公开(公告)号：US09728310B2

公开(公告)日：2017-08-08

申请号：US15133042

申请日：2016-04-19

Applicant: BEIJING UNIVERSITY OF TECHNOLOGY ,  ANHUI EARTH-PANDA ADVANCE MAGNETIC MATERIAL CO., LTD.

Inventor： Ming Yue ,  Weiqiang Liu ,  Xiantao Li ,  Meng Li ,  Min Liu ,  Dongtao Zhang ,  Xiaowen Yin ,  Xiulian Huang ,  Jingwu Chen ,  Xiaofei Yi

IPC: H01F1/053 ,  C22C38/60 ,  C22C38/16 ,  C22C38/14 ,  C22C38/12 ,  C22C38/10 ,  C22C38/06 ,  C22C38/00 ,  C22C33/02 ,  B22F1/00 ,  B22F3/087 ,  B22F3/10 ,  B22F3/16 ,  B22F5/00 ,  B22F9/04 ,  B22F9/30 ,  C21B15/00 ,  H01F41/02

CPC classification number: H01F1/0536 ,  B22F1/0003 ,  B22F3/087 ,  B22F3/10 ,  B22F3/16 ,  B22F5/00 ,  B22F9/04 ,  B22F9/30 ,  B22F2301/355 ,  B22F2303/01 ,  B22F2303/15 ,  B22F2303/45 ,  B22F2304/10 ,  B22F2998/10 ,  C21B15/00 ,  C22C33/0235 ,  C22C33/0264 ,  C22C33/0278 ,  C22C38/002 ,  C22C38/005 ,  C22C38/008 ,  C22C38/06 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/60 ,  H01F1/0577 ,  H01F41/0266 ,  H01F41/0273 ,  B22F9/20 ,  B22F3/1017

Abstract: The present invention discloses a short process preparation technology of sintered NdFeB magnets from the NdFeB sludge, which relates to a field of recycle technology of NdFeB sludge. The present invention comprises the following steps: water bath distillation of organics in sludge, ultrasonic cleaning, calcium reduction and diffusion, ultrasonic rinsing in a magnetic field and drying, powders mixing and sintering. NdFeB sludge as raw materials was directly prepared from recycled sintered magnets with high magnetic properties. Most of the organics in the sludge could be removed by a vacuum distillation process with stepwise heating. The ultrasonic rinsing process in a magnetic field could effectively remove the remaining organics. The recycled sintered magnets exhibited good maximum energy product [(BH)max] of 35.26 MGOe. The present invention has important features, such as the short processing time, efficient environmental protection, high recycling rate and effective utilization rate of rare earth metals.

公开(公告)号：US20170216877A1

公开(公告)日：2017-08-03

申请号：US15488475

申请日：2017-04-15

Applicant: Beijing University of Technology

Inventor： Yin-zhou Yan ,  Yong Zeng ,  Yan Zhao ,  Ling-fei Ji ,  Yi-jian Jiang

IPC: B05D5/06 ,  C09D1/00 ,  C09D125/06 ,  C09K11/54

CPC classification number: C09D125/06 ,  C09D1/00 ,  C09K11/025 ,  C09K11/54 ,  Y10T428/25 ,  Y10T428/254 ,  Y10T428/259

Abstract: A sandwich structure for enhancement of photoluminescence (PL) from luminescent films and the corresponding preparation method are disclosed. The sandwich structure comprises a support, a luminescent film grown on the support, and a single-layer close-packed microsphere array deposited onto the luminescent film. The microspheres have high transmittance excitation light and emitted light, respectively. The low price of dielectric microspheres is beneficial to industrial applications. The stable chemical properties of dielectric microspheres make PL enhanced in a long term. Both metal and non-metal materials can be used as the support in the sandwich structure. These features significantly improve the technique of PL enhancement for luminescent films.

