Abstract: This invention relates to a modification method for titanium-silicalite zeolite (TS-1). The feature of the invention is pretreating the TS-1, after that the TS-1 is modified by the mixture of quaternary ammonium salts and inorganic base. The quaternary ammonium salts mentioned above include tetrapropylammonium fluoride, tetrapropylammonium chloride, tetrapropylammonium iodide and their mixture. The inorganic base includes LiOH, NaOH and KOH and their mixtures. TS-1 after the modification is aftertreated at last. The invention is universal capable to modify the TS-1 synthesized by any method, especially the TS-1 made with a low cost method. The modification can enhance the catalytic performance on both gas and liquid phase epoxidation of propylene.

Abstract: The present invention relates to an electrochemical method for continuously producing a pure-oxygen gas and an oxygen-lean gas from an oxygen-containing gas mixture. At least two water electrolyzer units and two power supply units are used, of which each former solely corresponds to each latter, respectively. The two power supply units are at least one power supply unit of recycling hydrogen energy and an externally-connected power supply unit. The power supply unit of recycling hydrogen energy consists of hydrogen fuel cells, and the externally-connected power supply unit is comprised of at least one of the following cells and/or power supply, e.g. (a) solar cell(s), (a) direct methanol fuel cell(s), and/or an AC grid. In terms of the electrical circuit, each power supply unit is solely connected with the corresponding water electrolyzer unit.

Abstract: Disclosed is a method for continuously preparing a water-soluble azo dye by coupling a nebulizer with a pipeline. According to the method, the nebulizer is coupled with a pipeline with an interception tower plate, atomized and mixed reaction liquid flow flows through the pipeline with the interception tower plate, and mixing and reacting are further enhanced through turbulent mixing on the tower plate, so that instant separation of reaction heat generated in an atomizing contact reaction from a reactant is achieved, and normal-temperature rapid continuous production of the water-soluble azo dye is achieved. Fog drops which are atomized by using the nebulizer have small particle diameter and large specific surface area, so that a diazo salt and a coupling component are sprayed separately, move face to face and can be fully contacted, and mixing and reacting speeds are increased.

Abstract: The present invention relates to the field of micro electro mechanical system (MEMS), and particularly relates to a MEMS device of a two-dimensional (2D) air amplifier for electro spray ion focusing. It mainly includes original gas inlets, a gap structure, a wall structure and a center focusing groove in the axis of air amplifier. The feature of present invention is the double layers SU-8 mold fabricated by a micro machining method. Then the polydimethylsiloxane (PDMS) air amplifier is cast and bonded. In order to enhance the structure stiffness, PDMS is bonded with a glass supporting substrate. In the present invention, the fabrication method for the SU-8 mold and the PDMS casting and bonding processes are disclosed in detail so that the MEMS planar air amplifier ion focusing device can be fabricated by those skilled in the art. This fabrication method has advantages of simple process, low cost, small dimension size and easily implemented.

Abstract: A hydraulic pushing device, including: a hydraulic unit, a rear seat, a front seat, a prying mechanism, an automatic adjustment mechanism, and a zero-torque pushing mechanism. The hydraulic unit and the rear seat are disposed on a platform. The zero-torque pushing mechanism includes two hydraulic cylinders, one end of each of the two hydraulic cylinders is hinged to the rear seat via a third hinge pin, and the other end of each of the two hydraulic cylinders is hinged to the front seat via a second hinge pin. The automatic adjustment mechanism includes a control lever and two locating pieces. One end of the control lever is in a fixed connection to the front seat, and the other end of the control lever is clamped by the two locating pieces. The prying mechanism includes two pawls, a pawl shaft, two prying guides, and two rows of equidistantly-disposed stop pieces.

Abstract: An electromagnetic marine fender, including: a rubber fender, two electromagnet groups, tensile steel ropes, an electric cable, and a waterproof power socket. Each electromagnet group includes at least one electromagnet. The electromagnet coils of the electromagnets have the same winding direction. The two electromagnet groups are disposed on two sides of the rubber fender, and the two electromagnet groups and the rubber fender are connected and fixed as a whole by the tensile steel ropes. The electromagnet is a combination structure including an electromagnet core, an electromagnet coil, an electromagnet steel shell, and a rubber coating covering the electromagnet steel shell from the center outward. The electromagnet coils of the electromagnets of the two electromagnet groups are connected in parallel, and the two electromagnet groups are in electric connection to the waterproof power socket via the electric cable.

