Zobrazeno 1 - 10
of 5 149
pro vyhledávání: '"Zhang Haijun"'
Publikováno v:
Tongxin xuebao, Vol 45, Pp 214-225 (2024)
The strong coupling characteristics of the imperfect channel state information and the imperfect successive interference cancellation makes it faces the great challenge in evaluating the secure performance accurately for the simultaneously transmitti
Externí odkaz:
https://doaj.org/article/cfba846de5c842dfa336920fb13154b9
Publikováno v:
Dianxin kexue, Vol 40, Pp 53-63 (2024)
The integrated deployment of 5G and time sensitive network (TSN) is an important foundation for realizing wireless industrial Internet and flexible manufacturing. How to guarantee the high-quality transmission simultaneously of diverse industrial ser
Externí odkaz:
https://doaj.org/article/0ad7828c2eb34cf592e75f7a0c168cbc
Autor:
LIU Shengli, ZHANG Haijun, CHENG Jian, ZHONG Yuxiu, XU Jun, JIANG Long, WANG Yi, SU Sheng, HU Song, XIANG Jun
Publikováno v:
发电技术, Vol 44, Iss 2, Pp 171-182 (2023)
Aiming at the problems of slagging and high temperature corrosion of water wall in a 1 000 MW ultra-supercritical double tangential boiler, the mechanism of slagging and high temperature corrosion of boiler was analyzed by X-ray diffraction (XRD) and
Externí odkaz:
https://doaj.org/article/8b54a9c9f6f3457894803ba0363faded
Autor:
Zhang Haijun, Kong Lejia
Publikováno v:
SHS Web of Conferences, Vol 187, p 02027 (2024)
With the proposal of the new liberal arts concept, the traditional liberal arts education model is facing new challenges. In the future, more attention will be paid to the cultivation of composite talents, and cross-integration knowledge will become
Externí odkaz:
https://doaj.org/article/f8f2d48e3fb34868981dc0c7317d4e0a
Publikováno v:
Gong-kuang zidonghua, Vol 48, Iss 8, Pp 85-91 (2022)
In order to study the influence of moisture intrusion on crack propagation and failure mode of loaded coal, uniaxial compression tests and acoustic emission monitoring of coal with different moisture contents are carried out. The stress-strain charac
Externí odkaz:
https://doaj.org/article/62924089bc1d42798b3cd1d1696eb493
Publikováno v:
Gong-kuang zidonghua, Vol 48, Iss 2, Pp 29-34,41 (2022)
In order to solve the problem that non-line-of-sight(NLOS) interference affects wireless signal transmission in complex underground environment of coal mines, an ultra wide band(UWB) personnel positioning system in coal mine is designed. The system u
Externí odkaz:
https://doaj.org/article/cafb3b713dc14b3588dbf4ced3dcf73f
Since the invention of GPT2--1.5B in 2019, large language models (LLMs) have transitioned from specialized models to versatile foundation models. The LLMs exhibit impressive zero-shot ability, however, require fine-tuning on local datasets and signif
Externí odkaz:
http://arxiv.org/abs/2408.10691
By using an parametric value function to replace the Monte-Carlo rollouts for value estimation, the actor-critic (AC) algorithms can reduce the variance of stochastic policy gradient so that to improve the convergence rate. While existing works mainl
Externí odkaz:
http://arxiv.org/abs/2408.06945
This paper is concerned with unmanned aerial vehicle (UAV) video coding and transmission in scenarios such as emergency rescue and environmental monitoring. Unlike existing methods of modeling UAV video source coding and channel transmission separate
Externí odkaz:
http://arxiv.org/abs/2408.06667
This letter proposes a pilot-aided joint time synchronization and channel estimation (JTSCE) algorithm for orthogonal time frequency space (OTFS) systems. Unlike existing algorithms, JTSCE employs a maximum length sequence (MLS) rather than an isolat
Externí odkaz:
http://arxiv.org/abs/2408.04192