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| 1 | Novel MOF shell-derived surface modification of Li-rich layered oxide cathode for enhanced lithium storage显示文摘Li-rich layered oxide materials have attracted increasing attention because of their high specific capacity(>250 mAh g^(-1)). However, these materials typically suffer from poor cycling stability and low rate performance. Herein, we propose a facile and novel metal-organic-framework(MOF) shell-derived surface modification strategy to construct NiCo nanodots decorated(~5 nm in diameter) carbon-confined Li_(1.2)Mn_(0.54) Ni_(0.13)Co_(0.13)O_2 nanoparticles(LLO@C&NiCo). The MOF shell is firstly formed on the surface of as-prepared Li_(1.2)Mn_(0.54)Ni_(0.13)Co_(0.13)O_2 nanoparticles via low-pressure vapor superassembly and then is in situ converted to the NiCo nanodots decorated carbon shell after subsequent controlled pyrolysis.The obtained LLO@C&NiCo cathode exhibits enhanced cycling and rate capability with a capacity retention of 95% after 100 cycles at 0.4 C and a high capacity of 159 mAh g^(-1) at 5 C, respectively, compared with those of LLO(75% and 105 mAh g^(-1)). The electrochemical impedance spectroscopy and selected area electron diffraction analyses after cycling demonstrate that the thin C&NiCo shell can endow LLO with high electronic conductivity and structural stability, indicating the undesired formation of the spinel phase initiated from the particle surface is efficiently suppressed. Therefore, this presented strategy may open a new avenue on the design of high-performance electrode materials for energy storage. | Zhitong Xiao Jiashen Meng Qi Li Xuanpeng Wang Meng Huang Ziang Liu Chunhua Han Liqiang Mai | 2018 | Science Bulletin2018，63，1： | 8 |
| 2 | On-machine Precision Preparation and Dressing of Ball-headed Diamond Wheel for the Grinding of Fused Silica显示文摘In the grinding of high quality fused silica parts with complex surface or structure using ball-headed metal bonded diamond wheel with small diameter,the existing dressing methods are not suitable to dress the ball-headed diamond wheel precisely due to that they are either on-line in process dressing which may causes collision problem or without consideration for the effects of the tool setting error and electrode wear.An on-machine precision preparation and dressing method is proposed for ball-headed diamond wheel based on electrical discharge machining.By using this method the cylindrical diamond wheel with small diameter is manufactured to hemispherical-headed form.The obtained ball-headed diamond wheel is dressed after several grinding passes to recover geometrical accuracy and sharpness which is lost due to the wheel wear.A tool setting method based on high precision optical system is presented to reduce the wheel center setting error and dimension error.The effect of electrode tool wear is investigated by electrical dressing experiments,and the electrode tool wear compensation model is established based on the experimental results which show that the value of wear ratio coefficient K' tends to be constant with the increasing of the feed length of electrode and the mean value of K' is 0.156.Grinding experiments of fused silica are carried out on a test bench to evaluate the performance of the preparation and dressing method.The experimental results show that the surface roughness of the finished workpiece is 0.03 μm.The effect of the grinding parameter and dressing frequency on the surface roughness is investigated based on the measurement results of the surface roughness.This research provides an on-machine preparation and dressing method for ball-headed metal bonded diamond wheel used in the grinding of fused silica,which provides a solution to the tool setting method and the effect of electrode tool wear. | CHEN Mingjun LI Ziang YU Bo PENG Hui FANG Zhen | 2013 | Chinese Journal of Mechanical Engineering2013，26，5： | 5 |
