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57 results on '"Yang, Zexin"'

54. Segmentation of Point Cloud in Tank of Plane Bulkhead Type

Author

杨泽鑫 Yang Zexin, 郭 王 Guo Wang, 辛佩康 Xin Peikang, 胡敏捷 Hu Minjie, 程效军 Cheng Xiaojun, 李 泉 Li Quan, and 欧 健 Ou Jian

Subjects
business.industry, Acoustics, Point cloud, Computer vision, Segmentation, Artificial intelligence, Electrical and Electronic Engineering, business, Atomic and Molecular Physics, and Optics, Geology, Electronic, Optical and Magnetic Materials, Bulkhead (partition)
Published
2017
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56. Radar cross-section measurements of ice particles using vector network analyzer

Author

Yang Zexin, Jinhu Wang, Xiangchao Li, Qilin Zhang, Junxiang Ge, Yan-An Liu, and Ming Wei

Subjects
Physics, Radar cross-section, Cuboid, 010504 meteorology & atmospheric sciences, business.industry, General Physics and Astronomy, Particle swarm optimization, Method of moments (statistics), 01 natural sciences, lcsh:QC1-999, 010309 optics, Optics, 0103 physical sciences, Calibration, Particle, Particle size, business, lcsh:Physics, Microwave, 0105 earth and related environmental sciences
Abstract

We carried out radar cross-section (RSC) measurements of ice particles in a microwave anechoic chamber at Nanjing University of Information Science and Technology. We used microwave similarity theory to enlarge the size of particle from the micrometer to millimeter scale and to reduce the testing frequency from 94 GHz to 10 GHz. The microwave similarity theory was validated using the method of moments for single metal sphere, single dielectric sphere, and spherical and non-spherical dielectric particle swarms. The differences between the retrieved and theoretical results at 94 GHz were 0.016117%, 0.0023029%, 0.027627%, and 0.0046053%, respectively. We proposed a device that can measure the RCS of ice particles in the chamber based on the S21 parameter obtained from vector network analyzer. On the basis of the measured S21 parameter of the calibration material (metal plates) and their corresponding theoretical RCS values, the RCS values of a spherical Teflon particle swarm and cuboid candle particle swarm was retrieved at 10 GHz. In this case, the differences between the retrieved and theoretical results were 12.72% and 24.49% for the Teflon particle swarm and cuboid candle swarm, respectively.

Published
2016
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57. From oncolytic peptides to oncolytic polymers: A new paradigm for oncotherapy.

Author

Liu H, Shen W, Liu W, Yang Z, Yin D, and Xiao C

Abstract

Traditional cancer therapy methods, especially those directed against specific intracellular targets or signaling pathways, are not powerful enough to overcome tumor heterogeneity and therapeutic resistance. Oncolytic peptides that can induce membrane lysis-mediated cancer cell death and subsequent anticancer immune responses, has provided a new paradigm for cancer therapy. However, the clinical application of oncolytic peptides is always limited by some factors such as unsatisfactory bio-distribution, poor stability, and off-target toxicity. To overcome these limitations, oncolytic polymers stand out as prospective therapeutic materials owing to their high stability, chemical versatility, and scalable production capacity, which has the potential to drive a revolution in cancer treatment. This review provides an overview of the mechanism and structure-activity relationship of oncolytic peptides. Then the oncolytic peptides-mediated combination therapy and the nano-delivery strategies for oncolytic peptides are summarized. Emphatically, the current research progress of oncolytic polymers has been highlighted. Lastly, the challenges and prospects in the development of oncolytic polymers are discussed., Competing Interests: The authors declare that they have no conflict of interest., (© 2023 The Authors.)

Published
2023
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