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40篇 您的检索式:作者名="Dechang Wang"
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1The effect of applied voltages on the structure,apatite-inducing ability and antibacterial ability of micro arc oxidation coating formed on titanium surface显示文摘The micro arc oxidation(MAO)coatings with different concentrations of Ca,P and Zn elements are successfully formed on the titanium substrate at the different applied voltages.After MAO treatment,the MAO coating exhibits the porous surface structure and composed of anatase and rutile TiO2 phases.Meanwhile,the average size and density of micro-pores on the MAO coatings have been modified via the adjusting the applied voltages.In addition,the contents of the incorporated elements such as Zn,Ca and P elements in the MAO coatings have been optimized.The bonding strength test results reveal that the MAO coating shows higher bonding strength,which is up to 45±5 MPa.Compared to the pure Ti plate,the MAO coating formed at 350 and 400 V show good apatite-inducing ability.Meanwhile,the MAO coating containing Zn,Ca and P elements have better antibacterial ability for E.coli and S.aureus.Thus,the incorporation of Zn,Ca and P elements was an effective method to improve the antibacterial ability.Moreover,the concentrations of Zn,Ca and P elements could be adjusted with the changing of the applied voltages.As a result,the enhancement of the antibacterial ability on the MAO coating surfaces was depended on the comprehensive effect of the incorporated elements and the surface property of MAO coatings.Qing Du Daqing Wei Yaming Wang Su Cheng Shang Liu Yu Zhou Dechang Jia 2018Bioactive Materials2018,3,4:6
2Fault Diagnosis of Power Transformers Using Graph Convolutional Network显示文摘Existing methods for transformer fault diagnosis either train a classifier to fit the relationship between dissolved gas and fault type or find some similar cases with unknown samples by calculating the similarity metrics.Their accuracy is limited,since they are hard to learn from other algorithms to improve their own performance.To improve the accuracy of transformer fault diagnosis,a novel method for transformer fault diagnosis based on graph convolutional network(GCN)is proposed.The proposed method has the advantages of two kinds of existing methods.Specifically,the adjacency matrix of GCN is utilized to fully represent the similarity metrics between unknown samples and labeled samples.Furthermore,the graph convolutional layers with strong feature extraction ability are used as a classifier to find the complex nonlinear relationship between dissolved gas and fault type.The back propagation algorithm is used to complete the training process of GCN.The simulation results show that the performance of GCN is better than that of the existing methods such as convolutional neural network,multi-layer perceptron,support vector machine,extreme gradient boosting tree,k-nearest neighbors and Siamese network in different input features and data volumes,which can effectively meet the needs of diagnostic accuracy.Wenlong Liao Dechang Yang Yusen Wang Xiang Ren 2021CSEE Journal of Power and Energy Systems2021,7,2:4
3Comparison of Charlson's weighted index of comorbidities with the chronic health score for the prediction of mortality in septic patients显示文摘Cui Yunliang Wang Tao Bao Jun Tian Zhaotao Lin Zhaofen Chen Dechang 2014Chinese Medical Journal2014,,14:4
4Microstructure and mechanical properties of SiC_(f)/SiBCN ceramic matrix composites显示文摘SiC fiber reinforced SiBCN ceramic matrix composites(CMCs)have been prepared by mechanical alloying and consolidated by hot pressing.During the sintering process,amorphous SiC fibers crystallized seriously and transformed into-SiC.Meanwhile,the interfacial carbothermal reactions caused the strong bonding between the matrix and fibers.As a result,SiCf/SiBCN fractured in a typical catastrophic manner.Room-temperature mechanical properties reached the maximums for the CMC samples sintered at 1900℃/60 MPa/30 min.The density,flexural strength,Young’s modulus and fracture toughness are 2.56±0.02 g/cm^(3),284.3±17.9 MPa,183.5±11.1 GPa and 2.78±0.14 MPa·m^(1/2),respectively.Jiaying WANG Zhihua YANG Xiaoming DUAN Dechang JIA Yu ZHOU 2015Journal of Advanced Ceramics2015,4,1:3
5Mechanical tension promotes skin nerve regeneration by upregulating nerve growth factor expression显示文摘This study aimed to explore the role of mechanical tension in hypertrophic scars and the change in nerve density using hematoxylin-eosin staining and S100 immunohistochemistry, and to observe the expression of nerve growth factor by western blot analysis. The results demonstrated that mechanical tension contributed to the formation of a hyperplastic scar in the back skin of rats, in conjunction with increases in both nerve density and nerve growth factor expression in the scar tissue. These experimental findings indicate that the cutaneous nervous system plays a role in hypertrophic scar formation caused by mechanical tension.Hu Xiao Dechang Wang Ran Huo Yibing Wang Yongqiang Feng Qiang Li 2013Neural Regeneration Research2013,8,17:2
