carotenoid mediated energy transfer in light harvesting and core complexes excited states and ultrafast dynamics
Báo cáo hóa học: " Efficient manganese luminescence induced by Ce3+-Mn2+ energy transfer in rare earth fluoride and phosphate nanocrystals" docx
Ngày tải lên :
21/06/2014, 05:20
... Ce3+-Mn2+ energy transfer offers an efficient route for obtaining Mn2+ RT luminescence in nanomaterials Similarly, the Ce3+ -Mn2+ energy transfer process in the CePO4:10%Mn NCs triggers an orange luminescence ... efficiency and energy transfer efficiency The Mn2+ luminescence quantum efficiency (hQE) was determined by comparing the Mn2+ emission intensity of the CeF :Mn aqueous solution with a solution of quinine ... of Mn in CePO4:Mn NCs Figure Investigated hQE and hET Mn2+ luminescence quantum efficiency (hQE) and Ce3+-Mn2+ energy transfer efficiency (hET) vs molar percent of Mn2+ in CeF3:Mn (a) and CePO4:Mn...
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BENCHMARKING ENERGY USE IN CANADIAN PULP AND PAPER MILLS doc
Ngày tải lên :
09/03/2014, 00:20
... Heat recovery: Primary refiners only, Mainline refiners only, Mainline and reject refiners, None Recycled Pulping Area • Recycled fibre used for newsprint, printing and writing paper, tissue, market ... Calendering: On-line, Off-line, None • Coating: On-line, Off-line, None Printing and Writing Papers Kraft Papers Tissue and Specialty Papers Building Paper Board Machines • Wet end: Cylinder former, ... benchmarking survey of energy use in Canadian pulp and paper operations In “Methodology,” the benchmarking method is explained Energy use in pulp and paper mills was analysed by examining energy...
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Báo cáo khoa học: J1–Photosynthetic Light Harvesting and Reaction Center Complexes ppt
Ngày tải lên :
23/03/2014, 15:20
... many different proteins in the process of turning sunlight into useful chemical energy In marine systems, protein pigments harvest solar energy photons and transfer excited state energy to the reaction ... thaliana glycine-rich RNA-binding protein) transcript encoding a protein with an N-terminal RNA-binding domain and a glycine-rich C-terminus undergoes circadian oscillations, peaking at the end ... certain proteinogenic amino acids (l-lysine, l-arginine, l-glutamine and l-asparagine) on physiological pH by 13C-NMR and HPLC measurements We also detected that thiol group containing reducing...
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Mass Transfer in Multiphase Systems and its Applications Part 1 pot
Ngày tải lên :
20/06/2014, 06:20
... kinetics 19 19 Mass and Heat Transfer During Two-Phase Flow in Porous Media - Theory and Modeling Mass and Heat Transfer During Two-Phase Flow in Porous Media - Theory and Modeling T l from interfacial ... picture of interphase mass transfer x x Mass and Heat Transfer During Two-Phase Flow in Porous Media - Theory and Modeling Mass and Heat Transfer During Two-Phase Flow in Porous Media - Theory and Modeling ... by Eqs (1) and (2) Mass and Heat Transfer During Two-Phase Flow in Porous Media - Theory and Modeling Mass and Heat Transfer During Two-Phase Flow in Porous Media - Theory and Modeling 11 11...
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Mass Transfer in Multiphase Systems and its Applications Part 2 docx
Ngày tải lên :
20/06/2014, 06:20
... residual stress and cracking in cementitious composites: the in uence of internal and external restraint Proceedings of 4th International Research Seminar Self-Desiccation and Its Importance in Concrete ... 1989; Murthy & Singh, 1997) in studies of non-Darcy convective heat transfer in porous media Invoking the Boussinesq approximations, and defining the velocity components u and v in terms of stream ... Single- and Multi-Phase Flow in in Porous Media Solute TransportWith Chemical Reaction in in Singleand Multi-Phase Flow Porous Media 31 Fig Physical model and coordinate system Momentum: u Energy: ...
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Mass Transfer in Multiphase Systems and its Applications Part 3 potx
Ngày tải lên :
20/06/2014, 06:20
... size can, during their movement in the system, collide and interact with the gas–liquid interface and, in consequence, the gas bubbles break into smaller ones causing an increase in interfacial ... semitransparent mirror coating (Fig 10) The cell was encased in a metal frame and formed a working cell of the interferometer adjusted to a band of the infinite width The insert placed in the gap had a ... estimate the intensity of its variation using the rate of change of the interference bands at the selected points (e.g in drop center) and also to define the characteristic times of the main stages...
