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Effect of mineral additives and permeability reducing admixtures having different action mechanisms on

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5,   Pages 1277-1291 doi: 10.1007/s11709-021-1752-2

Abstract: having different action mechanisms on hardened state properties of cementitious systems containing mineraladditives is examined.ternary cement-based mixture having both fly ash and metakaolin was selected as the most successful mineral-additiveThe combined use of mineral additive and PRA had a more positive effect on the properties of the mixes

Keywords： cementitious system     mineral additive     permeability reducing admixture     mechanical properties     durability    

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Theoretical insights into influence of additives on sulfamethoxazole crystal growth kinetics and mechanisms

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1503-1515 doi: 10.1007/s11705-022-2294-4

Abstract: In this work, the influence of the initial chemical potential gradient, stirring speed, and polymer type on sulfamethoxazole (SMX) crystal growth kinetics was systematically investigated through density functional theory (DFT) calculations, experimental measurements and the two-step chemical potential gradient model. To investigate the influence of different conditions on the thermodynamic driving force of SMX crystal growth, SMX solubilities in different polymer solutions were studied. Four model polymers effectively improved SMX solubility. It was further found that polyvinylpyrrolidone (PVP) and hydroxypropyl methyl cellulose (HPMC) played a crucial role in inhibiting SMX crystal growth. However, polyethylene glycol (PEG) promoted SMX crystal growth. The effect of the polymer on the crystal growth mechanisms of SMX was further analyzed by the two-step chemical potential gradient model. In the system containing PEG 6000, crystal growth is dominated by the surface reaction. However, in the system containing PEG 20000, crystal growth is dominated by both the surface reaction and diffusion. In addition, DFT calculations results showed that HPMC and PVP could form strong and stable binding energies with SMX, indicating that PVP and HPMC had the potential ability to inhibit SMX crystal growth.

Keywords： insoluble drugs     polymer     inhibition crystallization     crystal growth kinetics     DFT calculations    

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Design of bio-oil additives via molecular signature descriptors using a multi-stage computer-aided molecular

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 2,   Pages 168-182 doi: 10.1007/s11705-021-2056-8

Abstract: Direct application of bio-oil from fast pyrolysis as a fuel has remained a challenge due to its undesirable attributes such as low heating value, high viscosity, high corrosiveness and storage instability. Solvent addition is a simple method for circumventing these disadvantages to allow further processing and storage. In this work, computer-aided molecular design tools were developed to design optimal solvents to upgrade bio-oil whilst having low environmental impact. Firstly, target solvent requirements were translated into measurable physical properties. As different property prediction models consist different levels of structural information, molecular signature descriptor was used as a common platform to formulate the design problem. Because of the differences in the required structural information of different property prediction models, signatures of different heights were needed in formulating the design problem. Due to the combinatorial nature of higher-order signatures, the complexity of a computer-aided molecular design problem increases with the height of signatures. Thus, a multi-stage framework was developed by developing consistency rules that restrict the number of higher-order signatures. Finally, phase stability analysis was conducted to evaluate the stability of the solvent-oil blend. As a result, optimal solvents that improve the solvent-oil blend properties while displaying low environmental impact were identified.

Keywords： computer-aided molecular design     bio-oil additives     molecular signature descriptor    

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EFFECT OF EXOGENOUS ADDITIVES ON HEAVY METAL PASSIVATION AND NITROGEN RETENTION IN PIG MANURE COMPOSTING

Frontiers of Agricultural Science and Engineering doi: 10.15302/J-FASE-2023487

Abstract:

● Research on heavy metal passivation and nitrogen emissions is necessary for the pig industry.

Keywords： additives     composting     heavy metals passivation     nitrogen retention     pig manure    

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Influences of additives on the crystal habit of potassium chloride

Xiaofu GUO, Junsheng YUAN, Zhiyong JI, Min SU,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 1,   Pages 78-81 doi: 10.1007/s11705-009-0300-8

Abstract: By means of constant control speed cooling crystallization, the influences of four additives, includingThe results show that the crystal habit of KCl is cube without additives, the crystal habit of KCl isX-ray diffractometry analysis reveals that these additives can change the crystal habit of KCl but not

Keywords： cadmium chloride     salicylate     presence     crystallization     diffractometry analysis    

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Effects of exercise therapy on bone mineral density in early postmenopausal women: a controlled trial

Shilin DENG MD ,

Frontiers of Medicine 2009, Volume 3, Issue 3,   Pages 323-329 doi: 10.1007/s11684-009-0061-2

