95 results about "Sample composition" patented technology

The invention relates to an automatic and random sample split-charging device for cigarette inspection, which is characterized by comprising a blanking coding mechanism and a bag-taking packaging mechanism, wherein the bag-taking packaging mechanism is positioned below the blanking coding mechanism, and the blanking coding mechanism comprises a left hopper, a right hopper, a blanking passage, an electromagnet, a lifting plate, a photoelectric detector and a code sprayer nozzle, wherein the left hopper and the right hopper are used for containing samples, the blanking passage is positioned below the left hopper and the right hopper and comprises arc-shaped blanking plates at both sides, a front baffle plate and a rear baffle plate, and the electromagnet, the lifting plate and the photoelectric detector are arranged at the lower part of the blanking passage and controlled by a cylinder; and the bag-taking packaging mechanism comprises a left sucking disk, a right sucking disk, a sealing device and a sample bag box, wherein the left sucking disk and the right sucking disk are arranged on a platform, the sample bag box is arranged below the platform, the sucking disk at one side is controlled to rotate by a bag-taking motor through a sucking disk supporting arm, and the sucking disk at the other side is controlled to expand and shrink by a packaging cylinder. The invention overcomes the deficiencies of easily-occurring human errors, large labor intensity and low efficiency existing in the sample preparation process of three-point inspection of cigarette products in current industries and can realize the automation of sample composition scheme generation, cigarette combination, cigarette encoding and sample packaging.

A method for performing sub-micron optical spectroscopy, using a heated SPM probe and far-field collection optics is described. The enhanced emission characteristics at a sharp heated tip constitute a highly localized wideband IR source. Thus the IR absorption and emission properties of a sample surface adjacent can be observed and measured in the farfield even though the interaction region is sub-micron in scale. . . . providing spatial resolution mapping of sample composition.

The invention provides a method and apparatus for trapping, releasing and / or separating sample components in solution passing through a channel with or without packing material present by passing ion current through the channel driven by an electric field. A portion of the ion current comprises cation and / or anion species generated from second solution flows separated from the sample solution flow path by semipermeable membranes. Cation and / or Anion ion species generated in the second solution flow regions are transferred into the sample solution flow path through ion selective semipermeable membranes. Ion current moving along the sample solution flow path is controlled by varying the composition of the second solutions and / or changing the voltage between membrane sections for a given sample solution composition. The sample composition may also be varied separately or in parallel to enhance trapping, release and / or separation efficiency and range. The invention when interfaced to an Atmospheric Pressure Ion Source, that may include Electrospray Ionization, with mass spectrometric analysis enables independent control of the on-line sample separation process and the Atmospheric Pressure Ion Source or Electrospray ionization processes.

A method and apparatus for generating a model is disclosed in embodiment of that present application. One embodiment of the method includes obtaining a sample set; extracting a subset of partial samples in the sample set, and performing the following training steps of inputting the samples in the subset to an initial model, determining a loss value of each sample inputted based on the informationoutputted from the initial model and the class annotation carried by the samples in the subset; selecting the loss value of the positive sample and the loss value of the part of the negative sample inthe subset, and determine the average value of the selected loss value as the target loss value; determining whether the initial model training is completed based on the target loss value; if so, determining the initial model after training as the category detection model. This embodiment improves the accuracy of the generated model.

The invention provides a crude chocolate sample composition, a method for manufacturing the crude chocolate sample composition effectively and a novel dessert for using the crude chocolate sample composition with above advantages. The crude chocolate sample composition has the flavor and taste of the crude chocolate sample; and the crude chocolate sample composition can maintain the better flavor and taste when circulated for around one year. The above problem is solved by a crude chocolate sample composition, wherein the crude chocolate sample composition comprises the following components in percentage by weight: 40-70% of sugar comprising disaccharide or below, 5-25% of hard butter and 8-18% of moisture; the water activity is lower than 0.600; and the content of the straight chain polyatomic alcohol in the disaccharide is 5-25% by weight.

Systems and methods for monitoring a sample or a sample flow associated with a process or an environment. The systems and methods detect one or more chemical or biological agents present in a sample or for detecting changes in the chemical / biological composition of a sample flow. The systems and methods transmit light at the sample, receive a resulting spectral response, perform a spectral analysis, and display a result or choose a course of action. The analysis compares the sample's response to known spectrums to determine composition or to determine if the composition of the sample flow has deviated from “normal”. In one embodiment, the systems and methods uses deep ultraviolet light to produce both a Raman and a fluorescence response, separated in frequency, which are simultaneously discerned and analyzed. In this embodiment the analysis is used to determine sample composition. In other embodiments, the analysis is used to discern or warn of changes, or to choose a course of action.

The invention provides a microwave thermogravimetric analysis device and combined system which comprises a microwave heating system, a temperature control system, a quality monitoring system and an external combined system. A microwave generator is arranged on the back of the device, and microwaves are transmitted to a stainless steel microwave resonator cavity through a waveguide. The temperature of a sample is monitored in real time by adopting an infrared thermometer, and the microwave output power is regulated, so that the set temperature needs are met. A through hole is formed in the bottom of the stainless steel cavity and connected with a lower electronic scale through a hollow cylindrical quartz tube; and the top end of a quartz tube bracket stretches into the stainless steel cavity. A quartz reaction bottle is arranged on the quartz bracket, the opening of the quartz reaction bottle penetrates through the stainless steel cavity, and the quartz reaction bottle is connected into a sample injection pipeline of the combined analysis system after valve diversion so as to perform online real-time analysis. The system disclosed by the invention is simple in structure and convenient to operate, microwave thermogravimetric analysis under different conditions can be obtained, thermogravimetric gas sample loss is effectively avoided, and complete sample composition information can be obtained.

