This invention discloses a new technology for preparing rear earth ionic doped fiber prefabricated rods with DC-RTA technology in a sol-gel method including preparing sol containing necessary doped ions, coating said sol uniformly on the inner wall of the quartz glass tube and burning it under high temperature to coagulate and vitrify them to a doped layer and repeating the above process to form a fiber prefabricated rod by oxygen and hydrogen flame after the doped layer reaches to a designed thickness and the fiber prefabricated rod can be made to various rare earth ionic doped fibers by an ordinary drawbench technology.

本發(fā)明屬于光纖制造和光纖激光技術(shù)領(lǐng)域日色视频精品，具體公開了一種利用溶膠凝膠方法中的DC-RTA技術(shù)制備稀土離子摻雜光纖預(yù)制棒的新工藝国产盗摄在线一区二区三区。該工藝步驟包括預(yù)先配制好含有所需摻雜離子的溶膠国产女性黄色在线播放完整，將該溶膠均勻涂覆在石英玻璃管的內(nèi)壁后高溫灼燒国产h视频在线观看免费，使之凝結(jié)并玻璃化為一層摻雜層。反復(fù)上述涂覆灼燒過程亚洲欧美综合图片，在摻雜層達(dá)到設(shè)計(jì)厚度后由氫氧焰高溫收棒形成光纖預(yù)制棒啪啪视频黄色。該方法所得到的光纖預(yù)制棒可以通過普通拉絲工藝?yán)瞥筛黝愊⊥岭x子摻雜光纖。

Result: Rhesus BMSC can be got in mass by density gradient centrifugation.; Rhesus BMSC can adhere to PLGA fiber quickly after plant and its growth , division ,proliferration is good; Some cells arrange like rosary on PLGA fiber surface, some cells still form the catenate or flaky cell bridge joined among PLGA fiber.

結(jié)果：采用密度梯度離心的方法可得到大量增殖能力強(qiáng)的獼猴骨髓基質(zhì)干細(xì)胞国产另类综合欧美第三十页；接種后的骨髓基質(zhì)干細(xì)胞很快粘附于PLGA纖維上下载欧美a片大黄片，生長、分裂啪啪啪黄色视频、增殖良好国产a级视频免费，在PLGA纖維表面形成串珠樣排列，部分細(xì)胞還形成連接在PLGA纖維間的鏈狀或片狀細(xì)胞橋日韩精品爆乳激情在线观看网站免费。

The variations of the performance of the fiber Bragg grating Fabry-Perot etalon with the length of the cavity and the reflection coefficient of fiber Bragg grating have been discussed, according to the theory of fiber Bragg grating Fabry-Perot etalon.

并利用光纖光柵法布里-珀羅標(biāo)準(zhǔn)具理論免费a片人人操人人干，分析了光纖光柵標(biāo)準(zhǔn)具隨腔長變化的性質(zhì)、光纖光柵標(biāo)準(zhǔn)具隨光柵反射率變化的性質(zhì)日韩图片精品午夜在线观看免费网站。

To add an appropriate amount of cotton fiber into the bamboo fiber can improve the bamboo fiber's spinnability, pilling resistance, dimensional stability and chubbiness. Also, this measure can endow the products with unique silk texture, ventilation, softness and comfort.

竹纖維混入適量的-纖維黄色视频大全有那些，既可改善竹纖維的可紡性、抗-起毛起球性欧美AⅤ免费福利视频、尺寸穩(wěn)定性及豐滿感等-能亚洲一本岛视频在线观看；又可賦予產(chǎn)品獨(dú)特的絲質(zhì)感、透-性欧美性爱网络、懸垂性欧美性爱色视频、柔軟性、舒適性强暴乱轮视频。

In order to resolve such question,an optic-fiber current measurement system with simple structure and suitable for high voltage frequency converter was developed based on Faraday effect and principle of optic -fiber current sensors,where a high circular bi-refractive optic-fiber coil was used as a current s...

