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VELIKA ENCIKLOPEDIJA 1-12 komplet 1. Svemir 2. Evolucija i genetika 3. Biljni svet 4. Beskičmenjaci 5. Ribe i vodozemci 6. Gmizavci i dinosauri 7. Ptice 8. Sisari 9. Ljudsko telo 10. Energija i kretanje 11. Tehnologija 12. Klima i vremenske prilike Izdavač: Knjiga komerc, Beograd, 2012. Tvrdi povez, latinica, bogato ilustrovano u boji, odlično očuvane knjige. vs

58963) TRANSONIC AERODYNAMICS NUMERICAL ANALYSIS , Petrović Z. , Stupar S. , Mechanical Engineering Faculty University of Belgrade 1996 ; Contents : 1 Introduction 1.1 Preliminary Remarks. 1.2 Governing Equations 1.3 Simplifications to the Governing Equations 1.3.1 Definition of an Adiabatic Flow. 1.3.2 Definition of an Irrotational Flow 1.3.3 Crocco`s Theorem 1.3.4 Isentropic Gas Relation 1.4 Algebraic Form of Energy Equation for Steady Adiabatic Flow 1.5 The Isentropic Form of the Energy Equation 1.6 The Momentum Conservation Laws. 1.7 Isentropic Shocks vs. `Real World Shocks` 1.7.1 Rankine-Hugoniot approach 1.7.2 Isentropic approach 1.8 Techniques for Handling Shocks in Potential Flow Calculations 1.9 Summary 2 Transonic Small Disturbance Equation 2.1 Preliminary Remarks. 2.1.1 Treatment of Flow Angle of Attack 2.2 Definition of Disturbance Potential 2.3 Boundаry Conditions for Flow at the Body Surface 2.4 Derivation of the TSD Equation 2.5 Properties of the TSD Equation. 2.6 Finite Difference Terminology 2.7 Conservation Form vs. Non-Conservation Form 2.8 Finite Difference Expression Form of the TSD Equation in Subsoni 2.9 Murman-Cole Switching in supersonic Regions 2.10 Discretization Error Associated with Equation (2.2) 2.11 Loss of Conservation Property due to Switching 2.12 Murman-Cole Switching in Conservation Form 2.13 Application of Boundary Conditions 2.13.1 Region Ahead of the Leading Edge: (1 2.13.2 Region of the Slit: (ILE SITE) 2.13.3 Region Downstream of the Trailing Edge: (ITE << Imax 2.14 Far Field Boundary Conditions 2.15 Relaxation Procedure for the TSD Equation 2.15.1 Gauss-Seidel Scheme 2.16 The Point Successive Over-Relaxation (SOR) Scheme 2.17 The Line Gauss-Seidel Iteration Scheme 2.18 The Thomas Algorithm 2.19 Solution of the SLOR Scheme to TSD Equation 2.20 Summary 3 The Transonic Full Potential Equation 3.1 Introduction 3.2 Jameson`s Rotated Difference Scheme 3.3 Transformation of the Continuity Equation to a Curvilinear Coordina System. 3.4 Boundary Conditions. 3.4.1 Boundary Condition at the Solid Surface 3.4.2 Boundary Conditions at the Far Field... 3.5 Governing Equation for Axisymmetric Flows in the Transformed Plan 3.6 Construction of the Body-Fitted Coordinate system... 3.6.1 H-grid, algebraic approach 3.6.2 O-grid, algebraic approach. 3.7 Construction of C-Grids Around Airfoils 3.8 Generation of the Orthogonal Grid... 3.9 Discretization of the Governing Equation 3.10 Computation of Metrics at Half Points 3.11 Computation of Densities and Contravariant Velocities.. 3.12 Relaxation Procedure for Solving the Full Potential Equation 3.12.1 Interior Points 3.13 Summary 4 Numerical Technique for Designing Airfoils 4.1 Introduction. 4.2 Optimization Approach 4.2.1 Design Objective 4.2.2 Design Point 4.2.3 Starting Point. 4.2.4 Design Variables 4.2.5 Design Constraints 4.2.6 Black Box. 4.3 CONMIN to Black Box Coupling. 4.3.1 Optimization Process 4.4 Inverse Design Techniques. 4.5 Carlson`s Inverse Design Technique.. 5 Unsteady Transonic Potential Flow 5.1 Introduction. 5.2 Governing Equations 5.3 Unsteady Transonic Small Disturbance Equation 5.4 Boundary Conditions. 5.5 Low-Frequency Approximation 5.6 Characteristic of the Low-Frequency Transonic Small Disturbance Equation. 5.7 Discretization of the Low-Frequency Small-Disturbance Equation. A Solution of the diagonal system of equations A.1 Three diagonal Equation System A.2 Quad-Diagonal Matrix System B Selected Papers paperback, size 20,5 x 29 cm , English , 152 pages

