Zobrazeno 1 - 10
of 297
pro vyhledávání: '"PAN Junjun"'
Autor:
YANG Puqiong, LIU Bo, JIANG Caichao, WEI Jianglong, XIE Yahong, XIE Yuanlai, PAN Junjun, HU Chundong
Publikováno v:
He jishu, Vol 44, Iss 8, Pp 91-96 (2021)
BackgroundThe ion source is one of the key components of the neutral beam injection system. Radio frequency (RF) ion source has the advantages of long life time, easy maintenance and long pules operation, which make it the main alternative source for
Externí odkaz:
https://doaj.org/article/69e0b2273a67407cb808c357c4087699
Reduced biquaternion (RB), as a four-dimensional algebra highly suitable for representing color pixels, has recently garnered significant attention from numerous scholars. In this paper, for color image processing problems, we introduce a concept of
Externí odkaz:
http://arxiv.org/abs/2408.05582
Autor:
Pan, Junjun
In this report, we discuss a simple model for RGB color and polarization images under a unified framework of quaternion nonnegative matrix factorization (QNMF) and present a hierarchical nonnegative least squares method to solve the factor matrices.
Externí odkaz:
http://arxiv.org/abs/2407.15557
Autor:
XIE Yahong, LIU Sheng, JIANG Caichao, PAN Junjun, XU Yongjian, ZHAO Yuanzhe, CUI Qinglong, XIE Yuanlai, HU Chundong
Publikováno v:
He jishu, Vol 45, Iss 7, Pp 070201-070201 (2022)
BackgroundThe high power ion source is the one of the key components of a neutral beam injection system. Long pulse operation of ion source is required for fusion sciences research, but challenges come from the easy break down when operated with long
Externí odkaz:
https://doaj.org/article/50389b14f64c4f9bac4bfbb6ba57775a
Publikováno v:
Jixie qiangdu, Vol 39, Pp 951-956 (2017)
For the research on the method of building the load spectrum of ZLK50 type loader hydraulic system under the actual working conditions,a measurement scheme of multiple working conditions of the hydraulic cylinder is proposed based on the signal wirel
Externí odkaz:
https://doaj.org/article/63c9b061026146e9b55bf187c351d70a
Node-level graph anomaly detection (GAD) plays a critical role in identifying anomalous nodes from graph-structured data in various domains such as medicine, social networks, and e-commerce. However, challenges have arisen due to the diversity of ano
Externí odkaz:
http://arxiv.org/abs/2310.11676
Autor:
WANG Haoming, HU Chundong, CHEN Shiyong, XU Yongjian, PAN Junjun, WEI Jianglong, LIU Wei, CUI Qinglong, XIE Yahong, XIE Yuanlai, LIANG Lizhen
Publikováno v:
He jishu, Vol 44, Iss 1, Pp 010602-010602 (2021)
BackgroundCesium injection can significantly reduce the work function of plasma grid surface of the radio frequency (RF) negative ion source, which is an effective way to promote the surface generation and improve the yield of H- ions.PurposeThis stu
Externí odkaz:
https://doaj.org/article/cd52609c797544368976c445945502b5
Autor:
Pan, Junjun, Ng, Michael K.
It is well-known that a complex circulant matrix can be diagonalized by a discrete Fourier matrix with imaginary unit $\mathtt{i}$. The main aim of this paper is to demonstrate that a quaternion circulant matrix cannot be diagonalized by a discrete q
Externí odkaz:
http://arxiv.org/abs/2302.04086
Autor:
Pan, Junjun, Ng, Michael K.
Polarization is a unique characteristic of transverse wave and is represented by Stokes parameters. Analysis of polarization states can reveal valuable information about the sources. In this paper, we propose a separable low-rank quaternion linear mi
Externí odkaz:
http://arxiv.org/abs/2207.14039
Existing keyframe-based motion synthesis mainly focuses on the generation of cyclic actions or short-term motion, such as walking, running, and transitions between close postures. However, these methods will significantly degrade the naturalness and
Externí odkaz:
http://arxiv.org/abs/2207.05906