摘要：High-entropy alloys(HEAs),which were introduced as a pioneering concept in 2004,have captured the keen interest of nu-merous ***,in this context,can be perceived as representing disorder and *** contrast,elemental composi-tions within alloy systems occupy specific structural sites in space,a concept referred to as *** accordance with Shannon entropy,structure is analogous to ***,the arrangement of atoms within a material,termed its structure,plays a pivotal role in dictating its *** addition to expanding the array of options for alloy composites,HEAs afford ample opportunities for diverse structural *** profound influence of distinct structural features on the exceptional behaviors of alloys is underscored by numer-ous *** features include remarkably high fracture strength with excellent ductility,antiballistic capability,exceptional radi-ation resistance,and corrosion *** this paper,we delve into various unique material structures and properties while elucidating the intricate relationship between structure and performance.

摘要：近现代以来,随着我国高等美术教育的功能转变、体制确立以及“美术革命”和“革命美术”思潮的推动,中国传统美术实现了现代转型。本文从传统美术功能的现代转变、传统美术的学科化发展以及传统美术教学方法的现代革新三方面切入,揭示二者之间存在的三重维度影响和促进关系。

摘要：This paper aims to present the configuration design approach and the energy management strategy （EMS） of a series-parallel hybrid electric transit bus （SPHEB） jointly developed by Shanghai Automotive Industry Co. Ltd. （SAIC） and Shanghai Jiao Tong University （SJTU）, China. A major feature of this SPHEB is that a novel manual transmission is designed to switch the powertrain configuration between series and parallel types. To reduce the fuel consumption as well as sustain the battery state of charge, an EMS including seven energy flow modes is designed and applied to this SPHEB. Governed by this EMS, the engine is maintained to operate in high efficiency regions. The experimental test carded on the transit bus city driving cycle is described and analyzed. The experimental results demonstrate the technical feasibility and fuel economy of this approach.

摘要：量子元胞自动机(Quantum-dot Cellular Automata,QCA)以其功耗低、纳米级设计、运算速度高等特点被认为是一门新兴技术,在不久的将来有望取代CMOS工艺,用于量子计算机的电路设计.近年来,在QCA电路中有很多使用三输入择多门(M3)和三输入异或门(XOR^(3))设计的全加器(Full Adder,FA).本文以这两种逻辑门为基础,结合QCA电路特有的时钟特点,设计了三种新型的n位全加器(FA1,FA2,FA3).FA1只使用了一个1位全加器,它的元胞的数量和电路面积比已发表的8位全加器至少减少了78%和90%,但一个时钟周期只能完成1位计算,延迟较大;FA2的元胞的数量和电路面积比已发表的8位全加器至少减少了47%和63%,可以在一个时钟周期内完成2位计算;FA3在一个时钟周期内可以进行4位计算,延迟最小.FA1、FA2和FA3作为n位全加器,随着全加器位数的增加,它们的元胞的数量和电路面积是不会改变的,这是以往设计所不能实现的.

摘要：针对目前梁柱刚性连接耐震型节点承载力研究过于片面的问题,提出多高层建筑梁柱刚性连接耐震型节点承载力计算方法。该方法设计筑梁柱刚性连接耐震型节点核心区仅添加钢纤维、仅添加箍筋和同时添加钢纤维与箍筋3种类型,并依据钢纤维体积率和箍筋率不同制作9个试件,以该9个试件为试验对象,设计试验加载方案和测点分布后,利用有限元软件构建多高层建筑梁柱刚性连接耐震型节点试件模型,并利用该模型模拟其试验加载方案,同时通过计算多高层建筑梁柱刚性连接耐震型节点试件的T型钢抗弯承载力、螺栓承载力以及柱翼缘承载力等实现多高层建筑梁柱刚性连接耐震型节点计算。试验结果表明:本文方法计算梁柱刚性连接耐震型节点钢腹板承载力与其实际承载力数值吻合度极高,计算结果较为精准;可有效计算不同核心区添加钢纤维、箍筋等试件的受剪承载力、受弯承载力,同时利用有限元云图可清楚呈现梁柱刚性连接耐震型节点不同承载力分布情况。

