Results 71 to 80 of about 3,423 (187)

A Comparison of Galacticus and COZMIC WDM Subhalo Populations

The Open Journal of Astrophysics
We present a comparative analysis of warm dark matter (WDM) subhalo populations generated by the semi-analytic model Galacticus and the COZMIC suite of dark matter-only $N$-body simulations. Using a range of thermal relic WDM particle masses (3--10 keV),
Jack Lonergan, Andrew Benson, Xiaolong Du   +2 more
doaj   +1 more source

Can We Constrain Warm Dark Matter Masses with Individual Galaxies?

The Astrophysical Journal
We study the impact of warm dark matter (WDM) mass on the internal properties of individual galaxies using a large suite of 1024 state-of-the-art cosmological hydrodynamic simulations from the DREAMS project.
Shurui Lin, Francisco Villaescusa-Navarro, Jonah Rose, Paul Torrey, Arya Farahi, Kassidy E. Kollmann, Alex M. Garcia, Sandip Roy, Mark Vogelsberger, Nitya Kallivayalil, Yi-Fu Cai, Wentao Luo   +11 more
doaj   +1 more source

IP over WDM的演进之路

Guangtongxin yanjiu, 2003
Internet流量的指数级增长和波分复用 （ WDM）在传送网中的主导地位 ,使得直接利用 WDM技术承载 IP业务的 IP over WDM光网络成为理想的选择 .通过对其三个发展阶段的介绍和分析 ,文章旨在探讨 IP over WDM光网络的演进思路 .
潘勇, 张民, 叶培大
doaj  

New Galaxy UV Luminosity Constraints on Warm Dark Matter from JWST

The Astrophysical Journal
We exploit the recent James Webb Space Telescope (JWST) determination of galaxy UV luminosity functions over the redshift range z = 9–14.5 to derive constraints on warm dark matter (WDM) models. The delayed structure formations in WDM universes make high-
Bin Liu, Huanyuan Shan, Jiajun Zhang
doaj   +1 more source

An 8 × 200 Gbps wavelength-division multiplexing transmitter using lithium tantalate

PhotoniX
Large-capacity data transmission is increasingly required to meet the growing demands of big data and artificial intelligence applications. Wavelength-division multiplexing (WDM) technology is a reliable method of increasing link capacity by enabling ...
Mingyu Zhu, Fei Huang, Dajian Liu, Weihan Wang, Aoyun Gao, Weike Zhao, Shi Zhao, Daixin Lian, Chun Gao, Zejie Yu, Daoxin Dai   +10 more
doaj   +1 more source

21世纪的通信主干:波分复用全光通信网

Guangtongxin yanjiu, 1999
全光网络是目前光通信研究的热点。本文首先简要分析了波分复用ＷＤＭ全光网络的产生原因，接着介绍了ＷＤＭ全光网络的概念及其优势。之后通过对两个典型的ＷＤＭ全光试验网的介绍，从一个侧面展示了它的发展现状。最后介绍了ＩＴＵ－Ｔ在ＷＤＭ全光网络标准化研究方面的最新进展。
刘伟福, 吴志坚
doaj  

WDM光传送网的设计与操作

Guangtongxin yanjiu, 2001
综述了 WDM光传送网的设计和操作问题 .首先介绍了一些基本概念 ,然后给出了有关 WDM光传送网设计的不同问题及其设计方法 ,最后描述了对 ...
孙俊
doaj  

全光光孤子WDM到OTDM转换的概念系统

Guangtongxin yanjiu, 1997
提出了在未来的光孤子波分复用／时分复用（ＷＤＭ／ＯＴＤＭ）网络中由ＷＤＭ到ＯＴＤＭ节点处的转换复用的概念系统。主要的模块是完成波长转换的基于交叉增益调制的半导体光放大器（ＳＯＡ）、同步和延时及时分复用模块。通过ＳＯＡ可以实现全光的ＷＤＭ到ＯＴＤＭ的波长转换和复用，是ＷＤＭ ...
张春燕, 叶培大
doaj  

Planning of Arrayed Waveguide Grating (AWG) for 16x16 Channels Transmission System of Dense Wavelength Division Multiplexing (DWDM)

JAREE (Journal on Advanced Research in Electrical Engineering), 2018
Arrayed Waveguide Grating (AWG) Technology, one technique of dividing the channel into smaller sub-channels by adjusting the fixed array length increment.
Sri Rahayu
doaj  

Integrated mechanistic and bioinformatics analysis of a traditional Chinese medicine compound MangHuang solution against <i>Candida albicans</i>. [PDF]

Front Cell Infect Microbiol
Zhu H, Ma P, Yuan Y, Chen Y, Shi H, Huang C, Zhou Y, Jing R, Cao M, Zhang D, Luo Y.   +10 more
europepmc   +1 more source