نتایج جستجو برای: ایزومرهای z و e
تعداد نتایج: 1891531 فیلتر نتایج به سال:
Face recognition is important in human identification. The biological recognition technique acts as a good method and broad applications in security areas. This work presents a method to improve the face recognition accuracy using a combination of Principal Component Analysis (PCA), and Wavelet Transform. Wavelet Transform is used to decompose the input image with different levels and rearrange...
We have measured the mass of the 2 boson to be 91.14f0.12 GeV/c2, and its width to be 2.42ti.f: GeV. If we constrain the visible width to its Standard Model value, we find the partial width to invisible decay modes to be 0.46 f 0.10 GeV, corresponding to 2.8 3~0.6 neutrino species, with a 95% confidence level upper limit of 3.9. c W e present an improved measurement of the 2 boson resonance par...
The measurement of the invisible Z-boson decay width at ee colliders can be done “indirectly,” by subtracting the Z-boson visible partial widths from the Z-boson total width, or “directly,” from the process ee → γνν̄. Both procedures are sensitive to different types of new physics and provide information about the couplings of the neutrinos to the Z-boson. At present, measurements at LEP and CHA...
in this paper, using the best proximity theorems for an extensionof brosowski's theorem. we obtain other results on farthest points. finally, wede ne the concept of e- farthest points. we shall prove interesting relationshipbetween the -best approximation and the e-farthest points in normed linearspaces (x; ||.||). if z in w is a e-farthest point from an x in x, then z is also a-best ...
The properties of the Z' particle are studied with hadronic events taken by the L3 detector at LEP. 14,352 events at ten different center of mass energies are used to calculate the hadronic cross section. From a fit to the Z0 resonance line shape, the Z0 mass, total width, and the hadronic cross section are measured to be Mz = 91.14 0.025(experiment) 0.030(LEP) GeV, I7z = 2.529 0.053 GeV and Ch...
GENERAL METHODS S4 SYNTHESIS OF SUBSTRATES S4-S6 Synthesis of (Z)and (E)-1-cyclohexyl-1,3-butadiene (8) Typical procedure for the synthesis of (Z)and (E)-1,3-dienes (Z)and (E)-1-Benzylbuta-1,3-diene (18) (Z)and (E)-1-(2-Furyl)-1,3-butadiene (21) (Z)and (E)-1-(4-Butyl-1-cyclohexyl)-1,3-butadiene (22) SYNTHESIS OF COBALT COMPLEXES S7 CHEMOSELECTIVE ASYMMETRIC HYDROVINYLATIONS S7 Asymmetric hydrov...
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چکیده در این پروژه با عنوان "یک توزیع سه پارامتری جدید برای طول عمر" که ترکیبی از توزیع های نمایی تعمیم یافته و هندسی است، معرفی می شود. این توزیع قابل انعطاف دارای نرخ شکست صعودی، نزولی و صعودی-نزولی می باشد. در این مجموعه،ویژگی های گوناگون این توزیع معرفی شده مورد بحث و بررسی قرار می گیرد. با استفاده از الگوریتم em و برآوردگرهای ماکسیمم درستنمایی، پارامترها را برآورد کرده، به منظور ارزیابی...
صخلملا Infertility affects 15% of couples seeking children worldwide and male factor is evident in about 30-50% of the cases. To assess the effect of sperm chromatin integrity on the outcomes of intracytoplasmic injection, sperm DNA compactness was evaluated by acridine orange staining in 40 fertile and 44 infertile men attending one infertility clinic. The results showed no significant differe...
صخلملا The search for novel anticancer drugs continues. This work includes a preliminary study of the effect of two crude extracts of Greek or Mediterranean sage (Salvia triloba L. f.) on three malignant human cell lines and one malignant murine cell line. A boiling water extract and a methanolic extract were prepared from dried leaves of S. triloba. Yields of extraction were 9.8 and 22.4%, res...
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