we preset the design and rabrication of a novel auai-iunction hign contrast gratings that can De usea as a polarizationselective beam splitter with transverse magnetic polarization,which performs two independent funct...we preset the design and rabrication of a novel auai-iunction hign contrast gratings that can De usea as a polarizationselective beam splitter with transverse magnetic polarization,which performs two independent functions,i.e.,reflection focusing and power equalization at a wavelength of 1550 nm.This dual-function grating profile is optimized by the rigorous coupled-wave analysis and the finite-element method.Simple analytical expressions of phase and modal guideline for the beam splitter design are given.The beam splitter based on the grating structure is experimentally studied at a distance of 160 μm from the reflection plane,the results are consistent with the theoretical results basically.展开更多
Objective: To explore the changes and significance of homocysteine (Hcy), high sensitivity C reactive protein (hs-CRP) and coagulation function indexes in patients with acute cerebral infarction. Methods: A total of 1...Objective: To explore the changes and significance of homocysteine (Hcy), high sensitivity C reactive protein (hs-CRP) and coagulation function indexes in patients with acute cerebral infarction. Methods: A total of 110 patients with acute cerebral infarction were selected as the observation group, According to the symptoms of acute cerebral infarction to 96 h, whether the symptoms of neurological deficit were aggravated, the patients in the observation group could be divided into the progressive group (n=65 case) and the non progressive group (n=45 case), and 110 cases with normal physical examination results were selected as control group at the same time. The levels of blood lipid metabolism, Hcy, hs-CRP and blood coagulation function were compared in each group. Results: Single factor analysis showed a statistically significant difference in blood lipid metabolism, Hcy, hs-CRP and coagulation function between groups. Compared with the index level in the control group, the levels of TG, TC, LDL, Hcy, hs-CRP, D-dime and FIB in the observation group were significantly higher than those in the control group, and the HDL level was significantly decreased, the difference was statistically significant. The levels of TG, TC, LDL, Hcy, hs-CRP, D-dime and FIB in the progression group were significantly higher than those in the non progressive group, HDL level was significantly lower than that in the non progressive group showing significant difference. Correlation analysis showed that the severity of acute cerebral infarction was positively correlated with the levels of TG, TC, LDL, Hcy, hs-CRP, D-dime and FIB, and negatively correlated with HDL level. Conclusion: There are abnormalities of blood lipid metabolism and coagulation function in patients with acute cerebral infarction, and the levels of Hcy and hs-CRP increase significantly. Detection of all indexes is of great significance for evaluating the severity of acute cerebral infarction.展开更多
基金Project supported by the Open Fund of the State Key Laboratory of Information Photonics and Optical CommunicationBeijing University of Posts and Telecommunications,China(Grant No.IPOC2019A009)the National Natural Science Foundation of China(Grant Nos.61501214 and 61501213)。
文摘we preset the design and rabrication of a novel auai-iunction hign contrast gratings that can De usea as a polarizationselective beam splitter with transverse magnetic polarization,which performs two independent functions,i.e.,reflection focusing and power equalization at a wavelength of 1550 nm.This dual-function grating profile is optimized by the rigorous coupled-wave analysis and the finite-element method.Simple analytical expressions of phase and modal guideline for the beam splitter design are given.The beam splitter based on the grating structure is experimentally studied at a distance of 160 μm from the reflection plane,the results are consistent with the theoretical results basically.
基金This study was supported by Natural Science Foundation of Xinjiang Uygur Autonomous Region(:2016E02C127).
文摘Objective: To explore the changes and significance of homocysteine (Hcy), high sensitivity C reactive protein (hs-CRP) and coagulation function indexes in patients with acute cerebral infarction. Methods: A total of 110 patients with acute cerebral infarction were selected as the observation group, According to the symptoms of acute cerebral infarction to 96 h, whether the symptoms of neurological deficit were aggravated, the patients in the observation group could be divided into the progressive group (n=65 case) and the non progressive group (n=45 case), and 110 cases with normal physical examination results were selected as control group at the same time. The levels of blood lipid metabolism, Hcy, hs-CRP and blood coagulation function were compared in each group. Results: Single factor analysis showed a statistically significant difference in blood lipid metabolism, Hcy, hs-CRP and coagulation function between groups. Compared with the index level in the control group, the levels of TG, TC, LDL, Hcy, hs-CRP, D-dime and FIB in the observation group were significantly higher than those in the control group, and the HDL level was significantly decreased, the difference was statistically significant. The levels of TG, TC, LDL, Hcy, hs-CRP, D-dime and FIB in the progression group were significantly higher than those in the non progressive group, HDL level was significantly lower than that in the non progressive group showing significant difference. Correlation analysis showed that the severity of acute cerebral infarction was positively correlated with the levels of TG, TC, LDL, Hcy, hs-CRP, D-dime and FIB, and negatively correlated with HDL level. Conclusion: There are abnormalities of blood lipid metabolism and coagulation function in patients with acute cerebral infarction, and the levels of Hcy and hs-CRP increase significantly. Detection of all indexes is of great significance for evaluating the severity of acute cerebral infarction.
