248 results about "Quantitative Result" patented technology

An absorbent article that contains a lateral flow assay device for testing a bodily fluid, such as urine, blood, mucous, saliva, etc., is provided. The lateral flow assay device includes a chromatographic medium (e.g., porous membrane) that defines a detection zone that provides a signal indicative of the presence or absence of the analyte. The device may also include a control zone that provides a signal indicative of whether a sufficient amount of bodily fluid has been provided and tested. Regardless of its specific configuration, the lateral flow assay device is integrated into the absorbent article to provide a user or caregiver with rapid information about a health condition. For example, the device may be integrated into a diaper to provide information about the presence of enzymes or other compounds often encountered with a patient having a urinary tract infection. This information may provide an early warning system to allow the user or caregiver to seek additional testing and/or treatment. Alternatively, semi-quantitative or quantitative results may be derived from the test.

A lateral flow immunoassay featuring encapsulated metal particles. The encapsulated particles may use SERS nanotags as the detection modality. The use of encapsulated particles as a detection modality, in particular encapsulated SERS tags increases the sensitivity of an LFI prepared for visual reading and introduces the ability to obtain substantially more sensitive qualitative results or quantitative results through the analysis of a SERS spectrum read from an LFI prepared in accordance with the present invention. The use of SERS as detection modality also enhances the ability of an LFI device to be used for a multiplexed test. Other aspects of the present invention include LFI devices specifically configured to test whole blood, a reader for the detection and interpretation of a multiplexed assay and the hardware and software components used to implement the reader.

The invention relates to a pipeline analog-to-digital converter and a quick calibration method of capacitance mismatch thereof. The quick calibration method is characterized by carrying out inverted order calibration from a level circuit module of the last level. The calibration method of the level circuit module of each level comprises the following steps of: 1. starting calibration: closing thesecond transfer switch and the fourth transfer switch and cutting off the first transfer switch and the third transfer switch to enable the level circuit modules to work in the calibration state; 2. measuring quantitative results: setting input signals for the level circuit modules, and carrying out analog-to-digital conversion by the level circuit modules following the corresponding level and the back analog-to-digital conversion module of the pipeline analog-to-digital converter to obtain a set of corresponding quantitative results; and 3. measuring quantitative step length: subtracting thecorresponding quantitative results to obtain the actual quantitative step length of the level circuit modules and storing the step length in a storage module. Roughly quantitative calibration resultsare added by the invention, thereby improving the linearity of the transmission function of the pipeline analog-to-digital converter and increasing the significant digit of analog-to-digital conversion.

The invention discloses a non-probabilistic reliability optimization design method for a structural system. The non-probabilistic reliability optimization design method for the structural system comprises the following steps that (1) based on a safety factor design method, a design scheme of the structural system with a given safety factor is optimized; (2) based on quantitative results of uncertain sources in the structural system, dispersity of response of the structural system under multiple failure modes is obtained by an interval uncertainty analysis; (3) a non-probabilistic reliability index is introduced to calculate the reliability of the structural system under the multiple failure modes; (4) a non-probabilistic reliability optimization design model is established under the constraint of a non-probabilistic reliability or a given reliability of a safety factor scheme; (5) based on a conventional optimization algorithm to solve an optimization problem, the design scheme of the structural system with optimal reliability allocation is obtained. According to the non-probabilistic reliability optimization design method for the structural system, on the basis of ensuring the non-probabilistic reliability of the safety factor design scheme, the quality of the structural system is further reduced and the performance of the structural system is improved.

The invention discloses a system for detecting and positioning a brain stimulation target point. The system comprises an induction unit, a signal collecting and recording unit, a signal analyzing and processing unit and an information merging unit. The induction unit is used for inducing an examined person to move autonomously and at least one brain function state in the feeling or emotion so that the brain of the examined person can generate a brain physiological signal. The signal collecting and recording unit is arranged on the brain of the examined person and comprises a physiological signal sensor sensing the brain physiological signal, a front-end collector electrically connected with the physiological signal sensor and used for recording collected data, a microcontroller receiving the brain physiological signal output by the front-end collector, and a signal transmission communication module electrically connected with the microcontroller and used for outputting the signal. The signal analyzing and processing unit receives the brain physiological signal, processes and analyzes the brain physiological signal and outputs a quantitative result of the most obvious responding position (the target point) of the brain physiological signal. The information merging unit is used for conducting image merging of the quantitative result and an image of the brain of the examined person through a display module. According to the scheme, the target point position in deep brain stimulation can be effectively and quantitatively positioned.

