Upscaling a 900 Million-Cell Static Model to Dynamic Model of the World's Largest Clastic Oil Field - Greater Burgan Field, Kuwait

2013 ◽  
Author(s):  
Eddie D C Ma ◽  
Reham Ali Al-Houti ◽  
Laila Dashti ◽  
Farida Ali ◽  
Sergey Alekseyevich Ryzhov ◽  
...  
Keyword(s):  
Dynamic Model ◽  
Static Model ◽  
Oil Field ◽  
The World

Platón, Einstein y el triunfo de la imaginatividad cosmológica

1998 ◽  
pp. 87-98
Author(s):  
T. M. Robinson
Keyword(s):  
Dynamic Model ◽  
Striking Similarity ◽  
Empirical World ◽  
The World ◽  
Modern Cosmology ◽  
Different Types ◽  
Physical Objects ◽  
Changing World

This article argues the following five claims: 1. Plato’s description of the origins of cosmos in the Timaeus is not a myth, nor something unlikely: when he called it an eikos mythos or eikos logos, he meant a likely or trustworthy account on this very subject. 2. Among the details in this account, the following are prominent and surprising: a) the world was fashioned in time, in that precise point that was the beginning of time; b) several kinds of duration can be distinguished in cosmology (mainly eternity, sempiternity, perpetuity and time); and c) space is an entity characterized by movement and tension. 3. In the Statesman, Plato repeats much the same thing, adding this time the strange notion that the universe’s circular movement is periodically reversed. 4. In spite of the important differences in detail, there is a striking similarity between Plato’s account of the origins of the world and the explanation adopted by much of modern cosmology. 5. What Plato shares with so many instances of recent thought is here termed “cosmological imaginativity”. A first section of the paper deals exclusively with the Timaeus. Claims 1 and 2a are supported by a revision of the meanings of mythos and logos, followed by brief reference and discussion of the argument at Timaeus 27d, leading to the conclusion that Plato affirms that the ever-changing world has indeed had a beginning in time. Claim 2b describes five different types of duration, corresponding to Forms, the Demiurge, Space, the [empirical] world and its contents, physical objects. The second section is concerned with the myth in the Statesman, discussing it as a parallel and describing its peculiar turn to the Timaeus’ cosmology and cosmogony, a complex spheric and dynamic model. After digressing into some important ideas in modern cosmology, touching especially on affinities of some of Einstein’s ideas with of Plato’s own, the paper closes with a discussion of cosmological imaginativity, oriented to recover and recognize fully Plato’s greatness as a cosmologist.

A Dynamic Assembly Modeling Method for Satellite Final Assembly Sequence Planning

2010 ◽  
Vol 156-157 ◽  
pp. 332-338
Author(s):  
Yuan Zhang ◽  
Kai Fu Zhang ◽  
Jian Feng Yu ◽  
Lei Zhao
Keyword(s):  
Dynamic Model ◽  
Static Model ◽  
Modeling Method ◽  
Assembly Sequence Planning ◽  
Assembly Model ◽  
Assembly Sequence ◽  
Final Assembly ◽  
Model Tree ◽  
Assembly Sequences ◽  
Dynamic Assembly

To study the effect of assembly process information combining disassemble and assemble on satellite assembly sequence, this paper presents an object-oriented and assembly information integrated model, which is composed of static model and dynamic model. The feasibility determination based on Cut-set theory is presented and the construction algorithm of dynamic model is established by static model, the dynamic assembly model tree is obtained by analyzing in layers and verifying possible states using this algorithm, where the assembly model tree includes all the geometric feasible assembly sequences of satellite. Finally, this modeling method is verified by a satellite product.

