Chinese Academy of Sciences

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Patent
Chinese Academy of Sciences and Dongguan Eontec Co. | Date: 2017-01-11

Provided are a Zr-Cu-Ni-Al-Ag-Y bulk amorphous alloy, and a preparation method and an application thereof. The ingredients of the alloy are: 41%-63% of Zr, 18%-46% of Cu, 1.5%-12.5% of Ni, 4%-15% of Al, 0.01 %-5% of Ag and 0.01 %-5% of Y, by atomic percentage. The amorphous alloy is prepared by using a copper mold casting method and can be used as part of an antibacterial material required in many fields.


Patent
Chinese Academy of Sciences | Date: 2017-01-04

An embodiment of the present disclosure provide a key protection method, via setting that each core of the multi-core process may have one symmetric master key, dynamically obtaining the plaintext private key of the asymmetric algorithm via a decryption operation and using the Intel TSX, it may be ensured that the private key and the intermediate variables used in the computation process may be stored in the cache occupied by the operation core only in terms of the hardware level, which may prevent the attackers from stealing the private key from the physical memory and ensure the security of the implementation of the public-key cryptographic algorithm in the computer system. Further, even the OS may be compromised and the attacker may directly read the memory storing the key, since the Intel TSX mechanism may ensure the atomicity of the memory operation, the attacker cannot obtain the plaintext private key. Further, in this scheme, while the physical attacks and system intrusions are resisted, the other cores of the multi-core processor may perform the cryptographic operation, which may enhance the operation efficiency.


An aflatoxin nanobody immunoabsorbent and immunoaffinity column and preparation method and use thereof. The immunoabsorbent comprises a solid phase carrier and aflatoxin B1 nanobody 2014AFB-G15 coupled with the solid phase carrier. The 50% inhibiting concentration IC_(50) of aflatoxin B1 nanobody 2014AFB-G15 to aflatoxin B1 is 0.66 ng/mL, and the cross-reactivity of aflatoxin B1 nanobody 2014AFB-G15 to aflatoxins B2, G1, G2, and M1 are respectively 22.6%, 10.95%, 32.1% and 26%. The amino acid sequence of aflatoxin B1 nanobody 2014AFB-G15 is as depicted by SEQ ID NO: 7, and the coding gene sequence thereof is as depicted by SEQ ID NO: 8. The aflatoxin nanobody immunoaffinity column can be used for purification and concentration of sample extract prior to computer testing, and the immunoaffinity column can be reused repeatedly.


Patent
Chinese Academy of Sciences | Date: 2017-02-01

The invention discloses a cell culture and experiment device used in the field of biological and genetic engineering experiment apparatus, comprising a central distribution compartment, a culture compartment, a treatment compartment, and pipelines for delivering liquid between the central distribution compartment and the culture compartment and between the central distribution compartment and the treatment compartment. The central distribution compartment is equipped with a distribution chamber and a piston which can be moved forward and backward in the distribution chamber to alter the working volume of the distribution chamber. At the bottom of the distribution chamber, the central distribution compartment is equipped with a distribution valve controlling the connectivity between the distribution chamber and any of the channels. The invention provides a miniaturized apparatus integrating the central distribution compartment, the culture compartment and the treatment compartment, which can replace manual operations, save time and labor, and avoid wasting experimental raw material.


Patent
Chinese Academy of Sciences and A+ Network | Date: 2017-04-05

The present invention provides a system and a method for maintaining a connection channel in a multi-device interworking service. The system comprises: a multi-screen channel control client module and a multi-screen channel control server module. The multi-screen channel control client module is located on each terminal device, and used for acquiring an identifier of the device terminal and reporting a binding relationship between the terminal and a multi-screen channel to the multi-screen channel control server. The multi-screen channel control server module is used for recording the binding relationship between the terminal and the multi-screen channel, and pushing services to the bound terminal side. The multi-screen channel control server module is located on a server that provides a data service. The present invention has the advantages that the binding relationship maintenance and UI synchronization can be implemented on a newly added Websocket layer without affecting an original service, and stable service upgrade is achieved; and during the implementation of a Websocket channel on a client, multiplexing of the Websocket channel between pages is implemented in a nested iframe mode, thereby reducing the channel maintenance complexity.


