http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Reconfigurable Auxiliary Circuits for Transient Improvement in Multiprocessor Power Supplies
Yijie Qian,Xinru Wang,Lingyun Li,Shen Xu,Weifeng Sun 전력전자학회 2023 ICPE(ISPE)논문집 Vol.2023 No.-
To meet the requirements of faster transient response in multiprocessor power supplies, this paper proposes a new auxiliary circuit that can be shared between several loads. The auxiliary circuit can connect to any load during the transient by reconfiguring the energy path. Costs and space are further saved since only one auxiliary circuit is needed, no matter how many processors the system has. The design of the auxiliary circuit is explained and implemented as a two-phase interleaved buck converter with several switches. Simulation results for a 250A step current with a slew rate of ±1200A/μs and experimental results for a 70A step current with a slew rate of -150A/μs are provided for verification, showing a 44% reduction in the overshoot voltage, a 34% reduction in the undershoot voltage, and nearly half the output capacitor area savings.
Self-Cleaning and Antifouling Properties of Silica/Octadecylamine-Coated Cotton Fabrics
Yuzhu Jin,Ying Liu,Xinru Li,Tian Zhong 한국섬유공학회 2023 Fibers and polymers Vol.24 No.11
Due to the multifaceted application potential, hydrophobically modified cotton fabrics have gathered a lot of attention in recent years. This study developed a self-cleaning and antibacterial cotton fabric that combines self-cleaning and antifouling properties. Dopamine was oxidized and self-polymerized on the surface of cotton fabric, and the polydopamine layer has adhesion properties and reactive activity. Therefore, it can adhere to hydrophobic silica microspheres while reacting with octadecylamine. As a consequence of the modification of the cotton fabric, excellent hydrophobicity (with a contact angle of 145°) as well as excellent stability in acid and alkali solutions and washing stability were developed. There is not much loss in the mechanical properties of the modified cotton fabric, and the higher contact angle gives the cotton fabric self-cleaning properties while resisting bacterial adhesion, with the bacteria adhesion number reduced by 50% and 90% for E. coli and S. aureus, respectively.
Echinacoside Prevents Sepsis-Induced Myocardial Damage via Targeting SOD2
Jingxiang Wu,Xingji You,Xin Li,Zuojing Zhang,Xiaoxuan Zhang,Yibo Yin,Xinru Yuan 한국식품영양과학회 2024 Journal of medicinal food Vol.27 No.2
Echinacoside (ECH) is a prominent naturally occurring bioactive compound with effects of alleviatingmyocardial damage. We aimed to explore the beneficial effects of ECH against sepsis-induced myocardial damage andelucidate the potential mechanism. Echocardiography and Masson staining demonstrated that ECH alleviates cardiac functionand fibrosis in the cecal ligation and puncture (CLP) model. Transcriptome profiling and network pharmacology analysisshowed that there are 51 overlapping targets between sepsis-induced myocardial damage and ECH. Subsequently, chemicalcarcinogenesis-reactive oxygen species (ROS) were enriched in multiple targets. Wherein, SOD2 may be the potential targetof ECH on sepsis-induced myocardial damage. Polymerase chain reaction results showed that ECH administration couldmarkedly increase the expression of SOD2 and reduce the release of ROS. Combined with injecting the inhibitor of SOD2, thebeneficial effect of ECH on mortality, cardiac function, and fibrosis was eliminated, and release of ROS was increased afterinhibiting SOD2. ECH significantly alleviated myocardial damage in septic mice, and the therapeutic mechanism of ECH isachieved by upregulating SOD2 which decreased the release of ROS.
Dan Wang,Xin Wen,Xinyu Zhang,Yadong Hu,Xinru Li,Wenxu Zhu,Tao Wang,Shaowu Yin 한국유전학회 2018 Genes & Genomics Vol.40 No.11
Hypoxia seriously affects the innate immune system of fish. However, the roles of suppressor of cytokine signaling (SOCS), pivotal anti-inflammatory genes, in response to hypoxia/reoxygenation remain largely unexplored. The primary objective of this study was to elucidate the function of SOCS genes under acute hypoxia and reoxygenation in pufferfish (Takifugu fasciatus). In the present study, SOCS1, 2 and 3 were identified in T. fasciatus referred to as TfSOCS1, 2 and 3. Then, qRTPCR and western blot analysis were employed to assess their expressions at both the mRNA and protein levels. Tissue distribution demonstrated that the three SOCS genes were predominantly distributed in gill, brain and liver. Under hypoxia challenge (1.63 ± 0.2 mg/L DO for 2, 4, 6 and 8 h), the expressions of TfSOCS1 and 3 in brain and liver at the mRNA and protein levels were significantly decreased, while their expressions showed an opposite trend in gill. Different from the expressions of TfSOCS1 and 3, the expression of TfSOCS2 was inhibited in gill, along with its increased expression in brain and liver. After normoxic recovery (7.0 ± 0.3 mg/L of DO for 4 and 12 h), most of TfSOCS genes were significantly altered at R4 (reoxygenation for 4 h) and returned to the normal level at R12 (reoxygenation for 12 h). SOCS genes played vital roles in response to hypoxia/reoxygenation challenge. Our findings greatly strengthened the relation between innate immune and hypoxia stress in T. fasciatus.