supported metal oxides and the surface density metric
SYNTHESIZE AND INVESTIGATE THE CATALYTIC ACTIVITY OF THREE-WAY CATALYSTS BASED ON MIXED METAL OXIDES FOR THE TREATMENT OF EXHAUST GASES FROM INTERNAL COMBUSTION ENGINE
... reactant molecules on the semi-conducting surface; the formation of these is a function of the electronic properties of the solid, and the structure and kind of bonds (6) The catalyst surface is markedly ... cycle begins with the adsorption of CO and O2 on the Nguyen The Tien 29 Synthesize and investigate the catalytic activity of three-way catalysts based on mixed metal oxides for the treatment of ... giving CO2 and regeneration of the catalyst in Eqs (6) and (7) If acidic and basic sites are present on the same metal oxide, then the reaction paths ways follow as below The Eq (8) indicates the presence...
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Electrospun metal oxides and carbon nanofiber based materials in the application of rechargeable lithium battery
... stoichiometric reaction, and E0 is the standard potential of the cell with the specific reaction The type of active materials contained in the cell determines the standard potential of the cell ... energy and power density This thesis will focus on the electrospun CNF and its nanocomposites and the main goal is to explore prospective anode materials As the morphological structures and electrochemical ... candidates to conduct electrochemical studies due to the time and energy given in a PhD pursuit 1.5 Thesis Outline This thesis consists of eight chapters Fig 1.3 shows the structure of the thesis...
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Đề tài " Projective structures with degenerate holonomy and the Bers density conjecture " potx
... partially supported by grants from the NSF and the Clay Mathematics Institute 78 K BROMBERG respectively Bers showed that X and Y parametrize the space QF(S) of all quasi-fuchsian structures In other ... Let A be the annulus c × [0, 1) and let AZ be a lift of A to the Z-cover MZ of M associated to c Now remove A from M and AZ from MZ and take the metric completion of both spaces Both of these spaces ... BROMBERG Theorem 4.2 The hyperbolic cone-manifold Mc is a quasi-fuchsian conemanifold with projective boundary Σ and Σc The lower half of Mc is isometric to the lower half of M and is therefore...
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gas - sensing properties of tin oxide doped with metal oxides and carbon
... (15 M) and refluxed for 12 h in a silicone oil bath maintained at 140 ◦ C to modify the MWCNTs surface, they were then rinsed with distilled H2 O until the pH of the solution was neutral, and finally ... the sensor response versus LPG concentration The particle size and morphology of the SnO2 thin film characterized further by TEM and FE-SEM are shown in Fig The TEM image (Fig 2a) shows that the ... bonds For example, the OH group on SnO2 may possibly react with the OH and COOH groups on the functionalized MWCNTs in removing the H2 O contained in the wet material, and thus the bonding C O Sn...
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Studies on metal oxides and cobalt nitride as prospective anodes for lithium ion batteries
... the Nasicon (Sodium super ion conductor), Na3Zr2Si2PO12 On the other hand, Na3V2P3O12 has the Nasicon structure, with 3Dchannels occupied by the Na- ions The theoretical capacity depends on the ... work done by others in the literature on Lithium Ion Batteries (LIBs) and electrode materials over the years, by referring them appropriately in the respective Chapters of the Thesis Due to vast ... their support and helping hand during my entire stay in Singapore I am indebted to my father (Mr Mahendra Chandra Das) and Mother (Mrs Ramamani Das) for their affection, encouragement and support...
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Metal mining and the environment
... pumped to flotation cells There most of the metallic grains stick to the surface of the bubbles and float off the top of the cells Filtering the bubbly mixture concentrates the metals This process ... copper, lead, and zinc vital and necessary The Metal Mining Cycle The geologic evolution of the Earth controls the quantity and the very uneven distribution of metal resources in the Earth’s crust ... separate from the other materials, they accumulate in the bot- typically has a dark color and wavy, irregular surface tom of the furnaces and are removed The other constituents, primarily iron and silica,...
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the role of morphology and crystallographic structure of metal oxides
... and the surface charge through the number of oxygen vacancies, and as a result, controls the initial surface band bending (eVs) of the metal oxide and the change of eVs at replacement of the ... that for ceramics and thick film sensors the grain size does not depend on the thickness; rather it is determined by the conditions of synthesis and the thermal treatment parameters The situation ... high density of electrons in the conduction band 2.4 The role of morphology and porosity of metal oxides 2.4.1 Grain networks, porosity, and the area of inter-grain contacts From an analysis of the...
