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机场作为城市口岸,其建筑形象往往需要表达传统的地域特征,对于小型机场的航站楼更是一种有效的设计策略。由于建筑材料、建造技术和使用功能的改变,使现代建筑与传统建筑具有不同的表达方式。,因此传统建筑应根据现实需要转变,而建筑创新需要对传统建筑重新解读、分析和创造。结合遵义机场航站楼设计,探讨如何通过对传统建筑的空间类型、建构方式和形式构成的转化达到建筑意义的回归,并在现代语境下表达建筑的地域性。 相似文献
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原壳小球藻可快速利用蔗渣水解液中的可发酵糖,但水解液中副产物对细胞生长有抑制作用。为了提高其在高浓度水解液中的异养生长能力,本研究利用纤维床反应器(FBB)驯化细胞,系统研究了蔗渣水解液的制备及其组成、分批补料培养种子液、FBB中的细胞固定化,并在FBB中利用水解液为培养基进行细胞驯化。结果表明,蔗渣经酸解酶解后,其水解液的主要成分为葡萄糖、木糖、乙酸、纤维二糖和阿拉伯糖,浓度分别为18.40g/L、16.17g/L、6.13g/L、5.10g/L和2.29g/L;在发酵罐中采用Basal培养基补料分批培养细胞,117h后细胞密度可达到12.37g/L;将发酵罐与FBB连接并循环培养基33h后形成了固定化细胞床;随后以水解液培养基代替Basal培养基,通过逐级提高水解液培养基浓度来驯化培养固定化细胞,最终从纤维床上分离获得了能在含有35g/L葡萄糖的水解液中异养生长的高耐受性藻株,而野生型藻株不能生长。 相似文献
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针对进口日本MJS802H、MJS802RH型高速喷气纺纱机用胶辊价格昂贵、国内推广受限这一现状,在保证胶辊耐磨性能的前提下,从动态性能、强度、弹性、压缩变形和硬度等方面综合考虑,阐述了喷气纺纱机专用胶辊--TCP76的研制及其使用效果,通过与日本、美国胶辊同锭对比,指出该胶辊推进了纺机配件国产化进程,可降低纺纱成本. 相似文献
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Myeong-Hyeon Min Thant Zin Maung Yuan Cao Rungnapa Phitaktansakul Gang-Seob Lee Sang-Ho Chu Kyu-Won Kim Yong-Jin Park 《International journal of molecular sciences》2021,22(14)
Betaine aldehyde dehydrogenase 1 (BADH1), a paralog of the fragrance gene BADH2, is known to be associated with salt stress through the accumulation of synthesized glycine betaine (GB), which is involved in the response to abiotic stresses. Despite the unclear association between BADH1 and salt stress, we observed the responses of eight phenotypic characteristics (germination percentage (GP), germination energy (GE), germination index (GI), mean germination time (MGT), germination rate (GR), shoot length (SL), root length (RL), and total dry weight (TDW)) to salt stress during the germination stage of 475 rice accessions to investigate their association with BADH1 haplotypes. We found a total of 116 SNPs and 77 InDels in the whole BADH1 gene region, representing 39 haplotypes. Twenty-nine haplotypes representing 27 mutated alleles (two InDels and 25 SNPs) were highly (p < 0.05) associated with salt stress, including the five SNPs that have been previously reported to be associated with salt tolerance. We observed three predominant haplotypes associated with salt tolerance, Hap_2, Hap_18, and Hap_23, which were Indica specific, indicating a comparatively high number of rice accessions among the associated haplotypes. Eight plant parameters (phenotypes) also showed clear responses to salt stress, and except for MGT (mean germination time), all were positively correlated with each other. Different signatures of domestication for BADH1 were detected in cultivated rice by identifying the highest and lowest Tajima’s D values of two major cultivated ecotypes (Temperate Japonica and Indica). Our findings on these significant associations and BADH1 evolution to plant traits can be useful for future research development related to its gene expression. 相似文献
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Gennady Vasiliev Irina Chadaeva Dmitry Rasskazov Petr Ponomarenko Ekaterina Sharypova Irina Drachkova Anton Bogomolov Ludmila Savinkova Mikhail Ponomarenko Nikolay Kolchanov Alexander Osadchuk Dmitry Oshchepkov Ludmila Osadchuk 《International journal of molecular sciences》2021,22(5)
Earlier, after our bioinformatic analysis of single-nucleotide polymorphisms of TATA-binding protein-binding sites within gene promoters on the human Y chromosome, we suggested that human reproductive potential diminishes during self-domestication. Here, we implemented bioinformatics models of human diseases using animal in vivo genome-wide RNA-Seq data to compare the effect of co-directed changes in the expression of orthologous genes on human reproductive potential and during the divergence of domestic and wild animals from their nearest common ancestor (NCA). For example, serotonin receptor 3A (HTR3A) deficiency contributes to sudden death in pregnancy, consistently with Htr3a underexpression in guinea pigs (Cavia porcellus) during their divergence from their NCA with cavy (C. aperea). Overall, 25 and three differentially expressed genes (hereinafter, DEGs) in domestic animals versus 11 and 17 DEGs in wild animals show the direction consistent with human orthologous gene-markers of reduced and increased reproductive potential. This indicates a reliable association between DEGs in domestic animals and human orthologous genes reducing reproductive potential (Pearson’s χ2 test p < 0.001, Fisher’s exact test p < 0.05, binomial distribution p < 0.0001), whereas DEGs in wild animals uniformly match human orthologous genes decreasing and increasing human reproductive potential (p > 0.1; binomial distribution), thus enforcing the norm (wild type). 相似文献