sample preparation and analysis
Soil and Environmental Analysis: Modern Instrumental Techniques - Chapter 12 (end) pps
Ngày tải lên :
11/08/2014, 12:21
... about standardization and quantification can be found in Harvey (2000) Routine GC analysis for soil and/ or sediment samples involves carrying out confirmatory calibration checks prior to sample analysis ... methanol, and the sample preparation is performed on the SPE manifold (suction pump and sample manifold) The aqueous soil extract sample is passed through the column at mL minÀ1 or less Sample volume ... the sample is discarded, as it may overload the column and detector and cause a reduction in resolution Common split ratios are between 15 : and 40 : 1, and thus a large proportion of the sample...
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Effect of Process Parameters on the Degradation of Polychlorinated Biphenyls in Water Matrix using UV/H2O2
Ngày tải lên :
05/09/2013, 09:08
... grade hexane, AR grade methanol, and Varian C18 cartridges were used for sample preparation and extraction For the analysis of total PCB concentration in the samples, a Gas Chromatography Shimadzu ... solution and initial PCB concentration on the degradation of PCBs in water matrix - 10 - Journal of Water and Environment Technology, Vol.3, No.1, 2005 MATERIALS AND METHODS Materials, Reagents and ... Journal of Water and Environment Technology, Vol.3, No.1, 2005 From the GC-MS results, it can be seen that the PCB sample used contains long-chained alkanes like dodecane and eicosane and highly chlorinated...
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A discourse analysis of film reviews in english and vietnamese
Ngày tải lên :
26/11/2013, 13:26
... inductive and reductive methods are inevitable 3.3 RESEARCH PROCEDURES 3.4 DATA COLLECTION AND ANALYSIS 3.4.1 Data Collection 3.4.2 Data Analysis 3.5 RELIABILITY AND VALIDITY 10 CHAPTER FINDINGS AND ... analysis as the study of how and for what purposes language is used in a certain context and the linguistic means to carry out these purposes 2.2.3 Spoken and Written discourse In discourse analysis ... similarities and differences between English and Vietnamese film reviews in terms of their layout, lexical choice, syntactic structures, and cohesive devices? What are some suggestions for teaching and...
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A discourse analysis of book reviews in english and vietnamese
Ngày tải lên :
26/11/2013, 13:30
... of language and the thematic and informational structure of speech and writing Cook (1989) [9] explains the theory of DA and suggests some practical relevance to language teaching and learning ... Discourse Analysis Brown and Yule (1983: iii) [6] say that “Discourse is language in use” and remark that “Discourse Analysis is the study of language use with the reference to the social and psychological ... DESCRIPTION OF POPULATION AND SAMPLE First, determining some criteria to select the samples such as the number of samples, the length of texts, sources, types, dates, etc., and then, classifying...
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Contrative analysis of primary sentences in english and those in vietnamese
Ngày tải lên :
12/12/2013, 00:03
... most power in hand, the words that he speaks out are orders and commands, and his soldiers must follow what he wants, otherwise, they will severely be punished In military, the commander can give ... Vietnamese and vice versa Besides, we suggest some exercises and activities that may help language learners or users in learning and using primary imperative sentences in English and Vietnamese ... sentences in English and those in Vietnamese have a two - part structure: head act and supportive moves Subject or without subject? According to Randolph Quirk [1972: 402] and the data we have...
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A contrastive analysis of negative questions in English and Vietnamese
Ngày tải lên :
18/03/2014, 00:21
... types: end focus and contrastive – focus The next chapter is a contrastive analysis of the English and Vietnamese negative questions 10 CHAPTER 2: A CONTRASTIVE ANALYSIS OF ENGLISH AND VIETNAMESE ... “Individuals tend to transfer their forms and meanings and their distribution of forms and meaning of their native language and culture to the foreign language and culture” Making mistakes is very ... way of using and asking questions 33 Language learners tend to transfer their forms and meanings and their distribution of forms and meaning of their native language to the foreign and tend to...
