共分散

基本解释 (translations)

covariance

与共分散相关的网络例句 [注：此内容来源于网络，仅供参考]

Flame retardant POM composites were prepared using TPU as carrier to introduce melamine cyanurate into POM matrix, and even dispersion of MCA in polymer matrix was obtained. The prepared flame retardant POM possesses good mechanical properties and flame-retardancy.

采用三聚氰胺氰尿酸盐／聚氨酯复合阻燃剂阻燃聚甲醛，阻燃剂粒子均匀分散于聚氨酯分散相中，解决了阻燃剂与聚甲醛直接共混相容性差、材料性能劣化的难题，获得了阻燃性能和力学性能较好的阻燃聚甲醛材料。

The blend has following properties with 10 parts compatibilizer. The tensile intensity and elongation at break reach 35.66MPa and 23.58%, respectively, improving by 26.6% and 65.7% respectively compared with 0 part compatibilizer; The characteristic absorption peak of carbonyl at 1725～1800cm-1 disappear and the characteristic absorption peak of hydroxide at 3438～3440cm-1 increase induce the formation of hydrogen bond; The decalescence peak of blend increase by 2℃compared with the blend containing 0 part compatibilizer near 100℃; Lignin can be dispersed homogeneously to avoid reuniting of lignin particle.

2当共混材料中增容剂含量为10份时，共混材料表现出如下特性：拉伸强度和断裂伸长率分别达到35.66MPa及23.58%，较未加增容剂分别提高了26.6%和65.7%；从1725～1800cm-1范围内羰基特征吸收峰接近消失以及3438～3440cm-1范围内的羟基波数的增加暗示了共混材料中氢键缔合的发生；共混物在100℃附近的吸热峰较未加增容剂时降低了近2℃，相容性得到了提高；木质素在基体中进一步分散，结晶度增加，从而阻止木质素的团聚，增加了两相的相容性。

The high barrier effects are obtained by controlled blending technique conditions and morphology of dispersed phase.

将少量对烃类溶剂具有高效阻隔作用的阻隔性树脂――改性尼龙与高密度聚乙烯共混，通过对共混工艺条件和分散相MPA形态的控制，可获得具有高阻隔性能的HDPE／MPA共混材料。

The results of DSC and TG studies showed that the blends maintained the heat stability as that of the matrix. The dispersion of the reinforcing phase in the matrix can be well maintain under the circle heating and cooling heat treatment, which is important for its applications.

DSC和TG的研究结果表明，所获得的共混体系基本上保持了基体本身的热稳定性，同时共混体系的热稳定性还受到嵌段共聚物含量的影响；在反复的升降温过程中，嵌段共聚物在基体中的分散状态得到很好的保持，表现出相当的相结构稳定性，这一性质对于材料在工业上的应用意义重大。

The effects of injection temperature on the dispersion phase and mechanical properties of polyoxymethylene/thermoplastic polyurethane elaster blends were investigated.

研究了注塑温度对聚甲醛/热塑性聚氨酯弹性体共混物形态结构和力学性能的影响。实验结果表明，注塑温度影响POM基体相与TPU分散相的粘度比，195℃时两者粘度相当，在剪切流动过程中，TPU可在POM基体中形成条状分散相，可吸收较多的冲击能并阻止银纹的生长以及裂纹的产生，从而较大幅度提高共混物的缺口冲击强度

In this thesis, three major achievements were made in theoretical study: conditions and rules for preparing nano-powders by chemical precipitation are analyzed from the point of view of thermodynamics and kinetics, the principle, standards and experimental method for the aqueous dispersion of nano-scaled metal oxide powders were proposed and verified, mathematical model of nano-filming addition of dopants by chemical coprecipitation was established. In experimental research, nm-ZnO, nm-Bi〓O〓, nm-Co〓O〓 and nm-MnO powder with spherical shape, narrow particle size distribution and small particle size were prepared successfully, highly stable and dispersive aqueous suspensoid of nm-ZnO, nm-TiO〓, nm-Co〓O〓 and nm-MnO powder were prepared successfully and surface modification on these nano-powders was also achieved, 0-3 nanocomposite ZnO varistors with nm-ZnO, nm-TiO〓and nm-MnO respectively were prepared successfully by conventional mechanical attrition, and exhibited much better electrical properties than those of conventional varistors.

