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    • 31. 发明申请
    • Low molecular weight chitosan oligosaccharides and its preparation method
    • 低分子量壳聚糖寡糖及其制备方法
    • US20070089978A1
    • 2007-04-26
    • US10560296
    • 2003-10-08
    • Pengcheng LiRonge XingSong LiuHuahua Yu
    • Pengcheng LiRonge XingSong LiuHuahua Yu
    • C08B37/08
    • C08B37/003
    • The present invention relates to low molecular weight chitosan oligosaccharides and its preparation method. Chitosan oligosaccharides were obtained under microwave irradiation assisted the electrolyte. The method of preparing chitosan oligosaccharides was described as follows: acid solvent containing electrolyte was added to chitosan. The reaction was performed at 480˜800 W for 3˜12 min. After irradiation ceased, the reaction liquid was cooled to room temperature. Then the solution was adjusted to neutrality with 1˜10 M NaOH or KOH and obtained the pale yellow floc. The processes of precipitation, filtering, desiccation and crushing are settled sequentially. Finally, chitosan oligosaccharides were obtained. Method of the present invention makes chitosan degrade to water-soluble chitosan oligosaccharides and it makes some inert substance become active. The method of the present invention can cut down energy consumption, decrease pollution and save time and raw materials. It has applying perspective of industry and potentiality of extensive market.
    • 本发明涉及低分子量壳聚糖寡糖及其制备方法。 在微波照射辅助电解质下获得壳聚糖寡糖。 制备壳聚糖寡糖的方法描述如下:将含酸性溶剂的电解质加入到壳聚糖中。 反应在480〜800W进行3〜12分钟。 照射停止后,将反应液冷却至室温。 然后将溶液用1〜10M NaOH或KOH调节至中性,得到淡黄色絮状物。 沉淀,过滤,干燥和粉碎的过程顺序进行。 最后得到壳聚糖寡糖。 本发明的方法使壳聚糖降解为水溶性壳聚糖寡糖,并使一些惰性物质变得活性。 本发明的方法可以降低能耗,减少污染,节省时间和原材料。 它具有广泛市场的行业和潜力的应用视角。
    • 36. 发明授权
    • File storage system based on coordinated exhaustible and non-exhaustible storage
    • 文件存储系统基于协调的可耗尽和不可耗尽的存储
    • US08903876B2
    • 2014-12-02
    • US13585967
    • 2012-08-15
    • Amir Meir MichaelSong LiuJason Matthew TaylorYael MaguirePer BrashersEitan Frachtenberg
    • Amir Meir MichaelSong LiuJason Matthew TaylorYael MaguirePer BrashersEitan Frachtenberg
    • G06F17/30
    • G06F17/30168G06F17/30194G06F17/30221
    • A file storage system is implemented by coordinating non-exhaustible and exhaustible storage devices. The exhaustible storage devices include lower grade flash based storage devices. The non-exhaustible storage devices are based on magnetic recording mechanisms or higher grade flash storage. The file storage system stores received content items on the exhaustible storage devices, and stores metadata for the content items and/or the file storage system on the non-exhaustible storage devices. During operation, the file storage system globally optimizes the content items on the exhaustible storage devices such that more heavily accessed items are moved to exhaustible storage devices that have experienced relatively few data operations. The file storage system moves less frequently accessed content items to exhaustible storage devices that have experienced a relatively large number of data operations. As such, the operation lifetime of the exhaustible storage devices as a whole can be prolonged.
    • 文件存储系统通过协调不可耗尽和可耗尽的存储设备来实现。 可耗尽的存储设备包括较低级别的闪存存储设备。 不可耗尽的存储设备基于磁记录机构或更高等级的闪存存储。 文件存储系统将可接收的内容项目存储在可耗尽的存储装置上,并将用于内容项目和/或文件存储系统的元数据存储在不可耗尽的存储装置上。 在操作期间,文件存储系统全局地优化可耗尽存储设备上的内容项目,使得更多访问的项目被移动到经历相对较少的数据操作的可耗尽的存储设备。 文件存储系统将经常访问的内容项目移动到经历了相对大量数据操作的可耗尽的存储设备。 因此,可以延长整个可消耗的存储装置的操作寿命。