An advanced measuring system in the world for unsteady flow field with combined three-hole probe of which the structure can be easily made and maintained has been developed. Thestructure of combined probe, calibration...An advanced measuring system in the world for unsteady flow field with combined three-hole probe of which the structure can be easily made and maintained has been developed. Thestructure of combined probe, calibration method, measuring system of dynamic characteristicfor probe, flow measuring system and method have been described in detail in this paper..It has been probed by the two examples successfully using the measuring system in pumpresearch that this system plays an important role in turbomachiney research.展开更多
A kinematical model （a parameterized deceleration parameter） and a dynamical model （a parameterized equation of state for dark energy） are constrained from the current observational data including the high-redshif...A kinematical model （a parameterized deceleration parameter） and a dynamical model （a parameterized equation of state for dark energy） are constrained from the current observational data including the high-redshift Gamma-Ray Bursts （GRBs） data with a redshift range from 1.4 to 9. We obtain the stringent constraint on the values of current deceleration parameter q0, current jerk parameter j0, current equation of state for dark energy Woae and transition redshift zT. In addition, we compare the difference of the constraint results between the kinematical and the dynamical scenarios.展开更多
文摘An advanced measuring system in the world for unsteady flow field with combined three-hole probe of which the structure can be easily made and maintained has been developed. Thestructure of combined probe, calibration method, measuring system of dynamic characteristicfor probe, flow measuring system and method have been described in detail in this paper..It has been probed by the two examples successfully using the measuring system in pumpresearch that this system plays an important role in turbomachiney research.
基金河北省自然科学基金(the Natural Science Foundation of Hebei Province of China under Grant No.602405) 中国石油天然气集团公司石油科技中青年创新基金(the CNPC Innovation Fund No.05E7048)
基金supported by the National Natural Science Foundation of China (Grant Nos.11147150,11175077 and 11005088)the Natural Science Foundation of Education Department of Liaoning Province (Grant No. L2011189)the Natural Science Foundation of Liaoning Province,China (Grant No.20102124)
文摘A kinematical model （a parameterized deceleration parameter） and a dynamical model （a parameterized equation of state for dark energy） are constrained from the current observational data including the high-redshift Gamma-Ray Bursts （GRBs） data with a redshift range from 1.4 to 9. We obtain the stringent constraint on the values of current deceleration parameter q0, current jerk parameter j0, current equation of state for dark energy Woae and transition redshift zT. In addition, we compare the difference of the constraint results between the kinematical and the dynamical scenarios.
