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Journal articles on the topic 'Input analyzer'

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Published: 4 June 2021
Last updated: 4 February 2022

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1

Pradhan, D. K., S. K. Gupta, and M. G. Karpovsky. "Aliasing probability for multiple input signature analyzer." IEEE Transactions on Computers 39, no. 4 (1990): 586–91. http://dx.doi.org/10.1109/12.54855.

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2

Yongmook Kim and Kuk Kim. "Logic Analyzer of Composite Hangul Unitsfor Implementation of Input Methods." Korean Journal of Cognitive Science 28, no. 4 (2017): 223–43. http://dx.doi.org/10.19066/cogsci.2017.28.4.002.

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3

Hou, Yonghong, Guihua Liu, Qing Wang, and Wei Xiang. "Performance Optimization of Digital Spectrum Analyzer With Gaussian Input Signal." IEEE Signal Processing Letters 20, no. 1 (2013): 31–34. http://dx.doi.org/10.1109/lsp.2012.2227255.

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4

Kuzmin, M. S., and S. A. Rogov. "A folded-spectrum analyzer with a liquid-crystal input device." Technical Physics Letters 40, no. 8 (2014): 629–31. http://dx.doi.org/10.1134/s1063785014080082.

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5

Morii, M., and K. Iwasaki. "A note on aliasing probability for multiple input signature analyzer." IEEE Transactions on Computers 42, no. 9 (1993): 1152. http://dx.doi.org/10.1109/12.241605.

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6

Menshikov, Maxim Aleksandrovich. "Review of Static Analyzer Service Models." Proceedings of the Institute for System Programming of the RAS 33, no. 3 (2021): 27–40. http://dx.doi.org/10.15514/ispras-2021-33(3)-2.

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The static program analysis is gradually adopting advanced use cases, and integration with programming tools becomes more necessary than ever. However, each integration requires a different kind of functionality implemented within an analyzer. For example, continuous integration tools typically analyze projects from scratch, while doing the same for code querying is not efficient performance-wise. The code behind such use cases makes «service models», and it tends to differ significantly between them. In this paper, we analyze the models which might be used by the static analyzer to provide its services based on aspects of security, performance, long-term storage. All models are assigned to one of the groups: logical presence (where the actual computation is performed), resource acquisition, input/output, change accounting and historic data tracking. The usage recommendations, advantages and disadvantages are listed for each reviewed model. Input/output models are tested for actual network throughput. We also describe the model which might aggregate all these use cases. The model is partially evaluated within the work-in-progress static analyzer Equid, and the observations are presented.
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7

Ida, I., K. Ito, and Y. Okano. "Accurate measurement of small input resistances using a conventional network analyzer." IEEE Transactions on Antennas and Propagation 47, no. 2 (1999): 389–91. http://dx.doi.org/10.1109/8.761080.

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8

GhONIEMY, M., REDA SEIREG, SAYED BAHGAT, and AHMED MOHAMED. "IMPROVED COMPACT SIGNATURE ANALYZER BASED ON MULTIPLE INPUT SHIFT REGISTER ( MISR)." International Conference on Aerospace Sciences and Aviation Technology 7, ASAT CONFERENCE (1997): 1–16. http://dx.doi.org/10.21608/asat.1997.25446.

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9

Peterson, A. M., K. S. Chen, and I. R. Linscott. "The Multichannel Spectrum Analyzer." Symposium - International Astronomical Union 112 (1985): 373–83. http://dx.doi.org/10.1017/s0074180900146716.

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The MCSA is a special-purpose digital signal processor. Its main function is to filter a wide-band signal into many narrower bands, so that each of the output bands has a bandwidth that is a better match to the signal being searched for.The basic MCSA provides simultaneous output bandwidths of approximately 1 HZ, 32 Hz, 1024 Hz, and 74 kHz over a spectrum that is about 8 MHz wide. The input to the MCSA consists of a complex signal sampled at 10 MHz, and the outputs consist of either complex samples or power (square-law-detected) samples. In addition, the MCSA provides an accumulator for taking the integral of the power of the output bands for periods up to 1000 sec.The MCSA hardware is constructed using wire-wrap technology. The implementation of the hardware is done with the aid of a computer program developed specifically for the design of the MCSA. Care has been taken in the MCSA design to ensure that engineering tradeoffs do not adversely affect the performance of the system.
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10

Wu, Wenhao, Yu Yu, Wei Liu, and Xinliang Zhang. "Fully integrated CMOS-compatible polarization analyzer." Nanophotonics 8, no. 3 (2019): 467–74. http://dx.doi.org/10.1515/nanoph-2018-0205.

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AbstractPolarization measurement has been widely used in material characterization, medical diagnosis and remote sensing. However, existing commercial polarization analyzers are either bulky schemes or operate in non-real time. Recently, various polarization analyzers have been reported using metal metasurface structures, which require elaborate fabrication and additional detection devices. In this paper, a compact and fully integrated silicon polarization analyzer with a photonic crystal-like metastructure for polarization manipulation and four subsequent on-chip photodetectors for light-current conversion is proposed and demonstrated. The input polarization state can be retrieved instantly by calculating four output photocurrents. The proposed polarization analyzer is complementary metal oxide semiconductor-compatible, making it possible for mass production and easy integration with other silicon-based devices monolithically. Experimental verification is also performed for comparison with a commercial polarization analyzer, and deviations of the measured polarization angle are <±1.2%.
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11

Novkovic, Dusan, Laslo Nadjdjerdj, Aleksandar Kandic, Ivana Vukanac, and Mirjana Djurasevic. "Experimental testing of the digital multichannel analyzer for gamma spectrometry measurements." Nuclear Technology and Radiation Protection 23, no. 1 (2008): 43–46. http://dx.doi.org/10.2298/ntrp0801043n.