Autor: Alessandro Agnini, Andrea Agnini, Christian Coachman Izdavač: Quintessence Publishing, 2017. Tvrd povez, 400 str. Format: 288 x 215 x 30 mm Težina: 1955 gr Digital dental revolution - The learning curve + CD For many years systematized and well-established conventional protocols have been used in prosthetic rehabilitations, yielding results that met clinicians’ expectations and often exceeded those of patients. Over time the advent of new technologies and new materials has enabled the dental team to create prosthetic rehabilitations with an accuracy and precision that were previously difficult to obtain. Today, intraoral scanning technology is one of the most exciting new areas in dentistry, with three-dimensional digital reconstruction of the oral structures facilitating a wide range of procedures in fields such as prosthodontics, implant dentistry, and orthodontics. Currently available intraoral scanners overcome many of the limitations and disadvantages of traditional impression procedures while maintaining a high level of accuracy, making them an efficacious alternative to conventional impression techniques. In this book, the authors introduce the protocol they have used in their own practice, integrating new digital technologies and advanced materials with experience gained from using traditional techniques to provide restorations with optimal strength, esthetics, and function while reducing treatment times and improving patient comfort. Many cases are presented, highlighting the modified protocols the authors have developed over time with their increasing knowledge of new materials and the ongoing development of new technology and demonstrating a level of quality in the results that is on par with if not superior to that achieved using conventional methods. New Technologies Tradition vs innovation: What has changed? Traditional protocol work flow Technical work flow with CAD/CAM technology Material selection and treatment plan sequencing Zirconia Mechanical properties of zirconia ceramics CAD/CAM technology for fabrication of zirconia abutments and frameworks for crowns and fixed dental prostheses Considerations for using zirconia as a restorative material Considerations for fixed implant restoration designs Zirconia abutments Recommended clinical protocols Diagnosis and Communication Smile analysis and esthetic designs Initiating smile analysis: Evaluating facial and orofacial esthetics Evaluating oral esthetics Dentogingival esthetics Digital Smile Design approach DSD protocol: Esthetic diagnosis, Communication, Feedback, Patient management, Education DSD work flow DSD concept goals Smile design test drive DSD Connect The four DSD views The Digital Impression Digital impressions in the literature The digital work flow The Zfx intraoral scanner Highlights of the system Important areas Areas of less importance Target area definition General scan Checking and finishing phase Learning curve Knife-edge preparation: A possibility with new materials? Zirconia and new technologies New customized abutment design: Zirconia inside laminate (ZIL) Is it possible to apply ZIL in the anterior dentition? Soft tissue displacement: Indications, purpose, and techniques Impression objectives Implants and digital impressions Surgical procedure Tooth extraction Implant placement Trabecular Metal Material Gap management Provisional restoration fabrication Connective tissue graft augmentation Bone graft augmentation Digital impression taking Technical work flow Protocol for overbuilding of the socket site CAD/CAM implant abutments: The true advantage Titanium or zirconia abutments: What is the rationale? Treatment planning in complex cases Patient complaint and history Preliminary tests and treatment Diagnosis and treatment plan Surgical phase Immediate provisional restoration Definitive restoration work flow Advantages of three-dimensional dental imaging Surgical phase Prosthetic phase Definitive restoration: The role of digital dentistry Scanning strategy: A critical step for success Passive fit The New Digital Possibilities Monolithic zirconia: Why and when Zfx Zirconium Effect 2.0 Multilayer Combining clinical experience: Monolithic zirconia crowns and digital impressions for a predictable restorative alternative Preliminary healing time Monolithic zirconia and intraoral scanner: Predictable for complex rehabilitations? Cementation: Finalization of the prosthetic rehabilitation New implant materials Trabecular Metal implant rationale Definitive prosthetic phase