microstructural dependence of mechanical properties in bulk metallic glasses and their composites
Báo cáo vật lý: "Using of HPLC Analysis for Evaluation of Residual Monomer Content in Denture Base Material and Their Effect on Mechanical Properties" pptx
... comparison of 11 soft lining materials as a function of accelerated aging J Prosthetic Dentistry, 69, 114–119 Sanders, J.L, Levin, B & Reitz, P.V (1991) Comparison of the adaptation of acrylic resins ... trends to that of tensile strength, with a decrease in stiffness and increase in ductility after a period of immersion in distilled water After analyzing the results obtained in the present study, ... attributed to the differences in curing methods and the brands of resin The results indicated a small statistically significant difference in favor of the water bath cure but clinically there were no...
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Tài liệu Báo cáo Y học: Temperature dependence of thermodynamic properties for DNA/DNA and RNA/DNA duplex formation pdf
... mds, and mss are the intercepts and slopes of the lower and upper baselines of the melting curves, respectively; T is the temperature of interest in Kelvin, a is the molar fraction of strands in ... O-antigen point to hydrophobic interactions in the binding site J Biol Chem 267, 83718376 53 McPhail, D & Cooper, A (1997) Thermodynamics and kinetics of dissociation of ligand-induced dimers of vancomycin ... study of bulge loops in oligoribonucleotides Biochemistry 29, 278285 45 Evertsz, E.M., Rippe, K & Jovin, T.M (1994) Parallel-stranded duplex DNA containing blocks of trans purine-purine and purinepyrimidine...
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The Estimation of Mechanical Properties of Polymers from Molecular Structure ppt
... straight line using regression analysis The results of the fit are shown in Figure 10 The fit of the line to the data gives a standard deviation of 0.968 MPa and a correlation index of 0.976 It is interesting ... results of a linear regression analysis of the data in Table IX is shown in Figure The straight1 line fit to the data has a standard deviation of regression of 16 MPa and a correlation index of 0.982 ... applied in the x direction and it accounts for the change in volume during the deformation process Stress and strain can be introduced into the calculations as volume changes by using the following...
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Báo cáo hóa học: " Dynamics of mechanical waves in periodic graphene nanoribbon assemblies" doc
... but it is also used in a large variety of variational problems related to the dynamics and stability of engineering and mechanical structures [15,16] The equivalent mechanical properties for the ... computing the homogenised mechanical properties of the graphene, i.e the equivalent mechanical performance of the graphene seen as a continuum In this study, we will show that the thickness and ... 10-10 N · nm · rad-2 and kτ = 2.78 × 10-10N · nm-1 · rad-2 The equivalent mechanical properties of the C-C bond can be determined performing a nonlinear optimisation of (1) using a Marquardt algorithm...
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báo cáo hóa học:" Temperature Dependence of Photoelectrical Properties of Single Selenium Nanowires" doc
... 0.64, 0.49, and 0.07 at temperatures of 10, 200, and 300 K, respectively The power law dependence can be further analyzed by inspecting the variation of the density of free carriers (N) in the nanowire ... recombination centers At 300 K, the trap states are thermally activated and act as recombination centers under illumination, leading to the weak light intensity dependence of photocurrent In summary, ... sudden jump of current in Fig 2a The photo-generated electron–hole pairs upset the original carrier balance and will fill in the trap states The filling of the trap states leads to the decay of the...
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Báo cáo khoa học: "Pro/con clinical debate: Tracheostomy is ideal for withdrawal of mechanical ventilation in severe neurological impairment" ppsx
... optimal timing of tracheostomy in brain-injured patients Even in the non-neurosurgical critical care population, there is insufficient and conflicting evidence regarding whether the timing of tracheostomy ... brain injury coincide with the greatest incidence of intracranial hypertension; the appropriate timing for tracheostomy in these patients must be considered in view of the risk for severe intracranial ... duration of mechanical ventilation or extent of airway injury [21] This paucity of data should not lead us to make definitive recommendations based on an incomplete understanding of the problem Instead,...
