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| 1 | De Novo Design of Polymeric Carrier to Photothermally Release Singlet Oxygen for Hypoxic Tumor Treatment显示文摘Intratumoral hypoxia extremely limits the clinic applications of photodynamic therapy(PDT).Endoperoxides allow thermally releasing singlet oxygen(1O_(2))in a defned quantity and ofer promising opportunities for oxygen-independent PDT treatment of hypoxic tumors.However,previous composite systems by combining endoperoxides with photothermal reagents may result in unpredicted side efects and potential harmful impacts during therapy in vivo.Herein,we de novo design an all-in-one polymer carrier,which can photothermally release 1O_(2).Te strategy has been demonstrated to efectively enhance the production of 1O_(2) and realize the photodamage in vitro,especially in hypoxic environment.Additionally,the polymer carrier accumulates into tumor afer intravenous injection via the enhanced permeation and retention efects and accelerates the oxygen-independent generation of 1O_(2) in tumors.Te oxidative damage results in good inhibitory efect on tumor growth.Realization of the strategy in vivo paves a new way to construct photothermal-triggered oxygen-independent therapeutic platform for clinical applications. | Tianci Huang Menglong Zhao Qi Yu Zheng Feng Mingjuan Xie Shujuan Liu Kenneth Yin Zhang Qiang Zhao Wei Huang | 2019 | Research2019，，1： | 6 |
| 2 | Short-term biochar effect on soil physicochemical and microbiological properties of a degraded alpine grassland显示文摘Soil remediation is an important part of the restoration process of degraded terrestrial ecosystems.Due to its unique properties,biochar is being used widely as an effective soil modifier in agricultural systems,but research is still rare on biochar application in grassland ecosystems,especially in degraded alpine grasslands.In this study,we conducted a plot experiment to investigate the effect of biochar application on soil physicochemical properties and microorganisms at the 0–20 cm soil depth of a degraded alpine grassland in Qinghai-Tibet Plateau,China.The experiment consisted of four corn straw biochar application levels(0%,0.5%,1%and 2%,with the percentage representing the ratio of biochar weight to the dry weight of soil in the surface 20 cm soil layer).When the biochar addition increased from 0%to 2%,total nitrogen,total organic carbon and available phosphorus in the 0–10 cm soil layer increased by 41%,55%and 45%,respectively,in the second year after biochar addition.Meanwhile,soil electrical conductivity decreased,and soil water content increased.Total microbial,fungal and bacterial biomasses in the 0–10 cm soil layer increased from 9.15 to 12.68,0.91 to 1.34,and 3.85 to 4.55μg g^(-1),respectively.The relative biomasses of saprophytic fungi and methanotrophic bacteria decreased,while the relative biomasses of ectomycorrhizal fungi and arbuscular mycorrhizal fungi increased.These results indicate that biochar has a great potential in improving microbial activity and soil fertility in soil remediation of the degraded alpine grassland. | Jinsheng LI Xinqing SHAO Ding HUANG Kesi LIU Jianying SHANG Qian ZHANG Tianci ZHAO Xiaomeng YANG | 2022 | Pedosphere2022，32，3： | 3 |
| 3 | Electrolyte-mediated dense integration of graphene-MXene films for high volumetric capacitance flexible supercapacitors显示文摘High conductivity two-dimensional(2D)materials have been proved to be potential electrode materials for flexible supercapacitors because of its outstanding chemical and physical properties.However,electrodes based on 2D materials always suffer from limited electrolyte-accessible surface due to the restacking of the 2D sheets,hindering the full utilization of their surface area.In this regard,an electrolyte-mediated method is used to integrate dense structure reduced graphene oxide/MXene(RGM)-electrolyte composite films.In such composite films,reduced graphene oxide(RGO)and MXene sheets are controllable assembly in compact layered structure with electrolyte filled between the layers.The electrolyte layer between RGO and MXene sheets forms continuous ion transport channels in the composite films.Therefore,the RGM-electrolyte composite films can be used directly as self-supporting electrodes for supercapacitors without additional conductive