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A review of low-temperature plasma-assisted machining: from mechanism to application

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0734-y

Abstract: After introducing the characteristics, classifications, and action mechanisms of the low-temperatureThe low-temperature plasma can be classified as hot plasma and cold plasma according to the differentHot plasma improves material machinability via the thermal softening effect induced by the high temperaturecold plasma can be summarized as chemical reactions to reduce material hardness, the hydrophilization effectto improve surface wettability, and the Rehbinder effect to promote fracture.

Keywords： low-temperature plasma     difficult-to-cut material     machinability     hydrophilization effect     Rehbindereffect    

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MHD effect on the critical temperature differences of oscillatory thermocapillary convection in two-layer

Hulin HUANG, Xiaoming ZHOU,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 155-160 doi: 10.1007/s11708-009-0063-4

Abstract: The effect of different directional magnetic fields on critical temperature differences of oscillatorydirections can delay the transition from steady convection to oscillatory convection, and critical temperatureFurthermore, the effect of a magnetic field along the direction is strongest, followed by that along

Keywords： magnetohydrodynamic     magnetic fields     thermocapillary convection     critical temperature difference     oscillatory    

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Evaluating the short-term effect of ambient temperature on non-fatal outdoor falls and road traffic injuries

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 9, doi: 10.1007/s11783-023-1705-1

Abstract:

● A study assessing the temperature-injury relationship was conducted

Keywords： Ambient temperature     Fall     Road traffic injury     Student     China    

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Effect of extrusion temperature on the physical properties of high-silicon aluminum alloy

YANG Fuliang, GAN Weiping, CHEN Zhaoke

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 120-124 doi: 10.1007/s11465-007-0021-y

Abstract: thermal expansion coefficients of the material are measured, and the relationship between extrusion temperaturewith this method is as high as 99.64% of the theory density, and increases with elevating extrusion temperatureAt the same time, thermal conductivity varies between 104-140 W/(m " K); with the extrusion temperature

Keywords： coefficient     hermeticity     temperature     relationship     air-atomization    

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Aspects of rock permeability

Lianyang ZHANG

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 2,   Pages 102-116 doi: 10.1007/s11709-013-0201-2

Abstract: The factors discussed include stress, depth, temperature, and discontinuity intensity and aperture.This paper also highlights the scale effect on rock permeability, interconnectivity of discontinuities

Keywords： rock     permeability     discontinuity     stress     temperature     scale effect     anisotropy    

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Short-term effect of temperature variation on the competition between PAOs and GAOs during acclimation

Nanqi REN, Han KANG, Xiuheng WANG, Nan LI

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 277-282 doi: 10.1007/s11783-010-0226-x

Abstract: for enhanced biological phosphorus removal (EBPR) processes was used to investigate the impact of the temperatureDuring the 34 days operation, SBR was set with temperature variation(0–5 d, 22±1°C; 6–13 d, 29±1°C; 14The results showed that the influence of temperature shock on PAOs’ abundance was more serious than thatAfter temperature shock, PAOs’ competitive advantages at low temperature that concluded in other studyAs mesophilic, GAOs (indicated by and ) were more temperature adaptive and better grew and took the

Keywords： fluorescent in situ hybridization (FISH)     tetrad forming organisms (TFOs)     temperature variation     enhanced    

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investigation of evolutive mode-I and mode-II fracture behavior of fiber-reinforced cemented paste backfill: Effectof curing temperature and curing time

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 2,   Pages 256-270 doi: 10.1007/s11709-022-0924-z

Abstract: The curing temperature-dependent cement hydration causes the nonlinear evolution of fracture behaviorTherefore, the coupled effect of curing temperature (20, 35, and 45 °C) and cement hydration at differentThe results show that the coupled thermochemical effect results in strongly nonlinear development ofFurthermore, predictive functions are developed to estimate the coupled thermochemical effect on the

Keywords： fiber reinforcement     cemented paste backfill     fracture behavior     underground mine     cement hydration    

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Effect of distributions of fuel concentration and temperature on ignition processes in a diesel PCCI

Yang YU, Wanhua SU,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 269-279 doi: 10.1007/s11708-009-0046-5

