Effects of Rice Combine Harvester Application to Harvest Chinese Milk Vetch Seeds

During the test, the seed yield, Iabor efficiency, harvesting costs and eco-nomic benefits were compared and analyzed between mechanical harvesting tech-noIogy and traditional artificial harvesting technoIogy of Chinese miIk vetch seeds to studied the mechanical harvesting technoIogy and appIication effects. The resuIts showed that mechanical harvesting technoIogy increased the yield of 92.7 kg/hm2, reducing the seeds Ioss. It improved the Iabor efficiency and reduced the harvesting cost. For exampIe, a rice combine harvester was the equal of 18-20 person in the harvest quantity in one day, which directIy reduced the Iabor cost of 2 175-3 000 yuan/hm2 and increased the economic income of 3 307-4 099 yuan/hm2. So it wiI pIay an important roIe in soIving the shortage of Chinese miIk vetch seeds and ac-ceIerating the deveIopment of Chinese miIk vetch green manure crop in south China rice region.

Mechanism of separating muscovite and quartz by flotation

Flotation experiments were performed to investigate the separation of muscovite and quartz in the presence of dodecylamine(DDA), tallow amine(TTA) and dodecyltrimethylammonium bromide(DTAC). The adsorption mechanisms of these three kinds of amines on muscovite and quartz were studied by FT-IR spectrum analysis, contact angle measurement and molecular dynamics(MD) simulation. The results reveal that the separation of muscovite from quartz is feasible at strong acid pulp condition using amine collectors. TTA and DTAC show poorer collecting ability for flotation of the two minerals compared with DDA. Physical adsorption is found to be the main adsorption module of amine collectors on muscovite and quartz by FT-IR analysis. MD simulation results show a strong physical adsorption ability of DDA+ cation on muscovite and quartz(muscovite(001):-117.31 kJ/mol, quartz(100):-89.43 kJ/mol), while neutral DDA molecular can hardly absorb onto the surface of these two minerals. These findings provide a novel explanation for the flotation mechanism from the perspective of MD simulation.

A Study of Fossilization among Chinese Students in English Writing

This thesis investigates the causes of fossilization in English writing among two groups of English majors as well as the measures to deal with it. The experiment was conducted among 62 English majors from National University of Defense Technology, and both their questionnaires and written texts were collected as the source of data analyzed. With data collected from questionnaires and written texts, the study aimed to explore （a） the causal factors leading to fossilization in writing, （b） the strategies to deal with students＇ fossilization. Relevant information was elicited from the questionnaire, written texts. Quantitative data were treated with SPSS for descriptive analysis and correlation analysis. The results indicated that both external and internal factors can lead to fossilization in English writing. The external factors include input, instruction and environment in the learning, and the internal factors incorporate students＇ interest, learning strategy, motivation with their systematic knowledge. Based on the results of the experiment, the author attempts to discuss measures to deal with fossilization.

An Overview of the Smart Grid in Great Britain

This paper presents an overview of the current status of the development of the smart grid in Great Britain(GB).The definition,policy and technical drivers,incentive mechanisms,technological focus,and the industry's progress in developing the smart grid are described.In particular,the Low Carbon Networks Fund and Electricity Network Innovation Competition projects,together with the rollout of smart metering,are detailed.A more observable,controllable,automated,and integrated electricity network will be supported by these investments in conjunction with smart meter installation.It is found that the focus has mainly been on distribution networks as well as on real-time flows of information and interaction between suppliers and consumers facilitated by improved information and communications technology,active power flow management,demand management,and energy storage.The learning from the GB smart grid initiatives will provide valuable guidelines for future smart grid development in GB and other countries.

A New Auto-Backlund Transformation and Two-Soliton Solution for (3+l)-Dimensional Jimbo-Miwa Equation

Abstract By improving the extended homogeneous balance method, a general method is suggested to derive a new auto-Bgcklund transformation （BT） for （3-k l）-Dimensional Jimbo-Miwa （JM） equation. The auto-BT obtained by using our method only involves one quadratic homogeneity equation written as a bilinear equation. Based on the auto-BT, two-soliton solution of the （3＋1）-Dimensional JM equation is obtained.

