|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Tensile, creep behavior and microstructure evolution of an as-cast Ni-based K417G polycrystalline superalloy显示文摘The Ni-based K417 G superalloy is extensively applied as aeroengine components for its low cost and good mid-temperature(600–900?C) properties. Since used in as-cast state, the comprehensive understanding on its mechanical properties and microstructure evolution is necessary. In the present research,the tensile, creep behavior and microstructure evolution of the as-cast K417 G superalloy under different conditions were investigated. The results exhibit that tensile cracks tend to initiate at MC carbide and γ/γ' eutectic structure and then propagate along grain boundary. As the temperature for tensile tests increases from 21?C to 700?C, the yield strength and ultimate tensile strength of K417 G superalloy decreases slightly, while the elongation to failure decreases greatly because of the intermediate temperature embrittlement. When the temperature rises to 900?C, the yield strength and ultimate tensile strength would decrease significantly. The creep deformation mechanism varies under different testing conditions. At 760?C/645 MPa, the creep cracks initiate at MC carbides and γ/γ' eutectic structures,and propagate transgranularly. While at 900?C/315 MPa and 950?C/235 MPa, the creep cracks initiate at grain boundary and propagate intergranularly. As the creep condition changes from 760?C/645 MPa to 900?C/315 MPa and 950?C/235 MPa, the ? phase starts to raft, which reduces the creep deformation resistance and increases the steady-state deformation rate. | Beining Du Ziyang Hu Liyuan Sheng Chuanyong Cui Jinxia Yang Yufeng Zheng Xiaofeng Sun | 2018 | Journal of Materials Science & Technology2018，34，10： | 4 |
| 2 | Optimization of Process Parameters for in High-Energy Ball Milling of CNTs/Al2024 Composites Through Response Surface Methodology显示文摘The mathematical models are developed to evaluate the ultimate tensile strength( UTS) and hardness of CNTs / Al2024 composites fabricated by high-energy ball milling. The effects of the preparation variables which are milling time,rotational speed,mass fraction of CNTs and ball to powder ratio on UST and hardness of CNTs / Al2024 composites are investigated. Based on the central composite design( CCD),a quadratic model is developed to correlate the fabrication variables to the UST and hardness. From the analysis of variance( ANOVA),the most influential factor on each experimental design response is identified. The optimum conditions for preparing CNTs / Al2024 composites are found as follows: 1. 53 h milling time,900 r / min rotational speed,mass fraction of CNTs 2. 87% and Ball to powder ratio 25 ∶ 1. The predicted maximum UST and hardness are 273.30 MPa and 261.36 HV,respectively. And the experimental values are 283.25 MPa and256.8 HV,respectively. It is indicated that the predicted UST and hardness after process optimization are found to agree satisfactory with the experimental values. | Li Guo Xiaolan Cai Lei Zhou Cui Hu Changjiang Yang Ziyang Wang Wenzhong Zhang Gang Peng | 2016 | Journal of Harbin Institute of Technology(New Series)2016，23，1： | 3 |
| 3 | Effect of extrusion process on the mechanical and in vitro degradation performance of a biomedical Mg-Zn-Y-Nd alloy显示文摘A new type of biomedical Mg-Zn-Y-Nd alloy was developed and thermal extruded by different processes to investigate the effect of extrusion ratio and extrusion pass on its microstructure,mechanical property and degradation performance.The results show that the increase of extrusion ratio could promote the dynamic recrystallization(DRX)process and led to the coarsening of DRXed grains.While the increase of extrusion pass also contributes to the DRX process but refines the DRXed grains.The simultaneous increasing of extrusion ratio and extrusion pass refines the secondary phases obviously.The increase of extrusion ratio has reduced the tensile strength but improved the elongation of the alloy significantly.However,the increase of extrusion pass could enhance the tensile strength and elongation simultaneously,especially the strength.The degradation performance has been optimized effectively through increasing the extrusion ratio and extrusion pass. | Beining Du Ziyang Hu Jiali Wang Liyuan Sheng Hui Zhao Yufeng Zheng Tingfei Xi | 2020 | Bioactive Materials2020，5，2： | 3 |
