5，6-二羟基-2-（4-羟苯基）-4-酮-4H-1-苯并吡喃基-7-羟基-β-D-葡萄糖醛酸在制药中的应用

本发明提供化合物5，6-二羟基-2-(4-羟苯基)-4-酮-4H-1-苯并吡喃基-7-羟基-β-D-葡萄糖醛酸在制备抗艾滋病药物中和在制备逆转录酶抑制剂药物中的应用。

肉、奶牛B超活体取卵方法

本发明涉及一种肉、奶牛B超活体取卵方法，属生物技术领域。本方法的吸卵真空泵的压力为50-90mmHg，吸卵液为含0.5-1％,青-链霉素和5-10IU肝素的磷酸缓冲液，洗卵液为含5-12％,BCS的磷酸缓冲液和改良的基础培养液-Hepes液；采卵频率为1次/4天/头；穿刺对象为所有直径≥2mm的卵泡；取1-3级的卵母细胞分装、备用；对7-8岁的供体经产牛按程序注射等量的外源性FSH，总量为30-55μg；对≥14岁的老年牛按程序肌肉注射总量为150-200μg的外源性FSH，以提高卵母细胞发育潜能。本发明的优点在于，从活体可重复、无损伤获取卵母细胞；≥2mm直径卵泡作为穿刺对象和每4天1次的取卵频率保证了卵母细胞的质量和发育同步性；用外源性FSH诱导可提高卵母细胞的发育潜能；本方法的取卵效果佳。

Village level processing techniques

The agar-bearing seaweeds Gracilaria and Gelidium grow abundantly in the Asia-Pacific region. Production and post-harvest techniques and methods for processing Gracilaria to produce agar suitable for local market is necessary to increase the meager income of coastal dwellers. A flow diagram of a village level agar production is provided. A guide is also given for the quality of dried seaweeds, which are divided into 3 classes.

天然水体中痕量微囊藻毒素的高效液相色谱测定方法优化

以微囊藻毒素LR(MC-LR)和微囊藻毒素RR(MC-RR)为材料,主要通过调节杂质淋洗液和毒素洗脱液中甲醇、水和三氟乙酸(TFA)的配比来改变极性和PH值,对高效液相色谱(HPLC)法分析MC环境样品的方法进行了优化。结果表明,含0.1%TFA的40%~45%的甲醇水溶液可以取得较好的杂质淋洗效果;含0.1%TFA的70%的甲醇水溶液可以将固相萃取柱(SPE)上的MC完全洗下。因此,建议在分析杂质较多的环境样品时,使用含0.1%TFA的40%~45%的甲醇水溶液对杂质进行淋洗,然后用含0.1%TFA的7

Role of Bi3+ ions for Er3+ ions efficient 1.54 mu m light emission in Er/Bi codoped SiO2 thin film prepared by sol-gel method

Er/Bi codoped SiO2 thin films were prepared by sol-gel method and spin-on technology with subsequent annealing process. The bismuth silicate crystal phase appeared at low annealing temperature while vanished as annealing temperature exceeded 1000 degrees C, characterized by X-ray diffraction, and Rutherford backscattering measurements well explained the structure change of the films, which was due to the decrease of bismuth concentration. Fine structures of the Er3+-related 1.54 mu m light emission (line width less than 7 nm) at room temperature was observed by photoluminescence (PL) measurement. The PL intensity at 1.54 gm reached maximum at 800 degrees C and decreased dramatically at 1000 degrees C. The PL dependent annealing temperature was studied and suggested a clear link with bismuth silicate phase. Excitation spectrum measurements further reveal the role of Bi3+ ions for Er3+ ions near infrared light emission. Through sol-gel method and thermal treatment, Bi3+ ions can provide a perfect environment for Er3+ ion light emission by forming Er-Bi-Si-O complex. Furthermore, energy transfer from Bi3+ ions to Er3+ ions is evidenced and found to be a more efficient way for Er3+ ions near infrared emission. This makes the Bi3+ ions doped material a promising application for future erbium-doped waveguide amplifier and infrared LED

约束求解与优化技术的结合

提出了将混合约束问题转化为混合整数规划问题的方法.用约束求解方法及混合整数规划方法共同求解混合约束问题可以令二者相互借鉴,从而促进二者求解技术的进一步发展.同时,由混合约束问题转化而来的混合整数规划问题也可作为求解混合整数规划问题的测试问题（benchmarks）.

基于工作流的J2EE遗留系统改造

为了满足用户对软件系统内部业务过程定义的定制需求,针对流行的J2EE平台,以工作流技术为基础设计了对遗留软件系统的改造平台JSPMP。JSPMP利用工作流引擎的过程定义与任务管理能力驱动系统业务流程执行,赋予软件系统在业务过程定义方面的动态可定制性。实践证明,开发者利用此方案能够迅速改造遗留系统,满足用户多样化的过程定制需求,极大地降低了改造、定制成本。

南海名浅考

根据历史文献分析，已知南海海名最早出现于周宣王（827BC--782BC在位）时的《江汉》诗中。秦汉之间214