The edge effect of winter wheat in bed planting system was studied under different density treatments.
对边行和内行设置了不同密度水平，研究了垄作模式下小麦的边际效应。
A sewage treatment device with expanded graphite as a self-made adsorption colume was used to study the effect of water flow rate, packing density of expanded graphite, adsorption flow process on sewage treatment and their affecting law with the standard curves prepared by spectrophotometer and through determining oil content in sewage before and after the treatment.
以膨胀石墨为吸附剂自制吸附柱作为污水处理装置，使用分光光度计制作标准曲线并对处理前后污水中含油量进行测定，研究了水流速度、膨胀石墨的填充密度、吸附流程对污水处理效果的影响规律。
At the same time, the effect of injections such as Traditional Chinese Medicine injection of danshen and huangqi on the HPMC in vitro from patients with high coagulaˉtive state was investigated. Methods HPMCs from these patients and normal persons were sored by density gradient Fieoll-Hypaque and cultured48hours in vitro. PCA and PA from these patients and mormal persoms were examined by assay of chromophorous substrate.
分离高凝状态患者及正常人外周血单核细胞，短期培养后用发色底物法检测其促凝血活性和纤溶活性，检测加丹参注射液及黄芪注射液对体外培养HPMC表达PCA和PA的作用。
The reason is that the application of the high frequency bias of 13.56 MHz not only strengthens ion bombardment on the material surface, but also induces the variations of the bulk plasmas including the increase of O atom density, while the main effect of the bias of 400 kHz is only to strengthen ion bombardment.
这可以归因为高的射频偏压的应用不仅可增强离子轰击效应，而且与体等离子体相互作用，使高活性的氧原子增多；而低频偏压的作用主要是增强离子轰击效应。
In basic properties of silver grass, the basic biology construction, fiber morphology, buffering capacity, surface wet ability and longitudinal tensile strength was mainly studied; in manufacturing process of SPB, the effect of board density and UF addition on physical and mechanical properties of SPB was mainly discussed, and By means of test of orthogonal experimental design and searching test, the relationship between moisture content, hot-pressing temperature, water-proofing agent addition and the TS of SPB was studied in detail. Through the study of the test production process of SPB, the best technological conditions were determined.
在荻草基本性质方面，主要研究了荻草的基本生物构造、纤维形态、化学成分、酸碱缓冲容量以及荻草的表面润湿性和纵向抗拉强度；在荻草刨花板制造工艺方面，主要讨论了不同密度、施胶量与板材物理力学性能之间的关系，并通过正交试验的方法深入研究了热压温度、板坯含水率以及防水剂施胶量对荻草刨花板吸水厚度膨胀率的影响，通过研究确定了较佳的试验生产荻草刨花板的工艺条件。
The chemistry behavior research of wollastonite indicated that the silicon-potassium fertilizer has a chemical active in organic acid. The factors affecting manurial effect of silicon-potassium fertilizer are not only soil pH and desilicification, but also content and type of organ in the soil. Wollastonite chemistry behavior indicates that silicic acid can be dissolved out from silicon-potassium fertilizer in chlorhydric acid solution if pH of solution is not smaller than 2. The drop of apparent density, increase of DBP sorptive rate and specific surface for leavings indicate that hydrated silicon oxide is polyporous, and those mineralogic feature presignify that silicon-potassium fertilizer has a role of conservation of both Moisture and Fertility and improving soil structure. After active ingredient releasing, silicon-potassium fertilizer leaves half the substance (non-active ingredient)in soil.
熟料单矿物在酸溶液中的化学行为研究表明，硅钾肥矿物在有机弱酸中的化学活性较好，影响硅钾肥肥效发挥的因素是土壤pH值和土壤的去硅化程度，还有土壤有机质的含量与种类；硅灰石在盐酸溶液中化学行为表明，在反应体系pH不小于2的情况下，硅钾肥矿物大量溶出硅酸根组分；溶解残余物表观密度降低、DBP吸着率和比表面积增加表明水合二氧化硅是以多孔形式存在，为硅钾肥具有保水保肥、改良土壤结构的提供了矿物学依据。
The aminolysis and the effect of water on the aminolysis processes of n -methyl β-sultam have been studied using density functional theory method at the B3LYP/6-31G* level.
结果表明，N-甲基b-磺内酰胺的氨解反应有两条反应通道：一条是S-C键断裂生成产物P1，另一条是S-N键断裂生成产物P2。
In order to evaluate the therapeutic effect and its mechanism of FNI, before and after modeling and after treating, the content of serum GOT and TG, the bone density of hip region, and the pathohistology of femoral head were examined.
为了评定I号药的疗效和机理，在造模前、造模后和治疗后，分别进行3次血清GOT、TG和髋区的骨密度测定和病理组织学检查。
The density of a bone and the quality of saw blade had significant effect on the accuracy of bone resections.
骨密度和锯的质量对截骨的精准性有显著意义的影响。
Measuring precision of density sensor based on Magnetostriction Effect is verified through theoretical analysis and experiments.
