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| 1 | Combined and interactive effects of interference fit and preloads on composite joints显示文摘The combined and interactive effects of the bolt-hole fit conditions and the preloads of the fasteners on the load carrying capacity of single-lap composite-to-titanium bolted joints have been investigated both experimentally and numerically. Quasi-static tests of the hybrid joints with different fit conditions are implemented, and a three dimensional finite element progressive failure analysis model is proposed to predict the influences of the bolt-hole fit conditions and fastener's preloads on the mechanical behaviors of the joints. Based on the experimental validated simulation method, a multi-factor, mixed levels orthogonal design table and the analysis of variance method are used to arrange the simulation conditions and to further study the interactive effects of preloads and fit conditions. Through the analysis of the results, for the researched double bolt, single-lap composite-titanium joints, it is found that: the effects of both the interference fit and the preloads change from positive into negative mode with the increase of the interference fit values or preload values; appropriate bolt-hole fit conditions and preloads can improve the bolt-hole contact conditions of the loaded joints, and then retard the fiber failures around the fastener holes, and increase the load carrying capacity of the joints eventually; the interactive effect of the bolt-hole interference fit conditions and preloads cannot be ignored and the parameters need to be considered together and synthetically as the joints are being optimized. | Liu Longquan Zhang Junqi Chen Kunkun Wang Hai | 2014 | Chinese Journal of Aeronautics2014，27，3： | 13 |
| 2 | An improved artificial bee colony algorithm for steelmaking–refining–continuous casting scheduling problem显示文摘Steelmaking–refining–Continuous Casting(SCC) scheduling is a worldwide problem, which is NP-hard. Effective SCC scheduling algorithms can help to enhance productivity, and thus make significant monetary savings. This paper develops an Improved Artificial Bee Colony(IABC) algorithm for the SCC scheduling. In the proposed IABC, charge permutation is employed to represent the solutions. In the population initialization, several solutions with certain quality are produced by a heuristic while others are generated randomly. Two variable neighborhood search neighborhood operators are devised to generate new high-quality solutions for the employed bee and onlooker bee phases, respectively. Meanwhile, in order to enhance the exploitation ability, a control parameter is introduced to conduct the search of onlooker bee phase. Moreover, to enhance the exploration ability,the new generated solutions are accepted with a control acceptance criterion. In the scout bee phase, the solution corresponding to a scout bee is updated by performing three swap operators and three insert operators with equal probability. Computational comparisons against several recent algorithms and a state-of-the-art SCC scheduling algorithm have demonstrated the strength and superiority of the IABC. | Kunkun Peng Quanke Pan Biao Zhang | 2018 | Chinese Journal of Chemical Engineering2018，26，8： | 11 |
| 3 | BMPR2 and HIF1-α overexpression in resected osteosarcoma correlates with distant metastasis and patient survival显示文摘Objective: Bone morphogenetic protein receptor 2(BMPR2) and hypoxia-inducible factor 1-α(HIF1-α) existed abnormal expression in several types of cancer. However, their expressions and related roles in osteosarcoma are largely unknown.Methods:To investigate the clinical significance of BMPR2 and HIF1-αin osteosarcoma,we analyzed their expression levels in 103 osteosarcoma specimens by immunochemistry.Meanwhile,we conducted a follow-up to examine the metastatic behavior and overall survival(OS)of osteosarcoma patients.Results:Among 103 tissues,61 cases had BMPR2-positive expression and 57 cases had HIF1-αpositive expression.A significant correlation was noticed between BMPR2 and HIF1-αexpression in osteosarcoma specimens(P=0.035).Receiver-operating characteristic(ROC)curves were calculated to investigate the predictive value of the two markers in tumor metastasis.By means of univariate and multivariate analysis,BMPR2 and HIF1-αexpression,as well as higher tumor grade,were identified as significant risk factors for OS in patients with osteosarcoma.Kaplan-Meier survival analysis revealed that the patients with BMPR2 and HIF1-αpositive expression had worse OS compared with patients with BMPR2-negative or HIF1-α-negative staining.Conclusions:It can be concluded that BMPR2 and HIF1-αexpression is highly correlated with metastatic behavior in patients with osteosarcoma and can serve as predictive markers for metastasis and OS of these patients. | Shidong Wang Tingting Ren Yi Huang Xing Bao Kunkun Sun Danhua Shen Wei Guo | 2017 | Chinese Journal of Cancer Research2017，29，5： | 7 |
| 4 | Adsorption of Basic Dyes Using Walnut Shell-based Biochar Produced by Hydrothermal Carbonization显示文摘 | KANG Chunli ZHU Ling WANG Yixue WANG Yuhan XIAO Kunkun TIAN Tao | 2018 | Chemical Research in Chinese Universities2018，34，4： | 5 |