Analysis of English literary works based on face theory

Brown ＆ Levinson＇s face theory is an important theory in Pragmatics and it is an influential theory in expounding the phenomenon of politeness. Through an analysis of the functions of ＂face＂ in English literary works, this article intends to shed new lights on literary pragmatics.

Amelioration of experimental colitis by Astragalus membranaceus through anti-oxidation and inhibition of adhesion molecule synthesis

AIM: To investigate the protective effects of Astragalus membranaceus(Am) against hapten-induced colitis in male Sprague-Dawley rats as well as its underlying mechanism.METHODS: Experimental colitis was induced in rats by enema administration of 2,4-dinitrobenzene sulfonic acid (DNBS). Rats were either pretreated with Am extract (2 or 4 g/kg, p.o. once daily) starting from 10 d before DNBS enema, or received Am post-treatment (2 or 4 g/kg, p.o.twice daily) on the three consecutive days following DNBS administration. Colonic lesion area and histological damage were determined, while the activities of myeloperoxidase (MPO) and xanthine oxidase, as well as reduced glutathione (GSH) content were measured in the excised colonic tissues. Besides, protein expression of inducible nitrite oxide synthase (iNOS), intercellular adhesion molecule-1 (ICAM-1) and P-selectin was also detected by Western blot analysis.RESULTS: Our findings had shown that both macroscopic lesion area and histological colonic damage induced by DNBS were significantly reduced by both Am pre- and post-treatments. These were accompanied by attenuation of the elevated colonic MPO activity and downregulation of the iNOS, P-selectin, and ICAM-1 protein expression.Besides, deprivation of colonic GSH level under colitis condition was also preserved.CONCLUSION: These results demonstrate that Am possesses both preventive and therapeutic potential in experimental colitis. The anti-inflammatory actions involve anti-oxidation along with inhibition of adhesion molecule synthesis in the colonic tissues.

The Importance of E-assessment in College English Writing

We focused on the e-assessment in college English writing issue from an online assessment tool perspective. Different from previous inquiries, this research addressed the importance of e-assessment in the study of college English writing. In particular, we aim to examine the importance of the e-assessment. We start with a brief introduction of e-assessment. An additional discussion of the use of e-assessment is also provided. We end the study with the conclusion that e-assessment plays an important role in college English writing. We identify in our study that the forms and the effectiveness of assessment in writhing have direct effect on learners＇ understanding of the curriculum of college English writing and determine their capacity to make advances in college English writing. As a result, we can propose that e-assessment plays a critical role in the learning experience in college English writing.

Comparison of Quartz filter and PTFE filter in monitoring anion ion concentration of PM10

PM10 samples of 62 Quartz filters and 75 PTFE filters from 28 Jul. 1999 to 10 Jan. 2000 in London were collected and analyzed. The difference between Quartz filter and PTFE filter in monitoring PM10 and anion ion concentration has been studied. The mean PM10, SO42- concentrations of Quartz filters were higher than those of PTFT filters, which had statistically significant （P〈0.05）. The mean PM 10 concentration of Quartz filter was almost 1.5 times of that of PTFE filter. However, there were no statistically significant among CI, NO3-, PO43 comparison of the two kinds filters （P〉0.05）. We should be careful when selecting filter to do research about PM10 and anion ion concentration.

In-situ growth of silver nanostructure on quartz glass substrates

Silver nanostructure compact aggregates on the surface of quartz glass substrates were synthesized by small gold seeds with the assistance of poly vinypyrrolidone (PVP) and irradiation of fluorescent lamp. The formation mechanism of silver nanostructure was proposed. The results show that both the PVP and the light irradiation are the keys to in-situ growth of silver nanostructure on quartz glass substrates. The silver nanostructure of the substrates which finally grow up to 150 nm after 20 h irradiation exhibits irregular shape, and some of nanoparticles stack to form bilayer. A new broad band appears in the absorption spectra of the substrates due to the interparticle dipole?dipole coupling of surface plasmon resonance response of the triangular silver nanoplate particles, which red shifts 600?800 nm as the particles grow up. The substrates have an emission band centered at 400 nm on their fluorescence spectra, and the fluorescence intensity shrinks as the average size of the silver nanostructure increases. The strongest SERS signal of SERS-active substrate is fabricated after 16 h.

