Patents Assigned to Zhejiang University
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Publication number: 20140362408Abstract: The present invention discloses a multi-core processor based image data rotating processing system for high-speed digital textile printers, including a data receiving equipment, a data analysis and processing equipment, a data transmission channel and data output equipment. The present invention also discloses a multi-core processor based image data rotating processing method for high-speed printers; it aims to receive data via the Ethernet interface, use numerous cores of the processor for parallel data processing, and implement data output via FPGA. As compared with prior arts, the system and method of the present invention can significantly improve the data gyration efficiency and output, and implement high yield of digital textile printers.Type: ApplicationFiled: December 25, 2012Publication date: December 11, 2014Applicant: Zhejiang UniversityInventors: Yao Wu Chen, Xiang Tian, Yeqiang Han
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Patent number: 8869712Abstract: A precision tilting platform used for static calibration of seismometers includes a base, a worktable, a rotary part, a driving part, a measuring part and supporting frames. The rotary part includes a shaft, a driving arm, a rotary table and a clump weight. The driving part includes a linear motor, a sliding table, a pair of linear guides and sliders and a grating scale. The readhead of the grating scale is fixed with the base and sends out a signal of zero position when the worktable is horizontal. The sliding table contacts the driving arm. When the linear motor is moving forward, the rotary part rotates toward the positive direction. When the linear motor is moving backward, the rotary part rotates toward the negative direction under gravity of the clump weight. The measuring part includes a laser interferometer and a reflector to obtain the tilting angle of the worktable.Type: GrantFiled: May 3, 2012Date of Patent: October 28, 2014Assignee: Zhejiang UniversityInventors: Wen He, Guanhua Xu, Shushi Jia
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Patent number: 8859452Abstract: A metal cyanide complex catalyst and its preparation and application are disclosed. The formula of this catalyst is M1a[M2(CN)bL1c]d(X)m(L2)n.xSu.yL3.zH2O and its preparation method comprises: (A) adjusting pH of a mixed solution I? of L3, M3e[M2(CN)bL1c]f, de-ionized water I, alcohol and/or ether solvent to less than 7.0, and adding it into a mixed solution II? of M1(X)g salt, Su or Su precursor, de-ionized water II, stirring for reaction under 20° C.-120° C. for 0.5-200 hours, separating and drying to obtain a solid product; and (B) repeatedly dispersing the solid into an anhydrous organic solvent containing L2 to form a slurry, distilling, separating and drying to obtain the metal cyanide complex catalyst. The catalyst is useful in preparing polyethers, polycarbonates and polyesters by homopolymerization of epoxides, or copolymerization of epoxides with carbon dioxide or anhydrides.Type: GrantFiled: December 13, 2010Date of Patent: October 14, 2014Assignee: Zhejiang UniversityInventors: Xinghong Zhang, Guorong Qi, Binyang Du, Renjian Wei, Xueke Sun
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Patent number: 8850058Abstract: The invention provides an Ethernet-based data transmission method, which is applied to a control system with a plurality of nodes. The method comprises: a first node caches the data needed to be sent (S101); if the current communication macro-cycle comprises the time segment for the first node to send data, the first node sends the cached data in the time segment for the first node to send data within the current communication macro-cycle; if the current communication macro-cycle does not comprise the time segment for the first node to send data, the first node does not send the cached data in the current communication macro-cycle; wherein other nodes do not send data in the time segment for the first node to send data within the current communication macro-cycle, and the communication macro-cycles have same durations and each communication macro-cycle consists of a plurality of time segments with a fixed length (S102). The invention further provides Ethernet nodes and a control system.Type: GrantFiled: April 9, 2010Date of Patent: September 30, 2014Assignees: Supcon Group Co., Ltd., Zhejiang UniversityInventors: Dongqin Feng, Qiang Wang, Jian Chu, Jianxiang Jin
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Patent number: 8846562Abstract: The present invention discloses a process for producing a nano calcium carbonate slurry from a feedstock of waste gypsum, wherein: an aqueous gypsum slurry of the feedstock is mixed with ammonia water by stirring; with CO2 injected in the slurry is under continuous stirring until the calcium sulfate in the waste gypsum is completely carbonated into nano calcium carbonate; after filtration, the filter cake is dispersed in water to obtain the nano calcium carbonate slurry. This process is easy to operate and to obtain a low-cost and a lower decomposition temperature of calcium carbonate. The present invention also discloses a nano calcium carbonate slurry and its application in preparation of a CaO-based carbon dioxide adsorbent and complex catalyst used for a reactive sorption enhanced reforming process for hydrogen production from methane.Type: GrantFiled: April 26, 2013Date of Patent: September 30, 2014Assignee: Zhejiang UniversityInventors: Sufang Wu, Peiqiang Lan
