管狀碳 的英文怎麼說
中文拼音 [guǎnzhuàngtàn]
管狀碳
英文
cored carbon-
To control the electron beam emitted from the carbon nanotube ( cnt ) cathode, four different electron chunnels are designed
摘要為了控制碳納米管陰極發射電子束的形狀，設計了4種電子通道來控制電子束軌跡。Ayres studied coronary flow and myocardial metabolic response to a cute elevation of cohb in man during diagnostic cariac catheterization。
艾爾斯研究了診斷中施行導管插入術期間人的冠狀動脈血流量和心肌代謝對一氧化碳急劇上升的反應。Sap 1. the solution of mineral salts and sugars that is found in xylem and phloem vessels and oozes out of cut stems
樹液： 1 .是植物木質部與韌皮部管狀分子中存在的含多種無機鹽與碳水化合物的混和溶液，可以從植物莖上的切口處滲出。Acicular ferrite formation in a pipeline steel with thermo - mechanical control process
管線用超低碳鋼中針狀鐵素體的形成及強韌化行為The diamerter is even distributed and is much smaller than that of the holes. maybe there are several nanotubes grown from one hole. for two - step oxidation films, the diameter of the prepared nanotubes is the same as that of the holes
一次氧化的模板制備了直徑均勻的竹節狀碳納米管，但直徑徑遠遠小於模板孔的直徑，因此一個孔內可能長出數根碳管。While still not evidenced in our experiment, liquid - phase doping of ammonium molybdate solution has been broadly agreed to be able to significantly increase the yield of swnts. we have developed another doping method, solid - phase doping of metal molybdenum at elevated temperature, and discovered that sol - gel prepared catalyst with such doping can be used to grow multi - wall carbon nanotube bundles in a very large scale
對催化劑進行摻鉬處理表明，它可顯著提高催化劑催化裂解甲烷合成納米碳管的能力：作者在高溫下進行了催化劑摻入金屬鉬的實驗，得到了一種性能優異的催化劑，以此制備的多壁納米碳管的呈束狀分佈，所得的粗產物與催化劑之間的重量比達15倍以上。The hp2500 cartridge uses a clear glass window and a led emitter and receiver to check for toner. maybe storage conditions or temperature may have affected it
2500等機器的粉倉都有一個透明的小窗口，一個發光二級管的發射器和接受器，用於「監測」碳粉的存量。儲存的方式和溫度也會影響計數器的工作狀態。The content of this paper contains : chapter one introduces the basic concepts, developing course, research significance, application foreground and the present research state of other countries in the world. chapter two introduces the structure characteristic and the performances and applications in the areas such as mechanics, physics and chemistry, then analyzes the present state, existing problem and developing trend of nanotubes research. chapter three introduced several synthesis methods and purification methods of nanotubes and nanofibers detailedly. chapter four concentrates on the research of two foreign research groups who use carbon - hydrogen gases flames to produce carbon nanotubes
論文的主要結構如下：第一章介紹了納米材料科學的基本概念、發展歷程、研究意義、應用前景及世界各國的研究現狀。第二章闡述了碳納米管的結構特徵以及力學、物理和化學等各方面性能和應用，並且分析了碳納米管這種新型碳材料研究目前現狀、存在問題及發展趨勢。第三章詳細介紹了碳納米管和碳納米纖維的幾種傳統制備方法及純化方法。The carbon dioxide laser facilitates resection by providing a bloodless field and reduces the possibility of viral seeding of the conjunctiva by sterilizing the operative site and sealing the lymphatics
二氧化碳雷射有良好的止血作用，並對手術區域內完全滅菌，可封閉淋巴管以阻止病毒擴散，以利乳頭狀瘤之完全切除和預防其復發。Catalytic synthesis of bamboo - shaped carbon nanotubes by ferrocene
用二茂鐵催化生長竹節狀碳納米管Flux cored wires for gas shielded and self - shielded metal arc welding of mild steel, high strength steel and low temperature service steel
低碳鋼高強度鋼和低溫鋼用氣保護和自保護金屬電弧焊用管狀焊絲The influence of nano - al2o3 on the sintering and the properties of the si3n4 ceramics was researched in this paper. the samples with different amount of nano - al2o3 were obtained by using pressureless sintering at 1600, 1650, 1700 in the nitrogen atmosphere. the microstructure and the composition of the ceramics were determined by the means of x - ray, sem, micro - hardness meter etc. it is show that the sisty ceramics can be densified at 1650c to % percent of the theory density through the addition of nano - al2o3 ( the value could be 90 percent by other technique ). the crystalline growth of the cylindrical - si3n4 and the ratio of its longitude to its diameter are increased with the addition of nano - al2o3. a uniform microstructure and an fined crystal as well as more sialon phases can be obtained in the si3n4 ceramics through the addition of that
