138 results about "Activity measurements" patented technology

A method and apparatus for performing refractive index, birefringence and optical activity measurements of a material such as a solid, liquid, gas or thin film is disclosed. The method and apparatus can also be used to measure the properties of a reflecting surface. The disclosed apparatus has an optical ring-resonator in the form of a fiber-loop resonator, or a race-track resonator, or any waveguide-ring or other structure with a closed optical path that constitutes a cavity. A sample is introduced into the optical path of the resonator such that the light in the resonator is transmitted through the sample and relative and / or absolute shifts of the resonance frequencies or changes of the characteristics of the transmission spectrum are observed. A change in the transfer characteristics of the resonant ring, such as a shift of the resonance frequency, is related to a sample's refractive index (refractive indices) and / or change thereof. In the case of birefringence measurements, rings that have modes with two (quasi)-orthogonal (linear or circular) polarization states are used to observe the relative shifts of the resonance frequencies. A reflecting surface may be introduced in a ring resonator. The reflecting surface can be raster-scanned for the purpose of height-profiling surface features. A surface plasmon resonance may be excited and phase changes of resonant light due to binding of analytes to the reflecting surface can be determined in the frequency domain.

A multiprocessor system (10) includes a plurality of processing modules, such as MPUs (12), DSPs (14), and coprocessors / DMA channels (16). Power management software (38) in conjunction with profiles (36) for the various processing modules and the tasks to executed are used to build scenarios which meet predetermined power objectives, such as providing maximum operation within package thermal constraints or using minimum energy. Actual activities associated with the tasks are monitored during operation to ensure compatibility with the objectives. The allocation of tasks may be changed dynamically to accommodate changes in environmental conditions and changes in the task list. Temperatures may be computed at various points in the multiprocessor system by monitoring activity information associated with various subsystems. The activity measurements may be used to compute a current power dissipation distribution over the die. If necessary, the tasks in a scenario may be adjusted to reduce power dissipation. Further, activity counters may be selectively enabled for specific tasks in order to obtain more accurate profile information.

A head set (2) comprises a brain electrical activity (EEG) sensing device (3) comprising EEG sensors (22) configured to be mounted on a head of a wearer so as to position the EEG sensors (22) at selected positions of interest over the wearers scalp, the EEG sensing device comprising a sensor support (4) and a flexible circuit (6) assembled to the sensor support. The sensor support and flexible circuit comprise a central stem (4a, 6a) configured to extend along a center plane of the top of the head in a direction from a nose to a centre of the back of a wearers head, a front lateral branch (4b, 6b) configured to extend across a front portion of a wearer's head extending laterally from the central stem, a center lateral branch (4c, 6c) configured to extend across a top portion of a wearer's head essentially between the wearer's ears, and a rear lateral branch (4d, 6d) configured to extend across a back portion of a wearer's head. The sensor support (4) comprises a base wall (401) and side walls (402) extending along edges of the base wall to form an essentially flat “U” shaped channel (403) in which the flexible circuit (6) is inserted and the base wall comprise EEG sensor orifices (404) to allow access to the EEG sensor contacts or electrodes on the flexible circuit.

A multiprocessor system (10) includes a plurality of processing modules, such as MPUs (12), DSPs (14), and coprocessors / DMA channels (16). Power management software (38) in conjunction with profiles (36) for the various processing modules and the tasks to executed are used to build scenarios which meet predetermined power objectives, such as providing maximum operation within package thermal constraints or using minimum energy. Actual activities associated with the tasks are monitored during operation to ensure compatibility with the objectives. The allocation of tasks may be changed dynamically to accommodate changes in environmental conditions and changes in the task list. Temperatures may be computed at various points in the multiprocessor system by monitoring activity information associated with various subsystems. The activity measurements may be used to compute a current power dissipation distribution over the die. If necessary, the tasks in a scenario may be adjusted to reduce power dissipation. Further, activity counters may be selectively enabled for specific tasks in order to obtain more accurate profile information.