| 4 | A Novel Depression Rehabilitation Game Framework Using VR Based on Neurofeedback显示文摘At present,depression is treated with antidepressant drugs and assisted with psychotherapy and physical therapy,and these expensive and time-consuming treatment methods often end prematurely and result in a prolonged course w ithout effective symptom relief. Therefore,based on the neurofeedback therapy,a novel depression rehabilitation method using a Virtual-Reality(VR) game framew ork is proposed. In this VR game framew ork,an innovative threeelectrode Electroencephalography(EEG) collector is used to record patients' EEG data. The data are processed and converted into feedback features,and the feedback w ill be displayed to patients in real time through a VR headset. Patients can adjust their psychological activity based on the feedback,and relieve their physiological dysfunction effectively. The framew ork also provides a data storage module,w hich may offer therapists w ays to assess patients' rehabilitation results in a long term,as w ell as provide possibility to continue tow ards better algorithm of feedback features w ith data-mining.The prototype system is tested in the framew ork,and the experimental results prove the effectiveness of the framew ork in depression rehabilitation. | CAI Hanshu WANG Ziyang ZHANG Yanhao CHEN Yunfei HU Bin | 2018 | 计算机工程2018，44，10： | 2 |
| 5 | Epitaxial growth of hyperbranched Cu/Cu2O/CuO coreshell nanowire heterostructures for lithium-ion batteries显示文摘nano 建筑学的小心的设计和期望的活跃材料的聪明的杂交能导致更先进的性质。这里,我们设计了新奇层次分叉 Cu/Cu 2 由联合一个灵巧的热水的方法和随后的控制氧化过程的 O/CuO heteronanostructure。在分支和脊梁之间的好结构和取向附生的关系被高分辨率的传播电子显微镜学调查。而且,分支生长的进化也在 Cu nanowire 表面的渐渐的氧化期间被观察了。试验性的结果建议经由二拍子的圆舞暴露进程要表现到改变湿度以便完成的表面氧化需要优化了核心壳的形成结构化的分叉的建筑学。最后,象在锂离子电池的阳极材料的如此的一个层次框架的功能的 proof-of-concept 被表明。分叉的核心壳 heterostructure 由几个工具改进电池性能:取向附生地成年的分支提供的(i) 为到卷变化的提高的电解质可接近性和高抵抗的一个高表面区域由 Li+ 置闰 / 抽取导致了;(ii ) 有它的明确的异质接面的核心壳结构增加在 lithiation 期间便于有效费用运输的接触区域;(iii ) 铜核心象提供结构的加强一样充当一个当前的收集者。 | Yuxin Zhao Ying Zhang Hu Zhao Xuejin Li Yanpeng Li Ling wen Zifeng Yan Ziyang Huo | 2015 | Nano Research2015，8，8： | 2 |
| 6 | Zn-based metal organic framework derivative with uniform metal sites and hierarchical pores for efficient adsorption of formaldehyde显示文摘A Zn-containing graphite carbon(Zn-GC)with uniform Zn metal sites and hierarchical pore structure was obtained by pyrolysis of Zn-based metal organic framework(MOF).Zn-GC exhibited excellent adsorption capacity and reproducibility for formaldehyde.The adsorption capacity of Zn-GC was 736 times that of commercial activated carbon and 5.6 times that of ZSM-5 adsorbents.The characterization and experimental results showed that the surface chemical characteristics of the adsorption material play an important role in the adsorption performance.The superior performance was attributed to Zn metal sites and oxygen-containing functional groups on the MOF derivative as well as hierarchical pore structure.The material showed a great potential in the field of organic pollutant removal. | Junjie Yang Junxian Qin Ziyang Guo Yun Hu Xia Zhang | 2021 | Chinese Chemical Letters2021，32，5： | 2 |
| 7 | Extremely large-amplitude oscillation of soft pipes conveying fluid under gravity显示文摘In this work,the nonlinear behaviors of soft cantilevered pipes containing internal fluid flow are studied based on a geometrically exact model,with particular focus on the mechanism of large-amplitude oscillations of the pipe under gravity.Four key parameters,including the flow velocity,the mass ratio,the gravity parameter,and the inclination angle between the pipe length and the gravity direction,are considered to affect the static and dynamic behaviors of the soft pipe.The stability analyses show that,provided that the inclination angle is not equal to π,the soft pipe is stable at a low flow velocity and becomes unstable via flutter once the flow velocity is beyond a critical value.As the inclination angle is equal to π,the pipe experiences,in turn,buckling instability,regaining stability,and flutter instability with the increase in the flow velocity.Interestingly,the stability of the pipe can be either enhanced or weakened by varying the gravity parameter,mainly dependent on the value of the inclination angle.In the nonlinear dynamic analysis,it is demonstrated that the post-flutter amplitude of the soft pipe can be extremely large in the form of limit-cycle oscillations.Besides,the oscillating shapes for various inclination angles are provided to display interesting dynamical behaviors of the inclined soft pipe conveying fluid. | Wei CHEN Ziyang HU Huliang DAI Lin WANG | 2020 | Applied Mathematics and Mechanics(English Edition)2020，41，9： | 2 |
