摘要：《钱锺书手稿集·容安馆札记》散见讨论宋词的文字七万余,集中呈现了钱锺书的宋词研究成果。《容安馆札记》的基本论词方式是考索语典源流,不仅指明了许多词句的宋前诗歌语典渊源,还向下揭示出宋词对于戏曲小说的影响。这样的论词方式使得宋词的体式成为《容安馆札记》的核心词学论题,相关结论主要包括宋词的体式渊源自齐梁乐府诗,词体有着自我重复的写作体式,圆融浑成的篇章结构体式是词体的最高艺术追求等。在融通集部的学术理念下,点化手段的高下与是否呈现文学共通性构成了《容安馆札记》的主要评词标准。尽管《容安馆札记》的宋词批评并不基于词学传统,但却拾得了散落在传统之外的大量碎金片玉,足供专门之词学参考借鉴。

摘要：Catalytic hydrogenation is a vital industrial means to produce value-added fuels and fine chemicals,however, requiring highly efficient catalysts, especially the nonprecious ones. To date, the majority of high-performance industrial hydrogenation catalysts are made of precious metals-based materials, and any given catalyst could only be used to catalyze one or few specific reactions. Herein, we exemplify a crystal phase engineering approach to empower Ni nanoparticles(NPs) with superb intrinsic catalytic activities toward a wide spectrum of hydrogenation reactions. A facile pyrolysis approach is used to directly convert a Ni-imidazole MOF precursor into hexagonal close-packed(hcp)-phased Ni NPs on carbon support. The as-synthesized hcp-phased Ni NPs exhibit unprecedented hydrogenation catalytic activities in pure water towards nitro-, aldehyde-, ketone-, alkene-and N heterocyclic-compounds, outperforming the face-centered cubic(fcc)-Ni counterpart and the reported transition metalsbased catalysts. The density functional theory calculations unveil that the presence of hcp-Ni boosts the intrinsic catalytic hydrogenation activity by coherently enhancing the substrate adsorption strength and lowering the reaction barrier energy of the rate-determining step. We anticipate that the crystal phase engineering design approach unveiled in this work would be adoptable to other types of reactions.

摘要：为引发大众对蒙古族传统马鞍色彩的心理认同感,将视觉显著性引入到蒙古族传统马鞍的色彩提取与创新色彩设计转译中。收集并选取具有代表性的17-20世纪蒙古族传统马鞍高清图像,运用视觉显著性检测与k-means聚类分析相结合的方法对图像进行色彩提取与分析;通过人对色彩的视觉感知层次及显著性特征构建赋色设计转译层级。以“雕花的马鞍”为题对马鞍中的纹样进行赋色方案呈现。运用此方法提取的蒙古族马鞍装饰色彩具有一定代表性;从人的视觉特性出发进行赋色,成为连接传统文化与现代创新的情感纽带,为探索传统色彩的传承和设计创新提供了新思路。

摘要：Bimetallic nanostructures have attracted great interest as efficient catalyst to enhance activity,selectivity and stability in catalytical ***,we report a facile one‐pot carbothermal route to in‐situ controllable synthesize heterogeneous bimetallic Ni3Fe NPs@C *** X‐ray diffraction,transmission electron microscopy,X‐ray photoelectron spectroscopy and N2 adsorption‐description results reveal that the Ni3Fe alloy nanoparticles are evenly embedded in carbon *** as‐prepared Ni3Fe NPs@C catalyst shows excellent selective hydrogenation catalytic performance toward the conversion of levulinic acid(LA)toγ‐valerolactone(GVL)via both direct hydrogenation(DH)and transfer hydrogenation(TH).In DH of LA,the bimetallic catalyst achieved a 93.8%LA conversion efficiency with a 95.5%GVL selectivity and 38.2 mmol g–1 h–1 GVL productivity(under 130°C,2MPa H2 within 2 h),which are 6 and 40 times in comparison with monometallic Ni NPs@C and Fe NPs@C catalysts,*** addition,the identical catalyst displayed a full conversion of LA with almost 100%GVL selectivity and 167.1 mmol g–1 h–1 GVL productivity at 180°C within 0.5 h in TH of *** optimal reaction conditions,the DH and TH catalytic performance of 500‐Ni3Fe NPs@C(3:1)catalyst for converting LA to GVL is comparable to the state‐of‐the‐art noble‐based *** demonstrated capability of bimetallic catalyst design approach to introduce dual‐catalytic functionality for DH and TH reactions could be adoptable for other catalysis processes.

