一种新的压实校正法

根据压实前后压实曲线的相似性及单调性,设定古孔隙度-深度、古密度-深度函数,结合压实前后地层骨架体积不变、骨架质量不变原理.建立回剥压实校正方程,从而恢复地层古厚度及地层古密度,并且保证压实前后地层骨架密度不变。     

径向水平钻孔新技术

径向水平钻孔技术是一种新型有效完井方式，不仅能穿过近井污染带，而且不会造成二次压实带，从而提高油井完善程度。简要介绍了该技术的优点、国内外发展状况及发展前景。     

Research on Performance of ZnS：TbF3 Thin Film Electroluminescence Device

The electroluminescence of ZnS doped with terbium fluoride thin films prepared by radio frequency magnetron sputtering method was reported. The characteristics of the ZnS : TbF3 thin film electroluminescence devices, such as film characteristics of the ZnS:Tb active layer, substrate temperatures during magnetron sputtering and Tb concentration of the active layer, were systematically investigated. The results show that annealing can evidently improve the luminescence performance of the luminescence device.     

垂直轴风力发电机主轴结构优化设计

在全面分析垂直轴风力发电机主轴结构和受力的基础上,运用ANSYS Workbench建立垂直轴风力发电机主轴的参数化有限元模型。以主轴的强度和刚度为约束条件,以主轴质量最小为目标。对主轴的内径、支承跨距、轮辐与支承的距离和轮辐跨距进行了优化计算。并对优化前后结果进行了对比分析。计算结果表明:垂直轴风机主轴结构优化后,在保证各项力学性能的前提下,主轴质量得到较大幅度的减小。从而降低了主轴的生产成本,提高了垂直轴风力发电机的市场竞争力。     

Study on Effect of Flux on CeMgAl_(11)O_(19)∶Tb ~(3 ) Phosphor

Asthebackgroundlightofhighqualityliquidcrystaldisplay (LCD) ,coldcathodefluorescentlamp(CCFL)becametheresearchemphasisalongwiththedevelopmentofthemarketofLCD .AnimportantissueagainsttheapplicationofCCFListhebrightnessandlifetimeofthephosphors .CeMgAl11O19∶Tb3 (CMAT)isaveryimportantgreen emittingphosphorfortheim provementofbrightnessofCCFL .CeMgAl11O19∶Tb3 isakindofhexagonalpoly aluminatewiththestructureasshowninFig .1.Thecrystalstructureissimilartomagnetoplumbite (idealformula…     

Study on Effect of Flux on CeMgAl11O19∶Tb3+ Phosphor

High calcination temperature is an important factor in the preparation process of CeMgAl11O19∶Tb3 . To decrease the temperature, different fluxes(H3BO3, MgF2 and AlF3) were tested in order to compare their influence on the luminescence property and particle size distribution of CeMgAl11O19∶Tb3 . The result shows that when the content of MgF2 is 0.1 mol/mol, the intensity of luminescence can attain a maximum. Furthermore, MgF2 can improve the particle size quality of the phosphor. So MgF2 can take the place of the conventional flux H3BO3 to prepare high quality CeMgAl11O19∶Tb3 phosphor. In addition, the relation between phosphor property and content of AlF3 was also studied. The crystal structure of the phosphor was analyzed by XRD method. The phase composition analysis shows that the reason of decrease of the brightness of CeMgAl11O19∶Tb3 phosphor is the emergence of TbAlO3 and α-Al2O3 during the preparation process.     

Luminescence Properties of(Y,Gd)Al3(BO3)4∶Eu3+ under VUV excitation

(Y, Gd)Al3(BO3)4∶Eu3 samples were prepared by the conventional solid state reaction. The XRD results indicate that the crystal symmetry is low. The excitation spectrum is composed of two broad bands centered at about 170 and 250 nm respectively. In the emission spectra, the peak wavelength is about 616 nm under 147 nm VUV excitation. The luminescent chromaticity coordinate and the relative intensity change along with Gd3 mole concentration in the range of 0.15 to 0.85 mol(and Eu3 mole concentration, 0.02 to 0.1 mol). The correlative data show that the concentration quenching occurs when the Eu3 mole concentration ranges from 0.02 to 0.1 mol, and the Gd3 →Gd3 , Gd3 →Eu3 and host→Eu3 , Gd3 energy transfers exist, and Gd3 mole concentration influences Eu3 emission.     

涤纶绉线捻度及碱减量程度对织物绉效应的影响分析

通过FAST织物风格仪中的FAST-1压缩仪测量绉织物表观厚度变化,来分析纬丝捻度大小及碱减量处理程度对丝织物起绉效应的影响,提高绉类面料生产设计水平。     

Luminescence studies of MBrCl： Eu2＋ （M=Ca, Sr, Ba）

Europium doped MBrCl (M=Ca, Sr, and Ba) phosphors were prepared by solid state reaction in reductive atmosphere. Photolu-minescence (PL), photostimulated luminescence (PSL) after X-ray irradiation and optical absorption studies of MBrCl:Eu2+ (M=Ca, Sr, and Ba) revealed that: (1) blue light emission, under the excitation of 300 nm, was observed in all these phosphors; (2) the shape of the emission spectra in CaBrCl:Eu2+ could be changed by varying the bromine/chlorine ratio during synthesis, while that in SrBrCl:Eu2+ and BaBrCl:Eu2+ showed no change; and (3) PSL was observed in SrBrCl:Eu2+ and BaBrCI:Eu2+ after X-ray irradiation. Difference absorption spectrum (DAS) in SrBrCl:Eu2+ showed two broad bands centered at about 470 and 570 nm, and DAS in BaBrCI:Eu2+ showed two bands at about 550 and 675 nm, respectively. This enabled the use of He-Ne laser (633 nm) or even semiconductor light-emitting diodes (LED) instead of gas lasers for photostimulation.     

时间积分声-光相关检测的研究

利用声光布喇格衍偏转器成功地设计并制出了时间积分声－光相关器,实现了对模拟雷达信号（占空式为５０％、重复频率１ＭＨｚ和载频为１４０ＭＨｚ）的时间积分声－光相关检测。