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Evaluation of the influence of El NiñoSouthern Oscillation on air quality in southern China from long-term

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1460-0

Abstract:

•Strong ENSO influence on AOD is found in southern China region.

Keywords: El NiñoSouthern Oscillation     Aerosol concentration     Aerosol particle size     Contribution separation     Decadal trend     Southern China    

A Robustness Analysis of CMIP5 Models over the East Asia-Western North Pacific Domain

Tianjun Zhou, Xiaolong Chen, Bo Wu, Zhun Guo, Yong Sun, Liwei Zou, Wenmin Man, Lixia Zhang, Chao He

Engineering 2017, Volume 3, Issue 5,   Pages 773-778 doi: 10.1016/J.ENG.2017.05.018

Abstract: Weaknesses are also evident in simulations of the interannual amplitude, such as El Niño-SouthernOscillation (ENSO)-monsoon relationships.

Keywords: East Asian monsoon     Western North Pacific climate     El Niñ     o-Southern Oscillation     Past climate change    

Effects of MgO promoter on properties of Ni/Al2O3 catalysts for partial oxidation of methane to syngas

QIU Yejun, CHEN Jixiang, ZHANG Jiyan

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2,   Pages 167-171 doi: 10.1007/s11705-007-0031-7

Abstract: The effects of MgO promoter on the physico-chemical properties and catalytic performance of Ni/AlO catalystsThe suitable content of MgO promoter in Ni/AlO catalyst was ?7 wt-%.

Keywords: excessive     selectivity     decrease     dispersiveness     physico-chemical    

CH4 and N2O emissions from double-rice cropping system as affected by Chinese milkvetch and straw incorporation in southern China

Heshui XU,Dengyun LI,Bo ZHU,Kai ZHANG,Yadong YANG,Chen WANG,Ying JIANG,Zhaohai ZENG

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 1,   Pages 59-68 doi: 10.15302/J-FASE-2017137

Abstract: However, little is known about the integrated impacts of CMV and RS incorporation on CH and N O emissionsin double-rice cropping systems in southern China.the integrated impacts of CMV and RS incorporation in the early- and late-rice seasons on CH and N OCMV and/or RS incorporation produced equivalent or slightly more grain yield, while reducing N O emissionsresults demonstrate CMV and RS amendments replacing N fertilizer, maintained stable yield, mitigated N O

Keywords: Chinese milk vetch     CH4     double-rice cropping system     grain yield     N2O     rice straw    

Catalytic hydrolysis of gaseous HCN over Cu–Ni/γ-Al

Linxia Yan, Senlin Tian, Jian Zhou, Xin Yuan

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0872-8

Abstract: The Cu–Ni/γ-Al O catalyst was prepared to study HCN hydrolysis ?HCN removal is the highest at 480 min at a H O/HCN volume ratio of 150 ?efficiently hydrogen cyanide (HCN) in exhaust gas, g-Al O -supported bimetallic-based Cu–Ni catalystof CO or O on the HCN removal efficiency on the Cu–Ni/g-Al O catalyst were investigated.On catalyst calcined at 400°C, the efficiency reaches a maximum close to 99% at 480 min at a H O/HCN

Keywords: Hydrogen cyanide     Cu–Ni/g-Al2O3     Catalytic hydrolysis    

A novel hybrid cryptosystem based on DQFrFT watermarking and 3D-CLM encryption for healthcare services Research Article

Fatma KHALLAF, Walid EL-SHAFAI, El-Sayed M. EL-RABAIE, Naglaa F. SOLIMAN, Fathi E.Abd EL-SAMIE,fatma.mohammed333@gmail.com,eng.waled.elshafai@gmail.com,elsayedelrabaie@gmail.com,nfsoliman

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 7,   Pages 1045-1061 doi: 10.1631/FITEE.2200372