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The results of experimental testing of the digital multichannel analyzer which digitalizes the signal after a preamplifier are presented. The recordings of some of the characteristics of the spectrometer containing a digital MCA, such as full-peak efficiency, net area ratio of the two peaks and the stability of the peak position, were carried out under different input counting rates, with different radioactive sources. The tested MCA has shown some excellent features, like the stability of the peak position over a long-term period and flexibility in the adjusting of optimum measurement conditions. However, the performed tests have also shown some serious and unexpected disadvantages of the digital MCA when it operates under certain circumstances, one of them having to do with the automatic tuning of live-time correction at low-input counting rates.
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12

Hefnawi, Mostafa, Joey Bray, Jonathan Bathurst, and Yahia Antar. "MIMO Radar Using a Vector Network Analyzer." Electronics 8, no. 12 (2019): 1447. http://dx.doi.org/10.3390/electronics8121447.

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In this paper, a multiple-input multiple-output (MIMO) radar system was developed using a Keysight’s N5244A 4-port PNA-X network analyzer and Simulink. The system can transmit and receive TDM stepped-frequency continuous wave signals with a total sweep bandwidth of 450 MHz. The system also provides a reliable, self-contained phase-coherent RF front-end across four RF channels, which is a critical requirement for MIMO Radar signal processing algorithms. A Simulink model was built to organize the collected S-parameters into a virtual array and to perform IFFT processing so that range and angle information from targets could be extracted. The experimental results show the ability of the MIMO radar to distinguish between multiple closely spaced targets with a 33 cm range resolution and a 19o angle resolution.
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13

Prathibha, R. J., K. H. Manju Skanda, S. Juned, Anup R. Shetty, and B. V. Shashank. "Metric Analyzer for Kannada Verse Using Rule-Based Approach." Journal of Computational and Theoretical Nanoscience 17, no. 9 (2020): 4007–11. http://dx.doi.org/10.1166/jctn.2020.9009.

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Metrical poetry in any language is called Chandassu ( ). It generates rhythm to poem when the predefined metric rules are properly followed. The classification of Chandassu is done with the help of syllables known as Laghu ( ), Guru (....) and Gana (..). The proposed metric analyzer for Kannada verse is a rule-based teaching and learning tool devised to identify and classify the Chandassu of input Kannada poem. This tool also contains an exercise module to test the level of understanding of learners about metric analysis. Accuracy obtained by the proposed system is very good.
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14

Shevchenko, S. I. "About the lower and upper input of electrons in cylindrical mirror analyzer. Part 1." NAUCHNOE PRIBOROSTROENIE 25, no. 3 (2015): 19–28. http://dx.doi.org/10.18358/np-25-3-i1928.

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15

Baranova, L. A. "Cylindrical mirror energy analyzer with the input of charged particles through end-surface diaphragm." Technical Physics 61, no. 8 (2016): 1272–74. http://dx.doi.org/10.1134/s1063784216080041.

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16

Zhu, Long, Hong-Fu Wang, Shi-Lei Su, Qi Guo, Li-Li Sun, and Shou Zhang. "Nondestructive N-atom Greenberger–Horne–Zeilinger state analyzer via the cavity input–output process." Journal of the Optical Society of America B 29, no. 8 (2012): 2156. http://dx.doi.org/10.1364/josab.29.002156.

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17

Zhu, Long, Shi-Lei Su, Qi Guo, Liu-Yong Cheng, Hong-Fu Wang, and Shou Zhang. "Realization of nondestructive multi-atom cluster state analyzer via the cavity input–output process." Quantum Information Processing 12, no. 8 (2013): 2749–63. http://dx.doi.org/10.1007/s11128-013-0556-2.

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18

Zouros, TJM, A. Kanellakopoulos, I. Madesis, et al. "The Optimization of a 4-Element Input Lens on a Hemispherical Deflector Analyzer Using SIMION." Microscopy and Microanalysis 21, S4 (2015): 148–53. http://dx.doi.org/10.1017/s143192761501329x.

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19

Goessel, Michael, and Egor S. Sogomonyan. "A parity-preserving multi-input signature analyzer and its application for concurrent checking and BIST." Journal of Electronic Testing: Theory and Applications (JETTA) 8, no. 2 (1996): 165–77. http://dx.doi.org/10.1007/bf02341822.

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20

Aronov, L. A., Yu S. Dobrolensky, and G. V. Kulak. "Statistic Model of Homodyne Acousto-Optic Spectrum Analyzer." Journal of the Russian Universities. Radioelectronics 23, no. 1 (2020): 52–62. http://dx.doi.org/10.32603/1993-8985-2020-23-1-52-62.