Abstract: The present invention provides a novel category of naphthalene-based two-photon fluorescent probes having a general formula I, wherein: X is selected from the X1, X2, X3 and X4; The mentioned two-photon fluorescent probes have a low fluorescence background in the non-tumor cells and tissues, and have a strong and specific fluorescent signal in the tumor cells and tissues. These probes have a certain level of water-solubility, while having good membrane permeability. In addition, they have a bigger effective two-photon absorption cross section. The compounds of the present invention also have a lower biotoxicity, phototoxicity and photobleaching. There is sufficient difference between the spectral range thereof and that of a biological sample.

Abstract: The present invention provides a polycarboxylic acid dye with low polymerization degree, which is formed by using a macromolecule skeleton of polymaleic acid linked to an azo chromophore, an azo-metal complexation chromophore or an anthraquinone chromophore via a bridge group of amide or ester bond. The dye is useful for dyeing and printing leather, protein fiber, cellulose fiber and synthetic fiber.

Abstract: The present invention provides a novel category of naphthalene-based two-photon fluorescent probes having a general formula I, wherein: X is selected from the X1, X2, X3 and X4; The mentioned two-photon fluorescent probes have a low fluorescence background in the non-tumor cells and tissues, and have a strong and specific fluorescent signal in the tumor cells and tissues. These probes have a certain level of water-solubility, while having good membrane permeability. In addition, they have a bigger effective two-photon absorption cross section. The compounds of the present invention also have a lower biotoxicity, phototoxicity and photobleaching. There is sufficient difference between the spectral range thereof and that of a biological sample.

Abstract: A process for producing mesophase pitch from high-temperature coal tar comprises: removing salts and quinoline insoluble fraction from a high-temperature coal tar to obtain a decant oil; using the decant oil as a hydrogenation feedstock, or pre-distilling the decant oil to obtain a residue with a boiling point higher than 230 and formulating the residue into a hydrogenation feedstock; catalytic hydrorefining the hydrogenation feedstock to obtain a hydrofined oil; distilling the hydrofined oil to obtain hydrogenated pitch; and subjecting the hydrogenated pitch to the thermal polymerization to obtain the mesophase pitch. The process has features such as an easily controllable degree of hydrogenation, complete removal of impurities, good raw material flowability, not tending to form the carbon deposition and the coking during the process, and not tending to jam the reactor. The product has a high content of mesophase pitch, a low softening point and a low impurity content.

Abstract: The present invention relates to the field of micro electro mechanical system (MEMS), and particularly relates to a MEMS device of a two-dimensional (2D) air amplifier for electro spray ion focusing. It mainly includes original gas inlets, a gap structure, a wall structure and a center focusing groove in the axis of air amplifier. The feature of present invention is the double layers SU-8 mold fabricated by a micro machining method. Then the polydimethylsiloxane (PDMS) air amplifier is cast and bonded. In order to enhance the structure stiffness, PDMS is bonded with a glass supporting substrate. In the present invention, the fabrication method for the SU-8 mold and the PDMS casting and bonding processes are disclosed in detail so that the MEMS planar air amplifier ion focusing device can be fabricated by those skilled in the art. This fabrication method has advantages of simple process, low cost, small dimension size and easily implemented.

Abstract: The present invention provides a group of water-soluble sulfur dye having carboxyl groups. For the kind of dye, a sulfur dye is first reduced to a leuco compound by sodium sulfide, and the leuco compound reacts with an active compound containing carboxyl groups to obtain a water-soluble sulfur dye containing the carboxyl group. The water-soluble sulfur dye provided by the present invention is applicable to dying of cotton, wool, silk, and leather. Being both water-soluble and carboxyl group reactive, the product has a simple application process and desirable color fastness, thereby having broad application prospects.

Abstract: The present invention relates to a class of magenta dyes, their preparation methods and applications. The magenta dyes include the compounds which simultaneously contain carboxyl group, sulfonic acid group and the carbonyl propyl sulfurylsulfonic acid on the anthrapyridone skeleton, showing in the form of general formula (I) or their mixtures. In the general formula (I): A may be cation M4, or substituted or unsubstituted benzyl group, or substituted or unsubstituted naphthyl methyl; M1, M2, M3 are respectively cation or cationic groups; Sulfonic acid group (SO3M2)m may located any position of the benzene ring, of which m is an integer of 0-2. As containing carboxyl (or carboxylic benzyl ester or naphthoate), sulfonic acid groups and carbonyl propyl sulfuryl simultaneously, the magenta dyes of the present invention feature outstanding tone, brightness, light resistance, water resistance, ozone resistance as well as solubility and solution stability, etc.

