Báo cáo " Effects of the conditions of the microemulsion preparation on the properties of Fe3O4 nanoparticles " pot
Báo cáo " Effects of the conditions of the microemulsion preparation on the properties of Fe3O4 nanoparticles " pot
... VNU Journal of Science, Natural Sciences and Technology 24 (2008) 9-15 9 Effects of the conditions of the microemulsion preparation on the properties of Fe3O4 nanoparticles Nguyen ... of one microemulsion and a reactant Q in the other microemulsion, upon mixing, they will form precipitate PQ, which will be contained entirely within the aqueous cores of the microemulsions. ... hydrophilic surface to disperse them in non-aqueous and aqueous solvents, respectively. Changing the conditions of the preparation affected to the properties of the product. This technique showed...
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Báo cáo khoa học: Retrocyclin RC-101 overcomes cationic mutations on the heptad repeat 2 region of HIV-1 gp41 ppt
... regions of gp41 [12]. During 100 days of serial passaging, HIV-1strain BaL developed three cationic mutations in the presence of sublethal concentrations of RC-101 [14]. Of the three mutations, ... thus the dependence of viral replication on the presence of RC-101 is not surprising. The cationic mutations andloss of glycosylated residues suggest an attempt by the virus to repel the cationic ... mutations, one was found in gp120 and oneeach in the HR1 and HR2 regions of gp41, and allthree mutations converted a polar or anionic residue toa cationic residue [14]. In addition, the cationic...
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Báo cáo khoa học: What’s in a covalent bond? On the role and formation of covalently bound flavin cofactors doc
... observed on mutating the amino acids involved in covalent flaviny-lation. As mentioned before, removal of one of the covalent bonds affects the redox potential. However, on the basis of changes in the ... pKa(or rate of deprotonation) of the 8-methyl proton should be afunction of the electron affinity (i.e. redox potential) of the isoalloxazine ring. Alternatively, the attack by the nucleophilic ... Information on the physio-logical fate of the enzyme, e.g. cellular localization and the reaction that is catalyzed, as well as in-depthknowledge of the evolution of this diverse class of cofactor-containing...
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Tài liệu Báo cáo khoa học: "Learning to Find Translations and Transliterations on the Web" doc
... translations in another language. By retrieving and identifying such translation counterparts on the Web, we can cope with the OOV problem. Consider the technical term named-entity recognition. The ... Proceedings of the 50th Annual Meeting of the Association for Computational Linguistics, pages 130–134,Jeju, Republic of Korea, 8-14 July 2012.c2012 Association for Computational Linguistics ... to reflect the likelihood of the token being part of the translation. We describe how to train a CRF model for identifying translations in more details in Section 3. At run-time, the system...
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Tài liệu Báo cáo khoa học: "Parsing, Projecting & Prototypes: Repurposing Linguistic Data on the Web" doc
... ddoegave-3sg the teacher book to -the boy yesterday The teacher gave a book to the boy yesterday”(Bailyn, 2001) The canonical form of an IGT consists of three lines:a language line for the language ... allowing structural and “construc-tion” searches.23.1 IGT detection The canonical form of IGT, as presented in Section 2.1,consists of three parts and each part is on a single line.However, ... 2009).Running the new IGT detection on the original threethousand ODIN documents, the number of IGT in-stances increases from 41,581 to 189,244. We then ran the new language ID algorithm on the IGTs,...
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Báo cáo khoa học: "a Chat-oriented Dialogue System based on the Vector Space Model" ppt
... and Section 4 presents the main conclusions of this work. 372 The IRIS Implementation In this section we first provide a detailed descrip-tion of the IRIS architecture along with the most ... representations of full dialogues in the database. Such a dual search strategy allows for in-corporating information about the dialogue context into the response selection process. The rest of the ... applied to decide whether IRIS should ask the user for the meaning of such a term. 38If IRIS decides to ask for the meaning of the term, the control of the dialogue is passed to the vocabulary...
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Báo cáo khoa học: "Tools for Multilingual Grammar-Based Translation on the Web" docx
... developers of translation sys-tems on the one hand, and authors and translators—i.e. the users of the systems on the other.In the MOLTO project (Multilingual On- Line Trans-lation)3, we have the ... generation. But the gener-ation components were hard-coded in the program, in-stead of being defined declaratively as in GF, and theywere not usable in the direction of parsing.3 Grammars and OntologiesParallel ... all the agreement rules. The process is shown in Figure 3. The one-word change generating the new set of documentscan be performed by editing any of the three represen-tations: the tree, the...
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Báo cáo khoa học: "Extracting Paraphrases from Definition Sentences on the Web" pptx
... by the POS of their component morphemes.f13 The ratio of the number of unigrams (morphemes) that appear in the child context of both candidate phrases to the number of all of the childcontext ... represented by the pronunciation of their component morphemes.f11 A variation of f10 ; tree fragments are represented by the base form of their component morphemes.f12 A variation of f10 ; tree ... candidatephrase, to the number of all of the morphemes in the two phrases. Pronunciation is also useful for identifying orthographic variations.Pronunciation is given by KNP.f4 The ratio of the number of morphemes...
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Báo cáo "Effects of Zn content on the magnetic and magnetocaloric properties of Ni-Zn ferrites " pdf
... lattice constant and volume of unit cell increase with Zn content in the samples due to larger ionic radius of Zn2+ ion (0.82 Å) substituted for Ni2+ ion (0.78 Å). The X-ray density, the real ... interaction B-B - between ions in sublattice B and interaction A-B - between ions of sublattices A and B. We denote λaa, λbb, λab correspond to molecular-field constants of exchange interaction ... Exchange interactions between magnetic ions through oxygen ion are superexchange interaction with antiferromagnetic nature. These interactions depend on bond distance and bond length. Normally...
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Báo cáo y học: "Elevated plasma homocysteine is positively associated with age independent of C677T mutation of the methylenetetrahydrofolate reductase gene in selected Egyptian subjects"
... Figure 3. The effect of the T allele on the plasma homocysteine in the different studied groups. Bar chart illustrating the effect of the T allele on the level of homocysteine in the different ... transducer. The examination was done for the right and left common carotid arteries and the mean values of the two sites were used in the analysis. The transducer was positioned over the common carotid ... thickness of the carotid intima in the patient ultrasonography when compared with the control. Furthermore, there was a weak positive correlation between the CIT and the tHcy level, the correlation...
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