Patterned deposition of multi-walled carbon nanotubes on self-assembled monolayers

The excellent electro-mechanical properties and chemical stability of CNTs promise a prospective ap- plications in nanotechnology. For electronic applica- tions, CNTs have been proved successful in practice in producing components such as a junction and f…     

Materials informatics and study on its further development

NOWADAYS,WITH THE DEVELOPMENT OF MATERIALS SCI-ENCE AND TECHNOLOGY AND WITH THE CONTINUOUS EMER-GENCE OF NEW MATERIALS,TECHNOLOGIES,PROCESSES AND METHODS,PROLIFERATION AND COMPLEXITY OF MATERIAL SCI-ENCE DATA HAVE INCREASED ENORMOUSLY.THEREFORE,DIFFI-CULT…     

Dust storm in Asia continent and its bio-environmental effects in the North Pacific： A case study of the strongest dust event in April, 2001 in central Asia

The iron hypothesis, first proposed by John Martin in 1990[1], suggests that some surface oceans such as North and Equatorial Pacific Oceans have high nutrient but low chlorophyll (HNLC). Thus iron coming from terrestrial dusts is the primary factor limit…     

Immune responses of a designed HIV-1 DNA vaccine on rhesus monkeys

According to the UNAIDS/WHO report (http:// www.unaids.org/Epi2005/doc/report.html), there are about 40.3 million HIV/AIDS survivors, and the new HIV infection number amounts to about 4.9 million, while the death number is some 3.1 million in the world in…     

Time-frequency analysis of SH waves in an isotropic plate bordered with one elastic solid layer

Acoustic sensing utilizing shear-horizontal acoustic plate mode (SHAPM) has attracted much interest in recent years[1―3] due to the fact that the absence of the component of the displacement normal to the surface allows each SH mode to propagate in the p…     

Effect of Land Use on Soil Properties in Debris Flow Bottomland： A Case Study at Xiaojiang Basin, Yunnan

In order to understand the effect of different land use on soil physics and nutrients properties of the debris flow bottomland, a case study at Daqing gully （in Xiaojiang Basin, Yunnan） was conducted in 2004. Soil samples were taken at depth of 0-10,10-20,20-40,40-60,60-80 cm under three land use patterns crop bottomland （CL）, forest bottomland （FL）, and barren bottomland（BL）. The results showed that the developing bottomland to CL promoted soil toaccumulate total phosphorus （TP） and available phosphorus （AP）, pH value transferred from neutral to alkalescency, and organic matter decreased significantly. Furthermore, the contents of total nitrogen （TN） and available nitrogen （AN） in CL were lower than that of FL and BL because the growth of crops consumed more nutrients in soil. The results also showed that the contents of TP, AP and available potassium （AK） in soil were positively correlated with soil particle.     

Wind vector retrieval using dual polarization imagery of ASAR

A new algorithm for retrieving wind vector using dual polarization imagery of advanced synthetic aperture radar (ASAR) is developed and tested. Based on the combination of co-polarization and cross-polarization, this new algorithm effectively eliminates the 180° ambiguity which occurs when using single imagery of the ASAR to retrieve wind vector. This algorithm also solves the problem that the retrieval results will break down on very small spatial scales. The results retrieved from dual polarization imagery of ASAR show that the wind speed and direction are in agreement with the data from Quikscat and buoy measurements. The root mean square errors of wind direction and speed between the retrieved results and data from Quikscat are 2.21° and 0.53 m/s, respectively. Comparisons between the new method and the traditional method show that the new methods fit the buoy data and Quikscat data a little better than the traditional method in this image.     

Retrospect to Human Deep Space Exploration History and Its Prospect in China

1The Goals of Deep Space ExplorationThe deep space exploration is relative to nearearth space exploration.According to theWhitePaper on China’s Space Activities in2000[1],theexploration of space other than earth is presentcalled“Deep Space Exploration”in China.Thisconception is not unchangeable.It will evolvewith improvement of space technologies andcapabilities of mankind.Generally activities of human space can becategorized into three fields:Earth ApplicationSatellite,Manned Space…     

Subsumption Checking between Concept Queries in Different Ontologies Based on Mutual Instances

This paper proposes a checking method based on mutual instances and discusses three key problems in the method： how to deal with mistakes in the mutual instances and how to deal with too many or too few mutual instances. It provides the checking based on the weighted mutual instances considering fault tolerance, gives a way to partition the large-scale mutual instances, and proposes a process greatly reducing the manual annotation work to get more mutual instances. Intension annotation that improves the checking method is also discussed. The method is practical and effective to check subsumption relations between concept queries in different ontologies based on mutual instances.     

Password-Based Group Key Agreement Protocol for Client-Server Application

0 IntroductionWith the rapid advances of computer networks , moreand more users are connecting together to exchangelarge amounts of information and share useful resources .However ,the security issue is still a major gating factor fortheir full adoption; mainly due to many malicious adversariesresidingin networked environments will eavesdrop,interceptand modify the transmittedinformation.The client-server model , over past years , has enjoyedsignificant and continually increasing popularity in…