降低...的分

The results showed that during the research period,the fractal dimensions of paddy fields,dry land and wet areas increased obviously,whereas for forest land,shrubbery land and grass land,the fractal dimensions decreased.For all types of land,the values of landscape diversity index and landscape apartness index have increased but landscape dominance index value has rather decreased.Meanwhile it was found that the relation between fractal dimension and landscape fragmentation index showed significant positive correlation.

结果表明：水田、旱地、水域等土地类型的分形维数在研究时间段内有明显上升，有林地、灌木林地和草地等景观要素类型的分形维数降低；景观多样性和破碎度指数以及均匀度略有增加，而优势度指数下降；分形维数和破碎度指数呈极显著正相关。

Simulation results show that our algorithm enforces the adaptability of differential space-frequency modulation to the time delay expansion.Finally, we give our work to reduce the complexity of multiple symbol differential sphere decoding in differential space-time modulation. Through the modification of the enumeration strategy of the search tree in sphere decoding, we significantly reduce the complexity of detection at the expense of little loss on performance.

理论分析和仿真结果都验证了这种检测算法对长信道时延的适应能力论文最后还对差分空时调制中的多符号检测算法进行了研究，提出了一种降低差分空时调制系统中多符号差分球形译码算法复杂度的方法，通过改进球形译码中搜索树的排序策略，使得系统在牺牲较少性能的基础上大大降低了算法实现的复杂度。

ReduceMain fractionation tower,s press drop can enhance inlet pressure of compressor.At the condition of compress ratio is invariable,it can improve system pressure、increase NTS of stabilization tower、reduce stabilize gasoline C4 ratio、improve system absorbent ability.Generic design can hardly reach the best NTS of absorber,so adding absorber,NTS can obviously increase effect so absorb. Because adding absorber'NTS can reduce system dependence on other factors,and it can not lead to the increase of the energy,so it is the best economic method of improving absorb operation effect. For desorber,double feed stream is a economical means but it need adding the NTS.

降低主分馏塔的压降，可以提高压缩机的入口压力，在压缩比不变的情况下提高系统压力；增加稳定塔理论板数，可以降低稳定汽油中C4的含量，系统的吸收效果改善；一般的设计和吸收塔的最佳板数相距较大，所以改造吸收塔的理论板数，它对提高吸收效果往往最显著，又因为改善吸收塔的理论板数会降低系统对其它因素的依赖程度，而且改善它并不增加能耗，所以改造它对提高吸收效果又是最经济的手段之一；对于解吸塔来说，双股进料的工艺很有经济效益，但它需要增加理论板数来实现。

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。

PEG1000-1500 can be used as groundmass and lubricant in medicine, textile and cosmetic industry; dispersing agent in coating industry to improve the resin property of water dispersion and flexibility.

PEG1000-1500在医药、纺织、化妆品工业中用作基质和润滑剂、柔软剂；涂料工业中作分散剂，改进树脂的水分散性、柔韧性；油墨中可提高染料的溶解能力，降低其挥发性，在蜡纸和印台油墨中尤为适用；也可在圆珠笔油墨中作调节粘度用；橡胶工业中用作分散剂，以促进硫化作用，以及用作碳黑填充料的分散剂。

This dissertation involves the study of the growth dynamics of colloidal particles under unequilibrium and irreversibility condition. Firstly, it is of interest to investigate whether the ideal diffusion or reaction-limited aggregation universal behavior can be observed for the initially polydisperse practical system of basic yttrium carbonate as well. The fractal structure of basic yttrium carbonate aggregate cluster was observed using transmission eletron microscopy. The aggregation kinetics of basic yttrium carbonate colloids was studed using dynamic 1ight-scattering techniques. At 1.00mol/l NaCl solution the fast diffusion-limited aggregation behavior was observed with an increase in the aggregate size over time described by a power law. The aggregates are characterized by a fractal dimension D=1.82. The disordered and ramified cluster is consisted of primary colloidal particles and tenuous and more open. These are in good agreement with those observed for other colloidal system such as colloidal gold (1.86), silica (1.85) and polystyrene latex (1.82) in diffusion-limited aggregation from the static and dynamic light scattering by Lin. Therefore ideal diffusion-limited aggregation behavior can be observed in practical polydisperse system as well. Smoluchwski and fractal theories were used to obtain the aggregation rate constant for initially polydisperse system for the first time.

