Zobrazeno 1 - 10
of 780
pro vyhledávání: '"Yujun, Feng"'
Publikováno v:
Materials & Design, Vol 246, Iss , Pp 113317- (2024)
Poly (p-phenylene terephthalamide) (PPTA), is well known as a material with excellent properties, but its application is greatly limited due to the harsh methods required for its preparation. This study proposes an innovative carbodiimide-assisted po
Externí odkaz:
https://doaj.org/article/666cc0983e4a464dbb83bd3e135c935a
Autor:
Hongyao Yin, Weiluo Guo, Runxi Wang, James Doutch, Peixun Li, Qiang Tian, Zhuo Zheng, Lingzhi Xie, Yujun Feng
Publikováno v:
Advanced Science, Vol 11, Iss 17, Pp n/a-n/a (2024)
Abstract The requirement for cryogenic supramolecular self‐assembly of amphiphiles in subzero environments is a challenging topic. Here, the self‐assembly of lamellar lyotropic liquid crystals (LLCs) are presented to a subzero temperature of −7
Externí odkaz:
https://doaj.org/article/4ace694edb3b495e904794665c86cd93
Publikováno v:
Corrosion Communications, Vol 12, Iss , Pp 46-57 (2023)
Chinese ancient bronze fragments from three periods of history were investigated in terms of the characteristics of substrate and patina. The non-destructive protective effect of menthol coating was verified. Patinas on the fragments of the Spring an
Externí odkaz:
https://doaj.org/article/26344a76a1f549f8a715fdb3dc964cec
Autor:
Hongyu Wang, Qilai Zhao, Hang Liu, Yuxin Sun, Jialong Li, Junjie Zheng, Ye Yuan, Qianwen Zhang, Changsheng Yang, Yujun Feng, Yinhong Sun, Zhongmin Yang, Shanhui Xu
Publikováno v:
Photonics, Vol 11, Iss 9, p 877 (2024)
In this study, a kilowatt-level high-efficiency narrow-linewidth all-fiber Tm3+-doped continuous-wave laser operating at 1.95 μm is demonstrated. Benefitting from an advanced boost design of a two-stage main amplifier, it not only effectively manage
Externí odkaz:
https://doaj.org/article/128a6fff086048ef901ae7b825e72443
Autor:
JI Yujun, FENG Fan, FENG Kuo
Publikováno v:
Ziyuan Kexue, Vol 45, Iss 4, Pp 786-799 (2023)
[Objective] This study analyzed the factor crowding effect of marine manufacturing industry agglomeration, and revealed the impact of factor crowding on the productivity of marine manufacturing enterprises. [Methods] Taking enterprise productivity as
Externí odkaz:
https://doaj.org/article/4a0a9ef82bbe4d9f82e8bd6477970810
Autor:
Rui Li, Huajun Zhang, Yujun Feng, Yanyan Wang, Xueying Wang, Suyan Gao, Lixia Dong, Xin Zhao, Huiqing Li, Liwei Li, Xiyu Guo
Publikováno v:
Medical Science Monitor; 9/6/2024, Vol. 30, p1-6, 6p
Publikováno v:
ACS Omega, Vol 7, Iss 7, Pp 5853-5863 (2022)
Externí odkaz:
https://doaj.org/article/4bf43beaf28c4b0b8c03173c3ec0eb9c
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 1, Pp 1-6 (2022)
Transverse mode instability (TMI) limits the power scaling of high-power fiber lasers and amplifiers. One method of mitigating TMI is to strip unwanted modes by bending the fiber. However, the bending-induced mode distortion will change the TMI coeff
Externí odkaz:
https://doaj.org/article/d8dffed38d1c45c3b2c3dbd1c5aa002f
Publikováno v:
ACS Omega, Vol 6, Iss 39, Pp 25421-25429 (2021)
Externí odkaz:
https://doaj.org/article/70a61d0b95bd43d29ce972dbd3724640
Autor:
Yujun Feng
Publikováno v:
Сравнительная политика, Vol 12, Iss 3, Pp 123-141 (2021)
The spread of COVID-19 has intensified existing global conflicts and profoundly changed the global political, economic, and security landscape since the end of the Cold War. Recently, Russian leaders and think tank experts have given indepth consid
Externí odkaz:
https://doaj.org/article/bfe80f39d3b34c3597beddc20cfa4d92