نتایج جستجو برای: during the last one hundred years
تعداد نتایج: 16377570 فیلتر نتایج به سال:
Acetylsalicylic acid was synthesized by Gerhardt in 1853 and even put on the market during the 1880s by the firm Merck.1 Yet the proper history of this medicine begins only in 1897, now more than a hundred years ago, when this miracle amongst medicines was again synthesized at the dyestuffs factory of Friedrich Bayer and the chemical factory of Friedrich von Heyden. About eighteen months later ...
JUST OVER A century ago, Daniel Maclachlan, Physician to the Royal Hospital, Chelsea, published his book The Diseases and Infirmities of Advanced Life. This was based on his extensive experience among the Chelsea pensioners as well as patients seen in private practice. He begins by stating 'the diseases of advanced and declining life have been comparatively neglected ... they have nowhere recei...
I n this issue of OEM, an article by Tim Carter documents the experience of cutaneous, pulmonary, and abdominal anthrax among wool sorters and others in a rural town (Kidderminster, Worcestershire) in the UK in the early twentieth century. At the start of the twenty first century anthrax was an esoteric topic of study, mostly for those interested in zoonoses. This position changed radically fol...
run-out-table (rot) is located between last finishing stand and down coiler in a hot strip mill. as the hot steel strip passes from rot, water jets impact on it from top and bottom and strip temperature decreases approximately from 800-950 °c to 500-750°c. the temperature history that strip experience while passing through rot affects significantly the metallurgical and mechanical properties, s...
abstract abstract of thesis (includes summary, goals, execution methods, and results) story “al-obnosat al-bayza” is one of the short stories from “hanna mineh” collection. this story is a selection of lives of some humans during a voyage together, each of them is a symbol of human nature (love, mind, kindness) and examine social, cultural, and political aspects of governing system, and it...
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