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Introduction. Acousto-optic spectrum analyzers interferometric schemes have been developed to increase dynamic range. It was assumed that dynamic range, expressed in dB, would double. An expected increase was not achieved yet.Aim. To analyze the homodyne acousto-optic spectrum analyzer noise characteristics, to estimate the signal-tonoise ratio and the dynamic range.Materials and methods. A mathematical model was compiled which took into account the need to form quadrature components to obtain an amplitude spectrum of an input signal, shot noise and readout noise.Results. An interferometric scheme did not allow to achieve dynamic range doubling compared to an acoustooptical power spectrum analyzer. The dynamic range increase was less than 1.35 dB. Constant illumination led to a significant increase of the spectrum analyzer self-noise due to shot noise, compared to which thermal noise and readout noise became insignificant. The spurious-free dynamic range estimation expression was obtained. It was prior determined by acousto-optic interaction nonlinearity. With typical analyzer blocks parameters the spurious-free dynamic range covered a single-signal dynamic range. Signal-to-noise ratio estimation expression was presented.Conclusion. The homodyne acousto-optic spectrum analyzer single-signal dynamic range is determined primarily by the photosensor saturation charge. One needs to optimize their relation by taking into account light source power, acousto-optical modulator diffraction efficiency and photosensor saturation charge. Presented noise model gives more accurate estimation of the dynamic range with an error of 1 dB.
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21

Jalar, A., Zainudin Kornain, Rozaidi Rasid, Saifollah Abdullah, and Norinsan Kamil Othman. "The Effect of Underfill Fillet Geometry to Die Edge Stress for Flip Chip Packaging." Advanced Materials Research 148-149 (October 2010): 1108–11. http://dx.doi.org/10.4028/www.scientific.net/amr.148-149.1108.

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The possible source of die edge cracking for Flip Chip Ceramic Ball Grid Array (FC-CBGA) package due to thermal cycling have been investigated in this study. Finite Element Analysis (FEA) models were used to analyze the effect of underfill fillet geometry on interfacial stresses between die edge and the underfill fillet. The input parameters of FC-CBGA from industry was used for simulation and the properties of commercial underfill were extracted by using Thermal Mechanical Analyzer (TMA) and Dynamic Mechanical Analyzer (DMA). Die stress distribution for different fillet height were generated to depict variation of stress due thermal loading. The variation of tensile stress due different fillet height and width were discussed for parameters optimization.
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22

Sharma, R., I. S. Nedzelskiy, A. Malaquias, and R. B. Henriques. "Design and optimization of the electrostatic input module for the ISTTOK Tokamak HIBD cylindrical energy analyzer." Journal of Instrumentation 12, no. 11 (2017): C11018. http://dx.doi.org/10.1088/1748-0221/12/11/c11018.

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23

Stone, Lewis W., Ronald R. Simmons, Heber D. Jones, David J. Carter, and Roger S. Christiansen. "Effects of Chemical Defense Antidotes (Atropine) on Aviator Performance (Simulated Flight and Zero Input Tracking Analyzer)." Proceedings of the Human Factors Society Annual Meeting 30, no. 12 (1986): 1187–91. http://dx.doi.org/10.1177/154193128603001211.

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Army aviation is at serious risk in chemical and biological warfare environments. One of the potential countermeasures for aviators against the chemical threat is the development of antidote and pretreatment drugs. Just as the chemical agent carries the threat of degrading aviator performance, antidote and pretreatment drugs could independently produce problems either alone or in combination with an agent. This paper briefly outlines part of the first phase of a systematic program using controlled, simulated flight conditions and a Zero Input Tracking Analyzer (ZITA) to identify and measure flight performance and psychomotor effects of unchallenged atropine (one of the chemical defense antidotes) on aviators. Each of 12 U.S. Army helicopter aviators voluntarily received 3 dosages: 0 mg (saline solution), 2 mg of atropine sulfate, and 4 mg of atropine sulfate. Results indicate that simulator flight performance data did prove to be sensitive in identifying and measuring effects of 4 mg of atropine. Additionally, some ZITA tests showed a statistically significant degradation with the 4 mg dosage.
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24

Subekti, Subekti, Muhammad Nurul Hidayat, Basuki Dwi Efendi, Abdul Hamid, and Alim Murwanto. "Hilbert Transform Analyzer for Mechanical Fault Detection of Vehicle Alternators." Automotive Experiences 3, no. 3 (2020): 89–95. http://dx.doi.org/10.31603/ae.v3i3.3834.

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Checking the alternator with mechanical measurements of moving parts takes sufficient time, especially in compact design engines. Therefore, this article presents a new method for alternator fault detection using the Hilbert transform application. The instantaneous amplitude and frequency are used as input variables for fault detection. Joint time-frequency analysis based on the wavelet analysis is also applied to identify the nonlinear characteristics. Various wavelet functions are examined, and some recommendations regarding the most suitable ones and the interpretation of the results are discussed. As a result, the backbone curve obtained from the instantaneous amplitude and frequency demonstrates the presence of the nonlinear phenomena, which can help make decisions about an alternator in normal conditions or indicate fault detection. From the test results, this method is very promising to be applied as part of vehicle's preventive maintenance.
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25

Likharev, S., A. Kramarenko, and V. Vybornov. "Compact back-scattered electrons' energy analyzer for standard SEM." Proceedings, annual meeting, Electron Microscopy Society of America 52 (1994): 488–89. http://dx.doi.org/10.1017/s0424820100170177.

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At present time the interest is growing considerably for theoretical and experimental analysis of back-scattered electrons (BSE) energy spectra. It was discovered that a special angle and energy nitration of BSE flow could be used for increasing a spatial resolution of BSE mode, sample topography investigations and for layer-by layer visualizing of a depth structure. In the last case it was shown theoretically that in order to obtain suitable depth resolution it is necessary to select a part of BSE flow with the directions of velocities close to inverse to the primary beam and energies within a small window in the high-energy part of the whole spectrum.A wide range of such devices has been developed earlier, but all of them have considerable demerit: they can hardly be used with a standard SEM due to the necessity of sufficient SEM modifications like installation of large accessories in or out SEM chamber, mounting of specialized detector systems, input wires for high voltage supply, screening a primary beam from additional electromagnetic field, etc. In this report we present a new scheme of a compact BSE energy analyzer that is free of imperfections mentioned above.
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Xu, Fu Hou, Dong Dong Wen, Yu Xiang Zhang, and Hua Cheng Li. "Research of EMI Structural Health Monitoring Based on BP Neural Networks." Applied Mechanics and Materials 188 (June 2012): 231–35. http://dx.doi.org/10.4028/www.scientific.net/amm.188.231.