The invention relates to a standard sample used for temperature calibration of a thermogravimetric analyzer and a preparation method thereof, in particular to a sol-gel method for preparing a standard sample product for temperature calibration of a thermogravimetric analyzer. We aim at the current situation that the standard samples of domestic thermal analyzers come from two foreign companies and the current shortcomings of the standard products of these two companies, that is, they are not resistant to acid and alkali corrosion, low precision, easy to rust in humid environments, and lack of room temperature. Based on the characteristics of nearby standard samples, the lanthanide rare earth manganese oxides with giant magnetoresistance effect were used as raw materials to prepare magnetic oxide ceramics for temperature calibration of thermogravimetric analyzers. The product consists of two samples, one sample has a Curie temperature of 29°C, so its calibration temperature is 29°C, and the other has a Curie temperature of 90.4°C, and its calibration temperature is 90.4°C. The product has the advantages of high precision, acid and alkali corrosion resistance, humidity resistance, simple preparation process, cheap price and convenient use.

An instrument and associated method are disclosed for preparing samples for column chromatography. The method includes the steps of applying microwave energy to a sample composition containing at least one solvent to encourage a chemical reaction and generate desired products, thereafter mixing an absorbent media with the sample to absorb the solvent, the media being compatible with liquid chromatography that will separate the expected products, being chemically inert to the expected products, and being added in an amount sufficient to provide a substantially dry mixture of the media and the sample, but less than an amount that overly broadens the resolution of the sample during liquid chromatography, thereafter applying microwave energy to the dry mixture of the media and the sample to thereby encourage the solvent to evaporate under the influence of the microwave energy, and thereafter adding the dry mixture of the media and the remaining sample to a liquid chromatography column and separating the components of the remaining sample for identification and purification purposes.

An immunoassay reagent is provided which comprises an analyte binding agent in a diluent, and a glycosaminoglycan in an amount sufficient to reduce non-specific binding in an assay of a sample for the analyte. Provided is such an immunoassay reagent in which the analyte is troponin I, the analyte binding agent is a biotinylated anti-troponin I antibody, and the glycosaminoglycan is chondroitin sulfate. A sample composition is also provided which comprises a sample to be assayed for the presence of an analyte, an analyte binding agent, and a glycosaminoglycan other than heparin. Further provided is a method of detecting an analyte in a sample, in which non-specific binding is reduced in the method using a glycosaminoglycan.

Systems and methods for monitoring a sample or a sample flow associated with a process or an environment. The systems and methods transmit terahertz signals at the sample, receive a resulting spectral response, perform a spectral analysis, and display a result or choose a course of action. The analysis compares the sample's absorption or reflection spectral response to known spectrums to determine composition; or to determine if the sample flow has deviated from “normal”. In one embodiment, the systems and methods use reflection terahertz on a contained sample; in another it uses transmission terahertz to look at a sample flow outside the vehicle. In this embodiment the analysis is used to determine sample composition. In other embodiments, the analysis is used to discern or warn of changes, or to choose a course of action.

The embodiment of the invention discloses a clustering result evaluation method and device based on large-scale samples. The embodiment of the invention provides a technical scheme. The method comprises: obtaining clustering results, randomly extracting a first set number of classes from all the classes of the clustering result, taking the clustering result as a first sampling class, extracting asecond set number of samples from each class of the first sampling class according to a set sampling rule to serve as sampling samples, forming a second sampling class based on the sampling samples, finally calculating a contour coefficient according to the second sampling class, and obtaining corresponding clustering result evaluation. By adopting the technical means, the data volume of the clustering result can be reduced through reasonable sample sampling, the complexity of clustering result evaluation calculation is reduced on the premise of ensuring that the sampled sample has the representativeness of the clustering result, and the generation efficiency of clustering result evaluation is further improved.

Systems and methods for monitoring a sample or a sample flow associated with a process or an environment. The systems and methods transmit terahertz signals at the sample, receive a resulting spectral response, perform a spectral analysis, and display a result or choose a course of action. The analysis compares the sample's absorption or reflection spectral response to known spectrums to determine composition; or to determine if the sample flow has deviated from “normal”. In one embodiment, the systems and methods use reflection terahertz on a contained sample; in another it uses transmission terahertz to look at a sample flow outside the vehicle. In this embodiment the analysis is used to determine sample composition. In other embodiments, the analysis is used to discern or warn of changes, or to choose a course of action.

The invention discloses a sample mold used in aluminum alloy spectral analysis, comprising a bottom mold holder, as well as a left mold holder and a right mold holder which are hinged on the bottom mold holder; an injection mouth and a mold cavity are formed at the position where the butt seam at the corresponding side of the left mold holder and the right mold holder is taken as the center; a bottom mold inlay piece is arranged at the upper part of the bottom mold holder and at the position corresponding to the mold cavity; a left mold inlay piece and a right mold inlay piece are respectively arranged around the mold cavity in the left mold holder and the right mold holder, so that the mold cavity is formed by the space structured by the bottom mold inlay piece, the left mold inlay piece and the right mold inlay piece; the bottom mold inlay piece, the left mold inlay piece and the right mold inlay piece are made of the material with the melting point higher than the specimen alloy and the heat transfer system higher than the bottom mold holder, the left mold holder and the right mold holder. The sample mold can improve the sample composition segregation in aluminum alloy spectral analysis so as to enhance the representativeness of the sample analysis surface and the data reproducibility.