Browsing by Author "Xin Wang"

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Experimental Demonstration of Compact S-Band MW-Level Metamaterial-Inspired Klystron
(Institute of Electrical and Electronics Engineers Inc., 2023) Xin Wang; Xuanming Zhang; Jianjun Zou; Shaozhe Wang; Junjie Huang; Shifeng Li; Yongming Li; Yurong Liu; Min Hu; Yubin Gong; Edl Schamiloglu; B.N. Basu; Zhaoyun Duan
Metamaterials are artificially constructed subwavelength structures exhibiting unprecedented electromagnetic phenomena. In this letter, an S-band MW-level metamaterial-inspired klystron using all-metal complementary electric split ring resonators (CeSRRs) was realized in the experiment. The CeSRR-loaded interaction structure of the klystron developed here features a miniaturized structure, the volume of which is only about 0.44 of the conventional counterparts. The metamaterial-inspired klystron based on the interaction structure loaded with CeSRRs was designed, fabricated and assembled. Using a pencil beam with parameters of 120 kV/80 A in the hot-test, the klystron delivered the biggest output power of 5.51 MW with gain of 55.6 dB and electronic efficiency of 57.4% at 2.852 GHz. This compact metamaterial-inspired klystron has potential applications in proton therapy facilities, tokamaks for the low-hybrid wave heating, and accelerators. © 2022 IEEE.
Mitochondrial Dysfunction in Stroke: Implications of Stem Cell Therapy
(Springer US, 2019) Deepaneeta Sarmah; Harpreet Kaur; Jackson Saraf; Kanchan Vats; Kanta Pravalika; Madhuri Wanve; Kiran Kalia; Anupom Borah; Akhilesh Kumar; Xin Wang; Dileep R. Yavagal; Kunjan R. Dave; Pallab Bhattacharya
Stroke is a debilitating condition which is also the second leading cause of death and disability worldwide. Despite the benefits and promises shown by numerous neuroprotective agents in animal stroke models, their clinical translation has not been a complete success. Hence, search for treatment options have directed researchers towards utilising stem cells. Mitochondria has a major involvement in the pathophysiology of stroke and a number of other conditions. Stem cells have shown the ability to transfer mitochondria to the damaged cells and to help revive cell energetics in the recipient cell. The present review discusses how stem cells could be employed to protect neurons and mitochondria in stroke and also the various mechanisms involved in neuroprotection. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.