沥青

In particular, traffic accident, asphalt pavement damage and poor antiskid performance appears to be prominent in the areas of high temperature and rainfall. Thus,It is of great realistic significance to ensure traffic safety and reduce damage in steep road by evaluate accident rates effectively, to design an inerrable structure of asphalt pavement to , to enhance the antiskid performance and the durability of that in asphalt pavement.

在南方高温多雨气候和景区园道陡坡急弯组合情况下，如何保障景区园道交通安全、合理设计防推移破坏的陡坡路段沥青路面结构和材料、提高沥青路面抗滑和抗滑耐久性，对于保障南方景区园道沥青路面的交通安全和道路质量均具有很现实的意义。

This paper is aimed specifically at moisture damage issue of asphalt pavement, and the( axis-symmetric) finite element method is adopted to analyze the variations of interbedded pore water pressure of pavement under different load condition.

针对沥青路面水损害问题，运用轴对称有限元方法分析了不同等级轴载作用下沥青路面层间孔隙水压力的变化规律。

The interpolymer products are useful, for example, in applications such as hot melt adhesives, and also for impact, bitumen and asphalt modification, adhesives, dispersions or latexes and fabricated articles such as, but not limited to, foams, films, sheet, moldings, thermoforms, profiles and fibers.

共聚体产物用于，例如应用如热熔粘合剂，也用于冲击，石油沥青和沥青改性，粘合剂，分散体或胶乳和制造制品如，但不限于泡沫，膜，片，模塑件，热成形物，型材和纤维。

The characteristic of the visco-elastic models and the damage models have been analyzed by the SBS modified asphalt mixture monaxial tension tests ,and coupling becomes visco-elastic and damage models in succession.

通过SBS改性沥青混合料的单轴拉伸试验，分析了粘弹性模型与损伤模型的特性，并耦合成粘弹性连续损伤模型；从能量的角度考虑了SBS改性沥青混合料的疲劳损伤特性和损伤效应，并建立了一种与拉伸应变水平相关的疲劳损伤模型。

The experimental results indicate that the efficiency of degradation decreases in the order of the species of n-C〓 asphaltenes, crude oils and oilsands; and decreases in the order of the oxidation reagents by NaIO〓/NaH〓PO4 and 30%H〓O〓/CH〓COOH.

红外吸收因子Y能够反映出沥青质演化程度方面的信息，可以应用于沥青质成熟度演化状况方面的研究。

Our ShengLei wear-resisting Alloy Ltd,Co has a long history of casting and imitating famous brand quick-wear parts,and co-duelop with Shanghai on the melt in the cement,pitch sting machie ,leaf,pitch spiral blade of pawer,press plateform,excavator figh tooth and so on .

盛磊耐磨合金有限公司有着铸造加工和铸仿著名品牌易损件的历史，并与上海有关院校金相研究中心，共同开发水泥与沥青搅机中的衬板、拌叶，及沥青摊铺机的螺旋叶片，熨平板、挖掘机斗齿，支撑架等新品种。

Tantalum-containing pitch as a carbon precursor was synthesized by an in situ liquid phase reaction between coal tar pitch and tantalum pentachloride.

以煤沥青为原料，氯化钽为钽源，通过化学反应制备了含钽沥青前驱体。

Also, the effects of the amount of tantalum pentachloride and reaction time on the softening point of the pitch were investigated. Results showed that the tantalum particles were dispersed homogeneously in the pitch precursor with sizes in the range of 20-50nm. The tantalum particles mainly existed in the form of δ-Ta2O5 when the reaction temperature was 420℃. By further heat treatment,δ-Ta2O5 was transformed into β-Ta2O5 at 900℃.Β-Ta2O5 and TaC co-existed at 1200℃. At 2800℃, all the tantalum was transformed into TaC.

结果表明：沥青中钽化合物的粒度为20nm～50nm，主要以五氧化二钽的形式均匀分散于沥青中；惰性气氛下，较低温度(420℃)热处理时，钽化合物以δ-Ta2O5的形式存在，温度升高到900℃时，δ-Ta2O5转化为β-Ta2O5，在温度达到1200℃时，β-Ta2O5和碳化钽共同存在于炭基体中，在2800℃温度下，钽完全转化为碳化钽。

The results obtained with an improved asphalt pavement analyzer show that the fatigue life of SAWI is 3.32 times that of the common asphalt concrete. The pull-out test results obtained with a modified material test system indicate that SAWI is of good interlayer bonding capability. Moreover, as compared with the control sample, SAWI is of strong preflection crack resistance.

改进的沥青路面分析仪试验结果表明，SAWI的疲劳寿命是普通沥青混凝土的3.32倍；利用改进材料试验系统的夹具进行的拉拔试验表明，SAWI具有很好的层间结合能力；在与常规的加铺层进行的对比试验中，SAWI结构表现出了优良的抗反射裂缝能力。

The basic structural parameters of pitch2based spherical activated carbon were characterized ,such as specific surface area by BET model , total pore volume , micropore and mesopore volume , sphericity , hardness and content of heavy metal ions . Its adsorption capacity to creatinine and vitamin B 12 , which are typical small and medium toxic molecules in blood , were measured. Hemolysis ratio , number of particles released , pyrexic source and germ count in a man2made kidney made of PSAC were checked .

表征了沥青基球状活性炭的基本结构参数(如比表面积、孔容量、球形度、强度、重金属含量等)，测定了其对血液中典型中、小毒性分子的吸附性能(肌酐和VB12 )和溶血反应率，分析了以沥青基球状活性炭为吸附剂的人工炭肾的微粒释放量、热源和细菌含量，并进行临床试验。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。