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Báo cáo y học: " Nebulized heparin is associated with fewer days of mechanical ventilation in critically ill patients: a randomized controlled trial" potx
... defined by the administration of any of the following: dopamine, dobutamine, norepinephrine, or epinephrine Renal failure was defined as a serum creatinine of greater than 300 μmol/L or urine ... patients in the heparin group and 32% in the placebo group following enrollment Heparin for deep venous thrombosis prophylaxis was administered to 64% of patients in the heparin group and 48% in the ... placebo (24) and heparin (25), day placebo (21) and heparin (15), day placebo (19) and heparin (11), and day placebo (13) and heparin (7) Graphs represent mean ± standard error of the mean Dixon...
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Mechanical characterization of biopolymer and the effects of mechanical properties of extracellular matrix on cell behaviours
... and gene expression In order to gain a better understanding of the effects of microenvironment on cell behaviors and vice versa, interdisciplinary approaches involving the use of principles and ... distinct regimes In the strain-softening regime, redistribution of internal stresses through progressive slip and xviii breaking of the physical crosslinks in the network occurs With continuous increment ... increment in shear loading, engagement of previously inactive fibrils through stretching and straightening of fibrils led to strain-stiffening of the network Subsequent increase in shear loading to...
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Strength, plasticity, and fracture of bulk metallic glasses
... reports of either “strain-softening” or “strain-hardening” for BMGs, the second goal of this work is to study their true stress for continuous shear banding By properly taking the instant load-bearing ... area into consideration, our analyses reveal that the critical stress for continuous shear banding maintains invariant on and after yielding, suggesting neither “strain-softening” nor “strain-hardening” ... [48] and Schuh [49] updated this map in terms of bulk metallic glass instead of amorphous ribbons In this thesis, we only focus on the region of inhomogeneous deformation of bulk metallic glasses...
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Characterization of mechanical properties of tungsten nanowires
... (a) SEM image of 2µm long cantilevers with a width of 150 nm and thickness of 50 nm (b) Principle of mechanical properties testing [Nilsson et al., 2003] 20 Fig 2.2.6 Rope of single-wall nanotubes ... LIST OF TABLES vi LIST OF FIGURES vii LIST OF ABBREVIATIONS xi CHAPTER – INTRODUCTION 1.1 Properties of materials at nanoscales 1.2 Motivation 1.3 Objectives of the experiment 1.4 Outline of the ... Jaslyn, Mr Lin Soon Huat and others, for their timely assistance and inspiring discussions Finally, I would like to especially thank my wife Yanyu for her support and encouragement during this work...
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Improvement of mechanical properties of mesoporous ultra low k thin films after NH3 plasma treatment
... promoting porosity in the film Finally, sintering temperature varying from 350 to 600 蚓 i s requi red to obtain a stable film The cure process induces the final cross-linking of the polymer chains ... the mechanical properties of porous low-k thin film and find out the mechanism of the effect of plasma treatment on porous low-k thin film 1.5 Objective and Outlines There is certainly a trade-off ... Research and Engineering (IMRE) I would like to give my special thanks to Mr Wang Weide for training and help in plasma treatment, to Ms Shen Lu for her kind help in nano-indentation test and scanning...
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INVESTIGATION OF MEMBRANE PROPERTIES IN THE CENTRAL NERVOUS SYSTEM OF DROSOPHILA MELANOGASTER STUDIED BY FLUORESCENCE CORRELATION SPECTROSCOPY
... hydrolysis of ceramide to sphingosine Ceramide is the simplest form of sphingolipid and was shown to promote clustering of nanoscale domains in supported lipid bilayers [46] and in cells during death ... °C in ice After collecting 10 larval brains, they were washed times with 200 µl of sterile-filtered HL3 containing 10 µg/ml of insulin The brains were then incubated with 200 µl solution of 0.5 ... thought of as a homogenous sea of lipids with randomly arranged membrane proteins but are composed of fluctuating nanoscale assemblies of sphingolipids, cholesterol and specific proteins (
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Modeling and investigation of elastomeric properties in materials for additive manufacturing of mechanistic parts
... Figure 3.3: Principal dimensions of the living hinge L1 = length of the neutral axis of the living hinge L0= length of the outer lower fiber of the hinge R = hinge radius t = half of the hinge thickness ... Strain at failure : Material index : Material index L1 = length of the neutral axis of the living hinge L0= length of the outer lower fiber of the hinge R = hinge radius t = half of the hinge ... underlying physics of the movement of interlinking structures It starts with a study of different mechanistic properties required for interlinking structures classifying them into material and design-process...
