Search | Engineering

Subscribe Submit

Home Journals Focus Achievement Fronts About Us 中文版

Resource Type

Journal Article 1285

Conference Videos 66

Conference Information 5

Year

2024 5

2023 147

2022 181

2021 217

2020 119

2019 78

2018 48

2017 51

2016 76

2015 68

2014 27

2013 45

2012 40

2011 30

2010 36

2009 45

2008 37

2007 35

2006 8

2005 10

open ︾

Keywords

1 15

Deep learning 8

2 7

nuclear power plant 7

adsorption 6

Reinforcement learning 5

optimization 5

H₂S 4

Machine learning 4

Multi-agent systems 4

PD-L1 4

Photocatalysis 4

prognosis 4

syngas 4

1) 3

Multi-agent system 3

Nuclear energy 3

biofilm 3

dynamic 3

open ︾

Search scope:

排序： Display mode:

Application and mechanism of polysaccharide extracted from Enteromorpha to remove nano-ZnO and humic acid in coagulation process

Jianzhang Sun, Baoyu Gao, Yuanxia Luo, Moxi Xue, Xing Xu, Qinyan Yue, Yan Wang

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 3, doi: 10.1007/s11783-018-1029-8

Abstract: Enteromorpha polysaccharide (Ep) extracted from alga a novel green coagulant aid for nanoparticles (NPs) and heavy metal ions removal and the structure of EP was intensively studied in this study. The integration of Ep with polyaluminum chloride (PAC-Ep) coagulants exhibited higher coagulation performance than that of the polyaluminum chloride (PAC) because of the negatively charged NPs suspension and humic aid (HA) solution. Significant high removal efficiencies of dissolved organic matter (94.1%), turbidity (99.3%) and Zn ions (69.3%) were achieved by the PAC-Ep coagulants. The dual-coagulation properties of PAC-Ep for different pollutants was based on multiple mechanisms, including (i) Al charge neutralization; (ii) hydroxy aluminum hydroxyl bridging formed polynuclearhydroxy complexes bridge and sweep colloidal particles; (iii) adsorption and bridging of Ep chain for the NPs and heavy metal ions. Results indicated that the destabilization of colloid was induced by the coexisting HA and higher removal was achieved as ions adsorption was enhance in the presence of HA complexation. On the basis of that, the extraction of polysaccharide is a promising candidate for its high coagulation performance in water treatment.

Keywords： Algal Extraction Enteromorpha polysaccharide 1sup>H-13sup>C nuclear magnetic resonance

HTML PDF Collect

Recent Advances in 19sup>Fluorine Magnetic Resonance Imaging with Perfluorocarbon Emulsions Review

Anne H. Schmieder,Shelton D. Caruthers,Jochen Keupp,Samuel A. Wickline,Gregory M. Lanza

Engineering 2015, Volume 1, Issue 4, Pages 475-489 doi: 10.15302/J-ENG-2015103

Abstract:

The research roots of 19sup>fluorine (19sup>F) magnetic resonance imaging (MRI) dateOver that time span, 1sup>H imaging flourished and was adopted worldwide with an endless arrayof applications and imaging approaches, making magnetic resonance an indispensable pillar of biomedical>19sup>F imaging has exploded.In part, this is due to advances in MRI instrumentation, 19sup>F/1sup>H coil designs, and

Keywords： fluorine magnetic resonance imaging (MRI) dual-tuned coil perfluorocarbon angiogenesis cell labeling

HTML PDF Collect

Symbiotic performance, shoot biomass and water-use efficiency of three groundnut (

Sofiya K. MUHABA, Felix D. DAKORA

Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 4, Pages 455-466 doi: 10.15302/J-FASE-2020354

Abstract: respiration and photosynthesis and its supply at low levels can affect legume nodulation, N fixation, and Cthe genotypes significantly increased their shoot biomass, symbiotic performance, grain yield, and CThere was, however, no effect on shoot δ C values in either year.The three genotypes differed significantly in δ N, %Ndfa, N-fixed, grain yield, C concentration, and δ C.