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Based on the coupling characteristic of piezoelectric ceramics (PZT) and electro-mechanical, impedance changes were measured by the impedance analyzer. Aluminum plate’s impedance response under different load conditions was analyzed with electromechanical impedance technique. BP neural networks were established to identify the structural damage status and the RMSDR was calculated as neural network input data, then the networks was trained and validated. Experiment results show that the trained network can successfully identify the structural load state.
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27

Bai, Jian Jun, Yi Ming Wang, and Ying Cai Yuan. "Research on Energy Consumption Test and Data Process Method of Gravure Printing Machine." Applied Mechanics and Materials 738-739 (March 2015): 854–57. http://dx.doi.org/10.4028/www.scientific.net/amm.738-739.854.

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In order to achieve high-speed gravure printing machine energy consumption tested and analyzed process efficiently, put forward a kind of electric energy balance test and analysis method, using power analyzer acquire and record the electric energy balance parameters of motors input ports of the three-phase power supply, and processing the data with the method of successive difference. By means of experiment, tested and analyzed the main motor energy consumption of gravure printing machine, the results verify the feasibility of electric energy balance test method and the method of successive difference.
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28

Zhong, Bing Xiang, and Jun Ling Yang. "Error Compensation Method for Temperature Control in Trace Water Analyzer Calibration Device." Advanced Materials Research 765-767 (September 2013): 1830–33. http://dx.doi.org/10.4028/www.scientific.net/amr.765-767.1830.

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in this paper, false nearest adjacent points method will be used for error compensation of heating furnace in device for standard gas with trace water preparation. In different temperature difference between environment and heating furnace, phase space of nonlinear time series for temperature will be reconstructed, which can improve the sensitivity of the input data for NN and simplify the measurement model. Then nonlinear regression will be completed by RBF NN. So the temperature measurement model of heating furnace will be obtained. Experiment proves that the measurement error in this method is reduced greatly, also the influence of environment temperature is reduced. By the contrast experiment, the good performance of the FNN-RBFNN is verified.
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29

Oktadinata, Herry, Winarto Winarto, and Eddy S. Siradj. "Microstructure and Impact Toughness of Flux-Cored Arc Welded SM570-TMC Steel at Low and High Heat Input." Materials Science Forum 991 (May 2020): 3–9. http://dx.doi.org/10.4028/www.scientific.net/msf.991.3.

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This work investigated microstructure and impact toughness of multi-pass flux-cored arc welded SM570-TMC steel. A comparison was made between weldments fabricated with average heat input of 0.9 kJ/mm and 1.4 kJ/mm, respectively. SM570 steel plate with 16 mm nominal thickness and 1.2 mm diameter of E81-Ni1 flux-cored wire were selected in this experiment. Multi-pass flux-cored arc welding (FCAW) was performed using carbon dioxide shielding gas. Then the weldments were observed using optical microscopy, scanning electron microscope (SEM) and electron probe micro analyzer (EPMA). The steel joint strength was measured via tensile test, and Charpy impact test was performed at three different test temperatures. The microstructure observation exhibited the base metal mainly consist of ferrite and pearlite features, while the weld metal contained the acicular ferrites, polygonal ferrites and M-A constituent at both different heat inputs. The impact toughness of base metal is superior than weld metals. The weld metals fabricated at average heat input of 0.9 kJ/mm have a higher low temperature impact toughness than using heat input of 1.4 kJ/mm. The acicular ferrites amount that significant reduced at the higher heat input may degrade the toughness at low temperature.
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30

Losev, Mikhail. "Synthesis of information control devices which are transferred to diagnostic network with package composition." Development Management 16, no. 4 (2019): 52–63. http://dx.doi.org/10.21511/dm.4(4).2018.05.

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In the context of growing requirements for the reliability of information and a reduction in the time of data delivery, the urgent task is the development of simple and effective means of control as a process of transmission of information and equipment in distributed systems. The problem of diagnosing the efficiency of distributed systems in data exchange networks with packet switching is considered in the paper. The proposed approach to the synthesis of data control devices is most effective in verifying the transmission of a multitude of packet messages over a datagram channel in time division mode and can be used in digital test device diagnostic systems as an initialization analyzer. The practical implementation of the proposed approach allows you to create devices that have achieved a significant reduction in hardware costs and simplify the technical implementation of signature analyzers. In this case, it is not necessary to store the input information, which provides the possibility of using different characteristic of polynomials, by automatically generating this information in the device. Parallel processing of message packets or diagnostic information allows to increase the speed of analyzers, with reception of signatures that equal the signature of a single-channel analyzer. Examples of synthesis of multichannel signature analyzers that are capable of high-speed data reliably process information, localize errors in the information input sequence and determine the number of the false packet in the message or the device from the group of verifiable devices are given.
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31

Et.al, Gaurav Sharma. "Comparative Analysis of DCF based Dispersion Compensation Techniques in Optical Fiber Communication Link using Different Input Transmitter Conditions at 10 Gbps." Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 3 (2021): 3210–26. http://dx.doi.org/10.17762/turcomat.v12i3.1567.

