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Effect of potassium carbonate on catalytic synthesis of calcium carbide at moderate temperature

Dejun SHI, Ke QIAO, Zifeng YAN

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 372-375 doi: 10.1007/s11705-010-0570-1

Abstract: The effect of potassium carbonate as additive on the composition and morphology of the product was investigatedAddition of potassium carbonate increased the yield of calcium carbide.The sample in the presence of potassium carbonate generated acetylene gas of 168.3 L/kg, which was 10%higher than that in the absence of potassium carbonate.This result confirmed the catalytic effect of potassium carbonate on the synthesis of calcium carbide

Keywords： calcium carbide     synthesis     catalysis    

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Influences of additives on the crystal habit of potassium chloride

Xiaofu GUO, Junsheng YUAN, Zhiyong JI, Min SU,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 1,   Pages 78-81 doi: 10.1007/s11705-009-0300-8

Abstract: By means of constant control speed cooling crystallization, the influences of four additives, including lead chloride, cadmium chloride, sodium salicylate, and quaternary ammonium salt, on the crystal habit of KCl were investigated. The results show that the crystal habit of KCl is cube without additives, the crystal habit of KCl is ellipsoid-like in the presence of Pb, the crystal habit of KCl is strip in the presence of Cd, and the crystal habit of KCl is cavate cube in the presence of sodium salicylate. X-ray diffractometry analysis reveals that these additives can change the crystal habit of KCl but not its crystal structure.

Keywords： cadmium chloride     salicylate     presence     crystallization     diffractometry analysis    

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Experimental study on high-efficiency polishing for potassium dihydrogen phosphate (KDP) crystal by using

Ziyuan LIU, Hang GAO, Dongming GUO

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 2,   Pages 294-302 doi: 10.1007/s11465-019-0576-4

Abstract: surface contamination and solve the inefficiency of previous water-dissolution polishing techniques for potassium

Keywords： potassium dihydrogen phosphate (KDP) crystal     controllable deliquescence     two-phase air–water fluid     high-efficiency    

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A space power system of free piston Stirling generator based on potassium heat pipe

Mingqiang LIN, Jian MOU, Chunyun CHI, Guotong HONG, Panhe GE, Gu HU

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 1-10 doi: 10.1007/s11708-019-0655-6

Abstract: The power system of a free piston Stirling generator (FPSG) based on potassium heat pipes has been developedBesides, the power system integrated with four FPSGs and potassium heat pipes was performed and the single

Keywords： free piston Stirling generator (FPSG)     potassium heat pipe     power system     energy conversion    

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Effect of adding a smart potassium ion-responsive copolymer into polysulfone support membrane on the

Meibo He, Zhuang Liu, Tong Li, Chen Chen, Baicang Liu, John C. Crittenden

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 2,   Pages 400-414 doi: 10.1007/s11705-018-1757-0

Abstract: Thin-film composite (TFC) nanofiltration (NF) membranes were fabricated via the interfacial polymerization of piperazine (PIP) and 1,3,5-benzenetricarbonyl trichloride on polysulfone (PSf) support membranes blended with K -responsive poly( -isopropylacryamide-co-acryloylamidobenzo-15-crown-5) (P(NIPAM-co-AAB C )). Membranes were characterized by attenuated total reflection Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, atomic force microscope, scanning electron microscope, contact angle, and filtration tests. The results showed that: (1) Under K -free conditions, the blended P(NIPAM-co-AAB C )/PSf supports had porous and hydrophilic surfaces, thereby producing NF membranes with smooth surfaces and low MgSO rejections; (2) With K in the PIP solution, the surface roughness and water permeability of the resultant NF membrane were increased due to the K -induced transition of low-content P(NIPAM-co-AAB C ) from hydrophilic to hydrophobic; (3) After a curing treatment at 95 °C, the improved NF membrane achieved an even higher pure water permeability of 10.97 L·m ·h ·bar under 200 psi. Overall, this study provides a novel method to improve the performance of NF membranes and helps understand the influence of supports on TFC membranes.

Keywords： nanofiltration     interfacial polymerization     support membrane     potassium ion-responsive     thin-film composite    

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Research on acoustic-structure sensitivity using FEM and BEM

ZHANG Jun, ZHAO Wenzhong, ZHANG Weiying

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 62-67 doi: 10.1007/s11465-007-0010-1

Abstract: Acoustic-structure sensitivity is used to predict the change of acoustic pressure when a structure designThe sensitivity is significant for reducing noise of structure.Using FEM (finite element method) and BEM (boundary element method) acoustic-structure sensitivity wasThen, acoustic-structure sensitivity was computed by linking velocity sensitivity in FEM and acousticsensitivity in BEM.

