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Regioselective acylation of pyridoxine catalyzed by immobilized lipase in ionic liquid

BAI Shu, REN Mengyuan, WANG Lele, SUN Yan

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 3,   Pages 301-307 doi: 10.1007/s11705-008-0060-x

Abstract: Among the tested parameters, water activity () and temperature have profound effects on the reactionFor the reaction in [BMIM]PF, higher temperature (50°C–55°C) and lower (<0.01) are preferable conditionstransfer limitation and intrinsic kinetic from the ionic nature of ionic liquids (ILs) may account for a differentrate-temperature profile and a lower velocity at lower temperature in [BMIM]PF-mediated reaction.

Keywords： ACN     stability     1-butyl-3-methylimidazolium hexafluorophosphate     different rate-temperature     alternative    

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The combined effects of biomass and temperature on maximum specific ammonia oxidation rate in domestic

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1411-9

Abstract:

• Actual SAORs was determined using MLVSS and temperature.

Keywords： Specific ammonia oxidation rate     Sequencing batch reactor     Biomass     Temperature coefficient     Model simulation    

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Influence of different oil feed rate on bituminous coal ignition in a full-scale tiny-oil ignition burner

Chunlong LIU, Qunyi ZHU, Zhengqi LI, Qiudong ZONG, Xiang ZHANG, Zhichao CHEN

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 406-412 doi: 10.1007/s11708-013-0266-6

Abstract: Through reacting-flow experiments performed on a full-scale experimental setup, the influence of differentUnder operating conditions with flow rates of 50, 100, and 150 kg/h, gas temperature distributions wereHowever on the burner centerline, distributions increased slightly with increasing flow rate.Different gas concentrations were measured at the center of the burner exit.At the same coal feed rate of 4 t/h, burner resistances are 480, 600, and 740 Pa for oil flow rates of

Keywords： ignition     coal     burner     boiler     oil flow rate    

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Modeling the gas flow in a cyclone separator at different temperature and pressure

Gujun WAN, Guogang SUN, Cuizhi GAO, Ruiqian DONG, Ying ZHENG, Mingxian SHI

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4,   Pages 498-505 doi: 10.1007/s11705-010-0502-0

Abstract: The gas flow field in a cyclone separator, operated within a temperature range of 293 K – 1373 K andThe computational results show that the temperature and pressure significantly influence the gas velocityThe temperature and pressure have a relatively weak influence on the axial velocity profiles.The outer downward flow rate increases with a temperature increase, whereas it decreases with a pressureand pressure on the tangential velocity, the downward flow rate in the cyclone and the centripetal radial

Keywords： cyclone separator     high temperature     high pressure     flow field     numerical simulation    

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Real-time tool condition monitoring method based on temperature measurement and artificial neural network

Frontiers of Mechanical Engineering doi: 10.1007/s11465-021-0661-3

Abstract: Here, a real-time tool condition monitoring method integrated in an in situ fiber optic temperatureintermittent cutting experiment is carried out, verifying that the apparatus can capture the rapid but slight temperatureA learning rate adaption algorithm is introduced, greatly reducing the dependence on initial parameters

Keywords： tool condition monitoring     cutting temperature     neural network     learning rate adaption    

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Impacts of different diameter combinations on the temperature of a crude oil pipeline when colocating

Bo YU, Yue SHI, Xin LIU, Jinjun ZHANG, Jinjia WEI,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 192-197 doi: 10.1007/s11708-009-0074-1

Abstract: In order to show the effects of different diameter combinations on crude oil temperature when a crudeAfter a series of calculations, the minimum mean temperature difference and the maximum temperature differenceIn real pipeline constructions, the effects of other diameter combinations on crude oil temperature can

Keywords： technology of laying two pipelines in one trench     diameter combinations     crude oil temperature     pipeline    

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Elastic modulus and thermal stress in coating during heat cycling with different substrate shapes

Daniel GAONA,Alfredo VALAREZO

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 3,   Pages 294-300 doi: 10.1007/s11465-015-0351-0