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Publication number: 20140250666Abstract: A method for manufacturing a compound refractive lens for focusing X-rays in two dimensions. The method includes the following steps: 1) manufacturing a mother lens; 2) manufacturing a daughter lens; and 3) assembling the mother lens and the daughter lens. The assembly of the mother lens and the daughter lens includes: aligning square embedded lens bodies of the daughter lens with square holes of the mother lens, respectively, for allowing the first parabola-shaped holes on the mother lens and the second parabola-shaped holes on the daughter lens to form an orthogonal structure; and inserting and pressing the square embedded lens bodies into the corresponding square holes, respectively. The method of the invention has advantages of high-precision for manufacturing and calibration of optical axis, and meanwhile the compound refractive lens manufactured based the method has high X-rays focusing efficiency.Type: ApplicationFiled: September 14, 2013Publication date: September 11, 2014Applicant: Zhejiang University of TechnologyInventors: Zichun LE, Wen DONG
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Patent number: 8826864Abstract: The present invention relates to a pet retractor, more particularly to an emergency self-locking pet retractor, comprising a collar, a leash, a leash spool, a shell body and a grip handle, in which it also comprises an emergency self-locking device. The emergency self-locking device includes a switch sliding block disposed on an external surface of the shell body and inserted into the shell body, a self-locking sliding block and a return spring thereof disposed in the shell body and attached to the switch sliding block, a self-locking baffle and a return torsion spring thereof disposed on an external surface of the leash spool and whose one end is hinged on the leash spool, and a self-locking baffle block disposed at the corresponding part on the external surface of the leash spool. When the pet suddenly breaks out or rises up, the emergency self-locking device can automatically lock the spool to prevent the leash from being pulled out, so that the pet cannot run around, attack people or damage properties.Type: GrantFiled: August 30, 2011Date of Patent: September 9, 2014Assignee: Zhejiang Universe Industry Co., Ltd.Inventor: Wenwei Tang
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Patent number: 8735143Abstract: The present invention provides a hepatic lobule-like bioreactor. The bioreactor includes a nanofiber scaffold enclosed within a housing. An intrahepatic fibrous vascular network, a bile capillary network, upper hepatic bile ducts, lower hepatic bile ducts, a common bile duct connecting the upper and the lower hepatic bile ducts, and collagen fibrous microchannels for hepatocytes surrounded by the bile capillary network are distributed throughout the nanofiber scaffold. Bile capillaries in the bile capillary network are provided with two or more inlet ports for biliary epithelial cells. The collagen fibrous microchannels for hepatocytes are provided with two or more inlet ports for hepatocytes. The intrahepatic vascular network is provided with a liquid inlet port and a liquid outlet port. These ports extend through the housing.Type: GrantFiled: March 21, 2011Date of Patent: May 27, 2014Assignee: Zhejiang UniversityInventors: Lanjuan Li, Chengbo Yu, Yiming Zhang, Xiaoping Pan, Weibo Du, Hongcui Cao, Guoliang Lv, Jianrong Huang
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Patent number: 8722932Abstract: A method for separating a mixture of components by simulated moving bed chromatography: (1) feeding the simulated moving bed such that the eluting power of the liquid phase in the second zone is greater than that of the liquid phase in the third zone, trapping the target component inside the second and the third zone; (2) a solvent for dissolving the mixture to be separated, instead of the feeding solution, is fed into the simulated moving bed through the feeding port, and the eluting power of the liquid phase in the second zone is maintained greater than that of the liquid phase in the third zone, thereby both the pre-impurity and the post-impurity are rinsed off completely, and the target component trapped in the second and the third zone is further purified; and (3) the target component trapped in the simulated moving bed is rinsed off the bed.Type: GrantFiled: September 14, 2011Date of Patent: May 13, 2014Assignee: Ningbo Institute of Technology, Zhejiang UniversityInventor: Feng Wei
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Patent number: 8695356Abstract: A pulse tube cryocooler modulating phase via an inertance tube and an acoustic amplifier (A1, A2) provided in the pulse tube cryocooler are disclosed. The acoustic power amplifier (A1, A2) is made of a metal pulse tube (PT1, PT2) filled with regenerative materials, which are located at a distance of X from the hot end of the pulse tube. The length of the regenerative materials is L which meets the requirement of X?L>0. The acoustic power amplifier (A1, A2) can be used not only in a single-stage pulse tube cryocooler, but also in a multi-stage pulse tube cryocooler thermally coupled or gas coupled. The regenerative materials may be any cold storage materials applicable at low temperatures, such as stainless steel wire mesh, lead pellet, lead thread et al. The acoustic power amplifier (A1, A2) can increase the acoustic power at the hot end of the pulse tube (PT1, PT2), which is advantageous to the phase modulation of the inertance tube, thereby the properties of the pulse tube cryocooler can be enhanced.Type: GrantFiled: March 12, 2010Date of Patent: April 15, 2014Assignee: Zhejiang UniversityInventors: Zhihua Gan, Bo Wang, Limin Qiu, Longyi Wang, Bingyan Fan
