摘要：The architectural design competition remains a widely accepted method to advance design innovation, creativity, theoretical discourse, and the profession. In the rearm of healthcare facility design, by contrast, clients and their sponsoring organizations seldom utilize this method. The reasons for this are many, and continue to stand in stark contrast to a growing body of evidence-based research and design （EBREtD）that is potentially of value in improving performance-based dimensions-esthetic and otherwise-of healthcare facilities globally. A comparative analysis of the entrants to a recent U.S. completion was conducted. Based on the results of this anatysis, a two-phased healthcare facility design competition paradigm is put forth that is premised on the assumption that the intuitive dimensions of design creativity can be further advanced by means of a weft timed and thoughlfur injection of quantitatively based knowtedge pertaining to patient, family, staff, and organizational concerns and priorities. This proposal＇s limitations, and future opportunities, are discussed.

摘要：To implant radioactive seeds through a needle precisely and safely, a novel multi-DOF surgical robotic system is presented in this paper for percutaneous prostate intervention through the patient’s perineum under real-time ultrasound image guidance. The proposed robot, which is designed with 9-DOF, consists of a 3-DOF automatic location platform for position adjustment, 2-DOF for automatic ultrasonic probe adjustment mounted with electromagnetic trackers, and 4-DOF for manually adjusting the guided template. Meanwhile, a new registration method based on the quaternion algorithm and least square method is developed, and the needle insertion is performed under the real-time guidance of a navigation system. Furthermore, the robot system has undergone some preliminary experiments with a laser tracker to evaluate the repeatability and accuracy of the robot system. The location error of the puncture needle tip can be controlled under 0.7 mm in air for the whole robotic system. The acquired results endorse the precision of the robot system for prostate seed implantation brachytherapy. © 2017, Tianjin University and Springer-Verlag GmbH Germany.

摘要：《运河谣》是由国家大剧院2012年重点打造的一部民族歌剧,由作曲家印青作曲,黄维尼、董妮编剧,廖向红导演,雷佳、王宏伟、王丽达等歌唱家主演。在首演之后的十多年中,国家大剧院多次复排该剧,不仅上座率较高,具有较好的市场效应,而且还受到专业音乐界的认同。

摘要：在分析大思政教育与艺术教育的内在联系及现代艺术歌曲的独特价值基础上,本文指出了当前现代艺术歌曲演唱教学存在的问题,而后提出大思政视域下现代艺术歌曲演唱课堂教学的创新策略,即将思政元素与艺术歌曲深度融合,通过价值导向、文化传承、时代性融入等方式,提升教学内容的思想性和艺术性;采用情境教学法、项目式学习、翻转课堂等多元化教学方法,激发学生的学习兴趣和主动性;构建多元化评价体系,注重学生的综合素质提升。这些创新举措不仅可以提升学生的艺术技能,而且能够培养学生的思政素养、社会责任感和服务意识,从而实现艺术教育与社会实践的有机结合。

摘要：许多大城市都有艺术家、诗人、作家、音乐家、舞者等聚集、创作的区域。这些地方往往处于城市租金较便宜的地带。对于1980年代的纽约而言,曼哈顿下城就是这样的一个区域。曼哈顿下城地理上指北至14街,南至曼哈顿金融区,西至哈德孙河,东至东河边的D大道一带。这里成为了20世纪七八十年代艺术家的舞台,他们的生活如果简单地概括,是一首“波西米亚狂想曲”,而他们的艺术则跨越了多种媒介,使得许多艺术作品成为商品和资本流通、消费以及欲望本身的模型和隐喻还有无数几乎无法归类的部分,以档案或影片的形式被保存了下来。

摘要：今年夏天,伊娃·黑塞(Eva Hesse)的作品《延展的延展》(Expanded Expansion)在纽约古根海姆美术馆重新面世,距离上次展出已经过去35年.与它一道展出的,还有一组黑塞的小型实验作品,以近似于在艺术家工作台上的方式展示,显露黑塞工作状态的一角.同时展出的还有未剪辑的档案视频、音频,包括工作室中的艺术家、艺术史学家和女性主义活动家辛迪·内姆瑟(Cindy Nemser)对艺术家的访谈等.古根海姆美术馆为几乎被认为"无法展出的"《延展的延展》的修复过程制作了一则短纪录片.

