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Article ; Online: Author Correction: 3D smooth path planning of AUV based on improved ant colony optimization considering heading switching pressure.

Meng, Ronghua / Sun, Aiwen / Wu, Zhengjia / Du, Xuan / Meng, Yongdong

2023 Volume 13, Issue 1, Page(s) 14076

Language	English
Publishing date	2023-08-28
Publishing country	England
Document type	Published Erratum
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-023-41140-2
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: 3D smooth path planning of AUV based on improved ant colony optimization considering heading switching pressure.

Meng, Ronghua / Sun, Aiwen / Wu, Zhengjia / Du, Xuan / Meng, Yongdong

Scientific reports

2023 Volume 13, Issue 1, Page(s) 12348

Abstract: A smooth and secure spatial path planning algorithm that integrates the improved ant colony optimization with the corrective connected spatial search strategy is proposed, aiming at heavy heading switching pressure of autonomous underwater vehicles ... ...

Abstract	A smooth and secure spatial path planning algorithm that integrates the improved ant colony optimization with the corrective connected spatial search strategy is proposed, aiming at heavy heading switching pressure of autonomous underwater vehicles sailing in complex marine environment. On the one hand, to overcome the low-dimensional search domain and inaccurate spatial communication information in traditional spatial path planning, the spatial connectivity adjacency domain search strategy is designed based on grid environment model. On the other hand, to alleviate heading switching pressure due to large path steering angles and redundant path turning points, the heuristic functions and pheromone update criterion based on ant colony optimization are introduced to improve the solution quality of smooth paths. The simulation results show that the space search strategy can improve the success probability of safe path planning without reducing the scope of explorable free space. Additionally, the simulations demonstrate that the improved ant colony optimization using the spatial search strategy can guarantee the shortest path with lowest tortuous degree and fewest turning times in the same grid environment.
Language	English
Publishing date	2023-07-31
Publishing country	England
Document type	Journal Article
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-023-39346-5
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Article ; Online: Research on the community electric carbon emission prediction considering the dynamic emission coefficient of power system.

Yu, Hui / Yang, Yang / Li, Bin / Liu, Bowen / Guo, Yuanhu / Wang, Yunqi / Guo, Zhongfu / Meng, Ronghua

Scientific reports

2023 Volume 13, Issue 1, Page(s) 5568

Abstract: Based on the counted power system emission factors of North China Power Grid, a community carbon emissions sample database is constructed. The support vector regression (SVR) model is trained to forecast the power carbon emissions, which is optimized by ... ...

Abstract	Based on the counted power system emission factors of North China Power Grid, a community carbon emissions sample database is constructed. The support vector regression (SVR) model is trained to forecast the power carbon emissions, which is optimized by genetic algorithm (GA). A community carbon emission warning system is designed according the results. The dynamic emission coefficient curve of the power system is obtained by fitting the annual carbon emission coefficients. The time series SVR carbon emission prediction model is constructed, while the GA is improved to optimize its parameters. Taking Beijing Caochang Community as an example, a carbon emission sample database is generated based on the electricity consumption and emission coefficient curve to train and test the SVR model. The results show that the GA-SVR model fits well with the training set and the testing set, and the prediction accuracy of the testing set reaches 86%. In view of the training model in this paper, the carbon emission trend of community electricity consumption in the next month is predicted. The carbon emission warning system of the community is designed, and the specific strategy of community carbon emission reduction is proposed.
Language	English
Publishing date	2023-04-05
Publishing country	England
Document type	Journal Article
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-023-31022-y
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Article: [Methyl ferulic acid ameliorates ethanol-induced L02 cell steatosis through microRNA-378b-mediated CaMKK2-AMPK pathway].

