Measure signal

Introduction to shock & vibration gives an introduction to vibration through a description of the most common mechanical parameters leading to the behaviour of simple mass spring systems. Furthermore the different types of signals and their description is treated and the conversion between the different parameters is described mathematically and graphically. Finally the measurement units are defined.

36p vanquanpl 18-05-2015 58 8   Download

The objective of this research is to study the effect of onset of physical fatigue/stress during isometric and dynamic contractions based on the changes in physiological signal i.e. SEMG. Therefore, the intention of this present investigation is to assess the repeatability of common muscle fatigue measures, including amplitude and spectral measures of EMG and further, to determine the adequacy of different measures in detection of onset of localized muscle fatigue.

122p runthenight07 01-03-2023 11 3   Download

This study develops an online unmanned UAV path-planning strategy for autonomous search and localisation of RF emitter. The UAV is equipped with Receiver Signal Strength (RSS) sensors to localise stationary radio frequency (RF) emitter. A high-fidelity non-linear measurement model of RF propagation in an urban environment is adopted for this purpose. The measurement model of the likelihood function is considered a Gaussian mixture.

105p runthenight04 02-02-2023 7 2   Download

Mục tiêu của đề tài "Xây dựng hệ thống đo lường hiệu năng giao thông Signal Performance Measurement" là xây dựng nền tảng SPM (signal performance mesurement) dựa trên đám mây cho phép các cơ quan quản lý giao thông và các chuyên gia trong ngành giao thông để cải thiện hiệu quả của các nút giao thông trọng điểm, cho phép việc quản lý các giao lộ được tối ưu hóa. Ngoài ra, hệ thống giản hóa việc quản lý giao lộ và làm nổi bật các khu vực có vấn đề chính với các khả năng nâng cao như trình tạo logic cảnh báo, giúp các chuyên gia giao thông ưu tiên hành động của họ dễ dàng hơn nhiều.

28p bigdargon08 13-02-2023 31 11   Download

Amplitude distortion: Voice channel occupies the band from 300 to 3400 Hz. Some frequencies are attenuated more than others. Phase distortion Velocity of propagation varies with frequency. Filter: increase toward band center and decrease toward band edge.

18p vanmanh1008 24-06-2013 62 4   Download

2-Aminoethoxydiphenyl Borate (2-APB) has been extensively used recently as a membrane permeable modulator of inositol-1,4,5-trisphosphate-sensitive Ca2+ channels and store-operated Ca2+ entry. Here, we report that 2-APB is also an inhibitor of sarco/endoplasmic reticulum Ca2+ATPase (SERCA) Ca2+ pumps, and additionally increases ion leakage across the phospholipid bilayer. Therefore, we advise caution in the interpretation of results when used in Ca2+ signalling experiments.

10p system191 01-06-2013 41 4   Download

Ceramide is a lipid second messenger that acts on mul-tiple-target enzymes, some of which are involved in other signal-transduction systems. We have previously demon-strated that endogenous ceramide modifies the metabolism of brain ethanolamine plasmalogens. The mechanism involved was studied. On the basis of measurements of breakdown products, specific inhibitor effects, and previ-ous findings, we suggest that a plasmalogen-selective phospholipase A2 is the ceramide target.

11p tumor12 20-04-2013 35 3   Download

Ca 2+ and cAMP are ubiquitous second messengers in euk-aryotes and control numerous physiological responses ran-ging fromfertilization to cell death induction 1 . Todistinguish between these different responses, their subtle regulation in time, space and amplitude is needed. Therefore, the char-acterization of the signalling process requires measurement of secondmessengers with tools of precise localization, high dynamic range and as little disturbance of cell physiology as possible.

10p fptmusic 16-04-2013 41 4   Download

The development of targeted probes (based on the molecular engineering of luminescent or fluorescent proteins) has allowed the specific measure-ment of [Ca 2+ ] in intracellular organelles or cytoplasmic subdomains. This approach gave novel information on different aspects of cellular Ca 2+ homeostasis. Regarding mitochondria, it was possible to demonstrate that, upon physiological stimulation of cells, Ca 2+ is rapidly accumulated in the matrix.