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Mass Transfer in Multiphase Systems and its Applications Part 4 pot
Ngày tải lên :
20/06/2014, 06:20
... Approach in the Modeling of Flotation Flotation Transfer Transfer in Gas-Liquid Contacting Modeling of and Massand Mass in Gas-Liquid Contacting Systems Systems 139 139 Generally speaking, this kind ... Local Approach in the Modeling of Flotation Flotation Transfer Transfer in Gas-Liquid Contacting Modeling of and Massand Mass in Gas-Liquid Contacting Systems Systems 141 141 In reference to ... Approach in the Toward a Multiphase Local Approach in the Modeling of Flotation Flotation Transfer Transfer in Gas-Liquid Contacting Modeling of and Massand Mass in Gas-Liquid Contacting Systems...
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Mass Transfer in Multiphase Systems and its Applications Part 5 pot
Ngày tải lên :
20/06/2014, 06:20
... of inclination, inlet gas mass fraction, airflow Reynolds number and inlet temperature are examined It was found that an increase in the angle of inclination results in thinner and faster moving ... mass transfer coefficient in a bend a – (1) Internal generating line, ϕ = 45° ; (2) middle generating line, ϕ = 80° ; (3) external generating line, ϕ = 80° ; b – (1) Internal generating line, ... Successive and versatile investigation of heat and mass transfer in two-phase flows is caused by their wide application in power engineering, cryogenics, chemical engineering, and aerospace industry,...
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Mass Transfer in Multiphase Systems and its Applications Part 6 pdf
Ngày tải lên :
20/06/2014, 06:20
... concentration in the raffinate (x) and in the extract respectively (y) in the flow entering (1) or exiting (2) the column xe , ye are the solute concentrations in raffinate and in the extract ... asymmetrically wetted inclined channel for T0= 40°C and φ0= 45.5% (GrT= -1.64 105 and GrM= -104) and different inclination angles (Oulaid et al., 2010d) Laminar Mixed Convection Heat and Mass Transfer with ... performed in another installation including a glass column with the internal diameter of cm and an active height of 70 cm The handicraft packing was made of corrugated metal gauze and had the following...
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Mass Transfer in Multiphase Systems and its Applications Part 7 pot
Ngày tải lên :
20/06/2014, 06:20
... Mass Transfer in Steelmaking Operations Roberto Parreiras Tavares Federal University of Minas Gerais Brazil Introduction The productivity of steelmaking processes, including production and refining ... transfer can occur, depending on the phases involved, liquid-liquid mass transfer, in the case of reactions involving liquid steel and slag; liquid-gas mass transfer, when a gas is injected into ... 2010) This results in grain-boundary sliding and may bring about rotational modes of deformation In this case, triple grain junctions (disclinations) and non-equilibrium grain boundaries act as...
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Mass Transfer in Multiphase Systems and its Applications Part 8 doc
Ngày tải lên :
20/06/2014, 06:20
... divided into dynamic and static liquid-liquid contact devices, as shown in Fig 21 and 22 respectively As shown in Fig 21, the heavier and the lighter liquids are introduced at the inlet A and B, and ... also be applied into semiconductor drying, artificial rainfall, and mass transfer enhancement for engineering and scientific technology Since the effective area can be increased by interfacial disturbance, ... to take into account the internal transfer resistance during the second and third drying periods It is sufficient to combine both the internal and external resistances, expressing the drying rate...
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Mass Transfer in Multiphase Systems and its Applications Part 9 ppt
Ngày tải lên :
20/06/2014, 06:20
... growing alumina scale This was done by oxidizing alumina-forming alloys in a 16O2 atmosphere, further oxidizing them in 18O2 and then determining the 18O distribution in the alumina scale using SIMS ... Journal of Pulp and Paper Science, 15, 4, J135-141 Lindsay, J.D (1991) Advances in the numerical modeling of impulse drying, In: Tappi Engineering and Management in the Pulp and Paper Industry, M ... constant and intermittent batch drying of grains in a novel rotating jet spouted bed In mathematical modeling and numerical technique in drying technology Ed By I Turner & A.S Mujumdar Dekker, Inc...
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Mass Transfer in Multiphase Systems and its Applications Part 10 ppt
Ngày tải lên :
20/06/2014, 06:20
... according to PO2 along line A in Fig.5 and then held for 10 and 600 min, respectively Line (c) in Fig is when the temperature was increased to 1323 K according to PO2 along line B in Fig and then ... for aluminum increases for both undoped and lutetia-doped alumina Increasing the doping level to 0.2 mol% lutetia causes an approximately three times reduction in Dgbδ , while maintaining the ... temperature was increased to 1323 K according to the PO2 along line (A) in Fig and then held at 1323 K for 10 and 600 min, respectively Line (c) in Fig is when the temperature was increased up to...
