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The main and added effects of heat on mortality in 33 Chinese cities from 2007 to 2013

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 7, doi: 10.1007/s11783-023-1681-5

Abstract:

● The main and added effect from heat co-existed in China.

Keywords： Heat     Main effect     Added effect     Mortality     Vulnerable population    

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The Value Added Tax Anti-Fake and Control System and Its Security Design

Wei Qingfu

Strategic Study of CAE 2000, Volume 2, Issue 11,   Pages 84-87

Abstract:

The Value Added Tax (AVT) anti-fake and control system, which is one of the main parts of the National

Keywords： value-added tax     anti-fake     encryption     security    

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On the added value of multi-scale modeling of concrete

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 1,   Pages 1-23 doi: 10.1007/s11709-021-0790-0

Abstract: This review of the added value of multi-scale modeling of concrete is based on three representative examplesOverall, it is concluded that multi-scale models have indeed a significant added value.

Keywords： experiments     multi-scale analysis     conventional structural analysis     concrete     reinforced concrete    

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Innovative seismic retrofitting strategy of added stories isolation system

Min-Ho CHEY, J. Geoffrey CHASE, John B. MANDER, Athol J. CARR

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 1,   Pages 13-23 doi: 10.1007/s11709-013-0195-9

Abstract: The seismic performance of “added stories isolation” (ASI) systems are investigated for 12-story momentThe newly added and isolated upper stories on the top of the existing structure are rolled to act asSpecific results include the identification of differences in the number of added story by which the

Keywords： added stories     seismic isolation     tuned mass damper     parametric optimization     statistical method    

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Characterization of value-added chemicals derived from the thermal hydrolysis and wet oxidation of sewage

Milan Malhotra, Anurag Garg

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1305-2

Abstract: We evaluated the effect of hydrothermal pretreatments, i.e., thermal hydrolysis (TH) and wet oxidationThe future study should focus on the development of economic recovery methods for various value-added

Keywords： Hydrothermal pretreatment     Reaction kinetics     Reaction pathway     Sewage sludge     Thermal hydrolysis     Wet oxidation    

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Field evidence of decreased extractability of copper and nickel added to soils in 6-year field experiments

Bao Jiang, Dechun Su, Xiaoqing Wang, Jifang Liu, Yibing Ma

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 2, doi: 10.1007/s11783-017-0990-y

Abstract: The phytotoxicity of added copper (Cu) and nickel (Ni) is influenced by soil properties and field agingTherefore, this study was conducted to investigate the extractability of added Cu and Ni in 6-year fieldThe results showed that the extractability of added Cu decreased by 6.63% (5.10%–7.90%), 22.5% (20.6%on average for acidic, neutral, and alkaline soil from 1 to 6 years, although the phytotoxicity of addedThe sum of ten sequential extractions of Cu and Ni showed that added Cu was more extractable than Ni

Keywords： Copper     Nickel     EDTA     Sequential extraction    

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Clean Burning Process of Coal Which Converts Pollutants into Value-added Products

Zhu Xuefang

Strategic Study of CAE 1999, Volume 1, Issue 1,   Pages 53-57

Abstract: The new technology of clean burning of coal and simultaneously converting the resultants into value-added

Keywords： clean burning     turning resultants into value-added products     quick burning and quick cooling     solid desulfurization    

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Corrosion behavior of Fe–Cr–Ni based alloys exposed to molten MgCl2–KCl–NaCl salt with over-added

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1608-1619 doi: 10.1007/s11705-023-2349-1

Abstract: corroded after 500 h immersion test at 700 °C when the alloy samples directly contacted with the over-added

Keywords： concentrated solar power (CSP)     Mg corrosion inhibitor     Mg–Ni intermetallic     salt purification     thermal energy storage (TES)    

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A combination process of mineral carbonation with SO2 disposal for simulated flue gas by magnesia-added

Yingying Zhao, Mengfan Wu, Zhiyong Ji, Yuanyuan Wang, Jiale Li, Jianlu Liu, Junsheng Yuan

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 4,   Pages 832-844 doi: 10.1007/s11705-019-1871-7

Abstract: The desulfurization by seawater and mineral carbonation have been paid more and more attention. In this study, the feasibility of magnesia and seawater for the integrated disposal of SO and CO in the simulated flue gas was investigated. The process was conducted by adding MgO in seawater to reinforce the absorption of SO and facilitate the mineralization of CO by calcium ions. The influences of various factors, including digestion time of magnesia, reaction temperature, and salinity were also investigated. The results show that the reaction temperature can effectively improve the carbonation reaction. After combing SO removal process with mineral carbonation, Ca removal rate has a certain degree of decrease. The best carbonation condition is to use 1.5 times artificial seawater (the concentrations of reagents are 1.5 times of seawater) at 80°C and without digestion of magnesia. The desulfurization rate is close to 100% under any condition investigated, indicating that the seawater has a sufficient desulfurization capacity with adding magnesia. This work has demonstrated that a combination of the absorption of SO with the absorption and mineralization of CO is feasible.

