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Diagnostic evaluation of plasma aldosterone concentration to plasma renin activity ratio in primary aldosteronism

ZHANG Huilan, WANG Daowen

Frontiers of Medicine 2008, Volume 2, Issue 1,   Pages 11-14 doi: 10.1007/s11684-008-0003-4

Abstract: Using the plasma aldosterone concentration to plasma renin activity ratio (PAC/PRA ratio) as the screeninghypertensive patients, we studied the clinical characteristics and the diagnostic value of PAC/PRA ratioThe plasma aldosterone concentration (PAC) and plasma renin activity (PRA) levels were measured by radioimmunoassayOne hundred and twenty-six suspected primary aldosteronism patients whose PAC/PRA ratio was > 25 ng/dLThe PAC/PRA ratio can be considered as a routine screening test in hypertensives, especially resistant
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An investigation of reaction furnace temperatures and sulfur recovery

S. ASADI, M. PAKIZEH, M. POURAFSHARI CHENAR

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 362-371 doi: 10.1007/s11705-011-1106-z

Abstract: The effect of the H S concentration, the H S/CO ratio, the input air flow rate, the acid gas flow ofAlso the effects of the tail gas ratio and the catalytic bed type on the sulfur recovery were studiedHowever, if three other parameters (the concentration of H S, the ratio H S/CO and the flow rate ofThis increase had different slopes depending on the oxygen concentration in the input air.In general, the concentration of oxygen in the input air into the Claus unit had little effect on the

Keywords： Claus unit     concentration of H2S     tail gas ratio     sulfur recovery     catalytic bed    

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Optical performance analysis of an innovative linear focus secondary trough solar concentrating system

Xiliang ZHANG, Zhiying CUI, Jianhan ZHANG, Fengwu BAI, Zhifeng WANG

Frontiers in Energy 2019, Volume 13, Issue 3,   Pages 590-596 doi: 10.1007/s11708-018-0602-y

Abstract: However, the conventional system has its drawbacks when connecting receiver tube parts and enhancing the concentrationratio.problem on the receiver during the tracking process but also opens up the possibility to increase the concentrationratio by enlarging aperture.

Keywords： secondary parabolic trough solar concentrator     ray tracing method     linear focus     concentration ratio     optical    

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Localized high-concentration electrolytes for lithium metal batteries: progress and prospect

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1354-1371 doi: 10.1007/s11705-022-2286-4

Abstract: Here, we provide an overview of the recent developments of localized high-concentration electrolytesFirstly, the solvation structures and physicochemical properties of localized high-concentration electrolytesThen, the developments of localized high-concentration electrolytes to suppress the formation of dendriticLastly, the remaining challenges and further possible research directions for localized high-concentration

Keywords： high-concentration electrolyte     localized high-concentration electrolyte     lithium metal battery     solid    

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PM concentration declining saves health expenditure in China

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 7, doi: 10.1007/s11783-023-1690-4

Abstract:

● Monthly hospitalization expenses are sensitive to increases in PM2.5 exposure.

Keywords： Air pollution     Health expenditure     PM2.5 concentration     Economic impact     Heterogeneous effect    

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A Novel Electrochemical Reactor for Nitrogen and Phosphorus Recovery from Domestic Wastewater

Shiting Ren, Mengchen Li, Jianyu Sun, Yanhong Bian, Kuichang Zuo, Xiaoyuan Zhang, Peng Liang, Xia Huang

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 4, doi: 10.1007/s11783-017-0983-x

Abstract: through a novel electrochemical reactor with circulated anode and cathode using the difference of the concentrationAt the concentration ratio of NaCl solution between the electrode chambers and the middle chamber (r)of 25 to 1, phosphate and ammonium in concentration level of domestic wastewater can be removed and

Keywords： Nutrients recovery     Electrochemical reactor     Electrolyte cyclic flowing     Concentration ratio     Struvite    

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Hydraulic Pressure Extremes Ratio & Extremes Ratio Efficiencies

Qi Maolin

Strategic Study of CAE 2001, Volume 3, Issue 4,   Pages 73-75

Abstract: applies basic formula to the calculation of a relationship between the hydraulic pressure extremes ratioof hydraulic system and the extremes ratio efficiencies.This relationship shows that the greater the hydraulic pressure extremes ratio is, the lower the extremesratio efficiencies are.The article holds that the hydraulic pressure extremes ratio can be designed and chosen.

Keywords： hydraulic pressure extremes ratio     extremes ratio efficiencies     hydraulic system    

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Parametric equations for notch stress concentration factors of rib–deck welds under bending loading

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 595-608 doi: 10.1007/s11709-021-0720-1

Abstract: effective notch stress approach for evaluating the fatigue strength of rib–deck welds requires notch stress concentrationTo improve the efficiency of the approach, the notch stress concentration factors for three typical fatigue-crackingto investigate the effects of multiple geometric parameters of a rib–deck weld on the notch stress concentrationregression analysis was performed to obtain the optimal regression functions for predicting the notch stress concentrationThe notch stress concentration factors estimated from the developed formulas show agree well with the

Keywords： notch stress concentration factor     rib–deck weld     parametric analysis     regression analysis     parametric    

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Controlling interstory drift ratio profiles via topology optimization strategies

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 2,   Pages 165-178 doi: 10.1007/s11709-022-0892-3

Abstract: proposed approach involves solving a min–max optimization problem to suppress the maximum interstory drift ratioThe proposed methodology can shape the interstory drift ratio profiles into inverted triangular or quadratic

Keywords： interstory drift ratio     aggregation function     bound formulation     min–max problem     topology optimization    

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Effect of electrolyte concentration on the tribological performance of MAO coatings on aluminum alloys

