摘要：There is an increasing need for high performance oscillators as the faster transmission networks demand for high frequency ***-electronic oscillators(OEO)enable us to make better oscillators in terms of size,weight and *** this paper,photonic integration is proposed for realizing the OEO with micro ring resonator(MRR)and radio-frequency(RF)amplifiers of monolithic microwave integrated circuit(MMIC),which can be used for generating 110 GHz sine *** OEO architecture is proposed and block diagram developed considering Silicon based MRR and three-stage RF amplifier based on Ga N high-electron-mobility transistor(HEMT).A simulation model is developed according to the Klein model of MRR and is validated against the calculated performance *** dimensions are calculated as with silicon on insulator(SOI)technology and a radius 5.27μm for the device is *** spectral range(FSR)of 48.52 nm and filter rejection ratio of 16.79 d B are obtained for this *** proposed RF amplifier is modelled with Ga N parameters derived from high frequency pinch-off model and with power amplifier *** gain for this amplifier is obtained as 10.6 d *** OEO design is developed in this project in such a way that the system can be manufactured with the existing methods.

摘要：D-F102是Denon（天龙）6月份上市的一款迷你组合音响套装。这套组合音响最大的特色是采用模块化设计并允许自己组合模块和任意购买，它由相互独立的五部分组成，带收音功能的功放DRA-F102（约3500元）、CD播放机DCD-F102（约2600元）MD播放机DMD-F102（约3000元）、磁带卡座DRR-F102（约1800元）、双声首音箱SC-102SG（约3500元），你完全可以根据自己的需要选购相应的部分。

摘要：JBL不但在传统音箱领域具有很高名气。它在多媒体音箱方面的造诣也同样令人赞叹。JBL除推出了各种外形超酷的桌面多媒体音箱外，还提供了一款比钱夹大不了多少的便携式多媒体音箱——on tour。

摘要：SONY RHT-G1000是专为简化家庭影院安装所设计的整台式影音系统（Active Interior System）它可以适用于任何家居环境并更加节省空间．

摘要：The microbiota-gut-brain axis(MGBA)has emerged as a key prospect in the bidirectional communication between two major organ systems:the brain and the *** between the two organ systems allows the body to function without disease,whereas dysbiosis has long-standing evidence of etiopathological *** most common communication paths are the microbial release of metabolites,soluble neurotransmitters,and immune ***,each pathway is intertwined with a complex *** the emergence of in vitro models and the popularity of three-dimensional(3D)cultures and Transwells,engineering has become easier for the scientific understanding of neurodegenerative *** paper briefly retraces the possible communication pathways between the gut microbiome and the *** further elaborates on three major diseases:autism spectrum disorder,Parkinson’s disease,and Alzheimer’s disease,which are prevalent in children and the *** diseases also decrease patients’quality of ***,understanding them more deeply with respect to current advances in in vitro modeling is crucial for understanding the *** of MGBA in the laboratory uses many molecular technologies and biomaterial *** and organoids provide a more realistic picture of the cell and tissue structure than *** them with the Transwell system offers the advantage of compartmentalizing the two systems(apical and basal)while allowing physical and chemical cues between ***-edge technologies,such as bioprinting and microfluidic chips,might be the future of in vitro modeling,as they provide dynamicity.

摘要：“不论世间如何动乱，最后终归于寂静；不论万法如何差别，最后终归于平等。”在这个错综复杂、瞬息流变的世界，我们在追求着怎样的设计？有些人无时无刻不在标榜“个性”，热衷于往自己身上贴上各式各样的“标签”，以“标新立异”作为设计的目标：而有些人却选择沉淀内心，体察和感悟身边世界和日常生活的细微变化，在寂静中寻找设计的本质。

摘要： 用于HDI印制电路板生产的新奇工艺,采用尺寸稳定的阳极的脉冲电镀铜。 1 前言 持续的小型化发展驱使着PBC设计越来越走向HDI。这意味着要有更精细的线宽/间距。

摘要：当我们逐步迈入的计算机化、自动化、充斥着人工智能的新兴世界中时,很多工作、业务、职业都已不再重要,它们将走向消亡。想要在这个新的经济文化环境中生存,需要有掌握创造性、适应性以及创新性等艺术家、设计师和建筑师们所需具备的各种能力。艺术在改变:制作、展示、分布、筹资、收藏艺术的形式是流动的,是不断改变的。设计已成了一个“自下而上”而不是“自上而下”的过程。为了能够达到预期,艺术家和设计师需要在新型创意的机制下,接受教育和训练,促进与新现实相关的结构与结果的创新。在此我们探讨了相关艺术教育机构可遵循、借鉴的原理以及观点。

摘要：A Neutron Time-of-Flight(NTOF) spectrometer, based at the Heavy Ion Research Facility in Lanzhou(HIRFL) was developed for studies of neutron production of proton induced spallation reactions related to the ADS project. After the presentation of comparisons between calculated spallation neutron production doubledifferential cross sections and the available experimental data, a detailed description of the NTOF spectrometer is given. Test beam results show that the spectrometer works well and data analysis procedures are *** comparisons of the test beam neutron spectra with those of GEANT4 simulations are presented.

摘要：1910年,德国心理学家马克思·韦特海默、库尔特·考夫卡和沃尔夫冈·柯勒共同创立了格式塔心理学。本文作者讨论了格式塔理论对艺术和设计的影响,阐述了受日本启发的美学理论及其相似性,并探寻格式塔心理学家与某些艺术家的共性。