نتایج جستجو برای: spectrum lines

تعداد نتایج: 433909  

Journal: :Photonics 2022

Optical spectrum analysis is the most direct and effective method for characterizing electro-optic modulation spectra. According to Rayleigh criterion, best resolution of an optical limited by point spread function analyzer (OSA) relative intensity closely spaced spectral lines. In this paper, we propose a boosted iterative deconvolution (BID) resolve intrinsic lines from measured carrier our s...

Journal: :Journal of molecular spectroscopy 2001
Naus Ubachs Levelt Polyansky Zobov Tennyson

The method of pulsed cavity-ring-down spectroscopy was employed to record the water vapor absorption spectrum in the wavelength range 555-604 nm. The spectrum consists of 1830 lines, calibrated against the iodine standard with an accuracy of 0.01 cm(-1); 800 of these lines are not obtained in the HITRAN 96 database, while 243 are not included in the newly recorded Fourier transform spectrum of ...

2005
D. F. JONES

many characteristic furnace lines which the spark emits very faintly. An outstanding feature of these lines for the iron spectrum is a prevailing large separation and simple triplet structure. Lines of this class are often of special interest in the study of sun-spot spectra. The furnace offers unique facilities for the production of the inverse Zeeman effect when a plug is placed in the tube. ...

2017
Fengfeng Fan Nengwu Li Yunping Chen Xingdan Liu Heng Sun Jie Wang Guangcun He Yingguo Zhu Shaoqing Li

Hybrid rice has contributed significantly to the world food security. Breeding of elite high-yield, strong-resistant broad-spectrum restorer line is an important strategy for hybrid rice in commercial breeding programs. Here, we developed three elite brown planthopper (BPH)-resistant wide-spectrum restorer lines by pyramiding big-panicle gene Gn8.1, BPH-resistant genes Bph6 and Bph9, fertility ...

2017
L. E. Ellerbroek L. Kaper A. Bik A. de Koter M. Horrobin E. Puga

We present observations of the embedded massive young stellar object (YSO) candidate 08576nr292, obtained with X-shooter and SINFONI on the ESO Very Large Telescope (VLT). The flux-calibrated, medium-resolution X-shooter spectrum (300 – 2500 nm) includes over 370 emission lines, but no (photospheric) absorption lines and is consistent with a reddened disk spectrum. Among the emission lines are ...

2008
Hu Zhan Daniel Eisenstein

We analyse the covariance of the one-dimensional mass power spectrum along lines of sight. The covariance reveals the correlation between different modes of fluctuations in the cosmic density field and gives the sample variance error for measurements of the mass power spectrum. For Gaussian random fields, the covariance matrix is diagonal. As expected, the variance of the measured one-dimension...

Journal: :Journal of Physics B: Atomic and Molecular Physics 1984

Journal: :Journal of Physics: Conference Series 2017

Journal: :International Astronomical Union Colloquium 1983

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