An EEG neurofeedback and total evoked brain activity measurement methods utilize minimum ambient EEG activity as stimulant frequencies. A method of using repetitive stimulation in conjunction with EEG neurofeedback protocols is described. Electrodes, attached to a subject's scalp, transmit electroencephalographic (EEG) signals from the subject. These signals are in response to the visual and / or auditory stimuli being displayed to the subject. The resultant EEG signals are then filtered at pre-defined frequencies or frequency bands. The output from the filtered EEG signals is then analyzed and monitored for short-term state changes. The invention also uses flicker stimulation, real-time signal filtration and feedback, feedback during audio and visual stimulation derived from filtered outputs, and fundamental and integral harmonics in combination with total evoked response.

A real-time parking activity measurement system comprising multiple, self-powered, mesh networked wireless vehicle sensors, a collection device, and a host computer. The wireless mesh network architecture allows the wireless vehicle sensors to be more reliable and to be more energy efficient by at least an order of magnitude compare to traditional wireless point-to-point and star-topology architectures. This architecture also enables the expansion of the measurement area without any additional infrastructure besides the necessary addition of wireless vehicle sensors.

The invention relates to sweat activity measurement, e.g. for determining a physiological state of a subject, embodied by a method as well as a kit with an immittance measuring circuit and electrodes with contact electrolyte. Sweat activity is considered a transport phenomenon and can be defined as a flux, e.g. gram water per skin area per second. Prior art methods determining water absorbed per gram dry stratum corneum measures skin moisture and do not truly reflect sweat activity. A periodic signal with frequency of 60 Hz or lower is applied to reduce contribution from complex admittance of the skin, and skin conductance is measured as a degree of sweat activity. The contact electrolyte allows filling of sweat ducts with sweat from sweat glands, this may be characterized in that it does not substantially fill the sweat ducts when being positioned on the skin and / or in that it has a re-absorption time constant from the sweat ducts into the Epidermis of less than 15 min.

A method is used in applying data access activity measurements. A slice relocation candidate list is generated which identifies slices to be relocated along with respective destination tier information. Slices in a pool are matched to respective matching tiers based on the slices' respective temperatures and tier preferences. Based on whether a current tier for a slice differs from the matching tier for the slice, the slice is listed in the relocation candidate list.

An early alert system and a method for livestock disease detection are disclosed. An activity measurement zone (AMZ) is defined near an incentive device (e.g. a livestock feeder) with an RFID tag reader and a uniquely-designed feedlot fence crossbar-embedded RFID antenna, which amplifies multiple signal wavelengths in a single dipole antenna. The early alert system is configured to detect and count an animal's access into the AMZ with an RFID tag attached to the animal. If the animals' activity relative to the AMZ drops to an alarmingly low level (e.g. dropping below an alert trigger point) over time, then a user of the early alert system is informed of a potential health problem of the animal and may also be encouraged to inspect the animal in person for further determination of its current health and potential medical issues.

Disclosed in the invention is an activity measurement-based hardware trojan detection method, comprising three parts: bench file generation, circuit activity measurement and hardware tojan detection test vector set generation. More specifically, a circuit netlist is analyzed; activity values of internal nodes of the circuit are calculated; lists of circuit nodes with low 0 activity and low 1 activity are generated; and determination and grouping are carried out on the nodes to generate a hardware trojan detection test vector set. According to the invention, different activity threshold values can be arranged; there is no extra hardware cost for hardware trojan detection; and combined logical type hardware trojan can be effectively detected. Besides, the provided method can be applied for target node extraction in a hardware trojan detectable design method.

A system and method for editing active measurements in a client management tool are provided. One or more clients in a computer network measure a variety of attributes associated with the function of the client. A monitor process establishes and collects a subset of the client attributes to measure for client management. Without terminating the collection of the initial subset of client attributes, the monitor process establishes and begins collecting a modified subset of client attributes.