實驗結果表明：在碳管爐中、氮氣保護下進行燒結，添加劑為納米al _ 2o _ 3粉末時，由於納米粉末的高活性、高燒結驅動力，在1650就可使si _ 3n _ 4完全地燒結，並使其緻密度可達理論密度的96以上（比其它工藝高6左右） ；同時，納米al _ 2o _ 3地加入大大促進了長柱狀? si _ 3n _ 4的生長和發育及柱狀晶長徑比的提高，使微觀結構均勻、細化，形成了更多力學性能優異的固體? sialon相，減少了不利於陶瓷材料性能的晶間玻璃相，凈化了晶界。Considering the geometrical figure of tube and tip, we calculated the surface charge density relative distribution curve of metallic carbon nanotube
摘要考慮碳納米管尺寸及端帽形狀，計算得到了比較精確的金屬型納米管表面電荷密度相對分佈曲線。In order to play the whole advantage of supply chain, realize the information sharing, supplement with each other ' s advantages, reach a result of two - wins and set up a steady and healthy cooperative partner and strategic alliance relation, this paper proposes to choice the supplier by combining the actual situation of kunlun machine factory according to the supplier ' s choice standard and method, and then sets up a supplier evaluated indexes system of kunlun machine factory. with the example of the purchase of carbon - forms steel in hai - 2000 productions, the fuzzy - evaluation method is applied in evaluate three supplier of kunlun machine factory, and on the basis of it the encourage measures of different kinds of suppliers is studied. the paper also analyses the influence of e - business to enterprises material purchased and probes into the material purchase strategies under the environment of e - business ; finally, a supply chain integrated performance evaluate index system is designed according to the analyses of supply chain management theory, and two methods of self - evaluated and pole - evaluated are adopted in evaluate the supply chain purchase integrated performance of kunlun machine factory
論文在對采購管理和供應鏈管理理論綜述的基礎上，根據昆侖機械廠采購管理現狀和軍品采購的特點，分析了昆侖機械廠物資采購中存在的問題，研究了昆侖機械廠物資分類采購的策略；為了發揮供應鏈的整體優勢，實現信息共享，優勢互補，達到雙贏效果，建立穩定健康的戰略合作夥伴，按照供應商的選擇標準和方法，結合昆侖機械廠實際對供應商進行選擇，並建立了昆侖機械廠供應商綜合評價的指標體系；以昆侖機械廠的海2000產品中的碳結鋼物資采購為例，運用模糊綜合評價方法對該廠的三家供應商進行了綜合評價，在此基礎上，研究了不同類型的物資供應商的激勵措施；論文分析了電子商務對企業物資采購的影響，探討了昆侖機械廠電子商務環境下的物資采購策略；根據供應鏈管理理論構建了昆侖機械廠物資采購供應鏈，設計了昆侖機械廠供應鏈采購整體績效評價的指標，採用自我評價和標桿評價方法對昆侖機械廠供應鏈采購整體績效進行了評價。To go beyond what climate specialists call the “ business as usual ” scenario, the u. s. must follow europe and even some of its own state governments in instituting new policies that affix a price on carbon ? whether in the form of a tax on emissions or in a cap - and - trade system ( emission allowances that are capped in aggregate at a certain level and then traded in open markets )
為了進一步走向氣候專家所說一切如常的理想狀況，美國必須跟隨歐洲甚至自家州政府的腳步，制訂新的政策，為碳標上售價，不管是對排放量課稅，或是採取限量管制與交易（在某種程度上管制總排放量，然後讓這些排放量在市場上公開交易） 。Flux cored wires for co2 gas shielded arc welding of atmospheric corrosion resisting steel
耐大氣腐蝕鋼的二氧化碳氣體保護電弧焊用管狀焊絲Radiation characteristics were studied on curvature and arrangement of radiation reflecting cover based on system research of carbon fiber far - infrared tubular electric - heating element, which supply a design reference to obtain homogeneous steady radiation field
摘要以碳纖維遠紅外管狀電熱元件為研究對象，研究了輻射反射罩的曲率及排布位置對輻射特性的影響，為獲得均勻穩定的輻射場提供了參考。Pulickel ajayan and his colleagues at rensselaer polytechnic institute in new york made it by mixing carbon nanotubes ( cylindrical, electrically conductive molecules made of carbon atoms ) with cellulose, the stuff of paper
紐約萊塞拉爾理工學院材料科學和工程學院的普利克爾?阿加延及其同事將碳納米管道（應用碳原子製造的管狀電導分子）和纖維素（造紙的原料）加以混合製造了這種新材料。The comparison of carbon nanotube and active carbon and graphite nanofibers used as electrode material is also presented. a composite electrode material comprising carbon nanotubes and ruthenium oxide is obtained and the capacitance of supercapacitor reaches 270f / g. the carbon nanotube and the natural manganese oxide compounded for the first time and the initial results were achieved
本文採用納米碳管作為超級電容器電極材料，得到比電容量為110f g的超級電容器結構單元，討論了粘結劑、電解液等多種影響因素，並與乙炔黑電極和魚骨狀碳纖維電極進行了對比；制備了納米碳管與氧化釕復合材料，得到比電容量為270f g的超級電容器結構單元；本文還首次將納米碳管與大洋錳礦復合用作超級電容器電極材料，取得了初步成果，為天然礦物的開發利用開辟了一個新的發展方向。Carbon nanotubes composed of carbon atoms can be considered approximately as one - dimensional systems with nanostructures, which have singular and abundant physical capabilities
碳納米管是全碳原子組成的準一維管狀納米結構材料，有著十分奇特而豐富的物理性能。分享友人