[其它] 离散多音频塑料光纤通信系统容量计算

说明：针对未编码离散多音频调制(DMT)的阶跃折射率塑料光纤(SI-POF)通信系统传输容量的计算，采用均匀功率谱密度(PSD)注入的方法，对SI-POF 强度调制直接检测(IM/DD)的通信传输进行数学建模。借助一阶低通和高斯低通信道模型，推导出基于信噪比(SNR)间隔的信道容量和最佳使用带宽的数学计算模型。在不同使用带宽下对系统容量进行了理论分析与数值计算，并分别取不同长度的SI-POF 进行实物传输测试。理论计算和传输实验表明了该计算模型的准确性，且信道容量与等效信噪比呈正向分布，与传输距离呈反
<weixin_38698927> 上传 | 大小：3mb

[其它] YoutubeSourceParserKit：快速的YouTube链接解析器-源码

说明：YoutubeSourceParserKit ================== 适用于Swift的YouTube视频链接解析器。 从hellozimi的 ＃＃介绍 需要iOS 8或更高版本以及Xcode 7.0+ Swift支持使用动态框架，因此仅在iOS> 8上受支持。 ＃＃安装 要通过CocoaPods安装，请将此行添加到Podfile 。 use_frameworks! 和 pod 'YoutubeSourceParserKit' 然后，运行以下命令： $ pod i
<weixin_42138788> 上传 | 大小：21kb

[其它] Intensity modulation of light by light in a periodically poled MgO-doped lithium niobate crystal

说明：In this Letter, we investigate a method for controlling the intensity of a light by another light in a periodically poled MgO-doped lithium niobate (PPMgLN) crystal with a transverse applied external electric field. The power of the emergent light ca
<weixin_38665822> 上传 | 大小：527kb

[其它] Combination of light-emitting diode positioning identification and time-division multiplexing scheme for indoor location

说明：A combination of light-emitting diode (LED) identification and a time-division multiplexing scheme is proposed in this Letter for indoor location-based service. With the scheme, the arrangement of white LED lamps and the structure of a data frame are
<weixin_38630139> 上传 | 大小：1mb

[其它] Ultrafast laser system based on noncollinear optical parametric amplification for laser spectroscopy

说明：We report the experimental demonstration of transform-limited sub-6 fs pulses at an optimal central wavelength by a tunable noncollinear optical parametric amplification (NOPA) source. Meanwhile, a white light continuum in the near-infrared (NIR) ran
<weixin_38674050> 上传 | 大小：449kb

[其它] 光子晶体光纤熔接过程中的空气孔力学特性

说明：在光子晶体光纤(PCFs)的熔接过程中,熔接能量和加热时间的控制是避免空气孔塌陷的关键所在。应用经典力学理论,提出了一种光子晶体光纤熔接过程中力学特性的数学模型,对熔接过程中光子晶体光纤空气孔的畸变情况及畸变对光纤模场分布变化引起的熔接损耗进行了分析。分析结果表明,通过控制熔接能量和熔接时间可以控制光子晶体光纤空气孔的畸变情况。根据理论分析结果,进行熔接实验,分析空气孔畸变引起的损耗情况。实验结果与理论值有很好的一致性。
<weixin_38692707> 上传 | 大小：522kb

[其它] High-power, high-energy Ho:YAG oscillator pumped by a Tm-doped fiber laser

说明：A high-power, high-energy Ho:YAG oscillator resonantly pumped by a Tm-doped fiber laser is presented. A maximum continuous output power of 38 W with a slope efficiency of 51.9% is achieved at the wavelength of 2.09 μm, and M2≈1.48. In the Q-switching
<weixin_38675970> 上传 | 大小：666kb

[其它] Two-dimensional vision measurement approach based on local sub-plane mapping

说明：The existing two-dimensional vision measurement methods ignore lens distortion, require the plane to be perpendicular to the optical axis, and demand a complex operation. To address these issues, a new approach based on local sub-plane mapping is pre
<weixin_38692162> 上传 | 大小：684kb

[其它] Phase-selective fluorescence of doped Ge2Sb2Te5 phase-change memory thin films

说明：In this Letter, new concepts of fluorescence phase-change materials and fluorescence phase-change multilevel recording are proposed. High-contrast fluorescence between the amorphous and crystalline states is achieved in nickel- or bismuth-doped Ge2Sb
<weixin_38699492> 上传 | 大小：339kb

[其它] Geometric optics interpretation for rainbow scattering of a chiral sphere

说明：Research on light scattering from a large chiral sphere shows that the rainbow phenomenon is different from that of an isotropic sphere. A chiral sphere with certain chirality generates three first-order rainbows. In this Letter, we present a geometr
<weixin_38506182> 上传 | 大小：382kb

[其它] 负载测试：短负载测试项目-源码

说明：＃如何运行测试并生成HTML报告信息中心 #jmeter -n -t Login.jmx -l csv / testreport -e -o html / testreport
<weixin_42134769> 上传 | 大小：2mb

[其它] Group velocity dispersion effect on the collapse of femtosecond laser pulses in air: a revised form for Marburger’s law

说明：The influence of group velocity dispersion (GVD) on the self-focusing of femtosecond laser pulses is investigated by numerically solving the extended nonlinear Schr?dinger equation. By introducing the GVD length LGVD into the semi-empirical, self-foc
<weixin_38645862> 上传 | 大小：224kb