Abstract: algebra has been used to apply the fractional Fourier transform (FrFT) to color images in a comprehensive approach. However, the discrete fractional random transform (DFRNT) with adequate basic randomness remains to be examined. This paper presents a novel multistage privacy system for s based on discrete fractional Fourier transform (DQFrFT) watermarking and . First, we describe DFRNT (QDFRNT), which generalizes DFRNT to handle signals effectively, and then use QDFRNT to perform . To efficiently evaluate QDFRNT, this study derives the relationship between the QDFRNT of a signal and the four components of the DFRNT signal. Moreover, it uses the human vision system’s (HVS) masking qualities of edge, texture, and color tone immediately from the color host image to adaptively modify the watermark strength for each block in the using the QDFRNT-based and support vector machine (SVM) techniques. The limitations of watermark embedding are also explained to conserve watermarking energy. Second, 3D-CLM is employed to improve the system’s security and efficiency, allowing it to be used as a multistage privacy system. The proposed security system is effective against many types of channel noise attacks, according to simulation results.

Keywords: Color medical image     Quaternion     Adaptive watermarking     Encryption     Fractional transform     Three-dimensional chaotic logistic map (3D-CLM)    

Hydrophobic polyethersulfone porous membranes for membrane distillation

Heba ABDALLAH, Ayman EL-GENDI, Maaly KHEDR, Elham EL-ZANATI

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 1,   Pages 84-93 doi: 10.1007/s11705-015-1508-4

Abstract: Membrane distillation (MD) is a thermal, vapor-driven transportation process through micro porous hydrophobic membranes that is increasingly being applied to seawater and brine desalination processes. Two types of hydrophobic microporous polyethersulfone flat sheet membranes, namely, annealed polyethersulfone and a polyethersulfone/tetraethoxysilane (PES/TEOS) blend were prepared by a phase inversion process. The membranes were characterized and their performances were investigated using the vacuum membrane distillation of an aqueous NaCl solution. The performances of the prepared membranes were also compared with two commercially available hydrophobic membranes, polytetrafluorethylene and polyvinylidene fluoride. The influence of operational parameters such as feed temperature (25–65 °C), permeate vacuum pressure (200–800 mbar), feed flow rate (8–22 mL/s) and feed salt concentration (3000 to 35000 mg/L) on the MD permeation flux were investigated for the four membranes. The hydrophobic PES/TEOS membrane had the highest salt rejection (99.7%) and permeate flux (86 kg/m ·h) at 65 °C, with a feed of 7000 ppm and a pressure of 200 mbar.

Keywords: membrane distillation     hydrophobic membrane     salt rejection     permeate flux    

Fe - Ni - Co - Al2O3 Cermets Inert Anode for Aluminum Electrolysis

Qiu Zhuxian,Shi Zhongning,Xu Junli

Strategic Study of CAE 2004, Volume 6, Issue 8,   Pages 35-39

Abstract: The cell was built with a graphite cathode of 120 mm×40 mm×20 mm and a Fe - Ni - Co -Al2O3 cermet inert anode of 120 mm×80 mm×15 mm.The purity of aluminum metal produced was 98%〜99%, the impurities were mainly Fe, Ni and Co.The anode gas consisted of 98%〜99% O2 which was analyzed with an Orsat apparatus.the electrochemical reaction occurred in the electrolysis cell was the decomposition of Al2O<

Keywords: aluminum electrolysis     inert anode     back EMF value    

Efficient degradation of orange II by ZnMn

Qingzhuo Ni, Hao Cheng, Jianfeng Ma, Yong Kong, Sridhar Komarneni

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 956-966 doi: 10.1007/s11705-019-1907-z

Abstract: A ZnMn O catalyst has been synthesized via a sucrose-aided combustion method and characterized by variousThe recycling experiments indicate that the ZnMn O catalyst has high stability and reusability and isThe active species such as Mn(III), O , h , e , SO and HO are proposed to be responsible for the excellentdegradation results in the photo-chemical catalysis system with the ZnMn O catalyst.

