1) M-ary
M元
1.
Study on the wavelet packet based M-ary multicarrier spread spectrum system;
基于小波包的M元多载波扩频系统研究
2.
The algorithm can achieve BPSK DSSS in the in-phase branch based on the code phase,and the M-ary modulation in the orthogonal branch based on code polority.
该算法利用扩频码码极性特点在同相支路上进行BPSK调制的直接序列扩频传输,利用扩频码码相位特点在正交支路进行M元扩频传输。
2) M-A constituent
M-A组元
1.
Effects of M-A constituent on toughness of coarse grain heat-affected zone in HSLA steels for oil tanks
M-A组元对石油储罐用钢粗晶热影响区韧性的影响
2.
The experimental results showed that M-A constituents mainiy distributed at prior austenite grain boundaries at second peak temperature of 780 ℃, large particle M-A constituent and fine grain bainitic zone were formed at prior austenite grain boundaries at 840 ℃, and M-.
结果表明,二次峰值温度为780℃时,M-A组元在原奥氏体晶界成链状分布;二次峰值温度为840℃时,原粗晶区晶界位置生成了细晶贝氏体带,及大颗粒的M-A组元;二次峰值温度为900℃时,M-A组元弥散分布,原粗晶区的奥氏体晶界消失。
3) M-A constituents
M-A组元
1.
M-A constituents in local brittle zones of pipeline steel;
管线钢焊接局部脆化区的M-A组元
2.
The refining effect of the second phase particles CaO on γ grain boundary of coarse grain heat affected zone(CGHAZ) and the effect of M-A constituents in microstructure of CGHAZ on toughness were investigated.
分别研究了微钙C-Mn钢中分布的弥散的热稳定的第二相CaO粒子对焊接热影响粗晶区(CGHAZ)奥氏体晶粒的细化效果和CGHAZ显微组织中的M-A组元对冲击韧性的影响。
3.
The granularity and M-A constituents were etched by Lepera reagent.
用Lepera着色腐蚀剂腐蚀粒状贝氏体中的M-A组元,观察和研究了不同t8/5的热模拟条件下粒状贝氏体中M-A组元的形态、数量及分布特征。
4) M/A constituent
M/A组元
5) M-ary spread spectrum
M元扩频
1.
Performance analysis of a OCC M-ary spread spectrum system in Rician slow fading channel;
Rician慢衰落信道下的正交循环码M元扩频系统性能分析
2.
Performance analysis of an M-ary spread spectrum receiver using biorthogonal cyclic codes;
一种双正交循环码M元扩频接收机性能分析
3.
A differential detection method is proposed for M-ary spread spectrum signal process.
提出了一种M元扩频信号的差分检测方法,发端将输入的串行数据转换为并行数据,然后进行M元差分编码、M元扩频编码和载波调制。
6) quaternary LFM(Linear Frequency Modulation)
M元LFM
补充资料：(一)Corydalis turtschaninovii Bess.f.yanhusuo Y.H.Chou et C. C. Hsu 罂粟科植物(二)Rhizoma Cory-dalis元胡
分子式：
CAS号：
性质：中药。延胡索的干燥块茎。辛、苦，温。主要含生物碱(近20种)如黄连碱、原阿片碱、d-海罂粟碱等；另含大量淀粉和少量黏液质、树脂及挥发油。具有活血，利气，止痛，抗溃疡，抑制胃分泌，解胃痉挛，促进肾上腺皮质分泌等作用。用于胸胁，脘腹疼痛，经闭痛经，产后瘀阻，跌扑肿痛。毒副作用：血压略降，心率减慢，呼吸短暂兴奋，增大量呼吸抑制；镇静较深的催眠作用，四肢震颤性帕金森氏综合征。尿中有管型，数天后恢复。
CAS号：
性质：中药。延胡索的干燥块茎。辛、苦，温。主要含生物碱(近20种)如黄连碱、原阿片碱、d-海罂粟碱等；另含大量淀粉和少量黏液质、树脂及挥发油。具有活血，利气，止痛，抗溃疡，抑制胃分泌，解胃痉挛，促进肾上腺皮质分泌等作用。用于胸胁，脘腹疼痛，经闭痛经，产后瘀阻，跌扑肿痛。毒副作用：血压略降，心率减慢，呼吸短暂兴奋，增大量呼吸抑制；镇静较深的催眠作用，四肢震颤性帕金森氏综合征。尿中有管型，数天后恢复。
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