Keywords： sensitivity method     BEM     acoustic pressure     pressure sensitivity     frequency    

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Parametric sensitivity analysis of cellular diaphragm wall

Xi CHEN, Wei XU

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 4,   Pages 358-364 doi: 10.1007/s11709-012-0177-3

Abstract: The results indicated that the maximum lateral displacement, which is the evaluation index of sensitivity

Keywords： cellular diaphragm wall     sensitivity analysis     optimization     centrifuge model test    

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Probability strength design of steam turbine blade and sensitivity analysis with respect to random parameters

DUAN Wei

Frontiers in Energy 2008, Volume 2, Issue 1,   Pages 107-115 doi: 10.1007/s11708-008-0018-1

Abstract: Probability sensitivity analysis, which combines the slope of the gradient and the width of the scatter

Keywords： Probability sensitivity     sensitivity analysis     number     cross-section     statistical    

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Preparation and gaseous photocatalytic activity of smooth potassium dititanate film

QIAN Qinghua, HU Yuyan, WEN Gaofei, FENG Xin, LU Xiao-hua

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 3,   Pages 308-314 doi: 10.1007/s11705-008-0047-7

Abstract: A new smooth potassium dititanate film was prepared by sol-gel method and characterized by thermogravimetry

Keywords： reflectance     UV-Visible     photocurrent     irradiation     scanning calorimetry    

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Genetic variants in the ADD1 and GNB3 genes and blood pressure response to potassium supplementation

Dai-Hai YU PhD, Jian-Feng HUANG MD, Ji-Chun CHEN MS, Jie CAO MS, Shu-Feng CHEN PhD, Dong-Feng GU MD, PhD, for the GenSalt Collaborative Research Group, De-Pei LIU PhD, Lai-Yuan WANG PhD, Jing CHEN MD, MSc, Jiang HE MD, PhD, Cashell E. JAQUISH PhD, Dabeeru C. RAO PhD, Charles GU PhD, James E. HIXSON PhD, Chung-Shiuan CHEN MS8, Paul K. WHELTON MD, MSc9,

Frontiers of Medicine 2010, Volume 4, Issue 1,   Pages 59-66 doi: 10.1007/s11684-010-0015-8

Abstract: Dietary potassium-supplementation has been associated with a decreased risk of hypertension and otherHowever, blood pressure (BP) responses to potassium supplementation vary among individuals.GNB3) genes and systolic BP (SBP), diastolic BP (DBP), and mean arterial pressure (MAP) responses to potassium-supplementation(60 mmol potassium/day) among 1906 Han Chinese participants from rural north China.DBP and MAP responses to potassium-supplementation were −1.36 (−1.63, −1.10) and −

Keywords： blood pressure     genetics     polymorphism     die-tary potassium     potassium sensitivity     adducin 1 alpha (ADD1)    

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Wheel tracking methods to evaluate moisture sensitivity of hot-mix asphalt mixtures

Jie HAN,Harihar Shiwakoti

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 1,   Pages 30-43 doi: 10.1007/s11709-016-0318-1

Abstract: Existing test methods to determine moisture sensitivity in hot-mix asphalt (HMA) mixtures are time consumingThis research focused on wheel tracking devices to evaluate moisture sensitivity.The HWTD test is more effective as a rapid test method in case of determining moisture sensitivity.

Keywords： hot-mix asphalt     moisture sensitivity     rutting     wheel tracking test    

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Catalytic process modeling and sensitivity analysis of alkylation of benzene with ethanol over MIL-101

Ehsan Rahmani, Mohammad Rahmani

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 1100-1111 doi: 10.1007/s11705-019-1891-3

Abstract: Sensitivity analysis revealed best operating conditions over MIL-101 at 120°C and 5 bar and over MIL-

Keywords： MOFs     alkylation     ethylbenzene     catalysts pellet model     kinetic model     sensitivity analysis    

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An antibiotic composite electrode for improving the sensitivity of electrochemically active biofilm biosensor

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 8, doi: 10.1007/s11783-022-1518-7

Abstract:

• Antibiotic azithromycin employed in graphite electrode for EAB biosensor.

