OBJECTIVE：To determine the clinical effect,treatment times,and rheoencephalogram changes in vertebral artery type cervical spondylosis patients treated with innovative Tuina manipulations.METHODS：One ...hundred and twenty six cervical spondylosis patients（vertebral artery type） were randomly divided into test and control groups.Patients in the test group were treated with innovative Tuina manipulations,while those in the control group were treated with the routine Tuina manipulations according to the textbook of Chinese Massage for Acupuncture and Moxibustion majors.The clinical effects,treatment times,clinical symptoms,and cerebral blood flow were measured.RESULTS：The response to the treatment was 100% in the test group and 88.71% in the control group.Patients in the test group required（7 ± 4） treatments before recovery,while those in the control group required（15 ± 7） treatments before recovery（P〈0.05）.The clinical symptoms exhibited greater improvement in the test group compared to the control group（P〈0.05）.There were no differences in cerebral blood flow between the two groups.CONCLUSION：Both innovative Tuina manipulations and routine Tuina manipulations produced satisfactory therapeutic results in vertebral artery type cervical spondylosis patients.However,the innovative manipulation was more effective in improving the functional symptoms,although there were no changes in the cerebral blood flow.
The blue phosphors Na
(2−x)
Ca
(1−x)
SiO
4
:xCe
3+
were synthesized by the sol–gel method and their luminescence characteristics were investigated for the first time. Structural information about ...prepared samples is obtained by analyzing the XRD patterns and SEM micrographs. The photoluminescence (PL) excitation spectra indicate that the Na
(2−x)
Ca
(1−x)
SiO
4
:xCe
3+
phosphors can be effectively excited by ultraviolet (360 nm) light. The PL emission spectra exhibit tunable blue broadband emission with the dominant wavelength of 427–447 nm under excitation of 360 nm by controlling the doping concentration of Ce
3+
. The concentration quenching effect for Ce
3+
was found at the optimum doping concentration of 4 mol%. The Commission Internationale de l’Eclairage 1931 chromaticity coordinates of Na
1.96
Ca
0.96
SiO
4
:0.04Ce
3+
are (0.1447, 0.0787), which are better color purity compared to the commercial Eu
2+
-doped BaMgAl
10
O
17
phosphor. Na
1.96
Ca
0.96
SiO
4
:0.04Ce
3+
composition shows intense blue emission (peak wavelength, 439 nm) with relative intensity versus commercial BaMgAl
10
O
17
:Eu
2+
blue phosphor (Nichia) 65 and 158 % under 254 and 365 nm excitation, respectively. All the results indicate that Na
(2−x)
Ca
(1−x)
SiO
4
:xCe
3+
phosphors are potential candidate as a blue emitting phosphor for UV-converting white light-emitting diodes.
An intense orange-reddish-emitting phosphor, Eu2+ doped Ba2LiB5O10 was prepared by solid-state reactions. The excitation spectrum showed a broad band from 250nm to 400nm with an intense peak at ...322nm. Under the excitation of 322nm, the emission band showed one large broad band peaking at about 590nm with full width at half maximum of 128nm, which corresponds to the 4f65d1→4f7 transition of Eu2+. The critical quenching concentration of Eu2+ in Ba2LiB5O10:Eu2+ phosphor was about 3mol%. The corresponding concentration quenching mechanism was verified to be a dipole–dipole interaction. The value of the critical transfer distance was calculated to be about 19Å. The CIE coordinate (x, y) did not change from the value (0.54, 0.35) observed for 3mol% of Eu2+ when Eu2+ concentration was changed.
The novel white emitting phosphors Ba3Y1−x(PO4)3:xDy3+ have been synthesized by conventional solid-state reaction. The structure of the compound was confirmed by the XRD technique. Under the ...excitation of 348nm, the peaks of the emission spectra of Dy3+ ions are located at 486nm (blue), 575nm (yellow) and 668nm (red) corresponding to the magnetic dipole 4F9/2–6H15/2 transition, the electric dipole 4F9/2–6H13/2 transition and 4F9/2–6H11/2 transition. Concentration quenching occurs when the Dy3+ concentration is beyond 8mol%. The critical transfer distance is calculated to be about 18.98Å and the major concentration self-quenching mechanism of Ba3Y(PO4)3:Dy3+ is the dipole–dipole interaction. The chromaticity coordinates (x=0.3475, y=0.3815) of the as-obtained Ba3Y(PO4)3:Dy3+ phosphors are very close to the “ideal white” (x=0.33, y=0.33). The research results indicate that the Ba3Y1−x(PO4)3:xDy3+ phosphor may be a promising single-component phosphor in the field of solid state lighting in lamp industry.
The blue phosphors Na sub((2-x))Ca sub((1-x))SiO sub(4):x Ce super(3+) were synthesized by the sol-gel method and their luminescence characteristics were investigated for the first time. Structural ...information about prepared samples is obtained by analyzing the XRD patterns and SEM micrographs. The photoluminescence (PL) excitation spectra indicate that the Na sub((2-x))Ca sub((1-x))SiO sub(4):x Ce super(3+) phosphors can be effectively excited by ultraviolet (360 nm) light. The PL emission spectra exhibit tunable blue broadband emission with the dominant wavelength of 427-447 nm under excitation of 360 nm by controlling the doping concentration of Ce super(3+). The concentration quenching effect for Ce super(3+) was found at the optimum doping concentration of 4 mol%. The Commission Internationale de l'Eclairage 1931 chromaticity coordinates of Na sub(1.96)Ca sub(0.96)SiO sub(4):0.04Ce super(3+) are (0.1447, 0.0787), which are better color purity compared to the commercial Eu super(2+)-doped BaMgAl sub(10)O sub(17) phosphor. Na sub(1.96)Ca sub(0.96)SiO sub(4):0.04Ce super(3+) composition shows intense blue emission (peak wavelength, 439 nm) with relative intensity versus commercial BaMgAl sub(10)O sub(17):Eu super(2+) blue phosphor (Nichia) 65 and 158 % under 254 and 365 nm excitation, respectively. All the results indicate that Na sub((2-x))Ca sub((1-x))SiO sub(4):x Ce super(3+) phosphors are potential candidate as a blue emitting phosphor for UV-converting white light-emitting diodes.
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