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Influence of Fe on electrocatalytic activity of iron-nitrogen-doped carbon materials toward oxygen reduction reaction

Lin LI, Cehuang FU, Shuiyun SHEN, Fangling JIANG, Guanghua WEI, Junliang ZHANG

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 812-821 doi: 10.1007/s11708-020-0669-0

Abstract: a debate on the effect of Fe, and rare investigations focus on the influence of Fe addition in the secondheat treatment usually performed after acid leaching in the catalyst synthesis.speculated that Fe plays an important role in stabilizing N as well as constituting active sites in the second

Keywords： oxygen reduction reaction     Fe-N-C     active sites     Fe addition     second heat treatment    

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Electrocoagulation process for the treatment of metal-plating wastewater: Kinetic modeling and energy

Fatih Ilhan, Kubra Ulucan-Altuntas, Yasar Avsar, Ugur Kurt, Arslan Saral

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 5, doi: 10.1007/s11783-019-1152-1

Abstract: The wastewater from industrial area was treated by EC via Fe and Al electrodes. Cu, Ni, Cr and Zn were highly removed at the first minutes, simultaneously. Pseudo-2nd-order was found to be more suitable for kinetics. Adsorption capacities based on kinetic modeling were observed as Cr>Cu>Ni>Zn. The chemical cost in the case of pH adjustment after EC was less as 3.83 $/m3. It is known that wastewater produced by the metal-plating industry contains several heavy metals, which are acidic in nature and therefore toxic for the environment and for living creatures. In particular, heavy metals enter the food chain and accumulate in vital organs and cause serious illness. The precipitation of these metals is mostly achieved by pH adjustment, but as an alternative to this method, the electrocoagulation process has investigated in this study using iron and aluminum electrodes. The effects of the pH adjustment on removal before and after the electrocoagulation process were investigated, and cost analyses were also compared. It was observed that a high proportion of removal was obtained during the first minutes of the electrocoagulation process; thus, the current density did not have a great effect. In addition, the pH adjustment after the electrocoagulation process using iron electrodes, which are 10% more effective than aluminum electrodes, was found to be much more efficient than before the electrocoagulation process. In the process where kinetic modeling was applied, it was observed that the heavy metal removal mechanism was not solely due to the collapse of heavy metals at high pH values, and with this modeling, it was seen that this mechanism involved adsorption by iron and aluminum hydroxides formed during the electrocoagulation process. When comparing the ability of heavy metals to be adsorbed, the sequence was observed to be Cr>Cu>Ni>Zn, respectively.

Keywords： Electrochemical treatment     Heavy metals     Kinetic modeling     Pseudo first order kinetic     Pseudo second order    

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Mathematical Model of Heat Treatment and Its Computer Simulation

Pan Jiansheng,Zhan Weimin,Tian Dong,Gu Jianfeng,Hu Mingjuan

Strategic Study of CAE 2003, Volume 5, Issue 5,   Pages 47-54

Abstract:

Computer simulation on heat treatment is the foundation of intelligent heat treatment.improve the load-carrying ability and reliability of the nitriding and carburizing workpieces, reduce heattreatment distortion, and shorten carburizing duration.performed with the combination between the CAD of mechanical products, the CAE of materials selection and heattreatment, and the dynamic evaluation technology of product reliability.

Keywords： heat treatment     mathematical model     computer simulation     intellectualization    

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From plasma to plasmonics: toward sustainable and clean water production through membranes

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 1809-1836 doi: 10.1007/s11705-023-2339-3

Abstract: Membrane-based processes are among the most efficient methods for water treatment.To mitigate such effects, membranes can be treated through two techniques: plasma treatment (a surfacemodification technique), and treatment through the use of plasmonic materials (surface and bulk modificationIt aims to offer a comprehensive review of the current developments in membrane-based water treatment

Keywords： water treatment     membrane-based process     plasma treatment     plasma polymerization     plasmonic     light-to-heat    

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Study on Technology of Multistage Heat Treatment for Malleable iron

Zou Anquan,Deng Peiran,Deng Fenyan,Deng Junyan,Chen Geying

Strategic Study of CAE 2005, Volume 7, Issue 12,   Pages 74-77

Abstract:

Based on the characteristic of malleable iron, the technology of multistage heat treatment for malleable

Keywords： malleable iron     cementite     multistage heat treatment     graphitizing annealing    

