computational biomechanics of musculoskeletal system and its tissues generation of patient specific finite element meshes
Patient specific finite element modeling of the human lumbar motion segment
... various forms of spinal pathologies Patient- specificity of a finite element model of the lumbar spine in both geometry and material property proves crucial to the study of the pathogenesis of lumbar ... desirable type of element, hexahedral elements From the computational biomechanics point of view, hexahedral elements are preferred over tetrahedral elements because tetrahedral elements can lead ... the expense of extended computational time Moreover, voxel mesh is not useful for modeling of soft tissues such as muscles and ligaments This is because material properties of soft tissues are...
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A new nodeling of the macpherson suspension system and its optimal pole placement control
... accelerations of the sprung mass of passive, semi-active and active suspension systems, when the magnitude and the frequency of the road input are 0.01 m and Hz Compared to the passive system, both ... Equations of Motion The equations of motion of the new model are now derived by the Lagrangian mechanics Let T , V and D denote the kinetic energy, the potential energy and the damping energy of the system, ... investigation of a new model that includes the rotational motion of the unsprung mass and allows for the variance of suspension types is justified The Macpherson type suspension system has many merits,...
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Tài liệu Báo cáo khoa học: From heart to mind The urotensin II system and its evolving neurophysiological role ppt
... tested and that will aid the understanding of UII’s interaction with other sleep and wake promoting systems Conclusions The discovery of UII as a direct activator of central cholinergic neurons and ... or its ligands will provide a rational approach for the investigation of the neurophysiological role of the UII system While our understanding of the molecular constituents of the UII system in ... in order to fully understand the extent of the UII system The involvement of the UII system in sleep also points to a possible circadian regulation of the transcript and ⁄ or protein levels that...
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Báo cáo khoa học: "From Single to Multi-document Summarization: A Prototype System and its Evaluation" pptx
... mark all system units sharing content with the current model unit, and specify that the marked system units Does a summary follow the rule of English grammatical rules independent of its content? ... with model units and use the total number of system units as the sample space We define this as pseudo precision, Precisionp, as follows: Number of SUs marked Total number of SUs in the systemsummary ... retention, and weighted retention for all summary lengths: overall average, 400, 200, 100, and 50 words If we count the number of model units that are marked as good summary units and are selected by systems,...
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Báo cáo hóa học: " A Frame Synchronization and Frequency Offset Estimation Algorithm for OFDM System and its Analysis" pdf
... analyzed and its mean and variance at the preamble boundary and in its neighborhood are evaluated for the case of AWGN and frequency selective channels Based on the mean and variance of the timing ... the paper A TYPICAL OFDM SYSTEM The block diagram of a typical OFDM transmitter is shown in Figure A block of input data bits is first encoded and interleaved The interleaved bits are then mapped ... estimate of the left edge of one of the first three segments of the first symbol, and d2 is the estimate of the left boundary of the second symbol The function Q(x) denotes the quantization of x to...
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Báo cáo hóa học: " A Technique for Dominant Path Delay Estimation in an OFDM System and Its Application to Frame " docx
... Rao, Vice President and General Manager of Hellosoft India Pvt Ltd and Dr Y Yoganandam, Senior Technical Director of Hellosoft India Pvt Ltd for their constant encouragement and support The authors ... samples of the base-band equivalent received signal, and d is a sample index corresponding to the left edge of a window of 2M samples R(d) gives an estimate of the energy in M samples of the received ... University and the University of Iowa His areas of research have been adaptive and sensor array signal processing, and during the last 10 years he has been focusing on the design of OFDM-based...
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thoughts on the funding system, and its effects
... industry, its waters become at once the ornament of the country and the instrument of its commerce The deity of the stream, then weary of beholding only mallards, and pollards, and reeds, and rats, and ... this havoc and bloodshed, of this taxation and squandering, of this waste of treasure and of life? An age of dissentions and animosities, of heart-rendings and blood-sheddings, has left the world ... takes place in the hands of individuals in the shape of buckles and buttons, of pictures and statues, would then take place in the hands of the state in equally useless heaps of sovereigns or Napoleons,...
