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| 1 | Milling surface roughness for 7050 aluminum alloy cavity influenced by nozzle position of nanofluid minimum quantity lubrication显示文摘In nanofluid minimum quantity lubrication(NMQL)milling of aviation aluminum alloy,it is the bottleneck problem to adjust the position parameters(target distance,incidence angle,and elevation angle)of the nozzle to improve the surface roughness of milling,which has large and uncontrollable errors.In this paper,the influence law of milling cutter speed,helical angle,and cavity shape on the flow field around the milling cutter was studied,and the optimal nozzle profile parameters were obtained.Using 7050 aluminum alloy as the workpiece material,the milling experiment of the NMQL cavity was conducted by utilizing cottonseed oil-based Al2 O3 nanofluid.Results show that the high velocity of the surrounding air flow field and the strong gas barrier could be attributed to high rotating velocities of the milling cutter.The incidence angle of the nozzle was consistent with the helical angle of the milling cutter,the target distance was appropriate at 25–30 mm,and the elevation angle was suitable at 60°–65°.The range and variance analyses of the signal-to-noise ratio of milling force and roughness were performed,and the chip morphology was observed and analyzed.The results show that the optimal combination of nozzle position parameters was the target distance of 30 mm,the incidence angle of 35°,and the elevation angle of 60°.Among these parameters,target distance had the largest impact on cutting performance with a contribution rate of more than 55%,followed by incidence angle and elevation contribution rate.Analysis by orthogonal experiment revealed that the nozzle position parameters were appropriate,and Ra(0.087 lm)was reduced by 30.4%from the maximum value(0.125 lm).Moreover,Rsm(0.05 mm)was minimum,which was 36%lower than that of the seventh group(Rsm=0.078 mm). | Zhenjing DUAN Changhe LI Yanbin ZHANG Lan DONG Xiufang BAI Min YANG Dongzhou JIA Runze LI Huajun CAO Xuefeng XU | 2021 | Chinese Journal of Aeronautics2021，34，6： | 10 |
| 2 | A large time step Godunov scheme for free-surface shallow water equations显示文摘An algorithm for simulating free surface flows is presented using large time step based on the wave-propagation method proposed by LeVeque,and an exact Riemann solver is used.A multiple wave approximation approach was suggested for eliminating the discontinuities found in the rarefaction fans of dam-breaking flows.In addition,we use the random choice method to reduce non-physical oscillations.Applications demonstrate that the algorithm proposed in this paper can considerably increase the CFL number up to 25when modeling dam-break flows,while retaining satisfactory accuracy and efficiency.This suggests that our algorithm has the potential to be applied to modeling free surface flows. | Renyi Xu Deyu Zhong Baosheng Wu Xudong Fu Runze Miao | 2014 | Chinese Science Bulletin2014，59，21： | 5 |
| 3 | Analysis of grinding mechanics and improved grinding force model based on randomized grain geometric characteristics显示文摘Too high grinding force will lead to a large increase in specific grinding energy, resulting in high temperature in grinding zone, especially for the aerospace difficult cutting metal materials,seriously affecting the surface quality and accuracy. At present, the theoretical models of grinding force are mostly based on the assumption of uniform or simplified morphological characteristics of grains, which is inconsistent with the actual grains. Especially for non-engineering grinding wheel,most geometric characteristics of grains are ignored, resulting in the calculation accuracy that cannot guide practical production. Based on this, an improved grinding force model based on random grain geometric characteristics is proposed in this paper. Firstly, the surface topography model of CBN grinding wheel is established, and the effective grain determination mechanism in grinding zone is revealed. Based on the known grinding force model and mechanical behavior of interaction between grains and workpiece in different stages, the concept of grain effective action area is proposed. The variation mechanism of effective action area under the