55results about How to "Change selectivity" patented technology

The invention provides a nonstandard size cargo warehouse location matching management system comprising a cargo measurement integrated device which is used for measuring size and weight data of a cargo; a nonstandard size cargo warehouse location matching module which is used for automatically matching an appropriate warehouse location for the cargo according to cargo specification attribute values indicating size and weight of the cargo, a warehouse location bearable weight attribute value and a warehouse location accommodation size attribute value; a warehousing cargo identity identification module which is used for generating an information bar code for identifying a unique identity of the warehousing cargo on the basis of the appropriate warehouse location matched for the cargo; a tag generation module which is used for generating a tag with the information bar code for the cargo; and a warehouse outgoing and warehousing registration management module which is used for acquiring the information bar code via scanning the tag and registering warehousing and warehouse outgoing information for the cargo according to the information bar code. A full-automation warehouse location matching operation is realized, and fully computerized management of nonstandard size cargos is realized by utilizing means like the electronic tag.

A method of treating cancer, inflammatory disease or an infectious disease or condition in a subject in need of such treatment is disclosed. The method comprises administering to a subject an effective amount of a manzamine, or a rationally modified manzamine derivative or analog or an optical isomer or racemate or tautomer thereof or a pharmaceutically acceptable salt or prodrug thereof generated through optimized fermentation of a Micromonospora sp., extraction from sponges and then modified through semisynthesis.

Disclosed is an iodine-based etching solution for etching a material wherein palladium and gold coexist. This etching solution contains at least one additive selected from the group consisting of nitrogen-containing five-membered ring compounds, alcohol compounds, amide compounds, ketone compounds, thiocyanic acid compounds, amine compounds and imide compounds. The etching rate ratio between palladium and gold (etching rate of palladium / etching rate of gold) is not less than 1.

A process and catalyst for improving the yield of propylene from residual oil feedstock includes obtaining residual oil feedstock from a vacuum distillation tower. The residual oil feedstock has contaminant metals such as sodium or vanadium. The residual oil feedstock is contacted with a cracking catalyst in a catalytic cracking zone to make products. A ZSM-5 zeolite, a binder, a filler and a metal trap are components of the cracking catalyst. The metal trap has a trapping agent in an outer shell of the catalyst, a trapping agent in the ZSM-5 binder or combinations thereof. After reacting, the cracking catalyst is separated from the products in a separator zone, then regenerated by combusting coke deposited on a surface of the cracking catalyst in an oxygen-containing environment. The cracking catalyst is returned to the catalytic cracking zone. The catalyst with the metal trap is also disclosed.

The invention relates to a device and a method for converting methane by the aid of plasmas to produce high-grade energy such as hydrogen and ethylene. The device for converting the methane by the aid of the plasmas comprises a reaction cover. A gas inlet is formed in the top of the reaction cover, a gas outlet is formed in the bottom of the reaction cover, an upper metal base and a lower metal base are respectively arranged in the reaction cover, a multi-needle electrode array is fixed to the lower side of the upper metal base, needle points face downwardly, and an upper insulating base is arranged on the top of the upper metal base; the upper metal base is connected with a high-voltage end of a nanosecond pulse power source by a metal rod which penetrates the upper insulating base; a plurality of gas via holes are uniformly formed in the upper metal base and the upper insulating base; the lower metal base is a ground electrode, and a lower insulating base is arranged at the bottom of the lower metal base. The device and the method have the advantages that plasma discharge modes can be changed by the device, and the methane conversion efficiency and the product selectivity can be changed.

The invention discloses a doxorubicin hydrochloride self-assembled polymer nanoparticle which is prepared from doxorubicin hydrochloride and an amphipathic high-molecular polymer PLGA (Polylactic-co-Glycolic Acid), wherein the PLGA is formed by two monomers, namely lactic acid (LA) and glycolic acid (GA). The preparation method comprises the following steps: 1) dissolving a drug doxorubicin hydrochloride into a polar organic solvent A so as to obtain a doxorubicin hydrochloride solution; 2) dissolving the PLGA into a polar organic solvent B so as to obtain a PLGA solution; 3) uniformly mixing the doxorubicin hydrochloride solution with the PLGA solution so as to obtain an eutectic solution, dripping the eutectic solution into an aqueous phase under the stirring condition, continuously stirring, and volatilizing the organic solvent; and 4) centrifuging the completely volatilized solution at a high speed by using a centrifugal machine, and collecting the precipitate, thereby obtaining the doxorubicin hydrochloride self-assembled polymer nanoparticle. The prepared product can achieve the effects of reducing the drug toxicity, reducing the administration frequency, improving the drug stability, delaying in-vivo release time of the drug, reducing adverse reactions of the drug, improving the bioavailability and efficacy of the drug and achieving excellent treatment effects.

The invention relates to a nanometer array electrode used for CO2 electrochemical reduction, and preparation thereof. The nanometer array electrode is prepared through electrochemical anodic oxidationone-step method; on the surface of the electrode, catalytic particles are distributed in nanometer arrays. The preparation method of the electrode comprises following steps: firstly, a substrate material is subjected to oil removing and impurity removing processing; the substrate material is immersed in an anodic oxidation containing a cationic surfactant for electrochemical anodic oxidation processing so as to obtain the modified electrode with nanometer arrays on the surface. The characteristics are that: the nanometer array modified metal electrode is prepared in one step, preparation period is shortened; the catalyst diameter and length in the electrode nanometer arrays can be flexibly regulated and controlled through adjusting anodic oxidation parameters, and requirements of carbon dioxide electrochemical reduction technology on enlarging of electrode reaction area are satisfied.

The present invention relates to preparation process of counterpoison for protecting Co-Mo catalyst for the sulfur resisting conversion of CO. The preparation process includes soaking the active carrier gamma-Al2O3 in the immersion liquid with ammonium molybdate in 7+ / -0.1 wt%, soluble cobalt salt in 1.2+ / -0.1 % accounting in CoO, redox matter in 1-15 wt%, and ammonia water in 1-5 wt%, and stoving after soaking. The counterpoison can protect the activity of Co-Mo catalyst for the sulfur resisting conversion of CO to ensure the normal operation of the catalyst.

The invention discloses a pair of graphene-based micro molecular optical tweezers. The pair of graphene-based micro molecular optical tweezers comprise a light source convergence unit and a moleculartrapping unit, the light source convergence unit is arranged above the molecular trapping unit and converges external incident light to a solution pool of the molecular trapping unit below the light source convergence unit, a to-be-detected molecular solution is placed in the solution pool of the molecular trapping unit, the trapping unit is integrated with microfluidic, and a sample is convenientto use. The invention has the following beneficial effects that high focusing of a light source is realized by utilizing excellent photoelectric characteristics of graphene, nanoscale limitation of light energy is realized by utilizing a local surface plasma optical effect of a graphene nanostructure, molecular trapping and intrinsic resonance excitation are realized at the same time, GHz intrinsic vibration of molecules can be induced, and measurement is performed by utilizing a radio frequency probe; electromagnetic waves are guided to a molecular trapping point through the graphene nanoelectrode and the external high-frequency electromagnetic waves, interaction between the external high-frequency electromagnetic waves and molecules is achieved, and the vibration characteristics of themolecules and the biological characteristics of the molecules are changed through the electromagnetic waves.