31 results about "End Point Determination" patented technology

Phase end point determination is provided to automatically halt the application of energy to tissue. Prior to the application of energy, the phase end point determination is identified by measuring the product of permittivity and conductivity of the tissue to be treated.

Phase end point determination is provided to automatically halt the application of energy to tissue. Prior to the application of energy, the phase end point determination is identified by measuring the product of permittivity and conductivity of the tissue to be treated. An electrosurgical system can include an electrosurgical generator, a feedback circuit or controller, and an electrosurgical tool. The feedback circuit can provide an electrosurgery endpoint by determining the phase end point of a tissue to be treated. The electrosurgical system can include more than one electrosurgical tool for different electrosurgical operations and can include a variety of user interface features and audio / visual performance indicators. The electrosurgical system can also power conventional bipolar electrosurgical tools and direct current surgical appliances.

A homogeneous marker is formed, possibly by the adsorption of trace amounts of an ambient material such as carbon monoxide gas, at a surface of a deposited material when the plasma in momentarily interrupted during plasma enhanced chemical vapor deposition or other deposition processes involving the presence of a plasma. When the deposited material is etched, the resulting crystal dislocations or adsorbed gas is detected as a marker by optical emission spectroscopy techniques. The accuracy of an end point determination of the etching process can be increased by providing a sequence of such markers within the bulk or volume of the deposited material. The markers, being merely an interface such as a slight crystal dislocation in otherwise homogeneous material, do not affect the electrical, chemical or optical properties of the remainder of the predetermined deposited material and thus the homogeneity of the deposited material is not significantly affected.

The invention relates to a digestion acid dispelling instrument which comprises a heating temperature control device and an acid gas treatment device, wherein a plurality of digestion bottles are arranged on a heating plate of the heating temperature control device; the digestion acid dispelling instrument is characterized by further comprising an automatic liquid adding device, an acid gas absorption device and an end point determination device; the digestion bottles are evenly arranged on the heating plate in multiple rows and lines; the acid gas absorption device is arranged above the heating device and is connected with the acid gas treatment device. After the digestion acid dispelling instrument is used, the concentrated acid is automatically added, the end point is automatically controlled, the acid dispelling accuracy and the constant volume accuracy of digestion-acid dispelling can be guaranteed, and the measurement result is repetitive and reliable. The volatile acid gas is treated in a neutralizing way after being collected in a centralized way, so that the pollution caused by the acid gas is avoided.

The invention discloses an autonomous obstacle avoidance method for an unmanned boat integrating radar and photoelectric information; the method mainly comprises the following steps of performing obstacle target primary judgment, obstacle target maximum length value calculation, obstacle target secondary judgment, obstacle avoidance model determination, speed and course change quantity optimal solution acquisition, obstacle avoidance ending point determination and the like. According to the method, the radar and the photoelectric equipment are combined to accurately obtain the motion information and the outline information of the obstacle target, and the obstacle avoidance model capable of quantizing the speed and course change quantity of the unmanned boat is given, and then the optimal solution meeting a plurality of conditions including a maritime obstacle avoidance rule is obtained through a particle swarm algorithm; finally, the obstacle avoidance ending time point is determined,and a route is re-planned to move forward to the previous target. According to the method, the obstacle avoidance can be rapidly and safely realized, the running path cannot be wasted, and the intelligent degree of the unmanned boat is improved, and the method can be widely applied to the field of intelligent navigation of military or civilian unmanned boats at the later stage, so that the navigation safety of the unmanned intelligent aircraft in a complex water area is improved.

Magnets and magnetic particle-labeled reagents are used to capture and / or release magnetic particle-tagged entities for immunohematology diagnostic testing purposes, especially tests performed in blood banking. The magnetic tagged entities may be tagged antibodies, tagged blood cells, tagged universal binding partners, especially tagged lectins and tagged Coombs reagent, and other binding agents such as biotin-avidin, Protein A or G, ligands and their receptors and the like. Separation of unbound material from bound material is effected through the use of one or both the magnetic field effect on the magnetic labeled reactants and the density gradients of layers of an assay construct. Constructs such as chromatographic strip lateral flow format, and liquid phase reactions in suitable vessels with end point determinations that do not require centrifugation to detect reacted entities. Readable labels such as enzymes, fluorophors, chemiluminescent materials, radioactive isotopes, and other labels may be attached to Coombs reagent to provide a readable product of the Coombs reagent with any antibody participating in the assay.

