thresholds time and frequency oscillations
báo cáo hóa học: " Time and frequency domain methods for quantifying common modulation of motor unit firing patterns" pot
Ngày tải lên :
19/06/2014, 10:20
... for low frequency common drive time versus frequency domain techniques Regression plots for low frequency common drive time versus frequency domain techniques Regression plots for low frequency ... peak value and its frequency or the frequency range of significant coherence In Figure there is significant coherence between 0.5 and 3.5 Hz and the peak value of coherence is 0.46 and occurs ... ∆ /2 (9) otherwise where f and ∆ are the center frequency and bandwidth of the ideal bandpass filter The cross-correlation function between filtered signals y1 (t) and y2 (t) is given by: Ry1y2...
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Báo cáo hóa học: " Research Article Time and Frequency Synchronisation in 4G OFDM Systems" pdf
Ngày tải lên :
21/06/2014, 22:20
... the carrier frequency and sampling frequency offsets estimation and tracking were tested for frequency offsets of δ f = 0.01 and δ f = 0.05 and the sampling frequency offsets of δTs = ppm and 30 ppm ... synchronisation MSE of Schmidl and Cox algorithm and the proposed algorithm for A1, B1, and C2 channels 6.2 DPLL Both sampling frequency offset estimate M,k and carrier frequency offset estimate δ ... algorithms, at the cost of moderate complexity, gave accurate time and frequency offset estimates The carrier and sampling frequency offset estimation and tracking algorithm, based on the channel estimates,...
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Báo cáo hóa học: " Performance Analysis of Multiple-Symbol Differential Detection for OFDM over Both Time- and Frequency-Selective Rayleigh Fading Channels" doc
Ngày tải lên :
23/06/2014, 01:20
... the time- and frequency- selective Rayleigh fading channel with fD = 0.01, Tm = 2/64, Ns = 64, G ≥ Figure Note that the OFDM system with Ns = 64, a carrier frequency of GHz, a bandwidth of MHz, and ... scenario and ideal interleaving In this paper, the performance of MSDD combined with OFDM is analyzed over time- and frequency- selective Rayleigh fading channels Assuming the guard time is longer ... differential encoding The discrete -time baseband equivalent model of the system under consideration is described in Figure Informa- Add guard interval Time- and frequencyselective channel White...
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Báo cáo hóa học: " Spectrally Efficient Communication over Time-Varying Frequency-Selective Mobile Channels: Variable-Size Burst Construction and Adaptive Modulation" pot
Ngày tải lên :
22/06/2014, 23:20
... or (2), is used, the coherence time TC is inversely proportional to the both carrier frequency fc and the mobile speed vm Hence, with an increase of the carrier frequency fc in modern systems, ... 100 km/h) With an increased carrier frequency, for example, fc < 3.5 GHz in the developing IEEE802.20 standard, the coherence time reduces to TC ≈ 3.6 ms, and with target bitrates on the order ... nth time instant (10) where ν is a Bernoulli random variable, ηs , η f the correlation coefficients for each state, and us , u f the noise terms Hence, by appropriately assigning values to ηs and...
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Báo cáo y học: "Different effect of exercise on left ventricular diastolic time and interventricular dyssynchrony in heart failure patients with and without left bundle branch block"
Ngày tải lên :
05/11/2012, 11:32
... and the corresponding LDT values were found in both IDCM subgroups Results Systolic and diastolic time intervals The clinical characteristics and time interval details of the patient groups and ... systole and diastole (method of calculation) The absolute duration of left ventricular systole was defined as the time interval between the onset of the R-wave and the minimal volume on the time- activity ... ventricular systole was derived as the product of absolute systolic time and heart rate and expressed in seconds per minute Diastolic time was calculated as the cardiac length (RR interval) minus the...
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Modeling the Statistical Time and Angle of Arrival Characteristics of an Indoor Multipath Channel
Ngày tải lên :
20/11/2012, 11:32
... the arrival times of clusters and the arrival times of rays within clusters The time of arrival of each cluster is an exponentially distributed random variable conditioned on the time of arrival ... 900 MHz and 2.4 GHz ranges At this time some commercially available wireless products are available that use primarily the 900 MHz band, and in some cases the 2.4 GHz band Both of these bands, ... certain impulse response with respect to time and angle at a given frequency At a lower frequency, the transmission and reflection characteristics of the walls and objects will be different, likely...
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Changes of temperature data for energy studies over time and their impact on energy consumption and CO2 emissions. The case of Athens and Thessaloniki – Greece
Ngày tải lên :
05/09/2013, 16:10
... indicator and the basis for calculations of heating and cooling energy demand [1] or for estimating bin data and heating and cooling degree-days at any base [2, 10, 11] Table shows the monthly and ... cooling demands is 28.5% and for Thessaloniki 13.2% Obviously, directly proportional to the energy demand for heating and cooling is the fuel (diesel oil) and electricity consumption and hence ... caution and need further investigation, since the decade time horizon is relative short for drawing solid conclusions regarding the climate and consequently the estimation of energy demands and CO2...