摘要：针对现有薄壁结构存在比吸能不高、压缩力效率较低的问题,以蜂窝为原型,模拟蜂窝多级嵌套结构,进行仿生结构优化设计。为了更好地探究形状参数对吸能能力的影响,进一步以相对旋转角度及加强柱直径为设计变量,设计了共20种仿蜂窝多级薄壁结构。运用3D打印技术,制备了尼龙材质的仿蜂窝多级薄壁结构样件,并进行准静态压缩试验。最后,对比分析了数值模拟结果与试验结果,得出以下结论:本文吸能能力最强的模型为YMT20-3.6,比吸能达到了10.87 J·g^(-1),较初始模型YMT0-0提高了约86%;旋转角度越大,加强柱直径越大,模型截面面积分布越均匀,模型变形模式也趋于对称,其能量吸收能力也更强;较大的旋转角度拥有更优异的吸能能力,但是其压缩力效率较小。增大模型加强柱直径能够减少旋转角度对压缩力效率的影响,提高模型的压缩力效率,从而得到吸能能力强、压缩力效率高的薄壁结构。

摘要：The super-high speed high temperature superconductor （HTS） maglev evacuated tube transport （ETT） is a promising transport mode for the future. As a key component of the HTS maglev vehicle, the permanent magnet guide- ways （PMGs） with different geometrical configurations and iron yoke widths are analyzed by finite element method （FEM）. The levitation force of a single onboard HTS maglev device over the designed PMG at different field cooling heights （FCH） is measured by magnetic levitation measurement system. Based on the designed PMG and experimental results, a preliminary scheme of subterranean super-high speed HTS maglev ETT is described in this paper. The HTS maglev ETT is mainly composed of an evacuated tube, HTS maglev vehicle, PMG, propulsion system, station, emergency rescue system, etc. In addition, a subterranean tube that consists of foundation tube and vacuum airproof layer is introduced. In order to convert the stress caused by the air pressure difference between inside and outside of the vehicle, a multi-circular vehicle body is designed. The vehicle is driven by a linear motor propulsion system under the control of a ground controlling system. The scheme of long-distance super-high speed passenger transportation is accomplished by the connection of different vehicles.

摘要：High-entropy alloys(HEAs)contain multiple principal alloying elements,but usually with simple crystal *** are structurally complex phases,but are generally dominated by only one ***,nearequiatomic high-entropy quasicrystals have rarely been reported because they are difficult to prepare experimentally and predict ***,the preparation and crystal structures of near-equiatomic high-entropy quasicrystals have drawn much *** report a quinary decagonal quasicrystal(DQC)with near-equiatomic alloying elements in Al20Si20Mn20Fe20Ga20 melt-spun ribbons,which is the first to our ***,the structural features of the DQC are characterized in *** configurational entropy of both the alloy and DQC satisfies the entropy-based criterion for HEAs,suggesting a high-entropy *** findings provide a new strategy to develop high-entropy quasicrystals.

摘要：数字劳工、情感劳动、情感经济成为数字时代学界争议不休的话题,并陷入了“剥削说”与“解放说”二元对立的话语陷阱。布尔迪厄的场域资本论作为一种元理论与框架,尤其是对文化资本、社会资本与经济资本的动态可转换的阐释,对分析情感劳动向情感经济转化具有理论的适当性与现实的解释力。根据布尔迪厄对三类资本的定义,可以发现粉丝的“情感劳动”更多是通过网络创作等形式生产的数字符号,属于情感经济生产层面的文化资本;再通过各类平台的社群网络进行讨论、交流等,进而获得个人认同以及集体认同的社会资本,属于情感经济流通层面;而获得认同的符号化文本以及周边产品,就会激发粉丝的购买、打赏,或吸引广告等,促进平台和粉丝创作的商业变现,属于情感经济的转化层面。然后,粉丝的消费行为又会反过来进一步激励粉丝的生产劳动,这样就完成了从生产到流通到转化再到生产的循环,形成情感劳动向情感经济转换的内在动力机制。

摘要：针对基金项目申请集中接收期形式审查任务重、申请书审查要点多、申请人未给予足够重视等问题,基于Python设计开发国家自然科学基金形式审查系统。该系统包括单项检测和批量检测两大功能模块,可以对基金申请书的13个部分、近30项指标进行自动检测,减轻了依托单位形式审查压力,提高了申请书形式审查通过率,在一定程度上解放了科研人员双手,解放了依托单位科研管理者双手。