Keywords： AZM@GP composite electrode     EAB-biosensor     Water quality early-warning    

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Global sensitivity analysis of certain and uncertain factors for a circular tunnel under seismic action

Nazim Abdul NARIMAN, Raja Rizwan HUSSAIN, Ilham Ibrahim MOHAMMAD, Peyman KARAMPOUR

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1289-1300 doi: 10.1007/s11709-019-0548-0

Abstract: uncertain design factors to quantify their rational effects using numerical simulations and the Sobol’s sensitivityinteraction effects between the design factors have been determined supporting on variance-based global sensitivityIt is worthy to mention that Sobol’s sensitivity indices manifested strong efficiency in detecting the

Keywords： shear waves     Sobol’s sensitivity indices     maximum principal stress     maximum overall displacement     tensile    

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Kinetics of oxidation of dimethyl trisulfide by potassium permanganate in drinking water

Xiaoyan MA, Shifei HU, Hongyu WANG, Jun LI, Jing HUANG, Yun ZHANG, Weigang LU, Qingsong LI

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 2,   Pages 171-176 doi: 10.1007/s11783-011-0319-1

Abstract: Reaction kinetics of dimethyl trisulfide oxidized by potassium permanganate in water had been studiedResults showed that dimethyl trisulfide can be removed by potassium permanganate efficiently; the ratio

Keywords： odor and taste     oxidation reaction     reaction kinetics     water treatment    

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Title Author Date Type Operation

Effect of potassium carbonate on catalytic synthesis of calcium carbide at moderate temperature

Dejun SHI, Ke QIAO, Zifeng YAN

Journal Article

Influences of additives on the crystal habit of potassium chloride

Xiaofu GUO, Junsheng YUAN, Zhiyong JI, Min SU,

Journal Article

Experimental study on high-efficiency polishing for potassium dihydrogen phosphate (KDP) crystal by using

Ziyuan LIU, Hang GAO, Dongming GUO

Journal Article

A space power system of free piston Stirling generator based on potassium heat pipe

Mingqiang LIN, Jian MOU, Chunyun CHI, Guotong HONG, Panhe GE, Gu HU

Journal Article

Effect of adding a smart potassium ion-responsive copolymer into polysulfone support membrane on the

Meibo He, Zhuang Liu, Tong Li, Chen Chen, Baicang Liu, John C. Crittenden

Journal Article

Research on acoustic-structure sensitivity using FEM and BEM

ZHANG Jun, ZHAO Wenzhong, ZHANG Weiying

Journal Article

Parametric sensitivity analysis of cellular diaphragm wall

Xi CHEN, Wei XU

Journal Article

Probability strength design of steam turbine blade and sensitivity analysis with respect to random parameters

DUAN Wei

Journal Article

Preparation and gaseous photocatalytic activity of smooth potassium dititanate film

QIAN Qinghua, HU Yuyan, WEN Gaofei, FENG Xin, LU Xiao-hua

Journal Article

Genetic variants in the ADD1 and GNB3 genes and blood pressure response to potassium supplementation

Dai-Hai YU PhD, Jian-Feng HUANG MD, Ji-Chun CHEN MS, Jie CAO MS, Shu-Feng CHEN PhD, Dong-Feng GU MD, PhD, for the GenSalt Collaborative Research Group, De-Pei LIU PhD, Lai-Yuan WANG PhD, Jing CHEN MD, MSc, Jiang HE MD, PhD, Cashell E. JAQUISH PhD, Dabeeru C. RAO PhD, Charles GU PhD, James E. HIXSON PhD, Chung-Shiuan CHEN MS8, Paul K. WHELTON MD, MSc9,

Journal Article

Wheel tracking methods to evaluate moisture sensitivity of hot-mix asphalt mixtures

Jie HAN,Harihar Shiwakoti

Journal Article

Catalytic process modeling and sensitivity analysis of alkylation of benzene with ethanol over MIL-101

Ehsan Rahmani, Mohammad Rahmani

Journal Article

An antibiotic composite electrode for improving the sensitivity of electrochemically active biofilm biosensor

Journal Article

Global sensitivity analysis of certain and uncertain factors for a circular tunnel under seismic action

Nazim Abdul NARIMAN, Raja Rizwan HUSSAIN, Ilham Ibrahim MOHAMMAD, Peyman KARAMPOUR

Journal Article

Kinetics of oxidation of dimethyl trisulfide by potassium permanganate in drinking water

Xiaoyan MA, Shifei HU, Hongyu WANG, Jun LI, Jing HUANG, Yun ZHANG, Weigang LU, Qingsong LI

Journal Article