Together with predation, it is the most important density-dependent factor in regulating population growth.
在调节种群增长方面,它与捕食一起是最重要的密度制约因子。
Effects of distance-dependent and density-dependent.
密度和距离制约。
There is no need to regard density-dependent factors as having any special importance.
没有必要认为密度制约因素具有任何特殊的重要性。
Seasonal effects did not appear to be responsible for the delayed density-dependent effects on survival.
季节性影响看来与对生存的延缓性密度依赖效应无关。
There are as well as density-dependent biological factors such as disease, predation, and intraspecific competition .
还有密度制约的生物因素,诸如病害、捕食和种内竞争等。
Furthermore, the conclusion based on the constant viscosity coefficient is quite different from the density-dependent viscosity one.
另外,常粘性系数的情形与粘性依赖于密度的情形在结论上有很大不同。
The particle size of the feed must be well controlled to reduce size effect and make the particle motion primarily density-dependent.
还必须很好地控制给料的粒度,以减少粒度效应,使矿粒的运动主要按比重进行。
Properties of nuclear matter and neutron star are described in relativistic mean field theory with density-dependent effective interactions.
基于密度相关有效相互作用的相对论平均场理论,研究了核物质和中子星的性质。
But it now seems clear that all populations are regulated by a mixture of density-dependent and density-independent effects in varying proportions.
但是,现在显得很清楚的是,所有种群都受“种群密度相关”和“种群密度无关”两类因素在不同程度上的共同制约。
HW-1 cells from high seawater-containing medium grew independently of cell-density, while those from low-seawater media (10% or less) showed density-dependent growth.
高海水浓度培养条件下的HW—1的细胞生长没有密度依赖性,而低海水浓度(10%或更低)培养条件下的细胞生长具有一定的密度依赖性。
We improve the method calculating the bulk viscosity naturally and apply it to the density dependent model.
我们改进了计算体粘滞系数的方法使之更为自然并应用于密度依赖模型。
But if above positive real condition is satisfied only within some frequency range, the convergence of FXLMS algorithm is dependent on the spreading of power spectral density of the reference signal.
若上述正实条件仅在某些频带上满足,则FXLMS算法的收敛将依赖于参考信号功率谱密度的分布。
The effect was time and cell density dependent.
此效应具时间和细胞浓度依赖性。
The evolution opera tor, the reduce density operator and the dynamical properties of the field entropy evolution in the intensity - dependent coupling multiphoton J - C model are studied.
研究了依赖强度耦合多光子J—C模型的演化算符,约化密度算符及其场熵特性。
There was no density dependent effect in egg period.
实验结果表明:二斑叶螨卵期不存在密度效应;
Population parameters such as birth and death rates which vary with density are said to be density dependent.
如果种群参数如出生率和死亡率随种群密度的变化而变换,就可以说是密度制约的。
We made improvement to the probability density function upon which the weight calculation is dependent in the stage of update, and established an improved EPF.
通过在更新阶段对权值计算所依赖的概率密度函数做出改进,得到改进的EPF算法。
Early glycated low density lipoprotein (LDL) was not recognized by this receptor. AGEP BSA elevated cytosolic free calcium in a concentration dependent manner.
通过该受体介导,平滑肌细胞可内化、代谢AGEP.AGEP使胞浆游离钙呈浓度依赖性升高;
In the moving vortex lattice phase the time dependent voltage is periodic with time, and the frequency of voltage is proportional to the current density.
在运动涡旋相,电压的轨迹相对时间是周期性的,其振动频率与电流密度成正比。
The simulation shows that the transfer efficiency, stored energy density distribution and uniformity of the pump radiation are dependent on the pumping cavity geometry.
模拟结果表明,光传输效率、储能密度分布和泵浦均匀性与泵浦腔几何构形有关。
This work indicates the necessity of using temperature dependent nucleon density in dealing with optical potentials at finite temperature.
通过和以前工作的比较,强调了采用温度有关核密度的必要性。
The results showed that the selective feeding behavior of C. sinicus was dependent on food density.
结果表明,中华哲水蚤对浮游植物的选择性摄食具有食物密度依赖性。
SRS theoretical spectrum from LPI2D code are agreeable with experiment spectrum. The results show SRS spectrum are dependent closed in plasma density distribution in cavity target.
由LPI2D程序计算的激光等离子体srs谱较好地再现了实验谱,并由此表明SRS谱与腔靶晕区等离子体密度分布密切相关。
Consequently, it is necessary to describe earthquake ground motion with local spectral density, which is time-dependent and can reflect the non-stationary characteristics.
因此采用能反映时频非平稳特性的时变谱密度(即局部谱密度)来描述地震地面运动是非常必要的。
Spectroscopic properties of selected systems have been investigated by time dependent density functional theory (TD-DFT).
体系光谱计算采用时间依赖的密度泛函方法(TD-DFT)。
The equations of motion for final nuclei are discussed in density dependent relativistic hadrons field theory.
讨论密度相关强子场理论中终核的运动方程。
The ability of the ionosphere to reflect these waves is dependent upon normal variations in the electron density at different levels.
电离层反射电波的能力取决于不同高度上电子密度的正常差别。
These results indicate that the non-specific immunity of crucian carp is a time and density dependent effect.
说明嗜水气单胞菌与鲫鱼非特异性免疫功能之间呈现一定的时间效应和浓度依赖性。
They include high lexical density, lack of redundancy, infrequent occurrence of hypotactically dependent clauses and preference for syntactic pauses.
它包括词汇密度高,没有冗长罗嗦成分,较少出现形合现象,句法停顿较多。
In rare plasma, the strength of the wake-field depends on the background plasma density, while the maximum wake potential of wake-field is dependent on it.
同时发现在稀薄等离子体中激发的尾波势场与等离子体的密度几乎无关,而激发的尾波场最大电场强度与等离子体的密度有关。
应用推荐