Theoretical and experimental studies on the promoting effect of boron on cobalt catalyst used for fischer tropsch synthesis

... THEORETICAL AND EXPERIMENTAL STUDIES ON THE PROMOTING EFFECT OF BORON ON COBALT CATALYST USED FOR FISCHER- TROPSCH SYNTHESIS (FTS) TAN KONG FEI (B Eng & M Phil., University of Malaya, ... Armando Borgna, Mark Saeys, Effect of Boron Promotion on the Stability of Cobalt Fischer- Tropsch catalyst , Journal of Catalysis, 280 (2011), 50 XX CHAPTER INTRODUCTION Fischer- Tropsch Synthesis ... 2010) The objective of this thesis is therefore to first understand the mechanism responsible for the deactivation of Co catalyst under realistic FTS conditions The deactivation of Co catalysts...

Theoretical and experimental studies on nonlinear lumped element transmission lines for RF generation

... studied: a) nonlinear capacitive line (NLCL) where only the capacitive component is nonlinear; b) nonlinear inductive line (NLIL) where only the inductive component is nonlinear; and c) nonlinear ... rise time of the output pulse and only a handful reported having done simulations for RF generation These simulations for RF generation not include resistive losses and the authors not show how ... Parametric Studies on NLETL 31 ix LIST OF FIGURES Figure 1.1 RF generation in NLETL Figure 1.2 Dispersion and nonlinear effects in NLETL Figure 2.1 Circuit diagram of a nonlinear lumped element transmission...

Theoretical and experimental investigation on nanostructures

... will focus on the theoretical and experimental study of one-dimension nanostructures to control their physical properties and investigate their possible applications One-dimensional nanostructures, ... Electron densities of (a) the top valence band and (b) the bottom conduction band of ZZ-1 (6, 0); (c) the top valence band and (d) the bottom conduction band of ZZ-1 (9, 0); (e) the top valence band ... representation of the cross section of the barrier layer where the oxide formation zone and the oxide dissolution zone adjacent to the m/o interface and the e/o interface, respectively, and the ionic...

Báo cáo y học: "The protective effect of licofelone on experimental osteoarthritis is correlated with the downregulation of gene expression and protein synthesis of several major cartilage catabolic factors: MMP-13, cathepsin K and aggrecanase" docx

... reduce the development of experimental OA This study focuses on the in situ effect of licofelone on the gene expression and protein synthesis of the major collagenolytic enzymes (MMP-13 and cathepsin ... Treatment with licofelone at both concentrations reduced the levels of mRNA expression and protein synthesis of cathepsin K The effect was similar at both of the tested dosages for gene expression and ... Therefore, the downregulating effects of licofelone on the level of mRNA expression/ protein synthesis of 5-LOX could provide an explanation of how the drug can reduce the synthesis of MMP-13 and ADAMTS-4...

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Báo cáo y học: " The hyperbolic effect of density and strength of inter beta-cell coupling on islet bursting: a theoretical investigation" ppt

... starting from immediate layer adjacent to it, alternate between being an irregular hexagonal (IH, the six sides and internal angles are not all equal) layer, and a regular hexagonal (RH) layer ... function More sophisticated models and laboratory studies are needed The electrophysiology of islet and β-cell oscillation, and evaluation of islet architectural organization, are all experimentally ... release need to be included: the oscillation of glycolysis, ATP/ADP ratio, cAMP, and the other metabolic factors such as NADPH, glutamate, glutamine; the cytosolic calcium, and the exchange of calcium...

Experimental and numerical studies on the viscoelastic behavior of living cells

... Literature review 17 contribution of the cell membrane and spectrin network to the large deformation of red cells On the other hand, the continuum modeling approach treats the cell as a continuum material ... EXPERIMENTAL AND NUMERICAL STUDIES ON THE VISCOELASTIC BEHAVIOR OF LIVING CELLS ZHOU ENHUA (B.Eng., WUHEE & M.Eng., WHU) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF ... that the experimental methodology and theoretical model put forward in this thesis will contribute to a more accurate evaluation of the viscoelastic properties of cells and better understanding of...

Báo cáo khoa học: The oxidative effect of bacterial lipopolysaccharide on native and cross-linked human hemoglobin as a function of the structure of the lipopolysaccharide A comparison of the effects of smooth and rough lipopolysaccharide ppt

... presence of EDTA The rough S minnesota LPS increased the initial fast phase of the reaction, but decreased the rate of the slow phase of oxidation in the presence of EDTA A comparison of rough and smooth ... reported that the oxidation of the a chains of Hb A0 was 10 times faster than that of the beta chains and that the oxidation of the beta chains was not inﬂuenced by pH The biphasic reaction was shown ... rough and smooth S minnesota was solely due to a sharp increase in the initial rate (Fig 5) A comparison of the effects of the rough and smooth LPSs of E coli and S minnesota on the oxidation of...

