With PNG-compressed images, you do not provide the mask at all; the mask is derived from the alpha channel on the fly.
用了PNG格式的图像，你不再需要提供mask了。 mask自然而然的由PNG的透明通道提供。
Using this model, the parameters of HEMT such as channel conductance, transconductance, gate capacitance, and cut-off frequency are derived.
由本文模型还推导出了HEMT沟道电导、跨导、栅电容和截止频率等微波参数表达式。
Considering the disturbance of the plasma electrons at the beam-ion channel boundary, the eigen-equation of TM mode has been derived.
考虑束-离子通道边界上等离子体电子可能发生的扰动，导出了TM模本征方程的理论式。
The correlation between the effective energy of wind, and the wave, wind and siltation of channel was derived.
导出了“有效风能”与浪、沙、航道淤积之间的相关关系；
Based on the channel and detector characteristics of a submarine laser communication system, the output equation for the signal to noise ratio is derived and simplified.
根据激光对潜通信系统的信道特性和探测器特性，推导并简化了输出信噪比公式。
The area calculating formulas of burning surface and channel section have been derived by the grain geometry.
根据装药几何形状，导出了在火箭发动机工作过程中燃烧面积及通道截面积变化规律的计算公式。
Single user and multi-user BER performances of interleaved OFDM-based TDCS are also investigated in the AWGN channel. The approximate BER formula and BER lower bound formula are derived.
根据基于交织OFDM的TDCS模型，本文接着分析了其在AWGN信道中，单用户和多用户情况下的BER性能，得到了近似的BER公式。
The relation between channel spacing and effect of XPM and FWM in DWDM system was analyzed, and a new solution for simulation of high speed and long haul DWDM system was derived.
本文分析了DWDM系统中xpm和FWM效应随信道间距变化的关系，并提出了大容量长距离DWDM系统仿真的解决方案。
The model of the MIMO-OFDM system in doubly-selective channels is derived and a lower bound of mean squared error(MSE) of the channel estimator using frequency domain pilot is presented.
基于双衰信道的频域响应，提出了一类双衰信道下多天线正交频分复用（MIMO-OFDM）系统的最优化频域导频设计方案。
The LMMSE channel estimation algorithms based on Pilot-Assisted is investigated for MIMO-OFDM systems, and the Low-Bound of MSE for LMMSE channel estimation is derived.
该文对MIMO - OFDM系统中基于导频辅助的LMMSE信道估计算法进行了研究，导出了其估计均方差的下界。
The mean acquisition time of the FSASE method is derived by the generating function flow graph technique for the fading channel.
文中采用生成函数流图法推导出了衰落信道下FSASE算法平均捕获时间的闭式解。
Based on a channel model containing the information of the direction of arrivals (DOA), the spatial-temporal combined CMA was derived and it's convergence properties were analyzed.
基于包含信号到达方向(doa)的信道模型，推导出了CMA空时联合恒模算法，并分析了其收敛特性。
Timing acquisition is realized in symbol and frame rate and GLRT is derived under dense multipath channel, which is unrelated to the amplitude of the channel.
利用符号或帧速率来进行同步捕获，导出了与信道振幅无关的密集多径下同步捕获的广义似然比率测试(GLRT)，来估计出现在符号位的有效信号增益。
The results indicated that the sensitivity is appoximately proportional to the square root of the length of grating. And so does the result derived from Fourier analysis and spatial-frequency channel.
从空间频率通道的观点出发，也可推导出对比灵敏度是和条纹长度的平方根成正比。
With the information of multipath delays and angles, an estimator based on parametric channel model is derived and the estimator's performance is analysed.
由时延和角度信息，得到一种基于参数信道模型的信道估计方法。
Aimed at typical shape micro-channel (fissure) under slip confine condition, it used dauby fluid motion equation and momentum equation, derived pace bout and running resistance.
针对典型形状微通道(微缝隙)在滑移边界条件下，利用粘性流体运动方程和动量方程，推导出速度场和流动阻力。
Methods To introduce DNA encoding the wild- type and mutant channel into immortalized tyrosine hydroxylase- positive CNS- derived neurons, CAD cells.
方法给一类酪氨酸脱氢酶阳性的神经细胞（一种中枢神经源细胞），又称CAD细胞，引入由DNA编码的野生型和突变型离子通道。
Considering the practical case of delayed feedback environment, the closed-form expressions of system spectral efficiency under delayed channel were derived.
考虑反馈信道存在延时的实际情况，推导了系统在延时信道条件下的频谱效率表达式。
The formula derived in this paper is recommended to calculate the sensitivity of the annular-channel uniform transverse field flowmeter.
本文推导出的公式适于计算环形流道横向均匀磁场的电磁流量计的灵敏度。
The total call strength, access delay and average access calls for the main control channel are derived according to the initial call strength and discrete access frame length.
根据系统的初始呼叫强度和离散接入帧长推导出系统主控信道总的业务量、接入时延及每时隙的平均接入个数，并分析了离散接入帧长对上述参数的影响。
The smallest band-channel assignment can be derived from the formula.
根据该公式得到最小带宽信道数。
The formulations for the calculation of focussing parameters of the three iron bar-magnetic focussing channel are derived in this paper. The calculation results are consistent with the measurement.
推导了三铁块磁聚焦孔道聚焦参数的计算公式，其计算结果与实测作了比较。
The key and crux to improve capacity of a cellular system is to abate the Co-Channel Interference (CCI) derived from frequency reuse.
提高蜂窝系统容量的关键和难点在于减小由频率复用产生的同频干扰。
The FLMS algorithms for both the single channel and multi channel algorithms based on the subband structure are derived.
建立了相应的降噪模型，推导了基于子带分解的单道、多道算法。
When implemented in a derived class, begins an asynchronous operation to accept a channel of the type specified by the current channel listener within a specified interval of time.
当在派生类中实现时，开始一个异步操作以在指定时间间隔内接受当前通道侦听器指定的类型的通道。
It just used channel path with the 'best 'link quality, while discarding the cooperative transmission derived by parallel channel and the surrounding nodes.
它只是选取了具有“最好”链路质量的通路作为信息的传输载体，而没有利用并行的多模接口信道及周围多节点组成的协同传输优势。
According to the flow state in flume for spur and experimental data, the formulas for the mean velocity of main channel varying with distance downstream were derived with momentum principle.
本文根据丁坝作用后水槽中水流情况，采用动量方程结合试验资料，导出了丁坝下游主槽平均流速沿程变化的公式，以此为基础，提出了丁坝作用下河床冲刷段长度的计算公式。
The symmetric capacity of slowly fading channels with quantized channel side information (CSI) is investigated. Optimal quantization schemes under different power constraints are derived.
研究了慢变平衰落瑞利信道下，信道信息的量化反馈对系统对称容量的影响，给出了不同功率限制下的最优量化方案。
There is also a magazine of the same name published by Channel 4, and an annual exhibition, "Grand Designs Live", both derived from the success of the TV series.
还有一个由4频道发表的同名杂志，每年的展览，“大设计现场”，都从电视连续剧的成功产生。
There is also a magazine of the same name published by Channel 4, and an annual exhibition, "Grand Designs Live", both derived from the success of the TV series.
还有一个由4频道发表的同名杂志，每年的展览，“大设计现场”，都从电视连续剧的成功产生。
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