... However, these coculture systems, both native and engineered, perform usually at low concentration of the mixed sugars (
Ngày tải lên: 09/09/2015, 11:09
... Coefficients 86 5.2.3 Resistance in Series Model 88 5.2.4 Estimation of Mass Transfer Coefficients 90 5.3 Model Equations 92 5.4 Results & Discussion ... 5.4.1 Parameter Estimation 93 5.4.2 Model Validation and Analysis 95 5.4.3 Parameter Sensitivity Analysis 100 5.4.4 Model Simulations 101 5.5 Conclusions ... rates and biomass yields were comparable to those observed in single-phase biodegradation systems A kinetics model was developed to elucidate the mass transfer mechanism and phenol metabolism in...
Ngày tải lên: 30/09/2015, 06:22
Symbiotic hollow fiber membrane photobioreactor for microalgal growth and activated sludge waste water treatment
... photobioreactor system examined here, to the best of the author’s knowledge, is the first design wherein microalgae and bacteria are separately cultured but still supporting each other in a closed system ... photobioreactors 2.1.1(a) Open ponds Algae cultivation in open ponds systems has been used since the 1950s The most commonly used system is raceway pond which is typically made of concrete and the ... for further technological improvement to the open systems 2.1.1(b) Photobioreactors To overcome the major problems associated with open culture systems, much attention has been paid to the development...
Ngày tải lên: 09/09/2015, 11:31
Hollow fiber membrane design for membrane distillation (MD) and MD based hybrid processes
... 60 4.3.1Membrane characterizations 60 4.3.2 DCMD performance 69 4.3.3 Modeling of mass transfer in DCMD 70 4.3.4 Energy efficiency 76 4.3.5 Long-term ... Lastly, the concept of polyelectrolyte-promoted forward osmosis–membrane distillation (FOMD) hybrid system is also developed and applied to recycle the wastewater containing an acid dye By integrating ... flows of FD-MD hybrid process 184 Figure 8.1 Schematic diagram of the lab-scale FO-MD hybrid system 197 Figure 8.2 Effects of temperature and concentration on the relative viscosity of PAA-Na...
Ngày tải lên: 10/09/2015, 09:08
Fabrication of nanofiltration hollow fiber membranes for sustainable pharmaceutical manufacture
... diagram of a hollow fiber spinning line 19 Figure 2.2 Schematic diagram of the nanofiltration system 23 Figure 2.3 Morphology of Torlon® PAI NF hollow fiber membranes 25 Figure 2.4 Effects ... different take-up speeds (a) phase image, (b) 3D image 29 Figure 2.9 Phase diagram for a ternary system and the coagulation path during the precipitation of a Torlon PAI hollow fiber at a constant ... Phase diagrams for (a) CA/NMP+nonsolvent/Mg(ClO4)2/Water; (b) Torlon® 4000TF/NMP+nonsolvent/Water system 58 Figure 4.5 Cross section images of the dual-layer hollow fiber membranes 60 Figure...
Ngày tải lên: 12/09/2015, 11:29
Fundamentals of hollow fiber formation for gas separation
... take-up speed for different polymer concentrations: (a) PSf/NMP system (air gap = cm); (b) P84/NMP system (air gap = cm); (c) CA/NMP system (air gap = 2.5 cm) …………………… ………………… 81 Fig 4.3 The number ... take-up speed for different polymer concentrations: (a) PSf/NMP system (air gap = cm); (b) P84/NMP system (air gap = cm); (c) CA/NMP system (air gap = 2.5 cm)……………………….………….82 Fig 4.4 The percentage ... take-up speed for different polymer concentrations: (a) PSf/NMP system (air gap = cm); (b) P84/NMP system (air gap = cm); (c) CA/NMP system (air gap = 2.5 cm)…………………… 82 Fig 4.5 Effect of take-up...
