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Trends of chemical speciation profiles of anthropogenic volatile organic compounds emissions in China, 2005–2020

Wei WEI, Shuxiao WANG, Jiming HAO, Shuiyuan CHENG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 1,   Pages 27-41 doi: 10.1007/s11783-012-0461-4

Abstract: The chemical profiles of VOCs for seven activity sectors are calculated, based on which the PhotochemicalOzone Creation Potential (POCP) of VOCs for these sectors is evaluated.Thus, although the national VOCs emissions are expected to increase by 33% over the whole period, its ozoneformation potential is estimated to rise only by 14%.However, due to the large VOCs emissions from Chinese eastern region, the ozone formation potential of

Keywords： volatile organic compounds (VOCs)     chemical speciation     ozone formation     Photochemical Ozone Creation Potential    

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Photochemical indicators of ozone sensitivity: application in the Pearl River Delta, China

Lyumeng Ye,Xuemei Wang,Shaofeng Fan,Weihua Chen,Ming Chang,Shengzhen Zhou,Zhiyong Wu,Qi Fan

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0887-1

Abstract: Six popular ratios indicating ozone-precursor sensitivity, HCHO/NO , H O /HNO , O /NO , O /NO , O /HNOWRF-Chem was used to study a serious ozone episode in fall over the Pearl River Delta (PRD).All indicators produced good representations of the elevated ozone hours in the episode on 6 NovemberThe ozone episode on 16 November 16 2008 was used to independently verify the results, and it was foundthat only H O /HNO and H O /NO were able to differentiate the ozone sensitivity regime well.

Keywords： Ozone     Pearl River Delta (PRD)     Sensitivity regime     Photochemical indicator     Threshold levels    

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Precursors and potential sources of ground-level ozone in suburban Shanghai

Kun Zhang, Jialuo Xu, Qing Huang, Lei Zhou, Qingyan Fu, Yusen Duan, Guangli Xiu

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1271-8

Abstract: A high level of ozone (O3) is frequently observed in the suburbs of Shanghai, the reason for this high) model and concentration weighted trajectories (CWT), we found that Zhejiang province was the main potentialThe propylene-equivalent concentration (PEC) and ozone formation potential (OFP) were further calculatedThe Ozone Isopleth Plotting Research (OZIPR) model was used to reveal the impact of O3 precursors on

Keywords： Ozone     OZIPR     Volatile organic compounds     Shanghai     HYSPLIT    

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Surface modification of biomaterials by photochemical immobilization and photograft polymerization to

Yakai FENG, Haiyang ZHAO, Li ZHANG, Jintang GUO,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 3,   Pages 372-381 doi: 10.1007/s11705-010-0005-z

Abstract: progresses and strategies to improve the hemocompatibility of biomaterials by surface modification using photochemical

Keywords： biomimetic amphiphilic     amphiphilic phosphorylcholine     endothelial     functional     biomaterial    

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Structure creation in earthen construction materials: information from dry soil mixtures

Christopher BECKETT, Charles AUGARDE

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 151-159 doi: 10.1007/s11709-011-0109-7

Abstract: There is increasing interest in the use of earthen construction materials, such as rammed earth, due to their inherent sustainability. These materials have been used by man for thousands of years and some of the earliest examples can be found in China. Features of the structures of these materials arise from the means of production. In particular, in situ earthen construction materials exhibit strong anisotropy due to their layered nature. A more subtle structure effect arises from the way that the earth mixture is deposited. This paper reviews and discusses stratification effects in dry soil mixtures, including some original experimental work, and indicates some links between the features of the dry mixtures and earthen construction materials. Improved understanding of the physical processes in play will allow more accurate specification of these materials in the future, and hence spread their use.

