Exploitation strategy

This geothermal system is now regarded has a heat mine, from which the heat is recovered by means of an artificial water flow. The exploitation strategy is therefore progressively moving from a strategy typical of hydrothermal systems to one typical of hot-dry-rock (HDR) systems. An HDR system is any system where injection is necessary to extract the heat at a commercial rate for a prolonged period (Baldeyrou-Bailly et al, 2004). 

Bareli.1, A., Cappetti, G. Stei-ani, G. 1995. Optimum exploitation strategy at Larderello-... 

An interesting, but little-exploited, strategy is to use a regular thickness gradient created by patterned substrates in order to achieve complex sequenced microphase-separated structures within macroscopic topographic patterns [55, 56],... 

Lewis, R.B. "Mississippian Exploitative Strategies A Southeast Missouri Example" Univ. Missouri Columbia, MO, 1974 pp. 17-28. 

Making a fair comparison between two or more optimization algorithms can be hard due to several reasons one of them is the initial set of parameters, which plays an important role in the performance of the algorithm the number of iterations and their overall characteristics that make the algorithms different from each other (e.g. selection pressure, replacement criteria, update of certain parameters, domain exploration/exploitation strategies, etc.). 

The in situ generation of nitrile oxides 119 and subsequent intra- or intermolecular 1,3-dipoIar cycloaddition reactions with alkenes and alkynes represent one of the most exploited strategies for the preparation of diverse isoxazoline 121 and isoxazole 120 derivatives. Ciufolini et al. [89] reported that PIDA in combination with a substoichiometric amount of TFA efficiently oxidize aldoximes 118 to nitrile oxides 119, which were trapped in situ with olefins to afford... 

Third, most therapies rely on administering the maximal tolerated dose. Use of nanomedidne to estimate the tumor load and drug dosage proportional to the tumor size—a strategy reported by Maeda and coworkers with SMANCS ((poly-styrene-co-maleic acid-half-butyrate) neocarzinostatin)—as larger tumors require more drug, is a not frequently exploited strategy [188]. 

Photocycloaddition involving functionalized cyclobutenes, followed by thermolysis of the intermediate fused cyclobutane adduct, is a much exploited strategy in the elaboration of fused six-ring terpenoids. Further illustrations of the scope provided by this strategy have emerged this year (Scheme and Vandewalle and his co-workers have given a further illustration of the use of photoadducts from the bis-trimethylsilyl ether (20) in synthesis. 

Zheng BS, Yan LR, Mao DJ, Thornton I (1993) The Se resource in southwestern Hubei province, China, and its exploitation strategy (in Chinese). J Nat Resour 8 204-212... 

But in the recent years, a good number of reports on different starting material and reagent combinations under a variety of reaction conditions have appeared [17-20]. Retrosynthesis of benzimidazole and quinoxaline offers us with myriads of approaches, out of which fhe most exploited strategies have been outlined in Schemes 1 and 2, respectively. 

Strategies for aehieving intra- and intennoleeular seleetivity are the subjeet of a very aetive field of eurrent researeh with many open questions. Under the label eoherent eontrol it ineludes approaehes that exploit the eoherenee properties of laser radiation to eontrol ehemieal reaetions. Figure B2.5.18 suimnarizes the different sehemes of intra- and intennoleeular seleetivity. 

It is a general observation that herbicide degradation occurs more readily ia cultivated than fallow sod, suggesting that rhizosphere organisms are effective herbicide degraders. Whether this can be effectively exploited ia a phytoremediatioa strategy remains to be seea. 

Detailed reaction dynamics not only require that reagents be simple but also that these remain isolated from random external perturbations. Theory can accommodate that condition easily. Experiments have used one of three strategies. (/) Molecules ia a gas at low pressure can be taken to be isolated for the short time between coUisions. Unimolecular reactions such as photodissociation or isomerization iaduced by photon absorption can sometimes be studied between coUisions. (2) Molecular beams can be produced so that motion is not random. Molecules have a nonzero velocity ia one direction and almost zero velocity ia perpendicular directions. Not only does this reduce coUisions, it also aUows bimolecular iateractions to be studied ia intersecting beams and iacreases the detail with which unimolecular processes that can be studied, because beams facUitate dozens of refined measurement techniques. (J) Means have been found to trap molecules, isolate them, and keep them motionless at a predetermined position ia space (11). Thus far, effort has been directed toward just manipulating the molecules, but the future is bright for exploiting the isolated molecules for kinetic and dynamic studies. 

Electroanalytical chemistry is one of the areas where advantage of the unique properties of SAMs is clear, and where excellent advanced analytical strategies can be utilized, especially when coupled with more complex SAM architectures. There are a number of examples where redox reactions are used to detect biomaterials (357,358), and where guest—host chemistry has been used to exploit specific interactions (356,359). Ion-selective electrodes are an apphcation where SAMs may provide new technologies. Selectivity to divalent cations such as Cu " but not to trivalent ions such as Fe " has been demonstrated (360). 

In most cases the prolonged treatment of a closo carborane or borane with strong base results in the removal of a single-boron vertex to yield a nido cluster, inert to further degradation. This principle is exploited in the polyhedral contraction and subrogation synthetic strategies. In the prototypical case. 

Much of the new thinking on strategy has centered on advanced technology and the exploitation of the computer, but the following recommendations, requiring minimum investment in new plant, should be considered first ... 

---