| 8 | Electrochemical Proton Storage:From Fundamental Understanding to Materials to Devices显示文摘Simultaneously improving the energy density and power density of electrochemical energy storage systems is the ultimate goal of electrochemical energy storage technology.An effective strategy to achieve this goal is to take advantage of the high capacity and rapid kinetics of electrochemical proton storage to break through the power limit of batteries and the energy limit of capacitors.This article aims to review the research progress on the physicochemical properties,electrochemical performance,and reaction mechanisms of electrode materials for electrochemical proton storage.According to the different charge storage mechanisms,the surface redox,intercalation,and conversion materials are classified and introduced in detail,where the influence of crystal water and other nanostructures on the migration kinetics of protons is clarified.Several reported advanced full cell devices are summarized to promote the commercialization of electrochemical proton storage.Finally,this review provides a framework for research directions of charge storage mechanism,basic principles of material structure design,construction strategies of full cell device,and goals of practical application for electrochemical proton storage. | Tiezhu Xu Di Wang Zhiwei Li Ziyang Chen Jinhui Zhang Tingsong Hu Xiaogang Zhang Laifa Shen | 2022 | Nano-Micro Letters2022，14，8： | 1 |
| 9 | Selective kernel networks for weakly supervised relation extraction显示文摘The purpose of relation extraction is to identify the semantic relations between entities in sentences that contain two entities.Recently,many variants of the convolution neural network(CNN)have been introduced to relation extraction for the extracting of features--the quality of the neural network model directly affects the final quality of relation extraction.However,the traditional convolution network uses a fixed convolution kernel,so it is difficult to choose the size of the convolution kernel dynamically,which results in networks with weak representation ability.To address this,a novel CNN is designed with selective kernel networks and multigranularity.In the process of feature extraction,the model can adaptively select the size of the convolution kernel,that is,give more weight to the appropriate convolution kernel.It is then combined with multigranularity convolution to obtain more abundant semantic information.Finally,a new pooling method is designed to obtain more comprehensive information and improve model performance.Experimental results indicate that this method is effective without excessively deep network layers,and it also outperforms several competitive baseline methods. | Ziyang Li Feng Hu Chilong Wang Weibin Deng Qinghua Zhang | 2021 | CAAI Transactions on Intelligence Technology2021，6，2： | 1 |
| 10 | Improved dielectric energy storage performance of Pb-free 0.5Na_(0.5)Bi_(0.5)TiO_(3)-0.5SrTiO_(3) ceramics modified with CaO显示文摘CaO doped 0.5Na_(0.5)Bi_(0.5)TiO_(3)-0.5SrTiO_(3)(ST)were prepared by a traditional solid-reaction method under various sintering temperatures.X-ray diffraction(XRD),electron scanning microscopy(SEM),and electrical measurements were employed to check the phases,microstructures,and energy storage properties.The doping of CaO can deeply affect the relaxation nature of NBT-ST ceramics.So the energy storage performance could be modified.Specially,sample with 1 at.%CaO exhibits a high energy storage density of 1.51 J/cm3.Any further details can be found within this study. | Peng Chen Leiyang Zhang Ziyang Wang Yifei Wang Chunlin Song Jinzhu Hu Gang Liu Yan Yan | 2018 | Journal of Advanced Dielectrics2018，8，6： | 0 |