An EEG neurofeedback and total evoked brain activity measurement methods utilize minimum ambient EEG activity as stimulant frequencies. A method of using repetitive stimulation in conjunction with EEG neurofeedback protocols is described. Electrodes, attached to a subject's scalp, transmit electroencephalographic (EEG) signals from the subject. These signals are in response to the visual and / or auditory stimuli being displayed to the subject. The resultant EEG signals are then filtered at pre-defined frequencies or frequency bands. The output from the filtered EEG signals is then analyzed and monitored for short-term state changes. The invention also uses flicker stimulation, real-time signal filtration and feedback, feedback during audio and visual stimulation derived from filtered outputs, and fundamental and integral harmonics in combination with total evoked response.

Variations of synthesis methods for Zero Platinum Group Metal (ZPGM) catalyst systems are disclosed herein. The methodologies of influence of synthesis methods on Cu—Mn catalyst systems which may include a variation of carrier metal oxides are disclosed. The XRD characterization and activity measurements of a series of stoichiometric and non-stoichiometric Cu—Mn spinels with different support oxide are discussed.

Variations of bulk powder catalyst material including Cu—Mn, Cu—Fe, and Fe—Mn spinel systems for ZPGM TWC applications are disclosed. The disclosed bulk powder catalyst samples include stoichiometric and non-stoichiometric Cu—Mn, Cu—Fe, and Fe—Mn spinels on Pr6O11—ZrO2 support oxide, prepared using incipient wetness method. Activity measurements under isothermal steady state sweep test condition may be performed under rich to lean condition. Catalytic activity of samples may be compared to analyze the influence that different binary spinel system bulk powders may have on TWC performance of ZPGM materials for a plurality of TWC applications. Stoichiometric Cu—Mn, Cu—Fe, and Fe—Mn spinel systems exhibit higher catalytic activity than non-stoichiometric Cu—Mn, Cu—Fe, and Fe—Mn spinel systems. The influence of prepared Cu—Mn, Cu—Fe, and Fe—Mn spinel systems may lead into cost effective manufacturing solutions for ZPGM TWC systems.

A method and apparatus for performing refractive index, birefringence and optical activity measurements of a material such as a solid, liquid, gas or thin film. The apparatus has an optical ring-resonator with a closed optical path that constitutes a cavity. A sample is introduced into the optical path of the resonator such that the light in the resonator is transmitted through the sample and relative and / or absolute shifts of the resonance frequencies or changes of the characteristics of the transmission spectrum are observed. A change in the transfer characteristics of the resonant ring, such as a shift of the resonance frequency, is related to a sample's refractive index (refractive indices) and / or change thereof. A reflecting surface may be introduced in a ring resonator. The reflecting surface can be raster-scanned for the purpose of height-profiling surface features.

Variations of coating processes of Cu—Mn—Fe ZPGM catalyst materials for TWC applications are disclosed. The disclosed coating processes for Cu—Mn—Fe spinel materials are enabled in the preparation ZPGM catalyst samples according to a plurality of catalyst configurations, which may include an alumina only washcoat layer coated on a suitable ceramic substrate, and an overcoat layer with or without an impregnation layer, including Cu—Mn—Fe spinel and doped Zirconia support oxide, prepared according to variations of disclosed coating processes. Activity measurements are considered under variety of lean condition to rich condition to analyze the influence of disclosed coating processes on TWC performance of ZPGM catalysts for a plurality of TWC applications. Different coating processes may substantially increase thermal stability and TWC activity, providing improved levels of NOx conversion that may lead to cost effective manufacturing solutions for ZPGM-TWC systems.

