中分

In the PFD, both the differentials and non-differential terms in the differential equation are discretized, and the coefficients of the power series are determined by means of eliminating the truncation error of the corresponding modified scheme, then the high accurate difference scheme is obtained.

摄动有限差分方法在微分方程的差分近似中，离散微商项的同时，也离散非微商项，把非微商项摄动展开成网格步长△x的幂级数，并通过提高差分格式相应修正微分方程误差阶的方法求出摄动幂级数系数，从而获得高精度差分格式。

The additional score guidance of instrument usage was put forward firstly in 2001 and quantitative index was constituted in grade rule of international eurythmics in 2003. The new idea of grade reflects the re-understanding of the development of instrument in eurythmics.

在艺术体操的发展史上，2001年国际艺术体操评分规则中首次提出了对器械运用加分的导向，接下来2003年版规则又对器械加分动作全面、系统、分门别类的制定出了加分的量化指标，这一新的评分理念，打破了以往只在形式上呼吁要加大器械运用的难度而无法体现加分量化的客观依据的评分局面。

TH-904 is used as chelant in papermaking coating, building coating, concrete retarder, water reducer, woven and dyeing. Its performance can reach to that of SN-5040. Adding TH-904 to slurry during grinding process of bolus alba, lime carbonate, pottery clay, titanium pigment, French chalk, barium sulfate, coal-water slurry, etc., the viscosity can be largely reduced and the dispersed slurry is stable.

TH-904水性分散剂广泛用做造纸涂料及建筑涂料的分散剂、混凝土缓凝剂、减水剂以及纺织印染等行业作螯合分散剂，性能达到SN-5040水平，在高岭土、碳酸钙、陶土、钛白粉、滑石粉、硫酸钡、水煤浆及水泥等浆料的研磨加工过程中加入TH-904分散剂能极大地降低被加工物料的粘度，便于物料的加工，且分散后浆料粘度稳定。

Results: these 30 old patients with bedsore got（16.97±3.24） grade averaged. there were 3 patients (10%) got 13 grade, 14 (46.7%) got 14~18 grade, 5 (16.7%) got 19~23 grade. most of them had the innutrition, hypoproteinemia, decrease of serum calcium, change of muscular tension and gatism in different degree. all of them had no self-care ability and had to lie down and take transfusion, 10 of them had to be bound their extremity. there was close correlation between the factors happened to the patients and the incidence of bedsore.

结果：30例老年压疮病人诺顿评分平均（16.97±3.24）分，其中，3人（10%）≤13分，有很高风险，14人(46.7%)14~18分，有较高风险，5人(16.7%)19~23分，有中等风险；30例老年病人不同程度存在中重度营养不良、低蛋白血症、血清钙降低、肌张力改变、大小便失禁等情况；30例病人均长期卧床，丧失生活自理能力，住院后接受输液治疗，其中10例因躁动需要约束四肢等，这些因素均与压疮的发生相关。

Results The rates of ECG abnormalities in group of OCSP were 95.45% for TACI、80.35% for PACI、62.50% for POCI and 48.54% for LACI. The rates of ECG abnormalities in group of Adams were 83.72% for large infarction, 60.42% for small infarction,53.2% for lacunar infarction and 20% for no infarction.

结果 在OCSP分型中，TACI、PACI、POCI和LACI的心电图异常率分别是：95.45%、80.35%、62.50%和48.54%；在Adams分型中大梗死组、小梗死组、腔梗组和阴性组的心电图异常率分别是：83.72%、60.42%、53.23%和20%。

The relationship between each of four subtypes and ECG abnormalities was evaluated.Results The rates of ECG abnormalities in group of OCSP were 95.45% for TACI、80.35% for PACI、62.50% for POCI and 48.54% for LACI. The rates of ECG abnormalities in group of Adams were 83.72% for large infarction, 60.42% for small infarction,53.2% for lacunar infarction and 20% for no infarction.

结果 在OCSP分型中，TACI、PACI、POCI和LACI的心电图异常率分别是：95.45%、80.35%、62.50%和48.54%；在Adams分型中大梗死组、小梗死组、腔梗组和阴性组的心电图异常率分别是：83.72%、60.42%、53.23%和20%。

Based on the analysis of the Doppler effect of the mobile channel, the performance of two MIMO-OFDM systems (STTC-OFDM and SFBC-OFDM) in the fast-moving environment is studied. Then, the algorithm for channel estimation based on the training sequence is extended into the fast-moving environment by introducing the space-frequency coding, the method of the equal-interval pectinate pilot-inserting, and the complete Maximum-Likelihood space-frequency decoding.

