volume effect

Following the part two the partial volume effect was studied in more detail including the production of PVE, the effect of PVE on the image quality and the correction of PVE.

第三部分研究正电子图像的部分容积效应及其校正。

Simulation Study and Experiment Verify of Partial Volume Effect for Positron Emission Tomography

正电子发射断层扫描图像部分容积效应的模拟研究及实验检验

Partial volume effect ( PVE) and their influence factors for positron emission tomography ( PET) were investigated with computer simulation and experiments.

用模拟实验研究了正电子发射断层扫描（PET）部分容积效应与相关影响因素间的关系。

Large helical pitch and wide reconstruction mode are subject to partial volume effect, resulting from the increase of scan slice thickness.

单纯增加螺距或使用360度线性内插（Wide）重建模式，都会引起CT图像实际层厚的增加，引起更大的容积效应影响。

The research results show that there is a good effect applying the cold recycling asphalt material on base course or sub-surface of pavement. The volume of new asphalt mixing material can be decreased largely. The cost of project can be saved effectively.

研究结果表明：将沥青路面现场冷再生混合料应用于基层或下面层效果良好，可显著减少新料的用量，达到节约资源降低施工成本的目的。

As for the effect of controlling volume stability of mortars, orderly , CLS > PC > PNS.

减水剂控制砂浆体积稳定性的效果为:木质素系>聚羧酸类>萘系.

Solvent effect and volume shrinkage ratio in melamine-formaldehyde gel aging process were discussed.

介绍了三聚氰胺 - 甲醛凝胶老化过程的溶剂效应及其对体积收缩的影响.

Conclusion In most of patients with postoperation hyponatremia, satisfactory treatment effect could be gotten by proper complementation salt and blood volume and proper antidiuresis therapy.

结论脑出血术后并发低钠血症及尿崩症，均匀适度及时地补盐、补充血容量、抗利尿治疗效果满意。

Also, partial volume effect can worsen the resolution of digitally reconstructed radiograph ( DRR) in 3D TPS.

同时部分容积效应也会导致三维治疗计划系统中数字重建影像（DRR）分辨率的降低。

Both the temperature difference and the relative motion of the compensation piece in relation to the magnetic needle are equivalent in effect to the volume variation of the alloy piece in sense of compensation. These are named the volume effect in the paper.

文中指出，这种温度差别和补偿片在磁针位置上的移动两者在补偿效果上均等效于合金片的体积变化，称之为体积效应。

The effect of preparation parameters on the disribution of Ni species and the CO hydrogenation performance of the derived Ni/ Al2O3 catalysts was studied by activity measurement, surface area and pore volume measurement, XRD, and temperature programmed reduction ( TPR) methods.

用比表面和孔体积测定、XRD和程序升温还原（TPR）方法研究了一系列不同制备条件对Ni在Al2O3表面上的分配形态及其对CO加氢反应催化性能的影响。

Temperature Effect on Autogenous Volume Change of Concrete

温度对混凝土自生体积变形的影响

Based on practical recovery of LDG, the factors that have effect on recovery volume of LDG are analyzed and the theoretical equation is built.

结合生产实际中转炉煤气回收的规律，确定了转炉煤气发生量与回收量的影响因素，建立了转炉煤气回收量的理论计算公式；

The type of the pump impeller and pump and centrifugal pump with a volume effect of particles suspended in mid-stream leaf out of date, do not hit any part of the pump, it is good non-destructive.

该型叶轮的泵兼具有容积泵和离心泵的作用，悬浮性颗粒在叶片中流过时，不撞击泵内任何部位，故无损性好。

The effect of fill volume on coagulation results also depends on the reagent used for testing, size of the evacuated collection tube, and citrate concentration.

抽满体积的出凝血结果也依赖于检测使用的试剂、真空采集管的大小，以及枸橼酸钠浓度。

Objective. To compare direct measures of postoperative hematoma volume against a new measure of hematoma effect on the thecal sac: the critical ratio.

目标：比较术后直接测量血肿体积与一个新的血肿对囊壁作用标度（标准比）的差别。

Objective To study the therapeutic and protective effect of low tidal volume ( LTV ) ventilationacute respiratory failure.

目的探讨小潮气量机械通气的临床治疗及肺保护效果.