Corporate governance mechanisms and corporate investments: evidence from India

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Samridhi Suman ◽  
Shveta Singh
Keyword(s):  
Corporate Governance ◽  
Dynamic Model ◽  
Capital Expenditure ◽  
Agency Problem ◽  
Agency Problems ◽  
Static Model ◽  
Capital Expenditures ◽  
Content Type ◽  
Empire Building ◽  
The Impact

PurposeThe purpose of this paper is to empirically investigate the influence of corporate governance variables relating to the board of directors, audit and ownership on the agency problems that inflict a firm's investments in capital and research and development (R&D) expenditures. This study posits that the R&D investments are inflicted by the agency problem of “quiet life” whereas “empire-building” agency problem affects capital expenditure decisions.Design/methodology/ approachThis study analyses the investment behaviour of non-financial and non-utility firms listed on NIFTY 200 from FY 2009 to FY 2018 using a static and dynamic model.FindingsThe results from the static model suggest that ownership concentration mitigates the agency problem of the “quiet life” that affects R&D expenditures. However, no corporate governance attribute has a significant impact on R&D investments under the assumption of the dynamic model. In respect of capital expenditures, the analysis of static model yields that audits by large auditor firms and usage of non-audit services ameliorate the agency problem of “empire-building”. The results from the dynamic model show that independent boards worsen it. They also continue to provide empirical evidence in favour of large auditors.Originality/valueThis paper contributes to the literature on the corporate governance-investment association by simultaneously examining the impact of multiple corporate governance attributes on the agency problems of “quiet life” and “empire-building” that affect R&D and capital expenditures, respectively, in a static and dynamic context for a sample of Indian firms.

Dynamic Model of a Wind-Driven Lift Pump

1996 ◽  
Vol 210 (4) ◽  
pp. 279-293 ◽  
Author(s):  
J D Burton ◽  
D G Davies
Keyword(s):  
Experimental Data ◽  
Dynamic Model ◽  
Wind Power ◽  
Remote Areas ◽  
Dynamic Factors ◽  
The World ◽  
Water Pumps

This paper examines the dynamics of one of the oldest pieces of equipment known to mankind, the simple lift pump. These continue to be used in remote areas of the world for lifting water by hand or using wind power. In the case of the smaller modern wind-powered water pumps the speed of operation is such that dynamic factors need to be taken into account when designing the pump. The paper explores the value of introducing softness and elasticity into either the lift rod or the riser support. Output from models describing the pump dynamics are compared with experimental data.

Development and Validation of a Physics-Based, Dynamic Model of a Gas Turbine

2013 ◽  
Author(s):  
Ashley P. Wiese ◽  
Matthew J. Blom ◽  
Michael J. Brear ◽  
Chris Manzie ◽  
Anthony Kitchener
Keyword(s):  
Steady State ◽  
Gas Turbine ◽  
Dynamic Model ◽  
Test Data ◽  
Thermal Inertia ◽  
Static Model ◽  
Dynamic Effects ◽  
Short Period ◽  
Development And Validation ◽  
State Error

This paper presents and validates a physics-based, dynamic model of a gas turbine. The model is an extension of that proposed by Badmus et al. [1], such that representation of a complete gas turbine is achieved. It includes new models of several gas turbine components, in particular the turbine and compressor, and also applies a well known method for prescribing boundary conditions [10] to the gas path. This model first uses data from a previously published, static model of the same gas turbine to determine this dynamic model’s many so-called ‘forcing terms’. A least-squares optimisation is then undertaken to estimate the shaft inertia and the thermal inertia of system components using transient test data. Importantly, these optimised results are all close to physically reasonable estimates. Further, they show that the shaft dynamics are only significant for a short period at the start of most transients, after which the dynamic effects of thermal storage are dominant. The complete gas turbine model is then validated against transient test data. Whilst the simulated traces demonstrate some steady-state error arising from the static model [12], the overall system dynamics appear to be captured well. Since steady-state error can be integrated out in a control system, this suggests that the proposed dynamic model is appropriate for use in a model-based, gas turbine controller.

Adaptation to the International Pollutant Control in Dynamic Framework

2013 ◽  
Vol 739 ◽  
pp. 361-364
Author(s):  
Xian Jiao Lv ◽  
Xiao Yan Zou
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Nash Equilibrium ◽  
Dynamic Model ◽  
Optimal Trajectory ◽  
Static Model ◽  
Control Problems ◽  
Global Optimality ◽  
Dynamic Framework

Most analysis of global warming are seldom analyses the countries adaptability to the climate change but may have an impact on the strategy of tackling global worming. Even if considered the influence, just works with the simple static model and not the dynamic model to analyze. This study is considering adaptation that is crucial for the analysis of the pollutant control problems in the dynamic framework. We show that the optimal trajectory and stock in the global optimality and Nash equilibrium respectively.

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