摘要：Cobalt disulfide(CoS_(2))has been considered a promising anode material for lithium-ion batteries(LIBs)due to its high theoretical capacity of 870 mA h g^(-1).However,its practical applications have been hampered by undesirable cycle life and rate performance due to the volume change and deterioration of electronic conductivity during the dischargecharge *** this study,an interconnected CoS_(2)/N-doped carbon/carbon nanotube(CoS_(2)/NC-CNTs-700)network was successfully prepared to boost its lithium storage performance,in which small-size CoS_(2)nanoparticles were confined by N-doped carbon and uniformly decorated on the surface of CNTs.N-doped carbon can effectively accommodate the large volume expansion of CoS_(2)***,the 3D conductive nanostructure design offers adequate electrical/mass transport *** from this,the CoS_(2)/NCCNTs-700 electrode demonstrates a long cycle life(a residual capacity of 719 mA h g^(-1)after 100 cycles at 0.2 A g^(-1))and outstanding rate performance(335 mA hg^(-1)at 5.0 A g^(-1)).This study broadens the design and application of CoS_(2)and fosters the advances in battery anode research.

摘要：In order to discover new molecules with good insecticidal activities, a series of anthranilic diamides containing polyfluoroalkyl pyrazole were designed and synthesized, and their structures were characterized by1 H NMR and HRMS. Bioassays demonstrated that some of the title compound exhibited excellent insecticidal activities. The larvicidal activities of compound 8a, 8c, 8g, 8k and 8l against Mythimna separata Walker were 100% at 0.8 mg/L. The insecticidal activities of compound 8a, 8c,8e, 8g, 8k and 8l against Plutella xylostella Linnaeus were 100% at 0.4 mg/L. Surprisingly compounds 8a and 8c still showed 100% larvicidal activities against Plutella xylostella Linnaeus at 0.08 mg/L comparable to the commercialized Chlorantraniliprole. The LC_（50） of compound 8a and 8c against M. separata is 0.048 and 0.043 mg/L respectively.

摘要：劳伦斯是英国20世纪最具争议的作家,他的文学创作和他对绘画艺术的追求紧密相连。如果说劳伦斯在文学领域是个文学大家的话,那么他在绘画领域则是个绘画天才,他给世人留下了诸多经典绘画作品,其主题展现了人体之美,关注人与人、人与自然之间的关系,将艺术与生活紧密地联系起来。劳伦斯的文学创作与艺术创作相互渗透、相得益彰,两者都在力求探索人的内心世界,引发人们对人性的思考。

摘要：光伏阵列设计主要包括阵列间距、高度、倾角、光伏模块的选择以及安装方向的确定,设计方案的优劣直接关系到场地与光照的有效利用和投资效益。在场地尺寸给定条件下,这些因素相互牵制、共同影响光伏系统电能的输出,因此光伏阵列设计的优化十分必要。首先提出计算光伏阵列自身阴影损失的改进模型;然后在该模型的基础上,建立以最大发电量和最大收益为目标的阵列设计优化模型,运用粒子群算法求解,分析各参数对年发电量的影响;最后将该方法用于实际光伏屋顶电站系统设计,并获得满意效果,验证了该设计方法的合理性与工程实用价值。

摘要：英国工艺美术运动的先驱者和领袖人物约翰·罗斯金被称为“他那时代惟一有创见的英国思想家”[1](p.189),“维多利亚时代的圣人”。[2](p.16)罗斯金全集虽然有39集之巨,但是他并没有独立的论述美学的著作。罗斯金的美学思想散见于他的许多论艺术和建筑的著作中。在继承了英国经验主义美学的基础上,他提出了“典型美”、“重大美”,并对“崇高”这一美学概念作出了自己的解释。在提倡道德美的前提下,罗斯金确立了自己的人文主义艺术美学思想。