Abstract: the effect of a well-designed combined aerobic, resistance, and extension exercise program on bone mineral

Keywords： early postmenopausal women     bone mineral density     exercise     effects    

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Enhancing thermostability of -mannanase by protective additives

LIU Zhaohui, QI Wei, WU Weina, LIU Yue, HE Zhimin

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 439-442 doi: 10.1007/s11705-008-0062-8

Abstract: reaction temperatures of -mannanase and the thermodynamics and the deactivation kinetics with or without additivesMeanwhile, the protective mechanism of the additives against deactivation of enzyme was also discussed

Keywords： protective additive     g/L     orthogonal experimental     combination additive     corresponding    

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Construction and Application of Mineral Flotation Adsorption Equilibrium Model: Accurately Analyze Ions/ Reagents Adsorption Behavior on Mineral Surface

Gao Ya, Fu Xinzhuang, Han Haisheng, Wang Li, Yue Tong, Sun Wei

Strategic Study of CAE 2023, Volume 25, Issue 6,   Pages 248-258 doi: 10.15302/J-SSCAE-2023.07.020

Abstract:

The mineral flotation adsorption equilibrium model is a mathematicalmodel to accurately describe ions/reagents adsorption equilibrium involved in mineral flotation.It is the first time to realize quantitative affinity analysis between mineral surface sites and Based on these constants, mineral surface electricity and ions/reagents adsorption behavior canIt is also of great significance in the study of mineral surface reagent adsorption mechanisms,

Keywords： mineral processing     flotation mechanism     mineral flotation adsorption equilibrium model     mineral floatabilityprediction     characteristic constant in mineral flotation    

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Chemical additives affect sulfate reducing bacteria biofilm properties adsorbed on stainless steel 316L

Yu Qi,Jin Li,Rui Liang,Sitong Ji,Jianxiang Li,Meng Liu

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 2, doi: 10.1007/s11783-017-0917-7

Abstract: (SRB) on stainless steel 316L (SS316L) surface in circulating cooling water system with and without additivesshows that the corrosion potential of SS316L was enhanced from −0.495 V to −0.390 V by the chemical additivesThis study would provide some recommendations for the selection of chemical additives in the thermal

Keywords： Sulfate reducing bacteria (SRB)     Chemical additives     Biofilm     Extracellular polymeric substance (EPS)     Microbe    

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Relationship between the development of energy and mineral resources and ecological conservation redline

Dawei ZHANG

Frontiers of Engineering Management 2019, Volume 6, Issue 4,   Pages 557-563 doi: 10.1007/s42524-019-0077-5

Abstract: point of view, this study discusses the dialectical relationship between the development of energy and mineralWe propose that the ecological conservation redline and the development of energy and mineral resourcesshould be guided by ecological civilization construction, that is, the energy and mineral resourcesThis study analyzes the influence of the development of energy and mineral resources on the ecologicalconservation redline based on the law and the reduction of the influence of the development of energy mineral

Keywords： ecological conservation redline     development of energy and mineral resources     coordinated development    

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A state-of-the-art review on interfacial behavior between asphalt binder and mineral aggregate

Meng GUO, Yiqiu TAN, Linbing WANG, Yue HOU

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 2,   Pages 248-259 doi: 10.1007/s11709-017-0422-x

Abstract: The interface between asphalt binder and mineral aggregate directly affects the service life of pavementThe interaction between asphalt binder and mineral aggregate is the main cause of forming the interfaceconducted on this topic clearly indicated that the interfacial interaction between asphalt binder and mineral

Keywords： Asphalt binder     Mineral aggregate     Interfacial behavior     Multiscale    

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Preparation and properties of nano SiO2 core-shell structured additives and their nanocomposite with

KE Yangchuan, SUN Mingzhuo, SONG Yanxin, YANG GuangFu

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 1,   Pages 76-80 doi: 10.1007/s11705-007-0016-6

Abstract: To improve the performance of traditional nucleation additives and their compatibility with other additives

Keywords： deformation coefficient     distortion temperature     excellent     NPP0-PP     traditional nucleation    

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Atmospheric heterogeneous reaction of chlorobenzene on mineral -FeO particulates: a chamber experiment

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 11, doi: 10.1007/s11783-023-1734-9

Abstract:

● Photochemical conversion of chlorobenzene (CB) on α-Fe2O3 was evaluated.

