摘要：设计合成兼具良好爆轰性能、高稳定性和低成本的含能化合物是发展实用含能材料的关键.本文报道了一类新型分子钙钛矿含能化合物,它们可以通过使用低成本原料经简单一锅反应制备.作为氧化组分的高氯酸根阴离子和作为燃料组分的还原性有机阳离子交替紧密堆积于钙钛矿结构中,使该类化合物不仅有比目前军用含能炸药(例如RDX和HMX)更优异的爆炸性能,而且有更高的稳定性;其中无金属组分的分子钙钛矿含能化合物具有与CL-20相当的爆炸性能以及更高的比冲(约344秒).这种将低成本有机燃料组分和氧化剂组分组装在高对称性三元晶体结构的分子组装策略为设计有实用前景的含能材料提供了新思路.

摘要：Deposition of diamond inside the trenches or microchannels by chemical vapor deposition （CVD） is limited by the diffusion efficiency of important radical species for diamond growth （H, CH3） and the pore depth of the substrate template. By ultrasonic seeding with nanodiamond suspension, three-dimensional （3D） penetration structure diamond was successfully deposited in cylindrical microchannels of Cu template by hot-filament chemical vapor deposition. Micro-Raman spectroscopy and scanning electron microscopy （SEM） were used to characterize diamond film and the effects of microchannel depth on the morphology, grain size and growth rate of diamond film were comprehensively investigated. The results show that diamond quality and growth rate sharply decrease with the increase of the depth of cylindrical microchannel. Individual diamond grain develops gradually from faceted crystals into micrometer cluster, and finally to ballas-type nanocrystalline one. In order to modify the rapid decrease of diamond quality and growth rate, a new hot filament apparatus with a forced gas flow through Cu microchannels was designed. Furthermore, the growth of diamond film by new apparatus was compared with that without a forced gas flow, and the enhancement mechanism was discussed.

摘要：为了更好的分析岩溶地区大型岩质高边坡的稳定性,选择了贵阳市的大型建筑边坡为试验对象,根据现场岩土的质量特征和构造,运用稳定系数的计算来对其进行简要的分析。

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：阐述了球形与筒形阀体全焊接管线球阀的性能差异及适用工况,介绍了阀体全焊接管线球阀结构特点、阀座功能、试验要求和安全评估。

摘要：Cell-derived microvesicles(MVs) are secreted from almost all kinds of mammalian cells into the extracellular space, and play crucial roles in intercellular communication and transporting biomolecules between cells. However, there is a great challenge for visualizing and monitoring of MVs’ bio-behaviors due to the limitations of existing labeling methods. Herein, we report the first paradigm of designer cell-self-implemented labeling of MVs secreted from living mammalian MCF-7 cells in situ using the intracellular-synthesized fluorescent quantum dots(QDs) during the formation of MVs. By elaborately coupling intracellular biochemical reactions and metabolism pathways, the MCF-7 cells can be illuminated brightly by intracellular-biosynthesized fluorescent CdSe QDs. Simultaneously, intracellular-synthesized QDs can be in situ encapsulated by the secreted MVs budding from the plasma membrane of the fluorescing cells to label the MVs with an efficiency of up to 89.9%. The whole labeling process skillfully combines designer precise cell-tuned intricate synthesis of CdSe QDs with mild in-situ labeling via cell-selfimplementation just after feeding the cell with suitable chemicals, which is structure-or function-nondestructive and much more straightforward and milder than those by chemical conjugation or indirect encapsulation with conventional fluorogenic labels.

摘要：深圳某中型水厂设计规模为16×10^(4)m^(3)/d,本期扩建规模为16×10^(4)m^(3)/d,为克服传统斜管沉淀池老化、积泥等问题,扩建工艺采用新型侧向流倒V型斜板沉淀池工艺。生产运行结果表明,在相同投药量下,侧向流倒V型斜板沉淀池沉后水浊度比传统斜管沉淀池降低30%;侧向流倒V型斜板沉淀池刮泥、排泥对沉淀池出水浊度的影响可控;斜板正向冲洗对沉淀池出水浊度影响较大,且沉后水浊度恢复至0.5 NTU的时间长达2.5 h,需将正向冲洗时间设置在制水低谷期;出水稳流区存在返混“、跑矾”现象,可通过降低刮泥机运行速率、优化斜板分布进一步提升运行效果。

摘要：立足国家创新战略发展需求,从教学设计、教学目标、教学内容、教学模式和方法、第二课堂和考核评价方式等方面对有机化学课程进行改革,将其打造为优质课程思政的阵地。以创新国家战略需求对有机化学的要求为主线,构建课程思政体系及典型案例。在课程实践上,引导学生主动学习、深度思考、互相交流,组织学生积极参与和体验,极大地提升了学生学习有机化学的“获得感”,夯实学生的专业知识和能力素养的同时,也融入了思想教育元素,助力创新国家战略下的有机化学行业人才培养,可为其他化学基础课程开展课程思政育人提供参考。

摘要：由于培训平台会受到不同来源的请求,导致其运行的稳定性难以得到保障,为此,提出基于云计算的民航专业教师开放式远程培训平台设计。将高性能、高稳定性的智能开发板——K3-3568开发板作为开放式远程培训平台的设计载体;构建包含用户界面层、学习资源层、互动交流层、数据分析层4部分的平台构架,并利用云计算技术实现了平台的开放式运行。测试显示,设计平台在不同运行工况下均表现出了较高的稳定性。

摘要：利用ABAQUS软件建立方形铝合金管混凝土柱在轴压及偏压荷载下的有限元分析模型,通过对比5个矩形铝合金管混凝土柱的轴压及偏压试验结果来验证该数值分析模型的准确性,在此基础上对7A04-T6方形铝合金管混凝土柱的偏压性能进行研究,分析了模型破坏模式及长细比、偏心率和混凝土强度对偏压性能的影响,同时将构件的极限承载力与各国规范进行比较。结果表明:在偏压荷载作用下,7A04-T6方形铝合金管混凝土柱发生失稳破坏;长细比和核心混凝土强度与偏压极限承载力近似呈线性关系,偏心率与极限承载力呈非线性关系,构件延性和长细比与偏心率呈正相关;现有中国规范CECS 159—2004和美国规范AISC的规范计算值较为保守;最后通过回归分析,提出了7A04-T6方形铝合金管混凝土柱是偏压承载力计算公式。