Discrete element modeling for flows of granular materials
Discrete element modeling for flows of granular materials
... DISCRETE ELEMENT MODELING FOR FLOWS OF GRANULAR MATERIALS BY LIM WEE CHUAN ELDIN (M.Eng., B.Eng (Hons.), NUS) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF CHEMICAL ... University for helpful discussions via video-conferencing on the subject of granular attrition which subsequently led to the formulation of a theoretical approach for modeling bulk granular attrition ... contact force fcn,ij normal component of contact force fct,ij tangential component of contact force fd,ij viscous contact damping force fdn,ij normal component of viscous contact damping force...
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Granular flow and heat transfer in a screw conveyor heater a discrete element modeling study
... Application of DEM in the study of granular flow 1.2.2 Application of DEM in the study of granular heat transfer 10 1.2.3 Study of granular flow and heat transfer in screw conveyors ... of a calciner and an impregnator, represented by a cylindrical vessel and a double cone vessel respectively Particle-particle heat transfer was modeled using standard heat balance equations and ... (direct heating) Experimental and theoretical model Heat transfer study; (Al-Kassir et al., 2005) SCD (indirect heating) Experimental Heat and mass transfer study; Studied the performance of a lab-scale...
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Granular flow and heat transfer in a screw conveyor heater a discrete element modeling study
... Application of DEM in the study of granular flow 1.2.2 Application of DEM in the study of granular heat transfer 10 1.2.3 Study of granular flow and heat transfer in screw conveyors ... of a calciner and an impregnator, represented by a cylindrical vessel and a double cone vessel respectively Particle-particle heat transfer was modeled using standard heat balance equations and ... (direct heating) Experimental and theoretical model Heat transfer study; (Al-Kassir et al., 2005) SCD (indirect heating) Experimental Heat and mass transfer study; Studied the performance of a lab-scale...
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Static properties of granular materials Philippe Claudin
... looks focused on the quasistatic rheology of a granular system, so why is all of this related to the description of its statics? As a matter of fact, the static properties of the studied sample are ... a series of captors), and are thus much noisier 250 Static properties of granular materials F r p h z Fig 14.13 Sketch of the experimental set-up of Reydellet et al for the measure of the pressure ... Refs.[447, 446, 412] 240 Static properties of granular materials Fig 14.6 Polar representation of the contact orientation distribution obtained in a numerical simulation of a granular layer prepared...
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The thermodynamics of granular materials Sir Sam Edwards and Raphael Blumenfeld
... in the literature when the areas of 222 The thermodynamics of granular materials the grains, rather than the quadrons, were taken as the fundamental particles of the system At present we know of ... 210 The thermodynamics of granular materials orifice into a cylinder and changes to a uniform source when the edges of the pile reaches the cylinder walls then the original sand pile will ... degrees of freedom}, and the usual result F = E −TS (13.11) 214 The thermodynamics of granular materials becomes Y = V − X S (13.12) Similarily, the analogue of the temperature T = ∂ E/∂ S is now the...
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concrete structures for containment of hazardous materials
... secondary containment system is a backup system for containment of hazardous materials in case the primary system leaks or otherwise fails for any reason CONCRETE STRUCTURES FOR CONTAINMENT OF HAZARDOUS ... reinforcement for prestressed concrete The minimum nonprestressed reinforcement in prestressed concrete containment structures should be 0.15 percent for secondary containment and 0.30 percent for ... and sumps of reinforced concrete construction Tanks may be constructed of prestressed or nonprestressed reinforced concrete They may also be constructed of steel or other materials with concrete...
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Inverse modeling for retrieval of optical properties of sea water and atmospheric aerosols from remote sensing reflectance
... Properties of Surveyed Waters 3.1 Introduction This project aims to develop algorithms for retrieval of water optical properties from remote sensing reflectance applicable to turbid coastal sea waters ... dependent on viewing angle and water properties while rrs (λ) is the underwater remote sensing reflectance The transmission of light from air to water and water to air is accounted for in Eq.(2.2) by ... important optical properties of both the atmosphere and the ocean The optical properties from the ocean can be used to relate to water quality parameters such as turbidity The optical properties of...
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standard practice for design and construction of concrete silos and stacking tubes for storing granular materials
... silos and stacking tubes for storing granular materials Silos for storing of ensilage have different requirements and are not included However, industrial stave silos for storage of granular materials ... ACI STANDARD Standard Methods of Sampling and Testing Concrete Masonry Units Standard Specification for Portland Cement Standard Specification for Liquid Membrane-Forming Compounds for Curing Concrete ... which covers design and construction of concrete silos and stacking tubes for storing granular materials, replaced the 1968 ACI Committee 313 Report 65-37 and was adopted as an ACI Standard in March...
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Modeling of ductile mode machining of brittle materials for endmilling
... MODELING OF DUCTILE- MODE MACHINING OF BRITTLE MATERIALS FOR END-MILLING MUHAMMAD ARIF (B Sc Industrial and Manufacturing Engineering) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY ... critical feed per edge for ductile- brittle transition in milling process of brittle materials 4.1 Mechanism of ductile machining for endmilling 4.2 Development of an analytical model ………………… 60 ………………… ... on ductile- mode machining of brittle material by milling process The underlying mechanism of material removal in endmilling of brittle materials and influence of machining parameters on the machining...
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Modeling and investigation of elastomeric properties in materials for additive manufacturing of mechanistic parts
... was initially an investigation into the viability of various AM processes and materials for the fabrication of interlinking structures like living hinges The initial study focused on the mechanistic ... possible to include integral gears and cams, mechanical and living hinges, snap fasteners and even fully interlocking meshes such as chain mail into a design and in a single manufacturing stage ... laser sintering of powders works Current materials being used in laser sintering of powders include polyvinyl chloride, polyester, ABS, nylon, polycarbonate and investment casting wax Ceramic and...