针对快速移动环境中存在的多普勒效应，研究了两种多输入多输出正交频分复用系统在快衰落信道中的误码性能，采用空频编码梳状等间隔导频插入方式，以及完全最大似然空频分组码解码算法，使用导频与接收信号进行信道参数估计，将一般多输入多输出正交频分复用系统中的基于训练序列的最小均方误差信道估计算法推广到了快衰落信道环境中。

In this paper, the petrology, mineralogy and geochemistry of basic-ultrabasic volcanic rock, granite and skarn related to the Sn-Cu skarn-type ore and the vein-type ore in Laochang ore field have been researched systematically, some conclusions are summarized as follows:In Gejiu tin-polymetallic district, the middle Triassic volcanic rocks belonging to calc-alkaline basalt-tholeiite serie, mainly consist of pyroxene, hornblende, feldspar, chlorite and phlogopite; All the granites are peraluminous granites related to the Yanshanian collision-orogeny. Laoka granite closely related to the tin-polymetallic deposits emplaced in the post- orogenic.The metal elements show obviously vertical zones with the variety of skarn types in dimensional extension; The occurrence of garnet skarn and diopside skarn alternately developed in the horizontal zones of the contact between granite and carbonatite are mainly related to two factors: one factor is the infiltration metasomatism of post-magmatic hydrothermal solution, the another is the metrical strata of marble and calcic-dolomite developed in country rocks.

本文重点以老厂矿田中的接触带锡铜矿床和脉状矿床为研究对象，采用化学分析、ICP-MS、X射线粉晶衍射分析、电子探针等测试手段，对本区与成矿相关的基性-超基性火山岩、花岗岩、夕卡岩、电气石-石榴石等进行了系统的地质地球化学研究，研究表明：个旧矿区中三叠纪个旧组地层中的火山岩为钙碱性玄武岩-拉斑玄武岩系列，岩石为辉石-角闪石-长石-绿泥石-金云母组合；本区的花岗岩为过铝质花岗岩，主要与燕山期碰撞造山作用有关，锡多金属成矿与形成时代最晚、分异较好的花岗岩关系密切；本区夕卡岩中的有用共生组份随着夕卡岩类型及其矿物组合的不同具有明显的分带性。

In order to describe the distribution condition of graphite particles in spheroidal graphite cast iron, a description method based on multi-fractal was proposed.

为了描述球墨铸铁中石墨颗粒的分散均匀性，提出了基于多重分形的描述方法，该方法采用Matlab分形工具箱提取石墨颗粒分布密度的分形特征来定量描述石墨分布的不均匀性，其多重分形谱的宽度以及最大最小概率子集维数之间的差别反映了石墨分布的不均匀性。

Leaves opposite or rarely alternate, subequal in size; stipules lanceolate, 7-10 mm; petiole 1.5-6(-10) cm, densely pubescent; leaf blade dark green or black when dry, oblate to 5-angled or oblate to orbicular-ovate, often ovate in upper stems, 8-12(-18)× 7-14(-22) cm, papery, secondary veins 2 pairs along midvein, abaxial surface densely pubescent along veins and veinlets, adaxial surface roughish, densely strigose, base truncate, subcordate, or broadly cuneate, margin coarsely 8-12-dentate, teeth gradually larger distally, often biserrate apically, apex 3-cusped or lobed, tip serrulate. Glomerules on axillary spikelike flowering branches, male branches often branched, 8-17 cm; female spikes distal, unbranched or branched, 5.5-24 cm.

叶对生或很少互生，大小近等；托叶披针形，7-10毫米；叶柄1.5-6(-10)厘米，密被短柔毛；叶片深绿色或黑色的干燥时，扁球形到具5个角或扁球形的到圆形卵形的，通常在上面茎内卵形的， 8-12(-18)* 7-14(-22)厘米，纸质，次脉2 对沿中脉，背面密被短柔毛的沿脉和细脉，正面微糙，密被糙伏毛，基部截形，近心形，或宽楔形，团伞花序在腋生的穗状的花枝，雄性分枝通常分枝，8-17厘米的；雌性穗状花序上部，不分枝或分枝，-24 厘米。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。