公开(公告)号：US20170185892A1

公开(公告)日：2017-06-29

申请号：US15186260

申请日：2016-06-17

Applicant: Beijing University of Technology

Inventor： Honggui Han ,  Yanan Guo ,  Junfei Qiao

IPC: G06N3/08 ,  G05B19/406

CPC classification number: G05B19/406 ,  G06N3/0445 ,  G06N3/082 ,  Y02P80/114

Abstract: Under conventional techniques, wastewater treatment has many problems such as poor production conditions, serious random interference, strong nonlinear behavior, large time-varying, and serious lagging. These problem cause difficult detection of various wastewater treatment parameter such as biochemical oxygen demand (BOD) values that are used to monitor water quality. To solve problems associated with monitoring BOD values in real-time, the present disclosure utilizes a self-organizing recurrent RBF neural network designed for intelligent detecting of BOD values. Implementations of the present disclosure build a computing model of BOD values based on the self-organizing recurrent RBF neural network to achieve real-time and more accurate detection of the BOD values (e.g., a BOD concentration). The implementations herein quickly and accurately obtain BOD concentrations and improve the quality and efficiency of wastewater treatment.

公开(公告)号：US20170148193A1

公开(公告)日：2017-05-25

申请号：US15108394

申请日：2015-07-21

Applicant: Beijing University of Technology

Inventor： Jinchao Feng ,  Kebin Jia ,  Huijun Wei

IPC: G06T11/00 ,  G06T15/50 ,  A61B5/00

CPC classification number: G06T11/005 ,  A61B5/0071 ,  A61B5/0073 ,  A61B5/7225 ,  A61B5/7267 ,  A61B2503/40 ,  A61B2576/00 ,  G06T15/506 ,  G06T2210/41

Abstract: Implementations of the present disclosure relate to methods for reconstruction for bioluminescence tomography based on a method of multitask Bayesian compressed sensing in the field of medical image processing. The method includes the following operations. Firstly the high order approximation model is used to model the law of light propagation in biological tissues, then the inner-correlation among multispectral measurements is researched based on multitask learning method and incorporated into a reconstruction algorithm of bioluminescence tomography as prior information to reduce ill-posedness of BLT reconstruction, and then on this basis, three-dimensional reconstruction of bioluminescent source is realized. Compared with other reconstruction algorithms for BLT, the correlation among multispectral measurements is incorporated into the disclosure and the ill-posedness of BLT reconstruction is reduced. The bioluminescent source can be reconstructed and located accurately using the proposed algorithm, and computational efficiency can be greatly improved.

公开(公告)号：US09646796B1

公开(公告)日：2017-05-09

申请号：US14218680

申请日：2014-03-18

Applicant: BEIJING UNIVERSITY OF TECHNOLOGY

Inventor： Jin-Shu Wang ,  Wei Liu ,  Li-Ran Dong ,  Qiang Wang ,  Xiang Liu ,  Fan Zhou ,  Mei-Ling Zhou ,  Tie-Yong Zuo

IPC: H01J19/06 ,  H01K1/04 ,  H01J1/14 ,  H01J1/28 ,  H01J1/142 ,  H01J1/20 ,  H01J9/04

CPC classification number: H01J1/28 ,  H01J1/14 ,  H01J1/142 ,  H01J1/20 ,  H01J9/042

Abstract: A method of manufacturing carburized Lu2O3 doped Mo cathodes for thermionic emission for magnetrons is described. The Lu2O3 doped Mo powder is prepared by sol-gel method. The powder is reduced thoroughly in hydrogen atmosphere. Afterwards, the powder is die-pressed into pellets, followed by sintering in hydrogen and carburization in activated carbon powder to obtain the carburized Lu2O3 doped Mo cathode.

公开(公告)号：US09633307B2

公开(公告)日：2017-04-25

申请号：US14668836

申请日：2015-03-25

Applicant: BEIJING UNIVERSITY OF TECHNOLOGY

Inventor： Junfei Qiao ,  Ying Hou ,  Honggui Han ,  Wenjing Li

IPC: G06N3/08 ,  G01N33/18 ,  G06N3/04 ,  C02F3/00 ,  C02F101/16

CPC classification number: G06N3/088 ,  C02F3/006 ,  C02F2101/16 ,  C02F2209/001 ,  C02F2209/006 ,  C02F2209/04 ,  C02F2209/10 ,  C02F2209/14 ,  C02F2209/18 ,  C02F2209/22 ,  C02F2209/40 ,  G01N33/18 ,  G01N33/188 ,  G06N3/0445

