摘要：Two strategies for the design of new pillar[5]arene-based mechanically self-interlocked molecules (MSMs) are reported here. The first strategy is based on the construction of an intermediate pseudo[1]rotaxane followed by the desired bis-[l]rotaxane. The other one is based on the construction of the desired bis-[1]rotaxane directly via a condensation reaction through host-guest interactions between a mono-functionalized pillar[5]arene and the axle. The newly synthesized bis-[1]rotaxane BR was characterized by ~1H NMR, ^(13)C NMR, 2D NMRs (~1H-^(13)C HSQC,~1H-~1H COSY and NOESY) and LC-ESI-MS,which indicated compound BR displayed an self-interlocked structure in CDCl_3. Surprisingly, the results of SEM, TEM and DLS showed that the compound BR could assemble into spherical nanoparticles in MeOH.

摘要：将BIM技术与室内自然灯光分析技术相结合,在某种意义上,可以在项目采光设计过程中,对不同的方案进行论证,确保采光设计方案设计的最优化。本文将BIM技术与室内采光技术相结合,进行绿色建筑自然模拟分析,通过建立BIM三维模型,将其导入到DALI2016软件进行自然采光分析,采用房间采光达标率作为自然采光评价指标,计算表明:主要房间的采光达标率为77%,满足要求。

摘要：为了明确提高籽粒中糖含量、促进糯玉米富硒安全生产的最佳喷硒量,采用二因素裂区设计,对2个糯玉米品种彩甜糯1965(CTN1965)和晋糯20(JN20)在5个供硒水平下的生理特性及籽粒中糖、硒含量进行了比较研究。结果表明,随着叶面喷硒量增加,CTN1965和JN20的POD活性、GSH含量、叶绿素含量、可溶性糖含量、蔗糖含量均先升高后降低,以叶面喷硒45 g/hm2处理最高,分别较不喷硒对照显著提高47.94%、149.80%、49.86%、30.81%、29.33%和49.16%、115.35%、73.12%、28.08%、21.57%;MDA含量先降低后升高,以叶面喷硒45 g/hm2处理最低,较对照显著降低41.51%和40.96%;籽粒硒含量提高,以叶面喷硒90 g/hm2处理最高,分别较对照提高1046.06%和908.76%,超过了富硒玉米的安全标准。通过方程拟合,得出CTN1965、JN20叶面喷硒量的安全上限值分别为63.96、89.53 g/hm2。综合考虑生理特性及籽粒中糖、硒含量,CTN1965、JN20叶面最佳喷硒量均为45 g/hm2,可达到富硒玉米标准。