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In this paper, Dispersion Compensating Fiber (DCF) based various dispersion compensating techniques (pre, post and symmetrical) with different modulation format like Non Return to Zero(NRZ), Return to Zero(RZ), Carrier Suppressed Return to Zero(CSRZ) and Duo Binary(DB) along with PN, FCC and Walsh code input sequences are implemented. Simulation and analysis of these implemented techniques were done at 10 Gbps bit rate and input laser power ranging from 1 mW to 10 mW at transmission distance of 240 km using BER Analyzer in Optisystem 17.0 software. Comparison between different techniques was done in terms of Q factor and BER versus input CW laser power for different modulations and input sequences. From the analysis, it is concluded that when Walsh code as user defined input sequence are used for all the implementation, it gives higher value of Q factor and lower value of Bit Error Rate as compared to PN and FCC codes for most of the input CW laser power.
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32

Paciej, R., A. Vyshedskiy, J. Shane, and R. Murphy. "Transpulmonary speed of sound input into the supraclavicular space." Journal of Applied Physiology 94, no. 2 (2003): 604–11. http://dx.doi.org/10.1152/japplphysiol.00568.2002.

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The transpulmonary speed of sound input at the mouth has been shown to vary with lung volume. To avoid the disadvantages that exist in certain clinical situations in inputting sound at the mouth, we input sound in the supraclavicular space of 21 healthy volunteers to determine whether similar information on the relationship of sound speed to lung volume could be obtained. We measured the transit time at multiple microphones placed over the chest wall using a 16-channel lung sound analyzer (Stethographics). There was a tight distribution of transit times in this population of subjects. At functional residual capacity, it was 9 ± 1 (SD) ms at the apical sites and 13 ± 1 ms at the lung bases. The sound speed at total lung capacity was 24 ± 2 m/s and was 22 ± 2 m/s at residual volume ( P < 0.001). In all subjects, the speed of sound was faster at higher lung volume. This improved method of studying the mechanism of sound transmission in the lung may help in the development of noninvasive tools for diagnosis and monitoring of lung diseases.
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33

Sise, O. "Simulation of Electron Energy Spectra of a Biased Paracentric Hemispherical Deflection Analyzer as a Function of Entry Bias: Effects of Misalignments." Journal of Spectroscopy 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/152647.

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The performance of a biased paracentric hemispherical deflection analyzer (HDA), including fringing fields and their effect on focusing and energy resolution, is investigated using numerical methods. Electron energy spectra are calculated for three entry positionsR0=84 mm, 100 mm, and 112 mm and compared with the recent experimental measurements. In both experiment and calculation, the two different paracentric entry positionsR0=84 mm andR0=112 mm, on either side of the mean radius of 100 mm, are found to have a base energy resolution of about two times better than the conventional centric entry positionR0=100 mm. In order to explain the discrepancies (6–30%) between the simulated and the experimental resolutions the focusing characteristics are further investigated for different displacements of the input lens (ΔR0) with respect to the entry positionR0and the tilted input beam axis byαshiftin the dispersive direction. We have found that the blame does not in fact lie with the theory and we have shown that the input lens may have been misaligned in the experiment. Slight misalignments affect both the true energy resolution measurement and the transmission of the beam.
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34

Jena, Swagat Kumar, Satyabrata Das, and Satya Prakash Sahoo. "Design and Development of a Parallel Lexical Analyzer for C Language." International Journal of Knowledge-Based Organizations 8, no. 1 (2018): 68–82. http://dx.doi.org/10.4018/ijkbo.2018010105.

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Future of computing is rapidly moving towards massively multi-core architecture because of its power and cost advantages. Almost everywhere Multi-core processors are being used now-a-days and number of cores per chip is also relatively increasing. To exploit full potential offered by multi-core architecture, the system software like compilers should be designed for parallelized execution. In the past, various significant works have been made to change the design of traditional compiler to take advantages of the future multi-core platform. This paper focuses on adapting parallelism in the lexical analysis phase of the compilation process. The main objective of our proposal is to do the lexical analysis i.e., finding the tokens in an input stream in parallel. We use the parallel constructs available in OpenMP to achieve parallelism in the lexical analysis process for multi-core machines. The experimental result of our proposal shows a significant performance improvement in the parallel lexical analysis phase as compared to sequential version in terms of time of execution.
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35

OLORUNSOLA, OLUWATOBI, OLUWASEYE DADA, and PENGQIAN WANG. "A SPINNING POLARIZER AND SPINNING ANALYZER METHOD FOR VISUALIZING THE ISOCHROMATES IN CONOSCOPIC INTERFEROMETERS." International Journal of Modern Physics B 27, no. 30 (2013): 1350175. http://dx.doi.org/10.1142/s0217979213501750.

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We have developed a spinning polarizer and spinning analyzer (SPSA) method to visualize the whole isochromatic fringes in conoscopic interferometers for the study of optically anisotropic materials. This simple method completely eliminates the broad and dark isogyre fringes appearing in a conventional conoscopic interferometer where a linear polarizer and a linear analyzer (LPLA) are used. Our method allows the direct visualization of the isochromates on the viewing screen by eyes in real time, without the need of additional optics or detectors other than those used in a conventional conoscopic interferometer, and no additional computation is required. This method works at any polarization state of the input light, and at any wavelength permitted by the polarizers. In the case of polychromatic illumination our method reveals the isochromates of all colors indiscriminatively, in comparison to the method of circular polarizer and circular analyzer (CPCA), which is considerably subject to spectrum modulation due to the dispersion in the retardation of the quarter-wave plates. The proposed method is demonstrated in a lithium niobate ( LiNbO 3) crystal driven by an external electric field.
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36

Mazurczak, Karolina, Ewa Pańkowska, Piotr Ładyżyński, and Piotr Foltyński. "The First Use of Bolus Calculator With Speech Analyzer." Journal of Diabetes Science and Technology 11, no. 1 (2016): 7–11. http://dx.doi.org/10.1177/1932296816683963.

