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Perfluoroalkane acids in human milk under the global monitoring plan of the Stockholm Convention on Persistent Organic Pollutants (2008–2019)

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 10, doi: 10.1007/s11783-022-1541-8

Abstract:

● Perfluorooctanesulfonic acid and perfluorooctanoic acid highest in human milk.

Keywords： Human biomonitoring     Human breast milk     LC-MS/MS analysis     Lifestyle parameters    

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Effectiveness of lifestyle intervention for hypertension in Shanghai communities: Results from the Shanghai

Xin-Jian LI MD, Min-Na CHENG MPH, Yu-Heng WANG MD, Sun MIAO MPH, Zong-Qi ZHANG PhD, Yi-Sheng CHEN MD, Wei LU PhD,

Frontiers of Medicine 2010, Volume 4, Issue 1,   Pages 67-70 doi: 10.1007/s11684-010-0023-8

Abstract: A community-based multi-center randomized controlled trial was conducted to evaluate the effectiveness of blood pressure control for hypertension patients in communities in urban Shanghai by integrated intervention. At present, patients (=1395) from four communities have completed follow-up for one year, including the intervention group (=921) and usual care group (=474). The intervention programs included disease management by a care manager. Blood pressure of each patient was measured regularly. Compared with the control group, the net change of mean systolic blood pressure (SBP) was −6.75 (95% CI: −7.79 to −5.71, <0.001) mmHg, mean diastolic blood pressure (DBP) was −4.29 (95% CI: −5.08 to −3.49, <0.001) mmHg, and mean pulse pressure (PP) was −2.46 (95% CI: −3.50 to −1.43, <0.001) mmHg in the intervention group. The net change extent was larger in patients with regular pharmacological treatment than in those with irregular pharmacological treatment or non-pharmacological treatment. The measures of integrated intervention for hypertension patients in communities can lower significantly not only SBP and DBP, but also PP. It is suggested that measures of integrated intervention can decrease the risk of cardiovascular diseases in hypertension patients.

Keywords： hypertension     community     pharmacological adherence     control of blood pressure    

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Inverse identification of the mechanical parameters of a pipeline hoop and analysis of the effect of

Ye GAO, Wei SUN

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3,   Pages 358-368 doi: 10.1007/s11465-019-0539-9

Abstract: pipeline system effectively and analyze its vibration characteristics, the mechanical characteristic parametersThe procedure of identifying such parameters was described based on the measured natural frequenciesA case study was performed, and the mechanical parameters of the hoop were identified using the proposed

Keywords： inverse identification     pipeline hoop     frequency response function     mechanical parameters     preload    

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Impact of anthropogenic heat emissions on meteorological parameters and air quality in Beijing using

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 4, doi: 10.1007/s11783-021-1478-3

Abstract:

The Large scale Urban Consumption of energ Y model was updated and coupled with WRF.

Keywords： Anthropogenic heat emissions     LUCY     High-resolution     Meteorological parameters     Air quality    

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Effect of thermodynamic parameters on the performance of refrigerator-ejector

Lihong CAO, Yicai LIU, Chao WAN, Tianlong XIN, Qian HUANG, Mingyan ZHANG

Frontiers in Energy 2010, Volume 4, Issue 4,   Pages 517-521 doi: 10.1007/s11708-010-0004-2

Abstract: The effect of thermodynamic parameters (the pressure of primary fluid and secondary fluid) on the performanceThe boundary conditions were set according to the actual operating condition and the parameters of refrigerator

Keywords： refrigerator-ejector     FLUENT     thermodynamic parameters     entrainment ratio performance    

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Attitude toward preventive counseling and healthy practices among medical students at a Colombian university

Luz Helena Alba,Nora Badoui,Fabián Gil

Frontiers of Medicine 2015, Volume 9, Issue 2,   Pages 251-259 doi: 10.1007/s11684-015-0393-z

Abstract:

Unhealthy behaviors of medical students influence their attitudes toward preventive counseling. The burden of chronic diseases is continually growing in developing countries, emphasizing the need for the increased role of general practitioners in preventive counseling. The objective of this study was to describe the effect of medical training on the risk profiles and attitudes of medical students toward preventive counseling in a Colombian university. Students in their first and fifth years of training were surveyed using the “Healthy Doctor= Healthy Patient” questionnaire to assess counseling attitudes; personal practices, such as risky drinking, smoking, inadequate nutrition, and non-compliance with physical activity recommendations; and the university environment. The association among these components was estimated, as well as the effect of the university environment. Risky drinking and smoking decreased from first to fifth year (59.3% vs. 37.1%, P = 0.021 and 31.5% vs. 25.9%, P = 0.51, respectively), whereas inadequate nutrition and non-compliance with physical activity recommendations increased. Physical activity (PA) was associated with positive counseling attitude (ORs: nutrition 7.6; alcohol 5.2; PA 10.6). Areas governed by institutional policies that are emphasized in the curriculum positively affected student practices. PA promoted preventive counseling and healthy lifestyles most effectively. Universities should therefore strengthen their preventive medicine curricula and modify social determinants.

Keywords： lifestyle     medical students     preventive medicine     counseling     universities     schools     medical    

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Effects of critical geometric parameters on the optical performance of a conical cavity receiver

Hu XIAO, Yanping ZHANG, Cong YOU, Chongzhe ZOU, Quentin FALCOZ

Frontiers in Energy 2019, Volume 13, Issue 4,   Pages 673-683 doi: 10.1007/s11708-019-0630-2

Abstract: with different geometric shapes, but less research is conducted on the effects of critical geometric parameters

Keywords： parabolic collector     conical cavity receiver     critical geometric parameters     optical performance    

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Effect of preparation parameters on catalytic properties of Pt/graphite

LIU Zhengqian, MA Jun, ZHAO Lei

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 4,   Pages 482-487 doi: 10.1007/s11783-007-0077-2

Abstract: Catalytic ozonation of aqueous solutions of oxalic acid was examined in the presence of graphite-supported platinum catalysts. The catalytic activity of graphite was significantly enhanced by loading platinum. The removal efficiency of oxalic acid was 3.0%, 47.6% and 99.3% for ozonation alone, graphite catalytic ozonation and Pt/graphite catalytic ozonation in 30 min under the experimental condition, respectively. The influence of support pretreatment, solvent, impregnation time, platinum loading amount and reduction temperature on the activity of Pt/graphite catalyst was investigated. The pretreatment of graphite support had no effect on activity improvement of Pt/graphite catalyst. Solvent and impregnation time also had no great effect on the activity. Platinum loading amount and reduction temperature influenced the catalyst activity significantly. The optimal catalytic performance of Pt/graphite was obtained when 1.0% platinum loading and 623 K of reduction temperature was adopted. The Pt/graphite catalyst was used for five times with no significant decrease in its activity and more than 90% oxalic acid removal was obtained.
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An energy consumption prediction approach of die casting machines driven by product parameters

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 868-886 doi: 10.1007/s11465-021-0656-0

Abstract: paper proposes an energy consumption prediction approach for die casting machines driven by product parametersconsumption prediction approach for die casting machines, involving product, die, equipment, and process parameters

Keywords： die casting machine     energy consumption prediction     product parameters    

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The influence of manufacturing parameters and adding support layer on the properties of Zirfon

Li XU,Yue YU,Wei LI,Yan YOU,Wei XU,Shaoxing ZHANG

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 3,   Pages 295-305 doi: 10.1007/s11705-014-1433-y

Abstract: The influence of manufacturing parameters on its properties was investigated, and the results show thatthe manufacturing parameters affect the ionic resistance and maximum pore size significantly.

Keywords： separator     alkaline water electrolysis     manufacturing parameters     support layer    

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Steam turbine governor modeling and parameters testing for power system simulation

Ying LI, Chufeng PENG, Zenghui YANG

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 198-203 doi: 10.1007/s11708-009-0004-2

Abstract: The theoretical modeling, parameters test and model correction for a steam turbine (ST) governor are

Keywords： power system simulation     ST governor system     modeling     parameters testing    

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Analysis and experiment on structure parameters for an energy reclaiming suspension

CHEN Shi‘an, HE Ren, LU Senlin

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 2,   Pages 200-204 doi: 10.1007/s11465-008-0024-3

Abstract: An energy reclaiming suspension is proposed to reclaim vibration energy in the suspension. To study its riding performance and reclaiming energy performance, a hydraulic energy reclaiming device prototype is produced and its mechanical behavior is analyzed and tested according to the hydraulic theory. Theoretical analysis shows that mechanical behavior of the energy reclaiming device is embodied by a viscidity damping parameter and an analogous coulomb damping parameter determined by its structure; their expressions are obtained. Experimental investigation shows that theoretical predictions agree with test results.