Chao Wang, Jun Chen, Jihua He, Jing Jiang, Qinyong Zhang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 1065-1071 doi: 10.1007/s11705-019-1909-x

Abstract: In order to investigate the effect of the electrolyte concentration on the properties of MAO coatings

Keywords： aluminum alloy     micro-arc oxidation     coating     electrolyte concentration     tribological performance    

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A methodology of implementing target mixing ratio for asphalt mixture

Yucheng HUANG, Lun JI, Rui WEN, Ming ZHANG

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 3,   Pages 308-314 doi: 10.1007/s11709-017-0405-y

Abstract: of hot mix asphalt adequately during the construction process, the significance of objective mixing ratioThe results show that the set of methods can not only implement the objective mixing ratio of hot mix

Keywords： asphalt mixture     target mixing ratio     mix design implementation     batching & mixing plant debugging    

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Effects of gradient concentration on the microstructure and electrochemical performance of LiNi

Wenming Li, Weijian Tang, Maoqin Qiu, Qiuge Zhang, Muhammad Irfan, Zeheng Yang, Weixin Zhang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 988-996 doi: 10.1007/s11705-020-1918-9

Abstract: The design of gradient concentration (GC) particles with Ni-rich inside and Mn-rich outside is provedHerein, a series of LiNi Co Mn O (LNCM622) materials with different GCs (the atomic ratio of Ni/Mn decreasing

Keywords： gradient concentration     Ni-rich     LiNi0.6Co0.2-Mn0.2O2     electrochemical    

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Study of simultaneous saccharification and fermentation for steam exploded wheat straw to ethanol

LUO Peng, YANG Chuanmin, LIU Zhong, WANG Gaosheng

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 447-451 doi: 10.1007/s11705-008-0069-1

Abstract: The effects of reaction temperature, substrate concentration, initial fermentation liquid pH value andand yield was substrate concentration, enzyme loading, initial fermentation liquid pH value and reactionThe optimal SSF conditions were: reaction temperature, 35°C; substrate concentration, 100 g·L; initialUnder these conditions, the ethanol concentration increased with reaction time, and after 72 h, ethanolwas obtained in 65.8% yield with a concentration of 22.7 g·L.

Keywords： optimal SSF     substrate concentration     optimum condition     enzyme loading     ethanol concentration    

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Numerical and experimental research of the characteristics of concentration solar cells

Zilong WANG, Hua ZHANG, Binlin DOU, Weidong WU, Guanhua ZHANG

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 279-291 doi: 10.1007/s11708-019-0637-8

Abstract: High concentration photovoltaic systems (HCPVs) combining triple-junction InGaP/lnGaAs/Ge solar cellsA paraboloidal concentrator with a secondary optic system and a concentration ratio in the range of 100X(YXS) were used as comparison samples in a further comparative study at different concentration ratiosratio, while the cell efficiency ( ) of the solar cells increases first and then decreases with increasingconcentration ratio.

Keywords： concentration     three-junction solar cell     mathematical model     electrical properties     solar energy    

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Acid resistance of methanogenic bacteria in a two-stage anaerobic process treating high concentration

ZHOU Xuefei, REN Nanqi

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 1,   Pages 53-56 doi: 10.1007/s11783-007-0010-8

Abstract: experiments were employed to evaluate the performance of anaerobic digestion for the treatment of high concentration

Keywords： pH     Granular     upflow anaerobic     advisable pH     methanogenic    

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Title Author Date Type Operation

Diagnostic evaluation of plasma aldosterone concentration to plasma renin activity ratio in primary aldosteronism

ZHANG Huilan, WANG Daowen

Journal Article

An investigation of reaction furnace temperatures and sulfur recovery

S. ASADI, M. PAKIZEH, M. POURAFSHARI CHENAR

Journal Article

Optical performance analysis of an innovative linear focus secondary trough solar concentrating system

Xiliang ZHANG, Zhiying CUI, Jianhan ZHANG, Fengwu BAI, Zhifeng WANG

Journal Article

Localized high-concentration electrolytes for lithium metal batteries: progress and prospect

Journal Article

PM concentration declining saves health expenditure in China

Journal Article

A Novel Electrochemical Reactor for Nitrogen and Phosphorus Recovery from Domestic Wastewater

Shiting Ren, Mengchen Li, Jianyu Sun, Yanhong Bian, Kuichang Zuo, Xiaoyuan Zhang, Peng Liang, Xia Huang

Journal Article

Hydraulic Pressure Extremes Ratio & Extremes Ratio Efficiencies

Qi Maolin

Journal Article

Parametric equations for notch stress concentration factors of rib–deck welds under bending loading

Journal Article

Controlling interstory drift ratio profiles via topology optimization strategies

Journal Article

Effect of electrolyte concentration on the tribological performance of MAO coatings on aluminum alloys

Chao Wang, Jun Chen, Jihua He, Jing Jiang, Qinyong Zhang

Journal Article

A methodology of implementing target mixing ratio for asphalt mixture

Yucheng HUANG, Lun JI, Rui WEN, Ming ZHANG

Journal Article

Effects of gradient concentration on the microstructure and electrochemical performance of LiNi

Wenming Li, Weijian Tang, Maoqin Qiu, Qiuge Zhang, Muhammad Irfan, Zeheng Yang, Weixin Zhang

Journal Article

Study of simultaneous saccharification and fermentation for steam exploded wheat straw to ethanol

LUO Peng, YANG Chuanmin, LIU Zhong, WANG Gaosheng

Journal Article

Numerical and experimental research of the characteristics of concentration solar cells

Zilong WANG, Hua ZHANG, Binlin DOU, Weidong WU, Guanhua ZHANG

Journal Article

Acid resistance of methanogenic bacteria in a two-stage anaerobic process treating high concentration

ZHOU Xuefei, REN Nanqi

Journal Article