鑒于光纖傳感可以解決上述問題亚州中文字幕精品一区，基于偏振態(tài)調(diào)制的光纖電流傳感器原理，研究一種適用于高壓變頻器的小巧的岛国AAAA级午夜在线影院，基于法拉第磁光效應(yīng)的高圓雙折射光纖電流檢測系統(tǒng)国产日韩一本无码免费专区，用Jones矩陣對光纖系統(tǒng)進(jìn)行分析。

The influence tears off spent main factor to have intensity of fiber length, fiber and fiber coarseness.

影響撕裂度的重要因素有纖維長度免费一级无码婬片A片、纖維強(qiáng)度以及纖維粗度黄片一级片一区。

The layer of fibers is fed into the combing area, where fine metal wires clean out remaining short fiber s and impurities and further parallelize the fiber in the fiber in the comber lap.

纖維層被輸送至梳理區(qū)，梳理區(qū)的細(xì)梳針將殘留的短纖維及雜質(zhì)清除yinyuan国产精品，并使精梳條子中的纖維進(jìn)一步排列順直XXNX日本19视频。

It is shown that beams of reinforced average strain distributing accord with flat section assume; The method of strengthening intension of concrete structure with reinforced materials is a feasible way. The strength of beam can be increased with the number of reinforcement materials be added; The strength of beam is affected by percentage of flexural reinforcement and the compound proportion and fashion of reinforcement materials and the number of reinforcement materials; The capability of bend and stretch and price of inner hybrid fiber is better than sole fiber and exterior hybrid fiber.

通過分析可知：加固后的梁，其平均應(yīng)變的分布符合平截面假定色就操视频在线；使用加固材料來提高混凝土受彎構(gòu)件承載力的補(bǔ)強(qiáng)加固方法是有效的国产欧美日韩操屄视频；構(gòu)件受彎承載力隨加固材料用量的增加而提高；縱筋配筋率超碰在线97人人、加固材料混雜比例及混雜方式99自拍偷拍福利、加固材料用量均對受彎承載力有一定的影響把女人弄爽A片特黄大片在线观看；層內(nèi)混雜纖維的抗彎性能、延伸性能以及經(jīng)濟(jì)性均優(yōu)于單一纖維和層間混雜纖維日本公共厕所尿尿视频。

In this thesis, the oxygen sensitive materials and glucose sensitive materials had been developed by thermo-polymerization method including carrier covalence method and carrier covalence-cross linking method, and the properties had been investigated using the detection experiment of oxygen and spectrophotometer, at the mean time, the applications of oxygen sensitive materials in fiber optical gaseous oxygen sensor and fiber optical dissolved oxygen sensor, and that of biology sensitive materials in fiber optical dextrose sensor had been studied in this paper.

本論文采用熱聚法(包括載體共價法和載體共價-交聯(lián)法)制備氧敏感材料以及在此基礎(chǔ)上制備了對葡萄糖敏感的敏感材料亚洲欧美性视频，利用氧測試實(shí)驗(yàn)或分光光度計(jì)對氧敏感材料進(jìn)行性能評價，研究氧敏感材料在光纖氣態(tài)氧傳感器和光纖溶解氧傳感器中的應(yīng)用以及氧敏感材料在光纖葡萄糖傳感器中的應(yīng)用又大又粗又爽的视频网站。

The main product has each kind of specification: The polypropylene fiber line polyester fiber line polyamide fiber linewashes the cotton thread vinylon line Suspenders curtain rug warp The Hai'an Xu line industry wholeheartedly welcome the new oldcustomer to come the electricity, the incoming letter relationservice, establishes the reciprocal benefit mutual benefit thelong-term cooperation relations, altogether will create the gloriousfuture.

主要產(chǎn)品有各種規(guī)格的：丙綸線滌綸線錦綸線滌棉線維綸線吊帶簾子布地毯經(jīng)線海安徐氏線業(yè)竭誠歡迎新老客戶來電人人色人人插人人操、來函聯(lián)系業(yè)務(wù)，建立互惠互利的長期合作關(guān)系欧美黄网站色视频免费人，共創(chuàng)美好未來黄片al区一区二。