studies using artificial capillaries and mathematical simulation
Studies of self assembled monolayers on highly oriented pyrolytic graphite using scanning tunneling microscopy and computational simulation 1
... nano-devices development, and biological process Works of thiols adsorbed on gold surfaces by Nuzzo and Allara [13, 15] in the early 1980s and trichlorosilanes on silicon oxide by Maoz and Sagiv [13, 16] ... conductivity, flatness, and inertness provide us a suitable environment for STM experiments Last but not least, the structure of the HOPG is well understood and relatively simple and any possible interactions ... SAMs and silane SAMs is primarily determined by the covalent bond strength between the adsorbates and substrates, the weak interactions which include hydrogen bonding, electrostatic forces and...
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Studies of self assembled monolayers on highly oriented pyrolytic graphite using scanning tunneling microscopy and computational simulation 2
... the diversity of STM and STM-based technological applications: STM can achieve lateral and vertical resolutions of 0.1nm and 0.01nm, respectively, i.e., individual atoms and molecules can be ... preparation are not required, and samples remain mostly free of damage With these advantages, STM is especially suitable for in-situ electrochemical studies, biological studies, and the evaluation of ... for potential energy and geometry optimization calculation of arbitrary molecular and periodic systems using classical mechanics It offers support for the COMPASS, UFF, and Dreiding forcefields...
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Studies of self assembled monolayers on highly oriented pyrolytic graphite using scanning tunneling microscopy and computational simulation 3
... applications such as the production and detection of sound, generation of high voltages, electronic frequency generation, microbalance, and ultra fine focusing of optical assemblies It is also ... and coupling parameters to model the scanners’ nonlinear characteristics By precisely determining the points along the scanner’s sensitivity curve, and through the application of a rigorous mathematical ... of sizes and angles The user then specifies the distance between known features on the reference’s surface and a parameter is recorded to compensate the scanner’s movements The X, Y and Z axes...
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Studies of self assembled monolayers on highly oriented pyrolytic graphite using scanning tunneling microscopy and computational simulation 4
... Proposed adsorption site and orientation of first adsorbed alkyl group on HOPG surface (top view): The dark lines on the left hand side and middle of the picture are step and adsorbate respectively ... enable us to verify the existence of interaction between the adsorbate and graphite surface 4.2 STM Results and Computational Simulations 4.2.1 Solution Preparation Three solutions of fatty acids ... surface (8nm×8nm, Vbias = 666mV, and Iset = 50pA) 4.2.4 STM images of 2:1 Binary Acids Solution It has been shown in section 4.2.2 and 4.2.3 that CH3(CH2)19COOH and CH3(CH2)22COOH can be differentiated...
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Studies of self assembled monolayers on highly oriented pyrolytic graphite using scanning tunneling microscopy and computational simulation 5
... there are two major sections A and B within the area scanned (60nm×60nm) The DDPER lamella has a 33° angle and 77° angle with horizontal direction within section A and B, respectively, as indicated ... can be carried out subsequently The distance between the oxygen and surface increased to 3.3nm and 3.5nm for Cluster A (DDPER/HOPG) and Cluster B (S170/HOPG) respectively after geometry optimization ... on HOPG (0 1) surface after Dynamics and Geometry Optimization using COMPASS forcefield 86 FORMATION OF SAMs CONRTOLLED BY STERIC EFFECTS Fig 5.13 Top view and side view of S170 on HOPG: Initial...
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Studies of self assembled monolayers on highly oriented pyrolytic graphite using scanning tunneling microscopy and computational simulation 6
... transformed from pg to p1 [32] Detailed studies showed that the appearances of HBB under STM are different for molecules on the left hand side and right hand side of the boundary (in black, Fig ... showed that the unit cell on the right hand side is rectangular with two sides at a=4.000.08nm and b=2.950.06nm On the contrary, the unit cell on the left hand side is rhombic with two sides at ... the HHB and graphite surface, although no covalent bonds were formed The resulting products or the physisorbed molecules were shown in and when graphite attacked HHB through route (L-HHB) and (R-HHB),...
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Studies of self assembled monolayers on highly oriented pyrolytic graphite using scanning tunneling microscopy and computational simulation 7
... left hand side As [SP] decreases equilibrium (7-3) will also shift to the left hand side, and cause the melting of the SAMs 7.5 Common properties of 3D crystals and 2D crystals 3D crystals and ... dipole-dipole interaction, and etc 7.4.4.1 Molecular Structures and Symmetry Linear organic molecules including saturated and unsaturated n-alkanes, n-alkyl acids, and n-alcohols exhibit good ... between the adsorbates and substrate; excellent conductivity, which allows us to study the monolayers using STM Unlike some metal and semiconductor surfaces, e.g gold and silicon, the sp2 carbons...