The invention relates to a titration end point determination device for determining a fatty acid value of grain, which comprises a shell, a burette, a titration cup, a magnet stirrer, a stir bar, a light source and a light sensing element, and is characterized by also comprising a constant flow source circuit and a singlechip, wherein, the light source is connected with the constant flow source circuit; the light sensing element is connected with the singlechip; the shell is in a cuboid shape with a cylindrical through hole; the titration cup is transparent cylindrical glass, and is placed inthe shell; the light source is a high-power white light-emitted diode (LED); the light sensing element is a color sensor; and the LED and the color sensor are arranged on the inner wall of the shell at a 90-degree interval. Compared with the prior art, the device provided by the invention has the advantages of adopting the high-power white LED as the light source, needing no measurement darkroom,adopting the color sensor to detect the solution color, and automatically determining the titration end point by the singlechip, having simple structure and low cost, being matched with manual titration for use, and being beneficial for promotion and popularization.

The invention provides a Zhengtian pill mixing process end point determination method. The method comprises the steps of stratified sampling in the mixing process, near infrared spectrum collecting for a sample in the mixing process, mixing uniformity calculating through variable coefficients, spectrum pretreating and waveband selecting, mixing end point judging through principal component analysis and mahalanobis distance and Zhengtian pill mixing end point time determining. According to the Zhengtian pill mixing process end point determination method, a near infrared online analysis technology is introduced into the Zhengtian pill mixing process, and therefore evaluation on the mixing uniformity of powder is achieved; the method is reasonable in design and beneficial for improving the quality control level of the Zhengtian pill mixing process, and it can be adequately guaranteed that the product quality is stable and reliable; quick and in-time judgment on the mixing uniformity and a mixing end point in the Zhengtian pill mixing process is achieved, improvement of the production efficiency is facilitated, the production quality is guaranteed, and great realistic significance is achieved for traditional Chinese medicine industry technical progress and product quality upgrade.

A confocal microscope apparatus includes a disk scanner for scanning a specimen with a laser beam, and camera main body for photographing a still image. An exposure time calculation circuit is arranged to generates an exposure time signal for the camera main body. A rotation sensor, a scan track start point / end point determination circuit, and a rotation period calculation circuit are arranged to generate a rotational period signal for the disk scanner. A comparator compares the exposure time signal with the rotational period signal, so that a motor controller and a motor driver control rotation of a motor of the disk scanner by a comparison output from the comparator.

The invention discloses a rapid detection method for combustion performance of a flame-retardant fiber board. The rapid detection method applies an oxygen index tester, adopts top end ignition and combustion time as an end point determination method and can simply judge flame retardant grade of the combustion performance of the flame-retardant fiber board, the method is simple in operation, short in consumed time, high in working efficiency and low in labor consumption, production effectiveness is greatly improved, product detection cost is saved, quantitative comparative analysis is facilitated, production effectiveness and product quality of flame-retardant fiber boards of an enterprise are obviously improved, and simplicity, easiness and good repeatability effects are realized on screening of a formula of a flame retardant and preliminary evaluation of combustion performance grade of a wood-based artificial board, so that the rapid detection method disclosed by the invention is a simple and easy rapid detection and judgment method with good repeatability.

The invention relates to a method and a device for embedding and detecting watermark information. The invention provides the method for embedding the watermark information into a text image, comprising the following steps: an error correction of coding step: carrying out error correction of coding on the watermark information to be embedded into a text image, and generating a watermark information bit stream; a unit division step: dividing the text image into unit images by taking a character or a character string as a unit; a stroke end point determination step: determining all stroke end points in the unit images; a stroke end point sequence generation step: arranging the stroke end points in a unique stroke end point sequence irrelevant to the inclination of the text image; and a stroke end point changing step: embedding the watermark information bit stream into the stroke end point sequence, and determining whether to change the stroke end points and / or the adopted change mode according to the embedded watermark information bits. The invention also provides a method for detecting the watermark information embedded into the text image, which is used for detecting the embedded watermark information.