Keywords： Photochemical conversion     Chlorobenzene     α-Fe2O3     PCDD/Fs     Mineral particulate    

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Effect of PEG additives on properties and morphologies of polyetherimide membranes prepared by phase

Jian CHEN, Jiding LI, Xia ZHAN, Xiaolong HAN, Cuixian CHEN,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 3,   Pages 300-306 doi: 10.1007/s11705-009-0280-8

Abstract: This study investigated the effect of poly(ethylene glycol) (PEG) additive as a pore-former on the structure formation of membranes and their permeation properties connected with the changes in thermodynamic and kinetic properties in the phase inversion process. The membranes were prepared by using polyetherimide/-methyl-2-pyrrolidone/PEG (PEI/NMP/PEG) casting solution and water coagulant. The resulting membranes, prepared by changing the ratio of PEG to PEI, were characterized by scanning electron microscope (SEM) observations, measurements of water flux and -globin rejection. The thermodynamic and kinetic properties of the membrane-forming system were studied through viscosity. The pore radius distribution curves were especially obtained by differential scanning calorimetry (DSC). Furthermore, the membranes were characterized for pure water flux and rejection of solute and by SEM observation. The filtration results agreed well with the SEM observations. As expected, PEG with a fixed molecular weight (PEG 600) acted as a pore forming agent, and membrane porosity increased as the PEG content of the casting solution increased.

Keywords： permeation     ethylene     filtration     PEI/NMP/PEG     membrane    

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Data sharing mechanism of various mineral resources based on blockchain

Yili REN, Jia LIANG, Jian SU, Gang CAO, He LIU

Frontiers of Engineering Management 2020, Volume 7, Issue 4,   Pages 592-604 doi: 10.1007/s42524-020-0132-2

Abstract: Basins with various mineral resources coexisting and enriching often occupy an important strategic positionThe exploration of various mineral resources is repetitive at present due to unshared data and imperfect

Keywords： data sharing     blockchain     various mineral resources     collaborative exploration     big data    

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Title Author Date Type Operation

Effect of mineral additives and permeability reducing admixtures having different action mechanisms on

Journal Article

Theoretical insights into influence of additives on sulfamethoxazole crystal growth kinetics and mechanisms

Journal Article

Design of bio-oil additives via molecular signature descriptors using a multi-stage computer-aided molecular

Journal Article

EFFECT OF EXOGENOUS ADDITIVES ON HEAVY METAL PASSIVATION AND NITROGEN RETENTION IN PIG MANURE COMPOSTING

Journal Article

Influences of additives on the crystal habit of potassium chloride

Xiaofu GUO, Junsheng YUAN, Zhiyong JI, Min SU,

Journal Article

Effects of exercise therapy on bone mineral density in early postmenopausal women: a controlled trial

Shilin DENG MD ,

Journal Article

Enhancing thermostability of -mannanase by protective additives

LIU Zhaohui, QI Wei, WU Weina, LIU Yue, HE Zhimin

Journal Article

Construction and Application of Mineral Flotation Adsorption Equilibrium Model: Accurately Analyze Ions/ Reagents Adsorption Behavior on Mineral Surface

Gao Ya, Fu Xinzhuang, Han Haisheng, Wang Li, Yue Tong, Sun Wei

Journal Article

Chemical additives affect sulfate reducing bacteria biofilm properties adsorbed on stainless steel 316L

Yu Qi,Jin Li,Rui Liang,Sitong Ji,Jianxiang Li,Meng Liu

Journal Article

Relationship between the development of energy and mineral resources and ecological conservation redline

Dawei ZHANG

Journal Article

A state-of-the-art review on interfacial behavior between asphalt binder and mineral aggregate

Meng GUO, Yiqiu TAN, Linbing WANG, Yue HOU

Journal Article

Preparation and properties of nano SiO2 core-shell structured additives and their nanocomposite with

KE Yangchuan, SUN Mingzhuo, SONG Yanxin, YANG GuangFu

Journal Article

Atmospheric heterogeneous reaction of chlorobenzene on mineral -FeO particulates: a chamber experiment

Journal Article

Effect of PEG additives on properties and morphologies of polyetherimide membranes prepared by phase

Jian CHEN, Jiding LI, Xia ZHAN, Xiaolong HAN, Cuixian CHEN,

Journal Article

Data sharing mechanism of various mineral resources based on blockchain

Yili REN, Jia LIANG, Jian SU, Gang CAO, He LIU

Journal Article