综上所述，本文在理论研究方面取得了三项成果：（1）从热力学和动力学角度推导并分析了液相化学沉淀法制备纳米粉体的反应条件和规律，（2）提出了纳米氧化物的水分散体系的设计原理、规范和通用实验步骤，（3）提出了共沉淀的数学模型和计算方法；在实验方面所取得的成果有：（1）成功制备了粒度小、分布窄、形貌对称的纳米氧化锌、纳米氧化铋、纳米氧化钴和纳米氧化亚锰，（2）成功地制备了纳米氧化锌、纳米二氧化钛、纳米氧化钴和纳米氧化锰的高稳定分散悬浮液并实现了干粉体的表面改性，（3）成功地进行了纳米氧化锌、纳米二氧化钛和纳米氧化锰对压敏电阻的0—3复合掺杂实验，试样性能远优于常规压敏电阻，为实现压敏电阻的高能高压化提供了新的方法和思路。

The silicone rubber based on PDM-MVS/PMMA blend had microphase-separated structure consisting of PMMA domains uniformly dispersed within a continuous PDM-MVS matrix.

结果表明，随着PDM-MVS中乙烯基质量分数的增加，共混物的黏度逐渐增大；由PDM-MVS/PMMA共混物制备硅橡胶的物理机械性能明显优于α，ω-羟基聚二甲基硅氧烷／PMMA共混物制备的硅橡胶；制得的硅橡胶具有微观相分离结构，PMMA分散相均匀地分布于PDM-MVS连续相中，两相的相容性良好。

A study of phase morphology of PBT/POE-g-MAH/nano-CaCO3 composite by means of scanning electron microscopy showed that the domains size of nano-CaCO3 capsulated by POE-g-MAH elastomer in composite when PBT was mixed directly with POE-g-MAH and nano-CaCO3 together or with nano-CaCO3 capsulated by POE-g-MAH elastomer is large.

采用熔体流动速率较低的EPS30R与纯POE-g-MAH共混制备的增韧改性剂，在PBT基体中的分散相变得粗大且不均匀，共混物的脆韧转变推迟。SEM显示，纯POE-g-MAH增韧剂使PBT共混物发生脆韧转变时，弹性体分散相颗粒产生塑性变形，诱发基体屈服而吸收能量。

Specifically, itcontains 8 chapters.In chapter 1, the formation, structures, properties and the futureprospect of liposome were thoroughly reviewed;In chapter 2, the stibility and permeability of phopholipid -eleostericacid liposome were studied together with the effect of polymerizationof eleostearic acid. This membrane system was very sensitive to 〓,the effect of 〓 was clarified to increase the aggregation/fusion ofliposomes and made the permeability of mixed liposomes much higher;In chapter 3, two polymerizable conjugated diyne bolaamphiphiles were synthesized. They could form very stable mixed liposome, andthe diyne could be polymerized by UV light in bilayer liposomes, as aresult, the stability of mixed liposome against solvent or surfactantafter polymerization were enhanced. In chapter 4, two kinds of amphiphilic amino acids were synthesized andstable liposomes were formed therefrom After the condensationpolymerization of amino acid in bilayer liposomes, stable polypeptide liposomes were obtained, which had lower phase transition temperatureand higher permeability.In chapter 5, four kinds of glycolipids were synthesized and theiraggregation behavior in water was comparied. When incorporated intophospholipid bilayer membranes, they could increase the phase transitiontemperatures and inhibit the aggregation and fusion of mixedliposomesat lower temperature.In chapter 6 and 7, three kinds of steroidal bolaamphiphiles withdifferent chain lengths were synthesized. Incorporation of steroidalmoiety to the center of lipid bilayer membrane obviously increased themobility of lipid membrane and shifted Tc to lower temperature side incomparasion with cholesterol. The bolaamphiphile which was shorter thanthe hosted lipid bilayer membrane thickness influenced the lipid packingmore obviously.

全文共分8章：第一章对脂质体的形成、结构、性质及展望进行了较为详细的文献综述；第二章研究了磷脂-桐酸脂质体的稳定性，通透能力及桐酸的聚合对这些性质的影响；磷脂-桐酸混合脂质体为一类对〓灵敏的脂质体，〓的作用首先是使脂质体集聚然后使脂质体融合，并加速内包荧光物的释放；第三章通过合成两种可聚合共轭双炔双极性双亲分子DDCA，DDOL，研究了共双炔分子在双分子层脂质体膜上的聚合及对脂质体性质的影响，聚合可以提高脂质体相对于溶剂及表面活性剂的稳定性；第四章合成了两类氨基酸为极性基团的双亲分子，它们均可以在超声下形成稳定的脂质体结构；氨基酸基团可以在脂质体上进行缩聚反应，若聚合后脂质体表面仍有足够的亲水能力，则可得到稳定的多肽型脂质体；聚合后脂质体的相变温度降低，通透能力增加；第五章合成了四种亲水基团为单糖基的双亲分子GL-l，GL-2，GL-3， GL-4，研究了它们在水中的分散情况、集合体形态与分子结构的关系；在DMPC双分子层膜中加入糖脂分子可以使脂质体的相变温度提高，阻止脂质体在低温放置时的集聚与融合；第六章-第七章合成了三种不同碳链长度的双极性含胆甾环双亲分子 CL-1，CL-2，CL-3；它们可以象胆固醇一样与磷脂混合形成稳定脂质体，胆甾环基团位于脂质体双分子层膜的中间；与胆固醇的作用相反，它们可以增加磷脂双分子层膜的流动性，降低混合脂质体的相变温度；三种分子的作用与其碳链长度和磷脂双分子层膜的厚度有关，比膜厚度短的分子影响最大。