Patent
Chinese Academy of Sciences | Date: 2017-01-11

The present invention provides a named data networking-based content delivery system and method. The system comprises a named data networking and a content delivery network, and the system further comprises a joint processing gateway. The named data networking is used for providing data content to a node in the content delivery network or sending a content request command to the content delivery network. The named data networking is a network formed by devices supporting a named data networking protocol. The content delivery network is used for providing data content to a node in the named data networking network or sending a content request command to the named data networking network. The content delivery network is a content delivery network set up over an IP network. The joint processing gateway is used for converting content data and transmitting the converted data from the named data networking to the content delivery network; and used for converting content data and transmitting the converted content data from the content delivery network to the named data networking.


Patent
Chinese Academy of Sciences, A+ Network and Beijing Hili Technology Co. | Date: 2017-01-11

The present invention provides a system and method for providing an on-site service, said system containing a plurality of nodes, each node containing: a neighborhood node set generation module, used for generating a neighborhood node set on the basis of the bidirectional link bandwidth between a local node and a neighboring node; a neighborhood information index table generation module, used for generating a neighborhood information index table of the local node; a candidate service point selection module, used for selecting according to a selection function a candidate service node from the set of neighboring nodes; the definition of said selection function being: for a current service request, computing the difference between the QoS of the neighboring node i executing the service request and the QoS of the local node executing the service request; if the computed difference is smaller than a set threshold, the neighboring node i serving as the candidate service node; a service scheduling module, used for receiving status information and feedback information provided in real time by the candidate service node, and selecting, on the basis of this information, a candidate node or the local node to serve as the service-executing node.


Patent
Chinese Academy of Sciences | Date: 2017-02-01

Disclosed is aflatoxin B1 nanobody 2014AFB-G15. An amino acid sequence thereof is shown in SEQ ID NO: 7, and a gene coding sequence thereof is shown in SEQ ID NO: 8. Aflatoxin B1 nanobody 2014AFB-G15 obtained in the present disclosure has the properties of resistance to organic reagents, resistance to high temperature, and good stability. 50% inhibitory concentration IC_(50) of aflatoxin B1 nanobody 2014AFB-G15 against aflatoxin B1 is 0.66 ng/mL, and cross-reaction rates thereof with aflatoxin B2, aflatoxin G1, aflatoxin G2, and aflatoxin M1 are 22.6%, 0.95%, 32.1%, and 26%, respectively.


Patent
Chinese Academy of Sciences | Date: 2017-03-01

The present invention provides a precision actuating device for achieving precision actuation in at least two directions, including: a first moving component having an installation space formed therein, wherein the first moving component has an upper surface and an inner side face, the installation space is recessed from the upper surface towards the interior of the first moving component and is open towards the upper surface, and the periphery of the installation space is defined by the inner side face; a first precision driving mechanism in transmission connection with the first moving component, wherein the first precision driving mechanism is used for driving the first moving component to move along a first direction; and a second moving component and a second precision driving mechanism, which are arranged and held within the installation space so as to be able to move along the first direction together with the first moving component, wherein the second precision driving mechanism is in transmission connection with the second moving component and is used for driving the second moving component to move in the installation space along a second direction that is different from the first direction. The structural design of the precision actuating device of the present invention is compact, and the precision actuating device is small in occupation area and large in movement range.


Patent
Chinese Academy of Sciences and A+ Network | Date: 2017-03-15

The present invention relates to a method, a device and a system for processing media resource information. The method comprises: a server acquires media resource information and user viewing information, the media resource information comprising media features, and the user viewing information comprising user features; the server ranks the media resource information according to the media features and the user features, so as to generate a first sequence; the server schedules the first sequence into time periods of idle channels according to preset priority of channels and time periods so as to generate a program list, and sends the program list to a client; the server receives an update request sent by the client, the update request comprising time baseline changes; and the server updates the program list according to the time baseline changes.

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