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báo cáo hóa học: " Fractal time series analysis of postural stability in elderly and control subjects" pot
Ngày tải lên :
19/06/2014, 10:20
... diffusion analysis plots for elderly displacements Stabilogram anteroposterior and mediolateral and control Stabilogram diffusion analysis plots for elderly and control subjects for anteroposterior and ... 5-s, and HSand resultant (c) and elderly subjects for Differences in HS between control and elderly subjects for 2.5-s, 5-s, and 10-s window lengths anteroposterior (a), mediolateral (b), and ... calculated for analysis windows of 2.5, 5, and 10 s, and analysis commenced as soon as subjects had their two feet on the platform In contrast Norris and colleagues imposed a standardised foot...
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Báo cáo khoa học: "Transcranial Doppler ultrasound analysis of resistive index in rostral and caudal cerebral arteries in dogs" pps
Ngày tải lên :
07/08/2014, 18:21
... housed indoor for minimum month and were fed a standardized diet (Nestle Purina, Korea) All dogs were screened and considered normal based on complete neurologic and physical examinations prior ... completion of the infusion and at 15, 30, 45, and 60 Withdrawal periods between each medication were over days Statistical analysis Data were reported as means ± standard deviation (SD) The RI ... CCA are the average of right and left CCA Statistical analysis was performed using the SPSS statistical computer program The RIs in the RCA and CCA obtained from male and female were compared using...
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a contrastive analysis of performative verbs in english and vietnamese = phân tích đối chiếu động từ ngữ vi trong tiếng anh và tiếng việt
Ngày tải lên :
02/03/2015, 14:17
... objective The analysis of the similarities and differences of PVs in English and Vietnamese may be significant and important to teaching and learning PVs Through describing the structures and meanings ... author hopes that the analysis of similaries and differences of directive PVs in English and Vietnamese may be of paramount significance and importance to teachers in teaching and Vietnamese learners ... tries to: - present and describe the structures and the meanings of directive PVs in English and Vietnamese - point out the similarities and differences of directive EPVs and their Vietnamese...
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a contrastive analysis of nominal substitution in english and vietnamese conversation = phân tích đối chiếu phép thế danh từ trong ngôn bản hội thoại tiếng anh và tiếng việt
Ngày tải lên :
02/03/2015, 14:18
... forms and meanings and their distribution of forms and meanings of their native language and culture to the foreign language and culture‖ So far a lot of linguists have studied contrastive analysis ... conversation is notoriously difficult to understand and analyze and it can seem almost contradiction in terms However, with the focus of discourse analysis and especially in this study the focus of ... forms your and mine which substitute for wallet and cell phone respectively Mine and his in [2:12] substitute for my bed room and his bed room, yours in [2:13] substitutes for your and toys The...
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A contrastive analysis of nominal substitution in English and Vietnamese conversation
Ngày tải lên :
10/08/2015, 19:46
... learners of English Therefore, the analysis of the similarities and differences of Ns in English and Vietnamese conversation may be significant and important to teaching and learning English language ... Searle (1969) and Grice (1975) also made great impact in the study of language and social action, which is reflected in speech act theory and the formulation of conversational maxims and the appearance ... discourse analysis was dealt with perfectly and concretely in M.A.K Halliday’s functional approach to language Halliday's linguistic model emphasizes the social function of language and the thematic and...
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A discourse analysis of medicine advertisements in english and vietnamese
Ngày tải lên :
11/05/2016, 14:25
... English and Vietnamese in terms of their layout, lexical features, syntactic structures and cohesive devices - To find out and explain the similarities and differences between English and Vietnamese ... of discourse analysis Tran Ngoc Them (1999), Diep Quang Ban (2003), Nguyen Hoa (2003) and Nguyen Thi Viet Thanh (2001) As regards advertising and discourse analysis, some books and related studies ... out analyzing EMAs and VMAs in terms of their layout, lexical feature, syntactic structure and cohesive devices Finally, the analysis results of EMAs and VMAs would be examined and compared in each...
