| 1. | Broadband communication network bcn
宽带通信网 |
| 2. | Bcn broadcast communication network
广播通信网 |
| 3. | This is the barcelona conference fashion fixed programs annually that they will be invited to participate in foreign designers bcn fashion week activities
本次时装发布会是巴塞罗那的固定节目，每年他们都会邀请以为国外设计师参加bcn时尚周的活动。 |
| 4. | The effect of growth temperature , catalyst , and content of ferrocene were studied systematically with the help of tem . the " nanobelt " nanotube became to " bamboo - shaped " nanotube with the increase of growth temperature
系统地研究了制备温度、催化剂、不同催化剂配比时最佳制备温度、钻与二茂铁的催化活性比较、 nz及玩对制备bcn纳米管的影响。 |
| 5. | Cnx nanotube with higher concentration of nitrogen was obtained at 780c . the capability of catalyst following the sequence of fe , ni and co . ferrocene has key important role in the growth of cnx nanotube , especially with the help of cobalt
指出在温度为860附近，以钻/二茂铁或镍/二茂铁为催化剂， nz的流量为120 ~ 20osccm ， hz的流量为40sccm附近时制备的bcn纳米管的质量最好，产率也较高。 |
| 6. | 3 . study of cnx nanotube cnx nanotube were synthesis by thermal decomposition of ammonium chloride and ethylenediamine in an na / hfo atmosphere , respectively . we found that there is more " bamboo - shaped " in cnx nanotube made with ethylenediamine
根据透射电子显微镜和扫描电子显微镜观察，分析了bcn纳米管的微观结构，扫描俄歇微探针分析表明， 860时，以钻/二茂铁为催化剂时生成的bcn纳米管中b 、 c和n的原子比例为1 |
| 7. | In this thesis , we will focus on the nanotube structure and synthesis , including disorder multi - wall carbon nanotube , aligned multi - wall carbon nanotube array , cnx nanotube , and bcn nanotube . the effects of growth parameters , which provide scientific basis for pyrolysis of carbon nanotube , were studied systematically . furthermore , layered aligned multi - wall carbon nanotube arrays separate by catalyst particles were synthesized on the surrounding of reaction quartz tube by injection of xylene - ferrocene for the first time , which provided a chance for the accurate measure and potential use of carbon nanotubes
在对碳纳米管制备的基础上，全面系统地研究了碳纳米管的影响因素，对热解法制备碳纳米管确定了可供参考的制备工艺参数，在些基础上，首次成功地直接在反应炉内石英管壁上直接生长分层生长的定向碳纳米管，为纳米管的性质的测量提供了一定的基础，而且为定向碳纳米管在微电子学领域的应用提供可能性，能成功地实现定向纳米管的固定长度生长。 |
| 8. | The field emission property of carbon nanotubes could be increased by substitution of nitrogen for some of carbon , however , however , that of bcn nanotubes was poor . 1 . study of disordered multi - wall carbon nanotube carbon nanotubes with different diameter distributions have been produced by thermal decomposition of a ferrocene - xylene mixture under different temperatures and different catalysts in an ar ( or n2 ) / h2 atmosphere
结合透射电镜、扫描电镜及拉曼光谱，系统地研究了以钴二茂铁为催化剂时不同温度下、以及在860时，分别以钴二茂铁、镍二茂铁、钴、镍钴不同催化剂、不同保护气体对高温热解法制备的多壁碳纳米管结构、产率等的影响，对产物的形态、结构进行分析。 |
| 9. | Layered carbon nanotube with special length could be synthesized with this method . cnx nanotube and bcn nanotube were obtained with ethylenediamine as nitrogen source , and the growth parameters were screened at the same time . we found that the value of id / ig , id * / ig and fwmh of three bands could be used to estimate the degree of disorder
无序多壁碳纳米管的研究：在以二甲苯为碳源，以ar (或n _ 2 )和h _ 2为保护气体，采用单级加热的方法制备碳纳米管的基础上，着重优化了热解法制备碳纳米管时的工艺参数。 |
| 10. | Films of the cnx nanotube were produced by thermal decomposition on fe - coated si substrates , and their low field emission properties have been investigated . a high - emission current density of 1 . 28ma / cm2 for an applied field of 2 . 54v / u m was achieved , implying cnx nanotubes have better electron field emitter properties than the films of carbon tubes and bcn tubes do under same experiment conditions
860热解乙二胺，在沉积有铁催化剂的硅片上生长出cn _ x纳米管薄膜，并进行了低场致电子发射特性测试，外加电场2 . 54v / m时，发射电流达到1 . 28ma / cm ~ 2 ，比相同实验条件下制备出的碳管、硼碳氮管薄膜的场致电子发射性能优越。 |
