摘要：郑可是我国著名的雕塑家、教育家、现代艺术设计的先驱,还是包豪斯艺术在中国早期的传播者与实践者。他于1927年至1934年在法国留学7年,着重于雕塑与设计等方面的学习探索,试图通过艺术和设计研究来实现富民强国的时代理想。本文从“‘艺术救国’之实用性理念”“包豪斯艺术的学习与接受”“对包豪斯艺术的传播与实践”“切实推动中国工艺美术向现代设计的转化”四个层面展开讨论,以反映郑可对包豪斯艺术理念在中国的践行、推动与传播,同时勾勒出艺术家为“中国工艺美术”向“现代艺术设计”的转化过程所做出的杰出贡献。

摘要：In this work,a techno-economic study for the solvent based extraction of methacrylic acid from an aqueous solution is *** involved phase equilibrium calculations in process design are verified by measured experimental ***,experiments are conducted with different solvent candidates to measure LLE(liquid–liquid equilibrium)data and to establish the effects of extraction temperature and dosage of ***,the binary interaction parameters for the UNIQUAC model to be used for equilibrium calculations are fine-tuned with measured ***,a process for the solvent based extraction of methacrylic acid recovery is designed and verified through simulation with the regressed UNIQUAC model *** optimal configuration of the process flowsheet is determined by minimizing the total annualized *** the three solvent candidates considered-cyclohexane,hexane and toluene-the highest efficiency and the lowest total annualized cost is found with toluene as the solvent.

摘要：Nanocarrier-mediated photodynamic therapy(PDT)has attracted extensive attention due to its locoregional therapeutic effect,minimal toxicity to normal tissues,and activation of immune system ***,it is still unclear how the physicochemical properties of nanocarriers affect their PDT therapeutic efficacies,which could be very different from those for ***,to demonstrate the effect of PEG density on PDT efficacy,we synthesized a series of random polyphosphoesters(PPEs)with different PEG contents by regulating the molar ratios of these monomers,and then these PPEs were used to prepare chlorin e6(Ce6)-loaded polymeric nanoparticles with tunable PEG ***,the PDT efficacies of these nanoparticles were carefully and comprehensively *** demonstrate that the moderate PEG density(3.01 PEG/nm^2)of nanocarrier exhibited the best PDT therapeutic efficacy in a mouse model of pancreatic cancer due to its efficient balance of prolonged circulation and tumor cellular uptake.

摘要：^(99)Tc is a long-lived radionuclide present in large amounts as TcO_(4)^(-)-anion in used nuclear *** removal from the waste stream is highly desirable because of its interference capability with actinide separation and its volatile nature during the nuclear waste vitrification *** the progress achieved in the past few years,the design of anion-exchange materials with optimized Tc uptake property and improved stability under the extreme condition is still a research goal beneficial for reducing the volume of secondary radioactive solid waste generated during the waste partitioning ***,their design philosophy remains elusive,with challenges coming from charge repulsion,steric hindrance,and insufficient reactive sites within the ***,we present a design philosophy of cationic polymer network materials for TcO_(4)^(-)separation by systematic precursor screening and structure *** affords an optimized material,SCU-CPN-2(SCU=Soochow University),with extremely high positive charge density while maintaining high radiation ***-CPN-2 exhibits a record high adsorption capacity1,467 mg/g towards the surrogate ReO_(4)^(-)compared to all anion-exchange materials reported up to *** addition to ultrafast adsorption kinetics,SCU-CPN-2 has remarkable selectivity over nitrate and sulfate,and facile recyclability.

摘要：目的:吸气式高速飞行器在助推阶段需要对进气道采取保护措施,而应用传统的圆锥体载荷式整流罩存在体积大、质量重等缺陷。为避免载荷罩的空间雍余,基于激波干扰理论,本文旨在提出一种通用型可实现气动自分离的整流罩设计方法,并探讨设计的两组构型在两个弹道特殊状态点的气动力和气动热特性,以及研究构型的适用性和基本气动性能。创新点:1.通过激波干扰理论模型方程,推导出环境变量与构型基本尺寸之间的关系;2.建立气动设计模型,成功求得助推阶段和整流罩分离状态点的气动特性;3.新构型减轻了整流罩系统重量,实现了自分离,简化了机械结构系统。方法:1.通过理论推导,得到飞行器头锥长度和进气口尺寸变化对整流罩构型设计的影响;2.通过数值计算,得到异形整流罩及头锥附近流场分布受设计型面的影响以及产生的适应性气动力。结论:1.整流罩在分离状态可产生负升力,有自动打开的趋势;2.减小整流罩的设计长度有利于气动减阻和降低峰值热流;3.整流罩前缘的极限热流约为13 MW/m^2,在所选复合材料的受热范围内。

摘要：In a recent publication [1], these images in Figures 6(b, c)(^NPEG-NPCe6 group), S7, S9 and S10 were inadvertently taken the incorrect images in the production. The corrected versions are shown below. And, the quantification of Ce6 fluorescence(as performed in Figure 6(c)) was also corrected(Figure S12).