influence of grain geometric and spatial characteristics is deeply analyzed, and the calculation method under random combination of five influencing parameters is obtained. The numerical simulation is carried out to reveal the dynamic variation process of grinding force in grinding zone. In order to verify the theoretical model, the experiments of dry grinding Ti-6Al-4 V are designed. The experimental results show that under different machining parameters, the results of numerical calculation and experimental measurement are in good agreement, and the minimum error value is only 2.1 %, which indicates that the calculation accuracy of grinding force model meets the requirements and is feasible. This study will provide a theoretical basis for optimizing the wheel structure, effectively controlling the grinding force range, adjusting the grinding zone temperature and improving the workpiece machining quality in the industrial grinding process. | Mingzheng LIU Changhe LI Yanbin ZHANG Min YANG Teng GAO Xin CUI Xiaoming WANG Wenhao XU Zongming ZHOU Bo LIU Zafar SAID Runze LI Shubham SHARMA | 2023 | Chinese Journal of Aeronautics2023，36，7： | 5 |
| 4 | Electrostatic atomization minimum quantity lubrication machining:from mechanism to application显示文摘Metal cutting fluids(MCFs)under flood conditions do not meet the urgent needs of reducing carbon emission.Biolubricant-based minimum quantity lubrication(MQL)is an effective alternative to flood lubrication.However,pneumatic atomization MQL has poor atomization properties,which is detrimental to occupational health.Therefore,electrostatic atomization MQL requires preliminary exploratory studies.However,systematic reviews are lacking in terms of capturing the current research status and development direction of this technology.This study aims to provide a comprehensive review and critical assessment of the existing understanding of electrostatic atomization MQL.This research can be used by scientists to gain insights into the action mechanism,theoretical basis,machining performance,and development direction of this technology.First,the critical equipment,eco-friendly atomization media(biolubricants),and empowering mechanisms of electrostatic atomization MQL are presented.Second,the advanced lubrication and heat transfer mechanisms of biolubricants are revealed by quantitatively comparing MQL with MCF-based wet machining.Third,the distinctive wetting and infiltration mechanisms of electrostatic atomization MQL,combined with its unique empowering mechanism and atomization method,are compared with those of pneumatic atomization MQL.Previous experiments have shown that electrostatic atomization MQL can reduce tool wear by 42.4%in metal cutting and improve the machined surface Ra by 47%compared with pneumatic atomization MQL.Finally,future development directions,including the improvement of the coordination parameters and equipment integration aspects,are proposed. | Wenhao Xu Changhe Li Yanbin Zhang Hafiz Muhammad Ali Shubham Sharma Runze Li Min Yang Teng Gao Mingzheng Liu Xiaoming Wang Zafar Said Xin Liu Zongming Zhou | 2022 | International Journal of Extreme Manufacturing2022，4，4： | 4 |
| 5 | Highly Dispersed Cobalt Nanoparticles Embedded in Nitrogen-Doped Graphitized Carbon for Fast and Durable Potassium Storage显示文摘Potassium-ion batteries(KIBs)have great potential for applications in large-scale energy storage devices.However,the larger radius of K+leads to sluggish kinetics and inferior cycling performance,severely restricting its practical applicability.Herein,we propose a rational strategy involving a Prussian blue analogue-derived graphitized carbon anode with fast and durable potassium storage capability,which is constructed by encapsulating cobalt nanoparticles in nitrogen-doped graphitized carbon(Co-NC).Both experimental and theoretical results show that N-doping effectively promotes the uniform dispersion of cobalt nanoparticles in the carbon matrix through Co-N bonds.Moreover,the cobalt nanoparticles and strong Co-N bonds synergistically form a threedimensional conductive network,increase the number of adsorption sites,and reduce the diffusion energy barrier,thereby facilitating the adsorption and the diffusion kinetics.These multiple effects lead to enhanced reversible capacities of 305 and 208.6 mAh g^−1 after 100 and 300 cycles at 0.05 and 0.1 A g^−1,respectively,demonstrating the applicability of the Co-NC anode for KIBs. | Xiaodong Shi Zhenming Xu Cheng Han Runze Shi Xianwen Wu Bingan Lu Jiang Zhou Shuquan Liang | 2021 | Nano-Micro Letters2021，13，2： | 4 |