Huang, Ping / Chen, Xing / Meng, Rong-Hua / Lu, Jun / Zhang, Yan / Li, Li / Li, Yong-Wen

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

2022 Volume 48, Issue 1, Page(s) 193–201

Abstract: Alcoholic liver disease(ALD), with its increasing morbidity and mortality, has seriously and extensively affected the health of people worldwide. Methyl ferulic acid(MFA) has been proven to significantly inhibit alcohol-induced lipid production in L02 ... ...

Abstract	Alcoholic liver disease(ALD), with its increasing morbidity and mortality, has seriously and extensively affected the health of people worldwide. Methyl ferulic acid(MFA) has been proven to significantly inhibit alcohol-induced lipid production in L02 cells through the AMP-activated protein kinase(AMPK) pathway, but its in-depth mechanism remains unclear. This study aimed to further clarify the mechanism of MFA in improving lipid accumulation in L02 cells through the microRNA-378b(miR-378b)-mediated calcium/calmodulin-dependent protein kinase kinase 2(CaMKK2)-AMPK signaling pathway based on existing researches. L02 cells were induced by 100 mmol·L~(-1) ethanol for 48 h to establish the model of ALD in vitro, and 100, 50, and 25 μmol·L~(-1) concentration of MFA was treated. MiR-378b plasmids(containing the overexpression plasmid-miR-378b mimics, silence plasmid-miR-378b inhibitor, and their respective negative control-miR-378b NCs) were transfected into L02 cells by electroporation to up-regulate or down-regulate the levels of miR-378b in L02 cells. The levels of total cholesterol(TC) and triglyceride(TG) in cells were detected by commercial diagnostic kits and automatic biochemical analyzers. The expression levels of miR-378b in L02 cells were detected by real-time quantitative polymerase chain reaction(qRT-PCR). CaMKK2 mRNA levels were detected by PCR, and protein expressions of related factors involved in lipid synthesis, decomposition, and transport in lipid metabolism were detected by Western blot. The results displayed that ethanol significantly increased TG and TC levels in L02 cells, while MFA decreased TG and TC levels. Ethanol up-regulated the miR-378b level, while MFA effectively inhibited the miR-378b level. The overexpression of miR-378b led to lipid accumulation in ethanol-induced L02 cells, while the silence of miR-378b improved the lipid deposition induced by ethanol. MFA activated the CaMKK2-AMPK signaling pathway by lowering miR-378b, thus improving lipid synthesis, decomposition, and transport, which improved lipid deposition in L02 cells. This study shows that MFA improves lipid deposition in L02 cells by regulating the CaMKK2-AMPK pathway through miR-378b.
MeSH term(s)	Humans ; Ethanol/toxicity ; AMP-Activated Protein Kinases/genetics ; AMP-Activated Protein Kinases/metabolism ; Fatty Liver ; Triglycerides ; MicroRNAs/genetics ; Calcium-Calmodulin-Dependent Protein Kinase Kinase/genetics
Chemical Substances	Ethanol (3K9958V90M) ; AMP-Activated Protein Kinases (EC 2.7.11.31) ; ferulic acid (AVM951ZWST) ; Triglycerides ; MicroRNAs ; CAMKK2 protein, human (EC 2.7.11.17) ; Calcium-Calmodulin-Dependent Protein Kinase Kinase (EC 2.7.11.17)
Language	Chinese
Publishing date	2022-04-06
Publishing country	China
Document type	English Abstract ; Journal Article
ZDB-ID	1004649-5
ISSN	1001-5302 ; 0254-0029
ISSN	1001-5302 ; 0254-0029
DOI	10.19540/j.cnki.cjcmm.20220905.702
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Article ; Online: Lipid Profiles of the Heads of Four Shrimp Species by UPLC-Q-Exactive Orbitrap/MS and Their Cardiovascular Activities.

Zhu, Yongqiang / Li, Peihai / Meng, Ronghua / Li, Xiaobin / Qiu, Yuezi / Wang, Lizheng / Zhang, Shanshan / Zhang, Xuanming / Lin, Houwen / Zhai, Hongbin / Liu, Kechun

Molecules (Basel, Switzerland)

2022 Volume 27, Issue 2

Abstract: Lipids are key factors in nutrition, structural function, metabolic features, and other biological functions. In this study, the lipids from the heads of four species of shrimp ( ...