Abstract: The distributions of fuel concentration and temperature have significant effect on the ignition processesThe start of low temperature reactions occurred in the leaner area of the combustion chamber in the testengine because the temperature here first reached the point of low temperature reactions.Moreover, the appearance of highest combustion temperature occurred in the same area at the combustionFurthermore, V-type distribution of equivalence ratio was found to be beneficial to retarding high temperature

Keywords： PCCI     fuel stratification     multi-pulse injection     ignition    

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Promotional effect of ion-exchanged K on the low-temperature hydrothermal stability of Cu/SAPO-34 and

Chen Wang, Jun Wang, Jianqiang Wang, Meiqing Shen

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 2, doi: 10.1007/s11783-020-1322-1

Abstract: . • K+ on Cu/SAPO-34 brings lower acidity and inferior SCR activity at high temperature. • Fe/Beta wasused to compensate the low activity of Cu/SAPO-34 at high temperature. • The hybrid catalysts with KCuSCR activity as the fresh catalyst upon aging, an apparent decrease in SCR activity at high temperatureTo compensate for the activity disadvantage of K-loaded Cu/SAPO-34 at high temperature, Fe/Beta catalystswere co-employed with K-loaded Cu/SAPO-34, and a wide active temperature window of SCR activity was

Keywords： Selective catalytic reduction     Cu/SAPO-34 catalyst     Ion-exchanged K     Low-temperature hydrothermal stability    

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Thermal analysis of lubricated three-dimensional contact bodies considering interface roughness

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0672-8

Abstract: However, available studies mainly focus on the full-film lubrication conditions without considering temperaturerise and real 3D surface roughness due to the complexity of surface topography and temperature characteristicsIn this model, pressure and temperature are coupled with each other, the computation of elastic deformationis accelerated through the discrete convolution and fast Fourier transform method, the temperature fieldThe influences of surface roughness and thermal effect on lubrication performance are revealed.

Keywords： thermal elastohydrodynamic lubrication     surface roughness effect     thermal effect     temperature characteristics    

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of polyacrylamide (PAM) and methane production by mesophilic and thermophilic anaerobic digestion: Effectof temperature and concentration

Mona Akbar, Muhammad Farooq Saleem Khan, Ling Qian, Hui Wang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1277-2

Abstract: Abstract • PAM degradation in thermophilic AD in comparison with mesophilic AD. • PAM degradation and its impact on thermophilic and mesophilic AD. • Enhanced methane yield in presence of PAM during thermophilic and mesophilic AD. • PAM degradation and microbial community analysis in thermophilic and mesophilic AD. Polyacrylamide (PAM) is generally employed in wastewater treatment processes such as sludge dewatering and therefore exists in the sludge. Furthermore, it degrades slowly and can deteriorate methane yield during anaerobic digestion (AD). The impact or fate of PAM in AD under thermophilic conditions is still unclear. This study mainly focuses on PAM degradation and enhanced methane production from PAM-added sludge during 15 days of thermophilic (55°C) AD compared to mesophilic (35°C) AD. Sludge and PAM dose from 10 to 50 g/kg TSS were used. The results showed that PAM degraded by 76% to 78% with acrylamide (AM) content of 0.2 to 3.3 mg/L in thermophilic AD. However, it degraded only 27% to 30% with AM content of 0.5 to 7.2 mg/L in mesophilic AD. The methane yield was almost 230 to 238.4 mL/g VSS on the 8th day in thermophilic AD but was 115.2 to 128.6 mL/g VSS in mesophilic AD. Mechanism investigation revealed that thermophilic AD with continuous stirring not only enhanced PAM degradation but also boosted the organics release from the sludge with added PAM and gave higher methane yield than mesophilic AD.

Keywords： Polyacrylamide (PAM) degradation     Acrylamide (AM)     Mesophilic anaerobic digestion     Thermophilic anaerobic digestion     Methane production    

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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 dependencefor Ammonia Oxidizing Bacteria (AOB) subjected to temperature time gradients through continuous titrimetrictitrimetric reactor in the temperature range 10°C–20°C.model for temperature dependency of AOB growth kinetics were assessed.The Arrhenius model was found to be accurate only with temperature gradients lower than 2°C·h .