Abstract:

The elastic modulus of a deposit (Ed) can be obtained by monitoring the temperature

Keywords： in-plane     Young’s modulus     curvature temperature     thermal stress     coating    

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Characterization and catalytic properties of mesoporous CuO/SBA-16 prepared by different impregnation

DONG Yongli, YUAN Fulong, ZHU Yujun, ZHAO Lina, CAI Zhicheng

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 2,   Pages 150-154 doi: 10.1007/s11705-008-0036-x

Abstract: CuO/SBA-16 catalysts were prepared by two different routes – the conventional impregnation method andcharacterized by X-ray diffraction (XRD), atomic absorption spectrometry (AAS), N physisorption and hydrogen temperatureAfter introduction of Cu, a different CuO dispersion exists on these catalysts.

Keywords： different     CuO/SBA-16     temperature     physisorption     introduction    

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Applicability of the Arrhenius model for Ammonia Oxidizing Bacteria subjected to temperature time gradients

Alberto MANNUCCI,Giulio MUNZ,Gualtiero MORI,Claudio LUBELLO,Jan A. OLESZKIEWICZ

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6,   Pages 988-994 doi: 10.1007/s11783-014-0751-0

Abstract: The aim of this work is to identify the range of applicability of Arrhenius type temperature dependencedifferential titrimetric technique was used to continuously monitor the maximum biologic ammonia oxidation ratetitrimetric reactor in the temperature range 10°C–20°C.model for temperature dependency of AOB growth kinetics were assessed.decrease rate reached 4°C·h .

Keywords： nitrification rate     temperature effect     continuous titrimetric tests     time-gradient temperature variations    

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Dilution rate and microstructure of TIG arc Ni-Al powder surfacing layer

SHAN Jiguo, DONG Wei, TAN Wenda, ZHANG Di, REN Jialie

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 20-24 doi: 10.1007/s11465-007-0003-0

Abstract: With the aim of controlling the dilution rate and obtaining surfacing beads rich in intermetallic compounds, the effects of surfacing parameters on geometric parameters, dilution rate, composition, and microstructureAn assistant cooler, which can potentially reduce the temperature of the base metal, is used in the surfacingprocess and its effect on dilution rate and microstructure is studied.the surfacing process, the reinforcement of the bead increases, penetration decreases, and dilution rate

Keywords： decrease     Ni-Al     surfacing parameter     temperature     surfacing process    

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Calibration of catalyst temperature in automotive engines over coldstart operation in the presence ofdifferent random noises and uncertainty: Implementation of generalized Gaussian process regression machine

Nasser L. AZAD,Ahmad MOZAFFARI

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 4,   Pages 405-412 doi: 10.1007/s11465-015-0354-x

Abstract: to capture the undesired uncertainty and random noises on the key parameters affecting the catalyst temperaturecoldstart operation, calibration of the engine system’s variables, for instance the catalyst temperaturepossible to develop a practical calibration tool which can be reliably used for modeling the catalyst temperature

Keywords： automotive engine     calibration     coldstart operation     Gaussian process regression machine (GPRM)     uncertainty and random noises    

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Potassium carbonate-based ternary transition temperature mixture (deep eutectic analogues) for CO absorption

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1500-9

Abstract:

•Addition of hindered amine increased thermal stability and viscosity of TTTM.

Keywords： Ternary transition-temperature mixture     FT-IR and thermal stability analysis     Viscosity and correlationstudy     Eyring’s absolute rate theory     CO2 solubility     Density functional theory (DFT).    