| 6 | 用高压氧治疗高原脱习服症的效果分析显示文摘目的:探讨用高压氧治疗高原脱习服症的临床效果。方法:对近期结束高原防守任务后赴临潼疗养院进行疗养治疗的31例高原官兵的临床资料进行回顾性研究。我们将这31例患者分为高压氧组和康复疗养组,其中,高压氧组有18例患者,康复疗养组有13例患者。我院对康复疗养组的患者进行康复疗养,在此基础上,对高压氧组的患者进行高压氧治疗。我们在患者入院时、进行治疗后的15天及30天记录其临床症状,并对其临床症状的改善情况进行评分,比较两组患者的评分结果。结果:在治疗后15天后,高压氧组患者的高原脱习服症状评分明显低于康复疗养组的患者,二者相比差异有显著性(P<0.05)。结论:在进行康复疗养的基础上用高压氧治疗高原脱习服症可明显地改善患者的症状。但该方法的治疗效果及成熟的治疗方案尚待进一步的研究。 | 哈振德 Xu Li Shi Runze Guo Guanghui Song Wei Wang Junfang Zhang Quan | 2014 | 当代医药论丛2014，12，14： | 3 |
| 7 | Numerical study of the rotor thickness noise reduction based on the concept of sound field cancellation显示文摘Numerical studies were performed to investigate the mechanism and potential of several active rotors for reducing low-frequency in-plane thickness noise generated by rotating blades.A numerical method coupling the blade element theory,prescribed wake model and Fowcs Williams-Hawkings(FW-H)equation was established for rotor noise prediction.It is indicated that the excitation force on the blade tip can generate anti-noise that to partly cancel the in-plane thickness noise with an appropriate actuation law.Results from the phase,frequency and amplitude sweeps show that the excitation force direction and actuation law are the crucial factors affecting the noise reduction,which determine the noise reduction area in the elevation and azimuth directions,respectively.The active trailing-flap rotor can generate the in-plane excitation force,but because of large lift-drag ratio the anti-noise is mainly from the vertical lift,which is caused by flap deflection similar to a variable camber airfoil.For the harmonic control rotor and active twist rotor,the excitation force is also attributed to the vertical blade lift.The vertical force can reduce the noise near the rotor plane,it will also cause the noise increase in most other areas.Finally,two new active rotors were proposed to generate the in-plane chordwise and spanwise excitation force.With the modified actuation law,the noise in most areas around the rotor was reduced,which improved the acoustic characteristics of rotor significantly. | Runze XIA Yongjie SHI Teng LI Guohua XU | 2022 | Chinese Journal of Aeronautics2022，35，3： | 1 |
| 8 | The Solar Upper Transition Region Imager(SUTRI)Onboard the SATech-01 Satellite显示文摘The Solar Upper Transition Region Imager(SUTRI)onboard the Space Advanced Technology demonstration satellite(SATech-01),which was launched to a Sun-synchronous orbit at a height of~500 km in 2022 July,aims to test the on-orbit performance of our newly developed Sc/Si multi-layer reflecting mirror and the 2k×2k EUV CMOS imaging camera and to take full-disk solar images at the Ne VII 46.5 nm spectral line with a filter width of~3 nm.SUTRI employs a Ritchey-Chrétien optical system with an aperture of 18 cm.The on-orbit observations show that SUTRI images have a field of view of~416×416 and a moderate spatial resolution of~8″without an image stabilization system.The normal cadence of SUTRI images is 30 s and the solar observation time is about16 hr each day because the earth eclipse time accounts for about 1/3 of SATech-01's orbit period.Approximately15 GB data is acquired each day and made available online after processing.SUTRI images are valuable as the Ne VII 46.5 nm line is formed at a temperature regime of~0.5 MK in the solar atmosphere,which has rarely been sampled by existing solar imagers.SUTRI observations will establish connections between structures in the lower solar atmosphere and corona,and advance our understanding of various types of solar activity such as flares,filament eruptions,coronal jets and coronal mass ejections. | Xianyong Bai Hui Tian Yuanyong Deng Zhanshan Wang Jianfeng Yang Xiaofeng Zhang Yonghe Zhang Runze Qi Nange Wang Yang Gao Jun Yu Chunling He Zhengxiang Shen Lun Shen Song Guo Zhenyong Hou Kaifan Ji Xingzi Bi Wei Duan Xiao Yang Jiaben Lin Ziyao Hu Qian Song Zihao Yang Yajie Chen Weidong Qiao Wei Ge Fu Li Lei Jin Jiawei He Xiaobo Chen Xiaocheng Zhu Junwang He Qi Shi Liu Liu Jinsong Li Dongxiao Xu Rui Liu Taijie Li Zhenggong Feng Yamin Wang Chengcheng Fan Shuo Liu Sifan Guo Zheng Sun Yuchuan Wu Haiyu Li Qi Yang Yuyang Ye Weichen Gu Jiali Wu Zhe Zhang Yue Yu Zeyi Ye Pengfeng Sheng Yifan Wang Wenbin Li Qiushi Huang Zhong Zhang | 2023 | Research in Astronomy and Astrophysics2023，23，6： | 1 |
