Ultrafine Nanofiber Electrospinning and its Application in the Water Treatment

静电纺丝纳米纤维已经在过滤、传感、污染吸附、微纳能源等多个领域表现出了巨大的应用潜力，在这些应用中要求纤维的比表面积越大越好。纤维直径越小其比表面积越大，进一步细化纳米纤维，提高其均匀性和比表面积则已经成为了目前静电纺丝技术应用研究的重点。本文将针对高密度多射流静电纺丝和超细均匀纳米纤维的高效喷射制造开展研究工作，并探索纳米纤维在水体重金属污染吸附去除中的应用。 利用疏水铜网制备新型纺丝喷头，实现超细均匀纳米纤维的直接纺丝制造。疏水铜网网孔直径仅38µm，可建立多射流纺丝喷射模式，不仅降低纺丝射流直径，并增强了射流的鞭动不稳定，进一步减小了纳米纤维的直径且提高了均匀性。利用新型的...The electrospinning nanofiber has profound application potential in fields such as filtration, sensor and pollutant absorption technologies, as well as micro-nano energy. These applications require large specific surface area of the fiber for better performance, which is corresponding to small dimension of the fiber. The current researches on Electrospinning technology and application mainly focus...学位：工学博士院系专业：物理与机电工程学院_机械电子工程学号：1992007015365

The Relationship Between the Mother’s Self-Discrepancies and Parental Attitudes and the Daughter’s Self-Esteem and Self-Identity

本研究は母親の理想・現実自己との差異が養育態度，娘の自尊感情と自己形成との関連について，女子大学生とその母親を対象に検討した。母親には「性格」，「外見」，「人間関係」，「ライフスタイル」と「能力」の5領域について理想自己を5つ挙げてもらい，それぞれについて現実自己との差異を7段階で評価をしてもらった。また，養育態度尺度の質問紙に回答した。娘は自尊感情・自己形成の質問紙に回答した。母娘ペア52組の回答を分析した結果，「性格」の領域は養育態度の「責任回避的」と有意な正の相関を示した。「性格」と「能力」の領域は娘の自尊感情と有意な負の相関を示していた。また，重回帰分析を行ったところ，「性格」の領域は養育態度の「責任回避的」と娘の自尊感情を予測した。以上のことから母親の理想・現実自己との差異は，養育態度を害し，「責任回避的」や娘の自尊感情を低下する可能性があるではないかと考えられた。This study investigated the relationship between the mother’s self-discrepancies, parental attitudes, and her daughter’s self-esteem and self-identity. The participants targeted were the female undergraduates and their mothers. The mother participants responded to the Selves Questionnaire. They were asked to list up to five ideal selves in five different traits: “personality,” “appearance,” “relationship,” “lifestyle,” and “abilities.” And then rate to what extent their actual self is, compared to their ideal self on a 7-point scale. Next, the mother participants responded to a questionnaire about parental attitudes. Besides, the daughter participants responded to the questionnaires on self-esteem and self-identity. The data analysis was conducted on the final sample of 52 pairs of mother-daughter. The correlation analysis revealed that the mother’s self-discrepancies in personality significantly correlated with parental avoidance. Moreover, the mother’s self-discrepancies in personality and abilities significantly negatively correlated with the daughter’s self-esteem. In addition, the regression analysis revealed that the mother’s self-discrepancies in personality domain predicted parental avoidance and the daughter’s self-esteem. These results suggest that the mother’s self-discrepancies may influence the parental attitude, resulting in parental avoidance and lower self-esteem of the daughte

Vibration measuring methods of micro-machined tunning gyroscope

结合微机械陀螺仪和隧道效应的特点,提出了角振动微机械隧道陀螺仪的工作原理和结构设计方案。针对微机械陀螺的驱动和检测在面内和面外的结构特点,制定了图像处理法、静电力阶跃激励法和机械激励法等振动特性测试方法,在大气环境下分别对隧道陀螺仪驱动和检测模态的振动特性进行了测试,得到了相应的谐振频率,采用不同的方法得到的结果基本一致。Based on the characteristics of micro-machined gyroscope and tunneling effect,the principle of operation and structure design of angular vibrating tunneling gyroscope have been introduced.Given the vibration direction of driving and sensing mode in in-plane and out-of-plane,several vibration measuring methods,including image processing,electrostatic force step stimulation and mechanism excitation,were utilized to test the vibration characteristics of the driving and sensing model of the tunneling gyroscope under the atmosphere environment,the resonance frequency and quality factor of the tunneling gyroscope were also obtained.The same results are obtained by different methods.国家自然科学基金(50675222);国家863高技术研究发展计划(2007AA04Z308);福建省高校新世纪优秀人才支持计划(2007

Coupling Effect and the Structural Schematic Design of Decoupled Micromachined Vibrated Gyroscope

