查询词典 particles

Objective To observe the distribution of particles in osteolytic tissue and obtain the wear particles for the experimental study from the in vivo osteolytic tissue.

目的 观察、分析假体周围骨溶解组织中磨损颗粒的分布情况，为体外及体内磨损试验提供颗粒。

The passive tracking dynamics is modeled by the turn rate, and the basic steps of the nonlinear particle filter are discussed. According to constraint conditions including the terrain data and the maneuvering capability of the target, outrange particles are discarded during prediction and update steps, and the distribution and the weight of particles are adjusted. The performance and the RMSE are analyzed by comparison simulations with the unconstraint particle filter.

使用转弯率概念建立了被动跟踪模型，阐述了非线性粒子滤波的基本过程；通过设定地域和机动性能约束条件，抛弃约束外粒子，并对粒子分布和权重进行调整，利用CPF进行了目标跟踪仿真实验，与无约束的粒子滤波跟踪进行了对比，分析了轨迹跟踪性能，比较了跟踪误差。

This indicates that PEGA prevents the growth of the CaCO_3 particles, while PEGA-PMAA promotes the growth of the CaCO_3 particles.

这说明PEGA在CaCO_3粒子生长过程中起了阻碍作用，而双亲水的PEGA-PMAA则促进了CaCO_3粒子的生长。

Also, the effects of the amount of tantalum pentachloride and reaction time on the softening point of the pitch were investigated. Results showed that the tantalum particles were dispersed homogeneously in the pitch precursor with sizes in the range of 20-50nm. The tantalum particles mainly existed in the form of δ-Ta2O5 when the reaction temperature was 420℃. By further heat treatment,δ-Ta2O5 was transformed into β-Ta2O5 at 900℃.Β-Ta2O5 and TaC co-existed at 1200℃. At 2800℃, all the tantalum was transformed into TaC.

结果表明：沥青中钽化合物的粒度为20nm～50nm，主要以五氧化二钽的形式均匀分散于沥青中；惰性气氛下，较低温度(420℃)热处理时，钽化合物以δ-Ta2O5的形式存在，温度升高到900℃时，δ-Ta2O5转化为β-Ta2O5，在温度达到1200℃时，β-Ta2O5和碳化钽共同存在于炭基体中，在2800℃温度下，钽完全转化为碳化钽。

Macrophages phagocytize foreign materials such as dust and carbon particles in the lung, as well as vital dye particles.

巨噬细胞吞噬异物，如肺内的尘埃及碳粒，同样还有活体染料的微粒。

A new type of polymer particles with longan-like structure was prepared using the superbranched polyglycerol as parents materials, the structure of the particles was characterized in details.

用超支化的聚丙三醇为原料，合成了一种新型的具有龙眼结构的聚合物纳米例子。

The high content of Iohexol, a contrast media, in nanogel based on PNIPAAm dispersion had a profound effect on the volume phase transition of nanogel particles and thermosensitive phase behavior of nanogel dispersion, which mainly due to the presence of Iohexol with polyhydroxy group changed the micro-environment of nanogel particles.

这主要是因为多羟基的碘海醇的存在改变了纳米凝胶粒周围的微环境，使纳米凝胶粒在较低温度时处于收缩状态，并使纳米凝胶的VPTT比不含碘海醇的水分散体的升高10℃。

The results showed that 7-day-precultured embryogenic calli had the best responses for bombardment among 2-7 day' preculture duration. Enhanced transformation efficiency was found in the explants treated with high osmotic medium 4h prior to till 24 h after bombardment. Particles of gold and tungsten were both found suitable for rice transformation and there was no adverse effect when tungsten particles were reduced to 1/3 standard amount for DNA precipitation on transient GUS gene expression. However, it was found that gold particle had higher GUS expression at 120 h post-bombardment. A preliminary microprojectile transformation system with an average of 15-20 blue spots/explant GUS expression was routinely obtained for 'Tainung 67' by using the particle gun with 1,100 psi rupture disk, 6 or 9 cm microcarrier flight distance and 4 mm of macrocarrier flight distance setting.

初步结果显示，以预培养2~7日之胚性癒合组织逐日测试转殖率，以预培养7日之培植体表现最佳；培植体於转殖前4小时至转殖后24小时以高渗透压培养基处理，有助於转殖效率之提高；比较金、钨粒子对转殖率在转殖后48h並无不同，但转殖后120 h取样，则金粒子组有较高之蓝点数；钨粒子用量可减少至1/3標准用量对转殖率並无影响；利用基因鎗在使用1， 100 psi裂碟片、大载片至挡片之距离为4 mm、微载髁至射击目標之飞行距离6或9 cm之设定，GUS基因表现之平均蓝点数均可达15~20个／培植体。

The preparation of three different shapes a-Fe2O3 nano-particles by means of force hydrolyzation was discussed in this paper. By controlling the experimental conditions (Fe3+ concentration, acidity, reaction time, reaction temperature etc.), the particles with different shapes (ellipsoidal, pseudocubic, sphere) were obtained.

本论文采用强迫水解法制备了三种不同形貌的α-Fe_2O_3水溶胶，通过对反应条件Fe~(3+浓度、酸度、反应温度、反应时间等的控制获得了不同形貌(椭球形、球形、准立方体形)和粒径的α-Fe_2O_3，并利用浸渍—提拉法制备了α-Fe_2O_3纳米粒子薄膜。

The results showed that spherical BaCO3 particles with low reaggregation and uniform size of about 100nm could be prepared by using solid-state reaction of Ba(NO3)2 and Na2CO3 at room temperature; while stick shape particles, whose size is not uniform, were obtained for the BaCl2 2H2O and Na2CO3 system. For the Ba(NO3)2 and NH4HCO3 system, the products are spherical whose average size is about 200nm.

利用Ba(NO_3)_2与Na_2CO_3固相反应体系，可以制备出平均粒径约为100nm，形貌近似为球形的纳米BaCO_3；由BaCl_2·2H_2O与Na_2CO_3体系所得产物主要为棒状BaCO_3，且大小不一；由Ba(NO_3)_2与NH_4HCO_3体系可以制备出平均粒径约为200nm、形貌近似为球形的BaCO_3粒子。

Now she was hungry and angry.She began to smoulder.

现在她又饿又气，她开始流露难以抑制的怒火。

You have placed our iniquities before You, Our secret sins in the light of Your presence.

诗90：8 你将我们的罪孽摆在你面前、将我们的隐恶摆在你面光之中。