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UNREDUCED MEGAGAMETOPHYTE FORMATION VIA SECOND DIVISION RESTITUTION CONTRIBUTES TO TETRAPLOID PRODUCTION

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 2,

Abstract: heterozygosity rates in 16 SNP loci and all 2n megagametophytes were less than 50%, indicating that second

Keywords： Citrus / 2n gamete / interploidy hybridization / pericentromeric SNP marker / second division restitution    

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High-order phase-field model with the local and second-order max-entropy approximants

Fatemeh AMIRI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 2,   Pages 406-416 doi: 10.1007/s11709-018-0475-5

Abstract: fracture surface energy functional based on phase-field method with smooth local maximum entropy (LME) and second-orderfourth-order phase-field equations without splitting the fourth-order differential equation into two second-order

Keywords： second-order maximum entropy     local maximum entropy     second- and fourth-order phase-field models     B-spline    

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Fundamentals of the Unified Technology Combining Plastic Forming and Heat Treatment of Materials

Xu Zuyao (T. Y. Hsu)

Strategic Study of CAE 2004, Volume 6, Issue 1,   Pages 16-21

Abstract:

Fundamentals of the unified technology combining plastic forming and heat treatment of materials mainly

Keywords： plastic forming-heat treatment     transformation under stresses     transformation modeling     structural simulation    

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Research on heat treatment process of 6016 aluminum alloy

Zhang Junping,Jin Qingsheng and Ma Mingtu

Strategic Study of CAE 2014, Volume 16, Issue 1,   Pages 103-107

Abstract:

Research on heat treatment process of 6016 aluminum alloy has been carried out by means of hardnessThe heat treatment process of 6016 alloy satisfying the demand of outer panel property is：540 ℃×20 min solution treatment + 120 ℃×10 min preaging.

Keywords： 6016 alloy     solution treatment     pre-aging treatment     bake-hardening    

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Model of SARS Analysis, Forecast, and Treatment Intelligence Decision Supporting System

Zhou Xingyu,Zhang Jiang,Liu Yang,Xie Yanqing,Zhang Ran,Zhao Yang,Hong Yuehua,He Zhongxiong

Strategic Study of CAE 2005, Volume 7, Issue 1,   Pages 69-75

Abstract: The system is divided into four parts： noise analysis subsystem, forecast and simulate subsystem, treatmentand control subsystem and second recovery subsystem.

Keywords： SARS     noise analysis     FGR forecast     treatment matching     second recovery    

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Numerical simulation of sudden-expansion two-phase flows with two-scale second-order moment particle

ZENG Zhuoxiong, HAN Shoulei, ZHOU Lixing

Frontiers in Energy 2007, Volume 1, Issue 2,   Pages 202-206 doi: 10.1007/s11708-007-0026-6

Abstract: A two-scale second-order moment particle turbulence model is developed, based on the concept of particleSimulation results are compared with the experimental results and with those obtained by the single-scale second-order

Keywords： gas-particle     single-scale second-order     large-scale fluctuation     second-order     sudden-expansion    

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UNREDUCED MEGAGAMETOPHYTE FORMATION VIA SECOND DIVISION RESTITUTION CONTRIBUTES TO TETRAPLOID PRODUCTION

Qiangming XIA, Wei WANG, Kaidong XIE, Xiaomeng WU, Xiuxin DENG, Jude W. GROSSER, Wenwu GUO

Frontiers of Agricultural Science and Engineering   Pages 302-313 doi: 10.15302/J-FASE-2021385

Abstract: heterozygosity rates in 16 SNP loci and all 2n megagametophytes were less than 50%, indicating that second

Keywords： Citrus     2n gamete     interploidy hybridization     pericentromeric SNP marker     second division restitution    

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What should be done for the “second half” of China’s urbanization?

Chunfei WU, Xiaojiang LI, Pengfei LI

Frontiers of Engineering Management 2018, Volume 5, Issue 2,   Pages 276-277 doi: 10.15302/J-FEM-2017106

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Emissions analysis on second generation biodiesel

Yuvarajan Devarajan,Ravi kumar Jayabal,Devanathan Ragupathy,Harish Venu

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 1, doi: 10.1007/s11783-017-0891-0