Keywords： rammed earth     stratification     particle size distribution     pore size distribution    

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and bacteriophage MS2 disinfection by UV, ozone and the combined UV and ozone processes

Jingyun FANG,Huiling LIU,Chii SHANG,Minzhen ZENG,Mengling NI,Wei LIU

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 4,   Pages 547-552 doi: 10.1007/s11783-013-0620-2

Abstract: However, less is known about the disinfection performance of UV and ozone (UV/ozone) coexposure and sequentialUV-followed-by-ozone (UV-ozone) and ozone-followed-by-UV (ozone-UV) exposures.In this study, inactivation of and bacteriophage MS2 by UV, ozone, UV/ozone coexposure, and sequentialUV-ozone and ozone-UV exposures was investigated and compared.Little enhancement on inactivation was found after the sequential UV-ozone or ozone-UV exposures.

Keywords： bacteria inactivation     photoreactivation     water disinfection     UV     ozone    

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Identification of sources, characteristics and photochemical transformations of dissolved organic matter

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-020-1340-z

Abstract:

• The source of DOM in surface water and sediment is inconsistent.

Keywords： Dissolved organic matter     Parallel factor analysis     Excitation-emission matrices     Photodegradation    

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Collaborative control of fine particles and ozone required in China for health benefit

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1692-2

Abstract:

● Increased DAAO offsets 3/4 of the decrease of DAAP in 2013–2020.

Keywords： Excess deaths     Long-term exposure     Fine particle     Ozone    

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Elucidate long-term changes of ozone in Shanghai based on an integrated machine learning method

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 11, doi: 10.1007/s11783-023-1738-5

Abstract:

● A novel integrated machine learning method to analyze O3 changes is proposed.

Keywords： Ozone     Integrated method     Machine learning    

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Self-propelled automatic chassis of Lunokhod-1: History of creation in episodes

Mikhail MALENKOV

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 1,   Pages 60-86 doi: 10.1007/s11465-016-0370-5

Abstract:

This report reviews the most important episodes in the history of designing the self-propelled automatic chassis of the first mobile extraterrestrial vehicle in the world, Lunokhod-1. The review considers the issues in designing moon rovers, their essential features, and the particular construction properties of their systems, mechanisms, units, and assemblies. It presents the results of exploiting the chassis of Lunokhod-1 and Lunokhod-2. Analysis of the approaches utilized and engineering solutions reveals their value as well as the consequences of certain defects.

Keywords： moon rover     self-propelled chassis     propulsion     wheel     suspension     soil properties     cross-country ability    

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State-owned companies can become the mainstay of spontaneous creation

Gu Dazhao

Strategic Study of CAE 2008, Volume 10, Issue 10,   Pages 9-13

Abstract: conclusion that the state-owned companies are able to lead by becoming the mainstay of spontaneous creationenthusiasm of companies, technology managers and research and development staff of companies for technical creationCombined the successful experience of the Shenhua Group, a new model of company spontaneous creation

Keywords： state-owned company     technical creation     resource integration    

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Prediction and cause investigation of ozone based on a double-stage attention mechanism recurrent neural

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 2, doi: 10.1007/s11783-023-1621-4

Abstract:

● Used a double-stage attention mechanism model to predict ozone.

Keywords： Ozone prediction     Deep learning     Time series     Attention     Volatile organic compounds    

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Catalytic decomposition of low level ozone with gold nanoparticles supported on activated carbon

Pengyi ZHANG , Bo ZHANG , Rui SHI ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3,   Pages 281-288 doi: 10.1007/s11783-009-0032-5

Abstract: by a sol immobilization method and were used to investigate their catalytic activity for low-level ozoneand X-ray photoelectron spectroscopy (XPS) were used to characterize the catalysts before and after ozonehumidity of 45%, the Au/AC catalyst maintained the ozone removal ratio at 90.7% after 2500minAfter being used for ozone decomposition, the surface carbon of the catalyst was partly oxidized andOzone was mainly catalytically decomposed by the gold nanoparticles supported on the activated carbon

Keywords： ozone decomposition     activated carbon     gold nanoparticles     catalysis     sodium citrate     microwave    

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Combined process of biofiltration and ozone oxidation as an advanced treatment process for wastewater

Xinwei LI,Hanchang SHI,Kuixiao LI,Liang ZHANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6,   Pages 1076-1083 doi: 10.1007/s11783-015-0770-5