| 9 | Serial deletion reveals structural basis and stability for the core enzyme activity of human glutaminase 1 isoforms:relevance to excitotoxic neurodegeneration显示文摘Background:Glutaminase 1 is a phosphate-activated metabolic enzyme that catalyzes the first step of glutaminolysis,which converts glutamine into glutamate.Glutamate is the major neurotransmitter of excitatory synapses,executing important physiological functions in the central nervous system.There are two isoforms of glutaminase 1,KGA and GAC,both of which are generated through alternative splicing from the same gene.KGA and GAC both transcribe 1–14 exons in the N-terminal,but each has its unique C-terminal in the coding sequence.We have previously identified that KGA and GAC are differentially regulated during inflammatory stimulation and HIV infection.Furthermore,glutaminase 1 has been linked to brain diseases such as amyotrophic lateral sclerosis,Alzheimer’s disease,and hepatic encephalopathy.Core enzyme structure of KGA and GAC has been published recently.However,how other coding sequences affect their functional enzyme activity remains unclear.Methods:We cloned and performed serial deletions of human full-length KGA and GAC from the N-terminal and the C-terminal at an interval of approximately 100 amino acids(AAs).Prokaryotic expressions of the mutant glutaminase 1 protein and a glutaminase enzyme activity assay were used to determine if KGA and GAC have similar efficiency and efficacy to convert glutamine into glutamate.Results:When 110 AAs or 218 AAs were deleted from the N-terminal or when the unique portions of KGA and GAC that are beyond the 550 AA were deleted from the C-terminal,KGA and GAC retained enzyme activity comparable to the full length proteins.In contrast,deletion of 310 AAs or more from N-terminal or deletion of 450 AAs or more from C-terminal resulted in complete loss of enzyme activity for KGA/GAC.Consistently,when both Nand C-terminal of the KGA and GAC were removed,creating a truncated protein that expressed the central 219 AA-550 AA,the protein retained enzyme activity.Furthermore,expression of the core 219 AA-550 AA coding sequence in cells increased extracellular glutamate concentrations to levels comparable to those of full-length KGA and GAC expressions,suggesting that the core enzyme activity of the protein lies within the central 219 AA-550 AA.Full-length KGA and GAC retained enzyme activities when kept at 4°C.In contrast,219 AA-550 AA truncated protein lost glutaminase activities more readily compared with full-length KGA and GAC,suggesting that the Nterminal and C-terminal coding regions are required for the stability KGA and GAC.Conclusions:Glutaminase isoforms KGA and GAC have similar efficacy to catalyze the conversion of glutamine to glutamate.The core enzyme activity of glutaminase 1 protein is within the central 219 AA-550 AA.The N-terminal and C-terminal coding regions of KGA and GAC help maintain the long-term activities of the enzymes. | Yuju Li Justin Peer Runze Zhao Yinghua Xu Beiqing Wu Yi Wang Changhai Tian Yunlong Huang Jialin Zheng | 2017 | Translational Neurodegeneration2017，6，1： | 1 |
| 10 | 一个基于深度学习的眼病和肺炎两大类疾病的AI诊断系统显示文摘文章简介本研究开发了一个基于深度学习框架能诊断致盲性视网膜疾病的人工智能(AI)诊断工具。而且,该AI诊断工具还可用于诊断小儿肺炎。这是一项将AI应用于医疗领域的重磅研究成果,有望高精确诊断多种可治疗性疾病。在眼科治疗中,视网膜OCT(光学相干断层扫描)成像技术是最常用的诊断技术之一。 | Daniel S.Kermany Michael Goldbaum Wenjia Cai Carolina C.S.Valentim Huiying Liang Sally L.Baxter Alex McKeown Ge Yang Xiaokang Wu Fangbing Yan Justin Dong Made K.Prasadha Jacqueline Pei Magdalene Y.L.Ting Jie Zhu Christina Li Sierra Hewett Jason Dong Ian Ziyar Alexander Shi Runze Zhang Rui Hou William Shi Xin Fu Yaou Duan Viet A.N. Huu Cindy Wen Edward D. Zhang Charlotte L. Zhang Oulan Li Xiaobo Wang Michael A. Singer Xiaodong Sun Jie Xu Ali Tafreshi M. Anthony Lewis Huimin Xia 张康 | 2019 | 科学新闻2019，0，2： | 1 |