摘要：In situ studies of catalysts play valuable roles in observing phase transformation, understanding the corresponding surface chemistry and the mechanism of the reaction. In this paper, ceria promoted cobalt oxide was prepared by the calcination method and investigated for the CO oxidation. The microstructure and morphology of CeO2-Co3O4 were investigated by the Scanning Electron Microscope, High-resolution transmission electron microscopy, Raman and X-ray photoelectron spectroscopy characterization. The effect of CeO2 doping on Co3O4 for CO oxidation was characterized by in situ X-ray Diffraction (in situ XRD) and in situ diffuse reflectance infrared Fourier transform spectroscopy (in situ DRIFTS). In situ XRD was carried out under H2 atmosphere to evaluate the redox property of catalysts. The results indicated that the ceria doping can enhance the reducibility of Co2+ and promote the Co3+-Co2+-Co3+ cycle, owing to the oxygen replenish property of CeO2. Furthermore, adsorbed carbonate species on the surface of CeO2-Co3O4 were investigated by in situ-DRIFTS experiment. It was turned out that carbonate species on ceria promoted cobalt oxide catalysts showed different IR peaks compared with pure cobalt oxide. The carbonate species on ceria promoted catalyst are more active, and similar to free state carbonate species with weak bonding to catalyst surface, which can effectively inhibit catalyst inactivation. This study revealed the mechanism of ceria promoting CO oxidation over cobalt oxide, which will provide theoretical support for the design of efficient CO oxidation catalysts.

摘要：随着数字技术的不断发展和数字设计的多样化呈现,艺术与科技的结合已经变成了现代艺术创作的新趋势。设计师巧妙地利用人类的五感和当代流行的传媒手段,将观众、展示作品和展示空间紧密结合,使观者在有限的时间和空间中对作品有更深的理解,并产生情感的共鸣。文章以元宵佳节时的环境音以及代表性非遗——石灯彩为研究对象,通过交互类数字艺术手段和非遗与声音结合的创作思路进行分析,探讨如何应用声音可视化设计手段解决非物质文化遗产传承面临的传播范围有限及其知名度低的问题。

摘要：A new linac injector CSR-liNAC for the Cooler Storage Ring of the Heavy Ion Research Facility in Lanzhou(HIRFL-CSR) is proposed to improve the performance of the HIRFL. As a key component of the CSRliNAC, the 108.48-MHz radio frequency quadrupole(RFQ) is under design at the Institute of Modern *** ions with mass-to-charge ratios of 3–7 will be accelerated from 4 to 300 keV/u by the RFQ. In the beam dynamics design, the New Four-Section Procedure is adopted to improve the transmission efficiency and obtain a compact structure. In this paper, a transmission efficiency of 98.0% in the 3.07-m-long cavity was obtained. The Interdigital H-type structure is employed because of its mechanical stability and high shunt impedance. The RF performance of the cavity is investigated by the electromagnetic simulation. The optimized results of the electric field to meet the beam dynamics requirements are presented in this paper.

摘要：混凝土介质中多点同时或彼此微差爆炸可产生复杂的地冲击波叠加聚集效应,从而使特定作用区域内的地冲击波压力显著增强,大大提升爆炸的毁伤威力。为获取多点爆源不同排布方式下爆炸聚集效应及地冲击传播衰减规律,进行了混凝土中单点和七点聚集爆炸的现场和数值模拟试验,基于正交设计方法和灰色系统理论对多点起爆参数进行了优化设计,建立了比例装药间距、比例有源装药高度和比例起爆微差等因素与不同爆心距下峰值压力间的灰色关联度系数及灰色关联度,确定了起爆参数的优选组合,并开展了数值模拟试验检验。分析结果表明:影响地冲击聚集效应的主要因素为比例装药间距,其次为比例起爆微差,最次为比例有源装药高度。在本模拟试验情况下,采用优化的起爆参数时,即在比例装药间距为0.549 m/kg^(1/3)、比例起爆微差为0.239 m/kg^(1/3)和比例有源装药高度为0 m/kg^(1/3)时,地冲击波聚集效应达到最佳,最大可达单点同等装药量产生的地冲击压力的4.7倍。