3description and construction of the finite element model

... is the mass of the gas in the bulb; cpg , the specific heat of the gas; mw , the mass of the wall of the bulb; cpw , the specific heat of the wall; hf , the heat transfer coefficient between the ... version of discrete systems, and the accuracy of the solution can be controlled by changing the number of unknowns and elements The Fundamentals of the Finite Element Method for Heat and Fluid ... chapters of the book deal with the essential fundamentals of both the heat conduction and the finite element method The first chapter deals with the fundamentals of energy balance and the standard...

Ngày tải lên: 17/03/2014, 13:53

... deformed in the grinding action The workpiece has a length of 2.3 mm, and a height of 0.036 mm The length of the workpiece is chosen to accommodate the groove made by the grit The groove on the workpiece ... larger elements Two middle layers have 720 elements each, while the last two contain 360 elements each The lengths of elements in these layers are correspondingly 3.2 and 6.4 µm The height of elements ... the workpiece The wave formation moves along the surface ahead of the grit The workpiece material is predicted to fail at elements, which locates directly under the grit and at the start of the...

Ngày tải lên: 08/06/2016, 12:57

... subject-specific model of human skull and brain (Model 1) segmented from CT and MRI data by Mimics The meshed model on the right shows the mid-sagittal view of the skull and CSF except the brain (B) ... allow the assessment of the injurious effects of different loading conditions and enable the development of enhanced head injury and protective equipment through the reconstruction of the different ... that the each of the NDT markers consists of a cluster of several elements in which the elemental average values of the strain data are collected (C) The bar chart shows the percentage of material...

Ngày tải lên: 10/09/2015, 09:04

... at standoff distance of 10 m) and impulsive blast loadings (5 to 10 kg TNT at standoff distance of m) In addition, the response of the panels due to multiple blasts was also investigated In the ... properties of the hybridfiber ECC can be incorporated into the FE models so that realistic timedependent behaviors of the material can be simulated The application of the LS-DYNA FE models to predict the ... in the Eulerian model of the concrete target Figure 5.1 Drop-weight hammer xx List of Figures Figure 5.2 Location of steel bars support Figure 5.3 FE model of the 100 mm thick SRHFECC panel and...

Ngày tải lên: 15/09/2015, 17:11

... However, the model was built with the assumption of axis-symmetry of the spine and did not include the posterior elements which are an integral part of the spine anatomy Therefore these two models ... ligaments and other soft tissue Many research efforts have been devoted into FE modeling of the lumbar motion segment 2.2.1 Previous finite element models The first finite element analysis of a spinal ... on the fundamentals of spine anatomy which is important to the understanding of the subsequently presented works Literature reviews on the finite element modeling of the lumbar motion segment and...

Ngày tải lên: 28/11/2015, 13:32

... fluid, and therefore the fluid pressure The smaller flow area, the higher velocity of the fluid The static pressure of the fluid drops as the square of the velocity increase and will reach the vapour ... engineers The PWS model and the Tulsa model differ only in the treatment of the two empirical, dimensionless parameters, K n and K td , which are the loss parameters for the nozzle and the throat-diffuser, ... data it is referred to the thesis The analysis of the data followed the model of Petrie, Wilson and Smart (PWS) This model is based on conservation of mass and energy, and is widely familiar...

Ngày tải lên: 23/10/2013, 08:42

... standard of Vietnam (TCVN 5942/95/B) [4, 9] The two reasons for this situation are the discharges of cattle waste into channels then to river and the uses of fertilizer The concentrations of DO, ... mixed It uses a finite- difference solution of the advective-dispersive mass transport and reaction equations The model is intended for using as a water quality planning tool [5] The modeling procedure ... Water Quality Model (QUAL2E) is a comprehensive and versatile stream water quality model It can simulate up to 15 water quality constituents in any combination desired by the user The model is applicable...

Ngày tải lên: 05/03/2014, 10:20

... Project Limitations of Use The Council of the University of Southern Queensland, its Faculty of Engineering and Surveying, and the staff of the University of Southern Queensland, not accept any ... is the sinking of the floating roof The floating roof overtopped by the liquid inside the tank and the roof sunk To the worst case, the tank will catch fire due to the spark generated during the ... Jamming of roof seals due to (progressively increasing) out -of- roundness of the tank shell • Roof seals giving a gap as the result of out -of- roundness and/ or tilting of the roof • Loss of buoyancy of...

Ngày tải lên: 15/03/2014, 05:20

... Present, and Future of the Concept by A Ostenwalder, Y Pigneur, and C.L Tucci 1990s This surge coincidences with the advent of the Internet in the business world and the steep rise of the NASDAQ ... process modeling, which is the activity of modeling processes [Aguilar-Savén 2004] and not business models Furthermore, in the domain of business process models, a multitude of tools and concepts ... business logic of a specific firm It is a description of the value a company offers to one or several segments of customers and of the architecture of the firm and its network of partners for...

Ngày tải lên: 15/03/2014, 21:20

... change was calculated by the ratio of the intensity between the O-glycosylated Sp1 and the whole Sp1 signals The ratio in the absence of both glutamine and azaserine was set as The same results were ... slightly increased, but then the mRNA levels of both SREBPs and their target genes became significantly elevated at and 12 h (Fig 4) Based on the fact that the increase in the mRNA of these genes was ... results imply the involvement of the O-glycosylation of Sp1 in the induction of SREBP-1a transcription by glutamine The gene expression of SREBP-1c, which represented less than 20% of the SREBP-1a...

