脆性位點 的英文怎麼說
中文拼音 [cuìxìngwèidiǎn]
脆性位點
英文
fragile site- 脆 : 形容詞1 (容易折斷破碎) fragile; brittle 2 (較硬的食物容易弄碎弄裂) crisp 3 (聲音清脆) (of ...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 位 : Ⅰ名詞1 (所在或所佔的地方) place; location 2 (職位; 地位) position; post; status 3 (特指皇帝...
- 點 : Ⅰ名詞1 (液體的小滴) drop (of liquid) 2 (細小的痕跡) spot; dot; speck 3 (漢字的筆畫「、」)...
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Fxs is mainly caused by a kind of dynamic mutation, the expansion of a cgg repeat located in the 5 ' - untranslated region ( 5 ' - utr ) of the fmr1 ( fragile x mental retardation ) gene
該綜合癥由患者細胞中可見xq27 . 3的脆性位點fraxa而得名。絕大多數脆性x綜合征患者的發病是由於fmr1基因5端非翻譯區的三核苷酸cgg重復的不穩定擴增所致。Beam column connections experienced a great deal of brittle fracture phenomenon in northridge earthquake and hyogoken - nanbu earthquake which indicated that connection performance is very important for steel frames
發生在美國北嶺和日本阪神地震都發生不同程度的樑柱節點脆性破壞,可見樑柱節點在多層鋼框架結構抗震設計中佔有非常重要的地位。To detect the patients and carriers of the fragile x syndrome, various analytic methods could be used. one is cytogenetic diagnosis to observe the expression of the fragile site fraxa located at xq27. 3
對脆x綜合征的診斷,可以通過細胞遺傳學方法觀察分析x染色體相應脆性位點的表達情況,或是通過southern印跡雜交的方法直接分析cgg重復的擴增突變。Moreover, the detailed calculation and contrastive analysis are carried out by using the software ansys. theoretical calculation and testing results show that adopting the connection construction with a hole on the web can alleviate the stress state greatly and transform the failure mode of the connection from brittle fracture to local buckling damage on beam, reduces the possibility of brittle fracture by welding and improve the ductility performance of connection to a great extent
結果表明,採用腹板開孔的節點形式,可以使梁的塑性鉸位置由梁根部向中部偏移,達到了有效控制塑性鉸位置的目的;同時,採用這種節點構造可以改變節點附近的梁截面應力分佈狀態,降低了節點脆性破壞的可能性,使節點的破壞模式從脆性破壞轉變為梁的局部屈曲破壞,很大程度上改善了結構的延性。分享友人