|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Microstructure and Properties of an Al 6061/Galvanized Plate Fabricated by CMT Welding显示文摘Aluminum alloy 6061 was welded with zinc coated low carbon steel by cold metal transfer (CMT).The microstructure composition,morphology and growth process of the welding joint and the HAZ were researched.The weld area on the side of the galvanized steel sheet mainly contains Fe2Al5.And on the side of the aluminum alloy substrate,it is mainly filled with a needle-like FeAl3.At the same time,Al8Fe2Si is formed at the edge of FeAl3.The zinc-rich region on the side of the aluminum alloy mainly contains an aluminum-zinc solid solution and an aluminum-zinc co-crystal,and the current size had no significant effect on the type and morphology of the compounds produced in the interface layer. | 张琪 张培磊 于治水 YAN Hua SHI Haichuan WU Di LI Shaowei TIAN Yingtao | 2020 | Journal of Wuhan University of Technology(Materials Science)2020,35,5: | 2 |
| 2 | Host–Guest Molecular Recognition at Liquid–Liquid Interfaces显示文摘Host–guest molecular recognition at the liquid–liquid interface endows the interface with unique properties,including stimuli-responsiveness and self-regulation,due to the dynamic and reversible nature of non-covalent interactions.Increasing research efforts have been put into the preparation of supramolecular interfacial systems such as films and microcapsules by integrating functional components(e.g.,colloidal particles,polymers)at the interface,providing tremendous opportunities in the areas of encapsulation,delivery vehicles,and biphasic reaction systems.In this review,we summarize recent progress in supramolecular interfacial systems assembled by host–guest chemistry,and provide an overview of the fabrication process,functions,and promising applications of the resultant constructs. | Beibei Wang Hao Chen Tan Liu Shaowei Shi Thomas P.Russell | 2021 | Engineering2021,7,5: | 2 |
| 3 | Immobilization of urease in metal–organic frameworks via biomimetic mineralization and its application in urea degradation显示文摘Enzyme immobilization has been accepted as an efficient technique for improving the stability and recyclability of enzymes.Herein,biomimetic mineralization strategy was employed to achieve the immobilization of urease in a type of metal–organic frameworks(zeolite imidazolate framework-8,ZIF-8),and the immobilized enzyme urease@ZIF-8 was systematically evaluated for its structure,activity,stability and recyclability,using the hydrolysis of urea as a model.The entrapment of urease was found to be realized in a synchronous manner with the formation of ZIF-8 crystal.The loading of urease in ZIF-8 was measured to be ca.10.6%through the bicinchoninic acid(BCA)protein assay.The encapsulated urease could efficiently maintain its native conformation,which endowed the immobilized urease with excellent activity and stability,even in harsh conditions(e.g.,in the presence of trypsin,acidic or alkali conditions,or at high temperature).Further,urease@ZIF-8 exhibited good recyclability during the degradation of urea,in which it could keep 58.86%of initial activity after being used for 5 cycles.Thus,biomimetic mineralization could be potentially utilized as a promising method to prepare immobilized ureases with superior activity,stability and recyclability,thereby facilitating the construction of efficient catalysts for industrial biocatalysis and biosensing. | Xiao Liang Qing Li Zhiyuan Shi Shaowei Bai Quanshun Li | 2020 | Chinese Journal of Chemical Engineering2020,28,8: | 1 |
| 4 | Research on the Production Efficiency andUtilizing Rate of Potassium Fertilizer for Rape in Yunnan Province 显示文摘 | Minglian FU Genze U Xiaoyan YUAN Derong CHENG Xuan ZHU Shengguang WEI Hongyan LJ Shi PENG Yuankuan LEI Bin HE Heming WEN Shaowei YU | 2011 | Agricultural Science & Technology2011,12,14: | 1 |