| 5 | Overexpression of the CmJAZ1-like gene delays flowering in Chrysanthemum morifolium显示文摘Chrysanthemum(Chrysanthemum morifolium)is one of the four major cut-flower plants worldwide and possesses both high ornamental value and cultural connotation.As most chrysanthemum varieties flower in autumn,it is costly to achieve annual production.JAZ genes in the TIFY family are core components of the jasmonic acid(JA)signaling pathway;in addition to playing a pivotal role in plant responses to defense,they are also widely implicated in regulating plant development processes.Here,we characterized the TIFY family gene CmJAZ1-like from the chrysanthemum cultivar‘Jinba’.CmJAZ1-like localizes in the nucleus and has no transcriptional activity in yeast.Tissue expression pattern analysis indicated that CmJAZ1-like was most active in the root and shoot apex.Overexpressing CmJAZ1-like with Jas domain deletion in chrysanthemum resulted in late flowering.RNA-Seq analysis of the overexpression lines revealed some differentially expressed genes(DEGs)involved in flowering,such as the homologs of the flowering integrators FT and SOC1,an FUL homolog involved in flower meristem identity,AP2 domain-containing transcription factors,MADS box genes,and autonomous pathway-related genes.Based on KEGG pathway enrichment analysis,the differentially transcribed genes were enriched in carbohydrate metabolic and fatty acid-related pathways,which are notable for their role in flowering in plants.This study preliminarily verified the function of CmJAZ1-like in chrysanthemum flowering,and the results can be used in molecular breeding programs aimed at flowering time regulation of chrysanthemum. | Yunxiao Guan Lian Ding Jiafu Jiang Yuanyue Shentu Wenqian Zhao Kunkun Zhao Xue Zhang Aiping Song Sumei Chen Fadi Chen | 2021 | Horticulture Research2021，8，1： | 3 |
| 6 | Experimental realization of a quantum image classifier via tensor-network-based machine learning显示文摘Quantum machine learning aspires to overcome intractability that currently limits its applicability to practical applications.However,quantum machine learning itself is limited by low effective dimensions achievable in stateof-the-art experiments.Here,we demonstrate highly successful classifications of real-life images using photonic qubits,combining a quantum tensor-network representation of hand-written digits and entanglement-based optimization.Specifically,we focus on binary classification for hand-written zeroes and ones,whose features are cast into the tensor-network representation,further reduced by optimization based on entanglement entropy and encoded into two-qubit photonic states.We then demonstrate image classification with a high success rate exceeding 98%,through successive gate operations and projective measurements.Although we work with photons,our approach is amenable to other physical realizations such as nitrogen-vacancy centers,nuclear spins,and trapped ions,and our scheme can be scaled to efficient multi-qubit encodings of features in the tensor-product representation,thereby setting the stage for quantum-enhanced multi-class classification. | KUNKUN WANG LEI XIAO WEI YI SHI-JU RAN PENG XUE | 2021 | Photonics Research2021，9，12： | 2 |
| 7 | Reversible switching between normal and thermally activated delayed fluorescence towards “smart” and single compound whitelight luminescence via controllable conformational distribution显示文摘An organic compound exhibiting simultaneously reversible switch between its emission colors and luminescence mechanisms,possessing high contrast from deep blue normal fluorescence(NF) to yellow thermally activated delayed fluorescence(TADF),is reported. Based on these two complementary colors, white-light emission combining NF and TADF from a single compound can be achieved in various states. Experimental results and density functional theory calculations indicate that the controllable conformational distribution under thermal and mechanical activation is the mechanism responsible for the reversible switching behavior. | Zuozheng He Xinyi Cai Zhiheng Wang Dongjun Chen Yunchuan Li Haobin Zhao Kunkun Liu Yong Cao Shi-Jian Su | 2018 | Science China Chemistry2018，61，6： | 2 |
| 8 | Effect of forging temperature on the microstructures and mechanical properties of the SiC_p/AZ91 magnesium matrix composite显示文摘In this paper,10 vol.pct SiCp/AZ91 magnesium matrix composite was fabricated by stir casting technology.The ingots were forged at temperatures of 320,370 and 420℃,respectively.XRD,OM and SEM were used to characterize microstructure of the composites.It was shown that the clusters of particles in the as-cast composite were largely eliminated,and that the tensile strength was improved obviously. | Kun WU Kunkun DENG Hai CHANG Yewei WU Xiaoshi HU Mingyi ZHENG | 2010 | Acta Metallurgica Sinica(English Letters)2010，23，2： | 1 |
| 9 | Enhanced plasma boriding with molybdenum using double glow plasma surface alloying technique显示文摘 | Lin Qin Kunkun Yang Chengsong Liu Bin Tang | 2012 | Materials Letters2012，，： | 1 |
