the present status and some developing trends

... Group area Other two sampling points are located at right in the middle of the city where the impermeable bed is lacking and also are nearby the alluvial area On the other hand, the NO3-N concentration ... at the sampling points representing each water-quality group Situation at eastern part (Group area) and southeastern part (Group area) The groundwater in these areas is the most important as the ... increase and there is no denying that it will exceed the drinking water quality standard in near future The earliest possible every effort to determine the primary pollutant source and to reduce the...

Ngày tải lên: 05/09/2013, 09:38

... fundamental and applied levels include the design of some bio-based polymers, the introduction of hybrid polymeric formulations, and the reengineering of well-established polymers of synthetic and natural ... microorganisms The carbon in these polymers is returned to the biocycle, and there are no harmful residues These are the oxo-biodegradable polyolefins, as defined below According to the ASTM definition ... antioxidants are present Thus, the shelf life and use life of the plastics are maintained for a period that is controlled by the amount of antioxidant (or other stabilizing additives) present in the formulation...

Ngày tải lên: 25/10/2013, 08:20

... (section 2.1.1), and the Many Body Perturbation Theory (MBPT) through the GW (section 2.2.1) and the Bethe-Salpeter (BS) (section 2.2.2) methods The study of the physical systems is presented in ... associated to hydrogen content in the core layer Therefore the choice of the waveguide material determines the wavelength of the signal, the integration density and the minimum intrinsic losses A ... stoichimetric oxide and silicon is induced by thermal annealing The duration of the thermal treatment, the annealing temperature, and the starting excess Si content all determine the final silicon...

Ngày tải lên: 04/06/2014, 14:18

... known them since I was a child (not I’ve been knowing them since I was a child) EXERCISES I Put the verbs in brackets into the present perfect or the pres ent perfect continuous tense (In some ... Bảng so sánh THE PRESENT PERFECT CONTINUOS - emphasises how long I’ve been reading for the past two weeks THE PRESENT PERFECT - says how many times I’ve read three articles - focuses on the activity ... speaker is What have you done? (the speaker is interested in the activity) - I’ve written my essay (the essay is essay is finished or not) - the activity interested in the result of action) Thì hoàn...

Ngày tải lên: 27/07/2014, 06:21

... (find) in his garden Then he (go) away but he (not forget) the snake and some years later he (return) and (look) for it 29 He (find) the snake who (recognize) its old friend and (coil) round him ... family and (go) to live on a Pacific island You (understand) what the lecturer is saying? ~ No, I (not understand) him at all What you (have) for breakfast usually? ~ I usually (eat) a carrot and ... to like the life 26 Why Mrs Pitt (look) so angry? ~ Mr Pitt (smoke) a cigarette and (drop) the ash on the carpet 27 This is our itinerary We (leave) home on the 8th, (arrive) in Paris on the 9th,...

Ngày tải lên: 27/07/2014, 06:21

... stands destruction arose after 1982, and in the first half of the 1980s the health conditions of stands gradually worsened In the period after 1988 health improvement and decline of the stands ... complete, since some data on the soil quality are lacking, and mycorrhizae were sampled only in the autumn 1994, they indicate some changes that occurred during the last decade As for the crown defoliation ... spruce stands in 2004–2006 gave the unique opportunity to compare the results with another investigation conducted in the same localities ten years ago, between the years 1991 and 1995 Even if these...

Ngày tải lên: 07/08/2014, 03:22

... macromolecular synthesis For instance, there are two peaks in the rate of protein synthesis, one in the S period and the other in G2 (Mittermayer et al, [21]) General conclusion It would appear that there ... interferometry and then placed it in the cycle by following it as it moved about until it divided The difference in timing between the measurement and cell division gave the timing in the cycle A ... [22]) These are complex and can illustrate the relations between many components of a network at the event, on reasonable assumptions They are important aids in understanding the events and are...

Ngày tải lên: 13/08/2014, 22:22

... constituent is the modifier and the second one is the head However, there are some cases as in coordinative, dvandva the two elements are equal In noun-centred compound nouns, the first element (the dependent) ... calculated the percentage Common errors were also listed Then the result was analyzed and discussed The table in the Appendix shows the analysis of the result collected Below are some findings and discussion ... level, learning conditions and how they understand and use compound nouns in this textbook as well as some common errors they often make Then the suggestions for teaching and learning English compound...