agents and binders.As a result,the composite films demonstrate enhanced volumetric specific capacity,improved volumetric energy density and higher power density compared with both pure RGO electrode and porous composite electrode prepared by traditional methods.Specifically,when the mass ratio of MXene is 30%,the electrode delivers a volumetric specific capacity of 454.9 F·cm^(−3) with a high energy density of 39.4 Wh·L^(−1).More importantly,supercapacitors based on the composite films exhibit good flexibility electrochemical performance.The investigation provides a new approach to synthesize dense structure films based on 2D materials for application in high volumetric capacitance flexible supercapacitors. | Min Zhang Jun Cao Yi Wang Jia Song Tianci Jiang Yanyu Zhang Weimeng Si Xiaowei Li Bo Meng Guangwu Wen | 2021 | Nano Research2021，14，3： | 2 |
| 4 | Dynamic glial response and crosstalk in demyelination-remyelination and neurodegeneration processes显示文摘Multiple sclerosis is an autoimmune disease in which the immune system attacks the myelin sheath in the central nervous system.It is characterized by blood-brain barrier dysfunction throughout the course of multiple sclerosis, followed by the entry of immune cells and activation of local microglia and astrocytes.Glial cells(microglia, astrocytes, and oligodendrocyte lineage cells) are known as the important mediators of neuroinflammation, all of which play major roles in the pathogenesis of multiple sclerosis.Network communications between glial cells affect the activities of oligodendrocyte lineage cells and influence the demyelination-remyelination process.A finely balanced glial response may create a favorable lesion environment for efficient remyelination and neuroregeneration.This review focuses on glial response and neurodegeneration based on the findings from multiple sclerosis and major rodent demyelination models.In particular, glial interaction and molecular crosstalk are discussed to provide insights into the potential cell-and molecule-specific therapeutic targets to improve remyelination and neuroregeneration. | Tianci Chu Lisa B.E.Shields Wenxin Zeng Yi Ping Zhang Yuanyi Wang Gregory N.Barnes Christopher B.Shields Jun Cai | 2021 | Neural Regeneration Research2021，16，7： | 2 |
| 5 | A joint call for actions to advance taxonomy in China显示文摘Taxonomy plays an important role in understanding the origin, evolution, and ecological functionality of biodiversity. There are large number of unknown species yet to be described by taxonomists, which together with their ecosystem services cannot be effectively protected prior to description. Despite this, taxonomy has been increasingly underrated insufficient funds and permanent positions to retain young talents. Further, the impact factordriven evaluation systems in China exacerbate this downward trend, so alternative evaluation metrics are urgently necessary. When the current generation of outstanding taxonomists retires,there will be too few remaining taxonomists left to train the next generation. In light of these challenges, all co-authors worked together on this paper to analyze the current situation of taxonomy and put out a joint call for immediate actions to advance taxonomy in China. | Chaodong Zhu Arong Luo Ming Bai Michael COrr Zhonge Hou Siqin Ge Jun Chen Yibo Hu Xuming Zhou Gexia Qiao Hongzhi Kong Limin Lu Xiaohua Jin Lei Cai Xinli Wei Ruilin Zhao Wei Miao Qingfeng Wang Zhongli Sha Qiang Lin Meng Qu Jianping Jiang Jiatang Li Jing Che Xuelong Jiang Xiaoyong Chen Lianming Gao Zongxin Ren Chunlei Xiang Shixiao Luo Donghui Wu Dong Liu Yanqiong Peng Tao Su Chenyang Cai Tianqi Zhu Wanzhi Cai Xingyue Liu Hu Li Huaijun Xue Zhen Ye Xuexin Chen Pu Tang Shujun Wei Hong Pang Qiang Xie Feng Zhang Feng Zhang Xianjin Peng Aibing Zhang Taiping Gao Changfa Zhou Chen Shao Libin Ma Zhaoming Wei Yunxia Luan Ziwei Yin Wu Dai Cong Wei Xiaolei Huang Jingxian Liu Xiangsheng Chen Tianci Yi Zhisheng Zhang Zhulidezi Aishan Qin Li Hongying Hu | 2022 | Zoological Systematics2022，47，3： | 1 |