| 3 | Promotional effect for SCR of NO with CO over MnO_(x)-doped Fe_(3)O_(4) nanoparticles derived from metal-organic frameworks显示文摘MnO_(x)-Fe_(3)O_(4) nanomaterials were fabricated by using the innovative scheme of pyrolyzing manganesedoped iron-based metal organic framework in inert atmosphere and exhibited extraordinary performance of NO reduction by CO(CO-SCR).Multi-technology characterizations were conducted to ascertain the properties of fabricated materials(e.g.,TGA,XRD,SEM,FT-IR,XPS,BET,H_(2)-TPR and O_(2)-TPD).Moreover,the interaction between reactants and catalysts was ascertained by in situ FT-IR.Experimental results demonstrated that Mn was an ideal promoter for iron oxides,resulting in decrease of crystallite size,improve reducibility property,enhance the mobility and the amount of lattice O^(2-) species,as well as strength the adsorption ability of active NO and CO to form multiple species(e.g.,nitrate and carbonate).The unprecedented enhancement of CO-SCR activity over Mn-Fe nanomaterials follows the Eley-Rideal(E-R)and Langmuir-Hinshelwood(L-H)reaction pathway. | Yu Zhang Ling Zhao Ziang Chen Xinyong Li | 2022 | Chinese Journal of Chemical Engineering2022，35，6： | 4 |
| 4 | Predicting and controlling interfacial microstructure of magnesium/aluminum bimetallic structures for improved interfacial bonding显示文摘In this study,an overcasting process followed by a low-temperature(200°C)annealing schedule has been developed to bond magnesium to aluminum alloys.ProCAST software was used to optimize the process parameters during the overcasting process which lead to Mg/Al bimetallic structures to be successfully produced without formation of Mg-Al intermetallic phases.Detailed microstructure evolution during annealing,including the formation and growth of Al-Mg interdiffusion layer and intermetallic phases(Al12Mg17 and Al3Mg2),was experimentally observed for the first time with direct evidence,and predicted using Calculation of Phase Diagrams(CALPHAD)modeling.Maximum interfacial strength was achieved when the interdiffusion layer formed at the Mg/Al interface reached a maximum thickness the without formation of brittle intermetallic compounds.The precise diffusion modeling of the Mg/Al interface provides an efficient way to optimize and control the interfacial microstructure of Mg/Al bimetallic structures for improved interfacial bonding. | Ziang Zhu Renhai Shi Andrew D.Klarner Alan A.Luo Yiqing Chen | 2020 | Journal of Magnesium and Alloys2020，8，3： | 4 |
| 5 | Prophet model and Gaussian process regressionbased user traffic prediction in wireless networks显示文摘User traffic prediction is an important topic for wireless network operators.A user traffic prediction method based on Prophet and Gaussian process regression is proposed in this paper.The proposed method first employs discrete wavelet transform to decompose the user traffic time series to high-frequency component and low-frequency component.The low-frequency component bears the long-range dependence of user network traffic,while the high-frequency component reveals the gusty and irregular fluctuations of user network traffic.Then Prophet model and Gaussian process regression are applied to predict the two components respectively based on the characteristics of the two components.Experimental results demonstrate that the proposed model outperforms the existing time series prediction method. | Yu LI Ziang MA Zhiwen PAN Nan LIU Xiaohu YOU | 2020 | Science China(Information Sciences)2020，63，4： | 4 |
| 6 | Novel hollow Ni0.33Co0.67Se nanoprisms for high capacity lithium storage显示文摘In this work,homogeneous Ni0.33Co0.67Se hollow nanoprisms were synthesized successfully in virtue of Kirkendall effect.It is the first time for bimetallic Ni-Co compounds Ni0.33Co0.67Se to be used in lithium-ion batteries (LIBs).Impressively,the Ni0.33Co0.67Se hollow nanoprisms show superior specific capacity (1,575 mAh/g at the current density of 100 mA/g) and outstanding rate performance (850 mAh/g at 2,000 mA/g) as anode material for LIBs.This work proves the potential of bimetallic chalcogenide compounds as high performance anode materials for LIBs. | Shaohua Zhu Cheng Chen Pan He Shuangshuang Tan Fangyu Xiong Ziang Liu Zhuo Peng Qinyou An Liqiang Mai | 2019 | Nano Research2019，12，6： | 3 |
