Search results for "Exchange"
showing 10 items of 2035 documents
Investigation of flow and heat transfer in corrugated passages—I. Experimental results
1996
Abstract An experimental and numerical study of flow and heat transfer was conducted for a crossed-corrugated geometry, representative of compact heat exchangers including air preheaters for fossil-fuelled power plant. In this paper, we describe the method of applying thermochromic liquid crystals and true-colour image processing to give local Nusselt number distribution over the surface, and average Nu, both of quantitative reliability; a careful uncertainty analysis is also presented. Typical experimental results for heat transfer and pressure drop are presented and discussed for various geometries and Reynolds numbers, and are compared with literature data. Numerical predictions are disc…
Enhancement of heat exchanger thermal hydraulic performance using aluminum foam
2018
Abstract This paper deals with an experimental study of a turbulent forced convection in a rectangular channel partly fitted with aluminum metallic foam blocks. Experiments were carried out on samples having a constant porosity of 93.8%, different grades of 5, 20 and 40 PPI, and three different height ratios of 0.6, 0.8 and 1. The blocks were arranged in a baffle like configuration. A constant heat flux of 2 W/cm2 was applied on the bottom wall of the test section, while air velocity was varied from 1 to 5 m·s−1. Temperatures of the wall along the flow direction as well as those of the inlet and outlet sections have been measured. Additionally, pressure drop measurements across the aluminum…
Chinese OFDI in Europe under the Guidance of BRI — A Focus on China–CEE Economic Relations
2018
China has been actively integrating itself in the global economy through Foreign Direct Investment (FDI) and increasing trade flows. In order to further expand its foreign market ambition and reinforce itself as a leader in the world economic system, China unleashed the Belt and Road Initiative (BRI). One of the main economic incentives behind this initiative is to strengthen China’s integration with Central and Eastern European (CEE) markets. In recent years, an emerging trend for Chinese investors to invest in CEE countries such as Poland can be observed. The aim of this research is to analyze the changing patterns and motives of Chinese Outbound FDI (OFDI) to Europe during the period of…
Converging paths to Notes
1995
The nature of the information systems needed in a networked firm is not well known: nor is the process leading to particular solutions. Describes a small computer‐consulting company which works as a network of independent consultants, and analyses the slow and circuitous path from recognizing its IS/IT needs to its commitment to a particular solution as seven steps; using ideas of structuration theory as a focus. During the selection process, participants formed new interpretations of the firm, of technology, and of the appropriate process towards a feasible solution. New resources – both material and symbolic – were acquired to enable the search. Existing “norms” provided boundaries for th…
Special Section on ITS Services to Smart City Context [Guest Editorial]
2018
The seven articles in this special section focus on new trends and developments in the intelligent transportation markets. Since the earliest of times, transportation has changed and revolutionized society and industry. Many of technology advances were focused on transportation and their means (road, rail, air, water, etc.) even, today there exist several areas of the knowledge that are focused on it. As time goes by, new terms have been established where technology is present as well, for instance, Intelligent Transportation Systems (ITS), Smart Cities, Smart Territory, Blockchain, Internet of Things, virtualization, Cloud computing, Intelligent Vehicles, embedded computing, Deep learning,…
[The in vitro effect of the addition of ion exchange resins on the bioavailability of electrolytes in artificial enteral feeding formulas].
2008
Objective: To determine in vitro free ion concentration in 3 standard artificial enteral feeding formulas following the addition of ion exchange resins. Method: Three standard types of AEF were chosen: Osmolite HN®, Nutrison Standard®, and Isosource Standard®. The ion exchange resins used were: sodium polystyrene sulfonate and calcium polystyrene sulfonate. In a beaker were mixed 100 mL of AEF with 1.5 g or 3 g of ion exchange resins for 48 hours at 37oC. Subsequently, the samples were precipitated and the supernatant obtained was used for determining the concentrations of calcium, magnesium, sodium, and potassium ions. Results: The addition of sodium polystyrene sulfonate to different type…
Determining the RMB Exchange Regime
2011
Although China has claimed since 2005 that it will move towards a more market-oriented system of managing its foreign exchange, it has remained, in part, a managed economic system. This chapter examines the relative importance of fundamentalist, chartist and currency arrangements in determining the RMB exchange regime using both traditional linear and non-linear artificial intelligence models. We find that the emphasis on the US dollar as a reference currency has declined. Fundamentalist forces are becoming strong determinants of the currency exchange. The genetic programming approach is among the best performing in minimizing forecasting error.
On the Internationalization of Corporate Boards
2013
Despite the global reach of their commercial activities, many multinational firms have proved slow in internationalizing their boards of directors. Based on a panel study of the internationalization of the boards of 347 non-financial firms from the Nordic countries, we find a higher fraction of international board membership in firms with more foreign sales, in firms with more foreign ownership and in firms whose shares are traded on foreign (mostly European) stock exchanges. Moreover, we find international directors and national directors with international experience complementary. The first-mentioned group is found to serve a monitoring role, related to financial internationalization of …
Effects of wave function correlations on scaling violation in quasi-free electron scattering
1981
Abstract The scaling law in quasi-free electron scattering is broken due to the existence of exchange forces, leading to a finite mean value of the scaling variable y . This effect is considerably increased by wave function correlations, in particular by tensor correlations, similar to the case of the photonuclear enhancement factor κ.
Methanol fuel processor and PEM fuel cell modeling for mobile application
2010
International audience; The use of hydrocarbon fed fuel cell systems including a fuel processor can be an entry market for this emerging technology avoiding the problem of hydrogen infrastructure. This article presents a 1 kW low temperature PEM fuel cell system with fuel processor, the system is fueled by a mixture of methanol and water that is converted into hydrogen rich gas using a steam reformer. A complete system model including a fluidic fuel processor model containing evaporation, steam reformer, hydrogen filter, combustion, as well as a multi-domain fuel cell model is introduced. Experiments are performed with an IDATECH FCS1200™ fuel cell system. The results of modeling and experi…