The invention discloses an ultraviolet focal plane readout circuit and method based on pixel level analog-to-digital conversion. The ultraviolet focal plane readout circuit comprises a front end electric charge integrator, a pixel level analog-to-digital conversion module, a row/column selecting control circuit, an induction amplifier and an output level buffering device, wherein the front end electric charge integrator is used for integrating a weak photo-generated current of an ultraviolet detector so as to convert the current into a voltage; the pixel level analog-to-digital conversion module can quantitatively simulate the voltage in a pixel, and a quantitative result can be latched; each unit on a focal plane can be selected by the row/column selecting control circuit; the induction amplifier inducts and amplifies the quantitative result in the pixel and sends the amplified quantitative result into an output bus; the output level buffering device is used for increasing output driving capacity of a circuit, and output signals are sequentially output in a serial mode. According to the readout circuit, signals of the ultraviolet detector are directly converted into digital signals, interference of noise to the signals is reduced by reducing a simulation signal transmission path, on-chip analog-to-digital conversion is achieved, the signal to noise ratio of an ultraviolet focal plane chip is effectively improved, and the readout circuit can be applied to detection and imaging of the weak ultraviolet signals.

A test ¿C bed of multifunction sliding bearing is composed of mechanical driving unit including motor driving main shaft being supported by bearing and tested bearing at its two ends and being exerted load on main shaft center through load controller as well as being set with lubricant oil circulation loop; signal test system including transducer, secondary instrument and data collecting ¿C analyzing ¿C displaying unit for measuring and calculating performance parameter of sliding bearing at any moment and for displaying quantitative result in graphic form.

The invention relates to a detection method of selenium forms in plants. The method comprises the steps of: 1, previous preparation of detection: determining instruments and reagents for detection; 2, establishing high performance liquid chromatography and inductively coupled plasma mass spectrometry, that is, HPLC-ICP-MS hyphenated techniques; 3, establishing chromatograms of five selenium form standard solutions; 4, pretreatment of plant samples and extraction and detection of selenium forms: cleaning plant materials to be detected with ultrapure water, carrying out freeze drying, smashing and filtering, measuring the water content, sealing, placing and storing at 4 DEG C for standby; or performing ultrasonic extraction at 37 DEG C for 30 minutes by enzyme immediately, taking supernatant after centrifugalization, detecting the selenium forms according to the HPLC-ICP-MS hyphenated techniques, and calculating the content of selenium forms in plants according to peak areas corresponding to the selenium forms in the samples shown in collected maps. According to the method for detecting the selenium forms in plants, forms are separated completely, pretreatment of samples is simple, convenient and rapid, the moving phase is single in component and simple to prepare, the repeatability and the precision are good, and the quantitative result is accurate and reliable.

The invention relates to a comprehensive two-dimensional gas chromatography method for quantitatively determining diamondoid hydrocarbons in petroleum sample. The method comprises the steps of (1) preparing to-be-detected sample; (2) analyzing the to-be-detected sample with comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry (GC*GC-TOFMS) to obtain peak information of diamondoid hydrocarbons in the to-be-detected sample; (3) analyzing the to-be-detected sample with comprehensive two-dimensional gas chromatography-hydrogen flame ionization detector (GC*GC-FID) to obtain GC*GC-FID spectrogram of the to-be-detected sample; according to the peak information obtained in step (2), determining peak positions of diamondoid hydrocarbons and D16-adamantane in the GC*GC-FID spectrogram, and obtaining their peak area integration results; and (5) calculating according to internal standard method to obtain quantitative results of diamondoid hydrocarbons. The method is suitable for quantitative determination of diamondoid hydrocarbons in all crude oil and rock extract samples.