Variations of metal oxide materials used as support oxide for Cu—Mn spinel powder for ZPGM TWC applications are disclosed. Bulk powder catalyst samples of Cu—Mn spinel structure on MgAl2O4, Al2O3-9% BaO, Al2O3—SrO, Al2O3—CeO, CeO2—ZrO2 support oxides and among others are prepared using incipient wetness method. BET-surface area analysis is performed for selected support oxides before and after deposition of Cu—Mn spinel to analyze thermal stability. XRD analysis is performed for bulk powder catalyst samples to investigate Cu—Mn spinel phase formation, and phase stability for a plurality of temperatures to about 1000° C. Activity measurements under isothermal steady state sweep test condition may be performed under rich condition to lean condition for different aging temperature at about 800° C. and about 1000° C. Catalytic activity of samples may be compared to analyze the influence that selected support oxides may have on thermal stability and TWC performance of ZPGM materials for a plurality of TWC applications.

Disclosed are enzyme assays using biolayer interferometry. Assays may be carried out using immobilized substrate or with a substrate capture format. In certain embodiments, the assays are carried out using unlabeled substrates. The methods are broadly applicable to enzyme assay measurements, can be carried out in vivo or in vitro, and are easily multiplexed.

The present invention relates to one kind of high efficiency expression promoter of rice and its application. The promoter has the nucleotide sequence as shown in SEQ ID No.1. It is shown by means of cloning one Os252 promoter to be predicted to express in stem in high efficiency, constituting GUS fused expression vector transferred to rice and performing PCR detection and chemical GUS tissue staining, that Os252 promoter has expression in the leaf, stem and seed albumen of rice. It is shown by means of GUS enzyme activity measurement that Os252 promoter has enzyme activity in leaf and seed albumen of rice about twice that of 35S promoter and enzyme activity in stem slighter lower than that of 35S promoter, and is one high efficiency expressed promoter. The present invention may be used in the genetic improvement and production research of rice.

Provided is a sleep and activity amount display program that allows easy checking of sleep data along with activity amount data for each time period of a certain day. The sleep and activity amount display program includes a step of obtaining sleep data of a user from a sleep measurement device; a step of obtaining activity amount data of a user from an activity measurement device; a step of creating a time display image divided into time slots that each indicate a predetermined range of time; and a step of plotting a getting-up time and a bedtime included in the sleep data as well as the activity amount data on the time slots of the time display image.

Activity metrics may be recorded with granularity to allow a user to view performance information specific to particular times of an activity session. Accordingly, in one example, activity metrics may be detected and recorded for a minimum time unit that may be automatically defined or defined by a user. The metrics may then be conveyed to a user through a display or through audible content. Users may be able to select portions of the activity session to store based on the granular performance information. Content files such as audio or video or athletic performance data files may be cropped based on the selected portions.

Determining pace or speed based on sensor data may include determining an amount of contact time a user's foot has with a workout surface such as the ground. Contact time may be determined by identifying samples in the sensor data that correspond to various events such as a heelstrike, a toe-off and a subsequent heelstrike. In one example, these events may be identified by determining a sequence of three sample values (e.g., a triplet) that exceeds corresponding thresholds. The validity of an identified triplet (e.g., heelstrike, toe-off and heelstrike) may be confirmed by determining whether a difference between a last event sample and a middle event sample is greater than a difference between the middle event sample and an initial event sample. Once confirmed, a contact time may be determined from the triplet. A linear or non-linear relationship may then be applied to the contact time to determine a speed or pace.

It is an object of the preset invention to provide an activity measurement molecule necessary for measuring biological reactions or changes in in vivo conditions, and a method for measuring activity using the above activity measurement molecule. It is intended to provide an activity measurement molecule used for simultaneously analyzing multiple biological reactions and / or changes in in vivo conditions, which is characterized in that one or more fluorescent molecule-labeled and / or -unlabeled biomolecules used as targets of the biological reactions or changes in in vivo conditions bind onto a quantum dot, and a method for simultaneously analyzing multiple biological reactions and / or changes in in vivo conditions using the above activity measurement molecule.

