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Zha

Fufang Zha, Wales AU

Patent application numberDescriptionPublished
20110198283MEMBRANE CLEANING WITH PULSED AIRLIFT PUMP - A method of cleaning a membrane surface immersed in a liquid medium with a fluid flow, including the steps of providing a randomly generated intermittent or pulsed fluid flow along the membrane surface to dislodge fouling materials therefrom. A membrane module is also disclosed comprising a plurality of porous membranes (08-18-2011

Fufang Zha, West Ryde AU

Patent application numberDescriptionPublished
20110056522METHOD OF CLEANING MEMBRANES - Methods for cleaning polymeric microfiltration or ultrafiltration membranes. The membrane may be contacted with a first cleaning solution including at least one oxidising agent. A second cleaning solution including at least one reducing agent may then be introduced to the membrane and first cleaning solution. The oxidising and reducing agents may undergo a neutralisation reaction to form an oxidation-neutral mixed cleaning solution. The membrane may be simultaneously cleaned during the neutralisation reaction.03-10-2011
20110100907MEMBRANE CLEANING WITH PULSED ARILIFT PUMP - A method of cleaning a membrane surface immersed in a liquid medium with a fluid flow, including the steps of providing a randomly generated intermittent or pulsed fluid flow along the membrane surface to dislodge fouling materials therefrom. A membrane module is also disclosed comprising a plurality of porous membranes (05-05-2011
20110139715Membrane System Backwash Energy Efficiency - A method of backwashing a membrane filtration system comprising at least one permeable membrane, preferably a hollow fibre membrane, the method comprising the step of applying a pressurised gas at a variable pressure to permeate remaining present in the system when filtration process is stopped or suspended to provide liquid for backwashing pores of the permeable membrane during a backwashing process. Also provided are methods of filtering solids from a liquid suspension using alternating liquid backwash pressures.06-16-2011
20110192783Potting Method - A membrane module includes at least one hollow fibre membrane; a first resin layer formed around an end of the at least one hollow fibre membrane; and a second resin layer chemically bound to the first resin layer, wherein the second resin layer is of greater flexibility than the first resin layer.08-11-2011
20120061333MEMBRANE CLEANING WITH PULSED AIRLIFT PUMP - A method of cleaning a membrane surface immersed in a liquid medium with a fluid flow, including the steps of providing a randomly generated intermittent or pulsed fluid flow along the membrane surface to dislodge fouling materials therefrom. A membrane module is also disclosed comprising a plurality of porous membranes (03-15-2012
20120187044METHODS OF CLEANING MEMBRANE MODULES - A method and apparatus for backwashing a membrane filtration system wherein permeate remaining present in the filtration system wherein permeate remaining present in the filtration system when the filtration process is stopped or suspended is used to provide liquid for backwashing the membrane pores during a backwashing process.07-26-2012
20120285885MEMBRANE CLEANING WITH PULSED GAS SLUGS - Aspects and embodiments of the present application are direction to systems and methods for treating fluids and to systems and methods for cleaning membrane modules used in the treatment of fluids. Disclosed herein is a membrane filtration system and a method of operating same. The membrane filtration system comprises a plurality of membrane modules positioned in a feed tank, at least one of the membrane modules having a gas slug generator positioned below a lower header thereof, the gas slug generator configured and arranged to deliver a gas slug along surfaces of membranes within the at least one of the membrane modules. The membrane filtration system may further comprise a global aeration system configured to operate independently from an aeration system providing a gas to the gas slug generator. The global aeration system may be configured and arranged to induce a global circulatory flow of fluid throughout the feed tank.11-15-2012

Patent applications by Fufang Zha, West Ryde AU

Jiping Zha, Taicang CN

Patent application numberDescriptionPublished
20120089541BIOMARKERS AND METHODS OF TREATMENT - The present invention concerns cancer biomarkers. In particular, the invention concerns c-met as biomarkers for patient selection and patient prognosis in cancer, as well as methods of therapeutic treatment, articles of manufacture and methods for making them, diagnostic kits, methods of detection and methods of advertising related thereto.04-12-2012