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Long term performance of recycled concrete beams with different water–cement ratio and recycled aggregatereplacement rate

Jingwei YING; Feiming SU; Shuangren CHEN

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 3,   Pages 302-315 doi: 10.1007/s11709-022-0803-7

Abstract: this study is to reveal the service performance of recycled aggregate concrete (RAC) components for differentvalues of water−cement ratio and replacement rate of recycled coarse aggregate (RCA).Generally, the concrete strength decreases with the increase of the replacement rate of RCA, in orderto meet the strength requirements when changing the replacement rate of RCA, it is necessary to changeThe bearing capacity and the strain nephogram of samples under different loads were obtained using the

Keywords： recycled concrete     beam     the replacement rate of recycled coarse aggregate     water–cement ratio     digital    

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Control of the agglomeration of crystals in the reactive crystallization of 5-(difluoromethoxy)-2-mercapto-1

Yongli WANG, Shuyuan MA, Xiaodong Lü, Chuang XIE

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 4,   Pages 423-431 doi: 10.1007/s11705-012-1211-7

Abstract: We found that the low feeding rate of acetic acid, high crystallization temperature, low agitation rate

Keywords： )-2-mercapto-1H-benzimidazole (DMB)     reactive crystallization     agglomeration     feeding rate     crystallization temperature     agitation rate    

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Comparison of growth and lipid accumulation properties of two oleaginous microalgae under different nutrient

Qiao ZHANG,Yu HONG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 5,   Pages 703-709 doi: 10.1007/s11783-014-0649-x

Abstract: HQ, under different nutrient conditions.

Keywords： HQ     growth rate     algal biomass     lipid accumulation     triacylglycerols (TAGs)    

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Title Author Date Type Operation

Regioselective acylation of pyridoxine catalyzed by immobilized lipase in ionic liquid

BAI Shu, REN Mengyuan, WANG Lele, SUN Yan

Journal Article

The combined effects of biomass and temperature on maximum specific ammonia oxidation rate in domestic

Journal Article

Influence of different oil feed rate on bituminous coal ignition in a full-scale tiny-oil ignition burner

Chunlong LIU, Qunyi ZHU, Zhengqi LI, Qiudong ZONG, Xiang ZHANG, Zhichao CHEN

Journal Article

Modeling the gas flow in a cyclone separator at different temperature and pressure

Gujun WAN, Guogang SUN, Cuizhi GAO, Ruiqian DONG, Ying ZHENG, Mingxian SHI

Journal Article

Real-time tool condition monitoring method based on temperature measurement and artificial neural network

Journal Article

Impacts of different diameter combinations on the temperature of a crude oil pipeline when colocating

Bo YU, Yue SHI, Xin LIU, Jinjun ZHANG, Jinjia WEI,

Journal Article

Elastic modulus and thermal stress in coating during heat cycling with different substrate shapes

Daniel GAONA,Alfredo VALAREZO

Journal Article

Characterization and catalytic properties of mesoporous CuO/SBA-16 prepared by different impregnation

DONG Yongli, YUAN Fulong, ZHU Yujun, ZHAO Lina, CAI Zhicheng

Journal Article

Applicability of the Arrhenius model for Ammonia Oxidizing Bacteria subjected to temperature time gradients

Alberto MANNUCCI,Giulio MUNZ,Gualtiero MORI,Claudio LUBELLO,Jan A. OLESZKIEWICZ

Journal Article

Dilution rate and microstructure of TIG arc Ni-Al powder surfacing layer

SHAN Jiguo, DONG Wei, TAN Wenda, ZHANG Di, REN Jialie

Journal Article

Calibration of catalyst temperature in automotive engines over coldstart operation in the presence ofdifferent random noises and uncertainty: Implementation of generalized Gaussian process regression machine

Nasser L. AZAD,Ahmad MOZAFFARI

Journal Article

Potassium carbonate-based ternary transition temperature mixture (deep eutectic analogues) for CO absorption

Journal Article

Long term performance of recycled concrete beams with different water–cement ratio and recycled aggregatereplacement rate

Jingwei YING; Feiming SU; Shuangren CHEN

Journal Article

Control of the agglomeration of crystals in the reactive crystallization of 5-(difluoromethoxy)-2-mercapto-1

Yongli WANG, Shuyuan MA, Xiaodong Lü, Chuang XIE

Journal Article

Comparison of growth and lipid accumulation properties of two oleaginous microalgae under different nutrient

Qiao ZHANG,Yu HONG

Journal Article