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Development of a realistic finite element model of human head and its applications to head injuries
... need for biomechanical studies of head injury, its mechanisms and its tolerance to external loading To assess the biomechanics of head injury mechanisms, many finite element head models (FEHMs) ... Centre Of Gravity CSF Cerebrospinal Fluid CT Computed Tomography DAI Diffuse Axonal Injury DVBIC Defence And Veterans Brain Injury Centre FE Finite Element FEA Finite Element Analysis FEHM Finite Element ... Dislocati sprain a strain of joints and ligaments of ion, and d o head f rves Injury of cranial ner Injury of eye and orb f bit Intracran injury nial Crushing injury of h g head S01 S02 S03 S04...
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PHÂN TÍCH DAO ĐỘNG HỆ TRỤC CHÍNH TÀU THỦY BẰNG PHƯƠNG PHÁP PHẦN TỬ HỮU HẠN * VIBRATION ANALYSIS OF PROPULSION SYSTEM OF SHIP BY FINITE ELEMENT METHOD
... Fundamentals of Mechanical Vibration, NJ, 2001 J S Carlton: Marine Propellers and Propulsion System, Bulterworth Heineman, 1998 Loyd's Register: "Rules and Regulations for The Classification of Ships", ... T.Thomson: Theory of Vibration with Applications, Prentice Hall, 1982 M Géradin/D.Rixen: Mechanical Vibrations, Wiley, 1994 C.T.Sun, Y.P.LU: Vibration Damping of Structural Elements, Prentice...
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Family of Uniform Strain Tetrahedral Elements and a Method for Connecting Dissimilar Finite Element Meshes ppt
... use of the 2D and 3D meshes shown in Figure The tetrahedral meshes each consist of 320 elements (five element decomposition of each cubic block) For the 2D analysis, nodes on the boundaries of ... connecting dissimilar finite element meshes in two and three dimension [5-6] The method combines the concept of master and slave surfaces with the uniform strain approach for finite elements By modifying ... performance of alternative tetrahedral elements with uniform strain and enhanced uniform strain formulations, and (2) the proper connection of tetrahedral and other element types when two meshes are...
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1 acoustic modelling of exhaust devices with nonconforming finite element meshes and transfer matrices
... of computation time between conforming and nonconforming approaches Node searching algorithm and mesh generation Nodes Elements Location of nodes (s) Determination of intersections (s) Mesh generation ... Elements: 250 T T Nodes: 60 Elements: 12 Nodes: 164 Elements: 40 T T (b) Nodes: 566 Elements: 160 Nodes: 1208 Elements: 360 T T Nodes: 36 Elements: Nodes: 80 Elements: 16 T T (c) Nodes: 524 Elements: ... element assembly operator, N e represents the number of domain elements in the discretization of the subdomain X1, N e the number of contour elements associated with 1bc boundary conditions and...
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Báo cáo khoa học: "Determination of patient-specific internal gross tumor volumes for lung cancer using four-dimensional computed tomography" pptx
... and under or over-estimated volume Matching index calculation The matching index (MI) of any two 3D volumes A and B is defined as the ratio of the intersection of A with B to the union of A and ... IGTV2Phases in 15 patients, but in no patients when IGTVMIP-Modified was used Volumetric underestimation > 20% occurred in patients using the IGTVMIP and in patients using the IGTV2Phases Of the patients ... gray) of the test area gray) inside Computation ofarea underestimation area (dark (area and the solid Computation of the underestimation area (dark gray) and the overestimation area (light gray) of...
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the optimisation of finite element meshes
... The Quality of Finite Elements, Meshes and the Optimisation Process 3.1 Introduction Finite element meshes represent the discretisation of a domain and are composed of elements, often triangles ... function of the quality of its elements and the quality of an element can be described as a numerical measure which estimates the effect that the size/shape of an element will have on the accuracy of ... accurate results Finite Element meshes are composed of elements and the quality of an element can be described as a numerical measure which estimates the effect that the size/shape of an element will...
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Tài liệu MECHANICAL PROPERTIES OF THE HEART AND ITS INTERACTION WITH THE VASCULAR SYSTEM ppt
... understanding and will be the focus and repeating theme throughout the text A sound understanding of cardiac physiology begins with basic understanding of cardiac anatomy and of the physiology of ... the heart and vasculature is to maintain an adequate supply of nutrients in the form of oxygenated blood and metabolic substrates to all of the tissues of the body under a wide range of conditions ... of this manuscript is to provide a detailed understanding of the heart as a muscular pump and of the interaction between the heart and the vasculature The concepts of contractility, preload and...