| 11 | Nanoparticle-enhanced coolants in machining:mechanism,application,and prospects显示文摘Nanoparticle-enhanced coolants(NPECs)are increasingly used in minimum quantity lubrication(MQL)machining as a green lubricant to replace conventional cutting fluids to meet the urgent need for carbon emissions and achieve sustainable manufacturing.However,the thermophysical properties of NPEC during processing remain unclear,making it difficult to provide precise guidance and selection principles for industrial applications.Therefore,this paper reviews the action mechanism,processing properties,and future development directions of NPEC.First,the laws of influence of nano-enhanced phases and base fluids on the processing performance are revealed,and the dispersion stabilization mechanism of NPEC in the preparation process is elaborated.Then,the unique molecular structure and physical properties of NPECs are combined to elucidate their unique mechanisms of heat transfer,penetration,and antifriction effects.Furthermore,the effect of NPECs is investigated on the basis of their excellent lubricating and cooling properties by comprehensively and quantitatively evaluating the material removal characteristics during machining in turning,milling,and grinding applications.Results showed that turning of Ti‒6Al‒4V with multi-walled carbon nanotube NPECs with a volume fraction of 0.2%resulted in a 34%reduction in tool wear,an average decrease in cutting force of 28%,and a 7%decrease in surface roughness Ra,compared with the conventional flood process.Finally,research gaps and future directions for further applications of NPECs in the industry are presented. | Shuguo HU Changhe LI Zongming ZHOU Bo LIU Yanbin ZHANG Min YANG Benkai LI Teng GAO Mingzheng LIU Xin CUI Xiaoming WANG Wenhao XU Y.S.DAMBATTA Runze LI Shubham SHARMA | 2023 | Frontiers of Mechanical Engineering2023，18，4： | 0 |
| 12 | Stable correlation and robust feature screening显示文摘In this paper,we propose a new correlation,called stable correlation,to measure the dependence between two random vectors.The new correlation is well defined without the moment condition and is zero if and only if the two random vectors are independent.We also study its other theoretical properties.Based on the new correlation,we further propose a robust model-free feature screening procedure for ultrahigh dimensional data and establish its sure screening property and rank consistency property without imposing the subexponential or sub-Gaussian tail condition,which is commonly required in the literature of feature screening.We also examine the finite sample performance of the proposed robust feature screening procedure via Monte Carlo simulation studies and illustrate the proposed procedure by a real data example. | Xu Guo Runze Li Wanjun Liu Lixing Zhu | 2022 | Science China Mathematics2022，65，1： | 0 |
| 13 | Insight into the interaction between trimethoprim and soluble microbial products produced from biological wastewater treatment processes显示文摘Soluble microbial products(SMPs),dissolved organic matter excreted by activated sludge,can interact with antibiotics in wastewater and natural water bodies.Interactions between SMPs and antibiotics can influence antibiotic migration,transformation,and toxicity but the mechanisms involved in such interactions are not fully understood.In this study,integrated spectroscopy approaches were used to investigate the mechanisms involved in interactions between SMPs and a representative antibiotic,trimethoprim(TMP),which has a low biodegradation rate and has been detected in wastewater.The results of liquid chromatography-organic carbon detection-organic nitrogen detection indicated that the SMPs used in the study contained 15% biopolymers and 28% humic-like substances(based on the total dissolved organic carbon concentration)so would have contained sites that could interact with TMP.A linear relationship of fluorescent intensities of tryptophan protein-like substances in SMP was observed(R^(2)>0.99),indicating that the fluorescence enhancement between SMP and TMP occurred.Fourier-transform infrared spectroscopy and X-ray photoelectron spectroscopy indicated that carboxyl,carbonyl,and hydroxyl groups were the main functional groups involved in the interactions.The electrostatic andπ-πinteractions were discovered by the UV-vis spectra and 1H nuclear magnetic resonance spectra.Structural representations of the interactions between representative SMP subcomponents and TMP were calculated using density functional theory,and the results confirmed the conclusions drawn from the 1H nuclear magnetic resonance spectra.The results help characterize SMP–TMP complexes and will help understand antibiotic transformations in wastewater treatment plants and aquatic environments. | Runze Xu Fang Fang Longfei Wang Jingyang Luo Jiashun Cao | 2023 | Journal of Environmental Sciences2023，，2： | 0 |