| 10 | Characterization of three H5N5 and one H5N8 highly pathogenic avian influenza viruses in China显示文摘 | Kunkun Zhao Min Gu Lei Zhong Zhiqiang Duan Yan Zhang Yanmei Zhu Guo Zhao Mingjun Zhao Zhaoyang Chen Shunlin Hu Wenbo Liu Xiaowen Liu Daxin Peng Xiufan Liu | 2013 | Veterinary Microbiology (-)2013，，3： | 1 |
| 11 | Effect of extrusion on the microstructure and mechanical properties of a low-alloyed Mg-2Zn-0.8Sr-0.2Ca matrix composite reinforced by TiC nano-particles显示文摘A low-alloyed Mg-2Zn-0.8Sr-0.2Ca matrix composite reinforced by TiC nano-particles was successfully prepared by semi-solid stirring under the assistance of ultrasonic,and then the as-cast composite was hot extruded.The results indicated that the volume fraction of dynamical recrystallization and the recrystallized grain size have a certain decline at lower extrusion temperature or rate.The finest grain size of~0.30μm is obtained in the sample extruded at 200℃ and 0.1 mm/s.The as-extruded sample displays a strong basal texture intensity,and the basal texture intensity increases to 5.937 mud while the extrusion temperature increases from 200 to 240℃.The ultra-high mechanical properties(ultimate tensile strength of 480.2 MPa,yield strength of 462 MPa)are obtained after extrusion at 200℃ with a rate of 0.1 mm/s.Among all strengthening mechanisms for the present composite,the grain refinement contributes the most to the increase in strength.A mixture of cleavage facets and dimples were observed in the fracture surfaces of three as-extruded nanocomposites,which explain a mix of brittle-ductile fracture way of the samples. | Zedong Wang Kaibo Nie Kunkun Deng Jungang Han | 2022 | International Journal of Minerals,Metallurgy and Materials2022，29，11： | 1 |
| 12 | Coexistence of situs inversus totalis and hepatocellular carcinoma:A series of nine cases and a literature review显示文摘Hepatocellular carcinoma(HCC)is the most commonly diagnosed carcinoma and one of the leading causes of cancer-related deaths worldwide.Situs inversus totalis(SIT)is a congenital condition where in the internal organs of the abdomen and thorax lie in mirror images of their normal position.Thus far,there are very few reports on cases of SIT coexisting with HCC.Our case series is probably the largest series in world literature.The cohort of this retrospective study included a total of nine patients diagnosed with SIT-HCC and treated in our hospital between January 2013 and May 2018.Clinical characteristics,prognostic factors,and outcomes were summarized.Treatment strategies included surgery,transarterial chemoembolization,and microwave ablation.The diagnosis and treatment of patients with SIT are challenging because of organ reversion.The current treatment strategies for different stages of liver cancer are safe and feasible for patients with SIT-HCC. | Xiaowei Li Zhigang Fu Jiaming Zhong Kunkun Cao Xiaoxia Chen Ning Ding Li Liu Jian Zhai Zengqiang Qu | 2022 | Journal of Interventional Medicine2022，5，1： | 1 |
| 13 | Poly(acrylonitrile) encapsulated graphite as anode materials for lithium ion batteries显示文摘 | Kunkun Guo Qinmin Pan Shibi Fang | 2002 | Journal of Power Sources2002，，2： | 1 |
| 14 | Influence of konjac glucomannan on gelling properties and water state in egg white protein gel显示文摘 | Jinjin Liu Kunkun Zhu Ting Ye Shaolong Wan Yuntao Wang Dan Wang Bin Li Chao Wang | 2013 | Food Research International2013，，： | 1 |
| 15 | Effect of fracture parameters on desorption properties of shales 显示文摘 | Fan Kunkun Sun Runyuan Ma Zichao Zhang Yunfei Wei Yan Zhang Zhaozhao | 2013 | Applied Mechanics and Materials2013，，： | 1 |
| 16 | Study on Strain Trans-fer of Embedded Fiber Bragg Grating Sensors 显示文摘 | Rujun Wu Bailin Zheng Kunkun Fu | 2014 | Optical Engi- neering2014，53，8： | 1 |
| 17 | Radial Permeability Measurements for Shale Using Variable Pressure Gradients显示文摘Shale gas is becoming an important component of the global energy supply, with permeability a critical controlling factor for long-term gas production. Obvious deviation may exist between helium permeability determined using small pressure gradient(SPG) methods and methane permeability obtained under actual field production with variable pressure gradients(VPG). In order to more accurately evaluate the matrix permeability of shale, a VPG method using real gas(rather than He) is established to render permeability measurements that are more representative of reservoir conditions and hence response. Dynamic methane production experiments were performed to measure permeability using the annular space in the shale cores. For each production stage, boundary pressure is maintained at a constant and the gas production with time is measured on the basis of volume change history in the measuring pump. A mathematical model explicitly accommodating gas desorption uses pseudo-pressure and pseudo-time to accommodate the effects of variations in pressuredependent PVT parameters. Analytical and semi-analytical solutions to the model are obtained and discussed. These provide a convenient approach to estimate radial permeability in the core by nonlinear fitting to match the semi-analytical