Ngày tải lên: 28/03/2014, 22:21

... basis of the P2 -element; vertex functions 153 4.17 Nodal basis of the P2 -element; edge functions 153 4.18 Nodal basis of the P3 -element; vertex functions 154 4.19 Nodal basis of the P3 -element; ... part of modern engineering and science The most general and efficient tool for the numerical solution of PDEs is the Finite element method (FEM), which is based on the spatial subdivision of the ... reduce the size of finite element computations significantly The higher-order finite element methods, however, require a better knowledge of the underlying mathematics In particular, the understanding...

Ngày tải lên: 31/03/2014, 15:57

Ngày tải lên: 08/04/2014, 10:29

... Organization Quality of Life Group [16,17] for the development and adaptation of quality of life measures and was used for the development of the WHOQOL-OLD module [18,19] Regarding development of new measures ... important for testing the validity of existing models and measures, since most of the discussion tends to reflect only the academic point of view [13] Even though investigating the ageing process ... combination of classical psychometric theory and Rasch Analysis in the validation of the AAQ instrument in a Brazilian sample of older adults Methods Pilot study The pilot study followed the methodology...

Ngày tải lên: 18/06/2014, 22:20

... Organization Quality of Life Group [16,17] for the development and adaptation of quality of life measures and was used for the development of the WHOQOL-OLD module [18,19] Regarding development of new measures ... important for testing the validity of existing models and measures, since most of the discussion tends to reflect only the academic point of view [13] Even though investigating the ageing process ... combination of classical psychometric theory and Rasch Analysis in the validation of the AAQ instrument in a Brazilian sample of older adults Methods Pilot study The pilot study followed the methodology...

Ngày tải lên: 20/06/2014, 16:20

... carbon than the first leaves of either of the other types Subsequent differences between the carbon gain of the first leaves of the sun type and the adaptive type reflected the interplay between increasing ... version of the model considers only the carbon dynamics of alder trees Flows of water and nutrients are not considered Carbon uptake and flow between the plant organs are modelled by the use of various ... about 18 m high and 601 ALMIS: Tree growth model of light acclimation Table I Empirical basis for the elementary units and the functions of carbon dynamics [14-17, 21] and their mathematical realisation...

Ngày tải lên: 08/08/2014, 14:22

... an unitary stress of N distributed among the knots of the other ending, in the mental region (Figure 2) In view of the large number (270,000 to 305,000) of finite elements in the meshes generated, ... sagittal osteotomy of the mandibular ramus One of the splits was perpendicular to the mandibular ramus long axis, 13 mm from the mandibular incisure, another was parallel to the external oblique ... validated by a finite element numerical model) ; The finite element analysis method has been used in the last decades for study of biological structures such as bone In these cases, geometry of the structures...

Ngày tải lên: 12/08/2014, 00:20

... characterization of SAV3 5'- and 3'-ends The 5'- and 3'-ends of SAV3 were cloned and sequenced from the isolate SAVH20/03 and aligned to the 5'- and 3'-UTRs of other SAVs A) Alignment of the region in the ... the design of the project, discussion through the experimental period, and contributed to the writing of the manuscript Acknowledgements MK and AN are funded by the University of Bergen and the ... overlapping areas off the coast of Ireland, Northern Ireland and Scotland In Norway a genetically homogeneous subtype, SAV3, is found to infect both Atlantic salmon and rainbow trout on the southwest...

Ngày tải lên: 12/08/2014, 04:20

... presentation of the bi-directional different The the The schematic presentation of the bi-directional promoter and the parts and directions of the promoter in different constructs , indicates the deleted ... described[17] Construction of recombinant plasmids expressing CAT gene under the control of different promoters Construction of the bi-directional promoter was made by the use of a series of primers synthesized ... Analysing the structure of the bi-directional promoter (Figure 4), both of the Sp1 enhancers were in side of 1.8-kb mRNA, their enhance function may only act on the single side Materials and reagents...

Ngày tải lên: 12/08/2014, 04:21

... follow up Page of Several models exist to explain the influence of nonphysical factors on the development of chronicity and treatment resistance Amongst the more widely investigated is the fear-avoidance ... between 37% and 53% of the variance in PGIC with a sensitivity of 71% and specificity of 89% In this model higher post visit CSQ and FAB scores were associated with poor outcome at month (OR of 13.5 ... Elsevier [46] avoidance of activity and thus enter the cycle postulated in the fear-avoidance model Self-efficacy is the belief in one’s capabilities to organise and execute the actions required...

Ngày tải lên: 13/08/2014, 14:20

... around the door The total value of the leakage area will therefore depend on the length of the cracks (i.e on the size of the door and on the design and operation of the door) In general, doors enclosing ... between the lobby and staircase will be the sum of 1) the air supplied to the staircase by the supply duct, and 2) all the air that will flow into the staircase past the closed door from all the other ... Association The use of adhesive tape should not be relied upon for the long-term sealing of ducts The layout of the ductwork and the sizing of the main duct or manifold and of the branch ducts should...

Ngày tải lên: 28/09/2014, 23:27