| 14 | Lanchester equation for cognitive domain using hesitant fuzzy linguistic terms sets显示文摘Intelligent wars can take place not only in the physical domain and information domain but also in the cognitive domain.The cognitive domain will become the key domain to win in the future intelligent war.A Lanchester equation considering cognitive domain is proposed to fit the development tendency intelligent wars in this paper.One party is considered to obtain the exponential enhancement advantage on combat forces in combat if it can gain an advantage in the cognitive domain over the other party according to the systemic advantage function.The operational effectiveness of the cognitive domain in war is considered to consist of a series of indicators.Hesitant fuzzy sets and linguistic term sets are powerful tools when evaluating indicators,hence the indicators are scored by experts using hesitant fuzzy linguistic terms sets here.A unique hesitant fuzzy hybrid arithmetical averaging operator is used to aggregate the evaluation. | HAN Qi LI Weimin XU Qiling ZHAO Minrui HUO Runze ZHANG Tao | 2022 | Journal of Systems Engineering and Electronics2022，33，3： | 0 |
| 15 | Pure-Blue Fluorescence Molecule for Nondoped Electroluminescence with External Quantum Efficiency Approaching 13%显示文摘A pure-blue light-emitting material is one of the key components in the preparation of organic lightemitting diode(OLED)displays.Although highefficiency blue OLEDs have been realized in thermally activated delayed fluorescence(TADF)materials,they need to be dispersed into suitable hostmaterials.Hence,exploring efficient nondoped,pure-blue luminous molecules is important. | Xianhao Lv Lei Xu Miao Cang Runze Wang Mizhen Sun Huayi Zhou Yuan Yu Qikun Sun Yuyu Pan Yuwei Xu Dehua Hu Shanfeng Xue Wenjun Yang | 2021 | CCS Chemistry2021，3，9： | 0 |
| 16 | PROCESS CHARACTERISTICS OF HoBa2Cu3O7-δ AND EFFECT OF MAGNETIC FIELD ON SUPERCONDUCTIVITY OF REBa2Cu3O7-δ (RE=Y,Ho)显示文摘PROCESSCHARACTERISTICSOFHoBa2Cu3O7-δANDEFFECTOFMAGNETICFIELDONSUPERCONDUCTIVITYOFREBa2Cu3O7-δ(RE=Y,Ho)￥Yi,Jianhong;Pen... | Yi, Jianhong Peng, Chaoqun Shu, Yongchun Lin, Caidong Xu, Runze | 1995 | 中国有色金属学会会刊:英文版1995，5，2： | 0 |
| 17 | Advances in 3D Bioprinting显示文摘Three-dimensional(3D)bioprinting has emerged as a promising approach for engineering functional tissues and organs by layer-by-layer precise positioning of biological materials,living cells,and biochemical components.Compared with nonbiological printing,3D bioprinting involves additional complexities and technical challenges owing to the processing of living cells,such as the appropriate biomaterials that fulfill the requirements for both printability and functionality.In this review,we first introduce the development course of 3D bioprinting,highlighting innovative forms of living building blocks and advances in enabling techniques of 3D bioprinting.We then summarize the state-of-the-art advancements in 3D bioprinting for biomedical applications,including macroscale tissue or organ bioprinting,disease modeling,microphysiological systems,biobots,and bioprinting in space.Despite the rapid development of 3D bioprinting over the past decades,most 3D bioprinted tissue or organ constructs are still far from being suitable for clinical translation,and it is necessary for the field of bioprinting to shift its focus from shape mimicking towards functionality development.Therefore,we provide our perspectives on this burgeoning field with an emphasis on functional maturation post printing and translational applications at the bedside. | Yongcong Fang Yuzhi Guo Tiankun Liu Runze Xu Shuangshuang Mao Xingwu Mo Ting Zhang Liliang Ouyang Zhuo Xiong Wei Sun | 2022 | Chinese Journal of Mechanical Engineering(Additive Manufacturing Frontiers)2022，1，1： | 0 |
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