The invention relates to a novel method for measuring the biological activity of biological pesticides, which belongs to a novel method for measuring the biological activity. The novel method is characterized in that an agaragar layer is taken as a short-time cultivation nutrient source and a moisturizing material of a plant excised part in the measurement of biological activity; and meanwhile, green peach aphids are adopted as biological detecting materials to detect the biological activity of a detecting sample, and the insecticidal activity measurement is carried out according to the average reproduction quantity and the average death rate of the green peach aphides and the relevance of biological pesticides to be detected. The method solves the problems that plant leaves are dried easily and dehydrated generally in the insect bioassay by utilizing excised plant leaves to further influence the bioassay result and improves the accuracy of the experimental result. The method has simple and convenient operation, short experimental period and low cost. The invention can be applied to the biological activity measurement of biological pesticides and other pesticides of current varieties and the screening researches of new pesticides and is especially suitable for the bioassay of biological pesticides to insects with sucking mouth parts, such as aphides, and the like.

The invention discloses a Chinese yam polysaccharide extracting method. The method comprises the following steps: 1) taking fresh Chinese yam as a raw material, peeling, stripping and slicing; 2) adding an extracting solution, and pulping to obtain Chinese yam homogenate; 3) centrifuging the Chinese yam homogenate to obtain Chinese yam homogenate centrifugal supernatant; 4) filtering the Chinese yam homogenate centrifugal supernatant to remove starch in order to obtain filtrate; 5) adjusting the pH of the filtrate, and performing magnetic stirring to obtain a suspension; 6) centrifuging the suspension, and precipitating Chinese yam proteins; 7) adjusting the ultrafiltration pH, ultrafiltration temperature and ultrafiltration pressure intensity of the supernatant to perform ultrafiltration; 8) performing vacuum freeze drying on an intercepted part to obtain a Chinese yam polysaccharide. In the Chinese yam polysaccharide extracting method, the Chinese yam polysaccharide is extracted by an ultrafiltration concentration method, so that the polysaccharide extracting rate is up to 88.69 percent; moreover, the method is easy to operate, and is easy to implement. As proved by component measurement, infrared spectrum analysis, scanning electron microscope analysis and antioxidant activity measurement, the purity of the Chinese yam polysaccharide is 43.84 percent, and high antioxidant activity is achieved.

The invention discloses a gas state tritium activity measuring method with a low activity. The method is applied to a gas state tritium activity measuring device, and comprises collection of gas state tritium samples, calibration of measuring results when no standard gas state tritium samples exist, and proceeding of activity measurement for gas state tritium samples with unknown activities by means of using of calibration results. As for tritium samples with high activities, the tritium samples are diluted through choosing and using of buffer bottles in different sizes. After measurement is finished, different methods are adopted to clean a proportional counter according to the measured activities, and memory effect of residual gas state tritium for the proportional counter is reduced to the greatest extent. The gas state tritium activity measuring method can effectively use the tritium samples with the known activities to calibrate, achieves effective measurement of the tritium samples with different activities to obtain accurate activity values, and improves accuracy of the low background gas state tritium activity measuring method.

A method and apparatuses for determining the total content of proteases by means of measuring their enzyme activity after previous deinhibition is disclosed. In biological samples, lysosomal proteases are completely (e.g. in blood serum) or partly (e.g. in tissue homogenates) inhibited. A method proposed for the deinhibition entails immersing a solid support material (e.g. nylon or nitrocellulose) as plastic strip to which is linked, covalently or by adsorption, an inhibitor-binding substance which binds the inhibitor corresponding to the protease more strongly than the protease in the sample for measurement. After the deinhibition has taken place, the plastic strip is removed from the liquid sample for measurement, and the sample for measurement is passed on for measurement of the enzyme activity. Fluorogenic substrates from which the fluorogen 7-amino-4-trifluoromethylcoumarin is eliminated proved to be particularly advantageous for the activity measurement. These substrates make it possible for the sensitivity on measurement in microtitre plates with a fluorescence reader to be at least 10 times higher compared with conventional AMC substrates in blood serum, and thus for the fluorimetric determination of such enzyme activities in blood serum to be efficient with this measuring arrangement which is widely used in clinical laboratories.