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1.
采用有要有低真空低温等离子体对兔毛纤维进行表面改性,可使纤维表面摩擦系数明显增加,进而增强了纤维间的抱合力,提高了兔毛纤维的可纺性,有效地减少了兔毛衫的严重掉毛。  相似文献   

2.
兔毛纤维采用空气低温等离子体处理,使其形态结构和理化性能发生变化,从而提高兔毛纤维的染色性能,增加上色率及纤维抱合力,提高可纺性。  相似文献   

3.
为了改善兔毛纤维的性能,采用等离子体对兔毛进行改性.介绍了等离子体改性兔毛纤维的基本原理,比较了改性前后兔毛纤维的表面形态结构、摩擦系数、卷曲度和上染百分率.结果表明:等离子体改性能减少兔毛织物掉毛并提高兔毛纤维的上染百分率.  相似文献   

4.
采用有极低真空低温等离子体对兔毛纤维进行表面改性,可使纤维表面摩擦系数明显增加,进而增强了纤维间的抱合力,提高了兔毛纤维的可纺性,有效地减少了兔毛衫的严重掉毛。  相似文献   

5.
为了解决兔毛加工中的问题,因为纯兔毛加工难度大,过去兔毛纺纱以兔毛和羊毛混纺为主,随兔毛纺纱技术的提高,兔毛纱线向高比例和多种纤维混纺发展。新型染整技术的应用也有助于提高兔毛产品的品质。本文综述了近年来在兔毛的纺纱、染色整理方面的新进展。  相似文献   

6.
为了解湿度对兔毛纤维加工过程的影响 ,以便确定合理的加油水量及车间温湿度 ,采用不同含湿的兔毛纤维对其表面摩擦性能及纤维断裂强力进行了测试 ,发现随湿度的增加 ,兔毛纤维的断裂强力下降很多 ,而伸长增加则不明显 ;纤维表面摩擦系数随湿度的增加而增大  相似文献   

7.
作者使用超薄切片,冷冻断裂和剥离技术在分析电镜中以透射(TEM)、扫描透射(STEM)和扫描(SEM)成象模式研究了兔毛纤维的微观结构。兔毛纤维是一种带有间隔层的中空纤维,中心部分是蜂巢状结构。主要结构成份是角质、皮质和间隔层物质。没有多孔的髓质。从组织学结构考虑,皮质包含正、副和仲皮质成分。一般在兔毛纤维横截面上正副皮质不呈双边分布。基于所作的观察,提出了兔毛纤维的结构模型。  相似文献   

8.
兔毛织物属中高档产品。由于它具有手感滑爽,轻柔美观和保暖性好等优点,深受消费者的喜爱。但市场上的兔毛织物,都是与羊毛等其它纤维混纺而制成的。这是因为兔毛纤维表面异常光滑,纤维之间的抱合力差,纯兔毛不但难纺成毛纱,成品穿着时也极易脱毛。  相似文献   

9.
在我国,开发兔毛纤维织物具有得天独厚的条件和广阔前景,这是由有关行家经过调查研究后提出的看法。我国兔毛资源十分丰富,每年兔毛产量约为7000吨,占世界总产量的90%。我国的兔毛纤维长、白、轻、净,手感柔软,富有  相似文献   

10.
纯兔毛纱线技术 由广东省普宁市健发毛织有限公司研制开发的“纯兔毛纱线技术’最近成功地通过了由广东省科委组织的技术鉴定。 普宁市健发毛织有限公司对“纯兔毛纱线技术”研制了独特纯兔毛纱线生产工艺路线,在原FNT—18型兔毛梳理机上进行改进,解决了兔毛在梳理成条中纤维平行度、卷曲度及毛粒、杂质等技术难题,  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

13.
The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3~4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰~ -7.8‰, PDB) and matrix dolomites (-6.6‰~ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084~0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078~0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.  相似文献   

14.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

15.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

16.
AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…  相似文献   

17.
There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.  相似文献   

18.
In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.  相似文献   

19.
正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-  相似文献   

20.
We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-  相似文献   

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