成层的

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.

本发明属于光纤制造和光纤激光技术领域，具体公开了一种利用溶胶凝胶方法中的DC-RTA技术制备稀土离子掺杂光纤预制棒的新工艺。该工艺步骤包括预先配制好含有所需掺杂离子的溶胶，将该溶胶均匀涂覆在石英玻璃管的内壁后高温灼烧，使之凝结并玻璃化为一层掺杂层。反复上述涂覆灼烧过程，在掺杂层达到设计厚度后由氢氧焰高温收棒形成光纤预制棒。该方法所得到的光纤预制棒可以通过普通拉丝工艺拉制成各类稀土离子掺杂光纤。

This paper made displacement calculation and analysis adopting beam3, beaml88 units through ansys software, then compared the displacements of upper steel frame of mixed-layer structure and single story workshop under different loads and established the reasonable domain of displacement coefficient about mixed-layer structure, thus provided references and basis for the design of such structure.

针对一种新型结构即混凝土与钢结构混合而成的结构一混层结构，通过ansys软件，采用beam3、beam188单元对此新型结构进行位移计算及分析，并通过在不同荷载工况下混层结构的上层钢架位移与单层厂房的钢架位移进行比较分析，确定混层结构位移影响系数的合理范围，为此类结构的设计提供参考依据。

The high porosity zone occurrence of the Tertiary reservoir composed of clastic rocks in the Yuanyanggou region is controlled by diageneses and sedimentary facies, lying in the early diagenetic stage A ~ the late diagenetic stage A1 and the area of the sandstones developing in debouch bar, braided-divided flow channel, raised bank and channel bar is namely high porosity zone development of the lower Shasan Member (Es33) and the upper-middle Shasan Member (Es31-2); furthermore, lying in the late diagenetic stage A2 and the area of the sandstones developing in debouch bar, braided-divided flow channel, raised bank and channel bar is namely high porosity zone comparative development of the lower Shasan Member (Es3) and the upper-middle Shasan Member (Es31-2), the physical property of the reservoir is relatively worse.

鸳鸯沟地区第三系碎屑岩储层高孔带分布受成岩作用和沉积相的控制，处于早成岩阶段A期～晚成岩阶段A_1期，且有河口坝、辫状分流河道、天然堤和心滩沉积微相砂体发育的区域即为该区沙三下亚段和沙三中上亚段储层高孔带的发育区；而处于晚成岩阶段A_2期，且沉积相也为河口坝、辫状分流河道、天然堤和心滩沉积微相砂体发育的区域即为鸳鸯沟地区沙三下亚段和沙三中上亚段储层高孔带的较发育区，储层物性相对较差。

The evolutionary model organic beach or reef reservoir, controlling factors of which are sedimentation, digenesis and tectonics ,are established according to the result of sedimentary facies and digenesis. At last regional distribution of reservoir has been predicted. Comprehensive study indicates the dark, 50-300 m thick upper Permian series, which is rich in the organic material and biota , is beneficial to formation and protection of petroleum and natural gas. Moreover the stratigraphy possess with better reservoir ability. The reservoir distributed in shallow glacis along Beichuan Tongkou - Guangyuan Changjianggou ,He 12 well - She 1 well - Jiange - Cangxi Yongningpu -Long 4 well - Bian 1 well in Wujiaping stage and in platform edge beach along Beichuan Tongkou - Jiangyou Shuigentou - Jiange -Cangxi Yongningpu - Nanjiang .

综合以上，本文认为研究区上二叠统地层厚50—300m，颜色较深、生物含量多、富含有机质，并且该套地层自形成后，大多直接进入埋藏成岩环境，是一套十分有利于油气的形成与保存的地层；同时该套地层的局部层段具有一定的储集性能，在吴家坪期储层主要分布在北川通口—广元长江沟、河12井—射1井—剑阁—苍溪永宁铺—龙4井—扁1井一带，在长兴期储层主要分布在北川通口—江油水根头—剑阁—苍溪永宁铺—南江一线。

The usual travel time tomography method is based on geometrical ray theory,however,it assumes that the seismic wave has very high frequency,which often makes the tomographic inversion have ill posed problem because of the sparse ray distribution in the model space and finally affects the reliability and resolution of the tomographic results.