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Background: The insulin therapy in type 1 diabetes involves a wide array of restrictions in patients and their families. One of those is a difficulty in estimation of the insulin dose programmed for each meal. The purpose of the study is an assessment of functionalities related to the expert system VoiceDiab—a calculator of meal boluses. Methods: The sample group composed of 54 patients, aged 3-52, all suffering from type 1 diabetes, treated with the insulin pump, taking part in the clinics RCT (for adults and a pediatrician), with a randomized allocation to a surveyed group and cross-over. The research methodology was based upon questionnaires and open-ended questions. Results: 40% of respondents recognized the application’s usefulness as high (18 of 47), giving it 10 points, and easy to use (70%). Disadvantages of this app comprised lack of some products in the application database (n = 23), troubles with the mobile range ( n = 4), and no option of a manual data input for processing purposes (n = 23). Advantages, that have been mentioned the most frequently included facilitation of measurements (n = 7), enhanced life quality of the patient (n = 8), and a guarantee of prompt and thorough calculations (n = 22). Of the surveyed individuals, 50% reached their diet, while 100% gave a top grade to the application, claiming it had contributed to a more efficient metabolic control. Conclusion: The pilot scheme of the expert system VoiceDiab has potential to become an application, facilitating dosing of the meal insulin and improving the comfort and safety of insulin administering. However, it needs to be modified, as mentioned by the users who have tested the system.
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Maabid, Abdelmawgoud, Tarek Elghazaly, and Mervat Ghaith. "An Improved General Purpose Arabic Morphological Analyzer and Generator Model (GPAM)." INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 12, no. 7 (2014): 3668–88. http://dx.doi.org/10.24297/ijct.v12i7.3091.

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Although, morphological analysis is a vital part of natural language processing applications, there are no definitive standards for evaluating and benchmarking Arabic morphological systems. This paper proposes assessment criteria for evaluating Arabic morphological systems by scrutinizing the input, output and architectural design to enables researchers to evaluate and fairly compare Arabic morphology systems. By scoring some state of the art Arabic morphological analyzers based on the proposed criteria; the accuracy scores showed that the best algorithm failed to achieve a reliable rate. Hence, this paper introduced an enhanced algorithm for resolving the inflected Arabic word, identifies its root, finds its pattern and POS tagging that will reduce the search time considerably and to free up the deficiencies identified by this assessment criteria. The proposed model uses semantic rules of the Arabic language on top of a hybrid sub-model based on two existing algorithms (Al-Khalil & IAMA rules). Based on applying the proposed assessment criteria the efficiency and speed have been enhanced where the system achieved up to 1500 words per second in small text up to 3000 words per second in larger documents
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Camp, M., R. Herschmann, T. Zelder, and H. Eul. "Determination of the input impedance of RFID transponder antennas with novel measurement procedure using a modified on-wafer-prober." Advances in Radio Science 5 (June 12, 2007): 115–18. http://dx.doi.org/10.5194/ars-5-115-2007.

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Abstract. This paper shows a new method to determine the input impedance of RFID transponder antennas with a combination of on-wafer-prober and network analyzer. It is shown that the results are in a good agreement with FEM simulations (HFSS) for a large part of the examined antenna structures.
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Krycka, Kathryn, Wangchun Chen, Julie Borchers, Brian Maranville, and Shannon Watson. "Polarization-analyzed small-angle neutron scattering. I. Polarized data reduction usingPol-Corr." Journal of Applied Crystallography 45, no. 3 (2012): 546–53. http://dx.doi.org/10.1107/s0021889812003445.

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Pol-Corris a free computer program that corrects for the neutron polarization inefficiencies that are characteristic of polarization-analyzed small-angle neutron scattering experiments, namely those inefficiencies associated with a static neutron polarizer, a neutron spin flipper, beam depolarization and a time-varying neutron spin analyzer. The software is designed to interface directly with small-angle neutron scattering data acquired at the NIST Center for Neutron Research, but the algorithms are generally applicable and can be readily adapted for other data formats. The explicit neutron measurements required to characterize each polarizing element are derived, and these become the input parameters forPol-Corr.
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40

Edirisooriya, Geetani. "Closed Form Aliasing Probability For Q-ary Symmetric Errors." VLSI Design 4, no. 3 (1996): 199–205. http://dx.doi.org/10.1155/1996/29412.

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In Built-In Self-Test (BIST) techniques, test data reduction can be achieved using Linear Feedback Shift Registers (LFSRs). A faulty circuit may escape detection due to loss of information inherent to data compaction schemes. This is referred to as aliasing. The probability of aliasing in Multiple-Input Shift-Registers (MISRs) has been studied under various bit error models. By modeling the signature analyzer as a Markov process we show that the closed form expression derived for aliasing probability previously, for MISRs with primitive polynomials under q-ary symmetric error model holds for all MISRs irrespective of their feedback polynomials and for group cellular automata signature analyzers as well. If the erroneous behaviour of a circuit can be modelled with q-ary symmetric errors, then the test circuit complexity and propagation delay associated with the signature analyzer can be minimized by using a set of m single bit LFSRs without increasing the probability of aliasing.
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41

Niubo-Aleman, Thaimi, Chenyu Liang, Yunsik Hahn, J. Apolinar Reynoso-Hernandez, Jean-Pierre Teyssier, and Patrick Roblin. "Time-Domain Characterization and Linearization of a Dual-Input Power Amplifier Using a Vector Network Analyzer as the Receiver." IEEE Transactions on Microwave Theory and Techniques 69, no. 4 (2021): 2386–98. http://dx.doi.org/10.1109/tmtt.2021.3055812.