| 6 | Fe3O4 nanoparticle-enabled mode-locking in an erbiumdoped fiber laser显示文摘In this paper,we have proposed and demonstrated the generation of passively mode-locked pulses and dissipative soliton resonance in an erbium-doped fiber laser based on Fe3O4 nanoparticles as saturable absorbers.We obtained self-starting mode-locked pulses with fundamental repetition frequency of 7.69 MHz and center wavelength of 1561 nm.The output of a pulsed laser has spectral width of 0.69 nm and pulse duration of 14 ns with rectangular pulse profile at the pump power of 190 mW.As far as we know,this is the first time that Fe3O4 nanoparticles have been developed as low-dimensional materials for passive mode-locking with rectangular pulse.Our experiments have confirmed that Fe3O4 has a wide prospect as a nonlinear photonics device for ultrafast fiber laser applications. | Xiaohui LI Jiajun PENG Ruisheng LIU Jishu LIU Tianci FENG Abdul Qyyum Cunxiao GAO Mingyuan XUE Jian ZHANG | 2020 | Frontiers of Optoelectronics2020，13，2： | 1 |
| 7 | MdWRKY11 improves copper tolerance by directly promoting the expression of the copper transporter gene MdHMA5显示文摘Overuse of fungicides and fertilizers has resulted in copper(Cu)contamination of soils and toxic levels of Cu in apple fruits.To breed Cu-resistant apple(Malus domestica)cultivars,the underlying molecular mechanisms and key genes involved in Cu resistance must be identified.Here,we show that MdWRKY11 increases Cu tolerance by directly promoting the transcription of MdHMA5.MdHMA5 is a Cu transporter that may function in the storage of excess Cu in root cell walls and stems for Cu tolerance in apple.The transcription factor MdWRKY11 is highly induced by excess Cu.MdWRKY11 overexpression in transgenic apple enhanced Cu tolerance and decreased Cu accumulation.Apple calli transformed with an MdWRKY11-RNAi construct exhibited the opposite phenotype.Both an in vivo chromatin immunoprecipitation assay and an in vitro electrophoretic mobility shift assay indicated that MdWRKY11 binds to the promoter of MdHMA5.Furthermore,MdWRKY11 promoted MdHMA5 expression in transgenic apple plants,as revealed by quantitative PCR.Moreover,inhibition of MdWRKY11 expression by RNA interference led to a significant decrease in MdHMA5 transcription.Thus,MdWRKY11 directly regulates MdHMA5 transcription.Our work resulted in the identification of a novel MdWRKY11-MdHMA5 pathway that mediates Cu resistance in apple. | Kun Shi Xuan Liu Yunpeng Zhu Yixue Bai Dongqian Shan Xiaodong Zheng Lin Wang Haixia Zhang Chanyu Wang Tianci Yan Fangfang Zhou Zehui Hu Yanzhao Sun Yan Guo Jin Kong | 2020 | Horticulture Research2020，7，1： | 1 |
| 8 | Monitoring the morphology evolution of LiNi_(0.8)Mn_(0.1)Co_(0.1)O_(2)during high-temperature solid state synthesis via in situ SEM显示文摘The particle morphology determined by the sintering process is the director factor affecting the electrochemical performance of Ni-rich NMC cathode materials.To prepare the ideal NMC particles,it is of great significance to understand the morphological changes during sintering process.In this work,the morphology evolution of LiNi_(0.8)Mn_(0.1)Co_(0.1)O_(2)(NMC811)synthesis at temperature ranging from 300–1080℃were observed by in situ SEM.The uniform mixture of spherical Ni_(0.8)Mn_(0.1)Co_(0.1)(OH)_(2)precursor and lithium sources(LiOH)was employed by high temperature solid-state process inside the SEM,which enables us to observe morphology changes in real time.The results show that synthetic reaction of LiNi_(0.8)Mn_(0.1)Co_(0.1)O_(2)usually includes three processes:the raw materials’dehydration,oxidation,and combination,accompanied by a significant reduction in particle size,which is important reference to control the synthesis temperature.As heating temperature rise,the morphology of mixture also changed from flake to brick-shaped.However,Ni nanoparticle formation is apparent at higher temperature~1000℃,suggesting a structural transformation from a layered to a rock-salt-like structure.Combining the in-situ observed changes in size and morphology,and with the premise of ensuring the morphology change from flakes to bricks,reducing the sintering temperature as much as possible to prevent excessive reduction in particle size and layered to a rock-salt structure transformation is recommended for prepare ideal NMC particles. | Liang Tang Xiaopeng Cheng Rui Wu Tianci Cao Junxia Lu Yuefei Zhang Ze Zhang | 2022 | Journal of Energy Chemistry2022，31，3： | 1 |
