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32results about How to "Avoid uneven levels" patented technology

Process for dimerizing olefins

A process for dimerizing olefins in the presence of a catalyst, a hydrocarbon feedstock containing C4 to C6 isoolefins is subjected to dimerization. The process comprises the steps of contacting the C4 to C6 isoolefins at conditions conducive to dimerization with a catalytic material comprising an acidic mesoporous molecular sieve, the catalytic material being thermally stable at a temperature of at least 900° C., and carrying out the contacting step essentially in the absence of butadiene and water in the feedstock. By means of the invention, the dimerization process can be operated over extended periods of time with prolonged maintenance intervals.
Owner:NESTE OIL OY

Exact match no sand wood floor repair kit

A repair kit for repairing wood floors without sanding includes a two-part epoxy putty with an epoxy resin and filler, while the second part has a hardener. The filler may be one or more of an alkali silicate, alkaline earth silicate, silica, and borosilicate. The kit further includes a flexible card with a flat or nearly-flat edge, a palette of color cards, and an activator solution. Each color card has a pigmented lacquer deposited on color card and the activator solution is used to dissolve the lacquer off of the surface of the card.
Owner:TOUCH UP PRODS

Enhancing Perceptual Performance of SBR and Related HFR Coding Methods by Adaptive Noise-Floor Addition and Noise Substitution Limiting

Methods and an apparatus for enhancement of source coding systems utilizing high frequency reconstruction (HFR) are introduced. The problem of insufficient noise contents is addressed in a reconstructed highband, by using Adaptive Noise-floor Addition. New methods are also introduced for enhanced performance by means of limiting unwanted noise, interpolation and smoothing of envelope adjustment amplification factors. The methods and apparatus used are applicable to both speech coding and natural audio coding systems.
Owner:DOLBY INT AB

Complex plain river network generalization method achieving approximately-uniform water storage relation

The invention discloses a complex plain river network generalization method achieving an approximately-uniform water storage relation. The method includes the steps that river channel geographic information data are obtained and processed; a simulated river network polygon is constructed; total water storage amount parameters of a generalized river network inside the simulated river network polygon are determined; the overlapping width of each simulated river sections of the river network polygon is determined; the width overlapping position of each river section of the river network polygon is determined. The water storage capacity of the generalized river network can be made to be approximately uniform with that of a prototype river network, simulation precision can be effectively improved, and the flood risk is easily analyzed; for the water administrative department in charge, defined data requirements are provided, and therefore data compiling is easily performed in management work of the plain river network; for scientific researchers in the water conservancy industry, the method is adopted for constructing a generalized river network hydrodynamic model, and in this way, it can be avoided that due to excessive dependency on experience, different researchers construct the model at different levels.
Owner:HOHAI UNIV

Resource sharing system based on block chain

ActiveCN111723150AImprove two-way securityImprove management effectDatabase distribution/replicationDigital data protectionBlockchainReal-time computing
The invention discloses a resource sharing system based on a block chain. The resource sharing system comprises a service request module, a blockchain resource library resource uploading module and anetwork service module; the output end of the service request module is connected with the input end of a blockchain resource library, the blockchain resource library is in bidirectional connection with the network service module, and the output end of the resource uploading module is connected with the input end of the blockchain resource library. According to the resource sharing system based ona block chain, firstly, the system can log in only through personal verification; the bidirectional security of resource extraction and resource uploading is improved; the resource sharing effect canbe improved; after the resources are extracted, the resources can only be borrowed to one user at regular time, the resources are well limited, the resources are forcibly recovered after the time, onone hand, the resources cannot be shared within the limited time, and on the other hand, the resources can be borrowed by other people after the time passes, so that the management effect of the resources is well improved.
Owner:JIANGSU RONGZE INFORMATION TECH CO LTD

Slitting mechanism for glass wool

The glass wool slitting mechanism comprises a working bin, a conveying belt is installed at the lower end of an inner cavity of the working bin, a first guide rail is fixed to the upper end of the working bin, the surface of the first guide rail is slidably sleeved with a first sliding sleeve, and a second sliding rail is fixed to the upper end face of the first sliding sleeve. According to the glass wool cutting device, when the glass wool cutting device is used for cutting, the cutting area of glass wool can be extruded through the two pressing rollers, so that the fluffy glass wool cutting area is compressed, the thickness of the glass wool cutting area is reduced, compared with an existing direct cutting mode, the cross section cut by the glass wool cutting device is neater, the situation of uneven layers is prevented, and the cutting efficiency is improved. And when the glass wool is extruded by the pressing roller, the pressing roller can rise and fall in the sleeve plate through the spring and roll at the same time, the situation that the glass wool cutting area is broken due to excessive extrusion force is prevented, excessive friction force is prevented from being generated between the pressing roller and the glass wool during cutting, and the cotton pressing assembly can be conveniently and rapidly disassembled and assembled by rotating the bolt.
Owner:九江润诚新材料有限公司

A Generalization Method for Complex Plain River Networks with Approximately Consistent Water Storage Relationships

The invention discloses a complex plain river network generalization method achieving an approximately-uniform water storage relation. The method includes the steps that river channel geographic information data are obtained and processed; a simulated river network polygon is constructed; total water storage amount parameters of a generalized river network inside the simulated river network polygon are determined; the overlapping width of each simulated river sections of the river network polygon is determined; the width overlapping position of each river section of the river network polygon is determined. The water storage capacity of the generalized river network can be made to be approximately uniform with that of a prototype river network, simulation precision can be effectively improved, and the flood risk is easily analyzed; for the water administrative department in charge, defined data requirements are provided, and therefore data compiling is easily performed in management work of the plain river network; for scientific researchers in the water conservancy industry, the method is adopted for constructing a generalized river network hydrodynamic model, and in this way, it can be avoided that due to excessive dependency on experience, different researchers construct the model at different levels.
Owner:HOHAI UNIV
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