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42

Chen, Hangyu, Jingcheng Zhao, Tao Hong, Shuli Zheng, Haohui Hong, and Mohamed Cheriet. "A measurement method of fifth-generation multiple-input multiple-output antenna based on microwave imaging." International Journal of Distributed Sensor Networks 16, no. 6 (2020): 155014772093714. http://dx.doi.org/10.1177/1550147720937148.

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An increase in the quantity and density of antenna elements increases the mismatched failure rate and measurement difficulty of the multiple-input multiple-output. To simplify the measurement method of the S11 parameter utilizing the traditional vector network analyzer, this article proposes a multiple-input multiple-output measurement method based on microwave imaging. The multiple-input multiple-output element was designed, and then the existence of mismatched scattering of the mismatched state through microwave one-dimensional and two-dimensional imaging simulations was verified. A wideband Vivaldi antenna was designed for measurement imaging verification. The research results show that the proposed method is capable of detecting the mismatched scattering of mismatched elements as well as accurately locating the mismatched elements and mismatched position of circuits behind the element, which improves the measurement efficiency.
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Et. al., Seema Kedar,. "Smart Analyzer: Assisting College Management through Machine Learning and Data Analysis." Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 1S (2021): 137–45. http://dx.doi.org/10.17762/turcomat.v12i1s.1594.

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This work explores various opportunities to improvise regular tasks done by college faculty viz. Exam Result Analysis, Daily Student Attendance Analysis and Lecture Schedule Storage. Result Analysis becomes a tedious task when handled through traditional pen-paper methods and spreadsheets. This can be simplified by using Classification and Regression techniques. Through Regression, module-wise clarity of subjects can be foretold for students. Classification and Clustering algorithms can help to segregate students in various groups so that additional efforts can be taken for slow learners. It can also be used for classifying modules of a specific subject based on their complexities and course outcomes. The usage of register files for daily student attendance can be improved in a digital approach through Android and Django Framework. Through this approach, attendance can be tracked regularly and lecture (session) wise analysis can be done without the clutter of traditional pen-paper approach. Besides, for storing Lecture schedules and relevant timelines in the Realtime database furnishes additional benefits involving access to multiple users simultaneously. Technologies like Django Framework, Android OS, Realtime Database Systems and Machine Learning algorithms make these tasks simplified and less time-consuming. Data Analysis of Exam Results can be used for classifying student response to the teaching-learning process and can help in strategic outlining for future enhancements. Results of the proposed system consists of graphical representation of analysis done on input data and real time analysis of attendance data.
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Mallick, Bandana, Bibhu Prasad, and Dr Krishna Chandra Patra. "Design of a Hybrid Optical amplifier for 64 DWDM Channels network by using EDFA and Raman Amplifier." International Journal of Electrical and Electronics Research 5, no. 4 (2017): 18–23. http://dx.doi.org/10.37391/ijeer.050401.

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In this paper a hybrid amplifier EDFA-RAMAN DWDM transmission system is proposed and demonstrated. A new hybrid two-stage optical fiber amplifier for dense wavelength division multiplexing (DWDM) network is observed. The hybrid amplifier is cascaded erbium- doped fiber amplifiers (EDFA) & Raman amplifier which provide a nearly flat gain over 80 nm. The hybrid amplifier has been modeled using an Optic-System version 14 on a DWDM transmission. In this paper we compare Q-factor at different input power i.e. at 0db and at 10 db. Here two different types of apodized function (Uniform & Gaussian) are selected as fiber Bragg grating parameters and system performance is analyzed. Performance of the system is analyzed by using BER analyzer.
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Cox, K. B., and I. M. Mason. "Maximum entropy analysis of dispersed seismic signals." GEOPHYSICS 51, no. 12 (1986): 2225–34. http://dx.doi.org/10.1190/1.1442076.

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Conventional moving‐window analyzers based on Fourier transforms sometimes lack the resolution required to separate each of the modes in a seismic waveguide. It is possible to enhance the resolution of a moving‐window analyzer by using a maximum entropy power spectral estimator to approximate the spectrum of each windowed segment of a trace. Barrodale and Erickson have developed a suitable maximum entropy algorithm which can also be applied to estimating the parameters required in the fast recompression of inseam seismic arrivals. The Barrodale‐Erickson maximum entropy algorithm appears to need a sample rate of approximately ten times the Nyquist rate in order to generate meaningful maximum entropy spectra. The required increase can be achieved in the laboratory by applying an accurate interpolator to field records. Noise captures the maximum entropy spectrum if the input signal‐to‐noise ratio falls much below 10 dB. Use of a maximum entropy spectral analyzer aids in both identifying modes in a waveguide system and estimating the group velocity‐frequency characteristic parameter.
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Dietz, Marco, Andreas Bauch, Klaus Aufinger, Robert Weigel, and Amelie Hagelauer. "A 1 to 32 GHz broadband multi-octave receiver for monolithic integrated vector network analyzers in SiGe technology." International Journal of Microwave and Wireless Technologies 10, no. 5-6 (2018): 717–28. http://dx.doi.org/10.1017/s175907871800079x.

