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Effects of temperature on pyrolysis products of oil sludge

LIU Jianguo, SONG Wei, NIE Yongfeng

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 1,   Pages 8-14 doi: 10.1007/s11783-008-0030-z

Abstract: Temperature is the determining factor of pyrolysis, which is one of the alternative technologies forThe effects of final operating temperature ranging from 350 to 550°C on pyrolysis products of oil sludgeWith an increase of temperature, the mass fraction of solid residues, liquids, and gases in the finalproduct is 67.00%–56.00%, 25.60%–32.35%, and 7.40%–11.65%, and their corresponding heat values are 34.4from solid to liquid and gas phase (especially to liquid phase) during the process, and the optimum temperature

Keywords： sludge treatment     corresponding     Temperature     liquid     process    

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Numerical solution, simulation and testing of the thermal dynamic characteristics of ball-screws

XIA Junyong, HU Youmin, WU Bo, SHI Tielin

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 28-36 doi: 10.1007/s11465-008-0007-4

Abstract: This research focuses on the characteristics of how a ball-screw changes its temperature correspondingThe temperature distribution for the ball-screw at different times and directions is shown.By simulating and modeling the temperature field and thermal deformation of the ball-screw under periodically

Keywords： numerical solution     temperature corresponding     temperature distribution     end-most     ball-screw    

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Chaotic behavior of LNG after stratification in main stream region of storage tank

WANG Jingjing, MA Xiaoqian

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 514-518 doi: 10.1007/s11708-008-0076-4

Abstract: showed that when = 1.33, 106 < < 1470, chaos was obtained, which meant that the velocity field and the temperatureIn addition, the influence of temperature and scale factor on the solutions and the corresponding range

Keywords： Runge-Kutta     non-linear     corresponding     temperature     addition    

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Authors Notes Provided by Corresponding Authors

Frontiers of Engineering Management 2014, Volume 1, Issue 1,   Pages 115-118 doi: 10.15302/J-FEM-2014017

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Author Notes Provided by Corresponding Authors

Frontiers of Engineering Management 2016, Volume 3, Issue 1,   Pages 99-100 doi: 10.15302/J-FEM-2016012

Abstract:
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Author Notes Provided by Corresponding Authors

Frontiers of Engineering Management 2015, Volume 2, Issue 4,   Pages 393-394 doi: 10.15302/J-FEM-2015065

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Thermally developing forced convection and the corresponding thermal stresses in a porous plate channel

YANG Xiao, LIU Xuemei

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 57-61 doi: 10.1007/s11465-007-0009-7

Abstract: the fluid flow, the thermally developing forced convection of the local thermal equilibrium and the correspondingThe expressions of temperature, local Nusselt number and corresponding thermal stresses are obtainedFurthermore, influences of the P晱let number () and Brinkman number () on temperature, Nusselt number

Keywords： semi-infinite saturated     direction     interaction     skeleton     thermal equilibrium    

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Synthesis of p -substituted tetraphenylporphyrins and corresponding ferric complexes with mixed-solvents

Zhicheng SUN, Yuanbin SHE, Rugang ZHONG,

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 4,   Pages 457-461 doi: 10.1007/s11705-009-0169-6

Abstract: substituted benzaldehyde with pyrrole in mixed solvents (propionic acid, acetic acid and nitrobenzene), and corresponding

Keywords： -substituted tetraphenylporphyrin     condensation     -substituted benzaldehyde     dimethylformamide     metalation    

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Development of a hydrodynamic model and the corresponding virtual software for dual-loop circulating

Shanwei Hu, Xinhua Liu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 3,   Pages 579-590 doi: 10.1007/s11705-020-1953-6

Abstract: Based on the modularization strategy, corresponding interactive simulation software was further developed

Keywords： multi-loop circulating fluidized bed     mathematical modeling     energy minimization multiscale     virtual fluidization     mesoscale structure    

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review on anammox process for the treatment of antibiotic-containing wastewater: Linking effects with corresponding

Jinjin Fu, Quan Zhang, Baocheng Huang, Niansi Fan, Rencun Jin

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1309-y

Abstract: Abstract • Anammox is promising for nitrogen removal from antibiotic-containing wastewater. • Most antibiotics could inhibit the anammox performance and activity. • Antibiotic pressure promoted the increase in antibiotic resistance genes (ARGs). • Antibiotic-resistance mechanisms of anammox bacteria are speculated. Antibiotic is widely present in the effluent from livestock husbandry and the pharmaceutical industry. Antibiotics in wastewater usually have high biological toxicity and even promote the occurrence and transmission of antibiotic resistant bacteria and antibiotic resistance genes. Moreover, most antibiotic-containing wastewater contains high concentration of ammonia nitrogen. Improper treatment will lead to high risk to the surrounding environment and even human health. The anaerobic ammonium oxidation (anammox) with great economic benefit and good treatment effect is a promising process to remove nitrogen from antibiotic-containing wastewater. However, antibiotic inhibition has been observed in anammox applications. Therefore, a comprehensive overview of the single and combined effects of various antibiotics on the anammox system is conducted in this review with a focus on nitrogen removal performance, sludge properties, microbial community, antibiotic resistance genes and anammox-involved functional genes. Additionally, the influencing mechanism of antibiotics on anammox consortia is summarized. Remaining problems and future research needs are also proposed based on the presented summary. This review provides a better understanding of the influences of antibiotics on anammox and offers a direction to remove nitrogen from antibiotic-containing wastewater by the anammox process.

