Luminescence enhancement by blending PVK with blue PPV copolymer

The PL and EL properties of the polymer blends of PVK and blue PPV copolymer were studied. Considerable enhancement of both the photoluminescent and the electroluminescent intensity were observed by using the polymer blends as emission layer in the LED devices. The energy transfer process and the formation of exciplex in the polymer blends were also discussed.

In-situ synthesis of terbium complex with salicylic acid in silica matrix by a two-step sol-gel process

A process for in situ synthesis of terbium complex with salicylic acid by a two-step sol-gel method in silica matrix has been proposed. The luminescence properties of the silica gels codoped with terbium and salicylic acid have also been discussed with respect to that of the gel doped with terbium and that of pure terbium complex with salicylic acid.

氢化物发生-分光光度法同时测定砷、锑和铋

建立了一个氢化物发生-分光光度法同时测定砷、锑、铋的新方法。在酒石酸介质中用KBH_4将 Bi(Ⅲ)、Sb(Ⅲ)、As(Ⅲ)转变成 BiH_3、SbH_3、AsH_3、再分别被乙醇、四氢呋喃、DMF混合溶液(吸收后再加入 HClO_4-DBC-CPA 溶液显色),铁-邻菲罗啉乙醇溶液和 AgNO_3、PVA、乙醇溶液分别吸收。有色溶液在640nm、510nm 和400nm 处有最大吸收。本法简便怏速,灵敏度高。检出限分别是 As 0.04μg/ml、Sb 0.09μg/ml、Bi 0.05μg/ml。用本法对铜、铜合金及沉积物中砷、锑,铋进行测定,结果令人满意。

Long-Wave Dynamics of Sea Level Variations during Indian Ocean Dipole Events

Long-wave dynamics of the interannual variations of the equatorial Indian Ocean circulation are studied using an ocean general circulation model forced by the assimilated surface winds and heat flux of the European Centre for Medium-Range Weather Forecasts. The simulation has reproduced the sea level anomalies of the Ocean Topography Experiment (TOPEX)/Poseidon altimeter observations well. The equatorial Kelvin and Rossby waves decomposed from the model simulation show that western boundary reflections provide important negative feedbacks to the evolution of the upwelling currents off the Java coast during Indian Ocean dipole (IOD) events. Two downwelling Kelvin wave pulses are generated at the western boundary during IOD events: the first is reflected from the equatorial Rossby waves and the second from the off-equatorial Rossby waves in the southern Indian Ocean. The upwelling in the eastern basin during the 1997-98 IOD event is weakened by the first Kelvin wave pulse and terminated by the second. In comparison, the upwelling during the 1994 IOD event is terminated by the first Kelvin wave pulse because the southeasterly winds off the Java coast are weak at the end of 1994. The atmospheric intraseasonal forcing, which plays an important role in inducing Java upwelling during the early stage of an IOD event, is found to play a minor role in terminating the upwelling off the Java coast because the intraseasonal winds are either weak or absent during the IOD mature phase. The equatorial wave analyses suggest that the upwelling off the Java coast during IOD events is terminated primarily by western boundary reflections.

南海北部湾现代沉积物中的生物标志化合物及其地质意义

用毛细管气相色谱、毛细管气相色谱-质谱联用系统对南海北部湾现代沉积物可抽提有机质中的生物标志化合物（简称生物标志物，下同）进行了分析。共鉴定了正烷烃（包括直链烯烃）、类异戊二烯烷烃、类葫萝卜烷、三环萜烷、五环三萜烷类（包括萜烯）、甾醇、脂肪酸等九大类生物标志物。其中类葫萝卜烷系列首次在中国海现代沉积物中被鉴定出。探讨了这些物生标志物（特别是萜类、甾类及其立体异构体）的分布特征及可能的意义。结果表明：北部湾现代沉积物中的生物标志物为非原地源（陆源和/或石油泄漏或污染）和原地（海洋）来源的混合物。具体为：I. 原地成因的：类葫卜烷系列。五环三萜类中的萜烯、ββ构型的藿烷、γ-蜡烷、蕨烷等。甾烯。C_(27)～C_(28)甾醇。大部分脂肪酸。II. 非原地成因的：大部分正烷烃。三环萜烷。五环三萜中的αβ、βα构型号的藿烷、奥利烷。甾烷。C_(29)甾醇（包括23，24-二甲基-5αβ-胆甾-22烯-3β-醇）。此外，还用这些生物标志物（特别是其立体化学）分布特征探讨了北总湾海区的沉积物来源、成岩作用、沉积环境等沉积学基本问题，结果证明生物标志物是解决这些问题的较好手段之一。

用Thornthwaite与Holdridge植被的PE指标对柴达木地区植被--气候关系的初步分析

我们以张新时用Thornthwaite植被的PE（可能蒸散）指标所作出的可能蒸散的多元回归模型和他对Holdridge的修正系统对柴达木地区的植被－气候关系初步分析，二者在柴达木地区植被一气候相关性规律较好，这两种方法基本上适用于柴达木地区的自然条件。二者相比较，只是用Thornthwaite的方法所估算的可能蒸散（PE）要比实际中的较小一些，Holdridge的方法相对比较精细一些。

天然气藏地震识别技术研究

The Research of Seismic Recognition Techniques for Gas Reservoir Shang Yong_sheng(Geophysics) Directed by Yang Chang-chun Abstract Gas reservior is one of the most important nature resources. Someone forecast that the output will exceed crude oil in 2015 and become the largest energy source. Recently,more and more gas reservior are discovered as the oil field and gas filed exploration go deep into development. Although the gas proved reserves rise greatly the explorative degree of natural gas resource in our country is still very low. The potential of gas exploration is very great and our task is so hard. How to recognise and discover new gas reservoir is the first task based on the great gas reservior resources foreground. the gas reservior in different oil and gas field have its special gas generation, reservoiring, physical property conditions. However,it may have the same geophysical characters. So,it is very important to analyse, research, summarizing the geophysical characters of the gas reservior and make use of the characters to identify the gas layer effectively. This paper start with modeling,and it discuss the geophysical characters of the gas reservior response. It analyse the seismical wave characters of the gas reservoir. Furthermore, it summarize the method of using the seismica profile to identify the gas reservior directly. The paper discuss the research of extracting diffraction wave for mass diffraction wave grow at the edge of the gas reservoir at the seismic section. Making use of the technique of extracting diffraction wave to identify the gas reservior is the first experiment of the gas reservoir prediction technique. The avo technology is a new geophysical method. From the pre-stack analysis, this paper discuss the technique of using the rich information to identify the gas reservoir. Based on the case study of the Qidam basin and the Hailaer basin it discuss the method of predicating gas reservoir using pre-stack information. It include pre-stack amplitude preserve process, AVO modeling, fluid replacement technique, AVO analysis and interpretation technique. The paper summarize a gas reservoir prediction procedure focusing on the pre-stack information. The seismic wave will cause great attenuation when it pass through the gas layer and the high frequency component loss. This paper discuss the technique of extracting seismic attributes to represent the attenuation degree of seismica wave. Based on the attenuation attributes,it does the research of the gas reservor identification and prediction. At last,the paper discuss the method of calculating the azimuthal anisotropy to predict the fracture reservoir. Keyword: gas reservoir, diffraction wave, AVO, attenuation attribute,fracture prediction