Ngày tải lên: 02/03/2015, 14:29

Ngày tải lên: 29/08/2016, 19:09

... 1.3.1.3 Affect the security and politic 1.3.2 The solutions control GIB 1.3.2.1 The intervention of some countries in the world 1.3.2.2 The interventions in Vietnam Chapter SUBJECTS AND METHODS ... major obstacle to the propaganda by Bac Giang, over 90% of the population live in rural areas In the opinion of the subjects, the monitoring of implementation of the law of the authorities is ... selection Need for further studies to evaluate the influence of the religious factor, the economic condition of the subjects to the sex ratio at birth and unshakeable effectiveness of the interventions./...

Ngày tải lên: 11/05/2016, 09:58

... 10 and 11, published by the Ministry of Education Design of the study The study consists of three parts: Part One: Introduction presents the rationale, the aim, the method, the scope and the ... parts The first one is the context of the study The second part is the research methodology which consists of the participants and instruments of the study 2.1 The Context of the Study 12 The study ... ANALYSIS AND DISCUSSION In this chapter, the results of the study are presented The data has been collected from the questionnaires, the class observations and the interviews The result will be presented...

Ngày tải lên: 07/11/2012, 14:44

... good tests and theoretical ideas on test reliability and validity as well as achievement tests Chapter 3- The study is the main part of the thesis showing the context of the study and the detailed ... chapter, the writer has presented a brief literature review that sets the ground for the thesis Due to the limited time and the volumn of this thesis, the writer wishes to focus only on evaluating the ... there are two modes, which are and Measures of Dispersion: the standard deviation (sd) and the range Range is the difference between the highest and the lowest scores Range = 8-0 = - 26 - Standard...

Ngày tải lên: 07/11/2012, 15:05

... by the teachers in charge of the subject and they design the syllabus (2) The syllabus was not logical in semesters and did not satisfy students’ needs and future jobs (3 )The English bachelor and ... useful The choice of the language functions and notions of the second year student is based on the communicative needs of the student and the requirements of the student’s future career 3.3.2.2 The ... organize the information -Giving an oral presentation: involving the audience -The informative presentation: describing and analyzing the performance -The informative presentation: signposting the...

Ngày tải lên: 07/09/2013, 13:19

... about the thesis First, the rationale is about the main reasons which enhance the author to this thesis Then, the purpose of the study introduces the aims to the thesis And the scope of the study ... elements: the sender, the message and the listener The sender, such as the speaker, the television, the radio, the tape recorder, etc., gives out the message The message is what is said And the listener ... the conclusion would let some recommendation for further research in the future In conclusion, the thesis will present all the results of the process of studying the theoretical background, then...

Ngày tải lên: 14/12/2013, 00:41

... carry out the study of identifying the common errors of grammar and lexis and helping them find out the effective solutions Method of study With the purpose of the study is to help the first ... speakers, who use them all the time On the other hand, other combinations may be unnatural and just sound "wrong" (www.learningenglish.com) E.g: The gangsters live by dirty money The “dirty money” ... further study Due to the limitation of time and knowledge, this graduation paper has not yet covered the other aspects of grammar and lexis Beside the common grammatical and lexical errors of the...

Ngày tải lên: 14/12/2013, 16:45

... another despite the fact that they are taught by the same teachers and the same methods Although the survey occurs in the scope of students in class level, the survey will partly point out the ... to review the theories related to the matter in concerned to form a theoretical framework for the analysis, collect books and materials, find and select necessary information Then, the information ... styles as a theoretical background for the study The theories about first and second language learning and factors affecting second language learning are presented in the comparison with the first...

Ngày tải lên: 18/12/2013, 10:08

... includes the aims, the description of the subjects, research setting, and the ways to carry out the study The results of the study are presented followed by the discussion and analysis of the data The ... statistically presented in the forms of tables, or charts 2.1 The overview of the survey 2.1.1 Aims of the survey 19 The data has been collected from the students’ questionnaire and the analysis of the ... II is the main part of the study (the survey) that includes the description of the subjects, setting, data collection instruments and procedures It also presents the results collected from the...

Ngày tải lên: 18/12/2013, 10:08

... care to the accuracy of the content and the fluency of technical speaking Normally, accuracy is the content of the talk or the conversation 25 and the fluency is the way students present their ... keep the balance between the content and the form of the talk or the conversation If teachers control the activities well, the students may avoid the mistake that the talk is too long but the ... of the thesis In this chapter, the information about the aims, scopes and the research methods of the study are mentioned The second chapter is named Theoretical background In this chapter, the...

Ngày tải lên: 18/12/2013, 21:45