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  • 1
    Online Resource
    Online Resource
    Newark :John Wiley & Sons, Incorporated,
    Keywords: Oil well logging. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (314 pages)
    Edition: 1st ed.
    ISBN: 9781118925959
    Series Statement: Advances in Petroleum Engineering Series
    Language: English
    Note: Intro -- Half Title page -- Title page -- Copyright page -- Preface -- Acknowledgements -- Chapter 1: Basic Ideas, Interpretation Issues and Modeling Hierarchies -- 1.1 Background and Approaches -- 1.2 Modeling Hierarchies -- 1.3 Experimental Methods and Tool Calibration -- 1.4 References -- Chapter 2: Single-Phase Flow Forward and Inverse Algorithms -- 2.1 Overview -- 2.2 Basic Model Summaries -- Chapter 3: Advanced Drawdown and Buildup Interpretation in Low Mobility Environments -- 3.1 Basic Steady Flow Model -- 3.2 Transient Spherical Flow Models -- 3.3 Multiple-Drawdown Pressure Analysis (Patent Pending) -- 3.4 Forward Analysis with Illustrative Calibration -- 3.5 Mobility and Pore Pressure Using First Drawdown Data -- 3.6 Mobility and Pore Pressure from Last Buildup Data -- 3.7 Tool Calibration in Low Mobility Applications -- 3.8 Closing Remarks -- 3.9 References -- Chapter 4: Phase Delay and Amplitude Attenuation for Mobility Prediction in Anisotropic Media with Dip* -- 4.1 Basic Mathematical Results -- 4.2 Numerical Examples and Typical Results -- 4.3 Layered Model Formulation -- 4.4 Phase Delay Software Interface -- 4.5 Detailed Phase Delay Results in Layered Anisotropic Media -- 4.6 Typical Experimental Results -- 4.7 Closing Remarks - Extensions and Additional Applications -- 4.8 References -- Chapter 5: Four Permeability Prediction Methods -- 5.1 Steady-State Drawdown Example -- 5.2 Early-Time, Low-Mobility Drawdown-Buildup -- 5.3 Early-Time, Low-Mobility Drawdown Approach -- 5.4 Phase Delay, Non-Ideal Rectangular Flow Excitation -- Chapter 6: Multiphase Flow with Inertial Effects -- 6.1 Physical Problem Description -- 6.2 Immiscible Flow Formulation -- 6.3 Miscible Flow Formulation -- 6.4 Inertial Effects with Forchheimer Corrections -- 6.5 References -- Chapter 7: Multiphase Flow - Miscible Mixing Clean-Up Examples. , 7.1 Overview Capabilities -- 7.2 Source Code and User Interface Improvements -- 7.3 Detailed Applications -- Chapter 8: Time-Varying Flowline Volume -- 8.1 Transient Anisotropic Formulation for Ellipsoidal Source -- 8.2 FT-06 Software Interface and Example Calculations -- 8.3 Time-Varying Flowline Volume Model -- Chapter 9: Closing Remarks -- References -- Index -- About the Authors.
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  • 2
    Online Resource
    Online Resource
    Cham :Springer International Publishing AG,
    Keywords: Neurosciences. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (180 pages)
    Edition: 1st ed.
