Extinction相关论文
利用激光雷达米氏(Mie)散射回波信号与转动拉曼(Raman)回波信号的差值，结合已知的大气分子消光系数，构造纯气溶胶回波用以反演气溶胶......
利用米氏理论，对满足不同Junge谱型气溶胶的后向散射、消光以及两者之比对其折射系数实部和虚部的敏感性进行了数值计算，得出了有益......
When musician and naturalist Bernie Krause drops his microphones into the pristine coral reef waters of Fiji， he picks up......
It is given mathematical models and analyze the performance of polarizers and coupler in an all polarization maintaining......
Rattan-related products from China are popular and well known in international market, but China is facing shortage of ......
Lean premixed flame characteristics of several typical low calorific value (LCV) syngases (basis CO/H2/CH4/CO2/N2),inclu......
An all-fiber linearly polarized Raman fiber laser at 1120 nm is demonstrated. With a 1 070-nm linearly polarized Yb-dope......
In order to improve the performance of optical wavelength-selective switches based on double micro-ring resonators, an a......
A set-reset all-optical flip-flop(SR-AOFF) based on semiconductor optical amplifier Mach-Zehnder interferometer(SOA-MZI)......
A simple and cost-effective remodulation scheme using a two-section reflective semiconductor optical amplifier(RSOA) is ......
A novel photonic crystal fiber(PCF) polarization filter is designed and fabricated; it consists of two large apertures c......
By transferring 100 nm gold-coated CVD monolayer graphene onto the well-polished surface of D-shaped fiber, we achieve a......
目的采用条件性恐惧记忆消退模型研究文拉法辛对恐惧消退记忆获得以及巩固阶段的影响。方法实验大鼠在A环境接受听觉恐惧记忆训练，......
The Ireviken Event was the first Middle Paleozoic event consisting of synchronised faunal, isotopic and facies change to......
Two simplified models for predicting minimum extinguishing concentration(MEC) of ultrafine water mist(UFM)(...
Localized surface plasmon(LSPR) resonance and sensing properties of a novel nanostructure(sexfoil nanoparticle)are studi......
“I love you, but I know this other woman loves you and would love to spend some time with you.” My wife said. The o......
一、多项选择 1. National beauty and favorable environment make the scenic spot an_________ to tourists from home and ......
Atmospheric extinction is impacted by the chemical composition of particles.To better un-derstand the chemical compositi......
A novel scheme is proposed to transform an ultra-short optical pulse to a millimeter-wave frequencymodulated pulse by us......
设计了一套采用较直接方式测量水吸收系数的新装置。通过测量直射光穿透不同厚度水层后的辐照度,采用比值法消除了测量仪器对实验......
Involucre fossils of Carpinus, a northern temperate element, from the Miocene of China and the evolu
East Asia has long been recognized as a major center for temperate woody plants diversity. Although several theories hav......
目的采用条件性恐惧记忆模型研究IKK/NF-κ B信号通路在大鼠听觉恐惧记忆消退获得及巩固阶段的影响。方法成年SD大鼠接受BLA脑区核......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
CRITICAL EXTINCTION EXPONENTS FOR POLYTROPIC FILTRATION EQUATIONS WITH NONLOCAL SOURCE AND ABSORPTIO
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
The Survival Analysis of a Non-autonomous N-dimensional Volterra Mutualistic System in a Polluted En
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Negative carbon isotopic excursion on the Lower/Middle Cambrian boundary of Kaili Formation, Taijian
The stratigraphic division and correlation of the Lower/Middle Cambrian boundary is a global problem that has not yet be......
Protein synthesis inhibition in the basolateral nucleus of amygdala facilitates extinction of audito
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
We consider a population-size-dependent branching chain in a general random environment.We give sufficident conditions f......
Negative carbon isotopic excursion on the Lower/Middle Cambrian boundary of Kaili Formation, Taijian
The stratigraphic division and correlation of the Lower/Middle Cambrian boundary is a global problem that has not yet be......
87 stars in the NGC 6913 field with both UBV and Vilnius photometry are selected to be the sample. The membership probab......
Partial extinction, permanence and global attractivity in nonautonomous n-species Lotka-Volterra com
In this paper, the qualitative properties of general nonautonomous Lotka-Volterra n-species competitive systems with imp......
本文研究了一类非自治SIRS传染病模型.在比较弱的条件下,我们不仅得到了疾病强一致持续的充分必要条件,还证明了疾病强一致持续与......
考虑一类具有不同潜伏阶段的非自治HIV/AIDS传染病模型.用不等式分析法建立疾病的持久和灭绝的充分条件,得到染病者有最终下界的表......
Transmission and diffraction of radiation through a monolayer of monodisperse opaque spherical particles at different pa......
A non-autonomous SIR epidemic model of prey-predator with vaccination and time delay is investigated in this paper. And ......
研究了一类具有非线性发生率及隔离措施的随机SIQRS传染病模型,考虑了环境噪声对传染病动力学模型的影响,通过构造Liapunov函数,运......
最近一份令人震惊的报告显示,超过五分之一的枫树品种濒临灭绝,原因究竟是什么呢?More than one in five species of maple trees ......
期刊
本文利用全期望公式和全概公式对采取隔离措施来应对新冠肺炎疫情进行了分析,以实际问题引入较难的知识点,最终达到既解决实际问题......
讨论了非线性抛物方程初边值问题{δu/δt=△u＋λ｜u｜^γ-1u-βu^p,（x,t）∈Ω×（0，＋∞）u（x＋t）｜δΩ×（0，＋∞）=0，u（x＋0）=u0（x）,x∈Ω解的渐近性态，给......
本文利用积分均值法研究了伪酱油果蝇和锯形果蝇在污染环境中的数学模型,给出了两种群的生存阈值.......
对复合镀金属微球的红外消光特性进行了数值计算,结果表明,当壳层厚度小于某一值时,对数正态分布下的双层壳复合微球,在最佳中径附......
作者研究了初边值问题ut-△u-u＋｜△u｜^p=0，P∈（0，1）的非负古典解的有限时间熄灭，证明了熄灭现象的发生与区域Ω有关．对于Cauchy问题，上述方程......
建立并分析了一类疾病在捕食者中传播的非自治生态流行病模型.借助一种新的方法,在非常弱的条件下给出了捕食-食饵种群持久和灭绝......