6Microstructural evolution of h-BN matrix composite ceramics with La-Al-Si-O glass phase during hot-pressed sintering显示文摘BN/La-Al-Si-O composite ceramics were fabricated by hot-pressed sintering using hexagonal boron nitride(h-BN),lanthanum oxide(La_(2)O_(3)),aluminia(Al_(2)O_(3)),and amorphous silica(SiO_(2))as the raw materials.The effects of sintering temperature on microstructural evolution,bulk density,apparent porosity,and mechanical properties of the h-BN composite ceramics were investigated.The results indicated that La-Al-Si-O liquid phase was formed during sintering process,which provided an environment for the growth of h-BN grains.With increasing sintering temperature,the cristobalite phase precipitation and h-BN grain growth occurred at the same time,which had a significant influence on the densification and mechanical properties of h-BN composite ceramics.The best mechanical properties of BN/La-Al-Si-O composite ceramics were obtained under the sintering temperature of 1700℃.The elastic modulus,flexural strength,and fracture toughness were 80.5 GPa,266.4 MPa,and 3.25 MPa·m^(1/2),respectively.Baofu QIU Xiaoming DUAN Zhuo ZHANG Chen ZHAO Bo NIU Peigang HE Delong CAI Lei CHEN Zhihua YANG Yujin WANG Dechang JIA Yu ZHOU 2021Journal of Advanced Ceramics2021,10,3:2
7Data-driven Missing Data Imputation for Wind Farms Using Context Encoder显示文摘High-quality datasets are of paramount importance for the operation and planning of wind farms.However,the datasets collected by the supervisory control and data acquisition(SCADA)system may contain missing data due to various factors such as sensor failure and communication congestion.In this paper,a data-driven approach is proposed to fill the missing data of wind farms based on a context encoder(CE),which consists of an encoder,a decoder,and a discriminator.Through deep convolutional neural networks,the proposed method is able to automatically explore the complex nonlinear characteristics of the datasets that are difficult to be modeled explicitly.The proposed method can not only fully use the surrounding context information by the reconstructed loss,but also make filling data look real by the adversarial loss.In addition,the correlation among multiple missing attributes is taken into account by adjusting the format of input data.The simulation results show that CE performs better than traditional methods for the attributes of wind farms with hallmark characteristics such as large peaks,large valleys,and fast ramps.Moreover,the CE shows stronger generalization ability than traditional methods such as auto-encoder,K-means,k-nearest neighbor,back propagation neural network,cubic interpolation,and conditional generative adversarial network for different missing data scales.Wenlong Liao Birgitte Bak-Jensen Jayakrishnan Radhakrishna Pillai Dechang Yang Yusen Wang 2022Journal of Modern Power Systems and Clean Energy2022,10,4:1
8Chemical etching of micro-plasma oxidized titania film on titanium alloy and apatite deposited on the surface of modified titania film in vitro显示文摘Daqing Wei Yu Zhou Yaming Wang Dechang Jia 2007Thin Solid Films2007,,8:1
9Characteristic of microarc oxidized coatings on titanium alloy formed in electrolytes containing chelate complex and nano-HA显示文摘Daqing Wei Yu Zhou Yaming Wang Dechang Jia 2006Applied Surface Science2006,,11:1
10Effect of BN content on microstructures,mechanical and dielectric properties of porous BN/Si3N4 composite ceramics prepared by gel casting显示文摘Wang Shengjin Jia Dechang 2013Ceram Int2013,39,:1
11Synthesis of SrBi2 Ta2O9 nanocrystalline powder by a modified sol-gel process using bismuth subnitrate as bismuth source 显示文摘Zhou Yu Wang Wen Jia Dechang 2002Mater Chem Phys2002,77,1:1
12Thermoelectric properties and electronic structure of Al-doped ZnO显示文摘Xiurong Qu Wen Wang Shuchen Lv Dechang Jia 2010Solid State Communications2010,,4:1
13Characteristic and in vitro bioactivity of a microarc-oxidized TiO 2 -based coating after chemical treatment显示文摘Daqing Wei Yu Zhou Dechang Jia Yaming Wang 2007Acta Biomaterialia2007,,5:1
14Biomimetic apatite deposited on microarc oxidized anatase-based ceramic coating显示文摘Daqing Wei Yu Zhou Dechang Jia Yaming Wang 2007Ceramics International2007,,5:1
15Design and performance prediction of a novel zeolite-water adsorption air conditioner显示文摘Wang Dechang Xia Zaizhong Wu Jingyi 2006En- ergy Conversion and Management2006,47,5:1
16Damage boundaryof packaging system under rectangular pulse excitation显示文摘Wang Z L Wu C F XI Dechang 1998Packaging Technology Science1998,11,:1