Keywords： Experimental investigation     analogous coulomb     hydraulic     performance     suspension    

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Determination of the feasible setup parameters of a workpiece to maximize the utilization of a five-axis

Aqeel AHMED, Muhammad WASIF, Anis FATIMA, Liming WANG, Syed Amir IQBAL

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 2,   Pages 298-314 doi: 10.1007/s11465-020-0621-3

Abstract: machining envelope, thereby further developing an algorithm to determine the feasible workpiece setup parametersFinally, the algorithm is validated for feasible workpiece setup parameters in a virtual environment.applicable in the industry to eliminate the number of iterations performed for the suitable workpiece setup parameters

Keywords： workpiece setup parameter     five-axis     space utilization     setup parameters     machine tool    

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Multi-objective optimization of cutting parameters in high-speed milling based on grey relational analysis

Tao FU, Jibin ZHAO, Weijun LIU

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 4,   Pages 445-452 doi: 10.1007/s11465-012-0338-z

Abstract:

This paper investigates optimization problem of the cutting parameters in high-speed milling on NAK80In this study, the optimum cutting parameters are obtained by the grey relational analysis.coupled with principal component analysis can effectively acquire the optimal combination of cutting parameters

Keywords： high-speed milling     grey relational analysis     principal component analysis     parameters optimization    

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Application of micro-genetic algorithm for calibration of kinetic parameters in HCCI engine combustion

HUANG Haozhong, SU Wanhua

Frontiers in Energy 2008, Volume 2, Issue 1,   Pages 86-92 doi: 10.1007/s11708-008-0003-8

Abstract: The seven kinetic parameters of the calibrated model are determined using a combination of the Micro-Geneticdemonstrated that the mGA is an effective tool to facilitate the calibration of a large number of kinetic parameters

Keywords： homogeneous     different     combustion     autoignition     compression    

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Title Author Date Type Operation

Perfluoroalkane acids in human milk under the global monitoring plan of the Stockholm Convention on Persistent Organic Pollutants (2008–2019)

Journal Article

Effectiveness of lifestyle intervention for hypertension in Shanghai communities: Results from the Shanghai

Xin-Jian LI MD, Min-Na CHENG MPH, Yu-Heng WANG MD, Sun MIAO MPH, Zong-Qi ZHANG PhD, Yi-Sheng CHEN MD, Wei LU PhD,

Journal Article

Inverse identification of the mechanical parameters of a pipeline hoop and analysis of the effect of

Ye GAO, Wei SUN

Journal Article

Impact of anthropogenic heat emissions on meteorological parameters and air quality in Beijing using

Journal Article

Effect of thermodynamic parameters on the performance of refrigerator-ejector

Lihong CAO, Yicai LIU, Chao WAN, Tianlong XIN, Qian HUANG, Mingyan ZHANG

Journal Article

Attitude toward preventive counseling and healthy practices among medical students at a Colombian university

Luz Helena Alba,Nora Badoui,Fabián Gil

Journal Article

Effects of critical geometric parameters on the optical performance of a conical cavity receiver

Hu XIAO, Yanping ZHANG, Cong YOU, Chongzhe ZOU, Quentin FALCOZ

Journal Article

Effect of preparation parameters on catalytic properties of Pt/graphite

LIU Zhengqian, MA Jun, ZHAO Lei

Journal Article

An energy consumption prediction approach of die casting machines driven by product parameters

Journal Article

The influence of manufacturing parameters and adding support layer on the properties of Zirfon

Li XU,Yue YU,Wei LI,Yan YOU,Wei XU,Shaoxing ZHANG

Journal Article

Steam turbine governor modeling and parameters testing for power system simulation

Ying LI, Chufeng PENG, Zenghui YANG

Journal Article

Analysis and experiment on structure parameters for an energy reclaiming suspension

CHEN Shi‘an, HE Ren, LU Senlin

Journal Article

Determination of the feasible setup parameters of a workpiece to maximize the utilization of a five-axis

Aqeel AHMED, Muhammad WASIF, Anis FATIMA, Liming WANG, Syed Amir IQBAL

Journal Article

Multi-objective optimization of cutting parameters in high-speed milling based on grey relational analysis

Tao FU, Jibin ZHAO, Weijun LIU

Journal Article

Application of micro-genetic algorithm for calibration of kinetic parameters in HCCI engine combustion

HUANG Haozhong, SU Wanhua

Journal Article