Abstract: The effluent of a wastewater treatment plant was treated in a pilot plant for reclaimed water production through the denitrification biofilter (DNBF) process, ozonation (O ), and biologic aerated filtration (BAF). The combined process demonstrated good removal performance of conventional pollutants, including concentrations of chemical oxygen demand (27.8 mg·L ) and total nitrogen (9.9 mg·L ) in the final effluent, which met the local discharge standards and water reuse purposes. Micropollutants (e.g., antibiotics and endocrine-disrupting chemicals) were also significantly removed during the proposed process. Ozonation exhibited high antibiotic removal efficiencies, especially for tetracycline (94%). However, micropollutant removal efficiency was negatively affected by the nitrite produced by DNBF. Acute toxicity variations of the combined process were estimated by utilizing luminescent bacteria. Inhibition rate increased from 9% to 15% during ozonation. Carbonyl compound concentrations (e.g., aldehydes and ketones) also increased by 58% as by-products, which consequently increased toxicity. However, toxicity eventually became as low as that of the influent because the by-products were effectively removed by BAF. The combined DNBF/O /BAF process is suitable for the advanced treatment of reclaimed water because it can thoroughly remove pollutants and toxicity.

Keywords： wastewater treatment     micropollutant removal     ozonation     biofiltration     toxicity    

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Pyrene partition behavior to the NOM: Effect of NOM characteristics and its modification by ozone preoxidation

Jin GUO, Jun MA

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 1,   Pages 56-61 doi: 10.1007/s11783-009-0003-x

Abstract: The effects of solution property, NOM characteristics, and modification by ozone preoxidation on pyrene

Keywords： natural organic matters (NOM)     pyrene     partition coefficient     ozone    

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Title Author Date Type Operation

Trends of chemical speciation profiles of anthropogenic volatile organic compounds emissions in China, 2005–2020

Wei WEI, Shuxiao WANG, Jiming HAO, Shuiyuan CHENG

Journal Article

Photochemical indicators of ozone sensitivity: application in the Pearl River Delta, China

Lyumeng Ye,Xuemei Wang,Shaofeng Fan,Weihua Chen,Ming Chang,Shengzhen Zhou,Zhiyong Wu,Qi Fan

Journal Article

Precursors and potential sources of ground-level ozone in suburban Shanghai

Kun Zhang, Jialuo Xu, Qing Huang, Lei Zhou, Qingyan Fu, Yusen Duan, Guangli Xiu

Journal Article

Surface modification of biomaterials by photochemical immobilization and photograft polymerization to

Yakai FENG, Haiyang ZHAO, Li ZHANG, Jintang GUO,

Journal Article

Structure creation in earthen construction materials: information from dry soil mixtures

Christopher BECKETT, Charles AUGARDE

Journal Article

and bacteriophage MS2 disinfection by UV, ozone and the combined UV and ozone processes

Jingyun FANG,Huiling LIU,Chii SHANG,Minzhen ZENG,Mengling NI,Wei LIU

Journal Article

Identification of sources, characteristics and photochemical transformations of dissolved organic matter

Journal Article

Collaborative control of fine particles and ozone required in China for health benefit

Journal Article

Elucidate long-term changes of ozone in Shanghai based on an integrated machine learning method

Journal Article

Self-propelled automatic chassis of Lunokhod-1: History of creation in episodes

Mikhail MALENKOV

Journal Article

State-owned companies can become the mainstay of spontaneous creation

Gu Dazhao

Journal Article

Prediction and cause investigation of ozone based on a double-stage attention mechanism recurrent neural

Journal Article

Catalytic decomposition of low level ozone with gold nanoparticles supported on activated carbon

Pengyi ZHANG , Bo ZHANG , Rui SHI ,

Journal Article

Combined process of biofiltration and ozone oxidation as an advanced treatment process for wastewater

Xinwei LI,Hanchang SHI,Kuixiao LI,Liang ZHANG

Journal Article

Pyrene partition behavior to the NOM: Effect of NOM characteristics and its modification by ozone preoxidation

Jin GUO, Jun MA

Journal Article