17Effect of Wuda granule on gastrointestinal function recovery after laparoscopic intestinal resection:a randomized–controlled trial显示文摘Background Previous studies have suggested that the Wuda granule(WDG)could promote the recovery of gastrointestinal(GI)function after gynecologic abdominal surgery.This trial aimed to investigate the efficacy and safety of WDG in the rapid recovery of GI function in patients after laparoscopic intestinal resection in the setting of enhanced recovery after surgery(ERAS)-based perioperative care.Methods We performed a randomized,double-blind,placebo-controlled pilot trial.Thirty patients who met the inclusion criteria were randomly assigned to either the WDG group or the placebo group in a 1:1 ratio.The patients received WDG or placebo twice a day in addition to ERAS-based perioperative care,starting on post-operative Day 1 until Day 3.The primary outcomes were time to first bowel movement and time to first tolerance of solid food.The secondary outcomes were time to first flatus,length of hospital stay(LOS),and post-operative ileus-related morbidity.Adverse events were also recorded.Results There were no statistically significant differences in baseline characteristics between the two groups.The median time to first bowel movement was significantly decreased in the WDG group compared with the control group(27.6 vs 50.1 h;P<0.001),but the median times to first flatus(22.9 vs 25.1 h;P>0.05)and LOS(5.0 vs 5.0 days;P>0.05)were not statistically different.The occurrence rates of post-operative nausea,vomiting,abdominal distension,and abdominal pain were similar in the two groups.No adverse events occurred in any patients.Conclusions The addition of WDG to ERAS post-operative care after laparoscopic intestinal resection can safely promote the rapid recovery of GI function.Haiping Zeng Wei Wang Lixing Cao Yuyan Wu Wenwei Ouyang Dechang Diao Jin Wan Qicheng Chen Zhiqiang Chen 2022Gastroenterology Report2022,10,1:1
18Removal of copper from aqueous solution by carbon nanotube/calcium alginate composites显示文摘Yanhui Li Fuqiang Liu Bing Xia Qiuju Du Pan Zhang Dechang Wang Zonghua Wang Yanzhi Xia 2010Journal of Hazardous Materials2010,,1:1
19Removal of lead from aqueous solution by activated carbon prepared from Enteromorpha prolifera by zinc chloride activation显示文摘Yanhui Li Qiuju Du Xiaodong Wang Pan Zhang Dechang Wang Zonghua Wang Yanzhi Xia 2010Journal of Hazardous Materials2010,,1:1
20Activating transcription factor 4 protects mice against sepsis-induced intestinal injury by regulating gut-resident macrophages differentiation显示文摘Background: Gut-resident macrophages (gMacs) supplemented by monocytes-to-gMacs differentiation play a critical role in maintaining intestinal homeostasis. Activating transcription factor 4 (ATF4) is involved in immune cell differentiation. We therefore set out to investigate the role of ATF4-regulated monocytes-to-gMacs differentiation in sepsis-induced intestinal injury.Methods: Sepsis was induced in C57BL/6 wild type (WT) mice andAtf4-knockdown (Atf4+/-) mice by cecal ligation and puncture or administration of lipopolysaccharide (LPS). Colon, peripheral blood mononuclear cells, sera, lung, liver, and mesenteric lymph nodes were collected for flow cytometry, hematoxylin and eosin staining, immunohistochemistry, quantitative reverse transcription polymerase chain reaction, and enzyme-linked immunosorbent assay, respectively.Results: CD64, CD11b, Ly6C, major histocompatibility complex-II (MHC-II), CX3CR1, Ly6G, and SSC were identified as optimal primary markers for detecting the process of monocytes-to-gMacs differentiation in the colon of WT mice. Monocytes-to-gMacs differentiation was impaired in the colon during sepsis and was associated with decreased expression of ATF4 in P1 (Ly6Chi monocytes), the precursor cells of gMacs.Atf4 knockdown exacerbated the impairment of monocytes-to-gMacs differentiation in response to LPS, resulting in a significant reduction of gMacs in the colon. Furthermore, compared with WT mice,Atf4+/- mice exhibited higher pathology scores, increased expression of inflammatory factor genes (TNF-α, IL-1β), suppressed expression of CD31 and vascular endothelial-cadherin in the colon, and increased translocation of intestinal bacteria to lymph nodes and lungs following exposure to LPS. However, the aggravation of sepsis-induced intestinal injury resulting fromAtf4 knockdown was not caused by the enhanced inflammatory effect of Ly6Chi monocytes and gMacs.Conclusion: ATF4, as a novel regulator of monocytes-to-gMacs differentiation, plays a critical role in protecting mice against sepsis-induced intestinal injury, suggesting that ATF4 might be a potential therapeutic target for sepsis treatment.Zhenliang Wen Xi Xiong Dechang Chen Lujing Shao Xiaomeng Tang Xuan Shen Sheng Zhang Sisi Huang Lidi Zhang Yizhu Chen Yucai Zhang Chunxia Wang Jiao Liu 2022Chinese Medical Journal2022,135,21:1
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