Báo cáo khoa học: Studies on the regulatory properties of the pterin cofactor and dopamine bound at the active site of human phenylalanine hydroxylase pptx

... of phosphorylation rate seen at the concentration x of H4biopterin vo is the rate in the absence of H4biopterin and vmin is the rate at very high concentrations of H4biopterin The observed Hill ... H4biopterin, the oxidized cofactor H2biopterin and the catecholamine inhibitor dopamine From Fig 3A it is seen that on preincubation with saturating concentrations (Fig 3B) of the biopterin cofactors ... binding changes the position and orientation (relative to the catalytic iron) and the hydrogenbonding network of the bound H4biopterin Moreover, the substrate induced repositioning of the cofactor also...

Báo cáo khoa học: Structural and serological studies on a new 4-deoxy-D-arabino-hexosecontaining O-speciﬁc polysaccharide from the lipopolysaccharide of Citrobacter braakii PCM 1531 (serogroup O6) pptx

... Part of a two-dimensional 1H,13C HSQC spectrum of the O-speciﬁc polysaccharide (OPS) of Citrobacter braakii PCM 1531 One-dimensional 1H and 13C NMR spectra are displayed along the horizontal and ... immunodiﬀusion of anti (Citrobacter braakii PCM 1531) serum (A) and anti- (Citrobacter PCM 1487) serum (B) with lipopolysaccharide (LPS)-I (well 1) and LPS-II (well 2) of C braakii PCM 1531, and LPS of Citrobacter ... inhibition of passive haemagglutination, SDS/ PAGE and immunoblotting using O-antisera against C braakii PCM 1531 and PCM 1487 In double immunodiffusion (Fig 4), the LPS of C braakii PCM 1531 and PCM...

The Moderating Effect of Product Knowledge on the Learning and Organization of Product Information pptx

... permission of the copyright owner Further reproduction prohibited without permission Reproduced with permission of the copyright owner Further reproduction prohibited without permission Reproduced ... permission of the copyright owner Further reproduction prohibited without permission Reproduced with permission of the copyright owner Further reproduction prohibited without permission Reproduced ... permission of the copyright owner Further reproduction prohibited without permission Reproduced with permission of the copyright owner Further reproduction prohibited without permission Reproduced...

Báo cáo khoa học: "Morphometric and histopathological studies on the effects of some chromatographic fractions of Phyllanthus amarus and Euphorbia hirta on the male reproductive organs of rats" potx

...

Báo cáo khoa học: "Effect of edging and docking methods on volume and grade recoveries in the simulated production of flitches" pps

... flitch In the following extract, the term ’trimming’ is equivalent to docking ; and ’cutting-line combinations’ refers to the com- binations of edging and docking lines MATERIALS AND METHODS ... grade and volume yielded by each edging and trimming line combination; and 3) select the combination of edging and trimming lines that maximised lumber value " procedure was restricted to producing ... cutting lines Cutting line combinations were generated by varying the coordinates of each edging and trimming line between predetermined limits." These limits, by the authors’ own admission, involved...

Báo cáo khoa học: "The combined effect of erythropoietin and granulocyte macrophage colony stimulating factor on liver regeneration after major hepatectomy in rats" pot

... two factors [15,16] Aim of the present study is to compare the effect of the administration of EPO and GM-CSF alone or in combination on the acceleration of liver regeneration in rats after major ... their combination on liver regeneration following major hepatectomy Although the effect of EPO in this setting has already been reported, there are few data on the effect of GM-CSF In addition there ... the study of the effects of EPO on liver regeneration Our study demonstrates that EPO administration had a positive effect on liver regeneration process after 70% hepatectomy by augmenting nuclear...

Báo cáo khoa học: "The combination effect of sodium butyrate and 5-Aza-2''''-deoxycytidine on radiosensitivity in RKO colorectal cancer and MCF-7 breast cancer cell lines" pot

... Human colon cancer cell lines RKO (ATCC, USA), breast cancer cell line MCF-7 (KCLB, Korea), and normal colon cell line DDC-112 CoN (ATCC) were used RKO and MCF-7 cell lines were cultivated in Dulbecco's ... much information is known about the combined effects of HDAC inhibitors and demethylating agents In this experiment, human colon and breast cancer cell lines were used to determine the effects of ... methylated in the CCD-112 CoN cell lines (Table 3) XTT results after addition of sodium butyrate and 5-Aza2'-deoxycytidine In the MCF-7 cell line, 87% of the cells survived after radiation alone, 73%...

Báo cáo y học: "Figuring out what works: a need for more and better studies on the relationship between ICU organization and outcomes" potx

... includes the training and organization of intensivists With a virtual absence of information relating ICU training with ICU outcomes, many questions remain unanswered Is there an optimal duration of ... Keller A, Tarlov AR, Ware JE: Variations in resource utilization among medical specialties and systems of care: results from the Medical Outcomes Study JAMA 1992, 267:1624-1630 Garland A, Connors AF: ... perform, get funded, and get published The impediments to doing randomized controlled studies of organizational change in ICUs are commonly insurmountable This and other practical considerations...

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