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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: stress concentration factors obtained from complex finite element analysis.To improve the efficiency of the approach, the notch stress concentration factors for three typical fatigue-crackingconcentration factors.concentration factors.The 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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Finite element analysis of stress concentrations and failure criteria in composite plates with circular

Abdelhak KHECHAI,Abdelouahab TATI,Abdelhamid GUETTALA

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 3,   Pages 281-294 doi: 10.1007/s11465-014-0307-9

Abstract:

In this study, the stress concentration factors (SCF) in cross-and-angle-ply laminated composite platesdeveloped for the bending and mechanical buckling of laminated composite plates, is used to evaluate the stress

Keywords： laminated composite plates     stress concentration     geometric singularity     anisotropic effect    

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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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Study on an Anti-fatigue Conception of the Ultra-high Strength Steel Part

Zhao Zhenye,Song Deyu,Li Xiangbin,Yang Shuxun,Ma Xinwen

Strategic Study of CAE 2005, Volume 7, Issue 10,   Pages 51-55

Abstract:

A conception of “un-stressing concentration” anti-fatigue for ultra-high strength steelThe compress stress field and cell structure with high density dislocation were formed in surface layerchanged to the subsurface from surface, crack propagation was thwarted, fatigue limit at the place of stressconcentration” surface integrity condition was resulted.This conception of “un-stressing concentration” anti-fatigue was described as a comprehensive

Keywords： ultra-high strength steel     anti-fatigue     stress concentration     surface integrity    

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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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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 screeningThe plasma aldosterone concentration (PAC) and plasma renin activity (PRA) levels were measured by radioimmunoassay
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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 proved

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 ratioswhile the cell efficiency ( ) of the solar cells increases first and then decreases with increasing concentrationanalysis and discussion regarding the influence of the relevant parameters on the performance of high concentration

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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EFFECTS OF TRANSPORT STRESS ON THE INTESTINES INVOLVING NEURONAL NITRIC OXIDE SYNTHASE

Frontiers of Agricultural Science and Engineering   Pages 285-295 doi: 10.15302/J-FASE-2022469

Abstract:

● Transport stress declined the level of leukocytes including lymphocytes

Keywords： intestine     nNOS     nNOS-positive neurons     transport stress    

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Purification and concentration of gluconic acid from an integrated fermentation and membrane process

Parimal Pal, Ramesh Kumar, Subhamay Banerjee

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 1,   Pages 152-163 doi: 10.1007/s11705-018-1721-z

Abstract: A response surface method was used to optimize the purification and concentration of gluconic acid fromwas used for the bioconversion of the glucose in sugarcane juice to gluconic acid (concentration 45 gconditions, such as trans-membrane pressure (TMP), pH, cross-flow rate (CFR) and initial gluconic acid concentration

Keywords： gluconic acid     optimized nanofiltration     green processing     process intensification    

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Soil selenium concentration and Kashin-Beck disease prevalence in Tibet, China

Shunjiang LI, Wei LI, Xia HU, Linsheng YANG, Ruodeng XIRAO

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 1,   Pages 62-68 doi: 10.1007/s11783-009-0009-4

Abstract: In order to investigate the correlation between the prevalence of Kashin-Back disease (KBD) and Se concentrations, natural soil samples and cultivated soil samples were collected from southeastern Tibet, China; and the soil Se concentrations were measured by atomic fluorescent spectrophotometer. It was found that the mean Se concentrations of natural soil samples in KBD areas, from the first layer to the third layer, were 0.17 mg/kg, 0.11 mg/kg, and 0.10 mg/kg, respectively, and in non-disease areas were 0.21 mg/kg, 0.24 mg/kg, and 0.13 mg/kg, respectively. The mean Se concentrations of cultivated soil samples were 0.10 mg/kg in KBD areas and 0.23 mg/kg in non-disease areas, respectively. Soil Se concentrations in KBD areas were lower than that in non-disease areas, and the mean concentrations of soil Se in Tibet were lower than the average of China (0.29 mg/kg). Therefore , there is a close relationship between soil Se concentrations and KBD in Tibet. More studies should be concentrated on the impacts of Se deficiency in soils and its relationship with Se concentrations in food-grain and the human body in Tibet areas.

Keywords： Kashin-Beck disease (KBD)     selenium (Se)     soil     Tibet    

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Analysis on annealing-induced stress of blind-via TSV using FEM

Jie SHAO, Tielin SHI, Li DU, Lei SU, Xiangning LU, Guanglan LIAO

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 3,   Pages 401-410 doi: 10.1007/s11465-017-0457-7

Abstract: However, in TSV manufacturing, thermo-mechanical stress is induced during the annealing process, oftenTop interface stress analysis on the TSV structure shows that the curvature of via openings releasesstress concentration that leads to ~60 MPa decrease of normal stresses,  Keywords： through silicon via (TSV)     annealing-induced stress     interface stress     plastic deformation     finite element    

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Title Author Date Type Operation

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

Journal Article

Finite element analysis of stress concentrations and failure criteria in composite plates with circular

Abdelhak KHECHAI,Abdelouahab TATI,Abdelhamid GUETTALA

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

Study on an Anti-fatigue Conception of the Ultra-high Strength Steel Part

Zhao Zhenye,Song Deyu,Li Xiangbin,Yang Shuxun,Ma Xinwen

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

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

ZHANG Huilan, WANG Daowen

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

EFFECTS OF TRANSPORT STRESS ON THE INTESTINES INVOLVING NEURONAL NITRIC OXIDE SYNTHASE

Journal Article

Purification and concentration of gluconic acid from an integrated fermentation and membrane process

Parimal Pal, Ramesh Kumar, Subhamay Banerjee

Journal Article

Soil selenium concentration and Kashin-Beck disease prevalence in Tibet, China

Shunjiang LI, Wei LI, Xia HU, Linsheng YANG, Ruodeng XIRAO

Journal Article

Analysis on annealing-induced stress of blind-via TSV using FEM

Jie SHAO, Tielin SHI, Li DU, Lei SU, Xiangning LU, Guanglan LIAO

Journal Article