Effect of butanol on flotation separation of quartz from hematite with N-dodecyl ethylenediamine

In order to investigate the effect of butanol on quartz flotation when N-dodecyl ethylenediamine(ND)was used as collector, single mineral flotation and artificial mixed mineral(hematite and quartz were mixed at a mass ratio of 3:2) separation were conducted in the laboratory. Experimental results indicated that addition of butanol could improve the collecting performance of ND on quartz and enhance the floatability of quartz. Best flotation recovery of quartz was obtained when butanol was mixed with ND at a mass ratio of 1:1. Moreover, the molecular structure of alcohols had a significant effect on mineral recovery. Best separation efficiency could be obtained when tert-butanol was added as it had the largest cross-sectional area. Zeta potential measurements indicated that alcohols could strengthen electrostatic adsorption between quartz and collector. Molecular dynamic simulations revealed that co-adsorption of alcohols along with ND had taken place on the quartz surface, and ND/tert-butyl combinations were more easily absorbed on the quartz surface.

Mechanism of different particle sizes of quartz activated by metallic ion in butyl xanthate solution

To investigate effect of metallic ion activation on different particle sizes of quartz in butyl xanthate solution,six common ions(Pb^(2+),Cu^(2+),Fe^(3+),Fe^(2+),Mg^(2+) and Ca^(2+)) were introduced as activators.The approaches of micro-flotation,adsorption test and zeta potential measurement were adopted to reveal the mechanism of ion activation.The results show that Pb^(2+),Cu^(2+) and Fe^(3+) are effective activators for the flotation of quartz in butyl xanthate solution because of their absorption on activated quartz surface.Average recoveries of fine particles(<37 μm) are greater than those of coarser particles(37-74 μm),suggesting that the former is easier to be activated and more likely to be floated and thus entrained in sulphide concentrate.From another perspective,addition of metallic ions(Pb^(2+),Cu^(2+) and Fe^(3+)) renders zeta potentials move positively,and addition of the same metallic ions and butyl xanthate makes zeta potential drop apparently,which support a mechanism where they adsorb onto quartz surface,resulting in an expected increase in butyl xanthate collector adsorption with a concomitant increase in the flotation recoveries.

Adsorption mechanism of N-laurel-1,3-diaminopropane in a hematite-quartz flotation system

The strong collecting performance of N-laurel-1,3-diaminopropane（ND13） with respect to quartz encouraged us to study its separation of hematite and quartz mixtures in a laboratory cell flotation test The results show that the best separation results can be achieved when the pulp pH is 7.27 and 58.3 mg/L collector plus 6.67 mg/L depressant are added to the mixture.Products with 58.45%,62.78%and 63.72% iron grades can be achieved respectively when mass ratio of hematite to quartz is 2：3,1：1,and 3：2.The adsorption mechanism of ND13 on a quartz surface was investigated by zeta-potential and X-ray photoelectron spectroscopy measurements.The results reveal that electrostatic and hydrogen bonding adsorption take place between ND13 and the quartz surface,and that ND13 mainly interacts with the oxygen atoms on the quartz surface.

The Brainy Bunch

China＇s punk pioneers Brain Failure do fashion shoots and sing in English. What＇s punk about that？

Teletandem as a Way of Enhancing Language Learning Between Brazilian and German Students

This paper aims at investigating the teletandem learning interactions between a group of Brazilian students from Instituto Federal de Educagao, Ciencia e Tecnologia do Estado de Goias, Brazil, and a group of foreign students from two German universities. In this study, the Brazilian students helped their foreign partners with Portuguese learning and were helped by them in the English learning. The participants used a synchronous computer software called Openmeetings and also an electronic dictionary as a complementary tool. Adopting a qualitative perspective in the data collection and analysis, this case study was conducted in the second semester of 2010. The data were collected by means of conversation sessions through Openmeetings and were analyzed in the light of studies on sociocultural theory as well as on tandem/teletandem language learning researches. The data analyses showed that the participants used English as an anchoring language to work with Portuguese and English itself, and German was introduced in the teletandem sessions. The data also showed that the whiteboard and the electronic dictionary were used as complementary resources to the use of audio and video for the language learning process the participants engaged in.