本论文研究胶粒的非平衡不可逆聚集动态学，分为两个部分，第一部分是通过实验研究一个新的初始多分散的碱式碳酸钇胶粒实际体系中，聚集标度性质的普适性，即使用透射电子显微技术观测聚集粒子簇的分形结构，使用动态激光光散射研究碱式碳酸钇胶粒的聚集动力学，胶粒带电而产生静电排斥作用使得碱式碳酸钇胶粒处于稳定状态，当加入电解质NaCl溶液时，碱式碳酸钇胶粒间的Debye-Hückel屏蔽距离缩短，从而降低静电排斥能垒，引起胶粒发生不可逆聚集，加入电解质NaCl的浓度为1.00mol/l时，碱式碳酸钇胶粒进行快速聚集，经历扩散控制聚集机理，形成结构疏松、更为开放的分形聚集粒子簇，其分形维数为1.82，碱式碳酸钇胶粒聚集增长动力学遵循幂函数增长规律，与Lin等使用静态激光光散射和动态激光光散射测量硅胶(1.85)、金胶(1.86)和聚苯乙烯胶乳(1.82)在扩散控制聚集状态形成聚集粒子簇的分形维数值以及粒子簇聚集增长的动力学规律相一致，表明胶粒聚集标度性质的普适性质在初始多分散的实际体系中也是存在的，首次由动态激光光散射的实验数据得到初始多分散胶粒分形粒子簇的聚集速率常数，并且其值与Smoluchowski聚集速率理论预期相符。

It is found that the fouling rate is lowered during subcooled fow boiling by carrying gas injection, and the influence of carrying gas injection on fouling of convective heat transfer is more obvious than that of subcooled flow boiling; morphology of CaCO〓 crystallization fouling exhibits self-similarity and the fractal dimensions of CaCO〓 crystallization fouling are determined from the gray scale distribution of the SEM images by box-dimension method. The value of the crystallization fouling surface fractal dimensions reveals the complexity of the surface, and can be used as an import parameter for the investigation of influence of carrying gas injection on scale formation.

实验发现：引入载气，过冷流动沸腾结垢速率降低，但引入载气对过冷流动沸腾结垢速率的影响要弱于对对流传热结垢速率的影响；CaCO〓结晶垢具有统计自相似性，即分形特征；用盒子维法测定了CaCO〓结晶垢的分维值，分维值的大小反映了换热面上生成的结晶垢表面复杂程度，可用于描述引入载气对污垢的形成作用。

After relations between growth speed of final ice lens and segregation temperature were analyzed, the decrease of water intake speed at high segregation temperature was pointed. For small heave induced by intermissive freezing mode of controlling frost-depth, the mechanism of using intermissive phase to increase segregation temperature of the final ice lens so as to restrain its growth was proposed.

进一步定量考察末透镜体的生长速度与分凝温度之间的关系后，指出较高的分凝温度将会导致吸水速率的降低，而控制冻深的间歇冻结模式其机理就是利用间歇阶段促使末透镜体的分凝温度升高，抑制末透镜体的生长，进而达到减小冻胀的目的。

The desulfurization experiments of CaO samples with various fractal dimensionswere carried out in the TGA to investigate the influences of fractality on the sulfationreaction, and the evolution of pore structures during the reaction. Under certainsulfation conditions, the calcium conversions of the CaO samples increase with theincrease in fractal dimension when fractal dimension is less than 2.68, and decreaseswhen it is more than 2.68. In the range of the experiment temperatures, the calciumconversion for a sample with a lower fractal dimension increases with the increase inthe temperature, and for a sample with a higher fractal dimension there exist anoptimum temperature at which the sample can reach the highest calcium conversion.