Abstract	Lipids are key factors in nutrition, structural function, metabolic features, and other biological functions. In this study, the lipids from the heads of four species of shrimp (
MeSH term(s)	Animals ; Anti-Inflammatory Agents/pharmacology ; Cardiotonic Agents/pharmacology ; Cardiovascular System/drug effects ; Chromatography, High Pressure Liquid/methods ; Fibrinolytic Agents/pharmacology ; Lipidomics ; Lipids/analysis ; Lipids/pharmacology ; Mass Spectrometry/methods ; Penaeidae ; Thrombosis/drug therapy ; Zebrafish
Chemical Substances	Anti-Inflammatory Agents ; Cardiotonic Agents ; Fibrinolytic Agents ; Lipids
Language	English
Publishing date	2022-01-06
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	1413402-0
ISSN	1420-3049 ; 1431-5165 ; 1420-3049
ISSN (online)	1420-3049
ISSN	1431-5165 ; 1420-3049
DOI	10.3390/molecules27020350
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Article ; Online: Study on water-dispersible colloids in saline-alkali soils by atomic force microscopy and spectrometric methods.

Liu, Zhiguo / Xu, Fengjie / Zu, Yuangang / Meng, Ronghua / Wang, Wenjie

Microscopy research and technique

2016 Volume 79, Issue 6, Page(s) 525–531

Abstract: Recent studies have revealed that water-dispersible colloids play an important role in the transport of nutrients and contaminants in soils. In this study, water-dispersible colloids extracted from saline-alkali soils have been characterized by atomic ... ...

Abstract	Recent studies have revealed that water-dispersible colloids play an important role in the transport of nutrients and contaminants in soils. In this study, water-dispersible colloids extracted from saline-alkali soils have been characterized by atomic force microscopy (AFM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and UV absorption spectra. AFM observation indicated that the water-dispersible colloids contain some large plates and many small spherical particles. XRD, XPS, and UV absorption measurement revealed that the water-dispersible colloids are composed of kaolinite, illite, calcite, quartz and humic acid. In addition, UV absorption measurement demonstrated that the humic acids are associated with clay minerals. Water-dispersible colloids in the saline-alkali soils after hydrolyzed polymaleic anhydride treatment and an agricultural soil (nonsaline-alkali soil) were also investigated for comparison. The obtained results implied that the saline-alkali condition facilitates the formation of a large quantity of colloids. The use of AFM combined with spectrometric methods in the present study provides new knowledge on the colloid characteristics of saline-alkali soils. Microsc. Res. Tech. 79:525-531, 2016. © 2016 Wiley Periodicals, Inc.
Language	English
Publishing date	2016-06
Publishing country	United States
Document type	Journal Article
ZDB-ID	1099714-3
ISSN	1097-0029 ; 1059-910X
ISSN (online)	1097-0029
ISSN	1059-910X
DOI	10.1002/jemt.22662
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Zs.A 2251: Show issues

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Article ; Online: Imaging and studying human topoisomerase I on mica surfaces in air and in liquid by atomic force microscopy.

Liu, Zhiguo / Meng, Ronghua / Zu, Yuangang / Li, Qingyong / Yao, Liping

Scanning

2009 Volume 31, Issue 4, Page(s) 160–166

Abstract: In this study, the topography of human topoisomerase I (TOPO I) on mica surfaces in air and in liquid has been studied by atomic force microscopy (AFM). The average height of TOPO I on mica surface in air measured by AFM was 2.59+/-0.32 nm. After ... ...