10p fptmusic 11-04-2013 41 2   Download

We used two inhibitors of the signaling enzyme phosphatidylinositol 3-kin-ase (PtdIns3K), wortmannin and LY294002, to evaluate the potential involvement of PtdIns3K in the activation of the MAP kinases (MAPK), Erk1 and Erk2. In dose–response studies carried out on six different cell lines and a primary cell culture, we analyzed the ability of the inhibitors to block phosphorylation of protein kinase B⁄akt (PKB⁄akt) at Ser473 as a measure of PtdIns3K activity, or the phosphorylation of Erk1⁄2 at activa-ting Thr⁄Tyr sites as a measure of the extent of activation of MAPK⁄Erk kinase (MEK⁄Erk).

13p fptmusic 11-04-2013 47 2   Download

Due to the unavoidable nonbiological variations accompanying many experiments, it is imperative to consider a way of unravelling the functional interaction structure of a cellular network (e.g. signalling cascades or gene networks) by using the qualitative information of time-series experimental data instead of computation through the measured absolute values.

10p fptmusic 11-04-2013 50 3   Download

General and simple principles are identified that govern signal transduc-tion. The effects of kinase and phosphatase inhibition on a MAP kinase pathway are first examinedin silico. Quantitative measures for the control of signal amplitude, duration and integral strength are introduced. We then identify and prove new principles, such that total control on signal ampli-tude and on final signal strength must amount to zero, and total control on signal duration and on integral signal intensity must equal)1.

15p awards 05-04-2013 46 3   Download

To better define the mechanism of membrane protein insertion into the membrane of the endoplasmic reticulum, we measured the kinetics of translocation across microsomal membranes of the N-terminal lumenal tail and the lumenal domain following the second transmembrane segment (TM2) in the multispanning mouse protein Cig30. In the wild-type protein, the N-terminal tail translocates across the membrane before the down-stream lumenal domain.

0p awards 05-04-2013 47 2   Download

The effect ofb-lactoglobulin encapsulation in sodium bis (2-ethylhexyl) sulfosuccinate reverse micelles on the envi-ronment of protein and on Trp was analysed at different water contents (x0).CDdataunderlined thedistortionof the b-sheet and a less constrained tertiary structure as the x0 increased, in agreement with a concomitant red shift and a decrease in the signal intensity obtained in steady-state fluorescence measurements.

11p dell39 03-04-2013 43 3   Download

The mitochondrial respiratory complex II, or succinate:ubiquinone oxido-reductase, is an integral membrane protein complex in both the tricarboxy-lic acid cycle (Krebs cycle) and aerobic respiration. The gene sequences of each complex II subunit were measured by RT-PCR. N-terminal sequen-cing work was performed to identify the mitochondrial targeting signal peptide of each subunit.

6p galaxyss3 21-03-2013 50 3   Download

EURASIP Journal on Applied Signal Processing 2003:10, 941–952 c 2003 Hindawi Publishing Corporation Physically Informed Signal Processing Methods for Piano Sound Synthesis: A Research Overview ´ Balazs Bank Department of Measurement and Information Systems, Faculty of Electronical Engineering and Informatics, Budapest University of Technology and Economics, H-111 Budapest, Hungary Email: bank@mit.bme.hu Federico Avanzini Department of Information Engineering, University of Padova, 35131 Padua, Italy Email: avanzini@dei.unipd.

12p sting12 10-03-2012 47 4   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article A Novel Signal Processing Measure to Identify Exact and Inexact Tandem Repeat Patterns in DNA Sequences

7p dauphong19 07-03-2012 37 5   Download

LINEAR SIGNAL CONDITIONING TO SIX-SIGMA CONFIDENCE INTRODUCTION Economic considerations are imposing increased accountability on the design of analog I/O systems to provide performance at the required accuracy for computerintegrated measurement and control instrumentation without the costs of overdesign. Within that context, this chapter provides the development of signal acquisition and conditioning circuits, and derives a unified method for representing and upgrading the quality of instrumentation signals between sensors and data-conversion systems....

20p huggoo 20-08-2010 89 6   Download

Television is a means of changing patterns of light into electrical signals for storage or transmission and then recreating those patterns on a screen. In order to do this well, the television camera must be presented with properly illuminated scenes. The three important considerations are overall level, contrast range, and color temperature. Level Lighting levels for television are generally set by adjusting the incident light, or the light striking the subject.

6p grandic 23-07-2010 192 51   Download

The analog input modules convert analog signals from the process into digital signals for processing within the PLC. The modules feature: Resolution from 9 to 15 bits + sign (for different conversion times), configurable Different measuring ranges; the basic current/voltage range settings are adjusted mechanically via measurement range modules. Fine adjustments are made with the STEP 7 Hardware Configuration tool on a PG.

5p hoandk4 25-03-2010 219 31   Download