摘要：作为20世纪最著名的英国诗人,菲利普·拉金的诗歌素朴而深奥,平白而寓意深远,其创作手法往往集多种艺术形式为一体,充满现代化的生活气息。本文旨在探讨拉金诗歌中动态拍摄的视觉化叙述艺术以及诗歌中"漫游者"叙述所展示的现代城市文化空间。拉金突破了传统的诗歌表现手法,运用"摄像式"叙述技巧,捕捉和记录客观现象,通过场景的连续跳动将景内人物、实物彼此连接,凸现了视觉化动态叙述效果。诗歌中的叙述者以一个漫游者的身份,用独特的视角、细致的观察和敏锐的内心感受,阅读着城市文化的空间景观。拉金强调诗歌的视觉动态效果,使得诗歌展现了一种生动有机的地域文化空间。

摘要：小说《时时刻刻》是当代美国作家迈克尔·坎宁安的代表作之一。1998年,该作品一经出版便取得了空前的商业成就,并于次年获得了包括普利策奖及笔会/福克纳小说奖在内的众多文学奖项。2003年,据其改编的同名电影被搬上银幕后旋即获得了当年的金球奖、英国学院奖及多项奥斯卡提名。电影《时时刻刻》是通过对原著的"镜像"式再现、导演和演员们的个性化诠释以及再创造,并在此基础上充分发挥电影艺术的叙事特长,从而成功地完成了由文学文本到电影这两种不同媒介之间的艺术转换。

摘要：为了提高旋翼转速优化直升机总体参数设计质量,基于不确定性多学科设计优化方法,对旋翼转速优化直升机的参数设计进行了研究。首先对最优旋翼转速的不确定性进行分析与建模,同时也考虑了直升机加工制造、材料老化引起的不确定性因素,对比发现最优旋翼转速是旋翼转速优化直升机设计中的主要不确定性因素;然后在协同优化框架下,分别建立了直升机飞行性能、直升机重量、飞行稳定性与变转速涡轴发动机性能计算模型;最后以续航性能为系统学科,悬停性能、飞行稳定性分别作为子学科,进行多学科的不确定性优化设计,得到了3种不确定性优化设计方案。通过对比分析可以发现:第2种方案为旋翼转速优化直升机的最佳参数设计方案,该方案满足悬停需用功率低于350kW,飞行稳定性指数小于0.8等约束条件的概率不低于95.46%,并且直升机的最大航时期望值也较大。

摘要：This paper presents a neutronics design of a 10 MW ordered-pebble-bed fluoride-salt-cooled high-temperature experimental reactor. Through delicate layout, a core with ordered arranged pebble bed can be formed,which can keep core stability and meet the space requirements for thermal hydraulics and neutronics ***, objectives of the core include inherent safety and sufficient excess reactivity providing 120 effective full power days for experiments. Considering the requirements above, the reactive control system is designed to consist of 16 control rods distributed in the graphite reflector. Combining the large control rods worth about 18000–20000 pcm, molten salt drain supplementary means(-6980 to -3651 pcm) and negative temperature coefficient(-6.32 to -3.80 pcm/K) feedback of the whole core, the reactor can realize sufficient shutdown margin and safety under steady state. Besides, some main physical properties, such as reactivity control, neutron spectrum and flux, power density distribution, and reactivity coefficient,have been calculated and analyzed in this study. In addition, some special problems in molten salt coolant are also considered, including ~6Li depletion and tritium production.

摘要：利用电磁力随电磁场强度变化而改变的原理,设计电磁支撑与机械支撑并联的试验装置,实现机械系统支撑刚度参数随电磁场强度的变化.通过对试验装置数学模型的研究和线性化分析,给出了通过控制电流的随机改变实现机械系统支撑刚度参数随机变化的四个设计准则.线性化准则可保证机械系统支撑刚度的线性特性;线性随机准则能确保支撑刚度参数与随机控制电流间的线性关系;随机分量显著准则使得支撑刚度具有明显的随机特征,便于试验研究;综合刚度为正的设计准则,能够保证试验系统的稳定性.根据这些设计准则,制成了具有随机刚度支撑参数的模拟试验装置.试验表明,使用该试验装置可以较好地实现支撑刚度参数的随机模拟.