Abstract: CNSBD can be used as a fuel without any modification in existing CI engine. Pentanol reduces HC, CO, NO and Smoke emissions significantly. New and next generation alternative fuel is employed. Blending of CNSBD with pentanol resulted in no separation of phases and found miscible. This work investigates the effect of adding pentanol with biodiesel derived from cashew nut shell on its emissions characteristics is conducted in stationery diesel engine. The main purpose of this work is intended to reduce the emissions by fuelling biodiesel derived from cashew nut shell and the pentanol blends. Cashew nut shell biodiesel is prepared by transesterification process. Oxygenated additive used in the work is Pentanol. The experiment is conducted using four test fuels such as, biodiesel derived from cashew nut shell (CNSBD), a fuel containing 90% cashew nut shell biodiesel and 10% pentanol (CNSBD90P10), a fuel containing 80% cashew nut shell biodiesel and 20% pentanol (CNSBD80P20) and neat diesel. Experimental work concluded that by adding 10% of pentanol to cashew nut shell biodiesel 10.1%, 2.6%, 5.1% and 2.1%reduction in CO, HC, NO and Smoke emissions were observed respectively. Further by fueling with these blends, no modifications in engines were required.

Keywords： Pentanol     Biodiesel     Emissions    

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Absorption heat pump for waste heat reuse: current states and future development

Zhenyuan XU, Ruzhu WANG

Frontiers in Energy 2017, Volume 11, Issue 4,   Pages 414-436 doi: 10.1007/s11708-017-0507-1

Abstract: In this paper, three important aspects for absorption heat pump for waste heat reuse are reviewed.Absorption heat pumps for heat amplification and absorption heat transformer for temperature upgradingIn the second part, different working pairs, including the water based working pairs, ammonia based workingIn the third part, the applications of the absorption heat pump and absorption heat transformer for wasteheat reuse in different industries are introduced.

Keywords： absorption     heat pump     heat transformer     waste heat     working pair    

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Title Author Date Type Operation

Influence of Fe on electrocatalytic activity of iron-nitrogen-doped carbon materials toward oxygen reduction reaction

Lin LI, Cehuang FU, Shuiyun SHEN, Fangling JIANG, Guanghua WEI, Junliang ZHANG

Journal Article

Electrocoagulation process for the treatment of metal-plating wastewater: Kinetic modeling and energy

Fatih Ilhan, Kubra Ulucan-Altuntas, Yasar Avsar, Ugur Kurt, Arslan Saral

Journal Article

Mathematical Model of Heat Treatment and Its Computer Simulation

Pan Jiansheng,Zhan Weimin,Tian Dong,Gu Jianfeng,Hu Mingjuan

Journal Article

From plasma to plasmonics: toward sustainable and clean water production through membranes

Journal Article

Study on Technology of Multistage Heat Treatment for Malleable iron

Zou Anquan,Deng Peiran,Deng Fenyan,Deng Junyan,Chen Geying

Journal Article

UNREDUCED MEGAGAMETOPHYTE FORMATION VIA SECOND DIVISION RESTITUTION CONTRIBUTES TO TETRAPLOID PRODUCTION

Journal Article

High-order phase-field model with the local and second-order max-entropy approximants

Fatemeh AMIRI

Journal Article

Fundamentals of the Unified Technology Combining Plastic Forming and Heat Treatment of Materials

Xu Zuyao (T. Y. Hsu)

Journal Article

Research on heat treatment process of 6016 aluminum alloy

Zhang Junping,Jin Qingsheng and Ma Mingtu

Journal Article

Model of SARS Analysis, Forecast, and Treatment Intelligence Decision Supporting System

Zhou Xingyu,Zhang Jiang,Liu Yang,Xie Yanqing,Zhang Ran,Zhao Yang,Hong Yuehua,He Zhongxiong

Journal Article

Numerical simulation of sudden-expansion two-phase flows with two-scale second-order moment particle

ZENG Zhuoxiong, HAN Shoulei, ZHOU Lixing

Journal Article

UNREDUCED MEGAGAMETOPHYTE FORMATION VIA SECOND DIVISION RESTITUTION CONTRIBUTES TO TETRAPLOID PRODUCTION

Qiangming XIA, Wei WANG, Kaidong XIE, Xiaomeng WU, Xiuxin DENG, Jude W. GROSSER, Wenwu GUO

Journal Article

What should be done for the “second half” of China’s urbanization?

Chunfei WU, Xiaojiang LI, Pengfei LI

Journal Article

Emissions analysis on second generation biodiesel

Yuvarajan Devarajan,Ravi kumar Jayabal,Devanathan Ragupathy,Harish Venu

Journal Article

Absorption heat pump for waste heat reuse: current states and future development

Zhenyuan XU, Ruzhu WANG

Journal Article