摘要:
Disclosed herein are compounds, extracts, and active fractions of the plant Geum japonicum alone or in combination with Centella Asiatica and methods for preventing or treating heart failure. The compounds provided herein can be formulated into pharmaceutical compositions and medicaments that are useful in the disclosed methods. Also provided are the use of the compounds and extracts in preparing pharmaceutical formulations and medicaments.
摘要:
An identification method for a valuable file and an identification device thereof. The method includes the following steps: (1) acquiring an original infrared image, type, denomination and orientation data of a current valuable file; (2) obtaining size data and infrared characteristic data of a corresponding standard valuable file; (3) applying an image projection conversion technology, and correcting the original infrared image to form a second infrared image matched with the size of the standard valuable file; (4) obtaining the infrared characteristic data of the current valuable file from the second infrared image and comparing same with that of the standard valuable file to identify whether the current valuable file is true or false; and (5) outputting the identification result. This method and device correct the original infrared image, reducing the quality acquisition requirements thereof, and can collect an image directly using a camera on a simply equipped mobile device, improving identification accuracy.
摘要:
Disclosed are a caspofungin analog, and a preparation method and applications thereof. The caspofungin analog has a structure as represented in Formula 3.
摘要:
Disclosed herein is a method for isolating active regions in a germanium-based MOS device. A surface of a germanium-based substrate is covered by a thin polysilicon layer or a poly-SiGe layer, and an isolation structure of germanium dioxide covered by a silicon dioxide layer or a SiGe oxide layer on top is formed by means of two steps of oxidation in a case of the active regions are protected. Such two steps of oxidation using the polysilicon layer or the poly-SiGe layer as a sacrificial layer is advantageous to improve the isolation quality of a fabricated germanium dioxide and to reduce a beak effect occurred during a local field oxygen oxidation so as to dramatically elevate the performance of the germanium device.
摘要:
Disclosed is a preparation method for caspofungin, comprising the steps: (a) a compound as represented in Formula 2 and a strong leaving group 5 are mixed to obtain a compound as represented in Formula 3; (b) the compound as represented in Formula 3 and ethylenediamine are mixed to obtain a compound as represented in Formula 4; and, (c) the compound as represented in Formula 4 is mixed with a hydroxyl protection agent, and then a borane complex is mixed in to obtain a compound as represented in Formula 1.
摘要:
Compounds and methods are provided for enhancing or boosting the transfection rate or efficiency of mammalian cells by foreign DNA, such as bacterial plasmid DNA. Compounds, including natural products and inventive synthetic compounds can increase the effectiveness of uptake and incorporation of foreign DNA by mammalian cells, such as human cells, by suppression of DNA cytosine deamination, which is believed to be a mechanism by which these cells eliminate foreign DNA. Inhibition of the cytosine deaminase enzymes by compounds as described herein serves to provide more effective transfection of eukaryotic cells by plasmids including engineered gene sequences. Transfection can be used to study cellular processes, or to cure genetic diseases in human patients. The inventive materials and methods increase the efficiency and effectiveness of such transfection techniques.
摘要:
An identification method for a valuable file and an identification device thereof. The method includes the following steps: (1) acquiring an original infrared image, type, denomination and orientation data of a current valuable file; (2) obtaining size data and infrared characteristic data of a corresponding standard valuable file; (3) applying an image projection conversion technology, and correcting the original infrared image to form a second infrared image matched with the size of the standard valuable file; (4) obtaining the infrared characteristic data of the current valuable file from the second infrared image and comparing same with that of the standard valuable file to identify whether the current valuable file is true or false; and (5) outputting the identification result. This method and device correct the original infrared image, reducing the quality acquisition requirements thereof, and can collect an image directly using a camera on a simply equipped mobile device, improving identification accuracy.
摘要:
Provided are isolated polypeptides having glucoamylase activity, catalytic domains, and polynucleotides encoding the polypeptides, catalytic domains. Also provided are nucleic acid constructs, vectors and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides, catalytic domains.
摘要:
Systems and methods for performing data anomaly detection and/or removal are usable to accurately assess baseline power consumption. According to one embodiment of the invention, a system can be provided. The system can be operable to receive energy consumption data of a location; select, based at least in part on a collection period of the energy consumption data, an algorithm for detecting anomalies in the energy consumption data; perform the algorithm on the energy consumption data to detect the anomalies in the energy consumption data; and determine an energy consumption baseline for the location based at least in part on a result of the algorithm.
摘要:
Disclosed herein is an interface treatment method for germanium-based device, which belongs to the field of manufacturing technologies of ultra large scaled integrated (ULSI) circuits. In the method, the natural oxide layer on ther surface of the germanium-based substrate is removed by using a concentrated hydrochloric acid solution having a mass percentage concentration of 15%˜36%, and dangling bonds of the surface are performed a passivation treatment by using a diluted hydrochloric acid solution having a mass percentage concentration of 5%˜10% so as to form a stable passivation layer on the surface. This method makes a good foundation for depositing a high-K (high dielectric constant) gate dielectric on the surface of the germanium-based substrate after cleaning and passivating, enhances quality of the interface between the gate dielectric and the substrate, and improves the electrical performance of germanium-based MOS device.