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Báo cáo y học: "Functional genomics analysis of low concentration of ethanol in human hepatocellular carcinoma (HepG2) cells. Role of genes involved in transcriptional and translational processes"
Ngày tải lên :
31/10/2012, 15:28
... (AP1, Elk1, Stat1, SRF and NFκB) and expression of apoptotic genes (Fas receptor, Fas ligand, FADD and caspase 8) [19] In addition, as confirmed by the functional genomics analysis presented in ... treatment) Experiments were done in triplicate (n=3) and error bars indicate standard deviation among the triplicate samples 31 Gene ontology analysis Once the ethanol-regulated genes were validated, ... Germany) Samples were prepared in triplicate and real time PCR measurement for each sample was done in duplicate The expression level of each gene was normalized using the control group (group 2) and...
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Comparing the cultural and linguistic analysis of the English word “meal” and words relating to it in contrast with Vietnamese equivalents.
Ngày tải lên :
15/04/2013, 15:11
... They often have cereal or porridge, egg and bacon followed by toast and marmalade and coffee and tea or they may just have a toast and marmalade and coffee and tea *Elevenses - brunch Elevenses ... of making tea and using service by rinsing teapot with boiling water and putting tea and hot water into the teapot and waiting for a short time and pouring it into cups (with handle or not) Regardless ... - Field of word meal in English and in Vietnamese equivalents - Cultural and linguistic analysis of the English word meal Chapter III Cultural and linguistic analysis of Vietnamese equivalents...
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Analysis of Phosphorus Behavior in the Giant Reed for Phytoremediation and the Biomass Production System
Ngày tải lên :
05/09/2013, 09:38
... Giant Reed, Reed, and Silver Grass - 144 - Journal of Water and Environment Technology, Vol 7, No 2, 2009 Fig - Carbon and Phosphorus Cycles System Using the Giant Reed MATERIALS AND METHODS Giant ... [day], C0 and Cn (C0 ≠ Cn) are the concentration of phosphorus in culture medium when t=0 and t=n, respectively, and Δt is the time elapsed [day] From this equation, the parameters Imax and Km were ... roots and rhizomes are cropped except for the roots and rhizomes remaining for the next year Thereafter, the giant reeds grow with the rhizome extension, and the giant reed community in the wetland...
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An Analysis of Domestic Water Demand Structure and Water Recycling in Beijing
Ngày tải lên :
05/09/2013, 10:17
... use and patterns of behavior, such as frequency of showering and washing, were different in each season: 53L, 63L, and 51L in spring and fall, summer, and winter, respectively Thus, the demand ... use in Beijing is 220L——53L, 63L, and 51L in spring and fall, summer, and winter, respectively Thus, water demand in summer is 1.2 times that of the winter demand This seasonal tendency is consistent ... H and Abbaspour K C (2007) Analysis of wastewater reuse potential in Beijing, Desalination, 212, 238-250 Zhang H H and Brown D F (2005).Understanding urban residential water use in Beijing and...
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Energy efficiency and cost analysis of canola production in different farm sizes
Ngày tải lên :
05/09/2013, 16:30
... The sample size was determined using the random sampling method [8]; so, it was calculated as 130 and then the 130 farms were randomly chosen from 30 villages in the area of study For the analysis ... efficiency and economical analysis They reported that, both the total energy input and output energy in apricot production decreased when farm size increased; while, the energy use efficiency and energy ... parameters when the availability of arable land is the limiting factor for plant production [21] The energy inputs were divided into direct and indirect and renewable and non-renewable energy forms [18]...
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A discourse analysis of advertisements in terms of persuasion strategies in english and vietnamese
Ngày tải lên :
26/11/2013, 13:29
... discourse Analysis of Advertisements in terms of persuasion strategies in and discourse analysis are mentioned by well-known scholars such as English and Vietnamese” will be helpful for teaching and ... languages, English and 2.3 SUMMARY Vietnamese Advertisements 3.2 RESEARCH PROCEDURE 3.3 DESCRIPTION OF SAMPLE 260 advertisements (130 in English and 130 in Vietnamese) are randomly taken and classified ... Headline, the Body Copy, the Illustration, and the future” and “Guarantees” and they are absent from the other Standing Details ion which the Headline and the Body Copy are the strategies Nevertheless,...
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