And is improved; Water cooking method go on adherence test indicate to asphalt mixture, the viscosity rises to 4 or 5 from 3 or 4; The equivalent of changing the pitch of modified asphalt some, the needle enters one degree of findings in high- temperature performance , such as index ,etc., the high-temperature performance of changing the pitch of silicon is improved to some extent; Indicate that the mobility of the modified pitch is diminished in glueing the research of playing the index ; Oppose water damage research of ability indicate , resist water damage ability raise to some extent.

按标准对沥青混合料进行配级后，用马歇尔实验确定了12%由擦洗法提纯的露水河硅藻土改性沥青混合料的最佳沥青用量为4.5%，用硅藻土改性沥青改性效果较好，可用做公路沥青路面的改性材料。硅藻土改性剂与沥青在强制搅拌过程中，没有发生明显的化学变化，主要是物相之间的分散、均混、吸附和交联，所以主要是物理意义上的共容，因此是否共容，混匀至关重要，只有改性剂微粒能均匀稳定的分散在沥青中不发生分层、凝聚和离析，才能达到理想的改性效果。

与共分散相关的网络解释 [注：此内容来源于网络，仅供参考]

autocovariance：自协方差 自己共分散

■ autocorrelation 自相关 自己相関 | ■ autocovariance 自协方差 自己共分散 | ■ Automated cartography 自动化制图 自動製図器

coalescence：凝聚

我们使用动态粘弹性流变学尝试测试共混体系的相图,分析了在本体系中使用粘弹性流变学测试本体系相图的各种有利和不利因素. 1.1.2 分散相的凝聚(Coalescence)过程8-102.2.5 扫描电子显微镜(SEM)观察302.2.6 凝固过程中小角激光光散射(BSALS)在线分析30

temperature covariance：温度共分散

copy cat 盲目的模仿者 | temperature covariance 温度共分散 | ethylmercuric chloride 氯化乙汞, 乙基汞化氯 西力生

signer：签章者

共包含了下列两种特性:的特性,使得签章者(Signer)对於即将要签的讯息,完全没有任何控制的权力,的签章者(Signer)能在分散式环境之下,各自选择私密金匙,也就是说签署者随著电子化时代的来临,

Skinning：结皮

(9)结皮(Skinning)涂料在容器中,由于氧化聚合作用,共液面上形成皮膜的现象. (10)沉淀;沉底:沉降(Setting)涂料在贮存过程中户,其固体组分下沉至容器底部的现象. (11)结块(Caking)色漆中颜料、体质颜料沉淀成用搅拌不易再分散的致密块状物.

covariance for stratified sampling：分层抽样协方差

covariance between inheritance and environment 遗传环境协方差 | covariance for stratified sampling 分层抽样协方差 | covariance function 积差函数,协方差函数=>共分散関数

corallium：珊瑚

八放珊瑚的笙珊瑚(Tubipora),骨骼呈筒状,由小骨片互相连成;海鸡冠(Alcyonium)骨骼为分散的小骨片;红珊瑚(Corallium)的中轴骨骼,为小骨片在共质轴中央愈合而成.

corallium：红珊瑚

八放珊瑚的笙珊瑚(Tubipora),骨骼呈筒状,由小骨片互相连成;海鸡冠(Alcyonium)骨骼为分散的小骨片;红珊瑚(Corallium)的中轴骨骼,为小骨片在共质轴中央愈合而成.

Tubipora：笙珊瑚

八放珊瑚的笙珊瑚(Tubipora),骨骼呈筒状,由小骨片互相连成;海鸡冠(Alcyonium)骨骼为分散的小骨片;红珊瑚(Corallium)的中轴骨骼,为小骨片在共质轴中央愈合而成.