摘要：In order to solve the problem of high missed rate of camellia fruits and high damage rate of flower buds during vibratory picking,through the study on the biological characteristics of camellia tree,the crown of camellia tree was divided into upper and lower canopy at the maximum canopy diameter.A kind of vibration plate type camellia fruit picking machine was *** structure and working principle of the whole machine were *** the analysis of the factors of camellia fruit abscission,it is concluded that frequency,amplitude and working time are the main factors affecting the magnitude of inertia *** preliminary research and coupling simulation,the horizontal range of each factor is determined:operation time is 5 s,10 s,15 s,frequency is 3 Hz,5 Hz,7 Hz and amplitude is 50 mm,60 mm,70 *** tests were carried out on the upper and lower canopies successively,and the comprehensive scoring method was used to analyze the orthogonal test *** results showed that the optimal combination of working parameters for picking camellia in the upper canopy was A3B3C2,that is,the operation time was 15 s,the amplitude was 70 mm and the frequency was 5 *** this condition,the missed picking rate of camellia fruits was 8.21%and the rate of flower buds damage was 9.12%.The optimal combination of working parameters for picking camellia fruits in the lower canopy was A3B1C3,that is,the operation time was 15 s,the amplitude was 50 mm and the frequency was 7 *** this condition,the rate of missing picking of camellia fruits was 6.84%and the rate of flower buds damage was 6.92%.

摘要：声表面波(SAW)器件以其优良的性能广泛应用于雷达、通讯和日常用品等领域.然而,随着器件工作频率的不断升高,温度对器件频率稳定性的影响也越来越严重.因此,研究声表面波器件的温度效应,并在变温情况下保持SAW器件的频率稳定性至关重要.论文采用增量型的拉格朗日方程分析受温度影响的声表面波频率漂移问题.用频率-温度系数(TCF)作为评价频率-温度行为的标准.设计了一个具有温度补偿层的双层SAW谐振器模型,降低了器件的频率-温度系数.通过尺寸优化,LiNbO_3-AlN结构的SAW谐振器在25℃(参考温度)下的频率-温度系数TCF接近0 ppm/℃.SAW谐振器的波长为4μm,谐振频率为1214.9 MHz.

摘要：This paper presents a novel four degrees of freedom(DOF) parallel mechanism with the closed-loop limbs, which includes two translational(2 T) DOF and two rotational(2 R) DOF. By connecting the proposed parallel mechanism with the guide rail in series,the 5-DOF hybrid robot system is obtained, which can be applied for the composite material tape laying in aerospace industry. The analysis in this paper mainly focuses on the parallel module of the hybrid robot system. First, the freedom of the proposed parallel mechanism is calculated based on the screw theory. Then, according to the closed-loop vector equation, the inverse kinematics and Jacobian matrix of the parallel mechanism are carried out. Next, the workspace stiffness and dexterity analysis of the parallel mechanism are investigated based on the constraint equations, static stiffness matrix and Jacobian condition number. Finally, the correctness of the inverse kinematics and the high stiffness of the parallel mechanism are verified by the kinematics and stiffness simulation analysis, which lays a foundation for the automatic composite material tape laying.

摘要：In order to satisfy the requirements of large workspace and high dexterity for processing equipment of oversized cylindrical boxes′spherical crown surfaces in the aerospace industry,a novel serial-parallel hybrid processing robot mechanism is *** degrees of freedom of the 5PUS-(2UR)PU parallel mechanism are obtained by using the screw *** inverse kinematics of the hybrid mechanism are analyzed and the velocity Jacobian matrix is ***,the constraints of the main factors influencing workspace of the mechanism are given,and the position and posture workspace are ***,the dexterity and stiffness performance of the mechanism is analyzed based on the Jacobian *** virtual prototype is established,and the theoretical calculation and simulation analysis of the hybrid mechanism with arc curve as the processing trajectory are carried out by using Matlab and Adams *** research results show that the mechanism can satisfy the requirements of large workspace and high dexterity of oversized cylindrical boxes′spherical crown surface processing,and has feasibility and practical application value.