Foerster

The next phase which resulted in the worldwide acceptance of eddy current technology for testing metals was the work of Dr Friedrich Foerster. Dr Foerster, a modem Giant, has rightly been called the father of modern eddy current testing (Ref 5). His early work was driven by the priorities of the Second World War, after which he embarked upon major research and... 

Since we did not know that we were in NDT we were unaware of others in the field and felt it to be a rather new field, we felt like explorers For us it was new and we carried on for some time blissfully unaware that Prof. Hughes had demonstrated the effect almost 100 years before and Foerster had solved most of the practical problems more than a decade earlier. We only gradually became aware that we were not alone. 

In 1888, Foerster (91), reproducing the same reaction with dianisyl-thiourea, demonstrated that the compound he obtained (59) could lose a sulfur atom by reduction with tin and hydrochloric acid to form a product analogous to N-phenylpiperidine (60). 

Airth, R. L., and Foerster, G. E. (1960). Some aspects of fungal bioluminescence./. Cell. Comp. Physiol. 56 173-182. 

To perform structural research on a food stuff into which a colorant is incorporated, special properties of fluorescing molecules are exploited fluorescence efficiency, fluorescence lifetime, fluorescence quenching, radiationless energy (Foerster) transfer, stationary or time-dependent fluorescence polarization and depolarization." Generally, if food colorants fluoresce, they allow very sensitive investigations which in most cases cannot be surpassed by other methods. 

From the early days of free-radical research (Fenton, 1894 Gombetg, 1900 Haber and Weiss, 1934) to the present interest in the use of antioxidants to circumvent cancer (Ames, 1983 Wilier and MacMahon, 1984 Bal and Foerster, 1991 Block ef a/., 1992 Dorant et al., 1993), the words free radical have continued to capture the imagination of scientists. 

Bal, D.G. and Foerster, S.B. (1991). Changing the American diet. Impact on cancer prevention policy recommendations and program implications for the American Cancer Society. Cancer 67, 2671-2680. 

K. Albert, A. Bruns, H. Foerster, U. Hiller, and U. Kunze, Anqew. Chem.,... 

Murray RM, Lewis SW, Owen MJ and Foerster A (1988). The neurodevelopmental origins of dementia praecox. In P Bebbington and P McGuffin (eds), Schizophrenia The Major Issues (pp. 90-106). Heinemann, Oxford, UK. 

Khandpur AK, Foerster S, Bates FS, Hamley IW, Ryan AJ, Bras W, Almdal K, Mortensen K (1995) Macromolecules 28 8796... 

Foerster, T. (1948). Intermolecular energy migration and fluorescence. Ann. Phys. (Leipzig) 2, 55-75. 

Jiao J, Ranellopoulos J, Wang W, Ray SS, Foerster H, Freude D, Hunger M (2005) Phys Chem Chem Phys 7 3221... 

Clark, D.R., Jr., K.S. Foerster, C.M. Mam, and R.L. Hothem. 1992. Uptake of environmental contaminants by small mammals in pickleweed habitats at San Francisco Bay, California. Arch. Environ. Contam. Toxicol. 22 389-396. 

R. Caspi, H. Foerster, C. A. Fulcher, P. Kaipa, M. Krummenacker, M. Latendresse, S. Paley, S. Y. Rhee, A. G. Shearer, C. Tissier, T. C. Walk, P Zhang, and P D. Karp, The MetaCyc database of metabolic pathways and enzymes and the BioCyc collection of pathway/genome databases. Nucleic Acids Res. 36(Database issue), D623 D631 (2008). 

Photoelectron transfer is usually described by the so-called Foerster s cycle On transformation of a molecule into the excited state, the donor s IP is reduced by the value of the donor s excitation energy, and the acceptor s electron affinity increases by the value of the acceptor s excitation energy. 

Schindler BK, Foerster K, Angerer J (2009a) Determination of human urinary organophosphate flame retardant metabolites by solid-phase extraction and gas chromatography-tandem mass spectrometry. J Chromatogr B 877 375-381... 

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