Abstract: An intelligent method is designed for predicting the effluent ammonia-nitrogen concentration in the urban wastewater treatment process (WWTP). The technology of this invention is part of advanced manufacturing technology, belongs to both the field of control engineering and environment engineering. In order to improve the predicting efficiency, a recurrent self-organizing neural network, which can adjust the structure and parameters concurrently to train the parameters, is developed to design this intelligent method. This intelligent method can predict the effluent ammonia-nitrogen concentration with acceptable accuracy and solve the problem that the effluent ammonia-nitrogen concentration is difficult to be measured online. Moreover, the online information of effluent ammonia-nitrogen concentration, predicted by this intelligent method, can enhance the quality monitoring level and alleviate the current situation of wastewater to strengthen the whole management of WWTP.

公开(公告)号：US09609361B2

公开(公告)日：2017-03-28

申请号：US14889559

申请日：2014-12-06

Applicant: Beijing University of Technology

Inventor： Kebin Jia ,  Huan Dou

IPC: H04N19/597 ,  H04N19/147 ,  H04N19/186 ,  H04N19/176 ,  H04N19/182 ,  H04N19/159 ,  H04N19/14

CPC classification number: H04N19/597 ,  H04N19/14 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186

Abstract: The present disclosure relates to the technical field of video coding. Implementations herein provide methods for fast 3D video coding for high efficiency video coding HEVC. The methods speed up the view synthesis process during the rate distortion optimization for depth coding based on texture flatness. The implementations include extracting coding information from textures, analyzing luminance regularity among pixels from flat texture regions based on statistical method, judging the flat texture regions using the luminance regularity for depth maps and terminating the flat texture block's view synthesis process when processing rate distortion optimization. Compared to original pixel-by-pixel rendering methods, the implementations reduce coding time without causing significant performance loss.

公开(公告)号：US20170076824A1

公开(公告)日：2017-03-16

申请号：US15122761

申请日：2015-01-19

Applicant: Beijing University of Technology

Inventor： Bo Wang ,  Dezhi Hu ,  Dong Ma ,  Guanghong LV

IPC: G21B1/13

CPC classification number: G21B1/13 ,  G21Y2002/101 ,  G21Y2002/102 ,  Y02E30/128

Abstract: A method for improving resistance of a fusion reactor inner wall to plasma irradiation by using lamination structure comprises: making a material for facing plasma into multiple metal sheets, laminating the multiple metal sheets together according to a direction perpendicular to a wall surface, and combining the laminated multiple metal sheets with a copper substrate. The method relates to the field of nuclear applications, and is applicable to a plasma-facing surface on an inner wall of an apparatus for conducting a fusion reaction by using hydrogen isotopes. Not only does the method reduce aggregation of hydrogen, helium, and isotopes thereof, and the like, under a surface layer of a tungsten-based material, greatly reducing a blistering phenomenon on a surface thereof, but also reduces thermal fatigue cracking damages.

Abstract translation: 一种通过使用层压结构改善聚变反应器内壁对等离子体照射的电阻的方法包括：将用于将等离子体面对的材料制成多个金属片，根据垂直于壁表面的方向将多个金属片层叠在一起， 用铜基板层叠多个金属片。 该方法涉及核应用领域，并且适用于通过使用氢同位素进行聚变反应的装置的内壁上的等离子体面向表面。 在钨基材料的表面层下，该方法不仅可以降低氢，氦和同位素的聚集，大大降低其表面上的起泡现象，而且减少热疲劳裂纹损伤。

公开(公告)号：US20160237193A1

公开(公告)日：2016-08-18

申请号：US14829505

申请日：2015-08-18

Applicant: BEIJING UNIVERSITY OF TECHNOLOGY

Inventor： XIAO LIU ,  ZIMING WANG ,  MING ZHAO ,  SUPING CUI ,  MINGZHANG LAN

IPC: C08F267/06

CPC classification number: C08F267/06 ,  C08F8/06 ,  C08F8/12 ,  C08F265/00 ,  C08F265/04 ,  C08F218/12 ,  C08F216/06