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Báo cáo khoa học: Malonyl-CoA decarboxylase (MCD) is differentially regulated in subcellular compartments by 5¢AMP-activated protein kinase (AMPK) Studies using H9c2 cells overexpressing MCD and AMPK by adenoviral gene transfer technique potx
... (Potter-Elvehjem, between 0.10 and 0.15 mm clearance), and homogenized by 10–15 up and down strokes while revolving at 500 r.p.m Homogenate was then transferred to a microfuge tube, and sucrose was added ... cytochrome C released into cytosol Western blot and SDS/PAGE for AMPK, MCD and mitochondrial markers To identify AMPK and MCD in the samples, SDS/PAGE and Western blot analysis was peformed Thirty ... USA) and counted in a liquid scintillation counter The radioactivity was converted to nanomoles of acetyl-CoA formed in the reaction using a standard curve generated from to 20 nM range of standard...
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Báo cáo vật lý: "SIMULTANEOUS SPECTROPHOTOMETRIC DETERMINATION OF Pb(II) AND Cd(II) USING ARTIFICIAL NEURAL NETWORKS" potx
... reagent grade and deionized water was used throughout the experiment Stock standard solution (1000 mg/l) of Pb(II) and Cd(II) was prepared by dissolving 1.1261 g of Pb(NO3)2 (Fluka AG) and 1.0271 ... obtain Pb(II) and Cd(II) concentrations over this respective determination ranges 1–15 mg/l for Pb(II) and 2–16 mg/l for Cd(II) Then 0.6 ml buffer solution (boric acid and borax (0.2 M)) and 1.5 ml ... concentration value of Pb(II) and Cd(II) Figure 1: Schematic representation of a three layer artificial neural network The network training and data treatment were realized by using MATLAB program11...
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Báo cáo y học: "A protocol for classifying normal- and flat-arched foot posture for research studies using clinical and radiographic measurements" pps
... index and normalised navicular height, we requested and were provided with raw foot posture measurements from Scott and colleagues [7] comprising data from 50 healthy young adults (26 female and ... clinical and radiographic measurements, data from the normal-arched, flat-arched and non-qualifying groups were pooled and Pearson r correlation coefficients were calculated For both the t-tests and ... to very good with left and right foot ICCs ranging from 0.68 to 0.78 and absolute random error ranging from 5.6 to 7.1° (Table 2) Anthropometric differences between normal and flatarched groups...
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High speed fir filter design and optimization using artificial intelligence techniques
... my life and thank my bothers, Cen Lei and Cen Weidong, my sister Cen Wei for their care, encouragement and love I also would like to thank my husband, Liu Ming for his encouragement and accompanying ... comparison between the filters designed by using GA and MGA - 132 Table A comparison among the filters with 2, 3, and subfilters designed by using GA and MGA - 138 Table A comparison ... pre-truncation and post-truncation- 66 Table List of the coefficients of filters with (a), (b) and (c), (d) and (e) subfilters - 67 - Table List of filter coefficients of Ha(z), HMa(z) and...
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Condition monitoring and fault diagnosis of induction machine using artificial intelligence methods and empirical mode decomposition
... Bearing and raceway wear and tear present initially as general roughness and progresses to metal fatigue, and ultimately spall and chip on the surface of the rolling elements [93] Figure 2.4 and ... diagnostic scheme, and the rationale for condition monitoring using MCSA and vibration analysis, and sets the stage for stating the objectives of this research Fault statistics and literature survey ... energy, magnetic energy, operational thermal stress and harsh environmental conditions e.g., humidity and chemical corrosion, causing wear and tear, and ultimately numerous types of fault may develop...
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Condition monitoring and fault diagnosis of induction machine using artificial intelligence methods and empirical mode decomposition
... Bearing and raceway wear and tear present initially as general roughness and progresses to metal fatigue, and ultimately spall and chip on the surface of the rolling elements [93] Figure 2.4 and ... diagnostic scheme, and the rationale for condition monitoring using MCSA and vibration analysis, and sets the stage for stating the objectives of this research Fault statistics and literature survey ... energy, magnetic energy, operational thermal stress and harsh environmental conditions e.g., humidity and chemical corrosion, causing wear and tear, and ultimately numerous types of fault may develop...