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the situation of dolllarization in vietnam, it impacts on accounting system and economy of vietnam and actions to fight its
... 37 FINDING AND ANALYSIS 4.1 The Impacts of Dollarization on Accounting System and Economy of Vietnam 4.1.1 The Impacts of Dollarization on Accounting System 38-42 4.1.2 The Impacts of Dollarization ... level and the psychology of people, the level of development of the banking system, monetary policy and the foreign exchange management regime, convertibility of national currencies These elements ... different types of business enterprisers and different people 37 CHAPTER 4: FINDING AND ANALYSIS 4.1 The Impacts of Dollarization on Accounting System and Economy of Vietnam 4.1.1 The Impacts of Dollarization...
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Báo cáo khoa học: "A Comparative Study of Hypothesis Alignment and its Improvement for Machine Translation System Combination" pot
... the intersection of the two word alignments, and then continuously add new links between backbone and hypothesis if and only if both of the two words of the new link are unaligned and this link ... of 1/ (1 + r ) , where r is the rank of the hypothesis And we assign the same weights to each system For selecting the backbone, only the top hypothesis from each system is considered as a candidate ... select the set of shifts because an optimal sequence of edits (with shifts) is very expensive to find The best alignment is the one that gives the minimum number of translation edits TER-based...
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Báo cáo khoa học: "METONYMY: REASSESSMENT, SURVEY OF ACCEPTABILITY, AND ITS TREATMENT IN A MACHINE TRANSLATION SYSTEM S" ppt
... set of patterns and sub-groups, for example to decide whether we require either Producer-For-Product (Lakoff and Johnson 1980) or Artist-for-Artform (Fass 1991), or both of them A SURVEY OF METONYMY ... ideas using existing systems such as the ULTRA MT system (Wilks and Farwell 1990) and the Metallel metonymic analysis program (Iverson and Helmreich 1992) Iverson, Eric and Helmreich, Stephen ... Emphasis of one aspect, 3) Abstract and collective entity for its consisting concrete items, and 4) Information conveyer for information giver For example, sentence (2) belongs to the second group of...
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Báo cáo khoa học: "Grammar Writing System(GRADE) of Mu-Machtne Translation Project and its Characteristic" docx
... extt: end_sgn.PRE; SEARCH-CANDIDATE -OF- HOUNS.sg: sg_mode: o r d e r ( Z ) : rr_tn_sg: CANDIDATE -OF- NOUNS-t: UP-NP-TO-PNP: CANDIDATE -OF- NOUNS-Z; end_sg.SEARCH-CANDIDATE -OF- NOUNS: Ftgure An example ... t r u c t u r e of subgrammars, and c o n s t s t s of node s p e c i f i c a t i o n s and 11nk s p e c t f t c a t | o n s The node s p e c i f i c a t i o n has a l a b e l and a subgrammer ... from V and UP (a v e r b and a noun p h r a s e ) , and t h a t the o t h e r ts the r u l e t o c o n s t r u c t VP ( v e r b p h r a s e ) from V NP and PP (a v e r b a noun p h r a s e , and...
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Báo cáo khoa học: "Computational structure of generative phonology and its relation to language comprehension." pdf
... where A and B m a y be ~b or any unit, A ~ B; X and Y may be matrices (strings of units), and Z and W may be thought of a brackets labelled with syntactic categories such as 'S' or 'N' and so ... notational system first described in SPE (Chapter of Kenstowicz and Kisseberth (1979) contains a less technical summ a t y of the SPE system and a discussion of subsequent modifications and emendations ... characterisation of the class of regular languages over the alphabet of units; it is not used by practicing phonologists Because a given complex rule can represent an infinite set of elementary rules,...
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a study of the emergence of management accounting system ethos and its influence on perceived system success
... business units, its ongoing programme of culture change and its traditionally focussed and detailed standard accounting procedures were instrumental in influencing the structure and consequences of process ... a hallmark of PBTC that is not independent of their involvement in its design and development It is likely that prior conceptions of the nature and role of the Accounting Department and engineering ... nature and as such, their implementation fate is not independent of the preferences, goals and strategies of top managers Foster and Swenson (1997), McGowan and Klammer (1997) and Friedman and Lyne...
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