Abstract	In this study, the topography of human topoisomerase I (TOPO I) on mica surfaces in air and in liquid has been studied by atomic force microscopy (AFM). The average height of TOPO I on mica surface in air measured by AFM was 2.59+/-0.32 nm. After adsorption of the 0.3 U/microl TOPO I on mica surfaces for 2 h, and then imaged in liquid by AFM, well-separated single TOPO I was observed. The average height of TOPO I on mica surfaces in liquid measured by AFM was 2.93+/-0.42 nm. After adsorption of the 4 U/microl TOPO I on mica surfaces for 1.5 h, TOPO I monolayer can be formed. The produced TOPO I monolayer on mica was flat and exhibited good stability.
MeSH term(s)	Adsorption ; Air ; Aluminum Silicates ; DNA Topoisomerases, Type I/chemistry ; DNA Topoisomerases, Type I/ultrastructure ; Humans ; Microscopy, Atomic Force/methods ; Water
Chemical Substances	Aluminum Silicates ; Water (059QF0KO0R) ; DNA Topoisomerases, Type I (EC 5.99.1.2) ; mica (V8A1AW0880)
Language	English
Publishing date	2009-07
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	391900-6
ISSN	1932-8745 ; 0161-0457
ISSN (online)	1932-8745
ISSN	0161-0457
DOI	10.1002/sca.20154
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Zs.A 3871: Show issues

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Article ; Online: Assembling and imaging of his-tag green fluorescent protein on mica surfaces studied by atomic force microscopy and fluorescence microscopy.

Liu, Zhiguo / Zu, Yuangang / Fu, Yujie / Zhang, Zhonghua / Meng, Ronghua

Microscopy research and technique

2008 Volume 71, Issue 11, Page(s) 802–809

Abstract: The adsorption of his-tag green fluorescent protein (GFPH(6)) onto the mica surfaces has been studied by atomic force microscopy (AFM) and laser confocal fluorescence microscopy. By controlling the adsorption conditions, separated single GFPH(6) and GFPH( ...

Abstract	The adsorption of his-tag green fluorescent protein (GFPH(6)) onto the mica surfaces has been studied by atomic force microscopy (AFM) and laser confocal fluorescence microscopy. By controlling the adsorption conditions, separated single GFPH(6) and GFPH(6) monolayer can be adsorbed and formed on mica surfaces. In present experiments, based on the AFM measurement, we found that the adsorbed GFPH(6) was bound on the mica surface with its beta-sheets. The formed GFPH(6) monolayer on mica surfaces was flat, uniform, and stable. Some applications of the formed monolayer have been demonstrated. The formed monolayer can be used as a substrate for DNA imaging and AFM mechanical lithography.
MeSH term(s)	Adsorption ; Aluminum Silicates/chemistry ; Green Fluorescent Proteins/metabolism ; Green Fluorescent Proteins/ultrastructure ; Microscopy, Atomic Force ; Microscopy, Confocal ; Protein Binding
Chemical Substances	Aluminum Silicates ; Green Fluorescent Proteins (147336-22-9) ; mica (V8A1AW0880)
Language	English
Publishing date	2008-11
Publishing country	United States
Document type	Journal Article
ZDB-ID	1099714-3
ISSN	1097-0029 ; 1059-910X
ISSN (online)	1097-0029
ISSN	1059-910X
DOI	10.1002/jemt.20622
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Article ; Online: Hydrothermal synthesis of histidine-functionalized single-crystalline gold nanoparticles and their pH-dependent UV absorption characteristic.

Liu, Zhiguo / Zu, Yuangang / Fu, Yujie / Meng, Ronghua / Guo, Songling / Xing, Zhimin / Tan, Shengnan

Colloids and surfaces. B, Biointerfaces

2010 Volume 76, Issue 1, Page(s) 311–316

Abstract: L-Histidine capped single-crystalline gold nanoparticles have been synthesized by a hydrothermal process under a basic condition at temperature between 65 and 150 degrees C. The produced gold nanoparticles were spherical with average diameter of 11.5+/-2. ...