A polishing method for electropolishing a metal film formed on a wafer surface so as to fill concave portions formed on the wafer surface comprises a step of determining an electropolishing end point of the metal film on the basis of a change of a current waveform resulting from electropolishing the metal film. An electropolishing apparatus comprising a current detector for detecting a current waveform resulting from electropolishing a metal film and an end point determination part for determining an electropolishing end point of the metal film on the basis of the change of a current detected with the current detector is used to realize the polishing method.

The invention provides a detection method of simple substance manganese in lithium manganese phosphate, which realizes the separation of lithium manganese phosphate from simple substance manganese by dissolving simple substance manganese in a hot solution containing a buffer solution, and thus realizes simple and accurate detection of the simple substance manganese content in lithium manganese phosphate; the invention has the advantages of simple method, convenient operation, accurate end point determination, good reproducibility, and accurate data, and has wide industrial applications.

The present application contemplates systems and methods for identifying changes in workpiece parameters. Specifically, a signal processing system is disclosed that collects, analyzes and differentiates with respect to field time detected mechanical, chemical, optical, electrical or thermal signals generated during chemical mechanical polishing (CMP) to reveal Different stages during CMP for process control and end point determination. Such a control and / or end point determination scheme may be used to detect an interface between two material layers having similar properties, such as the interface of a low-k dielectric stack for a semiconductor.

A method for determining a film thickness in a semiconductor substrate is provided. The method initiates with providing multiple layers on the semiconductor substrate. Then, two reflectance spectra are generated where each of the two reflectance spectra are associated with different time periods while an upper layer is being removed. Next, a difference between the two reflectance spectra is calculated. Then, a curve is defined from the difference between the two reflectance spectra. Next, the defined curve is fitted by a known parametric function to determine the film thickness. An endpoint detector and a CMP system are also provided.

Embodiments in accordance with the present invention allow a second end-point determination (EPD) system to actively control the end-pointing of a semiconductor process chamber, by leveraging a legacy EPD system that is already integrated with the chamber. In one embodiment, the second EPD system controls a shutter that regulates the amount of light transmitted between a plasma light source and an optical emission spectroscopy (OES) sensor of the legacy OES EPD system. In this embodiment, the legacy OES EPD system is pre-configured to call end-point when an artificial end-point condition occurs, i.e. the intensity of light falls below a pre-set threshold. When the second EPD system determines an actual end-point condition has been reached, it closes the shutter which, causes the light intensity being read by the OES sensor to fall below the pre-set threshold. This in turn triggers an end-point command to the chamber from the legacy OES EPD system.

The invention discloses a method for determining a content of calcium in calcium-silicon alloy by potentiometric titration. An automatic potentiometric titration instrument and a copper ion selective electrode are adopted to realize accurate determination of the content of calcium in the calcium-silicon alloy. A sample is dissolved in nitric acid (concentrated)-hydrofluoric acid, and ammonium hydroxide separation is realized once each time perchloric acid smokes. Compared with the Chinese standard GB / T 4700.2-1988, the method has advantages that a sample dissolving and separation process is simplified while uniform sample dissolving effects are achieved. Automatic end point determination is realized through potential jump by the aid of the automatic potentiometric titration instrument, errors caused by manual end point determination are reduced, and precision and accuracy of analysis results are improved. By replacement of a calcium ion selective electrode with the copper ion selective electrode, the service life of the electrode is prolonged, and analysis cost is saved.

The invention discloses a 2,2,6,6-tetramethylpiperidone synthesis method for setting an end-point determination mode. A synthesis reaction comprises the steps of using acetone and ammonia as raw materials and heating for reaction under the action of ammonium nitrate as a catalyst; recovering the acetone by distillation after the reaction, alkali-washing distillation substrate and rectifying to obtain 2,2,6,6-tetramethylpiperidone; detecting pH value during the reaction, determining that the end of the reaction is reached if the pH value remains unchanged within 30 minutes, and stopping the heating to end the above reaction. The synthesis method has mild conditions, cheap and easily available raw materials and catalyst, and less side reactions. Since the amount of by-products is reduced, the post-treatment is relatively simple and the yield is high.

