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    Phosphorus-nitrogen-based intumescent flame retardant and synthetic method and use thereof
    172.
    发明授权
    Phosphorus-nitrogen-based intumescent flame retardant and synthetic method and use thereof 有权

    公开(公告)号：US10301548B2

    公开(公告)日：2019-05-28

    申请号：US15032537

    申请日：2014-05-23

    Applicant: Institute of Advanced Technology, University of Science and Technology of China

    Inventor： Zhiyong Wang

    IPC: C09K21/12 ,  C09D7/63 ,  D21H17/07 ,  D21H17/00 ,  D06M13/282 ,  D21H17/10 ,  D21H17/28 ,  D21H17/25 ,  D21H21/34 ,  C09D5/18 ,  C08K5/00

    Abstract: This disclosure provides high-efficiency and low-energy-consumption synthetic methods of a series of phosphorus-nitrogen-based intumescent flame retardants and the use thereof in paint flame retarding. 1 part by weight of a phosphorization agent and 0.5-4.0 parts by weight of a nitrogen-containing foaming agent are uniformly mixed and stirred at room temperature, and an amount of water is further added to emit heat and initiate reaction. 0.5-3.0 parts by weight of a charring agent and 0.5-4.0 parts by weight of a hydroxy-containing polyfuctional crosslinking agent are then added, and reacted with stirring. An amine compound is finally added for neutralization until pH value is 5-8, and solid liquid separation is performed. The solid portion is dried to obtain a main body portion of a phosphorus-nitrogen-based intumescent flame retardant. The resultant filtrate is diluted with ⅓-⅔ volume of water, and a flame retardant product is obtained. This flame retardant product is mainly used in the flame retarding of paper and cotton fabrics. The main body and different proportions of other nitrogen-containing foaming agents and charring agents are uniformly mixed and pulverized into nano- and micro-scale, and a phosphorus-nitrogen-based intumescent flame retardant is obtained. The nano- and micro-scale phosphorus-nitrogen intumescent flame retardant is mixed into a paint at a weight ratio of 15-30%, to obtain a flame-retardant paint which is capable of maintaining mechanical and physical properties of the paint. The phosphorus-nitrogen-based intumescent flame retardant of this disclosure is an intumescent flame retardant having a synergistic effect of phosphorus and nitrogen.

    PREPARATION METHOD FOR WIDE-TEMPERATURE CATALYST USED FOR PREFERENTIAL OXIDATION OF CO IN A HYDROGEN-RICH ATMOSPHERE, AND PRODUCT AND APPLICATIONS
    173.
    发明申请
    PREPARATION METHOD FOR WIDE-TEMPERATURE CATALYST USED FOR PREFERENTIAL OXIDATION OF CO IN A HYDROGEN-RICH ATMOSPHERE, AND PRODUCT AND APPLICATIONS 审中-公开

    公开(公告)号：US20190105638A1

    公开(公告)日：2019-04-11

    申请号：US16089012

    申请日：2016-04-27

    Applicant: University of Science and Technology of China

    Inventor： Junling Lu ,  Lina Cao ,  Qi Yao ,  Si Chen ,  Huan Yan ,  Shiqiang Wei ,  Jinlong Yang

    IPC: B01J23/89 ,  B01J21/08 ,  B01J21/18 ,  B01J21/06 ,  B01J21/04 ,  B01J37/02 ,  C01B3/58

    Abstract: This invention provides a preparation method of a catalyst for preferential oxidization of CO in a hydrogen-enriched atmosphere, and a catalyst product obtained from the method and its applications thereof. Particularly, in this invention, a wide-temperature catalyst for preferential oxidization of CO in a hydrogen-enriched atmosphere is obtained by depositing one or more of an iron oxide, cobalt oxide, and nickel oxide as a promoter onto the surface of a supported Pt-group noble metal catalyst precursor via chemical vapor deposition or atomic layer deposition. In the wide-temperature catalyst, the active noble metal component has a content of 0.1 to 10 wt %, and the promoter has a content of 0.1 to 10 wt % in terms of the metal element thereof. In the reaction of preferential oxidation of CO in a hydrogen-enriched atmosphere, the catalyst prepared by this invention can exhibit excellent catalytic performance and can achieve high conversion of CO with high selectivity in a wide temperature range of −80 to 200° C., for example. Also, the catalyst can remain stable for a long time even in a case where steam and CO2 are present in the hydrogen-enriched atmosphere.

