Introduction In recent years, the syntheses, properties and applications of the complexes of transition-metal ions with Schiff bases have been a very interesting subject in coordination chemistry. It has been clearly ...Introduction In recent years, the syntheses, properties and applications of the complexes of transition-metal ions with Schiff bases have been a very interesting subject in coordination chemistry. It has been clearly stated that some of them have certain antitumor展开更多
Based on the structure design and results of neutronics analysis of the CH HCSB TBM (Chinese helium cooled solid breeder test blanket module), thermal hydraulic and mechanical analyses have been carried out. Results s...Based on the structure design and results of neutronics analysis of the CH HCSB TBM (Chinese helium cooled solid breeder test blanket module), thermal hydraulic and mechanical analyses have been carried out. Results show that the design of the CH HCSB TBM is reasonable and acceptable.展开更多
A formula is derived for determining the influence of temperature and loading rate on dynamic fracture toughness of a high strength low alloy steel (HQ785C) from thermal activation analysis of the experimental results...A formula is derived for determining the influence of temperature and loading rate on dynamic fracture toughness of a high strength low alloy steel (HQ785C) from thermal activation analysis of the experimental results of three-point bend specimens as well as introducing an Arrhenius formula. It is shown that the results obtained by the given formula are in good agreement with the experimental ones in the thermal activation region. The present method is also valuable to describe the relationship between dynamic fracture toughness and temperature and loading rate of other high strength low alloy steels.展开更多
In-vessel components are important parts of the EAST superconducting tokamak. They include the plasma facing components, passive plates, cryo-pumps, in-vessel coils, etc. The structural design, analysis and related R...In-vessel components are important parts of the EAST superconducting tokamak. They include the plasma facing components, passive plates, cryo-pumps, in-vessel coils, etc. The structural design, analysis and related R＆D have been completed. The divertor is designed in an up-down symmetric configuration to accommodate both double null and single null plasma operation. Passive plates are used for plasma movement control. In-vessel coils are used for the active control of plasma vertical movements. Each cryo-pump can provide an approximately 45 m^3/s pumping rate at a pressure of 10^-1 Pa for particle exhaust. Analysis shows that, when a plasma current of 1 MA disrupts in 3 ms, the EM loads caused by the eddy current and the halo current in a vertical displacement event （VDE） will not generate an unacceptable stress on the divertor structure. The bolted divertor thermal structure with an active cooling system can sustain a load of 2 MW/m^2 up to a 60 s operation if the plasma facing surface temperature is limited to 1500 ℃. Thermal testing and structural optimization testing were conducted to demonstrate the analysis results.展开更多
A novel manganese（Ⅱ） coordination polymer [Mn（L^1）2（H2O）]·2H2O （HL^1 = 2,6- dichlorobenzoic acid） 1 has been synthesized and structurally characterized. X-ray diffraction analyses reveal that 1 is a one-...A novel manganese（Ⅱ） coordination polymer [Mn（L^1）2（H2O）]·2H2O （HL^1 = 2,6- dichlorobenzoic acid） 1 has been synthesized and structurally characterized. X-ray diffraction analyses reveal that 1 is a one-dimensional chain structure bridged by water molecules and 2,6- dichlorobenzoic acid. The crystal is of monoclinic, space group P21/c with α = 12.9701（19）, b = 20.592（3）, c = 7.3759（10） A, β = 102.660（2）°, V = 1.9221（5）. nm^3, Z = 4, C14H12Cl4MnO7, Mr= 488.98, Dc= 1.690 g/cm^3, p = 1.275 mm^-1, F（000） = 980, Rint = 0.0348, R = 0.0350, and wR = 0.0755. In the crystal the manganese atom is six-coordinated by two oxygen atoms from water and four oxygen atoms from four 2,6-dichlorobenzolate molecules, completing an octahedral geometry.展开更多
文摘Introduction In recent years, the syntheses, properties and applications of the complexes of transition-metal ions with Schiff bases have been a very interesting subject in coordination chemistry. It has been clearly stated that some of them have certain antitumor
文摘Based on the structure design and results of neutronics analysis of the CH HCSB TBM (Chinese helium cooled solid breeder test blanket module), thermal hydraulic and mechanical analyses have been carried out. Results show that the design of the CH HCSB TBM is reasonable and acceptable.
文摘A formula is derived for determining the influence of temperature and loading rate on dynamic fracture toughness of a high strength low alloy steel (HQ785C) from thermal activation analysis of the experimental results of three-point bend specimens as well as introducing an Arrhenius formula. It is shown that the results obtained by the given formula are in good agreement with the experimental ones in the thermal activation region. The present method is also valuable to describe the relationship between dynamic fracture toughness and temperature and loading rate of other high strength low alloy steels.
基金JSPS-CAS Core-University Program on Basic Research of Nuclear Fusion Reactor Engineering in 2007
文摘In-vessel components are important parts of the EAST superconducting tokamak. They include the plasma facing components, passive plates, cryo-pumps, in-vessel coils, etc. The structural design, analysis and related R＆D have been completed. The divertor is designed in an up-down symmetric configuration to accommodate both double null and single null plasma operation. Passive plates are used for plasma movement control. In-vessel coils are used for the active control of plasma vertical movements. Each cryo-pump can provide an approximately 45 m^3/s pumping rate at a pressure of 10^-1 Pa for particle exhaust. Analysis shows that, when a plasma current of 1 MA disrupts in 3 ms, the EM loads caused by the eddy current and the halo current in a vertical displacement event （VDE） will not generate an unacceptable stress on the divertor structure. The bolted divertor thermal structure with an active cooling system can sustain a load of 2 MW/m^2 up to a 60 s operation if the plasma facing surface temperature is limited to 1500 ℃. Thermal testing and structural optimization testing were conducted to demonstrate the analysis results.
基金This work was supported by the Basic Research of Hunan Province (03JZY3036),Science Foundation of Hengyang Normal University of China (2006A15) and Foundation of the Eleventh Five-year Key Constructing Discipline of Hunan Province
文摘A novel manganese（Ⅱ） coordination polymer [Mn（L^1）2（H2O）]·2H2O （HL^1 = 2,6- dichlorobenzoic acid） 1 has been synthesized and structurally characterized. X-ray diffraction analyses reveal that 1 is a one-dimensional chain structure bridged by water molecules and 2,6- dichlorobenzoic acid. The crystal is of monoclinic, space group P21/c with α = 12.9701（19）, b = 20.592（3）, c = 7.3759（10） A, β = 102.660（2）°, V = 1.9221（5）. nm^3, Z = 4, C14H12Cl4MnO7, Mr= 488.98, Dc= 1.690 g/cm^3, p = 1.275 mm^-1, F（000） = 980, Rint = 0.0348, R = 0.0350, and wR = 0.0755. In the crystal the manganese atom is six-coordinated by two oxygen atoms from water and four oxygen atoms from four 2,6-dichlorobenzolate molecules, completing an octahedral geometry.