Abstract: This invention relates to a method for preparing a polycarboxylate superplasticizer by graft copolymerization of fatty acid vinyl ester onto acrylate polymer. In this invention, a type of polycarboxylate superplasticizer by graft copolymerization of fatty acid vinyl ester onto acrylate polymer was synthesized by the processes of polymerization-grafting-alcoholysis-hydrolysis with acrylate and fatty acid vinyl ester as main reactants. In the first polymerization step, the polyacrylate was synthesized by using acrylate as monomer and a certain amount of initiator and molecular weight regulator. In the second graft copolymerization step, the graft polymer with polyacrylate as main chain and poly(fatty acid vinyl ester) as side chain was synthesized by graft copolymerization between polyacrylate and fatty acid vinyl ester. The final polycarboxylate superplasticizer product with polyacrylic acid as main chain and polyvinyl alcohol as side chain was obtained by subsequent alcoholysis and hydrolysis steps. The preparation process of this invention exhibited some characteristics including simpleness, easy controlling, low cost, environmental friendliness and pollution free. The fatty acid vinyl ester was as a reactant instead of conventional polyethylene glycol macromonomer, which enriched the applicable scope of reactive raw materials. The prepared polycarboxylate superplasticizer showed good cement paste fluidity and fluidity retention, which manifested as good adaptability to cement and application performance in concrete.

Abstract translation: 本发明涉及一种通过将脂肪酸乙烯基酯接枝共聚到丙烯酸酯聚合物上制备聚羧酸酯超增塑剂的方法。 在本发明中，通过丙烯酸酯和脂肪酸乙烯基酯作为主要反应物的聚合接枝 - 醇解 - 水解方法，合成了一种通过脂肪酸乙烯基酯接枝共聚丙烯酸酯聚合物的多羧酸酯超增塑剂。 在第一聚合步骤中，通过使用丙烯酸酯作为单体和一定量的引发剂和分子量调节剂来合成聚丙烯酸酯。 在第二次接枝共聚步骤中，以聚丙烯酸酯为主链的接枝聚合物和聚（脂肪酸乙烯基酯）为侧链，通过聚丙烯酸酯与脂肪酸乙烯基酯的接枝共聚合成。 通过随后的醇解和水解步骤获得了以聚丙烯酸为主链和聚乙烯醇作为侧链的最终多羧酸酯超增塑剂产品。 本发明的制备方法具有简单易控，成本低，环保，无污染等特点。 脂肪酸乙烯基酯作为反应物代替常规的聚乙二醇大分子单体，其丰富了反应性原料的适用范围。 制备的聚羧酸酯超增塑剂具有良好的水泥浆流动性和流动性保持性，表现为对水泥的适应性和混凝土的应用性能。

公开(公告)号：US20160210528A1

公开(公告)日：2016-07-21

申请号：US14601254

申请日：2015-01-21

Applicant: Beijing University of Technology

Inventor： Lijuan Duan

IPC: G06K9/46 ,  G06K9/00 ,  G06K9/52

CPC classification number: G06K9/4671 ,  G06K9/00711 ,  G06K9/00744 ,  G06K9/4652 ,  G06K9/52

Abstract: The present invention relates to a method for detecting visual saliencies of a video image based on spatial and temporal features, including: dividing an input image into image blocks and vectorizing the image blocks; decreasing dimensions of each image block through principal component analysis; calculating a dissimilarity between each image block and each of the other image blocks; calculating a visual saliency of each image block by combining a distance between image blocks, to obtain a spatial feature saliency map; imposing a central bias on the spatial feature saliency map; calculating a motion vector of each image block, extracting a temporal visual saliency of the current image by combining motion vectors of previous two frames, to obtain a temporal feature saliency map; integrating the spatial feature saliency map and the temporal feature saliency map to obtain a spatiotemporal feature saliency map, and smoothing the spatiotemporal feature saliency map to obtain a resulted image finally reflecting a saliency of each region on the current image. In the present invention, a saliency map integrating the temporal features and the spatial features, so that saliencies in different regions in a video may be predicted more accurately.