    Method for signal transmission to multiple user equipments utilizing reciprocity of wireless channel
    174.
    发明授权
    Method for signal transmission to multiple user equipments utilizing reciprocity of wireless channel 有权

    公开(公告)号：US10236958B2

    公开(公告)日：2019-03-19

    申请号：US16067085

    申请日：2016-03-21

    Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA

    Inventor： Wenyi Zhang ,  Cong Shen ,  Ning Liang

    IPC: H04L25/497 ,  H04B7/06 ,  H04B7/0413

    Abstract: The present disclosure provides a method for transmitting a signal to multiple User Equipments (UEs) utilizing reciprocity of a wireless channel. In this method, a vector channel from the base station to each UE can be converted into an equivalent Single Input Single Output (SISO) channel having a strong Light-of-Sight (LOS) component using channel feedback. In this way, a reliable signal transmission to multiple UEs can be achieved with little channel training overhead. The present disclosure has prominent advantages such as simplicity in implementation, low processing complexity and very low channel training overhead and is particularly applicable in low-speed transmission of broadcast signaling in a massive MIMO system and scenarios where the base station is to page inactive UEs.

    Magnetic transmission apparatus
    177.
    发明授权
    Magnetic transmission apparatus 有权

    公开(公告)号：US09985513B2

    公开(公告)日：2018-05-29

    申请号：US15032281

    申请日：2014-11-19

    Applicant: SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA

    Inventor： Linni Jian ,  Yujun Shi ,  Jin Wei

    IPC: H02K49/10

    CPC classification number: H02K49/102 ,  H02K49/10

    Abstract: A magnetic transmission apparatus is disclosed, wherein the magnetic transmission apparatus includes a still part (4), a first rotating shaft (81), a second rotating shaft (82), a first rotating part (1), a second rotating part (2), and a third rotating part (3); the first rotating part (1) is rigidly connected with the first rotating shaft (81); the second rotating part (2), the third rotating part (3) are fixed on the second rotating shaft (82); the first rotating part (1), the second rotating part (2), and the third rotating part (3) are successively distributed along an axial direction; the still part (4) includes a magnetic regulation seat (41) and a magnetic regulation ring (42); the second rotating part (2) is located inside the magnetic regulation ring (42); the first rotating part (1) includes a first iron core (11), a first permanent magnet (12), and a first support part (811); the second rotating part (2) includes a second iron core (21), and a second permanent magnet (22); the third rotating part (3) includes a third iron core (31), a third permanent magnet (32), and a second support part (821); the first iron core (11), the first permanent magnet (12), the magnetic regulation ring (42), the third permanent magnet (32) and the third iron core (31) are successively distributed along the axial direction. The first permanent magnet (12) and the third permanent magnet (32) are magnetized alternately and axially; the second permanent magnet (22) is magnetized alternately radially. The magnetic transmission apparatus has an axially and radially mixed magnetic circuit and can take full advantage of the magnetic modulation space and improve the torque density.

    RECEIVING METHOD AND SYSTEM FOR DIGITAL SIMULTANEOUS INFORMATION AND ENERGY TRANSFER
    178.
    发明申请
    RECEIVING METHOD AND SYSTEM FOR DIGITAL SIMULTANEOUS INFORMATION AND ENERGY TRANSFER 审中-公开

    公开(公告)号：US20180097670A1

    公开(公告)日：2018-04-05

    申请号：US15831961

    申请日：2017-12-05

    Applicant: South University of Science and Technology of China

    Inventor： Yi GONG ,  Zhi Quan ,  Zidong Han

    IPC: H04L27/26 ,  H04L27/32 ,  H02J50/80

    CPC classification number: H04L27/2601 ,  H02J50/20 ,  H02J50/80 ,  H04L27/2605 ,  H04L27/2647 ,  H04L27/32

    Abstract: A method is provided for digital Simultaneous Information and Energy Transfer (SIET), comprising the steps of receiving a serial SIET analog signal, and converting the serial SIET analog signal received into a parallel SIET analog signal, extracting an analog information signal and an analog energy signal from the parallel SIET analog signal, performing analog-to-digital conversion on the analog information signal to obtain a digital information signal, and performing information demodulation, parallel-to-serial conversion and decoding on the digital information signal in digital domain, and pre-processing the analog energy signal in analog domain and storing the preprocessed analog energy signal. As the information signal is processed in the digital domain and the energy signal is processed in the analog domain, the energy in the SIET signal can be full collected in receiving side.

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