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Patent number: 8698966Abstract: A screen device for three-dimensional display with full viewing-field comprises a display screen (2), a rotation device (3) for the display screen, and an optical device (1) disposed in front side of the display screen (2). The optical device (1) may be a two dimensional diaphragm array (5) with inclined openings, a vertical lenticular lens array (6), a combination of a two dimensional diaphragm array (7) with vertical openings and a lens (8), or a combination of a two dimensional micro-lens array (9), a vertical diffusion screen (10) and a cylindrical lens (11).Type: GrantFiled: June 11, 2008Date of Patent: April 15, 2014Assignee: Zhejiang UniversityInventors: Xu Liu, Haifeng Li, Xiangdong Liu, Yuanfang Lin, Zhenrong Zheng, Caijie Yan
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Patent number: 8692036Abstract: The present invention relates to a method for preparing 2,3-dimethyl-2,3-dinitrobutane (DMNB), which includes the following steps: (1) making titanium-silicate molecular sieve catalyst, acetone, hydrogen peroxide and ammonia contact and react at 65-80° C. to obtain a modified titanium-silicate molecular sieve catalyst; and (2-1) making acetone oxime and hydrogen peroxide contact and react in the presence of the modified titanium-silicate molecular sieve catalyst and water under the conditions of temperature of 60-90° C. and pH of 8-10, and separating DMNB from the reaction products thereof; or (2-2) making acetone, ammonia and hydrogen peroxide contact and react in the presence of the modified titanium-silicate molecular sieve catalyst and water under the conditions of temperature of 60-90° C. and pH of 8-10, and separating DMNB from the reaction products thereof.Type: GrantFiled: September 5, 2011Date of Patent: April 8, 2014Assignee: Ningbo Institute of Technology, Zhejiang University, ZhejiangInventors: Shengjian Zhang, Yingxian Zhao, Hong Zhang
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Patent number: 8685698Abstract: A yellow pigments generation deficient Sphingomonas strain (Sphingomonas sp. ZD001) and application thereof in preparing gellan gum by microbial fermentation are provided. The strain is preserved in China Center for Type Culture Collection (CCTCC) with the address of Wuhan University, Wuhan, 430072, China, the preservation date of the strain is 10 Sep. 2009, and the preservation serial number is CCTCC No: M 209298. The main beneficial effect of the present invention is that the fermented liquor contains no yellow pigments but is milky white, colorless superior gellan gum can be obtained by only depositing polysaccharide with a small quantity of ethanol or isopropanol, so that the post purification and de-coloration techniques of gellan gum production can be simplified, the yield can be enhanced, and the production cost can be reduced.Type: GrantFiled: August 13, 2010Date of Patent: April 1, 2014Assignees: Zhejiang University, Zhejiang DSM Zhongken Biotechnology Co., Ltd.Inventors: Xuechang Wu, Rongming Wu, Ou Li, Liang Zhu, Yamin Chen, Chaodong Qian, Mei Chen
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Publication number: 20140087454Abstract: The present invention provides a hepatic lobule-like bioreactor. The bioreactor includes a nanofiber scaffold enclosed within a housing. An intrahepatic fibrous vascular network, a bile capillary network, upper hepatic bile ducts, lower hepatic bile ducts, a common bile duct connecting the upper and the lower hepatic bile ducts, and collagen fibrous microchannels for hepatocytes surrounded by the bile capillary network are distributed throughout the nanofiber scaffold. Bile capillaries in the bile capillary network are provided with two or more inlet ports for biliary epithelial cells. The collagen fibrous microchannels for hepatocytes are provided with two or more inlet ports for hepatocytes. The intrahepatic vascular network is provided with a liquid inlet port and a liquid outlet port.Type: ApplicationFiled: March 21, 2011Publication date: March 27, 2014Applicant: Zhejiang UniversityInventors: Lanjuan Li, Chengbo Yu, Yiming Zhang, Xiaoping Pan, Weibo Du, Hongcui Cao, Guoliang Lv, Jianrong Huang
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Patent number: 8671646Abstract: A cable dome structure comprises a top circle and circles of vertical jack posts supported by radiating and hoop cables. The upper and lower ends of the jack post have an upper and a lower cable bar nodes, respectively. The upper cable bar node is connected with two upper radiating cables of present circle at one side, two upper radiating cables of the circle above and two lower radiating cables of the circle above at another side and an upper hoop cable connecting the middle of the upper cable bar node. The lower cable bar node of the present circle at the same side of the upper radiating cables is connected with two lower radiating cables of the present circle and a lower hoop cable connecting the middle of the lower cable bar node. The top circle comprises an upper and a lower cable bar nodes and an elastic pole.Type: GrantFiled: August 27, 2010Date of Patent: March 18, 2014Assignees: Zhejiang University, Zhejiang Zhancheng Construction Group Co., Ltd.Inventors: Xin Zhuo, Miaofu Wang, Shilin Dong