Keywords: ZnMn2O4     photo-chemical catalysis     bisulfite     dye degradation    

CO2 methanation and co-methanation of CO and CO2 over Mn-promoted Ni/Al2O3 catalysts

Kechao Zhao,Zhenhua Li,Li Bian

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 2,   Pages 273-280 doi: 10.1007/s11705-016-1563-5

Abstract: A series of Mn-promoted 15 wt-% Ni/Al O catalysts were prepared by an incipient wetness impregnationThe effect of the Mn content on the activity of the Ni/Al O catalysts for CO methanation and the co-methanationThe Mn-promoted 15 wt-% Ni/Al O catalysts had improved CO methanation activity especially at low temperatures/Al O catalyst.The co-methanation tests on the 1.71Mn-Ni/Al O catalyst indicated that adding Mn markedly enhanced the

Keywords: Mn promotion     nickel catalysts     CO2 methanation     co-methanation of CO and CO2    

Numerical analysis of strongly nonlinear oscillation systems using He’s max-min method

H. BABAZADEH, G. DOMAIRRY, A. BARARI, R. AZAMI, A. G. DAVODI

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 4,   Pages 435-441 doi: 10.1007/s11465-011-0243-x

Abstract:

Nonlinear functions are crucial points and terms in engineering problems. Actual and physical problems can be solved by solving and processing such functions. Thus, most scientists and engineers focus on solving these equations. This paper presents a novel method called the max-min method for presenting an accurate approximate analytical solution to strong nonlinear oscillators. It can solve many linear or nonlinear differential equations without the tangible restriction of sensitivity to the degree of the nonlinear term. It is also quite convenient due to the reduction in the size of calculations. The algorithm suggests a promising approach and is systematically illustrated step by step.

Keywords: min-max method     nonlinear oscillation     duffing equation     mathematical pendulum     He’s energy balance method    

Parametric oscillation of cables and aerodynamic effect

Yong XIA, Jing ZHANG, Youlin XU, Yozo FUJINO,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 3,   Pages 321-325 doi: 10.1007/s11709-010-0028-z

Abstract: This paper addresses the aerodynamic effect on the nonlinear oscillation, particularly parametric vibration

Keywords: parametric vibration     cables     cable-stayed bridge     nonlinear vibration    

DQB1*060101 may contribute to susceptibility to immunoglobulin A nephropathy in southern Han Chinese

Wei Wang,Ming Li,Li Wang,Xueqing Yu

Frontiers of Medicine 2016, Volume 10, Issue 4,   Pages 507-516 doi: 10.1007/s11684-016-0475-6

Abstract: between HLA-DQB1 alleles and disease susceptibility and clinical manifestations of patients with IgAN in southern

Keywords: DQB1     human leukocyte antigen (HLA)     IgA nephropathy     haplotype     association study    

In situ-based assessment of soil liquefaction potential–Case study of an earth dam in Tunisia

Ikram GUETTAYA,Mohamed Ridha EL OUNI

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 4,   Pages 456-461 doi: 10.1007/s11709-014-0259-5

Abstract: The present paper examines the evaluation of liquefaction potential of an earth dam foundation in Tunisia. The assessment of soil liquefaction was made using deterministic and probabilistic simplified procedures developed from several case histories. The data collected from the field investigation performed before and after the vibrocompaction are analyzed and the results are reported. The obtained results show that after vibrocompaction, a significant improvement of the soil resistance reduces the liquefaction potential of the sandy foundation. Indeed, in the untreated layers, the factor of safety drops below 1 which means that the soil is susceptible for liquefaction. However, in the compacted horizons, the values of exceed the unit which justifies the absence of liquefaction hazard of the foundation.

Keywords: liquefaction     cone penetration test (CPT)     standard penetration test (SPT)     vibrcompaction     sand    

Cadmium pollution from phosphate fertilizers in arable soils and crops: an overview

Andrea Giovanna NIÑO-SAVALA, Zhong ZHUANG, Xin MA, Andreas FANGMEIER, Huafen LI, Aohan TANG, Xuejun LIU

Frontiers of Agricultural Science and Engineering 2019, Volume 6, Issue 4,   Pages 419-430 doi: 10.15302/J-FASE-2019273

Abstract:

The application of mineral and organic phosphorus fertilizers to arable land has greatly increased crop yield to meet the world food demand. On the other hand, impurities in these fertilizers, such as heavy metals, are being added to agricultural soils, resulting both from the raw materials themselves and the processes used to obtain the final product. Cadmium, a non-essential and toxic heavy metal, has been found in relatively high amounts in common P fertilizers obtained from sediments. This metal poses a high risk for soil fertility, crop cultivation, and plants in general. Furthermore, human health might be compromised by the cadmium concentrations in agricultural and livestock products, due to the bioaccumulation effect in the food web. The accumulation in the different matrixes is the result of the high mobility and flexible availability of this harmful metal. This review summarizes risks to human health, the factors influencing cadmium movement in soils and crop uptake, as well as common plant responses to its toxicity. In addition, it summarizes cadmium balances in soils, trends, long-term experiments, and further studies. Cadmium inputs and outputs in arable soil, together with their calculated concentrations, are compared between two different regions: the European countries (in particular Germany) and China. The comparison appears useful because of the different proportions in the inputs and outputs of cadmium, and the diverse geographical, environmental and social factors. Moreover, these variables and their influences on cadmium contamination improve the understanding of the pollution from phosphate fertilizers and will help to establish future mitigation policies.

Keywords: soil pollution     arable land     crop production     cadmium balance     P fertilizer     cadmium toxicity    

Title Author Date Type Operation

Evaluation of the influence of El NiñoSouthern Oscillation on air quality in southern China from long-term

Journal Article

A Robustness Analysis of CMIP5 Models over the East Asia-Western North Pacific Domain

Tianjun Zhou, Xiaolong Chen, Bo Wu, Zhun Guo, Yong Sun, Liwei Zou, Wenmin Man, Lixia Zhang, Chao He

Journal Article

Effects of MgO promoter on properties of Ni/Al2O3 catalysts for partial oxidation of methane to syngas

QIU Yejun, CHEN Jixiang, ZHANG Jiyan

Journal Article

CH4 and N2O emissions from double-rice cropping system as affected by Chinese milkvetch and straw incorporation in southern China

Heshui XU,Dengyun LI,Bo ZHU,Kai ZHANG,Yadong YANG,Chen WANG,Ying JIANG,Zhaohai ZENG

Journal Article

Catalytic hydrolysis of gaseous HCN over Cu–Ni/γ-Al

Linxia Yan, Senlin Tian, Jian Zhou, Xin Yuan

Journal Article

A novel hybrid cryptosystem based on DQFrFT watermarking and 3D-CLM encryption for healthcare services

Fatma KHALLAF, Walid EL-SHAFAI, El-Sayed M. EL-RABAIE, Naglaa F. SOLIMAN, Fathi E.Abd EL-SAMIE,fatma.mohammed333@gmail.com,eng.waled.elshafai@gmail.com,elsayedelrabaie@gmail.com,nfsoliman

Journal Article

Hydrophobic polyethersulfone porous membranes for membrane distillation

Heba ABDALLAH, Ayman EL-GENDI, Maaly KHEDR, Elham EL-ZANATI

Journal Article

Fe - Ni - Co - Al2O3 Cermets Inert Anode for Aluminum Electrolysis

Qiu Zhuxian,Shi Zhongning,Xu Junli

Journal Article

Efficient degradation of orange II by ZnMn

Qingzhuo Ni, Hao Cheng, Jianfeng Ma, Yong Kong, Sridhar Komarneni

Journal Article

CO2 methanation and co-methanation of CO and CO2 over Mn-promoted Ni/Al2O3 catalysts

Kechao Zhao,Zhenhua Li,Li Bian

Journal Article

Numerical analysis of strongly nonlinear oscillation systems using He’s max-min method

H. BABAZADEH, G. DOMAIRRY, A. BARARI, R. AZAMI, A. G. DAVODI

Journal Article

Parametric oscillation of cables and aerodynamic effect

Yong XIA, Jing ZHANG, Youlin XU, Yozo FUJINO,

Journal Article

DQB1*060101 may contribute to susceptibility to immunoglobulin A nephropathy in southern Han Chinese

Wei Wang,Ming Li,Li Wang,Xueqing Yu

Journal Article

In situ-based assessment of soil liquefaction potential–Case study of an earth dam in Tunisia

Ikram GUETTAYA,Mohamed Ridha EL OUNI

Journal Article

Cadmium pollution from phosphate fertilizers in arable soils and crops: an overview

Andrea Giovanna NIÑO-SAVALA, Zhong ZHUANG, Xin MA, Andreas FANGMEIER, Huafen LI, Aohan TANG, Xuejun LIU

Journal Article