Xem 1-20 trên 99 kết quả Number flows
  • This book reports the latest development and trends in the low Re number aerodynamics, transition from laminar to turbulence, unsteady low Reynolds number flows, experimental studies, numerical transition modelling, control of low Re number flows, and MAV wing aerodynamics. This book focuses particularly on: (1) a review and brief information study on low Reynolds number flows and transition as an introduction to low Re number aerodynamics (Chapter 1), (2) transition modelling (Chapters 2-4), flow control (Chapters 5-7).

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  • In our recent book, Free Cash Flow and Shareholder Yield: New Priorities for the Global Investor (John Wiley & Sons, 2007), we offered a comprehensive introduction to the opportunities and challenges inherent in today’s equity markets. By looking beyond the many obfuscations of traditional generally accepted accounting principles (GAAP) accounting, we endeavored to provide the informed investor with the tools necessary to navigate a changing investment landscape.

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  • What are we dealing with: (gas – air) high speed flow – Mach Number 0.3 Perfect gas law applied – expression for pressure field Need some thermodynamic concepts, eg, enthalpy, entropy, etc

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  • Tham khảo sách 'volume 102, number 6, november–december 1997journal of research of the national institute', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • The analysis of blood, bone marrow and tissue fluid specimens requires a multi–faceted approach with the integration of scientific data from a number of disciplines. No single discipline can operate in isolation or errors will occur. Flow cytometry is in a privileged position in that it can provide rapid analysis of specimens and it is often the first definitive investigation to produce results and help formulate a working diagnosis.

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  • The 1980s and 1990s have been critical periods for Thailand’s development. After an initial period of instability in the early 1980s, Thailand’s economy expanded at an average pace of 9 percent p.a. during 1987–96, while the number of households below the poverty line dropped from 32.6 percent in 1988 to 16.3 percent in 1996. During this period, Thailand’s economy also underwent deep structural changes, including the liberalization of its financial sector and the integration of its economy with global financial and product markets.

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  • The last two decades have witnessed an extensive growth in foreign direct investment (FDI) flows to developing countries. This has been accompanied by an increase in competition amongst the developing countries to attract FDI, resulting in a rise in investment incentives offered by the host governments and removal of restrictions on operations of foreign firms in their countries. This has also led to an ever-increasing number of bilateral investment treaties (BITs) and regional agreements on...

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  • Soil mechanics involves a combination of engineering mechanics and the properties of soils. This description is broad and can encompass a wide range of soil types. These soils could either be saturated with water or have other fluids in the voids (e.g., air). The development of classical soil mechanics has led to an emphasis on particular types of soils. The common soil types are saturated sands, silts and clays, and dry sands. These materials have been the emphasis in soil mechanics textbooks.

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  • Fractures are ubiquitous in the brittle lithosphere in the upper part of earth’s crust. They play a critical role in the transport of fluids. Moreover, all major discovered geothermal reservoirs and a considerable number of petroleum reservoirs are in fractured rocks. This restates the importance of studying multiphase flow behavior inside the opened fracture space. From the engineering point of view, a rock fracture as defined here is simply a complex-shaped cavity filled with fluids or solid minerals. Therefore it is understood to include cracks, joints, and faults.

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  • Structural Testing is used to verify the static strength, or fatigue strength of a component by applying measured loads to the test item. Testing can be done to failure, to contractual requirements or to validate finite element model predictions. DTB has successfully completed thousands of structural tests on items ranging in size and complexity from simple coupons to entire aircraft. Fatigue Testing is carried out with the objective of determining the relationship between the stress range and the number of times it can be applied before causing failure....

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  • The first edition of Handbook of MRI Technique was a resounding success. The rapidly increasing number of radiographers and technologists entering the modality, coupled with the development of education and training courses worldwide, has resulted in an increased demand for MRI books of any shape and size. The education of radiographers, technologists and radiologists often lags behind the rapid technological advances in MR.

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  • Since its first implementation by Lauterbur [1], Magnetic Resonance Imaging (MRI) has become an important noninvasive imaging modality. MRI has found a number of applications in the fields of biology, engineering, and material science. Because it provides unique contrast between soft tissues (which is generally superior to that of CT) and high spatial resolution, MRI has revolutionized diagnostic imaging in medical science. An important advantage of diagnostic MRI as compared to CT is that the former does not use ionizing radiation....

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  • The centrifugal pumps with the actual configuration constitute a machine widely used for more than 150 years. The pumps are analyzed and examined in detail, a lot of experience from the design, construction and application of centrifugal pumps is accumulated worldwide but still there is an endless number of topics that need supplementary examination, mainly of topics arising from the interaction between the pump and the pumping installation.

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  • I and my fellow Board members at the International Accounting Standards Board (IASB) are committed to developing high quality, understandable, and enforceable global accounting standards that meet the demands for comparable and transparent information in the world’s capital markets. Recently we completed a work program to develop and issue a stable platform of such standards. Those standards, the International Financial Reporting Standards (IFRS), are now being implemented in a large number of countries around the world.

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  • In 2001 I was contacted by a consortium of research institutions and wind energy interests with a request to provide some background information on the operational characteristics of acoustic radars or SODARs. The consortium partners had set up and been funded for an European EU project to evaluate SODARs as a tool in monitoring wind flows at wind turbine sites. They felt reasonably confident in their knowledge of SODARs and had purchased some instruments, but wanted to be able to consult on any more complex issues which arose.

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  • This standard is issued under the fixed designation C 230/C 230M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

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  • The present edition has been updated in a number of renewable energy technology areas (Chapter 4 and 5), where progress have been made over the recent years. New solar simulation studies have been added to Chapter 6, and market considerations have been included in the overview in Chapter 1, and in discussing industry liberalisation in Chapter 7. The remarks on advanced subjects made in the preface to the 2nd edition are still valid. A new growth area is fuel cells for stationary and mobile uses of hydrogen and other fuels.

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  • THE FINANCIAL NUMBERS GAME been reported in the investing section of the cash-flow statement, operating cash flow in 1999 would have been $11.7 billion, or 16% higher than the $10.1 billion reported. Excluded from this discussion of the tax effects of the gain on sale is the fact that operating cash flow for the years 1997, 1998, and 1999 actually include the cash provided by operations of the divested unit. The amount of operating cash flow generated by that company prior to its disposal was not disclosed in the IBM annual report. In the absence of such a disclosure, calculating it...

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  • The purpose of this book is to introduce researchers and graduate students to a broad range of applications of computational simulations, with a particular emphasis on those involving computational fluid dynamics (CFD) simulations. The book is divided into three parts: Part I covers some basic research topics and development in numerical algorithms for CFD simulations, including Reynolds stress transport modeling, central difference schemes for convection-diffusion equations, and flow simulations involving simple geometries such as a flat plate or a vertical channel....

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  • In the past several years, South Africa has taken a number of steps, such as budget-deficit reduction and adoption of a more flexible exchange rate regime, that have helped reduce its vulnerability to adverse external shocks. In addition, the SARB has made considerable strides in reducing the net open forward position (NOFP), which has represented a major source of external vulnerability, has been lowered significantly. The NOFP, however, remains relatively large.

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