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Báo cáo y học: "Multivariate explanatory model for sporadic carcinoma of the colon in Dukes’ stages I and IIa"
... observed in cases of stomach carcinoma, carcinoma of the gall bladder and/ or biliary tract, and hepatomas Up until now it has not been considered as a valid instrument of SCRC screening because of ... work in their respective facilities The investigators who collected at the hospital level (cases and controls) were specialists and training residents in internal medicine, neurology, allergy, and ... allergy, and clinical pharmacology, and also family doctors in training o recycling periods The objectives of the investigation were explained to all participating physicians and they were provided...
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Tài liệu Nutrition and Nutritional Care of Elderly People in Finnish Nursing Homes and Hospitals pptx
... Department of Applied Chemistry and Microbiology (Nutrition) University of Helsinki, Finland Department of General Practice and Primary Health Care University of Helsinki, Finland Nutrition and Nutritional ... is increasing in numbers most rapidly (Statistics Finland) Biological aging and disablement processes occur continuously and varies between individuals Many factors affect individual aging and ... and who lived in institutions in Finland was studied in 1999 using the MNA More than one four of those elderly individuals suffered from malnutrition and a further one in two were at risk (Rintala,...
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Tài liệu Pathophysiology and Clinical Aspects of Venous Thromboembolism in Neonates, Renal Disease and Cancer Patients Edited by Mohammed A. Abdelaal ppt
... Role of B vitamins and enzymes B vitamins function as coenzymes in the synthesis of purines and thymidylate during normal DNA synthesis Diminished levels of these vitamins may result in misincorporation ... (1) A point mutation in the coding region for the 5,10-MTHFR binding site (C677T), leading to the substitution of an alanine to a valine effectively increases homocysteine levels increase and decreases ... homocysteinemia-induced increase of the VTE and cardiovascular disease complications Homocysteine metabolism 2.1 Plasma homocysteine As mentioned in the introduction homocysteine is a sulfur–containing...
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Báo cáo Y học: Properties of group I allergens from grass pollen and their relation to cathepsin B, a member of the C1 family of cysteine proteinases pdf
... size of about 33 kDa The identity of the respective N-termini was determined by N-terminal sequencing, resulting in the sequence Y-I-P-K-V, confirming the correct processing of the yeast (a-mating ... rPhl p Q during expression and purification, and rPhl p N-containing supernatant Fig Comparison of the expression and enzymatic activity of recombinant Phl p N and Q Sizes in kDa are indicated (A) ... demonstrating lack of a C-terminal peptide activity [18] Even preincubation of the supernatant containing truncated rPhl p N with 0.5% SDS, which strongly interferes with protein–protein interactions and...
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The impacts of introductions and stocking of exotic species in the Mekong Basin and policies for their control
... Impacts of Introductions and Stocking of Exotic Species in the Mekong Basin and Policies for Their Control The Impacts of Introductions and Stocking of Exotic Species in the Mekong Basin and Policies ... Impacts of Introductions and Stocking of Exotic Species in the Mekong Basin and Policies for Their Control ix The Impacts of Introductions and Stocking of Exotic Species in the Mekong Basin and Policies ... Impacts of Introductions and Stocking of Exotic Species in the Mekong Basin and Policies for Their Control xvi The Impacts of Introductions and Stocking of Exotic Species in the Mekong Basin and...
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Báo cáo khoa học: Essential roles of lipoyl domains in the activated function and control of pyruvate dehydrogenase kinases and phosphatase isoform 1 pot
... phosphorylation and dephosphorylation, a processing unit Fig E2 and E3BP domains and their binding interactions E2 subunit domains: L1, N-terminal lipoyl domain; L2, inner lipoyl domain; B, E1 binding domain; ... connections indicate binding interactions to the catalytic components (E1 and E3), kinase isoforms (PDK1, PDK2, PDK3, PDK4) and Ca2+-binding of PDP1 in translating and transmitting effector signals, and ... oligomer-forming, acetyl-transferase-catalyzing inner domain E3BP domains: L3, N-terminal lipoyl domain; B, E3 binding domain; I, inner domain which associates with the inner domain of E2 Dotted...
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