摘要：The current research of supporting and transmission system in flywheel energy storage system(FESS) focuses on the low consumption design. However, friction loss is a non-negligible factor in the high-speed but lightweight FESS energy and momentum storage with mechanical-type supporting system. In order to realize the support system without mechanical loss and to maximize the e ciency of the flywheel battery, a permanent magnet biased magnetic bearings(PMBMB) is applied to the FESS with the advantages of low loss, high critical speed, flexible controllability and compact structure. In this frame, the relevant research of three degrees of freedom(3-DOF) PMBMB for a new type FESS is carried out around the working principle, structural composition, coupling characteristics analysis, mathematical model, and structural design. In order to verify the performance of the 3-DOF PMBMB, the radial force mathematical model and the coupling determination equations of radial two DOF are calculated according to an equivalent magnetic circuit, and radial–axial coupling is analyzed through finite element analysis. Moreover, a control system is presented to solve the control problems in practical applications. The rotor returns to the balanced position in 0.05 s and maintains stable suspension. The displacement fluctuation is approximately 40 μm in the y direction and 30 μm in the x direction. Test results indicate that the dynamic rotor of the proposed flywheel energy storage system with PMBMB has excellent characteristics, such as good start-of-suspension performance and stable suspension characteristics. The proposed research provides the instruction to design and control a low loss support system for FESS.

摘要：Mathematical models are disappointing due to uneven distribution of the air gap magnetic field and significant un- modeled dynamics in magnetic bearing systems. The effectiveness of control deteriorates based on an inaccurate mathematical model, creating slow response speed and high jitter. To solve these problems, a model-free adaptive control （MFAC） scheme is proposed for a three-degree-of-freedom hybrid magnetic bearing （3-DoF HMB） control system. The scheme for 3-DoF HMB depends only on the control current and the objective balanced position, and it does not involve any model information. The design process of a parameter estimation algorithm is model-free, based directly on pseudo-partial-derivative （PPD） derived online from the input and output data information. The rotor start-of-suspension position of the HMB is regulated by auxiliary bearings with different inner diameters, and two kinds of operation situations （linear and nonlinear areas） are present to analyze the validity of MFAC in detail. Both simulations and experiments demonstrate that the proposed MFAC scheme handles the 3-DoF HMB control system with start-of-suspension response speed, smaller steady state error, and higher stability.

摘要：以碎米粉为主料、大豆膳食纤维和抗性糊精为辅料,采用双螺杆挤压技术制备高膳食纤维重组米。运用混料试验设计优化原料配比,同时借助多元线性回归及二项式拟合建立综合评分指标与因素间的数学模型,预测最优高膳食纤维重组米配比。结果表明:最优配方为以混合粉总质量为基准,碎米粉添加量88.0%、大豆膳食纤维添加量8.0%、抗性糊精添加量4.0%,在此条件下制得的高膳食纤维重组米的综合评分为2.17±0.12,膳食纤维含量为9.61 g/100 g,高于高膳食纤维食品标准规定的6 g/100 g,且口感较好。

摘要：广告翻译的地位在经济发展全球化的推动下显得尤为重要。从语际转换的四个模式出发,即对应式翻译、平行式翻译、替换式翻译和冲突式翻译,探讨广告翻译策略,使广告译文不仅能完整传达源语广告的信息内容,而且突出广告语言本身的艺术性。

摘要：文章首先分析了当前艺术设计教学无法满足本民族审美需求的问题,进而引入"非物质文化视域"概念,阐述了非物质文化遗产中所包含的丰富的民族性审美趣味,力图将中国丰富的非物质文化遗产转化为可供艺术设计教学运用的资源,缓解艺术设计教学所面临的问题,并最终为构建具有中国民族特色的艺术设计学科提出建设性思路。

摘要：How a mural artist invents and builds deities inspired by the spiritual customs of Quanzhou艺术家文那,用壁画“造神”Inside a bustling wood carving workshop,a mighty god greets visitors by the *** by dozens of tinier Buddha statues,this half-finished wood sculpture stands *** an unobtrusively staid face and tentacles sprawling from the torso,it leans forward as if about to charge,exuding a dynamic energy rare for deity statues in China.

摘要：Through wool and raw honesty, needle felt artist Zhang Xian captures the unseen struggles of new mothers while reclaiming her own identity In 2018, as Zhang Xian lay in a delivery room alongside seven other women in labor, she noticed a mother-to-be trembling in pain,mirroring her own agony. The woman’s screams filled the room, her body shaking from the contractions. Then, in a sudden, haunting moment, the blanket covering the woman slipped, revealing that she was missing a leg.

摘要：描述了一种改进计时的基于65 nm CMOS工艺的6 bit流水线模数转换器(ADC)实例。采用4个通道均由一个标有刻度的全动态流水线式二分查找(PLBS)架构,并在折叠前端采用基于25%工作周期的计时同步方案,可将ADC转换率提高至3Gsample/s,其功率损耗为4.1 m W。ADC实测结果,在低输入频率条件下测得的无杂散动态范围(SFDR)和信噪失真比(SNDR)分别为44.1 d B和31.2 d B。与类似高速ADC相比,该设计将PLBS架构的速度提高了60%,同时也提高了ADC的功率效率。模数转换器原型核心电路面积为250μm×120μm。

摘要：商业建筑入口冷风的高渗透量对建筑运行能耗和人员热舒适造成了极大影响。为提升入口抵抗冷风渗透的性能,文中分析了寒冷地区商业建筑4种典型入口外部形式,并基于FLUENT平台的CFD数值模拟,对各类入口进行多风向的冬季风环境仿真计算。同时,提出“入口综合速度”作为入口风环境性能指标,以评价各入口类型在不同风向条件下的风环境性能。结果表明,入口迎风时,应优先选择凹入口,不宜采用平入口;入口背风时,应优先选择半凸近入口,不宜采用半凸远入口。此外,主导风向为90°、180°和270°的条件下,入口形式可任意选择;而风向多变条件下,凹入口风环境性能最佳,平入口最差。为此,提出了不同风向下的入口外部形式优选策略和提升方法。

摘要：葛兆光《中国思想史》认为由儒学代表的文明在宋代得以扩张并确立生活伦理同一性。此论阐述的乃是时代的宏观趋势,揆之具体的历史语境,宋代各种思想、信仰的关系则较为复杂。同为柳本尊信仰道场,南宋末期修建的大足宝顶山石窟相对唐末五代修建的安岳石窟,在造像题材中有意识地彰显孝亲观念。同时,自残、符咒等违背孝亲观念,带有挑战官方伦理、政治秩序的题材也未被摒弃。这一表面不合逻辑、自相矛盾的状况与儒释道三教合一信仰格局的形成及其对民间信仰的影响有很大关系。