Ngày tải lên: 14/09/2015, 08:46
Development of novel chitosan based hollow fiber membranes for applications in water treatment and bioengineering
... adsorption isotherm data and model fitting to experimental results (t= 23°C, pH=5, C =10-120mg/l) Blend I : Langmuir model q max =16.32 mg/g K s =3.23 mg/l Freundlich model n=6.23 P=8.23 (logq e ... adsorption isotherm models to the experimental results for CS6EG20 blend hollow fiber (t = 23 °C, pH 5, C = 10–200 mg/L) Langmuir model: C e /q e = 6.3/34.8 + (1/34.8)C e Freundlich model: log q e ... P=8.23 (logq e =0.1604logC e +0.9159) Blend II: Langmuir model q max =28.82 mg/g K s =2.68 mg/l (C e /q e =0.0347C e +0.093 ) Freundlich model n=5.61 P=13.94 (logq e =0.1782logC e +1.1444) Figure...
Ngày tải lên: 14/09/2015, 08:49
Development of chitosan based blend hollow fiber membranes for adsorptive separation in environmental engineering and bioengineering applications
... isotherm models 76 x Figure 3.8 Isotherm adsorption data of BSA on CS/CA blend hollow fiber membranes 1-26-OH and data fitting with the Langmuir and Freundlich isotherm models ... membranes with Langmuir isotherm model .123 Figure 5.4 Correlating copper ion adsorption on the 3-12-OH CS/CA blend hollow fiber membranes with Freundlich isotherm model 124 Figure 5.5 ... adsorption on the CS/CA-Cu blend hollow fiber membranes with the Langmuir isotherm model (a) and the Freundlich isotherm model (b) 148 Figure 6.3 Effect of solution pH on BSA binding amounts...
Ngày tải lên: 14/09/2015, 11:42
Dual layer hollow fiber membrane development for forward osmosis and osmosis power generation
... was about 0.2 m/s) Two regulators in the bypass piping system were used to stabilise the system pressure The pressure fluctuation of the system was minimised with this type of PRO setup during ... tensile strength of hollow fiber and flat sheet membranes was tested by an 20 Instron tension meter (model 5542, Instron Corporation) The membrane sample was clamped at both ends and pulled in tension ... with this type of PRO setup during operation In order to minimise the temperature effect on the system, a cooling circulator was installed to maintain the DS temperature at approximately 26±0.5°C...
Ngày tải lên: 04/10/2015, 17:06
The development of pervaporation hollow fiber membranes for isopropanol dehydration
... make it difficult to present a comprehensive model to depict the transport process Two major models, namely, solution-diffusion model and pore flow model, have been developed to illustrate transport ... Diffusion Feed liquid Permeate vapor Figure 2.1 Schematic diagram of solution-diffusion model The solution-diffusion model is applicable to non-porous polymeric membranes in which the transport of permeating ... Based on the solution-diffusion model, the permeability coefficient P is given by the product of diffusivity D and solubility S: P=D S (2.1) For a binary pervaporation system consisting of components...
Ngày tải lên: 16/10/2015, 15:38
Báo cáo khoa học: Critical role of the plasma membrane for expression of mammalian mitochondrial side chain cleavage activity in yeast pptx
... microdomain The aim of this study was to determine whether recombinant yeast can be used as a model system to decipher the SCC reaction and its potential regulation during steroidogenesis To so, ... Observations were made with a confocal microscope (model MRC-1000; Bio-Rad House, Hertfordshire, England; 1-lm optical serial sections) attached to a camera (model Optiphot; Nikon Inc.) equipped with ... The recombinant SCC system in yeast is sensitive to the levels of expression of these components, similar to that found for mammalian adrenal cells [14] or for in vitro assay systems [55] In yeast,...
Ngày tải lên: 08/03/2014, 08:20
Dual layer asymmetric hollow fiber membranes for gas separation
... mixing for a binary solvent-polymer system at temperature T1 & T2 (T1>T2) Figure 2-5 34 Schematic temperature-composition phase diagram for a binary polymer-solvent system Figure 2-6 29 36 Illustration ... affecting both the permeance and selectivity Based on the resistance model, the first large-scale membrane gas separation system, Prism®, was successfully installed by the Monsanto Co in 1977 ... saturated by C3+ hydrocarbons They must be removed before delivered to the pipeline network A rubbery membrane system could be used to replace traditional refrigeration plant to remove NGL Different...
