نتایج جستجو برای: 250 microlitre of 6
تعداد نتایج: 21289554 فیلتر نتایج به سال:
We demonstrate an Yb:YAG single-crystal fiber laser with 251 W output power in continuous-wave and an optical efficiency of 44%. This performance can be explained by the high overlap between pump and signal beams brought by the pump guiding and by the good thermal management provided by the single-crystal fiber geometry. The oscillator performance with a reflectivity of the output coupler as lo...
(in this model) is considered as a system of deterministic algorithms A1, . . . , An and a stochastic process (probability distribution) that switches performance from one algorithm from the list to another according to a given schema. This is, for example, how the operating system of a computer functions. An interesting property of randomized algorithms is that it is possible to consider them ...
The number of male cases of non-gonococcal urethritis (NGU) treated in the clinics of England and Wales continues to rise steadily each year, and have done so ever since figures were first published in 1951. The cause of the condition remains undiscovered and a variety of antibiotics, including the tetracyclines, spiramycin, erythromycin, and streptomycin (in conjunction with sulphonamides), ma...
some new water-soluble schiff base complexes of na2[m(5-so3-1,2-salophen)].nh2o; (5-so3-1,2-salophen = n,n’-bis(5-sulphosalicyliden)-1,2-phenylendiamine); na2[m(5-so3-2,3-salpyr)(h2o)n].2h2o; (5-so3-2,3-salpyr = n,n’-bis(5-sulphosalicyliden)-2,3-diaminopyridine); and na2[m(5-so3-3,4-salbenz)(h2o)n].nh2o; (5-so3-3,4-salbenz = n,n’-bis(5-sulphosalicyliden)-3,4-diaminobenzophenon); where m = cu, n...
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