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144 results on '"Liu, Yingshu"'

20. Nomogram for predicting intraoperative hemodynamic instability in patients with normotensive pheochromocytoma

Author

Liu, Yingshu, primary, Liu, Chao, additional, Wang, Yao, additional, Li, Shen, additional, Li, Xinyu, additional, Liu, Xuhan, additional, Wang, Bing, additional, Pei, Zuowei, additional, Li, Linfeng, additional, Lin, Lu, additional, Qu, Jianchang, additional, Chen, Kang, additional, Zang, Li, additional, Gu, Weijun, additional, Mu, Yiming, additional, Lyu, Zhaohui, additional, Dou, Jingtao, additional, and Gao, Zhengnan, additional

Published
2023
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32. Dynamic Adsorption/Desorption of NO x on MFI Zeolites: Effects of Relative Humidity and Si/Al Ratio.

Author

Tao, Haiyang and Liu, Yingshu

Subjects
*HUMIDITY, *DESORPTION, *ZEOLITES, *FIELD emission electron microscopy, *ADSORPTION (Chemistry)
Abstract

Adsorption is a potential technology that is expected to meet NOx ultra-low emission standards and achieve the recovery of NO2. In this study, the adsorption/desorption behavior of NOx with competitive gases (e.g., H2O(g) and CO2) was studied on MFI zeolites with different Si/Al ratios and under different relative humidity (0~90% RH). Sample characterization of self-synthesizing zeolites was conducted by means of X-ray diffraction, Ar adsorption-desorption, and field emission scanning electron microscopy. The results showed that low-silica HZSM-5(35) showed the highest NOx adsorption capacity of 297.8 μmol/g (RH = 0) and 35.4 μmol/g (RH = 90%) compared to that of other adsorbents, and the efficiency loss factor of NOx adsorption capacity at 90%RH ranged from 85.3% to 88.1%. A water-resistance strategy was proposed for NOx multicomponent competitive adsorption combined with dynamic breakthrough tests and static water vapor adsorption. The presence of 14% O2 and lower adsorption temperature (25 °C) favored NOx adsorption, while higher CO2 concentrations (~10.5%) had less effect. The roll-up factor (η) was positively correlated with lower Si/Al ratios and higher H2O(g) concentrations. Unlike Silicalite-1, HZSM-5(35) exhibited an acceptable industrial desorption temperature window of NO2 (255~265 °C). This paper aims to provide a theoretical guideline for the rational selection of NOx adsorbents for practical applications. [ABSTRACT FROM AUTHOR]

Published
2023
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48. Relationships between neck circumference and cardiovascular risk factors in hyperglycemia

Author

Liu, Yingshu

Abstract

ObjectiveTo explore the relationship between NC and cardiovascular risk factors in population with hyperglycemia.Method2319 person (Age u226540 years) with hyperglycemia were recruited in Dalian community from July 2012 to December 2014. NC, WC, blood pressure, plasma glucose, blood lipids were measured and documented in the questionnaire along with other basic information. Linear regression models and logistic regression model were constructed to assess the association between NC and cardiovascular risk factors.Results(1) NC was (39.0u00b12.7) cm in male and(35.0u00b12.6) cm in female, which were higher in male than female (P = 0.001).(2) Adjusted for age, smoking, drinking and menstrual status, NC was positively associated with systolic blood pressure, diastolic blood pressure, fasting plasma glucose (FPG) , 2 hours Postprandial Plasma Glucose (2hPG), glycosylated hemoglobin (HbA1C) and triglycerides, while negatively associated with low density lipoprotein-cholesterol (all Puff1c0.01). Adjusted for BMI, NC was independently associated with FPG, 2 hPG and HbA1C in male (all Puff1c0.01), while all above risk factors in female (all Puff1c0.05). (3) Logistic regression showed that NC increased along with increasing trend of obesity, central obesity, diabetes, hypertension, dyslipidemia and metabolic syndrome (MS) in both male and female. Even after adjusting for BMI and WC, NC increased with diabetes in male (OR = 1.089, 95% CI 1.004-1.181, P = 0.041) and diabetes (OR = 1.149, 95% CI 1.088-1.214, P < 0.001), hypertension (OR = 1.152, 95% CI 1.088-1.220, P < 0.001), MS (OR = 1.267, 95% CI 1.173-1.368, P < 0.001) in female(Table 1).ConclusionNeck circumference is associated with cardiovascular risk factors in community population with hyperglycemia.u3010Key wordsu3011Neck circumferenceuff1bHyperglycemiauff1bCardiovascular risk factors

Published
2017

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