137 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 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 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.

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.

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.

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.