生态农产品品牌形象对消费者信任的影响——基于消费者社交网络参与度的调节效应

本文基于信号传递理论阐述了生态农产品品牌形象影响消费者信任的逻辑机理,并利用全国1113位有机牛奶消费者的微观调查数据,实证检验了生态农产品品牌形象对消费者信任的影响效应及其传导机制。结果表明:(1)品牌作为一种能够降低消费者选择成本的排他性品类符号,具有重要的信息传递功能,对于解决生态农产品市场的信息不对称问题有积极意义,但不同品牌的影响力和号召力不同,其原因在于品牌形象存在差异,品牌形象越好,消费者对产品信任度越高。(2)在品牌形象对消费者信任的影响关系中,消费者社交网络参与度发挥着一定程度的正向调节作用,品牌形象对社交网络参与度较高的消费者产品信任影响较为强烈。(3)品牌形象对消费者信任的影响存在一定的异质性,对于社会信任水平较低和生态认知水平较高的消费者而言,品牌形象对其产品信任的影响较为显著。

基于CNN–LSTM的风电场发电功率迁移预测方法

随着能源消耗的持续增长和全球气候问题的日趋严峻,以风能为代表的清洁能源装机容量正在稳步提升。为更好地消纳风电,需要准确的风电场发电功率预测为配套设施建设和未来规划制定提供有效依据。针对在缺少风电历史运行数据时预测精度较低的问题,提出一种基于卷积神经网络–长短期记忆神经网络(CNN–LSTM)的规划阶段风电场发电功率预测模型。首先,基于参考电站历史数据提取风速–风电功率实测数据点,采用3次样条插值进行风电功率曲线建模。然后,采用K–means聚类算法,根据风速–风电功率的特性关系划分参考风电场的区域类别。综合考虑风电功率与多维气象因素的特征关系和功率的时序特性,构建CNN–LSTM预测模型,提出基于功率曲线的预测结果修正方法。最后,基于某地风电场实际数据进行算例分析,并与使用标准功率曲线和未进行修正时的预测结果进行对比分析。结果表明:基于风速–风电功率特性的风电场聚类可以实现参考风电场的优化识别;所提模型预测结果优于传统标准功率曲线预测方法,基于功率曲线的修正方法进一步提升了预测效果。基于深度学习算法的规划阶段风电场发电功率迁移预测模型综合考虑了风力发电特性和多维环境因素,其有效性得到了验证,可以为提高规划阶段风电场发电功率的预测精度提供新思路。

男性运动员睡眠障碍的神经机制探究:基于复杂网络模型

目的:通过使用无目标不加权及目标加权的复杂网络模型方法,分析睡眠障碍运动员睡前神经机能状态与睡眠质量的复杂作用方式,揭示运动员发生睡眠障碍的神经机能状态特征。方法:在睡眠实验室内使用多导睡眠仪监测14名男性睡眠障碍运动员4晚完整睡眠,并在睡前使用便携式脑电仪、超慢波涨落潮技术、Polar H10心率胸带和心境状态量表,分别测试或评估中枢机能状态、脑内神经递质水平、自主神经状态以及情绪状态。基于测试数据分别建立无目标不加权,以及以睡眠质量为目标的加权复杂网络模型。结果:1)无目标不加权的复杂网络模型中,介数中心性结果提示,慌乱、精力和愤怒情绪、α抑制%、去甲肾上腺素(NE)和多巴胺、相邻窦性R-R间期差值大于50 ms所占百分比(PNN50)、平均R-R间隔、平均心率(MHR)和睡眠总时间是此网络的关键影响节点。特征向量中心性分析结果显示,上述指标中除PNN50、NE和MHR外,抑郁、紧张和疲劳情绪与其他指标仍是网络的重要连接节点。2)在以睡眠质量为目标的加权复杂网络模型中,目标介数中心性结果发现,情绪状态在到达睡眠质量指标的最短路径中出现频率最高(48.57%),其次神经递质和睡眠指标频率相同(14.29%),而中枢神经机能状态和自主神经状态出现的频率最低(11.43%)。目标特征向量中心性结果表明,情绪状态成为影响睡眠质量最重要的影响因素,出现频率为82.86%,其次是自主神经状态出现频率为8.57%,而中枢神经机能状态、神经递质和睡眠指标出现频率相同(2.86%)。结论:运动员睡眠障碍的主要表现为总时长短,睡眠期间觉醒时间长导致睡眠效率低。复杂网络模型方法揭示了情绪(主要为消极情绪)是睡眠质量低和睡眠障碍发生的主要影响节点和关键因素,其中愤怒、慌乱情绪与脑内神经递质(5-HT和DA)、中枢疲劳程度相关,中枢疲劳程度和自主神经协调性与精力状态相关。

