(1) Nuclear effects produce hyperfine structure.

(2) IOS(infinite order sudden) approximation, the hyperfine collisional transitional rate coefficients of E - type CH3CN - H2 have been calculated under the conditions of interstellar molecular clouds.

(3) The variation of the hyperfine interaction parameters and the variable mechanism of the sky-green glaze at liquid helium temperature is studied.

(4) The observed hyperfine structure spectra are analyzed and the magnetic-dipole hyperfine structure constants A of these levels are obtained by least-squares fits.

(5) The relevant hyperfine parameters as a function of annealing time are shown and the result of experimental study is analyzed and discussed in detail.

(6) The dye of hyperfine fiber synthetic leather was investigated on the basis of dyestuff selection, application of dying auxiliary agents and different dying conditions.

(7) The isotope shifts, hyperfine structure, spontaneous emission branch ratio of the first excited level and Doppler width of the atom vapor beam were measured using laser induced fluorescence.

(8) Hyperfine spectrum; Nonlinear optics; Degenerate four waves mixing; The equivalent grating; Isotope detecting.

(9) These two effects split the atomic energy levels into several components, producing the so-called hyperfine structure.

(10) This article is aimed at introducing the generation principle of fine structure and hyperfine structure of atomic energy level, with its experimental result improved, designed and illustrated.

(11) The variations in microstructure of these specimens after annealing are investigated by Mssbauer hyperfine parameters.

(12) The regular variation of crystallization temperature, magnetic ordering temperature and average hyperfine magnetic field of the amorphous alloys with Nb content were observed.

(13) Formic acid hydrolysis, triethanolamine hydrolysis, protease hydrolysis, pancreatic hydrolysis, protein material filling was used to modify hyperfine fibre synthetic leather base (for short "base").

(14) Encoding qubits on the singlet state and the triplet state can protect qubits from low-frequency noise and suppress the dominant source of decoherence from hyperfine interactions.

(15) This helps us to further investigate the spin decoherence caused by the hyperfine interaction in quantum dots.