| 7 | Environment-friendly surface cleaning using micro-nano bubbles显示文摘Cleaning a surface using a solution containing a large number of micro to nano scale bubbles has significant advantage regarding environmental protection.This review first briefly introduces the cleaning mechanism of micro-nano bubbles(MNBs),including physical and chemical effects.Then the applications of MNBs in cleaning of metal parts,precision parts,cultural relics or food are introduced.After that,coupled cleaning method of ultrasound and bubbles is introduced.Finally,the characterization methods for the cleaning effect are introduced,which mainly focuses on the changes of physico-chemical properties(mass or cleaning area,infiltration,colony number and light scattering intensity)of the cleaned parts or that(like conductivity)of the solvent.It is believed that MNBs technology will be applied in a broader range of surface cleaning applications. | Nuo Jin Fenghua Zhang Yan Cui Le Sun Haoxiang Gao Ziang Pu Weimin Yang | 2022 | Particuology2022，20，7： | 2 |
| 8 | Interface-modulated approach toward multilevel metal oxide nanotubes for lithium-ion batteries and oxygen reduction reaction显示文摘有 multilevel 内部的空结构具有为象催化作用,察觉到的化学药品,药交货,和精力存储那样的潜在的应用的大兴趣的金属氧化物。然而, multilevel nanotubes 的控制合成仍然是大挑战。这里,我们通过控制的热处理跟随的 electrospinning 与悦耳的内部结构向复杂金属氧化物 multilevel nanotubes 的合成开发一条灵巧的调制接口的途径。这万用的策略能有效地被使用制作 wire-in-tube 和各种各样的金属氧化物的 tube-in-tube nanotubes。这些 multilevel nanotubes 拥有一个大特定的表面区域,快集体运输,好紧张住所,和高收拾行李密度,它为锂离子电池(解放) 和氧减小反应(ORR ) 是有益的。明确地,可缩小的 CoMn 2 O 4 tube-in-tube nanotubes 作为锂离子电池阳极交付 ~ 的一个高分泌物能力在二组商业烈酒之间的 565 mAhon。电子鼻子基于快 GC 提供有效、快速的芳香侧面比较的可能性(分析的全部的时间是 93 ? s ) 选择白酒。另外,鉴定并且试验这些饮料用的不稳定的部分的选择混合物的数量的 semiqualitative 比较在不到 60 的病人 HS-SPME/GCantly 更长 ? 年在 60 年与那些相比变老(33.8? | Jiashen Meng Chaojiang Niu Xiong Liu Ziang Liu Hongliang Chen Xuanpeng Wang Jiantao Li Wei Chen Xuefeng Guo Liqiang Mai | 2016 | Nano Research2016，9，8： | 2 |
| 9 | Coherent Streamline Generation for 2-D Vector Fields显示文摘Visualizing 2-D vector fields using streamlines is one popular ?ow visualization technique.Standard streamline generation algorithms compute the density of streamlines across the domain,detect features,and employ customized rules to emphasize features.In this process,feature characterization and visual clarity are heavily considered.Simultaneously preserving the temporal coherence for time-varying vector fields,however,remains a challenge.In this paper,we present a coherent and feature-aware streamline generation algorithm by employing a feature-guided streamline seeding technique and a coherent streamline placing scheme.For each frame,a feature map is first computed with critical points or the Finite-Time Lyapunov Exponent(FTLE) approach,and is used to initialize a set of seeds by leveraging the Poisson Disk distribution.These seeds are further optimized by using a deformation-driven moving mesh method.To preserve the temporal coherence,the streamlines generated from the seeds are individually checked subject to their correspondences to the ones in the previous frame.Subsequently,additional streamlines are sequentially inserted in low-density regions.We demonstrate our algorithm on both Computation Fluid Dynamics(CFD) and non-CFD datasets,and compare it with the recent literature. | Ziang Ding Xin Zhang Wei Chen Xavier Tricoche Dichao Peng Qunsheng Peng | 2012 | Tsinghua Science and Technology2012，17，4： | 2 |
| 10 | Engineering of dendritic dopant-free hole transport molecules:enabling ultrahigh fill factor in perovskite solar cells with optimized dendron construction显示文摘Developing dopant-free hole-transporting materials(HTMs)for high-performance perovskite solar cells(PVSCs)has been a very active research topic in recent years since HTMs play a critical role in optimizing interfacial charge carrier kinetics and in turn determining device performance.Here,a novel dendritic engineering strategy is first utilized to design HTMs with a D-A type molecular framework,and diphenylamine and/or carbazole is selected as the building block for constructing dendrons.All HTMs show good thermal stability and excellent film morphology,and the key optoelectronic properties could be fine-tuned by varying the dendron structure.Among them,MPA-Cz-BTI and MCz-Cz-BTI exhibit an improved interfacial contact with the perovskite active layer,and non-radiative recombination loss and charge transport loss can be effectively suppressed.Consequently,high power conversion efficiencies(PCEs)of 20.8%and 21.35%are achieved for MPA-Cz-BTI and MCz-Cz-BTI based devices,respectively,accompanied by excellent long-term storage stability.More encouragingly,ultrahigh fill factors of 85.2%and 83.5%are recorded for both devices,which are among the highest values reported to date.This work demonstrates the great potential of dendritic materials as a new type of dopant-free HTMs for high-performance PVSCs with excellent FF. | Wei Chen Yang Wang Bin Liu Yajun Gao Ziang Wu Yongqiang Shi Yumin Tang Kun Yang Yujie Zhang Weipeng Sun Xiyuan Feng Frédéric Laquai Han Young Woo Aleksandra B.Djurisic Xugang Guo Zhubing He | 2021 | Science China Chemistry2021，64，1： | 2 |