基于社区移动医疗的心律失常筛查方案真实世界研究

背景心律失常发生率高且严重威胁人类健康,但由于其症状的隐匿性和发作的不可预测性,传统的心电设备很难捕捉到发作时心电图,无法得以确诊和对因治疗。在社区医生指导下,居民居家自行应用单导联可穿戴心电设备采集数据并实时上传可以明显提升心律失常的诊断率,但目前国内外相关研究大多缺乏真实世界数据的支撑。目的探讨基于社区移动医疗的3种心律失常筛查方案的真实世界研究。方法选取2020年9月至2021年9月银川市所属社区纳入的435例居民作为受试者,根据性别分为男性组(177例)、女性组(258例);根据年龄分为青年组(135例)、中年组(200例)、老年组(100例);根据受教育程度分为小学组(77例)、中学组(165例)、大学组(193例);根据既往有无明确心血管病病史分为有病史组(233例)和无病史组(202例)。应用单导联可穿戴远程心电设备,分别按以下方案采集心电数据:间断采集3次24 h心电数据(方案1);采集1次24 h及至少3次1 h心电数据(方案2);连续采集1次72 h及至少1次1 h心电数据(方案3)。由受试者自主自愿选择筛查方案中的任意1种,不论有无症状均自主选择时间,自行佩戴单导联可穿戴远程心电设备采集心电数据并上传至云平台。统计选择3种筛查方案的受试者数量、不同分组与方案选择的相关性,及3种筛查方案的心律失常检出率。结果选择3种筛查方案的受试者分别为321、40、74例。其中3种筛查方案受试者平均年龄比较,差异有统计学意义(P=0.047);受试者性别、受教育程度、有/无病史与方案选择无相关性(χ^(2)=0.670,P=0.715;χ^(2)=2.994,P=0.559;χ^(2)=2.225,P=0.893);不同年龄分组与方案选择有相关性(χ^(2)=9.939,P=0.041)。3种筛查方案心律失常的检出率分别为85.67%、82.50%、85.14%,差异无统计学意义(χ^(2)=0.286,P=0.867);男性组、女性组受试者的3种筛查方案心律失常检出率比较,差异无统计学意义(χ^(2)=0.966,P=0.707;χ^(2)=0.917,P=0.678);青年组、中年组、老年组受试者的3种筛查方案心律失常检出率比较,差异无统计学意义(χ^(2)=2.102,P=0.350;χ^(2)=0.871,P=0.706;χ^(2)=1.063,P=0.622);小学组、中学组、大学组受试者的3种筛查方案心律失常检出率比较,差异无统计学意义(χ^(2)=2.421,P=0.271;χ^(2)=1.115,P=0.633;χ^(2)=2.181,P=0.353);有病史组、无病史组受试者的3种筛查方案心律失常检出率比较,差异无统计学意义(χ^(2)=1.442,P=0.507;χ^(2)=0.548,P=0.818)。方案2的1 h心电数据采集次数与心律失常检出率呈正相关(rs=0.912,P=0.011);方案3的1 h心电数据采集次数与心律失常检出率呈正相关(rs=0.852,P=0.026)。方案2中24 h心电数据心律失常检出率为72.5%,1 h心电数据心律失常检出率为77.5%,两种时长心电数据诊断结果间具有较强一致性(Kappa值=0.601,P=0.001);方案3中72 h心电数据心律失常检出率为82.4%,1 h心电数据心律失常检出率为63.5%,两种时长心电数据诊断结果间具有中等一致性(Kappa值=0.410,P<0.001);方案2中1 h心电数据诊断与总方案诊断结果间具有强一致性(Kappa值=0.844,P<0.001);24 h心电数据诊断与总方案诊断结果间具有较强一致性(Kappa值=0.717,P<0.001)。方案3中1 h心电数据诊断与总方案诊断结果具有中等一致性(Kappa值=0.466,P<0.001),一致性强度一般;72 h诊断与总方案诊断结果具有强一致性(Kappa值=0.901,P<0.001)。结论基于社区移动医疗的3种心律失常筛查方案心律失常检出率无显著差异,不论有无症状均可使用,不同年龄受试者选择3种筛查方案倾向性不同,1 h心电数据采集次数与心律失常检出率呈正相关,提示社区医生应结合患者的年龄、职业特点、经济收入等因素进行多维度评估后,选择能达到最优依从性筛查方案,才能真正使移动医疗服务助力于社区心律失常患者的筛查及管理工作。