| 11 | Non-small cell lung cancers(NSCLCs)oncolysis using coxsackievirus B5 and synergistic DNA-damage response inhibitors显示文摘With the continuous in-depth study of the interaction mechanism between viruses and hosts,the virus has become a promising tool in cancer treatment.In fact,many oncolytic viruses with selectivity and effectiveness have been used in cancer therapy.Human enterovirus is one of the most convenient sources to generate oncolytic viruses,however,the high seroprevalence of some enteroviruses limits its application which urges to exploit more oncolytic enteroviruses. | Bopei Cui Lifang Song Qian Wang Kelei Li Qian He Xing Wu Fan Gao Mingchen Liu Chaoqiang An Qiushuang Gao Chaoying Hu Xiaotian Hao Fangyu Dong Jiuyue Zhou Dong Liu Ziyang Song Xujia Yan Jialu Zhang Yu Bai Qunying Mao Xiaoming Yang Zhenglun Liang | 2023 | Signal Transduction and Targeted Therapy2023，8，10： | 0 |
| 12 | Self-assembled interlayer aiming at the stability of NiOx based perovskite solar cells显示文摘Inorganic NiO_(x) based inverted structure perovskite solar cells (PSCs) is reported to be more stable than that with the organic hole transport materials.In this work,NiO_(x)/MAPbI_(3) interface chemical reaction induced instability of perovskite is unveiled:Ni^(3+) and I^(-) exhibit redox reactions and deprotonation of MA^(+) happens,which result in interface defects and perovskite lattice deformation.Thus the defective interface accelerates the degradation of perovskite by defect pathways from the bottom interface to the perovskite surface contacting H_(2)O/O_(2).Self-assembled interlayer of NH_(2)^(-)end silane on NiO_(x)separates the reactive NiO_(x)and MAPbI_(3),tunes the interface energy states by–NH_(2) end group.As a result,the PSC based on the silane treated NiO_(x)achieves enhanced PCE of 20.1%with decent stability under environmental and extreme conditions (high temperature,high humidity,light infiltration).Our work highlights the interface chemical problem induced PSC instability and a simple interface modification to achieve the stable PSCs. | Tonghui Guo Zhi Fang Zequn Zhang Zhiqiang Deng Rui Zhao Jing Zhang Minghui Shang Xiaohui Liu Ziyang Hu Yuejin Zhu Liyuan Han | 2022 | Journal of Energy Chemistry2022，31，6： | 0 |
| 13 | Assembly Variation Identification of High Pressure Spool by Response Surface Based Model Updating Using IV-optimal Designs显示文摘This article, in order to improve the assembly of the high-pressure spool, presents an assembly variation identification method achieved by response surface method (RSM)-based model updating using IV-optimal designs. The method involves screening out non-relevant assembly parameters using IV-optimal designs and the preload of the joints is chosen as the input features and modal frequency is the only response feature. Emphasis is placed on the construction of response surface models including the interactions between the bolted joints by which the non-linear relationship between the assembly variation caused by the changes of preload and the output frequency variation is established. By achieving an optimal process of selected variables in the model, assembly variation can be identified. With a case study of the laboratory bolted disks as an example, the proposed method is verified and it gives enough accuracy in variation identification. It has been observed that the first-order response surface models considering the interactions between the bolted joints based on the IV-optimal criterion are adequate for assembly purposes. | ZHANG Ziyang XIE Shousheng HU Jinhai MIAO Zhuoguang WANG Lei | 2012 | Chinese Journal of Aeronautics2012，25，5： | 0 |
| 14 | Mouse intestinal Lgr5^+ stem cells are more sensitive to heavy ion irradiation than Bmi1^+ stem cells显示文摘Before the human exploration of the Mars or other long-duration missions in outer space,the risks of cancer and other radiation injury induced by space radiations,containing high linear energy transfer(LET)particles such as heavy ions,must be accurately estimated and mitigated.On the other hand,accelerated carbon ions have been successfully used for clinical tumor treatment,and their damages to normal tissues are also of concern.Therefore,heavy ion particles are severely risky not only to manned space exploration but also to the