选用具有不同分形结构的CaO试样进行了硫化实验，研究孔结构的分形特性对硫化反应的影响以及硫化过程中分形孔结构的变化特性，实验结果表明，在一定的分形维数范围内，随着分形维数的增加，钙利用率增大，但分形维数超过一定值时(约为2.680)，钙利用率反而降低。

The results show that with the increase of operation severity, the content of the distillate heavier than 550℃ and the resin and asphaltene in the oil slurry are decreased obviously.

结果表明，随着操作苛刻度的提高，油浆中的馏分呈现出中间馏分增加，两端馏分降低的变化趋势，并且油浆中大于550℃馏分的含量明显减少，油浆中的胶质、沥青质含量减少。

gasify：气化

反之,气体分压值降低,则溶解于体内的气体必然随之释出.亨利定律与氧在血浆中的溶解量,以及与减压病的发生和预防等均有密切关系.液态氧的比重为1.14,1kg液态氧的体积为0.88L,气化(gasify)后成气态氧以700L计(在0℃时).通常,

Hyperventilation：过度通气

四、过度通气(hyperventilation):利用降低血中二氧化碳分压,使得脑部血管收缩(vasoconstriction)以达到降低颅内压的效果. 临床上的使用已经超过二十年的历史. 将血中二氧化碳分压降到25至30 mmHg,数秒钟内即有降颅内压效果,但时效短暂.

thicken：浓缩

污泥浓缩(Thicken)的目的是降低污泥含水率,减少污泥体积,以利于后续处理与利用. 干化(Dry)意味着在单位时间里将一定数量的热能传给物料所含的湿分,这些湿分受热后汽化,与物料分离,失去湿分的物料与汽化的湿分被分别收集起来,

weaken：削弱

削弱(Weaken)等级:6先修技能:伤害加深 解释:削弱可以让受诅咒的敌人对您或是您的手下所造成的伤害减少. 当这个技能被施展在一名敌人(或是一群敌人)身上时,可以让敌人的攻击力降低三分之一. 在您需要防御的情况下,

Interleaver：波长交错器

中文摘要: 波长交错滤波技术(Interleaver)是密集波分复用(DWDM)系统研究中的一个新课题,波长交错器配合现有的窄带滤波器件能方便为现有系统升级,大大降低了升级成本和对超窄带滤波器件的严....中文摘要: 波长交错器(Interleaver)在密集波分复用系统

Paco：动脉血二氧化碳分压

乱的临床综合征它是一种功能障碍状态而不是一种疾病可因肺部疾病引起也可能是各种疾病的并发症呼吸衰竭是由各种原因导致严重呼吸功能障碍引起动脉血氧分压(PaO)降低伴或不伴有动脉血二氧化碳分压(PaCO)增高而出现一系列病

partitional clustering：分割式分群法

在使用分割式分群法(partitional clustering)时,我们必须先指定群聚的数目,然后藉著反覆叠代运算,逐次降低一个误差目标函数的值,直到目标函数不再变化,就达到分群的最后结果.

Cigarettes：烟

C.降低胆固醇(Cholesterol)和戒烟(Cigarettes). 众所周知,胆固醇增高是引起冠心病的罪魁祸首,血清胆固醇增高应通过饮食控制和适当服用降脂药如他汀类药,把胆固醇降到4.6毫摩尔/升(180毫克/分升)以下,这样可大大降低心梗的再发率.

rolled copper foil：压延铜箔

因此降低工作电压亦可降低漏电流.按铜箔的不同制法,可分为压延铜箔和电解铜箔两大类.分别是压延铜箔(Rolled Copper Foil) 和电解铜箔(Electrode Posited copper)(1)压延铜箔(Rolled Copper Foil) 是将铜板经过多次重复辊轧而制成的原箔(也叫毛箔),

Decaffeinated Coffee：无咖啡因咖啡

世界知名医学期刊<<内科医学档案>>(Archives of Internal Medicine)报导,每天喝三到四杯茶或咖啡,可将罹患第二型糖尿病的风险降低五分之一以上,尤其喝无咖啡因咖啡(decaffeinated coffee)效果更显著,可降低得病风险三分之一.