黑龙江电力现货市场建设建议及结算机制设计

电力现货市场建设是我国深化电力体制改革的关键环节。第一批8个试点省份对电力现货市场建设进行了有益探索,但也遇到了价格信号不明晰、部分省份用户未参与、结算资金不平衡等问题。作为非试点省份,黑龙江具有电源种类单一、灵活性资源匮乏、新能源及供热机组占比高、调峰矛盾突出等独有的困难。基于试点省份电力现货市场的建设经验,分析了不同市场模式的优缺点,结合黑龙江的电力生产实际情况,给出市场体系设计、用户和新能源参与电力现货市场方面的建议;对日前市场的不同出清方式进行对比,设计了黑龙江日前市场的建设路径;剖析了试点省份双轨制不平衡资金和市场化不平衡资金产生的机理,设计了计划与市场解耦的方法以及基数电量的分配方式,得到了一种在试点省份基础上进行改良的结算机制,以期推动黑龙江电力现货市场建设的健康发展。

河南省居民新冠病毒疫苗犹豫影响因素分析——基于结构方程模型

目的了解河南省居民新冠病毒疫苗接种犹豫状况,探讨其影响因素及作用机制,为治理新冠疫苗犹豫提供对策。方法采用滚雪球抽样的方法,于2021年8月使用一般资料调查表、生活行为方式调查表、医生和疫苗开发者量表对居民进行调查。对新冠疫苗犹豫特征进行描述性分析,通过主成分分析提取潜在变量,构建结构方程模型分析居民新冠疫苗犹豫的影响因素。结果共调查河南省4962名居民,其中有272名(5.48%)居民出现新冠疫苗犹豫。结构方程模型分析结果发现,社会经济特征和生活方式对新冠疫苗犹豫有直接影响(P<0.001),其中社会经济特征总效应为-0.574(直接效应-0.548,间接效应-0.026),生活方式对新冠疫苗犹豫的作用大小为-0.067(P=0.005);医疗系统信任和新冠防护行为对疫苗犹豫的直接影响差异无统计学意义(P=0.053,P=0.739),其可通过与社会经济特征的相关性来作用于新冠疫苗犹豫。结论河南省居民新冠疫苗犹豫率处于较低的水平,疫苗犹豫影响因素中社会经济特征的总效应最大,其次是生活方式,医疗系统信任和新冠防护行为通过影响社会经济特征进而作用于新冠疫苗犹豫。

End-cloud collaboration method enables accurate state of health and remaining useful life online estimation in lithium-ion batteries

Though the lithium-ion battery is universally applied,the reliability of lithium-ion batteries remains a challenge due to various physicochemical reactions,electrode material degradation,and even thermal runaway.Accurate estimation and prediction of battery health conditions are crucial for battery safety management.In this paper,an end-cloud collaboration method is proposed to approach the track of battery degradation process,integrating end-side empirical model with cloud-side data-driven model.Based on ensemble learning methods,the data-driven model is constructed by three base models to obtain cloud-side highly accurate results.The double exponential decay model is utilized as an empirical model to output highly real-time prediction results.With Kalman filter,the prediction results of end-side empirical model can be periodically updated by highly accurate results of cloud-side data-driven model to obtain highly accurate and real-time results.Subsequently,the whole framework can give an accurate prediction and tracking of battery degradation,with the mean absolute error maintained below 2%.And the execution time on the end side can reach 261μs.The proposed end-cloud collaboration method has the potential to approach highly accurate and highly real-time estimation for battery health conditions during battery full life cycle in architecture of cyber hierarchy and interactional network.

