nuclear density

Improved nuclear density model and the nuclear effect in P-A Drell-Yan process

改进的核密度模型与强子-核Drell-Yan过程中的核效应

The development and application of ZHM-1 type nuclear density gauge controlled by micro-computer

ZHM-1型智能核密度计的研制与应用

Application of nuclear density apparatus in construction of Qin-Shen high speed railway

核子仪在秦沈高速铁路建设中的应用

Comparison of the test results by sand - cone method and nuclear density meter

砂锥法和核仪法密度试验比较

The application of nuclear density apparatus in compactness inspection

浅谈核子密度仪检测压实度

A Morphological Quantitative Analysis of Cell Nuclear Density in Walls of Human Umbilical Cord Vein

胎儿脐静脉管壁细胞核密度的形态定量研究

Further investigation on the orbital angular momentum distribution in nuclei and nuclear density

原子核内轨道角动量分布与核密度的进一步探讨

The magnetic resonance signal is proportional to nuclear density , magnetic moment and polarization ratio .

磁共振信号与所探测核的密度、磁矩和极化度成正比。

The calibration of nuclear density moisture gauge

核子密度计、湿度计的标定

The influence of the nuclear density distribution on k ~ + - ~ 6li scattering

核密度分布对K~+-~6Li散射的影响

Precipitation and soil saturation to early , edge by a nuclear density distribution depict , dependency structure using AIC criterion selection .

对前期降雨量与土壤湿度，边缘分布由核密度刻画，相依结构利用AIC准则进行选择。

When the nuclear density is near or greater than the saturation density , the sound-like non-trivial solution could be found .

当核密度靠近或者大于核物质的饱和密度时，这样的类声波非平庸解是可以存在的。

The paper determines compaction degree of subgrade making use of pumped sand , cutting ring , nuclear density instrument and drop hammer frequent mensuration methods .

采用灌砂法、环刀法、核子密度仪法、落锤频谱式快速测定仪（LY-I仪）法4种方法对检测路基压实度的测试结果进行了比较分析；

By classical Gaussian kernel function improvement , an initial understanding is acquired on the bandwidth parameters of the nuclear density function , as well as its characteristics and physical meaning .

本章通过对经典高斯核函数的改进，初步认识核密度函数的带宽参数的特征及物理意义。

The results show that it is feasible to e-valuate segregation by means of nuclear density and laser surface texture measurement , and control the temperature differentials in construction by infrared thermograph .

研究表明：使用激光断面仪和核子密度仪来评价混合料离析是较为快速有效的，而且对路面没有损坏；使用红外线温度记录仪可以有效控制现场施工温度离析，提高施工质量。

The nuclear density of enzyme group which increased rapidly within 12 hours increased slowly between 12 hours and 18 hours , and peaked at 18h , then decreased gradually to stabilization .

酶组牛黄核在12h内生长较快，12h～18h变为缓慢升高并于18h时达到高峰，随后逐渐下降至一相对稳定值。

Control systems generally use PLC , electromagnetic flow meter , nuclear density meter and other instruments and equipment . It is not only costly but also easier to be breakdown , and need frequent maintenance .

控制系统一般采用PLC、电磁流量计、核子密度计等仪表和设备，不仅成本高，而且很容易出故障，使用维护量大。

By using adjacent index , geographic concentration index , Lorenz curve and nuclear density analysis method to analyze the spatial distribution characteristics of leisure agriculture demonstration sites in Hubei province , and reviewing agricultural tourism spatial distribution characteristics in Hubei province .

通过运用最邻近指数、集中化指数、洛伦兹曲线、核密度分析等方法对湖北省休闲农业示范点空间分布特征进行深入分析，揭示湖北省农业旅游空间分布特征。

The result shows that BEN can improve the diamond nuclear density , better the uniformity of the diamond nucleus distributed on WC grains and add the effective bonding area between the film and the substrate to improve the adhesion of diamond coating .

结果表明，负偏压形核不仅能增加金刚石的核密度，还能改善金刚石核在WC晶粒上分布的均匀性，增加膜基有效结合面积，从而增加金刚石薄膜附着力。

The following results were noted : ( 1 ) The offsprings of group B showed cretinous defects at the age of 36 days : body underdevelopment , low motility , poor learning ability and decreased brain weight , total DNA and nuclear density as compared with the control group A.

B组仔鼠在36天龄时呈克汀病样改变：体重及运动量降低，学习能力下降，脑湿重、全脑DNA和核密度低于对照组A。

Thirty sets of ND-50 nuclear density gauge have been trial-produced or reproduced , and applied to control the quality in roller compacted concrete dam ( RCCD ) . for at least 5 γ 105 m3 in more than ten hydraulic and hydroelectric projects .

试制和改进试制了30套ND-50核子密度仪，应用于十余个水利水电工程碾压混凝土坝的质量控制，总方量超过5×10~5m~3。

The earliest anatomic changes were observed on cut surface of hypocotyl segments under optical microscope 24 h after NAA treatment : cytoplasmic and nuclear density became higher in a few of parenchyma cells adjacent to external phloem , followed by cell divisions and meristematic nodule formation ;

切片观察显示：在NAA诱导24h时，下胚轴切段维管柱中靠近外韧皮部外侧的薄壁细胞发生变化，细胞质变浓，细胞核变大，部分细胞分裂并形成分生组织结节；

A Universal Nuclear Level Density Formula and Its Parameters

普适费米气体型能级密度公式及其参数

Nuclear Level Density Phenomenological Expressions and Its Parameters

核能级密度的唯象表示及其参数

Nuclear Matter Density , Collision Number and Entropy in Dynamics Process of Intermediate High Energy Heavy Ion Collision

中高能重离子碰撞动力学过程中的核物质密度，碰撞数和熵

An introduction to ndh-a nuclear earth density moisture gauge

NDH-A型核土基密度、含水量联合测定仪的研制

The nuclear volume density and surface density decreased because the changes in the nucleus preceeded those in the cell body .

由于核固缩、核碎裂、核溶解早于细胞碎裂脱落，使细胞核的体密度和表面积密度明显减小。

When the exciton system closes to the statistical equilibrium , this exciton state density automatically approaches to the Fermi-gas nuclear level density with angular momentum .

当激子系统趋近统计平衡时，该公式就自动过渡到具有角动量的费米气能级密度公式。

Comet assay showed that the nuclei form a distinct tail after electrophoresis , and the nuclear optical density decreased after Dio effecting . The difference was statistically significant , ( P < 0.01 ) .

彗星电泳结果显示，药物作用后，细胞核电泳形成明显的拖尾，细胞核光密度降低，并且差异有统计学意义（P＜0.01）。

The interaction potentials between two heavy ions are calculated by using the energy density formalism and the nuclear Fermi density distributions , the factor of the neutron skin and the surface diffusion of the neutron distribution increasing with the increases of the neutron excess is considered .

用能量密度公式及小液滴模型给出的费米密度分布，并引入中子皮及中子分布弥散度随中子过剩自由度增加而增加这一因素，计算了重离子反应相互作用势及熔合位垒。