    ISBN: 9783319553108
    Series Statement: Intelligent Systems Reference Library ; v.126
    DDC: 006.3
    Language: English
    Note: Intro -- Preface -- Contents -- Acronyms -- 1 Introduction -- 1.1 Background -- 1.2 Spiking Neurons -- 1.2.1 Biological Background -- 1.2.2 Generations of Neuron Models -- 1.2.3 Spiking Neuron Models -- 1.3 Neural Codes -- 1.3.1 Rate Code -- 1.3.2 Temporal Code -- 1.3.3 Temporal Code Versus Rate Code -- 1.4 Cognitive Learning and Memory in the Brain -- 1.4.1 Temporal Learning -- 1.4.2 Cognitive Memory in the Brain -- 1.5 Objectives and Contributions -- 1.6 Outline of the Book -- References -- 2 Rapid Feedforward Computation by Temporal Encoding and Learning with Spiking Neurons -- 2.1 Introduction -- 2.2 The Spiking Neural Network -- 2.3 Single-Spike Temporal Coding -- 2.4 Temporal Learning Rule -- 2.4.1 The Tempotron Rule -- 2.4.2 The ReSuMe Rule -- 2.4.3 The Tempotron-Like ReSuMe Rule -- 2.5 Simulation Results -- 2.5.1 The Data Set and the Classification Problem -- 2.5.2 Encoding Images -- 2.5.3 Choosing Among Temporal Learning Rules -- 2.5.4 The Properties of Tempotron Rule -- 2.5.5 Recognition Performance -- 2.6 Discussion -- 2.6.1 Encoding Benefits from Biology -- 2.6.2 Types of Synapses -- 2.6.3 Schemes of Readout -- 2.6.4 Extension of the Network for Robust Sound Recognition -- 2.7 Conclusion -- References -- 3 A Spike-Timing Based Integrated Model for Pattern Recognition -- 3.1 Introduction -- 3.2 The Integrated Model -- 3.2.1 Neuron Model and General Structure -- 3.2.2 Latency-Phase Encoding -- 3.2.3 Supervised Spike-Timing Based Learning -- 3.3 Numerical Simulations -- 3.3.1 Network Architecture and Encoding of Grayscale Images -- 3.3.2 Learning Performance -- 3.3.3 Generalization Capability -- 3.3.4 Parameters Evaluation -- 3.3.5 Capacity of the Integrated System -- 3.4 Related Works -- 3.5 Conclusions -- References -- 4 Precise-Spike-Driven Synaptic Plasticity for Hetero Association of Spatiotemporal Spike Patterns. , 4.1 Introduction -- 4.2 Methods -- 4.2.1 Spiking Neuron Model -- 4.2.2 PSD Learning Rule -- 4.3 Results -- 4.3.1 Association of Single-Spike and Multi-spike Patterns -- 4.3.2 Generality to Different Neuron Models -- 4.3.3 Robustness to Noise -- 4.3.4 Learning Capacity -- 4.3.5 Effects of Learning Parameters -- 4.3.6 Classification of Spatiotemporal Patterns -- 4.4 Discussion and Conclusion -- References -- 5 A Spiking Neural Network System for Robust Sequence Recognition -- 5.1 Introduction -- 5.2 The Integrated Network for Sequence Recognition -- 5.2.1 Rationale of the Whole System -- 5.2.2 Neural Encoding Method -- 5.2.3 Item Recognition with the PSD Rule -- 5.2.4 The Spike Sequence Decoding Method -- 5.3 Experimental Results -- 5.3.1 Learning Performance Analysis of the PSD Rule -- 5.3.2 Item Recognition -- 5.3.3 Spike Sequence Decoding -- 5.3.4 Sequence Recognition System -- 5.4 Discussions -- 5.4.1 Temporal Learning Rules and Spiking Neurons -- 5.4.2 Spike Sequence Decoding Network -- 5.4.3 Potential Applications in Authentication -- 5.5 Conclusion -- References -- 6 Temporal Learning in Multilayer Spiking Neural Networks Through Construction of Causal Connections -- 6.1 Introduction -- 6.2 Multilayer Learning Rules -- 6.2.1 Spiking Neuron Model -- 6.2.2 Multilayer PSD Rule -- 6.2.3 Multilayer Tempotron Rule -- 6.3 Heuristic Discussion on the Multilayer Learning Rules -- 6.4 Simulation Results -- 6.4.1 Construction of Causal Connections -- 6.4.2 The XOR Benchmark -- 6.4.3 The Iris Benchmark -- 6.5 Discussion and Conclusion -- References -- 7 A Hierarchically Organized Memory Model with Temporal Population Coding -- 7.1 Introduction -- 7.2 The Hierarchical Organized Memory Model -- 7.2.1 Neuron Models and Neural Oscillations -- 7.2.2 Temporal Population Coding -- 7.2.3 The Tempotron Learning and STDP -- 7.3 Simulation Results. , 7.3.1 Auto-Associative Memory -- 7.3.2 Episodic Memory -- 7.4 Discussion -- 7.4.1 Information Flow and Emergence of Neural Cliques -- 7.4.2 Storage, Recall and Organization of Memory -- 7.4.3 Temporal Compression and Information Binding -- 7.4.4 Related Works -- 7.5 Conclusion -- References -- 8 Spiking Neuron Based Cognitive Memory Model -- 8.1 Introduction -- 8.2 SRM-Based CA3 Model -- 8.2.1 Spike Response Model -- 8.2.2 SRM-Based Pyramidal Cell -- 8.2.3 SRM-Based Interneuron -- 8.3 Convergence of Synaptic Weight -- 8.4 Maximum Synaptic Weight to Prevent Early Activation -- 8.5 Pattern Completion of Auto-Associative Memory -- 8.6 Discussion -- 8.7 Conclusion -- References.