| 9 | Flow and penetration behavior of submerged side-blown gas显示文摘To assess the widely used submerged side-blowing in pyrometallurgy,a high-speed camera-digital image processing-statistical approach was used to systematically investigate the effects of the gas flow rate,nozzle diameter,and inclination angle on the space-time distribution and penetration behavior of submerged side-blown gas in an air-water system.The results show that the gas motion gradually changes from a bubbling regime to a steady jetting regime and the formation of a complete jet structure as the flow rate increases.When the flow rate is low,a bubble area is formed by large bubbles in the area above the nozzle.When the flow rate and the nozzle diameter are significant,a bubble area is formed by tiny bubbles in the area above the nozzle.The increased inclination angle requires a more significant flow rate to form a complete jet structure.In the sampling time,the dimensionless horizontal and vertical penetration depths are Gaussian distributed.Decreasing the nozzle diameter and increasing the flow rate or inclination angle will increase the distribution range and discreteness.New correlations for a penetration depth with an error of±20%were obtained through dimensional analysis.The dimensionless horizontal penetration depth of an argon-melt system in a 120 t converter calculated by the correlation proposed by the current study is close to the result calculated by a correlation in the literature and a numerical simulation result in the literature. | Shuai Zhu Qiuyue Zhao Xiaolong Li Yan Liu Tianci Li Ting’an Zhang | 2023 | International Journal of Minerals,Metallurgy and Materials2023，30，6： | 1 |
| 10 | Adsorption behavior of multi-walled carbon nanotubes for the re- moval of olaquindox from aqueous solutions 显示文摘 | ZHANG Lei XU Tianci LIU Xueyan | 2011 | Journal of Hazardous Materials2011，197，15： | 1 |
| 11 | 中国北方温带草原植被恢复的氮限制显示文摘围栏禁牧被认为是退化草原植被恢复的有效手段。在植被的恢复过程中,植物需要从土壤中吸收更多的氮。氮素也是中国北方温带草原植被生长的一个主要限制因素。目前尚不清楚该地区的土壤氮素供应是否能够支持长期的植被恢复。本研究在植被的生长季期间对我国北方7个温带草原进行了野外调查。其中,围栏外侧草地保持持续放牧状态,围栏内侧草地保持完全禁牧状态。研究结果表明,禁牧显著提高了草地地上生物量、物种丰富度和香农-维纳多样性指数,其分别提高了126.2%、42.6%和18.8%。禁牧使土壤硝态氮和总无机氮浓度分别降低了51.9%和21.0%,这表明生长季氮素供应与植物需求可能存在错配现象。同时,围封草地地上生物量、物种丰富度和香农-维纳多样性指数与豆科植物群落优势度呈正相关。这些结果表明,温带草原植被恢复受土壤无机氮限制。群落中豆科植物的生物固氮可能缓解植被恢复的氮限制。 | Yaowen Zhang Yunlong Zhang Tianci Huo Bin Wei Kangli Chen Nan Liu Yingjun Zhang Junyi Liang | 2023 | Journal of Plant Ecology2023，16，2： | 0 |
| 12 | Transcriptome and chemical analyses identify candidate genes associated with flower color shift in a natural mutant of Chrysanthemum × morifolium显示文摘Flower color variation in Chrysanthemum×morifolium is an important horticultural trait.This study identifies a natural bud sprout mutant of chrysanthemum cultivar Hanluhong(HLH)which normally produces red flowers.In the mutant(hlh),the tip of the petals turn golden yellow and gradually turn yellow from tip to the base.After two years of consecutive propagation through cuttings,the mutant traits were stable.Here,the contents of carotenoids and anthocyanidins were determined by HPLC-MS/MS.Compared to HLH,the hlh displayed significantly higher contents of lutein.Then we comparatively analyzed the transcriptome of the ray florets tissues during three flower developmental stages.Higher number of stage specific DEGs were found in mutant cultivar as compared to wild type.About 200 DEGs were filtered related to the metabolism of flavonoids,carotenoids,terpenoids,and anthocyanins.Combined with weighted gene co-expression network analysis(WGCNA)and qRT-PCR verification,CHI,DFR,ANS and CCD4 genes involved in anthocyanins biosynthesis and carotenoids degradation were identified as candidate genes.Among the transcription factors,MYB,bHLH and WD40 members showed significant expression variations between the two cultivars.These results improve our understanding of flower color variation especially red and yellow color transition in chrysanthemum. | Sagheer Ahmad Cunquan Yuan Tianci Cong Qingqing Yang Yujie Yang Qixiang Zhang | 2022 | Ornamental Plant Research2022，2，1： | 0 |