patients experiencing particle radiotherapy [1,2].Earlier studies suggested that intestine was a radio-sensitive tissue which was seriously injured,and then lost main digestion-absorption function for individual survival after low LET radiation such as γ-rays and X-rays.But there is much uncertainty in understanding heavy-ion-induced intestinal injury because sufficient in vivo mechanistic data are not available.Here,we demonstrate for the first time that the Bmi1-expressing cells are more resistant to carbon ions than Lgr5^+ cells in mouse intestine and may be the major stem cells for the self-renewal of intestinal cells after intestinal injury induced by carbon ion irradiation. | Anqing Wu Wentao Hu Jian Zhang Ziyang Guo Cuihua Liu Takanori Katsube Kaoru Tanaka Jing Nie Bing Wang Guangming Zhou | 2019 | Acta Biochimica et Biophysica Sinica2019，51，3： | 0 |
| 15 | The earlier,the better?A review of neoadjuvant immunotherapy in resectable non-small-cell lung cancer显示文摘Immune checkpoint inhibitors(ICIs)have revolutionized the approach to advanced and locally advanced non-small-cell lung cancer(NSCLC).Antibodies blocking inhibitory immune checkpoints,such as programmed death 1(PD-1)and its ligand(PD-L1),have remarkable antitumor efficacy and have been approved as a standard first-or second-line treatment in non-oncogene-addicted advanced NSCLC.The successful application of immunotherapy in advanced lung cancer has motivated researchers to further evaluate its clinical role as a neoadjuvant setting for resectable NSCLC and for improved long-term overall survival and curative rates.In this review,we discuss the efforts that incorporate ICIs into the treatment paradigm for surgically resectable lung cancer.We reviewed the early-phase results from neoadjuvant clinical trials,the landscape of the majority of ongoing phase III trials,and discuss the prospects of ICIs as a curative therapy for resectable lung cancer.We also summarized the potential biomarkers and beneficiaries involved in the current study,as well as the remaining unresolved challenges for neoadjuvant immunotherapy. | Fajiu Li Ying Chen Juanjuan Wu Chenghong Li Shi Chen Ziyang Zhu Wei Qin Min Liu Bingzhu Hu Shuang Liu Wenzhao Zhong | 2022 | Chronic Diseases and Translational Medicine2022，8，2： | 0 |
| 16 | Gadolinium-containing semiconducting polymer nanoparticles for magnetic resonance/fluorescence dual-modal imaging and photothermal therapy of oral squamous cell carcinoma显示文摘Oral squamous cell carcinoma(OSCC)is the most common malignant tumor of the oral and maxillofacial region.Due to its unique location,earlier and more accurate diagnosis and more minimally invasive treatment of OSCC is of major importance.Herein,gadolinium-containing semiconductor polymer nanoparticles(SPN-Gd)were designed and prepared.The nanoparticles consist of a near-infrared(NIR)absorption semiconductor polymer(PCPDTBT)served as fluorescence signal source and a photothermal conversion agent(PTA)and a gadolinium-grafted triblock amphiphilic copolymer(F127-DTPA-Gd)served as a magnetic resonance imaging(MRI)contrast agent and nanocarrier.The experiments in vivo showed that SPN-Gd could act as an MRI contrast agent and optical image agent with a long retention time,and it had a significant inhibiting effect on tumors of OSCC mice model through photothermal therapy(PTT).Thus our study provides a simple nanotheranostic platform composed of two components for efficient MR/fluorescence dual-modal imaging-guided PTT. | Xiao Pan Antian Gao Yanni Hu Ziyang Hu Chen Xie Zitong Lin | 2023 | Nano Research2023，16，2： | 0 |
| 17 | Xixiang Biota——Another Rare Scientific Window of the Cambrian Explosion显示文摘Objective The Xixiang biota is a specially preserved micro oryctocoenose discovered in the Lower Cambrian Kuanchuanpu member of Dengying Formation at Zhangjiagou section of Xixiang County in southern Shaanxi Province.The Kuanchuanpu member is a set of neritic carbonate sedimentary formation containing phosphorus and silicon.Its lithology is mainly | LIU Yunhuan WANG Qi SHAO Tiequan DONG Junyan TANG Hanhua ZHANG Yanan JIANG Kaituo HU Bo WANG Zhaojing PANG Guotao MA Yingying FAN Ziyang | 2016 | Acta Geologica Sinica(English Edition)2016，90，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员