通过理论分析和具体实验，验证了磁致伸缩密度传感器的测量精度。
During the derivation, it is assumed: the liquid phase is incompressible Newton fluid; there is no mass transfer between phases; it is homothermal and steady state flow; the flow rate of gas phase and that of the liquid phase are the same without the consideration of slippage effect; the density of gas phase and that of the liquid phase in the wellbore are constants; the mixed loss caused by inflow from wellbore is ignored.
在推导的过程中进行了如下假设：液相为不可压缩的牛顿流体；相间不存在传质；等温、稳态流动；不考虑滑脱效应，气相和液相的流速相同；井筒中气相、液相的密度为常数；忽略井壁入流引起的混合损失。
And the effect of the strip mesh density on the simulation result is also studied in this paper.
另外对轧制仿真过程中网格密度对计算精度的影响也进行了计算和比较。
The effect of current density, duty ratio and frequency on structure and properties ofaluminum oxide coating was investigated.
研究了电流密度、脉冲占空比及频率对微弧氧化膜性能的影响。
Making use of appending nitrogen to mixture, this article determines the explosion limit and critical value of oxygen density of coal gas and LPG in different experimental condition, and researches the connection between explosion limit and critical value of oxygen density, and the effect of inactive gas、initial temperature、initial pressure and variety and composition of gases to critical value of oxygen density.
3通过向混合物中添加惰性介质氮气的方法，在不同实验条件下，测定了煤气、液化石油气两种多元可燃性混合气体的爆炸极限与临界氧浓度，探讨研究了爆炸极限与临界氧浓度的关系，及惰性气体、初始温度和压力及气体种类、组成对临界氧浓度的影响。
On the basis of the interaction mechanism of photon and substance, three factors which affect photon absorption efficiency are considered, including the electron density between absorption atoms, the number of inner orbital energy level, and the distribution of valence electrons in the absorption materials. According to the effect of irradiation to polymer microstructure, it is proposed that aromatic compounds or aromatic radicals, for example, benzene, not only have the stability of irradiation but also the ability of dispersing the energy of incident photon.
从光子与物质相互作用的机理出发，提出了影响光子吸收效率的因素：即吸收材料内吸收原子核间电子密度、内轨道能级大小和能级数量、价层电子的分布是制约材料吸收效率的三个主要因素；依据辐照对高分子材料微观结构的影响，提出了苯环等芳香族化合物或基团不仅其自身辐照时较稳定，且对入射光子能量具有弥散作用。
The results show that the technical parameters and the concentration of sodium molybdate have obvious effect on the composition of the alloy. The crystal grain size is from 6.2 to 12.7 nm and changes with current density, temperature and the pH value of the electrolyte. The crystalline growth of the alloy accords with the model of three-dimensional growth. The surface morphology is mainly determined by the rate competitions between the growing direction of vertical surface and the expanding direction along the surface towards circumambient. The results of the X-ray data show the presence of the multiphase containing solid solution and intermetallic compound in the deposits. The deposit phases alter from the FeNi and FeMo solid solution to the FeNi and MoNi4structure at 3 A/dm2. The deposits internal stress increases linearly with the decrease of the grain size. The lattice parameter of the deposits are slightly distorted
结果表明：工艺条件和钼酸钠浓度对合金组成的影响较大；所得合金晶粒尺寸为6.2~12.7 nm，并随电流密度、温度和电镀液的pH值的改变而变化；合金的晶体生长符合晶核三维生长模型，镀层表面形貌由平行和垂直于基体的生长速度的相对大小决定；镀层物相为固溶体和金属间化合物的多相结构，当电流密度为3 A/dm2时，镀层物相由FeNi和FeMo固溶相转化为FeNi和
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。
The main content and result of this thesis include:(1) For the first time the author analysis the fractor that effect the test parameters of rock and its mechanism based on the rock geophysics, build the statistical rules of varity rock test parameter and summarize the relationships among rock test parameters and the three common used parameters in the clastic reservoir description, that are density, porosity and impedence, and draw a conclusion that the lame's constant, the poisson's ratio and the ratio between P and S wave are the optimal parameter used to distinguish gas/water and lithologic identification.
本文的主要研究内容和取得的成果有：①首次在川西坳陷中段从物探描述的角度独立进行了岩石物理研究工作，阐述了影响岩石物理测试参数的因素及其影响机理，建立了各种岩石物理测试参数的统计规律，总结了密度、孔隙度、波阻抗三种在碎屑岩气藏描述中常用的参数与岩石物理测试参数的关系，得出了拉梅常数、泊松比、纵横波速度比是区分气水和岩性的最佳参数的结论。
Objective To investigate the effect of breast feeding on bone density and calcium metabolism.
目的 探讨哺乳对骨量及钙代谢的影响。
If the policy is too frequent introduction of intensive high-density, will have a negative effect, may reduce the government's credibility...
如果政策过于频繁、密集高密度的出台，会有一定的负面作用，可能会降低政府的公信力。。。。