| 11 | Injectable self-healing hydrogel with siRNA delivery property for sustained STING silencing and enhanced therapy of intervertebral disc degeneration显示文摘Inflammatory responses of nucleus pulposus(NP)can induce imbalanced anabolism and catabolism of extracellular matrix,and the cytosolic dsDNA accumulation and STING-NF-κB pathway activation found in NP inflammation are considered as fairly important cause of intervertebral disc(IVD)degeneration.Herein,we constructed a siSTING delivery hydrogel of aldehyde hyaluronic acid(HA-CHO)and poly(amidoamine)PAMAM/siRNA complex to intervene the abnormal STING signal for IVD degeneration treatment,where the formation of dynamic Schiff base bonds in the system(siSTING@HPgel)was able to overcome the shortcomings such as low cellular uptake,short half-life,and rapid degradation of siRNA-based strategy.PAMAM not only formed complexes with siRNA to promote siRNA transfection,but also served as dynamic crosslinker to construct hydrogel,and the injectable and self-healing hydrogel efficiently and steadily silenced STING expression in NP cells.Finally,the siSTING@HPgel significantly eased IVD inflammation and slowed IVD degeneration by prolonging STING knockdown in puncture-induced IVD degeneration rat model,revealing that STING pathway was a therapeutic target for IVD degeneration and such novel hydrogel had great potential for being applied to many other diseases for gene delivery. | Jiaxin Chen Haifeng Zhu Yutao Zhu Chenchen Zhao Shengyu Wang Yixin Zheng Ziang Xie Yang Jin Honghai Song Linjun Yang Jin Zhang Jiayong Dai Zhijun Hu Huaiyu Wang | 2022 | Bioactive Materials2022，7，3： | 2 |
| 12 | Dry-regulated hydrogels with anisotropic mechanical performance and ionic conductivity显示文摘Nature consists of various soft tissues with well-ordered hierarchical anisotropic structures, which play essential roles in biological systems to exhibit particular functions. Mimicking bio-tissues, synthetic hydrogels with anisotropic structures have received considerable attention in recent years. However, existing approaches to fabricate anisotropic hydrogels often require complicated procedures, which are timeconsuming and labor-demanding. Inspired by the dry-induced crystallization phenomenon, we report a simple yet effective prestretching-drying-swelling method to afford anisotropic crystalline polyvinyl alcohol hydrogels. Owing to the distinct anisotropic microstructure, the hydrogels demonstrate excellent mechanical properties with noticeable directional distinction. It is revealed that both the enhancing of pre-orientation strain and the extending of heating time make the hydrogels with better mechanical properties and more remarkable anisotropicity. Owing to the anisotropically aligned structure, the hydrogels exhibit remarkably differential ionic conductivity: the difference between the parallel and vertical conductivity of the same sample can reach as high as 6.6 times, making the materials possible candidates as nano-conductive materials. We anticipate that this simple yet effective approach may become highly useful for fabricating oriented hydrogels and endow the materials with more promising application prospects in the future. | Ping Li Yi Liu Ziang Wang Xuemei Xiao Guozhe Meng Xiaolin Wang Hong-Lei Guo Hui Guo | 2022 | Chinese Chemical Letters2022，33，2： | 2 |
| 13 | Ammonium Ion and Structural Water Co-Assisted Zn^(2+) Intercalation/De-Intercalation in NH_(4)V_(4)O_(10)∙0.28H_(2)O显示文摘Main observation and conclusion The cathode material plays a crucial role in the performances of aqueous zinc-ion batteries(ZIBs).Herein,we report an ammonium vanadate(NH_(4)V_(4)O_(10)∙0.28H_(2)O,NHVO)aqueous ZIB cathode material.The obtained NHVO microflowers manifest high discharge capacity(410 mA·h∙g^(-1) at 0.2 A∙g^(-1)). | Ting Zhu Bo Mai Ping Hu Ziang Liu Congcong Cai Xuanpeng Wang Liang Zhou | 2021 | Chinese Journal of Chemistry2021，39，7： | 2 |
