Zobrazeno 1 - 10
of 107
pro vyhledávání: '"Shengjun Shi"'
Autor:
Jinmei Cheng, Yushun Dou, Jiaxin Li, Tingting You, Yihai Wang, Mengchuan Wang, Shengjun Shi, Shenghui Peng, Chun-hui Cui, Xiaopin Duan, Jisheng Xiao
Publikováno v:
Materials & Design, Vol 238, Iss , Pp 112638- (2024)
Critical limb ischemia (CLI) remains a significant clinical challenge with high morbidity and mortality. Considering the critical role of hypoxia-inducible factor 1α (HIF-1α) in hypoxic site to induce angiogenesis by regulating the expression of gr
Externí odkaz:
https://doaj.org/article/e55002e844c940e082d2da807e531950
Publikováno v:
Journal of Intensive Medicine, Vol 3, Iss 3, Pp 275-282 (2023)
Background: The predictive value of red blood cell distribution width (RDW) for mortality in patients with sepsis-induced acute kidney injury (SI-AKI) remains unclear. The present study aimed to investigate the potential association between RDW at ad
Externí odkaz:
https://doaj.org/article/73379b7ce785401e8a026ec8ed20cec8
Autor:
Xin Jin, Jiandong Zhu, Haoyun Yu, Shengjun Shi, Kecheng Shen, Jingyu Gu, Ziqian Yin, Zhengquan Yu, Jiang Wu
Publikováno v:
PLoS ONE, Vol 19, Iss 3, p e0298055 (2024)
BackgroundLINC00324 is a long-stranded non-coding RNA, which is aberrantly expressed in various cancers and is associated with poor prognosis and clinical features. It involves multiple oncogenic molecular pathways affecting cell proliferation, migra
Externí odkaz:
https://doaj.org/article/c5b64f56b97347538ea4b658f4453f54
Publikováno v:
IEEE Access, Vol 6, Pp 57249-57256 (2018)
A deep-sea linear ultrasonic motor, which takes in-plane expansion mode as the working mode, is proposed in this paper. Its main structure is rectangular metal plate with four piezoelectric ceramics. First, suitable structural parameters of the ultra
Externí odkaz:
https://doaj.org/article/fa796386220a4436b371d1d663804cf4
Publikováno v:
IEEE Access, Vol 5, Pp 7362-7370 (2017)
Machining of hard and brittle materials is usually troublesome due to their high stiffness. In order to improve the processing speed of hard and brittle materials, ultrasonic assisted processing was developed. This paper reports a novel ultrasonic dr
Externí odkaz:
https://doaj.org/article/33927091e14c481c85de2facdccd6e67
Development of a Four-Feet Driving Type Linear Piezoelectric Actuator Using Bolt-Clamped Transducers
Publikováno v:
IEEE Access, Vol 5, Pp 27162-27171 (2017)
A four feet driving-type linear piezoelectric actuator, which achieves linear driving motion with step displacement of several microns by the alternating longitudinal motions of three bolt-clamped transducers, is designed and tested. The three transd
Externí odkaz:
https://doaj.org/article/bae5a8839226411b9f2e749f2b22deab
Publikováno v:
IEEE Access, Vol 4, Pp 2371-2378 (2016)
A new non-resonant-type piezoelectric actuator with unlimited stroke was proposed, in which two transducers operated in hybrid bending modes were used to generate the desired displacements with micrometer scale. Compared with the PZT stack, both posi
Externí odkaz:
https://doaj.org/article/72441ae7d9344c1f82510be02eedadaa
Publikováno v:
Sensors, Vol 18, Iss 4, p 1167 (2018)
It is important for companies to increase the efficiency of drilling as well as prolong the lifetime of the drilling tool. Since some previous investigations indicated that a superposition of well drilling with an additional vibration increases the d
Externí odkaz:
https://doaj.org/article/ed4a7bce5b414beea7315d8b9c422572
Publikováno v:
Advances in Mechanical Engineering, Vol 7 (2015)
An analytical model on electromechanical coupling coefficient and the length optimization of a bending piezoelectric ultrasonic transducer are proposed. The piezoelectric transducer consists of 8 PZT elements sandwiched between four thin electrodes,
Externí odkaz:
https://doaj.org/article/0465a87d8324466d873cbf569cf4c348
Publikováno v:
Sensors, Vol 17, Iss 7, p 1510 (2017)
A novel exciting method for a sandwich type piezoelectric transducer operating in longitudinal-bending hybrid vibration modes is proposed and discussed, in which the piezoelectric elements for the excitations of the longitudinal and bending vibration
Externí odkaz:
https://doaj.org/article/6206feabb8ed4edbbd0f5346012c1195