Search results for: Lisong Wang

Items from 1 to 17 out of 17 results

article

Locally Reconfigurable Exchange Bias for Tunable Spintronics by Pulsed Current Injection

Wenli Wang, Yicheng Chen, Bo Wang, Lisong Wang, more

physica status solidi (RRL) – Rapid Research Letters > 18 > 1 > n/a - n/a

Unidirectional magnetic anisotropy induced by exchange bias (EB) between ferromagnetic and antiferromagnetic layers is of paramount importance in various spintronic devices. Traditional setting and optimization of EB involve cooling through the Néel temperature of the antiferromagnets under biasing field in vacuum furnace which takes hours of time and cannot realize localized control of EB. Herein,...

article

Circ_0001658 promotes the proliferation and metastasis of osteosarcoma cells via regulating miR‐382‐5p/YB‐1 axis

Lisong Wang, Pengbin Wang, Xiujun Su, Bo Zhao

Cell Biochemistry and Function > 38 > 1 > 77 - 86

Circular RNA (circRNA) can modulate the gene expression via sponging microRNA (miRNA) in multiple malignancies. Nevertheless, the detailed function of circ_0001658 in osteosarcoma (OS) and its regulatory mechanism remain elusive. Real‐time PCR was carried out to detect the expressions of circ_0001658, miR‐382‐5p, and Y box‐binding protein 1 (YB‐1) mRNA in OS tissues. Besides, western blot was done...

article

MicroRNA‐193a‐5p exerts a tumor suppressor role in glioblastoma via modulating NOVA1

Lingjiang Jin, Huiyong Li, Junyou Wang, Da Lin, more

Journal of Cellular Biochemistry > 120 > 4 > 6188 - 6197

Background and Objectives Glioblastoma (GBM) is the most common and lethal of intracranial tumors, which is characterized by extensive proliferation and the diffused invasion of tumor cells. MicroRNA‐193a‐5p (miR‐193a‐5p) have been demonstrated previously as a functional suppressor in the development and progression of various cancers. The current study aimed to investigate whether miR‐193a‐5p influences...

article

Transmission Properties of One-Dimensional Magneto-Optical Photonic Crystals Containing Graphene Nanolayers

Yongfeng Gao, Lisong Wang, Yuanhui Feng, Liu He, more

Journal of Superconductivity and Novel Magnetism > 2019 > 32 > 4 > 1049-1055

Photonic crystals containing graphene nanolayers have been attracting increasing attention due to their distinctive properties. In this paper, we present a theoretical analysis on the transmission properties of magneto-photonic crystals containing graphene nanolayers by using the transfer matrix method. The investigation shows that unidirectional defect modes with high transmittance can be achieved...

article

Three new species and one new combination of Gypsoplaca (lichenized Ascomycota) from the Hengduan Mountains in China

Haixia Shi, Xinyu Wang, Yuanfei Zhou, Dong Liu, more

Mycological Progress > 2018 > 17 > 7 > 781-790

Three new species are described as follows: Gypsoplaca alpina H. X. Shi and Li S. Wang, G. bullata H. X. Shi and Li S. Wang, and G. rosulata H. X. Shi, Li S. Wang, and Timdal sp. nov. Gypsoplaca alpina is characterized by a small thallus, upper cortex with very thick gelatinized layer, ascocarp warty with a cerebriform ridging, and by growing on soil in alpine meadows. Gypsoplaca bullata characterized...

article

A Novel SiO₂‐Supported Fluorine Modified Chromium–Vanadium Bimetallic Catalyst for Ethylene Polymerization and Ethylene/1‐Hexene Copolymerization

Qiaoqiao Sun, Lisong Wang, Ruihua Cheng, Zhen Liu, more

Macromolecular Reaction Engineering > 11 > 5 > n/a - n/a

Phillips catalyst is one of the most significant industrial ethylene polymerization catalysts. Chemical modifications have been carried out to tune the Phillips catalyst performance and improve the polyethylene properties. After the modification of the catalyst by fluorine, the polyethylene product with higher molecular weight (MW) and narrower molecular weight distribution (MWD) is suitable for producing...

article

Diversity, Antimicrobial Activity, and Biosynthetic Potential of Cultivable Actinomycetes Associated with Lichen Symbiosis

Chengbin Liu, Yi Jiang, Xinyu Wang, Dongbo Chen, more

Microbial Ecology > 2017 > 74 > 3 > 570-584

Lichens are structured associations of a fungus with a cyanobacteria and/or green algae in a symbiotic relationship, which provide specific habitats for diverse bacterial communities, including actinomycetes. However, few studies have been performed on the phylogenetic relationships and biosynthetic potential of actinomycetes across lichen species. In the present study, a total of 213 actinomycetes...

article

An adaptive memetic framework for multi-objective combinatorial optimization problems: studies on software next release and travelling salesman problems

Xinye Cai, Xin Cheng, Zhun Fan, Erik Goodman, more

Soft Computing > 2017 > 21 > 9 > 2215-2236

In this paper, we propose two multi-objective memetic algorithms (MOMAs) using two different adaptive mechanisms to address combinatorial optimization problems (COPs). One mechanism adaptively selects solutions for local search based on the solutions’ convergence toward the Pareto front. The second adaptive mechanism uses the convergence and diversity information of an external set (dominance archive),...

