http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Shengjie Yao (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
Shengjie Yao,Lei Sun,Xudong Ma 대한기계학회 2016 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.30 No.5
This paper presents the deformation behavior and crashworthiness of electric resistance welded mild steel tubes with axial gradient microstructures in quasi-static compression. Three sets of tubes were prepared, and regions of each tube were Induction heated and directly quenched (IH-DQ). The effect of the length to diameter (L/D) ratio, and length of the IH-DQ region on crushing characteristics was investigated, and compared with untreated tubes. The compression tests revealed that improved energy absorption can be obtained in IHDQ tubes if the collapse is controlled by the formation of a concertina buckling mode. However, there was a tendency to produce mixed or Euler buckling modes as the ratio of L/D increased. Meanwhile, the results of the crush experiments and the FEM models showed that the heat-treatment process should be precisely controlled to produce the correct type of microstructure, and circumferential uniformity of microstructure distribution.
-
Tingbo Jiang,Shengji Wang,Boru Zhou,Wenjing Yao 한국식물학회 2018 Journal of Plant Biology Vol.61 No.2
ERF transcription factor involves in many aspectsof plant development and response to both biotic and abioticenvironmental stimuli. In this study, we provided evidencethat PsnERF75 can improve the salt tolerance ability oftransgenic Arabidopsis. RT-qPCR analysis described thespatio-temporal expression patterns of PsnERF75 in differentpoplar tissues. Under salt stress condition, root and leaftissues were more sensitive than stem tissue. In addition,seed germination rates of PsnERF75 transgenic Arabidopsiswere significantly enhanced. Growth status of PsnERF75transgenic Arabidopsis seedlings was much better than thatof the controls. Physiological and histochemical assaysindicated PsnERF75 transgenic Arabidopsis have a greatercapacity to eliminate reactive oxygen species and lighten thedamages to plants than the controls. Using RNA-seq analysis,100 DEGs that were significant differentially expressedbetween PsnERF75 transgenic Arabidopsis and the controlsunder salt stress conditions were identified. Seventeen upregulatedand 10 down-regulated DEGs participate in plantsalt stress response process. In addition, subcellular localizationshowed that PsnERF75 is a nuclear-localized protein. All ofthe results will provide novel insights into the functions ofERF75 in plants under abiotic stress condition.
-
Peng Zhang,Han Wang,ShengJie Yao,ChuanJie Wang,Qiang Zhu,Gang Chen 대한금속·재료학회 2021 METALS AND MATERIALS International Vol.27 No.2
The Cu–3 wt%Ag–0.5 wt%Zr are rolled with the same reduction process at room (RT) and cryogenic (CT) temperature,respectively. The electron backscatter diffraction and transmission electron microscope are used to analyze and comparethe evolutions of material microstructure and texture. The results show that the stability of as-rolled CT sheets is differentfrom that of the RT samples, which can be verified by the lower temperature for the occurrence of recrystallization andAg-base particles precipitation. Besides the Brass, Copper and S textures which are exhibited in the two kinds of as-rolledsheets, there are also Q and P texture components in the as-rolled CT sheets. The constitutive equation basing on evolutionof dislocation mean free path (L) and dislocation cell size (dDC) with plastic strain indicates that the initial values of L, dDCand mobile dislocation density (ρm) are associated with annealing condition closely. Furthermore, the strain ranges of thestable and instable plastic deformation are related to the degree of recovery and recrystallization.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