A method for the analysis, benchmarking, and finally improvement of communications pertaining to the field of public relations is described. The methodology is based on a massively quantitative approach suitable for numerical processing. Furthermore, it takes into account data outside the realm of communications and the press, such as a company's commercial and financial market performance to normalise the quantitative results and facilitate comparisons between competitors. Taking into account proprietary data such as the communication budget of a client the performance of the communications effort can be benchmarked objectively. Finally, the method offers the resulting key performance indicators to a wide audience within the client company in a “cock-pit” style manner.

The invention relates to a magnetic immunochromatographic test strip for quantitatively detecting alpha-fetoprotein in blood and a preparation method thereof. The test strip is assembled by pasting a coated film, magnetic particles combined with an AFP antibody, a sample pad and a water-absorbing pad which are mutually staggered by 2 millimeters in turn on a bottom plate and then covering an upper layer with a transparent plastic sealing film, wherein the coated film is precoated with an AFP-antibody detection line and a quality control line. As the test strip introduces a magnetic immunochromatography technique and a biotin-avidin system into the quantitative detection of AFP in blood, the test strip has the advantages of greatly increasing detection sensitivity, providing accurate quantitative results, reducing the labor intensity of operators and ensuring that clinicians can quickly diagnose patients.

The invention discloses a determination method of the pesticide residual quantity in tobacco and tobacco products and belongs to the field of pesticide residue detection. According to the method, sample pretreatment is easy and fast to operate, the removal efficiency of impurities and interferents is high, and treatment time can be greatly shortened. After being extracted with acetonitrile, a sample is purified with anhydrous magnesium sulfate, sodium chloride, sodium citrate and disodium hydrogen citrate first and then purified with C18 and neutral aluminum oxide, in this way, pigments in the tobacco and other co-extracts (such as fatty acid and chlorophyll) of tobacco plant tissue can be effectively removed, and losses, caused by sample concentration, purification, derivation and other operation, of to-be-tested pesticide components are avoided, The determination method has the advantages that a blank matrix standard matching method cannot be adopted for quantitative analysis because mouth-held cigarettes have many varieties and matrixes are different, and an isotope internal standard dilution method can lower the influence of the matrix effect on the quantitative result; operation is easy and rapid, detection sensitivity is high, and repeatability is good.

The invention discloses a method for simultaneously detecting 21 hydroxyl polybrominated diphenyl ethers (OH-PBDEs) in soil. The method includes the following steps that 1, a soil sample to be detected is extracted with organic solvent, and the organic solvent is selected from normal hexane, acetonitrile, methyl alcohol, dichloromethane, methyl tertiary butyl ether and NaOH-ethyl alcohol; 2, an extracting solution obtained in the step 1 is concentrated and purified; 3, a product in the step 2 is detected through an ultra-high performance liquid chromatography-triple quadrupole tandem mass spectrometer and compared with a hydroxyl polybrominated diphenyl ether standard substance in parallel operation to obtain quantitative results. The method has the advantages of being high in detection speed, accurate in result, high in recovery rate, low in detection limit, high in sensitivity and matrix interference resistance and the like.

A resonant acoustic nondestructive test device is provided. The device includes an intelligent controller capable of signal collection and data processing, a display, a workpiece movement position adjusting mechanism, a CCD image sensor, an automatic knocking hammer, a high-precision microphone, an alarm, a defective workpiece separator, a conveyor belt rotating wheel, a speed-variable motor, a conveyor belt driven wheel and a conveyor belt. A workpiece can be conveyed to the position of the CCD image sensor through driving the conveyor belt with the speed-variable motor. An image is collected by the CCD sensor, and the magnitude of knocking force is determined and is fed back to the automatic knocking hammer. The workpiece moves to the position of the automatic knocking hammer, then the knocking force is applied on the workpiece, and a resonant acoustic signal is collected by the high-precision microphone and is sent to a control center of the intelligent controller to determine whether the workpiece is defective or not. Internal and external defects of the overall structure are measured by the device, and an objective and quantitative result is obtained. Geometrical characteristics and material attributes of parts are reflected. The device is a base of a resonance detection technique.