Keywords： shoot yield N-fixed %Ndfa δ15sup>N δ13sup>C water-use efficiency

HTML PDF Collect

Effect of noble metal nanoparticle size on C–N bond cleavage performance in hydrodenitrogenation: a study

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12, Pages 1986-2000 doi: 10.1007/s11705-023-2337-5

Abstract: Breakage of the C–N bond is a structure sensitive process, and the catalyst size significantly affectswere obtained by modulating the reduction temperature, and the catalytic activity was evaluated using 1,2,3,4Results showed a 13 times higher reaction rate for sp3sup>-hybridized C–N bond cleavage than sp2sup>-hybridized C–N bond cleavage, while the reaction rate tended to increase first and thenbond cleavage activity, and the step atoms are the active sites for the C–N bond cleavage.

Keywords： sp3sup>/sp2sup>-hybridized C–N bond noble metal nanoparticle catalytic active site turnover

HTML PDF Collect

New Monitoring Technologies for Overhead Contact Line at 400 km·h−1sup>

Chul Jin Cho, Young Park

Engineering 2016, Volume 2, Issue 3, Pages 360-365 doi: 10.1016/J.ENG.2016.03.016

Abstract: recently been developed for high-speed railways, in order to boost commercial speeds from 300 km·h−1sup>to 400 km·h−1sup>.Among these technologies, this paper introduces the 400 km·h−1sup> class currenthave been adopted to inspect the stability of overhead contact line (OCL) components at 400 km·h−1sup> without direct contact with any components of the power supply system.

Keywords： High-speed railway Overhead contact lines Condition monitoring Image processing based measurement

HTML PDF Collect

Study on Algorithm A*sup> Based on Dynamic Representation of Binary Tree for Environment and Robotic

Tang Ping,Yang Yimin

Strategic Study of CAE 2002, Volume 4, Issue 9, Pages 50-53

Abstract: A new algorithm A*sup> , which plans the path of soccer robots in complicated environments is

Keywords： dynamic binary-tree algorithm A*sup> path planning

HTML PDF Collect

Precipitation study of CO

Siming Chen, Yue Wu, Geoffrey W. Stevens, Guoping Hu, Wenshou Sun, Kathryn A. Mumford

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 3, Pages 415-424 doi: 10.1007/s11705-019-1882-4

Abstract: Focused beam reflectance measurement (FBRM) and C nuclear magnetic resonance ( C NMR) analysis wereC NMR spectroscopic analysis showed that the crystals precipitated from the CO -unsaturated KGLY solutions

Keywords： crystallization precipitation glycinate FBRM 13sup>C NMR

HTML PDF Collect

Clinical significance of CD34+sup>CD117dimsup>/CD34+sup>CD117brisup> myeloblast-associated

Xueping Li, Yuting Dai, Bing Chen, Jinyan Huang, Saijuan Chen, Lu Jiang

Frontiers of Medicine 2021, Volume 15, Issue 4, Pages 608-620 doi: 10.1007/s11684-021-0836-7

Abstract: t(8;21)(q22;q22) acute myeloid leukemia (AML) is a highly heterogeneous hematological malignancy with a high relapse rate in China. Two leukemic myeloblast populations (CD34 CD117 and CD34 CD117 ) were previously identified in t(8;21) AML, and CD34 CD117 cell proportion was determined as an independent factor for this disease outcome. Here, we examined the impact of CD34 CD117 /CD34 CD117 myeloblast-associated gene expression on t(8;21) AML clinical prognosis. In this study, 85 patients with t(8;21) AML were enrolled. The mRNA expression levels of CD34 CD117 -associated genes ( , , and ) and CD34 CD117 -associated genes ( , , and ) were measured using quantitative reverse transcription PCR. Associations between gene expression and clinical outcomes were determined using Cox regression models. Results showed that patients with high , , or expression had significantly inferior overall survival (OS), whereas those with high or expression showed relatively favorable prognosis. Univariate analysis revealed that CD19, CD34 CD117 proportion, mutation, minimal residual disease (MRD), and expression levels of , , , and were associated with OS. Multivariate analysis indicated that mutation, MRD and and expression levels were independent prognostic variables for OS. Identifying the clinical relevance of CD34 CD117 /CD34 CD117 myeloblast-associated gene expression may provide new clinically prognostic markers for t(8;21) AML.