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Patent number: 8671103Abstract: A method for semantic service registration and query based on WordNet is disclosed. The method includes the following steps: (1) semantic service registration: a service provider registers a service and uploads the Web Service Description Language (WSDL) document corresponding to the service, and a system parses the WSDL document to form a service description tree, then constructs a WordNet ontology tree according to the input of the service, performs a semantic annotation on the input/output of the service to form a Web Service Semantic Description Document (WSDL-S), and finally stores it in a register library; (2) semantic service discovery: a service requester inputs the information of service type, semantic information of the service input/output and other user-defined information to the register library to retrieve the services meeting the requirements; and (3) similarity sorting: the services meeting a certain threshold are sorted in descending order.Type: GrantFiled: April 7, 2010Date of Patent: March 11, 2014Assignee: Zhejiang UniversityInventors: Zhaohui Wu, Wenqiu Zeng, Jian Wu, Ying Li, Shuiguang Deng, Jianwei Yin
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Publication number: 20140013573Abstract: A method for manufacturing a compound refractive lens for focusing X-rays in two dimensions. The method includes the following steps: 1) manufacturing a mother lens; 2) manufacturing a daughter lens; and 3) assembling the mother lens and the daughter lens. The assembly of the mother lens and the daughter lens includes: aligning square embedded lens bodies of the daughter lens with square holes of the mother lens, respectively, for allowing the first parabola-shaped holes on the mother lens and the second parabola-shaped holes on the daughter lens to form an orthogonal structure; and inserting and pressing the square embedded lens bodies into the corresponding square holes, respectively. The method of the invention has advantages of high-precision for manufacturing and calibration of optical axis, and meanwhile the compound refractive lens manufactured based the method has high X-rays focusing efficiency.Type: ApplicationFiled: September 14, 2013Publication date: January 16, 2014Applicant: Zhejiang University of TechnologyInventors: Zichun LE, Wen DONG
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Patent number: 8582904Abstract: A method and apparatus for second order prediction are provided. In the decoding method, the reconstruction of decoded picture comprises second order prediction and compensation and second prediction storage. The second order prediction and compensation comprises first prediction and compensation and second prediction and compensation, input of which includes reconstructed first order residue and second order residue. The encoding method comprises second order prediction and second prediction storage. Second order prediction consists of first prediction and second prediction, input of which includes reconstructed first order residue and second order residue, and it will generate bit-stream accordingly. This invention will eliminate redundancy using second order prediction encoding and decoding method, so that coding efficiency will be improved.Type: GrantFiled: October 14, 2008Date of Patent: November 12, 2013Assignee: Zhejiang UniversityInventors: Lu Yu, Sijia Chen, Jianpeng Wang
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Patent number: 8540908Abstract: A method of preparing nano-dispersed high-all-trans-carotenoid microcapsules is provided, comprising: preparing 10-20% carotenoid suspension by milling the high-all trans-carotenoid crystals with dichloromethane until the particle size thereof is in the range of 2-5 ?m, then supplying the suspension together with preheated dichloromethane of another pass into a dissolving tank to obtain a solution of 0.5-2%; delivering the solution together with ethanol or isopropanol into a crystallization device having high gravity rotating packed bed simultaneously and continuously, and then into a wiped-film evaporator for desolvation until the solid content is 10-20%, then a transparent alcohol dispersion of carotenoid is obtained; mashing the alcohol dispersion together with an aqueous solution containing an antioxidant and protective colloid and spray drying to obtain nano-dispersed high-all-trans-carotenoid microcapsules.Type: GrantFiled: March 18, 2010Date of Patent: September 24, 2013Assignees: Zhejiang NHU Company Ltd., Zhejiang University, Beijing University of Chemical TechnologyInventors: Zhirong Chen, Jianfeng Chen, Hong Yin, Hong Zhao, Dan Qiu, Lifang Shi, Jiandong Li, Guangwen Chu, Lei Shao
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Patent number: D709710Type: GrantFiled: December 18, 2013Date of Patent: July 29, 2014Assignee: Zhejiang UniversityInventor: Genlin Ye