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Mass Transfer in Multiphase Systems and its Applications Part 11 pptx
Ngày tải lên :
20/06/2014, 06:20
... viscosity and the residence time of bubbles The existing theories throw little light on problems of mass transfer in bubble wakes and are only helpful in understanding internal circulation within the ... (1990) Bubble Wake Dynamics in Liquids and Liquid−Solid Suspensions, Butterworth−Heinemann Series in Chemical Engineering, Stoneham, U.S.A 428 Mass Transfer in Multiphase Systems and its Applications ... energy- dissipating eddies a wide spectrum of intermediate eddies exist which contain and dissipate little of the total energy The large eddies transfer energy to smaller eddies in all directions and the...
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Mass Transfer in Multiphase Systems and its Applications Part 12 doc
Ngày tải lên :
20/06/2014, 06:20
... Sunflower Sunflower B carinata B carinata B carinata B carinata B carinata B carinata B carinata B carinata B carinata B carinata B carinata B carinata B carinata B carinata B carinata Sunflower Sunflower ... oil and energy input by intensification of mass transfer and heat transfer and in situ product separation, thus achieving continuous product in a scalable unit (Qui et al., 2010) 444 Mass Transfer ... constraints) (Frascari et al., 2008) In the case of increasing ultrasound intensity, the observed mass transfer and kinetic rate enhancements are due to the increase in interfacial area and activity...
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Mass Transfer in Multiphase Systems and its Applications Part 13 ppt
Ngày tải lên :
20/06/2014, 06:20
... recently following an increasing domestic energy demand and a soaring global oil price Accordingly, numbers of leading and national oil companies have been gathering in the Gulf for an interest of ... in the gas phase, up to~1400oC mainly in the forms of Pb2O(g) and PbO(g) Change of gas medium properties (in reducing medium) gaseous Pb appears beginning from ~800oC, and by ~1200oC it remains ... 8b and 8c, they are practically the same Fig Main substances, containing Zn and Pb a) in oxidizing gas medium with oxygen excess, b) in reducing gas medium, where the most part of carbon is in...
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Mass Transfer in Multiphase Systems and its Applications Part 14 pptx
Ngày tải lên :
20/06/2014, 06:20
... mixing and high heat and mass transfer rate It has been widely used at a commercial scale for drying of grains such as in pharmaceutical, fertilizers and food industries When applied to drying ... design of a bubbling fluidized bed dryer requires an understanding of the combined complexity in hydrodynamics and the mass transfer mechanism On the other hand, reliable mass transfer coefficient ... bubbling fluidized bed dryer as will be discussed later (a) fast rising bubble (b) slow rising bubble Fig Proposed gas streamlines in and out of a single rising bubble as described in Mass transfer...
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Mass Transfer in Multiphase Systems and its Applications Part 15 doc
Ngày tải lên :
20/06/2014, 06:20
... modeling and simulation of hydriding/dehydriding process in the MH reactor started early In 1980s, a simple 1-D mathematical model considering heat conduction and reaction kinetics was popular in ... defined at the nodes and could be specified easily, see Table Obviously, in the region of tube wall, the governing equations including flow, heat transfer and reaction kinetics degenerate into ... work available in the literature on mass transfer in the dense phase of fluidized beds, showing the 572 Mass Transfer in Multiphase Systems and its Applications main achievements and the limitations...
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Mass Transfer in Multiphase Systems and its Applications Part 16 doc
Ngày tải lên :
20/06/2014, 06:20
... entering starch grains, metallic ion particles and some of polymer particles into the blood Intestinal drug absorption Interest has grown in using in vitro and in situ methods to predict in vivo absorption ... remaining void space is occupied by the fluid phase 623 Heat and Mass Transfer in Packed Bed Drying of Shrinking Particles Interactions between the solid and fluid phases by heat and mass transfer ... Care was taken to handle the small intestine gently and to minimize the surgery in order to maintain an intact blood supply Blank perfusion buffer was infused for 10 by a syringe pump followed...
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Mass Transfer in Multiphase Systems and its Applications Part 17 potx
Ngày tải lên :
20/06/2014, 06:20
... and Mass Transfer in Packed Bed Drying of Shrinking Particles 4.2 Influence of shrinkage on drying behaviour and mass transfer parameters The theory of drying usually states that the drying behaviour ... drying kinetics although this phenomenon could strongly affect the water diffusion during drying The in uence of shrinkage on drying rates and water diffusion is hence examined in the following ... implemented in mathematical modeling so as to obtain more realistic results on heat and mass transfer characteristics in drying of deformable media Drying kinetics Among the several factors involved in...
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