| 13 | Information freshness optimization of multiple status update streams in Internet of things:Generation rate control and service rate reservation显示文摘The Internet of things(IoT)has become a key infrastructure providing up-to-date and fresh information for policy analysis and decision-making of upper-layer applications.However,there are limited sensing and communication resources in IoT devices,which significantly affects the timeliness and freshness of the updated status.This work proposes two schemes,namely,the generation rate control and service rate reservation schemes,to improve the overall information freshness of multiple status update streams at the receiver.Specifically,using the recently proposed Age of Information(AoI)as the metric for evaluating information freshness,we characterized the overall information freshness,i.e.,the overall average AoI at the receiver for both schemes,by considering the urgency difference of status update and streams.Both schemes for status updates and streams,respectively,were formulated as two optimization problems.We proved that both problems are convex and the optimal generation and service rates for different streams are found by the standard convex optimization algorithm.Moreover,we proposed both approximate optimal generation and approximate optimal service rate for fast deployment in heavy and light load cases.Numerical results verify the theoretical findings and accuracy of the proposed approximate solutions,guiding the design and deployment of IoT. | Tianci Zhang Junjie Zhou Zhengchuan Chen Zhong Tian Wanli Wen Yunjian Jia | 2023 | Digital Communications and Networks2023，9，4： | 0 |
| 14 | Toward autonomous mining:design and development of an unmanned electric shovel via point cloud-based optimal trajectory planning显示文摘With the proposal of intelligent mines,unmanned mining has become a research hotspot in recent years.In the field of autonomous excavation,environmental perception and excavation trajectory planning are two key issues because they have considerable influences on operation performance.In this study,an unmanned electric shovel(UES)is developed,and key robotization processes consisting of environment modeling and optimal excavation trajectory planning are presented.Initially,the point cloud of the material surface is collected and reconstructed by polynomial response surface(PRS)method.Then,by establishing the dynamical model of the UES,a point to point(PTP)excavation trajectory planning method is developed to improve both the mining efficiency and fill factor and to reduce the energy consumption.Based on optimal trajectory command,the UES performs autonomous excavation.The experimental results show that the proposed surface reconstruction method can accurately represent the material surface.On the basis of reconstructed surface,the PTP trajectory planning method rapidly obtains a reasonable mining trajectory with high fill factor and mining efficiency.Compared with the common excavation trajectory planning approaches,the proposed method tends to be more capable in terms of mining time and energy consumption,ensuring high-performance excavation of the UES in practical mining environment. | Tianci ZHANG Tao FU Yunhao CUI Xueguan SONG | 2022 | Frontiers of Mechanical Engineering2022，17，3： | 0 |
| 15 | Metamorphic Evolution and Tectonic Implications of Garnet–Bearing Mica Schist in Sumdo High Pressure Belt from Eastern Lhasa Block, Tibet显示文摘The garnet–bearing mica–quartz schist of the Sumdo high pressure metamorphic beltfrom the Lhasa block is mainly composed of garnet,muscovite,albite,quartz and minor chlorite,rutile and sphene.Garnet displays obvious zonation where Xpy[=Mg/(Mg+Fe+Mn+Ca)]increases from the core to the mantle,and then decreases in the rim; | CHEN Mei YANG Jingsui ZHANG Cong TIAN Zuolin HUANG Jie YU-Huanglu DONG Tianci | 2015 | Acta Geologica Sinica(English Edition)2015，89，A02： | 0 |
| 16 | Enhancing milk quality and modulating rectal microbiota of dairy goats in starch‑rich diet:the role of bile acid supplementation显示文摘Background Diets rich in starch have been shown to increase a risk of reducing milk fat content in dairy goats.While bile acids(BAs)have been used as a lipid emulsifier in monogastric and aquatic animals,their effect on ruminants is not well understood.This study aimed to investigate the impact of BAs supplementation on various aspects of dairy goat physiology,including milk composition,rumen fermentation,gut microbiota,and BA metabolism.Results We randomly divided eighteen healthy primiparity lactating dairy goats(days in milk=100±6 d)into two groups and supplemented them with 0 or 4 g/d of BAs