Objective: to analyze the effect of Philips 256ict in different examination methods of coronary artery. Methods: 50 patients who received Philips 256ict coronary artery examination in our hospital from 2015 to Decembe...Objective: to analyze the effect of Philips 256ict in different examination methods of coronary artery. Methods: 50 patients who received Philips 256ict coronary artery examination in our hospital from 2015 to December 2019 were selected and divided into two groups according to the different examination methods. Group A (25 cases) and group B (25 cases). The results of the two groups were observed, mainly including the quality of blood vessel images and radiation dose. Results: there was no significant difference in vascular image quality between group A and group B, and the difference was not statistically significant (P > 0.05);the radiation dose of group A was significantly lower than that of group B (P < 0.05). Conclusion: the application of Philips 256iCT in different coronary artery examinations, prospective ECG control and retrospective ECG control can both obtain good vascular image quality, but the clinical application of the former can effectively reduce the radiation dose, so it has more significant application advantages.展开更多
The chloride ion contained in reinforced concrete seriously corrodes the steel surface and damages concrete, resulting in inferior reinforced concrete that strength seriously compromises the entire structure’s safety...The chloride ion contained in reinforced concrete seriously corrodes the steel surface and damages concrete, resulting in inferior reinforced concrete that strength seriously compromises the entire structure’s safety. Consequently, the examination of chloride ions contained in reinforced concrete becomes an important part of a complete quality control procedure. To effectively check the concentration of chloride ions in concrete, the evaluation process should be accurate and precise. Laboratory data ob- tained using existing evaluation methods for the examination of chloride ion are not sufficiently objective to yield reliable results with accuracy and consistency for each sample. An evaluation algorithm with capability to define indices of precision degree (Ep) and accuracy degree (Ea) is presented in this paper. The authors established a statistically reliable index of unbiased estimators and equations to critically examine the laboratory methods’ precision, accuracy degrees and application value for measuring chlorine ion concentration in reinforced concrete.展开更多
We give a detailed examination of potential energy curves of the singlet and triplet states of CFC1 correlated with the lowest three dissociation limits. The calculations are carried out at the internally contracted m...We give a detailed examination of potential energy curves of the singlet and triplet states of CFC1 correlated with the lowest three dissociation limits. The calculations are carried out at the internally contracted multi- reference configuration interaction/cc-pV（T＋d）Z level with the other two geometric parameters fixed at the state equilibrium conformation. The vertical transition energy, the oscillator strength, the main configuration and the electron transition are also investigated at the same level.展开更多
文摘Objective: to analyze the effect of Philips 256ict in different examination methods of coronary artery. Methods: 50 patients who received Philips 256ict coronary artery examination in our hospital from 2015 to December 2019 were selected and divided into two groups according to the different examination methods. Group A (25 cases) and group B (25 cases). The results of the two groups were observed, mainly including the quality of blood vessel images and radiation dose. Results: there was no significant difference in vascular image quality between group A and group B, and the difference was not statistically significant (P > 0.05);the radiation dose of group A was significantly lower than that of group B (P < 0.05). Conclusion: the application of Philips 256iCT in different coronary artery examinations, prospective ECG control and retrospective ECG control can both obtain good vascular image quality, but the clinical application of the former can effectively reduce the radiation dose, so it has more significant application advantages.
基金Project (No. NSC-93-2211-E-167-002) supported by the NationalScience Council of Taiwan China
文摘The chloride ion contained in reinforced concrete seriously corrodes the steel surface and damages concrete, resulting in inferior reinforced concrete that strength seriously compromises the entire structure’s safety. Consequently, the examination of chloride ions contained in reinforced concrete becomes an important part of a complete quality control procedure. To effectively check the concentration of chloride ions in concrete, the evaluation process should be accurate and precise. Laboratory data ob- tained using existing evaluation methods for the examination of chloride ion are not sufficiently objective to yield reliable results with accuracy and consistency for each sample. An evaluation algorithm with capability to define indices of precision degree (Ep) and accuracy degree (Ea) is presented in this paper. The authors established a statistically reliable index of unbiased estimators and equations to critically examine the laboratory methods’ precision, accuracy degrees and application value for measuring chlorine ion concentration in reinforced concrete.
基金Supported by the National Natural Science Foundation of China under Grant No 11447148
文摘We give a detailed examination of potential energy curves of the singlet and triplet states of CFC1 correlated with the lowest three dissociation limits. The calculations are carried out at the internally contracted multi- reference configuration interaction/cc-pV（T＋d）Z level with the other two geometric parameters fixed at the state equilibrium conformation. The vertical transition energy, the oscillator strength, the main configuration and the electron transition are also investigated at the same level.