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Reactions of pyridazine and some gaseous oxides on the GE(100) surface
... minimize the surface energy, the surface atoms reconstruct to eliminate the dangling bonds as much as possible Many models were proposed for the surface reconstruction of Si(100) and Ge(100) They ... dimer with the dimer bond totally parallel to the surface plane However, Tromp et al [17] and Hamers et al [18] observed both symmetric and asymmetric dimers The existence of asymmetric (buckled) ... oxide and other hydrogen carbon compounds The germanium was reported to stabilize the transition metal clusters in catalysis and enhance the selectivity during reactions [5–10] However, the reactivity...
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Density functional study of the oxygen reduction reaction on the graphene supported metal clusters
... i and the electron j; and RAB is the distance between the nucleus A and the nucleus B The first two terms in the above equations are the operators for the kinetic energy of the electrons and nuclei ... discontinues The position of these cusps is the position of the nuclei that present in the system The change in the gradient of the electron density also gives the information on the nuclear charge of the ... gives the contribution from the kinetic energy and the potential energies of the attraction between nuclei and the electrons The two last terms, ( ii | jj ) and ( ij | ji ), are the Coulomb and...
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Báo cáo y học: "HLA-DR regulation and the influence of GM-CSF on transcription, surface expression and shedding
... sections through the cell to observe surface and intracellular staining Figures 3a-d show the intracellular and surface staining of PBMC in a healthy control and from a septic patient These images ... of BPL for his his help and support, the staff of the ITU at the RLUHT in particular the research nurses, Neal Gratton and Andrea Fazakerley for recruiting patients into the study We would also ... Jurcevic for the kind gift of the purified HLA-DR, Drs B Flanagan and D Newton for their advice and technical assistance with the PCR assays and Western Blotting Conflict of interest The authors...
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Tài liệu Conditions of the surface water and ground water resources in the rural area of the Mekong Delta, Vietnam pptx
... following the Vietnamese standards for ground water TCVN 5944 –1995 (see table 3) The results of the analyses of the surface water samples were compared to the Vietnamese standards for the use of surface ... from the irrigation ditches of the rice fields At both study sites the values for the pH, BOD, NH4 and phosphate are conform to the requirements of the Vietnamese standards for the use of surface ... Outlook Regarding the ground water and the surface water quality the two study sites Hoa An and An Binh are typical for the conditions of the rural area of the Mekong Delta At present, there are substantial...
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Tài liệu Cancer Pain Management: A perspective from the British Pain Society, supported by the Association for Palliative Medicine and the Royal College of General Practitioners docx
... ablation of the thyroid gland 4.2.1.4 Chemotherapy and hormone therapy Sections 4.1.3 and 4.1.4 describe the palliative role of chemotherapy and hormone therapy This section draws attention to their ... of the neuro-mechanisms of pain, although these can only give insight into part of the overall complexity Nevertheless, they allow the development and trial of novel therapies Unfortunately, there ... ascending pathways are the spinothalamic and parabrachial neurones • The spinothalamic neurones connect the dorsal horn via the thalamus to the cortex These give intensity and the topographic location...
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Tài liệu Báo cáo khoa học: Unusual metal specificity and structure of the group I ribozyme fromChlamydomonas reinhardtii23S rRNA pptx
... positioned in the catalytic center [9,10] Owing to the complexity of the ribozyme reactions and the polyanionic nature of RNA, the catalytic chemistry and folding of group I ribozymes (and other large ... (rectangle) and a shortened Cr.LSU intron (line), which lacks the large P6 extension and the last three nucleotides (AU XG) of the intron The sizes of the intron (InDGb) and 5Â exon (5E) are indicated The ... > 25 lm GMP) and it decreases further at GMP < 20 lm These data extend the above result, and support the conclusion that Mn2+ affects mainly the correct folding of the ribozyme The FEBS Journal...
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Báo cáo khoa học: Caenorhabditis elegans metallothionein isoform specificity – metal binding abilities and the role of histidine in CeMT1 and CeMT2 potx
... the Cu–CeMT peptides In the case of Zn,Cu mixed -metal species, the theoretical molecular masses correspond to the homometallic Cux and Znx species, respectively, and the metal- to-protein stoichiometries ... of the spectrometric and spectropolarimetric features of the biosynthesized Cd(II)–MT forms, after the addition of the expected number of Cd(II) equivalents [i.e six Cd(II) equivalents for the ... evaluate the number of CeMT1 and CeMT2 histidines contributing to divalent metal ion coordination, the Zn and Cd preparations of both C elegans CeMT1 and CeMT2, and the Cd complexes of CtCeMT1 and...
