Progress of Electrical Invention

A history of technology and invention. Progress through the ages

and shows that there are no insuperable philosophical problems in postulating a naturalistic, causal mode of social analysis which transcends the limited explanatory power of mere common sense, and the anti-causal view that all that can be offered are rule-obeying descriptions of actors' meanings of their performances. One significant distinction between the social and natural sciences, Thomas ...

Electrical Feedthrough and Its Preparation Background of the Invention

3,385,618 5/1968 Hargis. 3,901,772 8/1975 Guillotin et al. . 4,174,145 11/1979 Oeschger et al. 4,176,901 12/1979 Ishimaru 4,217,137 8/1980 Kraska et al. 4,461,925 7/1984 Bowsky et al. 4,645,931 2/1987 Gordon et al. 5,057,048 10/1991 Feuersanger et al. 174/152 GM 174/152 GM 174/152 GM 174/152 GM 250/332 445/44 5,086,773 5,087,416 5,198,671 5,368,220 2/1992 Ware 128/419 P 2/1992 Mizuhara 420/489 ...

Electrical Feedthrough and Its Preparation Background of the Invention

3,385,618 5/1968 Hargis. 3,901,772 8/1975 Guillotin et al. . 4,174,145 11/1979 Oeschger et al. 4,176,901 12/1979 Ishimaru 4,217,137 8/1980 Kraska et al. 4,461,925 7/1984 Bowsky et al. 4,645,931 2/1987 Gordon et al. 5,057,048 10/1991 Feuersanger et al. 174/152 GM 174/152 GM 174/152 GM 174/152 GM 250/332 445/44 5,086,773 5,087,416 5,198,671 5,368,220 2/1992 Ware 128/419 P 2/1992 Mizuhara 420/489 ...

Recent progress in electrical impedance tomography

We consider the inverse problem of finding cavities within some body from electrostatic measurements on the boundary. By a cavity we understand any object with a different electrical conductivity than the background material of the body. We survey two algorithms for solving this inverse problem, namely the factorization method and a MUSIC-type algorithm. In particular, we present a number of nu...

the invention of capitalism