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Inverse modeling for the study of 2d doping profile of submicron transistor using process and device simulation
... preset values • Dn and Dp are the diffusivity of electrons and holes respectively • Nc and Nv are the effective density of states in the conduction and valence band respectively • Ec and Ev are the ... parameterization In the following graph and table, a standard inverse modeling exercise using pure device simulation described in [5] is performed on 0.13 micron NMOS using subthreshold Id-Vg at different ... physics and discusses the theory behind the process and device simulation Insight will be given on selection of appropriate models used in simulation Due to the large number of related and customizable...
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Modeling and simulation of a hybrid electric vehicle using MATLAB/Simulink and ADAMS
... understanding and support I would also like to express my thanks to my past and current supervisors at General Dynamics Land Systems Canada, Mr Phong Vo and Mr Zeljko Knezevic, for their advice and ... MATLAB/ADAMS simulation platform and ADVISOR will be presented Chapter will contain comparative analysis of hybrid and conventional vehicle simulation based on the ADAMS/MATLAB vehicle model City and ... highway standard drive cycles will be used to simulate the performance and the fuel efficiency of the hybrid and conventional vehicles Finally, Chapter will conclude the modeling and simulation...
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Báo cáo y học: " Rationale for one stage exchange of infected hip replacement using uncemented implants and antibiotic impregnated bone graft"
... prospective, randomised, controlled studies with a sufficient follow-up period, diagnosis and treatment of prosthetic joint infections is mainly based on tradition, personal experience and liability ... (SCV) of staphylococci and other pathogens may survive5 and even replicate6 intracellularily, in osteoblasts, endothelial cells and even in polymorphonuclear leukocytes and macrophages Such populations ... Orthop Scand 2000;71(1):80-4 31 Witso E, Persen L, Loseth K, Bergh K Adsorption and release of antibiotics from morselized cancellous bone In vitro studies of antibiotics Acta Orthop Scand 1999;70(3):298-304...
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1 UNFIRED BRICK USING FLY ASH AND RED MUD BASED ON GEOPOLYMER TECHNOLOGY
... that using ml alkaline activator/100g solid mixture is 120 kG/cm2 while compressive strength of specimens that using using 8, 9, 10 ml alkaline activator/100g solid mixture is 156, 158 and 158 ... Samples were prepared using red mud from Tan Binh Chemistry Factory and fly ash from Nhon Trach Dong Nai Power Station with ratio of red mud:fly ash was 20:80, 30:70, 40:60; 50:50 and 60:40 Fly ash ... soluble silicon and sodium hydroxide was added Mixing red mud in liquid form without drying with fly ash and alkaline activator at about 100oC Mixes were formed in cubic molds 50x50x50 mm and cured...
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Municipal solid waste disposal by using metallurgical technologies and equipments
... fixed bed The structure and permeability of fixed bed are of prime importance when apparatus’ configuration and process parameters are given Thus, experimental and simulation studies on pyrolysis ... content of SO3 and Cl in FA accounts for 12.10% and 12.31%, respectively And there are a lot of SiO2, CaO, and Al2O3 in slag which hold round 75% in total Table Chemical components of ash and slag ... respectively These technologies and equipments have function of both manufacturing steel products and absorbing bulks of wastes By using advanced metallurgical crafts and post-treating systems, this...
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A typical small-scale chlorine leak and dispersion simulation in industrial facilities
... the real accident scenarios, and the accuracy of the simulation can be further authenticated using measured data On the other hand, the chlorine dispersion range and impact from barriers on the ... model and computational fluid dynamics model [17] The empirical model is the most simplistic one Based on large-scale field experiments and wind tunnel test data, using certain simplifications and ... (including quality, momentum, and energy components, etc.) under various conditions Combining with the initial and boundary conditions and the support of the numerical theories and methods, a detailed...
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Exergoeconomic optimization and improvement of a cogeneration system modeled in a process simulator using direct search and evolutionary methods
... function OF is the same, and the process steam and process hot water demands are assumed constant Here, the larger problem OP11 is considered for both mathematical optimization and exergoeconomic improvement ... transfer, subscripts F and P indicate system fuel and system product, respectively, NK is the number of system components, and NP and NF are the numbers of system products and fuels, respectively ... employed in the mathematical optimization strategy and in Alternatives and of the exergoeconomic improvement approach One observes from Table that the three schemes are robust, and that the mathematical...
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