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ADSORPTION OF pb AND cd ONTO METAL OXIDES
... extract Mn oxides and associated trace metals, the extraction reagent may also desorb trace metals from other surface components, such as Fe oxides Yet another possi- bility is that metals extracted ... oxidation in the bio®lm or if these oxides were formed in the water column and then deposited onto the bio®lm sur- faces The total organic material in the bio®lms exerted a chemical oxygen demand (COD) ... desorption and/ or readsorption of metals from other components By determining metal adsorption isotherms for composite surface coatings before and after extraction, the adsorptive role of the removed...
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Báo cáo Y học: Nuclear proteins that bind to metal response element a (MREa) in the Wilson disease gene promoter are Ku autoantigens and the Ku-80 subunit is necessary for basal transcription of the WD gene ppt
... staining, the bands were sliced out of the gel and subjected to automated amino acid sequencing Construction of the IR Ku-80 gene and the truncated Ku-80 (DKu80) For the double-stranded RNAi assay, the ... the MREs within the promoter region of the WD gene are indicated in Fig The four MREs are located in the proximal region of the WD gene promoter between )434 and +114, with MREa and MREe in the ... observed another band of 82 kDa when the MREa-protein band from the EMSA was excised from the native gel and resolved by SDS/PAGE (unpublished data) We purified the MREa-binding proteins using the avidin–biotin...
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Báo cáo Y học: The Fe-only nitrogenase and the Mo nitrogenase from Rhodobacter capsulatus A comparative study on the redox properties of the metal clusters present in the dinitrogenase components doc
... in the EPR tube They contained 24 mg Rc1Fe per mL and 0.6 mg Rc2Fe per mL in the case of the Fe nitrogenase and 28 mg Rc1Mo per mL and 0.7 mg Rc2Mo per mL in the case of the Mo nitrogenase The ... 2.27 and 2.06 and a very narrow rhombic signal at g ¼ 2.00, 1.98 and 1.96 A conclusive assignment of these novel EPR signals to either the cofactor or the P-cluster has proven elusive due to the ... attempted the direct experimental comparison of the MoFe and the FeFe protein We therefore isolated and prepared both proteins not only from the same organism (R capsulatus) but also under the same...
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Báo cáo khoa học: Using directed evolution to improve the solubility of the C-terminal domain of Escherichia coli aminopeptidase P Implications for metal binding and protein stability pptx
... close to the N-terminus of the fragment ) it lies between the start of the fragment and the predicted start of the domain (Fig 1) From the round mutants, three were selected for further characterization: ... coordinates both metals The G270V and E406G mutations are likely to be responsible for the inability of the AMPP#3-22 fragment to bind metals From these results, it appears that the solubility of the AMPP#4-3 ... folded before metals bind ) the metal- binding ligands must be appropriately placed to coordinate the incoming metals Four acid residues coordinate the two divalent metal ions in the active site...
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Báo cáo khoa học: Metal ions modulate the folding and stability of the tumor suppressor protein S100A2 docx
... in the other mutants Considering these aspects, the relevant comparisons will relate to differences observed on selective metallation, within the same mutant Interestingly, Ca2+ and Zn2+ metallation ... the shape of the denaturation curve Complementary to the CD experiments, the thermal denaturation of S100A2-DCys was followed by FT-IR The absorbance change at the amide I (1600– 1700 cm)1) and ... important contributor to the irreversibility of the thermal denaturation The denaturation curves of the above-mentioned structural elements are compatible with the CD results, and further corroborate...
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Tìm thêm: xác định các mục tiêu của chương trình khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn khảo sát chương trình đào tạo của các đơn vị đào tạo tại nhật bản khảo sát chương trình đào tạo gắn với các giáo trình cụ thể xác định thời lượng học về mặt lí thuyết và thực tế tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam khảo sát thực tế giảng dạy tiếng nhật không chuyên ngữ tại việt nam nội dung cụ thể cho từng kĩ năng ở từng cấp độ mở máy động cơ lồng sóc các đặc tính của động cơ điện không đồng bộ hệ số công suất cosp fi p2 đặc tuyến hiệu suất h fi p2 đặc tuyến mômen quay m fi p2 đặc tuyến tốc độ rôto n fi p2 động cơ điện không đồng bộ một pha sự cần thiết phải đầu tư xây dựng nhà máy thông tin liên lạc và các dịch vụ từ bảng 3 1 ta thấy ngoài hai thành phần chủ yếu và chiếm tỷ lệ cao nhất là tinh bột và cacbonhydrat trong hạt gạo tẻ còn chứa đường cellulose hemicellulose chỉ tiêu chất lượng theo chất lượng phẩm chất sản phẩm khô từ gạo của bộ y tế năm 2008 chỉ tiêu chất lượng 9 tr 25