摘要：为了探究受限空间内油雾爆燃事故机理及事故后果,设计了可视化的油雾爆燃机理测试实验平台。通过“实验平台功能需求分析-平台设计与开发-实验设计与实施-数据采集-结果分析”全过程,实现实验平台开发与各种船舶舱室、石油炼化生产过程及其他工业生产中油雾爆燃事故模拟实验。通过爆燃火焰传播规律、舱室内温度场、压力场的测试与分析,揭示了油雾爆燃发展规律。爆燃峰值压力可达0.9 MPa。爆燃温度较高,舱内峰值温度达到988℃,油雾爆燃破坏性较强。该实验增强了教学过程的直观性、交互性和多感知性,提高了学生的安全意识和解决复杂工程问题的探究能力,培养了学生的实践创新能力,提升了实践教学的质量。

摘要：完善人才评价体系是深化铁路科技企业人才发展体制机制的关键问题。在明确铁路科技企业人才评价体系概念的基础上,结合其行业属性特点,以职业发展通道和人才评价场景为核心,提出人才评价体系结构框架,从评价目的、主体、内容、方式、周期等方面提出人才评价体系功能构成,梳理设计了人才评价核心指标集,并从人才评价指标体系维护、人才评价结果运用、人才评价工作评估、人才评价信息化支撑等方面提出人才评价体系实施策略,为推进人才评价改革、完善人才发展体制机制提供支持。

摘要：随着我国矿产资源开发工作向深部发展,复杂的应力条件和恶劣的开采环境严重威胁到井下人员的安全,开采装备无人化是解决井下安全和效率问题的有效手段。结合自动驾驶和远程遥控技术,设计并应用了地下铲运机无人驾驶系统,在千米深井中实现了铲运机出矿作业的全流程无人化。在应用试验中,自动驾驶直线行驶的最大速度达10 km/h以上,转弯最大速度为3 km/h,远程遥控的延迟在10 ms以下。该系统可有效提高矿山生产效益、降低安全事故风险,并有助于推动我国矿山智能化转型升级。

摘要：为了改善本部门当前测绘设备管理自动化水平低的现状,本文使用二维码和Bmob后端云相结合的技术,开发实现了移动测绘设备管理系统。该系统可以实现设备出入库管理、资产管理及责任追溯管理等功能,满足了测绘设备管理无纸化办公的需求,提高了当前设备的管理效率。

摘要：为建立病毒性出血性败血症病毒精准快速检测方法,以病毒性出血性败血症病毒基因组特异保守的糖蛋白基因片段为靶目标,设计合成了特异性引物及探针,优化退火温度等关键反应条件,分别进行灵敏性试验、特异性试验及重现性试验,构建病毒性出血性败血症病毒数字PCR检测技术体系,同时,与实时荧光定量RT-PCR方法进行对比分析。试验结果显示,病毒性出血性败血症病毒数字PCR最佳退火温度为58.5℃。灵敏性试验显示,随着病毒性出血性败血症病毒基因组RNA连续10倍稀释,稀释至105倍数时,数字PCR体系仍可以检测到阳性微滴,因此,确定RNA基因组核酸含量19拷贝/μL为病毒性出血性败血症病毒数字PCR的检测低限。特异性试验表明,该方法只与目标病毒——病毒性出血性败血症病毒有特异性扩增,与传染性胰脏坏死病毒、传染性造血器官坏死病毒、鲤春病毒血症病毒、流行性造血器官坏死病毒、牙鲆弹状病毒、病毒性神经坏死病毒、锦鲤疱疹病毒、鲤浮肿病毒、真鲷虹彩病毒、淋巴囊肿病毒等10种病毒均无扩增反应。重复性试验结果表明,病毒性出血性败血症病毒数字PCR批内与批间试验的变异系数均小于1%,具备良好的重复性。利用构建的数字PCR方法,对收集到的国内及进境鱼类样品共计1210批次进行病毒性出血性败血症病毒检测,结果显示,数字PCR阳性样本检出率为9.5%,常规实时荧光定量RT-PCR阳性样本检出率为7.69%~7.77%。临床试验结果表明,研究建立的病毒性出血性败血症病毒数字PCR方法较常规技术具有更高的检测灵敏性,适用于水生动物疫病精准检测的需求。

摘要：Catalytic hydrodeoxygenation(HDO)is one of the most promising strategies to transform oxygen-rich biomass derivatives into high value-added chemicals and fuels,but highly challenging due to the lack of highly efficient nonprecious metal ***,we report for the first time of a facile synthetic approach to controllably fabricate well-defined Ni-Co alloy NPs confined on the tip of N-CNTs as HDO *** resultant Ni-Co alloy catalyst possesses outstanding HDO performance towards biomass-derived vanillin into 2-methoxy-4-methylphenol in water with 100%conversion efficiency and selectivity under mild reaction conditions,surpassing the reported high performance nonprecious HDO ***,our experimental results also unveil that the Ni-Co alloy catalyst can be generically applied to catalyze HDO of vanillin derivatives and other aromatic aldehydes in water with 100%conversion efficiency and over 90%***,our DFT calculations and experimental results confirm that the achieved outstanding HDO catalytic performance is due to the greatly promoted selective adsorption and activation of C=O,and desorption of the activated hydrogen species by the synergism of the alloyed Ni-Co *** findings of this work affords a new strategy to design and develop efficient transition metal-based catalysts for HDO reactions in water.