solution with the recorded gas production data. Results indicate that the radial permeability of the shale determined using methane is in the range of 1×10-6– 1×10-5 mD and decreases with a decrease in average pore pressure. This is contrary to the observed change in permeability estimated using helium. Bedding geometry has a significant influence on shale permeability with permeability in parallel bedding orientation larger than that in perpendicular bedding orientation. The superiority of the VPG method is confirmed by comparing permeability test results obtained from both VPG and SPG methods. Although several assumptions are used, the results obtained from the VPG method with reservoir gas are much closer to reality and may be directly used for actual gas production evaluation and prediction, through accommodating realistic pressure dependent impacts. | FAN Kunkun SUN Renyuan DEREK ELS WORTH DONG Mingzhe LI Yajun YIN Congbin LI Yanchao CHEN Zhongwei WANG Chunguang | 2020 | Acta Geologica Sinica(English Edition)2020，94，2： | 0 |
| 18 | Low-Velocity Impact and Compression-After-Impact Behaviour of Flax Fibre-Reinforced Composites显示文摘This study details the low-velocity impact and compression-after-impact(CAI)behaviour of flax fibre-reinforced polymer(FFRP)composites.The impact resistance,energy absorption efficiency and residual compressive strength as well as the damage pattern of the FFRP composites are compared with the corresponding features of glass fibre-reinforced polymer(GFRP)composites,and the effect of the stacking sequence of FFRP composites is also investigated.The results show that the cross-ply FFRP composites have the highest impact resistance,whereas the multi-directional ply composites have the lowest impact resistance but the highest energy absorption efficiency.The energy absorption efficiency of the FFRP composites is greater than that of the GFRP composites,but the penetration resistance and residual compressive strength of the FFRP composites are lower than those of the GFRP composites with the same stacking sequence,mainly due to the lower tensile strength and elongation at fracture of the FFRP composites.It is also reported that the damage pattern of the FFRP composites is localised cracking and delamination,unlike the overall delamination failure exhibited in the GFRP composites after CAI testing.Finally,the failure mechanisms of the FFRP and GFRP composites are detailed. | Yan Li Junjie Zhong Kunkun Fu | 2020 | Acta Mechanica Solida Sinica2020，33，4： | 0 |
| 19 | Numerical modeling of contaminant advection impact on hydrodynamic diffusion in a deformable medium显示文摘The self-weight of solid waste or machine-rolled compaction can induce or trigger contaminant migration in the landfill.Although the consolidation-induced hydraulic gradient driving solution transport has been extensively investigated,little attention has been paid to ion migration caused by its concentration gradient variation.It is necessary to more precisely predict the multi-stage contaminant transports in deforming porous material.Based on the modified Cam-clay model,the proposed fluid-solid coupled model can simulate the elastoplastic deformation behavior of layered kaolinite and KBr solution transport/sorption,and its modeling results were validated by published laboratory data.The solid-fluid interactions were analyzed by comparing various transport manners of K^(+)and Br^(−)from excess pore pressure generation to dissipation.Results reveal that the consolidation process can accelerate KBr solute advection from the contaminated layer into the uncontaminated layer,and then affects the subsequent diffusion,mechanical dispersion and sorption for K^(+)and Br^(−).The simulations also indicate that consolidation-induced solute transport is time-dependent,and therefore the ion diffusion and mechanical dispersion should receive more attention. | Chunguang Wang Shuqing Liu Xingkai Shi Guanglei Cui Hongxu Wang Xing Jin Kunkun Fan Songtao Hu | 2022 | Journal of Rock Mechanics and Geotechnical Engineering2022，14，3： | 0 |
| 20 | Generation of Textured Surfaces by Vibration‑Assisted Ball‑End Milling显示文摘Textured surfaces have been widely applied in many fields due to their excellent functional performances.Although several micro-scale surface texturing techniques have been used to fabricate surface textures,most are either very expensive,have material limitations,or lack flexibility.In this study,a novel textured surface generation method using vibration-assisted ball-end milling with a non-resonant vibrator is proposed.Firstly,the configuration of the vibration-assisted ball-end milling system is introduced.Then,the trajectories of the cutting edges are modeled and analyzed.Furthermore,an analysis of a non-resonant vibrator is conducted.Finally,surface texture machining experiments are conducted,and the feasibility of the proposed vibration-assisted ball-end milling method for surface texture fabrication is verified. | Yanjie Yuan Kunkun Yu Chen Zhang Qi Chen Weixiang Yang | 2023 | Nanomanufacturing and Metrology2023，6，2： | 0 |
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