Abstract: A new method of producing fuel from biological oils and fats is provided, which comprises following steps: (a) proceeding with a catalytic cracking-deoxygenation reaction for the biological oils and fats under heating in the presence of a cracking-deoxygenation catalyst; (b) mixing the product of step (a) with hydrogen gas; and (c) proceeding with a catalytic hydrodeoxygenation reaction for the mixture from step (b) under heating in the presence of a hydrodeoxygenation catalyst. By means of the method of the present invention, clean fuel produced by using biological oils and fats as raw materials is compatible to the fuel composition produced from crude oil refining.

Abstract: A method of production of active carbon by pyrolysis of organic materials, includes pyrolysis unit, reforming unit, drying unit, purification unit, gas storage unit and high temperature regenerative combustion unit. Organic materials are subjected to pyrolysis reaction in pyrolysis unit to produce combustible gas, tar and char. Combustible gas is reformed through reforming unit then enters into the drying unit for drying organic materials. One part of the purified combustible gas is combusted in the direction of combustion channel in the high temperature regenerative combustion unit, and the combustion heat is produced. At the same time, another part of combustible gas exchanges heat in the direction of heat exchanger channel in the regenerative combustion unit. Then it is used as pyrolysis activation medium entering into the pyrolysis unit in process of pyrolysis and activation reaction. The char is activated by the combustible gas in the pyrolysis unit then forms activated carbon.

Abstract: The invention, belongs to the field of wastewater treatment technology, is a two-phase anaerobic reactor enhanced by addition of zero valent iron (ZVI). In the reactor, 2˜4 ZVI-filling layers are settled in the middle of the anaerobic hydrolysis-acidification tank, the effluent of which is fed into the rear anaerobic methanogenic tank. The degradation of organics is effectively enhanced in the anaerobic hydrolysis-acidification tank with dosing of ZVI, which may produce more acetic acid that is a desired substrate for the subsequent methanogenesis. Meanwhile, the acidic environment of the hydrolysis-acidification tank is helpful for the dissolution of ZVI to maintain its activity. The reactor is reasonably designed with high performance and strong shock resistance in anaerobic treatment of various wastewaters. Tests in lab-scale showed that hydrolysis-acidification and methanogenesis in this combined system were significantly improved compared with a reference reactor without addition of ZVI.

Abstract: A process for the preparation of carbon protected superparamagnetic or magnetic nanospheres is claimed which comprises the steps: (A) coating FexOy particles with an organic polymer, (B) coating the product obtained in step (A) with silica, (C) subjecting the product of step (B) to pyrolysis conditions, and (D) removing silica. According to present process, structurally stable carbon protected magnetic nanospheres were obtained, which can be dispersed in various solvents like water, EtOH, toluene, etc.

Abstract: The present invention provided a method for salting-out extraction of acetone and butanol from a fermentation broth, characterized in that one type, or two or more types of salts and one type, or two or more types of extractants are added to an acetone-butanol-ethanol (ABE) fermentation broth, in which the salt saturation achieves 10%˜100%; and the volume ratio of the fermentation broth containing salts to the extractants is 1:0.1˜1:5. The mixture is allowed to stand until phase separation is formed. The top phase is a solvent phase or extraction phase enriched with acetone and butanol whereas the bottom phase is a salt-enriched phase or raffinate phase. This method involves many advantages, such as the simplified operation procedure, accelerated separation process and low separation cost, and therefore becomes a promising method of separating acetone and butanol in industrial application.

Abstract: A Cu—Ni—Mo alloy thin film, including Ni as a solution element and Mo as a diffusion barrier element. Ni and Mo are co-doped with Cu. The enthalpy of mixing between Mo and Cu is +19 kJ/mol, and the enthalpy of mixing between Mo and Ni is ?7 kJ/mol. The atomic fraction of Mo/Ni is within the range of 0.06-0.20 or the weight faction of Mo/Ni within the range of 0.10-0.33. The total amount of Ni and Mo additions is within the range of 0.14-1.02 at. % or wt. %. A method for manufacturing the alloy thin film is also provided.

Abstract: A fluorescence probe compound, its preparation method and use are provided.