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

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Temperature effects of shape memory alloys (SMAs) in damage control design of steel portal frames

Xiaoqun LUO, Hanbin GE, Tsutomu USAMI

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 4,   Pages 348-357 doi: 10.1007/s11709-012-0176-4

Abstract: The objective of the present study is to analytically investigate temperature effects of an axial-typetypes of SMAs are employed, which have different stress plateau and different stress growth rate with temperatureTemperature effects of SMA dampers on seismic performance upgrading are discussed in three aspects: differentThe analysis indicates that the effect of environment temperature should be considered for the SMA damperHowever, the rapid loading rate induced heat generation has little adverse effect.

Keywords： damage control design     shape memory alloy     temperature effect    

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Effect of temperature in the conversion of methanol to olefins (MTO) using an extruded SAPO-34 catalyst

Ignacio Jorge Castellanos-Beltran, Gnouyaro Palla Assima, Jean-Michel Lavoie

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 2,   Pages 226-238 doi: 10.1007/s11705-018-1709-8

Abstract: Subsequently, E-SAPO-34 was tested in a temperature range between 300 and 500 °C, using an aqueous methanolAt higher temperatures, a quasi-steady state was reached during a 6 h reaction where the optimal temperature

Keywords： MTO     SAPO-34     temperature     extrusion     coke     light alkanes    

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Effect of K and Ca on catalytic activity of Mn-CeO

Boxiong SHEN, Lidan DENG, Jianhong CHEN

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 4,   Pages 512-517 doi: 10.1007/s11783-013-0519-y

Abstract: /Ti-pillared clay (PILC) is an attractive catalyst for selective catalytic reduction of NO at low temperatureTo investigate the effect of K and Ca on the physicochemical characters of the catalysts, the techniquesof NH -temperature programmed desorption (TPD), H -temperature programmed reduction (TPR), and X-ray)Mn-CeO /Ti-PILC and (K)Mn-CeO /Ti-PILC for NH -selective catalytic reduction (SCR) reaction at low temperaturethe catalysts, the SCR activities of the catalysts decreased greatly, and K exhibited more poisoning effect

Keywords： Mn-CeOx/Ti-pillared clay (PILC)     low-temperature selective catalytic reduction(SCR)     K and Ca poisoning effect    

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Title Author Date Type Operation

A review of low-temperature plasma-assisted machining: from mechanism to application

Journal Article

MHD effect on the critical temperature differences of oscillatory thermocapillary convection in two-layer

Hulin HUANG, Xiaoming ZHOU,

Journal Article

Evaluating the short-term effect of ambient temperature on non-fatal outdoor falls and road traffic injuries

Journal Article

Effect of extrusion temperature on the physical properties of high-silicon aluminum alloy

YANG Fuliang, GAN Weiping, CHEN Zhaoke

Journal Article

Aspects of rock permeability

Lianyang ZHANG

Journal Article

Short-term effect of temperature variation on the competition between PAOs and GAOs during acclimation

Nanqi REN, Han KANG, Xiuheng WANG, Nan LI

Journal Article

investigation of evolutive mode-I and mode-II fracture behavior of fiber-reinforced cemented paste backfill: Effectof curing temperature and curing time

Journal Article

Effect of distributions of fuel concentration and temperature on ignition processes in a diesel PCCI

Yang YU, Wanhua SU,

Journal Article

Promotional effect of ion-exchanged K on the low-temperature hydrothermal stability of Cu/SAPO-34 and

Chen Wang, Jun Wang, Jianqiang Wang, Meiqing Shen

Journal Article

Thermal analysis of lubricated three-dimensional contact bodies considering interface roughness

Journal Article

of polyacrylamide (PAM) and methane production by mesophilic and thermophilic anaerobic digestion: Effectof temperature and concentration

Mona Akbar, Muhammad Farooq Saleem Khan, Ling Qian, Hui Wang

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

Temperature effects of shape memory alloys (SMAs) in damage control design of steel portal frames

Xiaoqun LUO, Hanbin GE, Tsutomu USAMI

Journal Article

Effect of temperature in the conversion of methanol to olefins (MTO) using an extruded SAPO-34 catalyst

Ignacio Jorge Castellanos-Beltran, Gnouyaro Palla Assima, Jean-Michel Lavoie

Journal Article

Effect of K and Ca on catalytic activity of Mn-CeO

Boxiong SHEN, Lidan DENG, Jianhong CHEN

Journal Article