Abstract	L-Histidine capped single-crystalline gold nanoparticles have been synthesized by a hydrothermal process under a basic condition at temperature between 65 and 150 degrees C. The produced gold nanoparticles were spherical with average diameter of 11.5+/-2.9nm. The synthesized gold colloidal solution was very stable and can be stored at room temperature for more than 6 months. The color of the colloidal solution can change from wine red to mauve, purple and blue during the acidifying process. This color changing phenomenon is attributed to the aggregation of gold nanoparticles resulted from hydrogen bond formation between the histidines adsorbed on the gold nanoparticles surfaces. This hydrothermal synthetic method is expected to be used for synthesizing some other amino acid functionalized gold nanomaterials.
MeSH term(s)	Absorption ; Colloids/chemistry ; Crystallography, X-Ray ; Gold/chemistry ; Histidine/chemistry ; Hot Temperature ; Hydrogen Bonding ; Hydrogen-Ion Concentration ; Metal Nanoparticles/chemistry ; Microscopy, Electron, Transmission ; Molecular Structure ; Spectrophotometry, Ultraviolet ; Spectroscopy, Fourier Transform Infrared
Chemical Substances	Colloids ; Histidine (4QD397987E) ; Gold (7440-57-5)
Language	English
Publishing date	2010-03-01
Publishing country	Netherlands
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	1500523-9
ISSN	1873-4367 ; 0927-7765
ISSN (online)	1873-4367
ISSN	0927-7765
DOI	10.1016/j.colsurfb.2009.11.010
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Article ; Online: The interactions of cisplatin and DNA studied by atomic force microscopy.

Liu, Zhiguo / Tan, Shengnan / Zu, Yuangang / Fu, Yujie / Meng, Ronghua / Xing, Zhimin

Micron (Oxford, England : 1993)

2010 Volume 41, Issue 7, Page(s) 833–839

Abstract: The interactions of the several linear DNA fragments and cisplatin at different concentrations and incubation time have been studied by atomic force microscopy. When equal volume of 2mM cisplatin and 5ng/microl 1134bp DNA fragment were incubated for ... ...

Abstract	The interactions of the several linear DNA fragments and cisplatin at different concentrations and incubation time have been studied by atomic force microscopy. When equal volume of 2mM cisplatin and 5ng/microl 1134bp DNA fragment were incubated for 30min, 1h, 2h and 3h, the observed DNA were gradually changed from the extended chains to the bending structures, the worm-like structures and flat particles. The formation of these structures can be attributed to the coordination and electrostatic interactions by binding of cisplatin on DNA. When longer DNA fragments such as pBR322/pstI DNA (4361bp) and lambda DNA (48502bp) were used for interacting with cisplatin in the same condition, the observed DNA molecules tended to form many loop structures. The differences of the interactions between long and short DNA can be ascribed to the strong intramolecular interactions within the long DNA fragment. When the relative low concentration of cisplatin (100micromol/l) was used in the experiments, the observed DNA tended to bend along its chains. Furthermore, the measured contour length and the calculated persistent length of cisplatin-DNA were gradually decreased with the incubated time. All of these AFM results revealed that the cisplatin-DNA interactions in vitro can be influenced by the concentration and the initial state of cisplatin, the length of DNA fragment and the reaction time.
MeSH term(s)	Animals ; Bacteriophage lambda ; Cattle ; Cisplatin/metabolism ; DNA/metabolism ; Microscopy, Atomic Force ; Plasmids ; Protein Binding ; Thymus Gland ; Time Factors
Chemical Substances	DNA (9007-49-2) ; Cisplatin (Q20Q21Q62J)
Language	English
Publishing date	2010-10
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	207808-9
ISSN	1878-4291 ; 0047-7206 ; 0968-4328
ISSN (online)	1878-4291
ISSN	0047-7206 ; 0968-4328
DOI	10.1016/j.micron.2010.05.001
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