Thermodynamic analysis, synthesis, characterization, and evaluation of 1-ethyl-3-methylimidazolium chloride: Study of its effect on pretreated rice husk

This work is focused on the determination of the optimal reaction conditions to synthesize the ionic liquid 1-ethyl-3-methylimidazolium chloride([EMIM][Cl]) and assess its suitability for the pretreatment of rice husk. The modified UNIFAC(UNIversal quasi-chemical Functional-group Activity Coefficients)approach for ionic liquids is used to develop a thermodynamic model that describes the reactive system methylimidazole(MIM), chloroethane(C_(2)H_(5)Cl) and [EMIM][Cl]. The model allows to study the phase equilibria coexistence(vapor–liquid equilibria and solid–liquid equilibria) and yields the theoretically optimal conditions to synthesize the ionic liquid. The model predictions are validated with the available experimental and reported data. By implementing the developed model, a simple way to synthesize ionic liquid [EMIM][Cl] was found allowing to study its influence on the structure and morphology of pretreated rice husk. The lignocellulosic materials involved in this study are characterized by their composition, enzymatic digestibility, scanning electron microscopy, and crystallinity. Compared to untreated material, [EMIM][Cl]-pretreated rice husk produces cellulose that can be efficiently enzymatic hydrolyzed with high sugar yields. This work offers a suitable methodology to include the synthesis and thermodynamics of the solvent media within the design of low-cost ionic liquids for lignocellulosic biomass pretreatment.

Enhanced ortho-selective t–butylation of phenol over sulfonic acid functionalized mesopore MTW zeolites

Novel organo-inorganic hybrid materials(MTW-x-SO_(3)H) have been fabricated by immobilizing 3-mercap topropyltriethoxysilane onto mesopore MTW zeolites, which is treated via a simple oxidation process with hydrogen peroxide as the oxidant to transform sulfhydryl group into sulfonic acid group. The organic sulfhydryl groups are covalently bonded to the external surface of MTW zeolites through the condensation between siloxane arising from organic fragments with silanol groups on the surface of MTW zeolites, the hybrids contain sulfonic acid group within the external surface of MTW zeolites and an opened mesoporous system in the matrix of MTW zeolites, which provide enough accessible Brùnsted acid sites for the alkylation between phenol with tert-butyl alcohol. Through this methodology it's possible to prepare multifunctional materials where the plenty of mesopores are benefit for the introduction of larger numbers of sulfonic acid groups that contributes to activity during reactions, resulting in high activity(>55%) of MTW-4-SO_(3)H and desired selectivity(>56%) of 2-TBP(2-tert-butyl phenol) in the alkylation between phenol with tert-butyl alcohol.

Tear inflammation related indexes after cataract surgery in elderly patients with type 2 diabetes mellitus

BACKGROUND Quantitative studies on the changes in inflammation-related content in tears,especially the effect of diabetes,are lacking.In this study,we measured the preoperative and postoperative tear inflammatory mediator levels in cataract patients,focusing on the expression of inflammatory factors in postoperative cataracts in the diabetic,and investigated the effect of drugs on the control of postoperative inflammation.AIM To study the expression of inflammatory factors in elderly people with type 2 diabetes after cataract surgery.METHODS Patients with a mean age of 70.3±6.3 years were divided into group A(composed of elderly patients with cataracts and type 2 diabetes,n=20 eyes)and group B(patients with age-related cataract,n=20 eyes).Their tears were collected before each operation and on days 1 and 3,and weeks 1,2,3,and 4 post-surgery.Saline(150μL)was dropped into the conjunctival sac of the surgical eye,followed by oculogyration in four directions.The fluid in the conjunctival sac was extracted using a sterile syringe and stored in Eppendorf tubes at-80°C until measurement.The expression levels of matrix metalloproteinase-2(MMP-2),MMP-9,tissue inhibitor of metalloproteinase-1(TIMP-1),TIMP-2,interleukin-6(IL-6),and IL-20 in tear fluid were measured using enzyme-linked immunosorbent assays.RESULTS The postoperative expression levels of MMP-2,MMP-9,TIMP-2,IL-6,and IL-20 in group A were significantly higher than those in group B,whereas the concentration of TIMP-1 in group A remained lower than that in group B.The levels of MMP-2 and IL-6 in both groups continuously increased until the peak in the first postoperative week,and then gradually decreased over the next three weeks.Ultimately,MMP-2 declined to a lower level than that preoperatively at week 4,but IL-6 decreased to the same level as that preoperatively.The level of MMP-9 peaked in the first two weeks postoperative and then returned to the same level as 1-day post-operation.The concentration of TIMP-1 post-operation remained constant at a lower level than before surgery,and TIMP-2 Levels remained stable in both groups.IL-20 content started to increase in the third week after surgery.CONCLUSION Inflammatory factor levels in tears fluctuated before and post-operation,which indicated more severe postoperative inflammation in the first two weeks.

