Chinese translation for "population difference"
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- 布居差
粒子数差
Related Translations:
- Example Sentences:
| 1. | Understanding population differences can help us understand our history
了解群体差异能帮助我们了解我们的进化历史。 | | 2. | Existence and application of positive periodic solution of a delay population difference equations
时滞对数种群差分方程正周期解的存在性与应用 | | 3. | Genetic polymorphism and the population difference of 7 y - str loci and haplotypes in chinese han and japanese populations
位点及单倍型的遗传多态性和群体差异 | | 4. | In chapter 5 , we make numerical calculation , then analyze the properties of the population distribution , the gain , the coherence term and population difference , and validate the transient light amplification mechanism of this system
第五章我们根据数值计算结果分析了粒子数分布、增益、相干项和粒子数差的瞬态演化过程，验证了系统产生增益的机制。 | | 5. | In chapter 4 , we study nonlinear theory of the open v - type system with two - color incoherent pump . in this chapter , we discuss the conditions for the onset of lwi and the stability of the system in the limit of strong driving field , and the effect of incoherent pump rate rt on the gain , dispersion and population differences . we also discuss the effect of nonlinearities and the effect of pumping rate threshold of the pumping field
接着第四章讨论双色非相干泵浦系统的非线性理论，分析了强驱动场情况下的lwi产生的条件和稳定性、非相干泵浦速率r ~ 1对增益、色散和粒子数差的影响；讨论了该系统的非线性效应和非线性对非相干泵浦速率r ~ 1与r阈值关系的影响。 | | 6. | In section one , we analyze the mechanism of lwi gain , and study the effects of the rabi frequency q of the driving field , the injection rates ratio rb / r ~ , the exit rate r0 , the decay rates ~ and rab between atomic levels , as well as 3 incoherent pump rate r on the gain without inversion , dispersion and population difference of the system . in section two , we discuss the effects of the detuning of the driving field and the probe field on the gain
在第一节中分析了无粒子数反转激光增益产生的机制、研究了驱动场的rabi频率、粒子注入速率比值r _ b / r _ c 、粒子退出速率r _ o 、能级间的自发衰减速率r _ ( c - b ) 、 r _ ( a - b )和非相干泵浦速率r对增益、色散和粒子数差的影响；第二节讨论了驱动场和探测场的失谐对无粒子数反转激光增益的影响。 | | 7. | The analytical solutions of the gain , dispersion and population difference in the steady state of an open ladder lasing without inversion ( lwi ) system are at first given when the phase fluctuation of the driving field is considered . then the effects of the driving field phase fluctuation on the gain , dispersion and population difference are analyzed by the numerical results from the analytical solutions . our research shows that the phase fluctuation of the driving field will results in a finite line width ; with the line width increasing , the gain decreases monotonously , however , variation of the dispersion isn ? t monotonous , it has a maximum value when the line width takes some value ; the line width varying can ? t lead to change lasing from without to with population inversion
给出了有驱动场位相涨落的开放的梯型无粒子数反转激光( lwi )系统增益、色散和布居数差的定态解析解,进而用得到的数值计算结果分析了驱动场位相涨落对增益、色散和布居数差的影响.研究结果表明,驱动场位相涨落将导致有限线宽;随着线宽的增加,系统增益单调地减小,但系统色散的变化并不是单调的,当线宽取某个值时,色散有极大值;线宽的变化不能导致无反转激光向反转激光的转变 | | 8. | Objective to establish a complex pcr method and to investigate the genetic polymorphism and population difference of three loci on y - chromosome , so as to provide a database for forensic medicine casework . methods edta - blood specimens were collected from 163 unrelated males in han population in taiyuan . different tissues of one corpse were analyzed including blood , muscle , liver and kidney
方法( 1 )样本采集：随机抽取163名太原地区汉族无亲缘关系的男性个体的静脉血， edta抗凝，进行dys390 、 dys391和dys393基因座等位基因及单倍型频率分布调查；采集同一尸体血液、肌肉、肝脏、肾组织进行同一性检测；采集20例两代家系血进行突变观察；取20例女性个体血进行男性特异性检验。 | | 9. | In chapter 2 , we analyzed the effect of the driving field phase fluctuation on the gain and dispersion and population differences in an open v - type three - level non - inversion lasing system and then discussed the effects of the incoherent pumping rate , the ratio of the atomic injection rates , the atomic exit rate , the rabi frequency of the probe and driving fields and their corresponding detuning on the gain , dispersion and population differences of the system , and got some important conclusions different from those in closed or other open systems
第二章讨论了驱动场的相位涨落对开放的v型三能级无反转激光系统的影响，根据解析解的数值计算结果讨论了非相干泵浦速率、粒子注入速率之比、粒子退出速率、探测场和驱动场的rabi频率和相应失谐对系统增益、色散和粒子数差的影响，得到了一些不同于封闭的v型系统及其他开放的无反转激光系统的重要结论。 |
- Similar Words：
- "population development" Chinese translation, "population development strategy" Chinese translation, "population deviation" Chinese translation, "population di ersion" Chinese translation, "population die-off" Chinese translation, "population dispersal" Chinese translation, "population dispersion" Chinese translation, "population distribution" Chinese translation, "population diversity" Chinese translation, "population division" Chinese translation
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