| 14 | A Review of Fibre Reinforced Polymer (FRP) Reinforced Concrete Composite Column Members Modelling and Analysis Techniques显示文摘The use of fibre-reinforced polymer(FRP)to confine concrete columns improves the strength and ductility of the columns by reducing passive lateral confinement pressure.Many numerical and analytical formulations have been proposed in the literature to describe the compressive behaviour of FRP confined concrete under both monotonic and cyclic loads.However,the efect of a stress/strain level in the columns has not been well defined because of the lack of well-defined strategies of modeing and oversimplification of the model.This paper reviews the existing FRP combinations and the available numerical and analytical methods to determine the effectiveness of the adopted method.An effort has been made to examine the usage of FRP materials in column applications in exist-ing building regimes and highlights the possible future scopes to improve the use of FRP confined concrete in civil applications. | Mahdi Hosseini Bingyu Jian Haitao Li Dong Yang Ziang Wang Zixian Feng Feng Shen Jian Zhang Rodolfo Lorenzo Ileana Corbi Ottavia Corbi | 2022 | Journal of Renewable Materials2022，10，12： | 1 |
| 15 | Anti-angiogenicactivities of chitooligosaccharides显示文摘 | Haige W Ziang Y Xuefang B | 2008 | Carbohydr Polym2008，73，： | 1 |
| 16 | Data mining for unemployment rate prediction using search engine query data显示文摘 | Wei Xu Ziang Li Cheng Cheng Tingting Zheng | 2013 | Service Oriented Computing and Applications2013，，1： | 1 |
| 17 | Electrodeposited Ag nanoparticles on TiO 2 nanorods for enhanced UV visible light photoreduction CO 2 to CH 4显示文摘 | Dan Kong Jeannie Ziang Yie Tan Fei Yang Jieliang Zeng Xiwen Zhang | 2013 | Applied Surface Science2013，，： | 1 |
| 18 | Test factors affecting the performance of zinc–air battery显示文摘Zinc-air batteries provide a great potential for future large-scale energy storage.We assess the test factors that mainly affect the measured power density of the zinc-air battery.By fitting the polarization curves of the zinc-air batteries,we reveal the effect of testing parameters(electrode distance,electrolyte concentration,and oxygen flux)and preparation of catalysts ink on the activation,ohm,and concentration polarizations of the zinc-air battery.Finally,recommendations on evaluating the potentials of non-noblemetal electrocatalysts for applications in zinc-air batteries were given. | Dian Jiao Ziang Ma Jisi Li Yajing Han Jing Mao Tao Ling Shizhang Qiao | 2020 | Journal of Energy Chemistry2020，29，5： | 1 |
| 19 | Efficient Semi‑Transparent Wide‑Bandgap Perovskite Solar Cells Enabled by Pure‑Chloride 2D‑Perovskite Passivation显示文摘Wide-bandgap(WBG)perovskite solar cells suffer from severe non-radiative recombination and exhibit relatively large opencircuit voltage(V_(OC))deficits,limiting their photovoltaic performance.Here,we address these issues by in-situ forming a well-defined 2D perovskite(PMA)_(2)PbCl_(4)(phenmethylammonium is referred to as PMA)passivation layer on top of the WBG active layer.The 2D layer with highly pure dimensionality and halide components is realized by intentionally tailoring the side-chain substituent at the aryl ring of the post-treatment reagent.First-principle calculation and single-crystal X-ray diffraction results reveal that weak intermolecular interactions between bulky PMA cations and relatively low cation-halide hydrogen bonding strength are crucial in forming the well-defined 2D phase.The(PMA)_(2)PbCl_(4)forms improved type-I energy level alignment with the WBG perovskite,reducing the electron recombination at the perovskite/hole-transport-layer interface.Applying this strategy in fabricating semi-transparent WBG perovskite solar cells(indium tin oxide as the back electrode),the V_(OC)deficits can be reduced to 0.49 V,comparable with the reported state-of-the-art WBG perovskite solar cells using metal electrodes.Consequently,we obtain hysteresis-free 18.60%-efficient WBG perovskite solar cells with a high V_(OC)of 1.23 V. | Liu Yang Yongbin Jin Zheng Fang Jinyan Zhang Ziang Nan Lingfang Zheng Huihu Zhuang Qinghua Zeng Kaikai Liu Bingru Deng Huiping Feng Yujie Luo Chengbo Tian Changcai Cui Liqiang Xie Xipeng Xu Zhanhua Wei | 2023 | Nano-Micro Letters2023，15，8： | 1 |
| 20 | Control parallel double inverted pendulum by hierarchical reinforcement learning显示文摘 | Zheng Yu Luo Siwei Lv Ziang | 2004 | Signal Processing2004，2，： | 1 |
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