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Time and performance a three part study examining the relationships of job experience, organizational tenure, and age with job performance
Ngày tải lên :
11/09/2013, 11:44
... understanding of generalizable changes of performance over time, this paper examines the nature of the relationship between performance and time over the span of employees’ careers Page Time and ... encourage discussion and suggestions Page Time and Performance CAHRS WP 01-05 ABSTRACT Theoretical and empirical research suggests that job experience, organizational tenure, and age have non-linear ... SERIES Time and Performance: A Three-Part Study Examining the Relationships of Job Experience, Organizational Tenure, and Age with Job Performance Michael C Sturman Working Paper 01 – 05 Time and...
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Change time and change tense
Ngày tải lên :
16/10/2013, 08:15
... time These are repeated again and again through time Adverbs of frequency are common time markers in the present tense They tell how often an action is repeated: always, usually, often, sometimes, ... began and ended in the past Durative verbs which show a period of time are: be, live, have, and rule Time markers which show the length of this time period are for (for 135 million years) and from ... certain ways: punctual verbs, durative verbs, and non-continuous verbs to teach the proper use of time markers to show points in time, frequency, and duration for each tense Because this is a...
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Estimating time and costs
Ngày tải lên :
24/10/2013, 08:20
... additional new materials Consult and revise Develop second draft Pilot and review Revise and create third draft Activity 3: estimate design time needed Estimate time for review of existing materials ... salaries, taxation, holiday Estimating time and costs 91 allowances, overtime payments, training, travel and subsistence There may also be accommodation costs for staff and equipment for the duration ... delivered and what cannot Productive time may only amount to 3.5 to days per week, and time needs to be built in for meetings, communication, coordination and for linemanagement arrangements You...
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English Collocations in Use Intermediate_Number and frequency
Ngày tải lên :
01/11/2013, 11:20
... any jokes, as I'm really bad at telling jokes So I'll no more than wish Jim and Sandra luck and hope they have a long and happy life together Business conversation Paula: David: David, I wonder ... drove at breakneck speed along the m o t o r w a y and was soon stopped by the police (carelessly fast and dangerous] Slow m o v e m e n t and stopping It was fascinating to see the winning goal ... the traffic slowed to a crawl and then finally came to a standstill He always does everything in an unhurried manner, (slow; implies slight criticism] We got up late and had a leisurely breakfast,...
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MANAGING TIME AND BEING PREPARED
Ngày tải lên :
02/11/2013, 15:20
... Y B E R S PA C E Time Management • www.gmu.edu/gmu/personal /time. html—Tips and strategies for effective time management • www.bigchalk.com—Tips and strategies for effective time management in ... long-term, medium-term, and short-term • Learn to manage your time both before and during the test • Be prepared mentally, physically, and functionally Managing Time and Being Prepared ... and physically for exams WHAT IS TIME MANAGEMENT? Time management is a skill that you will use your whole life You will either be very good at managing your time, very poor at managing your time, ...
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Tài liệu Change time and change tense pptx
Ngày tải lên :
14/12/2013, 21:15
... time These are repeated again and again through time Adverbs of frequency are common time markers in the present tense They tell how often an action is repeated: always, usually, often, sometimes, ... began and ended in the past Durative verbs which show a period of time are: be, live, have, and rule Time markers which show the length of this time period are for (for 135 million years) and from ... certain ways: punctual verbs, durative verbs, and non-continuous verbs to teach the proper use of time markers to show points in time, frequency, and duration for each tense Because this is a...
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Tài liệu MIXERS AND FREQUENCY DISCRIMINATORS pdf
Ngày tải lên :
23/01/2014, 01:20
... designed to monitor bearing, polarization, and frequency of AM or FM radiated signals A frequency discriminator uses a phase discriminator and adds a power divider and delay line at the RF input as shown ... reference and delay path The differential delay (T) creates a phase difference (2) between Signal "A" at the two signals which is a linear function of Frequency "f " frequency (f) and is given ... horizontal and vertical input of an oscilloscope, the resultant display angle will be a direct function of frequency Delay Line of time T Power Divider Phase Discriminator Figure Frequency Discriminator...
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Tài liệu Of Time and Texas doc
Ngày tải lên :
17/02/2014, 21:20
... blazing red bandana Briskly, he snapped a tall ten-gallon hat on his head, and stepped to the Time Door Gripping an ebony handle, he tugged upward The huge metal door oiled slowly back "Time, " said ... grayness of the Time Door Faint yips and whoopings were distinct above the rumble The sounds grew steadily—to a thousand beating drums—to a rolling sea of thunder! Shrieking, the reporters and photographers ... company, and a chess enthusiast, he now writes full time and adds, "My main ambition in life is to write SF for the next forty years!" There are many ways—murder included—in which husbands can...
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Memory performance in healthy elderly without Alzheimer’s disease: effects of time and apolipoprotein-E pptx
Ngày tải lên :
05/03/2014, 21:20
... Relationship of Time of Follow-up and APOE-4 to Memory, Visuospatial and Language Performance in Healthy Elderly Over years* Variable Memory Factor Time Time*APOE-4Š Visuospatial Factor Time Time*APOE-4 ... education, ethnic group, APOE-e4, Time and Time* APOE-4 APOE-4 was not associated with performance on any factor Š Time* APOE-4 is an interaction term see text for explanation Time is the duration of ... visuospatial and tests of reasoning were the main contributors These included the Rosen Drawing Test [45], matching and recognition components of the Benton Visual Retention Test [4] and the Identities and...
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