Keywords： mineral carbonation     wet SO2 disposal     seawater     desulfurization    

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Recycling polymeric waste from electronic and automotive sectors into value added products

Abhishek Kumar, Veena Choudhary, Rita Khanna, Romina Cayumil, Muhammad Ikram-ul-Haq, Veena Sahajwalla, Shiva Kumar I. Angadi, Ganapathy E. Paruthy, Partha S. Mukherjee, Miles Park

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 5, doi: 10.1007/s11783-017-0991-x

Abstract: The environmentally sustainable disposal and recycling of ever increasing volumes of electronic waste has become global waste management issue. The addition of up to 25% polymeric waste PCBs (printed circuit boards) as fillers in polypropylene (PP) composites was partially successful: while the tensile modulus, flexural strength and flexural modulus of composites were enhanced, the tensile and impact strengths were found to decrease. As a lowering of impact strength can significantly limit the application of PP based composites, it is necessary to incorporate impact modifying polymers such as rubbery particles in the mix. We report on a novel investigation on the simultaneous utilization of electronic and automotive rubber waste as fillers in PP composites. These composites were prepared by using 25 wt.% polymeric PCB powder, up to 9% of ethylene propylene rubber (EPR), and PP: balance. The influence of EPR on the structural, thermal, mechanical and rheological properties of PP/PCB/EPR composites was investigated. While the addition of EPR caused the nucleation of the β crystalline phase of PP, the onset temperature for thermal degradation was found to decrease by 8%. The tensile modulus and strength decreased by 16% and 19%, respectively; and the elongation at break increased by ~71%. The impact strength showed a maximum increase of ~18% at 7 wt.%–9 wt.% EPR content. Various rheological properties were found to be well within the range of processing limits. This novel eco-friendly approach could help utilize significant amounts of polymeric electronic and automotive waste for fabricating valuable polymer composites.

Keywords： E-waste     Polymer composites     Recycling     Rubber     Waste PCBs     Filler    

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Electrochemical CO reduction to C products over CuZn intermetallic catalysts synthesized by electrodeposition

Frontiers in Energy doi: 10.1007/s11708-023-0898-0

Abstract: Electrocatalytic CO2 reduction (ECR) offers an attractive approach to realizing carbon neutrality and producing valuable chemicals and fuels using CO2 as the feedstock. However, the lack of cost-effective electrocatalysts with better performances has seriously hindered its application. Herein, a one-step co-electrodeposition method was used to introduce Zn, a metal with weak *CO binding energy, into Cu to form Cu/Zn intermetallic catalysts (Cu/Zn IMCs). It was shown that, using an H-cell, the high Faradaic efficiency of C2+ hydrocarbons/alcohols (FEC2+) could be achieved in ECR by adjusting the surface metal components and the applied potential. In suitable conditions, FEC2+ and current density could be as high as 75% and 40 mA/cm2, respectively. Compared with the Cu catalyst, the Cu/Zn IMCs have a lower interfacial charge transfer resistance and a larger electrochemically active surface area (ECSA), which accelerate the reaction. Moreover, the *CO formed on Zn sites can move to Cu sites due to its weak binding with *CO, and thus enhance the C–C coupling on the Cu surface to form C2+ products.

Keywords： carbon dioxide electroreduction     electrochemistry     co-electrodeposition     intermetallic catalysts     value-added    

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Study on the Oscillation of a Uniform Cylinder in Front of Two Vertical Walls Intersecting Normally

Ning Dezhi,Teng Bin

Strategic Study of CAE 2003, Volume 5, Issue 5,   Pages 84-91

Abstract: to examine the influence of the distances between the cylinder and the walls and water depth on the addedThe calculation shows that the added mass and radiation damping of the cylinder in front of the two verticalThe added mass and radiation damping oscillate with wave number, and the oscillating frequency increasesFurthermore, the added masses and radiation damping are linear with the water depth in the range of low

Keywords： added mass     radiation damping     image theory     vertical wall     cylinder    

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Analysis of effect of different construction methods of piles on the end effect on skin friction of piles

ZHOU Hongbo, CHEN Zhuchang

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 4,   Pages 458-463 doi: 10.1007/s11709-007-0062-7

Abstract: Based on the comparative analysis of end effect on skin friction of displacement-pile (driven pile),the end effect on skin friction of bored pile is studied.The end effect on skin friction between driven pile and bored pile is different and the end effect onThe concept of additional mud cake formed by the effect of cushion at the bottom of borehole during pouringconcrete is introduced to explain the mechanism of end effect on skin friction of the bored pile.