Keywords： t(8 21)(q22 q22) AML CD34+sup>CD117dimsup>/ CD34+sup>CD117brisup> cell population

HTML PDF Collect

K+sup> and Na+sup> fluxes in roots of two Chinese Iris populations

Pinfang LI,Biao ZHANG

Frontiers of Agricultural Science and Engineering 2014, Volume 1, Issue 2, Pages 144-149 doi: 10.15302/J-FASE-2014016

Abstract: Maintenance of ion homeostasis, particularly the regulation of K and Na uptake, is important for all plants to adapt to salinity. Observations on ionic response to salinity and net fluxes of K , Na in the root exhibited by plants during salt stress have highlighted the need for further investigation. The objectives of this study were to compare salt adaptation of two Chinese Iris ( Pall. var. (Fisch.) Koidz.) populations, and to improve understanding of adaptation to salinity exhibited by plants. Plants used in this study were grown from seeds collected in the Xinjiang Uygur Autonomous Region (Xj) and Beijing Municipality (Bj), China. Hydroponically-grown seedlings of the two populations were supplied with nutrient solutions containing 0.1 (control) and 140 mmol·L NaCl. After 12 days, plants were harvested for determination of relative growth rate and K , Na concentrations. Net fluxes of K , Na from the apex and along the root axis to 10.8 mm were measured using non-invasive micro-test technique. With 140 mmol·L NaCl treatment, shoots for population Xj had larger relative growth rate and higher K concentration than shoots for population Bj. However, the Na concentrations in both shoots and roots were lower for Xj than those for Bj. There was a lower net efflux of K found in population Xj than by Bj in the mature zone (approximately 2.4-10.8 mm from root tip). However, no difference in the efflux of Na between the populations was obtained. Population Xj of continued to grow normally under NaCl stress, and maintained a higher K /Na ratio in the shoots. These traits, which were associated with lower K leakage, help population Xj adapt to saline environments.

Keywords： Koidz population K+sup> and Na+sup> ion flux non-invasive micro-test technique

HTML PDF Collect

Removal of ammonium and nitrate through Anammox and FeS-driven autotrophic denitrification

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 6, doi: 10.1007/s11783-023-1674-4

Abstract:

● Simultaneous NH₄+sup>/NO₃–sup

Keywords： Anammox Denitrification FeS NH₄+sup>/NO₃−sup> Sulfammox

HTML PDF Collect

Innate and adaptive T cells in influenza disease

Simone Nüssing, Sneha Sant, Marios Koutsakos, Kanta Subbarao, Thi H.O. Nguyen, Katherine Kedzierska

Frontiers of Medicine 2018, Volume 12, Issue 1, Pages 34-47 doi: 10.1007/s11684-017-0606-8

Abstract: summarize the current knowledge on influenza-specific innate MAIT and gd T cells as well as adaptive CD8+sup> and CD4+sup> T cells, and discuss how these responses can be harnessed by novel vaccine

Keywords： influenza innate T cells CD4+sup> and CD8+sup> T cells vaccination

HTML PDF Collect

Calculation of H₂+sup> Structural Parameters based on Hydrogen Atomic Protonized Model

Chen Jing

Strategic Study of CAE 2004, Volume 6, Issue 11, Pages 29-32

Abstract:

The hydrogen atomic protonized model was introduced in present paper for calculation of H₂+sup> structural parameters.

Keywords： hydrogen molecule ion bond-length bond-energy force constant

HTML PDF Collect

Selective recovery of Cu

Haiping LUO,Bangyu QIN,Guangli LIU,Renduo ZHANG,Yabo TANG,Yanping HOU

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 3, Pages 522-527 doi: 10.1007/s11783-014-0633-5

Abstract: As the bioelectrochemical system, the microbial fuel cell (MFC) and the microbial electrolysis cell (MEC) were developed to selectively recover Cu and Ni ions from wastewater. The wastewater was treated in the cathode chambers of the system, in which Cu and Ni ions were removed by using the MFC and the MEC, respectively. At an initial Cu concentration of 500 mg·L , removal efficiencies of Cu increased from 97.0%±1.8% to 99.0%±0.3% with the initial Ni concentrations from 250 to 1000 mg·L , and maximum power densities increased from 3.1±0.5 to 5.4±0.6 W·m . The Ni removal mass in the MEC increased from 6.8±0.2 to 20.5±1.5 mg with the increase of Ni concentrations. At an initial Ni concentration of 500 mg·L , Cu removal efficiencies decreased from 99.1%±0.3% to 74.2%±3.8% with the initial Cu concentrations from 250 to 1000 mg·L , and maximum power densities increased from 3.0±0.1 to 6.3±1.2 W·m . Subsequently, the Ni removal efficiencies decreased from 96.9%±3.1% to 73.3%±5.4%. The results clearly demonstrated the feasibility of selective recovery of Cu and Ni from the wastewater using the bioelectrochemical system.