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AbstractA multi-octave receiver chain is presented for the use in a monolithic integrated vector network analyzer. The receiver exhibits a very wide frequency range of 1–32 GHz, where the gain meets the 3 dB-criterion. The differential receiver consists of an ultra-wideband low noise amplifier, an active mixer and an output buffer and exhibits a maximum conversion gain (CG) of 16.6 dB. The main design goal is a very flat CG over five octaves, which eases calibration of the monolithic integrated vector network analyzer. To realize variable gain functionality, without losing much input matching, an extended gain control circuit with additional feedback branch is shown. For the maximum gain level, a matching better than −10 dB is achieved between 1–28 GHz, and up to 30.5 GHz the matching is better than −8.4 dB. For both, the input matching and the gain of the LNA, the influence of the fabrication tolerances are investigated. A second gain control is implemented to improve isolation. The measured isolations between RF-to-LO and LO-to-RF are better than 30 dB and 60 dB, respectively. The LO-to-IF isolation is better than 35 dB. The noise figure of the broadband receiver is between 4.6 and 5.8 dB for 4–32 GHz and the output referred 1-dB-compression-point varies from 0.1 to 4.3 dBm from 2–32 GHz. The receiver draws a current of max. 66 mA at 3.3 V.
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SVILAINIS, LINAS, VYTAUTAS DUMBRAVA, and DARIUS KYBARTAS. "EVALUATION OF THE ULTRASONIC PREAMPLIFIER NOISE VOLTAGE DENSITY." Journal of Circuits, Systems and Computers 23, no. 01 (2014): 1450007. http://dx.doi.org/10.1142/s0218126614500078.

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Analysis of the noise voltage density evaluation procedures of the ultrasonic preamplifier is presented. Ultrasonic testing is demanding low noise reception channel. Techniques and equipment for ultrasonic preamplifier's noise performance evaluation are suggested. Equipment used and measurement technologies applied are described. One of the techniques suggested allows estimating the preamplifier noise with only impedance measurement results available. Sine wave correlation technique was used in the impedance measurement procedure. Another technique, not demanding the spectrum analyzer, was suggested, which uses the analog-to-digital converter (ADC) sampling and the Fourier transform to obtain the noise spectral density. Experimental results for the measured complex gain and the equivalent input noise of the preamplifier are presented. Comparison with traditional noise estimation procedure, using the spectrum analyzer is given. Both direct measurement techniques (ADC record Fourier analysis based and spectrum analyzer) indicated good match. Noise whiteness was estimated: in a region of operation frequencies, 5–7 MHz, noise can be considered as white.
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Sanchez-Gonzalez, Arturo, Nicolas Medrano, Belen Calvo, and Pedro A. Martinez. "A Multichannel FRA-Based Impedance Spectrometry Analyzer Based on a Low-Cost Multicore Microcontroller." Electronics 8, no. 1 (2019): 38. http://dx.doi.org/10.3390/electronics8010038.

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Impedance spectrometry (IS) is a characterization technique in which a voltage or current signal is applied to a sample under test to measure its electrical behavior over a determined frequency range, obtaining its complex characteristic impedance. Frequency Response Analyzer (FRA) is an IS technique based on Phase Sensitive Detection (PSD) to extract the real and imaginary response of the sample at each input signal, which presents advantages compared to FFT-based (Fast Fourier Transform) algorithms in terms of complexity and speed. Parallelization of this technique has proven pivotal in multi-sample characterization, reducing the instrumentation size and speeding up analysis processes in, e.g., biotechnological or chemical applications. This work presents a multichannel FRA-based IS system developed on a low-cost multicore microcontroller platform which both generates the required excitation signals and acquires and processes the output sensor data with a minimum number of external passive components, providing accurate impedance measurements. With a suitable configuration, the use of this multicore solution allows characterizing several impedance samples in parallel, reducing the measurement time. In addition, the proposed architecture is easily scalable.
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Bacci, Mauro, Benedetto Lanza, Roberto Linari, and Gianluca Tosini. "In vivo Skin Reflectance of the Wall Lizard, Podarcis Muralis." Applied Spectroscopy 46, no. 3 (1992): 510–12. http://dx.doi.org/10.1366/0003702924125186.

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A portable optical-fiber spectrum analyzer operating in the visible and near-infrared range was used to measure in vivo the skin reflectance of lizards of the genus Podarcis. The investigations, which we performed in connection with a study of the biological problem of the microinsular melanism, are quite safe for the examined animals and can be easily extended to spectroscopic and/or energy input studies in other animals.
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Zulfikar, Zulfikar, Shuja A. Abbasi, and Abdul Rahman M. Alamoud. "FPGA Hardware Realization: Addition of Two Digital Signals Based on Walsh Transforms." International Journal of Electrical and Computer Engineering (IJECE) 6, no. 6 (2016): 2688. http://dx.doi.org/10.11591/ijece.v6i6.12040.

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<p>This paper presents hardware realization of addition of two digital signals based on Walsh transforms and inverse Walsh transforms targeted to the Xilinx FPGA Spartan 3 board. The realization utilizes Walsh Transform to convert the input data to frequency domain and the inverse Walsh transform to reconvert the data from frequency domain. The designed system is capable of performing addition, subtraction, multiplication and Arbitrary Waveform Generation (AWG). However, in the present work, the hardware realization of addition only has been demonstrated. The Clock frequency for realization into the board is supplied by an external function generator. Output results are captured using a logic analyzer. Input data to the board (system) is passed manually through the available slide switches on-board.</p>
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