Keywords： Anammox     Antibiotic     Mechanism     Inhibition    

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Liquefaction-induced damage evaluation of earth embankment and corresponding countermeasure

Linlin GU; Wei ZHENG; Wenxuan ZHU; Zhen WANG; Xianzhang LING; Feng ZHANG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 9,   Pages 1183-1195 doi: 10.1007/s11709-022-0848-7

Abstract: Liquefaction of sandy soils is a big threat to the stability and the safety of an earth embankment laid on saturated soils. A large number of liquefaction-induced damages on embankment due to different types of earthquakes have been reported worldwide. In this research, the dynamic behaviors of earth embankment and the reinforcement effects of grouting as remediation method, subjected to moderate earthquake EQ1 and strong earthquake EQ2, were numerically investigated. The seismic behaviors of ground composed of cohesionless sandy soil and cohesive clayey soil were uniformly described by the cyclic mobility (CM) model, which is capable of describing accurately the mechanical property of the soil due to monotonic and cyclic loadings by accounting for stress-induced anisotropy, over-consolidation, and soil structure. It is known from the numerical investigation that the embankment would experience destructive deformation, and that the collapse mode was closely related to the properties of input seismic motion because high intensities and long durations of an earthquake motion could lead to significant plastic deformation and prolonged soil liquefaction. Under the strong seismic loading of EQ2, a circular collapse surface, combined with huge settlement and lateral spread, occurred inside the liquefication zone and extended towards the embankment crest. In contrast, in moderate earthquake EQ1, upheaval was observed at each toe of the embankment, and instability occurred only in the liquefied ground. An anti-liquefaction remediation via grouting was determined to significantly reduce liquefaction-induced deformation (settlement, lateral spreading, and local uplift) and restrain the deep-seated circular sliding failure, even though the top sandy soil liquefied in both earthquakes. When the structure was subjected to EQ2 motion, local failure occurred on the embankment slope reinforced with grouting, and thus, an additional appropriate countermeasure should be implemented to further strengthen the slope. For both input motions, the surface deformation of the considered embankment decreased gradually as the thickness of reinforcement was increased, although the reinforcement effect was no longer significant once the thickness exceeded 6 m.

Keywords： dynamic response     earth embankment     damage pattern     liquefaction     ground improvement    

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Effects of miR-200c on the migration and invasion abilities of human prostate cancer Du145 cells and the corresponding

Runlin Shi,Haibing Xiao,Tao Yang,Lei Chang,Yuanfeng Tian,Bolin Wu,Hua Xu

Frontiers of Medicine 2014, Volume 8, Issue 4,   Pages 456-463 doi: 10.1007/s11684-014-0353-z

Abstract:

microRNAs (miRNAs) have played a key role in human tumorigenesis, tumor progression, and metastasis. On the one hand, miRNAs are aberrantly expressed in many types of human cancer; on the other hand, miRNAs can function as tumor suppressors or oncogenes that target many cancer-related genes. This study aimed to investigate the effects of miRNA-200c (miR-200c) on the biological behavior and mechanism of proliferation, migration, and invasion in the prostate cancer cell line Du145. In this study, Du145 cells were transfected with miR-200c mimics or negative control miR-NC by using an X-tremeGENE siRNA transfection reagent. The relative expression of miR-200c was measured by RT-PCR. The proliferation, migration, and invasion abilities of Du145 cells were detected by CCK8 assays, migration assays and invasion assays, respectively. The expressions of ZEB1, E-cadherin, and vimentin were observed by western blot. Results showed that DU145 cells exhibited a high expression of miR-200c compared with immortalized normal prostate epithelial cell RWPE-1. Du145 cells were then transfected with miR-200c mimics and displayed lower abilities of proliferation, migration, and invasion than those transfected with the negative control. The protein levels of ZEB1 and vimentin were expressed at a low extent in Du145 cells, which were transfected with miR-200c mimics; by contrast, E-cadherin was highly expressed. Hence, miR-200c could significantly inhibit the proliferation of the prostate cancer cell line Du145; likewise, miR-200c could inhibit migration and invasion by epithelial-mesenchymal transition.