| 5 | The mechanism of slope instability due to rainfall-induced structural decay of earthquake-damaged loess显示文摘Natural loess slopes are characterized by a strong geological structure,which is an important factor in maintaining slope stability.The magnitude and duration of the earthquake may disturb the soil structure at different levels degrees,locally changing the arrangement between soil particles.The process of rainfall humidification weakens the cementation between soil particles,and the disturbance and humidification change the structural state of the soil,which in turn causes sliding of the slope along with the decay of soil mechanical properties.As slope instability is often the result of a series of post-earthquake ripple effects,it is of great scientific significance to study the mechanism of slope instability due to the structural decay of earthquake-damaged loess exacerbated by rainfall.In this paper,the impact of structural decay of loess on slope stability is simulated by GEOSTUDIO software under three conditions:pre-earthquake rainfall,post-earthquake rainfall and earthquake,taking the landslide in Buzi Village,Min County,Gansu Province as an example.The comparative analysis of the calculation results shows that the structural properties of the slope without earthquake disturbance are influenced by infil-tration amount.When it is fully saturated,the structural properties are similar to those of saturated soil,and the safety factor is reduced by 12.9%.In addition,the earthquake intensity and duration have different degrees of structural damage to the soil.When the structure is fully damaged,it is similar to that of remodelled soil,and the safety factor is reduced by 45.84%.Notably,the process of the earthquake and the following humidification generates the most serious damage to the loess structure,with a reduction in the safety factor of up to 56.15%.The quantitative analysis above obviously illustrates that the post-earthquake rainfall causes the most severe damage to structural loess slopes,and the resulting landslide hazard should not be underestimated. | Hu Tao Mengmeng Zhang Li Gong Xi Shi Yijie Wang Guoqiang Yang Shaowei Lei | 2022 | Earthquake Research Advances2022,2,3: | 1 |
| 6 | Application of possible velocity in design for highway alignment显示文摘 | YANG Shaowei SHI Feirong PAN Binghong etal | 2004 | Joumal of Chang''an University: Natural Science Edition2004,24,3: | 1 |
| 7 | MiR-516a-3p is a Novel Mediator of Hepatocellular Carcinoma Oncogenic Activity and Cellular Metabolism显示文摘Hepatocellular carcinoma(HCC)remains one of the most lethal malignancies.We previously demonstrated that the chromosome 19 microRNA cluster(C19MC)was associated with tumor burden and prognosis in patients with HCC.In the current study,we aim to explore the role of miR-516a-3p-an identical mature microRNA(miRNA)co-spliced by four oncogenic pre-miRNAs of C19MC(i.e.,mir-516a-1,mir-516a-2,mir-516b-1,and mir-516b-2)-in HCC.In our cohort of HCC patients,miR-516a-3p was highly expressed in HCC tissues in comparison with adjacent non-tumor tissues.High expression of tumor miR-516a-3p significantly correlated with advanced tumor stages,distinguished high HCC recurrence and mortality,and independently predicted poor prognosis.We further found that miR-516a-3p enhanced the proliferation,migration,and invasiveness of HCC cells in vitro and promoted tumor growth and metastasis in vivo.Among cancer cells,miR-516a-3p could be delivered via exosomes or extracellular vesicles and increased the oncogenic activity of recipient cells.Moreover,we performed comprehensive transcriptomics,proteomics,and metabolomics analysis on the potential mechanism underlying miR-516a-3p-promoted oncogenicity.MixOmic DIABLO analysis showed a close correlation and strong cluster consistency between the proteomics and metabolomics datasets.We further confirmed six proteins(i.e.,LMBR1,CHST9,RBM3,SLC7A6,PTGFRN,and NOL12)as the direct targets of miR-516a-3p and as central players in miR-516a-3p-mediated metabolism regulation.The integrated multi-omics and co-enriched pathway analysis showed that miR-516a-3p regulates the metabolic pathways of HCC cells,particularly purine and pyrimidine metabolism.In conclusion,our findings suggest that miR-516a-3p promotes malignant behaviors in HCC cells by regulating cellular metabolism and affecting neighboring cells via the exosome delivery system.Thus,we suggest miR-516a-3p as a novel molecular target for HCC therapy. | Tao Rui Xueyou Zhang Shi Feng Haitao Huang Shaowei Zhan Haiyang Xie Lin Zhou Shusen Zheng Qi Ling | 2022 | Engineering2022,,9: | 0 |