The invention discloses a method for determination of monomenthyl succinate content. The method comprises accurately weighing 0.25-0.30g of monomenthyl succinate, dissolving the monomenthyl succinate in 50ml of ethanol, carrying out titration by a phenolphtalein indicator with a concentration of 10g / L and a sodium methoxide titrand until the solution has a reddish color, simultaneously, carrying out a blank test, recording a consumption volume of the sodium methoxide titrand and calculating monomenthyl succinate content. In respects of titration solvent selection, titration end point determination and moisture influence, the novel method for determination of monomenthyl succinate content by nonaqueous titration is designed. Compared with the potentiometry and gas chromatographic method, the nonaqueous titration indicator method has result difference of 5% and has no significant difference and thus the method is feasible, has the characteristics of low cost and short time consumption and is conducive to promotion and application.

The invention relates to a method and a device for embedding and detecting watermark information. The invention provides the method for embedding the watermark information into a text image, comprising the following steps: an error correction of coding step: carrying out error correction of coding on the watermark information to be embedded into a text image, and generating a watermark information bit stream; a unit division step: dividing the text image into unit images by taking a character or a character string as a unit; a stroke end point determination step: determining all stroke end points in the unit images; a stroke end point sequence generation step: arranging the stroke end points in a unique stroke end point sequence irrelevant to the inclination of the text image; and a stroke end point changing step: embedding the watermark information bit stream into the stroke end point sequence, and determining whether to change the stroke end points and / or the adopted change mode according to the embedded watermark information bits. The invention also provides a method for detecting the watermark information embedded into the text image, which is used for detecting the embedded watermark information.

The invention discloses a method for synthesizing 2,2,6,6-tetramethylpiperidone with an end-point determination method. The synthesis reaction is as follows: acetone and ammonia are used as raw materials and heated under the action of ammonium nitrate as a catalyst Reaction; after the reaction is over, acetone is recovered by distillation, and the distillation substrate is washed with alkali and then rectified to obtain 2,2,6,6-tetramethylpiperidone; during the reaction, the pH value is detected, and within 30 minutes If the pH value remains unchanged, it is determined that the end of the reaction has been reached, and the heating is stopped to end the above reaction. The synthesis method of the invention has mild conditions, cheap and easy-to-obtain raw materials and catalysts, fewer side reactions, and the reduction in the amount of by-products makes post-processing simpler and higher yield.

The invention relates to a method for measuring the acidity of copper-containing iron sulfuric acid solution. The method comprises pipetting the sulfuric acid solution containing copper and iron in a conical flask, adding deionized water, then adding an appropriate amount of potassium oxalate, shaking well to fully dissolve the potassium oxalate, adding 6-10 drops of bromocresol green-methyl red Mix indicator, titrate with sodium hydroxide standard solution; when the sulfuric acid solution changes from dark red to dark green during the titration process, add two drops of sodium hydroxide standard solution in excess to be the end point; according to the acid-base titration formula, calculate The acidity of this copper-containing ferric sulfuric acid solution is obtained. The invention can well solve the problem that the end point does not change significantly in the original acid-base measuring method, and the solution does not produce precipitation during the titration process; the titration end point is easier to judge, and the measured acidity is more accurate.

The invention provides a method for determining the end point of prepolymerization reaction of cyanate ester resin. The method provided by the invention has the beneficial effects that the change of the energy-storage modulus of melt and the corresponding rule of the polymerization-reaction degree to represent and control the degree of the polymerization reaction, the process is simple, controllable and high in accuracy; the determination can be carried out at relatively high temperature, the change of the melt can be completely represented in the whole process from the state with the very-low viscosity and the extremely-easy flowing to be out of the prepolymerization end point, and the reflected characteristics of the change of the polymerization reaction is relatively close to that in the real state.

Integrated circuits and methods of producing the same are provide. In an exemplary embodiment, a method includes determining a memory area of the integrated circuit, and forming a select layer overlying the substrate. A portion of the select layer is selectively etched to form a select gate within the memory area. A concentration of an indicator is measured in an etch off-gas during the selective etching of the select layer, and the selective etching of the select layer is terminated when the concentration of the indicator crosses an end point determination concentration.