基于几何射线理论的旅行时层析方法假设地震波频率足够高，这样往往由于射线存模型空间的稀疏分布，使层析反演问题具有严重的不适定性，从而极大地影响层析成像结果的可靠性和分辨率。

Self-buckled kerbstones consist of two different layers of compound cement. They are of many kinds of designs and colors. On the outer layer, there are illuminating materials made by special materials. The inner layers are made of common cement, so they are low in price. At the two ends of the kerbstone, there are concave and raised troughs for self-buckling. So they are convenient in installment. Different size of holes for draining water can be drilled according to actual situation.

自扣式侧石是由两层不同颗粒级配比的复合混凝土构成，具有多种图案和色彩，面层附有由特殊材料制作成的发光材料，内层为普通混凝土，成本低廉；侧石的两端有凹凸卡槽自扣连接，安装方便，不易沉降和倾斜；还可根据不同需要的距离可在不同位置上留有大小不同的排水孔，雨天能够及时排除路面积水，从而丰富花池，花坛及道路两侧绿化带水源。

Our main products are: true, yellow gold glass Mosaic Mosaic （firing on the market at present stickup overcome and the instability of debonded）.

目前公司的主要产品有：烧成真黄白金玻璃马赛克，（烧成马赛克克服了目前市场靠粘贴而成的易脱层变色等不稳定性）。

This paper describes laminar small faults affected a number of factors to take specific measures :Pre-stack time migration through the use of technology to improve inter-layer tomography for the accurate identification and de脚本ion interlayer fault lay the foundation;Through meticulous depicts dip scanning technology to small fault;Phase-edge technology frequency bands using a broadband seismic data to better identify the fault system.

本文针对影响描述层间小断层的因素采取了多项有针对性的措施：通过采用叠前时间偏移技术改善层间断层成像，为准确识别与描述层间断层奠定基础；通过地层倾角扫描技术来细致刻画小断层；利用优势频带分频相位技术较好地实现了宽频带地震资料的断裂系统识别。

Results: l、The optimal scan parameters for chinese people are flow rate of 3. 0 mL/sec and total injection 125ml. 2、Visibility of coronary arteries and segments: only those proximal and mid segment is image quality sufficient to allow a semiquantitative assessment. 3、Detection of Atherosclerotic Plaque: CT coronary imaging revealed highest sensitivities for the detection of atherosclerotic wall changes the sensitivity of stenoses was 86. 3％. 4、MSCT coronary angiography is easy to prove the entire anatomic structure of coronary and it is an effective technique for evaluating coronary patency. 5、MSCT coronary angiography correctly identified all normal controls and all patients with coronary artery fistula. The anatomic course of the coronary artery fistula was correctly classified. 6、A11 severe lesion could be visualised by

结果：1、不同的扫描技术参数所获得的造影图像质量不同，注射速率3.0ml/s组以及125m1对比剂总量组比较适合国内患者。2、多层螺旋CT冠状动脉造影可显示冠状动脉的主要分支，尤其是冠状动脉的近、中段，显示率在90％以上。3、多层螺旋CT冠状动脉造影对狭窄病变的敏感性为87.3％，能检出冠状动脉造影不易发现的细小斑块，判断狭窄的原因及斑块的特征。4、多层螺旋CT冠状动脉造影可显示搭桥血管的形态、位置及通畅程度，显示桥血管及支架的内腔，安全便捷。5、多层螺旋CT显示冠状动脉畸形准确性高（3/3），多种成像方法可弥补冠状动脉造影显示的不足。6、仿真内窥镜可显示冠状动脉内膜和内腔，显示狭窄斑块的性质。

IThe final product of mis task is based on C/S management system of database with a three-tiered structure of database, application and client.

对于数据的安全性本系统也给予了充分的考虑。本系统最终产品是一个基于C／S的分布式数据库管理系统。系统设计成数据层、业务层、客户层三个结构。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失