摘要：Hydroxyapatite(HA)nanoparticles and silver(Ag)nanoparticles are expected to enable desirable bioactivity and antibac-terial properties on biopolymer ***,interfacial adhesion between HA/Ag and the biopolymer is poor due to the large physicochemical differences between these *** this study,poly L-lactic acid(PLLA)powder was first surface-modified with bioactive polydopamine(PDA)in an alkaline ***,HA and Ag nanoparticles were grown in situ on the PDA-coated PLLA powder,which was then adhered to the porous bone scaffold using a selective laser-sintering *** showed that HA and Ag nanoparticles were homogenously distributed in the matrix,with enhanced mechanical *** body fluid bioactivity tests showed that the in situ grown HA-endowed scaffold shows excellent *** vitro tests confirmed that the scaffold exhibits favorable biocompatibility with human umbilical cord mesenchymal stem cells,as well as strong antibacterial activity against Gram-negative Escherichia ***,in vivo assays indicated that the scaffold promoted bone generation,with a new bone area fraction of 71.8%after 8 weeks’implantation,without inflammation.

摘要：As a wide bandgap power electronics device,the SiC MOSFET has a lot of advantages over the traditional Si *** the Si IGBT with the SiC MOSFET in the existing power electronics converter is an effective means to improve the performance and promote the upgrading of the traditional ***,in order to make full use of its advantages of the SiC MOSFET,the Si IGBT in the traditional power electronics circuit cannot be simply replaced by the SiC MOSFET,but the main circuit and the driver circuit need to be redesigned because the oscillation problem and the cross-talk problem caused by the parasitic parameter are very serious when the SiC MOSFET ***,considering the low cost and the short cycle requirement of the equipment development,it is often difficult to redesign the circuit hardware structure of all *** order to resolve this contradiction,a ferrite bead based method is proposed in this *** this method,without redesigning the hardware structure of the main circuit and the driver circuit,the SiC MOSFET can be used to replace the Si-based power electronics device directly,and the loss of the converter can be reduced with small ***,the effectiveness of the proposed method is proved by experiments.

摘要：极简主义物性艺术开创了以物为艺术的新范式,作为新美学的气氛美学可为其提供一种有别于分析美学解读的感知学阐释。在气氛美学看来,被极简主义当作艺术的物既不是作为媒介的物,亦非寻常的客体物,而是一种与感知相交织的气氛物。气氛物在存在论上是非自足的准物,是具有开放性即在具身空间中走出自身的迷狂物。因此,极简主义物性艺术十分重视感知者和具身空间对艺术的构成作用,其以物为艺术的背后是将感知者和具身空间纳入艺术本体范畴,并要求感知者以具身参与的方式去感知。正是据此,极简主义既实现了对知觉的还原,又达到了对艺术的还原,并在这双重还原中走出了形而上学主客二分的艺术窠臼,践行着气氛美学重返生活世界的旨归。

摘要：气氛美学作为新美学,其理论资源和阐释效力,还有必要进一步发掘。气氛美学的关键在于气氛,推进气氛美学的关键在于对气氛的突破性理解。现象学运动内部潜藏着气氛从隐到显之绽现的谱系:从现象学认识论的“视域气氛”,到基础存在论的“境域气氛”,再到具身现象学的“具身气氛”,最后是新现象学的“情感气氛”。该谱系既揭橥了被动发生的前述谓性气氛现象的四个面向,也表征着对作为发生现象学课题的“生活世界”的四种理解。因此,以气氛现象为核心的气氛美学实质上是借此克服美学形而上学,重返生活世界的发生现象学美学。重返生活世界的气氛美学,能够为打破艺术与生活界限的新前卫艺术提供一种完全有别于分析美学解读的“感知学”阐释。

摘要：为满足宠物物流箱在物流运输、宠物生活、生理监测和清洁卫生这四方面的需要,基于TRIZ理论提出了多功能宠物物流箱的设计方案。通过对宠物物流运输装置现状及问题的分析和对相关国家标准的参照,运用TRIZ理论进行拙见方案分析、技术参数确定、矛盾矩阵应用,最后利用矛盾矩阵所提供的发明原理完成了宠物物流箱的创新设计。设计的宠物物流箱的功能更为多样化,既优化了宠物的物流运输进程,又使宠物的生活条件得到了改善,是宠物在运输过程中健康生活的保障。