undergoing 5 weeks of feeding on a starch-rich diet.The results showed that BAs supplementation positively influenced milk yield and improved the quality of fatty acids in goat milk.BAs supplementation led to a reduction in saturated fatty acids(C16:0)and an increase in monounsaturated fatty acids(cis-9 C18:1),resulting in a healthier milk fatty acid profile.We observed a significant increase in plasma total bile acid concentration while the proportion of rumen short-chain fatty acids was not affected.Furthermore,BAs supplementation induced significant changes in the composition of the gut microbiota,favoring the enrichment of specific bacterial groups and altering the balance of microbial populations.Correlation analysis revealed associations between specific bacterial groups(Bacillus and Christensenellaceae R-7 group)and BA types,suggesting a role for the gut microbiota in BA metabolism.Functional prediction analysis revealed notable changes in pathways associated with lipid metabolism,suggesting that BAs supplementation has the potential to modulate lipid-related processes.Conclusion These findings highlight the potential benefits of BAs supplementation in enhancing milk production,improving milk quality,and influencing metabolic pathways in dairy goats.Further research is warranted to elucidate the underlying mechanisms and explore the broader implications of these findings. | Qingyan Yin Junjian Yu Jiaxiao Li Tianci Zhang Tianyu Wang Yufei Zhu Jun Zhang Junhu Yao | 2024 | Journal of Animal Science and Biotechnology2024，15，2： | 0 |
| 17 | Cyber-Attack Detection for Autonomous Driving Using Vehicle Dynamic State Estimation显示文摘As intelligent vehicles become increasingly computerized and networked,they gain more autonomous capabilities.However,they are also becoming more exposed to cyber-threats which are likely to be a more prominent concern.This paper proposes a cyber-attack detection method for autonomous vehicles based on secure estimation of vehicle states,with an example application under attacks in the vehicle localization system.To investigate the effects of vehicle model and estimator on the attack detection performance,different nonlinear vehicle dynamic models and estimation approaches are employed.The deviation between the measurement from the onboard sensors and the state estimation is monitored in real time.With the designed vehicle state estimator and preset threshold,the cyber-attack detection algorithm is further developed for autonomous vehicles,whose performance is tested in simulations where the vehicle localization system is assumed to be compromised during a double lane change maneuver.The test results demonstrate the feasibility and effectiveness of the proposed cyber-attack algorithm.In addition,the results illustrate the impacts of vehicle nonlinear characteristics on the cyber-attack detection performance.Beyond this,the effects of different vehicle models on the attack detection performance,as well as the selection of suitable filtering approaches for the attack detection,are also discussed. | Dong Zhang Chen Lv Tianci Yang Peng Hang | 2021 | Automotive Innovation2021，4，3： | 0 |
| 18 | Novel Hybrid Physics‑Informed Deep Neural Network for Dynamic Load Prediction of Electric Cable Shovel显示文摘Electric cable shovel(ECS)is a complex production equipment,which is widely utilized in open-pit mines.Rational valuations of load is the foundation for the development of intelligent or unmanned ECS,since it directly influences the planning of digging trajectories and energy consumption.Load prediction of ECS mainly consists of two types of methods:physics-based modeling and data-driven methods.The former approach is based on known physical laws,usually,it is necessarily approximations of reality due to incomplete knowledge of certain processes,which introduces bias.The latter captures features/patterns from data in an end-to-end manner without dwelling on domain expertise but requires a large amount of accurately labeled data to achieve generalization,which introduces variance.In addition,some parts of load are non-observable and latent,which cannot be measured from actual system sensing,so they can’t be predicted by data-driven methods.Herein,an innovative hybrid physics-informed deep neural network(HPINN)architecture,which combines