The results show that,at 282 nm wavelength, the absorbancy is linear respect to the concentration when the concentration of stepholidinum is from 00. 0100 to 0. 0500 mg·mL-1 in 0. 05mol·L-1H2SO4. The regression equation is A= 3. 02×10-4 + 17.12c, r =0.9996. The method given by the article is simple,quick and accurate.
We take "yes" as an example to perform the identification of its context, because "yes" has a more obvious context-dependable word. In the process, we use link grammar parser, which provides an accurate grammatical relationship among words and a reliable basis for the identification of sentence patterns and the analysis of sentence structures, ensuring the accuracy of the identification of context.
Taking Contrastive Phonetics as its basic theoretical frame and the levels of vowel, consonant, and intonation/tone into consideration, this paper mainly explores the negative effects of the phonetic system of Huzhou Dialect upon the acquisition of the English phonetic system. It also offers plausible solutions in teaching practice so as to help students overcome the negative transfer of dialectal phonetic system, acquire an accurate phonetic system of the target language and enhance the ability of crosscultural communication.
In the use of the documents and material,we should pay attention to the question stemming from three aspects:the first is careful quotation,the second is accurate analysis,the third is deep understanding.
The solution of the scheme is shown to be first order accurate in the discreteL∞ norm, uniformly in the perturbation parameter.
Thus the results under Type- II right censoring can be used directly to get more accurate estimators by Bayes method.
This method proved to be simple, reliable and accurate.
Based on the mass spectra search function of GC/qMS with the aid of the discriminability of the geometrical isomer by GC/FTIR and the ability to determine the accurate mass charge ratio (m/z) by GC/oaTOFMS, 68 GC eluants were identified successfully.
Accurate measurement of neodymium isotopic composition using Neptune MC-ICP-MS