微机械振动陀螺是近几年发展起来的新型惯性元件 ,其误差源主要有微机械结构的 Brown-ian噪声、电路噪声、机械耦合误差及电子机械耦合误差等 ,这些误差严重影响陀螺仪的精度 .本文提出了单级隔离耦合和双级隔离耦合的结构方案 ,有效减小机械耦合误差 ,提高精度 .Silicon micromachined gyroscope is a new type of inertial sensor developed in recent years, whose error resource often comes from brownian noise, electronic noise, mechanical coupling effects and electromechanical crosstalk , etc. These errors would affect the precision of gyroscope greatly.The structural schemes of the single decoupled and double decoupled were proposed in this paper. The mechanical coupling error could be reduced greatly and be made more precise by applying these types of structure

Structural design and performance analysis on cantilever beam micromachined tunneling gyroscope

介绍了电子隧道效应在微机械陀螺仪中的应用,根据电子隧道效应的特点与要求提出了隧道陀螺仪的结构方案,利用ANSYS进行系统模态分析、静电-结构的耦合场分析及系统的性能分析。讨论了系统的机械灵敏度及隧道电流与隧道电极间隙的关系。Application of electron tunneling effect in micromachined gyroscope is described.According to the prerequisite and characteristic of tunneling effect,a scheme of gyroscope structure is presented.Modal analysis and electrostatic-structure coupling analysis and performance analysis are described by using ANSYS software.Mechanical sensitivity and relation between the tunneling current and the distance of electrode are discussed.福建省自然科学基金资助项目(A0110003);; 福建省教育厅B类科研项目(JB03283

Influence of Particle Damper Configurations on the Dynamic Characteristic for Gear Transmission System

齿轮传动正朝着高速、重载和高精度方向发展,对其动态性能要求越来越高。颗粒阻尼通过颗粒间、颗粒与阻尼器壁间的非弹性碰撞和摩擦作用耗能,具有减振效果; 显著、耐高温、各向同性、对原结构改动小等优点。利用有限元法对齿轮进行了有预应力的模态分析,通过齿轮系统动力学分析,研究单双齿啮合激励对齿轮传动的; 影响;同时建立齿轮传动离心场中颗粒系统耗能模型,将离散元法计算颗粒系统耗能和试验测试对比,分析阻尼器配置对齿轮传动系统动特性的影响。结果显示,阻; 尼器配置方案是影响齿轮传动系统动特性的一个重要因素,在阻尼孔中填充一定数量的颗粒,当阻尼器总体积相同且齿轮结构静刚度相差不大时,阻尼器个数越多颗; 粒系统能耗越大;当阻尼孔直径相同时,阻尼孔个数越多颗粒系统总能耗越小;当阻尼孔个数相同时,阻尼孔直径越大颗粒系统能耗越小。通过试验和仿真对比验证; 了模型的正确性,为颗粒阻尼在离心场中的应用提供重要的理论依据。The gear transmission is advancing towards high speed, heavy load and; high precision. The requirements for the dynamic performance of gear; system are urgently proposed. The particle damping dissipates mechanical; system energy through inelastic collisions and friction between; particles. It is an effective and simple measure for vibration; reduction. It has many advantages, such as isotropy, high temperature; resistance and less modification to the original structure. This paper; has conducted the prestressed modal analysis of gear system by the; finite element method. Based on the dynamics analysis of gear system,; the effect of single tooth and double teeth meshing incentive on gear; transmission has been analyzed. The energy dissipation model of particle; damping for gear transmission in centrifugal field has been established.; By contrasting theoretical analysis and the test, the effect of damper; configuration on dynamic characteristic of gear transmission system is; analyzed. The results show that damper configuration is an important; factor of the dynamic characteristic for gear transmission system.; Filling a certain number of particles, when the gears static stiffness; are similar and the total dampers volume are equal, the more damping; hole, the greater the total energy loss. When the damping holes diameter; are the same, the more number of damping hole, the smaller the total; energy loss. When the damping hole number is the same, the bigger the; diameter, the less the total energy loss. Experimental results are; consistency with the theoretical analysis. These results can provide; guidelines for the application of particle damping in centrifugal field.国家自然科学基金; 福建省重点科技专项; 中央高校基本科研业务费专项资金; 福建省高端装备制造协同创新中心资助项

新工科背景下《互换性与技术测量》教学模式改革研究

针对当前《互换性与技术测量》课程教学中存在的知识点相对独立、教学过程与工程应用存在较大脱节、难以满足"新工科"背景下课程与知识创新的要求等问题,文章以成果产出为导向,开展课程内容的分层与归类,引入知识模块进行知识梳理与教学组织的重构,实现知识讲授、小组讨论、动手实践等教学环节的有机融合,完成教学闭环,提升案例教学效果。此研究可以较好地推动课程与知识创新,具有较好的实践意义。厦门理工学院2016年度教育教学改革与建设项目（JGY201601

粉煤灰颗粒的微观分类探讨

鉴于目前关于粉煤灰颗粒的微观分类没有一个普遍、清晰、浅显的分类方法,且术语不够统一的情况,为方便学术交流提出了一个新的较普遍、清晰、浅显的原状粉煤灰颗粒分类方法,使粉煤灰颗粒微观分类方法更加完善