Reduction of ice adhesion on nanostructured and nanoscale slippery surfaces

Ice nucleation and accretion on structural surfaces are sources of major safety and operational concerns in many industries including aviation and renewable energy.Common methods for tackling these are active ones such as heating,ultrasound,and chemicals or passive ones such as surface coatings.In this study,we explored the ice adhesion properties of slippery coated substrates by measuring the shear forces required to remove a glaze ice block on the coated substrates.Among the studied nanostructured and nanoscale surfaces[i.e.,a superhydrophobic coating,a fluoropolymer coating,and a polydimethylsiloxane(PDMS)chain coating],the slippery omniphobic covalently attached liquid(SOCAL)surface with its flexible polymer brushes and liquid-like structure significantly reduced the ice adhesion on both glass and silicon surfaces.Further studies of the SOCAL coating on roughened substrates also demonstrated its low ice adhesion.The reduction in ice adhesion is attributed to the flexible nature of the brush-like structures of PDMS chains,allowing ice to detach easily.

A Novel Parallel Computing Confidentiality Scheme Based on Hindmarsh-Rose Model

Due to the inherent insecure nature of the Internet,it is crucial to ensure the secure transmission of image data over this network.Additionally,given the limitations of computers,it becomes evenmore important to employ efficient and fast image encryption techniques.While 1D chaotic maps offer a practical approach to real-time image encryption,their limited flexibility and increased vulnerability restrict their practical application.In this research,we have utilized a 3DHindmarsh-Rosemodel to construct a secure cryptosystem.The randomness of the chaotic map is assessed through standard analysis.The proposed system enhances security by incorporating an increased number of system parameters and a wide range of chaotic parameters,as well as ensuring a uniformdistribution of chaotic signals across the entire value space.Additionally,a fast image encryption technique utilizing the new chaotic system is proposed.The novelty of the approach is confirmed through time complexity analysis.To further strengthen the resistance against cryptanalysis attacks and differential attacks,the SHA-256 algorithm is employed for secure key generation.Experimental results through a number of parameters demonstrate the strong cryptographic performance of the proposed image encryption approach,highlighting its exceptional suitability for secure communication.Moreover,the security of the proposed scheme has been compared with stateof-the-art image encryption schemes,and all comparison metrics indicate the superior performance of the proposed scheme.

Association between ACTN3 R577X genotype and risk of non-contact injury in trained athletes:A systematic review

Purpose:The aim of this study was to review,systematically,evidence concerning the link between the ACTN3 R577X polymorphism and the rates and severity of non-contact injuries and exercise-induced muscle damage in athletes and individuals enrolled in exercise training programs.Methods:A computerized literature search was performed in the electronic databases PubMed,Web of Science,and SPORTDiscus,from inception until November 2020.All included studies compared the epidemiological characteristics of non-contact injury between the different genotypes of the ACTN3 R577X polymorphism.Results:Our search identified 492 records.After the screening of titles,abstracts,and full texts,13 studies examining the association between the ACTN3 genotypes and the rate and severity of non-contact injury were included in the analysis.These studies were performed in 6 different countries(Spain,Japan,Brazil,China,the Republic of Korea,and Italy)and involved a total participant pool of 1093 participants.Of the studies,2 studies involved only women,5 studies involved only men,and 6 studies involved both men and women.All the studies included were classified as highquality studies(≥6 points in the Physiotherapy Evidence Database(PEDro)scale score).Overall,evidence suggests there is an association between the ACTN3 R577X genotype and non-contact injury in 12 investigations.Six studies observed a significant association between A CTN3 R577X polymorphism and exercise induced muscle damage:2 with non-contact ankle injury,3 with non-contact muscle injury,and 1 with overall non-contact injury.Conclusion:The present findings support the premise that possessing the ACTN3 XX genotype may predispose athletes to a higher probability of some non-contact injuries,such as muscle injury,ankle sprains,and higher levels of exercise-induced muscle damage.