Ngày tải lên: 16/09/2015, 17:11
Extractant impregnated hollow fiber membranes for phenol recovery from wastewater
... performance A mathematical model for the system has been developed to determine the mass transfer coefficients Furthermore, the developed model has been used to predict the system behavior under varying ... on the system performance In addition, development of a mathematical model would help in predicting the behavior of the system under changing operating conditions which is paramount for system ... Extraction System 2.1.1 2.2 Dispersive Solid-Liquid Extraction System 11 2.2.1 2.3 Advantages and Disadvantages Advantages and Disadvantages 16 Non-Dispersive Extraction System...
Ngày tải lên: 30/09/2015, 10:12
Cell based screening assay for inhibitors of porcine circovirus type2 (PCV2) replication
... 1.2. PCV2‐Associated Diseases (PCVAD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 1.2.1. Postweaning Multisystemic Wasting Syndrome (PMWS) . . . . . . . . . . . . . . . . . . . 17 1.2.2. PDNS and other PCVAD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 ... 1.3.1. Cell‐based and Cell‐free Assays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 1.3.2. Signal Detection Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 ... Paraformaldehyde PK15 Porcine Kidney‐15 PK15‐C1 Porcine Kidney‐15, Clone C1 PMWS Postweaning Multisystemic Wasting Syndrome POC Proof of Concept pPirH2 Porcine p53‐induced RING‐H2 PPV ...
Ngày tải lên: 03/10/2015, 11:36
Cell based screening assay for inhibitors of porcine circovirus type2 (PCV2) replication 2
... against post‐weaning multisystemic wasting syndrome (PMWS) by porcine circovirus type 2 (PCV2) proteins. Vaccine 21, 4565‐4575. Chae, C. (2004). Postweaning multisystemic wasting syndrome: a review of aetiology, diagnosis ... (Allan et al., 1998; Liu et al., 2005; Meng et al., 2010). Fluorescence detection system was adopted over colorimetric detection because of the inherent sensitivity of ... F., Meehan, B., et al. (1998). Isolation of circovirus from lesions of pigs with postweaning multisystemic wasting syndrome. Can Vet J 39. Faurez, F., Dory, D., Grasland, B., and Jestin, ...
Ngày tải lên: 13/10/2015, 16:41
Tài liệu Báo cáo khoa học: Simplified yet highly accurate enzyme kinetics for cases of low substrate concentrations ppt
... kinetic model in Eqn (11) (solid line), the QSSA-reduced model (Eqn 14) (dotted line) and the ZDP1-reduced model (Eqn 21) (dashed line); the initial condition used was s(0) ẳ for the latter two systems ... complex models arising in meteorology [28], computational physics [29,30] and more general multiscale systems [31,32], but not yet in the current biochemical context We apply the ZDP to two systems: ... describes the dynamics of the system at the slow timescale General multiscale systems Here, we generalize the notions introduced above to more general multiscale systems In what follows, we use...
Ngày tải lên: 18/02/2014, 06:20
Tài liệu Báo cáo khoa học: "An Ensemble Method for Selection of High Quality Parses" pdf
... parsing models, the Collins (1999) generative model number and the Charniak and Johnson (2005) reranking model For the first we used a reimplementation (?) We performed experiments with each model ... k = 100 93 90 55 80 50 75 45 70 40 65 10 15 Number of models − N 35 20 Figure 2: The effect of the number of models N on SEPA (Collins’ model) The scenario is in-domain, sample size S = 33, 000 ... methods use Collins’ model SEPA uses N = 20, S = 33, 000, T = 100 ative model WOODWARD, the only previously suggested algorithm for this problem, was tested with Collins’ generative model only Furthermore,...
Ngày tải lên: 20/02/2014, 12:20
The Economic Impacts for Ireland of High Oil and Gas Prices doc
... purchase their required number of emission credits under an auctioning system 23 Such analysis requires detailed energy system modelling A useful illustration of the broad scope of tools that could ... all island basis • Extension of 400 kV and 220 kV network to facilitate transmission from key renewable locations • Implementation of “smart systems” to manage future load-to-generation matching ... improve security of supply significant transmission network development and capital investment are required The ability of the transmission network to absorb large amounts of electricity produced...
Ngày tải lên: 08/03/2014, 06:20