http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
( Qianqian Pang ),( Yuming Wang ),( Mingyuan Xu ),( Jiachao Xu ),( Shengquan Xu ),( Yichen Shen ),( Jinghong Xu ),( Rui Lei ) 생화학분자생물학회(구 한국생화학분자생물학회) 2019 BMB Reports Vol.52 No.3
Keloids are the most common pathological form of trauma healing, with features that seriously affect appearance and body function, are difficult to treat and have a high recurrence rate. Emerging evidence suggests that miRNAs are involved in a variety of pathological processes and play an important role in the process of fibrosis. In this study, we investigated the function and regulatory network of miR-152-5p in keloids. The miRNA miR-152-5p is frequently downregulated in keloid tissue and primary cells compared to normal skin tissue and fibroblasts. In addition, the downregulation of miR-152-5p is significantly associated with the proliferation, migration and apoptosis of keloid cells. Overexpression of miR-152-5p significantly inhibits the progression of fibrosis in keloids. Smad3 is a direct target of miR-152-5p, and knockdown of Smad3 also inhibits fibrosis progression, consistent with the overexpression of miR-152-5p. The interaction between miR-152-5p and Smad3 occurs through the Erk1/2 and Akt pathways and regulates collagen3 production. In summary, our study demonstrates that miR-152-5p/Smad3 regulatory pathways involved in fibrotic progression may be a potential therapeutic target of keloids. [BMB Reports 2019; 52(3): 202-207]
Dang Mengyue,Li Ying,Xu Chaoxiang,He Yulin,Yu Chunpeng,Liu Wenbo,Jin Hongming,Zhu Mingyuan,Zhang Jiujun,Li Wenxian 한국물리학회 2021 Current Applied Physics Vol.32 No.-
The electrochemical performances of LiNi0.5Co0.2Mn0.3O2 (NCM523) layered cathode material, such as poor rate capacity and cycling stability caused by undesirable intrinsic conductivity and low rate of lithium ion transportation, are not fairly good especially at elevated rate and cut-off voltage. To improve these properties, in this study, the co-coating layer of graphene and TiO2 was constructed on NCM523 surface. The graphene/TiO2 coating layer could effectively prevent hydrofluoric acid (HF) attacks, suppress the side reaction, accelerate the lithium ion diffusion and facilitate the electron migration. The enhancement of cycle performance and rate capacity was contributed to the uniform co-modified surface, interacting each other and thus exhibiting synergistic effects.
Hydrochlorination of acetylene to vinyl chloride monomer over bimetallic Au–La/SAC catalysts
Haiyang Zhang,Xugen Wang,Longlong Xu,Mingyuan Zhu,Bin Dai 한국공업화학회 2012 Journal of Industrial and Engineering Chemistry Vol.18 No.1
Gold and gold-based bimetallic catalysts for acetylene hydrochlorination were prepared with HAuCl44H2O and LaCl37H2O as precursors and analyzed by the characterization methods of BET,XRD, SEM, TG and ICP-AES. The results indicate that pitch-based spherical activated carbon SAC is the optimal carrier; Au/C catalyst deactivates easily for coke deposition and the valence change of Au in the reaction, the addition of lanthanum to gold can weaken the occurrence of coke deposition and inhibit the valence change of gold to improve the stability of the catalyst; Under the reaction conditions of temperature 423 K, C2H2 hourly space velocity (GHSV) 360 h1, feed volume ratio V (HCl)/V (C2H2) = 1.15and Au loading of 1 wt%, the optimal atomic ratio of Au, La (a/a) was 1:3, the conversion of acetylene was up to 98% and the selectivity to VCM was more than 99.8%.
Huang Xin,Lv Danju,Chen Xu,Xi Rui,Zi Jiali,Gao Mingyuan,Zhang Yan 한국CDE학회 2023 Journal of computational design and engineering Vol.10 No.1
An orthogonal double-chain differential evolution (ODCDE) algorithm is proposed to optimize the problem’s parameters for workpiece processing. ODCDE improves the differential evolution structure by changing the parcels into the orthogonal chains in the adaptive search range of the solution, which can avoid falling into local optimum, improve the solution precision, and speed up the convergence speed. The superiority of the proposed algorithm was proved by the function performance test on three sets of bench functions, which reached the first place in the set of 23 functions with other 11 optimal algorithms, ranked the second in the CEC2017 functions with other more recent 5 algorithms, and ranked the seventh in the CEC2011 functions with other 11 algorithms including AMO, SFS, and GSK algorithms. Finally, two kinds of optimal workpiece processing, the tubular column design and the multipass milling, are studied, and the results show that our algorithm performs better than other methods.