摘要：The paraventricular nucleus of the thalamus(PVT),which serves as a hub,receives dense projections from the medial prefrontal cortex(mPFC)and projects to the lateral division of central amygdala(CeL).The infralimbic(IL)cortex plays a crucial role in encoding and recalling fear extinction ***,we found that neurons in the PVT and IL were strongly activated during fear extinction *** PVT neurons inhibited extinction retrieval at recent time point(24 h after extinction),while activating them promoted extinction retrieval at remote time point(7 d after extinction),suggesting a critical role of the PVT in extinction *** the mPFC-PVT circuit,projections from IL rather than prelimbic cortex to the PVT were dominant,and disrupting the IL-PVT projection suppressed extinction ***,the axons of PVT neurons preferentially projected to the *** the PVT-CeL circuit also suppressed extinction ***,our findings reveal a new neural circuit for fear extinction retrieval outside the classical IL-amygdala circuit.

摘要：互质阵列因其大阵列孔径和高自由度特性在波束成形领域受到广泛关注.为了充分利用该特性,近年来学者们提出了基于孔洞填充的算法,有效提高了互质阵列波束成形的性能.然而,这些算法存在计算量大、噪声鲁棒性弱等缺点,难以适应复杂多变的实际环境.为此,本文利用张量的多维结构在参数估计上的性能优势,提出了一种基于低管秩张量分解的互质阵列自适应波束成形算法.首先将互质阵列的多采样虚拟信号矩阵重排为张量形式,利用其低管秩特性补全缺失的互相关信息;然后从补全后的张量数据中提取信号参数,并与目标先验进行匹配,最终得到波束成形权矢量.本算法分别利用ADMM和Tucker分解提高了张量补全和分解的运算效率;所设计的目标匹配方案也有效控制了算法误差.仿真结果展示了本算法在性能和计算复杂度相对于现有方法的优势,尤其是在低信噪比和少采样数的情况下.

摘要：连云港赣榆6号液化烃码头工程具有装卸液化烃的种类多、物性差异大、危险性高、工艺系统复杂等特点,针对上述特点,本文介绍了工作平台与系缆墩相结合的平面布置方案、工艺设计方案、工艺管道设计、低温丙丁烷工艺流程设计、低温液体收集池设置等,并在此工程中对码头控制室进行了抗爆设计,提升了码头安全水平。通过对本工程设计经验的总结,以期为我国液化烃码头工程的设计和建设提供借鉴与参考。

摘要：《两界书》以跨界的思维关照整个人类文明,其文本和思想的维度超越历史、文化、宗教、哲学、文学等传统范式,各种思想考量纵横交织,也包含了丰富而深刻的"治国理世化民"社会治理思想意涵。就社会治理的可能性和必要性而言,建基于人性的这一假设:人性虽道欲相叠,但未得交融,虽善恶并存,但可转化;就理想的社会治理状态而言,真正合乎规律且有效的社会治理也必当遵循人性本质,可以从人与自身、人与他人、人与自然三种关系和谐的角度来构建善治社会;从社会治理操作层面而言,应从道欲相适的角度设计社会治理手段,形成"自制—他制—天制"相互协调相互配合的社会治理机制。整体而言,可以从宏观性与思辨性、哲理性与伦理性、灵性与自洽性、本土性与普世性、历史性与前瞻性等维度理解《两界书》社会治理思想的价值和意义。

摘要：克利认为绘画不是再现作为可见事物的“前形”,而是“揭示”使可见得以可能的“原形”。“原形”作为不可见者是自然而然地持续生成、涌动和绽放的“自然”,在逻辑上“前形”奠基于“原形”,后者比前者更本源;“揭示”不是“再现”和“抽象”,后二者皆乃对象化的强力,而“揭示”是与流偕行和顺势而为的非对象化行为,“揭示原形”意味着如“原形”本身自然而然地持续生成、涌动和绽放的那样“形式显示”“原形”。克利绘画作为其艺术观的实践既不是具象绘画,亦非抽象绘画,而是居于二者之间的迹象艺术,海德格尔从“本有的转向”的角度将克利的绘画视为克服了艺术形而上学的非对象性绘画。