| 8 | A General Framework of Reversible Data Hiding with Controlled Contrast Enhancement显示文摘This paper proposes a two-step general framework for reversible data hiding(RDH)schemes with controllable contrast enhancement.The first step aims at preserving visual perception as much as possible on the basis of achieving high embedding capacity(EC),while the second step is used for increasing image contrast.In the second step,some peak-pairs are utilized so that the histogram of pixel values is modified to perform histogram equalization(HE),which would lead to the image contrast enhancement.However,for HE,the utilization of some peak-pairs easily leads to over-enhanced image contrast when a large number of bits are embedded.Therefore,in our proposed framework,contrast over-enhancement is avoided by controlling the degree of contrast enhancement.Since the second step can only provide a small amount of data due to controlled contrast enhancement,the first one helps to achieve a large amount of data without degrading visual quality.Any RDH method which can achieve high EC while preserve good visual quality,can be selected for the first step.In fact,Gao et al.’s method is a special case of our proposed framework.In addition,two simple and commonly-used RDH methods are also introduced to further demonstrate the generalization of our framework. | Shaowei Weng Yiyun Liu Yunqing Shi Bo Ou Chunyu Zhang Cuiping Wang | 2020 | Computers, Materials & Continua2020,,1: | 0 |
| 9 | Stabilizing and structuring oil–oil interfaces by molecular brush surfactants显示文摘Oil-in-oil emulsions provide a unique platform for numerous applications not compatible with water or aqueous systems.However,the limited types and complicated synthesis process of surfactants are problematic.Here,we put forward a simple,yet powerful strategy to stabilize the oil–oil interface,then prepare oil-in-oil emulsions,by using the co-assembly of polar molecular brushes and nonpolar oligomeric ligands at the DMF–octane interface.Molecular brush surfactants(MBSs)form and assemble in situ at the interface,minimizing the interfacial energy and producing a robust film.We find that the binding energy of MBS to the interface is sufficiently high,leading to the construction of structured liquids by the interfacial jamming of MBSs.Using MBSs as emulsifiers,different types of emulsions including DMF-inoctane,octane-in-DMF,and high internal phase emulsions can be easily prepared,showing promising applications in microreactor systems and advanced composite materials. | Beibei Wang Zhao Zhang Weixiao Feng Jiaqiu Luo Shaowei Shi | 2022 | Aggregate2022,3,6: | 0 |
| 10 | Formation of hierarchically 3D cactus-like architecture as efficient Mott-Schottky electrocatalyst for long-life Li-S batteries显示文摘Searching for new promising electrocatalysts with favorable architectures allowing abundant active sites and remarkable structure stability is an urgent task for the practical application of lithium-sulfur(Li-S)batteries.Herein,inspired by the structure of natural cactus,a new efficient and robust electrocatalyst with three-dimensional(3D)hierarchical cactus-like architecture constructed by functional zero-dimensional(0D),one-dimensional(1D),and two-dimensional(2D)components is developed.The cactus-inspired catalyst(denoted as Co@NCNT/NCNS)consists of N-doped carbon nanosheets(NCNS)and standing Ndoped carbon nanotubes(NCNT)forest with embedded Co nanoparticles on the top of NCNT,which was achieved by an in situ catalytic growth technique.The unique structure design integrates the advantages of 0D Co accelerating catalytic redox reactions,1D NCNT providing a fast electron pathway,and 2D NCNS assuring strong structure stability.Especially,the rich Mott-Schottky heterointerfaces between metallic Co and semiconductive NCNT can further facilitate the electron transfer,thus improving the electrocatalyst activity.Consequently,a Li-S battery with the Co@NCNT/NCNS modified separator achieves ultralong cycle life over 4000 cycles at 2 C with ultralow capacity decay of 0.016%per cycle,much superior over that of recently reported batteries.This work provides a new strategy for developing ultra-stable catalysts towards long-life Li-S batteries. | Biao Wang Yilun Ren Shaowei Chen Qingxi Zhai Yuxuan Shi Yujie Ma Shaochun Tang Xiangkang Meng | 2023 | Nano Research2023,16,7: | 0 |