Keywords： distance     different     concept     additional     bottom    

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Modularized Production of Value-Added Products and Fuels from Distributed Waste Carbon-Rich Feedstocks Perspective

Robert S. Weber, Johnathan E. Holladay

Engineering 2018, Volume 4, Issue 3,   Pages 330-335 doi: 10.1016/j.eng.2018.05.012

Abstract:

We have adapted and characterized electrolysis reactors to complement the conversion of regional- and community-scale quantities of waste into fuel or chemicals. The overall process must be able to contend with a wide range of feedstocks, must be inherently safe, and should not rely on external facilities for co-reactants or heat rejection and supply. Our current approach is based on the upgrading of bio-oil produced by the hydrothermal liquefaction (HTL) of carbon-containing waste feedstocks. HTL can convert a variety of feedstocks into a bio-oil that requires much less upgrading than the products of other ways of deconstructing biomass. We are now investigating the use of electrochemical processes for the further conversions needed to transform the bio-oil from HTL into fuel or higher value chemicals. We, and others, have shown that electrochemical reduction can offer adequate reaction rates and at least some of the necessary generality. In addition, an electrochemical reactor necessarily both oxidizes (removes electrons) on one side of the reactor and reduces (adds electrons) on the other side. Therefore, the two types of reactions could, in principle, be coupled to upgrade the bio-oil and simultaneously polish the water that is employed as a reactant and a carrier in the upstream HTL. Here, we overview a notional process, the possible conversion chemistry, and the economics of an HTL-electrochemical process.

Keywords： Reducing generation and discharge of     pollutants     Chemical engineering    

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Title Author Date Type Operation

The main and added effects of heat on mortality in 33 Chinese cities from 2007 to 2013

Journal Article

The Value Added Tax Anti-Fake and Control System and Its Security Design

Wei Qingfu

Journal Article

On the added value of multi-scale modeling of concrete

Journal Article

Innovative seismic retrofitting strategy of added stories isolation system

Min-Ho CHEY, J. Geoffrey CHASE, John B. MANDER, Athol J. CARR

Journal Article

Characterization of value-added chemicals derived from the thermal hydrolysis and wet oxidation of sewage

Milan Malhotra, Anurag Garg

Journal Article

Field evidence of decreased extractability of copper and nickel added to soils in 6-year field experiments

Bao Jiang, Dechun Su, Xiaoqing Wang, Jifang Liu, Yibing Ma

Journal Article

Clean Burning Process of Coal Which Converts Pollutants into Value-added Products

Zhu Xuefang

Journal Article

Corrosion behavior of Fe–Cr–Ni based alloys exposed to molten MgCl2–KCl–NaCl salt with over-added

Journal Article

A combination process of mineral carbonation with SO2 disposal for simulated flue gas by magnesia-added

Yingying Zhao, Mengfan Wu, Zhiyong Ji, Yuanyuan Wang, Jiale Li, Jianlu Liu, Junsheng Yuan

Journal Article

Recycling polymeric waste from electronic and automotive sectors into value added products

Abhishek Kumar, Veena Choudhary, Rita Khanna, Romina Cayumil, Muhammad Ikram-ul-Haq, Veena Sahajwalla, Shiva Kumar I. Angadi, Ganapathy E. Paruthy, Partha S. Mukherjee, Miles Park

Journal Article

Electrochemical CO reduction to C products over CuZn intermetallic catalysts synthesized by electrodeposition

Journal Article

Study on the Oscillation of a Uniform Cylinder in Front of Two Vertical Walls Intersecting Normally

Ning Dezhi,Teng Bin

Journal Article

Li Haoran: Research on the Transformation Decision of "Replacing Coal With Gas" Based on Peer Effectand Network Effect (2020-7-11)

19 May 2022

Conference Videos

Analysis of effect of different construction methods of piles on the end effect on skin friction of piles

ZHOU Hongbo, CHEN Zhuchang

Journal Article

Modularized Production of Value-Added Products and Fuels from Distributed Waste Carbon-Rich Feedstocks

Robert S. Weber, Johnathan E. Holladay

Journal Article