Prospective systems

The Kagome lattice structure clearly explains the non-symmetric nature of the band structure of the C0O2 layer. When the effect of the Kagome lattice becomes dominant, the bottom band, i.e., the flat band as shown in Fig, 3(a) will play a crucial role on the electronic state. Mielke [32] has shown that the flat band with the Coulomb interaction has the ferromagnetic ground state at around half filling. A prospective system for the ferromagnet will be dl transition metal oxides, i.e., the layered titanates with iso-structure of the cobalt oxides. 

As the prospective systems for spintronics, two-dimensional semiconducting electron structures where electrons are localized in the -direction and free in the lateral ones, are assumed. High mobilities of electrons (n > I (P cm2/(Vs)) achievable there make the electron transport easy. In order to discuss the possible effects of SO coupling we will consider three types of structures shown in Fig.l. In these structures, the electron states are extended along... 

In view of the many properties and parameters that affect PSA performance, it is possible to characterize the adsorbates and adsorbent for a prospective system in either very simple or very complex terms. The simplest version requires only information regarding the adsorption isotherms and adsorbent void fraction. In the case of linear isotherms, the properties can be combined as in Equation (14.6),... 

The PROTEM plus 67 transient electromagnetic prospecting system made in Canada was adopted to carry out the detection in the research area on ground. 

Evaluation of prospective systems The evaluation process is vital as it matches the laboratory requirements with those on offer from the suppliers. Unlike many other types of laboratory automation the full benefit from a system should not be expected until several months after the system has been introduced into the laboratory. This time lag means the impact of a wrong decision is much greater because much time, effort, and money have been expended. Therefore, the need to make the right decision the first time is very important. 

Prospective System Bioelectridty From Rice Husk... 

The Mekong river delta is selected as the study site for the prospective system as it is the largest area for the cultivation of rice in Vietnam, with more than 50% of rice yield, and a rice production yield of 24.29 rmUion tonnes in 2012 [37]. Because of high production yield, the amount of rice husk is therefore large, which makes this area technically suitable for constructing a bioelectricity plant with rice husk as raw material. 

Technical Characteristics (Reference System) (Prospective System)... 

There are two product systems compared here the reference system (coal-fired electricity) and the prospective system (rice husk-based bioelectricity). 

Both systems are assessed from cradle to gate on three aspects of sustainability (Fig. 14.2) and for specific boundaries for reference and prospective systems (Figs. 14.3 and 14.4). The system boundaries are slightly different for three piUars of sustainabihty. For the environmental impacts, the study excludes impacts from the production of capital goods, which are typical to any previous LCA studies conducted because of its added complexity when coUecting data. Nevertheless, the economic and social impacts are assessed on an economy-wide scale, which includes aU sectors directly or indirectly related to the electricity generation process. 

Similarly, data for the prospective system—rice husk-based bioelectricity—are taken from the Ecoinvent database and Hterature [45,47,51—57], in combination with calculations based on emission factors of rice husk burning for energy purposes in Vietnam [39], the IPCC Guidelines for National Greenhouse Gas Inventories,... 

Figure 14.4 Diagram of unit processes and data for the prospective system. HFO, Heavy fuel oil.

The prospective systems were recently reviewed and summarized by Alyapyshev et al. (2008). These, as noted above, might be considered as conceptual technological systems for the extraction of trivalent actinides withont extracting weight amounts of lanthanides, UNEX B processes. No snch process was as yet apparently tried in the countercurrent line. 

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