Keywords： bioelectrochemical system Cu2+sup> Ni2+sup> selective recovery

HTML PDF Collect

Advances of 12thsup> CAPS research symposium: young chemists and chemical engineers fronts

Guoping Hu, Baiqian Dai

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 3, Pages 461-463 doi: 10.1007/s11705-020-2026-6

HTML PDF Collect

RNA m6sup>A modification and its function in diseases

Jiyu Tong, Richard A. Flavell, Hua-Bing Li

Frontiers of Medicine 2018, Volume 12, Issue 4, Pages 481-489 doi: 10.1007/s11684-018-0654-8

Abstract:

N6sup>-methyladenosine (m6sup>A) is the most common post-transcriptional RNAsup>A modification could be installed by m6sup>A “writers” composed of core catalyticThe function of m6sup>A is executed by m6sup>A “readers” that bind to m6sup>A directly (YTH domain-containing proteins, eIF3 and IGF2BPs) or indirectly (HNRNPA2B1).However, the mechanism and the regulatory network of m6sup>A are still largely unknown.

Keywords： RNA modification m6sup>A immunity cancer epigenetics

HTML PDF Collect

Title Author Date Type Operation

Application and mechanism of polysaccharide extracted from Enteromorpha to remove nano-ZnO and humic acid in coagulation process

Jianzhang Sun, Baoyu Gao, Yuanxia Luo, Moxi Xue, Xing Xu, Qinyan Yue, Yan Wang

Journal Article

Recent Advances in 19sup>Fluorine Magnetic Resonance Imaging with Perfluorocarbon Emulsions

Anne H. Schmieder,Shelton D. Caruthers,Jochen Keupp,Samuel A. Wickline,Gregory M. Lanza

Journal Article

Symbiotic performance, shoot biomass and water-use efficiency of three groundnut (

Sofiya K. MUHABA, Felix D. DAKORA

Journal Article

Effect of noble metal nanoparticle size on C–N bond cleavage performance in hydrodenitrogenation: a study

Journal Article

New Monitoring Technologies for Overhead Contact Line at 400 km·h−1sup>

Chul Jin Cho, Young Park

Journal Article

Study on Algorithm A*sup> Based on Dynamic Representation of Binary Tree for Environment and Robotic

Tang Ping,Yang Yimin

Journal Article

Precipitation study of CO

Siming Chen, Yue Wu, Geoffrey W. Stevens, Guoping Hu, Wenshou Sun, Kathryn A. Mumford

Journal Article

Clinical significance of CD34+sup>CD117dimsup>/CD34+sup>CD117brisup> myeloblast-associated

Xueping Li, Yuting Dai, Bing Chen, Jinyan Huang, Saijuan Chen, Lu Jiang

Journal Article

K+sup> and Na+sup> fluxes in roots of two Chinese Iris populations

Pinfang LI,Biao ZHANG

Journal Article

Removal of ammonium and nitrate through Anammox and FeS-driven autotrophic denitrification

Journal Article

Innate and adaptive T cells in influenza disease

Simone Nüssing, Sneha Sant, Marios Koutsakos, Kanta Subbarao, Thi H.O. Nguyen, Katherine Kedzierska

Journal Article

Calculation of H₂+sup> Structural Parameters based on Hydrogen Atomic Protonized Model

Chen Jing

Journal Article

Selective recovery of Cu

Haiping LUO,Bangyu QIN,Guangli LIU,Renduo ZHANG,Yabo TANG,Yanping HOU

Journal Article

Advances of 12thsup> CAPS research symposium: young chemists and chemical engineers fronts

Guoping Hu, Baiqian Dai

Journal Article

RNA m6sup>A modification and its function in diseases

Jiyu Tong, Richard A. Flavell, Hua-Bing Li

Journal Article

京公网安备 11010502051620号京ICP备11030251号-2

关注我们