article

High-resolution XPS and DFT investigations into Al-modified Phillips CrOx/SiO2 catalysts

Yue Ma, Lisong Wang, Zhen Liu, Ruihua Cheng, more

Journal of Molecular Catalysis. A, Chemical > 2015 > 401 > Complete > 1-12

In this work, the effects of Al-modification on Phillips catalysts were investigated by high-resolution X-ray photoelectron spectroscopy (XPS) and the performance in ethylene polymerization reactions. Density functional theory (DFT) method was used to achieve a deeper mechanistic understanding. The decreased Cr 2p binding energies (BE), related with an increase in electron density of chromium by Al-modification,...

article

Enzyme-free signal amplification for electrochemical detection of Mycobacterium lipoarabinomannan antibody on a disposable chip

Lisong Wang, Chuan Leng, Sheng Tang, Jianping Lei, more

Biosensors and Bioelectronics > 2012 > 38 > 1 > 421-424

A simple, rapid, and disposable immunosensor at screen printed carbon electrode (SPCE) was developed by using gold nanoparticles (AuNPs) labeled Staphylococcal protein A (Au-SPA) as the electrochemical tag for detection of lipoarabinomannan antibody (anti-LAM). The immunosensor as the disposable chip was prepared by immobilizing capture antigen on screen printed carbon working electrode by passive...

chapter

Support Vector Machines Based on K Nearest Neighbor Algorithm for Outlier Detection in WSNs

Suya Xu, Caiping Hu, Lisong Wang, Guobin Zhang

2012 8th International Conference on Wireless Communications, Networking and Mobile Computing > 1 - 4

2012 8th International Conference on Wireless Communications, Networking and Mobile Computing (WiCOM)

Support vector machine approach is an effective technique to solve poly-dimensional outlier detection, which can avoid the curse of dimensionality problem and has higher accuracy. One-class support vector machine-based outlier detection techniques take advantage of spatial and temporal correlations that exist between sensor data to cooperatively identify outliers. However, for large scale training...

article

Biomass, diversity and composition of epiphytic macrolichens in primary and secondary forests in the subtropical Ailao Mountains, SW China

Su Li, Wenyao Liu, Lisong Wang, Wenzhang Ma, more

Forest Ecology and Management > 2011 > 261 > 11 > 1760-1770

Epiphytic macrolichen litterfall was collected over 3 years from primary evergreen broad-leaved forests (PF), Populus bonatii secondary forests (PBSF), middle-aged oak secondary forests (MOSF) and old-aged oak secondary forests (OOSF) of the Ailao Mountains in SW China. To assess changes in the epiphyte communities of the subtropical forests, we compared the differences in biomass, species diversity...

article

Three-dimensional culture of osteoblast seeded on titanium alloy scaffold with controlled internal structure fabricated using electron beam melting techniques in vitro

Hongxun Sang, Guochen Li, Lin Wang, Xiang Li, more

Bone > 2010 > 47 > Supplement 3 > S422

article

Antioxidant activities of edible lichen Ramalina conduplicans and its free radical-scavenging constituents

Heng Luo, Xinli Wei, Yoshikazu Yamamoto, Yanpeng Liu, more

Mycoscience > 2010 > 51 > 5 > 391-395

The aim of this study was to evaluate the antioxidant properties of an edible lichen Ramalina conduplicans. The extract exhibited potent anti-linoleic acid peroxidation activity, free radical-scavenging activity, and reducing power. The total phenolic contents were found to be high in the extract. Activity-guided bioautographic thin layer chromatography (TLC) and HPLC identified sekikaic acid and...

article

DFT and PIO study of the influences of Mo valance state and surface hydroxyl on supported-MoOx catalysts for ethylene polymerization

Xiaochun Cao, Ruihua Cheng, Zhen Liu, Lisong Wang, more

Journal of Molecular Catalysis. A, Chemical > 2010 > 321 > 1-2 > 50-60

Phillips catalyst (CrO _x /SiO ₂ ) is an important industrial catalyst for ethylene polymerization, but the highly toxic chromium may contaminate the environment and do harm to human's health. Supported-MoO _x catalyst with low toxicity has potential to replace Phillips catalyst if its catalytic performance could be improved. In this work, models of molybdenum active sites with...

article

Antioxidant activities of edible lichen Ramalina conduplicans and its free radical-scavenging constituents

Heng Luo, Xinli Wei, Yoshikazu Yamamoto, Yanpeng Liu, more

Mycoscience > 2010 > 51 > 5 > 391-395

The aim of this study was to evaluate the antioxidant properties of an edible lichen Ramalina conduplicans. The extract exhibited potent anti-linoleic acid peroxidation activity, free radical-scavenging activity, and reducing power. The total phenolic contents were found to be high in the extract. Activity-guided bioautographic thin layer chromatography (TLC) and HPLC identified sekikaic acid and...

article

Fuzzy reasoning for image compression using adaptive triangular plane patches

Lisong Wang, Lifeng He, Atsuko Mutoh, Tsuyosi Nakamura, more

Fuzzy Sets and Systems > 1999 > 103 > 2 > 277-284

In this article, we present a method called adaptive patch adjustment that improves the performance of digital image data compression using triangular plane patches. The method is designed to adaptively adjust the three-dimension position of triangular plane patches that approximate the corresponding luminance curved surfaces of an original image. Such an adjustment considers the influence of all...

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