The technique could be superior to conventional X-rays, and may constitute major progress in tumor therapy. Furthermore, three-dimensional tumor treatment will be possible.doi:10.1007/978-1-4613-9856-1_26J. ZellwegerG. VécseyI. Horvath
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展开后：2sin(x+π/4)sin(x-π/4)=(sinx)^2-(cosx)^2=-cos2x f(x)=√3sin2x-cos2x=2[(√3/2)sin2x-(1/2)cos2x]=2sin(2x-π/6)最小正周期T=2π/2=π 2x-π/6=2kπ+π/2 ,(k∈z)x=kπ+π/3,(k∈z)时f(x)取最大值 ...
∫（1+y²）dx+xydy=∫∫(2y-y)dxdy=∫∫ydxdy=(1/2)∫y²|(sinx,2sinx)dx=(1/2)∫(4sin²x-sin²x)dx=(3/2)∫six²xdx=(3/2)[x/2-(1/4)sin2x]|(0,π)=(3/4)x|(o,π)-(3/8)sin2x|(o,π)=（3π）/4。
dG(N2-H).is directly observed upon nanosecond laser flash photolysis (LFP) of 1. The absorption spectrum of dG(N2-H).is corroborated by DFT studies, and anti- and syn-dG(N2-H).are resolved for the first time. The LFP experiments showed no evidence for tautomerization of dG(N2-H).to...
w81x A.V. Borodavkin, V.O. Chekhov, Y.S. Dolin, Y.V. Morozov, D.Y. Yakovlev, F.A. Savin, E.I. Budowsky, Absorption UV spectroscopy and electronic structure of ionic and tautomeric forms of hydroxy and methoxy derivatives of cytosine and adenine, and some 5-substituted analogs of ...