The invention relates to a novel solid phase extraction (SPE) device capable of achieving the whole process of quantitative analysis pretreatment of protein. According to the device, an SPE tube is partitioned into two chambers with the same capacity through a partition plate, and after the chambers are filled with chromatographic packing, the whole process of sample treatment in quantitative proteomics can be achieved in situ, wherein the treatment comprises denaturation, reduction, alkylation, enzymolysis, isotope labeling and mixing of protein samples. The device is easy and convenient to manufacture and low in manufacturing cost, and has the advantages that the recovery rate is high, operation is easy, the accuracy of quantitative results is good and the precision is high when the samples are treated.

The invention discloses a method for rapidly screening perfluorinated compounds and precusor substances thereof in fish meat, and belongs to the technical field of aquatic product detection. According to the method, a pass-type Oasis PRiME HLB solid-phase extraction and purification strategy is adopted, a sample pretreatment process is simplified, impurity interference components such as fat and phospholipids in a sample matrix are removed, and simultaneous extraction of multiple perfluorinated compounds and precusor substances thereof is achieved; meanwhile, the advantages of a liquid chromatography-quadrupole rod/electrostatic field orbitrap high resolution mass spectrum are utilized, the qualitative capacity for a complex matrix is enhanced by obtaining the accurate mass number and rich fragment ion information, the quantifying effect of the high resolution mass spectrum is improved, high-throughput qualitative screening for simultaneously determining 18 PFCs and 21 precusor substances through single injected sampling is achieved, and a high-sensitive quantitative result is obtained.

A network order regulation method based on credit evaluation is a technology method for regulates personal and collective behavior of network, belonging to network management technology field. The administrator knows network behavior of personal user and institution via positive measurement and passively reception for report, evaluates network user behavior, management ability of responsible unit and practical effect, and finally embodying by a quantitative result- credit. The credit evaluation result can help regulating network order from three aspects: first, categorizing user and responsible unit according to credit recording result thereby facilitating administrator to grasp from plane not point network environment status, and defining significant administration direction; second, the credit can be embodied as concrete regulating lever and hooked with personal honor, behavior evaluation, quality grade, service application, even bank credit, and can set threshold, centralizes punishing for web station of low credit record; credit can produce realistic influence and the influence lasts long, thus large majority of users and institutions can keep self-discipline.

The invention discloses a device and a method for evaluating the gas micro-leakage of a sealing device and belongs to the field of sealing device leakage test. The device comprises a cavity, a sealing device, vacuumizing equipment, a vacuum gauge, a vacuum display and a computer. The cavity and the sealing device are connected through a connecting joint. The cavity and the vacuum gauge are connected through another connecting joint. The cavity and the vacuumizing equipment are connected through a third connecting joint. The vacuum gauge is connected with the vacuum display through a cable. The vacuum display is connected with the computer through another cable. Each connecting joint is provided with a stop valve. The vacuumizing equipment is connected with the computer through a third cable. The computer is provided with the vacuum degree testing and analyzing software and the vacuumizing control software. The invention further discloses a gas micro-leakage evaluation method based on the gas micro-leakage evaluation device. According to the device and the method for testing and evaluating the sealing performance of the sealing device, the advantages of high test precision, high sensitivity, adjustable sensitivity and the like are realized. Meanwhile, a quantitative result can be given for the micro-leakage situation.

A system for selecting points of interest on an anatomical image includes a main image display; a touch-screen display; a processing unit; and a network configured to interface the processing unit with the main image display and with the touch-screen display. An image displayed on the main display is concurrently displayed on the touch-screen display. The touch-screen display and the main image display concurrently display anatomical points of interest and the touch-screen display is configured to enable selecting anatomical points of interest by touching the points of interest on the touch-screen display. Touching of the points of interest can be effected by a user touching the touch-screen display, by a stylus, by a light pen, by a mouse, by a track ball, and by a joystick control. A corresponding method is also disclosed. Quantitative results are displayed on the main display.