Keywords： miR-200c     proliferation     migration     invasion     prostate cancer     Du145 cell     ZEB1    

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Fuel optimal control of parallel hybrid electric vehicles

PU Jinhuan, YIN Chenliang, ZHANG Jianwu

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 3,   Pages 337-342 doi: 10.1007/s11465-008-0057-7

Abstract: A mathematical model for fuel optimal control and its corresponding dynamic programming (DP) recursive

Keywords： mathematical     Comparison     computational complexity     dimensionality     corresponding    

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Study on the surface-modification of nano-hydroxyapatite with lignin and the corresponding nanocomposite

Haojie Ding, Liuyun Jiang, Chunyan Tang, Shuo Tang, Bingli Ma, Na Zhang, Yue Wen, Yan Zhang, Liping Sheng, Shengpei Su, Xiang Hu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 3,   Pages 630-642 doi: 10.1007/s11705-020-1970-5

Abstract: To obtain nano-hydroxyapatite/poly(lactide-co-glycolide) (n-HA/PLGA) nanocomposite with superior mechanical properties, here, lignin was chosen to surface-modify for n-HA through co-precipitation method. The different reaction conditions of reaction time, phosphorus source, and the lignin addition amount were studied by fourier transformation infrared spectra, X-ray diffraction, the intuitionistic dispersion experiment, transmission electron microscope and thermal gravimetric analysis. The reaction mechanism and the best appropriate reaction condition were obtained. More importantly, the results of electromechanical universal tester, scanning electron microscope, differential scanning calorimetric analyzer, polarized optical microscopy and dynamic mechanical analysis confirmed that the obtained n-HA could greatly increase the mechanical strength of PLGA, owing to the excellent dispersion and promotion crystallization effect. Moreover, cell culture experimental results indicated that the n-HA surface-modified by lignin was favorable to improve the cell biocompatibility of PLGA. The study suggested that the introduction of lignin was a novel method to acquire a highly dispersed n-HA, which would provide a new idea to achieve the n-HA/PLGA nanocomposite as bone materials in future, and it would pave the way towards a new application of lignin in biomedical field.

Keywords： nanocomposite     poly (lactide-co-glycolide)     hydroxyapatite     mechanical property    

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Investigations concerning seismic response control of self-anchored suspension bridge with MR dampers

YANG Menggang, HU Jianhua

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 1,   Pages 43-48 doi: 10.1007/s11709-008-0011-0

Abstract: A corresponding computer program is developed and employed for studying the seismic response control

Keywords： longitudinal displacement     corresponding computer     excitation     phenomenological     self-anchored suspension    

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Title Author Date Type Operation

Effects of temperature on pyrolysis products of oil sludge

LIU Jianguo, SONG Wei, NIE Yongfeng

Journal Article

Numerical solution, simulation and testing of the thermal dynamic characteristics of ball-screws

XIA Junyong, HU Youmin, WU Bo, SHI Tielin

Journal Article

Chaotic behavior of LNG after stratification in main stream region of storage tank

WANG Jingjing, MA Xiaoqian

Journal Article

Authors Notes Provided by Corresponding Authors

Journal Article

Author Notes Provided by Corresponding Authors

Journal Article

Author Notes Provided by Corresponding Authors

Journal Article

Thermally developing forced convection and the corresponding thermal stresses in a porous plate channel

YANG Xiao, LIU Xuemei

Journal Article

Synthesis of p -substituted tetraphenylporphyrins and corresponding ferric complexes with mixed-solvents

Zhicheng SUN, Yuanbin SHE, Rugang ZHONG,

Journal Article

Development of a hydrodynamic model and the corresponding virtual software for dual-loop circulating

Shanwei Hu, Xinhua Liu

Journal Article

review on anammox process for the treatment of antibiotic-containing wastewater: Linking effects with corresponding

Jinjin Fu, Quan Zhang, Baocheng Huang, Niansi Fan, Rencun Jin

Journal Article

Liquefaction-induced damage evaluation of earth embankment and corresponding countermeasure

Linlin GU; Wei ZHENG; Wenxuan ZHU; Zhen WANG; Xianzhang LING; Feng ZHANG

Journal Article

Effects of miR-200c on the migration and invasion abilities of human prostate cancer Du145 cells and the corresponding

Runlin Shi,Haibing Xiao,Tao Yang,Lei Chang,Yuanfeng Tian,Bolin Wu,Hua Xu

Journal Article

Fuel optimal control of parallel hybrid electric vehicles

PU Jinhuan, YIN Chenliang, ZHANG Jianwu

Journal Article

Study on the surface-modification of nano-hydroxyapatite with lignin and the corresponding nanocomposite

Haojie Ding, Liuyun Jiang, Chunyan Tang, Shuo Tang, Bingli Ma, Na Zhang, Yue Wen, Yan Zhang, Liping Sheng, Shengpei Su, Xiang Hu

Journal Article

Investigations concerning seismic response control of self-anchored suspension bridge with MR dampers

YANG Menggang, HU Jianhua

Journal Article