The Bamboos of Blekinge： The Writing of Cultures in Swedish Proletarian Fiction

The national identity of the source culture often constitutes an important hermeneutic flame fi＇om which a translated text is understood. At the same time, literary texts themselves sometimes have a tendency to resist cultural narratives and stereotypical ideas of a certain nation. This article explores how such a resistance is made in the English translations of four Swedish novels from the 1930s. These novels are all central texts in the history of Swedish literature, as they form the very basis of a literary current that had a huge impact on the development of the Swedish welfare state--proletarian fiction. In the translations of Harry Martinson＇s, Moa Martinson＇s, Eyvind Johnson＇s, and Ivar Lo-Johansson＇s breakthrough novels, the Anglophone target reader is faced with different kinds of disruptions of the Swedish national identity. Some of these disturb the conception of Sweden as a unified cultural space; others resist the idea of Sweden as a distinct cultural space. There is, however, no general rule to these disruptions： All four novels have their own, specific way of creating narrative resistance.

CLAY MINERAL ASSEMBLAGES AND THEIR IMPLICATIONS IN SHIHEZI FORMATION FROM THE HUAIBEI COAL-BEARING STRATA

Clay mineral assemblages in Shihezi Formation of Huaibei coal-bearing strata are determined by X-ray diffraction and Differential Thermal Analyzer, that is restated to the sediment faces and climatic changes in the source area, and to a lesser extent, alterations during burial diagenesis. In the Upper Shihezi Formation, the clay fraction is dominated by kaolinite in northern part of the coal field, which was formed in alluvial sediment environment. But in the South of Huaibei coal field, the clay mineral assemblage consists of mainly illite that reflects the influence of sea water. The predominately kaolinite and sederite composition of the clay fraction in the lower Shihezi Formation sediments documents less relief and gentle erosion of kaolinite rich soils developing under warm source area. In the lower part of Shihezi Formation, some chlorite is detected, which suggests transformation of illite or kaolinite to chlorite under conditions of burial diagenesis.

Cultural Identities of the Well-Educated Chinese Immigrant Children in the UK

Since the Reform and Opening-up in 1978, China has broadened and deepened its exchanges and relations with other countries. This has contributed to the increase in the migration of well-educated Chinese abroad and United Kingdom （UK） has become a most desirable destination for the elite Chinese immigrants. The impact of the migration of well-educated Chinese deserves particular attention and study, especially the second generation＇s cultural identities--this under-researched topic is the focus of this study. The study investigates the cultural identity differences between Chinese born children （CBC） and British born children （BBC） of the Chinese intellectual families living in Britain. Results indicated that both CBC and BBC had high pride in Chinese and British culture No significant evidence for cultural identity crises was found. The children investigated considered themselves as bi-culturalism and were content with ＂dual identities,＂ with the CBC a bit more Chinese, while the BBC a bit more British. Much smaller differences in views of cultural identity were reported.

Utilizing Electronic Reading Device （Kindle） in English as Foreign Language Reading Class

With the evolutionary change in information and communication technologies （ICT）, the definition of literacy has undergone substantial change to include the skills and strategies required to successfully adapt to the rapidly changing ICT contexts. This new definition presents an urgent need to acknowledge the gap between the types of reading experiences students come across at school and those they regularly practice outside the school. One way to bridge such gap is to expand the reading instruction to incorporate electronic reading device, like Kindle, to engage students in electronic reading. Many e-books feature multimodal functionalities, including audio, video, hyperlinks, and interactive tools. Research on this form of reading is still in its infancy in spite of some positive prospects for fostering literacy development and reading comprehension. Therefore, adopting a mixed method approach with 36 college freshmen in central Taiwan, the current study intended to fill in the void by investigating any difference in readers＇ reading comprehension and reading motivation, between the Kindle group and the print-based group. The results indicate that embedding aspects of technology into a traditional reading instruction boosted the participants＇ motivation to read. Nevertheless, the novelty-driven enthusiasm for electronic reading might not sustain students＇ reading motivation long enough to cultivate long-lasting reading habits. The results indicate that there was no significant difference in reading comprehension between two groups. Implications for utilizing electronic readers in EFL classes are also provided.