropical high over the Western Pacific. It is found that the three-dimensional wave activity flux is a powerful means for diagnosis of the variation of the subtropical high over the Western Pacific: The region of the subtropical high is just the confluence area of wave energy, whose changes in intensity and range decide the variation of the subtropical high. The confluence of wave energy comes from the monsoon flow in low latitudes, the Meiyu rain belts in middle latitudes and the heating fields on the eastern side of the Qinghai-Xizang Plateau. The relation between these sources and the subtropical high displays the self-adjusting mechanism among members of East-Asia summer monsoon.

DETECTION OF EB VIRUS EARLY ANTIGEN IN NASOPHARYNGEAL CARCINOMA (NPC) USING A NEW MONOCLONAL ANTIBODY--BAE-5

A mouse monoclonal antibody against EB virus EA-R named BAE- 5 was prepared applying hybridoma technique by use of n-butyric add and croton oil induced Raji cells as immunogen.And then, 34 NPCs and 29 mm-NPC neoplasms were detected by the BAE-5 using APAAP immunohistochemical staining method.The results Indicated that all of the 34 NPCs and 9 of the 29 non-NPC neoplasms could reacted with the BAE-5 in spite of the columnar epithelium reserve cells showing positivity also. It is reasonable to come to the conclusion that most of the NPC cells can not only harbour EBV DNA but some of them be able to express EA-R. Some non-NPC neoplasms being demonstrated BAE-5 posttlvlty may be due to the presence of EBV EA- R antigenic epitope or polypeptides simulating the structure of EA-R. The authors think that these findings have theoretical significance for understanding the role of EBV- encoded poiypeptides, especially EA complex, In the development and progression of NPC as well as some non- NPC neoplasms harbouring EBV-DNA.

Near-infrared polarimetry of the GG Tauri A binary system

A high angular resolution near-infrared image that shows the intensity of polarization for the GG Tau A binary system was obtained with the Subaru Telescope. The image shows a circumbinary disk scattering the light from the central binary. The azimuthal profile of the intensity of polarization for the circumbinary disk is roughly reproduced by a simple disk model with the Henyey-Greenstein phase function and the Rayleigh function, indicating there are small dust grains at the surface of the disk. Combined with a previous observation of the circumbinary disk, our image indicates that the gap structure in the circumbinary disk orbits counterclockwise, but material in the disk orbits clockwise. We propose that there is a shadow caused by material located between the central binary and the circumbinary disk. The separations and position angles of the stellar components of the binary in the past 20 yr are consistent with the binary orbit with a = 33.4 AU and e = 0.34.

THERMOLUMINESCENCE PROPERTIES OF CALCITE FROM ERTAN, SICHUAN PROVINCE

Thermoluminescence (TL) can be produced by heating in most of the natural minerals. The luminescent phenomenon of the mineral may come fram (ⅰ) defect of crystal during growth; (ⅱ) impurity sneaked into the crystal lattice; (ⅲ) damage of a perfect crystal lattice by nuclear radiation; (ⅳ) effect of mechanical power (such

格子Boltzman方法数值模拟微通道内不互溶液液两相流动

利用基于场介子格子Boltzman(LB)方法对T形微通道内油-水不互溶两相流动进行了数值模拟.通过静止液滴算例改进该两相流LB模型且验证了模型的有效性,成功数值模拟了T形微通道内油水两相流的五种不同流型.数值模拟结果和实验数据定性和定量吻合很好,表明本文数值方法的有效性.此外,采用改进后的LB两相流模型模拟了不同界面张力和接触角条件下的液滴形成过程,讨论了这两个变量对流型和液滴形状的影响.结果表明LB方法是研究微通道内不互溶两相流的一种有效的数值工具,能够对各种涉及不互溶多相流微流体设备的设计提供指导.

哑石诗歌在美国的译介与传播——美国笔会/海姆翻译奖得主安敏轩教授访谈录

美国康奈尔大学安敏轩教授凭借翻译中国当代诗人哑石的诗歌选集《花的低语》荣获2017年度美国笔会/海姆翻译奖。在此次访谈中,安敏轩教授详细谈论了他在翻译哑石诗歌中所遇到的困难、挑战以及对策,深入探讨了中国当代诗歌在美国的翻译和研究,对中国当代文学的海外传播研究具有重要的借鉴意义。

Durable, superhydrophobic, antireflection, and low haze glass surfaces using scalable metal dewetting nanostructuring

In this paper we report a multifunctional nanostructured surface on glass that, for the first time, combines a wide range of optical, wetting and durability properties, including low omnidirectional reflectivity, low haze, high transmission, superhydrophobicity, oleophobicity, and high mechanical resistance. Nanostructures have been fabricated on a glass surface by reactive ion etching through a nanomask, which is formed by dewetting ultrathin metal films （〈 10 nm thickness） subjected to rapid thermal annealing （RTA）. The nanostructures strongly reduce the initial surface reflectivity （-4%）, to less than 0.4% in the 390--800 nm wavelength range while keeping the haze at low values （〈 0.9%）. The corresponding water contact angle （0c） is -24.5~, while that on a flat surface is -43.5~. The hydrophilic wetting nanostructure can be changed into a superhydrophobic and oleophobic surface by applying a fluorosilane coating, which achieves contact angles for water and oil of -156.3~ and -116.2~, respectively. The multicomponent composition of the substrate （Coming~ glass） enables ion exchange through the surface, so that the nanopillars＇ mechanical robustness increases, as is demonstrated by the negligible changes in surface morphology and optical performance after 5,000-run wipe test. The geometry of the nanoparticles forming the nanomask depends on the metal material, initial metal thickness and RTA parameters. In particular we show that by simply changing the initial thickness of continuous Cu films we can tailor the metal nanoparticles＇ surface density and size. The developed surface nanostructuring does not require expensive lithography, thus it can be controlled and implemented on an industrial scale, which is crucial for applications.

CATALYST TECHNOLOGY DEVELOPMENT FROM MACRO-,MICRO- DOWN TO NANO-SCALE

Catalyst and catalytic process technology has been an ever-growing field that involves chemical engineering, chemistry, and material science. A number of excellent review articles and books have been published on the subject. In this work, the author reviews the evolution and development of catalyst products with multi-scale methodology. The catalyst technologies are classified into three levels, macro-scale （reactor size）, mini-and micro-scale （catalyst unit）, and nano-scale （catalyst intrinsic structures）. Innovation at different scales requires different sets of expertise, method, and knowledge. Specific examples of significant impact to practical application are used to illustrate technology development at each scale. The multi-scale analysis enables clear delineation of technology components and their relationship for a catalyst product and catalytic process. Manipulation of catalyst structures at nano-scale to increase intrinsic activity and/or selectivity is considered of large potential for future catalyst product development. Recent research results on Cu-CeO2 and Au-CeO2 composite catalysts for air pollution control and hydrogen production are used to show how novel catalytic properties can be discovered by unique combination of different but common materials at the nano-scale.