Zobrazeno 1 - 10
of 429
pro vyhledávání: '"张乐"'
Publikováno v:
Tianjin Medical Journal. Aug2024, Vol. 52 Issue 8, p893-896. 4p.
Publikováno v:
Research of Soil & Water Conservation. Jun2024, Vol. 31 Issue 3, p265-275. 11p.
Publikováno v:
Guangtongxin yanjiu, Vol , Pp 16-18 (2012)
网络管理和维护一直是保证网络正常运行、提高客户感知的重要手段。PON(无源光网络)作为宽带接入的主流技术正被各大运营商广泛采用,如何对PON进行有效的管理维护成为各方关注的重点
Externí odkaz:
https://doaj.org/article/f8a011ce41cf498e9b779fc461fba35a
Publikováno v:
Guangtongxin yanjiu, Vol , Pp 54-56 (2010)
文章提出一种复式矩形光子晶体结构,首先利用平面波展开法(PWM)计算这种光子晶体的能带结构,然后对结构参数值进行优化,得到较大的光子带隙。分析结果表明,当采用单晶硅作为介质柱材
Externí odkaz:
https://doaj.org/article/19c69fc424e246b5b21c4eeea280524e
Publikováno v:
Transactions of the Chinese Society of Agricultural Engineering. Mar2024, Vol. 40 Issue 6, p72-78. 7p.
Publikováno v:
Shandong Medical Journal. 11/5/2023, Vol. 63 Issue 31, p19-23. 5p.