Kunpeng Zha, Beijing CN

Patent application numberDescriptionPublished
20110273200Fault Current Test Equipment of Direct Current Thyristor Valve - The present invention relates to a test equipment of direct current thyristor valve, and particularly relates to a fault current test equipment of direct current thyristor valve. This present invention equipment includes high voltage low current circuit and low voltage high current circuit, said test equipment includes fault current circuit, said fault current circuit includes resonant circuit, said high voltage low current circuit, low voltage high current circuit and fault current circuit are all connected with the thyristor sample Vt respectively. In his present invention, the thyristor sample is first heated through the high voltage circuit and low voltage high current circuit to reach the stable state. And then shut off the switch and carries out the test using the fault current which is produced by the fault current circuit. This prevents the power system from the short-circuit impact. Further more, the peak current and the current duration of the fault current circuit can be adjusted flexibly by changing the voltage of the adding energy circuit.11-10-2011
20110273201High Voltage Thyristor Valve Multi-Injection Test Method - This invention provides a high voltage thyristor valve multi-injection test method, it can meet one way valve and double valve operation test and over current test requirements. It has high equivalence and good flexibility. It includes FACTS double way thyristor valve and normal direct current thyristor valve operation tests and over current test. This method is novel, flexible, can carry out many different test and their mixture test and including the high voltage thyrsor valve different tests.11-10-2011
20110276189Control and Protection System of Converter Valve Operation Test Equipment - This present provides a control and protection equipment system suitable for synthesis converter operation test, relates to power system automation equipment field. This system includes human-machine interface element, synchronization element, signal acquisition element, data aggregation element, conditioning element, protecting element, wave form recording element, wave form monitor element, on-off input element, on-off output element, vale based element (VBE), high direct current supply power system controller, high voltage supply system controller, current surge circuit controller, impulse circuit controller, test converter valve water cooling controller and test equipment water cooling system controller. This system can control converter samples and auxiliary valves on set trigging timing, produce various operation tests need heat, voltage and current of the converter samples and carry through operation tests. This system can also monitor on-off condition and important analog parameters condition of main circuit immediately, when abnormal condition takes place, the suitable protective measures will be made immediately.11-10-2011

Kun Peng Zha, Beijing CN

Patent application numberDescriptionPublished
20120235294NOVEL WATER-COOLING RADIATOR OF THYRISTOR - The present invention relates to electric equipment field, and relates particularly to a novel water-cooling radiator of thyristor. This radiator flow channel design adopted helical flow channel combined with cellular fin structure. There are some advantages of this design: the flow resistance and thermal resistance is smaller, radiator surface temperature is homogeneous, heat change of inner water is enough, there are no flow dead zone and partial heat accumulation, the thermal resistance and the flow resistance are all adjusted according to design requirements by changing the circle number of helical flow channel and the layer number of cellular fin.09-20-2012

Shouhui Zha, Beijing CN

Patent application numberDescriptionPublished
20130090508Method for Preparing 1-Octene by Oligomerization of Ethylene - Disclosed is a method for preparing 1-octene in the presence of a catalyst system for ethylene oligomerization, which includes: premixing a part of ethylene gas as raw material with a solvent, mixing with the components a+b, c and d of the catalyst system, and then sending in a reactor; directly sending the rest of ethylene gas in the reactor; discharging the resultant liquid from the upper part of the reactor into an overflow channel; adding a catalysis stopping agent to the overflow channel; and then separating the resultant liquid. The advantages of the method are high selectivity of 1-octene and high catalytic activity.04-11-2013

Wenjuan Zha, Singapore SG

Patent application numberDescriptionPublished
20120149073Ketoreductase Polypeptides for the Preparation of Phenylephrine - The disclosure relates to engineered ketoreductase polypeptides and processes of using the polypeptides for production of phenylephrine.06-14-2012

Zhengjun Zha, Hefei City CN

Patent application numberDescriptionPublished
20100205202Visual and Textual Query Suggestion - Techniques described herein enable better understanding of the intent of a user that submits a particular search query. These techniques receive a search request for images associated with a particular query. In response, the techniques determine images that are associated with the query, as well as other keywords that are associated with these images. The techniques then cluster, for each set of images associated with one of these keywords, the set of images into multiple groups. The techniques then rank the images and determine a representative image of each cluster. Finally, the tools suggest, to the user that submitted the query, to refine the search based on user selection of a keyword and a representative image. Thus, the techniques better understand the user's intent by allowing the user to refine the search based on another keyword and based on an image on which the user wishes to focus the search.08-12-2010

Zheng-Jun Zha, Hefei City CN

Patent application numberDescriptionPublished
20090310854Multi-Label Multi-Instance Learning for Image Classification - Described is a technology by which an image is classified (e.g., grouped and/or labeled), based on multi-label multi-instance data learning-based classification according to semantic labels and regions. An image is processed in an integrated framework into multi-label multi-instance data, including region and image labels. The framework determines local association data based on each region of an image. Other multi-label multi-instance data is based on relationships between region labels of the image, relationships between image labels of the image, and relationships between the region and image labels. These data are combined to classify the image. Training is also described.12-17-2009

Zunpeng Zha, Beijing CN

Patent application numberDescriptionPublished
20120326727COMPOUND TEST METHOD OF HIGH VOLTAGE DIRECT CURRENT TRANSMISSION CONVERTER VALVE - The present provided a compound test method of high voltage direct current transmission converter valve. The invention method adopted two independent high voltage sources to supply forward and reverse high voltage in blocking interval. It causes that the test voltage of the test valve is more close to that of the real operation. The experiment equivalence is better. Moreover, by controlling the scheduling of two high voltage sources, it can produce more waveforms, can choose different combination according to program requirements and design character; this method has large choice room and flexibility.12-27-2012