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1)  delay and multiply
延时相乘法
2)  delay-and-multiply
延时相乘
1.
Carrier detection of direct sequence spread signals based on a delay-and-multiply device
基于延时相乘结构的直扩载波最优检测
3)  delay-and-product
时延相乘
4)  tide rising duration
乘潮延时
1.
The relations between tide rising duration and water depth of channel and basin are described in the paper and two proposals are also raised in it.
阐述在港口工程设计中乘潮延时与航道、港池水深的关系,提出了两点建议。
5)  delay multiplication
延迟相乘
1.
Based on the typical characteristic that the signal transmitted in each hop by a correlated frequency hopping spread spectrum communication system is a frequency-fixed sine wave,the paper looks into the hop-duration based invariability of the correlated frequency hopping spread spectrum signals after delay multiplication low-pass processing.
从相关跳频扩谱系统在每一跳中发送频率恒定的正弦波这一典型特征出发,对相关跳频扩谱信号在经过延迟相乘低通处理后所具有的基于跳驻留时间的恒值特性进行了研究。
2.
The DS-SS/(Binary Phase Shift Keyed,BPSK) signal detection approach with delay multiplication multi-correlation is proposed in this paper.
提出一种基于过采样的直接序列扩谱(Direct-Sequence Spread Spectrum,DS-SS)/二进制相移键控(Binary Phase Shift Keyed,BPSK)信号延迟相乘多重相关检测方法,并推导了延迟相乘相关原理,分析了基于过采样的延迟相乘相关方法对输出信噪比(Signal to Noise Ratio,SNR)的影响。
6)  single phase product method
单时相乘积法
1.
With NOAA/AVHRR data, the single phase product method is used to estimate the soil moisture of surface cover, and NDVI is used to estimate vegetation cover, and further more the relationship between percentage of soil moisture, vegetation cover and time of sandstorm in north of China was analyzed.
利用NOAA/AVHRR数据,采用单时相乘积法计算土壤湿度,采用NDVI指示地表状况,利用地表土壤相对湿度旬平均值、NDIV旬平均值、风速以及三者的综合值与实测的沙尘暴旬数据,定性和定量分析了中国北方地区土壤湿度、植被覆盖、风速与沙尘暴发生的关系,结果表明风速是影响沙尘暴发生的关键因素,与沙尘暴发生成正比;土壤相对湿度与地面植被在一定程度上影响了沙尘暴的发生,与沙尘暴的发生成反比;由平均风速、土壤相对湿度和NDVI组成的综合因子与沙尘暴发生次数及能见度的相关性高于风速与后二者的相关性,因此综合因子具有指示和监测沙尘暴发生的潜力。
补充资料:延时曝气法
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性质:废水活性污泥法的一种改良型,系在曝气系统内提供了好氧污泥消化过程。在此法中,有机物质在好氧条件下趋于稳定,并将最后产物以气体形式排放到空气中,使处理出水仅含有细小悬浮物质和溶解物质。其曝气时间长达24h或24h以上,以促使生物质以内源呼吸方式进行好氧消化。此法的主要优点是污泥产量低,工艺灵活性强,适用于小城镇和小型处理装置。

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