重磁数据处理系统应用程序由Win16到Win32移植中的若干问题   总被引：1，自引：1，他引：1  

张新兵  邹恒华  王家林 《物探化探计算技术》2002,24(1):77-80

作者在对Win16和Win32进行比较的基础上，结合作者在移植过程中的实际经验，对遇到的一些问题和解决办法以及移植步骤作了详细的探讨和总结。  相似文献   

地下水^32Si年龄测定方法：液体闪烁计数法     

刘存富  王佩仪 《水文地质工程地质》1997,24(6):5-9

＾３２Ｓｉ是宇宙成因的放射性同位素，其半衰期约为２００ａ，应用＾３２Ｓｉ作为示踪剂测定地下水年龄的范围为５０－１０００ａ。本文介绍了应用Ｆ ｅ（ＯＨ）３共沉法从天然水中提取ＳｉＯ２的制备方法。  相似文献   

放射性同位素^32Si及其研究进展   总被引：1，自引：0，他引：1  

王佩仪  晁念英 《地质科技情报》1995,14(4):93-99

放射性同位素＾３２Ｓｉ的半衰期介于常用的环境同位素＾３Ｈ和＾１４Ｃ之间，能测定５０￣１０００ａ之间水的年龄，是一个其它同位素所不能替代的测年工具，本文介绍了＾３２Ｓｉ的起源、在水圈各部分的分布规律，影响因素、测试方法及其在海洋学、冰川学和水文地质学方面的应用研究。  相似文献   

Calculation of the contribution of single-zone production by ultraviolet spectrum technique： A case study in well QHD32-6-3 field     

徐耀辉  陈丹  向廷生  文志刚  林青 《中国地球化学学报》2007,26(1):80-83

Based on the established mathematic model and graphic interpretation, a new method, which is used to calculate the contribution of single-zone production in a commingled producing well by the ultraviolet spectrum technique, has been established. The standard plate was drawn using the extinction coefficient E of sample oils formulated artificially as y-axis and the wavelength as x-axis. The curve resulting from the UV analysis of sample oils in the commingled well was inserted into the standard plate and compared. The proportion of each single zone in the commingled producing well was identical with the proportion of the curve which is closest to the curve of sample oils formulated artificially. In the well QHD32-6-3 field, taking well A22 for example and using this method, the production contribution of a single zone was calculated. The result showed that the Nm4 zone is a major "contributor", the proportion of the Nm4 zone is 70%, and that of the Nm1 zone is 30%. The ultraviolet spectrum technique provided a new reservoir geochemical technique of monitoring production contribution, especially for biodegraded heavy oil, but it has some limitation, just depending on the GC fingerprint technique.  相似文献   

A TiO study of the black hole binary GRO J0422+32 in a very low state     

N. A. Webb  T. Naylor  Z. Ioannou  P. A. Charles  T. Shahbaz 《Monthly notices of the Royal Astronomical Society》2000,317(3):528-534

We present 53 simultaneous photometric ( I band) and spectroscopic (69009500 Å) observations of GRO J0422+32, taken during 1997 December. From these we determine that J0422+32 was in its lowest state yet observed, at I =20.44±0.08. Using relative spectrophotometry, we show that it is possible to correct very accurately for telluric absorption. Following this, we use the TiO bands at 7055 and 7589 Å for a radial velocity study and thereby obtain a semi-amplitude of 378±16 km s¹, which yields f ( M )=1.191±0.021 M and consistent with previous observations. We further demonstrate that this little-explored method is very powerful for such systems. We also determine a new orbital ephemeris of HJD=245 0274.4156±0.0009+0.212 1600±0.000 0002 E .
We see some evidence for an ellipsoidal modulation, from which we determine the orbital inclination of J0422+32 to be less than 45°. We therefore calculate a minimum mass for the primary of 2.22 M, consistent with a black hole, but not necessarily the supermassive one proposed recently (1997) by Beekman et al. We obtain an M45 spectral type for the secondary star, and determine that the secondary contributes 38±2 per cent of the flux that we observe from J0422+32 over the range 69508400 Å. From this we calculate the distance to the system to be 1.39±0.15 kpc.  相似文献   