physics-based models and data-driven methods to predict dynamic load of ECS,is presented.In the proposed framework,some parts of the theoretical model are incorporated,while capturing the difficult-to-model part by training a highly expressive approximator with data.Prior physics knowledge,such as Lagrangian mechanics and the conservation of energy,is considered extra constraints,and embedded in the overall loss function to enforce model training in a feasible solution space.The satisfactory performance of the proposed framework is verified through both synthetic and actual measurement dataset. | Tao Fu Tianci Zhang Yunhao Cui Xueguan Song | 2022 | Chinese Journal of Mechanical Engineering2022，35，6： | 0 |
| 19 | Manufacturing of ceramic cores:From hot injection to 3D printing显示文摘With the improvement of aero-engine performance,the preparation of hollow blades of single-crystal superalloys with complex inner cavity cooling structures is becoming increasingly urgent.The ceramic core is the key intermediate part of the preparation and has attracted wide attention.To meet this challenge,new technologies that can make up for the defects of long periods and high costs of fabricating complex structural cores by traditional hot injection technology are needed.Vat photopolymerization 3D printing ceramic technology has been applied to the core field to realize the rapid preparation of complex structural cores.However,the industrial application of this technology still needs further research and improvement.Herein,ceramic cores were prepared using traditional hot injection and vat photopolymerization 3D printing techniques using fused silica,nano-ZrO_(2),and Al_(2)O_(3) powders as starting materials.The 3D printed ceramic core has a typical layered structure with a small pore size and low porosity.Because of the layered structure,the pore area is larger than that of the hot injection ceramic core,the leaching performance has little effect(0.0277 g/min for 3D printing cores,0.298 g/min for hot injection cores).In the X and Y directions,the sintering shrinkage is low(2.7%),but in the Z direction,the shrinkage is large(4.7%).The fracture occurs when the inner layer crack expands and connects with the interlayer crack,forming a stepped fracture in the 3D-printed cores.The bending strength of the 3D printed core at high temperature(1500℃)is 17.3 MPa.These analyses show that the performance of vat photopolymerization 3D-printed ceramic cores can meet the casting requirements of single crystal superalloy blades,which is a potential technology for the preparation of complex structure ceramic cores.The research mode of 3D printing core technology based on the traditional hot injection process provides an effective new idea for promoting the industrial application of 3D printing core technology. | Qiaolei Li Tianci Chen Jingjing Liang Chaowei Zhang Jinguo Li Yizhou Zhou Xiaofeng Sun | 2023 | Journal of Materials Science & Technology2023，，3： | 0 |
| 20 | Surface-engineering enhanced sodium storage performance of Na_3V_2(PO_4)_3 cathode via in-situ self-decorated conducting polymer route显示文摘The key to the development of sodium ion battery is materials with a high rate capacity and cycle stability. Conducting coating is an efficient approach to improve electrochemical performance. As a case study, the Na_3V_2(PO_4)_3@PEDOT composite was prepared through an in-situ self-decorated conducting polymer route without further calcination. The Na_3V_2(PO_4)_3 electrode with a 7%poly(3,4-ethylenedioxythiophene)(PEDOT) coating can deliver an initial reversible capacity of 100 mA h g^(-1) at 1 cycle, and 82%capacity retention over 200 cycles. The results also show that the Na_3V_2(PO_4)_3 electrode without and with a thick PEDOT coating exhibits poor electrochemical performance, indicating that an appropriate coating layer is important for improving electronic conductivity and regulating Na-ion insertion. Therefore, this work offers possibility to promote the electrochemical performance of poor-conducting materials in sodium-ion batteries using an in-situ self-decorated conducting polymer. | Jiexin Zhang Tianci Yuan Haiying Wan Jiangfeng Qian Xinping Ai Hanxi Yang Yuliang Cao | 2017 | Science China Chemistry2017，60，12： | 0 |
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