利用LR 115 2B研究7.4GeV质子束轰击铅靶的散裂中子源外表面中子分布

利用LR 115 2B探测器研究了8cm× 2 0cm的铅靶在 7.4GeV质子的轰击下 ,散裂中子在实验装置外表面的分布 ,对实验结果进行了模拟解析 ,同时利用中子活化法验证了LR 115 2B探测结果及理论模拟结果利用LR 115 2B探测器研究了8cm× 2 0cm的铅靶在 7.4GeV质子的轰击下 ,散裂中子在实验装置外表面的分布 ,对实验结果进行了模拟解析 ,同时利用中子活化法验证了LR 115

集体智慧研究综述及其社群化制造应用探索

为了系统化地理解和发展集体智慧理论,并进一步探索如何利用集体智慧理论解决制造领域特别是社群化制造领域中的工程问题,在统计2000年至今的中英文集体智慧相关研究文献基础上,进行了相关概念辨析,并根据集体智慧系统中个体属性差异将其分为人类系统、社会性动植物系统以及人工智能体系统集体智慧三类,然后按“实现框架关键技术工程应用”的主线对三类集体智慧的理论研究进展及其在制造领域的应用研究现状进行了综述。研究结果表明,集体智慧理论在社群化制造各环节均有广泛应用前景。据此提出了集体智慧概念集成框架,并探讨了其在社群化制造领域的初步应用方案和需要解决的问题。

散裂中子源(3.7GeVp+Pb)靶散裂研究中Lavsan探测器的应用

利用Lavsan探测器探测了直径 8cm、厚 2 0cm的铅靶中散裂反应的分布规律 ,并利用理论对实验结果进行了模拟解析 。

太阳能相变蓄能通风系统实验研究

针对太阳能通风的不稳定性和不可控性,提供一种利用太阳能作为热源,相变蓄热材料在日间进行蓄热,夜间利用储存热量热压通风的新型系统,使建筑物达到理想的通风效果。通过分别对相变温度为63℃、44℃的相变蓄热材料进行通风实验,得到不同相变温度下系统夜间通风量变化特性。结果表明,采用相变温度分别为63℃、44℃的相变蓄热材料棕榈酸和月桂酸,太阳能通风系统在夜间通风10 h累计通风量分别为806.6 m3、615.4 m3,单位面积水平集热面通风量分别为53.8 m3/h、41 m3/h。使用棕榈酸的通风系统效果要优于使用月桂酸。提出的太阳能通风屋顶结合相变蓄热系统能有效的强化建筑物夜间自然通风,改善建筑室内热环境,减少空调用能。

基于数学形态学的围棋形势判断算法

形势判断是人类棋手必不可少的抽象概念,计算机围棋可以建立此概念以提高搜索效率.该文在数学形态学的形式化基础上探讨了对围棋实地和外势进行估算的过程,并结合实战对局评价了此算法的性能,指出了此算法的应用价值.

EMD与NARX神经网络的风电场总功率组合预测

探索构建对风电场总功率进行直接预测的高精度组合预测算法。考虑到风速的非平稳性导致风电总功率表现为非平稳时间序列,采用NARX神经网络作为初步预测模型,提出了经验模态分解与NARX神经网络相结合的混合预测模型。对风电场总功率非平稳时间序列进行经验模态分解,得到不同频带本征模式分量的平稳序列。对不同频带的平稳分量建立相应的NARX神经网络预测模型,并将各分量模型的预测值进行等权求和得到最终预测值。此外,为研究不同时间间隔对预测结果的影响,采用某大型风电场时间间隔为5 min与15 min的数据进行实验。预测结果表明,提出的组合预测模型适合于总功率预测,其预测效果比传统模型的效果更佳,且时间间隔为5 min的数据比时间间隔为15 min的数据预测精度更高。

85Al2O3/SiC纳米复合陶瓷的表面抛光性能

以工业中广泛使用的85氧化铝陶瓷原料粉为原料,加入纳米碳化硅,通过控制无压埋烧制备了85Al2O3/SiC纳米复合陶瓷,研究了其表面抛光行为,讨论了纳米碳化硅对复合陶瓷表面抛光性能的影响.结果表明,纳米复合陶瓷表现出显著优于基体材料的表面抛光响应,在同样的磨料尺寸下,复合陶瓷能够得到更好的表面抛光质量.SEM分析表明,纳米碳化硅的加入使材料的抛光去除机制发生了改变,由大范围的深层晶粒拔出变为小尺寸的浅层去除和塑性变形.