Dating the recent past   总被引：2，自引：1，他引：1  

S.J. Gale   《Quaternary Geochronology》2009,4(5):374-377

The dramatic environmental changes of the last 500 years are likely to continue into the future and to have an increasing impact on both the Earth and human society. Any understanding of future environmental change is thus critically dependent on our capacity to reconstruct the environmental changes of the past. Fundamental to this is an ability to place the environmental responses of the last half millennium within a reliable chronological framework. Unfortunately, this most recent part of the geological timescale presents us with some of the greatest challenges for dating. With the exception of ²³⁰Th/²³⁴U methods, whose use is restricted to the rather specific depositional environments of shallow marine and terrestrial carbonates, there is no established geochronometric tool capable of dating more than a fraction of the recent past at a resolution adequate to tackle the environmental issues of this period. This challenge has been met by refining existing procedures (including ¹⁴C, ⁴⁰Ar/³⁹Ar, event chronostratigraphy and optically stimulated luminescence) and developing new ones (such as ³²Si). These offer a means of calibrating the high-resolution environmental records of the last 500 years and answering the critical environmental questions presented by this period.  相似文献   

纳米Cu₂O/珍珠贝壳复合材料的光催化杀菌机理研究     

李红  郭书举  李宪璀  王新亭  周利  朱校斌 《海洋科学》2012,36(11):38-43

研究了纳米 Cu2O/珍珠贝壳复合光催化材料对嗜水气单胞菌、副溶血弧菌、鳗弧菌和溶藻胶弧菌的杀菌效果,并考察了材料浓度、光源强度、作用时间等因素对杀菌作用的影响.结果表明,该复合材料对四种病原菌均具有较强的杀灭能力,复合材料浓度为100 mg/L时,无论在紫外光还是太阳光下照射2 h,杀菌率均达到100%; Fe (phen)32+光度法验证了复合材料溶液在光照过程中产生了具有强氧化活性的自由基.  相似文献   

传感器智能化及电子数据表格更新方式的研究     

朱晓博马尚昌  张素娟杨笔锋 《成都信息工程学院学报》2014,(1):59-64

针对传感器发展现状、特点及应用,利用STM32微控制器与轻量级TCP/IP协议栈结合的方式实现了传统传感器的智能化,并利用在程序中编程技术实现了传感器电子数据表格TEDS(Transducer Electronic Data Sheets)的在线更新。一方面实现了传统传感器的智能化,使其能够自动识别、即插即用,并支持在线更新与升级,另一方面实现了传感器的网络化,方便传感器的远程访问与控制。  相似文献   

两株异化铁还原菌与蒙脱石交互作用实验研究     

曹维政  朱云  鲁安怀  李艳  王清华  张虓雷  王浩然  杨晓雪  王长秋  董海良 《矿物岩石地球化学通报》2011,30(3):311-316

本文选用采自辽宁某矿的天然钠基蒙脱石与两株异化铁还原菌模式菌株Shewanella putrefaciensCN32和She-wanellaoneidensisMR-1,研究了蒙脱石与微生物之间的交互作用。结果表明这两株菌均能还原蒙脱石晶格中的三价铁,使微生物作用于蒙脱石之后的反应体系中二价铁离子浓度明显升高,反应悬浊液颜色由无色变为浅绿色。透射电子显微镜晶格条纹像显示微生物作用后的粘土矿物微结构发生明显变化,其层间距d001值从1.29 nm分别减小为1.06 nm(CN32)和1.02nm(MR-1)。上述结果综合指示这两株异化铁还原菌能够通过还原天然蒙脱石结构中的三价铁促进矿物发生物相转变。  相似文献   

Keck infrared observations of GRO J0422+32 in quiescence     

Mark T. Reynolds  Paul J. Callanan  Alexei V. Filippenko 《Monthly notices of the Royal Astronomical Society》2007,374(2):657-663

  相似文献