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Solid state phenomena Vol. 124-126 (June 2007), p. 899-902 
    ISSN: 1662-9779
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Physics
    Notes: Monodisperse FePt nanoparticles were synthesized by thermal decomposition of Fe(CO)5and reduction of Pt(acac)2 at low temperature of 160–180 °C by using kerosene as a solvent. Theaverage sizes of the synthesized particles ranged from 2.2 to 4.4 nm. Thermal annealing of theas-prepared FePt particles at 700 °C for 1 h transformed the crystalline structure of the particles froma disordered face-centered cubic to an ordered face-centered tetragonal. This change led to asignificant increase in coercivity from 153.37 to 2273.22 Oe and in saturated magnetization from26.86 to 41.21 emu/g
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 117 (2002), S. 1686-1691 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: We investigate the effects of the long-range dipolar interaction on the formation of the stripe patterns in two-dimensional (2D) spin systems with competing short- and long-range interactions by using the continuous time Monte Carlo technique. We find that there exists an optimal temperature region at which the best stripe patterns are prone to be formed, and the stability and the orientational ordering of striped structures mainly depend on the temperature T, while the width of the striped domains is determined by the strength of the long-range dipolar interaction g. Furthermore, a complete T-g phase diagram is obtained. The results provide a simple and universal picture to account for striking and substantial physics revealed in the prevalent striped morphologies of 2D spin systems. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 113 (2000), S. 6398-6403 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: We study the phase separation of amphiphilic systems with vacancies using Monte Carlo simulation of Larson models. We try to clarify the effect of vacancy on the domain growth of a microemulsion at different quench temperatures, and obtain the phase-separating morphology, the time evolution of the structure factor, and the characteristic length scale of the system. It is found that for the deep quench case, vacancies tend to locate at interfaces and accelerate phase separation. However, for shallow quenches an amount of vacancies migrates into the bulk phase and domain growth kinetics assisted by vacancies at interfaces is balanced by the lowering interface tension of vacancies. This has been attributed to the interplay between vacancy-mediated segregation dynamics and reduction of driving force for the phase separation through vacancies at interface, depending on the quench temperatures. On the contrary, all the amphiphile molecules are still deposited onto interfaces even for high temperatures because of the chain properties of the amphiphiles. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 116 (2002), S. 7783-7786 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: We report a simulation on the formation of ordered stripe structures of nanoscale rods driven by symmetric diblock copolymer melts. Due to the preferential adsorption of one species of the diblock onto the mobile rods, the phase ordering process will couple with the movement of rods. We find that the self-assembly of rods on the copolymer scaffold produces the highly ordered nanowires of rods, and copolymer blends in turn form the well-oriented lamellar structure. This is due to the interplay among the micro-phase separating dynamics in the diblock copolymer, the wetting interaction between rods and diblock copolymer, and the nematic ordering dynamics of rods. We examine the influence of the domain size, the wetting strength, and the rod number density on the formation of such a nanoscale structure. Additionally, we indicate that the orientation of the pattern can be well controlled by external fields acting on the rods. The results suggest that our model system may provide a novel and simple way to control and design the ordering nanowire structure. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 114 (2001), S. 3734-3738 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Numerical simulation of the phase separation kinetics in ternary mixtures with different interfacial properties is performed by means of the cell dynamics approach. We discuss the effects of the competition between the phase separation and the wetting phenomena on the system morphology and growth dynamics. Morphological changes and domain growth due to different interfacial properties including wetting and interface tension difference between two interfaces are observed in the late stage of spinodal decomposition. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 116 (2002), S. 7719-7723 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The structural organization in binary immiscible fluids is studied in the presence of mobile particles. We show that the particles, which are included in the favorable phase due to a selective affinity and assemble therein, can drive the favorable phase to self-organize into cluster, interconnected, and network structures, depending on the particle concentration. The detailed studies enable us to confirm the physical origin of the morphology transitions: At low particle concentration, the assembly of particles would amplify the spatial heterogeneity by depleting the favorable phase in the particle-free region, where the hydrodynamic flows further accelerate the dropletlike formation of favorable phase; with increasing the particle concentration, the assembly of particles becomes energetically unfavorable due to the considerably excluded volume effect of particles and they tend to stabilize the percolated structure of the favorable phase. Furthermore, the respective crossover behaviors of the growth dynamics are also observed, corresponding to different structure formations. © 2002 American Institute of Physics.
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  • 9
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 89 (2001), S. 5031-5035 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We study the ferroelectric system consisting of the sandwich structure (PbTiO3/BaTiO3/PbTiO3) by using the Ginzburg–Landau phenomenological theory, and emphasize the importance of the long-range coupling interaction to the ferroelectric behavior of the system. We find that after introducing the long-range coupling interaction to the ferroelectric behavior of the sandwich system, the average spontaneous polarization of the interlayer (BaTiO3) increases and a size-driven phase transition disappears. The larger the range of the long-range coupling, the larger the average spontaneous polarization. When the range of the long-range coupling is large enough, the average spontaneous polarization increases gradually with decreasing interlayer thickness, reaches one maximum at a certain finite thickness, and then decreases. The spatial distribution profile of the spontaneous polarization on the range of the coupling interaction for different values of the interlayer thickness is obtained, and the dependence of the averaged polarization on temperature is also examined. © 2001 American Institute of Physics.
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  • 10
    ISSN: 1460-9568
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: This study was designed to provide evidence for elucidating the mechanisms of neurokinin-3 receptor (NK3) in spinal pain modulation. First, colocalization of NK3 with the µ-opioid receptor (MOR1) was studied in the spinal dorsal horn of the rat. Confocal microscopy showed that about 44% of NK3-expressing neurons in laminae I and II were immunoreactive for MOR1, which corresponded to about 93% of the total population of MOR1-containing neurons in these laminae. Second, the relationship between NK3/MOR1-coexpressing neurons and those that express nitric oxide synthase (NOS) was examined by using a triple immunofluorescent staining method. About 37% of NK3-immunoreactive neurons were also NOS-immunoreactive, which constituted about 82% of NOS-immunoreacitve neurons in the superficial laminae. However, no triple-labelled neurons were detected. The present results indicate that there are two major distinct subpopulations of NK3-expressing neurons in the superficial dorsal horn, which suggests that the involvement of NK3 receptor in spinal nociception could be mediated by two distinct mechanisms, i.e. opioid and nitric oxide.
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