会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Non-invasive inspection
    • 无创检查
    • US4983841A
    • 1991-01-08
    • US412337
    • 1989-09-26
    • Peter A. E. StewartRichard T. SkeltonMartin J. AllenJoseph Douglas
    • Peter A. E. StewartRichard T. SkeltonMartin J. AllenJoseph Douglas
    • G01V5/00G01N23/04G01T1/16G01T1/161G01T1/29
    • G01N23/046G01T1/2985G01N2223/419
    • Residual core material can be detected inside hollow cast articles using positron emission tomography. Positron radio-isotope material is inducted into any residual core material present by immersing a cast article in an aqueous solution of radio-isotope emitter, for example gallium. Absorbed gallium subsequently emits positrons which are annihilated in collisions with electrons emitting two 511 KeV gamma rays in diametrically opposite directions. The emissions are detected and tracked by a PET camera and the resulting images correlated with a sectioned image of the article as a check on the location of detected core material. Initially a low-dose-rate solution for the purpose of merely establishing the presence of core material is used but a second optional process step introduces a more active solution allowing a PET camera to collect sufficient data to image absorbed isotope.
    • 可以使用正电子发射断层扫描在中空铸造制品内部检测残留芯材。 通过将铸造物品浸入放射性同位素发射体(例如镓)的水溶液中,将正电子放射性同位素材料引入存在的任何残余芯材料中。 随后,吸收的镓随后发射正电子,这些正电子与沿两个方向相反的方向发射两个511KeV伽马射线的电子发生碰撞。 由PET照相机检测和跟踪排放物,并将所得到的图像与文章的分割图像相关联,作为对检测到的核心材料位置的检查。 最初仅使用建立核材料存在的低剂量率解决方案,但是第二可选工艺步骤引入了更为有效的解决方案,允许PET相机收集足够的数据来成像吸收的同位素。
    • 3. 发明授权
    • Protein engineering of glucoamylase to increase pH optimum, substrate specificity and thermostability
    • 葡糖淀粉酶的蛋白质工程,以提高pH最佳,底物特异性和热稳定性
    • US06537792B1
    • 2003-03-25
    • US09236063
    • 1999-01-22
    • Martin J. AllenTsuei-Yun FangYuxing LiHsuan-Liang LiuHsiu-Mei ChenPedro CoutinhoRichard HonzatkoClark Ford
    • Martin J. AllenTsuei-Yun FangYuxing LiHsuan-Liang LiuHsiu-Mei ChenPedro CoutinhoRichard HonzatkoClark Ford
    • C12N924
    • C12N9/2428
    • A fungal glucoamylase including a mutation pair Asn20Cys coupled with Ala27Cys forming a disulfide bond between the two members of the pair. The mutation provides increased thermal stability and reduced isomaltose formation to the enzyme. A fungal glucoamylase including a 311-314Loop mutation wherein reduced isomaltose formation is provided by the mutation is also provided. A fungal glucoamylase including a mutation Ser411Ala wherein increased pH optimum and reduced isomaltose formation is provided by the mutation is also provided. Combinations of the mutations in engineered glucoamylases are also provided as are combinations with other glucoamylase mutations that provide increased thermal stability, increased pH optimum and reduced isomaltose froamtion for cumulative improvements in the engineered glucoamylases. Also provided is a fungal glucoamylase including a mutation of Ser30Pro coupled with at least two stabilizing mutations forming a disulfide bond between the two stabilizing members. A fungal glucoamylase including a Ser30Pro/Gly137Ala/311-314 Loop is provided. A fungal glucoamylase including a mutation Ser30Pro/Glu137Ala/Ser411Ala is also provided.
    • 一种真菌葡糖淀粉酶,其包括与成对的两个成员之间形成二硫键的Ala27Cys偶联的突变对Asn20Cys。 该突变提供了增加的热稳定性和减少异黄酮对酶的形成。 还提供了包含311-314Loop突变的真菌葡糖淀粉酶,其中通过突变提供了减少的异麦芽糖形成。 还提供了包括突变Ser411Ala的真菌葡糖淀粉酶,其中通过突变提供了增加的pH最佳和降低的异麦芽糖形成。 还提供了工程化葡糖淀粉酶突变的组合,与其它葡糖淀粉酶突变的组合一起提供,其提供增加的热稳定性,增加的pH最佳值和降低的异麦芽糖减少,用于工程化葡糖淀粉酶的累积改进。 还提供了真菌葡糖淀粉酶,其包括Ser30Pro突变与至少两个在两个稳定化合物之间形成二硫键的稳定突变。 提供了包含Ser30Pro / Gly137Ala / 311-314环的真菌葡糖淀粉酶。 还提供了包含突变Ser30Pro / Glu137Ala / Ser411Ala的真菌葡糖淀粉酶。