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Theory of stochastic local area channel modeling for wireless communications
... type Chapter discusses the basic form that a stochastic local area channel model must take Great care is taken in defining a local area and a stochastic local area channel, clearly stating the assumptions ... Spectral diagram of baseband and passband signals and channel CHAPTER FOUNDATIONS OF STOCHASTIC CHANNEL MODELING 18 Note: Communications vs Channel Modeling In communications theory, the time ... introduction to channel modeling theory It may be used as a springboard into all sorts of theoretical and applied research in wireless communications Chapter Foundations of Stochastic Channel Modeling...
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Development of supplementary materials to improve reading skills for the first year english majors at military science academy
... 15% 15% c inadequate to improve reading skills: 40% d monotonous: 30% 40% > + ) $ $ B a various: 13% 13% 29% b useful: 12% 12% c inadequate to improve reading skills: 46% d monotonous: 29% 46% ... c difficult: 10% d relevant: 25% e others: 10% 25% 40% 10% ) > 23% ) 0% 9% a interesting: 9% b boring: 48% c difficult: 20% d relevant: 23% 20% )&> 48% e others: 0% ) A , ) / / * 9A!R< 9A?R< ... 6R< + 9A!R< 9!R< ) :A B, $ ) / ? ) ) * # * !6 9?: R< / $ $ : = ;> ? ( 20% a at home: 80% b in class: 20% 80% + + 15% a at home: 85,5% b in class: 14,5% 85% +& & + ) ) , ?6 6R / / / ) ) * / ) ?!R...
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modeling the prosody of vietnamese language for speech synthesis
... this thesis is to model the characteristics of Vietnamese prosody for speech synthesis It focuses on the influences of the macro -prosody on the micro -prosody, in three types of sentence: assertive, ... characteristics of Vietnamese prosody to generate the prosody description” for speech synthesis In this thesis, we just focus on the differences of Vietnamese tones in different positions in the sentence ... "naturalness" of synthesized speech is depends on ability of macro -prosody controlling during speech synthesis process Objectives and Tasks This thesis is part of MICA speech synthesis research...
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Tài liệu Báo cáo khoa học: "Modeling the Translation of Predicate-Argument Structure for SMT" ppt
... head word Ah the leftmost word of A the rightmost word of A the translation of Ap the translation of Ah the leftmost word of the translation of A the rightmost word of the translation of A Table ... and the boundary words of the argument On the target side, the translation of the verbal predicate, the translation of the head word of the argument, as well as the boundary words of the translation ... 2006), the movements of predicate and its arguments across translations are like the motions of a planet and its satellites Therefore we consider the reordering of an argument as the motion of the...
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Từ khóa: good agricultural practice for traditional chinese medicinal materials people apos s republic of chinaapplication of simulation modeling for hurricane contraflow evacuation planningcomputational fluid dynamics and neural network for modeling and simulations of medical devicessvd based modeling for computerized classification of breast lesions on mammogramsselection of footwear materials for chemical resistancematerials issues for use of hydrogen in internal combustion enginescollecting processing and storage of plant materials for nutritional analysisdeterministic sampling for quantification of modeling uncertainty of signalsan original route for the synthesis of novel materialsnonlinear finite element model for the determination of elastic and thermal properties of nanocomposites3specificity of data bases of mould materials for virtualization of heat transfer and thermomechanical behaviour during casting processesdry screening of granular and powder materialsmesoscopic model for dynamic simulations and structural characterization of cnt materialsextended analysis of modeling for process operationtypes of packaging materials used for foodsBáo cáo quy trình mua hàng CT CP Công Nghệ NPVMột số giải pháp nâng cao chất lượng streaming thích ứng video trên nền giao thức HTTPNghiên cứu vật liệu biến hóa (metamaterials) hấp thụ sóng điện tử ở vùng tần số THzGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitPhát hiện xâm nhập dựa trên thuật toán k meansNghiên cứu, xây dựng phần mềm smartscan và ứng dụng trong bảo vệ mạng máy tính chuyên dùngNghiên cứu tổng hợp các oxit hỗn hợp kích thƣớc nanomet ce 0 75 zr0 25o2 , ce 0 5 zr0 5o2 và khảo sát hoạt tính quang xúc tác của chúngTìm hiểu công cụ đánh giá hệ thống đảm bảo an toàn hệ thống thông tinKiểm sát việc giải quyết tố giác, tin báo về tội phạm và kiến nghị khởi tố theo pháp luật tố tụng hình sự Việt Nam từ thực tiễn tỉnh Bình Định (Luận văn thạc sĩ)Quản lý nợ xấu tại Agribank chi nhánh huyện Phù Yên, tỉnh Sơn La (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 15: Tiêu hóa ở động vậtchuong 1 tong quan quan tri rui roGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtTrách nhiệm của người sử dụng lao động đối với lao động nữ theo pháp luật lao động Việt Nam từ thực tiễn các khu công nghiệp tại thành phố Hồ Chí Minh (Luận văn thạc sĩ)Đổi mới quản lý tài chính trong hoạt động khoa học xã hội trường hợp viện hàn lâm khoa học xã hội việt namHIỆU QUẢ CỦA MÔ HÌNH XỬ LÝ BÙN HOẠT TÍNH BẰNG KIỀMTÁI CHẾ NHỰA VÀ QUẢN LÝ CHẤT THẢI Ở HOA KỲ